misc: various performance clean up (#844)

## Link to GitHub Issue or related Pull Request, if one exists
n/a

## Description of change

- Replace unnecessary precision timers with standard sleeps to reduce
wakeups and background CPU usage.
- Reuse buffers in raw input, touchscreen, and HID output paths to
eliminate steady-state allocations.
- Pre-index HID button groups and correctly process batched HID reports.

No functional changes.

## Testing

.github/workflows/ci.yml

@@ -12,12 +12,12 @@ jobs:
       run:
         working-directory: ./src/spice2x
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set ccache environment variables
         run: |
           echo "CCACHE_DIR=${{ github.workspace }}/src/spice2x/.ccache" >> $GITHUB_ENV
       - name: Install ccache
-        uses: hendrikmuhs/ccache-action@v1.2
+        uses: hendrikmuhs/ccache-action@v1.2.23
       - name: Calculate commit SHA
         id: vars
         run: |
@@ -25,7 +25,7 @@ jobs:
           echo "COMMIT_SHORT_SHA=$calculatedSha" >> $GITHUB_ENV
       - name: Compile
         run: ./build_docker.sh
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v6
         with:
           name: spice2x-ci-${{ env.COMMIT_SHORT_SHA }}
           path: src/spice2x/bin

.github/workflows/release.yml

@@ -0,0 +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

CONTRIBUTING.md

@@ -11,13 +11,17 @@ To contribute, fork the repo (just the main branch), make changes in your fork,
 * For a new game that was never supported (not a new version of a game, but rather a new series): please wait 1 year after official AC release in Japan.
 * For new version of an already supported game: proceed with caution and use generally-accepted community guidelines.
 
-### Forbidden "features" that will never be accepted
+### Pull requests that will not be accepted
 
-* Performing decryption of encrypted files
-* Including (bundling), distributing, or linking to game data, or making it easier to find/download game data
+* Performing decryption of encrypted files.
+* Including (bundling), distributing, or linking to game data, or making it easier to find/download game data.
 * Any features that [phone home](https://en.wikipedia.org/wiki/Phoning_home)
   * This includes automatic updaters.
   * Exception: we have allowed the "patch import from URL" feature, but this has only been done under very careful considerations and plenty of warnings to the user.
+* Built-in EA server that saves data. They should live in a separate project.
+* Any additions to built-in patches (modifications / removals are OK if we have a good reason).
+* Changes to the software license terms.
+* Localization / translation for UI text. It becomes too difficult to manage by the maintainers.
 
 ### Avoiding regressions
 

src/spice2x/CMakeLists.txt

@@ -412,10 +412,12 @@ set(SOURCE_FILES ${SOURCE_FILES}
         games/sdvx/io.cpp
         games/sdvx/camera.cpp
         games/jb/jb.cpp
+        games/jb/jb_touch.cpp
         games/jb/io.cpp
         games/nost/nost.cpp
         games/nost/io.cpp
         games/nost/poke.cpp
+        games/nost/touch_mode.cpp
         games/gitadora/gitadora.cpp
         games/gitadora/asio.cpp
         games/gitadora/io.cpp
@@ -431,6 +433,7 @@ set(SOURCE_FILES ${SOURCE_FILES}
         games/rb/rb.cpp
         games/rb/io.cpp
         games/rb/touch.cpp
+        games/rb/touch_debug.cpp
         games/bs/bs.cpp
         games/bs/io.cpp
         games/rf3d/rf3d.cpp
@@ -500,6 +503,7 @@ set(SOURCE_FILES ${SOURCE_FILES}
         hooks/audio/buffer.cpp
         hooks/audio/mme.cpp
         hooks/audio/util.cpp
+        hooks/audio/xact.cpp
         hooks/audio/backends/dsound/dsound_backend.cpp
         hooks/audio/backends/mmdevice/audio_endpoint_volume.cpp
         hooks/audio/backends/mmdevice/device.cpp
@@ -526,6 +530,7 @@ set(SOURCE_FILES ${SOURCE_FILES}
         hooks/devicehook.cpp
         hooks/graphics/graphics.cpp
         hooks/graphics/graphics_windowed.cpp
+        hooks/graphics/nvapi_impl.cpp
         hooks/graphics/nvapi_hook.cpp
         hooks/graphics/nvenc_hook.cpp
         hooks/graphics/backends/d3d9/d3d9_backend.cpp
@@ -569,7 +574,6 @@ set(SOURCE_FILES ${SOURCE_FILES}
         misc/device.cpp
         misc/eamuse.cpp
         misc/extdev.cpp
-        misc/nativetouchhook.cpp
         misc/sciunit.cpp
         misc/sde.cpp
         misc/wintouchemu.cpp
@@ -607,17 +611,27 @@ set(SOURCE_FILES ${SOURCE_FILES}
         overlay/windows/keypad.cpp
         overlay/windows/log.cpp
         overlay/windows/midi.cpp
+        overlay/windows/nostalgia_touch_piano.cpp
         overlay/windows/obs.cpp
         overlay/windows/obs_websocket.cpp
         overlay/windows/patch_manager.cpp
         overlay/windows/popn_sub.cpp
         overlay/windows/wnd_manager.cpp
 
+        # patcher
+        patcher/config.cpp
+        patcher/lifecycle.cpp
+        patcher/loader.cpp
+        patcher/loader_group.cpp
+        patcher/runtime.cpp
+
         # external
         external/easywsclient/easywsclient.cpp
 
         # rawinput
         rawinput/rawinput.cpp
+        rawinput/rawinput_handles.cpp
+        rawinput/midi.cpp
         rawinput/sextet.cpp
         rawinput/piuio.cpp
         rawinput/touch.cpp
@@ -644,8 +658,14 @@ set(SOURCE_FILES ${SOURCE_FILES}
         stubs/stubs.cpp
 
         # touch
+        touch/gdi_overlay.cpp
+        touch/native/inject.cpp
+        touch/native/inject_mouse.cpp
+        touch/native/inject_synthetic.cpp
+        touch/native/nativetouchhook.cpp
+        touch/native/transform.cpp
         touch/touch.cpp
-        touch/touch_indicators.cpp
+        touch/touch_gestures.cpp
         touch/win7.cpp
         touch/win8.cpp
 

src/spice2x/acio/core/core.cpp

@@ -4,6 +4,7 @@
 #include "launcher/launcher.h"
 #include "misc/wintouchemu.h"
 #include "rawinput/rawinput.h"
+#include "touch/native/nativetouchhook.h"
 
 // static stuff
 static int ACIO_WARMUP = 0;
@@ -140,8 +141,9 @@ static int __cdecl ac_io_update(int a1) {
     // flush device output
     RI_MGR->devices_flush_output();
 
-    // update wintouchemu
+    // update touch emulation
     wintouchemu::update();
+    nativetouch::refresh_contact_lifetime();
 
     return 1;
 }

src/spice2x/acio/panb/panb.cpp

@@ -3,6 +3,7 @@
 #include "rawinput/rawinput.h"
 #include "games/nost/io.h"
 #include "games/nost/nost.h"
+#include "games/nost/touch_mode.h"
 #include "util/logging.h"
 #include "avs/game.h"
 
@@ -16,6 +17,7 @@ using namespace GameAPI;
 // static stuff
 static uint8_t STATUS_BUFFER[277];
 static bool STATUS_BUFFER_FREEZE = false;
+static constexpr uint8_t NOST_TOUCH_PIANO_VELOCITY = 11;
 
 /*
  * Implementations
@@ -226,6 +228,8 @@ static bool __cdecl ac_io_panb_update_control_status_buffer() {
                 games::nost::Analogs::Key27, games::nost::Analogs::Key28,
         };
 
+        const auto touch_key_state = games::nost::touch_mode::piano_key_state();
+
         // iterate pairs of keys
         for (size_t key_pair = 0; key_pair < 28 / 2; key_pair++) {
 
@@ -257,6 +261,10 @@ static bool __cdecl ac_io_panb_update_control_status_buffer() {
             if (button0 > 0) {
                 state0 = button0;
             }
+            if ((touch_key_state & (UINT32_C(1) << (key_pair * 2))) &&
+                state0 < NOST_TOUCH_PIANO_VELOCITY) {
+                state0 = NOST_TOUCH_PIANO_VELOCITY;
+            }
 
             const auto button1 = panb_get_button_velocity(
                 buttons.at(button_mapping[key_pair * 2 + 1]),
@@ -267,6 +275,10 @@ static bool __cdecl ac_io_panb_update_control_status_buffer() {
             if (button1 > 0) {
                 state1 = button1;
             }
+            if ((touch_key_state & (UINT32_C(1) << (key_pair * 2 + 1))) &&
+                state1 < NOST_TOUCH_PIANO_VELOCITY) {
+                state1 = NOST_TOUCH_PIANO_VELOCITY;
+            }
 
             // build value
             uint8_t value = 0;

src/spice2x/api/modules/keypads.cpp

@@ -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));
         }
     }
 

src/spice2x/api/modules/touch.cpp

@@ -1,5 +1,7 @@
 #include "touch.h"
 
+#include <algorithm>
+#include <cstdint>
 #include <functional>
 
 #include "external/rapidjson/document.h"
@@ -8,6 +10,8 @@
 #include "misc/eamuse.h"
 #include "launcher/launcher.h"
 #include "touch/touch.h"
+#include "touch/native/inject.h"
+#include "touch/native/nativetouchhook.h"
 #include "util/utils.h"
 #include "games/iidx/iidx.h"
 
@@ -17,6 +21,25 @@ using namespace rapidjson;
 
 namespace api::modules {
 
+    static bool inject_native_touch(
+            const std::vector<TouchPoint> &touch_points, int canvas_w, int canvas_h) {
+        if (touch_points.empty()) {
+            // no active touches remain; release the synthetic contact
+            return nativetouch::inject::inject_synthetic_touch({ 0, 0 }, false);
+        }
+
+        // only a single synthetic contact is supported, so just use the first touch point
+        const auto &touch = touch_points.front();
+        POINT position { touch.x, touch.y };
+        if (canvas_w > 0 && canvas_h > 0) {
+            return nativetouch::inject::inject_synthetic_touch_from_canvas(
+                position,
+                { canvas_w, canvas_h },
+                true);
+        }
+        return nativetouch::inject::inject_synthetic_touch(position, true);
+    }
+
     Touch::Touch() : Module("touch") {
         is_sdvx = avs::game::is_model("KFC");
 
@@ -26,6 +49,25 @@ namespace api::modules {
             is_tdj_fhd = false;
         }
 
+        use_native = nativetouch::is_hooked();
+
+        // resolution the API/companion sends native touch coordinates in (after errata)
+        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;
+        } 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;
+            native_canvas_h = is_tdj_fhd ? 1080 : 720;
+        } else if (avs::game::is_model("M39")) {
+            // pop'n music API touch surface
+            native_canvas_w = 1280;
+            native_canvas_h = 800;
+        }
+
         functions["read"] = std::bind(&Touch::read, this, _1, _2);
         functions["write"] = std::bind(&Touch::write, this, _1, _2);
         functions["write_reset"] = std::bind(&Touch::write_reset, this, _1, _2);
@@ -99,7 +141,11 @@ namespace api::modules {
         }
 
         // apply touch points
-        touch_write_points(&touch_points);
+        if (use_native) {
+            write_native(touch_points);
+        } else {
+            touch_write_points(&touch_points);
+        }
     }
 
     /**
@@ -123,7 +169,43 @@ namespace api::modules {
         }
 
         // remove all IDs
-        touch_remove_points(&touch_point_ids);
+        if (use_native) {
+            write_reset_native(touch_point_ids);
+        } else {
+            touch_remove_points(&touch_point_ids);
+        }
+    }
+
+    void Touch::write_native(const std::vector<TouchPoint> &touch_points) {
+        if (touch_points.empty()) {
+            return;
+        }
+
+        std::lock_guard<std::mutex> lock(native_touch_mutex);
+        const auto touch_id = touch_points.front().id;
+        if (native_touch_id && *native_touch_id != touch_id) {
+            if (!inject_native_touch({}, native_canvas_w, native_canvas_h)) {
+                return;
+            }
+            native_touch_id.reset();
+        }
+        if (inject_native_touch(touch_points, native_canvas_w, native_canvas_h)) {
+            native_touch_id = touch_id;
+        }
+    }
+
+    void Touch::write_reset_native(const std::vector<DWORD> &touch_point_ids) {
+        std::lock_guard<std::mutex> lock(native_touch_mutex);
+        if (!native_touch_id ||
+                std::find(
+                    touch_point_ids.begin(),
+                    touch_point_ids.end(),
+                    *native_touch_id) == touch_point_ids.end()) {
+            return;
+        }
+        if (inject_native_touch({}, native_canvas_w, native_canvas_h)) {
+            native_touch_id.reset();
+        }
     }
 
     void Touch::apply_touch_errata(int &x, int &y) {

src/spice2x/api/modules/touch.h

@@ -1,8 +1,12 @@
 #pragma once
 
+#include <cstdint>
+#include <mutex>
+#include <optional>
 #include <vector>
 #include "api/module.h"
 #include "api/request.h"
+#include "touch/touch.h"
 
 namespace api::modules {
 
@@ -13,11 +17,21 @@ namespace api::modules {
     private:
         bool is_sdvx;
         bool is_tdj_fhd;
+        bool use_native;
+        std::mutex native_touch_mutex;
+        std::optional<uint32_t> native_touch_id;
+
+        // resolution the API/companion sends native touch coordinates in (after errata);
+        // used to normalize before mapping into the native injection window
+        int native_canvas_w;
+        int native_canvas_h;
 
         // function definitions
         void read(Request &req, Response &res);
         void write(Request &req, Response &res);
         void write_reset(Request &req, Response &res);
+        void write_native(const std::vector<TouchPoint> &touch_points);
+        void write_reset_native(const std::vector<DWORD> &touch_point_ids);
         void apply_touch_errata(int &x, int &y);
 
     };

src/spice2x/api/serial.cpp

@@ -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));
                 }
             }
         });

src/spice2x/avs/core.cpp

@@ -1924,7 +1924,7 @@ 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");
             }

src/spice2x/build_all.sh

@@ -214,6 +214,19 @@ time (
 	echo "==========================="
 )
 
+echo ""
+echo "Checking Win7 compatibility..."
+echo "============================="
+if ! command -v windows_dll_compat_checker &> /dev/null; then
+	echo "WARNING: windows_dll_compat_checker not found, skipping Win7 compatibility check"
+else
+	windows_dll_compat_checker -s PREMADE/konami_win7_museca_x86_64.ini \
+		${BUILDDIR_64}/spicetools/64/spice64.exe
+	windows_dll_compat_checker -s PREMADE/konami_win7_museca_x86_64_32bit_dlls.ini \
+		${BUILDDIR_32}/spicetools/spicecfg.exe \
+		${BUILDDIR_32}/spicetools/32/spice.exe
+fi
+
 if ((BUILD_XP_32 > 0)) || ((BUILD_XP_64 > 0))
 then
 	echo ""
@@ -229,7 +242,7 @@ then
 		fi
 		if ((BUILD_XP_32 > 0))
 		then
-			windows_dll_compat_checker -s PREMADE/winxp_x86_64_32bit_dlls.ini \
+			windows_dll_compat_checker -s PREMADE/konami_winxp_jubeat_i686.ini \
 				${BUILDDIR_WINXP_32}/spicetools/spicecfg.exe \
 				${BUILDDIR_WINXP_32}/spicetools/32/spice.exe
 		fi
@@ -294,6 +307,7 @@ mkdir -p ${OUTDIR_EXTRAS}/largeaddressaware
 mkdir -p ${OUTDIR_EXTRAS}/linux
 mkdir -p ${OUTDIR_EXTRAS}/sdk/samples/32
 mkdir -p ${OUTDIR_EXTRAS}/sdk/samples/64
+mkdir -p ${OUTDIR_EXTRAS}/updater
 if ((BUILD_XP_32 > 0)) || ((BUILD_XP_64 > 0))
 then
 mkdir -p ${OUTDIR_EXTRAS}/winxp
@@ -354,6 +368,9 @@ mkdir ${OUTDIR_EXTRAS}/api
 find ./api/resources/python -name "__pycache__" -exec rm -rf {} +
 cp -r ./api/resources/* ${OUTDIR_EXTRAS}/api
 
