api: add CORS policy (#878 )

## Link to GitHub Issue or related Pull Request, if one exists n/a ## Description of change Adds `Access-Control-Allow-Origin: *` to the video stream server's responses. ## Testing Tested with substream project.
api: drop stale websocket / stream connections (#877 )
2026-09-30 22:14:55 -07:00 · 2026-08-20 02:58:22 -07:00 · 2026-08-19 13:37:41 -07:00 · 2026-08-19 03:10:02 -07:00 · 2026-08-18 08:57:18 -07:00 · 2026-08-18 08:16:12 -07:00
182 changed files with 36597 additions and 27220 deletions
@@ -0,0 +1,46 @@
+# Normalize every text file to LF in the repository.
+# The build runs under Linux/MinGW containers, so LF is also used in the
+# working tree; Windows editors and toolchains handle LF fine.
+* text=auto eol=lf
+
+# Windows-only files that must keep CRLF in the working tree.
+*.bat        text eol=crlf
+*.cmd        text eol=crlf
+*.sln        text eol=crlf
+*.vcproj     text eol=crlf
+*.vcxproj    text eol=crlf
+*.props      text eol=crlf
+*.filters    text eol=crlf
+
+# Files that must keep LF even if a Windows editor rewrites them.
+*.sh         text eol=lf
+*.in         text eol=lf
+*.cmake      text eol=lf
+*.mk         text eol=lf
+Makefile     text eol=lf
+Dockerfile   text eol=lf
+
+# Binary files - never touch the contents.
+*.bin        binary
+*.ico        binary
+*.ttf        binary
+*.otf        binary
+*.png        binary
+*.jpg        binary
+*.jpeg       binary
+*.gif        binary
+*.bmp        binary
+*.zip        binary
+*.7z         binary
+*.gz         binary
+*.dll        binary
+*.exe        binary
+*.lib        binary
+*.a          binary
+*.o          binary
+*.obj        binary
+*.pdb        binary
+
+# Vendored code is stored and checked out byte-for-byte as upstream ships it,
+# so re-importing a library never produces line-ending-only diffs.
+src/spice2x/external/** -text
@@ -1,32 +1,32 @@
-on: [push, pull_request]
-name: Continuous Integration
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
-jobs:
-  fw-ci:
-    name: Build
-    runs-on: ubuntu-latest
-    defaults:
-      run:
-        working-directory: ./src/spice2x
-    steps:
-      - uses: actions/checkout@v5
-      - name: Set ccache environment variables
-        run: |
-          echo "CCACHE_DIR=${{ github.workspace }}/src/spice2x/.ccache" >> $GITHUB_ENV
-      - name: Install ccache
-        uses: hendrikmuhs/ccache-action@v1.2.23
-      - name: Calculate commit SHA
-        id: vars
-        run: |
-          calculatedSha=$(git rev-parse --short ${{ github.sha }})
-          echo "COMMIT_SHORT_SHA=$calculatedSha" >> $GITHUB_ENV
-      - name: Compile
-        run: ./build_docker.sh
-      - uses: actions/upload-artifact@v6
-        with:
-          name: spice2x-ci-${{ env.COMMIT_SHORT_SHA }}
-          path: src/spice2x/bin
+on: [push, pull_request]
+name: Continuous Integration
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  fw-ci:
+    name: Build
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./src/spice2x
+    steps:
+      - uses: actions/checkout@v5
+      - name: Set ccache environment variables
+        run: |
+          echo "CCACHE_DIR=${{ github.workspace }}/src/spice2x/.ccache" >> $GITHUB_ENV
+      - name: Install ccache
+        uses: hendrikmuhs/ccache-action@v1.2.23
+      - name: Calculate commit SHA
+        id: vars
+        run: |
+          calculatedSha=$(git rev-parse --short ${{ github.sha }})
+          echo "COMMIT_SHORT_SHA=$calculatedSha" >> $GITHUB_ENV
+      - name: Compile
+        run: ./build_docker.sh
+      - uses: actions/upload-artifact@v6
+        with:
+          name: spice2x-ci-${{ env.COMMIT_SHORT_SHA }}
+          path: src/spice2x/bin
          if-no-files-found: error
@@ -1,49 +1,49 @@
-name: Draft Release
-
-on:
-  workflow_dispatch:
-
-permissions:
-  contents: write
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
-jobs:
-  release:
-    name: Build and Draft Release
-    runs-on: ubuntu-latest
-    defaults:
-      run:
-        working-directory: ./src/spice2x
-    steps:
-      - uses: actions/checkout@v5
-        with:
-          ref: main
-          fetch-depth: 0
-      - name: Clean leftover build artifacts
-        run: |
-          rm -rf .ccache dist bin cmake-build-*
-      - name: Compile
-        run: ./build_docker.sh
-      - name: Determine release name from dist filename
-        run: |
-          dist=$(basename "$(ls dist/spice2x-*.zip | grep -v -- '-full.zip')")
-          # strip the ".zip" to get the base name, e.g. spice2x-26-06-28
-          name="${dist%.zip}"
-          # the tag is the date portion, e.g. 26-06-28
-          tag="${name#spice2x-}"
-          echo "RELEASE_NAME=$name" >> $GITHUB_ENV
-          echo "RELEASE_TAG=$tag" >> $GITHUB_ENV
-      - name: Create draft release
-        uses: softprops/action-gh-release@v3
-        with:
-          draft: true
-          prerelease: true
-          tag_name: ${{ env.RELEASE_TAG }}
-          name: ${{ env.RELEASE_NAME }}
-          target_commitish: main
-          generate_release_notes: true
-          files: |
-            src/spice2x/dist/spice2x-*.zip
+name: Draft Release
+
+on:
+  workflow_dispatch:
+
+permissions:
+  contents: write
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  release:
+    name: Build and Draft Release
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./src/spice2x
+    steps:
+      - uses: actions/checkout@v5
+        with:
+          ref: main
+          fetch-depth: 0
+      - name: Clean leftover build artifacts
+        run: |
+          rm -rf .ccache dist bin cmake-build-*
+      - name: Compile
+        run: ./build_docker.sh
+      - name: Determine release name from dist filename
+        run: |
+          dist=$(basename "$(ls dist/spice2x-*.zip | grep -v -- '-full.zip')")
+          # strip the ".zip" to get the base name, e.g. spice2x-26-06-28
+          name="${dist%.zip}"
+          # the tag is the date portion, e.g. 26-06-28
+          tag="${name#spice2x-}"
+          echo "RELEASE_NAME=$name" >> $GITHUB_ENV
+          echo "RELEASE_TAG=$tag" >> $GITHUB_ENV
+      - name: Create draft release
+        uses: softprops/action-gh-release@v3
+        with:
+          draft: true
+          prerelease: true
+          tag_name: ${{ env.RELEASE_TAG }}
+          name: ${{ env.RELEASE_NAME }}
+          target_commitish: main
+          generate_release_notes: true
+          files: |
+            src/spice2x/dist/spice2x-*.zip
@@ -256,6 +256,57 @@ add_subdirectory(external/imgui EXCLUDE_FROM_ALL)
 add_subdirectory(external/minhook EXCLUDE_FROM_ALL)
 add_subdirectory(external/cpu_features EXCLUDE_FROM_ALL)

+# libjpeg-turbo, prebuilt into the deps image. The WinXP toolchains have their own
+# sysroot and cannot see it, so those targets build without JPEG support.
+add_library(spice_jpeg INTERFACE)
+if(NOT SPICE_XP)
+    # search static archives only: the mingw package also ships an import library,
+    # and linking that one would pull in a libjpeg DLL at runtime
+    set(SPICE_JPEG_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})
+    set(CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_STATIC_LIBRARY_SUFFIX})
+    find_package(JPEG)
+    set(CMAKE_FIND_LIBRARY_SUFFIXES ${SPICE_JPEG_SUFFIXES})
+
+    if(JPEG_FOUND)
+        target_link_libraries(spice_jpeg INTERFACE JPEG::JPEG)
+        target_compile_definitions(spice_jpeg INTERFACE SPICE_JPEG=1)
+    else()
+        message(WARNING
+                "libjpeg-turbo not found: screen capture over the API is disabled")
+    endif()
+endif()
+
+# x264 for the API H.264 video stream, installed into the mingw sysroots by the
+# deps image. The WinXP toolchains deliberately go without it and serve MJPEG only.
+add_library(spice_x264 INTERFACE)
+if(NOT SPICE_XP)
+    # search static archives only: the mingw package also ships an import library,
+    # and linking that one would pull in a libx264 DLL at runtime
+    set(SPICE_X264_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})
+    set(CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_STATIC_LIBRARY_SUFFIX})
+    find_library(X264_LIBRARY NAMES x264 libx264)
+    set(CMAKE_FIND_LIBRARY_SUFFIXES ${SPICE_X264_SUFFIXES})
+
+    find_path(X264_INCLUDE_DIR NAMES x264.h)
+    if(X264_LIBRARY AND X264_INCLUDE_DIR)
+        target_include_directories(spice_x264 INTERFACE "${X264_INCLUDE_DIR}")
+        target_link_libraries(spice_x264 INTERFACE "${X264_LIBRARY}")
+        target_compile_definitions(spice_x264 INTERFACE SPICE_H264=1)
+    else()
+        message(WARNING
+                "x264 not found: the api video stream will only offer MJPEG")
+    endif()
+endif()
+
+# fpng's SIMD needs the whole unit built for SSE4.1, which its runtime CPU check
+# cannot undo, so keep it scalar rather than raising the CPU baseline
+set_source_files_properties(external/fpng/fpng.cpp PROPERTIES
+        COMPILE_DEFINITIONS "FPNG_NO_SSE=1")
+if(NOT MSVC)
+    set_source_files_properties(external/fpng/fpng.cpp PROPERTIES
+            COMPILE_OPTIONS "-fno-strict-aliasing")
+endif()
+
 # set link time optimizations (disabled for Debug builds for speed, disabled
 # for RelWithDebInfo builds due to "lto1: error: two or more sections for"
 # errors)
@@ -317,6 +368,10 @@ set(SOURCE_FILES ${SOURCE_FILES}
        # api
        api/controller.cpp
        api/websocket.cpp
+        api/capture_pump.cpp
+        api/h264_stream.cpp
+        api/stream_format.cpp
+        api/stream_server.cpp
        api/request.cpp
        api/response.cpp
        api/module.cpp
@@ -332,6 +387,7 @@ set(SOURCE_FILES ${SOURCE_FILES}
        api/modules/control.cpp
        api/modules/touch.cpp
        api/modules/iidx.cpp
+        api/modules/sdvx.cpp
        api/serial.cpp
        api/modules/drs.cpp
        api/modules/lcd.cpp
@@ -379,7 +435,7 @@ set(SOURCE_FILES ${SOURCE_FILES}
        external/tinyxml2/tinyxml2.cpp
        external/http-parser/http_parser.c
        external/usbhidusage/usb-hid-usage.c
-        external/toojpeg/toojpeg.cpp
+        external/fpng/fpng.cpp
        external/scard/scard.cpp

        # games
@@ -411,6 +467,7 @@ set(SOURCE_FILES ${SOURCE_FILES}
        games/sdvx/sdvx_live2d.cpp
        games/sdvx/io.cpp
        games/sdvx/camera.cpp
+        games/jb/bi2x_hook.cpp
        games/jb/jb.cpp
        games/jb/jb_touch.cpp
        games/jb/io.cpp
@@ -530,11 +587,15 @@ set(SOURCE_FILES ${SOURCE_FILES}
        hooks/devicehook.cpp
        hooks/graphics/graphics.cpp
        hooks/graphics/graphics_windowed.cpp
+        hooks/graphics/jpeg_encoder.cpp
        hooks/graphics/nvapi_impl.cpp
        hooks/graphics/nvapi_hook.cpp
        hooks/graphics/nvenc_hook.cpp
        hooks/graphics/backends/d3d9/d3d9_backend.cpp
+        hooks/graphics/backends/d3d9/d3d9_readback.cpp
+        hooks/graphics/backends/d3d9/d3d9_screenshot.cpp
        hooks/graphics/backends/d3d9/d3d9_device.cpp
+        hooks/graphics/backends/d3d9/d3d9_gfdm.cpp
        hooks/graphics/backends/d3d9/d3d9_live2d.cpp
        hooks/graphics/backends/d3d9/d3d9_fake_swapchain.cpp
        hooks/graphics/backends/d3d9/d3d9_swapchain.cpp
@@ -574,6 +635,7 @@ set(SOURCE_FILES ${SOURCE_FILES}
        misc/device.cpp
        misc/eamuse.cpp
        misc/extdev.cpp
+        misc/hotkeys.cpp
        misc/sciunit.cpp
        misc/sde.cpp
        misc/wintouchemu.cpp
@@ -735,7 +797,7 @@ endfunction()
 add_library(spicetools_spice_objs OBJECT ${SOURCE_FILES})
 target_link_libraries(spicetools_spice_objs
        PUBLIC d3d9 ws2_32 version comctl32 shlwapi iphlpapi hid secur32 setupapi psapi winmm winhttp
-        PRIVATE fmt::fmt-header-only discord-rpc imgui hash-library minhook imm32 dwmapi CpuFeatures::cpu_features)
+        PRIVATE fmt::fmt-header-only discord-rpc imgui hash-library minhook imm32 dwmapi CpuFeatures::cpu_features spice_jpeg spice_x264)
 target_link_libraries(spicetools_spice_objs PUBLIC winscard)

 if(NOT MSVC)
@@ -775,7 +837,7 @@ set(RESOURCE_FILES build/manifest.manifest build/manifest.rc build/icon.rc cfg/W
 add_executable(spicetools_spice_linux ${SOURCE_FILES} ${RESOURCE_FILES})
 target_link_libraries(spicetools_spice_linux
        PUBLIC d3d9 ws2_32 version comctl32 shlwapi iphlpapi hid secur32 setupapi psapi winmm winhttp
-        PRIVATE fmt::fmt-header-only discord-rpc imgui hash-library minhook imm32 dwmapi CpuFeatures::cpu_features)
+        PRIVATE fmt::fmt-header-only discord-rpc imgui hash-library minhook imm32 dwmapi CpuFeatures::cpu_features spice_jpeg spice_x264)
 set_target_properties(spicetools_spice_linux PROPERTIES PREFIX "")
 set_target_properties(spicetools_spice_linux PROPERTIES OUTPUT_NAME "spice_linux")
 target_compile_definitions(spicetools_spice_linux PRIVATE NO_SCARD=1 PRIVATE SPICE_LINUX=1)
@@ -793,7 +855,7 @@ add_executable(spicetools_spice64 ${SOURCE_FILES} ${RESOURCE_FILES})
 # do NOT link against: mf, mfplat, mfreadwrite; otherwise unity games will break
 target_link_libraries(spicetools_spice64
        PUBLIC d3d9 ws2_32 version comctl32 shlwapi iphlpapi hid secur32 setupapi psapi winmm winhttp mfuuid strmiids dxva2
-        PRIVATE fmt::fmt-header-only discord-rpc imgui hash-library minhook imm32 dwmapi CpuFeatures::cpu_features)
+        PRIVATE fmt::fmt-header-only discord-rpc imgui hash-library minhook imm32 dwmapi CpuFeatures::cpu_features spice_jpeg spice_x264)
 target_link_libraries(spicetools_spice64 PUBLIC winscard)
 set_target_properties(spicetools_spice64 PROPERTIES PREFIX "")
 set_target_properties(spicetools_spice64 PROPERTIES OUTPUT_NAME "spice64")
@@ -816,7 +878,7 @@ add_executable(spicetools_spice64_linux ${SOURCE_FILES} ${RESOURCE_FILES})
 # do NOT link against: mf, mfplat, mfreadwrite; otherwise unity games will break
 target_link_libraries(spicetools_spice64_linux
        PUBLIC d3d9 ws2_32 version comctl32 shlwapi iphlpapi hid secur32 setupapi psapi winmm winhttp mfuuid strmiids dxva2
-        PRIVATE fmt::fmt-header-only discord-rpc imgui hash-library minhook imm32 dwmapi CpuFeatures::cpu_features)
+        PRIVATE fmt::fmt-header-only discord-rpc imgui hash-library minhook imm32 dwmapi CpuFeatures::cpu_features spice_jpeg spice_x264)
 set_target_properties(spicetools_spice64_linux PROPERTIES PREFIX "")
 set_target_properties(spicetools_spice64_linux PROPERTIES OUTPUT_NAME "spice64_linux")
 target_compile_definitions(spicetools_spice64_linux PRIVATE SPICE64=1)
@@ -835,6 +897,7 @@ endif()
 set(SOURCE_FILES ${SOURCE_FILES} launcher/options.h launcher/options.cpp)
 set(RESOURCE_FILES cfg/manifest.manifest cfg/manifest.rc cfg/icon.rc cfg/Win32D.rc)
 add_executable(spicetools_cfg WIN32 ${SOURCE_FILES} ${RESOURCE_FILES})
+# the configurator serves neither the API nor the video stream, so it needs no codecs
 target_link_libraries(spicetools_cfg
        PUBLIC d3d9 ws2_32 version comctl32 shlwapi iphlpapi hid secur32 setupapi psapi winmm winhttp strmiids
        PRIVATE fmt::fmt-header-only discord-rpc imgui hash-library minhook imm32 dwmapi CpuFeatures::cpu_features)
@@ -267,6 +267,20 @@ which also means that your hex edits are applicable directly.
    - `Side Panel Right Inner`
    - `Side Panel Right`

+#### SDVX
+- tapeled_get(name: str, ...)
+  - returns a list containing a dict of the current tape LED states. The dict keys are:
+    - `Title`
+    - `Upper Left Speaker`
+    - `Upper Right Speaker`
+    - `Left Wing`
+    - `Right Wing`
+    - `Control Panel`
+    - `Lower Left Speaker`
+    - `Lower Right Speaker`
+    - `Woofer`
+    - `V Unit`
+
 #### LCD
 - info()
  - returns information about the serial LCD controller some games use
@@ -277,6 +291,42 @@ which also means that your hex edits are applicable directly.
 - image_resize_set_scene(scene: int)
  - sets the active scene for image resize state; set to 0 to disable resize

+## Video Stream
+
+Separate from the JSON API, spice can serve the mirrored screen as a video
+stream over plain HTTP. Enable it with `-apistream`. It listens on the API port
+plus two, in the same way the WebSocket server uses the API port plus one, so
+`-api 1337` puts the stream on 1339. This means `-api` has to be enabled too.
+
+Two formats are served:
+
+    http://host:1339/stream.mjpg    JPEG frames, multipart/x-mixed-replace
+    http://host:1339/stream.h264    H.264 annex-b, no container
+
+All accept the same optional query parameters:
+
+- `screen` - which screen to mirror, 0-3. Defaults to the subscreen when the
+  game has one, otherwise the main screen.
+- `fps` - frames per second, 1-60. Default 30.
+- `q` - quality, 1-100. Default 70. This is the JPEG quality for `stream.mjpg`
+  and is mapped onto the H.264 rate factor for `stream.h264`, so the same number
+  does not mean the same thing for both.
+
+For example:
+
+    http://host:1339/stream.h264?screen=1&fps=30&q=70
+
+See the wiki for format tradeoffs, latency tuning, testing commands and client
+notes.
+
+The stream is view only. Touch and other input still go through the JSON API,
+so a companion app needs both. There is no authentication on the stream port -
+anyone who can reach it can watch the screen.
+
+WinXP builds have no video stream. Neither encoder is compiled in, so every
+endpoint returns 404, and the JSON API's JPEG screen capture is unavailable for
+the same reason.
+
 ## Native wrapper libraries
 Spicetools provides wrapper libraries in: Arduino, C++, Dart, and Python.
 Python is the only one that is fully spec compliant.
@@ -239,7 +239,7 @@ bool ICCADevice::parse_msg(MessageData *msg_in,
            // SDVX Old cabinet mode
            if (avs::game::is_model("KFC") && avs::game::SPEC[0] != 'G' && avs::game::SPEC[0] != 'H')
                answer_type = 1;
-            if (avs::game::is_model("L44"))
+            if (avs::game::is_model({ "L44", "T44" }))
                answer_type = 2;

            // check answer type
@@ -0,0 +1,58 @@
+#include "capture_pump.h"
+
+#include <array>
+#include <mutex>
+
+#include "hooks/graphics/graphics.h"
+
+namespace api::capture_pump {
+
+    namespace {
+
+        std::array<std::mutex, GRAPHICS_CAPTURE_SCREEN_NO> CONSUMER_M;
+
+        std::mutex CLAIMED_M;
+        std::array<bool, GRAPHICS_CAPTURE_SCREEN_NO> CLAIMED {};
+
+        bool valid_screen(int screen) {
+            return 0 <= screen && screen < static_cast<int>(GRAPHICS_CAPTURE_SCREEN_NO);
+        }
+    }
+
+    bool capture_direct(int screen, std::shared_ptr<uint8_t[]> &out, int divide,
+            uint64_t *timestamp, int *width, int *height) {
+
+        if (!valid_screen(screen)) {
+            return false;
+        }
+
+        std::lock_guard<std::mutex> lock(CONSUMER_M[screen]);
+        graphics_capture_trigger(screen);
+        return graphics_capture_receive_raw(
+                screen, out, divide, timestamp, width, height);
+    }
+
+    bool claim_screen(int screen) {
+        if (!valid_screen(screen)) {
+            return false;
+        }
+
+        std::lock_guard<std::mutex> lock(CLAIMED_M);
+
+        if (CLAIMED[screen]) {
+            return false;
+        }
+
+        CLAIMED[screen] = true;
+        return true;
+    }
+
+    void release_screen(int screen) {
+        if (!valid_screen(screen)) {
+            return;
+        }
+
+        std::lock_guard<std::mutex> lock(CLAIMED_M);
+        CLAIMED[screen] = false;
+    }
+}
@@ -0,0 +1,24 @@
+#pragma once
+
+#include <cstdint>
+#include <memory>
+
+namespace api::capture_pump {
+
+    struct Frame {
+        // packed 24bpp RGB, width * height * 3 bytes
+        std::shared_ptr<uint8_t[]> pixels;
+        uint64_t timestamp = 0;
+        int width = 0;
+        int height = 0;
+    };
+
+    // the graphics layer has one capture slot per screen, so concurrent waiters would steal
+    // each other's frames; everything that captures goes through here to keep it serialized
+    bool capture_direct(int screen, std::shared_ptr<uint8_t[]> &out, int divide,
+            uint64_t *timestamp = nullptr, int *width = nullptr, int *height = nullptr);
+
+    // a screen carries one stream at a time; false when another connection already holds it
+    bool claim_screen(int screen);
+    void release_screen(int screen);
+}
@@ -0,0 +1,13 @@
+#pragma once
+
+#include <atomic>
+#include <cstdint>
+
+namespace api {
+
+    extern std::atomic_uint32_t CLIENT_COUNT;
+
+    inline bool has_clients() {
+        return CLIENT_COUNT.load(std::memory_order_relaxed) > 0;
+    }
+}
@@ -5,6 +5,7 @@

 #include <utility>

+#include "client.h"
 #include "cfg/configurator.h"
 #include "external/rapidjson/document.h"
 #include "util/crypt.h"
@@ -28,6 +29,7 @@
 #include "modules/lcd.h"
 #include "modules/lights.h"
 #include "modules/memory.h"
+#include "modules/sdvx.h"
 #include "modules/touch.h"
 #include "modules/resize.h"
 #include "request.h"
@@ -36,6 +38,8 @@
 using namespace rapidjson;
 using namespace api;

+std::atomic_uint32_t api::CLIENT_COUNT = 0;
+
 Controller::Controller(unsigned short port, std::string password, bool pretty)
    : port(port), password(std::move(password)), pretty(pretty)
 {
@@ -411,8 +415,11 @@ void Controller::init_state(api::ClientState *state) {
    state->modules.push_back(new modules::LCD());
    state->modules.push_back(new modules::Lights());
    state->modules.push_back(new modules::Memory());
+    state->modules.push_back(new modules::SDVX());
    state->modules.push_back(new modules::Touch());
    state->modules.push_back(new modules::Resize());
+
+    CLIENT_COUNT.fetch_add(1, std::memory_order_relaxed);
 }

 void Controller::free_state(api::ClientState *state) {
@@ -424,6 +431,8 @@ void Controller::free_state(api::ClientState *state) {

    // free cipher
    delete state->cipher;
+
+    CLIENT_COUNT.fetch_sub(1, std::memory_order_relaxed);
 }

 void Controller::free_socket() {
@@ -0,0 +1,224 @@
+#include "h264_stream.h"
+
+#ifdef SPICE_H264
+
+#include <vector>
+
+#include <x264.h>
+
+#include "util/logging.h"
+
+namespace api {
+
+    namespace {
+
+        // BT.601 limited range, the range every decoder assumes for H.264 without
+        // explicit colour metadata
+        inline uint8_t rgb_to_y(int r, int g, int b) {
+            return static_cast<uint8_t>(((66 * r + 129 * g + 25 * b + 128) >> 8) + 16);
+        }
+
+        inline uint8_t rgb_to_u(int r, int g, int b) {
+            return static_cast<uint8_t>(((-38 * r - 74 * g + 112 * b + 128) >> 8) + 128);
+        }
+
+        inline uint8_t rgb_to_v(int r, int g, int b) {
+            return static_cast<uint8_t>(((112 * r - 94 * g - 18 * b + 128) >> 8) + 128);
+        }
+
+        // a bare annex-b elementary stream, one encoder per connection so every client
+        // starts on its own keyframe. no container, so nothing here keeps a media clock
+        class H264Writer : public StreamWriter {
+        public:
+
+            H264Writer(int quality, int fps) : quality(quality), fps(fps) {}
+
+            ~H264Writer() override {
+                this->close();
+            }
+
+            std::string content_type() const override {
+                return "video/h264";
+            }
+
+            bool write(const StreamSend &send, const capture_pump::Frame &frame) override {
+
+                // I420 needs even dimensions
+                const int width = frame.width & ~1;
+                const int height = frame.height & ~1;
+                if (width <= 0 || height <= 0) {
+                    return true;
+                }
+
+                if (this->encoder == nullptr) {
+                    if (!this->open(width, height)) {
+                        return false;
+                    }
+                } else if (width != this->width || height != this->height) {
+                    // the encoder is fixed at the size it opened with; let the client reconnect
+                    log_info("api::stream", "capture size changed, ending H.264 client");
+                    return false;
+                }
+
+                this->convert(frame.pixels.get(), frame.width);
+
+                this->picture.i_pts = this->frame_index;
+
+                x264_nal_t *nals = nullptr;
+                int nal_count = 0;
+                x264_picture_t picture_out;
+                const int size = x264_encoder_encode(
+                        this->encoder, &nals, &nal_count, &this->picture, &picture_out);
+
+                if (size < 0) {
+                    log_warning("api::stream", "H.264 encode failed");
+                    return false;
+                }
+
+                this->frame_index++;
+
+                if (size == 0) {
+                    return true;
+                }
+
+                // x264 lays every NAL of the frame out back to back. an SEI or delimiter
+                // carries no picture, so only the parameter sets and the slice go through
+                this->annexb.clear();
+                for (int i = 0; i < nal_count; i++) {
+                    switch (nals[i].i_type) {
+                        case NAL_SEI:
+                        case NAL_AUD:
+                        case NAL_FILLER:
+                            continue;
+                        default:
+                            break;
+                    }
+                    this->annexb.insert(this->annexb.end(),
+                            nals[i].p_payload, nals[i].p_payload + nals[i].i_payload);
+                }
+
+                if (this->annexb.empty()) {
+                    return true;
+                }
+
+                return send(this->annexb.data(), this->annexb.size());
+            }
+
+        private:
+
+            bool open(int width, int height) {
+
+                x264_param_t param;
+                if (x264_param_default_preset(&param, "ultrafast", "zerolatency") < 0) {
+                    return false;
+                }
+
+                param.i_csp = X264_CSP_I420;
+                param.i_width = width;
+                param.i_height = height;
+                param.i_fps_num = this->fps;
+                param.i_fps_den = 1;
+                param.i_threads = 1;
+                param.b_annexb = 1;
+                // SPS/PPS ahead of every IDR, so a client can start decoding cold
+                param.b_repeat_headers = 1;
+                // a keyframe every two seconds bounds how long a new client waits
+                param.i_keyint_max = this->fps * 2;
+                param.i_log_level = X264_LOG_NONE;
+                param.rc.i_rc_method = X264_RC_CRF;
+                param.rc.f_rf_constant = 40.0f - (this->quality * 0.25f);
+
+                // baseline keeps hardware decode available on the widest range of phones
+                if (x264_param_apply_profile(&param, "baseline") < 0) {
+                    return false;
+                }
+
+                this->encoder = x264_encoder_open(&param);
+                if (this->encoder == nullptr) {
+                    log_warning("api::stream", "could not open the H.264 encoder");
+                    return false;
+                }
+
+                if (x264_picture_alloc(&this->picture, X264_CSP_I420, width, height) < 0) {
+                    this->close();
+                    return false;
+                }
+                this->picture_ready = true;
+
+                this->width = width;
+                this->height = height;
+                return true;
+            }
+
+            void close() {
+                if (this->picture_ready) {
+                    x264_picture_clean(&this->picture);
+                    this->picture_ready = false;
+                }
+                if (this->encoder != nullptr) {
+                    x264_encoder_close(this->encoder);
+                    this->encoder = nullptr;
+                }
+            }
+
+            // packed 24bpp RGB to I420, averaging each 2x2 block for the chroma planes
+            void convert(const uint8_t *rgb, int source_width) {
+
+                uint8_t *plane_y = this->picture.img.plane[0];
+                uint8_t *plane_u = this->picture.img.plane[1];
+                uint8_t *plane_v = this->picture.img.plane[2];
+                const int stride_y = this->picture.img.i_stride[0];
+                const int stride_u = this->picture.img.i_stride[1];
+                const int stride_v = this->picture.img.i_stride[2];
+
+                for (int y = 0; y < this->height; y++) {
+                    const uint8_t *row = rgb + static_cast<size_t>(y) * source_width * 3;
+                    uint8_t *out_y = plane_y + static_cast<size_t>(y) * stride_y;
+
+                    for (int x = 0; x < this->width; x++) {
+                        const uint8_t *pixel = row + x * 3;
+                        out_y[x] = rgb_to_y(pixel[0], pixel[1], pixel[2]);
+                    }
+                }
+
+                for (int y = 0; y < this->height / 2; y++) {
+                    const uint8_t *row0 = rgb + static_cast<size_t>(y * 2) * source_width * 3;
+                    const uint8_t *row1 = row0 + static_cast<size_t>(source_width) * 3;
+                    uint8_t *out_u = plane_u + static_cast<size_t>(y) * stride_u;
+                    uint8_t *out_v = plane_v + static_cast<size_t>(y) * stride_v;
+
+                    for (int x = 0; x < this->width / 2; x++) {
+                        const uint8_t *p00 = row0 + (x * 2) * 3;
+                        const uint8_t *p01 = p00 + 3;
+                        const uint8_t *p10 = row1 + (x * 2) * 3;
+                        const uint8_t *p11 = p10 + 3;
+
+                        const int r = (p00[0] + p01[0] + p10[0] + p11[0] + 2) / 4;
+                        const int g = (p00[1] + p01[1] + p10[1] + p11[1] + 2) / 4;
+                        const int b = (p00[2] + p01[2] + p10[2] + p11[2] + 2) / 4;
+
+                        out_u[x] = rgb_to_u(r, g, b);
+                        out_v[x] = rgb_to_v(r, g, b);
+                    }
+                }
+            }
+
+            int quality;
+            int fps;
+            int width = 0;
+            int height = 0;
+            int64_t frame_index = 0;
+            std::vector<uint8_t> annexb;
+
+            x264_t *encoder = nullptr;
+            x264_picture_t picture {};
+            bool picture_ready = false;
+        };
+    }
+
+    std::unique_ptr<StreamWriter> make_h264_writer(int quality, int fps) {
+        return std::make_unique<H264Writer>(quality, fps);
+    }
+}
+
+#endif // SPICE_H264
@@ -0,0 +1,11 @@
+#pragma once
+
+#include <memory>
+
+#include "stream_format.h"
+
+namespace api {
+
+    // bare annex-b H.264; null when the build has no encoder
+    std::unique_ptr<StreamWriter> make_h264_writer(int quality, int fps);
+}
@@ -2,8 +2,10 @@
 #include <functional>
 #include <mutex>
 #include <unordered_map>
+#include "api/capture_pump.h"
 #include "external/rapidjson/document.h"
 #include "hooks/graphics/graphics.h"
+#include "hooks/graphics/jpeg_encoder.h"
 #include "util/crypt.h"

 using namespace std::placeholders;
@@ -93,8 +95,6 @@ namespace api::modules {
     * reduce: uint for dividing image size
     */
    void Capture::get_jpg(Request &req, Response &res) {
-        CAPTURE_BUFFER.clear();
-        CAPTURE_BUFFER.reserve(1024 * 128);

        // settings
        int screen = 0;
@@ -120,10 +120,16 @@ namespace api::modules {
        uint64_t timestamp = 0;
        int width = 0;
        int height = 0;
-        graphics_capture_trigger(screen);
-        bool success = graphics_capture_receive_jpeg(screen, [] (uint8_t byte) {
-            CAPTURE_BUFFER.push_back(byte);
-        }, true, quality, true, divide, &timestamp, &width, &height);
+
+        std::shared_ptr<uint8_t[]> pixels;
+        bool success = capture_pump::capture_direct(
+                screen, pixels, divide, &timestamp, &width, &height);
+
+        if (success) {
+            CAPTURE_BUFFER.clear();
+            success = jpeg_encoder::encode(
+                    CAPTURE_BUFFER, pixels.get(), width, height, quality);
+        }

        if (success) {
            add_jpeg_response(screen, timestamp, width, height, CAPTURE_BUFFER, res);
@@ -1,54 +1,54 @@
-#include "ddr.h"
-#include <functional>
-#include "external/rapidjson/document.h"
-#include "games/ddr/ddr.h"
-
-using namespace std::placeholders;
-using namespace rapidjson;
-
-namespace api::modules {
-
-    DDR::DDR() : Module("ddr") {
-        functions["tapeled_get"] = std::bind(&DDR::tapeled_get, this, _1, _2);
-    }
-
-    /**
-     * Allows fetching of the RGB LED strips that are gold cabinets, via SpiceAPI
-     */
-    void DDR::tapeled_get(Request &req, Response &res) {
-        static const char* device_names[11] = {
-            "p1_foot_up",
-            "p1_foot_right",
-            "p1_foot_left",
-            "p1_foot_down",
-            "p2_foot_up",
-            "p2_foot_right",
-            "p2_foot_left",
-            "p2_foot_down",
-            "top_panel",
-            "monitor_left",
-            "monitor_right"
-        };
-
-        Value response_object(kObjectType);
-
-        // Iterate through each device and dump its lights data into the response
-        for (size_t device = 0; device < 11; device++) {
-            size_t num_leds = 25;
-            if (device > 7)
-                num_leds = 50;
-
-            Value light_state(kArrayType);
-            light_state.Reserve(num_leds * 3, res.doc()->GetAllocator());
-            for (size_t led = 0; led < num_leds; led++) {
-                light_state.PushBack(games::ddr::DDR_TAPELEDS[device][led][0], res.doc()->GetAllocator());
-                light_state.PushBack(games::ddr::DDR_TAPELEDS[device][led][1], res.doc()->GetAllocator());
-                light_state.PushBack(games::ddr::DDR_TAPELEDS[device][led][2], res.doc()->GetAllocator());
-            }
-
-            response_object.AddMember(StringRef(device_names[device]), light_state, res.doc()->GetAllocator());
-        }
-
-        res.add_data(response_object);
-    }
-}
+#include "ddr.h"
+#include <functional>
+#include "external/rapidjson/document.h"
+#include "games/ddr/ddr.h"
+
+using namespace std::placeholders;
+using namespace rapidjson;
+
+namespace api::modules {
+
+    DDR::DDR() : Module("ddr") {
+        functions["tapeled_get"] = std::bind(&DDR::tapeled_get, this, _1, _2);
+    }
+
+    /**
+     * Allows fetching of the RGB LED strips that are gold cabinets, via SpiceAPI
+     */
+    void DDR::tapeled_get(Request &req, Response &res) {
+        static const char* device_names[11] = {
+            "p1_foot_up",
+            "p1_foot_right",
+            "p1_foot_left",
+            "p1_foot_down",
+            "p2_foot_up",
+            "p2_foot_right",
+            "p2_foot_left",
+            "p2_foot_down",
+            "top_panel",
+            "monitor_left",
+            "monitor_right"
+        };
+
+        Value response_object(kObjectType);
+
+        // Iterate through each device and dump its lights data into the response
+        for (size_t device = 0; device < 11; device++) {
+            size_t num_leds = 25;
+            if (device > 7)
+                num_leds = 50;
+
+            Value light_state(kArrayType);
+            light_state.Reserve(num_leds * 3, res.doc()->GetAllocator());
+            for (size_t led = 0; led < num_leds; led++) {
+                light_state.PushBack(games::ddr::DDR_TAPELEDS[device][led][0], res.doc()->GetAllocator());
+                light_state.PushBack(games::ddr::DDR_TAPELEDS[device][led][1], res.doc()->GetAllocator());
+                light_state.PushBack(games::ddr::DDR_TAPELEDS[device][led][2], res.doc()->GetAllocator());
+            }
+
+            response_object.AddMember(StringRef(device_names[device]), light_state, res.doc()->GetAllocator());
+        }
+
+        res.add_data(response_object);
+    }
+}
@@ -1,17 +1,17 @@
-#pragma once
-
-#include <vector>
-#include "api/module.h"
-#include "api/request.h"
-
-namespace api::modules {
-
-    class DDR : public Module {
-    public:
-        DDR();
-
-    private:
-        // function definitions
-        void tapeled_get(Request &req, Response &res);
-    };
-}
+#pragma once
+
+#include <vector>
+#include "api/module.h"
+#include "api/request.h"
+
+namespace api::modules {
+
+    class DDR : public Module {
+    public:
+        DDR();
+
+    private:
+        // function definitions
+        void tapeled_get(Request &req, Response &res);
+    };
+}
@@ -106,14 +106,16 @@ namespace api::modules {
    void IIDX::copy_tapeled_data(Response &res, Value &response_object, const tapeledutils::tape_led &mapping) {
        // Create an array for the light state
        Value light_state(kArrayType);
-        light_state.Reserve(mapping.data.capacity() * 3, res.doc()->GetAllocator());
+        light_state.Reserve(
+            static_cast<SizeType>(mapping.data.size() * 3),
+            res.doc()->GetAllocator());
        for (const auto [r, g, b] : mapping.data) {
            light_state.PushBack(r, res.doc()->GetAllocator());
            light_state.PushBack(g, res.doc()->GetAllocator());
            light_state.PushBack(b, res.doc()->GetAllocator());
        }

-        // Can't use StringRef here, turns some strings partially into null bytes for some reason
+        // can't use StringRef here, turns some strings partially into null bytes for some reason
        Value light_name(mapping.lightName.c_str(), res.doc()->GetAllocator());
        response_object.AddMember(light_name, light_state, res.doc()->GetAllocator());
    }
@@ -1,13 +1,14 @@
 #include "keypads.h"

+#include <chrono>
 #include <functional>
+#include <thread>

 #include <windows.h>

 #include "avs/game.h"
 #include "external/rapidjson/document.h"
 #include "misc/eamuse.h"
-#include "util/precise_timer.h"

 using namespace std::placeholders;
 using namespace rapidjson;
@@ -59,7 +60,6 @@ namespace api::modules {
        // get params
        auto keypad = req.params[0].GetUint();
        auto input = std::string(req.params[1].GetString());
-        timeutils::PreciseSleepTimer timer;

        // process all chars
        for (auto c : input) {
@@ -93,11 +93,11 @@ namespace api::modules {

            // set
            eamuse_set_keypad_overrides(keypad, state);
-            timer.sleep(sleep_time);
+            std::this_thread::sleep_for(std::chrono::milliseconds(sleep_time));

            // unset
            eamuse_set_keypad_overrides(keypad, 0);
-            timer.sleep(sleep_time);
+            std::this_thread::sleep_for(std::chrono::milliseconds(sleep_time));
        }
    }

@@ -0,0 +1,67 @@
+#include "sdvx.h"
+
+#include <functional>
+
+using namespace std::placeholders;
+using namespace rapidjson;
+
+namespace api::modules {
+
+    SDVX::SDVX() : Module("sdvx") {
+        functions["tapeled_get"] = std::bind(&SDVX::tapeled_get, this, _1, _2);
+
+        for (auto &light : games::sdvx::TAPELED_MAPPING) {
+            lights_by_names.emplace(light.lightName, light);
+        }
+    }
+
+    /**
+     * tapeled_get()
+     * tapeled_get(name: str, ...)
+     */
+    void SDVX::tapeled_get(Request &req, Response &res) {
+        Value response_object(kObjectType);
+
+        // all tape leds
+        if (req.params.Size() == 0) {
+            // iterate through each device and dump its lights data into the response
+            for (const auto &mapping : games::sdvx::TAPELED_MAPPING) {
+                copy_tapeled_data(res, response_object, mapping);
+            }
+        } else {
+            // specified light names
+            for (Value &param : req.params.GetArray()) {
+                // check params
+                if (!param.IsString()) {
+                    error_type(res, "name", "string");
+                    return;
+                }
+
+                const auto name = param.GetString();
+                if (const auto &it = lights_by_names.find(name); it != lights_by_names.end()) {
+                    copy_tapeled_data(res, response_object, it->second.get());
+                }
+            }
+        }
+
+        res.add_data(response_object);
+    }
+
+    void SDVX::copy_tapeled_data(Response &res, Value &response_object,
+            const tapeledutils::tape_led &mapping)
+    {
+        Value light_state(kArrayType);
+        light_state.Reserve(
+            static_cast<SizeType>(mapping.data.size() * 3),
+            res.doc()->GetAllocator());
+        for (const auto [r, g, b] : mapping.data) {
+            light_state.PushBack(r, res.doc()->GetAllocator());
+            light_state.PushBack(g, res.doc()->GetAllocator());
+            light_state.PushBack(b, res.doc()->GetAllocator());
+        }
+
+        // can't use StringRef here, turns some strings partially into null bytes for some reason
+        Value light_name(mapping.lightName.c_str(), res.doc()->GetAllocator());
+        response_object.AddMember(light_name, light_state, res.doc()->GetAllocator());
+    }
+}
@@ -0,0 +1,24 @@
+#pragma once
+
+#include <functional>
+#include <string>
+
+#include "api/module.h"
+#include "api/request.h"
+#include "external/robin_hood.h"
+#include "games/sdvx/sdvx.h"
+
+namespace api::modules {
+
+    class SDVX : public Module {
+    public:
+        SDVX();
+
+    private:
+        robin_hood::unordered_map<std::string, std::reference_wrapper<tapeledutils::tape_led>> lights_by_names;
+
+        void tapeled_get(Request &req, Response &res);
+        void copy_tapeled_data(Response &res, rapidjson::Value &response_object,
+                const tapeledutils::tape_led &mapping);
+    };
+}
@@ -12,7 +12,9 @@
 #include "touch/touch.h"
 #include "touch/native/inject.h"
 #include "touch/native/nativetouchhook.h"
+#include "touch/native/transform.h"
 #include "util/utils.h"
+#include "games/gitadora/gitadora.h"
 #include "games/iidx/iidx.h"

 using namespace std::placeholders;
@@ -40,6 +42,35 @@ namespace api::modules {
        return nativetouch::inject::inject_synthetic_touch(position, true);
    }

+    // map API coordinates onto the touch space SDVX reads, which depends on how it is displayed
+    static void sdvx_touch_errata(
+            int &x, int &y, bool use_native, int canvas_w, int canvas_h) {
+
+        // windowed coordinates already match the sub screen window they land on
+        if (GRAPHICS_WINDOWED) {
+            return;
+        }
+
+        // landscape mode: native injection hands the game these coordinates
+        // unchanged, so apply the rotation the touchscreen gets, while wintouchemu instead
+        // rotates them later through the subscreen overlay
+        if (GRAPHICS_FS_ORIENTATION_SWAP) {
+            if (use_native) {
+                POINT position { x, y };
+                if (nativetouch::transform::sdvx_landscape_rotate(&position, canvas_w, canvas_h)) {
+                    x = position.x;
+                    y = position.y;
+                }
+            }
+            return;
+        }
+
+        // rotate into the portrait touch space
+        const int x_raw = x;
+        x = canvas_w - y;
+        y = x_raw;
+    }
+
    Touch::Touch() : Module("touch") {
        is_sdvx = avs::game::is_model("KFC");

@@ -55,9 +86,12 @@ namespace api::modules {
        native_canvas_w = 0;
        native_canvas_h = 0;
        if (is_sdvx) {
-            // exceed gear subscreen, portrait after the rotation applied in apply_touch_errata
-            native_canvas_w = 1080;
-            native_canvas_h = 1920;
+            // windowed API coordinates land on the sub screen window as-is; fullscreen
+            // coordinates are rotated into the game's touch space by apply_touch_errata
+            const bool landscape_coordinates =
+                GRAPHICS_WINDOWED || GRAPHICS_FS_ORIENTATION_SWAP;
+            native_canvas_w = landscape_coordinates ? 1920 : 1080;
+            native_canvas_h = landscape_coordinates ? 1080 : 1920;
        } else if (avs::game::is_model("LDJ")) {
            // TDJ subscreen; FHD models are upscaled to 1080p by apply_touch_errata
            native_canvas_w = is_tdj_fhd ? 1920 : 1280;
@@ -66,6 +100,10 @@ namespace api::modules {
            // pop'n music API touch surface
            native_canvas_w = 1280;
            native_canvas_h = 800;
+        } else if (games::gitadora::is_arena_model()) {
+            // GITADORA arena SMALL subscreen, either in its own window or in the overlay
+            native_canvas_w = games::gitadora::ARENA_SUBSCREEN_WIDTH;
+            native_canvas_h = games::gitadora::ARENA_SUBSCREEN_HEIGHT;
        }

        functions["read"] = std::bind(&Touch::read, this, _1, _2);
@@ -209,19 +247,14 @@ namespace api::modules {
    }

    void Touch::apply_touch_errata(int &x, int &y) {
-        int x_raw = x;
-        int y_raw = y;
-
        if (is_tdj_fhd) {
            // deal with TDJ FHD resolution mismatch (upgrade 720p to 1080p)
            // we don't know what screen is being shown on the companion and the API doesn't specify
            // the target of the touch events so just assume it's the sub screen
-            x = x_raw * 1920 / 1280;
-            y = y_raw * 1080 / 720;
+            x = x * 1920 / 1280;
+            y = y * 1080 / 720;
        } else if (is_sdvx) {
-            // for exceed gear, they are both 1080p screens, but need to apply transformation
-            x = 1080 - y_raw;
-            y = x_raw;
+            sdvx_touch_errata(x, y, use_native, native_canvas_w, native_canvas_h);
        }
    }
 }
@@ -7,6 +7,7 @@ from .coin import *
 from .control import *
 from .exceptions import *
 from .iidx import *
+from .sdvx import *
 from .info import *
 from .keypads import *
 from .lights import *
@@ -0,0 +1,12 @@
+from .connection import Connection
+from .request import Request
+
+
+def sdvx_tapeled_get(con: Connection, *light_names):
+    req = Request("sdvx", "tapeled_get")
+
+    for light_name in light_names:
+        req.add_param(light_name)
+
+    res = con.request(req)
+    return res.get_data()
@@ -1,11 +1,12 @@
 #include "controller.h"
 #include "serial.h"

+#include <chrono>
 #include <string>
+#include <thread>
 #include <utility>

 #include "util/logging.h"
-#include "util/precise_timer.h"
 #include "util/utils.h"


@@ -17,7 +18,6 @@ namespace api {
        controller->init_state(this->state);
        this->thread = new std::thread([this] () {
            log_warning("api::serial", "listening on {} (baud: {})", this->port, this->baud);
-            timeutils::PreciseSleepTimer timer;

            // read buffer
            uint8_t read_buffer[16*1024];
@@ -162,7 +162,7 @@ namespace api {

                // slow down on reconnect
                if (this->running) {
-                    timer.sleep(retry_time);
+                    std::this_thread::sleep_for(std::chrono::milliseconds(retry_time));
                }
            }
        });
@@ -0,0 +1,70 @@
+#include "stream_format.h"
+
+#include <vector>
+
+#include "h264_stream.h"
+#include "hooks/graphics/jpeg_encoder.h"
+
+namespace api {
+
+    namespace {
+
+#ifdef SPICE_JPEG
+        constexpr const char *MJPEG_BOUNDARY = "spice2xframe";
+
+        // multipart/x-mixed-replace: every frame is a standalone JPEG, no inter-frame state
+        class MjpegWriter : public StreamWriter {
+        public:
+
+            explicit MjpegWriter(int quality) : quality(quality) {}
+
+            std::string content_type() const override {
+                return std::string("multipart/x-mixed-replace; boundary=") + MJPEG_BOUNDARY;
+            }
+
+            bool write(const StreamSend &send, const capture_pump::Frame &frame) override {
+                this->jpeg.clear();
+                if (!jpeg_encoder::encode(
+                        this->jpeg, frame.pixels.get(),
+                        frame.width, frame.height, this->quality)) {
+                    // a frame the encoder rejects is not worth dropping the client over
+                    return true;
+                }
+
+                const std::string part =
+                        "--" + std::string(MJPEG_BOUNDARY) + "\r\n"
+                        "Content-Type: image/jpeg\r\n"
+                        "Content-Length: " + std::to_string(this->jpeg.size()) + "\r\n"
+                        "\r\n";
+
+                return send(part.data(), part.size())
+                        && send(this->jpeg.data(), this->jpeg.size())
+                        && send("\r\n", 2);
+            }
+
+        private:
+            int quality;
+            std::vector<uint8_t> jpeg;
+        };
+#endif
+    }
+
+    // both parameters go unused on toolchains that compile in neither format
+    std::unique_ptr<StreamWriter> make_stream_writer(
+            const std::string &path, [[maybe_unused]] int quality, [[maybe_unused]] int fps) {
+
+#ifdef SPICE_JPEG
+        if (path == "/stream.mjpg") {
+            return std::make_unique<MjpegWriter>(quality);
+        }
+#endif
+
+#ifdef SPICE_H264
+        if (path == "/stream.h264") {
+            return make_h264_writer(quality, fps);
+        }
+#endif
+
+        return nullptr;
+    }
+}
@@ -0,0 +1,38 @@
+#pragma once
+
+#include <cstddef>
+#include <functional>
+#include <memory>
+#include <string>
+
+#include "capture_pump.h"
+
+namespace api {
+
+    // writes bytes to the client; false once the connection is gone
+    using StreamSend = std::function<bool(const void *, size_t)>;
+
+    // one wire format, instantiated per connection so it can keep encoder state across frames
+    class StreamWriter {
+    public:
+        virtual ~StreamWriter() = default;
+
+        StreamWriter(const StreamWriter &) = delete;
+        StreamWriter &operator=(const StreamWriter &) = delete;
+
+        // value for the HTTP Content-Type response header
+        virtual std::string content_type() const = 0;
+
+        // for formats that open with an init segment; runs once before any frame
+        virtual bool begin(const StreamSend &send) { return true; }
+
+        virtual bool write(const StreamSend &send, const capture_pump::Frame &frame) = 0;
+
+    protected:
+        StreamWriter() = default;
+    };
+
+    // null when the path does not name a format this build supports
+    std::unique_ptr<StreamWriter> make_stream_writer(
+            const std::string &path, int quality, int fps);
+}
@@ -0,0 +1,476 @@
+#include <winsock2.h>
+#include <ws2tcpip.h>
+
+#include "stream_server.h"
+
+#include <algorithm>
+#include <cctype>
+#include <chrono>
+#include <limits>
+#include <map>
+#include <string>
+#include <thread>
+#include <vector>
+
+#include "capture_pump.h"
+#include "hooks/graphics/graphics.h"
+#include "stream_format.h"
+#include "util/logging.h"
+#include "util/utils.h"
+
+namespace api {
+
+    namespace {
+
+        struct HttpRequest {
+            std::string method;
+            std::string path;
+            std::map<std::string, std::string> query;
+        };
+
+        bool send_all(SOCKET socket, const void *data, size_t size) {
+            auto cursor = reinterpret_cast<const char *>(data);
+            size_t remaining = size;
+
+            while (remaining > 0) {
+                const int sent = send(socket, cursor, static_cast<int>(remaining), 0);
+                if (sent <= 0) {
+                    return false;
+                }
+                cursor += sent;
+                remaining -= static_cast<size_t>(sent);
+            }
+
+            return true;
+        }
+
+        bool send_all(SOCKET socket, const std::string &text) {
+            return send_all(socket, text.data(), text.size());
+        }
+
+        // a viewer leaving is normally noticed by a failing send, so a stream with no frame
+        // to push has to ask the socket instead
+        bool client_gone(SOCKET socket) {
+            fd_set read_set;
+            FD_ZERO(&read_set);
+            FD_SET(socket, &read_set);
+
+            // the socket is blocking with a receive timeout, so poll before touching it
+            timeval immediately {};
+            const int ready = select(0, &read_set, nullptr, nullptr, &immediately);
+            if (ready == 0) {
+                return false;
+            }
+            if (ready < 0) {
+                return true;
+            }
+
+            // consumed rather than peeked: a stray byte would otherwise sit in front of the
+            // FIN and keep hiding it for as long as the stream runs
+            char discard[256];
+            return recv(socket, discard, sizeof(discard), 0) <= 0;
+        }
+
+        std::string url_decode(const std::string &input) {
+            std::string out;
+            out.reserve(input.size());
+
+            for (size_t i = 0; i < input.size(); i++) {
+                if (input[i] == '+') {
+                    out.push_back(' ');
+                } else if (input[i] == '%' && i + 2 < input.size()
+                        && isxdigit(static_cast<unsigned char>(input[i + 1]))
+                        && isxdigit(static_cast<unsigned char>(input[i + 2]))) {
+                    out.push_back(static_cast<char>(
+                            std::stoi(input.substr(i + 1, 2), nullptr, 16)));
+                    i += 2;
+                } else {
+                    out.push_back(input[i]);
+                }
+            }
+
+            return out;
+        }
+
+        void parse_query(const std::string &query, HttpRequest &request) {
+            size_t pos = 0;
+
+            while (pos < query.size()) {
+                auto end = query.find('&', pos);
+                if (end == std::string::npos) {
+                    end = query.size();
+                }
+
+                const auto pair = query.substr(pos, end - pos);
+                const auto split = pair.find('=');
+                if (split != std::string::npos && split > 0) {
+                    request.query[url_decode(pair.substr(0, split))] =
+                            url_decode(pair.substr(split + 1));
+                }
+
+                pos = end + 1;
+            }
+        }
+
+        // reads the request head only; anything oversized or malformed is refused
+        bool read_request(SOCKET socket, size_t size_limit, HttpRequest &request) {
+            std::string head;
+            char buffer[1024];
+
+            while (head.find("\r\n\r\n") == std::string::npos) {
+                if (head.size() >= size_limit) {
+                    return false;
+                }
+
+                // read no further than the limit, so the head cannot overshoot it
+                const size_t budget = std::min(sizeof(buffer), size_limit - head.size());
+                const int received = recv(socket, buffer, static_cast<int>(budget), 0);
+                if (received <= 0) {
+                    return false;
+                }
+
+                head.append(buffer, static_cast<size_t>(received));
+            }
+
+            const auto line_end = head.find("\r\n");
+            const auto line = head.substr(0, line_end);
+
+            const auto method_end = line.find(' ');
+            if (method_end == std::string::npos) {
+                return false;
+            }
+
+            const auto target_end = line.find(' ', method_end + 1);
+            if (target_end == std::string::npos) {
+                return false;
+            }
+
+            request.method = line.substr(0, method_end);
+            auto target = line.substr(method_end + 1, target_end - method_end - 1);
+
+            const auto query_start = target.find('?');
+            if (query_start != std::string::npos) {
+                parse_query(target.substr(query_start + 1), request);
+                target = target.substr(0, query_start);
+            }
+
+            request.path = url_decode(target);
+            return true;
+        }
+
+        int query_int(const HttpRequest &request, const std::string &name, int fallback,
+                int min, int max) {
+
+            const auto pos = request.query.find(name);
+            if (pos == request.query.end()) {
+                return fallback;
+            }
+
+            try {
+                return std::clamp(std::stoi(pos->second), min, max);
+            } catch (const std::exception &) {
+                return fallback;
+            }
+        }
+
+        // an <img> can show a cross-origin stream without this, but a browser client that
+        // decodes the bytes itself has to fetch() them, and fetch is subject to CORS. errors
+        // carry it too, or the client sees an opaque failure instead of the status.
+        constexpr const char *cors_header = "Access-Control-Allow-Origin: *\r\n";
+
+        void send_error(SOCKET socket, const char *status) {
+            const std::string response =
+                    std::string("HTTP/1.0 ") + status + "\r\n"
+                    + cors_header +
+                    "Content-Length: 0\r\n"
+                    "Connection: close\r\n"
+                    "\r\n";
+            send_all(socket, response);
+        }
+    }
+
+    StreamServer::StreamServer(unsigned short port)
+        : port(port)
+    {
+        if (!this->open_listener()) {
+            // the stream was asked for explicitly, so say plainly that it is not there
+            log_warning("api::stream",
+                    "the video stream is not available on port {}", this->port);
+            return;
+        }
+
+        this->running = true;
+        this->acceptor = std::thread([this] {
+            this->accept_worker();
+        });
+
+        // deliberately not logging a full URL; local IPs would leak into shared logs
+        log_info("api::stream", "video stream is listening on port: {}", this->port);
+        log_warning("api::stream",
+                "the video stream is unauthenticated - anyone who can reach port {} can watch "
+                "the game screen", this->port);
+    }
+
+    bool StreamServer::open_listener() {
+        WSADATA wsa_data;
+        const int error = WSAStartup(MAKEWORD(2, 2), &wsa_data);
+        if (error != 0) {
+            log_warning("api::stream", "WSAStartup() returned {}", error);
+            return false;
+        }
+        this->wsa_started = true;
+
+        this->listener = socket(AF_INET, SOCK_STREAM, 0);
+        if (this->listener == INVALID_SOCKET) {
+            log_warning("api::stream", "could not create listener socket: {}",
+                    get_last_error_string());
+            return false;
+        }
+
+        int opt_enable = 1;
+        if (setsockopt(this->listener, SOL_SOCKET, SO_REUSEADDR,
+                reinterpret_cast<const char *>(&opt_enable), sizeof(int)) == -1) {
+            log_warning("api::stream", "could not set socket option SO_REUSEADDR: {}",
+                    get_last_error_string());
+        }
+
+        sockaddr_in server_address {};
+        server_address.sin_family = AF_INET;
+        server_address.sin_port = htons(this->port);
+        server_address.sin_addr.s_addr = INADDR_ANY;
+
+        if (bind(this->listener, (sockaddr *) &server_address, sizeof(sockaddr)) == -1) {
+            log_warning("api::stream", "could not bind socket on port {}: {}",
+                    this->port, get_last_error_string());
+            closesocket(this->listener);
+            this->listener = INVALID_SOCKET;
+            return false;
+        }
+
+        if (listen(this->listener, server_backlog) == -1) {
+            log_warning("api::stream", "could not listen on port {}: {}",
+                    this->port, get_last_error_string());
+            closesocket(this->listener);
+            this->listener = INVALID_SOCKET;
+            return false;
+        }
+
+        return true;
+    }
+
+    StreamServer::~StreamServer() {
+
+        this->running = false;
+
+        if (this->listener != INVALID_SOCKET) {
+            closesocket(this->listener);
+            this->listener = INVALID_SOCKET;
+        }
+
+        // drops the client threads out of their blocking send/recv
+        {
+            std::lock_guard<std::mutex> lock(this->clients_m);
+            for (auto &client : this->clients) {
+                if (client.socket != INVALID_SOCKET) {
+                    ::shutdown(client.socket, SD_BOTH);
+                }
+            }
+        }
+
+        if (this->acceptor.joinable()) {
+            this->acceptor.join();
+        }
+
+        // joining is what guarantees no client thread outlives this object
+        for (auto &client : this->clients) {
+            if (client.thread.joinable()) {
+                client.thread.join();
+            }
+        }
+
+        if (this->wsa_started) {
+            WSACleanup();
+        }
+    }
+
+    void StreamServer::accept_worker() {
+
+        while (this->running) {
+            sockaddr_in client_address {};
+            int client_address_size = sizeof(sockaddr_in);
+
+            const SOCKET client = accept(
+                    this->listener, (sockaddr *) &client_address, &client_address_size);
+            if (client == INVALID_SOCKET) {
+                // on shutdown the listener is closed under us; otherwise do not spin
+                if (this->running) {
+                    std::this_thread::sleep_for(std::chrono::milliseconds(10));
+                }
+                continue;
+            }
+
+            if (!this->running) {
+                closesocket(client);
+                break;
+            }
+
+            char address_data[INET_ADDRSTRLEN] {};
+            inet_ntop(AF_INET, &client_address.sin_addr, address_data, INET_ADDRSTRLEN);
+            std::string address(address_data);
+
+            // every client costs an encode and real bandwidth, so the cap protects the game
+            int slot = -1;
+            {
+                std::lock_guard<std::mutex> lock(this->clients_m);
+                for (size_t i = 0; i < this->clients.size(); i++) {
+                    if (!this->clients[i].active) {
+                        this->clients[i].active = true;
+                        this->clients[i].socket = client;
+                        slot = static_cast<int>(i);
+                        break;
+                    }
+                }
+            }
+
+            if (slot < 0) {
+                log_warning("api::stream", "client limit of {} hit", client_limit);
+                send_error(client, "503 Service Unavailable");
+                closesocket(client);
+                continue;
+            }
+
+            // this thread is the only one that touches the thread objects, so the slot's
+            // previous occupant gets reaped here rather than being detached
+            if (this->clients[slot].thread.joinable()) {
+                this->clients[slot].thread.join();
+            }
+
+            this->clients[slot].thread = std::thread([this, slot, client, address] {
+                this->client_worker(slot, client, address);
+            });
+        }
+    }
+
+    void StreamServer::client_worker(int slot, SOCKET socket, std::string address) {
+
+        DWORD timeout = request_timeout_ms;
+        setsockopt(socket, SOL_SOCKET, SO_RCVTIMEO,
+                reinterpret_cast<const char *>(&timeout), sizeof(timeout));
+
+        timeout = send_timeout_ms;
+        setsockopt(socket, SOL_SOCKET, SO_SNDTIMEO,
+                reinterpret_cast<const char *>(&timeout), sizeof(timeout));
+
+        int opt_enable = 1;
+        setsockopt(socket, IPPROTO_TCP, TCP_NODELAY,
+                reinterpret_cast<const char *>(&opt_enable), sizeof(int));
+
+        // whatever sits in the send buffer is already stale, and the default holds about a
+        // third of a second of H.264 because the bitrate is so low. keeping it small makes a
+        // slow reader block the sender, which then skips to the newest frame instead of
+        // handing over a backlog
+        int send_buffer = send_buffer_bytes;
+        setsockopt(socket, SOL_SOCKET, SO_SNDBUF,
+                reinterpret_cast<const char *>(&send_buffer), sizeof(send_buffer));
+
+        HttpRequest request;
+        if (read_request(socket, request_size_limit, request)) {
+            if (request.method != "GET") {
+                send_error(socket, "405 Method Not Allowed");
+            } else {
+                const int fps = query_int(request, "fps", 30, 1, fps_limit);
+                const int quality = query_int(request, "q", 70, 1, 100);
+
+                auto writer = make_stream_writer(request.path, quality, fps);
+                if (!writer) {
+                    send_error(socket, "404 Not Found");
+                } else {
+                    std::vector<int> screens;
+                    graphics_screens_get(screens);
+
+                    // registration takes a raw swapchain index and never bounds it, so the
+                    // capture range has to be enforced here rather than assumed
+                    const auto streamable = [&screens](int screen) {
+                        return screen < static_cast<int>(GRAPHICS_CAPTURE_SCREEN_NO)
+                                && std::find(screens.begin(), screens.end(), screen)
+                                        != screens.end();
+                    };
+
+                    // screen 1 is the subscreen in every game that has one; single-screen games
+                    // only ever register screen 0, so resolve the default against what exists.
+                    // left unclamped so a nonsense screen is reported as what was asked for
+                    int screen = query_int(request, "screen", -1, 0,
+                            std::numeric_limits<int>::max());
+                    if (screen < 0) {
+                        screen = streamable(1) ? 1 : 0;
+                    }
+
+                    // the default always lands on a screen that exists, so this is only ever
+                    // an explicit request for one that cannot be captured
+                    if (!streamable(screen)) {
+                        log_warning("api::stream",
+                                "screen {} is not available, refusing {}", screen, address);
+                        send_error(socket, "404 Not Found");
+                    } else if (!capture_pump::claim_screen(screen)) {
+                        log_warning("api::stream",
+                                "screen {} is already being streamed, refusing {}",
+                                screen, address);
+                        send_error(socket, "503 Service Unavailable");
+                    } else {
+                        log_info("api::stream",
+                                "client connected: {} ({}, screen={}, fps={}, quality={})",
+                                address, request.path, screen, fps, quality);
+
+                        const std::string header =
+                                "HTTP/1.0 200 OK\r\n"
+                                "Connection: close\r\n"
+                                + std::string(cors_header) +
+                                "Cache-Control: no-store, no-cache, must-revalidate\r\n"
+                                "Pragma: no-cache\r\n"
+                                "Content-Type: " + writer->content_type() + "\r\n"
+                                "\r\n";
+
+                        const StreamSend stream_send = [socket](const void *data, size_t size) {
+                            return send_all(socket, data, size);
+                        };
+
+                        if (send_all(socket, header) && writer->begin(stream_send)) {
+                            const auto interval = std::chrono::microseconds(1000000 / fps);
+
+                            while (this->running) {
+                                const auto started = std::chrono::steady_clock::now();
+
+                                capture_pump::Frame frame;
+                                const bool ok = capture_pump::capture_direct(
+                                        screen, frame.pixels, 1,
+                                        &frame.timestamp, &frame.width, &frame.height);
+
+                                if (ok && frame.pixels) {
+                                    if (!writer->write(stream_send, frame)) {
+                                        break;
+                                    }
+                                } else if (client_gone(socket)) {
+                                    break;
+                                }
+
+                                // a failed capture still paces, or a stalled game spins this
+                                std::this_thread::sleep_until(started + interval);
+                            }
+                        }
+
+                        capture_pump::release_screen(screen);
+                        log_info("api::stream", "client disconnected: {}", address);
+                    }
+                }
+            }
+        }
+
+        {
+            std::lock_guard<std::mutex> lock(this->clients_m);
+            this->clients[slot].socket = INVALID_SOCKET;
+            this->clients[slot].active = false;
+        }
+
+        closesocket(socket);
+    }
+}
@@ -0,0 +1,54 @@
+#pragma once
+
+#include <array>
+#include <atomic>
+#include <cstdint>
+#include <mutex>
+#include <string>
+#include <thread>
+
+#include <winsock2.h>
+
+namespace api {
+
+    class StreamServer {
+    public:
+
+        explicit StreamServer(unsigned short port);
+        ~StreamServer();
+
+        StreamServer(const StreamServer &) = delete;
+        StreamServer &operator=(const StreamServer &) = delete;
+
+    private:
+
+        // configuration
+        static constexpr int server_backlog = 4;
+        static constexpr int client_limit = 4;
+        static constexpr int request_size_limit = 8 * 1024;
+        static constexpr int request_timeout_ms = 5000;
+        static constexpr int send_timeout_ms = 5000;
+        // small enough that a low bitrate stream cannot hide a backlog of stale frames in it
+        static constexpr int send_buffer_bytes = 16 * 1024;
+        static constexpr int fps_limit = 60;
+
+        struct Client {
+            std::thread thread;
+            SOCKET socket = INVALID_SOCKET;
+            bool active = false;
+        };
+
+        void accept_worker();
+        bool open_listener();
+        void client_worker(int slot, SOCKET socket, std::string address);
+
+        unsigned short port;
+        SOCKET listener = INVALID_SOCKET;
+        bool wsa_started = false;
+        std::atomic_bool running { false };
+        std::thread acceptor;
+        std::mutex clients_m;
+        // socket and active are guarded by clients_m; only the acceptor touches thread
+        std::array<Client, client_limit> clients;
+    };
+}
@@ -12,6 +12,20 @@ using namespace headsocket;

 namespace api {

+    namespace {
+
+        // how long a single handshake read may stall before the connection is dropped;
+        // headsocket reads the request a byte at a time, so this is an idle timeout between
+        // bytes rather than a deadline for the whole handshake
+        constexpr int handshake_timeout_ms = 5000;
+
+        void set_recv_timeout(connection &conn, int milliseconds) {
+            DWORD timeout = static_cast<DWORD>(milliseconds);
+            setsockopt(conn.impl()->socket, SOL_SOCKET, SO_RCVTIMEO,
+                    reinterpret_cast<const char *>(&timeout), sizeof(timeout));
+        }
+    }
+
    /*
     * Client class declaration
     */
@@ -37,6 +51,21 @@ namespace api {
        HEADSOCKET_SERVER(WebSocketServer, web_socket_server);
    public:
        WebSocketController *websocket;
+
+    protected:
+        bool handshake(connection &conn) override {
+
+            // headsocket runs the handshake on its single accept thread with a blocking
+            // recv, so a peer that connects and then says nothing would park that thread and
+            // leave every later connection sitting unaccepted in the backlog
+            set_recv_timeout(conn, handshake_timeout_ms);
+            const bool accepted = base_t::handshake(conn);
+
+            // from here the client thread owns the socket and wants to block on reads
+            set_recv_timeout(conn, 0);
+
+            return accepted;
+        }
    };

    void api::WebSocketServer::init() {}
@@ -1114,6 +1114,7 @@ namespace avs {
 #endif
            // jubeat
            {"jubeat.dll", 0x2000000},
+            {"jubeat2019.dll", 0x10000000},