+# generate the standalone updater scripts from the shared template and drop them
+bash ./build_updaters.sh ${OUTDIR_EXTRAS}/updater
+
 # build distribution archive
 if ((DIST_ENABLE > 0))
 then

src/spice2x/build_updaters.sh

@@ -0,0 +1,57 @@
+#!/usr/bin/env bash
+
+# builds the standalone updater scripts from the shared PowerShell logic in
+# update_spice.ps1. each output is a self-contained polyglot .bat: a small batch
+# header (with the release channel baked in) followed by the shared PowerShell
+# body after the marker line.
+#
+# usage: build_updaters.sh OUT_DIR
+#   OUT_DIR  directory to write the generated .bat files into
+
+set -eu
+
+if [ $# -lt 1 ]; then
+	echo "usage: build_updaters.sh OUT_DIR" >&2
+	exit 1
+fi
+
+SRC_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+PS_BODY="${SRC_DIR}/update_spice.ps1"
+OUT_DIR="$1"
+
+[ -f "$PS_BODY" ] || { echo "error: $PS_BODY not found" >&2; exit 1; }
+
+MARKER='#___PS___'
+
+gen() {
+	channel="$1"; label="$2"; out="$3"
+	{
+		cat <<HEADER
+@echo off
+setlocal
+REM ============================================================================
+REM  spice2x updater  -  updates spice.exe, spice64.exe and spicecfg.exe in
+REM  this folder to the latest spice2x release from GitHub.
+REM
+REM  release channel: ${label}
+REM  make sure spice/spicecfg are NOT running before updating.
+REM ============================================================================
+
+REM expose the script folder + channel to the embedded PowerShell, then run the
+REM PowerShell part: re-read this file and execute everything after the marker.
+set "SPICE_DIR=%~dp0"
+set "SPICE_CHANNEL=${channel}"
+powershell -NoProfile -ExecutionPolicy Bypass -Command "\$m='#___'+'PS'+'___'; \$code=((Get-Content -LiteralPath '%~f0' -Raw) -split \$m)[-1]; Invoke-Expression \$code"
+set "RC=%ERRORLEVEL%"
+endlocal & exit /b %RC%
+
+${MARKER}
+HEADER
+		cat "$PS_BODY"
+	} | sed -e 's/\r$//' -e 's/$/\r/' > "${OUT_DIR}/${out}"
+	echo "  generated ${OUT_DIR}/${out}"
+}
+
+echo "Generating updater scripts from $(basename "$PS_BODY")..."
+gen "" "stable (pre-releases excluded)" "update_spice.bat"
+gen "beta" "beta (newest, pre-releases included)" "update_spice_beta.bat"

src/spice2x/cfg/api.cpp

@@ -3,7 +3,9 @@
 #include <cassert>
 #include <optional>
 
+#include "games/io.h"
 #include "launcher/superexit.h"
+#include "misc/eamuse.h"
 #include "rawinput/rawinput.h"
 #include "rawinput/piuio.h"
 #include "util/time.h"
@@ -62,7 +64,43 @@ std::vector<Button> GameAPI::Buttons::sortButtons(
     return sorted;
 }
 
-GameAPI::Buttons::State GameAPI::Buttons::getState(rawinput::RawInputManager *manager, Button &_button, bool check_alts) {
+namespace GameAPI::Buttons {
+    static State get_button_state(
+        rawinput::RawInputManager *manager,
+        Button &button,
+        bool check_alts,
+        bool check_modifiers);
+
+    static bool modifiers_pressed(rawinput::RawInputManager *manager, Button &button);
+}
+
+bool GameAPI::Buttons::modifiers_pressed(rawinput::RawInputManager *manager, Button &button) {
+    const auto modifier_mask = button.getModifierMask();
+    if (modifier_mask == 0) {
+        return true;
+    }
+
+    auto *modifier_buttons = games::get_buttons_modifiers(eamuse_get_game());
+    if (!modifier_buttons) {
+        return false;
+    }
+
+    for (uint8_t index = 0; index < games::ModifierButtons::Size; index++) {
+        if ((modifier_mask & (UINT8_C(1) << index)) != 0 &&
+            (index >= modifier_buttons->size() ||
+             get_button_state(manager, modifier_buttons->at(index), true, false) !=
+                 GameAPI::Buttons::BUTTON_PRESSED)) {
+            return false;
+        }
+    }
+    return true;
+}
+
+GameAPI::Buttons::State GameAPI::Buttons::get_button_state(
+        rawinput::RawInputManager *manager,
+        Button &_button,
+        bool check_alts,
+        bool check_modifiers) {
 
     // check override
     if (_button.override_enabled) {
@@ -76,6 +114,23 @@ GameAPI::Buttons::State GameAPI::Buttons::getState(rawinput::RawInputManager *ma
     std::optional<bool> window_has_focus;
     while (true) {
 
+        // skip bindings whose required modifiers are not held
+        //
+        // note that modifiers cannot process MIDI as the logic is written
+        // below, since MIDI buttons are event-based (on event, off event, etc)
+        // and cannot be correctly handled by a simple early return
+        // there is no explicit check for MIDI here, but the UI should have
+        // prevented it
+        if (check_modifiers && !modifiers_pressed(manager, *current_button)) {
+            button_count++;
+            if (!alternatives || alternatives->empty() ||
+                button_count - 1 >= alternatives->size()) {
+                return BUTTON_NOT_PRESSED;
+            }
+            current_button = &alternatives->at(button_count - 1);
+            continue;
+        }
+
         // naive behavior
         if (current_button->isNaive()) {
             GameAPI::Buttons::State state;
@@ -411,6 +466,12 @@ GameAPI::Buttons::State GameAPI::Buttons::getState(rawinput::RawInputManager *ma
                         BUTTON_PRESSED : BUTTON_NOT_PRESSED;
                     break;
                 }
+                case rawinput::DESTROYED:
+                    // device was unplugged. release the button instead of leaving
+                    // state at getLastState(), which would latch a held button on
+                    // forever (e.g. a MIDI note held while the device is removed)
+                    state = BUTTON_NOT_PRESSED;
+                    break;
                 default:
                     break;
             }
@@ -463,6 +524,10 @@ GameAPI::Buttons::State GameAPI::Buttons::getState(rawinput::RawInputManager *ma
     }
 }
 
+Buttons::State Buttons::getState(rawinput::RawInputManager *manager, Button &button, bool check_alts) {
+    return get_button_state(manager, button, check_alts, true);
+}
+
 Buttons::State Buttons::getState(std::unique_ptr<rawinput::RawInputManager> &manager, Button &button, bool check_alts) {
     if (manager) {
         return getState(manager.get(), button, check_alts);
@@ -478,17 +543,13 @@ static float getVelocityHelper(rawinput::RawInputManager *manager, Button &butto
         return button.override_velocity;
     }
 
-    // naive behavior
-    if (button.isNaive()) {
-        if (button.getInvert()) {
-            return (GetAsyncKeyState(button.getVKey()) & 0x8000) ? 0.f : 1.f;
-        } else {
-            return (GetAsyncKeyState(button.getVKey()) & 0x8000) ? 1.f : 0.f;
-        }
-    }
-
     // get button state
-    Buttons::State button_state = Buttons::getState(manager, button, false);
+    const auto button_state = Buttons::getState(manager, button, false);
+
+    // naive bindings report their digital state as full or zero velocity
+    if (button.isNaive()) {
+        return button_state == Buttons::BUTTON_PRESSED ? 1.f : 0.f;
+    }
 
     // check if button isn't being pressed
     if (button_state != Buttons::BUTTON_PRESSED) {

src/spice2x/cfg/button.cpp

@@ -299,7 +299,27 @@ std::string Button::getMidiNoteString() {
     return fmt::format("{}{}", note_names[index % 12], ((index / 12) - 1));
 }
 
-std::string Button::getDisplayString(rawinput::RawInputManager* manager) {
+std::string Button::getDisplayString(rawinput::RawInputManager *manager) {
+    auto binding_display = this->getBindingDisplayString(manager);
+    auto modifiers = this->getModifierMask();
+    if (binding_display.empty() || modifiers == 0) {
+        return binding_display;
+    }
+
+    std::string modifier_display;
+    for (unsigned int index = 1; modifiers != 0; index++, modifiers >>= 1) {
+        if ((modifiers & UINT8_C(1)) == 0) {
+            continue;
+        }
+        if (!modifier_display.empty()) {
+            modifier_display += "+";
+        }
+        modifier_display += fmt::format("Mod{}", index);
+    }
+    return modifier_display + "+" + binding_display;
+}
+
+std::string Button::getBindingDisplayString(rawinput::RawInputManager *manager) {
 
     // get VKey string
     auto vKey = (uint16_t) this->getVKey();

src/spice2x/cfg/button.h

@@ -49,6 +49,7 @@ private:
     std::string name;
     std::string device_identifier = "";
     unsigned short vKey = INVALID_VKEY;
+    uint8_t modifier_mask = 0;
 
     // default bindings are always naive
     unsigned short vKey_default = INVALID_VKEY;
@@ -65,6 +66,7 @@ private:
     unsigned short velocity_threshold = 0;
 
     std::string getMidiNoteString();
+    std::string getBindingDisplayString(rawinput::RawInputManager *manager);
 
 public:
     std::string getVKeyString();
@@ -111,6 +113,7 @@ public:
         device_identifier = "";
         analog_type = BAT_NONE;
         bat_threshold = 0;
+        modifier_mask = 0;
     }
 
     std::string getDisplayString(rawinput::RawInputManager* manager);
@@ -123,6 +126,14 @@ public:
         return this->name;
     }
 
+    inline uint8_t getModifierMask() const {
+        return this->modifier_mask;
+    }
+
+    inline void setModifierMask(uint8_t new_modifier_mask) {
+        this->modifier_mask = new_modifier_mask & UINT8_C(0x0F);
+    }
+
     inline const std::string &getDeviceIdentifier() const {
         return this->device_identifier;
     }

src/spice2x/cfg/config.cpp

@@ -165,6 +165,7 @@ bool Config::addGame(Game &game, bool save) {
                     int bat_threshold = 0;
                     int velocity_threshold = 0;
                     bool invert = false;
+                    unsigned int modifier_mask = 0;
                     tinyxml2::XMLError attrError = gameButtonNode->QueryIntAttribute("vkey", &vKey);
                     const char *devid = gameButtonNode->Attribute("devid");
                     gameButtonNode->QueryIntAttribute("analogtype", &analogType);
@@ -173,6 +174,7 @@ bool Config::addGame(Game &game, bool save) {
                     gameButtonNode->QueryIntAttribute("bat_threshold", &bat_threshold);
                     gameButtonNode->QueryIntAttribute("velocity_threshold", &velocity_threshold);
                     gameButtonNode->QueryBoolAttribute("invert", &invert);
+                    gameButtonNode->QueryUnsignedAttribute("modifiers", &modifier_mask);
                     if (attrError != tinyxml2::XMLError::XML_SUCCESS) {
                         gameButtonsNode->DeleteChild(gameButtonNode);
                         gameButtonNode = this->configFile.NewElement("button");
@@ -185,6 +187,7 @@ bool Config::addGame(Game &game, bool save) {
                         gameButtonNode->SetAttribute("bat_threshold", bat_threshold);
                         gameButtonNode->SetAttribute("velocity_threshold", velocity_threshold);
                         gameButtonNode->SetAttribute("invert", invert);
+                        gameButtonNode->SetAttribute("modifiers", button->getModifierMask());
                         gameButtonsNode->InsertEndChild(gameButtonNode);
                     } else {
                         button->setVKey(static_cast<unsigned short int>(vKey));
@@ -194,6 +197,7 @@ bool Config::addGame(Game &game, bool save) {
                         button->setBatThreshold(bat_threshold);
                         button->setVelocityThreshold(velocity_threshold);
                         button->setInvert(invert);
+                        button->setModifierMask(static_cast<uint8_t>(modifier_mask));
                         if (devid) {
                             button->setDeviceIdentifier(devid);
                         }
@@ -214,6 +218,7 @@ bool Config::addGame(Game &game, bool save) {
                 gameButtonNode->SetAttribute("bat_threshold", it.getBatThreshold());
                 gameButtonNode->SetAttribute("velocity_threshold", it.getVelocityThreshold());
                 gameButtonNode->SetAttribute("invert", it.getInvert());
+                gameButtonNode->SetAttribute("modifiers", it.getModifierMask());
                 gameButtonNode->SetAttribute("devid", it.getDeviceIdentifier().c_str());
                 gameButtonsNode->InsertEndChild(gameButtonNode);
             }
@@ -440,6 +445,7 @@ bool Config::addGame(Game &game, bool save) {
             gameButtonNode->SetAttribute("bat_threshold", it.getBatThreshold());
             gameButtonNode->SetAttribute("velocity_threshold", it.getVelocityThreshold());
             gameButtonNode->SetAttribute("invert", it.getInvert());
+            gameButtonNode->SetAttribute("modifiers", it.getModifierMask());
             gameButtonNode->SetAttribute("devid", it.getDeviceIdentifier().c_str());
             gameButtonsNode->InsertEndChild(gameButtonNode);
         }
@@ -552,6 +558,7 @@ bool Config::updateBinding(const Game &game, const Button &button, int alternati
                 gameButtonNode->SetAttribute("velocity_threshold", button.getVelocityThreshold());
                 gameButtonNode->SetAttribute("invert", button.getInvert());
                 gameButtonNode->SetAttribute("devid", button.getDeviceIdentifier().c_str());
+                gameButtonNode->SetAttribute("modifiers", button.getModifierMask());
                 break;
             }
         }
@@ -569,6 +576,7 @@ bool Config::updateBinding(const Game &game, const Button &button, int alternati
             gameButtonNode->SetAttribute("velocity_threshold", 0);
             gameButtonNode->SetAttribute("invert", false);
             gameButtonNode->SetAttribute("devid", "");
+            gameButtonNode->SetAttribute("modifiers", 0);
             gameButtonsNode->InsertEndChild(gameButtonNode);
         }
     }
@@ -964,6 +972,7 @@ std::vector<Button> Config::getButtons(const std::string &gameName) {
                 int bat_threshold = 0;
                 int velocity_threshold = 0;
                 bool invert = false;
+                unsigned int modifier_mask = 0;
                 gameButtonNode->QueryIntAttribute("vkey", &vKey);
                 gameButtonNode->QueryIntAttribute("analogtype", &analogType);
                 gameButtonNode->QueryDoubleAttribute("debounce_up", &debounce_up);
@@ -971,6 +980,7 @@ std::vector<Button> Config::getButtons(const std::string &gameName) {
                 gameButtonNode->QueryIntAttribute("bat_threshold", &bat_threshold);
                 gameButtonNode->QueryIntAttribute("velocity_threshold", &velocity_threshold);
                 gameButtonNode->QueryBoolAttribute("invert", &invert);
+                gameButtonNode->QueryUnsignedAttribute("modifiers", &modifier_mask);
                 const char *devid = gameButtonNode->Attribute("devid");
 
                 // find alternative
@@ -986,6 +996,7 @@ std::vector<Button> Config::getButtons(const std::string &gameName) {
                         alt.setBatThreshold(bat_threshold);
                         alt.setVelocityThreshold(velocity_threshold);
                         alt.setInvert(invert);
+                        alt.setModifierMask(static_cast<uint8_t>(modifier_mask));
                         if (devid) {
                             alt.setDeviceIdentifier(std::string(devid));
                         }
@@ -1005,6 +1016,7 @@ std::vector<Button> Config::getButtons(const std::string &gameName) {
                     button.setBatThreshold(bat_threshold);
                     button.setVelocityThreshold(velocity_threshold);
                     button.setInvert(invert);
+                    button.setModifierMask(static_cast<uint8_t>(modifier_mask));
                     if (devid) {
                         button.setDeviceIdentifier(devid);
                     }

src/spice2x/cfg/controller_presets.cpp

@@ -26,6 +26,7 @@ namespace overlay::windows {
         el->SetAttribute("debounce_down", entry.debounce_down);
         el->SetAttribute("bat_threshold", entry.bat_threshold);
         el->SetAttribute("velocity_threshold", entry.velocity_threshold);
+        el->SetAttribute("modifiers", entry.modifier_mask);
         parent->InsertEndChild(el);
     }
 
@@ -54,6 +55,10 @@ namespace overlay::windows {
         el->QueryIntAttribute("bat_threshold", &bat);
         entry.bat_threshold = bat;
 
+        unsigned int modifier_mask = 0;
+        el->QueryUnsignedAttribute("modifiers", &modifier_mask);
+        entry.modifier_mask = static_cast<uint8_t>(modifier_mask & UINT8_C(0x0F));
+
         return entry;
     }
 
@@ -160,6 +165,28 @@ namespace overlay::windows {
                 }
             }
 
+            // modifier buttons
+            auto *mod_el = tmpl_el->FirstChildElement("modifier_buttons");
+            if (mod_el) {
+                auto *btn_el = mod_el->FirstChildElement("button");
+                while (btn_el) {
+                    const char *btn_name = btn_el->Attribute("name");
+                    std::string btn_name_str = btn_name ? btn_name : "";
+
+                    TemplateButtonBinding *binding = nullptr;
+                    for (auto &b : tmpl.modifier_buttons) {
+                        if (b.name == btn_name_str) { binding = &b; break; }
+                    }
+                    if (!binding) {
+                        tmpl.modifier_buttons.push_back(
+                            {btn_name_str, read_button_entry(btn_el), {}});
+                    } else {
+                        binding->alternatives.push_back(read_button_entry(btn_el));
+                    }
+                    btn_el = btn_el->NextSiblingElement("button");
+                }
+            }
+
             // keypad buttons
             auto *kp_el = tmpl_el->FirstChildElement("keypad_buttons");
             if (kp_el) {
@@ -244,6 +271,7 @@ namespace overlay::windows {
     bool save_user_template(
         const ControllerTemplate &tmpl,
         const bool save_buttons,
+        const bool save_modifiers,
         const bool save_keypads,
         const bool save_analogs,
         const bool save_lights) {
@@ -300,6 +328,24 @@ namespace overlay::windows {
         }
         tmpl_el->InsertEndChild(buttons_el);
 