            // MUSECA
            {"museca.dll", 0xC000000},
@@ -1924,7 +1925,7 @@ namespace avs {
 #if !SPICE64
            // sdvx4 bad log config fix
            if (avs::game::DLL_NAME == "soundvoltex.dll" &&  // it's too early for avs::game::is_model
-                property_search_safe(config, config_node, "/log/enable_console")) {
+                property_search(config, config_node, "/log/enable_console")) {
                log_info("avs-core", "applying SDVX4 avs-config.xml fix for <log><enable_console>");
                property_search_remove_safe(config, config_node, "/log/enable_console");
            }
@@ -591,6 +591,7 @@ namespace avs {
            // for proper reporting of Omnimix and other song packs
            if (_stricmp(EA3_MODEL, "LDJ") == 0 ||
                _stricmp(EA3_MODEL, "L44") == 0 ||
+                _stricmp(EA3_MODEL, "T44") == 0 ||
                _stricmp(EA3_MODEL, "M39") == 0 ||
                _stricmp(EA3_MODEL, "KFC") == 0)
            {
@@ -6,6 +6,7 @@
        <asmv3:windowsSettings xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">
            <dpiAwareness xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">PerMonitorV2</dpiAwareness>
            <dpiAware>true</dpiAware>
+            <activeCodePage xmlns="http://schemas.microsoft.com/SMI/2019/WindowsSettings">Legacy</activeCodePage>
        </asmv3:windowsSettings>
    </asmv3:application>
    <dependency>
@@ -1,72 +1,72 @@
-# fails the build if a PE binary statically imports a forbidden DLL.
-#
-# some DLLs must never end up in spice's static import table, for two reasons:
-#
-#  1. user-overridable DLLs (e.g. DXVK's d3d9.dll): users drop their own copy
-#     into the modules directory to replace the system one. a static import
-#     forces the loader to load the SYSTEM copy at process startup - before the
-#     modules directory is added to the DLL search path and before the game DLL
-#     loads - so the user-supplied override never takes effect (see issue #779).
-#
-#  2. DLLs that break games when present (e.g. Media Foundation: mf/mfplat/
-#     mfreadwrite): a static import loads them eagerly and breaks Unity games.
-#
-# in both cases the DLL must instead be loaded dynamically (libutils::try_library
-# / GetProcAddress / delay load) so it is only pulled in when actually needed.
-#
-# invoked via `cmake -P` from a POST_BUILD step. required -D variables:
-#   OBJDUMP     - path to objdump (CMAKE_OBJDUMP)
-#   TARGET_FILE - path to the PE binary to inspect
-#   FORBIDDEN   - semicolon-separated list of lowercase DLL names to reject
-
-if(NOT OBJDUMP OR NOT EXISTS "${OBJDUMP}")
-    message(WARNING
-        "check_no_static_dll_imports: objdump not found, skipping import check for ${TARGET_FILE}")
-    return()
-endif()
-
-execute_process(
-    COMMAND "${OBJDUMP}" -p "${TARGET_FILE}"
-    OUTPUT_VARIABLE dump_output
-    RESULT_VARIABLE dump_result
-    ERROR_VARIABLE dump_error)
-
-if(NOT dump_result EQUAL 0)
-    message(WARNING
-        "check_no_static_dll_imports: objdump failed for ${TARGET_FILE}: ${dump_error}")
-    return()
-endif()
-
-# both GNU objdump and llvm-objdump print one "DLL Name: <name>" line per
-# statically imported DLL in their PE private-header dump.
-string(REGEX MATCHALL "DLL Name:[ \t]*[^\n\r]+" dll_lines "${dump_output}")
-
-set(violations "")
-foreach(line IN LISTS dll_lines)
-    string(REGEX REPLACE "DLL Name:[ \t]*" "" dll_name "${line}")
-    string(STRIP "${dll_name}" dll_name)
-    string(TOLOWER "${dll_name}" dll_name_lower)
-    if(dll_name_lower IN_LIST FORBIDDEN)
-        list(APPEND violations "${dll_name}")
-    endif()
-endforeach()
-
-if(violations)
-    list(REMOVE_DUPLICATES violations)
-    string(REPLACE ";" ", " violations_str "${violations}")
-    message(FATAL_ERROR
-        "static DLL import check FAILED for ${TARGET_FILE}\n"
-        "  forbidden static imports found: ${violations_str}\n"
-        "\n"
-        "  these DLLs must never be statically imported by spice:\n"
-        "    * user-overridable DLLs (e.g. DXVK d3d9.dll) - a static import loads the\n"
-        "      system copy at startup and preempts the modules override (issue #779).\n"
-        "    * Media Foundation DLLs (mf/mfplat/mfreadwrite) - a static import breaks\n"
-        "      Unity games.\n"
-        "\n"
-        "  fix: load the DLL dynamically instead - replace the direct API call with a\n"
-        "  libutils::try_library() + libutils::try_proc() lookup (or a delay load), then\n"
-        "  call through the resolved function pointer.")
-endif()
-
-message(STATUS "static DLL import check passed for ${TARGET_FILE}")
+# fails the build if a PE binary statically imports a forbidden DLL.
+#
+# some DLLs must never end up in spice's static import table, for two reasons:
+#
+#  1. user-overridable DLLs (e.g. DXVK's d3d9.dll): users drop their own copy
+#     into the modules directory to replace the system one. a static import
+#     forces the loader to load the SYSTEM copy at process startup - before the
+#     modules directory is added to the DLL search path and before the game DLL
+#     loads - so the user-supplied override never takes effect (see issue #779).
+#
+#  2. DLLs that break games when present (e.g. Media Foundation: mf/mfplat/
+#     mfreadwrite): a static import loads them eagerly and breaks Unity games.
+#
+# in both cases the DLL must instead be loaded dynamically (libutils::try_library
+# / GetProcAddress / delay load) so it is only pulled in when actually needed.
+#
+# invoked via `cmake -P` from a POST_BUILD step. required -D variables:
+#   OBJDUMP     - path to objdump (CMAKE_OBJDUMP)
+#   TARGET_FILE - path to the PE binary to inspect
+#   FORBIDDEN   - semicolon-separated list of lowercase DLL names to reject
+
+if(NOT OBJDUMP OR NOT EXISTS "${OBJDUMP}")
+    message(WARNING
+        "check_no_static_dll_imports: objdump not found, skipping import check for ${TARGET_FILE}")
+    return()
+endif()
+
+execute_process(
+    COMMAND "${OBJDUMP}" -p "${TARGET_FILE}"
+    OUTPUT_VARIABLE dump_output
+    RESULT_VARIABLE dump_result
+    ERROR_VARIABLE dump_error)
+
+if(NOT dump_result EQUAL 0)
+    message(WARNING
+        "check_no_static_dll_imports: objdump failed for ${TARGET_FILE}: ${dump_error}")
+    return()
+endif()
+
+# both GNU objdump and llvm-objdump print one "DLL Name: <name>" line per
+# statically imported DLL in their PE private-header dump.
+string(REGEX MATCHALL "DLL Name:[ \t]*[^\n\r]+" dll_lines "${dump_output}")
+
+set(violations "")
+foreach(line IN LISTS dll_lines)
+    string(REGEX REPLACE "DLL Name:[ \t]*" "" dll_name "${line}")
+    string(STRIP "${dll_name}" dll_name)
+    string(TOLOWER "${dll_name}" dll_name_lower)
+    if(dll_name_lower IN_LIST FORBIDDEN)
+        list(APPEND violations "${dll_name}")
+    endif()
+endforeach()
+
+if(violations)
+    list(REMOVE_DUPLICATES violations)
+    string(REPLACE ";" ", " violations_str "${violations}")
+    message(FATAL_ERROR
+        "static DLL import check FAILED for ${TARGET_FILE}\n"
+        "  forbidden static imports found: ${violations_str}\n"
+        "\n"
+        "  these DLLs must never be statically imported by spice:\n"
+        "    * user-overridable DLLs (e.g. DXVK d3d9.dll) - a static import loads the\n"
+        "      system copy at startup and preempts the modules override (issue #779).\n"
+        "    * Media Foundation DLLs (mf/mfplat/mfreadwrite) - a static import breaks\n"
+        "      Unity games.\n"
+        "\n"
+        "  fix: load the DLL dynamically instead - replace the direct API call with a\n"
+        "  libutils::try_library() + libutils::try_proc() lookup (or a delay load), then\n"
+        "  call through the resolved function pointer.")
+endif()
+
+message(STATUS "static DLL import check passed for ${TARGET_FILE}")
@@ -7,6 +7,7 @@ RUN pacman --noconfirm -Syu git \
    ninja \
    cmake \
    unzip \
+    nasm \
    mingw-w64-crt \
    mingw-w64-winpthreads \
    mingw-w64-gcc \
@@ -23,3 +24,11 @@ ENV PATH="$PATH:/opt/llvm-mingw-xp/bin"

 RUN curl -fsSL "https://github.com/mon/windows-dll-compat-checker/releases/download/v1.3/windows_dll_compat_checker-linux-x86_64.tar.xz" \
    | tar -xJ -C /usr/local/bin
+
+# libjpeg-turbo for JPEG encoding. Only the mingw-w64 toolchains get it;
+# the WinXP targets build without JPEG support entirely.
+RUN su user -c "yay --noconfirm -S mingw-w64-libjpeg-turbo"
+
+# x264 for the API H.264 video stream. Only the mingw-w64 toolchains need it;
+# the WinXP targets build without the stream encoder.
+RUN su user -c "yay --noconfirm -S mingw-w64-x264"
@@ -1,95 +1,95 @@
-Copyright (c) 2017, keshikan (http://www.keshikan.net),
-with Reserved Font Name "DSEG".
-
-
-This Font Software is licensed under the SIL Open Font License, Version 1.1.
-This license is copied below, and is also available with a FAQ at:
-http://scripts.sil.org/OFL
-
-
-----------------------------------------------------------
-SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
-----------------------------------------------------------
-
-PREAMBLE
-The goals of the Open Font License (OFL) are to stimulate worldwide
-development of collaborative font projects, to support the font creation
-efforts of academic and linguistic communities, and to provide a free and
-open framework in which fonts may be shared and improved in partnership
-with others.
-
-The OFL allows the licensed fonts to be used, studied, modified and
-redistributed freely as long as they are not sold by themselves. The
-fonts, including any derivative works, can be bundled, embedded, 
-redistributed and/or sold with any software provided that any reserved
-names are not used by derivative works. The fonts and derivatives,
-however, cannot be released under any other type of license. The
-requirement for fonts to remain under this license does not apply
-to any document created using the fonts or their derivatives.
-
-DEFINITIONS
-"Font Software" refers to the set of files released by the Copyright
-Holder(s) under this license and clearly marked as such. This may
-include source files, build scripts and documentation.
-
-"Reserved Font Name" refers to any names specified as such after the
-copyright statement(s).
-
-"Original Version" refers to the collection of Font Software components as
-distributed by the Copyright Holder(s).
-
-"Modified Version" refers to any derivative made by adding to, deleting,
-or substituting -- in part or in whole -- any of the components of the
-Original Version, by changing formats or by porting the Font Software to a
-new environment.
-
-"Author" refers to any designer, engineer, programmer, technical
-writer or other person who contributed to the Font Software.
-
-PERMISSION & CONDITIONS
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of the Font Software, to use, study, copy, merge, embed, modify,
-redistribute, and sell modified and unmodified copies of the Font
-Software, subject to the following conditions:
-
-1) Neither the Font Software nor any of its individual components,
-in Original or Modified Versions, may be sold by itself.
-
-2) Original or Modified Versions of the Font Software may be bundled,
-redistributed and/or sold with any software, provided that each copy
-contains the above copyright notice and this license. These can be
-included either as stand-alone text files, human-readable headers or
-in the appropriate machine-readable metadata fields within text or
-binary files as long as those fields can be easily viewed by the user.
-
-3) No Modified Version of the Font Software may use the Reserved Font
-Name(s) unless explicit written permission is granted by the corresponding
-Copyright Holder. This restriction only applies to the primary font name as
-presented to the users.
-
-4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
-Software shall not be used to promote, endorse or advertise any
-Modified Version, except to acknowledge the contribution(s) of the
-Copyright Holder(s) and the Author(s) or with their explicit written
-permission.
-
-5) The Font Software, modified or unmodified, in part or in whole,
-must be distributed entirely under this license, and must not be
-distributed under any other license. The requirement for fonts to
-remain under this license does not apply to any document created
-using the Font Software.
-
-TERMINATION
-This license becomes null and void if any of the above conditions are
-not met.
-
-DISCLAIMER
-THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
-OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
-COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
-INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
-DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
-OTHER DEALINGS IN THE FONT SOFTWARE.
+Copyright (c) 2017, keshikan (http://www.keshikan.net),
+with Reserved Font Name "DSEG".
+
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+http://scripts.sil.org/OFL
+
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded, 
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.
@@ -1,73 +1,73 @@
-#ifndef EASYWSCLIENT_HPP_20120819_MIOFVASDTNUASZDQPLFD
-#define EASYWSCLIENT_HPP_20120819_MIOFVASDTNUASZDQPLFD
-
-// This code comes from:
-// https://github.com/dhbaird/easywsclient
-//
-// To get the latest version:
-// wget https://raw.github.com/dhbaird/easywsclient/master/easywsclient.hpp
-// wget https://raw.github.com/dhbaird/easywsclient/master/easywsclient.cpp
-
-#include <string>
-#include <vector>
-#include <cstdint>
-
-namespace easywsclient {
-
-struct Callback_Imp { virtual void operator()(const std::string& message) = 0; };
-struct BytesCallback_Imp { virtual void operator()(const std::vector<uint8_t>& message) = 0; };
-
-class WebSocket {
-  public:
-    typedef WebSocket * pointer;
-    typedef enum readyStateValues { CLOSING, CLOSED, CONNECTING, OPEN } readyStateValues;
-
-    // Factories:
-    static pointer create_dummy();
-    static pointer from_url(const std::string& url, const std::string& origin = std::string());
-    static pointer from_url_no_mask(const std::string& url, const std::string& origin = std::string());
-
-    // Interfaces:
-    virtual ~WebSocket() { }
-    virtual void poll(int timeout = 0) = 0; // timeout in milliseconds
-    virtual void send(const std::string& message) = 0;
-    virtual void sendBinary(const std::string& message) = 0;
-    virtual void sendBinary(const std::vector<uint8_t>& message) = 0;
-    virtual void sendPing() = 0;
-    virtual void close() = 0;
-    virtual readyStateValues getReadyState() const = 0;
-
-    template<class Callable>
-    void dispatch(Callable callable)
-        // For callbacks that accept a string argument.
-    { // N.B. this is compatible with both C++11 lambdas, functors and C function pointers
-        struct _Callback : public Callback_Imp {
-            Callable& callable;
-            _Callback(Callable& callable) : callable(callable) { }
-            void operator()(const std::string& message) { callable(message); }
-        };
-        _Callback callback(callable);
-        _dispatch(callback);
-    }
-
-    template<class Callable>
-    void dispatchBinary(Callable callable)
-        // For callbacks that accept a std::vector<uint8_t> argument.
-    { // N.B. this is compatible with both C++11 lambdas, functors and C function pointers
-        struct _Callback : public BytesCallback_Imp {
-            Callable& callable;
-            _Callback(Callable& callable) : callable(callable) { }
-            void operator()(const std::vector<uint8_t>& message) { callable(message); }
-        };
-        _Callback callback(callable);
-        _dispatchBinary(callback);
-    }
-
-  protected:
-    virtual void _dispatch(Callback_Imp& callable) = 0;
-    virtual void _dispatchBinary(BytesCallback_Imp& callable) = 0;
-};
-
-} // namespace easywsclient
-
-#endif /* EASYWSCLIENT_HPP_20120819_MIOFVASDTNUASZDQPLFD */
+#ifndef EASYWSCLIENT_HPP_20120819_MIOFVASDTNUASZDQPLFD
+#define EASYWSCLIENT_HPP_20120819_MIOFVASDTNUASZDQPLFD
+
+// This code comes from:
+// https://github.com/dhbaird/easywsclient
+//
+// To get the latest version:
+// wget https://raw.github.com/dhbaird/easywsclient/master/easywsclient.hpp
+// wget https://raw.github.com/dhbaird/easywsclient/master/easywsclient.cpp
+
+#include <string>
+#include <vector>
+#include <cstdint>
+
+namespace easywsclient {
+
+struct Callback_Imp { virtual void operator()(const std::string& message) = 0; };
+struct BytesCallback_Imp { virtual void operator()(const std::vector<uint8_t>& message) = 0; };
+
+class WebSocket {
+  public:
+    typedef WebSocket * pointer;
+    typedef enum readyStateValues { CLOSING, CLOSED, CONNECTING, OPEN } readyStateValues;
+
+    // Factories:
+    static pointer create_dummy();
+    static pointer from_url(const std::string& url, const std::string& origin = std::string());
+    static pointer from_url_no_mask(const std::string& url, const std::string& origin = std::string());
+
+    // Interfaces:
+    virtual ~WebSocket() { }
+    virtual void poll(int timeout = 0) = 0; // timeout in milliseconds
+    virtual void send(const std::string& message) = 0;
+    virtual void sendBinary(const std::string& message) = 0;
+    virtual void sendBinary(const std::vector<uint8_t>& message) = 0;
+    virtual void sendPing() = 0;
+    virtual void close() = 0;
+    virtual readyStateValues getReadyState() const = 0;
+
+    template<class Callable>
+    void dispatch(Callable callable)
+        // For callbacks that accept a string argument.
+    { // N.B. this is compatible with both C++11 lambdas, functors and C function pointers
+        struct _Callback : public Callback_Imp {
+            Callable& callable;
+            _Callback(Callable& callable) : callable(callable) { }
+            void operator()(const std::string& message) { callable(message); }
+        };
+        _Callback callback(callable);
+        _dispatch(callback);
+    }
+
+    template<class Callable>
+    void dispatchBinary(Callable callable)
+        // For callbacks that accept a std::vector<uint8_t> argument.
+    { // N.B. this is compatible with both C++11 lambdas, functors and C function pointers
+        struct _Callback : public BytesCallback_Imp {
+            Callable& callable;
+            _Callback(Callable& callable) : callable(callable) { }
+            void operator()(const std::vector<uint8_t>& message) { callable(message); }
+        };
+        _Callback callback(callable);
+        _dispatchBinary(callback);
+    }
+
+  protected:
+    virtual void _dispatch(Callback_Imp& callable) = 0;
+    virtual void _dispatchBinary(BytesCallback_Imp& callable) = 0;
+};
+
+} // namespace easywsclient
+
+#endif /* EASYWSCLIENT_HPP_20120819_MIOFVASDTNUASZDQPLFD */
@@ -0,0 +1,122 @@
+// fpng.h - unlicense (see end of fpng.cpp)
+#pragma once
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <vector>
+
+#ifndef FPNG_TRAIN_HUFFMAN_TABLES
+	// Set to 1 when using the -t (training) option in fpng_test to generate new opaque/alpha Huffman tables for the single pass encoder.
+	#define FPNG_TRAIN_HUFFMAN_TABLES (0)
+#endif
+
+namespace fpng
+{
+	// ---- Library initialization - call once to identify if the processor supports SSE.
+	// Otherwise you'll only get scalar fallbacks.
+	void fpng_init();
+
+	// ---- Useful Utilities
+
+	// Returns true if the CPU supports SSE 4.1, and SSE support wasn't disabled by setting FPNG_NO_SSE=1.
+	// fpng_init() must have been called first, or it'll assert and return false.
+	bool fpng_cpu_supports_sse41();
+
+	// Fast CRC-32 SSE4.1+pclmul or a scalar fallback (slice by 4)
+	const uint32_t FPNG_CRC32_INIT = 0;
+	uint32_t fpng_crc32(const void* pData, size_t size, uint32_t prev_crc32 = FPNG_CRC32_INIT);
+
+	// Fast Adler32 SSE4.1 Adler-32 with a scalar fallback.
+	const uint32_t FPNG_ADLER32_INIT = 1;
+	uint32_t fpng_adler32(const void* pData, size_t size, uint32_t adler = FPNG_ADLER32_INIT);
+
+	// ---- Compression
+	enum
+	{
+		// Enables computing custom Huffman tables for each file, instead of using the custom global tables. 
+		// Results in roughly 6% smaller files on average, but compression is around 40% slower.
+		FPNG_ENCODE_SLOWER = 1, 
+		
+		// Only use raw Deflate blocks (no compression at all). Intended for testing.
+		FPNG_FORCE_UNCOMPRESSED = 2,
+	};
+
+	// Fast PNG encoding. The resulting file can be decoded either using a standard PNG decoder or by the fpng_decode_memory() function below.
+	// pImage: pointer to RGB or RGBA image pixels, R first in memory, B/A last.
+	// w/h - image dimensions. Image's row pitch in bytes must is w*num_chans.
+	// num_chans must be 3 or 4. 
+	bool fpng_encode_image_to_memory(const void* pImage, uint32_t w, uint32_t h, uint32_t num_chans, std::vector<uint8_t>& out_buf, uint32_t flags = 0);
+
+#ifndef FPNG_NO_STDIO
+	// Fast PNG encoding to the specified file.
+	bool fpng_encode_image_to_file(const char* pFilename, const void* pImage, uint32_t w, uint32_t h, uint32_t num_chans, uint32_t flags = 0);
+#endif
+
+	// ---- Decompression
+		
+	enum
+	{
+		FPNG_DECODE_SUCCESS = 0,				// file is a valid PNG file and written by FPNG and the decode succeeded
+		
+		FPNG_DECODE_NOT_FPNG,					// file is a valid PNG file, but it wasn't written by FPNG so you should try decoding it with a general purpose PNG decoder
+
+		FPNG_DECODE_INVALID_ARG,				// invalid function parameter
+
+		FPNG_DECODE_FAILED_NOT_PNG,				// file cannot be a PNG file
+		FPNG_DECODE_FAILED_HEADER_CRC32,		// a chunk CRC32 check failed, file is likely corrupted or not PNG
+		FPNG_DECODE_FAILED_INVALID_DIMENSIONS,  // invalid image dimensions in IHDR chunk (0 or too large)
+		FPNG_DECODE_FAILED_DIMENSIONS_TOO_LARGE, // decoding the file fully into memory would likely require too much memory (only on 32bpp builds)
+		FPNG_DECODE_FAILED_CHUNK_PARSING,		// failed while parsing the chunk headers, or file is corrupted
+		FPNG_DECODE_FAILED_INVALID_IDAT,		// IDAT data length is too small and cannot be valid, file is either corrupted or it's a bug
+
+		// fpng_decode_file() specific errors
+		FPNG_DECODE_FILE_OPEN_FAILED,
+		FPNG_DECODE_FILE_TOO_LARGE,
+		FPNG_DECODE_FILE_READ_FAILED,
+		FPNG_DECODE_FILE_SEEK_FAILED
+	};
+
+	// Fast PNG decoding of files ONLY created by fpng_encode_image_to_memory() or fpng_encode_image_to_file().
+	// If fpng_get_info() or fpng_decode_memory() returns FPNG_DECODE_NOT_FPNG, you should decode the PNG by falling back to a general purpose decoder.
+	//
+	// fpng_get_info() parses the PNG header and iterates through all chunks to determine if it's a file written by FPNG, but does not decompress the actual image data so it's relatively fast.
+	// 
+	// pImage, image_size: Pointer to PNG image data and its size
+	// width, height: output image's dimensions
+	// channels_in_file: will be 3 or 4
+	// 
+	// Returns FPNG_DECODE_SUCCESS on success, otherwise one of the failure codes above.
+	// If FPNG_DECODE_NOT_FPNG is returned, you must decompress the file with a general purpose PNG decoder.
+	// If another error occurs, the file is likely corrupted or invalid, but you can still try to decompress the file with another decoder (which will likely fail).
+	int fpng_get_info(const void* pImage, uint32_t image_size, uint32_t& width, uint32_t& height, uint32_t& channels_in_file);
+
+	// fpng_decode_memory() decompresses 24/32bpp PNG files ONLY encoded by this module.
+	// If the image was written by FPNG, it will decompress the image data, otherwise it will return FPNG_DECODE_NOT_FPNG in which case you should fall back to a general purpose PNG decoder (lodepng, stb_image, libpng, etc.)
+	//
+	// pImage, image_size: Pointer to PNG image data and its size
+	// out: Output 24/32bpp image buffer
+	// width, height: output image's dimensions
+	// channels_in_file: will be 3 or 4
+	// desired_channels: must be 3 or 4 
+	// 
+	// If the image is 24bpp and 32bpp is requested, the alpha values will be set to 0xFF. 
+	// If the image is 32bpp and 24bpp is requested, the alpha values will be discarded.
+	// 
+	// Returns FPNG_DECODE_SUCCESS on success, otherwise one of the failure codes above.
+	// If FPNG_DECODE_NOT_FPNG is returned, you must decompress the file with a general purpose PNG decoder.
+	// If another error occurs, the file is likely corrupted or invalid, but you can still try to decompress the file with another decoder (which will likely fail).
+	int fpng_decode_memory(const void* pImage, uint32_t image_size, std::vector<uint8_t>& out, uint32_t& width, uint32_t& height, uint32_t& channels_in_file, uint32_t desired_channels);
+
+#ifndef FPNG_NO_STDIO
+	int fpng_decode_file(const char* pFilename, std::vector<uint8_t>& out, uint32_t& width, uint32_t& height, uint32_t& channels_in_file, uint32_t desired_channels);
+#endif
+
+	// ---- Internal API used for Huffman table training purposes
+
+#if FPNG_TRAIN_HUFFMAN_TABLES
+	const uint32_t HUFF_COUNTS_SIZE = 288;
+	extern uint64_t g_huff_counts[HUFF_COUNTS_SIZE];
+	bool create_dynamic_block_prefix(uint64_t* pFreq, uint32_t num_chans, std::vector<uint8_t>& prefix, uint64_t& bit_buf, int& bit_buf_size, uint32_t *pCodes, uint8_t *pCodesizes);
+#endif
+
+} // namespace fpng
@@ -878,7 +878,15 @@ inline void ImGui::FileBrowser::UpdateFileRecords()

 inline void ImGui::FileBrowser::SetPwdUncatched(const std::filesystem::path &pwd)
 {
-    pwd_ = absolute(pwd);
+    // spice2x
+    // avoid MinGW std::filesystem::absolute() duplicating UNC server/share
+    // prefixes, which makes directory_iterator() throw during startup
+    // spice2x
+    const auto &nativePwd = pwd.native();
+    const bool hasUncPrefix = nativePwd.size() >= 2 &&
+        (nativePwd[0] == '\\' || nativePwd[0] == '/') &&
+        (nativePwd[1] == '\\' || nativePwd[1] == '/');
+    pwd_ = hasUncPrefix ? pwd : absolute(pwd);
    UpdateFileRecords();
    selectedFilenames_.clear();
    (*inputNameBuf_)[0] = '\0';
@@ -1,10 +0,0 @@
-zlib License
-
-Copyright (c) 2011-2016 Stephan Brumme
-
-This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software.
-Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions:
-1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software.
-   If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
-2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
-3. This notice may not be removed or altered from any source distribution.
@@ -1,665 +0,0 @@
-// //////////////////////////////////////////////////////////
-// toojpeg.cpp
-// written by Stephan Brumme, 2018-2019
-// see https://create.stephan-brumme.com/toojpeg/
-//
-
-#include "toojpeg.h"
-
-// - the "official" specifications: https://www.w3.org/Graphics/JPEG/itu-t81.pdf and https://www.w3.org/Graphics/JPEG/jfif3.pdf
-// - Wikipedia has a short description of the JFIF/JPEG file format: https://en.wikipedia.org/wiki/JPEG_File_Interchange_Format
-// - the popular STB Image library includes Jon's JPEG encoder as well: https://github.com/nothings/stb/blob/master/stb_image_write.h
-// - the most readable JPEG book (from a developer's perspective) is Miano's "Compressed Image File Formats" (1999, ISBN 0-201-60443-4),
-//   used copies are really cheap nowadays and include a CD with C++ sources as well (plus great format descriptions of GIF & PNG)
-// - much more detailled is Mitchell/Pennebaker's "JPEG: Still Image Data Compression Standard" (1993, ISBN 0-442-01272-1)
-//   which contains the official JPEG standard, too - fun fact: I bought a signed copy in a second-hand store without noticing
-
-namespace // anonymous namespace to hide local functions / constants / etc.
-{
-// ////////////////////////////////////////
-// data types
-using uint8_t  = unsigned char;
-using uint16_t = unsigned short;
-using  int16_t =          short;
-using  int32_t =          int; // at least four bytes
-
-// ////////////////////////////////////////
-// constants
-
-// quantization tables from JPEG Standard, Annex K
-const uint8_t DefaultQuantLuminance[8*8] =
-    { 16, 11, 10, 16, 24, 40, 51, 61, // there are a few experts proposing slightly more efficient values,
-      12, 12, 14, 19, 26, 58, 60, 55, // e.g. https://www.imagemagick.org/discourse-server/viewtopic.php?t=20333
-      14, 13, 16, 24, 40, 57, 69, 56, // btw: Google's Guetzli project optimizes the quantization tables per image
-      14, 17, 22, 29, 51, 87, 80, 62,
-      18, 22, 37, 56, 68,109,103, 77,
-      24, 35, 55, 64, 81,104,113, 92,
-      49, 64, 78, 87,103,121,120,101,
-      72, 92, 95, 98,112,100,103, 99 };
-const uint8_t DefaultQuantChrominance[8*8] =
-    { 17, 18, 24, 47, 99, 99, 99, 99,
-      18, 21, 26, 66, 99, 99, 99, 99,
-      24, 26, 56, 99, 99, 99, 99, 99,
-      47, 66, 99, 99, 99, 99, 99, 99,
-      99, 99, 99, 99, 99, 99, 99, 99,
-      99, 99, 99, 99, 99, 99, 99, 99,
-      99, 99, 99, 99, 99, 99, 99, 99,
-      99, 99, 99, 99, 99, 99, 99, 99 };
-
-// 8x8 blocks are processed in zig-zag order
-// most encoders use a zig-zag "forward" table, I switched to its inverse for performance reasons
-// note: ZigZagInv[ZigZag[i]] = i
-const uint8_t ZigZagInv[8*8] =
-    {  0, 1, 8,16, 9, 2, 3,10,   // ZigZag[] =  0, 1, 5, 6,14,15,27,28,
-      17,24,32,25,18,11, 4, 5,   //             2, 4, 7,13,16,26,29,42,
-      12,19,26,33,40,48,41,34,   //             3, 8,12,17,25,30,41,43,
-      27,20,13, 6, 7,14,21,28,   //             9,11,18,24,31,40,44,53,
-      35,42,49,56,57,50,43,36,   //            10,19,23,32,39,45,52,54,
-      29,22,15,23,30,37,44,51,   //            20,22,33,38,46,51,55,60,
-      58,59,52,45,38,31,39,46,   //            21,34,37,47,50,56,59,61,
-      53,60,61,54,47,55,62,63 }; //            35,36,48,49,57,58,62,63
-
-// static Huffman code tables from JPEG standard Annex K
-// - CodesPerBitsize tables define how many Huffman codes will have a certain bitsize (plus 1 because there nothing with zero bits),
-//   e.g. DcLuminanceCodesPerBitsize[2] = 5 because there are 5 Huffman codes being 2+1=3 bits long
-// - Values tables are a list of values ordered by their Huffman code bitsize,
-//   e.g. AcLuminanceValues => Huffman(0x01,0x02 and 0x03) will have 2 bits, Huffman(0x00) will have 3 bits, Huffman(0x04,0x11 and 0x05) will have 4 bits, ...
-
-// Huffman definitions for first DC/AC tables (luminance / Y channel)
-const uint8_t DcLuminanceCodesPerBitsize[16]   = { 0,1,5,1,1,1,1,1,1,0,0,0,0,0,0,0 };   // sum = 12
-const uint8_t DcLuminanceValues         [12]   = { 0,1,2,3,4,5,6,7,8,9,10,11 };         // => 12 codes
-const uint8_t AcLuminanceCodesPerBitsize[16]   = { 0,2,1,3,3,2,4,3,5,5,4,4,0,0,1,125 }; // sum = 162
-const uint8_t AcLuminanceValues        [162]   =                                        // => 162 codes
-    { 0x01,0x02,0x03,0x00,0x04,0x11,0x05,0x12,0x21,0x31,0x41,0x06,0x13,0x51,0x61,0x07,0x22,0x71,0x14,0x32,0x81,0x91,0xA1,0x08, // 16*10+2 symbols because
-      0x23,0x42,0xB1,0xC1,0x15,0x52,0xD1,0xF0,0x24,0x33,0x62,0x72,0x82,0x09,0x0A,0x16,0x17,0x18,0x19,0x1A,0x25,0x26,0x27,0x28, // upper 4 bits can be 0..F
-      0x29,0x2A,0x34,0x35,0x36,0x37,0x38,0x39,0x3A,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4A,0x53,0x54,0x55,0x56,0x57,0x58,0x59, // while lower 4 bits can be 1..A
-      0x5A,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6A,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A,0x83,0x84,0x85,0x86,0x87,0x88,0x89, // plus two special codes 0x00 and 0xF0
-      0x8A,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xB2,0xB3,0xB4,0xB5,0xB6, // order of these symbols was determined empirically by JPEG committee
-      0xB7,0xB8,0xB9,0xBA,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xE1,0xE2,
-      0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA };
-// Huffman definitions for second DC/AC tables (chrominance / Cb and Cr channels)
-const uint8_t DcChrominanceCodesPerBitsize[16] = { 0,3,1,1,1,1,1,1,1,1,1,0,0,0,0,0 };   // sum = 12
-const uint8_t DcChrominanceValues         [12] = { 0,1,2,3,4,5,6,7,8,9,10,11 };         // => 12 codes (identical to DcLuminanceValues)
-const uint8_t AcChrominanceCodesPerBitsize[16] = { 0,2,1,2,4,4,3,4,7,5,4,4,0,1,2,119 }; // sum = 162
-const uint8_t AcChrominanceValues        [162] =                                        // => 162 codes
-    { 0x00,0x01,0x02,0x03,0x11,0x04,0x05,0x21,0x31,0x06,0x12,0x41,0x51,0x07,0x61,0x71,0x13,0x22,0x32,0x81,0x08,0x14,0x42,0x91, // same number of symbol, just different order
-      0xA1,0xB1,0xC1,0x09,0x23,0x33,0x52,0xF0,0x15,0x62,0x72,0xD1,0x0A,0x16,0x24,0x34,0xE1,0x25,0xF1,0x17,0x18,0x19,0x1A,0x26, // (which is more efficient for AC coding)
-      0x27,0x28,0x29,0x2A,0x35,0x36,0x37,0x38,0x39,0x3A,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4A,0x53,0x54,0x55,0x56,0x57,0x58,
-      0x59,0x5A,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6A,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A,0x82,0x83,0x84,0x85,0x86,0x87,
-      0x88,0x89,0x8A,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xB2,0xB3,0xB4,
-      0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,
-      0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA };
-const int16_t CodeWordLimit = 2048; // +/-2^11, maximum value after DCT
-
-// ////////////////////////////////////////
-// structs
-
-// represent a single Huffman code
-struct BitCode
-{
-  BitCode() = default; // undefined state, must be initialized at a later time
-  BitCode(uint16_t code_, uint8_t numBits_)
-  : code(code_), numBits(numBits_) {}
-  uint16_t code;       // JPEG's Huffman codes are limited to 16 bits
-  uint8_t  numBits;    // number of valid bits
-};
-
-// wrapper for bit output operations
-struct BitWriter
-{
-  // user-supplied callback that writes/stores one byte
-  TooJpeg::WRITE_ONE_BYTE output;
-  // initialize writer
-  explicit BitWriter(TooJpeg::WRITE_ONE_BYTE output_) : output(output_) {}
-
-  // store the most recently encoded bits that are not written yet
-  struct BitBuffer
-  {
-    int32_t data    = 0; // actually only at most 24 bits are used
-    uint8_t numBits = 0; // number of valid bits (the right-most bits)
-  } buffer;
-
-  // write Huffman bits stored in BitCode, keep excess bits in BitBuffer
-  BitWriter& operator<<(const BitCode& data)
-  {
-    // append the new bits to those bits leftover from previous call(s)
-    buffer.numBits += data.numBits;
-    buffer.data   <<= data.numBits;
-    buffer.data    |= data.code;
-
-    // write all "full" bytes
-    while (buffer.numBits >= 8)
-    {
-      // extract highest 8 bits
-      buffer.numBits -= 8;
-      auto oneByte = uint8_t(buffer.data >> buffer.numBits);
-      output(oneByte);
-
-      if (oneByte == 0xFF) // 0xFF has a special meaning for JPEGs (it's a block marker)
-        output(0);         // therefore pad a zero to indicate "nope, this one ain't a marker, it's just a coincidence"
-
-      // note: I don't clear those written bits, therefore buffer.bits may contain garbage in the high bits
-      //       if you really want to "clean up" (e.g. for debugging purposes) then uncomment the following line
-      //buffer.bits &= (1 << buffer.numBits) - 1;
-    }
-    return *this;
-  }
-
-  // write all non-yet-written bits, fill gaps with 1s (that's a strange JPEG thing)
-  void flush()
-  {
-    // at most seven set bits needed to "fill" the last byte: 0x7F = binary 0111 1111
-    *this << BitCode(0x7F, 7); // I should set buffer.numBits = 0 but since there are no single bits written after flush() I can safely ignore it
-  }
-
-  // NOTE: all the following BitWriter functions IGNORE the BitBuffer and write straight to output !
-  // write a single byte
-  BitWriter& operator<<(uint8_t oneByte)
-  {
-    output(oneByte);
-    return *this;
-  }
-
-  // write an array of bytes
-  template <typename T, int Size>
-  BitWriter& operator<<(T (&manyBytes)[Size])
-  {
-    for (auto c : manyBytes)
-      output(c);
-    return *this;
-  }
-
-  // start a new JFIF block
-  void addMarker(uint8_t id, uint16_t length)
-  {
-    output(0xFF); output(id);     // ID, always preceded by 0xFF
-    output(uint8_t(length >> 8)); // length of the block (big-endian, includes the 2 length bytes as well)
-    output(uint8_t(length & 0xFF));
-  }
-};
-
-// ////////////////////////////////////////
-// functions / templates
-
-// same as std::min()
-template <typename Number>
-Number minimum(Number value, Number maximum)
-{
-  return value <= maximum ? value : maximum;
-}
-
-// restrict a value to the interval [minimum, maximum]
-template <typename Number, typename Limit>
-Number clamp(Number value, Limit minValue, Limit maxValue)
-{
-  if (value <= minValue) return minValue; // never smaller than the minimum
-  if (value >= maxValue) return maxValue; // never bigger  than the maximum
-  return value;                           // value was inside interval, keep it
-}
-
-// convert from RGB to YCbCr, constants are similar to ITU-R, see https://en.wikipedia.org/wiki/YCbCr#JPEG_conversion
-float rgb2y (float r, float g, float b) { return +0.299f   * r +0.587f   * g +0.114f   * b; }
-float rgb2cb(float r, float g, float b) { return -0.16874f * r -0.33126f * g +0.5f     * b; }
-float rgb2cr(float r, float g, float b) { return +0.5f     * r -0.41869f * g -0.08131f * b; }
-
-// forward DCT computation "in one dimension" (fast AAN algorithm by Arai, Agui and Nakajima: "A fast DCT-SQ scheme for images")
-void DCT(float block[8*8], uint8_t stride) // stride must be 1 (=horizontal) or 8 (=vertical)
-{
-  const auto SqrtHalfSqrt = 1.306562965f; //    sqrt((2 + sqrt(2)) / 2) = cos(pi * 1 / 8) * sqrt(2)
-  const auto InvSqrt      = 0.707106781f; // 1 / sqrt(2)                = cos(pi * 2 / 8)
-  const auto HalfSqrtSqrt = 0.382683432f; //     sqrt(2 - sqrt(2)) / 2  = cos(pi * 3 / 8)
-  const auto InvSqrtSqrt  = 0.541196100f; // 1 / sqrt(2 - sqrt(2))      = cos(pi * 3 / 8) * sqrt(2)
-
-  // modify in-place
-  auto& block0 = block[0         ];
-  auto& block1 = block[1 * stride];
-  auto& block2 = block[2 * stride];
-  auto& block3 = block[3 * stride];
-  auto& block4 = block[4 * stride];
-  auto& block5 = block[5 * stride];
-  auto& block6 = block[6 * stride];
-  auto& block7 = block[7 * stride];
-
-  // based on https://dev.w3.org/Amaya/libjpeg/jfdctflt.c , the original variable names can be found in my comments
-  auto add07 = block0 + block7; auto sub07 = block0 - block7; // tmp0, tmp7
-  auto add16 = block1 + block6; auto sub16 = block1 - block6; // tmp1, tmp6
-  auto add25 = block2 + block5; auto sub25 = block2 - block5; // tmp2, tmp5
-  auto add34 = block3 + block4; auto sub34 = block3 - block4; // tmp3, tmp4
-
-  auto add0347 = add07 + add34; auto sub07_34 = add07 - add34; // tmp10, tmp13 ("even part" / "phase 2")
-  auto add1256 = add16 + add25; auto sub16_25 = add16 - add25; // tmp11, tmp12
-
-  block0 = add0347 + add1256; block4 = add0347 - add1256; // "phase 3"
-
-  auto z1 = (sub16_25 + sub07_34) * InvSqrt; // all temporary z-variables kept their original names
-  block2 = sub07_34 + z1; block6 = sub07_34 - z1; // "phase 5"
-
-  auto sub23_45 = sub25 + sub34; // tmp10 ("odd part" / "phase 2")
-  auto sub12_56 = sub16 + sub25; // tmp11
-  auto sub01_67 = sub16 + sub07; // tmp12
-
-  auto z5 = (sub23_45 - sub01_67) * HalfSqrtSqrt;
-  auto z2 = sub23_45 * InvSqrtSqrt  + z5;
-  auto z3 = sub12_56 * InvSqrt;
-  auto z4 = sub01_67 * SqrtHalfSqrt + z5;
-  auto z6 = sub07 + z3; // z11 ("phase 5")
-  auto z7 = sub07 - z3; // z13
-  block1 = z6 + z4; block7 = z6 - z4; // "phase 6"
-  block5 = z7 + z2; block3 = z7 - z2;
-}
-
-// run DCT, quantize and write Huffman bit codes
-int16_t encodeBlock(BitWriter& writer, float block[8][8], const float scaled[8*8], int16_t lastDC,
-                    const BitCode huffmanDC[256], const BitCode huffmanAC[256], const BitCode* codewords)
-{
-  // "linearize" the 8x8 block, treat it as a flat array of 64 floats
-  auto block64 = (float*) block;
-
-  // DCT: rows
-  for (auto offset = 0; offset < 8; offset++)
-    DCT(block64 + offset*8, 1);
-  // DCT: columns
-  for (auto offset = 0; offset < 8; offset++)
-    DCT(block64 + offset*1, 8);
-
-  // scale
-  for (auto i = 0; i < 8*8; i++)
-    block64[i] *= scaled[i];
-
-  // encode DC (the first coefficient is the "average color" of the 8x8 block)
-  auto DC = int(block64[0] + (block64[0] >= 0 ? +0.5f : -0.5f)); // C++11's nearbyint() achieves a similar effect
-
-  // quantize and zigzag the other 63 coefficients
-  auto posNonZero = 0; // find last coefficient which is not zero (because trailing zeros are encoded differently)
-  int16_t quantized[8*8];
-  for (auto i = 1; i < 8*8; i++) // start at 1 because block64[0]=DC was already processed
-  {
-    auto value = block64[ZigZagInv[i]];
-    // round to nearest integer
-    quantized[i] = int(value + (value >= 0 ? +0.5f : -0.5f)); // C++11's nearbyint() achieves a similar effect
-    // remember offset of last non-zero coefficient
-    if (quantized[i] != 0)
-      posNonZero = i;
-  }
-
-  // same "average color" as previous block ?
-  auto diff = DC - lastDC;
-  if (diff == 0)
-    writer << huffmanDC[0x00];   // yes, write a special short symbol
-  else
-  {
-    auto bits = codewords[diff]; // nope, encode the difference to previous block's average color
-    writer << huffmanDC[bits.numBits] << bits;
-  }
-
-  // encode ACs (quantized[1..63])
-  auto offset = 0; // upper 4 bits count the number of consecutive zeros
-  for (auto i = 1; i <= posNonZero; i++) // quantized[0] was already written, skip all trailing zeros, too
-  {
-    // zeros are encoded in a special way
-    while (quantized[i] == 0) // found another zero ?
-    {
-      offset    += 0x10; // add 1 to the upper 4 bits
-      // split into blocks of at most 16 consecutive zeros
-      if (offset > 0xF0) // remember, the counter is in the upper 4 bits, 0xF = 15
-      {
-        writer << huffmanAC[0xF0]; // 0xF0 is a special code for "16 zeros"
-        offset = 0;
-      }
-      i++;
-    }
-
-    auto encoded = codewords[quantized[i]];
-    // combine number of zeros with the number of bits of the next non-zero value
-    writer << huffmanAC[offset + encoded.numBits] << encoded; // and the value itself
-    offset = 0;
-  }
-
-  // send end-of-block code (0x00), only needed if there are trailing zeros
-  if (posNonZero < 8*8 - 1) // = 63
-    writer << huffmanAC[0x00];
-
-  return DC;
-}
-
-// Jon's code includes the pre-generated Huffman codes
-// I don't like these "magic constants" and compute them on my own :-)
-void generateHuffmanTable(const uint8_t numCodes[16], const uint8_t* values, BitCode result[256])
-{
-  // process all bitsizes 1 thru 16, no JPEG Huffman code is allowed to exceed 16 bits
-  auto huffmanCode = 0;
-  for (auto numBits = 1; numBits <= 16; numBits++)
-  {
-    // ... and each code of these bitsizes
-    for (auto i = 0; i < numCodes[numBits - 1]; i++) // note: numCodes array starts at zero, but smallest bitsize is 1
-      result[*values++] = BitCode(huffmanCode++, numBits);
-
-    // next Huffman code needs to be one bit wider
-    huffmanCode <<= 1;
-  }
-}
-
-} // end of anonymous namespace
-
-// -------------------- externally visible code --------------------
-
-namespace TooJpeg
-{
-// the only exported function ...
-bool writeJpeg(WRITE_ONE_BYTE output, const void* pixels_, unsigned short width, unsigned short height,
-               bool isRGB, unsigned char quality_, bool downsample, const char* comment)
-{
-  // reject invalid pointers
-  if (output == nullptr || pixels_ == nullptr)
-    return false;
-  // check image format
-  if (width == 0 || height == 0)
-    return false;
-
-  // number of components
-  const auto numComponents = isRGB ? 3 : 1;
-  // note: if there is just one component (=grayscale), then only luminance needs to be stored in the file
-  //       thus everything related to chrominance need not to be written to the JPEG
-  //       I still compute a few things, like quantization tables to avoid a complete code mess
-
-  // grayscale images can't be downsampled (because there are no Cb + Cr channels)
-  if (!isRGB)
-    downsample = false;
-
-  // wrapper for all output operations
-  BitWriter bitWriter(output);
-
-  // ////////////////////////////////////////
-  // JFIF headers
-  const uint8_t HeaderJfif[2+2+16] =
-      { 0xFF,0xD8,         // SOI marker (start of image)
-        0xFF,0xE0,         // JFIF APP0 tag
-        0,16,              // length: 16 bytes (14 bytes payload + 2 bytes for this length field)
-        'J','F','I','F',0, // JFIF identifier, zero-terminated
-        1,1,               // JFIF version 1.1
-        0,                 // no density units specified
-        0,1,0,1,           // density: 1 pixel "per pixel" horizontally and vertically
-        0,0 };             // no thumbnail (size 0 x 0)
-  bitWriter << HeaderJfif;
-
-  // ////////////////////////////////////////
-  // comment (optional)
-  if (comment != nullptr)
-  {
-    // look for zero terminator
-    auto length = 0; // = strlen(comment);
-    while (comment[length] != 0)
-      length++;
-
-    // write COM marker
-    bitWriter.addMarker(0xFE, 2+length); // block size is number of bytes (without zero terminator) + 2 bytes for this length field
-    // ... and write the comment itself
-    for (auto i = 0; i < length; i++)
-      bitWriter << comment[i];
-  }
-
-  // ////////////////////////////////////////
-  // adjust quantization tables to desired quality
-
-  // quality level must be in 1 ... 100
-  auto quality = clamp<uint16_t>(quality_, 1, 100);
-  // convert to an internal JPEG quality factor, formula taken from libjpeg
-  quality = quality < 50 ? 5000 / quality : 200 - quality * 2;
-
-  uint8_t quantLuminance  [8*8];
-  uint8_t quantChrominance[8*8];
-  for (auto i = 0; i < 8*8; i++)
-  {
-    int luminance   = (DefaultQuantLuminance  [ZigZagInv[i]] * quality + 50) / 100;
-    int chrominance = (DefaultQuantChrominance[ZigZagInv[i]] * quality + 50) / 100;
-
-    // clamp to 1..255
-    quantLuminance  [i] = clamp(luminance,   1, 255);
-    quantChrominance[i] = clamp(chrominance, 1, 255);
-  }
-
-  // write quantization tables
-  bitWriter.addMarker(0xDB, 2 + (isRGB ? 2 : 1) * (1 + 8*8)); // length: 65 bytes per table + 2 bytes for this length field
-                                                              // each table has 64 entries and is preceded by an ID byte
-
-  bitWriter   << 0x00 << quantLuminance;   // first  quantization table
-  if (isRGB)
-    bitWriter << 0x01 << quantChrominance; // second quantization table, only relevant for color images
-
-  // ////////////////////////////////////////
-  // write image infos (SOF0 - start of frame)
-  bitWriter.addMarker(0xC0, 2+6+3*numComponents); // length: 6 bytes general info + 3 per channel + 2 bytes for this length field
-
-  // 8 bits per channel
-  bitWriter << 0x08
-  // image dimensions (big-endian)
-            << (height >> 8) << (height & 0xFF)
-            << (width  >> 8) << (width  & 0xFF);
-
-  // sampling and quantization tables for each component
-  bitWriter << numComponents;       // 1 component (grayscale, Y only) or 3 components (Y,Cb,Cr)
-  for (auto id = 1; id <= numComponents; id++)
-    bitWriter <<  id                // component ID (Y=1, Cb=2, Cr=3)
-    // bitmasks for sampling: highest 4 bits: horizontal, lowest 4 bits: vertical
-              << (id == 1 && downsample ? 0x22 : 0x11) // 0x11 is default YCbCr 4:4:4 and 0x22 stands for YCbCr 4:2:0
-              << (id == 1 ? 0 : 1); // use quantization table 0 for Y, table 1 for Cb and Cr
-
-  // ////////////////////////////////////////
-  // Huffman tables
-  // DHT marker - define Huffman tables
-  bitWriter.addMarker(0xC4, isRGB ? (2+208+208) : (2+208));
-                            // 2 bytes for the length field, store chrominance only if needed
-                            //   1+16+12  for the DC luminance
-                            //   1+16+162 for the AC luminance   (208 = 1+16+12 + 1+16+162)
-                            //   1+16+12  for the DC chrominance
-                            //   1+16+162 for the AC chrominance (208 = 1+16+12 + 1+16+162, same as above)
-
-  // store luminance's DC+AC Huffman table definitions
-  bitWriter << 0x00 // highest 4 bits: 0 => DC, lowest 4 bits: 0 => Y (baseline)
-            << DcLuminanceCodesPerBitsize
-            << DcLuminanceValues;
-  bitWriter << 0x10 // highest 4 bits: 1 => AC, lowest 4 bits: 0 => Y (baseline)
-            << AcLuminanceCodesPerBitsize
-            << AcLuminanceValues;
-
-  // compute actual Huffman code tables (see Jon's code for precalculated tables)
-  BitCode huffmanLuminanceDC[256];
-  BitCode huffmanLuminanceAC[256];
-  generateHuffmanTable(DcLuminanceCodesPerBitsize, DcLuminanceValues, huffmanLuminanceDC);
-  generateHuffmanTable(AcLuminanceCodesPerBitsize, AcLuminanceValues, huffmanLuminanceAC);
-
-  // chrominance is only relevant for color images
-  BitCode huffmanChrominanceDC[256];
-  BitCode huffmanChrominanceAC[256];
-  if (isRGB)
-  {
-    // store luminance's DC+AC Huffman table definitions
-    bitWriter << 0x01 // highest 4 bits: 0 => DC, lowest 4 bits: 1 => Cr,Cb (baseline)
-              << DcChrominanceCodesPerBitsize
-              << DcChrominanceValues;
-    bitWriter << 0x11 // highest 4 bits: 1 => AC, lowest 4 bits: 1 => Cr,Cb (baseline)
-              << AcChrominanceCodesPerBitsize
-              << AcChrominanceValues;
-
-    // compute actual Huffman code tables (see Jon's code for precalculated tables)
-    generateHuffmanTable(DcChrominanceCodesPerBitsize, DcChrominanceValues, huffmanChrominanceDC);
-    generateHuffmanTable(AcChrominanceCodesPerBitsize, AcChrominanceValues, huffmanChrominanceAC);
-  }
-
-  // ////////////////////////////////////////
-  // start of scan (there is only a single scan for baseline JPEGs)
-  bitWriter.addMarker(0xDA, 2+1+2*numComponents+3); // 2 bytes for the length field, 1 byte for number of components,
-                                                    // then 2 bytes for each component and 3 bytes for spectral selection
-
-  // assign Huffman tables to each component
-  bitWriter << numComponents;
-  for (auto id = 1; id <= numComponents; id++)
-    // highest 4 bits: DC Huffman table, lowest 4 bits: AC Huffman table
-    bitWriter << id << (id == 1 ? 0x00 : 0x11); // Y: tables 0 for DC and AC; Cb + Cr: tables 1 for DC and AC
-
-  // constant values for our baseline JPEGs (which have a single sequential scan)
-  static const uint8_t Spectral[3] = { 0, 63, 0 }; // spectral selection: must be from 0 to 63; successive approximation must be 0
-  bitWriter << Spectral;
-
-  // ////////////////////////////////////////
-  // adjust quantization tables with AAN scaling factors to simplify DCT
-  float scaledLuminance  [8*8];
-  float scaledChrominance[8*8];
-  for (auto i = 0; i < 8*8; i++)
-  {
-    auto row    = ZigZagInv[i] / 8; // same as ZigZagInv[i] >> 3
-    auto column = ZigZagInv[i] % 8; // same as ZigZagInv[i] &  7
-
-    // scaling constants for AAN DCT algorithm: AanScaleFactors[0] = 1, AanScaleFactors[k=1..7] = cos(k*PI/16) * sqrt(2)
-    static const float AanScaleFactors[8] = { 1, 1.387039845f, 1.306562965f, 1.175875602f, 1, 0.785694958f, 0.541196100f, 0.275899379f };
-    auto factor = 1 / (AanScaleFactors[row] * AanScaleFactors[column] * 8);
-    scaledLuminance  [ZigZagInv[i]] = factor / quantLuminance  [i];
-    scaledChrominance[ZigZagInv[i]] = factor / quantChrominance[i];
-    // if you really want JPEGs that are bitwise identical to Jon Olick's code then you need slightly different formulas (note: sqrt(8) = 2.828427125f)
-    //static const float aasf[] = { 1.0f * 2.828427125f, 1.387039845f * 2.828427125f, 1.306562965f * 2.828427125f, 1.175875602f * 2.828427125f, 1.0f * 2.828427125f, 0.785694958f * 2.828427125f, 0.541196100f * 2.828427125f, 0.275899379f * 2.828427125f }; // line 240 of jo_jpeg.cpp
-    //scaledLuminance  [ZigZagInv[i]] = 1 / (quantLuminance  [i] * aasf[row] * aasf[column]); // lines 266-267 of jo_jpeg.cpp
-    //scaledChrominance[ZigZagInv[i]] = 1 / (quantChrominance[i] * aasf[row] * aasf[column]);
-  }
-
-  // ////////////////////////////////////////
-  // precompute JPEG codewords for quantized DCT
-  BitCode  codewordsArray[2 * CodeWordLimit];          // note: quantized[i] is found at codewordsArray[quantized[i] + CodeWordLimit]
-  BitCode* codewords = &codewordsArray[CodeWordLimit]; // allow negative indices, so quantized[i] is at codewords[quantized[i]]
-  uint8_t numBits = 1; // each codeword has at least one bit (value == 0 is undefined)
-  int32_t mask    = 1; // mask is always 2^numBits - 1, initial value 2^1-1 = 2-1 = 1
-  for (int16_t value = 1; value < CodeWordLimit; value++)
-  {
-    // numBits = position of highest set bit (ignoring the sign)
-    // mask    = (2^numBits) - 1
-    if (value > mask) // one more bit ?
-    {
-      numBits++;
-      mask = (mask << 1) | 1; // append a set bit
-    }
-    codewords[-value] = BitCode(mask - value, numBits); // note that I use a negative index => codewords[-value] = codewordsArray[CodeWordLimit  value]
-    codewords[+value] = BitCode(       value, numBits);
-  }
-
-  // just convert image data from void*
-  auto pixels = (const uint8_t*)pixels_;
-
-  // the next two variables are frequently used when checking for image borders
-  const auto maxWidth  = width  - 1; // "last row"
-  const auto maxHeight = height - 1; // "bottom line"
-
-  // process MCUs (minimum codes units) => image is subdivided into a grid of 8x8 or 16x16 tiles
-  const auto sampling = downsample ? 2 : 1; // 1x1 or 2x2 sampling
-  const auto mcuSize  = 8 * sampling;
-
-  // average color of the previous MCU
-  int16_t lastYDC = 0, lastCbDC = 0, lastCrDC = 0;
-  // convert from RGB to YCbCr
-  float Y[8][8], Cb[8][8], Cr[8][8];
-
-  for (auto mcuY = 0; mcuY < height; mcuY += mcuSize) // each step is either 8 or 16 (=mcuSize)
-    for (auto mcuX = 0; mcuX < width; mcuX += mcuSize)
-    {
-      // YCbCr 4:4:4 format: each MCU is a 8x8 block - the same applies to grayscale images, too
-      // YCbCr 4:2:0 format: each MCU represents a 16x16 block, stored as 4x 8x8 Y-blocks plus 1x 8x8 Cb and 1x 8x8 Cr block)
-      for (auto blockY = 0; blockY < mcuSize; blockY += 8) // iterate once (YCbCr444 and grayscale) or twice (YCbCr420)
-        for (auto blockX = 0; blockX < mcuSize; blockX += 8)
-        {
-          // now we finally have an 8x8 block ...
-          for (auto deltaY = 0; deltaY < 8; deltaY++)
-          {
-            auto column = minimum(mcuX + blockX         , maxWidth); // must not exceed image borders, replicate last row/column if needed
-            auto row    = minimum(mcuY + blockY + deltaY, maxHeight);
-            for (auto deltaX = 0; deltaX < 8; deltaX++)
-            {
-              // find actual pixel position within the current image
-              auto pixelPos = row * int(width) + column; // the cast ensures that we don't run into multiplication overflows
-              if (column < maxWidth)
-                column++;
-
-              // grayscale images have solely a Y channel which can be easily derived from the input pixel by shifting it by 128
-              if (!isRGB)
-              {
-                Y[deltaY][deltaX] = pixels[pixelPos] - 128.f;
-                continue;
-              }
-
-              // RGB: 3 bytes per pixel (whereas grayscale images have only 1 byte per pixel)
-              auto r = pixels[3 * pixelPos    ];
-              auto g = pixels[3 * pixelPos + 1];
-              auto b = pixels[3 * pixelPos + 2];
-
-              Y   [deltaY][deltaX] = rgb2y (r, g, b) - 128; // again, the JPEG standard requires Y to be shifted by 128
-              // YCbCr444 is easy - the more complex YCbCr420 has to be computed about 20 lines below in a second pass
-              if (!downsample)
-              {
-                Cb[deltaY][deltaX] = rgb2cb(r, g, b); // standard RGB-to-YCbCr conversion
-                Cr[deltaY][deltaX] = rgb2cr(r, g, b);
-              }
-            }
-          }
-
-        // encode Y channel
-        lastYDC = encodeBlock(bitWriter, Y, scaledLuminance, lastYDC, huffmanLuminanceDC, huffmanLuminanceAC, codewords);
-        // Cb and Cr are encoded about 50 lines below
-      }
-
-      // grayscale images don't need any Cb and Cr information
-      if (!isRGB)
-        continue;
-
-      // ////////////////////////////////////////
-      // the following lines are only relevant for YCbCr420:
-      // average/downsample chrominance of four pixels while respecting the image borders
-      if (downsample)
-        for (short deltaY = 7; downsample && deltaY >= 0; deltaY--) // iterating loop in reverse increases cache read efficiency
-        {
-          auto row      = minimum(mcuY + 2*deltaY, maxHeight); // each deltaX/Y step covers a 2x2 area
-          auto column   =         mcuX;                        // column is updated inside next loop
-          auto pixelPos = (row * int(width) + column) * 3;     // numComponents = 3
-
-          // deltas (in bytes) to next row / column, must not exceed image borders
-          auto rowStep    = (row    < maxHeight) ? 3 * int(width) : 0; // always numComponents*width except for bottom    line
-          auto columnStep = (column < maxWidth ) ? 3              : 0; // always numComponents       except for rightmost pixel
-
-          for (short deltaX = 0; deltaX < 8; deltaX++)
-          {
-            // let's add all four samples (2x2 area)
-            auto right     = pixelPos + columnStep;
-            auto down      = pixelPos +              rowStep;
-            auto downRight = pixelPos + columnStep + rowStep;
-
-            // note: cast from 8 bits to >8 bits to avoid overflows when adding
-            auto r = short(pixels[pixelPos    ]) + pixels[right    ] + pixels[down    ] + pixels[downRight    ];
-            auto g = short(pixels[pixelPos + 1]) + pixels[right + 1] + pixels[down + 1] + pixels[downRight + 1];
-            auto b = short(pixels[pixelPos + 2]) + pixels[right + 2] + pixels[down + 2] + pixels[downRight + 2];
-
-            // convert to Cb and Cr
-            Cb[deltaY][deltaX] = rgb2cb(r, g, b) / 4; // I still have to divide r,g,b by 4 to get their average values
-            Cr[deltaY][deltaX] = rgb2cr(r, g, b) / 4; // it's a bit faster if done AFTER CbCr conversion
-
-            // step forward to next 2x2 area
-            pixelPos += 2*3; // 2 pixels => 6 bytes (2*numComponents)
-            column   += 2;
-
-            // reached right border ?
-            if (column >= maxWidth)
-            {
-              columnStep = 0;
-              pixelPos = ((row + 1) * int(width) - 1) * 3; // same as (row * width + maxWidth) * numComponents => current's row last pixel
-            }
-          }
-        } // end of YCbCr420 code for Cb and Cr
-
-      // encode Cb and Cr
-      lastCbDC = encodeBlock(bitWriter, Cb, scaledChrominance, lastCbDC, huffmanChrominanceDC, huffmanChrominanceAC, codewords);
-      lastCrDC = encodeBlock(bitWriter, Cr, scaledChrominance, lastCrDC, huffmanChrominanceDC, huffmanChrominanceAC, codewords);
-    }
-
-  bitWriter.flush(); // now image is completely encoded, write any bits still left in the buffer
-
-  // ///////////////////////////
-  // EOI marker
-  bitWriter << 0xFF << 0xD9; // this marker has no length, therefore I can't use addMarker()
-  return true;
-} // writeJpeg()
-} // namespace TooJpeg
@@ -1,62 +0,0 @@
-// //////////////////////////////////////////////////////////
-// toojpeg.h
-// written by Stephan Brumme, 2018-2019
-// see https://create.stephan-brumme.com/toojpeg/
-//
-
-// This is a compact baseline JPEG/JFIF writer, written in C++ (but looks like C for the most part).
-// Its interface has only one function: writeJpeg() - and that's it !
-//
-// basic example:
-// => create an image with any content you like, e.g. 1024x768, RGB = 3 bytes per pixel
-// auto pixels = new unsigned char[1024*768*3];
-// => you need to define a callback that receives the compressed data byte-by-byte from my JPEG writer
-// void myOutput(unsigned char oneByte) { fputc(oneByte, myFileHandle); } // save byte to file
-// => let's go !
-// TooJpeg::writeJpeg(myOutput, mypixels, 1024, 768);
-
-#pragma once
-
-namespace TooJpeg
-{
-  // write one byte (to disk, memory, ...)
-  typedef void (*WRITE_ONE_BYTE)(unsigned char);
-  // this callback is called for every byte generated by the encoder and behaves similar to fputc
-  // if you prefer stylish C++11 syntax then it can be a lambda, too:
-  // auto myOutput = [](unsigned char oneByte) { fputc(oneByte, output); };
-
-  // output       - callback that stores a single byte (writes to disk, memory, ...)
-  // pixels       - stored in RGB format or grayscale, stored from upper-left to lower-right
-  // width,height - image size
-  // isRGB        - true if RGB format (3 bytes per pixel); false if grayscale (1 byte per pixel)
-  // quality      - between 1 (worst) and 100 (best)
-  // downsample   - if true then YCbCr 4:2:0 format is used (smaller size, minor quality loss) instead of 4:4:4, not relevant for grayscale
-  // comment      - optional JPEG comment (0/NULL if no comment), must not contain ASCII code 0xFF
-  bool writeJpeg(WRITE_ONE_BYTE output, const void* pixels, unsigned short width, unsigned short height,
-                 bool isRGB = true, unsigned char quality = 90, bool downsample = false, const char* comment = nullptr);
-} // namespace TooJpeg
-
-// My main inspiration was Jon Olick's Minimalistic JPEG writer
-// ( https://www.jonolick.com/code.html => direct link is https://www.jonolick.com/uploads/7/9/2/1/7921194/jo_jpeg.cpp ).
-// However, his code documentation is quite sparse - probably because it wasn't written from scratch and is (quote:) "based on a javascript jpeg writer",
-// most likely Andreas Ritter's code: https://github.com/eugeneware/jpeg-js/blob/master/lib/encoder.js
-//
-// Therefore I wrote the whole lib from scratch and tried hard to add tons of comments to my code, especially describing where all those magic numbers come from.
-// And I managed to remove the need for any external includes ...
-// yes, that's right: my library has no (!) includes at all, not even #include <stdlib.h>
-// Depending on your callback WRITE_ONE_BYTE, the library writes either to disk, or in-memory, or wherever you wish.
-// Moreover, no dynamic memory allocations are performed, just a few bytes on the stack.
-//
-// In contrast to Jon's code, compression can be significantly improved in many use cases:
-// a) grayscale JPEG images need just a single Y channel, no need to save the superfluous Cb + Cr channels
-// b) YCbCr 4:2:0 downsampling is often about 20% more efficient (=smaller) than the default YCbCr 4:4:4 with only little visual loss
-//
-// TooJpeg 1.2+ compresses about twice as fast as jo_jpeg (and about half as fast as libjpeg-turbo).
-// A few benchmark numbers can be found on my website https://create.stephan-brumme.com/toojpeg/#benchmark
-//
-// Last but not least you can optionally add a JPEG comment.
-//
-// Your C++ compiler needs to support a reasonable subset of C++11 (g++ 4.7 or Visual C++ 2013 are sufficient).
-// I haven't tested the code on big-endian systems or anything that smells like an apple.
-//
-// USE AT YOUR OWN RISK. Because you are a brave soul :-)
@@ -1,171 +1,171 @@
-#include "asio.h"
-
-#include <windows.h>
-#include <cstring>
-
-#include "avs/game.h"
-#include "gitadora.h"
-#include "util/detour.h"
-#include "util/logging.h"
-
-namespace games::gitadora {
-
-    // Redirects the game's hard-coded "XONAR" ASIO driver lookup to the
-    // driver name in ASIO_DRIVER by intercepting registry calls to
-    // HKLM\SOFTWARE\ASIO. Sentinel HKEY values mark the redirected handles
-    // so we can recognise them on subsequent reg* calls.
-
-    static const HKEY PARENT_ASIO_REG_HANDLE = reinterpret_cast<HKEY>(0x4001);
-    static const HKEY DEVICE_ASIO_REG_HANDLE = reinterpret_cast<HKEY>(0x4002);
-    static const char *FAKE_ASIO_DEVICE_NAME = "XONAR";
-
-    static decltype(RegCloseKey) *RegCloseKey_orig = nullptr;
-    static decltype(RegEnumKeyA) *RegEnumKeyA_orig = nullptr;
-    static decltype(RegOpenKeyA) *RegOpenKeyA_orig = nullptr;
-    static decltype(RegOpenKeyExA) *RegOpenKeyExA_orig = nullptr;
-    static decltype(RegQueryValueExA) *RegQueryValueExA_orig = nullptr;
-
-    static HKEY real_asio_reg_handle = nullptr;
-    static HKEY real_asio_device_reg_handle = nullptr;
-
-    static LONG WINAPI RegOpenKeyExA_hook(HKEY hKey, LPCSTR lpSubKey, DWORD ulOptions, REGSAM samDesired,
-            PHKEY phkResult)
-    {
-        if (ASIO_DRIVER.has_value() &&
-            lpSubKey != nullptr &&
-            phkResult != nullptr &&
-            hKey == PARENT_ASIO_REG_HANDLE &&
-            _stricmp(lpSubKey, FAKE_ASIO_DEVICE_NAME) == 0) {
-
-            *phkResult = DEVICE_ASIO_REG_HANDLE;
-
-            log_info("gitadora::asio", "replacing '{}' with '{}'", lpSubKey, ASIO_DRIVER.value());
-            const auto result = RegOpenKeyExA_orig(
-                    real_asio_reg_handle,
-                    ASIO_DRIVER.value().c_str(),
-                    ulOptions,
-                    samDesired,
-                    &real_asio_device_reg_handle);
-
-            if (result != ERROR_SUCCESS) {
-                log_warning(
-                    "gitadora::asio",
-                    "failed to open registry subkey '{}', error=0x{:x}",
-                    ASIO_DRIVER.value(), result);
-                log_warning(
-                    "gitadora::asio",
-                    "due to improper ASIO setting, audio init will fail");
-            }
-
-            return result;
-        }
-
-        return RegOpenKeyExA_orig(hKey, lpSubKey, ulOptions, samDesired, phkResult);
-    }
-
-    static LONG WINAPI RegOpenKeyA_hook(HKEY hKey, LPCSTR lpSubKey, PHKEY phkResult) {
-        if (ASIO_DRIVER.has_value() &&
-            lpSubKey != nullptr &&
-            phkResult != nullptr &&
-            hKey == HKEY_LOCAL_MACHINE &&
-            _stricmp(lpSubKey, "software\\asio") == 0)
-        {
-            *phkResult = PARENT_ASIO_REG_HANDLE;
-            return RegOpenKeyA_orig(hKey, lpSubKey, &real_asio_reg_handle);
-        }
-
-        return RegOpenKeyA_orig(hKey, lpSubKey, phkResult);
-    }
-
-    static LONG WINAPI RegEnumKeyA_hook(HKEY hKey, DWORD dwIndex, LPSTR lpName, DWORD cchName) {
-        if (hKey == PARENT_ASIO_REG_HANDLE && ASIO_DRIVER.has_value()) {
-            if (dwIndex == 0) {
-                // forward to real handle just to verify the key exists; we
-                // overwrite the name with our fake driver string regardless
-                auto ret = RegEnumKeyA_orig(real_asio_reg_handle, dwIndex, lpName, cchName);
-                if (ret == ERROR_SUCCESS && lpName != nullptr && cchName > 0) {
-                    log_info("gitadora::asio", "stubbing '{}' with '{}'", lpName, FAKE_ASIO_DEVICE_NAME);
-                    strncpy(lpName, FAKE_ASIO_DEVICE_NAME, cchName);
-                    lpName[cchName - 1] = '\0';
-                }
-                return ret;
-            } else {
-                return ERROR_NO_MORE_ITEMS;
-            }
-        }
-
-        return RegEnumKeyA_orig(hKey, dwIndex, lpName, cchName);
-    }
-
-    static LONG WINAPI RegQueryValueExA_hook(HKEY hKey, LPCSTR lpValueName, LPDWORD lpReserved, LPDWORD lpType,
-            LPBYTE lpData, LPDWORD lpcbData)
-    {
-        HKEY target = hKey;
-
-        if (ASIO_DRIVER.has_value() &&
-            lpValueName != nullptr &&
-            lpData != nullptr &&
-            lpcbData != nullptr &&
-            hKey == DEVICE_ASIO_REG_HANDLE) {
-            if (_stricmp(lpValueName, "Description") == 0) {
-                // engine may verify the driver name after open; ensure it still
-                // sees something containing "XONAR" so the substring check passes
-                const size_t len = strlen(FAKE_ASIO_DEVICE_NAME) + 1;
-                if (*lpcbData < len) {
-                    *lpcbData = static_cast<DWORD>(len);
-                    return ERROR_MORE_DATA;
-                }
-                memcpy(lpData, FAKE_ASIO_DEVICE_NAME, len);
-                *lpcbData = static_cast<DWORD>(len);
-                if (lpType != nullptr) {
-                    *lpType = REG_SZ;
-                }
-                return ERROR_SUCCESS;
-            }
-
-            // for everything else (CLSID etc.) defer to the real driver subkey
-            target = real_asio_device_reg_handle;
-        }
-
-        return RegQueryValueExA_orig(target, lpValueName, lpReserved, lpType, lpData, lpcbData);
-    }
-
-    static LONG WINAPI RegCloseKey_hook(HKEY hKey) {
-        if (hKey == PARENT_ASIO_REG_HANDLE) {
-            if (real_asio_reg_handle != nullptr) {
-                RegCloseKey_orig(real_asio_reg_handle);
-                real_asio_reg_handle = nullptr;
-            }
-            return ERROR_SUCCESS;
-        }
-
-        if (hKey == DEVICE_ASIO_REG_HANDLE) {
-            if (real_asio_device_reg_handle != nullptr) {
-                RegCloseKey_orig(real_asio_device_reg_handle);
-                real_asio_device_reg_handle = nullptr;
-            }
-            return ERROR_SUCCESS;
-        }
-
-        return RegCloseKey_orig(hKey);
-    }
-
-    void asio_hook_init() {
-        if (!ASIO_DRIVER.has_value()) {
-            return;
-        }
-
-        log_info("gitadora::asio", "installing ASIO driver redirect: XONAR -> {}", ASIO_DRIVER.value());
-
-        RegCloseKey_orig = detour::iat_try(
-                "RegCloseKey", RegCloseKey_hook, avs::game::DLL_INSTANCE);
-        RegEnumKeyA_orig = detour::iat_try(
-                "RegEnumKeyA", RegEnumKeyA_hook, avs::game::DLL_INSTANCE);
-        RegOpenKeyA_orig = detour::iat_try(
-                "RegOpenKeyA", RegOpenKeyA_hook, avs::game::DLL_INSTANCE);
-        RegOpenKeyExA_orig = detour::iat_try(
-                "RegOpenKeyExA", RegOpenKeyExA_hook, avs::game::DLL_INSTANCE);
-        RegQueryValueExA_orig = detour::iat_try(
-                "RegQueryValueExA", RegQueryValueExA_hook, avs::game::DLL_INSTANCE);
-    }
-}
+#include "asio.h"
+
+#include <windows.h>
+#include <cstring>
+
+#include "avs/game.h"
+#include "gitadora.h"
+#include "util/detour.h"
+#include "util/logging.h"
+
+namespace games::gitadora {
+
+    // Redirects the game's hard-coded "XONAR" ASIO driver lookup to the
+    // driver name in ASIO_DRIVER by intercepting registry calls to
+    // HKLM\SOFTWARE\ASIO. Sentinel HKEY values mark the redirected handles
+    // so we can recognise them on subsequent reg* calls.
+
+    static const HKEY PARENT_ASIO_REG_HANDLE = reinterpret_cast<HKEY>(0x4001);
+    static const HKEY DEVICE_ASIO_REG_HANDLE = reinterpret_cast<HKEY>(0x4002);
+    static const char *FAKE_ASIO_DEVICE_NAME = "XONAR";
+
+    static decltype(RegCloseKey) *RegCloseKey_orig = nullptr;
+    static decltype(RegEnumKeyA) *RegEnumKeyA_orig = nullptr;
+    static decltype(RegOpenKeyA) *RegOpenKeyA_orig = nullptr;
+    static decltype(RegOpenKeyExA) *RegOpenKeyExA_orig = nullptr;
+    static decltype(RegQueryValueExA) *RegQueryValueExA_orig = nullptr;
+
+    static HKEY real_asio_reg_handle = nullptr;
+    static HKEY real_asio_device_reg_handle = nullptr;
+
+    static LONG WINAPI RegOpenKeyExA_hook(HKEY hKey, LPCSTR lpSubKey, DWORD ulOptions, REGSAM samDesired,
+            PHKEY phkResult)
+    {
+        if (ASIO_DRIVER.has_value() &&
+            lpSubKey != nullptr &&
+            phkResult != nullptr &&
+            hKey == PARENT_ASIO_REG_HANDLE &&
+            _stricmp(lpSubKey, FAKE_ASIO_DEVICE_NAME) == 0) {
+
+            *phkResult = DEVICE_ASIO_REG_HANDLE;
+
+            log_info("gitadora::asio", "replacing '{}' with '{}'", lpSubKey, ASIO_DRIVER.value());
+            const auto result = RegOpenKeyExA_orig(
+                    real_asio_reg_handle,
+                    ASIO_DRIVER.value().c_str(),
+                    ulOptions,
+                    samDesired,
+                    &real_asio_device_reg_handle);
+
+            if (result != ERROR_SUCCESS) {
+                log_warning(
+                    "gitadora::asio",
+                    "failed to open registry subkey '{}', error=0x{:x}",
+                    ASIO_DRIVER.value(), result);
+                log_warning(
+                    "gitadora::asio",
+                    "due to improper ASIO setting, audio init will fail");
+            }
+
+            return result;
+        }
+
+        return RegOpenKeyExA_orig(hKey, lpSubKey, ulOptions, samDesired, phkResult);
+    }
+
+    static LONG WINAPI RegOpenKeyA_hook(HKEY hKey, LPCSTR lpSubKey, PHKEY phkResult) {
+        if (ASIO_DRIVER.has_value() &&
+            lpSubKey != nullptr &&
+            phkResult != nullptr &&
+            hKey == HKEY_LOCAL_MACHINE &&
+            _stricmp(lpSubKey, "software\\asio") == 0)
+        {
+            *phkResult = PARENT_ASIO_REG_HANDLE;
+            return RegOpenKeyA_orig(hKey, lpSubKey, &real_asio_reg_handle);
+        }
+
+        return RegOpenKeyA_orig(hKey, lpSubKey, phkResult);
+    }
+
+    static LONG WINAPI RegEnumKeyA_hook(HKEY hKey, DWORD dwIndex, LPSTR lpName, DWORD cchName) {
+        if (hKey == PARENT_ASIO_REG_HANDLE && ASIO_DRIVER.has_value()) {
+            if (dwIndex == 0) {
+                // forward to real handle just to verify the key exists; we
+                // overwrite the name with our fake driver string regardless
+                auto ret = RegEnumKeyA_orig(real_asio_reg_handle, dwIndex, lpName, cchName);
+                if (ret == ERROR_SUCCESS && lpName != nullptr && cchName > 0) {
+                    log_info("gitadora::asio", "stubbing '{}' with '{}'", lpName, FAKE_ASIO_DEVICE_NAME);
+                    strncpy(lpName, FAKE_ASIO_DEVICE_NAME, cchName);
+                    lpName[cchName - 1] = '\0';
+                }
+                return ret;
+            } else {
+                return ERROR_NO_MORE_ITEMS;
+            }
+        }
+
+        return RegEnumKeyA_orig(hKey, dwIndex, lpName, cchName);
+    }
+
+    static LONG WINAPI RegQueryValueExA_hook(HKEY hKey, LPCSTR lpValueName, LPDWORD lpReserved, LPDWORD lpType,
+            LPBYTE lpData, LPDWORD lpcbData)
+    {
+        HKEY target = hKey;
+
+        if (ASIO_DRIVER.has_value() &&
+            lpValueName != nullptr &&
+            lpData != nullptr &&
+            lpcbData != nullptr &&
+            hKey == DEVICE_ASIO_REG_HANDLE) {
+            if (_stricmp(lpValueName, "Description") == 0) {
+                // engine may verify the driver name after open; ensure it still
+                // sees something containing "XONAR" so the substring check passes
+                const size_t len = strlen(FAKE_ASIO_DEVICE_NAME) + 1;
+                if (*lpcbData < len) {
+                    *lpcbData = static_cast<DWORD>(len);
+                    return ERROR_MORE_DATA;
+                }
+                memcpy(lpData, FAKE_ASIO_DEVICE_NAME, len);
+                *lpcbData = static_cast<DWORD>(len);
+                if (lpType != nullptr) {
+                    *lpType = REG_SZ;
+                }
+                return ERROR_SUCCESS;
+            }
+
+            // for everything else (CLSID etc.) defer to the real driver subkey
+            target = real_asio_device_reg_handle;
+        }
+
+        return RegQueryValueExA_orig(target, lpValueName, lpReserved, lpType, lpData, lpcbData);
+    }
+
+    static LONG WINAPI RegCloseKey_hook(HKEY hKey) {
+        if (hKey == PARENT_ASIO_REG_HANDLE) {
+            if (real_asio_reg_handle != nullptr) {
+                RegCloseKey_orig(real_asio_reg_handle);
+                real_asio_reg_handle = nullptr;
+            }
+            return ERROR_SUCCESS;
+        }
+
+        if (hKey == DEVICE_ASIO_REG_HANDLE) {
+            if (real_asio_device_reg_handle != nullptr) {
+                RegCloseKey_orig(real_asio_device_reg_handle);
+                real_asio_device_reg_handle = nullptr;
+            }
+            return ERROR_SUCCESS;
+        }
+
+        return RegCloseKey_orig(hKey);
+    }
+
+    void asio_hook_init() {
+        if (!ASIO_DRIVER.has_value()) {
+            return;
+        }
+
+        log_info("gitadora::asio", "installing ASIO driver redirect: XONAR -> {}", ASIO_DRIVER.value());
+
+        RegCloseKey_orig = detour::iat_try(
+                "RegCloseKey", RegCloseKey_hook, avs::game::DLL_INSTANCE);
+        RegEnumKeyA_orig = detour::iat_try(
+                "RegEnumKeyA", RegEnumKeyA_hook, avs::game::DLL_INSTANCE);
+        RegOpenKeyA_orig = detour::iat_try(
+                "RegOpenKeyA", RegOpenKeyA_hook, avs::game::DLL_INSTANCE);
+        RegOpenKeyExA_orig = detour::iat_try(
+                "RegOpenKeyExA", RegOpenKeyExA_hook, avs::game::DLL_INSTANCE);
+        RegQueryValueExA_orig = detour::iat_try(
+                "RegQueryValueExA", RegQueryValueExA_hook, avs::game::DLL_INSTANCE);
+    }
+}
@@ -1,12 +1,12 @@
-#pragma once
-
-namespace games::gitadora {
-
-    // installs IAT registry hooks in gfdm.dll that redirect the game's
-    // ASIO driver lookup (hard-coded "XONAR" substring) to a user-chosen
-    // driver name read from games::gitadora::ASIO_DRIVER.
-    //
-    // safe to call unconditionally; if ASIO_DRIVER is unset the hooks
-    // forward every call straight through to advapi32.
-    void asio_hook_init();
-}
+#pragma once
+
+namespace games::gitadora {
+
+    // installs IAT registry hooks in gfdm.dll that redirect the game's
+    // ASIO driver lookup (hard-coded "XONAR" substring) to a user-chosen
+    // driver name read from games::gitadora::ASIO_DRIVER.
+    //
+    // safe to call unconditionally; if ASIO_DRIVER is unset the hooks
+    // forward every call straight through to advapi32.
+    void asio_hook_init();
+}
@@ -2,15 +2,18 @@
 #include "asio.h"
 #include "handle.h"
 #include "bi2x_hook.h"
+#include <span>
 #include <unordered_map>