+        // modifier buttons - skip unbound entries
+        if (!tmpl.modifier_buttons.empty()) {
+            auto *mod_el = doc.NewElement("modifier_buttons");
+            if (save_modifiers) {
+                for (auto &btn : tmpl.modifier_buttons) {
+                    if (!btn.primary.is_unbound()) {
+                        write_button_entry(doc, mod_el, btn.name, btn.primary);
+                    }
+                    for (auto &alt : btn.alternatives) {
+                        if (!alt.is_unbound()) {
+                            write_button_entry(doc, mod_el, btn.name, alt);
+                        }
+                    }
+                }
+            }
+            tmpl_el->InsertEndChild(mod_el);
+        }
+
         // keypad buttons — skip unbound entries
         if (!tmpl.keypad_buttons.empty()) {
             auto *kp_el = doc.NewElement("keypad_buttons");

src/spice2x/external/imgui/imgui_filebrowser.h

@@ -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';

src/spice2x/games/ccj/ccj.cpp

@@ -7,7 +7,6 @@
 #include "util/utils.h"
 #include "util/detour.h"
 #include "acioemu/handle.h"
-#include "misc/wintouchemu.h"
 #include "hooks/graphics/graphics.h"
 #include "bi2x_hook.h"
 #include "trackball.h"

src/spice2x/games/gitadora/gitadora.cpp

@@ -13,6 +13,7 @@
 #include "hooks/graphics/graphics.h"
 #include "misc/wintouchemu.h"
 #include "overlay/overlay.h"
+#include "touch/native/nativetouchhook.h"
 #include "util/cpuutils.h"
 #include "util/deferlog.h"
 #include "util/detour.h"
@@ -653,9 +654,13 @@ namespace games::gitadora {
             // monitor/touch hooks (windowed or full screen)
             if (GRAPHICS_PREVENT_SECONDARY_WINDOWS) {
                 // enable touch hook for subscreen overlay
-                wintouchemu::FORCE = true;
-                wintouchemu::INJECT_MOUSE_AS_WM_TOUCH = true;
-                wintouchemu::hook("GITADORA", avs::game::DLL_INSTANCE);
+                const auto native_touch_ready = !wintouchemu::FORCE &&
+                    nativetouch::hook(avs::game::DLL_INSTANCE);
+                if (!native_touch_ready) {
+                    wintouchemu::FORCE = true;
+                    wintouchemu::INJECT_MOUSE_AS_WM_TOUCH = true;
+                    wintouchemu::hook("GITADORA", avs::game::DLL_INSTANCE);
+                }
 
 #if !SPICE_XP
 

src/spice2x/games/iidx/camera.cpp

@@ -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);

src/spice2x/games/iidx/iidx.cpp

@@ -20,9 +20,9 @@
 #include "hooks/sleephook.h"
 #include "launcher/options.h"
 #include "touch/touch.h"
-#include "misc/nativetouchhook.h"
-#include "misc/wintouchemu.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"
@@ -41,6 +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;
@@ -63,7 +64,8 @@ namespace games::iidx {
     bool TDJ_MODE = false;
     bool FORCE_720P = false;
     bool DISABLE_ESPEC_IO = false;
-    bool NATIVE_TOUCH = 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;
@@ -350,12 +352,15 @@ namespace games::iidx {
                 // need to hook `avs2-core.dll` so AVS win32fs operations go through rom hook
                 devicehook_init(avs::core::DLL_INSTANCE);
 
-                if (NATIVE_TOUCH) {
-                    nativetouchhook::hook(avs::game::DLL_INSTANCE);
-                } else {
+                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);
+                    wintouchemu::hook_title_ends(
+                        "beatmania IIDX",
+                        "main",
+                        avs::game::DLL_INSTANCE);
                 }
             }
 
@@ -533,6 +538,12 @@ namespace games::iidx {
         }
     }
 
+    void IIDXGame::post_attach() {
+        if (ENABLE_POKE) {
+            poke::enable();
+        }
+    }
+
     void IIDXGame::detach() {
         Game::detach();
 

src/spice2x/games/iidx/iidx.h

@@ -29,6 +29,7 @@ namespace games::iidx {
     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;
@@ -53,6 +54,7 @@ namespace games::iidx {
 
         virtual void attach() override;
         virtual void pre_attach() override;
+        virtual void post_attach() override;
         virtual void detach() override;
 
     private:

src/spice2x/games/iidx/local_camera.h

@@ -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();
     };
 }
 

src/spice2x/games/iidx/mf_wrappers.cpp

@@ -15,6 +15,10 @@ namespace games::iidx {
         _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,
@@ -35,6 +39,7 @@ namespace games::iidx {
         );
 
     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;
@@ -66,6 +71,12 @@ namespace games::iidx {
             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) {
@@ -92,6 +103,11 @@ namespace games::iidx {
         return MFCreateAttributes(ppMFAttributes, cInitialSize);
     }
 
+    HRESULT WrappedMFCreateMediaType (
+        _Out_ IMFMediaType** ppMFType) {
+        return MFCreateMediaType(ppMFType);
+    }
+
     HRESULT WrappedMFEnumDeviceSources (
         _In_ IMFAttributes* pAttributes,
         _Outptr_result_buffer_(*pcSourceActivate) IMFActivate*** pppSourceActivate,

src/spice2x/games/iidx/mf_wrappers.h

@@ -12,6 +12,9 @@ namespace games::iidx {
         _Out_ IMFAttributes** ppMFAttributes,
         _In_ UINT32 cInitialSize);
 
+    HRESULT WrappedMFCreateMediaType (
+        _Out_ IMFMediaType** ppMFType);
+
     HRESULT WrappedMFEnumDeviceSources (
         _In_ IMFAttributes* pAttributes,
         _Outptr_result_buffer_(*pcSourceActivate) IMFActivate*** pppSourceActivate,

src/spice2x/games/iidx/poke.cpp

@@ -1,31 +1,17 @@
 #include "poke.h"
 
+#include <chrono>
 #include <thread>
 
 #include "windows.h"
-#include "cfg/screen_resize.h"
 #include "games/io.h"
 #include "games/iidx/iidx.h"
 #include "hooks/graphics/graphics.h"
 #include "launcher/shutdown.h"
 #include "misc/eamuse.h"
-#include "overlay/overlay.h"
-#include "overlay/windows/generic_sub.h"
-#include "rawinput/rawinput.h"
+#include "touch/native/inject.h"
 #include "touch/touch.h"
-#include "util/libutils.h"
 #include "util/logging.h"
-#include "util/precise_timer.h"
-
-#define POKE_NATIVE_TOUCH 0
-
-#if POKE_NATIVE_TOUCH
-static HINSTANCE USER32_INSTANCE = nullptr;
-typedef BOOL (WINAPI *InitializeTouchInjection_t)(UINT32, DWORD);
-typedef BOOL (WINAPI *InjectTouchInput_t)(UINT32, POINTER_TOUCH_INFO*);
-static InitializeTouchInjection_t pInitializeTouchInjection = nullptr;
-static InjectTouchInput_t pInjectTouchInput = nullptr;
-#endif
 
 namespace games::iidx::poke {
 
@@ -116,93 +102,29 @@ namespace games::iidx::poke {
         {"1/D", 50},
     };
 
-#if POKE_NATIVE_TOUCH
-    void initialize_native_touch_library() {
-        if (USER32_INSTANCE == nullptr) {
-            USER32_INSTANCE = libutils::load_library("user32.dll");
-        }
-
-        pInitializeTouchInjection = libutils::try_proc<InitializeTouchInjection_t>(
-                USER32_INSTANCE, "InitializeTouchInjection");
-        pInjectTouchInput = libutils::try_proc<InjectTouchInput_t>(
-                USER32_INSTANCE, "InjectTouchInput");
-    }
-
-    void emulate_native_touch(TouchPoint tp, bool is_down) {
-        if (pInjectTouchInput == nullptr) {
+    static void inject_native_touch_points(const std::vector<TouchPoint> &touch_points, bool down) {
+        if (touch_points.empty()) {
             return;
         }
 
-        POINTER_TOUCH_INFO contact;
-        BOOL bRet = TRUE;
-        const int contact_offset = 2;
-
-        memset(&contact, 0, sizeof(POINTER_TOUCH_INFO));
-
-        contact.pointerInfo.pointerType = PT_TOUCH;
-        contact.pointerInfo.pointerId = 0;
-        contact.pointerInfo.ptPixelLocation.x = tp.x;
-        contact.pointerInfo.ptPixelLocation.y = tp.y;
-        if (is_down) {
-            contact.pointerInfo.pointerFlags = POINTER_FLAG_DOWN | POINTER_FLAG_INRANGE | POINTER_FLAG_INCONTACT;
-        } else {
-            contact.pointerInfo.pointerFlags = POINTER_FLAG_UP;
-        }
-
-        contact.pointerInfo.dwTime = 0;
-        contact.pointerInfo.PerformanceCount = 0;
-
-        contact.touchFlags = TOUCH_FLAG_NONE;
-        contact.touchMask = TOUCH_MASK_CONTACTAREA | TOUCH_MASK_ORIENTATION | TOUCH_MASK_PRESSURE;
-        contact.orientation = 0;
-        contact.pressure = 1024;
-
-        contact.rcContact.top = tp.y - contact_offset;
-        contact.rcContact.bottom = tp.y + contact_offset;
-        contact.rcContact.left = tp.x - contact_offset;
-        contact.rcContact.right = tp.x + contact_offset;
-
-        bRet = InjectTouchInput(1, &contact);
-        if (!bRet) {
-            log_warning("poke", "error injecting native touch {}: ({}, {}) error: {}", is_down ? "down" : "up", tp.x, tp.y, GetLastError());
-        }
+        const auto &touch = touch_points.front();
+        nativetouch::inject::inject_synthetic_touch({ touch.x, touch.y }, down);
     }
-
-    void emulate_native_touch_points(std::vector<TouchPoint> *touch_points) {
-        int i = 0;
-        for (auto &touch : *touch_points) {
-            emulate_native_touch(touch, true);
-        }
-    }
-
-    void clear_native_touch_points(std::vector<TouchPoint> *touch_points) {
-        for (auto &touch : *touch_points) {
-            emulate_native_touch(touch, false);
-        }
-        touch_points->clear();
-    }
-#endif
     
-    void clear_touch_points(std::vector<TouchPoint> *touch_points) {
-        std::vector<DWORD> touch_ids;
-        for (auto &touch : *touch_points) {
-            touch_ids.emplace_back(touch.id);
-        }
-        touch_remove_points(&touch_ids);
-        touch_points->clear();
-    }
-
     void enable() {
 
         // check if already running
         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");
 
@@ -210,35 +132,13 @@ namespace games::iidx::poke {
             std::vector<TouchPoint> touch_points;
             std::vector<uint16_t> last_keypad_state = {0, 0};
 
-#if POKE_NATIVE_TOUCH
-            bool use_native = games::iidx::NATIVE_TOUCH;
-
-            if (use_native) {
-                initialize_native_touch_library();
-                
-                if (pInitializeTouchInjection != nullptr) {
-                    pInitializeTouchInjection(1, TOUCH_FEEDBACK_NONE);
-                }
-            }
-
-#else 
-            bool use_native = false;
-#endif
-
             // set variable to false to stop
             while (THREAD_RUNNING) {
 
                 // clean up touch from last frame
                 if (touch_points.size() > 0) {
-#if POKE_NATIVE_TOUCH
-                    if (use_native) {
-                        clear_native_touch_points(&touch_points);
-                    } else {
-                        clear_touch_points(&touch_points);
-                    }
-#else
-                    clear_touch_points(&touch_points);
-#endif
+                    inject_native_touch_points(touch_points, false);
+                    touch_points.clear();
                 }
 
                 for (int unit = 0; unit < 2; unit++) {
@@ -263,32 +163,15 @@ namespace games::iidx::poke {
 
                                     float x = x_iter->second / 1920.0;
                                     float y = y_iter->second / 1080.0;
-                                    if (use_native) {
-                                        x *= rawinput::TOUCHSCREEN_RANGE_X;
-                                        y *= rawinput::TOUCHSCREEN_RANGE_Y;
-                                    } else if (GRAPHICS_IIDX_WSUB) {
-                                        // Scale to windowed subscreen
-                                        x *= GRAPHICS_WSUB_WIDTH;
-                                        y *= GRAPHICS_WSUB_HEIGHT;
-                                    } else if (GENERIC_SUB_WINDOW_FULLSIZE || !overlay::OVERLAY->get_active()) {
-                                        // Overlay is not present, scale to main screen
-                                        if (GRAPHICS_WINDOWED) {
-                                            x *= SPICETOUCH_TOUCH_WIDTH;
-                                            y *= SPICETOUCH_TOUCH_HEIGHT;
-                                        } else {
-                                            x *= ImGui::GetIO().DisplaySize.x;
-                                            y *= ImGui::GetIO().DisplaySize.y;
+                                    if (GRAPHICS_WINDOWED) {
+                                        if (SPICETOUCH_TOUCH_WIDTH <= 0 || SPICETOUCH_TOUCH_HEIGHT <= 0) {
+                                            continue;
                                         }
+                                        x = SPICETOUCH_TOUCH_X + x * SPICETOUCH_TOUCH_WIDTH;
+                                        y = SPICETOUCH_TOUCH_Y + y * SPICETOUCH_TOUCH_HEIGHT;
                                     } else {
-                                        // Overlay subscreen
-                                        x = (GENERIC_SUB_WINDOW_X + x * GENERIC_SUB_WINDOW_WIDTH);
-                                        y = (GENERIC_SUB_WINDOW_Y + y * GENERIC_SUB_WINDOW_HEIGHT);
-
-                                        // Scale to window size ratio
-                                        if (GRAPHICS_WINDOWED) {
-                                            x *= SPICETOUCH_TOUCH_WIDTH / ImGui::GetIO().DisplaySize.x;
-                                            y *= SPICETOUCH_TOUCH_HEIGHT / ImGui::GetIO().DisplaySize.y;
-                                        }
+                                        x = x_iter->second;
+                                        y = y_iter->second;
                                     }
 
                                     TouchPoint tp {
@@ -309,19 +192,15 @@ namespace games::iidx::poke {
                 } // for all units
 
                 if (touch_points.size() > 0) {
-#if POKE_NATIVE_TOUCH
-                    if (use_native) {
-                        emulate_native_touch_points(&touch_points);
-                    } else {
-                        touch_write_points(&touch_points);
-                    }
-#else
-                    touch_write_points(&touch_points);
-#endif
+                    inject_native_touch_points(touch_points, true);
                 }
 
                 // slow down
-                timer.sleep(50);
+                std::this_thread::sleep_for(std::chrono::milliseconds(50));
+            }
+
+            if (!touch_points.empty()) {
+                inject_native_touch_points(touch_points, false);
             }
 
             return nullptr;

src/spice2x/games/io.cpp

@@ -44,6 +44,7 @@ namespace games {
     static bool IO_INITIALIZED = false;
     static std::vector<std::string> games;
     static robin_hood::unordered_map<std::string, std::vector<Button> &> buttons;
+    static robin_hood::unordered_map<std::string, std::vector<Button>> buttons_modifiers;
     static robin_hood::unordered_map<std::string, std::vector<Button>> buttons_keypads;
     static robin_hood::unordered_map<std::string, std::vector<Button>> buttons_overlay;
     static robin_hood::unordered_map<std::string, std::string> buttons_help;
@@ -365,6 +366,37 @@ namespace games {
         return it->second;
     }
 
+    static std::vector<Button> gen_buttons_modifiers(const std::string &game) {
+        auto modifier_buttons = GameAPI::Buttons::getButtons(game);
+        const std::vector<std::string> names {
+            "Modifier 1",
+            "Modifier 2",
+            "Modifier 3",
+            "Modifier 4",
+        };
+        modifier_buttons = GameAPI::Buttons::sortButtons(modifier_buttons, names);
+        for (auto &modifier : modifier_buttons) {
+            modifier.setModifierMask(0);
+            for (auto &alternative : modifier.getAlternatives()) {
+                alternative.setModifierMask(0);
+            }
+        }
+        return modifier_buttons;
+    }
+
+    std::vector<Button> *get_buttons_modifiers(const std::string &game) {
+        initialize();
+        auto it = buttons_modifiers.find(game);
+        if (it == buttons_modifiers.end()) {
+            if (game.empty()) {
+                return nullptr;
+            }
+            buttons_modifiers[game] = gen_buttons_modifiers(game);
+            return &buttons_modifiers[game];
+        }
+        return &it->second;
+    }
+
     static std::vector<Button> gen_buttons_keypads(const std::string &game) {
         auto buttons = GameAPI::Buttons::getButtons(game);
         std::vector<std::string> names;

src/spice2x/games/io.h

@@ -5,6 +5,16 @@
 
 namespace games {
 
+    namespace ModifierButtons {
+        enum {
+            Modifier1,
+            Modifier2,
+            Modifier3,
+            Modifier4,
+            Size,
+        };
+    }
+
     namespace OverlayButtons {
         enum {
             Screenshot,
@@ -59,6 +69,7 @@ namespace games {
 
     const std::vector<std::string> &get_games();
     std::vector<Button> *get_buttons(const std::string &game);
+    std::vector<Button> *get_buttons_modifiers(const std::string &game);
     std::string get_buttons_help(const std::string &game);
     std::string get_analogs_help(const std::string &game);
     std::vector<Button> *get_buttons_keypads(const std::string &game);

src/spice2x/games/jb/jb.cpp

@@ -3,212 +3,24 @@
 #include <windows.h>
 #include <filesystem>
 
-#include "avs/game.h"
 #include "cfg/configurator.h"
-#include "hooks/graphics/graphics.h"
-#include "touch/touch.h"
 #include "util/logging.h"
-#include "util/utils.h"
 #include "util/detour.h"
 #include "util/libutils.h"
 