+#include "cfg/configurator.h"
+#include "cfg/screen_resize.h"
+
 #include <ks.h>
 #include <ksmedia.h>
-
-#include "cfg/configurator.h"
 #include "hooks/audio/audio.h"
 #include "hooks/audio/mme.h"
 #include "hooks/graphics/graphics.h"
+#include "misc/wintouchemu.h"
 #include "overlay/overlay.h"
 #include "touch/native/nativetouchhook.h"
 #include "util/cpuutils.h"
@@ -28,14 +31,17 @@ namespace games::gitadora {

    // settings
    bool TWOCHANNEL = false;
+    bool DISABLE_FRAME_LIMITER = false;
    std::optional<unsigned int> CAB_TYPE = std::nullopt;
    bool P1_LEFTY = false;
    bool P2_LEFTY = false;
    std::optional<std::string> SUBSCREEN_OVERLAY_SIZE;
    std::optional<socd::SocdAlgorithm> PICK_ALGO = socd::SocdAlgorithm::PreferRecent;
    std::optional<uint8_t> ARENA_WINDOW_COUNT = std::nullopt;
+    bool ARENA_TWO_HEAD_EXCLUSIVE = false;
    std::optional<std::string> ASIO_DRIVER = std::nullopt;
    bool ALLOW_REALTEK_AUDIO = false;
+    bool NATIVE_TOUCH = false;

    /*
     * Prevent GitaDora from creating folders on F drive
@@ -61,6 +67,46 @@ namespace games::gitadora {

        return CreateDirectoryA(lpPathName, lpSecurityAttributes);
    }
+
+    // libshare-pj paces mainloop with separate 12 ms and 16 ms waits. these waits
+    // interfere with the game's normal display synchronization on modern Windows
+    // and can hold a nominal 60 FPS game near 58 FPS. locate the instruction
+    // sequences at runtime so the fix does not depend on per-version file offsets.
+    static void disable_mainloop_frame_limiter(HMODULE sharepj_module) {
+        if (!sharepj_module) {
+            return;
+        }
+
+        // both limiters have the same shape, only the millisecond target xx differs
+        // (0Ch for the 12 ms limiter, 10h for the 16 ms one):
+        //
+        // 48 83 F8 xx:     cmp rax, xx;   compare elapsed frame time with the target
+        // 73 10:           jae +10h;      skip the wait once the target has elapsed
+        // B9 xx 00 00 00:  mov ecx, xx;   load the target
+        // 48 2B C8:        sub rcx, rax;  calculate the remaining wait time
+        // 74 06:           je +6h;        skip the following six-byte Sleep call if no wait remains
+        //
+        // changing jae (73h) to jmp (EBh) makes each block always take its existing
+        // skip path, which bypasses only the associated Sleep call and leaves the 10h
+        // branch displacement and every other wait untouched.
+        const auto limiter_12ms_disabled = replace_pattern(
+                sharepj_module,
+                "4883F80C7310B90C000000482BC87406",
+                "????????EB??????????????????????", 0, 0);
+        const auto limiter_16ms_disabled = replace_pattern(
+                sharepj_module,
+                "4883F8107310B910000000482BC87406",
+                "????????EB??????????????????????", 0, 0);
+
+        if (!limiter_12ms_disabled || !limiter_16ms_disabled) {
+            log_fatal(
+                "gitadora",
+                "failed to disable libshare-pj mainloop frame limiter (-gdnoframelimiter), ensure patch is not already applied");
+            return;
+        }
+
+        log_info("gitadora", "successfully disabled libshare-pj mainloop frame limiter (-gdnoframelimiter)");
+    }
 #endif

    /*
@@ -270,9 +316,21 @@ namespace games::gitadora {
                        break;
                    case 2:
                        if (!GRAPHICS_WINDOWED) {
-                            log_fatal(
+                            if (D3D9_ADAPTER.has_value()) {
+                                log_fatal(
+                                    "gitadora",
+                                    "arena model: fullscreen two-window mode cannot use -monitor; "
+                                    "use -w for borderless windows instead");
+                            }
+                            ARENA_TWO_HEAD_EXCLUSIVE = true;
+                            log_info(
                                "gitadora",
-                                "arena model: 2-window mode is not supported in fullscreen, choose 1 or 4");
+                                "arena model: native two-head fullscreen adapter-group mode "
+                                "(MAIN + SMALL; LEFT/RIGHT are virtual)");
+                        } else {
+                            log_info(
+                                "gitadora",
+                                "arena model: two-window mode uses windowed rendering");
                        }
                        log_info("gitadora", "arena model: two-window mode");
                        GRAPHICS_GITADORA_HIDE_SIDE_WINDOWS = true;
@@ -298,10 +356,18 @@ namespace games::gitadora {
    static decltype(QueryDisplayConfig) *QueryDisplayConfig_orig = nullptr;
    static decltype(DisplayConfigGetDeviceInfo) *DisplayConfigGetDeviceInfo_orig = nullptr;

-    // cached primary real monitor: its path + source/target mode entries.
-    // modeInfoIdx values on the path are renumbered to 0 / 1 so the cache is self-contained.
+    // Cached real monitor paths and their source/target mode entries. modeInfoIdx values are
+    // renumbered so the cache is self-contained. The normal single-head emulation keeps only
+    // MAIN; the two-head adapter-group mode keeps MAIN and SMALL as real heads.
    static DISPLAYCONFIG_PATH_INFO real_primary_path = {};
    static DISPLAYCONFIG_MODE_INFO real_primary_modes[2] = {}; // [0]=source, [1]=target
+    static DISPLAYCONFIG_PATH_INFO real_small_path = {};
+    static DISPLAYCONFIG_MODE_INFO real_small_modes[2] = {}; // [0]=source, [1]=target
+    static bool real_small_path_available = false;
+
+    static bool is_two_head_exclusive() {
+        return ARENA_TWO_HEAD_EXCLUSIVE && !GRAPHICS_WINDOWED;
+    }

    // fake monitors appended after the real ones. the game classifies monitors
    // by outputTechnology + connectorInstance:
@@ -325,12 +391,31 @@ namespace games::gitadora {
    // adapter to a swap chain role via its DisplayConfig connector instance,
    // so the entries here must be listed in the same order the wrapper enumerates
    // them: id=1 -> adapter 1 -> left, id=2 -> adapter 2 -> right, id=3 -> adapter 3 -> small.
-    static constexpr FakeMonitor FAKE_MONITORS[] = {
+    // Normal single-head emulation: every non-MAIN role is fake.
+    static constexpr FakeMonitor FAKE_MONITORS_SINGLE_HEAD[] = {
        { 1, 1080, 1920, -100000, -100000, 0 }, // left  (DP connector instance 0)
        { 2, 1080, 1920, -200000, -200000, 1 }, // right (DP connector instance 1)
        { 3,  800, 1280, -300000, -300000, 2 }, // small (DP connector instance 2, touch)
    };
-    static constexpr UINT32 FAKE_MONITOR_COUNT = static_cast<UINT32>(std::size(FAKE_MONITORS));
+
+    // Two-head fullscreen: adapters 0/1 are the real MAIN/SMALL group heads.
+    // Keep only LEFT/RIGHT fake, with their adapter ids matching the D3D9 wrapper.
+    static constexpr FakeMonitor FAKE_MONITORS_TWO_HEAD[] = {
+        { 2, 1080, 1920, -200000, -200000, 0 }, // left  (DP connector instance 0)
+        { 3, 1080, 1920, -300000, -300000, 1 }, // right (DP connector instance 1)
+    };
+
+    static std::span<const FakeMonitor> get_fake_monitors() {
+        if (is_two_head_exclusive()) {
+            return FAKE_MONITORS_TWO_HEAD;
+        }
+
+        return FAKE_MONITORS_SINGLE_HEAD;
+    }
+
+    static UINT32 real_monitor_count() {
+        return is_two_head_exclusive() ? 2 : 1;
+    }

    // call QueryDisplayConfig once, keep only the primary monitor's path and its
    // two referenced modes (source + target). modeInfoIdx values are rewritten to
@@ -368,13 +453,55 @@ namespace games::gitadora {
            log_fatal("gitadora", "cache_primary_monitor_info: no primary monitor found");
        }

+        if (primary->targetInfo.modeInfoIdx >= all_modes.size()) {
+            log_fatal("gitadora", "cache_primary_monitor_info: primary target mode is missing");
+        }
+
        real_primary_modes[0] = all_modes[primary->sourceInfo.modeInfoIdx];
        real_primary_modes[1] = all_modes[primary->targetInfo.modeInfoIdx];
        real_primary_path = *primary;
        real_primary_path.sourceInfo.modeInfoIdx = 0;
        real_primary_path.targetInfo.modeInfoIdx = 1;

-        log_info("gitadora", "cache_primary_monitor_info: cached primary monitor");
+        real_small_path_available = false;
+        if (is_two_head_exclusive()) {
+            if (all_paths.size() != 2) {
+                log_fatal(
+                    "gitadora",
+                    "two-head fullscreen mode requires exactly two active display paths, found {}",
+                    all_paths.size());
+            }
+
+            const auto secondary = std::find_if(all_paths.begin(), all_paths.end(),
+                [&](const auto &p) {
+                    return &p != &*primary;
+                });
+            if (secondary == all_paths.end() ||
+                    secondary->sourceInfo.modeInfoIdx >= all_modes.size() ||
+                    secondary->targetInfo.modeInfoIdx >= all_modes.size()) {
+                log_fatal("gitadora", "could not identify the physical SMALL monitor");
+            }
+            const LUID primary_adapter = primary->sourceInfo.adapterId;
+            const LUID secondary_adapter = secondary->sourceInfo.adapterId;
+            const bool same_adapter = primary_adapter.HighPart == secondary_adapter.HighPart &&
+                primary_adapter.LowPart == secondary_adapter.LowPart;
+            if (!same_adapter) {
+                log_fatal(
+                    "gitadora",
+                    "MAIN and SMALL must use the same display adapter");
+            }
+
+            real_small_modes[0] = all_modes[secondary->sourceInfo.modeInfoIdx];
+            real_small_modes[1] = all_modes[secondary->targetInfo.modeInfoIdx];
+            real_small_path = *secondary;
+            real_small_path.sourceInfo.modeInfoIdx = 2;
+            real_small_path.targetInfo.modeInfoIdx = 3;
+            real_small_path_available = true;
+
+            log_info("gitadora", "cache_primary_monitor_info: cached real MAIN and SMALL monitors");
+        } else {
+            log_info("gitadora", "cache_primary_monitor_info: cached primary monitor");
+        }
    }

    static
@@ -389,33 +516,36 @@ namespace games::gitadora {
        static std::once_flag populate_once;
        std::call_once(populate_once, cache_primary_monitor_info);

-        // always report exactly 1 real + N fake monitors
-        *pNumPathArrayElements = 1 + FAKE_MONITOR_COUNT;
-        *pNumModeInfoArrayElements = 2 + FAKE_MONITOR_COUNT * 2;
+        const auto fake_monitors = get_fake_monitors();
+        const auto fake_count = static_cast<UINT32>(fake_monitors.size());
+        const UINT32 real_count = real_monitor_count();
+        *pNumPathArrayElements = real_count + fake_count;
+        *pNumModeInfoArrayElements = (real_count + fake_count) * 2;

        log_info(
            "gitadora",
-            "GetDisplayConfigBufferSizes: 1 real path + {} fake monitor(s)",
-            FAKE_MONITOR_COUNT);
+            "GetDisplayConfigBufferSizes: {} real path(s) + {} fake monitor(s)",
+            real_count,
+            fake_count);

        return ERROR_SUCCESS;
    }

-    // write fake monitor i into the caller's path/mode arrays. layout (single-monitor
-    // assumption): index 0 in both arrays holds the cached primary real monitor, so
-    // fake i occupies path slot (1 + i) and mode slots (2 + i*2) / (2 + i*2 + 1).
+    // Write a fake monitor after the real paths. The cache is packed as [source, target]
+    // mode pairs, so each path consumes two mode entries.
    static void insert_fake_monitor(
        DISPLAYCONFIG_PATH_INFO *paths,
        DISPLAYCONFIG_MODE_INFO *modes,
-        UINT32 i)
+        const FakeMonitor &m,
+        UINT32 path_index,
+        UINT32 source_mode_index)
    {
-        const FakeMonitor &m = FAKE_MONITORS[i];
-        const UINT32 src_idx = 2 + i * 2;
+        const UINT32 src_idx = source_mode_index;
        const UINT32 tgt_idx = src_idx + 1;
        const LUID adapter_id { .LowPart = static_cast<DWORD>(-m.id), .HighPart = -m.id };
        const UINT32 uid = static_cast<UINT32>(-m.id);

-        paths[1 + i] = {
+        paths[path_index] = {
            .sourceInfo = {
                .adapterId = adapter_id,
                .id = uid,
@@ -473,21 +603,35 @@ namespace games::gitadora {
        DISPLAYCONFIG_MODE_INFO* modeInfoArray,
        DISPLAYCONFIG_TOPOLOGY_ID* currentTopologyId)
    {
-        // copy cached primary real monitor into caller buffers at index 0
+        // Copy cached real monitor paths into the caller buffers.
        pathArray[0] = real_primary_path;
        modeInfoArray[0] = real_primary_modes[0];
        modeInfoArray[1] = real_primary_modes[1];
-        *numPathArrayElements = 1 + FAKE_MONITOR_COUNT;
-        *numModeInfoArrayElements = 2 + FAKE_MONITOR_COUNT * 2;
+        if (is_two_head_exclusive() && real_small_path_available) {
+            pathArray[1] = real_small_path;
+            modeInfoArray[2] = real_small_modes[0];
+            modeInfoArray[3] = real_small_modes[1];
+        }
+
+        const auto fake_monitors = get_fake_monitors();
+        const auto fake_count = static_cast<UINT32>(fake_monitors.size());
+        const UINT32 real_count = real_monitor_count();
+        *numPathArrayElements = real_count + fake_count;
+        *numModeInfoArrayElements = (real_count + fake_count) * 2;
        if (currentTopologyId != nullptr) {
            *currentTopologyId = DISPLAYCONFIG_TOPOLOGY_EXTEND;
        }

        log_misc("gitadora", "QueryDisplayConfig returning fake monitor paths and modes");

-        // append fake monitors after the real one
-        for (UINT32 i = 0; i < FAKE_MONITOR_COUNT; i++) {
-            insert_fake_monitor(pathArray, modeInfoArray, i);
+        // Append fake monitors after the real path(s).
+        for (UINT32 i = 0; i < fake_count; i++) {
+            insert_fake_monitor(
+                pathArray,
+                modeInfoArray,
+                fake_monitors[i],
+                real_count + i,
+                real_count * 2 + i * 2);
        }

        return ERROR_SUCCESS;
@@ -518,7 +662,8 @@ namespace games::gitadora {
                const auto targetName = reinterpret_cast<DISPLAYCONFIG_TARGET_DEVICE_NAME*>(requestPacket);
                const LONG fake_id = -id;
                UINT32 conn_inst = 0xff;
-                for (const auto& f : FAKE_MONITORS) {
+                const auto fake_monitors = get_fake_monitors();
+                for (const auto &f : fake_monitors) {
                    if (f.id == fake_id) {
                        conn_inst = f.connector_instance;
                        break;
@@ -541,18 +686,27 @@ namespace games::gitadora {
            return ret;
        }

-        // override the cached primary real monitor target info to look like HDMI/0
+        // Override MAIN to HDMI/0 and retag the real second head as the DP/2 SMALL
+        // display expected by the cabinet software in two-head fullscreen mode.
        const auto targetName = reinterpret_cast<DISPLAYCONFIG_TARGET_DEVICE_NAME*>(requestPacket);
-        const auto& target = real_primary_path.targetInfo;
-        if (target.id == targetName->header.id &&
-            target.adapterId.HighPart == targetName->header.adapterId.HighPart &&
-            target.adapterId.LowPart == targetName->header.adapterId.LowPart)
-        {
+        const auto target_matches = [&](const DISPLAYCONFIG_PATH_TARGET_INFO &target) {
+            return target.id == targetName->header.id &&
+                target.adapterId.HighPart == targetName->header.adapterId.HighPart &&
+                target.adapterId.LowPart == targetName->header.adapterId.LowPart;
+        };
+        if (target_matches(real_primary_path.targetInfo)) {
            targetName->outputTechnology = DISPLAYCONFIG_OUTPUT_TECHNOLOGY_HDMI;
            targetName->connectorInstance = 0;
            log_info("gitadora",
                "overriding primary monitor (id={}) to pretend to be HDMI",
                targetName->header.id);
+        } else if (is_two_head_exclusive() && real_small_path_available &&
+                target_matches(real_small_path.targetInfo)) {
+            targetName->outputTechnology = DISPLAYCONFIG_OUTPUT_TECHNOLOGY_DISPLAYPORT_EXTERNAL;
+            targetName->connectorInstance = 2;
+            log_info("gitadora",
+                "overriding secondary monitor (id={}) to pretend to be SMALL DP/2",
+                targetName->header.id);
        }
        return ret;
    }
@@ -575,6 +729,12 @@ namespace games::gitadora {
        HMODULE system_module = libutils::try_module("libsystem.dll");

        // patches
+#ifdef SPICE64
+        if (DISABLE_FRAME_LIMITER && !is_arena_model()) {
+            disable_mainloop_frame_limiter(sharepj_module);
+        }
+#endif
+
        detour::inline_hook((void *) eam_network_detected_ip_change, libutils::try_proc(
                sharepj_module, "eam_network_detected_ip_change"));
        detour::inline_hook((void *) eam_network_settings_conflict, libutils::try_proc(
@@ -650,29 +810,38 @@ namespace games::gitadora {
                hooks::audio::INJECT_FAKE_REALTEK_AUDIO = true;
            }

-            // monitor/touch hooks (windowed or full screen)
-            if (GRAPHICS_PREVENT_SECONDARY_WINDOWS) {
-                // enable touch hook for subscreen overlay
+            // touch injection drives mouse-as-touch and API touch for the subscreen,
+            // no matter whether it is drawn by the overlay (single-window mode) or by
+            // the dedicated SMALL window
+            NATIVE_TOUCH = !wintouchemu::FORCE &&
                nativetouch::hook(avs::game::DLL_INSTANCE);
+            if (!NATIVE_TOUCH && GRAPHICS_PREVENT_SECONDARY_WINDOWS) {
+                // the legacy fallback can only feed the subscreen overlay
+                wintouchemu::FORCE = true;
+                wintouchemu::INJECT_MOUSE_AS_WM_TOUCH = true;
+                wintouchemu::hook("GITADORA", avs::game::DLL_INSTANCE);
+            }

 #if !SPICE_XP

-                if (!GRAPHICS_WINDOWED) {
-                    // monitor hook: always pretend to have 1 primary real monitor + 3 fake monitors
-                    // (LEFT / RIGHT / SMALL) so the game accepts the arena cab topology
-                    GetDisplayConfigBufferSizes_orig =
-                        detour::iat_try("GetDisplayConfigBufferSizes",
-                            GetDisplayConfigBufferSizes_hook, avs::game::DLL_INSTANCE);
-                    QueryDisplayConfig_orig =
-                        detour::iat_try("QueryDisplayConfig",
-                            QueryDisplayConfig_hook, avs::game::DLL_INSTANCE);
-                    DisplayConfigGetDeviceInfo_orig =
-                        detour::iat_try("DisplayConfigGetDeviceInfo",
-                            DisplayConfigGetDeviceInfo_hook, avs::game::DLL_INSTANCE);
+            if (!GRAPHICS_WINDOWED &&
+                    (GRAPHICS_PREVENT_SECONDARY_WINDOWS || ARENA_TWO_HEAD_EXCLUSIVE)) {
+                if (ARENA_TWO_HEAD_EXCLUSIVE) {
+                    log_info(
+                        "gitadora",
+                        "exposing physical MAIN/SMALL and virtual LEFT/RIGHT");
                }
-#endif
-
+                GetDisplayConfigBufferSizes_orig =
+                    detour::iat_try("GetDisplayConfigBufferSizes",
+                        GetDisplayConfigBufferSizes_hook, avs::game::DLL_INSTANCE);
+                QueryDisplayConfig_orig =
+                    detour::iat_try("QueryDisplayConfig",
+                        QueryDisplayConfig_hook, avs::game::DLL_INSTANCE);
+                DisplayConfigGetDeviceInfo_orig =
+                    detour::iat_try("DisplayConfigGetDeviceInfo",
+                        DisplayConfigGetDeviceInfo_hook, avs::game::DLL_INSTANCE);
            }
+#endif
        }

        // window patch
@@ -13,14 +13,21 @@ namespace games::gitadora {

    // settings
    extern bool TWOCHANNEL;
+    extern bool DISABLE_FRAME_LIMITER;
    extern std::optional<unsigned int> CAB_TYPE;
    extern bool P1_LEFTY;
    extern bool P2_LEFTY;
    extern std::optional<std::string> SUBSCREEN_OVERLAY_SIZE;
    extern std::optional<socd::SocdAlgorithm> PICK_ALGO;
    extern std::optional<uint8_t> ARENA_WINDOW_COUNT;
+    extern bool ARENA_TWO_HEAD_EXCLUSIVE;
    extern std::optional<std::string> ASIO_DRIVER;
    extern bool ALLOW_REALTEK_AUDIO;
+    extern bool NATIVE_TOUCH;
+
+    // arena SMALL subscreen (touch panel) resolution
+    static constexpr int ARENA_SUBSCREEN_WIDTH = 800;
+    static constexpr int ARENA_SUBSCREEN_HEIGHT = 1280;

    class GitaDoraGame : public games::Game {
    public:
@@ -3,6 +3,7 @@
 #if SPICE64

 #include <cstdint>
+#include "api/client.h"
 #include "util/detour.h"
 #include "util/logging.h"
 #include "util/utils.h"
@@ -443,10 +444,12 @@ namespace games::iidx {
            GameAPI::Lights::writeLight(RI_MGR, lights[map.index_g], rgb.g);
            GameAPI::Lights::writeLight(RI_MGR, lights[map.index_b], rgb.b);

-            for (unsigned int i = 0; i < data_size; ++i) {
-                map.data[i].r = data[i * 3];
-                map.data[i].g = data[i * 3 + 1];
-                map.data[i].b = data[i * 3 + 2];
+            if (api::has_clients()) {
+                for (size_t i = 0; i < data_size; ++i) {
+                    map.data[i].r = data[i * 3];
+                    map.data[i].g = data[i * 3 + 1];
+                    map.data[i].b = data[i * 3 + 2];
+                }
            }
        }

@@ -534,7 +534,7 @@ namespace games::iidx {
                        if (mediaTypePointer && mediaTypePointer->IsString()) {
                            std::string mediaType = mediaTypePointer->GetString();
                            if (mediaType.length() > 0) {
-                                camera->m_selectedMediaTypeDescription = mediaType;
+                                camera->SetSelectedMediaTypeDescription(mediaType);
                                camera->m_useAutoMediaType = false;
                            } else {
                                camera->m_useAutoMediaType = true;
@@ -547,7 +547,7 @@ namespace games::iidx {
                            std::string drawModeString = drawModePointer->GetString();
                            for (int j = 0; j < DRAW_MODE_SIZE; j++) {
                                if (DRAW_MODE_LABELS[j].compare(drawModeString) == 0) {
-                                    camera->m_drawMode = (LocalCameraDrawMode) j;
+                                    camera->m_drawMode.store((LocalCameraDrawMode) j);
                                    break;
                                }
                            }
@@ -556,12 +556,12 @@ namespace games::iidx {
                        // Flip
                        auto flipHorizontalPointer = rapidjson::Pointer(root + "/" + symLink + "/FlipHorizontal").Get(doc);
                        if (flipHorizontalPointer && flipHorizontalPointer->IsBool()) {
-                            camera->m_flipHorizontal = flipHorizontalPointer->GetBool();
+                            camera->m_flipHorizontal.store(flipHorizontalPointer->GetBool());
                        }

                        auto flipVerticalPointer = rapidjson::Pointer(root + "/" + symLink + "/FlipVertical").Get(doc);
                        if (flipVerticalPointer && flipVerticalPointer->IsBool()) {
-                            camera->m_flipVertical = flipVerticalPointer->GetBool();
+                            camera->m_flipVertical.store(flipVerticalPointer->GetBool());
                        }

                        // Allow manual control
@@ -625,15 +625,17 @@ namespace games::iidx {
            if (camera->m_useAutoMediaType) {
                rapidjson::Pointer(root + "MediaType").Set(doc, "");
            } else {
-                rapidjson::Pointer(root + "MediaType").Set(doc, camera->m_selectedMediaTypeDescription);
+                const auto mediaTypeDescription = camera->GetSelectedMediaTypeDescription();
+                rapidjson::Pointer(root + "MediaType").Set(doc, mediaTypeDescription);
            }

            // Draw Mode
-            rapidjson::Pointer(root + "DrawMode").Set(doc, DRAW_MODE_LABELS[camera->m_drawMode]);
+            const auto drawMode = camera->m_drawMode.load();
+            rapidjson::Pointer(root + "DrawMode").Set(doc, DRAW_MODE_LABELS[drawMode]);

            // Flip
-            rapidjson::Pointer(root + "FlipHorizontal").Set(doc, camera->m_flipHorizontal);
-            rapidjson::Pointer(root + "FlipVertical").Set(doc, camera->m_flipVertical);
+            rapidjson::Pointer(root + "FlipHorizontal").Set(doc, camera->m_flipHorizontal.load());
+            rapidjson::Pointer(root + "FlipVertical").Set(doc, camera->m_flipVertical.load());

            // Manual control
            rapidjson::Pointer(root + "AllowManualControl").Set(doc, camera->m_allowManualControl);
@@ -22,6 +22,7 @@
 #include "touch/touch.h"
 #include "touch/native/nativetouchhook.h"
 #include "misc/eamuse.h"
+#include "misc/wintouchemu.h"
 #include "util/detour.h"
 #include "util/deferlog.h"
 #include "util/fileutils.h"
@@ -40,6 +41,7 @@
 #include "bi2x_hook.h"
 #include "ezusb.h"
 #include "io.h"
+#include "poke.h"

 static decltype(RegCloseKey) *RegCloseKey_orig = nullptr;
 static decltype(RegEnumKeyA) *RegEnumKeyA_orig = nullptr;
@@ -56,12 +58,14 @@ namespace games::iidx {

    // settings
    bool FLIP_CAMS = false;
-    std::optional<bool> DISABLE_CAMS;
+    cab_camera_access_mode CAB_CAMERA_ACCESS = cab_camera_access_mode::automatic;
    bool TDJ_CAMERA = false;
    bool TDJ_CAMERA_PREFER_16_9 = true;
    bool TDJ_MODE = false;
    bool FORCE_720P = false;
    bool DISABLE_ESPEC_IO = false;
+    bool NATIVE_TOUCH = true;
+    bool ENABLE_POKE = false;
    std::optional<std::string> SOUND_OUTPUT_DEVICE = std::nullopt;
    std::optional<std::string> SOUND_OUTPUT_DEVICE_IN_EFFECT = std::nullopt;
    std::optional<std::string> ASIO_DRIVER = std::nullopt;
@@ -275,6 +279,26 @@ namespace games::iidx {
        return nullptr;
    }

+    // best-effort read of a TDJ ROM file to determine if the game is running in TDJ mode
+    //
+    // these paths are not emulated - they hit whatever is actually mounted at that drive letter.
+    // an empty optical or removable drive raises the modal "insert a disk" error (the launcher
+    // clears SEM_FAILCRITICALERRORS process-wide) and a downed network drive stalls on redirector
+    // timeouts, so only probe what a TDJ cabinet would actually be laid out on.
+    // drive_path must be absolute and start with a drive letter.
+    static bool tdj_rom_matches(const char *drive_path, const char *expected) {
+        const wchar_t root[] = { (wchar_t) drive_path[0], L':', L'\\', L'\0' };
+        const auto drive_type = GetDriveTypeW(root);
+
+        if (drive_type != DRIVE_FIXED && drive_type != DRIVE_RAMDISK) {
+            log_misc("iidx", "not probing '{}' for TDJ, not a local disk (drive type {})",
+                    drive_path, drive_type);
+            return false;
+        }
+
+        return fileutils::text_read(drive_path) == expected;
+    }
+
 #endif

    IIDXGame::IIDXGame() : Game("Beatmania IIDX") {
@@ -335,8 +359,10 @@ namespace games::iidx {
            HAS_LIBAIO = true;

            // check TDJ mode
-            TDJ_MODE |= fileutils::text_read("C:\\000rom.txt") == "TDJ-JA";
-            TDJ_MODE |= fileutils::text_read("D:\\001rom.txt") == "TDJ";
+            if (!TDJ_MODE) {
+                TDJ_MODE = tdj_rom_matches("C:\\000rom.txt", "TDJ-JA")
+                        || tdj_rom_matches("D:\\001rom.txt", "TDJ");
+            }

            // force TDJ mode
            if (TDJ_MODE) {
@@ -348,7 +374,16 @@ namespace games::iidx {
                // need to hook `avs2-core.dll` so AVS win32fs operations go through rom hook
                devicehook_init(avs::core::DLL_INSTANCE);

-                nativetouch::hook(avs::game::DLL_INSTANCE);
+                NATIVE_TOUCH = !wintouchemu::FORCE &&
+                    nativetouch::hook(avs::game::DLL_INSTANCE);
+                if (!NATIVE_TOUCH) {
+                    wintouchemu::FORCE = true;
+                    wintouchemu::INJECT_MOUSE_AS_WM_TOUCH = true;
+                    wintouchemu::hook_title_ends(
+                        "beatmania IIDX",
+                        "main",
+                        avs::game::DLL_INSTANCE);
+                }
            }

            // insert BI2X hooks
@@ -411,10 +446,7 @@ namespace games::iidx {
                "RegQueryValueExA", RegQueryValueExA_hook, avs::game::DLL_INSTANCE);

        // check if cam hook should be enabled
-        if (!DISABLE_CAMS.has_value()) {
-            log_fatal("iidx", "assertion failure - DISABLE_CAMS not set during attach");
-        }
-        if (!DISABLE_CAMS.value()) {
+        if (CAB_CAMERA_ACCESS == cab_camera_access_mode::legacy) {
            init_legacy_camera_hook(FLIP_CAMS);
        }

@@ -441,19 +473,10 @@ namespace games::iidx {
            SetEnvironmentVariable("SCREEN_MODE", SCREEN_MODE.value().c_str());
        }

-        // check for cab camera access for the second time (first time was in launcher.cpp)
-        // this time, we are inside -iidx module hook, which means the user is likely NOT on a cab
-        // therefore, start with cams OFF by default, and allow user to forcibly override to ON
-        if (!games::iidx::DISABLE_CAMS.has_value()) {
-            games::iidx::DISABLE_CAMS = true;
-            if (options->at(launcher::Options::IIDXCabCamAccess).is_active() &&
-                options->at(launcher::Options::IIDXCabCamAccess).value_text() == "on") {
-                games::iidx::DISABLE_CAMS = false;
-            }
-            if (games::iidx::DISABLE_CAMS.value()) {
-                log_misc("iidx", "CONNECT_CAMERA env var set to 0");
-                SetEnvironmentVariable("CONNECT_CAMERA", "0");
-            }
+        // auto with iidx module means turn off camera (non-cab use)
+        if (CAB_CAMERA_ACCESS == cab_camera_access_mode::automatic) {
+            log_misc("iidx", "CONNECT_CAMERA env var set to 0");
+            SetEnvironmentVariable("CONNECT_CAMERA", "0");
        }

        // windowed subscreen, enabled by default, unless turned off by user
@@ -525,6 +548,12 @@ namespace games::iidx {
        }
    }

+    void IIDXGame::post_attach() {
+        if (ENABLE_POKE) {
+            poke::enable();
+        }
+    }
+
    void IIDXGame::detach() {
        Game::detach();

@@ -11,6 +11,13 @@

 namespace games::iidx {

+    enum class cab_camera_access_mode {
+        automatic,
+        off,
+        on,
+        legacy,
+    };
+
    enum class iidx_aio_emulation_state {
        unknown,
        bi2a_com2,
@@ -20,7 +27,7 @@ namespace games::iidx {
    // settings

    extern bool FLIP_CAMS;
-    extern std::optional<bool> DISABLE_CAMS;
+    extern cab_camera_access_mode CAB_CAMERA_ACCESS;
    extern bool TDJ_CAMERA;
    extern bool TDJ_CAMERA_PREFER_16_9;
    extern std::optional<std::string> TDJ_CAMERA_OVERRIDE;
@@ -28,6 +35,8 @@ namespace games::iidx {
    extern bool TDJ_MODE;
    extern bool FORCE_720P;
    extern bool DISABLE_ESPEC_IO;
+    extern bool NATIVE_TOUCH;
+    extern bool ENABLE_POKE;
    extern std::optional<std::string> SOUND_OUTPUT_DEVICE;
    extern std::optional<std::string> ASIO_DRIVER;
    extern uint8_t DIGITAL_TT_SENS;
@@ -52,6 +61,7 @@ namespace games::iidx {

        virtual void attach() override;
        virtual void pre_attach() override;
+        virtual void post_attach() override;
        virtual void detach() override;

    private:
@@ -2,6 +2,7 @@

 #if SPICE64 && !SPICE_XP

+#include <atomic>
 #include <d3d9.h>
 #include <dxva2api.h>
 #include <mutex>
@@ -66,6 +67,8 @@ extern std::string CAMERA_CONTROL_LABELS[];
 extern std::string DRAW_MODE_LABELS[];

 namespace games::iidx {
+    class IIDXCameraSourceReaderCallback;
+
    namespace Camera {
        struct PlayVideoCamera {
            IDirect3DTexture9** d3d9_texture(const uintptr_t offset) {
@@ -87,7 +90,7 @@ namespace games::iidx {

    class IIDXLocalCamera {
    protected:
-        virtual ~IIDXLocalCamera() {};
+        virtual ~IIDXLocalCamera();

        LONG m_nRefCount;
        CRITICAL_SECTION m_critsec;
@@ -101,9 +104,14 @@ namespace games::iidx {
        // For reading frames from Camera
        IMFMediaSource *m_pSource = nullptr;
        IMFSourceReader *m_pSourceReader = nullptr;
+        IMFSourceReaderEx *m_pSourceReaderEx = nullptr;
+        IIDXCameraSourceReaderCallback *m_pSourceReaderCallback = nullptr;
+        std::mutex m_mediaTypeMutex;
+        IMFMediaType *m_pendingMediaType = nullptr;
+        int m_selectedMediaTypeIndex = 0;
+        std::string m_selectedMediaTypeDescription = "";

        // Camera Format information
-        double                  m_frameRate = 0;
        LONG                    m_cameraWidth;
        LONG                    m_cameraHeight;

@@ -129,6 +137,12 @@ namespace games::iidx {
        LPDIRECT3DTEXTURE9 m_conversionTexture = nullptr;
        IDirect3DSurface9 *m_pConversionSurf = nullptr;

+        // upload surface for decoded camera frames returned in system memory
+        IDirect3DSurface9 *m_pDecodedSurf = nullptr;
+        GUID m_decodedSubtype = GUID_NULL;
+        GUID m_outputSubtype = GUID_NULL;
+        bool m_drawErrorLogged = false;
+
        // Texture for custom transform (e.g. horizontal flip)
        LPDIRECT3DTEXTURE9 m_transformTexture = nullptr;
        IDirect3DSurface9 *m_pTransformSurf = nullptr;
@@ -153,21 +167,19 @@ namespace games::iidx {
        BOOL m_initialized = false;

        // True if all the setup steps succeeded
-        BOOL m_active = false;
+        std::atomic_bool m_active = false;

        // Media type select
        std::vector<MediaTypeInfo> m_mediaTypeInfos = {};
-        int m_selectedMediaTypeIndex = 0;
        bool m_useAutoMediaType = true;
        IMFMediaType *m_pAutoMediaType = nullptr;
-        std::string m_selectedMediaTypeDescription = "";
        bool m_allowManualControl = false;

-        LocalCameraDrawMode m_drawMode = DrawModeCrop4_3;
+        std::atomic<LocalCameraDrawMode> m_drawMode = DrawModeCrop4_3;

        // Render processing
-        bool m_flipHorizontal = false;
-        bool m_flipVertical = false;
+        std::atomic_bool m_flipHorizontal = false;
+        std::atomic_bool m_flipVertical = false;

        IIDXLocalCamera(
            std::string name,
@@ -184,11 +196,14 @@ namespace games::iidx {
        HRESULT GetCameraControlProp(int index, CameraControlProp *pProp);
        HRESULT SetCameraControlProp(int index, long value, long flags);
        HRESULT ResetCameraControlProps();
-        HRESULT FlushDrawCommands();
        std::string GetName();
        std::string GetFriendlyName();
        std::string GetSymLink();
+        int GetSelectedMediaTypeIndex();
+        std::string GetSelectedMediaTypeDescription();
+        void SetSelectedMediaTypeDescription(const std::string &description);
        HRESULT ChangeMediaType(IMFMediaType *pType);
+        void RequestMediaType(IMFMediaType *pType);
        HRESULT StartCapture();
        void UpdateDrawRect();

@@ -197,12 +212,22 @@ namespace games::iidx {
        void CreateThread();
        MediaTypeInfo GetMediaTypeInfo(IMFMediaType *pType);
        std::string GetVideoFormatName(GUID subtype);
-        HRESULT TryMediaType(IMFMediaType *pType, UINT32 *pBestWidth, double *pBestFrameRate);
+        static bool CompareMediaTypes(const MediaTypeInfo &a, const MediaTypeInfo &b);
+        bool MatchesPreferredAspect(const MediaTypeInfo &info) const;
+        static bool IsBetterAutoType(const MediaTypeInfo &candidate, const MediaTypeInfo &current);
+        IMFMediaType *FindBestNativeAutoType(bool requirePreferredAspect) const;
+        IMFMediaType *FindBestAutoType(const GUID &subtype, bool requirePreferredAspect) const;
+        HRESULT ValidateMediaType(IMFMediaType *pType);
        HRESULT InitTargetTexture();
+        HRESULT EnsureTransformTextures();
        HRESULT InitCameraControl();
+        void SetSelectedMediaType(int index, const std::string &description);
+        bool HasPendingMediaType();
+        HRESULT ApplyPendingMediaType();
+        HRESULT UploadDecodedSample(IMFMediaBuffer *pSrcBuffer);
        HRESULT DrawSample(IMFMediaBuffer *pSrcBuffer);
        HRESULT ReadSample();
-        LPDIRECT3DTEXTURE9 Render();
+        HRESULT Render();
    };
 }

@@ -1,116 +1,132 @@
-#include "mf_wrappers.h"
-#include "util/libutils.h"
-#include "util/logging.h"
-
-namespace games::iidx {
-
-    static bool INITIALIZED = false;
-
-    static HMODULE mf_dll = nullptr;
-    static HMODULE mfreadwrite_dll = nullptr;
-    static HMODULE mfplat_dll = nullptr;
-
-    typedef HRESULT (__stdcall * MFCreateAttributes_t)(
-        _Out_ IMFAttributes** ppMFAttributes,
-        _In_ UINT32 cInitialSize
-        );
-
-    typedef HRESULT (__stdcall * MFEnumDeviceSources_t)(
-        _In_ IMFAttributes* pAttributes,
-        _Outptr_result_buffer_(*pcSourceActivate) IMFActivate*** pppSourceActivate,
-        _Out_ UINT32* pcSourceActivate
-        );
-
-    typedef HRESULT (__stdcall * MFCreateSourceReaderFromMediaSource_t)(
-        _In_ IMFMediaSource *pMediaSource,
-        _In_opt_ IMFAttributes *pAttributes,
-        _Out_ IMFSourceReader **ppSourceReader
-        );
-
-    typedef HRESULT (__stdcall * MFGetService_t)(
-        IUnknown* punkObject,
-        REFGUID guidService,
-        REFIID riid,
-        _Outptr_ LPVOID* ppvObject
-        );
-
-    static MFCreateAttributes_t MFCreateAttributes = nullptr;
-    static MFEnumDeviceSources_t MFEnumDeviceSources = nullptr;
-    static MFCreateSourceReaderFromMediaSource_t MFCreateSourceReaderFromMediaSource = nullptr;
-    static MFGetService_t MFGetService = nullptr;
-
-    void init_mf_library() {
-
-        // why was all of this needed?
-        //
-        // when iidx camhook was initially implemented, we linked to mf.lib, mfreadwrite.lib, and mfplat.lib
-        // this made Unity-based really unhappy, causing them to skip over the logic that loads mf library
-        // causing videos to not play ("Initializing Microsoft Media Foundation failed." in the cmd prompt)
-        //
-        // as a result, the static linking to mf libs were removed, and we are now doing the mess that is this file
-
-        if (INITIALIZED) {
-            return;
-        }
-        INITIALIZED = true;
-
-        log_misc("mf_wrappers", "creating delay-loaded wrappers for MF routines - BEGIN");
-
-        mf_dll = libutils::load_library("mf.dll", true);
-        mfreadwrite_dll = libutils::load_library("mfreadwrite.dll", true);
-        mfplat_dll = libutils::load_library("mfplat.dll", true);
-
-        MFCreateAttributes = (MFCreateAttributes_t)
-            libutils::get_proc(mfplat_dll, "MFCreateAttributes");
-        if (!MFCreateAttributes) {
-            log_fatal("mf_wrappers", "MFCreateAttributes failed to hook");
-        }
-
-        MFEnumDeviceSources = (MFEnumDeviceSources_t)
-            libutils::get_proc(mf_dll, "MFEnumDeviceSources");
-        if (!MFEnumDeviceSources) {
-            log_fatal("mf_wrappers", "MFEnumDeviceSources failed to hook");
-        }
-
-        MFCreateSourceReaderFromMediaSource = (MFCreateSourceReaderFromMediaSource_t)
-            libutils::get_proc(mfreadwrite_dll, "MFCreateSourceReaderFromMediaSource");
-        if (!MFCreateSourceReaderFromMediaSource) {
-            log_fatal("mf_wrappers", "MFCreateSourceReaderFromMediaSource failed to hook");
-        }
-
-        MFGetService = (MFGetService_t)libutils::get_proc(mf_dll, "MFGetService");
-        if (!MFGetService) {
-            log_fatal("mf_wrappers", "MFGetService failed to hook");
-        }
-
-        log_misc("mf_wrappers", "creating delay-loaded wrappers for MF routines - DONE");
-    }
-
-    HRESULT WrappedMFCreateAttributes (
-        _Out_ IMFAttributes** ppMFAttributes,
-        _In_ UINT32 cInitialSize) {
-        return MFCreateAttributes(ppMFAttributes, cInitialSize);
-    }
-
-    HRESULT WrappedMFEnumDeviceSources (
-        _In_ IMFAttributes* pAttributes,
-        _Outptr_result_buffer_(*pcSourceActivate) IMFActivate*** pppSourceActivate,
-        _Out_ UINT32* pcSourceActivate) {
-        return MFEnumDeviceSources(pAttributes, pppSourceActivate, pcSourceActivate);
-    }
-
-    HRESULT WrappedMFCreateSourceReaderFromMediaSource (
-        _In_ IMFMediaSource *pMediaSource,
-        _In_opt_ IMFAttributes *pAttributes,
-        _Out_ IMFSourceReader **ppSourceReader) {
-        return MFCreateSourceReaderFromMediaSource(pMediaSource, pAttributes, ppSourceReader);
-    }
-
-    HRESULT WrappedMFGetService (
-        IUnknown* punkObject,
-        REFGUID guidService,
-        REFIID riid,
-        _Outptr_ LPVOID* ppvObject) {
-        return MFGetService(punkObject, guidService, riid, ppvObject);
-    }
+#include "mf_wrappers.h"
+#include "util/libutils.h"
+#include "util/logging.h"
+
+namespace games::iidx {
+
+    static bool INITIALIZED = false;
+
+    static HMODULE mf_dll = nullptr;
+    static HMODULE mfreadwrite_dll = nullptr;
+    static HMODULE mfplat_dll = nullptr;
+
+    typedef HRESULT (__stdcall * MFCreateAttributes_t)(
+        _Out_ IMFAttributes** ppMFAttributes,
+        _In_ UINT32 cInitialSize
+        );
+
+    typedef HRESULT (__stdcall * MFCreateMediaType_t)(
+        _Out_ IMFMediaType** ppMFType
+        );
+
+    typedef HRESULT (__stdcall * MFEnumDeviceSources_t)(
+        _In_ IMFAttributes* pAttributes,
+        _Outptr_result_buffer_(*pcSourceActivate) IMFActivate*** pppSourceActivate,
+        _Out_ UINT32* pcSourceActivate
+        );
+
+    typedef HRESULT (__stdcall * MFCreateSourceReaderFromMediaSource_t)(
+        _In_ IMFMediaSource *pMediaSource,
+        _In_opt_ IMFAttributes *pAttributes,
+        _Out_ IMFSourceReader **ppSourceReader
+        );
+
+    typedef HRESULT (__stdcall * MFGetService_t)(
+        IUnknown* punkObject,
+        REFGUID guidService,
+        REFIID riid,
+        _Outptr_ LPVOID* ppvObject
+        );
+
+    static MFCreateAttributes_t MFCreateAttributes = nullptr;
+    static MFCreateMediaType_t MFCreateMediaType = nullptr;
+    static MFEnumDeviceSources_t MFEnumDeviceSources = nullptr;
+    static MFCreateSourceReaderFromMediaSource_t MFCreateSourceReaderFromMediaSource = nullptr;
+    static MFGetService_t MFGetService = nullptr;
+
+    void init_mf_library() {
+
+        // why was all of this needed?
+        //
+        // when iidx camhook was initially implemented, we linked to mf.lib, mfreadwrite.lib, and mfplat.lib
+        // this made Unity-based really unhappy, causing them to skip over the logic that loads mf library
+        // causing videos to not play ("Initializing Microsoft Media Foundation failed." in the cmd prompt)
+        //
+        // as a result, the static linking to mf libs were removed, and we are now doing the mess that is this file
+
+        if (INITIALIZED) {
+            return;
+        }
+        INITIALIZED = true;
+
+        log_misc("mf_wrappers", "creating delay-loaded wrappers for MF routines - BEGIN");
+
+        mf_dll = libutils::load_library("mf.dll", true);
+        mfreadwrite_dll = libutils::load_library("mfreadwrite.dll", true);
+        mfplat_dll = libutils::load_library("mfplat.dll", true);
+
+        MFCreateAttributes = (MFCreateAttributes_t)
+            libutils::get_proc(mfplat_dll, "MFCreateAttributes");
+        if (!MFCreateAttributes) {
+            log_fatal("mf_wrappers", "MFCreateAttributes failed to hook");
+        }
+
+        MFCreateMediaType = (MFCreateMediaType_t)
+            libutils::get_proc(mfplat_dll, "MFCreateMediaType");
+        if (!MFCreateMediaType) {
+            log_fatal("mf_wrappers", "MFCreateMediaType failed to hook");
+        }
+
+        MFEnumDeviceSources = (MFEnumDeviceSources_t)
+            libutils::get_proc(mf_dll, "MFEnumDeviceSources");
+        if (!MFEnumDeviceSources) {
+            log_fatal("mf_wrappers", "MFEnumDeviceSources failed to hook");
+        }
+
+        MFCreateSourceReaderFromMediaSource = (MFCreateSourceReaderFromMediaSource_t)
+            libutils::get_proc(mfreadwrite_dll, "MFCreateSourceReaderFromMediaSource");
+        if (!MFCreateSourceReaderFromMediaSource) {
+            log_fatal("mf_wrappers", "MFCreateSourceReaderFromMediaSource failed to hook");
+        }
+
+        MFGetService = (MFGetService_t)libutils::get_proc(mf_dll, "MFGetService");
+        if (!MFGetService) {
+            log_fatal("mf_wrappers", "MFGetService failed to hook");
+        }
+
+        log_misc("mf_wrappers", "creating delay-loaded wrappers for MF routines - DONE");
+    }
+
+    HRESULT WrappedMFCreateAttributes (
+        _Out_ IMFAttributes** ppMFAttributes,
+        _In_ UINT32 cInitialSize) {
+        return MFCreateAttributes(ppMFAttributes, cInitialSize);
+    }
+
+    HRESULT WrappedMFCreateMediaType (
+        _Out_ IMFMediaType** ppMFType) {
+        return MFCreateMediaType(ppMFType);
+    }
+
+    HRESULT WrappedMFEnumDeviceSources (
+        _In_ IMFAttributes* pAttributes,
+        _Outptr_result_buffer_(*pcSourceActivate) IMFActivate*** pppSourceActivate,
+        _Out_ UINT32* pcSourceActivate) {
+        return MFEnumDeviceSources(pAttributes, pppSourceActivate, pcSourceActivate);
+    }
+
+    HRESULT WrappedMFCreateSourceReaderFromMediaSource (
+        _In_ IMFMediaSource *pMediaSource,
+        _In_opt_ IMFAttributes *pAttributes,
+        _Out_ IMFSourceReader **ppSourceReader) {
+        return MFCreateSourceReaderFromMediaSource(pMediaSource, pAttributes, ppSourceReader);
+    }
+
+    HRESULT WrappedMFGetService (
+        IUnknown* punkObject,
+        REFGUID guidService,
+        REFIID riid,
+        _Outptr_ LPVOID* ppvObject) {
+        return MFGetService(punkObject, guidService, riid, ppvObject);
+    }
 }
@@ -1,30 +1,33 @@
-#include <mfapi.h>
-#include <mfidl.h>
-#include <mfreadwrite.h>
-#include <mfobjects.h>
-
-#pragma once
-
-namespace games::iidx {
-    void init_mf_library();
-
-    HRESULT WrappedMFCreateAttributes (
-        _Out_ IMFAttributes** ppMFAttributes,
-        _In_ UINT32 cInitialSize);
-
-    HRESULT WrappedMFEnumDeviceSources (
-        _In_ IMFAttributes* pAttributes,
-        _Outptr_result_buffer_(*pcSourceActivate) IMFActivate*** pppSourceActivate,
-        _Out_ UINT32* pcSourceActivate);
-
-    HRESULT WrappedMFCreateSourceReaderFromMediaSource (
-        _In_ IMFMediaSource *pMediaSource,
-        _In_opt_ IMFAttributes *pAttributes,
-        _Out_ IMFSourceReader **ppSourceReader);
-
-    HRESULT WrappedMFGetService (
-        IUnknown* punkObject,
-        REFGUID guidService,
-        REFIID riid,
-        _Outptr_ LPVOID* ppvObject);
+#include <mfapi.h>
+#include <mfidl.h>
+#include <mfreadwrite.h>
+#include <mfobjects.h>
+
+#pragma once
+
+namespace games::iidx {
+    void init_mf_library();
+
+    HRESULT WrappedMFCreateAttributes (
+        _Out_ IMFAttributes** ppMFAttributes,
+        _In_ UINT32 cInitialSize);
+
+    HRESULT WrappedMFCreateMediaType (
+        _Out_ IMFMediaType** ppMFType);
+
+    HRESULT WrappedMFEnumDeviceSources (
+        _In_ IMFAttributes* pAttributes,
+        _Outptr_result_buffer_(*pcSourceActivate) IMFActivate*** pppSourceActivate,
+        _Out_ UINT32* pcSourceActivate);
+
+    HRESULT WrappedMFCreateSourceReaderFromMediaSource (
+        _In_ IMFMediaSource *pMediaSource,
+        _In_opt_ IMFAttributes *pAttributes,
+        _Out_ IMFSourceReader **ppSourceReader);
+
+    HRESULT WrappedMFGetService (
+        IUnknown* punkObject,
+        REFGUID guidService,
+        REFIID riid,
+        _Outptr_ LPVOID* ppvObject);
 }
@@ -1,16 +1,17 @@
 #include "poke.h"

+#include <chrono>
 #include <thread>

 #include "windows.h"
 #include "games/io.h"
+#include "games/iidx/iidx.h"
 #include "hooks/graphics/graphics.h"
 #include "launcher/shutdown.h"
 #include "misc/eamuse.h"
 #include "touch/native/inject.h"
 #include "touch/touch.h"
 #include "util/logging.h"
-#include "util/precise_timer.h"

 namespace games::iidx::poke {

@@ -116,11 +117,14 @@ namespace games::iidx::poke {
        if (THREAD)
            return;

+        if (!games::iidx::NATIVE_TOUCH) {
+            log_warning("poke", "keypad touch emulation requires native touch; disabled");
+            return;
+        }
+
        // create new thread
        THREAD_RUNNING = true;
        THREAD = new std::thread([] {
-            timeutils::PreciseSleepTimer timer;
-
            // log
            log_info("poke", "enabled");

@@ -192,7 +196,7 @@ namespace games::iidx::poke {
                }

                // slow down
-                timer.sleep(50);
+                std::this_thread::sleep_for(std::chrono::milliseconds(50));
            }

            if (!touch_points.empty()) {
@@ -133,6 +133,7 @@ namespace games {
        buttons_help.insert({ jb, jb::get_buttons_help() });
        lights.insert({ jb, jb::get_lights() });
        file_hints[jb].push_back({"jubeat.dll"});
+        file_hints[jb].push_back({"jubeat2019.dll"});

        // mga
        const std::string mga("Metal Gear");
@@ -0,0 +1,336 @@
+#include "bi2x_hook.h"
+
+#if SPICE64
+
+#include <array>
+#include <cstdint>
+#include <cstring>
+
+#include "games/io.h"
+#include "games/jb/jb_touch.h"
+#include "io.h"
+#include "misc/eamuse.h"
+#include "rawinput/rawinput.h"
+#include "util/detour.h"
+#include "util/logging.h"
+
+namespace games::jb {
+
+    struct AIO_SCI_COMM {
+        std::array<uint8_t, 0x100> data;
+    };
+
+    struct AIO_NMGR_IOB2;
+
+    struct AIO_NMGR_IOB2_VTABLE {
+        std::array<void *, 10> unused;
+        void (__fastcall *begin_manage)(AIO_NMGR_IOB2 *node_mgr);
+    };
+
+    struct AIO_NMGR_IOB2 {
+        AIO_NMGR_IOB2_VTABLE *vtable;
+        std::array<uint8_t, 0x78> data;
+    };
+
+    struct AIO_IOB2_BI2X_T44 {
+        std::array<uint8_t, 0x80> data;
+    };
+
+    struct AIO_IOB2_BI2X_T44_DEVSTATUS {
+        std::array<uint8_t, 0x140> data;
+    };
+
+    struct AIO_IOB2_BI2X_WRFIRM {
+        uint8_t data;
+    };
+
+    static_assert(sizeof(AIO_NMGR_IOB2) == 0x80);
+    static_assert(sizeof(AIO_IOB2_BI2X_T44_DEVSTATUS) == 0x140);
+
+    using aioIob2Bi2xT44_Create_t = AIO_IOB2_BI2X_T44 *(__fastcall *)(AIO_NMGR_IOB2 *node_mgr,
+            uint32_t device_id);
+    using aioIob2Bi2xT44_GetDeviceStatus_t = void (__fastcall *)(AIO_IOB2_BI2X_T44 *node,
+            AIO_IOB2_BI2X_T44_DEVSTATUS *status);
+    using aioIob2Bi2xT44_IoReset_t = void (__fastcall *)(AIO_IOB2_BI2X_T44 *node, uint32_t reset);
+    using aioIob2Bi2xT44_SetWatchDogTimer_t = void (__fastcall *)(AIO_IOB2_BI2X_T44 *node, uint8_t count);
+    using aioIob2Bi2xT44_ControlCoinBlocker_t = void (__fastcall *)(AIO_IOB2_BI2X_T44 *node,
+            uint32_t slot, bool open);
+    using aioIob2Bi2xT44_AddCounter_t = void (__fastcall *)(AIO_IOB2_BI2X_T44 *node,
+            uint32_t counter, uint32_t count);
+    using aioIob2Bi2xT44_SetIccrLed_t = void (__fastcall *)(AIO_IOB2_BI2X_T44 *node, uint32_t color);
+    using aioIob2Bi2xT44_SetTapeLedData_t = void (__fastcall *)(AIO_IOB2_BI2X_T44 *node,
+            uint32_t tape, const void *data);
+    using aioIob2Bi2x_OpenSciUsbCdc_t = AIO_SCI_COMM *(__fastcall *)(uint32_t serial_number);
+    using aioIob2Bi2x_CreateWriteFirmContext_t = AIO_IOB2_BI2X_WRFIRM *(__fastcall *)(
+            uint32_t serial_number, uint32_t iob_mask);
+    using aioIob2Bi2x_DestroyWriteFirmContext_t = void (__fastcall *)(AIO_IOB2_BI2X_WRFIRM *context);
+    using aioIob2Bi2x_WriteFirmGetState_t = int32_t (__fastcall *)(AIO_IOB2_BI2X_WRFIRM *context);
+    using aioIob2Bi2x_WriteFirmIsCompleted_t = bool (__fastcall *)(int32_t state);
+    using aioIob2Bi2x_WriteFirmIsError_t = bool (__fastcall *)(int32_t state);
+    using aioNMgrIob2_Create_t = AIO_NMGR_IOB2 *(__fastcall *)(AIO_SCI_COMM *sci, uint32_t mode);
+    using aioSci_Destroy_t = void (__fastcall *)(AIO_SCI_COMM *sci);
+    using aioNodeMgr_Destroy_t = void (__fastcall *)(AIO_NMGR_IOB2 *node_mgr);
+    using aioNodeCtl_Destroy_t = void (__fastcall *)(AIO_IOB2_BI2X_T44 *node);
+    using aioNodeCtl_UpdateDevicesStatus_t = void (__fastcall *)();
+
+    static aioIob2Bi2xT44_Create_t aioIob2Bi2xT44_Create_orig = nullptr;
+    static aioIob2Bi2xT44_GetDeviceStatus_t aioIob2Bi2xT44_GetDeviceStatus_orig = nullptr;
+    static aioIob2Bi2xT44_IoReset_t aioIob2Bi2xT44_IoReset_orig = nullptr;
+    static aioIob2Bi2xT44_SetWatchDogTimer_t aioIob2Bi2xT44_SetWatchDogTimer_orig = nullptr;
+    static aioIob2Bi2xT44_ControlCoinBlocker_t aioIob2Bi2xT44_ControlCoinBlocker_orig = nullptr;
+    static aioIob2Bi2xT44_AddCounter_t aioIob2Bi2xT44_AddCounter_orig = nullptr;
+    static aioIob2Bi2xT44_SetIccrLed_t aioIob2Bi2xT44_SetIccrLed_orig = nullptr;
+    static aioIob2Bi2xT44_SetTapeLedData_t aioIob2Bi2xT44_SetTapeLedData_orig = nullptr;
+    static aioIob2Bi2x_OpenSciUsbCdc_t aioIob2Bi2x_OpenSciUsbCdc_orig = nullptr;
+    static aioIob2Bi2x_CreateWriteFirmContext_t aioIob2Bi2x_CreateWriteFirmContext_orig = nullptr;
+    static aioIob2Bi2x_DestroyWriteFirmContext_t aioIob2Bi2x_DestroyWriteFirmContext_orig = nullptr;
+    static aioIob2Bi2x_WriteFirmGetState_t aioIob2Bi2x_WriteFirmGetState_orig = nullptr;
+    static aioIob2Bi2x_WriteFirmIsCompleted_t aioIob2Bi2x_WriteFirmIsCompleted_orig = nullptr;
+    static aioIob2Bi2x_WriteFirmIsError_t aioIob2Bi2x_WriteFirmIsError_orig = nullptr;
+    static aioNMgrIob2_Create_t aioNMgrIob2_Create_orig = nullptr;
+    static aioSci_Destroy_t aioSci_Destroy_orig = nullptr;
+    static aioNodeMgr_Destroy_t aioNodeMgr_Destroy_orig = nullptr;
+    static aioNodeCtl_Destroy_t aioNodeCtl_Destroy_orig = nullptr;
+    static aioNodeCtl_UpdateDevicesStatus_t aioNodeCtl_UpdateDevicesStatus_orig = nullptr;
+
+    static AIO_SCI_COMM *aio_sci_comm = nullptr;
+    static AIO_NMGR_IOB2 *aio_node_mgr = nullptr;
+    static AIO_IOB2_BI2X_T44 *aio_t44 = nullptr;
+    static AIO_IOB2_BI2X_WRFIRM *aio_write_firm = nullptr;
+    static uint8_t input_counter = 0;
+
+    static void __fastcall aioNMgrIob_BeginManage(AIO_NMGR_IOB2 *) {
+    }
+
+    static AIO_NMGR_IOB2_VTABLE aio_node_mgr_vtable {
+        {},
+        aioNMgrIob_BeginManage,
+    };
+
+    static AIO_SCI_COMM *__fastcall aioIob2Bi2x_OpenSciUsbCdc(uint32_t) {
+        aio_sci_comm = new AIO_SCI_COMM {};
+        return aio_sci_comm;
+    }
+
+    static AIO_NMGR_IOB2 *__fastcall aioNMgrIob2_Create(AIO_SCI_COMM *sci, uint32_t mode) {
+        if (sci != aio_sci_comm) {
+            return aioNMgrIob2_Create_orig(sci, mode);
+        }
+
+        aio_node_mgr = new AIO_NMGR_IOB2 {};
+        aio_node_mgr->vtable = &aio_node_mgr_vtable;
+        return aio_node_mgr;
+    }
+
+    static AIO_IOB2_BI2X_T44 *__fastcall aioIob2Bi2xT44_Create(
+            AIO_NMGR_IOB2 *node_mgr, uint32_t device_id) {
+        if (node_mgr != aio_node_mgr) {
+            return aioIob2Bi2xT44_Create_orig(node_mgr, device_id);
+        }
+
+        log_info("jb::bi2x", "T44 node created");
+        aio_t44 = new AIO_IOB2_BI2X_T44 {};
+        return aio_t44;
+    }
+
+    static void __fastcall aioIob2Bi2xT44_GetDeviceStatus(
+            AIO_IOB2_BI2X_T44 *node, AIO_IOB2_BI2X_T44_DEVSTATUS *status) {
+        if (node != aio_t44) {
+            return aioIob2Bi2xT44_GetDeviceStatus_orig(node, status);
+        }
+
+        RI_MGR->devices_flush_output();
+        std::memset(status, 0, sizeof(*status));
+
+        status->data[0x00] = input_counter;
+        status->data[0x03] = input_counter++;
+        status->data[0x0A] = static_cast<uint8_t>(eamuse_coin_get_stock());
+
+        games::jb::touch_update();
+        const auto touched = games::jb::touch_state();
+        auto &buttons = get_buttons();
+
+        status->data[0x04] = GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Test]) ? 0xFF : 0;
+        status->data[0x05] = GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Service]) ? 0xFF : 0;
+        status->data[0x06] = GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::CoinMech]) ? 0xFF : 0;
+
+        static constexpr size_t PANEL_ORDER[16] = {
+            3, 7, 11, 15,
+            2, 6, 10, 14,
+            1, 5, 9, 13,
+            0, 4, 8, 12,
+        };
+        for (size_t status_index = 0; status_index < std::size(PANEL_ORDER); status_index++) {
+            const auto panel_index = PANEL_ORDER[status_index];
+            if (touched[panel_index] || GameAPI::Buttons::getState(
+                    RI_MGR, buttons[Buttons::Button1 + panel_index])) {
+                status->data[0x0F + status_index] = 0xFF;
+            }
+        }
+    }
+
+    static void __fastcall aioIob2Bi2xT44_IoReset(AIO_IOB2_BI2X_T44 *node, uint32_t reset) {
+        if (node != aio_t44) {
+            return aioIob2Bi2xT44_IoReset_orig(node, reset);
+        }
+    }
+
+    static void __fastcall aioIob2Bi2xT44_SetWatchDogTimer(AIO_IOB2_BI2X_T44 *node, uint8_t count) {
+        if (node != aio_t44) {
+            return aioIob2Bi2xT44_SetWatchDogTimer_orig(node, count);
+        }
+    }
+
+    static void __fastcall aioIob2Bi2xT44_ControlCoinBlocker(
+            AIO_IOB2_BI2X_T44 *node, uint32_t slot, bool open) {
+        if (node != aio_t44) {
+            return aioIob2Bi2xT44_ControlCoinBlocker_orig(node, slot, open);
+        }
+
+        eamuse_coin_set_block(!open);
+    }
+
+    static void __fastcall aioIob2Bi2xT44_AddCounter(
+            AIO_IOB2_BI2X_T44 *node, uint32_t counter, uint32_t count) {
+        if (node != aio_t44) {
+            return aioIob2Bi2xT44_AddCounter_orig(node, counter, count);
+        }
+    }
+
+    static void __fastcall aioIob2Bi2xT44_SetIccrLed(AIO_IOB2_BI2X_T44 *node, uint32_t color) {
+        if (node != aio_t44) {
+            return aioIob2Bi2xT44_SetIccrLed_orig(node, color);
+        }
+    }
+
+    static void __fastcall aioIob2Bi2xT44_SetTapeLedData(
+            AIO_IOB2_BI2X_T44 *node, uint32_t tape, const void *data) {
+        if (node != aio_t44) {
+            return aioIob2Bi2xT44_SetTapeLedData_orig(node, tape, data);
+        }
+    }
+
+    static AIO_IOB2_BI2X_WRFIRM *__fastcall aioIob2Bi2x_CreateWriteFirmContext(uint32_t, uint32_t) {
+        aio_write_firm = new AIO_IOB2_BI2X_WRFIRM {};
+        return aio_write_firm;
+    }
+
+    static void __fastcall aioIob2Bi2x_DestroyWriteFirmContext(AIO_IOB2_BI2X_WRFIRM *context) {
+        if (context != aio_write_firm) {
+            return aioIob2Bi2x_DestroyWriteFirmContext_orig(context);
+        }
+
+        delete aio_write_firm;
+        aio_write_firm = nullptr;
+    }
+
+    static int32_t __fastcall aioIob2Bi2x_WriteFirmGetState(AIO_IOB2_BI2X_WRFIRM *context) {
+        if (context != aio_write_firm) {
+            return aioIob2Bi2x_WriteFirmGetState_orig(context);
+        }
+        return 8;
+    }
+
+    static bool __fastcall aioIob2Bi2x_WriteFirmIsCompleted(int32_t state) {
+        if (aio_write_firm) {
+            return true;
+        }
+        return aioIob2Bi2x_WriteFirmIsCompleted_orig(state);
+    }
+
+    static bool __fastcall aioIob2Bi2x_WriteFirmIsError(int32_t state) {
+        if (aio_write_firm) {
+            return false;
+        }
+        return aioIob2Bi2x_WriteFirmIsError_orig(state);
+    }
+
+    static void __fastcall aioSci_Destroy(AIO_SCI_COMM *sci) {
+        if (sci != aio_sci_comm) {
+            return aioSci_Destroy_orig(sci);
+        }
+
+        delete aio_sci_comm;
+        aio_sci_comm = nullptr;
+    }
+
+    static void __fastcall aioNodeMgr_Destroy(AIO_NMGR_IOB2 *node_mgr) {
+        if (node_mgr != aio_node_mgr) {
+            return aioNodeMgr_Destroy_orig(node_mgr);
+        }
+
+        delete aio_node_mgr;
+        aio_node_mgr = nullptr;
+    }
+
+    static void __fastcall aioNodeCtl_Destroy(AIO_IOB2_BI2X_T44 *node) {
+        if (node != aio_t44) {
+            return aioNodeCtl_Destroy_orig(node);
+        }
+
+        delete aio_t44;
+        aio_t44 = nullptr;
+    }
+
+    static void __fastcall aioNodeCtl_UpdateDevicesStatus() {
+    }
+
+    void bi2x_hook_init() {
+        static bool initialized = false;
+        if (initialized) {
+            return;
+        }
+        initialized = true;
+
+        log_info("jb::bi2x", "initializing T44 hooks");
+
+        const auto libaio_iob2_video = "libaio-iob2_video.dll";
+        detour::trampoline_try(libaio_iob2_video, "aioIob2Bi2xT44_Create",
+                aioIob2Bi2xT44_Create, &aioIob2Bi2xT44_Create_orig);
+        detour::trampoline_try(libaio_iob2_video,
+                "?GetDeviceStatus@AIO_IOB2_BI2X_T44@@QEBAXAEAUDEVSTATUS@1@@Z",
+                aioIob2Bi2xT44_GetDeviceStatus, &aioIob2Bi2xT44_GetDeviceStatus_orig);
+        detour::trampoline_try(libaio_iob2_video, "?IoReset@AIO_IOB2_BI2X_T44@@QEAAXI@Z",
+                aioIob2Bi2xT44_IoReset, &aioIob2Bi2xT44_IoReset_orig);
+        detour::trampoline_try(libaio_iob2_video,
+                "?SetWatchDogTimer@AIO_IOB2_BI2X_T44@@QEAAXE@Z",
+                aioIob2Bi2xT44_SetWatchDogTimer, &aioIob2Bi2xT44_SetWatchDogTimer_orig);
+        detour::trampoline_try(libaio_iob2_video,
+                "?ControlCoinBlocker@AIO_IOB2_BI2X_T44@@QEAAXI_N@Z",
+                aioIob2Bi2xT44_ControlCoinBlocker, &aioIob2Bi2xT44_ControlCoinBlocker_orig);
+        detour::trampoline_try(libaio_iob2_video, "?AddCounter@AIO_IOB2_BI2X_T44@@QEAAXII@Z",
+                aioIob2Bi2xT44_AddCounter, &aioIob2Bi2xT44_AddCounter_orig);
+        detour::trampoline_try(libaio_iob2_video, "?SetIccrLed@AIO_IOB2_BI2X_T44@@QEAAXI@Z",
+                aioIob2Bi2xT44_SetIccrLed, &aioIob2Bi2xT44_SetIccrLed_orig);
+        detour::trampoline_try(libaio_iob2_video,
+                "?SetTapeLedData@AIO_IOB2_BI2X_T44@@QEAAXIPEBX@Z",
+                aioIob2Bi2xT44_SetTapeLedData, &aioIob2Bi2xT44_SetTapeLedData_orig);
+
+        const auto libaio_iob = "libaio-iob.dll";
+        detour::trampoline_try(libaio_iob, "aioIob2Bi2x_OpenSciUsbCdc",
+                aioIob2Bi2x_OpenSciUsbCdc, &aioIob2Bi2x_OpenSciUsbCdc_orig);
+        detour::trampoline_try(libaio_iob, "aioIob2Bi2x_CreateWriteFirmContext",
+                aioIob2Bi2x_CreateWriteFirmContext, &aioIob2Bi2x_CreateWriteFirmContext_orig);
+        detour::trampoline_try(libaio_iob, "aioIob2Bi2x_DestroyWriteFirmContext",
+                aioIob2Bi2x_DestroyWriteFirmContext, &aioIob2Bi2x_DestroyWriteFirmContext_orig);
+        detour::trampoline_try(libaio_iob, "aioIob2Bi2x_WriteFirmGetState",
+                aioIob2Bi2x_WriteFirmGetState, &aioIob2Bi2x_WriteFirmGetState_orig);
+        detour::trampoline_try(libaio_iob, "aioIob2Bi2x_WriteFirmIsCompleted",
+                aioIob2Bi2x_WriteFirmIsCompleted, &aioIob2Bi2x_WriteFirmIsCompleted_orig);
+        detour::trampoline_try(libaio_iob, "aioIob2Bi2x_WriteFirmIsError",
+                aioIob2Bi2x_WriteFirmIsError, &aioIob2Bi2x_WriteFirmIsError_orig);
+        detour::trampoline_try(libaio_iob, "aioNMgrIob2_Create",
+                aioNMgrIob2_Create, &aioNMgrIob2_Create_orig);
+
+        const auto libaio = "libaio.dll";
+        detour::trampoline_try(libaio, "aioSci_Destroy", aioSci_Destroy, &aioSci_Destroy_orig);
+        detour::trampoline_try(libaio, "aioNodeMgr_Destroy",
+                aioNodeMgr_Destroy, &aioNodeMgr_Destroy_orig);
+        detour::trampoline_try(libaio, "aioNodeCtl_Destroy",
+                aioNodeCtl_Destroy, &aioNodeCtl_Destroy_orig);
+        detour::trampoline_try(libaio, "aioNodeCtl_UpdateDevicesStatus",
+                aioNodeCtl_UpdateDevicesStatus, &aioNodeCtl_UpdateDevicesStatus_orig);
+    }
+}
+
+#endif
@@ -0,0 +1,9 @@
+#pragma once
+
+#if SPICE64
+
+namespace games::jb {
+    void bi2x_hook_init();
+}
+
+#endif
@@ -3,6 +3,8 @@
 #include <windows.h>
 #include <filesystem>

+#include "avs/game.h"
+#include "bi2x_hook.h"
 #include "cfg/configurator.h"
 #include "util/logging.h"
 #include "util/detour.h"
@@ -10,6 +12,8 @@

 namespace games::jb {

+#if !SPICE64
+
    // fixes "IP ADDR CHANGE" errors with unusual network setups (e.g. a VPN)
    static BOOL __stdcall network_addr_is_changed() {
        return 0;
@@ -31,6 +35,8 @@ namespace games::jb {
        return 0;
    }

+#endif
+
    JBGame::JBGame() : Game("Jubeat") {
    }

@@ -60,8 +66,18 @@ namespace games::jb {
    void JBGame::attach() {
        Game::attach();

+#if SPICE64
+        if (avs::game::DLL_NAME == "jubeat2019.dll") {
+            libutils::load_library("libaio.dll");
+            libutils::load_library("libaio-iob.dll");
+            libutils::load_library("libaio-iob2_video.dll");
+            bi2x_hook_init();
+        }
+#endif
+
        touch_attach();

+#if !SPICE64
        // enable debug logging of gftools
        HMODULE gftools = libutils::try_module("gftools.dll");
        detour::inline_hook((void *) GFDbgSetReportFunc, libutils::try_proc(
@@ -75,6 +91,8 @@ namespace games::jb {
                network, "network_get_network_check_info"));
        detour::inline_hook((void *) network_get_dhcp_result, libutils::try_proc(
                network, "network_get_dhcp_result"));
+#endif
+
    }

    void JBGame::detach() {
@@ -20,6 +20,8 @@
 // (6, 8) in landscape.
 #define JB_BUTTON_SIZE 160
 #define JB_MAX_BUTTON_GAP 38
+#define JB_T44_BUTTON_SIZE 224
+#define JB_T44_BUTTON_GAP 33

 // improved and plus modes use this reach around each button. must be >= the
 // diagonal half of the widest gap (~27px) so the grid centre still reaches a button.
@@ -41,6 +43,7 @@ namespace games::jb {
    static std::atomic_bool TOUCH_ENABLE = false;
    static bool TOUCH_ATTACHED = false;
    static bool IS_PORTRAIT = true;
+    static bool IS_T44 = false;
    static std::atomic_uint16_t TOUCH_STATE = 0;

    // fixed-size contact view used by the debug overlay
@@ -85,35 +88,45 @@ namespace games::jb {
    // --- touch geometry ------------------------------------------------------
    // gaps between the four buttons along one axis (the middle gap is 1px wider)
    static const int JB_BUTTON_GAPS[3] = { 37, JB_MAX_BUTTON_GAP, 37 };
+    static const int JB_T44_BUTTON_GAPS[3] = {
+        JB_T44_BUTTON_GAP,
+        JB_T44_BUTTON_GAP,
+        JB_T44_BUTTON_GAP,
+    };

    struct AxisGeometry {
+        int size;
        int button[4]; // left/top edge of each button
    };

    // left/top edges of the four buttons along one axis, starting at `first`
-    static AxisGeometry axis_geometry(int first) {
+    static AxisGeometry axis_geometry(int first, int size, const int gaps[3]) {
        AxisGeometry g {};
+        g.size = size;
        g.button[0] = first;
        for (int i = 1; i < 4; i++) {
-            g.button[i] = g.button[i - 1] + JB_BUTTON_SIZE + JB_BUTTON_GAPS[i - 1];
+            g.button[i] = g.button[i - 1] + size + gaps[i - 1];
        }
        return g;
    }

    // button edges for the current orientation
    static void touch_geometry(AxisGeometry &gx, AxisGeometry &gy) {
-        if (IS_PORTRAIT) {
-            gx = axis_geometry(8);
-            gy = axis_geometry(602);
+        if (IS_T44) {
+            gx = axis_geometry(37, JB_T44_BUTTON_SIZE, JB_T44_BUTTON_GAPS);
+            gy = axis_geometry(864, JB_T44_BUTTON_SIZE, JB_T44_BUTTON_GAPS);
+        } else if (IS_PORTRAIT) {
+            gx = axis_geometry(8, JB_BUTTON_SIZE, JB_BUTTON_GAPS);
+            gy = axis_geometry(602, JB_BUTTON_SIZE, JB_BUTTON_GAPS);
        } else {
-            gx = axis_geometry(6);
-            gy = axis_geometry(8);
+            gx = axis_geometry(6, JB_BUTTON_SIZE, JB_BUTTON_GAPS);
+            gy = axis_geometry(8, JB_BUTTON_SIZE, JB_BUTTON_GAPS);
        }
    }

    // distance from `p` to a button along one axis (0 when inside)
-    static int axis_distance(int p, int button) {
-        int end = button + JB_BUTTON_SIZE - 1;
+    static int axis_distance(int p, int button, int size) {
+        int end = button + size - 1;
        if (p < button) {
            return button - p;
        }
@@ -131,8 +144,8 @@ namespace games::jb {
        int best_dist = 0;
        for (int r = 0; r < 4; r++) {
            for (int c = 0; c < 4; c++) {
-                int dx = axis_distance(px, gx.button[c]);
-                int dy = axis_distance(py, gy.button[r]);
+                int dx = axis_distance(px, gx.button[c], gx.size);
+                int dy = axis_distance(py, gy.button[r], gy.size);
                int dist = dx * dx + dy * dy;
                if (dist <= radius * radius && (best_index < 0 || dist < best_dist)) {
                    best_dist = dist;
@@ -145,7 +158,8 @@ namespace games::jb {

    // detection reach for the current algorithm (0 = register only inside a button)
    static int touch_radius() {
-        return TOUCH_ALGORITHM == AcAccurate ? 0 : JB_TOUCH_RADIUS;
+        return TOUCH_ALGORITHM == AcAccurate || (IS_T44 && TOUCH_ALGORITHM == Legacy) ?
+            0 : JB_TOUCH_RADIUS;
    }

    // mark the buttons a touch at (px, py) hits: only the nearest within `radius`, or
@@ -162,8 +176,8 @@ namespace games::jb {
        }
        for (int r = 0; r < 4; r++) {
            for (int c = 0; c < 4; c++) {
-                int dx = axis_distance(px, gx.button[c]);
-                int dy = axis_distance(py, gy.button[r]);
+                int dx = axis_distance(px, gx.button[c], gx.size);
+                int dy = axis_distance(py, gy.button[r], gy.size);
                if (dx * dx + dy * dy <= radius * radius) {
                    state |= uint16_t(1) << (r * 4 + c);
                }
@@ -184,11 +198,15 @@ namespace games::jb {
        // one-time touch window attach
        if (!TOUCH_ATTACHED) {

+            IS_T44 = avs::game::is_model("T44");
+            IS_PORTRAIT = IS_T44 || avs::game::is_model("L44");
+
            // find the game window: prefer the foreground window, else search by
-            // title (the model name prefixes the window title in every version)
+            // title (T44 uses a fixed title instead of the model prefix)
+            const char *window_title = IS_T44 ? "jubeat 10 main" : avs::game::MODEL;
            HWND wnd = GetForegroundWindow();
-            if (!string_begins_with(GetActiveWindowTitle(), avs::game::MODEL)) {
-                wnd = FindWindowBeginsWith(avs::game::MODEL);
+            if (!string_begins_with(GetActiveWindowTitle(), window_title)) {
+                wnd = FindWindowBeginsWith(window_title);
            }
            if (!wnd) {
                log_warning("jubeat", "could not find window handle for touch");
@@ -197,10 +215,6 @@ namespace games::jb {
                return;
            }

-            // only the L44 model runs in portrait; set this before starting the
-            // touch-window thread so the renderer only observes the final value
-            IS_PORTRAIT = avs::game::is_model("L44");
-
            log_info("jubeat", "using window handle for touch: {}", fmt::ptr(wnd));

            // let the rawinput stack correct the aspect ratio
@@ -232,7 +246,7 @@ namespace games::jb {
            return !touch_matured(tp, now_ms, threshold_ms);
        });

-        if (TOUCH_ALGORITHM == Legacy) {
+        if (TOUCH_ALGORITHM == Legacy && !IS_T44) {

            // legacy: evenly divide the play area into a 4x4 grid
            auto offset = IS_PORTRAIT ? 580 : 0;
@@ -311,7 +325,7 @@ namespace games::jb {
                for (int c = 0; c < 4; c++) {
                    cells[r * 4 + c] = {
                        gx.button[c], gy.button[r],
-                        gx.button[c] + JB_BUTTON_SIZE, gy.button[r] + JB_BUTTON_SIZE
+                        gx.button[c] + gx.size, gy.button[r] + gy.size
                    };
                }
            }
@@ -352,8 +366,8 @@ namespace games::jb {
                             const AxisGeometry &gx, const AxisGeometry &gy, int arc_radius) {
        int c = index % 4;
        int r = index / 4;
-        double mid = std::atan2((gy.button[r] + JB_BUTTON_SIZE / 2) - py,
-                                (gx.button[c] + JB_BUTTON_SIZE / 2) - px);
+        double mid = std::atan2((gy.button[r] + gy.size / 2) - py,
+                    (gx.button[c] + gx.size / 2) - px);
        const double quarter = 3.14159265358979323846 / 2.0;
        const int segments = 16;
        POINT arc[segments + 1];
@@ -425,7 +439,7 @@ namespace games::jb {
        }

        // legacy divides the field evenly; the other algorithms use button squares
-        bool legacy = (TOUCH_ALGORITHM == Legacy);
+        bool legacy = TOUCH_ALGORITHM == Legacy && !IS_T44;
        AxisGeometry gx {}, gy {};
        if (!legacy) {
            touch_geometry(gx, gy);
@@ -2,6 +2,7 @@
 #include "poke.h"
 #include "touch_mode.h"
 #include "hooks/setupapihook.h"
+#include "misc/wintouchemu.h"
 #include "touch/native/nativetouchhook.h"
 #include "avs/game.h"

@@ -41,9 +42,15 @@ namespace games::nost {
        setupapihook_init(avs::game::DLL_INSTANCE);
        setupapihook_add(touch_settings);

-        nativetouch::hook(avs::game::DLL_INSTANCE);
-        if (ENABLE_TOUCH_MODE) {
-            touch_mode::enable();
+        const auto native_touch_ready = !wintouchemu::FORCE &&
+            nativetouch::hook(avs::game::DLL_INSTANCE);
+        if (!native_touch_ready) {
+            wintouchemu::FORCE = true;
+            wintouchemu::hook("nostalgia", avs::game::DLL_INSTANCE, 20);
+        } else {
+            if (ENABLE_TOUCH_MODE) {
+                touch_mode::enable();
+            }
        }
    }

@@ -1,6 +1,7 @@
 #include "poke.h"

 #include <atomic>
+#include <chrono>
 #include <optional>
 #include <thread>

@@ -9,8 +10,8 @@
 #include "rawinput/rawinput.h"
 #include "misc/eamuse.h"
 #include "touch/native/inject.h"
+#include "touch/native/nativetouchhook.h"
 #include "util/logging.h"
-#include "util/precise_timer.h"

 namespace games::nost::poke {

@@ -59,11 +60,14 @@ namespace games::nost::poke {
            return;
        }

+        if (!nativetouch::is_hooked()) {
+            log_warning("poke", "Nostalgia poke requires native touch; disabled");
+            return;
+        }
+
        // create new thread
        THREAD_RUNNING = true;
        THREAD = new std::thread([] {
-            timeutils::PreciseSleepTimer timer;
-
            const int swipe_anim_total_frames = 6;
            const int swipe_anim_y = 300;

@@ -188,7 +192,7 @@ namespace games::nost::poke {
                }

                // slow down
-                timer.sleep(30);
+                std::this_thread::sleep_for(std::chrono::milliseconds(30));
            }

            if (contact_active) {
@@ -1,233 +1,233 @@
-#include "touch_mode.h"
-
-#include <atomic>
-#include <mutex>
-#include <unordered_map>
-
-#include "touch/native/nativetouchhook.h"
-#include "util/logging.h"
-
-namespace games::nost::touch_mode {
-
-    // native contact positions feed piano input directly. native events reach the game
-    // in nav mode and are suppressed in piano mode. mode-button contacts are always
-    // suppressed and change that routing after release.
-    static constexpr LONG PIANO_LEFT_GAP = 11;
-    static constexpr LONG PIANO_RIGHT_GAP = 10;
-    static constexpr uint32_t PIANO_KEY_COUNT = 28;
-
-    struct TouchGeometry {
-        HWND window = nullptr;
-        RECT mode_button {};
-        LONG client_width = 0;
-        LONG client_height = 0;
-
-        bool valid() const {
-            return window != nullptr && client_width > 0 && client_height > 0;
-        }
-    };
-
-    struct NativeContact {
-        POINT position {};
-
-        // position contains game-client coordinates
-        bool client_position_valid = false;
-
-        // down began on the mode switch button; remains true through up
-        bool mode_button = false;
-    };
-
-    static std::atomic_bool accept_events { false };
-    static std::atomic<Mode> current_mode_state { Mode::Nav };
-    static std::mutex state_mutex;
-    static TouchGeometry touch_geometry;
-
-    // native contacts are kept by ID so each contact contributes exactly one position
-    static std::unordered_map<DWORD, NativeContact> active_contacts;
-
-    // a hardware button release requests one change after all contacts are released
-    static bool mode_change_pending = false;
-
-    static void reset_state_locked() {
-        current_mode_state.store(Mode::Nav, std::memory_order_release);
-        touch_geometry = {};
-        active_contacts.clear();
-        mode_change_pending = false;
-    }
-
-    // hardware contacts arrive in screen coordinates
-    static bool native_touch_in_button(const nativetouch::NativeTouchEvent &event) {
-        if (!touch_geometry.valid()) {
-            return false;
-        }
-
-        POINT position { event.x, event.y };
-        if (!ScreenToClient(touch_geometry.window, &position)) {
-            return false;
-        }
-        return PtInRect(&touch_geometry.mode_button, position) != FALSE;
-    }
-
-    static bool update_touch_state(const nativetouch::NativeTouchEvent &event) {
-        std::lock_guard<std::mutex> lock(state_mutex);
-
-        // first, process down / move events
-        if (event.down || event.move) {
-            auto contact = active_contacts.try_emplace(event.id).first;
-
-            // keep track of IDs that began as a down on the mode switch button
-            if (event.down) {
-                contact->second.mode_button = native_touch_in_button(event);
-            }
-
-            // check for valid position
-            POINT position { event.x, event.y };
-            if (touch_geometry.window != nullptr &&
-                ScreenToClient(touch_geometry.window, &position)) {
-                contact->second.position = position;
-                contact->second.client_position_valid = true;
-            }
-        }
-
-        const auto contact = active_contacts.find(event.id);
-        const bool mode_button_contact = contact != active_contacts.end() &&
-            contact->second.mode_button;
-
-        // process up events
-        if (event.up) {
-            active_contacts.erase(event.id);
-
-            // if a contact that began down event on the mode switch button has
-            // been released, a mode switch is now pending
-            if (mode_button_contact) {
-                mode_change_pending = true;
-            }
-
-            // apply the change on the final hardware up. switching earlier would
-            // split another contact's down and up events across different modes
-            if (mode_change_pending && active_contacts.empty()) {
-                mode_change_pending = false;
-                const auto next_mode = current_mode() == Mode::Nav ? Mode::Piano : Mode::Nav;
-                current_mode_state.store(next_mode, std::memory_order_release);
-            }
-        }
-        return mode_button_contact;
-    }
-
-    // install the Nostalgia-specific native touch interception
-    void enable() {
-        if (accept_events.exchange(true, std::memory_order_acq_rel)) {
-            return;
-        }
-
-        {
-            std::lock_guard<std::mutex> lock(state_mutex);
-            reset_state_locked();
-        }
-
-        nativetouch::set_input_filter(filter_native_touch);
-        log_info("nost::touch", "enabled");
-    }
-
-    void disable() {
-        if (!accept_events.exchange(false, std::memory_order_acq_rel)) {
-            return;
-        }
-
-        nativetouch::set_input_filter(nullptr);
-
-        std::lock_guard<std::mutex> lock(state_mutex);
-        reset_state_locked();
-    }
-
-    bool enabled() {
-        return accept_events.load(std::memory_order_acquire);
-    }
-
-    Mode current_mode() {
-        return current_mode_state.load(std::memory_order_acquire);
-    }
-
-    // publish the rendered overlay button rectangle in game-client pixels
-    void publish_button_bounds(HWND window, const RECT &client_bounds) {
-        TouchGeometry next {};
-        RECT client_rect {};
-        if (window != nullptr && GetClientRect(window, &client_rect) &&
-            client_rect.right > 0 && client_rect.bottom > 0) {
-            next.window = window;
-            next.mode_button = client_bounds;
-            next.client_width = client_rect.right;
-            next.client_height = client_rect.bottom;
-        }
-
-        std::lock_guard<std::mutex> lock(state_mutex);
-        touch_geometry = next;
-    }
-
-    // return the active 28-key piano bitfield for the PANB input update
-    uint32_t piano_key_state() {
-        if (!enabled() || current_mode() != Mode::Piano) {
-            return 0;
-        }
-
-        std::lock_guard<std::mutex> lock(state_mutex);
-        if (current_mode() != Mode::Piano || !touch_geometry.valid()) {
-            return 0;
-        }
-
-        uint32_t state = 0;
-        for (const auto &contact : active_contacts) {
-            // invalid position or mode-button contact; ignore these contacts
-            if (!contact.second.client_position_valid || contact.second.mode_button) {
-                continue;
-            }
-
-            const auto &position = contact.second.position;
-
-            // outside the client area or on the mode button; ignore these contacts
-            if (position.x < 0 || position.x >= touch_geometry.client_width ||
-                position.y < 0 || position.y >= touch_geometry.client_height ||
-                PtInRect(&touch_geometry.mode_button, position)) {
-                continue;
-            }
-
-            // divide the inset width evenly; touches in either side gap clamp to
-            // the nearest outer key so the physical screen edges remain playable
-            const auto piano_width =
-                touch_geometry.client_width - PIANO_LEFT_GAP - PIANO_RIGHT_GAP;
-            uint32_t key = 0;
-            if (position.x >= touch_geometry.client_width - PIANO_RIGHT_GAP) {
-                key = PIANO_KEY_COUNT - 1;
-            } else if (position.x >= PIANO_LEFT_GAP && piano_width > 0) {
-                key = static_cast<uint32_t>(
-                    (position.x - PIANO_LEFT_GAP) * PIANO_KEY_COUNT / piano_width);
-            }
-            state |= UINT32_C(1) << key;
-        }
-
-        return state;
-    }
-
-    // update native contacts and report whether this event should be hidden from the game
-    bool filter_native_touch(const nativetouch::NativeTouchEvent &event) {
-        // synthetic events are outside this hardware-only feature
-        if (!enabled() || event.synthetic) {
-            // false leaves the event visible to the game
-            return false;
-        }
-
-        // snapshot routing before an up event can commit a pending mode switch
-        const bool piano_mode_before_update = current_mode() == Mode::Piano;
-
-        // update the contact lifetime and commit any pending switch when safe
-        const bool mode_button_contact = update_touch_state(event);
-
-        // hide every event in a contact that began on the mode switch button
-        if (mode_button_contact) {
-            return true;
-        }
-
-        // piano mode consumes hardware events; nav mode forwards them to the game
-        return piano_mode_before_update;
-    }
-}
+#include "touch_mode.h"
+
+#include <atomic>
+#include <mutex>
+#include <unordered_map>
+
+#include "touch/native/nativetouchhook.h"
+#include "util/logging.h"
+
+namespace games::nost::touch_mode {
+
+    // native contact positions feed piano input directly. native events reach the game
+    // in nav mode and are suppressed in piano mode. mode-button contacts are always
+    // suppressed and change that routing after release.
+    static constexpr LONG PIANO_LEFT_GAP = 11;
+    static constexpr LONG PIANO_RIGHT_GAP = 10;
+    static constexpr uint32_t PIANO_KEY_COUNT = 28;
+
+    struct TouchGeometry {
+        HWND window = nullptr;
+        RECT mode_button {};
+        LONG client_width = 0;
+        LONG client_height = 0;
+
+        bool valid() const {
+            return window != nullptr && client_width > 0 && client_height > 0;
+        }
+    };
+
+    struct NativeContact {
+        POINT position {};
+
+        // position contains game-client coordinates
+        bool client_position_valid = false;
+
+        // down began on the mode switch button; remains true through up
+        bool mode_button = false;
+    };
+
+    static std::atomic_bool accept_events { false };
+    static std::atomic<Mode> current_mode_state { Mode::Nav };
+    static std::mutex state_mutex;
+    static TouchGeometry touch_geometry;
+
+    // native contacts are kept by ID so each contact contributes exactly one position
+    static std::unordered_map<DWORD, NativeContact> active_contacts;
+
+    // a hardware button release requests one change after all contacts are released
+    static bool mode_change_pending = false;
+
+    static void reset_state_locked() {
+        current_mode_state.store(Mode::Nav, std::memory_order_release);
+        touch_geometry = {};
+        active_contacts.clear();
+        mode_change_pending = false;
+    }
+
+    // hardware contacts arrive in screen coordinates
+    static bool native_touch_in_button(const nativetouch::NativeTouchEvent &event) {
+        if (!touch_geometry.valid()) {
+            return false;
+        }
+
+        POINT position { event.x, event.y };
+        if (!ScreenToClient(touch_geometry.window, &position)) {
+            return false;
+        }
+        return PtInRect(&touch_geometry.mode_button, position) != FALSE;
+    }
+
+    static bool update_touch_state(const nativetouch::NativeTouchEvent &event) {
+        std::lock_guard<std::mutex> lock(state_mutex);
+
+        // first, process down / move events
+        if (event.down || event.move) {
+            auto contact = active_contacts.try_emplace(event.id).first;
+
+            // keep track of IDs that began as a down on the mode switch button
+            if (event.down) {
+                contact->second.mode_button = native_touch_in_button(event);
+            }
+
+            // check for valid position
+            POINT position { event.x, event.y };
+            if (touch_geometry.window != nullptr &&
+                ScreenToClient(touch_geometry.window, &position)) {
+                contact->second.position = position;
+                contact->second.client_position_valid = true;
+            }
+        }
+
+        const auto contact = active_contacts.find(event.id);
+        const bool mode_button_contact = contact != active_contacts.end() &&
+            contact->second.mode_button;
+
+        // process up events
+        if (event.up) {
+            active_contacts.erase(event.id);
+
+            // if a contact that began down event on the mode switch button has
+            // been released, a mode switch is now pending
+            if (mode_button_contact) {
+                mode_change_pending = true;
+            }
+
+            // apply the change on the final hardware up. switching earlier would
+            // split another contact's down and up events across different modes
+            if (mode_change_pending && active_contacts.empty()) {
+                mode_change_pending = false;
+                const auto next_mode = current_mode() == Mode::Nav ? Mode::Piano : Mode::Nav;
+                current_mode_state.store(next_mode, std::memory_order_release);
+            }
+        }
+        return mode_button_contact;
+    }
+
+    // install the Nostalgia-specific native touch interception
+    void enable() {
+        if (accept_events.exchange(true, std::memory_order_acq_rel)) {
+            return;
+        }
+
+        {
+            std::lock_guard<std::mutex> lock(state_mutex);
+            reset_state_locked();
+        }
+
+        nativetouch::set_input_filter(filter_native_touch);
+        log_info("nost::touch", "enabled");
+    }
+
+    void disable() {
+        if (!accept_events.exchange(false, std::memory_order_acq_rel)) {
+            return;
+        }
+
+        nativetouch::set_input_filter(nullptr);
+
+        std::lock_guard<std::mutex> lock(state_mutex);
+        reset_state_locked();
+    }
+
+    bool enabled() {
+        return accept_events.load(std::memory_order_acquire);
+    }
+
+    Mode current_mode() {
+        return current_mode_state.load(std::memory_order_acquire);
+    }
+
+    // publish the rendered overlay button rectangle in game-client pixels
+    void publish_button_bounds(HWND window, const RECT &client_bounds) {
+        TouchGeometry next {};
+        RECT client_rect {};
+        if (window != nullptr && GetClientRect(window, &client_rect) &&
+            client_rect.right > 0 && client_rect.bottom > 0) {
+            next.window = window;
+            next.mode_button = client_bounds;
+            next.client_width = client_rect.right;
+            next.client_height = client_rect.bottom;
+        }
+
+        std::lock_guard<std::mutex> lock(state_mutex);
+        touch_geometry = next;
+    }
+
+    // return the active 28-key piano bitfield for the PANB input update
+    uint32_t piano_key_state() {
+        if (!enabled() || current_mode() != Mode::Piano) {
+            return 0;
+        }
+
+        std::lock_guard<std::mutex> lock(state_mutex);
+        if (current_mode() != Mode::Piano || !touch_geometry.valid()) {
+            return 0;
+        }
+
+        uint32_t state = 0;
+        for (const auto &contact : active_contacts) {
+            // invalid position or mode-button contact; ignore these contacts
+            if (!contact.second.client_position_valid || contact.second.mode_button) {
+                continue;
+            }
+
+            const auto &position = contact.second.position;
+
+            // outside the client area or on the mode button; ignore these contacts
+            if (position.x < 0 || position.x >= touch_geometry.client_width ||
+                position.y < 0 || position.y >= touch_geometry.client_height ||
+                PtInRect(&touch_geometry.mode_button, position)) {
+                continue;
+            }
+
+            // divide the inset width evenly; touches in either side gap clamp to
+            // the nearest outer key so the physical screen edges remain playable
+            const auto piano_width =
+                touch_geometry.client_width - PIANO_LEFT_GAP - PIANO_RIGHT_GAP;
+            uint32_t key = 0;
+            if (position.x >= touch_geometry.client_width - PIANO_RIGHT_GAP) {
+                key = PIANO_KEY_COUNT - 1;
+            } else if (position.x >= PIANO_LEFT_GAP && piano_width > 0) {
+                key = static_cast<uint32_t>(
+                    (position.x - PIANO_LEFT_GAP) * PIANO_KEY_COUNT / piano_width);
+            }
+            state |= UINT32_C(1) << key;
+        }
+
+        return state;
+    }
+
+    // update native contacts and report whether this event should be hidden from the game
+    bool filter_native_touch(const nativetouch::NativeTouchEvent &event) {
+        // synthetic events are outside this hardware-only feature
+        if (!enabled() || event.synthetic) {
+            // false leaves the event visible to the game
+            return false;
+        }
+
+        // snapshot routing before an up event can commit a pending mode switch
+        const bool piano_mode_before_update = current_mode() == Mode::Piano;
+
+        // update the contact lifetime and commit any pending switch when safe
+        const bool mode_button_contact = update_touch_state(event);
+
+        // hide every event in a contact that began on the mode switch button
+        if (mode_button_contact) {
+            return true;
+        }
+
+        // piano mode consumes hardware events; nav mode forwards them to the game
+        return piano_mode_before_update;
+    }
+}
@@ -1,27 +1,27 @@
-#pragma once
-
-#include <cstdint>
-#include <windows.h>
-
-#include "touch/native/nativetouchhook.h"
-
-namespace games::nost::touch_mode {
-
-    // nav mode forwards contacts to the game; piano mode converts them into piano keys
-    enum class Mode {
-        Nav,
-        Piano,
-    };
-
-    void enable();
-    void disable();
-    bool enabled();
-
-    Mode current_mode();
-
-    void publish_button_bounds(HWND window, const RECT &client_bounds);
-
-    uint32_t piano_key_state();
-
-    bool filter_native_touch(const nativetouch::NativeTouchEvent &event);
-}
+#pragma once
+
+#include <cstdint>
+#include <windows.h>
+
+#include "touch/native/nativetouchhook.h"
+
+namespace games::nost::touch_mode {
+
+    // nav mode forwards contacts to the game; piano mode converts them into piano keys
+    enum class Mode {
+        Nav,
+        Piano,
+    };
+
+    void enable();
+    void disable();
+    bool enabled();
+
+    Mode current_mode();
+
+    void publish_button_bounds(HWND window, const RECT &client_bounds);
+
+    uint32_t piano_key_state();
+
+    bool filter_native_touch(const nativetouch::NativeTouchEvent &event);
+}
@@ -16,6 +16,7 @@
 #include "launcher/launcher.h"
 #include "launcher/logger.h"
 #include "misc/eamuse.h"
+#include "misc/wintouchemu.h"
 #include "util/sysutils.h"
 #include "io.h"
 #include "util/deferlog.h"
@@ -24,6 +25,7 @@
 namespace games::popn {

    bool SHOW_PIKA_MONITOR_WARNING = false;
+    bool NATIVE_TOUCH = true;
    
 #if SPICE64 && !SPICE_XP

@@ -713,7 +715,18 @@ namespace games::popn {
        //       00000100 0000000B 00000001  (button 9)
        //       set third column to 0 and it will work with BIO2
        
-        nativetouch::hook(avs::game::DLL_INSTANCE);
+        NATIVE_TOUCH = !wintouchemu::FORCE &&
+            nativetouch::hook(avs::game::DLL_INSTANCE);
+        if (!NATIVE_TOUCH) {
+            wintouchemu::FORCE = true;
+            if (!GRAPHICS_WINDOWED || GRAPHICS_PREVENT_SECONDARY_WINDOWS) {
+                wintouchemu::INJECT_MOUSE_AS_WM_TOUCH = true;
+                wintouchemu::hook_title_ends(
+                    "",
+                    "Main Screen",
+                    avs::game::DLL_INSTANCE);
+            }
+        }

        sysutils::hook_EnumDisplayDevicesA();

@@ -22,6 +22,7 @@ namespace games::popn {
 #endif

    extern bool SHOW_PIKA_MONITOR_WARNING;
+    extern bool NATIVE_TOUCH;

    class POPNGame : public games::Game {
    public:
@@ -1,143 +1,143 @@
-#include "touch_debug.h"
-
-#include <array>
-#include <atomic>
-#include <cstring>
-#include <mutex>
-
-#include "external/imgui/imgui.h"
-#include "games/rb/rb.h"
-#include "games/rb/touch_defs.h"
-
-namespace games::rb {
-
-    struct TouchDebugState {
-        std::array<unsigned char, TOUCH_PACKET_SIZE> packet {};
-        bool is_landscape = false;
-    };
-
-    std::atomic_bool TOUCH_DEBUG_OVERLAY = false;
-    static std::atomic_bool TOUCH_ACTIVE = false;
-    static std::mutex TOUCH_DEBUG_STATE_M;
-    static TouchDebugState TOUCH_DEBUG_STATE;
-
-    static float touch_scale_factor() {
-        return TOUCH_SCALING / (float) TOUCH_SCALE_DEFAULT;
-    }
-
-    static void clear_touch_debug_state() {
-        std::lock_guard<std::mutex> lock(TOUCH_DEBUG_STATE_M);
-        TOUCH_DEBUG_STATE = {};
-    }
-
-    static TouchDebugState get_touch_debug_state() {
-        std::lock_guard<std::mutex> lock(TOUCH_DEBUG_STATE_M);
-        return TOUCH_DEBUG_STATE;
-    }
-
-    static bool packet_bit_active(
-            const std::array<unsigned char, TOUCH_PACKET_SIZE> &packet, int bit) {
-        return (packet[TOUCH_PACKET_DATA_OFFSET + bit / 8] & (1u << (bit % 8))) != 0;
-    }
-
-    static int sensor_center(int sensor, int sensor_count, int extent) {
-        return ((sensor * 2 + 1) * extent) / (sensor_count * 2);
-    }
-
-    static float sensor_span_position(int sensor, int sensor_count, int extent) {
-        return sensor * (extent - 1) / (float) (sensor_count - 1);
-    }
-
-    bool touch_debug_overlay_enabled() {
-        return TOUCH_DEBUG_OVERLAY && TOUCH_ACTIVE.load(std::memory_order_acquire);
-    }
-
-    void touch_draw_debug_overlay() {
-        if (!touch_debug_overlay_enabled()) {
-            return;
-        }
-
-        const auto &io = ImGui::GetIO();
-        int width = static_cast<int>(io.DisplaySize.x);
-        int height = static_cast<int>(io.DisplaySize.y);
-        if (width <= 0 || height <= 0) {
-            return;
-        }
-
-        const float scale_factor = touch_scale_factor();
-        const float left = width * (1.f - scale_factor) / 2.f;
-        const float top = height * (1.f - scale_factor) / 2.f;
-        const float right = width - left;
-        const float bottom = height - top;
-
-        TouchDebugState state = get_touch_debug_state();
-        ImDrawList *draw_list = ImGui::GetBackgroundDrawList();
-        auto draw_line = [&](float x1, float y1, float x2, float y2) {
-            draw_list->AddLine(
-                ImVec2(x1, y1), ImVec2(x2, y2),
-                IM_COL32(0, 255, 64, 255), 2.f);
-        };
-
-        // show the valid input area when touch scaling restricts it
-        if (TOUCH_SCALING != TOUCH_SCALE_DEFAULT) {
-            draw_list->AddRect(
-                ImVec2(left, top), ImVec2(right, bottom),
-                IM_COL32(255, 255, 255, 255), 0.f, 0, 2.f);
-        }
-
-        // spread the usable X sensors 2..45 from edge to edge
-        for (int sensor = X_SENSOR_FIRST_ACTIVE; sensor <= X_SENSOR_LAST_ACTIVE; sensor++) {
-            if (!packet_bit_active(state.packet, X_SENSOR_FIRST_BIT + sensor)) {
-                continue;
-            }
-
-            float position = sensor_span_position(
-                sensor - X_SENSOR_FIRST_ACTIVE, X_SENSOR_ACTIVE_COUNT,
-                state.is_landscape ? height : width);
-            if (state.is_landscape) {
-                float y = top + position * scale_factor;
-                draw_line(left, y, right, y);
-            } else {
-                float x = left + position * scale_factor;
-                draw_line(x, top, x, bottom);
-            }
-        }
-
-        for (int sensor = 0; sensor < Y_SENSOR_COUNT; sensor++) {
-            if (!packet_bit_active(state.packet, Y_SENSOR_FIRST_BIT - sensor)) {
-                continue;
-            }
-
-            int position = sensor_center(
-                sensor, Y_SENSOR_COUNT,
-                state.is_landscape ? width : height);
-            if (state.is_landscape) {
-                float x = right - position * scale_factor;
-                draw_line(x, top, x, bottom);
-            } else {
-                float y = top + position * scale_factor;
-                draw_line(left, y, right, y);
-            }
-        }
-    }
-
-    void touch_debug_attach() {
-        clear_touch_debug_state();
-        TOUCH_ACTIVE.store(true, std::memory_order_release);
-    }
-
-    void touch_debug_detach() {
-        TOUCH_ACTIVE.store(false, std::memory_order_release);
-        clear_touch_debug_state();
-    }
-
-    void touch_debug_publish(const unsigned char *data, bool is_landscape) {
-        if (!TOUCH_DEBUG_OVERLAY) {
-            return;
-        }
-
-        std::lock_guard<std::mutex> lock(TOUCH_DEBUG_STATE_M);
-        memcpy(TOUCH_DEBUG_STATE.packet.data(), data, TOUCH_PACKET_SIZE);
-        TOUCH_DEBUG_STATE.is_landscape = is_landscape;
-    }
-}
+#include "touch_debug.h"
+
+#include <array>
+#include <atomic>
+#include <cstring>
+#include <mutex>
+
+#include "external/imgui/imgui.h"
+#include "games/rb/rb.h"
+#include "games/rb/touch_defs.h"
+
+namespace games::rb {
+
+    struct TouchDebugState {
+        std::array<unsigned char, TOUCH_PACKET_SIZE> packet {};
+        bool is_landscape = false;
+    };
+
+    std::atomic_bool TOUCH_DEBUG_OVERLAY = false;
+    static std::atomic_bool TOUCH_ACTIVE = false;
+    static std::mutex TOUCH_DEBUG_STATE_M;
+    static TouchDebugState TOUCH_DEBUG_STATE;
+
+    static float touch_scale_factor() {
+        return TOUCH_SCALING / (float) TOUCH_SCALE_DEFAULT;
+    }
+
+    static void clear_touch_debug_state() {
+        std::lock_guard<std::mutex> lock(TOUCH_DEBUG_STATE_M);
+        TOUCH_DEBUG_STATE = {};
+    }
+
+    static TouchDebugState get_touch_debug_state() {
+        std::lock_guard<std::mutex> lock(TOUCH_DEBUG_STATE_M);
+        return TOUCH_DEBUG_STATE;
+    }
+
+    static bool packet_bit_active(
+            const std::array<unsigned char, TOUCH_PACKET_SIZE> &packet, int bit) {
+        return (packet[TOUCH_PACKET_DATA_OFFSET + bit / 8] & (1u << (bit % 8))) != 0;
+    }
+
+    static int sensor_center(int sensor, int sensor_count, int extent) {
+        return ((sensor * 2 + 1) * extent) / (sensor_count * 2);
+    }
+
+    static float sensor_span_position(int sensor, int sensor_count, int extent) {
+        return sensor * (extent - 1) / (float) (sensor_count - 1);
+    }
+
+    bool touch_debug_overlay_enabled() {
+        return TOUCH_DEBUG_OVERLAY && TOUCH_ACTIVE.load(std::memory_order_acquire);
+    }
+
+    void touch_draw_debug_overlay() {
+        if (!touch_debug_overlay_enabled()) {
+            return;
+        }
+
+        const auto &io = ImGui::GetIO();
+        int width = static_cast<int>(io.DisplaySize.x);
+        int height = static_cast<int>(io.DisplaySize.y);
+        if (width <= 0 || height <= 0) {
+            return;
+        }
+
+        const float scale_factor = touch_scale_factor();
+        const float left = width * (1.f - scale_factor) / 2.f;
+        const float top = height * (1.f - scale_factor) / 2.f;
+        const float right = width - left;
+        const float bottom = height - top;
+
+        TouchDebugState state = get_touch_debug_state();
+        ImDrawList *draw_list = ImGui::GetBackgroundDrawList();
+        auto draw_line = [&](float x1, float y1, float x2, float y2) {
+            draw_list->AddLine(
+                ImVec2(x1, y1), ImVec2(x2, y2),
+                IM_COL32(0, 255, 64, 255), 2.f);
+        };
+
+        // show the valid input area when touch scaling restricts it
+        if (TOUCH_SCALING != TOUCH_SCALE_DEFAULT) {
+            draw_list->AddRect(
+                ImVec2(left, top), ImVec2(right, bottom),
+                IM_COL32(255, 255, 255, 255), 0.f, 0, 2.f);
+        }
+
+        // spread the usable X sensors 2..45 from edge to edge
+        for (int sensor = X_SENSOR_FIRST_ACTIVE; sensor <= X_SENSOR_LAST_ACTIVE; sensor++) {
+            if (!packet_bit_active(state.packet, X_SENSOR_FIRST_BIT + sensor)) {
+                continue;
+            }
+
+            float position = sensor_span_position(
+                sensor - X_SENSOR_FIRST_ACTIVE, X_SENSOR_ACTIVE_COUNT,
+                state.is_landscape ? height : width);
+            if (state.is_landscape) {
+                float y = top + position * scale_factor;
+                draw_line(left, y, right, y);
+            } else {
+                float x = left + position * scale_factor;
+                draw_line(x, top, x, bottom);
+            }
+        }
+
+        for (int sensor = 0; sensor < Y_SENSOR_COUNT; sensor++) {
+            if (!packet_bit_active(state.packet, Y_SENSOR_FIRST_BIT - sensor)) {
+                continue;
+            }
+
+            int position = sensor_center(
+                sensor, Y_SENSOR_COUNT,
+                state.is_landscape ? width : height);
+            if (state.is_landscape) {
+                float x = right - position * scale_factor;
+                draw_line(x, top, x, bottom);
+            } else {
+                float y = top + position * scale_factor;
+                draw_line(left, y, right, y);
+            }
+        }
+    }
+
+    void touch_debug_attach() {
+        clear_touch_debug_state();
+        TOUCH_ACTIVE.store(true, std::memory_order_release);
+    }
+
+    void touch_debug_detach() {
+        TOUCH_ACTIVE.store(false, std::memory_order_release);
+        clear_touch_debug_state();
+    }
+
+    void touch_debug_publish(const unsigned char *data, bool is_landscape) {
+        if (!TOUCH_DEBUG_OVERLAY) {
+            return;
+        }
+
+        std::lock_guard<std::mutex> lock(TOUCH_DEBUG_STATE_M);
+        memcpy(TOUCH_DEBUG_STATE.packet.data(), data, TOUCH_PACKET_SIZE);
+        TOUCH_DEBUG_STATE.is_landscape = is_landscape;
+    }
+}
@@ -1,14 +1,14 @@
-#pragma once
-
-#include <atomic>
-
-namespace games::rb {
-    extern std::atomic_bool TOUCH_DEBUG_OVERLAY;
-
-    bool touch_debug_overlay_enabled();
-    void touch_draw_debug_overlay();
-
-    void touch_debug_attach();
-    void touch_debug_detach();
-    void touch_debug_publish(const unsigned char *data, bool is_landscape);
-}
+#pragma once
+
+#include <atomic>
+
+namespace games::rb {
+    extern std::atomic_bool TOUCH_DEBUG_OVERLAY;
+
+    bool touch_debug_overlay_enabled();
+    void touch_draw_debug_overlay();
+
+    void touch_debug_attach();
+    void touch_debug_detach();
+    void touch_debug_publish(const unsigned char *data, bool is_landscape);
+}
@@ -1,17 +1,17 @@
-#pragma once
-
-namespace games::rb {
-    inline constexpr int TOUCH_SCALE_DEFAULT = 1000;
-    inline constexpr int TOUCH_PACKET_SIZE = 20;
-    inline constexpr int TOUCH_PACKET_DATA_OFFSET = 3;
-
-    inline constexpr int X_SENSOR_COUNT = 48;
-    inline constexpr int X_SENSOR_FIRST_ACTIVE = 2;
-    inline constexpr int X_SENSOR_LAST_ACTIVE = 45;
-    inline constexpr int X_SENSOR_ACTIVE_COUNT =
-        X_SENSOR_LAST_ACTIVE - X_SENSOR_FIRST_ACTIVE + 1;
-    inline constexpr int X_SENSOR_FIRST_BIT = 88;
-
-    inline constexpr int Y_SENSOR_COUNT = 76;
-    inline constexpr int Y_SENSOR_FIRST_BIT = 75;
-}
+#pragma once
+
+namespace games::rb {
+    inline constexpr int TOUCH_SCALE_DEFAULT = 1000;
+    inline constexpr int TOUCH_PACKET_SIZE = 20;
+    inline constexpr int TOUCH_PACKET_DATA_OFFSET = 3;
+
+    inline constexpr int X_SENSOR_COUNT = 48;
+    inline constexpr int X_SENSOR_FIRST_ACTIVE = 2;
+    inline constexpr int X_SENSOR_LAST_ACTIVE = 45;
+    inline constexpr int X_SENSOR_ACTIVE_COUNT =
+        X_SENSOR_LAST_ACTIVE - X_SENSOR_FIRST_ACTIVE + 1;
+    inline constexpr int X_SENSOR_FIRST_BIT = 88;
+
+    inline constexpr int Y_SENSOR_COUNT = 76;
+    inline constexpr int Y_SENSOR_FIRST_BIT = 75;
+}
@@ -3,6 +3,7 @@
 #if SPICE64

 #include <cstdint>
+#include "api/client.h"
 #include "util/detour.h"
 #include "util/logging.h"
 #include "util/utils.h"
@@ -349,43 +350,29 @@ namespace games::sdvx {
         * 9 - v unit - 258 bytes - 86 colors
         *
         * data is stored in RGB order, 3 bytes per color
-         *
-         * TODO: expose this data via API
         */

-        // data mapping
-        static struct TapeLedMapping {
-            size_t data_size;
-            int index_r, index_g, index_b;
-
-            TapeLedMapping(size_t data_size, int index_r, int index_g, int index_b)
-                    : data_size(data_size), index_r(index_r), index_g(index_g), index_b(index_b) {}
-
-        } mapping[] = {
-                { 74, Lights::TITLE_AVG_R, Lights::TITLE_AVG_G, Lights::TITLE_AVG_B },
-                { 12, Lights::UPPER_LEFT_SPEAKER_AVG_R, Lights::UPPER_LEFT_SPEAKER_AVG_G, Lights::UPPER_LEFT_SPEAKER_AVG_B },
-                { 12, Lights::UPPER_RIGHT_SPEAKER_AVG_R, Lights::UPPER_RIGHT_SPEAKER_AVG_G, Lights::UPPER_RIGHT_SPEAKER_AVG_B },
-                { 56, Lights::LEFT_WING_AVG_R, Lights::LEFT_WING_AVG_G, Lights::LEFT_WING_AVG_B },
-                { 56, Lights::RIGHT_WING_AVG_R, Lights::RIGHT_WING_AVG_G, Lights::RIGHT_WING_AVG_B },
-                { 94, Lights::CONTROL_PANEL_AVG_R, Lights::CONTROL_PANEL_AVG_G, Lights::CONTROL_PANEL_AVG_B },
-                { 12, Lights::LOWER_LEFT_SPEAKER_AVG_R, Lights::LOWER_LEFT_SPEAKER_AVG_G, Lights::LOWER_LEFT_SPEAKER_AVG_B },
-                { 12, Lights::LOWER_RIGHT_SPEAKER_AVG_R, Lights::LOWER_RIGHT_SPEAKER_AVG_G, Lights::LOWER_RIGHT_SPEAKER_AVG_B },
-                { 14, Lights::WOOFER_AVG_R, Lights::WOOFER_AVG_G, Lights::WOOFER_AVG_B },
-                { 86, Lights::V_UNIT_AVG_R, Lights::V_UNIT_AVG_G, Lights::V_UNIT_AVG_B },
-        };
-
        // check index bounds
-        if (tapeledutils::is_enabled() && index < std::size(mapping)) {
-            auto &map = mapping[index];
+        if (tapeledutils::is_enabled() && index < std::size(TAPELED_MAPPING)) {
+            auto &map = TAPELED_MAPPING[index];
+            const auto data_size = map.data.size();

            // pick a color to use
-            const auto rgb = tapeledutils::pick_color_from_led_tape(data, map.data_size);
+            const auto rgb = tapeledutils::pick_color_from_led_tape(data, data_size);

            // program the lights into API
            auto &lights = get_lights();
            GameAPI::Lights::writeLight(RI_MGR, lights[map.index_r], rgb.r);
            GameAPI::Lights::writeLight(RI_MGR, lights[map.index_g], rgb.g);
            GameAPI::Lights::writeLight(RI_MGR, lights[map.index_b], rgb.b);
+
+            if (api::has_clients()) {
+                for (size_t i = 0; i < data_size; ++i) {
+                    map.data[i].r = data[i * 3];
+                    map.data[i].g = data[i * 3 + 1];
+                    map.data[i].b = data[i * 3 + 2];
+                }
+            }
        }

        if (This != custom_node) {
@@ -26,6 +26,7 @@
 #include "util/libutils.h"
 #include "util/sysutils.h"
 #include "misc/eamuse.h"
+#include "misc/wintouchemu.h"
 #include "touch/native/nativetouchhook.h"
 #include "bi2x_hook.h"
 #include "camera.h"
@@ -60,6 +61,19 @@ namespace games::sdvx {
    static HKEY real_asio_reg_handle = nullptr;
    static HKEY real_asio_device_reg_handle = nullptr;

+    tapeledutils::tape_led TAPELED_MAPPING[SDVX_TAPELED_TOTAL] = {
+        { 74, Lights::TITLE_AVG_R, Lights::TITLE_AVG_G, Lights::TITLE_AVG_B, "Title" },
+        { 12, Lights::UPPER_LEFT_SPEAKER_AVG_R, Lights::UPPER_LEFT_SPEAKER_AVG_G, Lights::UPPER_LEFT_SPEAKER_AVG_B, "Upper Left Speaker" },
+        { 12, Lights::UPPER_RIGHT_SPEAKER_AVG_R, Lights::UPPER_RIGHT_SPEAKER_AVG_G, Lights::UPPER_RIGHT_SPEAKER_AVG_B, "Upper Right Speaker" },
+        { 56, Lights::LEFT_WING_AVG_R, Lights::LEFT_WING_AVG_G, Lights::LEFT_WING_AVG_B, "Left Wing" },
+        { 56, Lights::RIGHT_WING_AVG_R, Lights::RIGHT_WING_AVG_G, Lights::RIGHT_WING_AVG_B, "Right Wing" },
+        { 94, Lights::CONTROL_PANEL_AVG_R, Lights::CONTROL_PANEL_AVG_G, Lights::CONTROL_PANEL_AVG_B, "Control Panel" },
+        { 12, Lights::LOWER_LEFT_SPEAKER_AVG_R, Lights::LOWER_LEFT_SPEAKER_AVG_G, Lights::LOWER_LEFT_SPEAKER_AVG_B, "Lower Left Speaker" },
+        { 12, Lights::LOWER_RIGHT_SPEAKER_AVG_R, Lights::LOWER_RIGHT_SPEAKER_AVG_G, Lights::LOWER_RIGHT_SPEAKER_AVG_B, "Lower Right Speaker" },
+        { 14, Lights::WOOFER_AVG_R, Lights::WOOFER_AVG_G, Lights::WOOFER_AVG_B, "Woofer" },
+        { 86, Lights::V_UNIT_AVG_R, Lights::V_UNIT_AVG_G, Lights::V_UNIT_AVG_B, "V Unit" },
+    };
+
    static LONG WINAPI RegOpenKeyA_hook(HKEY hKey, LPCSTR lpSubKey, PHKEY phkResult) {
        if (lpSubKey != nullptr &&
            phkResult != nullptr &&
@@ -453,7 +467,18 @@ namespace games::sdvx {
            }

            if (is_valkyrie_model()) {
-                nativetouch::hook(avs::game::DLL_INSTANCE);
+                const auto native_touch_ready = !wintouchemu::FORCE &&
+                    nativetouch::hook(avs::game::DLL_INSTANCE);
+                if (!native_touch_ready) {
+                    wintouchemu::FORCE = true;
+                    if (!GRAPHICS_WINDOWED) {
+                        wintouchemu::INJECT_MOUSE_AS_WM_TOUCH = true;
+                        wintouchemu::hook_title_ends(
+                            "SOUND VOLTEX",
+                            "Main Screen",
+                            avs::game::DLL_INSTANCE);
+                    }
+                }

                // insert BI2X hooks
                bi2x_hook_init();
@@ -6,6 +6,7 @@

 #include "avs/game.h"
 #include "games/game.h"
+#include "util/tapeled.h"

 namespace games::sdvx {

@@ -25,6 +26,9 @@ namespace games::sdvx {
    // states
    extern bool SHOW_VM_MONITOR_WARNING;