-#define JB_BUTTON_SIZE 160
-#define JB_BUTTON_GAP 37
-#define JB_BUTTON_HITBOX (JB_BUTTON_SIZE + JB_BUTTON_GAP)
-
 namespace games::jb {
 
-    // touch stuff
-    JubeatTouchAlgorithm TOUCH_ALGORITHM = Improved;
-    static bool TOUCH_ENABLE = false;
-    static bool TOUCH_ATTACHED = false;
-    static bool IS_PORTRAIT = true;
-    static std::vector<TouchPoint> TOUCH_POINTS;
-    bool TOUCH_STATE[16];
-
-    void touch_update() {
-
-        // check if touch enabled
-        if (!TOUCH_ENABLE) {
-            return;
-        }
-
-        // attach touch module
-        if (!TOUCH_ATTACHED) {
-
-            /*
-             * Find the game window.
-             * We check the foreground window first, then fall back to searching for the window title
-             * All game versions seem to have their model first in the window title
-             */
-            HWND wnd = GetForegroundWindow();
-            if (!string_begins_with(GetActiveWindowTitle(), avs::game::MODEL)) {
-                wnd = FindWindowBeginsWith(avs::game::MODEL);
-            }
-
-            // check if we have a window handle
-            if (!wnd) {
-                log_warning("jubeat", "could not find window handle for touch");
-                TOUCH_ENABLE = false;
-                return;
-            }
-
-            // attach touch hook
-            log_info("jubeat", "using window handle for touch: {}", fmt::ptr(wnd));
-            touch_create_wnd(wnd, true);
-
-            // show cursor
-            if (GRAPHICS_SHOW_CURSOR) {
-                ShowCursor(TRUE);
-            }
-
-            // earlier games use a different screen orientation
-            if (!avs::game::is_model("L44")) {
-                IS_PORTRAIT = false;
-            }
-
-            // set attached
-            TOUCH_ATTACHED = true;
-        }
-
-        // reset touch state
-        memset(TOUCH_STATE, 0, sizeof(TOUCH_STATE));
-
-        // check touch points
-        // note that the IO code in device.cpp will correctly compensate for orientation, depending on the model.
-        TOUCH_POINTS.clear();
-        touch_get_points(TOUCH_POINTS);
-        if (TOUCH_ALGORITHM == Legacy) {
-            auto offset = IS_PORTRAIT ? 580 : 0;
-            for (auto &tp : TOUCH_POINTS) {
-
-                // get grid coordinates
-                int x = tp.x * 4 / 768;
-                int y = (tp.y - offset) * 4 / (1360 - 580);
-
-                // set the corresponding state
-                int index = y * 4 + x;
-                if (index >= 0 && index < 16) {
-                    TOUCH_STATE[index] = true;
-                }
-            }
-        } else {
-            for (auto &tp : TOUCH_POINTS) {
-                // check window out of bounds
-                if (IS_PORTRAIT) {
-                    if (tp.x > 768 || tp.y > 1360) {
-                        continue;
-                    }
-                } else {
-                    if (tp.x > 1360 || tp.y > 768) {
-                        continue;
-                    }
-                }
-
-                int x_relative = tp.x;
-                int y_relative = tp.y;
-
-                // x_relative and y_relative are relative to the top-left pixel of the first button
-                if (IS_PORTRAIT) {
-                    // which is at (8, 602) in portrait:
-                    //   X: [8...759] (752 pixels wide)
-                    //   Y: [602...1353] (752 pixels high)
-                    x_relative -= 8;
-                    y_relative -= 602;
-                } else {
-                    // and at (8, 8) in landscape
-                    x_relative -= 8;
-                    y_relative -= 8;
-                }
-
-                int x_index = -1;
-                int x_hitbox = 0;
-                int y_index = -1;
-                int y_hitbox = 0;
-
-                // x_hitbox and y_hitbox is relative to top-left pixel of each button
-                if (x_relative >= 0) {
-                    x_index = x_relative / JB_BUTTON_HITBOX;
-                    x_hitbox = x_relative % JB_BUTTON_HITBOX;
-                }
-                if (y_relative >= 0) {
-                    y_index = y_relative / JB_BUTTON_HITBOX;
-                    y_hitbox = y_relative % JB_BUTTON_HITBOX;
-                }
-
-                // log_info("jb", "raw={}, idx={}, hitbox={}", tp.x, x_index, x_hitbox);
-
-                if (TOUCH_ALGORITHM == Improved) {
-                    if (IS_PORTRAIT) {
-                        // extend to left border
-                        if (x_relative < 0) {
-                            x_index = 0;
-                        }
-                        // right and bottom borders are covered by the hit box
-                    } else {
-                        // extend to top border
-                        if (y_relative < 0) {
-                            y_index = 0;
-                        }
-                        // extend to left border
-                        if (x_relative < 0) {
-                            x_index = 0;
-                        }
-                        // bottom border is covered by the hit box
-                        // rightmost edge - ignore them entirely
-                        if (x_index == 3 && JB_BUTTON_SIZE < x_hitbox) {
-                            continue;
-                        }
-                    }
-                }
-
-                if (x_index < 0 || y_index < 0 || x_index > 3 || y_index > 3) {
-                    continue;
-                }
-
-                // check if the gap was touched
-                if (TOUCH_ALGORITHM == AcAccurate) {
-                    // in ac-accurate mode, touching the gap is ignored
-                    if (x_hitbox > JB_BUTTON_SIZE || y_hitbox > JB_BUTTON_SIZE) {
-                        continue;
-                    }
-
-                } else if (TOUCH_ALGORITHM == Improved) {
-                    // in improved mode, touching the gap triggers the closest button
-                    if (x_index <= 2 && (JB_BUTTON_SIZE + JB_BUTTON_GAP / 2) < x_hitbox) {
-                        x_index++;
-                    }
-                    if (y_index <= 2 && (JB_BUTTON_SIZE + JB_BUTTON_GAP / 2) < y_hitbox) {
-                        y_index++;
-                    }
-                }
-
-                // set the corresponding state
-                int index = y_index * 4 + x_index;
-                if (0 <= index && index < 16) {
-                    TOUCH_STATE[index] = true;
-                }
-            }
-        }
-    }
-
-    /*
-     * to fix "IP ADDR CHANGE" errors on boot and in-game when using weird network setups such as a VPN
-     */
+    // fixes "IP ADDR CHANGE" errors with unusual network setups (e.g. a VPN)
     static BOOL __stdcall network_addr_is_changed() {
         return 0;
     }
 
-    /*
-     * to fix lag spikes when game tries to ping "eamuse.konami.fun" every few minutes
-     */
+    // fixes lag spikes from the periodic ping to "eamuse.konami.fun"
     static BOOL __stdcall network_get_network_check_info() {
         return 0;
     }
 
-    /*
-     * to fix network error on non DHCP interfaces
-     */
+    // fixes network errors on non-DHCP interfaces
     static BOOL __cdecl network_get_dhcp_result() {
         return 1;
     }
@@ -248,23 +60,7 @@ namespace games::jb {
     void JBGame::attach() {
         Game::attach();
 
-        // enable touch
-        TOUCH_ENABLE = true;
-
-        switch (TOUCH_ALGORITHM) {
-            case Legacy:
-                log_info("jubeat", "using 'legacy' touch targets");
-                break;
-            case Improved:
-                log_info("jubeat", "using 'improved' touch targets");
-                break;
-            case AcAccurate:
-                log_info("jubeat", "using 'ac accurate' touch targets");
-                break;
-            default:
-                log_fatal("jubeat", "unknown touch algo detected in touch_update, this is a bug");
-                break;
-        }
+        touch_attach();
 
         // enable debug logging of gftools
         HMODULE gftools = libutils::try_module("gftools.dll");
@@ -284,7 +80,6 @@ namespace games::jb {
     void JBGame::detach() {
         Game::detach();
 
-        // disable touch
-        TOUCH_ENABLE = false;
+        touch_detach();
     }
 }

src/spice2x/games/jb/jb.h

@@ -1,20 +1,10 @@
 #pragma once
 
 #include "games/game.h"
+#include "games/jb/jb_touch.h"
 
 namespace games::jb {
 
-    enum JubeatTouchAlgorithm {
-        Legacy,
-        Improved,
-        AcAccurate
-    };
-
-    // touch stuff
-    extern JubeatTouchAlgorithm TOUCH_ALGORITHM;
-    extern bool TOUCH_STATE[16];
-    void touch_update();
-
     class JBGame : public games::Game {
     public:
         JBGame();

src/spice2x/games/jb/jb_touch.cpp

@@ -0,0 +1,471 @@
+#include "jb_touch.h"
+
+#include <windows.h>
+#include <atomic>
+#include <cmath>
+#include <limits>
+#include <vector>
+
+#include "avs/game.h"
+#include "hooks/graphics/graphics.h"
+#include "launcher/launcher.h"
+#include "touch/touch.h"
+#include "rawinput/touch.h"
+#include "util/logging.h"
+#include "util/time.h"
+#include "util/utils.h"
+
+// touch layout: a 4x4 grid of 160px buttons separated by 37 / 38 / 37 px gaps
+// (752px across). the first button's top-left is at (8, 602) in portrait and
+// (6, 8) in landscape.
+#define JB_BUTTON_SIZE 160
+#define JB_MAX_BUTTON_GAP 38
+
+// 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.
+#define JB_TOUCH_RADIUS 38
+
+namespace games::jb {
+
+    static_assert(std::atomic_bool::is_always_lock_free);
+    static_assert(std::atomic_uint16_t::is_always_lock_free);
+    static_assert(std::atomic<POINT>::is_always_lock_free);
+    static constexpr int JB_MAX_GAP_DISTANCE = (JB_MAX_BUTTON_GAP + 1) / 2;
+    static_assert(JB_TOUCH_RADIUS * JB_TOUCH_RADIUS >=
+                  2 * JB_MAX_GAP_DISTANCE * JB_MAX_GAP_DISTANCE);
+
+    // touch state
+    JubeatTouchAlgorithm TOUCH_ALGORITHM = Improved;
+    JubeatTouchDebugMode TOUCH_DEBUG_OVERLAY = JbTouchDebugAuto;
+    uint32_t TOUCH_DEBOUNCE_MS = 0;
+    static std::atomic_bool TOUCH_ENABLE = false;
+    static bool TOUCH_ATTACHED = false;
+    static bool IS_PORTRAIT = true;
+    static std::atomic_uint16_t TOUCH_STATE = 0;
+
+    // fixed-size contact view used by the debug overlay
+    static const size_t JB_MAX_TOUCH_POINTS = 16;
+    static constexpr LONG JB_INVALID_TOUCH_COORD = std::numeric_limits<LONG>::max();
+    static constexpr POINT JB_INVALID_TOUCH_POINT {
+        JB_INVALID_TOUCH_COORD,
+        JB_INVALID_TOUCH_COORD
+    };
+    static std::atomic<POINT> TOUCH_POINTS[JB_MAX_TOUCH_POINTS] {};
+
+    static void clear_touch_points() {
+        for (auto &point : TOUCH_POINTS) {
+            point.store(JB_INVALID_TOUCH_POINT, std::memory_order_release);
+        }
+    }
+
+    // false when a contact is younger than the debounce window and should be ignored
+    static bool touch_matured(const TouchPoint &tp, double now_ms, double threshold_ms) {
+        return now_ms - tp.down_ms >= threshold_ms;
+    }
+
+    // snapshot for the debug overlay: each slot atomically holds one matured contact or
+    // the invalid sentinel. immature and absent contacts are published as invalid, so the
+    // overlay never shows a suppressed tap and a single atomic per slot cannot tear
+    static void publish_touch_points(const std::vector<TouchPoint> &touch_points,
+                                     double now_ms, double threshold_ms) {
+        size_t count = touch_points.size();
+        if (count > JB_MAX_TOUCH_POINTS) {
+            count = JB_MAX_TOUCH_POINTS;
+        }
+
+        for (size_t i = 0; i < JB_MAX_TOUCH_POINTS; i++) {
+            POINT point = JB_INVALID_TOUCH_POINT;
+            if (i < count && touch_matured(touch_points[i], now_ms, threshold_ms)) {
+                point = { touch_points[i].x, touch_points[i].y };
+            }
+            TOUCH_POINTS[i].store(point, std::memory_order_release);
+        }
+    }
+
+    // --- 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 };
+
+    struct AxisGeometry {
+        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) {
+        AxisGeometry g {};
+        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];
+        }
+        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);
+        } else {
+            gx = axis_geometry(6);
+            gy = axis_geometry(8);
+        }
+    }
+
+    // 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;
+        if (p < button) {
+            return button - p;
+        }
+        if (p > end) {
+            return p - end;
+        }
+        return 0;
+    }
+
+    // index (0..15) of the nearest button to (px, py) within `radius`, or -1 if none;
+    // shared by detection and the debug overlay so both agree which button a touch hits
+    static int nearest_button(
+            int px, int py, const AxisGeometry &gx, const AxisGeometry &gy, int radius) {
+        int best_index = -1;
+        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 dist = dx * dx + dy * dy;
+                if (dist <= radius * radius && (best_index < 0 || dist < best_dist)) {
+                    best_dist = dist;
+                    best_index = r * 4 + c;
+                }
+            }
+        }
+        return best_index;
+    }
+
+    // detection reach for the current algorithm (0 = register only inside a button)
+    static int touch_radius() {
+        return TOUCH_ALGORITHM == AcAccurate ? 0 : JB_TOUCH_RADIUS;
+    }
+
+    // mark the buttons a touch at (px, py) hits: only the nearest within `radius`, or
+    // every button within `radius` when `multi` (edge/gap presses trigger several)
+    static void mark_buttons(uint16_t &state, int px, int py,
+                             const AxisGeometry &gx, const AxisGeometry &gy,
+                             int radius, bool multi) {
+        if (!multi) {
+            int index = nearest_button(px, py, gx, gy, radius);
+            if (index >= 0) {
+                state |= uint16_t(1) << index;
+            }
+            return;
+        }
+        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]);
+                if (dx * dx + dy * dy <= radius * radius) {
+                    state |= uint16_t(1) << (r * 4 + c);
+                }
+            }
+        }
+    }
+
+    std::bitset<16> touch_state() {
+        return std::bitset<16>(TOUCH_STATE.load(std::memory_order_acquire));
+    }
+
+    void touch_update() {
+
+        if (!TOUCH_ENABLE.load(std::memory_order_acquire)) {
+            return;
+        }
+
+        // one-time touch window attach
+        if (!TOUCH_ATTACHED) {
+
+            // find the game window: prefer the foreground window, else search by
+            // title (the model name prefixes the window title in every version)
+            HWND wnd = GetForegroundWindow();
+            if (!string_begins_with(GetActiveWindowTitle(), avs::game::MODEL)) {
+                wnd = FindWindowBeginsWith(avs::game::MODEL);
+            }
+            if (!wnd) {
+                log_warning("jubeat", "could not find window handle for touch");
+                TOUCH_ENABLE.store(false, std::memory_order_release);
+                TOUCH_STATE.store(0, std::memory_order_release);
+                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
+            ::rawinput::touch::ASPECT_COMPENSATION_GAME = true;
+
+            touch_create_wnd(wnd, true);
+
+            if (GRAPHICS_SHOW_CURSOR) {
+                ShowCursor(TRUE);
+            }
+
+            TOUCH_ATTACHED = true;
+        }
+
+        // calculate the next state locally and publish it after processing every touch
+        uint16_t next_state = 0;
+        std::vector<TouchPoint> touch_points;
+        touch_get_points(touch_points);
+
+        // debounce: the landing time is stamped by the touch layer, so this is
+        // independent of how often the game polls for input (0 = off)
+        double now_ms = get_performance_milliseconds();
+        double threshold_ms = TOUCH_DEBOUNCE_MS;
+
+        // publish every raw contact (with its maturity) for the debug overlay, then drop
+        // the ones still inside the debounce window so no algorithm sees them
+        publish_touch_points(touch_points, now_ms, threshold_ms);
+        std::erase_if(touch_points, [&](const TouchPoint &tp) {
+            return !touch_matured(tp, now_ms, threshold_ms);
+        });
+
+        if (TOUCH_ALGORITHM == Legacy) {
+
+            // legacy: evenly divide the play area into a 4x4 grid
+            auto offset = IS_PORTRAIT ? 580 : 0;
+            for (auto &tp : touch_points) {
+                int x = tp.x * 4 / 768;
+                int y = (tp.y - offset) * 4 / (1360 - 580);
+                int index = y * 4 + x;
+                if (index >= 0 && index < 16) {
+                    next_state |= uint16_t(1) << index;
+                }
+            }
+        } else {
+
+            // accurate registers only a touch inside a button; improved snaps each touch
+            // to the single nearest button within reach (so a gap or centre touch still
+            // triggers exactly one button); plus marks every button within the same reach,
+            // so an edge or gap touch can trigger several at once (like the mobile game)
+            AxisGeometry gx, gy;
+            touch_geometry(gx, gy);
+            int radius = touch_radius();
+            bool multi = (TOUCH_ALGORITHM == Plus);
+            for (auto &tp : touch_points) {
+                mark_buttons(next_state, tp.x, tp.y, gx, gy, radius, multi);
+            }
+        }
+
+        TOUCH_STATE.store(next_state, std::memory_order_release);
+    }
+
+    // true when any supported touch handler detects a touchscreen (checked once)
+    static bool touchscreen_detected() {
+        static const bool detected = is_touch_available("jubeat touch debug overlay");
+        return detected;
+    }
+
+    // auto draws the boxes only when a touch screen is present
+    static bool debug_show_boxes() {
+        switch (TOUCH_DEBUG_OVERLAY) {
+            case JbTouchDebugBox:
+            case JbTouchDebugAll:
+                return true;
+            case JbTouchDebugAuto:
+                return touchscreen_detected();
+            default:
+                return false;
+        }
+    }
+
+    static bool debug_show_taps() {
+        return TOUCH_DEBUG_OVERLAY == JbTouchDebugAll;
+    }
+
+    bool touch_debug_overlay_enabled() {
+        return TOUCH_ENABLE.load(std::memory_order_acquire) &&
+               (debug_show_boxes() || debug_show_taps());
+    }
+
+    // the 16 boundary rects: legacy divides the area evenly, others use button squares
+    static void debug_cells(
+            bool legacy, const AxisGeometry &gx, const AxisGeometry &gy, RECT cells[16]) {
+        if (legacy) {
+            int offset = IS_PORTRAIT ? 580 : 0;
+            int x_edges[5];
+            int y_edges[5];
+            for (int i = 0; i <= 4; i++) {
+                x_edges[i] = i * 768 / 4;
+                y_edges[i] = offset + i * (1360 - 580) / 4;
+            }
+            for (int r = 0; r < 4; r++) {
+                for (int c = 0; c < 4; c++) {
+                    cells[r * 4 + c] = { x_edges[c], y_edges[r], x_edges[c + 1], y_edges[r + 1] };
+                }
+            }
+        } else {
+            for (int r = 0; r < 4; r++) {
+                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
+                    };
+                }
+            }
+        }
+    }
+
+    // hollow box outlines: grey idle, thick green when pressed (PS_INSIDEFRAME stays inside)
+    static void draw_debug_boxes(
+            HDC hdc, bool legacy, const AxisGeometry &gx, const AxisGeometry &gy) {
+        RECT cells[16];
+        debug_cells(legacy, gx, gy, cells);
+
+        HPEN pen_idle = CreatePen(PS_SOLID, 1, RGB(160, 160, 160));
+        HPEN pen_active = CreatePen(PS_INSIDEFRAME, 4, RGB(0, 200, 0));
+        auto state = touch_state();
+        for (int i = 0; i < 16; i++) {
+            HGDIOBJ old_pen = SelectObject(hdc, state[i] ? pen_active : pen_idle);
+            Rectangle(hdc, cells[i].left, cells[i].top, cells[i].right, cells[i].bottom);
+            SelectObject(hdc, old_pen);
+        }
+        DeleteObject(pen_idle);
+        DeleteObject(pen_active);
+    }
+
+    // whether a touch at (px, py) presses at least one button: legacy has no gaps, plus
+    // reaches across gaps to nearby buttons, and the others only fire inside a button square
+    static bool touch_presses_button(int px, int py, const AxisGeometry &gx, const AxisGeometry &gy,
+                                     bool legacy, int radius) {
+        if (legacy) {
+            return true;
+        }
+        int reach = (TOUCH_ALGORITHM == Plus) ? radius : 0;
+        return nearest_button(px, py, gx, gy, reach) >= 0;
+    }
+
+    // 90-degree arc on the circle rim facing the centre of button `index`
+    static void draw_tap_arc(HDC hdc, int px, int py, int index,
+                             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);
+        const double quarter = 3.14159265358979323846 / 2.0;
+        const int segments = 16;
+        POINT arc[segments + 1];
+        for (int i = 0; i <= segments; i++) {
+            double a = mid - quarter / 2.0 + quarter * i / segments;
+            arc[i].x = px + static_cast<LONG>(std::lround(arc_radius * std::cos(a)));
+            arc[i].y = py + static_cast<LONG>(std::lround(arc_radius * std::sin(a)));
+        }
+        Polyline(hdc, arc, segments + 1);
+    }
+
+    // circle at each touch: white when it presses a button, grey otherwise; in single-button
+    // modes a gap touch also gets a white arc facing the button it snapped to (skipped in
+    // plus, where a touch can trigger several buttons at once)
+    static void draw_debug_taps(
+            HDC hdc, bool legacy, const AxisGeometry &gx, const AxisGeometry &gy) {
+        // PS_INSIDEFRAME keeps the stroke inside the circle radius
+        const int stroke = 4;
+        HPEN pen_white = CreatePen(PS_INSIDEFRAME, stroke, RGB(255, 255, 255));
+        HPEN pen_gray = CreatePen(PS_INSIDEFRAME, stroke, RGB(128, 128, 128));
+        HGDIOBJ old_pen = SelectObject(hdc, pen_white);
+
+        // accurate has no reach, so fall back to a visible marker size when drawing the circle
+        int radius = touch_radius();
+        int draw_radius = radius > 0 ? radius : JB_TOUCH_RADIUS;
+
+        // each slot holds a matured contact or the invalid sentinel; immature and absent
+        // contacts were already filtered out by publish_touch_points
+        for (auto &touch_point : TOUCH_POINTS) {
+            POINT point = touch_point.load(std::memory_order_acquire);
+            if (point.x == JB_INVALID_TOUCH_COORD) {
+                continue;
+            }
+
+            bool pressed = touch_presses_button(point.x, point.y, gx, gy, legacy, radius);
+
+            SelectObject(hdc, pressed ? pen_white : pen_gray);
+            Ellipse(hdc, point.x - draw_radius, point.y - draw_radius,
+                         point.x + draw_radius, point.y + draw_radius);
+
+            // the arc points at a single snapped-to button; plus can trigger several at
+            // once, so skip it there
+            if (pressed || TOUCH_ALGORITHM == Plus) {
+                continue;
+            }
+            int index = nearest_button(point.x, point.y, gx, gy, radius);
+            if (index >= 0) {
+                SelectObject(hdc, pen_white);
+                draw_tap_arc(hdc, point.x, point.y, index, gx, gy, draw_radius - stroke / 2);
+            }
+        }
+
+        SelectObject(hdc, old_pen);
+        DeleteObject(pen_white);
+        DeleteObject(pen_gray);
+    }
+
+    void touch_draw_debug_overlay(HDC hdc) {
+
+        // only draw while touch is active
+        if (!TOUCH_ENABLE.load(std::memory_order_acquire)) {
+            return;
+        }
+
+        bool show_boxes = debug_show_boxes();
+        bool show_taps = debug_show_taps();
+        if (!show_boxes && !show_taps) {
+            return;
+        }
+
+        // legacy divides the field evenly; the other algorithms use button squares
+        bool legacy = (TOUCH_ALGORITHM == Legacy);
+        AxisGeometry gx {}, gy {};
+        if (!legacy) {
+            touch_geometry(gx, gy);
+        }
+
+        HGDIOBJ old_brush = SelectObject(hdc, GetStockObject(NULL_BRUSH));
+        if (show_boxes) {
+            draw_debug_boxes(hdc, legacy, gx, gy);
+        }
+        if (show_taps) {
+            draw_debug_taps(hdc, legacy, gx, gy);
+        }
+        SelectObject(hdc, old_brush);
+    }
+
+    void touch_attach() {
+        clear_touch_points();
+        TOUCH_ENABLE.store(true, std::memory_order_release);
+
+        switch (TOUCH_ALGORITHM) {
+            case Legacy:
+                log_info("jubeat", "using 'legacy' touch targets");
+                break;
+            case Improved:
+                log_info("jubeat", "using 'improved' touch targets");
+                break;
+            case Plus:
+                log_info("jubeat", "using 'plus' touch targets");
+                break;
+            case AcAccurate:
+                log_info("jubeat", "using 'ac accurate' touch targets");
+                break;
+            default:
+                log_fatal("jubeat", "unknown touch algo, this is a bug");
+                break;
+        }
+    }
+
+    void touch_detach() {
+        TOUCH_ENABLE.store(false, std::memory_order_release);
+        TOUCH_STATE.store(0, std::memory_order_release);
+    }
+}