+    constexpr int SDVX_TAPELED_TOTAL = 10;
+    extern tapeledutils::tape_led TAPELED_MAPPING[SDVX_TAPELED_TOTAL];
+
    static inline bool is_valkyrie_model() {
        return (
            avs::game::is_model("KFC") &&
@@ -1,72 +1,72 @@
-#include "sdvx_live2d.h"
-
-// only the Live2D-capable SDVX versions are 64-bit, so the whole feature is
-// compiled out of 32-bit builds.
-#ifdef SPICE64
-
-#include <string>
-
-#include "hooks/graphics/graphics.h"
-#include "launcher/logger.h"
-#include "util/logging.h"
-
-namespace games::sdvx {
-
-    // Live2D in-game scene detection (for the -sdvxnolive2d "ingame" option).
-    //
-    // the game logs scene transitions as "I:Attach: in <SCENE>" / "I:Detach: in
-    // <SCENE>". several scenes correspond to in-song gameplay (with the heavy
-    // Live2D rendering); we watch those log lines and keep the shared flag
-    // the d3d9 backend reads up to date. the hook never alters the log output
-    // (always returns false).
-    static bool live2d_scene_log_hook(
-            void *user, const std::string &data, logger::Style style, std::string &out) {
-        // any of these scenes counts as in-song gameplay (different play modes)
-        static const char *const gameplay_scenes[] = {
-            "in ALTERNATIVE_GAME_SCENE",
-            "in MEGAMIX_GAME_SCENE",
-            "in MEGAMIX_BATTLE",
-            "in BATTLE_GAME_SCENE",
-            "in AUTOMATION_GAME_SCENE",
-            "in ARENA_GAME_SCENE",
-        };
-        bool in_gameplay_scene = false;
-        for (const auto *scene : gameplay_scenes) {
-            if (data.find(scene) != std::string::npos) {
-                in_gameplay_scene = true;
-                break;
-            }
-        }
-        if (!in_gameplay_scene) {
-            return false;
-        }
-        // note: log messages here must NOT contain any matched scene token, else
-        // this hook would re-enter itself when the message is pushed.
-        if (data.find("I:Attach: in ") != std::string::npos) {
-            if (!GRAPHICS_SDVX_LIVE2D_IN_GAMEPLAY.exchange(true, std::memory_order_relaxed)) {
-                log_info("sdvx", "Live2D skip: entering gameplay");
-            }
-        } else if (data.find("I:Detach: in ") != std::string::npos) {
-            if (GRAPHICS_SDVX_LIVE2D_IN_GAMEPLAY.exchange(false, std::memory_order_relaxed)) {
-                log_info("sdvx", "Live2D skip: leaving gameplay");
-            }
-        }
-        return false;
-    }
-
-    void live2d_scene_detection_init() {
-        static bool installed = false;
-        if (installed) {
-            return;
-        }
-        installed = true;
-        // the logger's hook list is a persistent static, so registering here is
-        // safe even though this runs before logger::start(). we intentionally do
-        // NOT log a confirmation now: at this point the log file isn't open yet
-        // and the message would be dropped. the entering/leaving-gameplay lines
-        // above provide runtime confirmation once the logger is running.
-        logger::hook_add(live2d_scene_log_hook, nullptr);
-    }
-}
-
-#endif // SPICE64
+#include "sdvx_live2d.h"
+
+// only the Live2D-capable SDVX versions are 64-bit, so the whole feature is
+// compiled out of 32-bit builds.
+#ifdef SPICE64
+
+#include <string>
+
+#include "hooks/graphics/graphics.h"
+#include "launcher/logger.h"
+#include "util/logging.h"
+
+namespace games::sdvx {
+
+    // Live2D in-game scene detection (for the -sdvxnolive2d "ingame" option).
+    //
+    // the game logs scene transitions as "I:Attach: in <SCENE>" / "I:Detach: in
+    // <SCENE>". several scenes correspond to in-song gameplay (with the heavy
+    // Live2D rendering); we watch those log lines and keep the shared flag
+    // the d3d9 backend reads up to date. the hook never alters the log output
+    // (always returns false).
+    static bool live2d_scene_log_hook(
+            void *user, const std::string &data, logger::Style style, std::string &out) {
+        // any of these scenes counts as in-song gameplay (different play modes)
+        static const char *const gameplay_scenes[] = {
+            "in ALTERNATIVE_GAME_SCENE",
+            "in MEGAMIX_GAME_SCENE",
+            "in MEGAMIX_BATTLE",
+            "in BATTLE_GAME_SCENE",
+            "in AUTOMATION_GAME_SCENE",
+            "in ARENA_GAME_SCENE",
+        };
+        bool in_gameplay_scene = false;
+        for (const auto *scene : gameplay_scenes) {
+            if (data.find(scene) != std::string::npos) {
+                in_gameplay_scene = true;
+                break;
+            }
+        }
+        if (!in_gameplay_scene) {
+            return false;
+        }
+        // note: log messages here must NOT contain any matched scene token, else
+        // this hook would re-enter itself when the message is pushed.
+        if (data.find("I:Attach: in ") != std::string::npos) {
+            if (!GRAPHICS_SDVX_LIVE2D_IN_GAMEPLAY.exchange(true, std::memory_order_relaxed)) {
+                log_info("sdvx", "Live2D skip: entering gameplay");
+            }
+        } else if (data.find("I:Detach: in ") != std::string::npos) {
+            if (GRAPHICS_SDVX_LIVE2D_IN_GAMEPLAY.exchange(false, std::memory_order_relaxed)) {
+                log_info("sdvx", "Live2D skip: leaving gameplay");
+            }
+        }
+        return false;
+    }
+
+    void live2d_scene_detection_init() {
+        static bool installed = false;
+        if (installed) {
+            return;
+        }
+        installed = true;
+        // the logger's hook list is a persistent static, so registering here is
+        // safe even though this runs before logger::start(). we intentionally do
+        // NOT log a confirmation now: at this point the log file isn't open yet
+        // and the message would be dropped. the entering/leaving-gameplay lines
+        // above provide runtime confirmation once the logger is running.
+        logger::hook_add(live2d_scene_log_hook, nullptr);
+    }
+}
+
+#endif // SPICE64
@@ -1,14 +1,14 @@
-#pragma once
-
-namespace games::sdvx {
-
-#ifdef SPICE64
-    // installs the Live2D in-game scene-detection log hook used by the
-    // -sdvxnolive2d "ingame" option. does not require the SDVX game module to
-    // be attached, so it can be enabled purely from the launcher option.
-    // only the Live2D-capable SDVX versions are 64-bit, so this is compiled out
-    // of 32-bit builds.
-    void live2d_scene_detection_init();
-#endif
-
-}
+#pragma once
+
+namespace games::sdvx {
+
+#ifdef SPICE64
+    // installs the Live2D in-game scene-detection log hook used by the
+    // -sdvxnolive2d "ingame" option. does not require the SDVX game module to
+    // be attached, so it can be enabled purely from the launcher option.
+    // only the Live2D-capable SDVX versions are 64-bit, so this is compiled out
+    // of 32-bit builds.
+    void live2d_scene_detection_init();
+#endif
+
+}
@@ -1,84 +1,84 @@
-#include "asio_driver_scan.h"
-
-#include <algorithm>
-
-#include <windows.h>
-
-#include "util/utils.h"
-
-namespace hooks::audio {
-
-    static constexpr char ASIO_REG_PATH[] = "software\\asio";
-    static constexpr char ASIO_REG_DESC[] = "description";
-
-    // enumerate a single registry view, appending to entries while merging
-    // duplicates discovered in another view. Drivers are matched by name (not
-    // CLSID): the game's ASIO loader selects drivers by name, and some vendors
-    // register the same CLSID under different 32-bit/64-bit names (e.g. "XONAR
-    // SOUND CARD" vs "XONAR SOUND CARD(64)"), which are distinct user choices.
-    static void scan_view(
-            REGSAM wow64_flag,
-            bool is_64bit,
-            std::vector<AsioDriverScanEntry> &entries) {
-
-        HKEY hkEnum = nullptr;
-        if (RegOpenKeyExA(HKEY_LOCAL_MACHINE, ASIO_REG_PATH, 0,
-                KEY_READ | wow64_flag, &hkEnum) != ERROR_SUCCESS) {
-            return;
-        }
-
-        char key_name[256];
-        for (DWORD index = 0;
-             RegEnumKeyA(hkEnum, index, key_name, sizeof(key_name)) == ERROR_SUCCESS;
-             index++) {
-
-            // read description (display name), fall back to the key name.
-            // RegOpenKeyExA + RegQueryValueExA is used instead of RegGetValueA
-            // because the latter is unavailable on Windows XP.
-            char desc[256] = { 0 };
-            DWORD size = sizeof(desc);
-            std::string name = key_name;
-            HKEY hkDriver = nullptr;
-            if (RegOpenKeyExA(hkEnum, key_name, 0,
-                    KEY_QUERY_VALUE | wow64_flag, &hkDriver) == ERROR_SUCCESS) {
-                DWORD type = 0;
-                if (RegQueryValueExA(hkDriver,
-                                     ASIO_REG_DESC,
-                                     nullptr,
-                                     &type,
-                                     reinterpret_cast<LPBYTE>(desc),
-                                     &size) == ERROR_SUCCESS
-                        && type == REG_SZ && desc[0]) {
-                    // ensure null termination
-                    desc[sizeof(desc) - 1] = '\0';
-                    name = desc;
-                }
-                RegCloseKey(hkDriver);
-            }
-
-            // merge with an existing entry from the other view (match by name)
-            const std::string name_lower = strtolower(name);
-            auto it = std::find_if(entries.begin(), entries.end(), [&](const auto &e) {
-                return strtolower(e.name) == name_lower;
-            });
-            if (it == entries.end()) {
-                entries.push_back({ name });
-                it = entries.end() - 1;
-            }
-            it->found_32bit |= !is_64bit;
-            it->found_64bit |= is_64bit;
-        }
-
-        RegCloseKey(hkEnum);
-    }
-
-    std::vector<AsioDriverScanEntry> scan_asio_drivers() {
-        std::vector<AsioDriverScanEntry> entries;
-
-        // 64-bit view first so it wins ordering when present in both
-        scan_view(KEY_WOW64_64KEY, true, entries);
-        scan_view(KEY_WOW64_32KEY, false, entries);
-
-        return entries;
-    }
-}
+#include "asio_driver_scan.h"
+
+#include <algorithm>
+
+#include <windows.h>
+
+#include "util/utils.h"
+
+namespace hooks::audio {
+
+    static constexpr char ASIO_REG_PATH[] = "software\\asio";
+    static constexpr char ASIO_REG_DESC[] = "description";
+
+    // enumerate a single registry view, appending to entries while merging
+    // duplicates discovered in another view. Drivers are matched by name (not
+    // CLSID): the game's ASIO loader selects drivers by name, and some vendors
+    // register the same CLSID under different 32-bit/64-bit names (e.g. "XONAR
+    // SOUND CARD" vs "XONAR SOUND CARD(64)"), which are distinct user choices.
+    static void scan_view(
+            REGSAM wow64_flag,
+            bool is_64bit,
+            std::vector<AsioDriverScanEntry> &entries) {
+
+        HKEY hkEnum = nullptr;
+        if (RegOpenKeyExA(HKEY_LOCAL_MACHINE, ASIO_REG_PATH, 0,
+                KEY_READ | wow64_flag, &hkEnum) != ERROR_SUCCESS) {
+            return;
+        }
+
+        char key_name[256];
+        for (DWORD index = 0;
+             RegEnumKeyA(hkEnum, index, key_name, sizeof(key_name)) == ERROR_SUCCESS;
+             index++) {
+
+            // read description (display name), fall back to the key name.
+            // RegOpenKeyExA + RegQueryValueExA is used instead of RegGetValueA
+            // because the latter is unavailable on Windows XP.
+            char desc[256] = { 0 };
+            DWORD size = sizeof(desc);
+            std::string name = key_name;
+            HKEY hkDriver = nullptr;
+            if (RegOpenKeyExA(hkEnum, key_name, 0,
+                    KEY_QUERY_VALUE | wow64_flag, &hkDriver) == ERROR_SUCCESS) {
+                DWORD type = 0;
+                if (RegQueryValueExA(hkDriver,
+                                     ASIO_REG_DESC,
+                                     nullptr,
+                                     &type,
+                                     reinterpret_cast<LPBYTE>(desc),
+                                     &size) == ERROR_SUCCESS
+                        && type == REG_SZ && desc[0]) {
+                    // ensure null termination
+                    desc[sizeof(desc) - 1] = '\0';
+                    name = desc;
+                }
+                RegCloseKey(hkDriver);
+            }
+
+            // merge with an existing entry from the other view (match by name)
+            const std::string name_lower = strtolower(name);
+            auto it = std::find_if(entries.begin(), entries.end(), [&](const auto &e) {
+                return strtolower(e.name) == name_lower;
+            });
+            if (it == entries.end()) {
+                entries.push_back({ name });
+                it = entries.end() - 1;
+            }
+            it->found_32bit |= !is_64bit;
+            it->found_64bit |= is_64bit;
+        }
+
+        RegCloseKey(hkEnum);
+    }
+
+    std::vector<AsioDriverScanEntry> scan_asio_drivers() {
+        std::vector<AsioDriverScanEntry> entries;
+
+        // 64-bit view first so it wins ordering when present in both
+        scan_view(KEY_WOW64_64KEY, true, entries);
+        scan_view(KEY_WOW64_32KEY, false, entries);
+
+        return entries;
+    }
+}
@@ -1,15 +1,15 @@
-#pragma once
-
-#include <string>
-#include <vector>
-
-namespace hooks::audio {
-
-    struct AsioDriverScanEntry {
-        std::string name;
-        bool found_32bit = false;
-        bool found_64bit = false;
-    };
-
-    std::vector<AsioDriverScanEntry> scan_asio_drivers();
-}
+#pragma once
+
+#include <string>
+#include <vector>
+
+namespace hooks::audio {
+
+    struct AsioDriverScanEntry {
+        std::string name;
+        bool found_32bit = false;
+        bool found_64bit = false;
+    };
+
+    std::vector<AsioDriverScanEntry> scan_asio_drivers();
+}
@@ -1,240 +1,240 @@
-#pragma once
-
-#include <atomic>
-#include <memory>
-#include <string>
-#include <vector>
-
-#include <windows.h>
-
-#include "external/asio/asio.h"
-#include "external/asio/iasiodrv.h"
-
-namespace hooks::audio::asio {
-
-    // returns true if a CoCreateInstance call is instantiating a registered ASIO driver.
-    // ASIO hosts pass the driver CLSID as both class id and interface id; we also validate
-    // it against the system's registered ASIO drivers to avoid false positives
-    bool is_asio_creation(REFCLSID rclsid, REFIID riid);
-
-    // wrap a real ASIO driver instance, taking ownership of the supplied reference, and
-    // return a proxy that forwards every call to it. also records it as the cached
-    // instance for its CLSID so later CoCreate calls can reuse it (see wrap_existing)
-    IUnknown *wrap(REFCLSID clsid, void *real);
-
-    // if a cached wrapper already exists for this CLSID, return it (with an added
-    // reference); otherwise nullptr to signal the caller to create the real driver and
-    // wrap it. lets the host reuse one driver instance instead of re-instantiating it
-    IUnknown *wrap_existing(REFCLSID clsid);
-
-    // drop the process-lifetime references taken by wrap() so cached drivers can be released
-    // at shutdown. only relinquishes our pin, so a real driver is torn down once the host
-    // has released its own references too. call from a controlled shutdown point, never from
-    // a static destructor (the driver DLL may already be unloaded)
-    void release_all_wrappers();
-}
-
-// transparent proxy around a real ASIO driver; a single place to intercept ASIO traffic
-struct WrappedAsio final : IAsio {
-    WrappedAsio(IAsio *real, REFCLSID clsid, std::string name)
-        : pReal(real), clsid(clsid), driver_name(std::move(name)) {
-    }
-
-    WrappedAsio(const WrappedAsio &) = delete;
-    WrappedAsio &operator=(const WrappedAsio &) = delete;
-
-    virtual ~WrappedAsio();
-
-    // selects which source channel pair of a multichannel ASIO output reaches the device's
-    // 2.0 front pair. when not None, the proxy presents the game's expected multichannel
-    // layout to the host so it proceeds to create_buffers, then opens only a two-channel
-    // stream on the real device and routes the selected pair onto it (see create_buffers).
-    // Front is the plain "force two channel" case (forward the device's own front pair);
-    // the others copy a different pair onto 0/1. assumes a standard 7.1 layout (0-indexed).
-    // set once at boot, before any wrapper exists, so it needs no synchronization
-    enum class StereoDownmix {
-        None,   // feature disabled - full multichannel passthrough
-        Front,  // channels 0/1 - the device front pair is forwarded as-is (no copy)
-        Center, // channel 2 duplicated to both 0 and 1
-        Rear,   // channels 4/5 -> 0/1
-        Side,   // channels 6/7 -> 0/1
-    };
-    static StereoDownmix STEREO_DOWNMIX;
-
-    // true when a stereo extraction is configured, i.e. the real device should open a 2.0
-    // stream and only the selected pair should reach it. the former standalone
-    // FORCE_TWO_CHANNELS flag is now just the Front case of this
-    static bool force_two_channels() {
-        return STEREO_DOWNMIX != StereoDownmix::None;
-    }
-
-    // some games hardcode a multichannel ASIO output and bail before create_buffers if
-    // get_channels reports fewer, so we report at least this many output channels when a
-    // stereo extraction is active
-    static constexpr long FORCED_OUTPUT_CHANNELS = 8;
-
-    // maps an option string ("front", "center", "rear", "side") to a StereoDownmix value,
-    // returning None for anything unrecognized
-    static StereoDownmix name_to_stereo_downmix(const char *name);
-
-#pragma region IUnknown
-    HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **ppv) override;
-    ULONG STDMETHODCALLTYPE AddRef() override;
-    ULONG STDMETHODCALLTYPE Release() override;
-#pragma endregion
-
-#pragma region IAsio
-    AsioBool __thiscall init(void *sys_handle) override;
-    void __thiscall get_driver_name(char *name) override;
-    long __thiscall get_driver_version() override;
-    void __thiscall get_error_message(char *string) override;
-    AsioError __thiscall start() override;
-    AsioError __thiscall stop() override;
-    AsioError __thiscall get_channels(long *num_input_channels, long *num_output_channels) override;
-    AsioError __thiscall get_latencies(long *input_latency, long *output_latency) override;
-    AsioError __thiscall get_buffer_size(
-        long *min_size,
-        long *max_size,
-        long *preferred_size,
-        long *granularity) override;
-    AsioError __thiscall can_sample_rate(AsioSampleRate sample_rate) override;
-    AsioError __thiscall get_sample_rate(AsioSampleRate *sample_rate) override;
-    AsioError __thiscall set_sample_rate(AsioSampleRate sample_rate) override;
-    AsioError __thiscall get_clock_sources(ASIOClockSource *clocks, long *num_sources) override;
-    AsioError __thiscall set_clock_source(long reference) override;
-    AsioError __thiscall get_sample_position(ASIOSamples *s_pos, ASIOTimeStamp *t_stamp) override;
-    AsioError __thiscall get_channel_info(AsioChannelInfo *info) override;
-    AsioError __thiscall create_buffers(
-        AsioBufferInfo *buffer_infos,
-        long num_channels,
-        long buffer_size,
-        AsioCallbacks *callbacks) override;
-    AsioError __thiscall dispose_buffers() override;
-    AsioError __thiscall control_panel() override;
-    AsioError __thiscall future(long selector, void *opt) override;
-    AsioError __thiscall output_ready() override;
-#pragma endregion
-
-    // quiesces any leftover stream/buffer state before the cached wrapper is handed back
-    // for reuse, without destroying the real driver (see wrap_existing)
-    void quiesce_for_reuse();
-
-private:
-    // create_buffers implementation used when a stereo extraction is active: forwards only
-    // the channels the real device has and hands the game throwaway buffers for the rest
-    AsioError create_buffers_front_pair(
-        AsioBufferInfo *buffer_infos,
-        long num_channels,
-        long buffer_size,
-        AsioCallbacks *callbacks);
-
-    // if any post-processing effect (volume boost or stereo downmix) is active, saves the
-    // game's callbacks and returns a proxy callback set (our buffer-switch trampolines) to
-    // hand the real driver instead, so we can rework its output buffers after the game
-    // fills them. otherwise returns the game's callbacks unchanged. called at create_buffers
-    // time, before the stream starts
-    AsioCallbacks *install_proxy_callbacks(AsioCallbacks *game_callbacks);
-
-    // records a device output channel whose buffers we scale by the volume boost. queries
-    // the real driver for the channel's sample format. called at create_buffers time
-    void record_volume_output_channel(const AsioBufferInfo &info);
-
-    // the real device's output sample format, queried from its first output channel. all
-    // output channels of a device share one format, so this characterizes them all. returns
-    // ASIOSTLastEntry if the device has no output channels or the query fails
-    AsioSampleType device_output_sample_type();
-
-    // locates the destination pair (device channels 0/1) and the configured source channels
-    // in the game's buffer set so the realtime path can copy the selected pair onto 0/1.
-    // a no-op unless STEREO_DOWNMIX selects a non-front pair. called at create_buffers time
-    void record_downmix_channels(AsioBufferInfo *buffer_infos, long num_channels, long buffer_size);
-
-    // publishes the captured post-process state to the realtime thread once the buffers
-    // exist, making our trampolines start reworking output. called at the end of either
-    // create_buffers path
-    void publish_post_process(long buffer_size);
-
-    // detaches this instance from the realtime trampolines so they stop touching its
-    // buffers. called from dispose_buffers and the destructor
-    void detach_post_process();
-
-    // multiplies every recorded output channel's buffer for the given double-buffer index
-    // by the volume boost. runs on the driver's realtime thread from our buffer switch
-    void apply_output_volume(long double_buffer_index);
-
-    // copies the configured source channel pair onto device channels 0/1 for the given
-    // double-buffer index. runs on the driver's realtime thread from our buffer switch
-    void apply_downmix(long double_buffer_index);
-
-    // realtime-thread trampolines for the buffer-switch callbacks, handed to the real
-    // driver in place of the game's; ASIO callbacks carry no user data, so they reach the
-    // active wrapper through active_instance, call the game's original, then rework output.
-    // the other two callbacks (sample_rate_did_change, asio_message) are forwarded as the
-    // game's own pointers, so they need no trampoline
-    static void __cdecl proxy_buffer_switch(long double_buffer_index, AsioBool direct_process);
-    static AsioTime * __cdecl proxy_buffer_switch_time_info(
-        AsioTime *params, long double_buffer_index, AsioBool direct_process);
-
-    // the single wrapper whose proxy callbacks are installed (ASIO is single-instance with
-    // one running stream); read by the static trampolines to reach the right wrapper
-    static std::atomic<WrappedAsio *> active_instance;
-
-    IAsio *const pReal;
-    const CLSID clsid;
-
-    // registry name of the driver (not get_driver_name), used in our logs as a single
-    // unambiguous name; constant for our lifetime
-    std::string driver_name;
-
-    // the real driver is initialized exactly once; repeat init() calls are a no-op success
-    bool initialized = false;
-
-    // whether the real driver currently has a buffer set / running stream. used to quiesce
-    // leftover state when the cached wrapper is reused (see quiesce_for_reuse)
-    bool buffers_created = false;
-    bool started = false;
-
-    // our own reference count; we hold one reference on pReal and release it when this
-    // drops to zero
-    std::atomic<ULONG> ref_count {1};
-
-    // throwaway double buffers handed to the channels we discard when a stereo extraction
-    // is active (see create_buffers). owned for the lifetime of the buffer set and freed
-    // in dispose_buffers; only read by the game from its own bufferSwitch, never by us
-    std::vector<std::unique_ptr<uint8_t[]>> dummy_buffers;
-
-    // one device output channel scaled by the volume boost in our buffer switch
-    struct VolumeOutputChannel {
-        void *buffers[2];
-        AsioSampleType type;
-    };
-
-    // the game's original callbacks (captured when we install our proxy set) and the proxy
-    // set we hand the real driver; the realtime trampolines reach the game's buffer_switch
-    // through game_callbacks regardless of which effect is active
-    AsioCallbacks game_callbacks {};
-    AsioCallbacks proxy_callbacks {};
-
-    // volume boost state, captured at create_buffers time and published to the realtime
-    // thread via active_instance once fully built; untouched while the stream runs.
-    // volume_active gates whether the realtime path scales any buffers
-    bool volume_active = false;
-    float volume_gain = 1.0f;
-    long volume_buffer_size = 0;
-    std::vector<VolumeOutputChannel> volume_channels;
-
-    // one device channel (0 or 1) fed by a source channel during stereo downmix; both
-    // buffer pointers are indexed by the ASIO double-buffer index, the same as the channels
-    struct DownmixCopy {
-        void *dst[2];
-        void *src[2];
-    };
-
-    // stereo downmix state, captured at create_buffers time and published alongside the
-    // volume state; untouched while the stream runs. downmix_active gates whether the
-    // realtime path copies the selected source pair onto device channels 0/1. copies[0]
-    // feeds device channel 0, copies[1] feeds device channel 1
-    bool downmix_active = false;
-    DownmixCopy downmix_copies[2] {};
-    size_t downmix_bytes = 0;
-};
+#pragma once
+
+#include <atomic>
+#include <memory>
+#include <string>
+#include <vector>
+
+#include <windows.h>
+
+#include "external/asio/asio.h"
+#include "external/asio/iasiodrv.h"
+
+namespace hooks::audio::asio {
+
+    // returns true if a CoCreateInstance call is instantiating a registered ASIO driver.
+    // ASIO hosts pass the driver CLSID as both class id and interface id; we also validate
+    // it against the system's registered ASIO drivers to avoid false positives
+    bool is_asio_creation(REFCLSID rclsid, REFIID riid);
+
+    // wrap a real ASIO driver instance, taking ownership of the supplied reference, and
+    // return a proxy that forwards every call to it. also records it as the cached
+    // instance for its CLSID so later CoCreate calls can reuse it (see wrap_existing)
+    IUnknown *wrap(REFCLSID clsid, void *real);
+
+    // if a cached wrapper already exists for this CLSID, return it (with an added
+    // reference); otherwise nullptr to signal the caller to create the real driver and
+    // wrap it. lets the host reuse one driver instance instead of re-instantiating it
+    IUnknown *wrap_existing(REFCLSID clsid);
+
+    // drop the process-lifetime references taken by wrap() so cached drivers can be released
+    // at shutdown. only relinquishes our pin, so a real driver is torn down once the host
+    // has released its own references too. call from a controlled shutdown point, never from
+    // a static destructor (the driver DLL may already be unloaded)
+    void release_all_wrappers();
+}
+
+// transparent proxy around a real ASIO driver; a single place to intercept ASIO traffic
+struct WrappedAsio final : IAsio {
+    WrappedAsio(IAsio *real, REFCLSID clsid, std::string name)
+        : pReal(real), clsid(clsid), driver_name(std::move(name)) {
+    }
+
+    WrappedAsio(const WrappedAsio &) = delete;
+    WrappedAsio &operator=(const WrappedAsio &) = delete;
+
+    virtual ~WrappedAsio();
+
+    // selects which source channel pair of a multichannel ASIO output reaches the device's
+    // 2.0 front pair. when not None, the proxy presents the game's expected multichannel
+    // layout to the host so it proceeds to create_buffers, then opens only a two-channel
+    // stream on the real device and routes the selected pair onto it (see create_buffers).
+    // Front is the plain "force two channel" case (forward the device's own front pair);
+    // the others copy a different pair onto 0/1. assumes a standard 7.1 layout (0-indexed).
+    // set once at boot, before any wrapper exists, so it needs no synchronization
+    enum class StereoDownmix {
+        None,   // feature disabled - full multichannel passthrough
+        Front,  // channels 0/1 - the device front pair is forwarded as-is (no copy)
+        Center, // channel 2 duplicated to both 0 and 1
+        Rear,   // channels 4/5 -> 0/1
+        Side,   // channels 6/7 -> 0/1
+    };
+    static StereoDownmix STEREO_DOWNMIX;
+
+    // true when a stereo extraction is configured, i.e. the real device should open a 2.0
+    // stream and only the selected pair should reach it. the former standalone
+    // FORCE_TWO_CHANNELS flag is now just the Front case of this
+    static bool force_two_channels() {
+        return STEREO_DOWNMIX != StereoDownmix::None;
+    }
+
+    // some games hardcode a multichannel ASIO output and bail before create_buffers if
+    // get_channels reports fewer, so we report at least this many output channels when a
+    // stereo extraction is active
+    static constexpr long FORCED_OUTPUT_CHANNELS = 8;
+
+    // maps an option string ("front", "center", "rear", "side") to a StereoDownmix value,
+    // returning None for anything unrecognized
+    static StereoDownmix name_to_stereo_downmix(const char *name);
+
+#pragma region IUnknown
+    HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **ppv) override;
+    ULONG STDMETHODCALLTYPE AddRef() override;
+    ULONG STDMETHODCALLTYPE Release() override;
+#pragma endregion
+
+#pragma region IAsio
+    AsioBool __thiscall init(void *sys_handle) override;
+    void __thiscall get_driver_name(char *name) override;
+    long __thiscall get_driver_version() override;
+    void __thiscall get_error_message(char *string) override;
+    AsioError __thiscall start() override;
+    AsioError __thiscall stop() override;
+    AsioError __thiscall get_channels(long *num_input_channels, long *num_output_channels) override;
+    AsioError __thiscall get_latencies(long *input_latency, long *output_latency) override;
+    AsioError __thiscall get_buffer_size(
+        long *min_size,
+        long *max_size,
+        long *preferred_size,
+        long *granularity) override;
+    AsioError __thiscall can_sample_rate(AsioSampleRate sample_rate) override;
+    AsioError __thiscall get_sample_rate(AsioSampleRate *sample_rate) override;
+    AsioError __thiscall set_sample_rate(AsioSampleRate sample_rate) override;
+    AsioError __thiscall get_clock_sources(ASIOClockSource *clocks, long *num_sources) override;
+    AsioError __thiscall set_clock_source(long reference) override;
+    AsioError __thiscall get_sample_position(ASIOSamples *s_pos, ASIOTimeStamp *t_stamp) override;
+    AsioError __thiscall get_channel_info(AsioChannelInfo *info) override;
+    AsioError __thiscall create_buffers(
+        AsioBufferInfo *buffer_infos,
+        long num_channels,
+        long buffer_size,
+        AsioCallbacks *callbacks) override;
+    AsioError __thiscall dispose_buffers() override;
+    AsioError __thiscall control_panel() override;
+    AsioError __thiscall future(long selector, void *opt) override;
+    AsioError __thiscall output_ready() override;
+#pragma endregion
+
+    // quiesces any leftover stream/buffer state before the cached wrapper is handed back
+    // for reuse, without destroying the real driver (see wrap_existing)
+    void quiesce_for_reuse();
+
+private:
+    // create_buffers implementation used when a stereo extraction is active: forwards only
+    // the channels the real device has and hands the game throwaway buffers for the rest
+    AsioError create_buffers_front_pair(
+        AsioBufferInfo *buffer_infos,
+        long num_channels,
+        long buffer_size,
+        AsioCallbacks *callbacks);
+
+    // if any post-processing effect (volume boost or stereo downmix) is active, saves the
+    // game's callbacks and returns a proxy callback set (our buffer-switch trampolines) to
+    // hand the real driver instead, so we can rework its output buffers after the game
+    // fills them. otherwise returns the game's callbacks unchanged. called at create_buffers
+    // time, before the stream starts
+    AsioCallbacks *install_proxy_callbacks(AsioCallbacks *game_callbacks);
+
+    // records a device output channel whose buffers we scale by the volume boost. queries
+    // the real driver for the channel's sample format. called at create_buffers time
+    void record_volume_output_channel(const AsioBufferInfo &info);
+
+    // the real device's output sample format, queried from its first output channel. all
+    // output channels of a device share one format, so this characterizes them all. returns
+    // ASIOSTLastEntry if the device has no output channels or the query fails
+    AsioSampleType device_output_sample_type();
+
+    // locates the destination pair (device channels 0/1) and the configured source channels
+    // in the game's buffer set so the realtime path can copy the selected pair onto 0/1.
+    // a no-op unless STEREO_DOWNMIX selects a non-front pair. called at create_buffers time
+    void record_downmix_channels(AsioBufferInfo *buffer_infos, long num_channels, long buffer_size);
+
+    // publishes the captured post-process state to the realtime thread once the buffers
+    // exist, making our trampolines start reworking output. called at the end of either
+    // create_buffers path
+    void publish_post_process(long buffer_size);
+
+    // detaches this instance from the realtime trampolines so they stop touching its
+    // buffers. called from dispose_buffers and the destructor
+    void detach_post_process();
+
+    // multiplies every recorded output channel's buffer for the given double-buffer index
+    // by the volume boost. runs on the driver's realtime thread from our buffer switch
+    void apply_output_volume(long double_buffer_index);
+
+    // copies the configured source channel pair onto device channels 0/1 for the given
+    // double-buffer index. runs on the driver's realtime thread from our buffer switch
+    void apply_downmix(long double_buffer_index);
+
+    // realtime-thread trampolines for the buffer-switch callbacks, handed to the real
+    // driver in place of the game's; ASIO callbacks carry no user data, so they reach the
+    // active wrapper through active_instance, call the game's original, then rework output.
+    // the other two callbacks (sample_rate_did_change, asio_message) are forwarded as the
+    // game's own pointers, so they need no trampoline
+    static void __cdecl proxy_buffer_switch(long double_buffer_index, AsioBool direct_process);
+    static AsioTime * __cdecl proxy_buffer_switch_time_info(
+        AsioTime *params, long double_buffer_index, AsioBool direct_process);
+
+    // the single wrapper whose proxy callbacks are installed (ASIO is single-instance with
+    // one running stream); read by the static trampolines to reach the right wrapper
+    static std::atomic<WrappedAsio *> active_instance;
+
+    IAsio *const pReal;
+    const CLSID clsid;
+
+    // registry name of the driver (not get_driver_name), used in our logs as a single
+    // unambiguous name; constant for our lifetime
+    std::string driver_name;
+
+    // the real driver is initialized exactly once; repeat init() calls are a no-op success
+    bool initialized = false;
+
+    // whether the real driver currently has a buffer set / running stream. used to quiesce
+    // leftover state when the cached wrapper is reused (see quiesce_for_reuse)
+    bool buffers_created = false;
+    bool started = false;
+
+    // our own reference count; we hold one reference on pReal and release it when this
+    // drops to zero
+    std::atomic<ULONG> ref_count {1};
+
+    // throwaway double buffers handed to the channels we discard when a stereo extraction
+    // is active (see create_buffers). owned for the lifetime of the buffer set and freed
+    // in dispose_buffers; only read by the game from its own bufferSwitch, never by us
+    std::vector<std::unique_ptr<uint8_t[]>> dummy_buffers;
+
+    // one device output channel scaled by the volume boost in our buffer switch
+    struct VolumeOutputChannel {
+        void *buffers[2];
+        AsioSampleType type;
+    };
+
+    // the game's original callbacks (captured when we install our proxy set) and the proxy
+    // set we hand the real driver; the realtime trampolines reach the game's buffer_switch
+    // through game_callbacks regardless of which effect is active
+    AsioCallbacks game_callbacks {};
+    AsioCallbacks proxy_callbacks {};
+
+    // volume boost state, captured at create_buffers time and published to the realtime
+    // thread via active_instance once fully built; untouched while the stream runs.
+    // volume_active gates whether the realtime path scales any buffers
+    bool volume_active = false;
+    float volume_gain = 1.0f;
+    long volume_buffer_size = 0;
+    std::vector<VolumeOutputChannel> volume_channels;
+
+    // one device channel (0 or 1) fed by a source channel during stereo downmix; both
+    // buffer pointers are indexed by the ASIO double-buffer index, the same as the channels
+    struct DownmixCopy {
+        void *dst[2];
+        void *src[2];
+    };
+
+    // stereo downmix state, captured at create_buffers time and published alongside the
+    // volume state; untouched while the stream runs. downmix_active gates whether the
+    // realtime path copies the selected source pair onto device channels 0/1. copies[0]
+    // feeds device channel 0, copies[1] feeds device channel 1
+    bool downmix_active = false;
+    DownmixCopy downmix_copies[2] {};
+    size_t downmix_bytes = 0;
+};
@@ -1,43 +1,43 @@
-#pragma once
-
-#include <stdint.h>
-#include <endpointvolume.h>
-
-struct WrappedIAudioEndpointVolume : IAudioEndpointVolume {
-    explicit WrappedIAudioEndpointVolume(IAudioEndpointVolume *orig) : pReal(orig) {}
-
-    WrappedIAudioEndpointVolume(const WrappedIAudioEndpointVolume &) = delete;
-    WrappedIAudioEndpointVolume &operator=(const WrappedIAudioEndpointVolume &) = delete;
-
-    virtual ~WrappedIAudioEndpointVolume() = default;
-
-#pragma region IUnknown
-    HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **ppvObj) override;
-    ULONG STDMETHODCALLTYPE AddRef() override;
-    ULONG STDMETHODCALLTYPE Release() override;
-#pragma endregion
-
-#pragma region IAudioEndpointVolume
-    HRESULT STDMETHODCALLTYPE RegisterControlChangeNotify(IAudioEndpointVolumeCallback *pNotify) override;
-    HRESULT STDMETHODCALLTYPE UnregisterControlChangeNotify(IAudioEndpointVolumeCallback *pNotify) override;
-    HRESULT STDMETHODCALLTYPE GetChannelCount(uint32_t *pnChannelCount) override;
-    HRESULT STDMETHODCALLTYPE SetMasterVolumeLevel(float fLevelDB, LPCGUID pguidEventContext) override;
-    HRESULT STDMETHODCALLTYPE SetMasterVolumeLevelScalar(float fLevel, LPCGUID pguidEventContext) override;
-    HRESULT STDMETHODCALLTYPE GetMasterVolumeLevel(float *fLevelDB) override;
-    HRESULT STDMETHODCALLTYPE GetMasterVolumeLevelScalar(float *fLevel) override;
-    HRESULT STDMETHODCALLTYPE SetChannelVolumeLevel(uint32_t nChannel, float fLevelDB, LPCGUID pguidEventContext) override;
-    HRESULT STDMETHODCALLTYPE SetChannelVolumeLevelScalar(uint32_t nChannel, float fLevel, LPCGUID pguidEventContext) override;
-    HRESULT STDMETHODCALLTYPE GetChannelVolumeLevel(uint32_t nChannel, float *fLevelDB) override;
-    HRESULT STDMETHODCALLTYPE GetChannelVolumeLevelScalar(uint32_t nChannel, float *fLevel) override;
-    HRESULT STDMETHODCALLTYPE SetMute(WINBOOL bMute, LPCGUID pguidEventContext) override;
-    HRESULT STDMETHODCALLTYPE GetMute(WINBOOL *bMute) override;
-    HRESULT STDMETHODCALLTYPE GetVolumeStepInfo(uint32_t *pnStep, uint32_t *pnStepCount) override;
-    HRESULT STDMETHODCALLTYPE VolumeStepUp(LPCGUID pguidEventContext) override;
-    HRESULT STDMETHODCALLTYPE VolumeStepDown(LPCGUID pguidEventContext) override;
-    HRESULT STDMETHODCALLTYPE QueryHardwareSupport(DWORD *pdwHardwareSupportMask) override;
-    HRESULT STDMETHODCALLTYPE GetVolumeRange(float *pflVolumeMindB, float *pflVolumeMaxdB, float *pflVolumeIncrementdB) override;
-#pragma endregion
-
-private:
-    IAudioEndpointVolume *const pReal;
+#pragma once
+
+#include <stdint.h>
+#include <endpointvolume.h>
+
+struct WrappedIAudioEndpointVolume : IAudioEndpointVolume {
+    explicit WrappedIAudioEndpointVolume(IAudioEndpointVolume *orig) : pReal(orig) {}
+
+    WrappedIAudioEndpointVolume(const WrappedIAudioEndpointVolume &) = delete;
+    WrappedIAudioEndpointVolume &operator=(const WrappedIAudioEndpointVolume &) = delete;
+
+    virtual ~WrappedIAudioEndpointVolume() = default;
+
+#pragma region IUnknown
+    HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **ppvObj) override;
+    ULONG STDMETHODCALLTYPE AddRef() override;
+    ULONG STDMETHODCALLTYPE Release() override;
+#pragma endregion
+
+#pragma region IAudioEndpointVolume
+    HRESULT STDMETHODCALLTYPE RegisterControlChangeNotify(IAudioEndpointVolumeCallback *pNotify) override;
+    HRESULT STDMETHODCALLTYPE UnregisterControlChangeNotify(IAudioEndpointVolumeCallback *pNotify) override;
+    HRESULT STDMETHODCALLTYPE GetChannelCount(uint32_t *pnChannelCount) override;
+    HRESULT STDMETHODCALLTYPE SetMasterVolumeLevel(float fLevelDB, LPCGUID pguidEventContext) override;
+    HRESULT STDMETHODCALLTYPE SetMasterVolumeLevelScalar(float fLevel, LPCGUID pguidEventContext) override;
+    HRESULT STDMETHODCALLTYPE GetMasterVolumeLevel(float *fLevelDB) override;
+    HRESULT STDMETHODCALLTYPE GetMasterVolumeLevelScalar(float *fLevel) override;
+    HRESULT STDMETHODCALLTYPE SetChannelVolumeLevel(uint32_t nChannel, float fLevelDB, LPCGUID pguidEventContext) override;
+    HRESULT STDMETHODCALLTYPE SetChannelVolumeLevelScalar(uint32_t nChannel, float fLevel, LPCGUID pguidEventContext) override;
+    HRESULT STDMETHODCALLTYPE GetChannelVolumeLevel(uint32_t nChannel, float *fLevelDB) override;
+    HRESULT STDMETHODCALLTYPE GetChannelVolumeLevelScalar(uint32_t nChannel, float *fLevel) override;
+    HRESULT STDMETHODCALLTYPE SetMute(WINBOOL bMute, LPCGUID pguidEventContext) override;
+    HRESULT STDMETHODCALLTYPE GetMute(WINBOOL *bMute) override;
+    HRESULT STDMETHODCALLTYPE GetVolumeStepInfo(uint32_t *pnStep, uint32_t *pnStepCount) override;
+    HRESULT STDMETHODCALLTYPE VolumeStepUp(LPCGUID pguidEventContext) override;
+    HRESULT STDMETHODCALLTYPE VolumeStepDown(LPCGUID pguidEventContext) override;
+    HRESULT STDMETHODCALLTYPE QueryHardwareSupport(DWORD *pdwHardwareSupportMask) override;
+    HRESULT STDMETHODCALLTYPE GetVolumeRange(float *pflVolumeMindB, float *pflVolumeMaxdB, float *pflVolumeIncrementdB) override;
+#pragma endregion
+
+private:
+    IAudioEndpointVolume *const pReal;
 };
@@ -1,185 +1,185 @@
-#include "null_device.h"
-
-#include <atomic>
-#include <cstring>
-
-#include <audioclient.h>
-
-#include "hooks/audio/audio.h"
-#include "hooks/audio/audio_private.h"
-#include "hooks/audio/backends/wasapi/dummy_audio_client.h"
-#include "util/logging.h"
-#include "util/utils.h"
-
-#include "null_discard_backend.h"
-
-// friendly name reported by the synthetic device. must contain "Realtek" so the
-// gitadora arena device search matches it.
-static const wchar_t NULL_DEVICE_FRIENDLY_NAME[] = L"Realtek High Definition Audio";
-
-// arbitrary identifier reported by the synthetic device.
-static const wchar_t NULL_DEVICE_ID[] = L"{spice2x-null-render-device}";
-
-// PKEY_Device_FriendlyName, hardcoded to avoid pulling in functiondiscoverykeys_devpkey.h
-static const PROPERTYKEY PKEY_DEVICE_FRIENDLY_NAME_LOCAL = {
-    { 0xa45c254e, 0xdf1c, 0x4efd, { 0x80, 0x20, 0x67, 0xd1, 0x46, 0xa8, 0x50, 0xe0 } },
-    14
-};
-
-bool null_render_device_enabled() {
-    return hooks::audio::INJECT_FAKE_REALTEK_AUDIO;
-}
-
-// duplicate a wide string into CoTaskMem so the caller can free it with
-// CoTaskMemFree / PropVariantClear as the COM API contract requires.
-static LPWSTR co_task_wcsdup(const wchar_t *src) {
-    const size_t bytes = (wcslen(src) + 1) * sizeof(wchar_t);
-    auto *dst = static_cast<LPWSTR>(CoTaskMemAlloc(bytes));
-    if (dst != nullptr) {
-        memcpy(dst, src, bytes);
-    }
-    return dst;
-}
-
-namespace {
-
-    // minimal IPropertyStore that only answers PKEY_Device_FriendlyName.
-    struct NullPropertyStore : IPropertyStore {
-        std::atomic<ULONG> ref_cnt = 1;
-
-        virtual ~NullPropertyStore() = default;
-
-        HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **ppvObj) override {
-            if (ppvObj == nullptr) {
-                return E_POINTER;
-            }
-            if (riid == __uuidof(IUnknown) || riid == __uuidof(IPropertyStore)) {
-                this->AddRef();
-                *ppvObj = this;
-                return S_OK;
-            }
-            *ppvObj = nullptr;
-            return E_NOINTERFACE;
-        }
-        ULONG STDMETHODCALLTYPE AddRef() override {
-            return ++this->ref_cnt;
-        }
-        ULONG STDMETHODCALLTYPE Release() override {
-            const ULONG refs = --this->ref_cnt;
-            if (refs == 0) {
-                delete this;
-            }
-            return refs;
-        }
-        HRESULT STDMETHODCALLTYPE GetCount(DWORD *cProps) override {
-            if (cProps == nullptr) {
-                return E_POINTER;
-            }
-            *cProps = 1;
-            return S_OK;
-        }
-        HRESULT STDMETHODCALLTYPE GetAt(DWORD iProp, PROPERTYKEY *pkey) override {
-            if (pkey == nullptr) {
-                return E_POINTER;
-            }
-            if (iProp != 0) {
-                return E_INVALIDARG;
-            }
-            *pkey = PKEY_DEVICE_FRIENDLY_NAME_LOCAL;
-            return S_OK;
-        }
-        HRESULT STDMETHODCALLTYPE GetValue(REFPROPERTYKEY key, PROPVARIANT *pv) override {
-            if (pv == nullptr) {
-                return E_POINTER;
-            }
-            PropVariantInit(pv);
-            if (key.fmtid == PKEY_DEVICE_FRIENDLY_NAME_LOCAL.fmtid
-                    && key.pid == PKEY_DEVICE_FRIENDLY_NAME_LOCAL.pid) {
-                pv->pwszVal = co_task_wcsdup(NULL_DEVICE_FRIENDLY_NAME);
-                if (pv->pwszVal == nullptr) {
-                    return E_OUTOFMEMORY;
-                }
-                pv->vt = VT_LPWSTR;
-            }
-            // unknown keys are returned as VT_EMPTY / S_OK
-            return S_OK;
-        }
-        HRESULT STDMETHODCALLTYPE SetValue(REFPROPERTYKEY, REFPROPVARIANT) override {
-            return STG_E_ACCESSDENIED;
-        }
-        HRESULT STDMETHODCALLTYPE Commit() override {
-            return S_OK;
-        }
-    };
-}
-
-#pragma region IUnknown
-HRESULT STDMETHODCALLTYPE NullMMDevice::QueryInterface(REFIID riid, void **ppvObj) {
-    if (ppvObj == nullptr) {
-        return E_POINTER;
-    }
-    if (riid == __uuidof(IUnknown) || riid == __uuidof(IMMDevice)) {
-        this->AddRef();
-        *ppvObj = this;
-        return S_OK;
-    }
-    *ppvObj = nullptr;
-    return E_NOINTERFACE;
-}
-ULONG STDMETHODCALLTYPE NullMMDevice::AddRef() {
-    return ++this->ref_cnt;
-}
-ULONG STDMETHODCALLTYPE NullMMDevice::Release() {
-    const ULONG refs = --this->ref_cnt;
-    if (refs == 0) {
-        delete this;
-    }
-    return refs;
-}
-#pragma endregion
-
-#pragma region IMMDevice
-HRESULT STDMETHODCALLTYPE NullMMDevice::Activate(
-    REFIID iid,
-    DWORD,
-    PROPVARIANT *,
-    void **ppInterface)
-{
-    if (ppInterface == nullptr) {
-        return E_POINTER;
-    }
-    *ppInterface = nullptr;
-
-    log_info("audio::null", "NullMMDevice::Activate {}", guid2s(iid));
-
-    if (iid == IID_IAudioClient) {
-        auto *client = static_cast<IAudioClient *>(new DummyIAudioClient(new NullDiscardBackend()));
-        *ppInterface = client;
-
-        return S_OK;
-    }
-
-    return E_NOINTERFACE;
-}
-HRESULT STDMETHODCALLTYPE NullMMDevice::OpenPropertyStore(DWORD, IPropertyStore **ppProperties) {
-    if (ppProperties == nullptr) {
-        return E_POINTER;
-    }
-    *ppProperties = new NullPropertyStore();
-    return S_OK;
-}
-HRESULT STDMETHODCALLTYPE NullMMDevice::GetId(LPWSTR *ppstrId) {
-    if (ppstrId == nullptr) {
-        return E_POINTER;
-    }
-    *ppstrId = co_task_wcsdup(NULL_DEVICE_ID);
-    return *ppstrId != nullptr ? S_OK : E_OUTOFMEMORY;
-}
-HRESULT STDMETHODCALLTYPE NullMMDevice::GetState(DWORD *pdwState) {
-    if (pdwState == nullptr) {
-        return E_POINTER;
-    }
-    *pdwState = DEVICE_STATE_ACTIVE;
-    return S_OK;
-}
-#pragma endregion
+#include "null_device.h"
+
+#include <atomic>
+#include <cstring>
+
+#include <audioclient.h>
+
+#include "hooks/audio/audio.h"
+#include "hooks/audio/audio_private.h"
+#include "hooks/audio/backends/wasapi/dummy_audio_client.h"
+#include "util/logging.h"
+#include "util/utils.h"
+
+#include "null_discard_backend.h"
+
+// friendly name reported by the synthetic device. must contain "Realtek" so the
+// gitadora arena device search matches it.
+static const wchar_t NULL_DEVICE_FRIENDLY_NAME[] = L"Realtek High Definition Audio";
+
+// arbitrary identifier reported by the synthetic device.
+static const wchar_t NULL_DEVICE_ID[] = L"{spice2x-null-render-device}";
+
+// PKEY_Device_FriendlyName, hardcoded to avoid pulling in functiondiscoverykeys_devpkey.h
+static const PROPERTYKEY PKEY_DEVICE_FRIENDLY_NAME_LOCAL = {
+    { 0xa45c254e, 0xdf1c, 0x4efd, { 0x80, 0x20, 0x67, 0xd1, 0x46, 0xa8, 0x50, 0xe0 } },
+    14
+};
+
+bool null_render_device_enabled() {
+    return hooks::audio::INJECT_FAKE_REALTEK_AUDIO;
+}
+
+// duplicate a wide string into CoTaskMem so the caller can free it with
+// CoTaskMemFree / PropVariantClear as the COM API contract requires.
+static LPWSTR co_task_wcsdup(const wchar_t *src) {
+    const size_t bytes = (wcslen(src) + 1) * sizeof(wchar_t);
+    auto *dst = static_cast<LPWSTR>(CoTaskMemAlloc(bytes));
+    if (dst != nullptr) {
+        memcpy(dst, src, bytes);
+    }
+    return dst;
+}
+
+namespace {
+
+    // minimal IPropertyStore that only answers PKEY_Device_FriendlyName.
+    struct NullPropertyStore : IPropertyStore {
+        std::atomic<ULONG> ref_cnt = 1;
+
+        virtual ~NullPropertyStore() = default;
+
+        HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **ppvObj) override {
+            if (ppvObj == nullptr) {
+                return E_POINTER;
+            }
+            if (riid == __uuidof(IUnknown) || riid == __uuidof(IPropertyStore)) {
+                this->AddRef();
+                *ppvObj = this;
+                return S_OK;
+            }
+            *ppvObj = nullptr;
+            return E_NOINTERFACE;
+        }
+        ULONG STDMETHODCALLTYPE AddRef() override {
+            return ++this->ref_cnt;
+        }
+        ULONG STDMETHODCALLTYPE Release() override {
+            const ULONG refs = --this->ref_cnt;
+            if (refs == 0) {
+                delete this;
+            }
+            return refs;
+        }
+        HRESULT STDMETHODCALLTYPE GetCount(DWORD *cProps) override {
+            if (cProps == nullptr) {
+                return E_POINTER;
+            }
+            *cProps = 1;
+            return S_OK;
+        }
+        HRESULT STDMETHODCALLTYPE GetAt(DWORD iProp, PROPERTYKEY *pkey) override {
+            if (pkey == nullptr) {
+                return E_POINTER;
+            }
+            if (iProp != 0) {
+                return E_INVALIDARG;
+            }
+            *pkey = PKEY_DEVICE_FRIENDLY_NAME_LOCAL;
+            return S_OK;
+        }
+        HRESULT STDMETHODCALLTYPE GetValue(REFPROPERTYKEY key, PROPVARIANT *pv) override {
+            if (pv == nullptr) {
+                return E_POINTER;
+            }
+            PropVariantInit(pv);
+            if (key.fmtid == PKEY_DEVICE_FRIENDLY_NAME_LOCAL.fmtid
+                    && key.pid == PKEY_DEVICE_FRIENDLY_NAME_LOCAL.pid) {
+                pv->pwszVal = co_task_wcsdup(NULL_DEVICE_FRIENDLY_NAME);
+                if (pv->pwszVal == nullptr) {
+                    return E_OUTOFMEMORY;
+                }
+                pv->vt = VT_LPWSTR;
+            }
+            // unknown keys are returned as VT_EMPTY / S_OK
+            return S_OK;
+        }
+        HRESULT STDMETHODCALLTYPE SetValue(REFPROPERTYKEY, REFPROPVARIANT) override {
+            return STG_E_ACCESSDENIED;
+        }
+        HRESULT STDMETHODCALLTYPE Commit() override {
+            return S_OK;
+        }
+    };
+}
+
+#pragma region IUnknown
+HRESULT STDMETHODCALLTYPE NullMMDevice::QueryInterface(REFIID riid, void **ppvObj) {
+    if (ppvObj == nullptr) {
+        return E_POINTER;
+    }
+    if (riid == __uuidof(IUnknown) || riid == __uuidof(IMMDevice)) {
+        this->AddRef();
+        *ppvObj = this;
+        return S_OK;
+    }
+    *ppvObj = nullptr;
+    return E_NOINTERFACE;
+}
+ULONG STDMETHODCALLTYPE NullMMDevice::AddRef() {
+    return ++this->ref_cnt;
+}
+ULONG STDMETHODCALLTYPE NullMMDevice::Release() {
+    const ULONG refs = --this->ref_cnt;
+    if (refs == 0) {
+        delete this;
+    }
+    return refs;
+}
+#pragma endregion
+
+#pragma region IMMDevice
+HRESULT STDMETHODCALLTYPE NullMMDevice::Activate(
+    REFIID iid,
+    DWORD,
+    PROPVARIANT *,
+    void **ppInterface)
+{
+    if (ppInterface == nullptr) {
+        return E_POINTER;
+    }
+    *ppInterface = nullptr;
+
+    log_info("audio::null", "NullMMDevice::Activate {}", guid2s(iid));
+
+    if (iid == IID_IAudioClient) {
+        auto *client = static_cast<IAudioClient *>(new DummyIAudioClient(new NullDiscardBackend()));
+        *ppInterface = client;
+
+        return S_OK;
+    }
+
+    return E_NOINTERFACE;
+}
+HRESULT STDMETHODCALLTYPE NullMMDevice::OpenPropertyStore(DWORD, IPropertyStore **ppProperties) {
+    if (ppProperties == nullptr) {
+        return E_POINTER;
+    }
+    *ppProperties = new NullPropertyStore();
+    return S_OK;
+}
+HRESULT STDMETHODCALLTYPE NullMMDevice::GetId(LPWSTR *ppstrId) {
+    if (ppstrId == nullptr) {
+        return E_POINTER;
+    }
+    *ppstrId = co_task_wcsdup(NULL_DEVICE_ID);
+    return *ppstrId != nullptr ? S_OK : E_OUTOFMEMORY;
+}
+HRESULT STDMETHODCALLTYPE NullMMDevice::GetState(DWORD *pdwState) {
+    if (pdwState == nullptr) {
+        return E_POINTER;
+    }
+    *pdwState = DEVICE_STATE_ACTIVE;
+    return S_OK;
+}
+#pragma endregion
@@ -1,39 +1,39 @@
-#pragma once
-
-#include <atomic>
-
-#include <mmdeviceapi.h>
-
-// returns true when a synthetic render endpoint should be injected into device
-// enumeration. games like gitadora arena search the render endpoint list for a
-// device whose friendly name contains "Realtek" and crash with a null pointer
-// dereference when no match exists. presenting a fake match that routes to the
-// null audio backend lets the search succeed while discarding the audio.
-bool null_render_device_enabled();
-
-// fake IMMDevice that reports a "Realtek" friendly name and activates straight
-// into the null audio backend, never touching real hardware.
-struct NullMMDevice : IMMDevice {
-    NullMMDevice() = default;
-
-    NullMMDevice(const NullMMDevice &) = delete;
-    NullMMDevice &operator=(const NullMMDevice &) = delete;
-
-    virtual ~NullMMDevice() = default;
-
-#pragma region IUnknown
-    HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **ppvObj) override;
-    ULONG STDMETHODCALLTYPE AddRef() override;
-    ULONG STDMETHODCALLTYPE Release() override;
-#pragma endregion
-
-#pragma region IMMDevice
-    HRESULT STDMETHODCALLTYPE Activate(REFIID iid, DWORD dwClsCtx, PROPVARIANT *pActivationParams, void **ppInterface) override;
-    HRESULT STDMETHODCALLTYPE OpenPropertyStore(DWORD stgmAccess, IPropertyStore **ppProperties) override;
-    HRESULT STDMETHODCALLTYPE GetId(LPWSTR *ppstrId) override;
-    HRESULT STDMETHODCALLTYPE GetState(DWORD *pdwState) override;
-#pragma endregion
-
-private:
-    std::atomic<ULONG> ref_cnt = 1;
-};
+#pragma once
+
+#include <atomic>
+
+#include <mmdeviceapi.h>
+
+// returns true when a synthetic render endpoint should be injected into device
+// enumeration. games like gitadora arena search the render endpoint list for a
+// device whose friendly name contains "Realtek" and crash with a null pointer
+// dereference when no match exists. presenting a fake match that routes to the
+// null audio backend lets the search succeed while discarding the audio.
+bool null_render_device_enabled();
+
+// fake IMMDevice that reports a "Realtek" friendly name and activates straight
+// into the null audio backend, never touching real hardware.
+struct NullMMDevice : IMMDevice {
+    NullMMDevice() = default;
+
+    NullMMDevice(const NullMMDevice &) = delete;
+    NullMMDevice &operator=(const NullMMDevice &) = delete;
+
+    virtual ~NullMMDevice() = default;
+
+#pragma region IUnknown
+    HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **ppvObj) override;
+    ULONG STDMETHODCALLTYPE AddRef() override;
+    ULONG STDMETHODCALLTYPE Release() override;
+#pragma endregion
+
+#pragma region IMMDevice
+    HRESULT STDMETHODCALLTYPE Activate(REFIID iid, DWORD dwClsCtx, PROPVARIANT *pActivationParams, void **ppInterface) override;
+    HRESULT STDMETHODCALLTYPE OpenPropertyStore(DWORD stgmAccess, IPropertyStore **ppProperties) override;
+    HRESULT STDMETHODCALLTYPE GetId(LPWSTR *ppstrId) override;
+    HRESULT STDMETHODCALLTYPE GetState(DWORD *pdwState) override;
+#pragma endregion
+
+private:
+    std::atomic<ULONG> ref_cnt = 1;
+};
@@ -1,141 +1,139 @@
-#include "null_discard_backend.h"
-
-#include <algorithm>
-#include <chrono>
-
-#include "hooks/audio/util.h"
-#include "util/logging.h"
-#include "util/precise_timer.h"
-
-NullDiscardBackend::~NullDiscardBackend() {
-    this->running = false;
-    if (this->pacing_thread.joinable()) {
-        this->pacing_thread.join();
-    }
-}
-
-const WAVEFORMATEXTENSIBLE &NullDiscardBackend::format() const noexcept {
-    return this->format_;
-}
-
-HRESULT NullDiscardBackend::on_initialize(
-    AUDCLNT_SHAREMODE *,
-    DWORD *,
-    REFERENCE_TIME *hnsBufferDuration,
-    REFERENCE_TIME *,
-    const WAVEFORMATEX *pFormat,
-    LPCGUID)
-{
-    copy_wave_format(&this->format_, pFormat);
-
-    // honor the game's requested buffer duration, falling back to 10 ms
-    constexpr REFERENCE_TIME DEFAULT_REFTIME = 100000; // 10 ms in 100-ns units
-    this->period_reftime = (hnsBufferDuration && *hnsBufferDuration > 0)
-            ? *hnsBufferDuration
-            : DEFAULT_REFTIME;
-
-    this->buffer_frames = std::max<uint32_t>(1, static_cast<uint32_t>(
-            static_cast<double>(this->format_.Format.nSamplesPerSec)
-                    * this->period_reftime / 10000000.0 + 0.5));
-
-    log_info("audio::null", "initializing null render device with {} channels, {} Hz, {}-bit",
-             this->format_.Format.nChannels,
-             this->format_.Format.nSamplesPerSec,
-             this->format_.Format.wBitsPerSample);
-
-    return S_OK;
-}
-
-HRESULT NullDiscardBackend::on_get_buffer_size(uint32_t *buffer_frames) {
-    *buffer_frames = this->buffer_frames;
-    return S_OK;
-}
-
-HRESULT NullDiscardBackend::on_get_stream_latency(REFERENCE_TIME *latency) {
-    *latency = this->period_reftime;
-    return S_OK;
-}
-
-HRESULT NullDiscardBackend::on_get_current_padding(std::optional<uint32_t> &padding_frames) {
-    // discarded immediately, so the buffer always reads as fully drained
-    padding_frames = 0;
-    return S_OK;
-}
-
-HRESULT NullDiscardBackend::on_is_format_supported(
-    AUDCLNT_SHAREMODE *,
-    const WAVEFORMATEX *,
-    WAVEFORMATEX **ppClosestMatch)
-{
-    if (ppClosestMatch) {
-        *ppClosestMatch = nullptr;
-    }
-    return S_OK;
-}
-
-HRESULT NullDiscardBackend::on_get_mix_format(WAVEFORMATEX **) {
-    return E_NOTIMPL;
-}
-
-HRESULT NullDiscardBackend::on_get_device_period(
-    REFERENCE_TIME *default_device_period,
-    REFERENCE_TIME *minimum_device_period)
-{
-    if (default_device_period) {
-        *default_device_period = this->period_reftime;
-    }
-    if (minimum_device_period) {
-        *minimum_device_period = this->period_reftime;
-    }
-    return S_OK;
-}
-
-HRESULT NullDiscardBackend::on_start() {
-    if (!this->running.exchange(true)) {
-        this->pacing_thread = std::thread(&NullDiscardBackend::pace_loop, this);
-    }
-    return S_OK;
-}
-
-HRESULT NullDiscardBackend::on_stop() {
-    return S_OK;
-}
-
-HRESULT NullDiscardBackend::on_set_event_handle(HANDLE *event_handle) {
-    // keep the game's event so pace_loop() can wake it; there is no real device behind it
-    this->relay_handle = *event_handle;
-    return S_OK;
-}
-
-HRESULT NullDiscardBackend::on_get_buffer(uint32_t num_frames_requested, BYTE **ppData) {
-    const size_t buffer_size =
-            static_cast<size_t>(this->format_.Format.nBlockAlign) * num_frames_requested;
-    if (this->scratch.size() < buffer_size) {
-        this->scratch.resize(buffer_size);
-    }
-    *ppData = this->scratch.data();
-    return S_OK;
-}
-
-HRESULT NullDiscardBackend::on_release_buffer(uint32_t, DWORD) {
-    // discard the audio entirely
-    return S_OK;
-}
-
-void NullDiscardBackend::pace_loop() {
-    using namespace std::chrono;
-
-    timeutils::PreciseSleepTimer timer;
-
-    // audio is discarded, so timing precision and drift do not matter; just wake the
-    // game once per buffer period to keep its render thread from blocking on the event.
-    const auto period = duration_cast<steady_clock::duration>(
-            duration<double>(this->period_reftime / 10000000.0));
-
-    while (this->running.load()) {
-        if (this->relay_handle) {
-            SetEvent(this->relay_handle);
-        }
-        timer.sleep(period);
-    }
-}
+#include "null_discard_backend.h"
+
+#include <algorithm>
+#include <chrono>
+#include <thread>
+
+#include "hooks/audio/util.h"
+#include "util/logging.h"
+
+NullDiscardBackend::~NullDiscardBackend() {
+    this->running = false;
+    if (this->pacing_thread.joinable()) {
+        this->pacing_thread.join();
+    }
+}
+
+const WAVEFORMATEXTENSIBLE &NullDiscardBackend::format() const noexcept {
+    return this->format_;
+}
+
+HRESULT NullDiscardBackend::on_initialize(
+    AUDCLNT_SHAREMODE *,
+    DWORD *,
+    REFERENCE_TIME *hnsBufferDuration,
+    REFERENCE_TIME *,
+    const WAVEFORMATEX *pFormat,
+    LPCGUID)
+{
+    copy_wave_format(&this->format_, pFormat);
+
+    // honor the game's requested buffer duration, falling back to 10 ms
+    constexpr REFERENCE_TIME DEFAULT_REFTIME = 100000; // 10 ms in 100-ns units
+    this->period_reftime = (hnsBufferDuration && *hnsBufferDuration > 0)
+            ? *hnsBufferDuration
+            : DEFAULT_REFTIME;
+
+    this->buffer_frames = std::max<uint32_t>(1, static_cast<uint32_t>(
+            static_cast<double>(this->format_.Format.nSamplesPerSec)
+                    * this->period_reftime / 10000000.0 + 0.5));
+
+    log_info("audio::null", "initializing null render device with {} channels, {} Hz, {}-bit",
+             this->format_.Format.nChannels,
+             this->format_.Format.nSamplesPerSec,
+             this->format_.Format.wBitsPerSample);
+
+    return S_OK;
+}
+
+HRESULT NullDiscardBackend::on_get_buffer_size(uint32_t *buffer_frames) {
+    *buffer_frames = this->buffer_frames;
+    return S_OK;
+}
+
+HRESULT NullDiscardBackend::on_get_stream_latency(REFERENCE_TIME *latency) {
+    *latency = this->period_reftime;
+    return S_OK;
+}
+
+HRESULT NullDiscardBackend::on_get_current_padding(std::optional<uint32_t> &padding_frames) {
+    // discarded immediately, so the buffer always reads as fully drained
+    padding_frames = 0;
+    return S_OK;
+}
+
+HRESULT NullDiscardBackend::on_is_format_supported(
+    AUDCLNT_SHAREMODE *,
+    const WAVEFORMATEX *,
+    WAVEFORMATEX **ppClosestMatch)
+{
+    if (ppClosestMatch) {
+        *ppClosestMatch = nullptr;
+    }
+    return S_OK;
+}
+
+HRESULT NullDiscardBackend::on_get_mix_format(WAVEFORMATEX **) {
+    return E_NOTIMPL;
+}
+
+HRESULT NullDiscardBackend::on_get_device_period(
+    REFERENCE_TIME *default_device_period,
+    REFERENCE_TIME *minimum_device_period)
+{
+    if (default_device_period) {
+        *default_device_period = this->period_reftime;
+    }
+    if (minimum_device_period) {
+        *minimum_device_period = this->period_reftime;
+    }
+    return S_OK;
+}
+
+HRESULT NullDiscardBackend::on_start() {
+    if (!this->running.exchange(true)) {
+        this->pacing_thread = std::thread(&NullDiscardBackend::pace_loop, this);
+    }
+    return S_OK;
+}
+
+HRESULT NullDiscardBackend::on_stop() {
+    return S_OK;
+}
+
+HRESULT NullDiscardBackend::on_set_event_handle(HANDLE *event_handle) {
+    // keep the game's event so pace_loop() can wake it; there is no real device behind it
+    this->relay_handle = *event_handle;
+    return S_OK;
+}
+
+HRESULT NullDiscardBackend::on_get_buffer(uint32_t num_frames_requested, BYTE **ppData) {
+    const size_t buffer_size =
+            static_cast<size_t>(this->format_.Format.nBlockAlign) * num_frames_requested;
+    if (this->scratch.size() < buffer_size) {
+        this->scratch.resize(buffer_size);
+    }
+    *ppData = this->scratch.data();
+    return S_OK;
+}
+
+HRESULT NullDiscardBackend::on_release_buffer(uint32_t, DWORD) {
+    // discard the audio entirely
+    return S_OK;
+}
+
+void NullDiscardBackend::pace_loop() {
+    using namespace std::chrono;
+
+    // audio is discarded, so timing precision and drift do not matter; just wake the
+    // game once per buffer period to keep its render thread from blocking on the event.
+    const auto period = duration_cast<steady_clock::duration>(
+            duration<double>(this->period_reftime / 10000000.0));
+
+    while (this->running.load()) {
+        if (this->relay_handle) {
+            SetEvent(this->relay_handle);
+        }
+        std::this_thread::sleep_for(period);
+    }
+}
@@ -1,54 +1,54 @@
-#pragma once
-
-#include <atomic>
-#include <optional>
-#include <thread>
-#include <vector>
-
-#include <audioclient.h>
-
-#include "hooks/audio/implementations/backend.h"
-
-// discards all audio while pacing the game's event handle once per buffer period, so the game
-// keeps running normally with nothing output to any real device. routed through the shared
-// DummyIAudioClient, the same plumbing the asio backend uses.
-struct NullDiscardBackend final : AudioBackend {
-    ~NullDiscardBackend() final;
-
-    const WAVEFORMATEXTENSIBLE &format() const noexcept override;
-
-    HRESULT on_initialize(
-        AUDCLNT_SHAREMODE *,
-        DWORD *,
-        REFERENCE_TIME *hnsBufferDuration,
-        REFERENCE_TIME *,
-        const WAVEFORMATEX *pFormat,
-        LPCGUID) override;
-    HRESULT on_get_buffer_size(uint32_t *buffer_frames) override;
-    HRESULT on_get_stream_latency(REFERENCE_TIME *latency) override;
-    HRESULT on_get_current_padding(std::optional<uint32_t> &padding_frames) override;
-    HRESULT on_is_format_supported(
-        AUDCLNT_SHAREMODE *,
-        const WAVEFORMATEX *,
-        WAVEFORMATEX **ppClosestMatch) override;
-    HRESULT on_get_mix_format(WAVEFORMATEX **) override;
-    HRESULT on_get_device_period(
-        REFERENCE_TIME *default_device_period,
-        REFERENCE_TIME *minimum_device_period) override;
-    HRESULT on_start() override;
-    HRESULT on_stop() override;
-    HRESULT on_set_event_handle(HANDLE *event_handle) override;
-    HRESULT on_get_buffer(uint32_t num_frames_requested, BYTE **ppData) override;
-    HRESULT on_release_buffer(uint32_t, DWORD) override;
-
-private:
-    void pace_loop();
-
-    WAVEFORMATEXTENSIBLE format_ {};
-    uint32_t buffer_frames = 0;
-    REFERENCE_TIME period_reftime = 0;
-    HANDLE relay_handle = nullptr;
-    std::vector<BYTE> scratch;
-    std::thread pacing_thread;
-    std::atomic<bool> running = false;
-};
+#pragma once
+
+#include <atomic>
+#include <optional>
+#include <thread>
+#include <vector>
+
+#include <audioclient.h>
+
+#include "hooks/audio/implementations/backend.h"
+
+// discards all audio while pacing the game's event handle once per buffer period, so the game
+// keeps running normally with nothing output to any real device. routed through the shared
+// DummyIAudioClient, the same plumbing the asio backend uses.
+struct NullDiscardBackend final : AudioBackend {
+    ~NullDiscardBackend() final;
+
+    const WAVEFORMATEXTENSIBLE &format() const noexcept override;
+
+    HRESULT on_initialize(
+        AUDCLNT_SHAREMODE *,
+        DWORD *,
+        REFERENCE_TIME *hnsBufferDuration,
+        REFERENCE_TIME *,
+        const WAVEFORMATEX *pFormat,
+        LPCGUID) override;
+    HRESULT on_get_buffer_size(uint32_t *buffer_frames) override;
+    HRESULT on_get_stream_latency(REFERENCE_TIME *latency) override;
+    HRESULT on_get_current_padding(std::optional<uint32_t> &padding_frames) override;
+    HRESULT on_is_format_supported(
+        AUDCLNT_SHAREMODE *,
+        const WAVEFORMATEX *,
+        WAVEFORMATEX **ppClosestMatch) override;
+    HRESULT on_get_mix_format(WAVEFORMATEX **) override;
+    HRESULT on_get_device_period(
+        REFERENCE_TIME *default_device_period,
+        REFERENCE_TIME *minimum_device_period) override;
+    HRESULT on_start() override;
+    HRESULT on_stop() override;
+    HRESULT on_set_event_handle(HANDLE *event_handle) override;
+    HRESULT on_get_buffer(uint32_t num_frames_requested, BYTE **ppData) override;
+    HRESULT on_release_buffer(uint32_t, DWORD) override;
+
+private:
+    void pace_loop();
+
+    WAVEFORMATEXTENSIBLE format_ {};
+    uint32_t buffer_frames = 0;
+    REFERENCE_TIME period_reftime = 0;
+    HANDLE relay_handle = nullptr;
+    std::vector<BYTE> scratch;
+    std::thread pacing_thread;
+    std::atomic<bool> running = false;
+};
@@ -1,264 +1,264 @@
-#include "downmix.h"
-
-#include <algorithm>
-#include <cmath>
-#include <cstdint>
-#include <cstring>
-
-#include <audioclient.h>
-#include <ks.h>
-#include <ksmedia.h>
-
-#include "util/logging.h"
-
-#include "util.h"
-
-namespace hooks::audio {
-
-    namespace {
-
-        constexpr float ATT_3DB = 0.70710678f;
-
-        // speakers routed to the left/right output; anything else (center) feeds both sides
-        constexpr DWORD LEFT_SPEAKERS = SPEAKER_FRONT_LEFT | SPEAKER_BACK_LEFT | SPEAKER_SIDE_LEFT
-            | SPEAKER_FRONT_LEFT_OF_CENTER | SPEAKER_TOP_FRONT_LEFT | SPEAKER_TOP_BACK_LEFT;
-        constexpr DWORD RIGHT_SPEAKERS = SPEAKER_FRONT_RIGHT | SPEAKER_BACK_RIGHT | SPEAKER_SIDE_RIGHT
-            | SPEAKER_FRONT_RIGHT_OF_CENTER | SPEAKER_TOP_FRONT_RIGHT | SPEAKER_TOP_BACK_RIGHT;
-
-        // the speaker mask is only present on WAVE_FORMAT_EXTENSIBLE formats
-        DWORD read_channel_mask(const WAVEFORMATEX *fmt) {
-            if (fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE
-                    && fmt->cbSize >= sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX)) {
-                return reinterpret_cast<const WAVEFORMATEXTENSIBLE *>(fmt)->dwChannelMask;
-            }
-            return 0;
-        }
-
-        // call visit(channel_index, speaker_bit) for each present speaker, in channel order
-        template <typename F>
-        void for_each_speaker(DWORD mask, int channels, F &&visit) {
-            int channel = 0;
-            for (int bit = 0; bit < 18 && channel < channels; bit++) {
-                const DWORD speaker = 1u << bit;
-                if (mask & speaker) {
-                    visit(channel++, speaker);
-                }
-            }
-        }
-    }
-
-    void Downmix::setup(const WAVEFORMATEX *game_format, WAVEFORMATEXTENSIBLE *stereo_out,
-            DownmixAlgorithm algorithm) {
-        this->enabled = true;
-        this->algorithm = algorithm;
-        this->bytes_per_sample = game_format->wBitsPerSample / 8;
-        this->game_frame_size = game_format->nChannels * this->bytes_per_sample;
-
-        this->is_float = is_ieee_float(game_format);
-
-        // supported: 16/24/32-bit integer PCM and 32-bit float; anything else mixes to silence
-        const bool supported = this->is_float
-            ? this->bytes_per_sample == 4
-            : (this->bytes_per_sample >= 2 && this->bytes_per_sample <= 4);
-        if (!supported) {
-            log_fatal(
-                "audio::downmix",
-                "unsupported sample format ({}-bit {}), downmix will output silence",
-                game_format->wBitsPerSample, this->is_float ? "float" : "int");
-        }
-
-        this->left_mix.clear();
-        this->right_mix.clear();
-        this->build_layout_mix(game_format);
-
-        make_stereo_format(game_format, stereo_out);
-    }
-
-    void Downmix::make_stereo_format(const WAVEFORMATEX *game_format,
-            WAVEFORMATEXTENSIBLE *stereo_out) {
-        const int bytes_per_sample = game_format->wBitsPerSample / 8;
-
-        memcpy(stereo_out, game_format, sizeof(WAVEFORMATEXTENSIBLE));
-        stereo_out->Format.nChannels = 2;
-        stereo_out->Format.nBlockAlign = 2 * bytes_per_sample;
-        stereo_out->Format.nAvgBytesPerSec =
-            game_format->nSamplesPerSec * stereo_out->Format.nBlockAlign;
-        stereo_out->dwChannelMask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT;
-    }
-
-    HRESULT Downmix::initialize(IAudioClient *real, AUDCLNT_SHAREMODE share_mode, DWORD stream_flags,
-            REFERENCE_TIME buffer_duration, REFERENCE_TIME periodicity,
-            const WAVEFORMATEX *device_format, LPCGUID session_guid) {
-
-        // the smaller stereo buffer can end up unaligned for the device when the game sized the
-        // duration for its larger multi-channel format; the helper recovers from that.
-        return initialize_with_alignment_retry(real, "audio::downmix", share_mode, stream_flags,
-                buffer_duration, periodicity, device_format, session_guid);
-    }
-
-    void Downmix::add_channel(int channel, DWORD speaker, float gain) {
-        if (speaker & LEFT_SPEAKERS) {
-            this->left_mix.push_back({ channel, gain });
-        } else if (speaker & RIGHT_SPEAKERS) {
-            this->right_mix.push_back({ channel, gain });
-        } else { // center: feed both sides
-            this->left_mix.push_back({ channel, gain });
-            this->right_mix.push_back({ channel, gain });
-        }
-    }
-
-    // AC-4 stereo downmix (ETSI TS 103 190-1): front pair at unity, everything else -3 dB, LFE dropped
-    void Downmix::build_ac4_mix(DWORD mask, int channels) {
-        for_each_speaker(mask, channels, [&](int ch, DWORD speaker) {
-            if (speaker == SPEAKER_LOW_FREQUENCY) {
-                return;
-            }
-            const bool front_pair = speaker & (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT);
-            this->add_channel(ch, speaker, front_pair ? 1.0f : ATT_3DB);
-        });
-    }
-
-    // keep only the channels in `keep` (front/rear/side), each at unity gain
-    void Downmix::build_extract_mix(DWORD mask, int channels, DWORD keep) {
-        for_each_speaker(mask, channels, [&](int ch, DWORD speaker) {
-            if (speaker & keep) {
-                this->add_channel(ch, speaker, 1.0f);
-            }
-        });
-    }
-
-    // keep every channel (LFE dropped), then average each side so its gains sum to unity
-    void Downmix::build_normalize_mix(DWORD mask, int channels) {
-        for_each_speaker(mask, channels, [&](int ch, DWORD speaker) {
-            if (speaker != SPEAKER_LOW_FREQUENCY) {
-                this->add_channel(ch, speaker, 1.0f);
-            }
-        });
-
-        for (auto *mix : { &this->left_mix, &this->right_mix }) {
-            if (!mix->empty()) {
-                const float gain = 1.0f / mix->size();
-                for (auto &c : *mix) {
-                    c.gain = gain;
-                }
-            }
-        }
-    }
-
-    // fallback when no speaker mask is present: fold interleaved L/R pairs (even->left, odd->right)
-    void Downmix::build_pairs_mix(int channels, float gain) {
-        for (int ch = 0; ch < channels; ch++) {
-            (((ch & 1) == 0) ? this->left_mix : this->right_mix).push_back({ ch, gain });
-        }
-    }
-
-    void Downmix::build_layout_mix(const WAVEFORMATEX *game_format) {
-        const int channels = game_format->nChannels;
-        const DWORD mask = read_channel_mask(game_format);
-
-        // without a mask the layout is unknown: extract/normalize have nothing to act on, so all
-        // algorithms fall back to folding L/R pairs (AC-4 still attenuates by -3 dB)
-        if (mask == 0) {
-            this->build_pairs_mix(channels,
-                this->algorithm == DownmixAlgorithm::AC4 ? ATT_3DB : 1.0f);
-            return;
-        }
-
-        switch (this->algorithm) {
-            case DownmixAlgorithm::FrontOnly:
-                this->build_extract_mix(mask, channels,
-                    SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT);
-                break;
-            case DownmixAlgorithm::RearOnly:
-                this->build_extract_mix(mask, channels,
-                    SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT | SPEAKER_BACK_CENTER);
-                break;
-            case DownmixAlgorithm::SideOnly:
-                this->build_extract_mix(mask, channels,
-                    SPEAKER_SIDE_LEFT | SPEAKER_SIDE_RIGHT);
-                break;
-            case DownmixAlgorithm::Normalize:
-                this->build_normalize_mix(mask, channels);
-                break;
-            case DownmixAlgorithm::AC4:
-                this->build_ac4_mix(mask, channels);
-                break;
-        }
-    }
-
-    void Downmix::process(BYTE *dst, const BYTE *src, UINT32 frames) const {
-        const int bps = this->bytes_per_sample;
-        const int src_stride = this->game_frame_size;
-        const int dst_stride = 2 * bps;
-
-        if (dst == nullptr || src == nullptr || bps <= 0) {
-            return;
-        }
-
-        // sum each speaker's source channels into the matching stereo output
-        for (UINT32 i = 0; i < frames; i++) {
-            const BYTE *in = src + (size_t) i * src_stride;
-            BYTE *out = dst + (size_t) i * dst_stride;
-
-            float left = 0.0f;
-            float right = 0.0f;
-            for (const auto &c : this->left_mix) {
-                left += read_sample(in + c.channel * bps, bps, this->is_float) * c.gain;
-            }
-            for (const auto &c : this->right_mix) {
-                right += read_sample(in + c.channel * bps, bps, this->is_float) * c.gain;
-            }
-            write_sample(out, bps, this->is_float, left);
-            write_sample(out + bps, bps, this->is_float, right);
-        }
-    }
-
-    HRESULT Downmix::get_buffer(IAudioRenderClient *real, UINT32 frames, BYTE **ppData) {
-        const size_t needed = (size_t) frames * this->game_frame_size;
-        if (this->scratch.size() < needed) {
-            this->scratch.resize(needed);
-        }
-
-        HRESULT ret = real->GetBuffer(frames, &this->device_buffer);
-        if (FAILED(ret)) {
-            this->device_buffer = nullptr;
-            return ret;
-        }
-
-        *ppData = this->scratch.data();
-
-        return S_OK;
-    }
-
-    HRESULT Downmix::get_scratch(UINT32 frames, BYTE **ppData) {
-        const size_t needed = (size_t) frames * this->game_frame_size;
-        if (this->scratch.size() < needed) {
-            this->scratch.resize(needed);
-        }
-
-        *ppData = this->scratch.data();
-
-        return S_OK;
-    }
-
-    void Downmix::downmix_into(BYTE *dst, UINT32 frames) const {
-        this->process(dst, this->scratch.data(), frames);
-    }
-
-    void Downmix::write_device_buffer(UINT32 frames, DWORD flags) {
-        const int bps = this->bytes_per_sample;
-        const int dst_stride = 2 * bps;
-
-        if (this->device_buffer == nullptr || frames == 0 || bps <= 0) {
-            return;
-        }
-
-        // mute the first few buffers to avoid a pop on stream start
-        if (this->buffers_to_mute > 0) {
-            memset(this->device_buffer, 0, (size_t) frames * dst_stride);
-            this->buffers_to_mute--;
-        } else if ((flags & AUDCLNT_BUFFERFLAGS_SILENT) == 0) {
-            this->process(this->device_buffer, this->scratch.data(), frames);
-        }
-    }
-}
+#include "downmix.h"
+
+#include <algorithm>
+#include <cmath>
+#include <cstdint>
+#include <cstring>
+
+#include <audioclient.h>
+#include <ks.h>
+#include <ksmedia.h>
+
+#include "util/logging.h"
+
+#include "util.h"
+
+namespace hooks::audio {
+
+    namespace {
+
+        constexpr float ATT_3DB = 0.70710678f;
+
+        // speakers routed to the left/right output; anything else (center) feeds both sides
+        constexpr DWORD LEFT_SPEAKERS = SPEAKER_FRONT_LEFT | SPEAKER_BACK_LEFT | SPEAKER_SIDE_LEFT
+            | SPEAKER_FRONT_LEFT_OF_CENTER | SPEAKER_TOP_FRONT_LEFT | SPEAKER_TOP_BACK_LEFT;
+        constexpr DWORD RIGHT_SPEAKERS = SPEAKER_FRONT_RIGHT | SPEAKER_BACK_RIGHT | SPEAKER_SIDE_RIGHT
+            | SPEAKER_FRONT_RIGHT_OF_CENTER | SPEAKER_TOP_FRONT_RIGHT | SPEAKER_TOP_BACK_RIGHT;
+
+        // the speaker mask is only present on WAVE_FORMAT_EXTENSIBLE formats
+        DWORD read_channel_mask(const WAVEFORMATEX *fmt) {
+            if (fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE
+                    && fmt->cbSize >= sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX)) {
+                return reinterpret_cast<const WAVEFORMATEXTENSIBLE *>(fmt)->dwChannelMask;
+            }
+            return 0;
+        }
+
+        // call visit(channel_index, speaker_bit) for each present speaker, in channel order
+        template <typename F>
+        void for_each_speaker(DWORD mask, int channels, F &&visit) {
+            int channel = 0;
+            for (int bit = 0; bit < 18 && channel < channels; bit++) {
+                const DWORD speaker = 1u << bit;
+                if (mask & speaker) {
+                    visit(channel++, speaker);
+                }
+            }
+        }
+    }
+
+    void Downmix::setup(const WAVEFORMATEX *game_format, WAVEFORMATEXTENSIBLE *stereo_out,
+            DownmixAlgorithm algorithm) {
+        this->enabled = true;
+        this->algorithm = algorithm;
+        this->bytes_per_sample = game_format->wBitsPerSample / 8;
+        this->game_frame_size = game_format->nChannels * this->bytes_per_sample;
+
+        this->is_float = is_ieee_float(game_format);
+
+        // supported: 16/24/32-bit integer PCM and 32-bit float; anything else mixes to silence
+        const bool supported = this->is_float
+            ? this->bytes_per_sample == 4
+            : (this->bytes_per_sample >= 2 && this->bytes_per_sample <= 4);
+        if (!supported) {
+            log_fatal(
+                "audio::downmix",
+                "unsupported sample format ({}-bit {}), downmix will output silence",
+                game_format->wBitsPerSample, this->is_float ? "float" : "int");
+        }
+
+        this->left_mix.clear();
+        this->right_mix.clear();
+        this->build_layout_mix(game_format);
+
+        make_stereo_format(game_format, stereo_out);
+    }
+
+    void Downmix::make_stereo_format(const WAVEFORMATEX *game_format,
+            WAVEFORMATEXTENSIBLE *stereo_out) {
+        const int bytes_per_sample = game_format->wBitsPerSample / 8;
+
+        memcpy(stereo_out, game_format, sizeof(WAVEFORMATEXTENSIBLE));
+        stereo_out->Format.nChannels = 2;
+        stereo_out->Format.nBlockAlign = 2 * bytes_per_sample;
+        stereo_out->Format.nAvgBytesPerSec =
+            game_format->nSamplesPerSec * stereo_out->Format.nBlockAlign;
+        stereo_out->dwChannelMask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT;
+    }
+
+    HRESULT Downmix::initialize(IAudioClient *real, AUDCLNT_SHAREMODE share_mode, DWORD stream_flags,
+            REFERENCE_TIME buffer_duration, REFERENCE_TIME periodicity,
+            const WAVEFORMATEX *device_format, LPCGUID session_guid) {
+
+        // the smaller stereo buffer can end up unaligned for the device when the game sized the
+        // duration for its larger multi-channel format; the helper recovers from that.
+        return initialize_with_alignment_retry(real, "audio::downmix", share_mode, stream_flags,
+                buffer_duration, periodicity, device_format, session_guid);
+    }
+
+    void Downmix::add_channel(int channel, DWORD speaker, float gain) {
+        if (speaker & LEFT_SPEAKERS) {
+            this->left_mix.push_back({ channel, gain });
+        } else if (speaker & RIGHT_SPEAKERS) {
+            this->right_mix.push_back({ channel, gain });
+        } else { // center: feed both sides
+            this->left_mix.push_back({ channel, gain });
+            this->right_mix.push_back({ channel, gain });
+        }
+    }
+
+    // AC-4 stereo downmix (ETSI TS 103 190-1): front pair at unity, everything else -3 dB, LFE dropped
+    void Downmix::build_ac4_mix(DWORD mask, int channels) {
+        for_each_speaker(mask, channels, [&](int ch, DWORD speaker) {
+            if (speaker == SPEAKER_LOW_FREQUENCY) {
+                return;
+            }
+            const bool front_pair = speaker & (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT);
+            this->add_channel(ch, speaker, front_pair ? 1.0f : ATT_3DB);
+        });
+    }
+
+    // keep only the channels in `keep` (front/rear/side), each at unity gain
+    void Downmix::build_extract_mix(DWORD mask, int channels, DWORD keep) {
+        for_each_speaker(mask, channels, [&](int ch, DWORD speaker) {
+            if (speaker & keep) {
+                this->add_channel(ch, speaker, 1.0f);
+            }
+        });
+    }
+
+    // keep every channel (LFE dropped), then average each side so its gains sum to unity
+    void Downmix::build_normalize_mix(DWORD mask, int channels) {
+        for_each_speaker(mask, channels, [&](int ch, DWORD speaker) {
+            if (speaker != SPEAKER_LOW_FREQUENCY) {
+                this->add_channel(ch, speaker, 1.0f);
+            }
+        });
+
+        for (auto *mix : { &this->left_mix, &this->right_mix }) {
+            if (!mix->empty()) {
+                const float gain = 1.0f / mix->size();
+                for (auto &c : *mix) {
+                    c.gain = gain;
+                }
+            }
+        }
+    }
+
+    // fallback when no speaker mask is present: fold interleaved L/R pairs (even->left, odd->right)
+    void Downmix::build_pairs_mix(int channels, float gain) {
+        for (int ch = 0; ch < channels; ch++) {
+            (((ch & 1) == 0) ? this->left_mix : this->right_mix).push_back({ ch, gain });
+        }
+    }
+
+    void Downmix::build_layout_mix(const WAVEFORMATEX *game_format) {
+        const int channels = game_format->nChannels;
+        const DWORD mask = read_channel_mask(game_format);
+
+        // without a mask the layout is unknown: extract/normalize have nothing to act on, so all
+        // algorithms fall back to folding L/R pairs (AC-4 still attenuates by -3 dB)
+        if (mask == 0) {
+            this->build_pairs_mix(channels,
+                this->algorithm == DownmixAlgorithm::AC4 ? ATT_3DB : 1.0f);
+            return;
+        }
+
+        switch (this->algorithm) {
+            case DownmixAlgorithm::FrontOnly:
+                this->build_extract_mix(mask, channels,
+                    SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT);
+                break;
+            case DownmixAlgorithm::RearOnly:
+                this->build_extract_mix(mask, channels,
+                    SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT | SPEAKER_BACK_CENTER);
+                break;
+            case DownmixAlgorithm::SideOnly:
+                this->build_extract_mix(mask, channels,
+                    SPEAKER_SIDE_LEFT | SPEAKER_SIDE_RIGHT);
+                break;
+            case DownmixAlgorithm::Normalize:
+                this->build_normalize_mix(mask, channels);
+                break;
+            case DownmixAlgorithm::AC4:
+                this->build_ac4_mix(mask, channels);
+                break;
+        }
+    }
+
+    void Downmix::process(BYTE *dst, const BYTE *src, UINT32 frames) const {
+        const int bps = this->bytes_per_sample;
+        const int src_stride = this->game_frame_size;
+        const int dst_stride = 2 * bps;
+
+        if (dst == nullptr || src == nullptr || bps <= 0) {
+            return;
+        }
+
+        // sum each speaker's source channels into the matching stereo output
+        for (UINT32 i = 0; i < frames; i++) {
+            const BYTE *in = src + (size_t) i * src_stride;
+            BYTE *out = dst + (size_t) i * dst_stride;
+
+            float left = 0.0f;
+            float right = 0.0f;
+            for (const auto &c : this->left_mix) {
+                left += read_sample(in + c.channel * bps, bps, this->is_float) * c.gain;
+            }
+            for (const auto &c : this->right_mix) {
+                right += read_sample(in + c.channel * bps, bps, this->is_float) * c.gain;
+            }
+            write_sample(out, bps, this->is_float, left);
+            write_sample(out + bps, bps, this->is_float, right);
+        }
+    }
+
+    HRESULT Downmix::get_buffer(IAudioRenderClient *real, UINT32 frames, BYTE **ppData) {
+        const size_t needed = (size_t) frames * this->game_frame_size;
+        if (this->scratch.size() < needed) {
+            this->scratch.resize(needed);
+        }
+
+        HRESULT ret = real->GetBuffer(frames, &this->device_buffer);
+        if (FAILED(ret)) {
+            this->device_buffer = nullptr;
+            return ret;
+        }
+
+        *ppData = this->scratch.data();
+
+        return S_OK;
+    }
+
+    HRESULT Downmix::get_scratch(UINT32 frames, BYTE **ppData) {
+        const size_t needed = (size_t) frames * this->game_frame_size;
+        if (this->scratch.size() < needed) {
+            this->scratch.resize(needed);
+        }
+
+        *ppData = this->scratch.data();
+
+        return S_OK;
+    }
+
+    void Downmix::downmix_into(BYTE *dst, UINT32 frames) const {
+        this->process(dst, this->scratch.data(), frames);
+    }
+
+    void Downmix::write_device_buffer(UINT32 frames, DWORD flags) {
+        const int bps = this->bytes_per_sample;
+        const int dst_stride = 2 * bps;
+
+        if (this->device_buffer == nullptr || frames == 0 || bps <= 0) {
+            return;
+        }
+
+        // mute the first few buffers to avoid a pop on stream start
+        if (this->buffers_to_mute > 0) {
+            memset(this->device_buffer, 0, (size_t) frames * dst_stride);
+            this->buffers_to_mute--;
+        } else if ((flags & AUDCLNT_BUFFERFLAGS_SILENT) == 0) {
+            this->process(this->device_buffer, this->scratch.data(), frames);
+        }
+    }
+}
@@ -1,150 +1,150 @@
-#pragma once
-
-#include <optional>
-#include <vector>
-
-#include <windows.h>
-#include <mmreg.h>
-#include <audioclient.h>
-
-#include "hooks/audio/audio.h"
-
-struct IAudioClient;
-struct IAudioRenderClient;
-
-namespace hooks::audio {
-
-    // Generic WASAPI surround-to-stereo downmix. The real device is opened in stereo while the
-    // game keeps writing its native multi-channel audio into a scratch buffer; on release that
-    // buffer is mixed down into the two front channels.
-    //
-    // The mix is derived from the source format's speaker mask according to the selected
-    // DownmixAlgorithm:
-    //   FrontOnly / RearOnly / SideOnly - keep only that group of channels, routed to their side
-    //   AC4       - AC-4 stereo downmix coefficients (ETSI TS 103 190-1 §6.2.17): front left/right
-    //               pass at 0 dB, center and surrounds fold in at -3 dB, LFE dropped
-    //   Normalize - every channel folded in (center to both sides) with each output side averaged
-    //               so its channels are equally loud, LFE dropped
-    struct Downmix {
-
-        // a source channel routed into one output speaker at the given gain
-        struct Contribution {
-            int channel;
-            float gain;
-        };
-
-        // map an option value (front/rear/side/ac4/normalize) to its algorithm.
-        static std::optional<DownmixAlgorithm> name_to_algorithm(const char *value) {
-            if (_stricmp(value, "front") == 0) {
-                return DownmixAlgorithm::FrontOnly;
-            } else if (_stricmp(value, "rear") == 0) {
-                return DownmixAlgorithm::RearOnly;
-            } else if (_stricmp(value, "side") == 0) {
-                return DownmixAlgorithm::SideOnly;
-            } else if (_stricmp(value, "ac4") == 0) {
-                return DownmixAlgorithm::AC4;
-            } else if (_stricmp(value, "normalize") == 0) {
-                return DownmixAlgorithm::Normalize;
-            }
-
-            return std::nullopt;
-        }
-
-        // human-readable name of an algorithm, for logging.
-        static const char *algorithm_name(DownmixAlgorithm algorithm) {
-            switch (algorithm) {
-                case DownmixAlgorithm::FrontOnly: return "front";
-                case DownmixAlgorithm::RearOnly: return "rear";
-                case DownmixAlgorithm::SideOnly: return "side";
-                case DownmixAlgorithm::AC4: return "ac4";
-                case DownmixAlgorithm::Normalize: return "normalize";
-                default: return "unknown";
-            }
-        }
-
-        // whether the downmix is active for the current stream
-        bool enabled = false;
-
-        // algorithm used to fold the multi-channel audio into stereo
-        DownmixAlgorithm algorithm = DownmixAlgorithm::AC4;
-
-        // size in bytes of one frame of the game's multi-channel format
-        int game_frame_size = 0;
-
-        // size in bytes of a single sample (per channel)
-        int bytes_per_sample = 0;
-
-        // whether samples are IEEE floating point rather than integer PCM
-        bool is_float = false;
-
-        // enable the downmix for the given game format and fill stereo_out with the equivalent
-        // stereo format to open the real device with.
-        void setup(const WAVEFORMATEX *game_format, WAVEFORMATEXTENSIBLE *stereo_out,
-                   DownmixAlgorithm algorithm);
-
-        // build the stereo format equivalent to game_format (same sample rate and bit depth).
-        static void make_stereo_format(const WAVEFORMATEX *game_format,
-                                       WAVEFORMATEXTENSIBLE *stereo_out);
-
-        // initialize the real device with the stereo format. downmixing reduces the channel count,
-        // shrinking the buffer's byte size, so the duration the game sized for its multi-channel
-        // format can leave the smaller stereo buffer unaligned. on AUDCLNT_E_BUFFER_SIZE_NOT_ALIGNED
-        // this performs the standard WASAPI realignment and retries.
-        HRESULT initialize(IAudioClient *real, AUDCLNT_SHAREMODE share_mode, DWORD stream_flags,
-                           REFERENCE_TIME buffer_duration, REFERENCE_TIME periodicity,
-                           const WAVEFORMATEX *device_format, LPCGUID session_guid);
-
-        // mix `frames` frames of multi-channel `src` down into stereo `dst`.
-        void process(BYTE *dst, const BYTE *src, UINT32 frames) const;
-
-        // grab the real stereo device buffer and hand the game the scratch buffer to write into.
-        HRESULT get_buffer(IAudioRenderClient *real, UINT32 frames, BYTE **ppData);
-
-        // size the scratch and hand it to the game without acquiring a device buffer. used when a
-        // later stage (the resampler) owns the device interaction.
-        HRESULT get_scratch(UINT32 frames, BYTE **ppData);
-
-        // downmix the scratch the game wrote into the caller's stereo buffer, without touching the
-        // device. used to feed the resampler when the two stages are chained.
-        void downmix_into(BYTE *dst, UINT32 frames) const;
-
-        // mix the scratch buffer into the stereo device buffer held since get_buffer. the caller
-        // owns releasing the device buffer afterwards (see current_buffer / buffer_released).
-        void write_device_buffer(UINT32 frames, DWORD flags);
-
-        // the real device buffer currently held, or null.
-        BYTE *current_buffer() const { return this->device_buffer; }
-
-        // forget the held device buffer once the caller has released it.
-        void buffer_released() { this->device_buffer = nullptr; }
-
-    private:
-
-        // build the mix from the source speaker layout for the selected algorithm
-        void build_layout_mix(const WAVEFORMATEX *game_format);
-
-        // per-algorithm builders, each filling left_mix / right_mix from the speaker mask
-        void build_ac4_mix(DWORD mask, int channels);
-        void build_extract_mix(DWORD mask, int channels, DWORD keep);
-        void build_normalize_mix(DWORD mask, int channels);
-
-        // fallback for streams without a speaker mask: fold interleaved L/R pairs at `gain`
-        void build_pairs_mix(int channels, float gain);
-
-        // append one source channel to the output side(s) matching its speaker, at `gain`
-        void add_channel(int channel, DWORD speaker, float gain);
-
-        // source channels summed into each output speaker
-        std::vector<Contribution> left_mix;
-        std::vector<Contribution> right_mix;
-
-        // buffer the game writes its multi-channel audio into between get/release
-        std::vector<BYTE> scratch;
-
-        // the real stereo device buffer currently held, or null
-        BYTE *device_buffer = nullptr;
-
-        // leading buffers to silence to avoid a pop on stream start
-        int buffers_to_mute = 16;
-    };
-}
+#pragma once
+
+#include <optional>
+#include <vector>
+
+#include <windows.h>
+#include <mmreg.h>
+#include <audioclient.h>
+
+#include "hooks/audio/audio.h"
+
+struct IAudioClient;
+struct IAudioRenderClient;
+
+namespace hooks::audio {
+
+    // Generic WASAPI surround-to-stereo downmix. The real device is opened in stereo while the
+    // game keeps writing its native multi-channel audio into a scratch buffer; on release that
+    // buffer is mixed down into the two front channels.
+    //
+    // The mix is derived from the source format's speaker mask according to the selected
+    // DownmixAlgorithm:
+    //   FrontOnly / RearOnly / SideOnly - keep only that group of channels, routed to their side
+    //   AC4       - AC-4 stereo downmix coefficients (ETSI TS 103 190-1 §6.2.17): front left/right
+    //               pass at 0 dB, center and surrounds fold in at -3 dB, LFE dropped
+    //   Normalize - every channel folded in (center to both sides) with each output side averaged
+    //               so its channels are equally loud, LFE dropped
+    struct Downmix {
+
+        // a source channel routed into one output speaker at the given gain
+        struct Contribution {
+            int channel;
+            float gain;
+        };
+
+        // map an option value (front/rear/side/ac4/normalize) to its algorithm.
+        static std::optional<DownmixAlgorithm> name_to_algorithm(const char *value) {
+            if (_stricmp(value, "front") == 0) {
+                return DownmixAlgorithm::FrontOnly;
+            } else if (_stricmp(value, "rear") == 0) {
+                return DownmixAlgorithm::RearOnly;
+            } else if (_stricmp(value, "side") == 0) {
+                return DownmixAlgorithm::SideOnly;
+            } else if (_stricmp(value, "ac4") == 0) {
+                return DownmixAlgorithm::AC4;
+            } else if (_stricmp(value, "normalize") == 0) {
+                return DownmixAlgorithm::Normalize;
+            }
+
+            return std::nullopt;
+        }
+
+        // human-readable name of an algorithm, for logging.
+        static const char *algorithm_name(DownmixAlgorithm algorithm) {
+            switch (algorithm) {
+                case DownmixAlgorithm::FrontOnly: return "front";
+                case DownmixAlgorithm::RearOnly: return "rear";
+                case DownmixAlgorithm::SideOnly: return "side";
+                case DownmixAlgorithm::AC4: return "ac4";
+                case DownmixAlgorithm::Normalize: return "normalize";
+                default: return "unknown";
+            }
+        }
+
+        // whether the downmix is active for the current stream
+        bool enabled = false;
+
+        // algorithm used to fold the multi-channel audio into stereo
+        DownmixAlgorithm algorithm = DownmixAlgorithm::AC4;
+
+        // size in bytes of one frame of the game's multi-channel format
+        int game_frame_size = 0;
+
+        // size in bytes of a single sample (per channel)
+        int bytes_per_sample = 0;
+
+        // whether samples are IEEE floating point rather than integer PCM
+        bool is_float = false;
+
+        // enable the downmix for the given game format and fill stereo_out with the equivalent
+        // stereo format to open the real device with.
+        void setup(const WAVEFORMATEX *game_format, WAVEFORMATEXTENSIBLE *stereo_out,
+                   DownmixAlgorithm algorithm);
+
+        // build the stereo format equivalent to game_format (same sample rate and bit depth).
+        static void make_stereo_format(const WAVEFORMATEX *game_format,
+                                       WAVEFORMATEXTENSIBLE *stereo_out);
+
+        // initialize the real device with the stereo format. downmixing reduces the channel count,
+        // shrinking the buffer's byte size, so the duration the game sized for its multi-channel
+        // format can leave the smaller stereo buffer unaligned. on AUDCLNT_E_BUFFER_SIZE_NOT_ALIGNED
+        // this performs the standard WASAPI realignment and retries.
+        HRESULT initialize(IAudioClient *real, AUDCLNT_SHAREMODE share_mode, DWORD stream_flags,
+                           REFERENCE_TIME buffer_duration, REFERENCE_TIME periodicity,
+                           const WAVEFORMATEX *device_format, LPCGUID session_guid);
+
+        // mix `frames` frames of multi-channel `src` down into stereo `dst`.
+        void process(BYTE *dst, const BYTE *src, UINT32 frames) const;
+
+        // grab the real stereo device buffer and hand the game the scratch buffer to write into.
+        HRESULT get_buffer(IAudioRenderClient *real, UINT32 frames, BYTE **ppData);
+
+        // size the scratch and hand it to the game without acquiring a device buffer. used when a
+        // later stage (the resampler) owns the device interaction.
+        HRESULT get_scratch(UINT32 frames, BYTE **ppData);
+
+        // downmix the scratch the game wrote into the caller's stereo buffer, without touching the
+        // device. used to feed the resampler when the two stages are chained.
+        void downmix_into(BYTE *dst, UINT32 frames) const;
+
+        // mix the scratch buffer into the stereo device buffer held since get_buffer. the caller
+        // owns releasing the device buffer afterwards (see current_buffer / buffer_released).
+        void write_device_buffer(UINT32 frames, DWORD flags);
+
+        // the real device buffer currently held, or null.
+        BYTE *current_buffer() const { return this->device_buffer; }
+
+        // forget the held device buffer once the caller has released it.
+        void buffer_released() { this->device_buffer = nullptr; }
+
+    private:
+
+        // build the mix from the source speaker layout for the selected algorithm
+        void build_layout_mix(const WAVEFORMATEX *game_format);
+
+        // per-algorithm builders, each filling left_mix / right_mix from the speaker mask
+        void build_ac4_mix(DWORD mask, int channels);
+        void build_extract_mix(DWORD mask, int channels, DWORD keep);
+        void build_normalize_mix(DWORD mask, int channels);
+
+        // fallback for streams without a speaker mask: fold interleaved L/R pairs at `gain`
+        void build_pairs_mix(int channels, float gain);
+
+        // append one source channel to the output side(s) matching its speaker, at `gain`
+        void add_channel(int channel, DWORD speaker, float gain);
+
+        // source channels summed into each output speaker
+        std::vector<Contribution> left_mix;
+        std::vector<Contribution> right_mix;
+
+        // buffer the game writes its multi-channel audio into between get/release
+        std::vector<BYTE> scratch;
+
+        // the real stereo device buffer currently held, or null
+        BYTE *device_buffer = nullptr;
+
+        // leading buffers to silence to avoid a pop on stream start
+        int buffers_to_mute = 16;
+    };
+}
@@ -1,437 +1,437 @@
-#include "resample.h"
-
-#include <algorithm>
-#include <cmath>
-#include <cstdint>
-#include <cstring>
-#include <mutex>
-
-#include <audioclient.h>
-
-#include "util/logging.h"
-
-#include "util.h"
-
-namespace hooks::audio {
-
-    namespace {
-
-        constexpr double PI = 3.14159265358979323846;
-
-        // normalized sinc: sin(pi*x) / (pi*x), with the removable singularity at 0 filled in
-        inline double sinc(double x) {
-            if (x == 0.0) {
-                return 1.0;
-            }
-            const double px = PI * x;
-            return std::sin(px) / px;
-        }
-
-        // Blackman window across the kernel radius; zero at +/- radius
-        inline double blackman(double x, double radius) {
-            const double n = (x + radius) / (2.0 * radius);
-            if (n <= 0.0 || n >= 1.0) {
-                return 0.0;
-            }
-            return 0.42 - 0.5 * std::cos(2.0 * PI * n) + 0.08 * std::cos(4.0 * PI * n);
-        }
-    }
-
-    std::optional<uint32_t> Resampler::resolve(const WAVEFORMATEX *game_format) {
-        if (game_format == nullptr || !RESAMPLE_RATE.has_value()) {
-            return std::nullopt;
-        }
-        if (game_format->nSamplesPerSec == 0
-                || game_format->nSamplesPerSec == RESAMPLE_RATE.value()) {
-            return std::nullopt;
-        }
-        return RESAMPLE_RATE;
-    }
-
-    void Resampler::setup(const WAVEFORMATEX *game_format, WAVEFORMATEXTENSIBLE *device_out,
-            uint32_t target_rate) {
-        this->enabled = true;
-        this->channels = game_format->nChannels;
-        this->bytes_per_sample = game_format->wBitsPerSample / 8;
-        this->game_frame_size = this->channels * this->bytes_per_sample;
-
-        this->is_float = is_ieee_float(game_format);
-
-        const bool supported = this->is_float
-            ? this->bytes_per_sample == 4
-            : (this->bytes_per_sample >= 2 && this->bytes_per_sample <= 4);
-        if (!supported) {
-            log_fatal(
-                "audio::resample",
-                "unsupported sample format ({}-bit {}) for -resample",
-                game_format->wBitsPerSample, this->is_float ? "float" : "int");
-        }
-
-        this->src_rate = game_format->nSamplesPerSec;
-        this->dst_rate = target_rate;
-
-        // anti-alias cutoff: full bandwidth when upsampling, scaled down when decimating
-        this->cutoff = std::min(1.0, (double) this->dst_rate / (double) this->src_rate);
-        this->half_taps = 16;
-
-        // precompute the windowed-sinc kernel now that cutoff is known
-        this->build_kernel();
-
-        // prime the queue with half a window of silence so the first outputs have left history
-        this->in_queue.assign((size_t) this->half_taps * this->channels, 0.0f);
-        this->in_pos = this->half_taps;
-
-        this->make_device_format(game_format, device_out, target_rate);
-    }
-
-    void Resampler::make_device_format(const WAVEFORMATEX *game_format,
-            WAVEFORMATEXTENSIBLE *device_out, uint32_t target_rate) {
-        const size_t src_size = sizeof(WAVEFORMATEX) + game_format->cbSize;
-
-        memset(device_out, 0, sizeof(WAVEFORMATEXTENSIBLE));
-        memcpy(device_out, game_format, std::min(src_size, sizeof(WAVEFORMATEXTENSIBLE)));
-
-        device_out->Format.nSamplesPerSec = target_rate;
-        device_out->Format.nAvgBytesPerSec = target_rate * device_out->Format.nBlockAlign;
-    }
-
-    HRESULT Resampler::initialize(IAudioClient *real, AUDCLNT_SHAREMODE share_mode,
-            DWORD stream_flags, REFERENCE_TIME buffer_duration, REFERENCE_TIME periodicity,
-            const WAVEFORMATEX *device_format, LPCGUID session_guid) {
-
-        // the resampler bypasses the OS mixer and talks to the device directly, so it only makes
-        // sense (and only works) for exclusive streams. shared streams are already resampled by
-        // the Windows audio engine, so refuse loudly rather than silently doing nothing.
-        if (share_mode != AUDCLNT_SHAREMODE_EXCLUSIVE) {
-            log_fatal("audio::resample",
-                    "-resample requires WASAPI exclusive mode, but this stream is shared "
-                    "(Windows already resamples shared streams)");
-        }
-
-        // record the pacing model. event-driven streams fill the whole device buffer each period
-        // (produce_exact); timer-driven streams poll padding and write variable partial chunks, so
-        // they drain the pending output to the device's free space each call (flush_timer).
-        this->event_driven = (stream_flags & AUDCLNT_STREAMFLAGS_EVENTCALLBACK) != 0;
-
-        return initialize_with_alignment_retry(real, "audio::resample", share_mode, stream_flags,
-                buffer_duration, periodicity, device_format, session_guid);
-    }
-
-    UINT32 Resampler::frames_device_to_game(UINT32 device_frames) const {
-        if (this->dst_rate == 0) {
-            return device_frames;
-        }
-        // round down so the game never believes it has more room than the device can hold
-        return (UINT32) (((double) device_frames * this->src_rate) / this->dst_rate);
-    }
-
-    UINT32 Resampler::padding_device_to_game(UINT32 device_padding) const {
-        if (this->dst_rate == 0) {
-            return device_padding;
-        }
-        // round up so the reported free space stays conservative
-        return (UINT32) std::ceil(((double) device_padding * this->src_rate) / this->dst_rate);
-    }
-
-    HRESULT Resampler::get_buffer(UINT32 frames, BYTE **ppData) {
-        const size_t needed = (size_t) frames * this->game_frame_size;
-        if (this->scratch.size() < needed) {
-            this->scratch.resize(needed);
-        }
-
-        *ppData = this->scratch.data();
-
-        return S_OK;
-    }
-
-    void Resampler::enqueue_input(UINT32 frames, bool silent) {
-        const int bps = this->bytes_per_sample;
-        const int ch = this->channels;
-        const size_t base = this->in_queue.size();
-
-        this->in_queue.resize(base + (size_t) frames * ch);
-
-        if (silent || bps <= 0 || ch <= 0) {
-            std::fill(this->in_queue.begin() + base, this->in_queue.end(), 0.0f);
-            return;
-        }
-
-        const BYTE *src = this->scratch.data();
-        for (UINT32 f = 0; f < frames; f++) {
-            for (int c = 0; c < ch; c++) {
-                const size_t s = (size_t) f * ch + c;
-                this->in_queue[base + s] = read_sample(src + s * bps, bps, this->is_float);
-            }
-        }
-    }
-
-    void Resampler::build_kernel() {
-        const int taps = 2 * this->half_taps;
-        const int phases = this->kernel_phases;
-        const double cut = this->cutoff;
-        const double radius = (double) this->half_taps;
-
-        // one extra row at frac == 1.0 so emit_frame can interpolate against row p + 1 safely
-        this->kernel_table.resize((size_t) (phases + 1) * taps);
-
-        for (int p = 0; p <= phases; p++) {
-            const double frac = (double) p / (double) phases;
-            for (int k = 0; k < taps; k++) {
-                // tap k maps to input offset t = k - (half_taps - 1), matching emit_frame
-                const double x = frac - (double) (k - (this->half_taps - 1));
-                this->kernel_table[(size_t) p * taps + k] =
-                        (float) (cut * sinc(cut * x) * blackman(x, radius));
-            }
-        }
-    }
-
-    void Resampler::emit_frame() {
-        const int ch = this->channels;
-        const int radius = this->half_taps;
-        const int taps = 2 * radius;
-        const long avail = (long) (this->in_queue.size() / ch);
-        const long center = (long) std::floor(this->in_pos);
-
-        // pick the two kernel rows bracketing this fractional position and the blend between them
-        const double frac = this->in_pos - (double) center;
-        const double fp = frac * (double) this->kernel_phases;
-        const int p0 = (int) fp;
-        const float blend = (float) (fp - (double) p0);
-        const float *row0 = &this->kernel_table[(size_t) p0 * taps];
-        const float *row1 = &this->kernel_table[(size_t) (p0 + 1) * taps];
-
-        // base input index for tap 0 (t = -(radius - 1))
-        const long base = center - (radius - 1);
-
-        for (int c = 0; c < ch; c++) {
-            double acc = 0.0;
-            for (int k = 0; k < taps; k++) {
-                const long idx = base + k;
-                if (idx < 0 || idx >= avail) {
-                    continue;
-                }
-                const float w = row0[k] + blend * (row1[k] - row0[k]);
-                acc += (double) this->in_queue[(size_t) idx * ch + c] * w;
-            }
-            this->out_float.push_back((float) acc);
-        }
-    }
-
-    void Resampler::drop_consumed() {
-        const int ch = this->channels;
-        const long drop = (long) std::floor(this->in_pos) - this->half_taps;
-        if (drop > 0) {
-            const size_t drop_samples = (size_t) drop * ch;
-            if (drop_samples <= this->in_queue.size()) {
-                this->in_queue.erase(this->in_queue.begin(),
-                        this->in_queue.begin() + drop_samples);
-                this->in_pos -= drop;
-            }
-        }
-    }
-
-    UINT32 Resampler::produce_exact(UINT32 out_frames) {
-        const int ch = this->channels;
-        this->out_float.clear();
-        if (ch <= 0 || out_frames == 0) {
-            return 0;
-        }
-        this->out_float.reserve((size_t) out_frames * ch);
-
-        // resample ratio. drive it from the buffer size actually advertised to the game rather
-        // than the nominal src/dst ratio: GetBufferSize reports floor(dev_buf * src/dst) game
-        // frames, so the game only ever delivers that many input frames per device period.
-        // consuming at the nominal ratio would eat slightly more input than arrives on any device
-        // where dev_buf * src/dst is non-integer (e.g. 144 -> 132.3, floored to 132), slowly
-        // draining the queue until it underruns to permanent silence. using the advertised integer
-        // ratio keeps input and output exactly balanced; the resulting pitch error is below 0.3%
-        // and inaudible, and it collapses to the exact ratio when the division is integer (160 ->
-        // 147 stays 147/160 = 44100/48000).
-        const double step = (double) this->frames_device_to_game(this->device_buffer_frames)
-                / (double) this->device_buffer_frames;
-
-        // input frames the block will touch: from in_pos through the right edge of the sinc kernel
-        // at the final output sample. if the queue is short of this, the kernel tail reads past the
-        // end and distorts every buffer, so buffer one extra block of input before the first output
-        // (emitting silence without consuming) to build a cushion the kernel can always reach into.
-        const long avail = (long) (this->in_queue.size() / ch);
-        const long need = (long) std::ceil(this->in_pos + step * (double) out_frames)
-                + this->half_taps;
-
-        if (this->priming) {
-            if (avail < need + (long) out_frames) {
-                this->out_float.assign((size_t) out_frames * ch, 0.0f);
-                return out_frames;
-            }
-            this->priming = false;
-        }
-
-        for (UINT32 o = 0; o < out_frames; o++) {
-            this->emit_frame();
-            this->in_pos += step;
-        }
-
-        this->drop_consumed();
-        return out_frames;
-    }
-
-    UINT32 Resampler::produce_variable() {
-        const int ch = this->channels;
-        if (ch <= 0) {
-            return 0;
-        }
-
-        // input frames consumed per output frame. timer-driven streams write variable partial
-        // chunks, so produce however many output frames the currently queued input can fully
-        // support and leave the rest for the next call; this keeps input and output balanced at
-        // the exact src/dst ratio over time without depending on the device buffer size.
-        const double step = (double) this->src_rate / (double) this->dst_rate;
-        const long avail = (long) (this->in_queue.size() / ch);
-
-        // emit only while the sinc kernel's right edge stays within the queued input. the kernel
-        // reaches from in_pos out to half_taps frames ahead, so stop once that would read past the
-        // end; the remaining input becomes the next block's lookahead.
-        UINT32 produced = 0;
-        while ((long) std::ceil(this->in_pos) + this->half_taps < avail) {
-            this->emit_frame();
-            this->in_pos += step;
-            produced++;
-        }
-
-        this->drop_consumed();
-        return produced;
-    }
-
-    void Resampler::write_output(BYTE *dst, UINT32 frames, float gain) const {
-        const int bps = this->bytes_per_sample;
-        const int ch = this->channels;
-        const size_t count = (size_t) frames * ch;
-
-        for (size_t i = 0; i < count; i++) {
-            write_sample(dst + i * bps, bps, this->is_float, this->out_float[i] * gain);
-        }
-    }
-
-    HRESULT Resampler::flush(IAudioRenderClient *real, IAudioClient *client, UINT32 frames,
-            DWORD flags, float boost) {
-        if (!this->enabled) {
-            return S_OK;
-        }
-
-        // cache the device buffer size once
-        if (this->device_buffer_frames == 0) {
-            client->GetBufferSize(&this->device_buffer_frames);
-        }
-        if (this->device_buffer_frames == 0) {
-            return S_OK;
-        }
-
-        const bool silent = (flags & AUDCLNT_BUFFERFLAGS_SILENT) != 0;
-        this->enqueue_input(frames, silent);
-
-        // confirm once that conversion actually started producing output
-        static std::once_flag active_printed;
-        std::call_once(active_printed, [this]() {
-            log_info("audio::resample", "resample active: {} Hz -> {} Hz ({} ch, {})",
-                    this->src_rate, this->dst_rate, this->channels,
-                    this->event_driven ? "event-driven" : "timer-driven");
-        });
-
-        // the boost is applied here (inside write_output) rather than in the standard ReleaseBuffer
-        // path, so log it once for parity with that path's "volume boost active" line.
-        if (boost != 1.0f) {
-            static std::once_flag boost_printed;
-            std::call_once(boost_printed, [boost]() {
-                log_info("audio::resample", "volume boost active (resample): gain={}", boost);
-            });
-        }
-
-        return this->event_driven
-                ? this->flush_event(real, boost)
-                : this->flush_timer(real, client, boost);
-    }
-
-    HRESULT Resampler::flush_event(IAudioRenderClient *real, float boost) {
-
-        // event-driven exclusive streams must hand the device a full buffer every period and may
-        // not push partial counts. resample the whole input block into exactly the device buffer
-        // size.
-        const UINT32 produced = this->produce_exact(this->device_buffer_frames);
-        if (produced == 0) {
-            return S_OK;
-        }
-
-        BYTE *dev = nullptr;
-        HRESULT ret = real->GetBuffer(produced, &dev);
-        if (FAILED(ret) || dev == nullptr) {
-            return ret;
-        }
-
-        // mute the first few buffers to avoid a pop on stream start
-        float gain = boost;
-        if (this->buffers_to_mute > 0) {
-            gain = 0.0f;
-            this->buffers_to_mute--;
-        }
-
-        this->write_output(dev, produced, gain);
-
-        return real->ReleaseBuffer(produced, 0);
-    }
-
-    HRESULT Resampler::flush_timer(IAudioRenderClient *real, IAudioClient *client, float boost) {
-
-        // convert everything currently queued into the pending output FIFO (out_float). timer-
-        // driven games write variable partial chunks, so produce only what the queued input can
-        // fully support and keep the remainder for the next call.
-        this->produce_variable();
-
-        const int ch = this->channels;
-        if (ch <= 0) {
-            return S_OK;
-        }
-
-        const UINT32 pending = (UINT32) (this->out_float.size() / ch);
-        if (pending == 0) {
-            return S_OK;
-        }
-
-        // push as many frames as the device currently has free, keeping the rest queued for the
-        // next call. timer-driven games poll padding and write whenever there is room, so matching
-        // the device's free space here avoids overflowing the ring while staying device-paced.
-        UINT32 padding = 0;
-        if (FAILED(client->GetCurrentPadding(&padding))) {
-            return S_OK;
-        }
-        const UINT32 device_free = this->device_buffer_frames > padding
-                ? this->device_buffer_frames - padding
-                : 0;
-        if (device_free == 0) {
-            return S_OK;
-        }
-
-        const UINT32 to_write = std::min(pending, device_free);
-
-        BYTE *dev = nullptr;
-        HRESULT ret = real->GetBuffer(to_write, &dev);
-        if (FAILED(ret) || dev == nullptr) {
-            return ret;
-        }
-
-        // mute the first few buffers to avoid a pop on stream start
-        float gain = boost;
-        if (this->buffers_to_mute > 0) {
-            gain = 0.0f;
-            this->buffers_to_mute--;
-        }
-
-        this->write_output(dev, to_write, gain);
-        ret = real->ReleaseBuffer(to_write, 0);
-
-        // drop the frames just written from the front of the pending FIFO
-        this->out_float.erase(this->out_float.begin(),
-                this->out_float.begin() + (size_t) to_write * ch);
-
-        return ret;
-    }
-}
+#include "resample.h"
+
+#include <algorithm>
+#include <cmath>
+#include <cstdint>
+#include <cstring>
+#include <mutex>
+
+#include <audioclient.h>
+
+#include "util/logging.h"
+
+#include "util.h"
+
+namespace hooks::audio {
+
+    namespace {
+
+        constexpr double PI = 3.14159265358979323846;
+
+        // normalized sinc: sin(pi*x) / (pi*x), with the removable singularity at 0 filled in
+        inline double sinc(double x) {
+            if (x == 0.0) {
+                return 1.0;
+            }
+            const double px = PI * x;
+            return std::sin(px) / px;
+        }
+
+        // Blackman window across the kernel radius; zero at +/- radius
+        inline double blackman(double x, double radius) {
+            const double n = (x + radius) / (2.0 * radius);
+            if (n <= 0.0 || n >= 1.0) {
+                return 0.0;
+            }
+            return 0.42 - 0.5 * std::cos(2.0 * PI * n) + 0.08 * std::cos(4.0 * PI * n);
+        }
+    }
+
+    std::optional<uint32_t> Resampler::resolve(const WAVEFORMATEX *game_format) {
+        if (game_format == nullptr || !RESAMPLE_RATE.has_value()) {
+            return std::nullopt;
+        }
+        if (game_format->nSamplesPerSec == 0
+                || game_format->nSamplesPerSec == RESAMPLE_RATE.value()) {
+            return std::nullopt;
+        }
+        return RESAMPLE_RATE;
+    }
+
+    void Resampler::setup(const WAVEFORMATEX *game_format, WAVEFORMATEXTENSIBLE *device_out,
+            uint32_t target_rate) {
+        this->enabled = true;
+        this->channels = game_format->nChannels;
+        this->bytes_per_sample = game_format->wBitsPerSample / 8;
+        this->game_frame_size = this->channels * this->bytes_per_sample;
+
+        this->is_float = is_ieee_float(game_format);
+
+        const bool supported = this->is_float
+            ? this->bytes_per_sample == 4
+            : (this->bytes_per_sample >= 2 && this->bytes_per_sample <= 4);
+        if (!supported) {
+            log_fatal(
+                "audio::resample",
+                "unsupported sample format ({}-bit {}) for -resample",
+                game_format->wBitsPerSample, this->is_float ? "float" : "int");
+        }
+
+        this->src_rate = game_format->nSamplesPerSec;
+        this->dst_rate = target_rate;
+
+        // anti-alias cutoff: full bandwidth when upsampling, scaled down when decimating
+        this->cutoff = std::min(1.0, (double) this->dst_rate / (double) this->src_rate);
+        this->half_taps = 16;
+
+        // precompute the windowed-sinc kernel now that cutoff is known
+        this->build_kernel();
+
+        // prime the queue with half a window of silence so the first outputs have left history
+        this->in_queue.assign((size_t) this->half_taps * this->channels, 0.0f);
+        this->in_pos = this->half_taps;
+
+        this->make_device_format(game_format, device_out, target_rate);
+    }
+
+    void Resampler::make_device_format(const WAVEFORMATEX *game_format,
+            WAVEFORMATEXTENSIBLE *device_out, uint32_t target_rate) {
+        const size_t src_size = sizeof(WAVEFORMATEX) + game_format->cbSize;
+
+        memset(device_out, 0, sizeof(WAVEFORMATEXTENSIBLE));
+        memcpy(device_out, game_format, std::min(src_size, sizeof(WAVEFORMATEXTENSIBLE)));
+
+        device_out->Format.nSamplesPerSec = target_rate;
+        device_out->Format.nAvgBytesPerSec = target_rate * device_out->Format.nBlockAlign;
+    }
+
+    HRESULT Resampler::initialize(IAudioClient *real, AUDCLNT_SHAREMODE share_mode,
+            DWORD stream_flags, REFERENCE_TIME buffer_duration, REFERENCE_TIME periodicity,
+            const WAVEFORMATEX *device_format, LPCGUID session_guid) {
+
+        // the resampler bypasses the OS mixer and talks to the device directly, so it only makes
+        // sense (and only works) for exclusive streams. shared streams are already resampled by
+        // the Windows audio engine, so refuse loudly rather than silently doing nothing.
+        if (share_mode != AUDCLNT_SHAREMODE_EXCLUSIVE) {
+            log_fatal("audio::resample",
+                    "-resample requires WASAPI exclusive mode, but this stream is shared "
+                    "(Windows already resamples shared streams)");
+        }
+
+        // record the pacing model. event-driven streams fill the whole device buffer each period
+        // (produce_exact); timer-driven streams poll padding and write variable partial chunks, so
+        // they drain the pending output to the device's free space each call (flush_timer).
+        this->event_driven = (stream_flags & AUDCLNT_STREAMFLAGS_EVENTCALLBACK) != 0;
+
+        return initialize_with_alignment_retry(real, "audio::resample", share_mode, stream_flags,
+                buffer_duration, periodicity, device_format, session_guid);
+    }
+
+    UINT32 Resampler::frames_device_to_game(UINT32 device_frames) const {
+        if (this->dst_rate == 0) {
+            return device_frames;
+        }
+        // round down so the game never believes it has more room than the device can hold
+        return (UINT32) (((double) device_frames * this->src_rate) / this->dst_rate);
+    }
+
+    UINT32 Resampler::padding_device_to_game(UINT32 device_padding) const {
+        if (this->dst_rate == 0) {
+            return device_padding;
+        }
+        // round up so the reported free space stays conservative
+        return (UINT32) std::ceil(((double) device_padding * this->src_rate) / this->dst_rate);
+    }
+
+    HRESULT Resampler::get_buffer(UINT32 frames, BYTE **ppData) {
+        const size_t needed = (size_t) frames * this->game_frame_size;
+        if (this->scratch.size() < needed) {
+            this->scratch.resize(needed);
+        }
+
+        *ppData = this->scratch.data();
+
+        return S_OK;
+    }
+
+    void Resampler::enqueue_input(UINT32 frames, bool silent) {
+        const int bps = this->bytes_per_sample;
+        const int ch = this->channels;
+        const size_t base = this->in_queue.size();
+
+        this->in_queue.resize(base + (size_t) frames * ch);
+
+        if (silent || bps <= 0 || ch <= 0) {
+            std::fill(this->in_queue.begin() + base, this->in_queue.end(), 0.0f);
+            return;
+        }
+
+        const BYTE *src = this->scratch.data();
+        for (UINT32 f = 0; f < frames; f++) {
+            for (int c = 0; c < ch; c++) {
+                const size_t s = (size_t) f * ch + c;
+                this->in_queue[base + s] = read_sample(src + s * bps, bps, this->is_float);
+            }
+        }
+    }
+
+    void Resampler::build_kernel() {
+        const int taps = 2 * this->half_taps;
+        const int phases = this->kernel_phases;
+        const double cut = this->cutoff;
+        const double radius = (double) this->half_taps;
+
+        // one extra row at frac == 1.0 so emit_frame can interpolate against row p + 1 safely
+        this->kernel_table.resize((size_t) (phases + 1) * taps);
+
+        for (int p = 0; p <= phases; p++) {
+            const double frac = (double) p / (double) phases;
+            for (int k = 0; k < taps; k++) {
+                // tap k maps to input offset t = k - (half_taps - 1), matching emit_frame
+                const double x = frac - (double) (k - (this->half_taps - 1));
+                this->kernel_table[(size_t) p * taps + k] =
+                        (float) (cut * sinc(cut * x) * blackman(x, radius));
+            }
+        }
+    }
+
+    void Resampler::emit_frame() {
+        const int ch = this->channels;
+        const int radius = this->half_taps;
+        const int taps = 2 * radius;
+        const long avail = (long) (this->in_queue.size() / ch);
+        const long center = (long) std::floor(this->in_pos);
+
+        // pick the two kernel rows bracketing this fractional position and the blend between them
+        const double frac = this->in_pos - (double) center;
+        const double fp = frac * (double) this->kernel_phases;
+        const int p0 = (int) fp;
+        const float blend = (float) (fp - (double) p0);
+        const float *row0 = &this->kernel_table[(size_t) p0 * taps];
+        const float *row1 = &this->kernel_table[(size_t) (p0 + 1) * taps];
+
+        // base input index for tap 0 (t = -(radius - 1))
+        const long base = center - (radius - 1);
+
+        for (int c = 0; c < ch; c++) {
+            double acc = 0.0;
+            for (int k = 0; k < taps; k++) {
+                const long idx = base + k;
+                if (idx < 0 || idx >= avail) {
+                    continue;
+                }
+                const float w = row0[k] + blend * (row1[k] - row0[k]);
+                acc += (double) this->in_queue[(size_t) idx * ch + c] * w;
+            }
+            this->out_float.push_back((float) acc);
+        }
+    }
+
+    void Resampler::drop_consumed() {
+        const int ch = this->channels;
+        const long drop = (long) std::floor(this->in_pos) - this->half_taps;
+        if (drop > 0) {
+            const size_t drop_samples = (size_t) drop * ch;
+            if (drop_samples <= this->in_queue.size()) {
+                this->in_queue.erase(this->in_queue.begin(),
+                        this->in_queue.begin() + drop_samples);
+                this->in_pos -= drop;
+            }
+        }
+    }
+
+    UINT32 Resampler::produce_exact(UINT32 out_frames) {
+        const int ch = this->channels;
+        this->out_float.clear();
+        if (ch <= 0 || out_frames == 0) {
+            return 0;
+        }
+        this->out_float.reserve((size_t) out_frames * ch);
+
+        // resample ratio. drive it from the buffer size actually advertised to the game rather
+        // than the nominal src/dst ratio: GetBufferSize reports floor(dev_buf * src/dst) game
+        // frames, so the game only ever delivers that many input frames per device period.
+        // consuming at the nominal ratio would eat slightly more input than arrives on any device
+        // where dev_buf * src/dst is non-integer (e.g. 144 -> 132.3, floored to 132), slowly
+        // draining the queue until it underruns to permanent silence. using the advertised integer
+        // ratio keeps input and output exactly balanced; the resulting pitch error is below 0.3%
+        // and inaudible, and it collapses to the exact ratio when the division is integer (160 ->
+        // 147 stays 147/160 = 44100/48000).
+        const double step = (double) this->frames_device_to_game(this->device_buffer_frames)
+                / (double) this->device_buffer_frames;
+
+        // input frames the block will touch: from in_pos through the right edge of the sinc kernel
+        // at the final output sample. if the queue is short of this, the kernel tail reads past the
+        // end and distorts every buffer, so buffer one extra block of input before the first output
+        // (emitting silence without consuming) to build a cushion the kernel can always reach into.
+        const long avail = (long) (this->in_queue.size() / ch);
+        const long need = (long) std::ceil(this->in_pos + step * (double) out_frames)
+                + this->half_taps;
+
+        if (this->priming) {
+            if (avail < need + (long) out_frames) {
+                this->out_float.assign((size_t) out_frames * ch, 0.0f);
+                return out_frames;
+            }
+            this->priming = false;
+        }
+
+        for (UINT32 o = 0; o < out_frames; o++) {
+            this->emit_frame();
+            this->in_pos += step;
+        }
+
+        this->drop_consumed();
+        return out_frames;
+    }
+
+    UINT32 Resampler::produce_variable() {
+        const int ch = this->channels;
+        if (ch <= 0) {
+            return 0;
+        }
+
+        // input frames consumed per output frame. timer-driven streams write variable partial
+        // chunks, so produce however many output frames the currently queued input can fully
+        // support and leave the rest for the next call; this keeps input and output balanced at
+        // the exact src/dst ratio over time without depending on the device buffer size.
+        const double step = (double) this->src_rate / (double) this->dst_rate;
+        const long avail = (long) (this->in_queue.size() / ch);
+
+        // emit only while the sinc kernel's right edge stays within the queued input. the kernel
+        // reaches from in_pos out to half_taps frames ahead, so stop once that would read past the
+        // end; the remaining input becomes the next block's lookahead.
+        UINT32 produced = 0;
+        while ((long) std::ceil(this->in_pos) + this->half_taps < avail) {
+            this->emit_frame();
+            this->in_pos += step;
+            produced++;
+        }
+
+        this->drop_consumed();
+        return produced;
+    }
+
+    void Resampler::write_output(BYTE *dst, UINT32 frames, float gain) const {
+        const int bps = this->bytes_per_sample;
+        const int ch = this->channels;
+        const size_t count = (size_t) frames * ch;
+
+        for (size_t i = 0; i < count; i++) {
+            write_sample(dst + i * bps, bps, this->is_float, this->out_float[i] * gain);
+        }
+    }
+
+    HRESULT Resampler::flush(IAudioRenderClient *real, IAudioClient *client, UINT32 frames,
+            DWORD flags, float boost) {
+        if (!this->enabled) {
+            return S_OK;
+        }
+
+        // cache the device buffer size once
+        if (this->device_buffer_frames == 0) {
+            client->GetBufferSize(&this->device_buffer_frames);
+        }
+        if (this->device_buffer_frames == 0) {
+            return S_OK;
+        }
+
+        const bool silent = (flags & AUDCLNT_BUFFERFLAGS_SILENT) != 0;
+        this->enqueue_input(frames, silent);
+
+        // confirm once that conversion actually started producing output
+        static std::once_flag active_printed;
+        std::call_once(active_printed, [this]() {
+            log_info("audio::resample", "resample active: {} Hz -> {} Hz ({} ch, {})",
+                    this->src_rate, this->dst_rate, this->channels,
+                    this->event_driven ? "event-driven" : "timer-driven");
+        });
+
+        // the boost is applied here (inside write_output) rather than in the standard ReleaseBuffer
+        // path, so log it once for parity with that path's "volume boost active" line.
+        if (boost != 1.0f) {
+            static std::once_flag boost_printed;
+            std::call_once(boost_printed, [boost]() {