src/spice2x/games/jb/jb_touch.h

@@ -0,0 +1,49 @@
+#pragma once
+
+#include <bitset>
+#include <cstdint>
+#include <windows.h>
+
+namespace games::jb {
+
+    // touch detection algorithm
+    enum JubeatTouchAlgorithm {
+        Legacy,
+        Improved,
+        Plus,
+        AcAccurate
+    };
+
+    // debug touch overlay mode
+    enum JubeatTouchDebugMode {
+        JbTouchDebugAuto,   // boundary boxes when a touch screen is detected, else nothing
+        JbTouchDebugNone,   // draw nothing
+        JbTouchDebugBox,    // boundary boxes
+        JbTouchDebugAll,    // boundary boxes and touch circles
+    };
+
+    // selected algorithm and debug mode (set from the launcher options)
+    extern JubeatTouchAlgorithm TOUCH_ALGORITHM;
+    extern JubeatTouchDebugMode TOUCH_DEBUG_OVERLAY;
+
+    // minimum contact age in milliseconds before a touch registers (0 = off);
+    // filters momentary phantom touches from noisy panels
+    extern uint32_t TOUCH_DEBOUNCE_MS;
+
+    // atomically published panel state, read by the I/O layer
+    std::bitset<16> touch_state();
+
+    // read the current touch points and refresh the panel state
+    void touch_update();
+
+    // enable/disable touch handling on game attach/detach
+    void touch_attach();
+    void touch_detach();
+
+    // whether the debug overlay should currently draw anything
+    bool touch_debug_overlay_enabled();
+
+    // draw the debug touch overlay (boundary boxes and/or touch circles per the
+    // selected mode) onto the spice touch overlay window's device context
+    void touch_draw_debug_overlay(HDC hdc);
+}

src/spice2x/games/mfg/mfg.cpp

@@ -6,7 +6,6 @@
 #include "util/utils.h"
 #include "util/execexe.h"
 #include "acioemu/handle.h"
-#include "misc/wintouchemu.h"
 #include "hooks/graphics/graphics.h"
 #include "bi2a_hook.h"
 

src/spice2x/games/nost/nost.cpp

@@ -1,16 +1,15 @@
-// enable touch functions - set version to windows 7
-// mingw otherwise doesn't load touch stuff
-#define _WIN32_WINNT 0x0601
-
 #include "nost.h"
 #include "poke.h"
+#include "touch_mode.h"
 #include "hooks/setupapihook.h"
 #include "misc/wintouchemu.h"
+#include "touch/native/nativetouchhook.h"
 #include "avs/game.h"
 
 namespace games::nost {
 
     bool ENABLE_POKE = false;
+    bool ENABLE_TOUCH_MODE = false;
 
     NostGame::NostGame() : Game("Nostalgia") {
     }
@@ -43,9 +42,16 @@ namespace games::nost {
         setupapihook_init(avs::game::DLL_INSTANCE);
         setupapihook_add(touch_settings);
 
-        // custom touch
-        // nostalgia crashes if you inject touch events too early
-        wintouchemu::hook("nostalgia", avs::game::DLL_INSTANCE, 20);
+        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();
+            }
+        }
     }
 
     void NostGame::post_attach() {
@@ -55,6 +61,9 @@ namespace games::nost {
     }
 
     void NostGame::detach() {
+        if (ENABLE_TOUCH_MODE) {
+            touch_mode::disable();
+        }
         if (ENABLE_POKE) {
             poke::disable();
         }

src/spice2x/games/nost/nost.h

@@ -5,6 +5,7 @@
 namespace games::nost {
 
     extern bool ENABLE_POKE;
+    extern bool ENABLE_TOUCH_MODE;
 
     class NostGame : public games::Game {
     public:

src/spice2x/games/nost/poke.cpp

@@ -1,22 +1,25 @@
 #include "poke.h"
 
-#include <thread>
+#include <atomic>
+#include <chrono>
 #include <optional>
+#include <thread>
 
 #include "games/nost/io.h"
 #include "cfg/api.h"
 #include "rawinput/rawinput.h"
 #include "misc/eamuse.h"
-#include "touch/touch.h"
+#include "touch/native/inject.h"
+#include "touch/native/nativetouchhook.h"
 #include "util/logging.h"
-#include "util/precise_timer.h"
 
 namespace games::nost::poke {
 
     static std::thread *THREAD = nullptr;
-    static volatile bool THREAD_RUNNING = false;
-    
-    static const std::unordered_map<int, std::pair<LONG, LONG>> NOST_POKE_NUM {
+    static std::atomic<bool> THREAD_RUNNING { false };
+
+    // positions use game-client pixels, matching the legacy client-sized touch window
+    static const std::unordered_map<int, std::pair<LONG, LONG>> NOST_POKE_KEYPAD {
         {EAM_IO_KEYPAD_0, {760, 440}},
         {EAM_IO_KEYPAD_1, {760, 385}},
         {EAM_IO_KEYPAD_2, {820, 385}},
@@ -31,7 +34,8 @@ namespace games::nost::poke {
         {EAM_IO_KEYPAD_DECIMAL, {880, 440}} // also erase button
     };
 
-    static const std::unordered_map<games::nost::Buttons::Button, std::pair<LONG, LONG>> NOST_POKE {
+    static const std::unordered_map<
+        games::nost::Buttons::Button, std::pair<LONG, LONG>> NOST_POKE_BUTTONS {
         {games::nost::Buttons::Button::PokeConfirm, {1100, 525}},
         {games::nost::Buttons::Button::PokeBack, {340, 100}},
         {games::nost::Buttons::Button::PokeSong1, {450, 190}},
@@ -46,13 +50,8 @@ namespace games::nost::poke {
         {games::nost::Buttons::Button::PokeDifficulty4, {820, 490}},
     };
 
-    void clear_touch_points(std::vector<TouchPoint> *touch_points) {
-        std::vector<DWORD> touch_ids;
-        for (auto &touch : *touch_points) {
-            touch_ids.emplace_back(touch.id);
-        }
-        touch_remove_points(&touch_ids);
-        touch_points->clear();
+    static bool inject_poke_position(POINT position, bool down) {
+        return nativetouch::inject::inject_synthetic_touch(position, down);
     }
 
     void enable() {
@@ -61,126 +60,143 @@ 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 DWORD touch_id = (DWORD)(0xFFFFFFFE);
-
             const int swipe_anim_total_frames = 6;
             const int swipe_anim_y = 300;
 
             const int swipe_next_page_x_begin = 1120;
-            const int swipe_next_page_x_end = 1120-120;
+            const int swipe_next_page_x_end = 1120 - 120;
 
-            const int swipe_prev_page_x_begin = 280-120;
+            const int swipe_prev_page_x_begin = 280 - 120;
             const int swipe_prev_page_x_end = 280;
 
             int next_page_anim_index = -1;
             int prev_page_anim_index = -1;
-            std::vector<TouchPoint> touch_points;
-
-            bool touch_release = false;
+            bool contact_active = false;
+            bool release_pending = false;
+            POINT last_position {};
+            std::unordered_map<games::nost::Buttons::Button, bool> button_states;
+            uint16_t last_keypad_state = 0;
 
             // log
             log_info("poke", "enabled");
 
             // set variable to false to stop
             while (THREAD_RUNNING) {
-                // clean up touch from last frame
-                if (!touch_points.empty()) {
-                    if (touch_release) {
-                        clear_touch_points(&touch_points);
-                        touch_release = false;
-                    } else {
-                        touch_points.clear();
+                if (release_pending) {
+                    if (contact_active) {
+                        inject_poke_position(last_position, false);
                     }
+                    contact_active = false;
+                    release_pending = false;
                 }
 
                 auto &buttons = games::nost::get_buttons();
+                std::optional<POINT> touch_position;
+                bool release_after_touch = false;
+
+                const auto button_triggered = [&](games::nost::Buttons::Button button) {
+                    const auto pressed =
+                        GameAPI::Buttons::getState(RI_MGR, buttons.at(button));
+                    const auto triggered = pressed && !button_states[button];
+                    button_states[button] = pressed;
+                    return triggered;
+                };
+
+                std::optional<POINT> triggered_touch_position;
+                for (const auto& it : NOST_POKE_BUTTONS) {
+                    if (button_triggered(it.first) && !triggered_touch_position.has_value()) {
+                        triggered_touch_position = POINT {
+                            it.second.first,
+                            it.second.second,
+                        };
+                    }
+                }
+
+                const auto next_triggered =
+                    button_triggered(games::nost::Buttons::PokeNextPage);
+                const auto prev_triggered =
+                    button_triggered(games::nost::Buttons::PokePrevPage);
+
+                const auto keypad_state = eamuse_get_keypad_state(0);
+                if (!triggered_touch_position.has_value()) {
+                    for (const auto& it : NOST_POKE_KEYPAD) {
+                        const auto mask = static_cast<uint16_t>(1 << it.first);
+                        if ((keypad_state & mask) && !(last_keypad_state & mask)) {
+                            triggered_touch_position = POINT {
+                                it.second.first,
+                                it.second.second,
+                            };
+                            break;
+                        }
+                    }
+                }
+                last_keypad_state = keypad_state;
 
                 if (0 <= next_page_anim_index) {
                     const auto delta =
                         (swipe_next_page_x_end - swipe_next_page_x_begin)
                         * (swipe_anim_total_frames - next_page_anim_index) / swipe_anim_total_frames;
 