+                log_info("audio::resample", "volume boost active (resample): gain={}", boost);
+            });
+        }
+
+        return this->event_driven
+                ? this->flush_event(real, boost)
+                : this->flush_timer(real, client, boost);
+    }
+
+    HRESULT Resampler::flush_event(IAudioRenderClient *real, float boost) {
+
+        // event-driven exclusive streams must hand the device a full buffer every period and may
+        // not push partial counts. resample the whole input block into exactly the device buffer
+        // size.
+        const UINT32 produced = this->produce_exact(this->device_buffer_frames);
+        if (produced == 0) {
+            return S_OK;
+        }
+
+        BYTE *dev = nullptr;
+        HRESULT ret = real->GetBuffer(produced, &dev);
+        if (FAILED(ret) || dev == nullptr) {
+            return ret;
+        }
+
+        // mute the first few buffers to avoid a pop on stream start
+        float gain = boost;
+        if (this->buffers_to_mute > 0) {
+            gain = 0.0f;
+            this->buffers_to_mute--;
+        }
+
+        this->write_output(dev, produced, gain);
+
+        return real->ReleaseBuffer(produced, 0);
+    }
+
+    HRESULT Resampler::flush_timer(IAudioRenderClient *real, IAudioClient *client, float boost) {
+
+        // convert everything currently queued into the pending output FIFO (out_float). timer-
+        // driven games write variable partial chunks, so produce only what the queued input can
+        // fully support and keep the remainder for the next call.
+        this->produce_variable();
+
+        const int ch = this->channels;
+        if (ch <= 0) {
+            return S_OK;
+        }
+
+        const UINT32 pending = (UINT32) (this->out_float.size() / ch);
+        if (pending == 0) {
+            return S_OK;
+        }
+
+        // push as many frames as the device currently has free, keeping the rest queued for the
+        // next call. timer-driven games poll padding and write whenever there is room, so matching
+        // the device's free space here avoids overflowing the ring while staying device-paced.
+        UINT32 padding = 0;
+        if (FAILED(client->GetCurrentPadding(&padding))) {
+            return S_OK;
+        }
+        const UINT32 device_free = this->device_buffer_frames > padding
+                ? this->device_buffer_frames - padding
+                : 0;
+        if (device_free == 0) {
+            return S_OK;
+        }
+
+        const UINT32 to_write = std::min(pending, device_free);
+
+        BYTE *dev = nullptr;
+        HRESULT ret = real->GetBuffer(to_write, &dev);
+        if (FAILED(ret) || dev == nullptr) {
+            return ret;
+        }
+
+        // mute the first few buffers to avoid a pop on stream start
+        float gain = boost;
+        if (this->buffers_to_mute > 0) {
+            gain = 0.0f;
+            this->buffers_to_mute--;
+        }
+
+        this->write_output(dev, to_write, gain);
+        ret = real->ReleaseBuffer(to_write, 0);
+
+        // drop the frames just written from the front of the pending FIFO
+        this->out_float.erase(this->out_float.begin(),
+                this->out_float.begin() + (size_t) to_write * ch);
+
+        return ret;
+    }
+}
@@ -1,149 +1,149 @@
-#pragma once
-
-#include <cstdint>
-#include <optional>
-#include <vector>
-
-#include <windows.h>
-#include <mmreg.h>
-#include <audioclient.h>
-
-#include "hooks/audio/audio.h"
-
-struct IAudioClient;
-struct IAudioRenderClient;
-
-namespace hooks::audio {
-
-    // Streaming sample-rate converter for the WASAPI render path. The real device is opened at the
-    // target rate while the game keeps writing its native-rate audio into a scratch buffer; on
-    // release that buffer is converted with a windowed-sinc kernel and pushed to the device.
-    // Channel count and sample format are preserved; only the sample rate changes.
-    //
-    // Frame counts differ between the two rates, so unlike the per-frame downmix this is stateful:
-    // a fractional read position and a window of input history carry across ReleaseBuffer calls,
-    // and the device buffer is only filled up to the space the device currently has free.
-    struct Resampler {
-
-        // whether the resampler is active for the current stream
-        bool enabled = false;
-
-        // whether the stream is event-driven (AUDCLNT_STREAMFLAGS_EVENTCALLBACK). timer-driven
-        // streams instead poll padding and write variable partial chunks, so they drain the
-        // pending output to the device's free space rather than pushing a full buffer per period.
-        bool event_driven = true;
-
-        // decide whether the stream should be resampled and to which rate. returns the target rate
-        // when RESAMPLE_RATE is set and differs from the game's rate, otherwise nullopt.
-        static std::optional<uint32_t> resolve(const WAVEFORMATEX *game_format);
-
-        // enable resampling for game_format and fill device_out with the equivalent format at the
-        // target rate to open the real device with.
-        void setup(const WAVEFORMATEX *game_format, WAVEFORMATEXTENSIBLE *device_out,
-                   uint32_t target_rate);
-
-        // build the device format equivalent to game_format at target_rate (same channels/depth).
-        static void make_device_format(const WAVEFORMATEX *game_format,
-                                       WAVEFORMATEXTENSIBLE *device_out, uint32_t target_rate);
-
-        // initialize the real device at the target rate, performing the standard WASAPI buffer
-        // realignment retry on AUDCLNT_E_BUFFER_SIZE_NOT_ALIGNED.
-        HRESULT initialize(IAudioClient *real, AUDCLNT_SHAREMODE share_mode, DWORD stream_flags,
-                           REFERENCE_TIME buffer_duration, REFERENCE_TIME periodicity,
-                           const WAVEFORMATEX *device_format, LPCGUID session_guid);
-
-        // translate a device-rate frame count to the equivalent game-rate count, so the buffer-size
-        // and padding values reported to the game stay paced at the game's native rate.
-        UINT32 frames_device_to_game(UINT32 device_frames) const;
-        UINT32 padding_device_to_game(UINT32 device_padding) const;
-
-        // hand the game a scratch buffer sized for `frames` of its native format to write into.
-        HRESULT get_buffer(UINT32 frames, BYTE **ppData);
-
-        // pointer to the input scratch (sized by get_buffer). when chained after the downmix, the
-        // downmix writes its stereo output here for the resampler to consume on the next flush.
-        BYTE *input_data() { return this->scratch.data(); }
-
-        // convert the `frames` the game wrote and push output to the real render client. `boost`
-        // is applied to the converted output. event-driven streams fill exactly one device buffer
-        // per period; timer-driven streams push as many converted frames as the device has free.
-        HRESULT flush(IAudioRenderClient *real, IAudioClient *client, UINT32 frames, DWORD flags,
-                      float boost);
-
-    private:
-
-        // append `frames` of the scratch buffer (native format), or silence, to the input queue
-        void enqueue_input(UINT32 frames, bool silent);
-
-        // event-driven path: produce exactly one full device buffer and push it.
-        HRESULT flush_event(IAudioRenderClient *real, float boost);
-
-        // timer-driven path: convert all queued input into the pending output FIFO, then push as
-        // many frames as the device currently has free, keeping the remainder for the next call.
-        HRESULT flush_timer(IAudioRenderClient *real, IAudioClient *client, float boost);
-
-        // produce exactly out_frames output frames using the fixed src/dst ratio. event-driven
-        // exclusive streams must fill the whole device buffer every period; a small input cushion
-        // is buffered first (see priming) so the sinc kernel always has lookahead.
-        UINT32 produce_exact(UINT32 out_frames);
-
-        // convert all input the kernel can fully support into the pending output FIFO (out_float),
-        // appending without clearing. returns the number of frames produced. used by the
-        // timer-driven path where output is drained to the device in device-paced chunks.
-        UINT32 produce_variable();
-
-        // convolve the windowed-sinc kernel at the current in_pos and append the resulting frame
-        // (one sample per channel) to out_float
-        void emit_frame();
-
-        // precompute the windowed-sinc kernel sampled at kernel_phases sub-sample positions, so
-        // emit_frame is a table lookup instead of recomputing sin/cos per tap (which is far too
-        // expensive to run per sample on the audio callback thread and causes underrun crackle).
-        void build_kernel();
-
-        // drop input frames that in_pos has advanced past, keeping a window of history for the
-        // next block's left context
-        void drop_consumed();
-
-        // convert the first `frames` of out_float to the device format, scaled by `gain`
-        void write_output(BYTE *dst, UINT32 frames, float gain) const;
-
-        // sample format of the stream
-        int channels = 0;
-        int bytes_per_sample = 0;
-        bool is_float = false;
-        int game_frame_size = 0;
-
-        uint32_t src_rate = 0;
-        uint32_t dst_rate = 0;
-
-        // sinc low-pass cutoff (1.0 when upsampling, dst/src when downsampling) and window radius
-        double cutoff = 1.0;
-        int half_taps = 16;
-
-        // precomputed kernel: (kernel_phases + 1) rows of 2*half_taps weights, indexed by the
-        // fractional sample position (linearly interpolated between adjacent rows in emit_frame)
-        std::vector<float> kernel_table;
-        int kernel_phases = 1024;
-
-        // interleaved float input queue and the fractional read position within it (in frames)
-        std::vector<float> in_queue;
-        double in_pos = 0.0;
-
-        // emit silence until a full block of input lookahead has accumulated, so the sinc kernel
-        // never reads past the end of the queue (which would distort the tail of every buffer)
-        bool priming = true;
-
-        // interleaved float scratch for produced output
-        std::vector<float> out_float;
-
-        // buffer the game writes its native-rate audio into between get_buffer / flush
-        std::vector<BYTE> scratch;
-
-        // cached device buffer size (frames); a full buffer is produced every period
-        UINT32 device_buffer_frames = 0;
-
-        // leading buffers to silence to avoid a pop on stream start
-        int buffers_to_mute = 16;
-    };
-}
+#pragma once
+
+#include <cstdint>
+#include <optional>
+#include <vector>
+
+#include <windows.h>
+#include <mmreg.h>
+#include <audioclient.h>
+
+#include "hooks/audio/audio.h"
+
+struct IAudioClient;
+struct IAudioRenderClient;
+
+namespace hooks::audio {
+
+    // Streaming sample-rate converter for the WASAPI render path. The real device is opened at the
+    // target rate while the game keeps writing its native-rate audio into a scratch buffer; on
+    // release that buffer is converted with a windowed-sinc kernel and pushed to the device.
+    // Channel count and sample format are preserved; only the sample rate changes.
+    //
+    // Frame counts differ between the two rates, so unlike the per-frame downmix this is stateful:
+    // a fractional read position and a window of input history carry across ReleaseBuffer calls,
+    // and the device buffer is only filled up to the space the device currently has free.
+    struct Resampler {
+
+        // whether the resampler is active for the current stream
+        bool enabled = false;
+
+        // whether the stream is event-driven (AUDCLNT_STREAMFLAGS_EVENTCALLBACK). timer-driven
+        // streams instead poll padding and write variable partial chunks, so they drain the
+        // pending output to the device's free space rather than pushing a full buffer per period.
+        bool event_driven = true;
+
+        // decide whether the stream should be resampled and to which rate. returns the target rate
+        // when RESAMPLE_RATE is set and differs from the game's rate, otherwise nullopt.
+        static std::optional<uint32_t> resolve(const WAVEFORMATEX *game_format);
+
+        // enable resampling for game_format and fill device_out with the equivalent format at the
+        // target rate to open the real device with.
+        void setup(const WAVEFORMATEX *game_format, WAVEFORMATEXTENSIBLE *device_out,
+                   uint32_t target_rate);
+
+        // build the device format equivalent to game_format at target_rate (same channels/depth).
+        static void make_device_format(const WAVEFORMATEX *game_format,
+                                       WAVEFORMATEXTENSIBLE *device_out, uint32_t target_rate);
+
+        // initialize the real device at the target rate, performing the standard WASAPI buffer
+        // realignment retry on AUDCLNT_E_BUFFER_SIZE_NOT_ALIGNED.
+        HRESULT initialize(IAudioClient *real, AUDCLNT_SHAREMODE share_mode, DWORD stream_flags,
+                           REFERENCE_TIME buffer_duration, REFERENCE_TIME periodicity,
+                           const WAVEFORMATEX *device_format, LPCGUID session_guid);
+
+        // translate a device-rate frame count to the equivalent game-rate count, so the buffer-size
+        // and padding values reported to the game stay paced at the game's native rate.
+        UINT32 frames_device_to_game(UINT32 device_frames) const;
+        UINT32 padding_device_to_game(UINT32 device_padding) const;
+
+        // hand the game a scratch buffer sized for `frames` of its native format to write into.
+        HRESULT get_buffer(UINT32 frames, BYTE **ppData);
+
+        // pointer to the input scratch (sized by get_buffer). when chained after the downmix, the
+        // downmix writes its stereo output here for the resampler to consume on the next flush.
+        BYTE *input_data() { return this->scratch.data(); }
+
+        // convert the `frames` the game wrote and push output to the real render client. `boost`
+        // is applied to the converted output. event-driven streams fill exactly one device buffer
+        // per period; timer-driven streams push as many converted frames as the device has free.
+        HRESULT flush(IAudioRenderClient *real, IAudioClient *client, UINT32 frames, DWORD flags,
+                      float boost);
+
+    private:
+
+        // append `frames` of the scratch buffer (native format), or silence, to the input queue
+        void enqueue_input(UINT32 frames, bool silent);
+
+        // event-driven path: produce exactly one full device buffer and push it.
+        HRESULT flush_event(IAudioRenderClient *real, float boost);
+
+        // timer-driven path: convert all queued input into the pending output FIFO, then push as
+        // many frames as the device currently has free, keeping the remainder for the next call.
+        HRESULT flush_timer(IAudioRenderClient *real, IAudioClient *client, float boost);
+
+        // produce exactly out_frames output frames using the fixed src/dst ratio. event-driven
+        // exclusive streams must fill the whole device buffer every period; a small input cushion
+        // is buffered first (see priming) so the sinc kernel always has lookahead.
+        UINT32 produce_exact(UINT32 out_frames);
+
+        // convert all input the kernel can fully support into the pending output FIFO (out_float),
+        // appending without clearing. returns the number of frames produced. used by the
+        // timer-driven path where output is drained to the device in device-paced chunks.
+        UINT32 produce_variable();
+
+        // convolve the windowed-sinc kernel at the current in_pos and append the resulting frame
+        // (one sample per channel) to out_float
+        void emit_frame();
+
+        // precompute the windowed-sinc kernel sampled at kernel_phases sub-sample positions, so
+        // emit_frame is a table lookup instead of recomputing sin/cos per tap (which is far too
+        // expensive to run per sample on the audio callback thread and causes underrun crackle).
+        void build_kernel();
+
+        // drop input frames that in_pos has advanced past, keeping a window of history for the
+        // next block's left context
+        void drop_consumed();
+
+        // convert the first `frames` of out_float to the device format, scaled by `gain`
+        void write_output(BYTE *dst, UINT32 frames, float gain) const;
+
+        // sample format of the stream
+        int channels = 0;
+        int bytes_per_sample = 0;
+        bool is_float = false;
+        int game_frame_size = 0;
+
+        uint32_t src_rate = 0;
+        uint32_t dst_rate = 0;
+
+        // sinc low-pass cutoff (1.0 when upsampling, dst/src when downsampling) and window radius
+        double cutoff = 1.0;
+        int half_taps = 16;
+
+        // precomputed kernel: (kernel_phases + 1) rows of 2*half_taps weights, indexed by the
+        // fractional sample position (linearly interpolated between adjacent rows in emit_frame)
+        std::vector<float> kernel_table;
+        int kernel_phases = 1024;
+
+        // interleaved float input queue and the fractional read position within it (in frames)
+        std::vector<float> in_queue;
+        double in_pos = 0.0;
+
+        // emit silence until a full block of input lookahead has accumulated, so the sinc kernel
+        // never reads past the end of the queue (which would distort the tail of every buffer)
+        bool priming = true;
+
+        // interleaved float scratch for produced output
+        std::vector<float> out_float;
+
+        // buffer the game writes its native-rate audio into between get_buffer / flush
+        std::vector<BYTE> scratch;
+
+        // cached device buffer size (frames); a full buffer is produced every period
+        UINT32 device_buffer_frames = 0;
+
+        // leading buffers to silence to avoid a pop on stream start
+        int buffers_to_mute = 16;
+    };
+}
@@ -1,187 +1,187 @@
-#include "shared.h"
-
-#include <algorithm>
-
-#include <audioclient.h>
-
-#include "hooks/audio/audio.h"
-#include "util/logging.h"
-
-#include "util.h"
-#include "defs.h"
-
-namespace hooks::audio {
-
-    // whether the engine's PCM converter can handle this format. PCM / float only; non-PCM
-    // bitstream (AC-3 / DTS passthrough) must be left alone.
-    static bool is_pcm_or_float(const WAVEFORMATEX *format) {
-        if (format == nullptr) {
-            return false;
-        }
-
-        switch (format->wFormatTag) {
-            case WAVE_FORMAT_PCM:
-            case WAVE_FORMAT_IEEE_FLOAT:
-                return true;
-            case WAVE_FORMAT_EXTENSIBLE: {
-
-                // SubFormat is only valid when the extra-bytes block is large enough
-                if (format->cbSize < sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX)) {
-                    return false;
-                }
-                const auto *ext = reinterpret_cast<const WAVEFORMATEXTENSIBLE *>(format);
-                return ext->SubFormat == GUID_KSDATAFORMAT_SUBTYPE_PCM
-                        || ext->SubFormat == GUID_KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
-            }
-            default:
-                return false;
-        }
-    }
-
-    bool SharedRedirect::wants(AUDCLNT_SHAREMODE share_mode, const WAVEFORMATEX *format) {
-
-        // only redirect PCM / float exclusive streams: the engine converter (AUTOCONVERTPCM) can
-        // handle those, but non-PCM bitstream (AC-3 / DTS passthrough) would fail in shared mode,
-        // so leave it in exclusive untouched.
-        return hooks::audio::WASAPI_COMPATIBILITY_MODE
-                && share_mode == AUDCLNT_SHAREMODE_EXCLUSIVE
-                && is_pcm_or_float(format);
-    }
-
-    void SharedRedirect::apply(AUDCLNT_SHAREMODE *share_mode, DWORD *stream_flags,
-            REFERENCE_TIME *periodicity) {
-
-        // shared mode requires periodicity == 0; AUTOCONVERTPCM lets the engine accept the game's
-        // native format (else shared Initialize returns AUDCLNT_E_UNSUPPORTED_FORMAT).
-        log_info("audio::wasapi", "redirecting exclusive WASAPI to shared mode");
-        *share_mode = AUDCLNT_SHAREMODE_SHARED;
-        *periodicity = 0;
-        *stream_flags |= AUDCLNT_STREAMFLAGS_AUTOCONVERTPCM | AUDCLNT_STREAMFLAGS_SRC_DEFAULT_QUALITY;
-        this->redirected_from_exclusive = true;
-    }
-
-    UINT32 SharedRedirect::clamp_buffer_size(IAudioClient *real, uint32_t sample_rate,
-            UINT32 device_frames) {
-        if (!this->redirected_from_exclusive || real == nullptr || sample_rate == 0 || device_frames == 0) {
-            this->reported_frames = device_frames;
-            return device_frames;
-        }
-
-        // GetDevicePeriod returns REFERENCE_TIME units (100 ns), 10^7 per second, so
-        // period_frames = period * sample_rate / 10^7.
-        REFERENCE_TIME period = 0;
-        if (SUCCEEDED(real->GetDevicePeriod(&period, nullptr)) && period > 0) {
-            const UINT32 period_frames = (UINT32) ((period * sample_rate) / 10000000);
-            if (period_frames > 0 && period_frames < device_frames) {
-                this->reported_frames = period_frames;
-                return period_frames;
-            }
-        }
-
-        this->reported_frames = device_frames;
-        return device_frames;
-    }
-
-    void SharedRedirect::enable_bridge(int frame_bytes) {
-        if (!this->redirected_from_exclusive || frame_bytes <= 0) {
-            return;
-        }
-
-        this->frame_bytes = frame_bytes;
-        this->device_buffer_frames = 0;
-        this->fifo.clear();
-
-        log_info("audio::wasapi", "shared-mode buffer bridge enabled (frame size {} bytes)",
-                frame_bytes);
-    }
-
-    BYTE *SharedRedirect::begin_write(UINT32 frames) {
-        // reserve space at the FIFO tail and let the game write straight into it - no scratch copy.
-        this->pending_write_offset = this->fifo.size();
-        this->fifo.resize(this->pending_write_offset + (size_t) frames * this->frame_bytes);
-
-        return this->fifo.data() + this->pending_write_offset;
-    }
-
-    void SharedRedirect::commit_write(UINT32 frames, bool silent) {
-        // trim the tail reservation to the frames actually written; zero it in place if silent.
-        const size_t end = this->pending_write_offset + (size_t) frames * this->frame_bytes;
-        if (silent) {
-            std::fill(this->fifo.begin() + this->pending_write_offset,
-                    this->fifo.begin() + end, (BYTE) 0);
-        }
-        this->fifo.resize(end);
-    }
-
-    UINT32 SharedRedirect::pending_frames() const {
-        if (this->frame_bytes <= 0) {
-            return 0;
-        }
-
-        return (UINT32) (this->fifo.size() / this->frame_bytes);
-    }
-
-    UINT32 SharedRedirect::virtual_padding() const {
-        const UINT32 pending = this->pending_frames();
-        return this->reported_frames > 0 ? std::min(pending, this->reported_frames) : pending;
-    }
-
-    HRESULT SharedRedirect::drain(IAudioRenderClient *real, IAudioClient *client,
-            const WAVEFORMATEXTENSIBLE &device_format, float boost) {
-        if (!this->bridge_enabled()) {
-            return S_OK;
-        }
-
-        // cache the real device buffer size once; it is fixed for the life of the stream.
-        if (this->device_buffer_frames == 0) {
-            if (FAILED(client->GetBufferSize(&this->device_buffer_frames))
-                    || this->device_buffer_frames == 0) {
-                return S_OK;
-            }
-        }
-
-        const UINT32 pending = this->pending_frames();
-        if (pending == 0) {
-            return S_OK;
-        }
-
-        // push only as many frames as the device currently has free, keeping the rest queued. this
-        // self-paces to the engine's real consumption so a full-buffer write never overflows.
-        UINT32 padding = 0;
-        if (FAILED(client->GetCurrentPadding(&padding))) {
-            return S_OK;
-        }
-        const UINT32 device_free = this->device_buffer_frames > padding
-                ? this->device_buffer_frames - padding
-                : 0;
-        if (device_free == 0) {
-            return S_OK;
-        }
-
-        const UINT32 to_write = std::min(pending, device_free);
-
-        BYTE *dev = nullptr;
-        HRESULT ret = real->GetBuffer(to_write, &dev);
-        if (FAILED(ret) || dev == nullptr) {
-            return ret;
-        }
-
-        const size_t bytes = (size_t) to_write * this->frame_bytes;
-        std::copy(this->fifo.begin(), this->fifo.begin() + bytes, dev);
-
-        // mute the first few buffers to avoid a startup pop, then apply the volume boost.
-        if (this->buffers_to_mute > 0) {
-            std::fill(dev, dev + bytes, (BYTE) 0);
-            this->buffers_to_mute--;
-        } else if (boost != 1.0f) {
-            apply_gain(dev, to_write, device_format, boost);
-        }
-
-        ret = real->ReleaseBuffer(to_write, 0);
-
-        // drop the frames just handed to the device from the front of the FIFO.
-        this->fifo.erase(this->fifo.begin(), this->fifo.begin() + bytes);
-
-        return ret;
-    }
-}
+#include "shared.h"
+
+#include <algorithm>
+
+#include <audioclient.h>
+
+#include "hooks/audio/audio.h"
+#include "util/logging.h"
+
+#include "util.h"
+#include "defs.h"
+
+namespace hooks::audio {
+
+    // whether the engine's PCM converter can handle this format. PCM / float only; non-PCM
+    // bitstream (AC-3 / DTS passthrough) must be left alone.
+    static bool is_pcm_or_float(const WAVEFORMATEX *format) {
+        if (format == nullptr) {
+            return false;
+        }
+
+        switch (format->wFormatTag) {
+            case WAVE_FORMAT_PCM:
+            case WAVE_FORMAT_IEEE_FLOAT:
+                return true;
+            case WAVE_FORMAT_EXTENSIBLE: {
+
+                // SubFormat is only valid when the extra-bytes block is large enough
+                if (format->cbSize < sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX)) {
+                    return false;
+                }
+                const auto *ext = reinterpret_cast<const WAVEFORMATEXTENSIBLE *>(format);
+                return ext->SubFormat == GUID_KSDATAFORMAT_SUBTYPE_PCM
+                        || ext->SubFormat == GUID_KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
+            }
+            default:
+                return false;
+        }
+    }
+
+    bool SharedRedirect::wants(AUDCLNT_SHAREMODE share_mode, const WAVEFORMATEX *format) {
+
+        // only redirect PCM / float exclusive streams: the engine converter (AUTOCONVERTPCM) can
+        // handle those, but non-PCM bitstream (AC-3 / DTS passthrough) would fail in shared mode,
+        // so leave it in exclusive untouched.
+        return hooks::audio::WASAPI_COMPATIBILITY_MODE
+                && share_mode == AUDCLNT_SHAREMODE_EXCLUSIVE
+                && is_pcm_or_float(format);
+    }
+
+    void SharedRedirect::apply(AUDCLNT_SHAREMODE *share_mode, DWORD *stream_flags,
+            REFERENCE_TIME *periodicity) {
+
+        // shared mode requires periodicity == 0; AUTOCONVERTPCM lets the engine accept the game's
+        // native format (else shared Initialize returns AUDCLNT_E_UNSUPPORTED_FORMAT).
+        log_info("audio::wasapi", "redirecting exclusive WASAPI to shared mode");
+        *share_mode = AUDCLNT_SHAREMODE_SHARED;
+        *periodicity = 0;
+        *stream_flags |= AUDCLNT_STREAMFLAGS_AUTOCONVERTPCM | AUDCLNT_STREAMFLAGS_SRC_DEFAULT_QUALITY;
+        this->redirected_from_exclusive = true;
+    }
+
+    UINT32 SharedRedirect::clamp_buffer_size(IAudioClient *real, uint32_t sample_rate,
+            UINT32 device_frames) {
+        if (!this->redirected_from_exclusive || real == nullptr || sample_rate == 0 || device_frames == 0) {
+            this->reported_frames = device_frames;
+            return device_frames;
+        }
+
+        // GetDevicePeriod returns REFERENCE_TIME units (100 ns), 10^7 per second, so
+        // period_frames = period * sample_rate / 10^7.
+        REFERENCE_TIME period = 0;
+        if (SUCCEEDED(real->GetDevicePeriod(&period, nullptr)) && period > 0) {
+            const UINT32 period_frames = (UINT32) ((period * sample_rate) / 10000000);
+            if (period_frames > 0 && period_frames < device_frames) {
+                this->reported_frames = period_frames;
+                return period_frames;
+            }
+        }
+
+        this->reported_frames = device_frames;
+        return device_frames;
+    }
+
+    void SharedRedirect::enable_bridge(int frame_bytes) {
+        if (!this->redirected_from_exclusive || frame_bytes <= 0) {
+            return;
+        }
+
+        this->frame_bytes = frame_bytes;
+        this->device_buffer_frames = 0;
+        this->fifo.clear();
+
+        log_info("audio::wasapi", "shared-mode buffer bridge enabled (frame size {} bytes)",
+                frame_bytes);
+    }
+
+    BYTE *SharedRedirect::begin_write(UINT32 frames) {
+        // reserve space at the FIFO tail and let the game write straight into it - no scratch copy.
+        this->pending_write_offset = this->fifo.size();
+        this->fifo.resize(this->pending_write_offset + (size_t) frames * this->frame_bytes);
+
+        return this->fifo.data() + this->pending_write_offset;
+    }
+
+    void SharedRedirect::commit_write(UINT32 frames, bool silent) {
+        // trim the tail reservation to the frames actually written; zero it in place if silent.
+        const size_t end = this->pending_write_offset + (size_t) frames * this->frame_bytes;
+        if (silent) {
+            std::fill(this->fifo.begin() + this->pending_write_offset,
+                    this->fifo.begin() + end, (BYTE) 0);
+        }
+        this->fifo.resize(end);
+    }
+
+    UINT32 SharedRedirect::pending_frames() const {
+        if (this->frame_bytes <= 0) {
+            return 0;
+        }
+
+        return (UINT32) (this->fifo.size() / this->frame_bytes);
+    }
+
+    UINT32 SharedRedirect::virtual_padding() const {
+        const UINT32 pending = this->pending_frames();
+        return this->reported_frames > 0 ? std::min(pending, this->reported_frames) : pending;
+    }
+
+    HRESULT SharedRedirect::drain(IAudioRenderClient *real, IAudioClient *client,
+            const WAVEFORMATEXTENSIBLE &device_format, float boost) {
+        if (!this->bridge_enabled()) {
+            return S_OK;
+        }
+
+        // cache the real device buffer size once; it is fixed for the life of the stream.
+        if (this->device_buffer_frames == 0) {
+            if (FAILED(client->GetBufferSize(&this->device_buffer_frames))
+                    || this->device_buffer_frames == 0) {
+                return S_OK;
+            }
+        }
+
+        const UINT32 pending = this->pending_frames();
+        if (pending == 0) {
+            return S_OK;
+        }
+
+        // push only as many frames as the device currently has free, keeping the rest queued. this
+        // self-paces to the engine's real consumption so a full-buffer write never overflows.
+        UINT32 padding = 0;
+        if (FAILED(client->GetCurrentPadding(&padding))) {
+            return S_OK;
+        }
+        const UINT32 device_free = this->device_buffer_frames > padding
+                ? this->device_buffer_frames - padding
+                : 0;
+        if (device_free == 0) {
+            return S_OK;
+        }
+
+        const UINT32 to_write = std::min(pending, device_free);
+
+        BYTE *dev = nullptr;
+        HRESULT ret = real->GetBuffer(to_write, &dev);
+        if (FAILED(ret) || dev == nullptr) {
+            return ret;
+        }
+
+        const size_t bytes = (size_t) to_write * this->frame_bytes;
+        std::copy(this->fifo.begin(), this->fifo.begin() + bytes, dev);
+
+        // mute the first few buffers to avoid a startup pop, then apply the volume boost.
+        if (this->buffers_to_mute > 0) {
+            std::fill(dev, dev + bytes, (BYTE) 0);
+            this->buffers_to_mute--;
+        } else if (boost != 1.0f) {
+            apply_gain(dev, to_write, device_format, boost);
+        }
+
+        ret = real->ReleaseBuffer(to_write, 0);
+
+        // drop the frames just handed to the device from the front of the FIFO.
+        this->fifo.erase(this->fifo.begin(), this->fifo.begin() + bytes);
+
+        return ret;
+    }
+}
@@ -1,83 +1,83 @@
-#pragma once
-
-#include <cstdint>
-#include <vector>
-
-#include <windows.h>
-#include <mmreg.h>
-#include <audioclient.h>
-
-struct IAudioRenderClient;
-
-namespace hooks::audio {
-
-    // The -wasapishared option redirects an exclusive WASAPI stream to shared mode, so other apps
-    // can play sound and devices that can't open the exclusive format still work, at the cost of
-    // some latency. Only PCM / float is converted; bitstream (AC-3 / DTS) is left alone.
-    struct SharedRedirect {
-
-        // true once apply() has redirected an exclusive request. gates the buffer clamp; stays false
-        // for a natively-shared stream (it paces itself, so must not be clamped).
-        bool redirected_from_exclusive = false;
-
-        // whether an exclusive-mode request should be redirected, given the -wasapishared option.
-        // only PCM / float is eligible; bitstream (AC-3 / DTS) is left in exclusive mode.
-        static bool wants(AUDCLNT_SHAREMODE share_mode, const WAVEFORMATEX *format);
-
-        // redirect an exclusive request to shared mode. caller must have checked wants() first.
-        void apply(AUDCLNT_SHAREMODE *share_mode, DWORD *stream_flags, REFERENCE_TIME *periodicity);
-
-        // clamp a reported buffer size to one device period. the FIFO bridge below is what prevents
-        // the overflow; this just keeps the game's per-event writes small so the bridge adds minimal
-        // latency. caches the chosen value for virtual_padding. a no-op unless redirected.
-        UINT32 clamp_buffer_size(IAudioClient *real, uint32_t sample_rate, UINT32 device_frames);
-
-        // FIFO bridge: the redirected game writes a whole reported buffer per event paced by its own
-        // callback, not the shared engine clock, so a full-buffer write can intermittently exceed the
-        // double-buffered shared free space (AUDCLNT_E_BUFFER_TOO_LARGE). The game instead writes
-        // directly into a FIFO that is drained to the device only as fast as it frees space - the
-        // same free-space-clamped approach the timer-driven resampler uses.
-
-        // arm the bridge once the redirected stream is initialized. frame_bytes is one frame's size
-        // in the game's (== device, via AUTOCONVERTPCM) format.
-        void enable_bridge(int frame_bytes);
-
-        // whether the FIFO bridge is active (a redirect was applied and armed).
-        bool bridge_enabled() const { return this->frame_bytes > 0; }
-
-        // reserve `frames` at the FIFO tail and hand the game a pointer into it to write in place.
-        // must be paired with commit_write, which trims the reservation to the frames written.
-        BYTE *begin_write(UINT32 frames);
-
-        // trim the reservation from begin_write to the `frames` actually written (zeroing if silent).
-        void commit_write(UINT32 frames, bool silent);
-
-        // padding to report to a game that polls GetCurrentPadding while the bridge is active: the
-        // FIFO fill level, capped to the reported buffer size so the game's free-space calculation
-        // (reported_buffer - padding) reflects room in the virtual buffer rather than the device's.
-        UINT32 virtual_padding() const;
-
-        // push as many queued frames as the real device has free, applying `boost`, keeping the rest
-        // for the next call. `real` is the wrapped render client's underlying interface; `client` is
-        // the underlying audio client used to query the device's free space.
-        HRESULT drain(IAudioRenderClient *real, IAudioClient *client,
-                const WAVEFORMATEXTENSIBLE &device_format, float boost);
-
-    private:
-
-        // frames currently queued in the FIFO and not yet handed to the device.
-        UINT32 pending_frames() const;
-
-        // FIFO bridge state (see enable_bridge). fifo holds audio queued for the device in the
-        // game's interleaved frame format; the game writes new frames directly into its tail between
-        // begin_write and commit_write. frame_bytes > 0 doubles as the "bridge armed" flag (see
-        // bridge_enabled). pending_write_offset marks the tail reservation handed to begin_write.
-        int frame_bytes = 0;
-        UINT32 device_buffer_frames = 0;
-        UINT32 reported_frames = 0;
-        int buffers_to_mute = 4;
-        size_t pending_write_offset = 0;
-        std::vector<BYTE> fifo;
-    };
-}
-
+#pragma once
+
+#include <cstdint>
+#include <vector>
+
+#include <windows.h>
+#include <mmreg.h>
+#include <audioclient.h>
+
+struct IAudioRenderClient;
+
+namespace hooks::audio {
+
+    // The -wasapishared option redirects an exclusive WASAPI stream to shared mode, so other apps
+    // can play sound and devices that can't open the exclusive format still work, at the cost of
+    // some latency. Only PCM / float is converted; bitstream (AC-3 / DTS) is left alone.
+    struct SharedRedirect {
+
+        // true once apply() has redirected an exclusive request. gates the buffer clamp; stays false
+        // for a natively-shared stream (it paces itself, so must not be clamped).
+        bool redirected_from_exclusive = false;
+
+        // whether an exclusive-mode request should be redirected, given the -wasapishared option.
+        // only PCM / float is eligible; bitstream (AC-3 / DTS) is left in exclusive mode.
+        static bool wants(AUDCLNT_SHAREMODE share_mode, const WAVEFORMATEX *format);
+
+        // redirect an exclusive request to shared mode. caller must have checked wants() first.
+        void apply(AUDCLNT_SHAREMODE *share_mode, DWORD *stream_flags, REFERENCE_TIME *periodicity);
+
+        // clamp a reported buffer size to one device period. the FIFO bridge below is what prevents
+        // the overflow; this just keeps the game's per-event writes small so the bridge adds minimal
+        // latency. caches the chosen value for virtual_padding. a no-op unless redirected.
+        UINT32 clamp_buffer_size(IAudioClient *real, uint32_t sample_rate, UINT32 device_frames);
+
+        // FIFO bridge: the redirected game writes a whole reported buffer per event paced by its own
+        // callback, not the shared engine clock, so a full-buffer write can intermittently exceed the
+        // double-buffered shared free space (AUDCLNT_E_BUFFER_TOO_LARGE). The game instead writes
+        // directly into a FIFO that is drained to the device only as fast as it frees space - the
+        // same free-space-clamped approach the timer-driven resampler uses.
+
+        // arm the bridge once the redirected stream is initialized. frame_bytes is one frame's size
+        // in the game's (== device, via AUTOCONVERTPCM) format.
+        void enable_bridge(int frame_bytes);
+
+        // whether the FIFO bridge is active (a redirect was applied and armed).
+        bool bridge_enabled() const { return this->frame_bytes > 0; }
+
+        // reserve `frames` at the FIFO tail and hand the game a pointer into it to write in place.
+        // must be paired with commit_write, which trims the reservation to the frames written.
+        BYTE *begin_write(UINT32 frames);
+
+        // trim the reservation from begin_write to the `frames` actually written (zeroing if silent).
+        void commit_write(UINT32 frames, bool silent);
+
+        // padding to report to a game that polls GetCurrentPadding while the bridge is active: the
+        // FIFO fill level, capped to the reported buffer size so the game's free-space calculation
+        // (reported_buffer - padding) reflects room in the virtual buffer rather than the device's.
+        UINT32 virtual_padding() const;
+
+        // push as many queued frames as the real device has free, applying `boost`, keeping the rest
+        // for the next call. `real` is the wrapped render client's underlying interface; `client` is
+        // the underlying audio client used to query the device's free space.
+        HRESULT drain(IAudioRenderClient *real, IAudioClient *client,
+                const WAVEFORMATEXTENSIBLE &device_format, float boost);
+
+    private:
+
+        // frames currently queued in the FIFO and not yet handed to the device.
+        UINT32 pending_frames() const;
+
+        // FIFO bridge state (see enable_bridge). fifo holds audio queued for the device in the
+        // game's interleaved frame format; the game writes new frames directly into its tail between
+        // begin_write and commit_write. frame_bytes > 0 doubles as the "bridge armed" flag (see
+        // bridge_enabled). pending_write_offset marks the tail reservation handed to begin_write.
+        int frame_bytes = 0;
+        UINT32 device_buffer_frames = 0;
+        UINT32 reported_frames = 0;
+        int buffers_to_mute = 4;
+        size_t pending_write_offset = 0;
+        std::vector<BYTE> fifo;
+    };
+}
+
@@ -1,393 +1,393 @@
-#include "xact.h"
-
-#include <atomic>
-#include <string>
-
-#include <windows.h>
-#include <initguid.h>
-#include <mmreg.h>
-#include <objbase.h>
-
-#include "util/deferlog.h"
-#include "util/detour.h"
-#include "util/logging.h"
-#include "util/utils.h"
-
-namespace hooks::audio::xact {
-
-    // XAudio 2.7 is a COM API. Newer Windows SDKs expose a different IXAudio2
-    // layout, so keep this proxy pinned to the legacy ABI used by libxact.
-    struct XAudio2DeviceDetails {
-        WCHAR device_id[256];
-        WCHAR display_name[256];
-        DWORD role;
-        WAVEFORMATEXTENSIBLE output_format;
-    };
-
-    struct XAudio2EffectChain {
-        UINT32 effect_count;
-        const void *effect_descriptors;
-    };
-
-    struct IXAudio2_27 {
-        virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **object) = 0;
-        virtual ULONG STDMETHODCALLTYPE AddRef() = 0;
-        virtual ULONG STDMETHODCALLTYPE Release() = 0;
-        virtual HRESULT STDMETHODCALLTYPE GetDeviceCount(UINT32 *device_count) = 0;
-        virtual HRESULT STDMETHODCALLTYPE GetDeviceDetails(
-            UINT32 device_index,
-            XAudio2DeviceDetails *device_details) = 0;
-        virtual HRESULT STDMETHODCALLTYPE Initialize(UINT32 flags, UINT32 processor) = 0;
-        virtual HRESULT STDMETHODCALLTYPE RegisterForCallbacks(void *callback) = 0;
-        virtual void STDMETHODCALLTYPE UnregisterForCallbacks(void *callback) = 0;
-        virtual HRESULT STDMETHODCALLTYPE CreateSourceVoice(
-            void **source_voice,
-            const WAVEFORMATEX *source_format,
-            UINT32 flags,
-            float max_frequency_ratio,
-            void *callback,
-            const void *send_list,
-            const XAudio2EffectChain *effect_chain) = 0;
-        virtual HRESULT STDMETHODCALLTYPE CreateSubmixVoice(
-            void **submix_voice,
-            UINT32 input_channels,
-            UINT32 input_sample_rate,
-            UINT32 flags,
-            UINT32 processing_stage,
-            const void *send_list,
-            const XAudio2EffectChain *effect_chain) = 0;
-        virtual HRESULT STDMETHODCALLTYPE CreateMasteringVoice(
-            void **mastering_voice,
-            UINT32 input_channels,
-            UINT32 input_sample_rate,
-            UINT32 flags,
-            UINT32 device_index,
-            const XAudio2EffectChain *effect_chain) = 0;
-        virtual HRESULT STDMETHODCALLTYPE StartEngine() = 0;
-        virtual void STDMETHODCALLTYPE StopEngine() = 0;
-        virtual HRESULT STDMETHODCALLTYPE CommitChanges(UINT32 operation_set) = 0;
-        virtual void STDMETHODCALLTYPE GetPerformanceData(void *performance_data) = 0;
-        virtual void STDMETHODCALLTYPE SetDebugConfiguration(
-            const void *debug_configuration,
-            void *reserved) = 0;
-    };
-
-    // XAudio2 2.7 COM class and interface.
-    DEFINE_GUID(CLSID_XAudio2_7_LEGACY,
-        0x5a508685, 0xa254, 0x4fba,
-        0x9b, 0x82, 0x9a, 0x24, 0xb0, 0x03, 0x06, 0xaf);
-    DEFINE_GUID(IID_IXAudio2_7_LEGACY,
-        0x8bcf1f58, 0x9fe7, 0x4583,
-        0x8a, 0xc6, 0xe2, 0xad, 0xc4, 0x65, 0xc8, 0xbb);
-
-    static decltype(CoCreateInstance) *CoCreateInstance_orig = nullptr;
-
-    using CreateFX_t = HRESULT (WINAPI *)(REFCLSID, IUnknown **, const void *, UINT32);
-    static CreateFX_t CreateFX_orig = nullptr;
-
-    static std::string describe_wave_format(const WAVEFORMATEX *format) {
-        if (format == nullptr) {
-            return "null";
-        }
-
-        DWORD channel_mask = 0;
-        if (format->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
-            format->cbSize >= sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX)) {
-            channel_mask = reinterpret_cast<const WAVEFORMATEXTENSIBLE *>(format)->dwChannelMask;
-        }
-
-        return fmt::format(
-            "tag=0x{:04x}, channels={}, rate={} Hz, bits={}, valid_block={} B, avg={} B/s, mask=0x{:08x}",
-            format->wFormatTag,
-            format->nChannels,
-            format->nSamplesPerSec,
-            format->wBitsPerSample,
-            format->nBlockAlign,
-            format->nAvgBytesPerSec,
-            channel_mask);
-    }
-
-    template <size_t Size>
-    static std::string narrow_fixed(const WCHAR (&value)[Size]) {
-        size_t length = 0;
-        while (length < Size && value[length] != L'\0') {
-            length++;
-        }
-        return ws2s(std::wstring(value, length));
-    }
-
-    class WrappedXAudio2 final : public IXAudio2_27 {
-    public:
-        explicit WrappedXAudio2(IXAudio2_27 *real) : real(real) {
-            log_info("audio::xaudio2", "wrapping IXAudio2 2.7 engine {}", static_cast<void *>(real));
-        }
-
-        HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **object) override {
-            if (object == nullptr) {
-                return E_POINTER;
-            }
-            if (IsEqualIID(riid, IID_IUnknown) || IsEqualIID(riid, IID_IXAudio2_7_LEGACY)) {
-                *object = this;
-                AddRef();
-                log_info("audio::xaudio2", "IXAudio2::QueryInterface({}) -> proxy", guid2s(riid));
-                return S_OK;
-            }
-
-            const auto result = real->QueryInterface(riid, object);
-            log_info(
-                "audio::xaudio2",
-                "IXAudio2::QueryInterface({}) -> {}, object={}",
-                guid2s(riid),
-                FMT_HRESULT(result),
-                object != nullptr ? *object : nullptr);
-            return result;
-        }
-
-        ULONG STDMETHODCALLTYPE AddRef() override {
-            return ++ref_count;
-        }
-
-        ULONG STDMETHODCALLTYPE Release() override {
-            const auto remaining = --ref_count;
-            if (remaining == 0) {
-                log_info("audio::xaudio2", "destroying IXAudio2 2.7 proxy");
-                real->Release();
-                delete this;
-            }
-            return remaining;
-        }
-
-        HRESULT STDMETHODCALLTYPE GetDeviceCount(UINT32 *device_count) override {
-            const auto result = real->GetDeviceCount(device_count);
-            log_info(
-                "audio::xaudio2",
-                "IXAudio2::GetDeviceCount -> {}, count={}",
-                FMT_HRESULT(result),
-                SUCCEEDED(result) && device_count != nullptr ? *device_count : 0);
-            return result;
-        }
-
-        HRESULT STDMETHODCALLTYPE GetDeviceDetails(
-            UINT32 device_index,
-            XAudio2DeviceDetails *device_details) override {
-            const auto result = real->GetDeviceDetails(device_index, device_details);
-            if (SUCCEEDED(result) && device_details != nullptr) {
-                const auto device_name = narrow_fixed(device_details->display_name);
-                if (!device_details_logged.exchange(true, std::memory_order_relaxed)) {
-                    log_info(
-                        "audio::xaudio2",
-                        "IXAudio2::GetDeviceDetails({}) -> {}, id='{}', name='{}', role=0x{:08x}, {}",
-                        device_index,
-                        FMT_HRESULT(result),
-                        narrow_fixed(device_details->device_id),
-                        device_name,
-                        device_details->role,
-                        describe_wave_format(&device_details->output_format.Format));
-                }
-                const auto channels = device_details->output_format.Format.nChannels;
-                if (channels != 2 && channels != 6 &&
-                    !channel_warning_logged.exchange(true, std::memory_order_relaxed)) {
-                    log_warning(
-                        "audio::xaudio2",
-                        "output device '{}' has {} channels; Nostalgia requires stereo or 5.1 output",
-                        device_name,
-                        channels);
-                    deferredlogs::defer_error_messages({
-                        "unsupported audio output channel count detected!",
-                        fmt::format("    device: {}", device_name),
-                        fmt::format("    detected {} channels; Nostalgia requires 2 (stereo) or 6 (5.1)", channels),
-                        "      * configure the default Windows playback device for stereo or 5.1 output",
-                        "      * disable 7.1 surround sound or spatial audio for this device",
-                    });
-                }
-            } else {
-                log_warning(
-                    "audio::xaudio2",
-                    "IXAudio2::GetDeviceDetails({}) -> {}",
-                    device_index,
-                    FMT_HRESULT(result));
-            }
-            return result;
-        }
-
-        HRESULT STDMETHODCALLTYPE Initialize(UINT32 flags, UINT32 processor) override {
-            const auto result = real->Initialize(flags, processor);
-            log_info(
-                "audio::xaudio2",
-                "IXAudio2::Initialize(flags=0x{:08x}, processor=0x{:08x}) -> {}",
-                flags,
-                processor,
-                FMT_HRESULT(result));
-            return result;
-        }
-
-        HRESULT STDMETHODCALLTYPE RegisterForCallbacks(void *callback) override {
-            const auto result = real->RegisterForCallbacks(callback);
-            log_info(
-                "audio::xaudio2",
-                "IXAudio2::RegisterForCallbacks({}) -> {}",
-                callback,
-                FMT_HRESULT(result));
-            return result;
-        }
-
-        void STDMETHODCALLTYPE UnregisterForCallbacks(void *callback) override {
-            log_info("audio::xaudio2", "IXAudio2::UnregisterForCallbacks({})", callback);
-            real->UnregisterForCallbacks(callback);
-        }
-
-        HRESULT STDMETHODCALLTYPE CreateSourceVoice(
-            void **source_voice,
-            const WAVEFORMATEX *source_format,
-            UINT32 flags,
-            float max_frequency_ratio,
-            void *callback,
-            const void *send_list,
-            const XAudio2EffectChain *effect_chain) override {
-            return real->CreateSourceVoice(
-                source_voice,
-                source_format,
-                flags,
-                max_frequency_ratio,
-                callback,
-                send_list,
-                effect_chain);
-        }
-
-        HRESULT STDMETHODCALLTYPE CreateSubmixVoice(
-            void **submix_voice,
-            UINT32 input_channels,
-            UINT32 input_sample_rate,
-            UINT32 flags,
-            UINT32 processing_stage,
-            const void *send_list,
-            const XAudio2EffectChain *effect_chain) override {
-            return real->CreateSubmixVoice(
-                submix_voice,
-                input_channels,
-                input_sample_rate,
-                flags,
-                processing_stage,
-                send_list,
-                effect_chain);
-        }
-
-        HRESULT STDMETHODCALLTYPE CreateMasteringVoice(
-            void **mastering_voice,
-            UINT32 input_channels,
-            UINT32 input_sample_rate,
-            UINT32 flags,
-            UINT32 device_index,
-            const XAudio2EffectChain *effect_chain) override {
-            const auto result = real->CreateMasteringVoice(
-                mastering_voice,
-                input_channels,
-                input_sample_rate,
-                flags,
-                device_index,
-                effect_chain);
-            log_info(
-                "audio::xaudio2",
-                "IXAudio2::CreateMasteringVoice(channels={}, rate={} Hz, flags=0x{:08x}, device={}, effects={}) -> {}, voice={}",
-                input_channels,
-                input_sample_rate,
-                flags,
-                device_index,
-                effect_chain != nullptr ? effect_chain->effect_count : 0,
-                FMT_HRESULT(result),
-                mastering_voice != nullptr ? *mastering_voice : nullptr);
-            return result;
-        }
-
-        HRESULT STDMETHODCALLTYPE StartEngine() override {
-            const auto result = real->StartEngine();
-            log_info("audio::xaudio2", "IXAudio2::StartEngine -> {}", FMT_HRESULT(result));
-            return result;
-        }
-
-        void STDMETHODCALLTYPE StopEngine() override {
-            log_info("audio::xaudio2", "IXAudio2::StopEngine");
-            real->StopEngine();
-        }
-
-        HRESULT STDMETHODCALLTYPE CommitChanges(UINT32 operation_set) override {
-            return real->CommitChanges(operation_set);
-        }
-
-        void STDMETHODCALLTYPE GetPerformanceData(void *performance_data) override {
-            real->GetPerformanceData(performance_data);
-        }
-
-        void STDMETHODCALLTYPE SetDebugConfiguration(
-            const void *debug_configuration,
-            void *reserved) override {
-            log_info("audio::xaudio2", "IXAudio2::SetDebugConfiguration({})", debug_configuration);
-            real->SetDebugConfiguration(debug_configuration, reserved);
-        }
-
-    private:
-        std::atomic<ULONG> ref_count = 1;
-        std::atomic_bool device_details_logged = false;
-        std::atomic_bool channel_warning_logged = false;
-        IXAudio2_27 *real;
-    };
-
-    static HRESULT STDAPICALLTYPE CoCreateInstance_hook(
-        REFCLSID clsid,
-        LPUNKNOWN outer,
-        DWORD class_context,
-        REFIID iid,
-        LPVOID *object) {
-        const auto result = CoCreateInstance_orig(clsid, outer, class_context, iid, object);
-        log_info(
-            "audio::xact",
-            "CoCreateInstance(clsid={}, iid={}, context=0x{:08x}) -> {}, object={}",
-            guid2s(clsid),
-            guid2s(iid),
-            class_context,
-            FMT_HRESULT(result),
-            object != nullptr ? *object : nullptr);
-
-        if (SUCCEEDED(result) && object != nullptr && *object != nullptr &&
-            IsEqualCLSID(clsid, CLSID_XAudio2_7_LEGACY) &&
-            IsEqualIID(iid, IID_IXAudio2_7_LEGACY)) {
-            *object = static_cast<IXAudio2_27 *>(
-                new WrappedXAudio2(static_cast<IXAudio2_27 *>(*object)));
-        }
-        return result;
-    }
-
-    static HRESULT WINAPI CreateFX_hook(
-        REFCLSID clsid,
-        IUnknown **effect,
-        const void *init_data,
-        UINT32 init_data_size) {
-        const auto result = CreateFX_orig(clsid, effect, init_data, init_data_size);
-        log_info(
-            "audio::xapofx",
-            "CreateFX(clsid={}, init_data={}, size={}) -> {}, effect={}",
-            guid2s(clsid),
-            init_data,
-            init_data_size,
-            FMT_HRESULT(result),
-            effect != nullptr ? static_cast<void *>(*effect) : nullptr);
-        return result;
-    }
-
-    void init() {
-        const auto libxact = GetModuleHandleW(L"libxact.dll");
-        if (libxact == nullptr) {
-            return;
-        }
-
-        CoCreateInstance_orig = detour::iat_try(
-            "CoCreateInstance", CoCreateInstance_hook, libxact);
-        CreateFX_orig = detour::iat_try("CreateFX", CreateFX_hook, libxact);
-
-        log_info(
-            "audio::xact",
-            "libxact hooks installed: CoCreateInstance={}, CreateFX={}",
-            CoCreateInstance_orig != nullptr,
-            CreateFX_orig != nullptr);
-    }
+#include "xact.h"
+
+#include <atomic>
+#include <string>
+
+#include <windows.h>
+#include <initguid.h>
+#include <mmreg.h>
+#include <objbase.h>
+
+#include "util/deferlog.h"
+#include "util/detour.h"
+#include "util/logging.h"
+#include "util/utils.h"
+
+namespace hooks::audio::xact {
+
+    // XAudio 2.7 is a COM API. Newer Windows SDKs expose a different IXAudio2
+    // layout, so keep this proxy pinned to the legacy ABI used by libxact.
+    struct XAudio2DeviceDetails {
+        WCHAR device_id[256];
+        WCHAR display_name[256];
+        DWORD role;
+        WAVEFORMATEXTENSIBLE output_format;
+    };
+
+    struct XAudio2EffectChain {
+        UINT32 effect_count;
+        const void *effect_descriptors;
+    };
+
+    struct IXAudio2_27 {
+        virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **object) = 0;
+        virtual ULONG STDMETHODCALLTYPE AddRef() = 0;
+        virtual ULONG STDMETHODCALLTYPE Release() = 0;
+        virtual HRESULT STDMETHODCALLTYPE GetDeviceCount(UINT32 *device_count) = 0;
+        virtual HRESULT STDMETHODCALLTYPE GetDeviceDetails(
+            UINT32 device_index,
+            XAudio2DeviceDetails *device_details) = 0;
+        virtual HRESULT STDMETHODCALLTYPE Initialize(UINT32 flags, UINT32 processor) = 0;
+        virtual HRESULT STDMETHODCALLTYPE RegisterForCallbacks(void *callback) = 0;
+        virtual void STDMETHODCALLTYPE UnregisterForCallbacks(void *callback) = 0;
+        virtual HRESULT STDMETHODCALLTYPE CreateSourceVoice(
+            void **source_voice,
+            const WAVEFORMATEX *source_format,
+            UINT32 flags,
+            float max_frequency_ratio,
+            void *callback,
+            const void *send_list,
+            const XAudio2EffectChain *effect_chain) = 0;
+        virtual HRESULT STDMETHODCALLTYPE CreateSubmixVoice(
+            void **submix_voice,
+            UINT32 input_channels,
+            UINT32 input_sample_rate,
+            UINT32 flags,
+            UINT32 processing_stage,
+            const void *send_list,
+            const XAudio2EffectChain *effect_chain) = 0;
+        virtual HRESULT STDMETHODCALLTYPE CreateMasteringVoice(
+            void **mastering_voice,
+            UINT32 input_channels,
+            UINT32 input_sample_rate,
+            UINT32 flags,
+            UINT32 device_index,
+            const XAudio2EffectChain *effect_chain) = 0;
+        virtual HRESULT STDMETHODCALLTYPE StartEngine() = 0;
+        virtual void STDMETHODCALLTYPE StopEngine() = 0;
+        virtual HRESULT STDMETHODCALLTYPE CommitChanges(UINT32 operation_set) = 0;
+        virtual void STDMETHODCALLTYPE GetPerformanceData(void *performance_data) = 0;
+        virtual void STDMETHODCALLTYPE SetDebugConfiguration(
+            const void *debug_configuration,
+            void *reserved) = 0;
+    };
+
+    // XAudio2 2.7 COM class and interface.
+    DEFINE_GUID(CLSID_XAudio2_7_LEGACY,
+        0x5a508685, 0xa254, 0x4fba,
+        0x9b, 0x82, 0x9a, 0x24, 0xb0, 0x03, 0x06, 0xaf);
+    DEFINE_GUID(IID_IXAudio2_7_LEGACY,
+        0x8bcf1f58, 0x9fe7, 0x4583,
+        0x8a, 0xc6, 0xe2, 0xad, 0xc4, 0x65, 0xc8, 0xbb);
+
+    static decltype(CoCreateInstance) *CoCreateInstance_orig = nullptr;
+
+    using CreateFX_t = HRESULT (WINAPI *)(REFCLSID, IUnknown **, const void *, UINT32);
+    static CreateFX_t CreateFX_orig = nullptr;
+
+    static std::string describe_wave_format(const WAVEFORMATEX *format) {
+        if (format == nullptr) {
+            return "null";
+        }
+
+        DWORD channel_mask = 0;
+        if (format->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
+            format->cbSize >= sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX)) {
+            channel_mask = reinterpret_cast<const WAVEFORMATEXTENSIBLE *>(format)->dwChannelMask;
+        }
+
+        return fmt::format(
+            "tag=0x{:04x}, channels={}, rate={} Hz, bits={}, valid_block={} B, avg={} B/s, mask=0x{:08x}",
+            format->wFormatTag,
+            format->nChannels,
+            format->nSamplesPerSec,
+            format->wBitsPerSample,
+            format->nBlockAlign,
+            format->nAvgBytesPerSec,
+            channel_mask);
+    }
+
+    template <size_t Size>
+    static std::string narrow_fixed(const WCHAR (&value)[Size]) {
+        size_t length = 0;
+        while (length < Size && value[length] != L'\0') {
+            length++;
+        }
+        return ws2s(std::wstring(value, length));
+    }
+
+    class WrappedXAudio2 final : public IXAudio2_27 {
+    public:
+        explicit WrappedXAudio2(IXAudio2_27 *real) : real(real) {
+            log_info("audio::xaudio2", "wrapping IXAudio2 2.7 engine {}", static_cast<void *>(real));
+        }
+
+        HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **object) override {
+            if (object == nullptr) {
+                return E_POINTER;
+            }
+            if (IsEqualIID(riid, IID_IUnknown) || IsEqualIID(riid, IID_IXAudio2_7_LEGACY)) {
+                *object = this;
+                AddRef();
+                log_info("audio::xaudio2", "IXAudio2::QueryInterface({}) -> proxy", guid2s(riid));
+                return S_OK;
+            }
+
+            const auto result = real->QueryInterface(riid, object);
+            log_info(
+                "audio::xaudio2",
+                "IXAudio2::QueryInterface({}) -> {}, object={}",
+                guid2s(riid),
+                FMT_HRESULT(result),
+                object != nullptr ? *object : nullptr);
+            return result;
+        }
+
+        ULONG STDMETHODCALLTYPE AddRef() override {
+            return ++ref_count;
+        }
+
+        ULONG STDMETHODCALLTYPE Release() override {
+            const auto remaining = --ref_count;
+            if (remaining == 0) {
+                log_info("audio::xaudio2", "destroying IXAudio2 2.7 proxy");
+                real->Release();
+                delete this;
+            }
+            return remaining;
+        }
+
+        HRESULT STDMETHODCALLTYPE GetDeviceCount(UINT32 *device_count) override {
+            const auto result = real->GetDeviceCount(device_count);
+            log_info(
+                "audio::xaudio2",
+                "IXAudio2::GetDeviceCount -> {}, count={}",
+                FMT_HRESULT(result),
+                SUCCEEDED(result) && device_count != nullptr ? *device_count : 0);
+            return result;
+        }
+
+        HRESULT STDMETHODCALLTYPE GetDeviceDetails(
+            UINT32 device_index,
+            XAudio2DeviceDetails *device_details) override {
+            const auto result = real->GetDeviceDetails(device_index, device_details);
+            if (SUCCEEDED(result) && device_details != nullptr) {
+                const auto device_name = narrow_fixed(device_details->display_name);
+                if (!device_details_logged.exchange(true, std::memory_order_relaxed)) {
+                    log_info(
+                        "audio::xaudio2",
+                        "IXAudio2::GetDeviceDetails({}) -> {}, id='{}', name='{}', role=0x{:08x}, {}",
+                        device_index,
+                        FMT_HRESULT(result),
+                        narrow_fixed(device_details->device_id),
+                        device_name,
+                        device_details->role,
+                        describe_wave_format(&device_details->output_format.Format));
+                }
+                const auto channels = device_details->output_format.Format.nChannels;
+                if (channels != 2 && channels != 6 &&
+                    !channel_warning_logged.exchange(true, std::memory_order_relaxed)) {
+                    log_warning(
+                        "audio::xaudio2",
+                        "output device '{}' has {} channels; Nostalgia requires stereo or 5.1 output",
+                        device_name,
+                        channels);
+                    deferredlogs::defer_error_messages({
+                        "unsupported audio output channel count detected!",
+                        fmt::format("    device: {}", device_name),
+                        fmt::format("    detected {} channels; Nostalgia requires 2 (stereo) or 6 (5.1)", channels),
+                        "      * configure the default Windows playback device for stereo or 5.1 output",
+                        "      * disable 7.1 surround sound or spatial audio for this device",
+                    });
+                }
+            } else {
+                log_warning(
+                    "audio::xaudio2",
+                    "IXAudio2::GetDeviceDetails({}) -> {}",
+                    device_index,
+                    FMT_HRESULT(result));
+            }
+            return result;
+        }
+
+        HRESULT STDMETHODCALLTYPE Initialize(UINT32 flags, UINT32 processor) override {
+            const auto result = real->Initialize(flags, processor);
+            log_info(
+                "audio::xaudio2",
+                "IXAudio2::Initialize(flags=0x{:08x}, processor=0x{:08x}) -> {}",
+                flags,
+                processor,
+                FMT_HRESULT(result));
+            return result;
+        }
+
+        HRESULT STDMETHODCALLTYPE RegisterForCallbacks(void *callback) override {
+            const auto result = real->RegisterForCallbacks(callback);
+            log_info(
+                "audio::xaudio2",
+                "IXAudio2::RegisterForCallbacks({}) -> {}",
+                callback,
+                FMT_HRESULT(result));
+            return result;
+        }
+
+        void STDMETHODCALLTYPE UnregisterForCallbacks(void *callback) override {
+            log_info("audio::xaudio2", "IXAudio2::UnregisterForCallbacks({})", callback);
+            real->UnregisterForCallbacks(callback);
+        }
+
+        HRESULT STDMETHODCALLTYPE CreateSourceVoice(
+            void **source_voice,
+            const WAVEFORMATEX *source_format,
+            UINT32 flags,
+            float max_frequency_ratio,
+            void *callback,
+            const void *send_list,
+            const XAudio2EffectChain *effect_chain) override {
+            return real->CreateSourceVoice(
+                source_voice,
+                source_format,
+                flags,
+                max_frequency_ratio,
+                callback,
+                send_list,
+                effect_chain);
+        }
+
+        HRESULT STDMETHODCALLTYPE CreateSubmixVoice(
+            void **submix_voice,
+            UINT32 input_channels,
+            UINT32 input_sample_rate,
+            UINT32 flags,
+            UINT32 processing_stage,
+            const void *send_list,
+            const XAudio2EffectChain *effect_chain) override {
+            return real->CreateSubmixVoice(
+                submix_voice,
+                input_channels,
+                input_sample_rate,
+                flags,
+                processing_stage,
+                send_list,
+                effect_chain);
+        }
+
+        HRESULT STDMETHODCALLTYPE CreateMasteringVoice(
+            void **mastering_voice,
+            UINT32 input_channels,
+            UINT32 input_sample_rate,
+            UINT32 flags,
+            UINT32 device_index,
+            const XAudio2EffectChain *effect_chain) override {
+            const auto result = real->CreateMasteringVoice(
+                mastering_voice,
+                input_channels,
+                input_sample_rate,
+                flags,
+                device_index,
+                effect_chain);
+            log_info(
+                "audio::xaudio2",
+                "IXAudio2::CreateMasteringVoice(channels={}, rate={} Hz, flags=0x{:08x}, device={}, effects={}) -> {}, voice={}",
+                input_channels,
+                input_sample_rate,
+                flags,
+                device_index,