-                    TouchPoint tp {
-                        .id = touch_id,
-                        .x = (LONG)swipe_next_page_x_begin + delta,
-                        .y = (LONG)swipe_anim_y,
-                        .mouse = true,
+                    touch_position = POINT {
+                        swipe_next_page_x_begin + delta,
+                        swipe_anim_y,
                     };
-                    touch_points.emplace_back(tp);
                     next_page_anim_index--;
                     if (next_page_anim_index < 0) {
-                        touch_release = true;
+                        release_after_touch = true;
                     }
                 } else if (0 <= prev_page_anim_index) {
                     const auto delta =
                         (swipe_prev_page_x_end - swipe_prev_page_x_begin)
                         * (swipe_anim_total_frames - prev_page_anim_index) / swipe_anim_total_frames;
 
-                    TouchPoint tp {
-                        .id = touch_id,
-                        .x = (LONG)swipe_prev_page_x_begin + delta,
-                        .y = (LONG)swipe_anim_y,
-                        .mouse = true,
+                    touch_position = POINT {
+                        swipe_prev_page_x_begin + delta,
+                        swipe_anim_y,
                     };
-                    touch_points.emplace_back(tp);
                     prev_page_anim_index--;
                     if (prev_page_anim_index < 0) {
-                        touch_release = true;
+                        release_after_touch = true;
                     }
                 } else {
-                    for (const auto& it : NOST_POKE) {
-                        if (GameAPI::Buttons::getState(RI_MGR, buttons.at(it.first))) {
-                            TouchPoint tp {
-                                .id = touch_id,
-                                .x = it.second.first,
-                                .y = it.second.second,
-                                .mouse = true,
-                            };
-                            touch_points.emplace_back(tp);
-                            touch_release = true;
-                            break;
-                        }
-                    }
-                    if (!touch_release) {
-                        const auto state = eamuse_get_keypad_state(0);
-                        if (state) {
-                            for (const auto& it : NOST_POKE_NUM) {
-                                if (state & (1 << it.first)) {
-                                    TouchPoint tp {
-                                        .id = touch_id,
-                                        .x = it.second.first,
-                                        .y = it.second.second,
-                                        .mouse = true,
-                                    };
-                                    touch_points.emplace_back(tp);
-                                    touch_release = true;
-                                    break;
-                                }
-                            }
-                        }
-                    }
+                    touch_position = triggered_touch_position;
+                    release_after_touch = touch_position.has_value();
 
                     // start animations for next frame
-                    if (!touch_release) {
-                        if (GameAPI::Buttons::getState(RI_MGR, buttons.at(games::nost::Buttons::PokeNextPage))) {
+                    if (!touch_position.has_value()) {
+                        if (next_triggered) {
                             next_page_anim_index = swipe_anim_total_frames;
                         }
-                        if (GameAPI::Buttons::getState(RI_MGR, buttons.at(games::nost::Buttons::PokePrevPage))) {
+
+                        if (prev_triggered) {
                             prev_page_anim_index = swipe_anim_total_frames;
                         }
                     }
                 }
 
-                if (!touch_points.empty()) {
-                    touch_write_points(&touch_points);
+                if (touch_position.has_value() &&
+                    inject_poke_position(*touch_position, true)) {
+                    contact_active = true;
+                    last_position = *touch_position;
+                }
+                if (release_after_touch && contact_active) {
+                    release_pending = true;
                 }
 
                 // slow down
-                timer.sleep(30);
+                std::this_thread::sleep_for(std::chrono::milliseconds(30));
+            }
+
+            if (contact_active) {
+                inject_poke_position(last_position, false);
             }
 
             return nullptr;

src/spice2x/games/nost/touch_mode.cpp

@@ -0,0 +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;
+    }
+}

src/spice2x/games/nost/touch_mode.h

@@ -0,0 +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);
+}

src/spice2x/games/pc/pc.cpp

@@ -12,7 +12,6 @@
 #include "util/unity_player.h"
 #include "util/execexe.h"
 #include "acioemu/handle.h"
-#include "misc/wintouchemu.h"
 #include "hooks/graphics/graphics.h"
 #include "rawinput/rawinput.h"
 #include "util/socd_cleaner.h"

src/spice2x/games/pcm/pcm.cpp

@@ -2,7 +2,6 @@
 
 #include "acio/icca/icca.h"
 #include "io.h"
-#include "misc/wintouchemu.h"
 #include "util/detour.h"
 #include "util/utils.h"
 #include "util/libutils.h"

src/spice2x/games/popn/popn.cpp

@@ -16,16 +16,16 @@
 #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"
-#include "misc/nativetouchhook.h"
-#include "misc/wintouchemu.h"
+#include "touch/native/nativetouchhook.h"
 
 namespace games::popn {
 
     bool SHOW_PIKA_MONITOR_WARNING = false;
-    bool NATIVE_TOUCH = false;
+    bool NATIVE_TOUCH = true;
     
 #if SPICE64 && !SPICE_XP
 
@@ -715,13 +715,16 @@ namespace games::popn {
         //       00000100 0000000B 00000001  (button 9)
         //       set third column to 0 and it will work with BIO2
         
-        if (!GRAPHICS_WINDOWED) {
-            if (NATIVE_TOUCH) {
-                nativetouchhook::hook(avs::game::DLL_INSTANCE);
-            } else {
-                wintouchemu::FORCE = true;
+        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);
+                wintouchemu::hook_title_ends(
+                    "",
+                    "Main Screen",
+                    avs::game::DLL_INSTANCE);
             }
         }
 

src/spice2x/games/rb/rb.cpp

@@ -41,7 +41,7 @@ void games::rb::RBGame::attach() {
     Game::attach();
 
     if (1000 < games::rb::TOUCH_POLL_RATE) {
-        log_fatal("rb", "-rbtouchsize is set too high; cannot exceed 1000");
+        log_fatal("rb", "-rbtouchhz is set too high; cannot exceed 1000");
     }
 
     // init stuff
@@ -60,7 +60,7 @@ void games::rb::RBGame::attach() {
         log_info("rb", "force increasing touch poll rate by hooking SleepEx ({}Hz)", TOUCH_POLL_RATE);
         SleepEx_orig = detour::iat_try("SleepEx", SleepEx_hook, avs::game::DLL_INSTANCE);
     } else {
-        log_info("rb", "not changing touch poll rate (120Hz by default)");
+        log_info("rb", "not changing touch poll rate (~125Hz by default)");
     }
 }
 

src/spice2x/games/rb/rb.h

@@ -7,7 +7,6 @@
 namespace games::rb {
 
     extern uint16_t TOUCH_SCALING;
-    extern uint8_t TOUCH_SIZE;
     extern uint16_t TOUCH_POLL_RATE;
 
     class RBGame : public games::Game {

src/spice2x/games/rb/touch.cpp

@@ -4,7 +4,10 @@
 
 #include "avs/game.h"
 #include "hooks/graphics/graphics.h"
+#include "rawinput/touch.h"
 #include "touch/touch.h"
+#include "touch_debug.h"
+#include "touch_defs.h"
 #include "util/logging.h"
 #include "util/time.h"
 #include "util/utils.h"
@@ -12,28 +15,38 @@
 static std::string WINDOW_TITLE = "REFLEC BEAT";
 
 namespace games::rb {
-    uint16_t TOUCH_SCALING = 1000;
-    uint8_t TOUCH_SIZE = 1;
+    static constexpr double TOUCH_POINT_OFFSET_DIVISOR = 3.0;
+    static constexpr double X_INPUT_COORDINATE_COUNT = 54.0;
+
+    uint16_t TOUCH_SCALING = TOUCH_SCALE_DEFAULT;
+
+    static void packet_set_bit(unsigned char *packet, int bit) {
+        packet[TOUCH_PACKET_DATA_OFFSET + bit / 8] |=
+            static_cast<unsigned char>(1u << (bit % 8));
+    }
 }
 
-games::rb::ReflecBeatTouchDeviceHandle::ReflecBeatTouchDeviceHandle(bool log_fps) {
-    this->log_fps = log_fps;
+games::rb::ReflecBeatTouchDeviceHandle::ReflecBeatTouchDeviceHandle(bool log_fps) : log_fps(log_fps) {
 }
 
 void games::rb::ReflecBeatTouchDeviceHandle::grid_insert(unsigned char *data, int cursor_x, int cursor_y) {
 
-    // scale to grid position - there are 48 columns and 76 rows of IR sensors.
-    // for whatever reason, the last y row (#75) results in weird input few rows above; just drop it
-    int grid_x = CLAMP((cursor_x * 48) / window_width, 0, 47);
-    int grid_y = CLAMP((cursor_y * 76) / window_height, 0, 74);
+    // read() contracts X uniformly so screen edges land within usable sensors 2..45
+    int grid_x = CLAMP(
+        (cursor_x * X_SENSOR_COUNT) / window_width,
+        0,
+        X_SENSOR_COUNT - 1);
+    int grid_y = CLAMP(
+        (cursor_y * Y_SENSOR_COUNT) / window_height,
+        0,
+        Y_SENSOR_COUNT - 1);
 
     // get bit positions
-    int bit_x = 88 + grid_x;
-    int bit_y = 74 - grid_y;
+    int bit_x = X_SENSOR_FIRST_BIT + grid_x;
+    int bit_y = Y_SENSOR_FIRST_BIT - grid_y;
 
-    // insert bits
-    data[3 + bit_x / 8] |= (char) 1 << (bit_x % 8);
-    data[3 + bit_y / 8] |= (char) 1 << (bit_y % 8);
+    packet_set_bit(data, bit_x);
+    packet_set_bit(data, bit_y);
 }
 
 bool games::rb::ReflecBeatTouchDeviceHandle::open(LPCWSTR lpFileName) {
@@ -49,6 +62,9 @@ bool games::rb::ReflecBeatTouchDeviceHandle::open(LPCWSTR lpFileName) {
 
     if (wnd != nullptr) {
 
+        // cache the game window so read() can size against it regardless of focus
+        this->game_hwnd = wnd;
+
         // reset window process to make the game not crash
         SetWindowLongPtr(wnd, GWLP_WNDPROC, reinterpret_cast<LONG_PTR>(DefWindowProc));
 
@@ -68,18 +84,19 @@ bool games::rb::ReflecBeatTouchDeviceHandle::open(LPCWSTR lpFileName) {
             // update window
             SetWindowPos(wnd, nullptr, 0, 0, 0, 0,
                          SWP_FRAMECHANGED | SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER | SWP_NOOWNERZORDER);
+        }
 
-            // create touch window
-            touch_create_wnd(wnd);
+        // request automatic aspect ratio fixes
+        ::rawinput::touch::ASPECT_COMPENSATION_GAME = true;
 
-        } else {
+        // create touch window
+        touch_create_wnd(wnd);
 
-            // create touch window
-            touch_create_wnd(wnd);
-
-            // show game window because it lost focus
+        // show fullscreen game window because it lost focus
+        if (!GRAPHICS_WINDOWED) {
             ShowWindow(wnd, SW_SHOW);
         }
+
     } else {
 
         // fallback to dx hook
@@ -91,18 +108,21 @@ bool games::rb::ReflecBeatTouchDeviceHandle::open(LPCWSTR lpFileName) {
         ShowCursor(TRUE);
     }
 
+    touch_debug_attach();
+
     return true;
 }
 
 int games::rb::ReflecBeatTouchDeviceHandle::read(LPVOID lpBuffer, DWORD nNumberOfBytesToRead) {
 
     // check buffer size
-    if (nNumberOfBytesToRead < 20) {
+    if (nNumberOfBytesToRead < TOUCH_PACKET_SIZE) {
         return 0;
     }
 
-    // get window
-    HWND window = GetForegroundWindow();
+    // size against the game window cached in open() (not GetForegroundWindow), so
+    // touch stays correctly scaled and keeps working when the game loses focus
+    HWND window = this->game_hwnd;
     if (window == nullptr) {
         return 0;
     }
@@ -122,17 +142,17 @@ int games::rb::ReflecBeatTouchDeviceHandle::read(LPVOID lpBuffer, DWORD nNumberO
     }
 
     // create data
-    unsigned char data[20] {};
+    unsigned char data[TOUCH_PACKET_SIZE] {};
 
     // data header
     data[0] = 0x55;
     data[2] = 0x4C;
    
-    const auto SCALE_FACTOR = games::rb::TOUCH_SCALING / 1000.f;
+    const float scale_factor = games::rb::TOUCH_SCALING / (float) games::rb::TOUCH_SCALE_DEFAULT;
 
     // iterate all touch points
-    auto offset_x = (int) (window_width / 48.0 / 3.0);
-    auto offset_y = (int) (window_height / 76.0 / 3.0);
+    int offset_x = (int) (window_width / (double) X_SENSOR_COUNT / TOUCH_POINT_OFFSET_DIVISOR);
+    int offset_y = (int) (window_height / (double) Y_SENSOR_COUNT / TOUCH_POINT_OFFSET_DIVISOR);
     std::vector<TouchPoint> touch_points;
     touch_get_points(touch_points);
     for (auto &point : touch_points) {
@@ -148,37 +168,44 @@ int games::rb::ReflecBeatTouchDeviceHandle::read(LPVOID lpBuffer, DWORD nNumberO
         }
 
         // apply scaling
-        x = x - (window_width * (1.f - SCALE_FACTOR) / 2);
-        x = x / SCALE_FACTOR;
-        y = y - (window_height * (1.f - SCALE_FACTOR) / 2);
-        y = y / SCALE_FACTOR;
+        x = x - (window_width * (1.f - scale_factor) / 2);
+        x = x / scale_factor;
+        y = y - (window_height * (1.f - scale_factor) / 2);
+        y = y / scale_factor;
 
         if (x < 0 || window_width <= x || y < 0 || window_height <= y) {
             continue;
         }
 
-        // point scaling
-        const auto point_x = (int) ((x - window_width / 2.0) * 48.0 / 54.0 + window_width / 2.0);
-        const auto point_y = (int) (y - window_height / 76);
+        // point coordinates
+        // keep the verified left edge fixed while adding up to one-third of a beam
+        // at the right edge, preventing the finger footprint from including sensor 44
+        const auto point_x = (int) (
+            (x - window_width / 2.0) * X_SENSOR_COUNT / X_INPUT_COORDINATE_COUNT +
+            window_width / 2.0 +
+            x / (X_SENSOR_COUNT * TOUCH_POINT_OFFSET_DIVISOR));
+        const auto point_y = (int) y;
 
-        // center
-        grid_insert(data, point_x, point_y);
-
-        // surrounding points
-        if (games::rb::TOUCH_SIZE == 3) {
-            grid_insert(data, point_x - offset_x, point_y);            // west
-            grid_insert(data, point_x - offset_x, point_y - offset_y); // northwest
-            grid_insert(data, point_x - offset_x, point_y + offset_y); // southwest
-            grid_insert(data, point_x + offset_x, point_y);            // east
-            grid_insert(data, point_x + offset_x, point_y + offset_y); // southeast
-            grid_insert(data, point_x + offset_x, point_y - offset_y); // northeast
-            grid_insert(data, point_x, point_y - offset_y);            // north
-            grid_insert(data, point_x, point_y + offset_y);            // south
-        }
+        // model a finger as a 3x3 block of IR sensors around the touch point
+        // this gives better accuracy (than just 1x1) since the logic below
+        // can toggle anywhere from 1x1 to 2x2, and the game engine calculates
+        // the center point, which means by inserting up to 8 extra blocks
+        // we are emulating a sub-"pixel" resolution
+        grid_insert(data, point_x, point_y);                       // center
+        grid_insert(data, point_x - offset_x, point_y);            // west
+        grid_insert(data, point_x - offset_x, point_y - offset_y); // northwest
+        grid_insert(data, point_x - offset_x, point_y + offset_y); // southwest
+        grid_insert(data, point_x + offset_x, point_y);            // east
+        grid_insert(data, point_x + offset_x, point_y + offset_y); // southeast
+        grid_insert(data, point_x + offset_x, point_y - offset_y); // northeast
+        grid_insert(data, point_x, point_y - offset_y);            // north
+        grid_insert(data, point_x, point_y + offset_y);            // south
     }
 
+    touch_debug_publish(data, is_landscape);
+
     // copy data to buffer
-    memcpy(lpBuffer, data, 20);
+    memcpy(lpBuffer, data, TOUCH_PACKET_SIZE);
 
     // update frame logging
     if (log_fps) {
@@ -193,7 +220,7 @@ int games::rb::ReflecBeatTouchDeviceHandle::read(LPVOID lpBuffer, DWORD nNumberO
     }
 
     // return amount of bytes written
-    return 20;
+    return TOUCH_PACKET_SIZE;
 }
 
 int games::rb::ReflecBeatTouchDeviceHandle::write(LPCVOID lpBuffer, DWORD nNumberOfBytesToWrite) {
@@ -207,6 +234,8 @@ int games::rb::ReflecBeatTouchDeviceHandle::device_io(DWORD dwIoControlCode, LPV
 
 bool games::rb::ReflecBeatTouchDeviceHandle::close() {
 
+    touch_debug_detach();
+
     // detach touch module
     touch_detach();
 

src/spice2x/games/rb/touch.h

@@ -12,6 +12,12 @@ namespace games::rb {
         int window_width = 1080;
         int window_height = 1920;
 