+                effect_chain != nullptr ? effect_chain->effect_count : 0,
+                FMT_HRESULT(result),
+                mastering_voice != nullptr ? *mastering_voice : nullptr);
+            return result;
+        }
+
+        HRESULT STDMETHODCALLTYPE StartEngine() override {
+            const auto result = real->StartEngine();
+            log_info("audio::xaudio2", "IXAudio2::StartEngine -> {}", FMT_HRESULT(result));
+            return result;
+        }
+
+        void STDMETHODCALLTYPE StopEngine() override {
+            log_info("audio::xaudio2", "IXAudio2::StopEngine");
+            real->StopEngine();
+        }
+
+        HRESULT STDMETHODCALLTYPE CommitChanges(UINT32 operation_set) override {
+            return real->CommitChanges(operation_set);
+        }
+
+        void STDMETHODCALLTYPE GetPerformanceData(void *performance_data) override {
+            real->GetPerformanceData(performance_data);
+        }
+
+        void STDMETHODCALLTYPE SetDebugConfiguration(
+            const void *debug_configuration,
+            void *reserved) override {
+            log_info("audio::xaudio2", "IXAudio2::SetDebugConfiguration({})", debug_configuration);
+            real->SetDebugConfiguration(debug_configuration, reserved);
+        }
+
+    private:
+        std::atomic<ULONG> ref_count = 1;
+        std::atomic_bool device_details_logged = false;
+        std::atomic_bool channel_warning_logged = false;
+        IXAudio2_27 *real;
+    };
+
+    static HRESULT STDAPICALLTYPE CoCreateInstance_hook(
+        REFCLSID clsid,
+        LPUNKNOWN outer,
+        DWORD class_context,
+        REFIID iid,
+        LPVOID *object) {
+        const auto result = CoCreateInstance_orig(clsid, outer, class_context, iid, object);
+        log_info(
+            "audio::xact",
+            "CoCreateInstance(clsid={}, iid={}, context=0x{:08x}) -> {}, object={}",
+            guid2s(clsid),
+            guid2s(iid),
+            class_context,
+            FMT_HRESULT(result),
+            object != nullptr ? *object : nullptr);
+
+        if (SUCCEEDED(result) && object != nullptr && *object != nullptr &&
+            IsEqualCLSID(clsid, CLSID_XAudio2_7_LEGACY) &&
+            IsEqualIID(iid, IID_IXAudio2_7_LEGACY)) {
+            *object = static_cast<IXAudio2_27 *>(
+                new WrappedXAudio2(static_cast<IXAudio2_27 *>(*object)));
+        }
+        return result;
+    }
+
+    static HRESULT WINAPI CreateFX_hook(
+        REFCLSID clsid,
+        IUnknown **effect,
+        const void *init_data,
+        UINT32 init_data_size) {
+        const auto result = CreateFX_orig(clsid, effect, init_data, init_data_size);
+        log_info(
+            "audio::xapofx",
+            "CreateFX(clsid={}, init_data={}, size={}) -> {}, effect={}",
+            guid2s(clsid),
+            init_data,
+            init_data_size,
+            FMT_HRESULT(result),
+            effect != nullptr ? static_cast<void *>(*effect) : nullptr);
+        return result;
+    }
+
+    void init() {
+        const auto libxact = GetModuleHandleW(L"libxact.dll");
+        if (libxact == nullptr) {
+            return;
+        }
+
+        CoCreateInstance_orig = detour::iat_try(
+            "CoCreateInstance", CoCreateInstance_hook, libxact);
+        CreateFX_orig = detour::iat_try("CreateFX", CreateFX_hook, libxact);
+
+        log_info(
+            "audio::xact",
+            "libxact hooks installed: CoCreateInstance={}, CreateFX={}",
+            CoCreateInstance_orig != nullptr,
+            CreateFX_orig != nullptr);
+    }
 }
@@ -1,5 +1,5 @@
-#pragma once
-
-namespace hooks::audio::xact {
-    void init();
+#pragma once
+
+namespace hooks::audio::xact {
+    void init();
 }
@@ -574,7 +574,7 @@ void devicehook_init(HMODULE module) {
    STORE(EscapeCommFunction_orig, detour::iat_try("EscapeCommFunction", EscapeCommFunction_hook, module));
    STORE(GetCommState_orig, detour::iat_try("GetCommState", GetCommState_hook, module));
    STORE(GetFileSize_orig, detour::iat_try("GetFileSize", GetFileSize_hook, module));
-    STORE(GetFileSizeEx_orig, detour::iat_try("GetFileSize", GetFileSizeEx_hook, module));
+    STORE(GetFileSizeEx_orig, detour::iat_try("GetFileSizeEx", GetFileSizeEx_hook, module));
    STORE(GetFileInformationByHandle_orig, detour::iat_try(
                "GetFileInformationByHandle", GetFileInformationByHandle_hook, module));
    STORE(PurgeComm_orig, detour::iat_try("PurgeComm", PurgeComm_hook, module));
@@ -1,304 +1,304 @@
-// dx11 / dxgi hook entrypoint. trampolines d3d11.dll / dxgi.dll exports
-// the moment those DLLs appear (LDR notification + poll-thread fallback),
-// then drives proactive vtable capture so we don't lose the race against
-// the execexe loader. per-vtable hook implementations live in the sibling
-// files (d3d11_swapchain / d3d11_factory / d3d11_vtable_capture /
-// d3d11_screenshot).
-//
-// note: never LoadLibrary d3d11/dxgi -- execexe pre-loads them itself and
-// fails (error 0xa) if they're already in the loader's module list.
-//
-// 64-bit only.
-
-#include "d3d11_backend.h"
-
-#ifndef SPICE_D3D11
-
-void graphics_d3d11_init() {}
-void graphics_d3d11_shutdown() {}
-
-#else
-
-#include <atomic>
-#include <thread>
-#include <chrono>
-#include <cwchar>
-#include <mutex>
-
-#include <windows.h>
-#include <d3d11.h>
-#include <dxgi.h>
-#include <dxgi1_2.h>
-
-#include "d3d11_internal.h"
-#include "util/nt_loader.h"
-
-namespace {
-
-using D3D11CreateDeviceAndSwapChain_t = HRESULT(WINAPI *)(
-    IDXGIAdapter *, D3D_DRIVER_TYPE, HMODULE, UINT,
-    const D3D_FEATURE_LEVEL *, UINT, UINT,
-    const DXGI_SWAP_CHAIN_DESC *, IDXGISwapChain **,
-    ID3D11Device **, D3D_FEATURE_LEVEL *, ID3D11DeviceContext **);
-using CreateDXGIFactory_t = HRESULT(WINAPI *)(REFIID, void **);
-using CreateDXGIFactory1_t = HRESULT(WINAPI *)(REFIID, void **);
-using CreateDXGIFactory2_t = HRESULT(WINAPI *)(UINT, REFIID, void **);
-
-D3D11CreateDeviceAndSwapChain_t D3D11CreateDeviceAndSwapChain_orig = nullptr;
-CreateDXGIFactory_t CreateDXGIFactory_orig = nullptr;
-CreateDXGIFactory1_t CreateDXGIFactory1_orig = nullptr;
-CreateDXGIFactory2_t CreateDXGIFactory2_orig = nullptr;
-
-std::atomic<bool> g_d3d11_exports_hooked { false };
-std::atomic<bool> g_dxgi_exports_hooked { false };
-
-// ----------------------------------------------------------------------
-// top-level export hooks
-
-HRESULT WINAPI D3D11CreateDeviceAndSwapChain_hook(
-        IDXGIAdapter *pAdapter, D3D_DRIVER_TYPE DriverType, HMODULE Software, UINT Flags,
-        const D3D_FEATURE_LEVEL *pFeatureLevels, UINT FeatureLevels, UINT SDKVersion,
-        const DXGI_SWAP_CHAIN_DESC *pSwapChainDesc, IDXGISwapChain **ppSwapChain,
-        ID3D11Device **ppDevice, D3D_FEATURE_LEVEL *pFeatureLevel,
-        ID3D11DeviceContext **ppImmediateContext)
-{
-    HRESULT res = D3D11CreateDeviceAndSwapChain_orig(
-        pAdapter, DriverType, Software, Flags,
-        pFeatureLevels, FeatureLevels, SDKVersion,
-        pSwapChainDesc, ppSwapChain, ppDevice, pFeatureLevel, ppImmediateContext);
-    if (SUCCEEDED(res) && ppSwapChain && *ppSwapChain) {
-        if (pSwapChainDesc) {
-            d3d11_hooks::note_main_hwnd(pSwapChainDesc->OutputWindow);
-        }
-        d3d11_hooks::install_swapchain_hooks(*ppSwapChain);
-    }
-    return res;
-}
-
-#define DEFINE_FACTORY_HOOK(NAME, SIG_PARAMS, ORIG_ARGS)                       \
-    HRESULT WINAPI NAME##_hook SIG_PARAMS {                                    \
-        HRESULT res = NAME##_orig ORIG_ARGS;                                   \
-        if (SUCCEEDED(res) && ppFactory && *ppFactory) {                       \
-            d3d11_hooks::install_factory_hooks(                                \
-                reinterpret_cast<IUnknown *>(*ppFactory));                     \
-        }                                                                      \
-        return res;                                                            \
-    }
-
-DEFINE_FACTORY_HOOK(CreateDXGIFactory,
-    (REFIID riid, void **ppFactory),
-    (riid, ppFactory))
-DEFINE_FACTORY_HOOK(CreateDXGIFactory1,
-    (REFIID riid, void **ppFactory),
-    (riid, ppFactory))
-DEFINE_FACTORY_HOOK(CreateDXGIFactory2,
-    (UINT Flags, REFIID riid, void **ppFactory),
-    (Flags, riid, ppFactory))
-
-#undef DEFINE_FACTORY_HOOK
-
-// ----------------------------------------------------------------------
-// export trampoline plumbing
-
-// serializes trampoline_export() so the LDR notification callback and the
-// poll thread don't race each other into MinHook against the same target.
-std::mutex g_export_mutex;
-
-bool trampoline_export(const char *dll, const char *name, void *hook, void **orig) {
-    std::lock_guard<std::mutex> lock(g_export_mutex);
-    if (*orig) {
-        return true;
-    }
-    HMODULE mod = GetModuleHandleA(dll);
-    if (!mod) {
-        return false;
-    }
-    void *addr = reinterpret_cast<void *>(GetProcAddress(mod, name));
-    if (!addr) {
-        return false;
-    }
-    *orig = addr; // trampoline_try reads *orig before overwriting it.
-    if (!detour::trampoline_try(addr, hook, orig)) {
-        *orig = nullptr;
-        return false;
-    }
-    log_info("graphics::d3d11", "trampolined {}!{}", dll, name);
-    return true;
-}
-
-void try_install_d3d11_exports() {
-    if (g_d3d11_exports_hooked) {
-        return;
-    }
-    if (trampoline_export("d3d11.dll", "D3D11CreateDeviceAndSwapChain",
-            (void *) D3D11CreateDeviceAndSwapChain_hook,
-            (void **) &D3D11CreateDeviceAndSwapChain_orig)) {
-        g_d3d11_exports_hooked = true;
-    }
-}
-
-void try_install_dxgi_exports() {
-    if (g_dxgi_exports_hooked) {
-        return;
-    }
-    struct entry { const char *name; void *hook; void **orig; };
-    const entry entries[] = {
-        { "CreateDXGIFactory", (void *) CreateDXGIFactory_hook,
-          (void **) &CreateDXGIFactory_orig },
-        { "CreateDXGIFactory1", (void *) CreateDXGIFactory1_hook,
-          (void **) &CreateDXGIFactory1_orig },
-        { "CreateDXGIFactory2", (void *) CreateDXGIFactory2_hook,
-          (void **) &CreateDXGIFactory2_orig },
-    };
-    bool any = false;
-    for (auto &e : entries) {
-        any |= trampoline_export("dxgi.dll", e.name, e.hook, e.orig);
-    }
-    if (any) {
-        g_dxgi_exports_hooked = true;
-    }
-}
-
-void try_capture_if_ready() {
-    if (g_d3d11_exports_hooked && g_dxgi_exports_hooked) {
-        d3d11_hooks::try_capture_vtables();
-    }
-}
-
-// ----------------------------------------------------------------------
-// LDR notification + polling fallback
-
-bool dll_name_ends_with(PCUNICODE_STRING name, const wchar_t *suffix) {
-    if (!name || !name->Buffer) {
-        return false;
-    }
-    const size_t n = name->Length / sizeof(WCHAR);
-    const size_t s = wcslen(suffix);
-    return n >= s && _wcsnicmp(name->Buffer + n - s, suffix, s) == 0;
-}
-
-VOID CALLBACK ldr_dll_notification(
-        ULONG reason, PCLDR_DLL_NOTIFICATION_DATA data, PVOID /*context*/)
-{
-    if (reason != LDR_DLL_NOTIFICATION_REASON_LOADED || !data) {
-        return;
-    }
-    if (dll_name_ends_with(data->Loaded.BaseDllName, L"d3d11.dll")) {
-        try_install_d3d11_exports();
-    } else if (dll_name_ends_with(data->Loaded.BaseDllName, L"dxgi.dll")) {
-        try_install_dxgi_exports();
-    }
-}
-
-// execexe maps d3d11/dxgi via a path that bypasses LdrLoadDll, so the
-// notification above never fires for those DLLs and we have to poll.
-std::atomic<bool> g_stop { false };
-std::thread g_poll_thread;
-std::mutex g_init_mutex;
-PVOID g_ldr_cookie = nullptr;
-
-void poll_thread() {
-    using namespace std::chrono_literals;
-    for (int32_t i = 0; i < 120 && !g_stop.load(); ++i) {
-        try_install_d3d11_exports();
-        try_install_dxgi_exports();
-        if (g_d3d11_exports_hooked && g_dxgi_exports_hooked) {
-            d3d11_hooks::try_capture_vtables();
-            return;
-        }
-        // sliced so shutdown doesn't have to wait a full second.
-        for (int32_t s = 0; s < 10 && !g_stop.load(); ++s) {
-            std::this_thread::sleep_for(100ms);
-        }
-    }
-}
-
-// the overlay's imgui dx11 backend needs D3DCompile (d3dcompiler_XX.dll) to
-// build its shaders. _43 ships with the DX June 2010 redist on stock Win7;
-// _46/_47 come with newer Windows.
-bool d3dcompiler_available() {
-    static const wchar_t *names[] = {
-        L"d3dcompiler_47.dll",
-        L"d3dcompiler_46.dll",
-        L"d3dcompiler_43.dll",
-    };
-    for (auto name : names) {
-        HMODULE mod = GetModuleHandleW(name);
-        if (!mod) {
-            mod = LoadLibraryW(name);
-        }
-        if (mod && GetProcAddress(mod, "D3DCompile")) {
-            return true;
-        }
-    }
-    return false;
-}
-
-} // namespace
-
-void graphics_d3d11_init() {
-    // dx11 titles always run under execexe. skipping on pure-dx9 games keeps
-    // their startup path completely untouched (no exports patched, no poll
-    // thread, no LDR callback).
-    if (!GetModuleHandleW(L"execexe.dll")) {
-        return;
-    }
-
-    // no d3dcompiler -> overlay can't build shaders; skip dx11 overlay
-    if (!d3dcompiler_available()) {
-        log_warning(
-            "graphics::d3d11",
-            "d3dcompiler not found; dx11 overlay disabled");
-        return;
-    }
-
-    std::lock_guard<std::mutex> lock(g_init_mutex);
-    if (g_poll_thread.joinable()) {
-        return; // already initialized
-    }
-
-    log_info("graphics::d3d11", "initializing");
-
-    // trampoline now if either DLL is already in the PEB.
-    try_install_d3d11_exports();
-    try_install_dxgi_exports();
-    try_capture_if_ready();
-
-    // catches standard LdrLoadDll loads.
-    auto reg = reinterpret_cast<decltype(&LdrRegisterDllNotification)>(
-        GetProcAddress(GetModuleHandleW(L"ntdll.dll"), "LdrRegisterDllNotification"));
-    if (reg) {
-        NTSTATUS st = reg(0, ldr_dll_notification, nullptr, &g_ldr_cookie);
-        if (NT_SUCCESS(st)) {
-            log_info("graphics::d3d11", "registered LDR DLL notification");
-        } else {
-            g_ldr_cookie = nullptr;
-            log_warning("graphics::d3d11",
-                "LdrRegisterDllNotification failed: {:#x}", (unsigned long)st);
-        }
-    }
-
-    // catches the execexe loader path that bypasses LdrLoadDll.
-    g_poll_thread = std::thread(poll_thread);
-}
-
-void graphics_d3d11_shutdown() {
-    std::lock_guard<std::mutex> lock(g_init_mutex);
-
-    // unregister first so the callback can't fire mid-teardown.
-    if (g_ldr_cookie) {
-        auto unreg = reinterpret_cast<decltype(&LdrUnregisterDllNotification)>(
-            GetProcAddress(GetModuleHandleW(L"ntdll.dll"), "LdrUnregisterDllNotification"));
-        if (unreg) {
-            unreg(g_ldr_cookie);
-        }
-        g_ldr_cookie = nullptr;
-    }
-
-    g_stop.store(true);
-    if (g_poll_thread.joinable()) {
-        g_poll_thread.join();
-    }
-}
-
-#endif // SPICE_D3D11
+// dx11 / dxgi hook entrypoint. trampolines d3d11.dll / dxgi.dll exports
+// the moment those DLLs appear (LDR notification + poll-thread fallback),
+// then drives proactive vtable capture so we don't lose the race against
+// the execexe loader. per-vtable hook implementations live in the sibling
+// files (d3d11_swapchain / d3d11_factory / d3d11_vtable_capture /
+// d3d11_screenshot).
+//
+// note: never LoadLibrary d3d11/dxgi -- execexe pre-loads them itself and
+// fails (error 0xa) if they're already in the loader's module list.
+//
+// 64-bit only.
+
+#include "d3d11_backend.h"
+
+#ifndef SPICE_D3D11
+
+void graphics_d3d11_init() {}
+void graphics_d3d11_shutdown() {}
+
+#else
+
+#include <atomic>
+#include <thread>
+#include <chrono>
+#include <cwchar>
+#include <mutex>
+
+#include <windows.h>
+#include <d3d11.h>
+#include <dxgi.h>
+#include <dxgi1_2.h>
+
+#include "d3d11_internal.h"
+#include "util/nt_loader.h"
+
+namespace {
+
+using D3D11CreateDeviceAndSwapChain_t = HRESULT(WINAPI *)(
+    IDXGIAdapter *, D3D_DRIVER_TYPE, HMODULE, UINT,
+    const D3D_FEATURE_LEVEL *, UINT, UINT,
+    const DXGI_SWAP_CHAIN_DESC *, IDXGISwapChain **,
+    ID3D11Device **, D3D_FEATURE_LEVEL *, ID3D11DeviceContext **);
+using CreateDXGIFactory_t = HRESULT(WINAPI *)(REFIID, void **);
+using CreateDXGIFactory1_t = HRESULT(WINAPI *)(REFIID, void **);
+using CreateDXGIFactory2_t = HRESULT(WINAPI *)(UINT, REFIID, void **);
+
+D3D11CreateDeviceAndSwapChain_t D3D11CreateDeviceAndSwapChain_orig = nullptr;
+CreateDXGIFactory_t CreateDXGIFactory_orig = nullptr;
+CreateDXGIFactory1_t CreateDXGIFactory1_orig = nullptr;
+CreateDXGIFactory2_t CreateDXGIFactory2_orig = nullptr;
+
+std::atomic<bool> g_d3d11_exports_hooked { false };
+std::atomic<bool> g_dxgi_exports_hooked { false };
+
+// ----------------------------------------------------------------------
+// top-level export hooks
+
+HRESULT WINAPI D3D11CreateDeviceAndSwapChain_hook(
+        IDXGIAdapter *pAdapter, D3D_DRIVER_TYPE DriverType, HMODULE Software, UINT Flags,
+        const D3D_FEATURE_LEVEL *pFeatureLevels, UINT FeatureLevels, UINT SDKVersion,
+        const DXGI_SWAP_CHAIN_DESC *pSwapChainDesc, IDXGISwapChain **ppSwapChain,
+        ID3D11Device **ppDevice, D3D_FEATURE_LEVEL *pFeatureLevel,
+        ID3D11DeviceContext **ppImmediateContext)
+{
+    HRESULT res = D3D11CreateDeviceAndSwapChain_orig(
+        pAdapter, DriverType, Software, Flags,
+        pFeatureLevels, FeatureLevels, SDKVersion,
+        pSwapChainDesc, ppSwapChain, ppDevice, pFeatureLevel, ppImmediateContext);
+    if (SUCCEEDED(res) && ppSwapChain && *ppSwapChain) {
+        if (pSwapChainDesc) {
+            d3d11_hooks::note_main_hwnd(pSwapChainDesc->OutputWindow);
+        }
+        d3d11_hooks::install_swapchain_hooks(*ppSwapChain);
+    }
+    return res;
+}
+
+#define DEFINE_FACTORY_HOOK(NAME, SIG_PARAMS, ORIG_ARGS)                       \
+    HRESULT WINAPI NAME##_hook SIG_PARAMS {                                    \
+        HRESULT res = NAME##_orig ORIG_ARGS;                                   \
+        if (SUCCEEDED(res) && ppFactory && *ppFactory) {                       \
+            d3d11_hooks::install_factory_hooks(                                \
+                reinterpret_cast<IUnknown *>(*ppFactory));                     \
+        }                                                                      \
+        return res;                                                            \
+    }
+
+DEFINE_FACTORY_HOOK(CreateDXGIFactory,
+    (REFIID riid, void **ppFactory),
+    (riid, ppFactory))
+DEFINE_FACTORY_HOOK(CreateDXGIFactory1,
+    (REFIID riid, void **ppFactory),
+    (riid, ppFactory))
+DEFINE_FACTORY_HOOK(CreateDXGIFactory2,
+    (UINT Flags, REFIID riid, void **ppFactory),
+    (Flags, riid, ppFactory))
+
+#undef DEFINE_FACTORY_HOOK
+
+// ----------------------------------------------------------------------
+// export trampoline plumbing
+
+// serializes trampoline_export() so the LDR notification callback and the
+// poll thread don't race each other into MinHook against the same target.
+std::mutex g_export_mutex;
+
+bool trampoline_export(const char *dll, const char *name, void *hook, void **orig) {
+    std::lock_guard<std::mutex> lock(g_export_mutex);
+    if (*orig) {
+        return true;
+    }
+    HMODULE mod = GetModuleHandleA(dll);
+    if (!mod) {
+        return false;
+    }
+    void *addr = reinterpret_cast<void *>(GetProcAddress(mod, name));
+    if (!addr) {
+        return false;
+    }
+    *orig = addr; // trampoline_try reads *orig before overwriting it.
+    if (!detour::trampoline_try(addr, hook, orig)) {
+        *orig = nullptr;
+        return false;
+    }
+    log_info("graphics::d3d11", "trampolined {}!{}", dll, name);
+    return true;
+}
+
+void try_install_d3d11_exports() {
+    if (g_d3d11_exports_hooked) {
+        return;
+    }
+    if (trampoline_export("d3d11.dll", "D3D11CreateDeviceAndSwapChain",
+            (void *) D3D11CreateDeviceAndSwapChain_hook,
+            (void **) &D3D11CreateDeviceAndSwapChain_orig)) {
+        g_d3d11_exports_hooked = true;
+    }
+}
+
+void try_install_dxgi_exports() {
+    if (g_dxgi_exports_hooked) {
+        return;
+    }
+    struct entry { const char *name; void *hook; void **orig; };
+    const entry entries[] = {
+        { "CreateDXGIFactory", (void *) CreateDXGIFactory_hook,
+          (void **) &CreateDXGIFactory_orig },
+        { "CreateDXGIFactory1", (void *) CreateDXGIFactory1_hook,
+          (void **) &CreateDXGIFactory1_orig },
+        { "CreateDXGIFactory2", (void *) CreateDXGIFactory2_hook,
+          (void **) &CreateDXGIFactory2_orig },
+    };
+    bool any = false;
+    for (auto &e : entries) {
+        any |= trampoline_export("dxgi.dll", e.name, e.hook, e.orig);
+    }
+    if (any) {
+        g_dxgi_exports_hooked = true;
+    }
+}
+
+void try_capture_if_ready() {
+    if (g_d3d11_exports_hooked && g_dxgi_exports_hooked) {
+        d3d11_hooks::try_capture_vtables();
+    }
+}
+
+// ----------------------------------------------------------------------
+// LDR notification + polling fallback
+
+bool dll_name_ends_with(PCUNICODE_STRING name, const wchar_t *suffix) {
+    if (!name || !name->Buffer) {
+        return false;
+    }
+    const size_t n = name->Length / sizeof(WCHAR);
+    const size_t s = wcslen(suffix);
+    return n >= s && _wcsnicmp(name->Buffer + n - s, suffix, s) == 0;
+}
+
+VOID CALLBACK ldr_dll_notification(
+        ULONG reason, PCLDR_DLL_NOTIFICATION_DATA data, PVOID /*context*/)
+{
+    if (reason != LDR_DLL_NOTIFICATION_REASON_LOADED || !data) {
+        return;
+    }
+    if (dll_name_ends_with(data->Loaded.BaseDllName, L"d3d11.dll")) {
+        try_install_d3d11_exports();
+    } else if (dll_name_ends_with(data->Loaded.BaseDllName, L"dxgi.dll")) {
+        try_install_dxgi_exports();
+    }
+}
+
+// execexe maps d3d11/dxgi via a path that bypasses LdrLoadDll, so the
+// notification above never fires for those DLLs and we have to poll.
+std::atomic<bool> g_stop { false };
+std::thread g_poll_thread;
+std::mutex g_init_mutex;
+PVOID g_ldr_cookie = nullptr;
+
+void poll_thread() {
+    using namespace std::chrono_literals;
+    for (int32_t i = 0; i < 120 && !g_stop.load(); ++i) {
+        try_install_d3d11_exports();
+        try_install_dxgi_exports();
+        if (g_d3d11_exports_hooked && g_dxgi_exports_hooked) {
+            d3d11_hooks::try_capture_vtables();
+            return;
+        }
+        // sliced so shutdown doesn't have to wait a full second.
+        for (int32_t s = 0; s < 10 && !g_stop.load(); ++s) {
+            std::this_thread::sleep_for(100ms);
+        }
+    }
+}
+
+// the overlay's imgui dx11 backend needs D3DCompile (d3dcompiler_XX.dll) to
+// build its shaders. _43 ships with the DX June 2010 redist on stock Win7;
+// _46/_47 come with newer Windows.
+bool d3dcompiler_available() {
+    static const wchar_t *names[] = {
+        L"d3dcompiler_47.dll",
+        L"d3dcompiler_46.dll",
+        L"d3dcompiler_43.dll",
+    };
+    for (auto name : names) {
+        HMODULE mod = GetModuleHandleW(name);
+        if (!mod) {
+            mod = LoadLibraryW(name);
+        }
+        if (mod && GetProcAddress(mod, "D3DCompile")) {
+            return true;
+        }
+    }
+    return false;
+}
+
+} // namespace
+
+void graphics_d3d11_init() {
+    // dx11 titles always run under execexe. skipping on pure-dx9 games keeps
+    // their startup path completely untouched (no exports patched, no poll
+    // thread, no LDR callback).
+    if (!GetModuleHandleW(L"execexe.dll")) {
+        return;
+    }
+
+    // no d3dcompiler -> overlay can't build shaders; skip dx11 overlay
+    if (!d3dcompiler_available()) {
+        log_warning(
+            "graphics::d3d11",
+            "d3dcompiler not found; dx11 overlay disabled");
+        return;
+    }
+
+    std::lock_guard<std::mutex> lock(g_init_mutex);
+    if (g_poll_thread.joinable()) {
+        return; // already initialized
+    }
+
+    log_info("graphics::d3d11", "initializing");
+
+    // trampoline now if either DLL is already in the PEB.
+    try_install_d3d11_exports();
+    try_install_dxgi_exports();
+    try_capture_if_ready();
+
+    // catches standard LdrLoadDll loads.
+    auto reg = reinterpret_cast<decltype(&LdrRegisterDllNotification)>(
+        GetProcAddress(GetModuleHandleW(L"ntdll.dll"), "LdrRegisterDllNotification"));
+    if (reg) {
+        NTSTATUS st = reg(0, ldr_dll_notification, nullptr, &g_ldr_cookie);
+        if (NT_SUCCESS(st)) {
+            log_info("graphics::d3d11", "registered LDR DLL notification");
+        } else {
+            g_ldr_cookie = nullptr;
+            log_warning("graphics::d3d11",
+                "LdrRegisterDllNotification failed: {:#x}", (unsigned long)st);
+        }
+    }
+
+    // catches the execexe loader path that bypasses LdrLoadDll.
+    g_poll_thread = std::thread(poll_thread);
+}
+
+void graphics_d3d11_shutdown() {
+    std::lock_guard<std::mutex> lock(g_init_mutex);
+
+    // unregister first so the callback can't fire mid-teardown.
+    if (g_ldr_cookie) {
+        auto unreg = reinterpret_cast<decltype(&LdrUnregisterDllNotification)>(
+            GetProcAddress(GetModuleHandleW(L"ntdll.dll"), "LdrUnregisterDllNotification"));
+        if (unreg) {
+            unreg(g_ldr_cookie);
+        }
+        g_ldr_cookie = nullptr;
+    }
+
+    g_stop.store(true);
+    if (g_poll_thread.joinable()) {
+        g_poll_thread.join();
+    }
+}
+
+#endif // SPICE_D3D11
@@ -1,24 +1,24 @@
-#pragma once
-
-#include "overlay/overlay.h"
-
-void graphics_d3d11_init();
-void graphics_d3d11_shutdown();
-
-#ifdef SPICE_D3D11
-
-struct ID3D11Device;
-struct ID3D11DeviceContext;
-struct ID3D11RenderTargetView;
-struct IDXGISwapChain;
-
-namespace overlay::d3d11 {
-
-    void render(ID3D11Device *device,
-                ID3D11DeviceContext *context,
-                IDXGISwapChain *swapchain,
-                ID3D11RenderTargetView **rtv);
-
-}
-
-#endif
+#pragma once
+
+#include "overlay/overlay.h"
+
+void graphics_d3d11_init();
+void graphics_d3d11_shutdown();
+
+#ifdef SPICE_D3D11
+
+struct ID3D11Device;
+struct ID3D11DeviceContext;
+struct ID3D11RenderTargetView;
+struct IDXGISwapChain;
+
+namespace overlay::d3d11 {
+
+    void render(ID3D11Device *device,
+                ID3D11DeviceContext *context,
+                IDXGISwapChain *swapchain,
+                ID3D11RenderTargetView **rtv);
+
+}
+
+#endif
@@ -1,102 +1,102 @@
-// dx11 factory vtable hooks. patches CreateSwapChain / CreateSwapChainForHwnd
-// so we can install_swapchain_hooks against every newly-created swapchain.
-
-#include "d3d11_backend.h"
-
-#ifdef SPICE_D3D11
-
-#include <mutex>
-
-#include <windows.h>
-#include <d3d11.h>
-#include <dxgi.h>
-#include <dxgi1_2.h>
-
-#include "d3d11_internal.h"
-
-namespace {
-
-using CreateSwapChain_t = HRESULT(STDMETHODCALLTYPE *)(
-    IDXGIFactory *, IUnknown *, DXGI_SWAP_CHAIN_DESC *, IDXGISwapChain **);
-using CreateSwapChainForHwnd_t = HRESULT(STDMETHODCALLTYPE *)(
-    IDXGIFactory2 *, IUnknown *, HWND,
-    const DXGI_SWAP_CHAIN_DESC1 *,
-    const DXGI_SWAP_CHAIN_FULLSCREEN_DESC *,
-    IDXGIOutput *, IDXGISwapChain1 **);
-
-CreateSwapChain_t CreateSwapChain_orig = nullptr;
-CreateSwapChainForHwnd_t CreateSwapChainForHwnd_orig = nullptr;
-
-bool g_factory_hooked = false;
-bool g_factory2_hooked = false;
-std::mutex g_hook_mutex;
-
-HRESULT STDMETHODCALLTYPE CreateSwapChain_hook(
-        IDXGIFactory *factory, IUnknown *pDevice,
-        DXGI_SWAP_CHAIN_DESC *pDesc, IDXGISwapChain **ppSwapChain)
-{
-    HRESULT res = CreateSwapChain_orig(factory, pDevice, pDesc, ppSwapChain);
-    if (SUCCEEDED(res) && ppSwapChain && *ppSwapChain) {
-        if (pDesc) {
-            d3d11_hooks::note_main_hwnd(pDesc->OutputWindow);
-        }
-        d3d11_hooks::install_swapchain_hooks(*ppSwapChain);
-    }
-    return res;
-}
-
-HRESULT STDMETHODCALLTYPE CreateSwapChainForHwnd_hook(
-        IDXGIFactory2 *factory, IUnknown *pDevice, HWND hWnd,
-        const DXGI_SWAP_CHAIN_DESC1 *pDesc,
-        const DXGI_SWAP_CHAIN_FULLSCREEN_DESC *pFullscreenDesc,
-        IDXGIOutput *pRestrictToOutput, IDXGISwapChain1 **ppSwapChain)
-{
-    HRESULT res = CreateSwapChainForHwnd_orig(
-        factory, pDevice, hWnd, pDesc, pFullscreenDesc, pRestrictToOutput, ppSwapChain);
-    if (SUCCEEDED(res) && ppSwapChain && *ppSwapChain) {
-        d3d11_hooks::note_main_hwnd(hWnd);
-        d3d11_hooks::install_swapchain_hooks(*ppSwapChain);
-    }
-    return res;
-}
-
-// QI-and-hook helper: dedupes the IDXGIFactory / IDXGIFactory2 install paths.
-template<typename Iface>
-void install_on(IUnknown *factory, bool &flag,
-                size_t vtbl_index, void *hook, void **orig, const char *name)
-{
-    if (flag) {
-        return;
-    }
-    Iface *f = nullptr;
-    if (FAILED(factory->QueryInterface(IID_PPV_ARGS(&f))) || !f) {
-        return;
-    }
-    if (d3d11_hooks::hook_vtbl(f, vtbl_index, hook, orig, name)) {
-        flag = true;
-    }
-    f->Release();
-}
-
-} // namespace
-
-namespace d3d11_hooks {
-
-void install_factory_hooks(IUnknown *factory) {
-    if (!factory) {
-        return;
-    }
-    std::lock_guard<std::mutex> lock(g_hook_mutex);
-
-    install_on<IDXGIFactory>(factory, g_factory_hooked, 10,
-        (void *) CreateSwapChain_hook, (void **) &CreateSwapChain_orig,
-        "IDXGIFactory::CreateSwapChain");
-
-    install_on<IDXGIFactory2>(factory, g_factory2_hooked, 15,
-        (void *) CreateSwapChainForHwnd_hook, (void **) &CreateSwapChainForHwnd_orig,
-        "IDXGIFactory2::CreateSwapChainForHwnd");
-}
-
-}
-
-#endif // SPICE_D3D11
+// dx11 factory vtable hooks. patches CreateSwapChain / CreateSwapChainForHwnd
+// so we can install_swapchain_hooks against every newly-created swapchain.
+
+#include "d3d11_backend.h"
+
+#ifdef SPICE_D3D11
+
+#include <mutex>
+
+#include <windows.h>
+#include <d3d11.h>
+#include <dxgi.h>
+#include <dxgi1_2.h>
+
+#include "d3d11_internal.h"
+
+namespace {
+
+using CreateSwapChain_t = HRESULT(STDMETHODCALLTYPE *)(
+    IDXGIFactory *, IUnknown *, DXGI_SWAP_CHAIN_DESC *, IDXGISwapChain **);
+using CreateSwapChainForHwnd_t = HRESULT(STDMETHODCALLTYPE *)(
+    IDXGIFactory2 *, IUnknown *, HWND,
+    const DXGI_SWAP_CHAIN_DESC1 *,
+    const DXGI_SWAP_CHAIN_FULLSCREEN_DESC *,
+    IDXGIOutput *, IDXGISwapChain1 **);
+
+CreateSwapChain_t CreateSwapChain_orig = nullptr;
+CreateSwapChainForHwnd_t CreateSwapChainForHwnd_orig = nullptr;
+
+bool g_factory_hooked = false;
+bool g_factory2_hooked = false;
+std::mutex g_hook_mutex;
+
+HRESULT STDMETHODCALLTYPE CreateSwapChain_hook(
+        IDXGIFactory *factory, IUnknown *pDevice,
+        DXGI_SWAP_CHAIN_DESC *pDesc, IDXGISwapChain **ppSwapChain)
+{
+    HRESULT res = CreateSwapChain_orig(factory, pDevice, pDesc, ppSwapChain);
+    if (SUCCEEDED(res) && ppSwapChain && *ppSwapChain) {
+        if (pDesc) {
+            d3d11_hooks::note_main_hwnd(pDesc->OutputWindow);
+        }
+        d3d11_hooks::install_swapchain_hooks(*ppSwapChain);
+    }
+    return res;
+}
+
+HRESULT STDMETHODCALLTYPE CreateSwapChainForHwnd_hook(
+        IDXGIFactory2 *factory, IUnknown *pDevice, HWND hWnd,
+        const DXGI_SWAP_CHAIN_DESC1 *pDesc,
+        const DXGI_SWAP_CHAIN_FULLSCREEN_DESC *pFullscreenDesc,
+        IDXGIOutput *pRestrictToOutput, IDXGISwapChain1 **ppSwapChain)
+{
+    HRESULT res = CreateSwapChainForHwnd_orig(
+        factory, pDevice, hWnd, pDesc, pFullscreenDesc, pRestrictToOutput, ppSwapChain);
+    if (SUCCEEDED(res) && ppSwapChain && *ppSwapChain) {
+        d3d11_hooks::note_main_hwnd(hWnd);
+        d3d11_hooks::install_swapchain_hooks(*ppSwapChain);
+    }
+    return res;
+}
+
+// QI-and-hook helper: dedupes the IDXGIFactory / IDXGIFactory2 install paths.
+template<typename Iface>
+void install_on(IUnknown *factory, bool &flag,
+                size_t vtbl_index, void *hook, void **orig, const char *name)
+{
+    if (flag) {
+        return;
+    }
+    Iface *f = nullptr;
+    if (FAILED(factory->QueryInterface(IID_PPV_ARGS(&f))) || !f) {
+        return;
+    }
+    if (d3d11_hooks::hook_vtbl(f, vtbl_index, hook, orig, name)) {
+        flag = true;
+    }
+    f->Release();
+}
+
+} // namespace
+
+namespace d3d11_hooks {
+
+void install_factory_hooks(IUnknown *factory) {
+    if (!factory) {
+        return;
+    }
+    std::lock_guard<std::mutex> lock(g_hook_mutex);
+
+    install_on<IDXGIFactory>(factory, g_factory_hooked, 10,
+        (void *) CreateSwapChain_hook, (void **) &CreateSwapChain_orig,
+        "IDXGIFactory::CreateSwapChain");
+
+    install_on<IDXGIFactory2>(factory, g_factory2_hooked, 15,
+        (void *) CreateSwapChainForHwnd_hook, (void **) &CreateSwapChainForHwnd_orig,
+        "IDXGIFactory2::CreateSwapChainForHwnd");
+}
+
+}
+
+#endif // SPICE_D3D11
@@ -1,59 +1,59 @@
-#pragma once
-
-// internal glue for the dx11 backend. all symbols gated on SPICE_D3D11.
-
-#include "overlay/overlay.h"
-
-#ifdef SPICE_D3D11
-
-#include <memory>
-
-#include "util/detour.h"
-#include "util/logging.h"
-
-struct HWND__; typedef HWND__ *HWND;
-struct IUnknown;
-struct IDXGISwapChain;
-
-namespace d3d11_hooks {
-
-    void install_swapchain_hooks(IDXGISwapChain *swapchain);
-    void install_factory_hooks(IUnknown *factory);
-    void try_capture_vtables();
-
-    // first non-null swapchain HWND wins; later ones (sub-screens, IME
-    // helpers) are ignored. the dummy capture window is exempted via
-    // ignore_hwnd.
-    void note_main_hwnd(HWND hwnd);
-    HWND main_hwnd();
-    void ignore_hwnd(HWND hwnd);
-
-    // capture backbuffer to PNG if a screenshot was requested.
-    void try_screenshot(IDXGISwapChain *swapchain);
-
-    // trampoline a virtual method by vtable index. on failure *orig is null.
-    inline bool hook_vtbl(void *iface, size_t index,
-                          void *hook, void **orig, const char *name)
-    {
-        void **vtbl = *reinterpret_cast<void ***>(iface);
-        void *target = vtbl[index];
-        // trampoline_try reads *orig before overwriting it.
-        *orig = target;
-        if (!detour::trampoline_try(target, hook, orig)) {
-            *orig = nullptr;
-            log_warning("graphics::d3d11", "failed to hook {}", name);
-            return false;
-        }
-        log_info("graphics::d3d11", "hooked {}", name);
-        return true;
-    }
-
-    // minimal COM RAII used by capture / screenshot paths.
-    struct com_release {
-        void operator()(IUnknown *p) const { if (p) p->Release(); }
-    };
-    template<typename T> using com_ptr = std::unique_ptr<T, com_release>;
-
-}
-
-#endif
+#pragma once
+
+// internal glue for the dx11 backend. all symbols gated on SPICE_D3D11.
+
+#include "overlay/overlay.h"
+
+#ifdef SPICE_D3D11
+
+#include <memory>
+
+#include "util/detour.h"
+#include "util/logging.h"
+
+struct HWND__; typedef HWND__ *HWND;
+struct IUnknown;
+struct IDXGISwapChain;
+
+namespace d3d11_hooks {
+
+    void install_swapchain_hooks(IDXGISwapChain *swapchain);
+    void install_factory_hooks(IUnknown *factory);
+    void try_capture_vtables();
+
+    // first non-null swapchain HWND wins; later ones (sub-screens, IME
+    // helpers) are ignored. the dummy capture window is exempted via
+    // ignore_hwnd.
+    void note_main_hwnd(HWND hwnd);
+    HWND main_hwnd();
+    void ignore_hwnd(HWND hwnd);
+
+    // capture backbuffer to PNG if a screenshot was requested.
+    void try_screenshot(IDXGISwapChain *swapchain);
+
+    // trampoline a virtual method by vtable index. on failure *orig is null.
+    inline bool hook_vtbl(void *iface, size_t index,
+                          void *hook, void **orig, const char *name)
+    {
+        void **vtbl = *reinterpret_cast<void ***>(iface);
+        void *target = vtbl[index];
+        // trampoline_try reads *orig before overwriting it.
+        *orig = target;
+        if (!detour::trampoline_try(target, hook, orig)) {
+            *orig = nullptr;
+            log_warning("graphics::d3d11", "failed to hook {}", name);
+            return false;
+        }
+        log_info("graphics::d3d11", "hooked {}", name);
+        return true;
+    }
+
+    // minimal COM RAII used by capture / screenshot paths.
+    struct com_release {
+        void operator()(IUnknown *p) const { if (p) p->Release(); }
+    };
+    template<typename T> using com_ptr = std::unique_ptr<T, com_release>;
+
+}
+
+#endif
@@ -1,165 +1,165 @@
-// dx11 screenshot capture. mirrors the d3d9 backend: copy the current
-// backbuffer into a staging texture, force alpha=255, write PNG via
-// stb_image_write, push to clipboard and notify.
-
-#include "d3d11_backend.h"
-
-#ifdef SPICE_D3D11
-
-#include <vector>
-
-#include <windows.h>
-#include <d3d11.h>
-#include <dxgi.h>
-
-#include "d3d11_internal.h"
-
-#include "external/stb_image_write.h"
-#include "hooks/graphics/graphics.h"
-#include "misc/clipboard.h"
-#include "overlay/notifications.h"
-#include "util/fileutils.h"
-
-using d3d11_hooks::com_ptr;
-
-namespace {
-
-// copy the swapchain backbuffer into a CPU-readable staging texture and
-// flatten it into an RGBA8 buffer (BGRA backbuffers are swizzled,
-// alpha is forced to 255).
-bool copy_backbuffer_to_rgba(IDXGISwapChain *swapchain,
-                             ID3D11Device *device,
-                             ID3D11DeviceContext *context,
-                             std::vector<uint8_t> &out,
-                             uint32_t &out_w, uint32_t &out_h)
-{
-    ID3D11Texture2D *raw_bb = nullptr;
-    if (FAILED(swapchain->GetBuffer(0, IID_PPV_ARGS(&raw_bb))) || !raw_bb) {
-        return false;
-    }
-    com_ptr<ID3D11Texture2D> backbuffer(raw_bb);
-
-    D3D11_TEXTURE2D_DESC desc {};
-    backbuffer->GetDesc(&desc);
-
-    // MSAA backbuffers can't be CopyResource'd into a non-MS staging target.
-    com_ptr<ID3D11Texture2D> resolved;
-    ID3D11Texture2D *source = backbuffer.get();
-    if (desc.SampleDesc.Count > 1) {
-        D3D11_TEXTURE2D_DESC rd = desc;
-        rd.SampleDesc.Count = 1;
-        rd.SampleDesc.Quality = 0;
-        rd.Usage = D3D11_USAGE_DEFAULT;
-        rd.BindFlags = D3D11_BIND_RENDER_TARGET;
-        rd.CPUAccessFlags = 0;
-        rd.MiscFlags = 0;
-        ID3D11Texture2D *r = nullptr;
-        if (FAILED(device->CreateTexture2D(&rd, nullptr, &r)) || !r) {
-            return false;
-        }
-        resolved.reset(r);
-        context->ResolveSubresource(resolved.get(), 0, backbuffer.get(), 0, desc.Format);
-        source = resolved.get();
-    }
-
-    D3D11_TEXTURE2D_DESC sd {};
-    sd.Width = desc.Width;
-    sd.Height = desc.Height;
-    sd.MipLevels = 1;
-    sd.ArraySize = 1;
-    sd.Format = desc.Format;
-    sd.SampleDesc.Count = 1;
-    sd.Usage = D3D11_USAGE_STAGING;
-    sd.CPUAccessFlags = D3D11_CPU_ACCESS_READ;
-
-    ID3D11Texture2D *raw_staging = nullptr;
-    if (FAILED(device->CreateTexture2D(&sd, nullptr, &raw_staging)) || !raw_staging) {
-        return false;
-    }
-    com_ptr<ID3D11Texture2D> staging(raw_staging);
-    context->CopyResource(staging.get(), source);
-
-    D3D11_MAPPED_SUBRESOURCE mapped {};
-    if (FAILED(context->Map(staging.get(), 0, D3D11_MAP_READ, 0, &mapped))) {
-        return false;
-    }
-
-    // backbuffers from GetDesc are always fully-typed (never _TYPELESS).
-    const bool is_bgra = desc.Format == DXGI_FORMAT_B8G8R8A8_UNORM
-                      || desc.Format == DXGI_FORMAT_B8G8R8A8_UNORM_SRGB;
-
-    out.resize(static_cast<size_t>(desc.Width) * desc.Height * 4);
-    const uint8_t *src_base = reinterpret_cast<const uint8_t *>(mapped.pData);
-    for (uint32_t y = 0; y < desc.Height; ++y) {
-        const uint8_t *row = src_base + static_cast<size_t>(y) * mapped.RowPitch;
-        uint8_t *dst = out.data() + static_cast<size_t>(y) * desc.Width * 4;
-        for (uint32_t x = 0; x < desc.Width; ++x) {
-            dst[x * 4 + 0] = row[x * 4 + (is_bgra ? 2 : 0)];
-            dst[x * 4 + 1] = row[x * 4 + 1];
-            dst[x * 4 + 2] = row[x * 4 + (is_bgra ? 0 : 2)];
-            dst[x * 4 + 3] = 255;
-        }
-    }
-
-    context->Unmap(staging.get(), 0);
-
-    out_w = desc.Width;
-    out_h = desc.Height;
-    return true;
-}
-
-} // namespace
-
-namespace d3d11_hooks {
-
-void try_screenshot(IDXGISwapChain *swapchain) {
-    if (!swapchain || !graphics_screenshot_consume()) {
-        return;
-    }
-
-    auto file_path = graphics_screenshot_genpath();
-    if (file_path.empty()) {
-        return;
-    }
-
-    ID3D11Device *raw_device = nullptr;
-    if (FAILED(swapchain->GetDevice(IID_PPV_ARGS(&raw_device))) || !raw_device) {
-        return;
-    }
-    com_ptr<ID3D11Device> device(raw_device);
-    ID3D11DeviceContext *raw_ctx = nullptr;
-    device->GetImmediateContext(&raw_ctx);
-    if (!raw_ctx) {
-        return;
-    }
-    com_ptr<ID3D11DeviceContext> context(raw_ctx);
-
-    std::vector<uint8_t> pixels;
-    uint32_t w = 0, h = 0;
-    if (!copy_backbuffer_to_rgba(swapchain, device.get(), context.get(), pixels, w, h)) {
-        log_warning("graphics::d3d11", "screenshot: failed to capture backbuffer");
-        overlay::notifications::add(
-            overlay::notifications::Severity::Error,
-            "Screenshot failed to capture");
-        return;
-    }
-
-    log_info("graphics::d3d11", "saving screenshot to {}", file_path);
-    if (stbi_write_png(file_path.c_str(), (int) w, (int) h, 4,
-                       pixels.data(), (int) w * 4))
-    {
-        clipboard::copy_image(file_path);
-        overlay::notifications::add(
-            overlay::notifications::Severity::Success,
-            fmt::format("Screenshot saved: {}", fileutils::basename(file_path)));
-    } else {
-        log_warning("graphics::d3d11", "screenshot: stbi_write_png failed");
-        overlay::notifications::add(
-            overlay::notifications::Severity::Error,
-            "Screenshot failed to save");
-    }
-}
-
-}
-
-#endif // SPICE_D3D11
+// dx11 screenshot capture. mirrors the d3d9 backend: copy the current
+// backbuffer into a staging texture, force alpha=255, write PNG via
+// stb_image_write, push to clipboard and notify.
+
+#include "d3d11_backend.h"
+
+#ifdef SPICE_D3D11
+
+#include <vector>
+
+#include <windows.h>
+#include <d3d11.h>
+#include <dxgi.h>
+
+#include "d3d11_internal.h"
+
+#include "external/stb_image_write.h"
+#include "hooks/graphics/graphics.h"
+#include "misc/clipboard.h"
+#include "overlay/notifications.h"
+#include "util/fileutils.h"
+
+using d3d11_hooks::com_ptr;
+
+namespace {
+
+// copy the swapchain backbuffer into a CPU-readable staging texture and
+// flatten it into an RGBA8 buffer (BGRA backbuffers are swizzled,
+// alpha is forced to 255).
+bool copy_backbuffer_to_rgba(IDXGISwapChain *swapchain,
+                             ID3D11Device *device,
+                             ID3D11DeviceContext *context,
+                             std::vector<uint8_t> &out,
+                             uint32_t &out_w, uint32_t &out_h)
+{
+    ID3D11Texture2D *raw_bb = nullptr;
+    if (FAILED(swapchain->GetBuffer(0, IID_PPV_ARGS(&raw_bb))) || !raw_bb) {
+        return false;
+    }
+    com_ptr<ID3D11Texture2D> backbuffer(raw_bb);
+
+    D3D11_TEXTURE2D_DESC desc {};
+    backbuffer->GetDesc(&desc);
+
+    // MSAA backbuffers can't be CopyResource'd into a non-MS staging target.
+    com_ptr<ID3D11Texture2D> resolved;
+    ID3D11Texture2D *source = backbuffer.get();
+    if (desc.SampleDesc.Count > 1) {
+        D3D11_TEXTURE2D_DESC rd = desc;
+        rd.SampleDesc.Count = 1;
+        rd.SampleDesc.Quality = 0;
+        rd.Usage = D3D11_USAGE_DEFAULT;
+        rd.BindFlags = D3D11_BIND_RENDER_TARGET;
+        rd.CPUAccessFlags = 0;
+        rd.MiscFlags = 0;
+        ID3D11Texture2D *r = nullptr;
+        if (FAILED(device->CreateTexture2D(&rd, nullptr, &r)) || !r) {
+            return false;
+        }
+        resolved.reset(r);
+        context->ResolveSubresource(resolved.get(), 0, backbuffer.get(), 0, desc.Format);
+        source = resolved.get();
+    }
+
+    D3D11_TEXTURE2D_DESC sd {};
+    sd.Width = desc.Width;
+    sd.Height = desc.Height;
+    sd.MipLevels = 1;
+    sd.ArraySize = 1;
+    sd.Format = desc.Format;
+    sd.SampleDesc.Count = 1;
+    sd.Usage = D3D11_USAGE_STAGING;
+    sd.CPUAccessFlags = D3D11_CPU_ACCESS_READ;
+
+    ID3D11Texture2D *raw_staging = nullptr;
+    if (FAILED(device->CreateTexture2D(&sd, nullptr, &raw_staging)) || !raw_staging) {
+        return false;
+    }
+    com_ptr<ID3D11Texture2D> staging(raw_staging);
+    context->CopyResource(staging.get(), source);
+
+    D3D11_MAPPED_SUBRESOURCE mapped {};
+    if (FAILED(context->Map(staging.get(), 0, D3D11_MAP_READ, 0, &mapped))) {
+        return false;
+    }
+
+    // backbuffers from GetDesc are always fully-typed (never _TYPELESS).
+    const bool is_bgra = desc.Format == DXGI_FORMAT_B8G8R8A8_UNORM
+                      || desc.Format == DXGI_FORMAT_B8G8R8A8_UNORM_SRGB;
+
+    out.resize(static_cast<size_t>(desc.Width) * desc.Height * 4);
+    const uint8_t *src_base = reinterpret_cast<const uint8_t *>(mapped.pData);
+    for (uint32_t y = 0; y < desc.Height; ++y) {
+        const uint8_t *row = src_base + static_cast<size_t>(y) * mapped.RowPitch;
+        uint8_t *dst = out.data() + static_cast<size_t>(y) * desc.Width * 4;
+        for (uint32_t x = 0; x < desc.Width; ++x) {
+            dst[x * 4 + 0] = row[x * 4 + (is_bgra ? 2 : 0)];
+            dst[x * 4 + 1] = row[x * 4 + 1];
+            dst[x * 4 + 2] = row[x * 4 + (is_bgra ? 0 : 2)];
+            dst[x * 4 + 3] = 255;
+        }
+    }
+
+    context->Unmap(staging.get(), 0);
+
+    out_w = desc.Width;
+    out_h = desc.Height;
+    return true;
+}
+
+} // namespace
+
+namespace d3d11_hooks {
+
+void try_screenshot(IDXGISwapChain *swapchain) {
+    if (!swapchain || !graphics_screenshot_consume()) {
+        return;
+    }
+
+    auto file_path = graphics_screenshot_genpath();
+    if (file_path.empty()) {
+        return;
+    }
+
+    ID3D11Device *raw_device = nullptr;
+    if (FAILED(swapchain->GetDevice(IID_PPV_ARGS(&raw_device))) || !raw_device) {
+        return;
+    }
+    com_ptr<ID3D11Device> device(raw_device);
+    ID3D11DeviceContext *raw_ctx = nullptr;
+    device->GetImmediateContext(&raw_ctx);
+    if (!raw_ctx) {
+        return;
+    }
+    com_ptr<ID3D11DeviceContext> context(raw_ctx);
+
+    std::vector<uint8_t> pixels;
+    uint32_t w = 0, h = 0;
+    if (!copy_backbuffer_to_rgba(swapchain, device.get(), context.get(), pixels, w, h)) {
+        log_warning("graphics::d3d11", "screenshot: failed to capture backbuffer");
+        overlay::notifications::add(
+            overlay::notifications::Severity::Error,
+            "Screenshot failed to capture");
+        return;
+    }
+
+    log_info("graphics::d3d11", "saving screenshot to {}", file_path);
+    if (stbi_write_png(file_path.c_str(), (int) w, (int) h, 4,
+                       pixels.data(), (int) w * 4))
+    {
+        clipboard::copy_image(file_path);
+        overlay::notifications::add(
+            overlay::notifications::Severity::Success,
+            fmt::format("Screenshot saved: {}", fileutils::basename(file_path)));
+    } else {
+        log_warning("graphics::d3d11", "screenshot: stbi_write_png failed");
+        overlay::notifications::add(
+            overlay::notifications::Severity::Error,
+            "Screenshot failed to save");
+    }
+}
+
+}
+
+#endif // SPICE_D3D11
@@ -1,294 +1,343 @@
-// dx11 swapchain vtable hooks + per-frame overlay pump.
-//
-// dxgi shares vtables across swapchain instances, so we only need to patch
-// Present / Present1 / ResizeBuffers once on the first instance we see.
-// each frame we lazily attach the overlay to whichever swapchain is
-// presenting, then drive its imgui update / new_frame / render cycle.
-
-#include "d3d11_backend.h"
-
-#ifdef SPICE_D3D11
-
-#include <atomic>
-#include <mutex>
-
-#include <windows.h>
-#include <d3d11.h>
-#include <dxgi.h>
-#include <dxgi1_2.h>
-
-#include "d3d11_internal.h"
-
-#include "external/imgui/imgui.h"
-#include "external/imgui/backends/imgui_impl_dx11.h"
-#include "overlay/imgui/impl_spice.h"
-
-#include "games/io.h"
-#include "hooks/graphics/graphics.h"
-#include "launcher/launcher.h"
-#include "misc/eamuse.h"
-#include "util/utils.h"
-
-// --------------------------------------------------------------------------
-// overlay render bridge
-
-namespace overlay::d3d11 {
-
-    // sRGB backbuffers need a UNORM view: ImGui vertex colors are already
-    // sRGB-encoded, so an extra linear->sRGB conversion would wash the
-    // overlay out white.
-    static DXGI_FORMAT to_unorm_view(DXGI_FORMAT fmt) {
-        switch (fmt) {
-            case DXGI_FORMAT_R8G8B8A8_UNORM_SRGB: return DXGI_FORMAT_R8G8B8A8_UNORM;
-            case DXGI_FORMAT_B8G8R8A8_UNORM_SRGB: return DXGI_FORMAT_B8G8R8A8_UNORM;
-            default:                              return fmt;
-        }
-    }
-
-    static void ensure_rtv(ID3D11Device *device,
-                           IDXGISwapChain *swapchain,
-                           ID3D11RenderTargetView **rtv)
-    {
-        if (*rtv || !device || !swapchain) {
-            return;
-        }
-        ID3D11Texture2D *backbuffer = nullptr;
-        if (FAILED(swapchain->GetBuffer(0, IID_PPV_ARGS(&backbuffer))) || !backbuffer) {
-            return;
-        }
-        D3D11_TEXTURE2D_DESC td {};
-        backbuffer->GetDesc(&td);
-        const DXGI_FORMAT view_fmt = to_unorm_view(td.Format);
-        if (view_fmt != td.Format) {
-            D3D11_RENDER_TARGET_VIEW_DESC rtvd {};
-            rtvd.Format = view_fmt;
-            rtvd.ViewDimension = D3D11_RTV_DIMENSION_TEXTURE2D;
-            device->CreateRenderTargetView(backbuffer, &rtvd, rtv);
-        } else {
-            device->CreateRenderTargetView(backbuffer, nullptr, rtv);
-        }
-        backbuffer->Release();
-    }
-
-    // bind the backbuffer (lazily creating the RTV) and draw the imgui
-    // frame on top. reset_invalidate releases *rtv on ResizeBuffers.
-    void render(ID3D11Device *device,
-                ID3D11DeviceContext *context,
-                IDXGISwapChain *swapchain,
-                ID3D11RenderTargetView **rtv)
-    {
-        ensure_rtv(device, swapchain, rtv);
-        if (!*rtv || !context) {
-            return;
-        }
-        // present happens immediately after, so no need to save the previous
-        // RT binding (flip-model resets it anyway).
-        context->OMSetRenderTargets(1, rtv, nullptr);
-        ImGui_ImplDX11_RenderDrawData(ImGui::GetDrawData());
-    }
-
-}
-
-// --------------------------------------------------------------------------
-// file-local state + per-frame helpers
-
-namespace {
-
-using Present_t = HRESULT(STDMETHODCALLTYPE *)(
-        IDXGISwapChain *, UINT, UINT);
-using ResizeBuffers_t = HRESULT(STDMETHODCALLTYPE *)(
-        IDXGISwapChain *, UINT, UINT, UINT, DXGI_FORMAT, UINT);
-using Present1_t = HRESULT(STDMETHODCALLTYPE *)(
-        IDXGISwapChain1 *, UINT, UINT, const DXGI_PRESENT_PARAMETERS *);
-
-Present_t Present_orig = nullptr;
-ResizeBuffers_t ResizeBuffers_orig = nullptr;
-Present1_t Present1_orig = nullptr;
-
-bool g_swapchain_hooked = false;
-bool g_swapchain1_hooked = false;
-
-void try_create_overlay(IDXGISwapChain *swapchain) {
-    if (!swapchain || overlay::OVERLAY) {
-        return;
-    }
-
-    DXGI_SWAP_CHAIN_DESC desc {};
-    if (FAILED(swapchain->GetDesc(&desc)) || !desc.OutputWindow) {
-        return;
-    }
-
-    // only attach to the main game window; ignore sub-screens / IME helpers.
-    HWND main = d3d11_hooks::main_hwnd();
-    if (main && desc.OutputWindow != main) {
-        return;
-    }
-
-    // theme the native title bar; first present is the only reliable point for
-    // windows whose swapchain bypasses our factory hooks (e.g. UnityPlayer.dll)
-    set_window_dark_titlebar(desc.OutputWindow);
-
-    ID3D11Device *device = nullptr;
-    if (FAILED(swapchain->GetDevice(IID_PPV_ARGS(&device))) || !device) {
-        return;
-    }
-    ID3D11DeviceContext *context = nullptr;
-    device->GetImmediateContext(&context);
-
-    if (context) {
-        overlay::create_d3d11(desc.OutputWindow, device, context, swapchain);
-        RECT cr {};
-        ::GetClientRect(desc.OutputWindow, &cr);
-        log_info("graphics::d3d11",
-            "attached overlay to swapchain hwnd=0x{:x} backbuffer={}x{} client={}x{}",
-            (uintptr_t) desc.OutputWindow,
-            desc.BufferDesc.Width, desc.BufferDesc.Height,
-            cr.right - cr.left, cr.bottom - cr.top);
-        context->Release();
-    }
-    device->Release();
-}
-
-// rising-edge screenshot hotkey poll (mirrors d3d9 backend behaviour).
-void poll_screenshot_hotkey() {
-    static bool s_down = false;
-    auto buttons = games::get_buttons_overlay(eamuse_get_game());
-    const bool pressed = buttons
-        && (!overlay::OVERLAY || overlay::OVERLAY->hotkeys_triggered())
-        && GameAPI::Buttons::getState(RI_MGR,
-                buttons->at(games::OverlayButtons::Screenshot));
-    if (pressed && !s_down) {
-        graphics_screenshot_trigger();
-    }
-    s_down = pressed;
-}
-
-void pump_overlay(IDXGISwapChain *swapchain) {
-    if (!overlay::OVERLAY || !overlay::OVERLAY->uses_swapchain(swapchain)) {
-        return;
-    }
-
-    poll_screenshot_hotkey();
-
-    // size imgui to the backbuffer (not window client). dxgi may upscale
-    // a small backbuffer into a larger client rect; without this override
-    // imgui would draw past the RTV and the mouse mapping would be off.
-    DXGI_SWAP_CHAIN_DESC desc {};
-    if (SUCCEEDED(swapchain->GetDesc(&desc))) {
-        ImGui_ImplSpice_SetDisplaySizeOverride(
-            (float) desc.BufferDesc.Width,
-            (float) desc.BufferDesc.Height);
-    }
-
-    overlay::OVERLAY->update();
-    overlay::OVERLAY->new_frame();
-    overlay::OVERLAY->render();
-
-    // after overlay render so toasts/menus end up in the saved image.
-    d3d11_hooks::try_screenshot(swapchain);
-}
-
-// ----------------------------------------------------------------------
-// swapchain method hooks
-
-HRESULT STDMETHODCALLTYPE Present_hook(
-        IDXGISwapChain *swapchain, UINT SyncInterval, UINT Flags)
-{
-    try_create_overlay(swapchain);
-    pump_overlay(swapchain);
-    return Present_orig(swapchain, SyncInterval, Flags);
-}
-
-HRESULT STDMETHODCALLTYPE Present1_hook(
-        IDXGISwapChain1 *swapchain, UINT SyncInterval, UINT Flags,
-        const DXGI_PRESENT_PARAMETERS *pParams)
-{
-    try_create_overlay(swapchain);
-    pump_overlay(swapchain);
-    return Present1_orig(swapchain, SyncInterval, Flags, pParams);
-}
-
-HRESULT STDMETHODCALLTYPE ResizeBuffers_hook(
-        IDXGISwapChain *swapchain, UINT BufferCount, UINT Width, UINT Height,
-        DXGI_FORMAT NewFormat, UINT SwapChainFlags)
-{
-    const bool ours = overlay::OVERLAY && overlay::OVERLAY->uses_swapchain(swapchain);
-    if (ours) {
-        log_info("graphics::d3d11", "ResizeBuffers {}x{} fmt={}",
-            Width, Height, (int32_t) NewFormat);
-        overlay::OVERLAY->reset_invalidate();
-    }
-    HRESULT res = ResizeBuffers_orig(
-        swapchain, BufferCount, Width, Height, NewFormat, SwapChainFlags);
-    if (ours && SUCCEEDED(res)) {
-        overlay::OVERLAY->reset_recreate();
-    }
-    return res;
-}
-
-} // namespace
-
-// --------------------------------------------------------------------------
-// d3d11_hooks public surface: main-window tracking + vtable install.
-
-namespace d3d11_hooks {
-
-namespace {
-    std::atomic<HWND> g_main_hwnd { nullptr };
-    std::atomic<HWND> g_ignored_hwnd { nullptr };
-}
-
-void note_main_hwnd(HWND hwnd) {
-    if (!hwnd || hwnd == g_ignored_hwnd.load()) {
-        return;
-    }
-    HWND expected = nullptr;
-    if (g_main_hwnd.compare_exchange_strong(expected, hwnd)) {
-        log_info("graphics::d3d11", "main hwnd recorded: 0x{:x}",
-            (uintptr_t) hwnd);
-    }
-}
-
-HWND main_hwnd() {
-    return g_main_hwnd.load();
-}
-
-void ignore_hwnd(HWND hwnd) {
-    g_ignored_hwnd.store(hwnd);
-}
-
-// patch IDXGISwapChain::Present + ResizeBuffers and (if implemented)
-// IDXGISwapChain1::Present1. idempotent; flag is set only after success
-// so failed attempts can be retried on the next swapchain.
-void install_swapchain_hooks(IDXGISwapChain *swapchain) {
-    if (!swapchain) {
-        return;
-    }
-    static std::mutex s_hook_mutex;
-    std::lock_guard<std::mutex> lock(s_hook_mutex);
-
-    if (!g_swapchain_hooked) {
-        const bool a = hook_vtbl(swapchain, 8,  (void *) Present_hook,
-                  (void **) &Present_orig,       "IDXGISwapChain::Present");
-        const bool b = hook_vtbl(swapchain, 13, (void *) ResizeBuffers_hook,
-                  (void **) &ResizeBuffers_orig, "IDXGISwapChain::ResizeBuffers");
-        if (a && b) {
-            g_swapchain_hooked = true;
-        }
-    }
-
-    if (!g_swapchain1_hooked) {
-        IDXGISwapChain1 *sc1 = nullptr;
-        if (SUCCEEDED(swapchain->QueryInterface(IID_PPV_ARGS(&sc1))) && sc1) {
-            if (hook_vtbl(sc1, 22, (void *) Present1_hook,
-                          (void **) &Present1_orig, "IDXGISwapChain1::Present1")) {
-                g_swapchain1_hooked = true;
-            }
-            sc1->Release();
-        }
-    }
-}
-
-}
-
-#endif // SPICE_D3D11
+// dx11 swapchain vtable hooks + per-frame overlay pump.
+//
+// dxgi shares vtables across swapchain instances, so we only need to patch
+// Present / Present1 / ResizeBuffers once on the first instance we see.
+// each frame we lazily attach the overlay to whichever swapchain is
+// presenting, then drive its imgui update / new_frame / render cycle.
+
+#include "d3d11_backend.h"
+
+#ifdef SPICE_D3D11
+
+#include <atomic>
+#include <mutex>
+
+#include <windows.h>
+#include <d3d11.h>
+#include <dxgi.h>
+#include <dxgi1_2.h>
+
+#include "d3d11_internal.h"
+
+#include "external/imgui/imgui.h"
+#include "external/imgui/backends/imgui_impl_dx11.h"
+#include "overlay/imgui/impl_spice.h"
+
+#include "hooks/graphics/graphics.h"
+#include "util/utils.h"
+
+// --------------------------------------------------------------------------
+// overlay render bridge
+
+namespace overlay::d3d11 {
+
+    // sRGB backbuffers need a UNORM view: ImGui vertex colors are already
+    // sRGB-encoded, so an extra linear->sRGB conversion would wash the
+    // overlay out white.
+    static DXGI_FORMAT to_unorm_view(DXGI_FORMAT fmt) {
+        switch (fmt) {
+            case DXGI_FORMAT_R8G8B8A8_UNORM_SRGB: return DXGI_FORMAT_R8G8B8A8_UNORM;
+            case DXGI_FORMAT_B8G8R8A8_UNORM_SRGB: return DXGI_FORMAT_B8G8R8A8_UNORM;
+            default:                              return fmt;
+        }
+    }
+
+    static void ensure_rtv(ID3D11Device *device,
+                           IDXGISwapChain *swapchain,
+                           ID3D11RenderTargetView **rtv)
+    {
+        if (*rtv || !device || !swapchain) {
+            return;
+        }
+        ID3D11Texture2D *backbuffer = nullptr;
+        if (FAILED(swapchain->GetBuffer(0, IID_PPV_ARGS(&backbuffer))) || !backbuffer) {
+            return;
+        }
+        D3D11_TEXTURE2D_DESC td {};
+        backbuffer->GetDesc(&td);
+        const DXGI_FORMAT view_fmt = to_unorm_view(td.Format);
+        if (view_fmt != td.Format) {
+            D3D11_RENDER_TARGET_VIEW_DESC rtvd {};
+            rtvd.Format = view_fmt;
+            rtvd.ViewDimension = D3D11_RTV_DIMENSION_TEXTURE2D;
+            device->CreateRenderTargetView(backbuffer, &rtvd, rtv);
+        } else {
+            device->CreateRenderTargetView(backbuffer, nullptr, rtv);
+        }
+        backbuffer->Release();
+    }
+
+    // bind the backbuffer (lazily creating the RTV) and draw the imgui
+    // frame on top. reset_invalidate releases *rtv on ResizeBuffers.
+    void render(ID3D11Device *device,
+                ID3D11DeviceContext *context,
+                IDXGISwapChain *swapchain,
+                ID3D11RenderTargetView **rtv)
+    {
+        ensure_rtv(device, swapchain, rtv);
+        if (!*rtv || !context) {
+            return;
+        }
+        // present happens immediately after, so no need to save the previous
+        // RT binding (flip-model resets it anyway).
+        context->OMSetRenderTargets(1, rtv, nullptr);
+        ImGui_ImplDX11_RenderDrawData(ImGui::GetDrawData());
+    }
+
+}
+
+// --------------------------------------------------------------------------
+// file-local state + per-frame helpers
+
+namespace {
+
+using Present_t = HRESULT(STDMETHODCALLTYPE *)(
+        IDXGISwapChain *, UINT, UINT);
+using ResizeBuffers_t = HRESULT(STDMETHODCALLTYPE *)(
+        IDXGISwapChain *, UINT, UINT, UINT, DXGI_FORMAT, UINT);
+using Present1_t = HRESULT(STDMETHODCALLTYPE *)(
+        IDXGISwapChain1 *, UINT, UINT, const DXGI_PRESENT_PARAMETERS *);
+
+Present_t Present_orig = nullptr;
+ResizeBuffers_t ResizeBuffers_orig = nullptr;
+Present1_t Present1_orig = nullptr;
+
+bool g_swapchain_hooked = false;
+bool g_swapchain1_hooked = false;
+
+// sub-screens / IME helpers are usually child or zero-sized windows.
+// visibility isn't checked - the game may present before showing the window.
+bool looks_like_game_window(HWND hwnd) {
+    RECT client {};
+    return GetAncestor(hwnd, GA_ROOT) == hwnd
+        && GetClientRect(hwnd, &client)
+        && client.right > client.left
+        && client.bottom > client.top;
+}
+
+// only the main game window; ignore sub-screens / IME helpers.
+bool is_main_game_swapchain(IDXGISwapChain *swapchain) {
+    DXGI_SWAP_CHAIN_DESC desc {};
+    if (!swapchain || FAILED(swapchain->GetDesc(&desc)) || !desc.OutputWindow) {
+        return false;
+    }
+
+    HWND main = d3d11_hooks::main_hwnd();
+    if (!main) {
+        // no creation hook recorded a window, so fall back to the presenting one;
+        // the choice is permanent, so require a plausible game window
+        if (!looks_like_game_window(desc.OutputWindow)) {
+            return false;
+        }
+
+        log_misc(
+            "graphics::d3d11",
+            "try to notemain hwnd from swapchain present: 0x{:x}",
+            (uintptr_t)desc.OutputWindow);
+
+        d3d11_hooks::note_main_hwnd(desc.OutputWindow);
+
+        // it may have been ignored, or another thread may have won the slot
+        main = d3d11_hooks::main_hwnd();
+    }
+    return desc.OutputWindow == main;
+}
+
+// checks are ordered cheapest first, since this runs on every present
+void try_create_overlay(IDXGISwapChain *swapchain) {
+    if (!swapchain) {
+        return;
+    }
+
+    // overlay is disabled by user
+    if (!overlay::ENABLED) {
+        return;
+    }
+
+    // overlay is already enabled and attached
+    if (overlay::OVERLAY) {
+        return;
+    }
+
+    // ignore sub windows
+    if (!is_main_game_swapchain(swapchain)) {
+        return;
+    }
+
+    DXGI_SWAP_CHAIN_DESC desc {};
+    if (FAILED(swapchain->GetDesc(&desc)) || !desc.OutputWindow) {
+        return;
+    }
+
+    // theme the native title bar; first present is the only reliable point for
+    // windows whose swapchain bypasses our factory hooks (e.g. UnityPlayer.dll)
+    set_window_dark_titlebar(desc.OutputWindow);
+
+    ID3D11Device *device = nullptr;
+    if (FAILED(swapchain->GetDevice(IID_PPV_ARGS(&device))) || !device) {
+        return;
+    }
+    ID3D11DeviceContext *context = nullptr;
+    device->GetImmediateContext(&context);
+
+    if (context) {
+        overlay::create_d3d11(desc.OutputWindow, device, context, swapchain);
+        RECT cr {};
+        ::GetClientRect(desc.OutputWindow, &cr);
+        log_info("graphics::d3d11",
+            "attached overlay to swapchain hwnd=0x{:x} backbuffer={}x{} client={}x{}",
+            (uintptr_t) desc.OutputWindow,
+            desc.BufferDesc.Width, desc.BufferDesc.Height,
+            cr.right - cr.left, cr.bottom - cr.top);
+        context->Release();
+    }
+    device->Release();
+}
+
+// screenshots have to keep working with the overlay disabled, so they are not gated on it
+void pump_frame(IDXGISwapChain *swapchain) {
+    const bool has_overlay =
+        overlay::OVERLAY && overlay::OVERLAY->uses_swapchain(swapchain);
+    if (!has_overlay && !is_main_game_swapchain(swapchain)) {
+        return;
+    }
+
+    graphics_poll_screenshot_hotkey();
+
+    // before the overlay render so the screenshot excludes it
+    if (!GRAPHICS_SCREENSHOT_INCLUDE_OVERLAY) {
+        d3d11_hooks::try_screenshot(swapchain);
+    }
+
+    if (has_overlay) {
+
+        // size imgui to the backbuffer (not window client). dxgi may upscale
+        // a small backbuffer into a larger client rect; without this override
+        // imgui would draw past the RTV and the mouse mapping would be off.
+        DXGI_SWAP_CHAIN_DESC desc {};
+        if (SUCCEEDED(swapchain->GetDesc(&desc))) {
+            ImGui_ImplSpice_SetDisplaySizeOverride(
+                (float) desc.BufferDesc.Width,
+                (float) desc.BufferDesc.Height);
+        }
+
+        overlay::OVERLAY->update();
+        overlay::OVERLAY->new_frame();
+        overlay::OVERLAY->render();
+    }
+
+    // after the overlay render so the screenshot includes toasts / menus
+    if (GRAPHICS_SCREENSHOT_INCLUDE_OVERLAY) {
+        d3d11_hooks::try_screenshot(swapchain);
+    }
+}
+
+// ----------------------------------------------------------------------
+// swapchain method hooks
+
+HRESULT STDMETHODCALLTYPE Present_hook(
+        IDXGISwapChain *swapchain, UINT SyncInterval, UINT Flags)
+{
+    // a test present doesn't display anything; don't pick a window or take a screenshot off it
+    if (!(Flags & DXGI_PRESENT_TEST)) {
+        try_create_overlay(swapchain);
+        pump_frame(swapchain);
+    }
+    return Present_orig(swapchain, SyncInterval, Flags);
+}
+
+HRESULT STDMETHODCALLTYPE Present1_hook(
+        IDXGISwapChain1 *swapchain, UINT SyncInterval, UINT Flags,
+        const DXGI_PRESENT_PARAMETERS *pParams)
+{
+    if (!(Flags & DXGI_PRESENT_TEST)) {
+        try_create_overlay(swapchain);
+        pump_frame(swapchain);
+    }
+    return Present1_orig(swapchain, SyncInterval, Flags, pParams);
+}
+
+HRESULT STDMETHODCALLTYPE ResizeBuffers_hook(
+        IDXGISwapChain *swapchain, UINT BufferCount, UINT Width, UINT Height,
+        DXGI_FORMAT NewFormat, UINT SwapChainFlags)
+{
+    const bool ours = overlay::OVERLAY && overlay::OVERLAY->uses_swapchain(swapchain);
+    if (ours) {
+        log_info("graphics::d3d11", "ResizeBuffers {}x{} fmt={}",
+            Width, Height, (int32_t) NewFormat);
+        overlay::OVERLAY->reset_invalidate();
+    }
+    HRESULT res = ResizeBuffers_orig(
+        swapchain, BufferCount, Width, Height, NewFormat, SwapChainFlags);
+    if (ours && SUCCEEDED(res)) {
+        overlay::OVERLAY->reset_recreate();
+    }
+    return res;
+}
+
+} // namespace
+
+// --------------------------------------------------------------------------
+// d3d11_hooks public surface: main-window tracking + vtable install.
+
+namespace d3d11_hooks {
+
+namespace {
+    std::atomic<HWND> g_main_hwnd { nullptr };
+    std::atomic<HWND> g_ignored_hwnd { nullptr };
+}
+
+void note_main_hwnd(HWND hwnd) {
+    if (!hwnd || hwnd == g_ignored_hwnd.load()) {
+        return;
+    }
+    HWND expected = nullptr;
+    if (g_main_hwnd.compare_exchange_strong(expected, hwnd)) {
+        log_info("graphics::d3d11", "main hwnd recorded: 0x{:x}",
+            (uintptr_t) hwnd);
+    }
+}
+
+HWND main_hwnd() {
+    return g_main_hwnd.load();
+}
+
+void ignore_hwnd(HWND hwnd) {
+    g_ignored_hwnd.store(hwnd);
+}
+
+// patch IDXGISwapChain::Present + ResizeBuffers and (if implemented)
+// IDXGISwapChain1::Present1. idempotent; flag is set only after success
+// so failed attempts can be retried on the next swapchain.
+void install_swapchain_hooks(IDXGISwapChain *swapchain) {
+    if (!swapchain) {
+        return;
+    }
+    static std::mutex s_hook_mutex;
+    std::lock_guard<std::mutex> lock(s_hook_mutex);
+
+    if (!g_swapchain_hooked) {
+        const bool a = hook_vtbl(swapchain, 8,  (void *) Present_hook,
+                  (void **) &Present_orig,       "IDXGISwapChain::Present");
+        const bool b = hook_vtbl(swapchain, 13, (void *) ResizeBuffers_hook,
+                  (void **) &ResizeBuffers_orig, "IDXGISwapChain::ResizeBuffers");
+        if (a && b) {
+            g_swapchain_hooked = true;
+        }
+    }
+
+    if (!g_swapchain1_hooked) {
+        IDXGISwapChain1 *sc1 = nullptr;
+        if (SUCCEEDED(swapchain->QueryInterface(IID_PPV_ARGS(&sc1))) && sc1) {
+            if (hook_vtbl(sc1, 22, (void *) Present1_hook,
+                          (void **) &Present1_orig, "IDXGISwapChain1::Present1")) {
+                g_swapchain1_hooked = true;
+            }
+            sc1->Release();
+        }
+    }
+}
+
+}
+
+#endif // SPICE_D3D11
--- a/Show More
+++ b/Show More