+        // game window resolved in open(); read() sizes against this instead of the
+        // foreground window so touch stays correctly scaled and keeps working when
+        // the game is not the foreground window (rawinput delivers touch regardless
+        // of focus)
+        HWND game_hwnd = nullptr;
+
         // logging
         bool log_fps = false;
         uint64_t log_time = 0;

src/spice2x/games/rb/touch_debug.cpp

@@ -0,0 +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;
+    }
+}

src/spice2x/games/rb/touch_debug.h

@@ -0,0 +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);
+}

src/spice2x/games/rb/touch_defs.h

@@ -0,0 +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;
+}

src/spice2x/games/sdvx/sdvx.cpp

@@ -8,6 +8,9 @@
 #include "hooks/graphics/graphics.h"
 #include "hooks/devicehook.h"
 #include "hooks/libraryhook.h"
+#ifdef SPICE64
+#include "hooks/graphics/nvapi_impl.h"
+#endif
 #include "hooks/graphics/nvapi_hook.h"
 #include "hooks/powrprof.h"
 #include "hooks/sleephook.h"
@@ -23,8 +26,8 @@
 #include "util/libutils.h"
 #include "util/sysutils.h"
 #include "misc/eamuse.h"
-#include "misc/nativetouchhook.h"
 #include "misc/wintouchemu.h"
+#include "touch/native/nativetouchhook.h"
 #include "bi2x_hook.h"
 #include "camera.h"
 #include "io.h"
@@ -46,7 +49,6 @@ namespace games::sdvx {
     const char *ORIGINAL_ASIO_DEVICE_NAME = "XONAR SOUND CARD(64)";
 
     // settings
-    bool NATIVETOUCH = false;
     uint8_t DIGITAL_KNOB_SENS = 16;
     SdvxOverlayPosition OVERLAY_POS = SDVX_OVERLAY_BOTTOM;
     bool ENABLE_COM_PORT_SCAN_HOOK = false;
@@ -428,28 +430,41 @@ namespace games::sdvx {
         if (aio != nullptr) {
 
             // enable 9on12 for AMD
-            if (!libutils::try_library("nvapi64.dll")) {
+            const auto nvapi = libutils::try_library("nvapi64.dll");
+            if (nvapi == nullptr) {
                 log_info(
                     "sdvx",
                     "nvapi64.dll not found; for non-NVIDIA GPUs, requesting 9on12 to be enabled");
                 GRAPHICS_9_ON_12_REQUESTED_BY_GAME = true;
+            }
+
+            if (nvapi_hook::BYPASS_NVAPI || nvapi == nullptr) {
+                const uint32_t main_refresh_hz = GRAPHICS_FORCE_REFRESH > 0 ?
+                    GRAPHICS_FORCE_REFRESH : (is_valkyrie_model() ? 120 : 60);
+                const uint32_t sub_refresh_hz = GRAPHICS_FORCE_REFRESH_SUB.value_or(60);
+                if (!nvapi_impl::initialize(
+                        avs::game::DLL_INSTANCE,
+                        main_refresh_hz,
+                        sub_refresh_hz)) {
+                    log_warning("sdvx", "failed to initialize synthetic NVAPI");
+                }
             } else {
                 // don't let nvapi mess with display settings
                 nvapi_hook::initialize(avs::game::DLL_INSTANCE);
             }
 
             if (is_valkyrie_model()) {
-                if (NATIVETOUCH) {
-                    nativetouchhook::hook(avs::game::DLL_INSTANCE);
-                } else if (!NATIVETOUCH && !GRAPHICS_WINDOWED) {
-                    // hook touch window
-                    // in windowed mode, game can accept mouse input on the second screen
+                const auto native_touch_ready = !wintouchemu::FORCE &&
+                    nativetouch::hook(avs::game::DLL_INSTANCE);
+                if (!native_touch_ready) {
                     wintouchemu::FORCE = true;
-                    wintouchemu::INJECT_MOUSE_AS_WM_TOUCH = true;
-                    wintouchemu::hook_title_ends(
+                    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

src/spice2x/games/sdvx/sdvx.h

@@ -18,7 +18,6 @@ namespace games::sdvx {
     };
 
     // settings
-    extern bool NATIVETOUCH;
     extern uint8_t DIGITAL_KNOB_SENS;
     extern std::optional<std::string> ASIO_DRIVER;
     extern SdvxOverlayPosition OVERLAY_POS;

src/spice2x/hooks/audio/asio_driver_scan.cpp

@@ -32,18 +32,28 @@ namespace hooks::audio {
              RegEnumKeyA(hkEnum, index, key_name, sizeof(key_name)) == ERROR_SUCCESS;
              index++) {
 
-            // read description (display name), fall back to the key name
+            // 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;
-            if (RegGetValueA(hkEnum,
-                             key_name,
-                             ASIO_REG_DESC,
-                             RRF_RT_REG_SZ | wow64_flag,
-                             nullptr,
-                             desc,
-                             &size) == ERROR_SUCCESS && desc[0]) {
-                name = desc;
+            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)

src/spice2x/hooks/audio/asio_proxy.cpp

@@ -154,36 +154,30 @@ namespace {
         }
     }
 
-    // live wrappers by CLSID. ASIO drivers are single-instance, so a host that creates a
-    // new instance without releasing the old one has leaked it; we track this to tear the
-    // stale one down
+    // one wrapper per CLSID, kept alive for the process lifetime. ASIO drivers are
+    // single-instance, and some hardware drivers (e.g. Neva Uno) crash if their COM object
+    // is destroyed and re-created within a process - which the host triggers by leaking and
+    // re-instantiating the driver during startup probing. so we build the real driver and
+    // its wrapper once, hold a reference so it survives the host's Release calls, and hand
+    // the same wrapper back for every later CoCreate. as a result the real driver is created
+    // and initialized exactly once
     std::mutex g_wrappers_mutex;
     std::vector<std::pair<CLSID, WrappedAsio *>> g_wrappers;
 
-    // register a wrapper as the live instance for its CLSID, returning any stale wrapper it
-    // replaces so the caller can tear it down outside the lock
-    WrappedAsio *register_wrapper(REFCLSID clsid, WrappedAsio *wrapper) {
+    WrappedAsio *find_wrapper(REFCLSID clsid) {
         std::lock_guard lock(g_wrappers_mutex);
         for (auto &entry : g_wrappers) {
             if (IsEqualCLSID(entry.first, clsid)) {
-                WrappedAsio *stale = entry.second;
-                entry.second = wrapper;
-                return stale;
+                return entry.second;
             }
         }
 
-        g_wrappers.emplace_back(clsid, wrapper);
         return nullptr;
     }
 
-    void unregister_wrapper(WrappedAsio *wrapper) {
+    void store_wrapper(REFCLSID clsid, WrappedAsio *wrapper) {
         std::lock_guard lock(g_wrappers_mutex);
-        for (auto it = g_wrappers.begin(); it != g_wrappers.end(); ++it) {
-            if (it->second == wrapper) {
-                g_wrappers.erase(it);
-                return;
-            }
-        }
+        g_wrappers.emplace_back(clsid, wrapper);
     }
 
     // ASIO drivers registered on this system (CLSID + registry name), scanned once
@@ -256,12 +250,11 @@ WrappedAsio::StereoDownmix WrappedAsio::name_to_stereo_downmix(const char *name)
 }
 
 WrappedAsio::~WrappedAsio() {
-    unregister_wrapper(this);
-
     this->detach_post_process();
 
-    // our refcount is decoupled from the host's (see AddRef/Release), so pReal's count is
-    // exactly one here and this releases/unloads it deterministically
+    // never runs mid-run: wrap() pins the wrapper so the refcount stays above zero until
+    // release_all_wrappers() drops the pin at shutdown - the only point this can fire, and
+    // only once the host has released its own references. tears down the real driver
     this->pReal->Release();
 
     log_info("audio::wrappedasio", "destroying wrapped ASIO driver, clsid={}", guid2s(this->clsid));
@@ -315,8 +308,17 @@ ULONG STDMETHODCALLTYPE WrappedAsio::Release() {
 
 #pragma region IAsio
 AsioBool __thiscall WrappedAsio::init(void *sys_handle) {
+    // the real driver is single-instance and kept alive; initialize it exactly once. the
+    // host re-calls init() on each CoCreate during probing, but re-initializing a live
+    // driver crashes some hardware drivers, so once we have a live driver we report success
+    if (this->initialized) {
+        log_misc("audio::wrappedasio", "init skipped, '{}' already initialized", this->driver_name);
+        return AsioTrue;
+    }
+
     const AsioBool result = this->pReal->init(sys_handle);
     if (result == AsioTrue) {
+        this->initialized = true;
         log_info(
             "audio::wrappedasio",
             "init succeeded for '{}' (driver version {})",
@@ -346,6 +348,7 @@ void __thiscall WrappedAsio::get_error_message(char *string) {
 AsioError __thiscall WrappedAsio::start() {
     const AsioError result = this->pReal->start();
     if (result == ASE_OK) {
+        this->started = true;
         log_info(
             "audio::wrappedasio",
             "start succeeded, ASIO stream is now running on '{}'",
@@ -360,6 +363,7 @@ AsioError __thiscall WrappedAsio::start() {
 AsioError __thiscall WrappedAsio::stop() {
     const AsioError result = this->pReal->stop();
     if (result == ASE_OK) {
+        this->started = false;
         log_info("audio::wrappedasio", "stop succeeded, ASIO stream on '{}' halted", this->driver_name);
     } else {
         log_warning("audio::wrappedasio", "stop failed, err={}", static_cast<long>(result));
@@ -740,6 +744,27 @@ void WrappedAsio::detach_post_process() {
     WrappedAsio::active_instance.compare_exchange_strong(expected, nullptr);
 }
 
+void WrappedAsio::quiesce_for_reuse() {
+    // a previous abandoned probing cycle may have left a running stream and live buffers on
+    // the real driver without calling stop/dispose; tear that down now (without destroying
+    // the driver) so the host's next create_buffers starts clean. stop() guarantees no
+    // further buffer_switch, and dispose_buffers detaches our trampolines
+    if (this->started) {
+        log_info(
+            "audio::wrappedasio",
+            "reuse: stopping leftover stream on '{}' before handing the driver back",
+            this->driver_name);
+        this->stop();
+    }
+    if (this->buffers_created) {
+        log_info(
+            "audio::wrappedasio",
+            "reuse: disposing leftover buffers on '{}' before handing the driver back",
+            this->driver_name);
+        this->dispose_buffers();
+    }
+}
+
 void WrappedAsio::apply_output_volume(long double_buffer_index) {
     if (double_buffer_index != 0 && double_buffer_index != 1) {
         return;
@@ -838,6 +863,7 @@ AsioError __thiscall WrappedAsio::create_buffers(
             }
         }
         this->publish_post_process(buffer_size);
+        this->buffers_created = true;
     } else {
         log_warning(
             "audio::wrappedasio",
@@ -940,6 +966,7 @@ AsioError WrappedAsio::create_buffers_front_pair(
     // device's 2.0 output. then publish ourselves to the realtime thread
     this->record_downmix_channels(buffer_infos, num_channels, buffer_size);
     this->publish_post_process(buffer_size);
+    this->buffers_created = true;
 
     log_info(
         "audio::wrappedasio",
@@ -962,6 +989,7 @@ AsioError __thiscall WrappedAsio::dispose_buffers() {
     this->volume_channels.clear();
     this->volume_active = false;
     this->downmix_active = false;
+    this->buffers_created = false;
     return result;
 }
 
@@ -986,29 +1014,54 @@ namespace hooks::audio::asio {
         auto *wrapper = new WrappedAsio(
             reinterpret_cast<IAsio *>(real), clsid, registered_asio_name(clsid));
 
-        // if the host already had a live wrapper for this CLSID it leaked the previous
-        // instance (ASIO is single-instance); tear it down now so the real driver is
-        // released before the reinit. works around games (iidx32+) that ref twice but
-        // deref once before re-initializing.
-        //
-        // FlexASIO 1.9 and many DAC ASIO drivers can't handle this; FlexASIO 1.10 and
-        // Xonar AE can
-        if (WrappedAsio *stale = register_wrapper(clsid, wrapper)) {
-            log_info(
-                "audio::wrappedasio",
-                "host did not release previous instance for clsid={}, forcing teardown",
-                guid2s(clsid));
-
-            // the stale instance may still have a running stream on the driver's realtime
-            // thread. stop and dispose it before deleting so no in-flight buffer switch
-            // (e.g. our volume trampoline) touches buffers we are about to free. ASIO
-            // guarantees no further buffer_switch once stop() returns, and dispose_buffers
-            // detaches our trampolines, fully quiescing the realtime path before delete
-            stale->stop();
-            stale->dispose_buffers();
-            delete stale;
-        }
+        // pin the wrapper (and the real driver it owns) for the process lifetime; later
+        // CoCreate calls reuse this same instance via wrap_existing
+        wrapper->AddRef();
+        store_wrapper(clsid, wrapper);
 
         return static_cast<IAsio *>(wrapper);
     }
+
+    IUnknown *wrap_existing(REFCLSID clsid) {
+        WrappedAsio *wrapper = find_wrapper(clsid);
+        if (wrapper == nullptr) {
+            return nullptr;
+        }
+
+        log_misc(
+            "audio::wrappedasio",
+            "reusing cached ASIO driver instance, clsid={}",
+            guid2s(clsid));
+
+        wrapper->quiesce_for_reuse();
+
+        // hand the host another reference to the one instance we keep alive
+        wrapper->AddRef();
+        return static_cast<IAsio *>(wrapper);
+    }
+
+    void release_all_wrappers() {
+        // collect the pinned wrappers under the lock, then drop our references outside it so
+        // a final Release (which can run the driver's own teardown) never happens while the
+        // lock is held
+        std::vector<std::pair<CLSID, WrappedAsio *>> wrappers;
+        {
+            std::lock_guard lock(g_wrappers_mutex);
+            wrappers = g_wrappers;
+            g_wrappers.clear();
+        }
+
+        for (auto &entry : wrappers) {
+            // drop only the pin wrap() took. if the host has already released its own
+            // references (the normal case at shutdown) this destroys the wrapper and releases
+            // the real driver; if the host is still using it, the refcount stays above zero
+            // and we leave its live stream/buffers untouched
+            log_misc(
+                "audio::wrappedasio",
+                "releasing cached ASIO driver instance, clsid={}",
+                guid2s(entry.first));
+            entry.second->Release();
+        }
+    }
 }
+

src/spice2x/hooks/audio/asio_proxy.h

@@ -18,8 +18,20 @@ namespace hooks::audio::asio {
     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
+    // 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
@@ -103,6 +115,10 @@ struct WrappedAsio final : IAsio {
     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
@@ -170,6 +186,14 @@ private:
     // 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};

src/spice2x/hooks/audio/audio.cpp

@@ -7,6 +7,7 @@
 #include <audioclient.h>
 #include <mmdeviceapi.h>
 
+#include "avs/game.h"
 #include "hooks/audio/backends/mmdevice/device_enumerator.h"
 #include "util/detour.h"
 #include "util/logging.h"
@@ -15,6 +16,7 @@
 #include "audio_private.h"
 #include "acm.h"
 #include "asio_proxy.h"
+#include "xact.h"
 
 #ifdef _MSC_VER
 DEFINE_GUID(CLSID_MMDeviceEnumerator,
@@ -53,9 +55,39 @@ namespace hooks::audio {
     std::string ASIO_DRIVER_NAME = "";
     bool ASIO_FORCE_UNLOAD_ON_STOP = false;
 
-    // private globals
-    IAudioClient *CLIENT = nullptr;
     std::mutex INITIALIZE_LOCK; // for asio
+
+    IAudioClient *CLIENT = nullptr;
+    static std::mutex CLIENT_LOCK;
+    static bool CLIENT_STOPPING = false;
+
+    void set_active_client(IAudioClient *client, const char *source) {
+        IAudioClient *previous_client = nullptr;
+        {
+            std::lock_guard lock(CLIENT_LOCK);
+
+            if (CLIENT_STOPPING || CLIENT == client) {
+                return;
+            }
+            if (client) {
+                client->AddRef();
+            }
+
+            previous_client = CLIENT;
+            CLIENT = client;
+        }
+
+        if (previous_client) {
+            previous_client->Release();
+        }
+
+        if (client) {
+            log_info(
+                "audio",
+                "active client selected by {} after successful initialization",
+                source);
+        }
+    }
 }
 
 static HRESULT STDAPICALLTYPE CoCreateInstance_hook(
@@ -68,6 +100,15 @@ static HRESULT STDAPICALLTYPE CoCreateInstance_hook(
 
     HRESULT ret;
 
+    // ASIO: if we already hold a cached instance for this CLSID, hand back a fresh
+    // wrapper over it instead of re-creating the real driver (see asio_proxy.cpp)
+    if (ppv != nullptr && hooks::audio::asio::is_asio_creation(rclsid, riid)) {
+        if (IUnknown *reused = hooks::audio::asio::wrap_existing(rclsid)) {
+            *ppv = reused;
+            return S_OK;
+        }
+    }
+
     // call original
     ret = CoCreateInstance_orig(rclsid, pUnkOuter, dwClsContext, riid, ppv);
     if (FAILED(ret)) {
@@ -120,15 +161,28 @@ namespace hooks::audio {
 
         // general hooks
         CoCreateInstance_orig = detour::iat_try("CoCreateInstance", CoCreateInstance_hook);
+        if (avs::game::is_model("PAN")) {
+            hooks::audio::xact::init();
+        }
     }
 
     void stop() {
         log_info("audio", "stopping");
-        if (CLIENT) {
-            CLIENT->Stop();
-            CLIENT->Release();
+        IAudioClient *client = nullptr;
+        {
+            std::lock_guard lock(CLIENT_LOCK);
+            CLIENT_STOPPING = true;
+            client = CLIENT;
             CLIENT = nullptr;
         }
+        if (client) {
+            client->Stop();
+            client->Release();
+        }
         stop_low_latency();
+
+        // release the ASIO drivers we kept pinned for the process lifetime now that we are
+        // at a controlled shutdown point (see asio_proxy.cpp)
+        hooks::audio::asio::release_all_wrappers();
     }
 }

src/spice2x/hooks/audio/audio_private.h

@@ -14,4 +14,6 @@ namespace hooks::audio {
     extern std::mutex INITIALIZE_LOCK;
     extern bool VOLUME_HOOK_ENABLED;
     extern LowLatencyAudioClient *LOW_LATENCY_CLIENT;
+
+    void set_active_client(IAudioClient *client, const char *source);
 }

src/spice2x/hooks/audio/backends/mmdevice/device.cpp

@@ -95,11 +95,6 @@ HRESULT STDMETHODCALLTYPE WrappedIMMDevice::Activate(
         }
         std::lock_guard initialize_guard(hooks::audio::INITIALIZE_LOCK, std::adopt_lock);
 
-        // release old audio client if initialized
-        if (hooks::audio::CLIENT) {
-            hooks::audio::CLIENT->Release();
-        }
-
         IAudioClient *client = nullptr;
         if (iid == IID_IAudioClient) {
             client = wrap_audio_client(reinterpret_cast<IAudioClient *>(*ppInterface));
@@ -107,9 +102,6 @@ HRESULT STDMETHODCALLTYPE WrappedIMMDevice::Activate(
             client = wrap_audio_client3(reinterpret_cast<IAudioClient3 *>(*ppInterface));
         }
         *ppInterface = client;
-        // persist the audio client
-        hooks::audio::CLIENT = client;
-        hooks::audio::CLIENT->AddRef();
 
     } else if (iid == __uuidof(IAudioEndpointVolume) && hooks::audio::VOLUME_HOOK_ENABLED) {
         *ppInterface = new WrappedIAudioEndpointVolume(reinterpret_cast<IAudioEndpointVolume *>(*ppInterface));

src/spice2x/hooks/audio/backends/mmdevice/null_device.cpp

@@ -153,19 +153,9 @@ HRESULT STDMETHODCALLTYPE NullMMDevice::Activate(
     log_info("audio::null", "NullMMDevice::Activate {}", guid2s(iid));
 
     if (iid == IID_IAudioClient) {
-
-        // release any previously persisted client
-        if (hooks::audio::CLIENT != nullptr) {
-            hooks::audio::CLIENT->Release();
-        }
-
         auto *client = static_cast<IAudioClient *>(new DummyIAudioClient(new NullDiscardBackend()));
         *ppInterface = client;
 
-        // persist the audio client
-        hooks::audio::CLIENT = client;
-        hooks::audio::CLIENT->AddRef();
-
         return S_OK;
     }
 

src/spice2x/hooks/audio/backends/mmdevice/null_discard_backend.cpp

@@ -2,10 +2,10 @@
 
 #include <algorithm>
 #include <chrono>
+#include <thread>
 
 #include "hooks/audio/util.h"
 #include "util/logging.h"
-#include "util/precise_timer.h"
 
 NullDiscardBackend::~NullDiscardBackend() {
     this->running = false;
@@ -125,8 +125,6 @@ HRESULT NullDiscardBackend::on_release_buffer(uint32_t, DWORD) {
 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>(
@@ -136,6 +134,6 @@ void NullDiscardBackend::pace_loop() {
         if (this->relay_handle) {
             SetEvent(this->relay_handle);
         }
-        timer.sleep(period);
+        std::this_thread::sleep_for(period);
     }
 }

src/spice2x/hooks/audio/backends/wasapi/audio_client.cpp

@@ -302,6 +302,7 @@ HRESULT STDMETHODCALLTYPE WrappedIAudioClient::Initialize(
                 device_format->nChannels * (device_format->wBitsPerSample / 8));
     }
 
+    hooks::audio::set_active_client(this, "WrappedIAudioClient::Initialize");
     return ret;
 }
 HRESULT STDMETHODCALLTYPE WrappedIAudioClient::GetBufferSize(UINT32 *pNumBufferFrames) {
@@ -651,5 +652,6 @@ HRESULT STDMETHODCALLTYPE WrappedIAudioClient::InitializeSharedAudioStream(
     log_info("audio::wasapi", "IAudioClient3::InitializeSharedAudioStream success, hr={}", FMT_HRESULT(ret));
     copy_wave_format(&hooks::audio::FORMAT, pFormat);
     copy_wave_format(&this->device_format, pFormat);
+    hooks::audio::set_active_client(this, "WrappedIAudioClient::InitializeSharedAudioStream");
     return ret;
 }

src/spice2x/hooks/audio/backends/wasapi/dummy_audio_client.cpp

@@ -75,13 +75,17 @@ HRESULT STDMETHODCALLTYPE DummyIAudioClient::Initialize(
     log_info("audio::wasapi", "IAudioClient::Initialize hook hit");
     print_format(ShareMode, StreamFlags, hnsBufferDuration, hnsPeriodicity, pFormat);
 
-    CHECK_RESULT(this->backend->on_initialize(
+    HRESULT ret = this->backend->on_initialize(
         &ShareMode,
         &StreamFlags,
         &hnsBufferDuration,
         &hnsPeriodicity,
         pFormat,
-        AudioSessionGuid));
+        AudioSessionGuid);
+    if (SUCCEEDED(ret)) {
+        hooks::audio::set_active_client(this, "DummyIAudioClient::Initialize");
+    }
+    CHECK_RESULT(ret);
 }
 HRESULT STDMETHODCALLTYPE DummyIAudioClient::GetBufferSize(UINT32 *pNumBufferFrames) {
     static std::once_flag printed;

src/spice2x/hooks/audio/xact.cpp

@@ -0,0 +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);
+    }
+}

src/spice2x/hooks/audio/xact.h

@@ -0,0 +1,5 @@
+#pragma once
+
+namespace hooks::audio::xact {
+    void init();
+}

src/spice2x/hooks/graphics/graphics.cpp

@@ -23,12 +23,13 @@
 #include "launcher/shutdown.h"
 #include "overlay/overlay.h"
 #include "touch/touch.h"
-#include "touch/touch_indicators.h"
+#include "touch/touch_gestures.h"
 #include "util/detour.h"
 #include "util/logging.h"
 #include "util/fileutils.h"
 #include "util/utils.h"
 #include "misc/wintouchemu.h"
+#include "touch/native/inject.h"
 #include "util/time.h"
 #include "rawinput/rawinput.h"
 
@@ -188,11 +189,13 @@ static bool gitadora_should_block_game_window_placement(HWND hWnd) {
     }
 
     const auto window_name = gitadora_window_name_for_hwnd(hWnd);
-    return window_name != nullptr && graphics_gitadora_has_window_monitor(window_name);
+    return window_name != nullptr && graphics_gitadora_has_window_override(window_name);
 }
 
 static void gitadora_remember_window(HWND hWnd, const std::string &window_name) {
-    if (window_name == "LEFT") {
+    if (window_name == "GITADORA") {
+        GRAPHICS_HOOKED_WINDOW = hWnd;
+    } else if (window_name == "LEFT") {
         GFDM_LEFT_WINDOW = hWnd;
     } else if (window_name == "RIGHT") {
         GFDM_RIGHT_WINDOW = hWnd;
@@ -589,6 +592,12 @@ static HWND WINAPI CreateWindowExA_hook(DWORD dwExStyle, LPCSTR lpClassName, LPC
             hWndParent, hMenu, hInstance, lpParam);
     GRAPHICS_WINDOWS.push_back(result);
 
+    // remember these windows now because full capture happens later during D3D
+    // initialization; placement calls before then can undo creation-time overrides
+    if (result != nullptr && is_gfdm_window && !is_gfdm_sub_window) {
+        gitadora_remember_window(result, gfdm_window_name);
+    }
+
     // theme the native title bar (dark/light)
     set_window_dark_titlebar(result);
 
@@ -609,9 +618,6 @@ static HWND WINAPI CreateWindowExA_hook(DWORD dwExStyle, LPCSTR lpClassName, LPC
     }
 
     // only hook touch window if multiple windows are allowed
-    if (gfdm_window_name == "LEFT" || gfdm_window_name == "RIGHT") {
-        gitadora_remember_window(result, gfdm_window_name);
-    }
     if (is_gfdm_sub_window && GRAPHICS_WINDOWED && !GRAPHICS_PREVENT_SECONDARY_WINDOWS) {
         gitadora_remember_window(result, gfdm_window_name);
         graphics_hook_subscreen_window(GFDM_SUBSCREEN_WINDOW);
@@ -627,7 +633,7 @@ static HWND WINAPI CreateWindowExA_hook(DWORD dwExStyle, LPCSTR lpClassName, LPC
         }
     }
 
-    disable_touch_indicators(result);
+    disable_touch_gestures(result);
     log_misc(
         "graphics",
         "CreateWindowExA returned {}, {}",
@@ -722,7 +728,7 @@ static HWND WINAPI CreateWindowExW_hook(DWORD dwExStyle, LPCWSTR lpClassName, LP
         fmt::ptr(result),
         lpWindowName ? ws2s(lpWindowName) : "(null)");
 
-    disable_touch_indicators(result);
+    disable_touch_gestures(result);
     return result;
 }
 
@@ -797,7 +803,11 @@ static BOOL WINAPI MoveWindow_hook(HWND hWnd, int X, int Y, int nWidth, int nHei
             nWidth = rect.right - rect.left;
             nHeight = rect.bottom - rect.top;
 
-            touch_attach_wnd(TDJ_SUBSCREEN_WINDOW);
+            if (games::iidx::NATIVE_TOUCH) {
+                nativetouch::inject::register_and_attach_window(TDJ_SUBSCREEN_WINDOW);
+            } else {
+                touch_attach_wnd(TDJ_SUBSCREEN_WINDOW);
+            }
         } else {
             // Existing behaviour: suppress subscreen window and prompt user to use overlay instead
              log_info(
@@ -950,6 +960,13 @@ static BOOL WINAPI ShowWindow_hook(HWND hWnd, int nCmdShow) {
         return true;
     }
 
+    if (games::iidx::TDJ_MODE &&
+        GRAPHICS_PREVENT_SECONDARY_WINDOWS &&
+        hWnd == TDJ_SUBSCREEN_WINDOW) {
+        log_info("graphics", "ShowWindow_hook - hiding sub window {}", fmt::ptr(hWnd));
+        return true;
+    }
+
     // call original
     return ShowWindow_orig(hWnd, nCmdShow);
 }
@@ -1163,6 +1180,14 @@ void graphics_hook_window(HWND hWnd, D3DPRESENT_PARAMETERS *pPresentationParamet
         WNDPROC_ORIG = reinterpret_cast<WNDPROC>(GetWindowLongPtrA(hWnd, GWLP_WNDPROC));
         SetWindowLongPtrA(hWnd, GWLP_WNDPROC, reinterpret_cast<LONG_PTR>(WindowProc));
 
+        const bool native_touch_overlay =
+            (games::iidx::NATIVE_TOUCH && games::iidx::TDJ_MODE && !GRAPHICS_IIDX_WSUB) ||
+            (games::popn::NATIVE_TOUCH &&
+             games::popn::is_pikapika_model() && GRAPHICS_PREVENT_SECONDARY_WINDOWS);
+        if (native_touch_overlay) {
+            nativetouch::inject::register_and_attach_window(hWnd);
+        }
+
         // NOLEGACY causes WM_CHAR to be not received
         // reflec beat game engine does not pass WM_CHAR through for some reason (unrelated to SpiceTouch)
         if (!rawinput::NOLEGACY && !(avs::game::is_model({"KBR", "LBR", "MBR"}))) {

src/spice2x/hooks/graphics/graphics.h

@@ -88,6 +88,8 @@ extern std::string GRAPHICS_GITADORA_MAIN_MONITOR;
 extern std::string GRAPHICS_GITADORA_LEFT_MONITOR;
 extern std::string GRAPHICS_GITADORA_RIGHT_MONITOR;
 extern std::string GRAPHICS_GITADORA_SMALL_MONITOR;
+extern std::optional<std::string> GRAPHICS_GITADORA_SMALL_SIZE;
+extern std::optional<std::string> GRAPHICS_GITADORA_SMALL_POS;
 
 extern bool GRAPHICS_IIDX_WSUB;
 extern std::optional<std::string> GRAPHICS_WSUB_SIZE;
@@ -157,7 +159,7 @@ bool graphics_gitadora_apply_window_monitor(
         int &width,
         int &height,
         bool log_change);
-bool graphics_gitadora_has_window_monitor(const std::string &window_name);
+bool graphics_gitadora_has_window_override(const std::string &window_name);
 
 void change_primary_monitor(const std::string &monitor_name);
 void update_monitor_on_boot(

src/spice2x/hooks/graphics/graphics_windowed.cpp

@@ -30,6 +30,8 @@ std::string GRAPHICS_GITADORA_MAIN_MONITOR;
 std::string GRAPHICS_GITADORA_LEFT_MONITOR;
 std::string GRAPHICS_GITADORA_RIGHT_MONITOR;
 std::string GRAPHICS_GITADORA_SMALL_MONITOR;
+std::optional<std::string> GRAPHICS_GITADORA_SMALL_SIZE;
+std::optional<std::string> GRAPHICS_GITADORA_SMALL_POS;
 
 // IIDX Windowed Subscreen - starts out as false, enabled by IIDX module on pre-attach as needed
 bool GRAPHICS_IIDX_WSUB = false;
@@ -89,9 +91,12 @@ static const std::string &graphics_gitadora_monitor_for_window_name(
     return empty;
 }
 
-bool graphics_gitadora_has_window_monitor(const std::string &window_name) {
+bool graphics_gitadora_has_window_override(const std::string &window_name) {
     const auto &monitor_name = graphics_gitadora_monitor_for_window_name(window_name);
-    return !monitor_name.empty();
+    return !monitor_name.empty() ||
+        (window_name == "SMALL" &&
+            (GRAPHICS_GITADORA_SMALL_SIZE.has_value() ||
+             GRAPHICS_GITADORA_SMALL_POS.has_value()));
 }
 
 static bool graphics_monitor_rect_from_name(
@@ -212,7 +217,11 @@ bool graphics_gitadora_apply_window_monitor(
         int &width,
         int &height,
         bool log_change) {
-    return graphics_gitadora_apply_monitor_rect(
+    if (!GRAPHICS_WINDOWED || !games::gitadora::is_arena_model()) {
+        return false;
+    }
+
+    bool applied = graphics_gitadora_apply_monitor_rect(
         graphics_gitadora_monitor_for_window_name(window_name),
         window_name,
         x,
@@ -220,6 +229,42 @@ bool graphics_gitadora_apply_window_monitor(
         width,
         height,
         log_change);
+
+    if (window_name != "SMALL") {
+        return applied;
+    }
+
+    std::pair<uint32_t, uint32_t> result;
+    if (GRAPHICS_GITADORA_SMALL_SIZE.has_value()) {
+        if (parse_width_height(GRAPHICS_GITADORA_SMALL_SIZE.value(), result)) {
+            width = result.first;
+            height = result.second;
+            applied = true;
+        } else {
+            log_fatal("graphics-windowed", "failed to parse -gdwsmallsize");
+        }
+    }
+    if (GRAPHICS_GITADORA_SMALL_POS.has_value()) {
+        if (parse_width_height(GRAPHICS_GITADORA_SMALL_POS.value(), result)) {
+            x = result.first;
+            y = result.second;
+            applied = true;
+        } else {
+            log_fatal("graphics-windowed", "failed to parse -gdwsmallpos");
+        }
+    }
+
+    if (applied && log_change &&
+        (GRAPHICS_GITADORA_SMALL_SIZE.has_value() || GRAPHICS_GITADORA_SMALL_POS.has_value())) {
+        log_info(
+            "graphics-windowed",
+            "GITADORA SMALL custom override: pos=({}, {}), size={}x{}",
+            x,
+            y,
+            width,
+            height);
+    }
+    return applied;
 }
 
 void graphics_capture_initial_window(HWND hWnd) {
@@ -254,7 +299,7 @@ void graphics_capture_initial_window(HWND hWnd) {
     cfg::SCREENRESIZE->init_client_width = client_w;
     cfg::SCREENRESIZE->init_client_height = client_h;
     cfg::SCREENRESIZE->init_client_aspect_ratio = (float)client_w / (float)client_h;
-    log_debug(
+    log_misc(
         "graphics-windowed",
         "[{}] graphics_capture_initial_window initial window size {}x{}, ratio {}",
         fmt::ptr(hWnd),

src/spice2x/hooks/graphics/nvapi_hook.cpp

@@ -1,5 +1,6 @@
 #include "external/nvapi/nvapi.h"
 #include "external/nvapi/NvApiDriverSettings.h"
+#include "avs/game.h"
 #include "hooks/libraryhook.h"
 #include "util/detour.h"
 #include "util/libutils.h"
@@ -12,14 +13,21 @@ namespace nvapi_hook {
     bool BYPASS_NVAPI = false;
 
     typedef uintptr_t *(*NvAPI_QueryInterface_t)(unsigned int);
+
     static NvAPI_QueryInterface_t NvAPI_QueryInterface_orig = nullptr;
+    static decltype(NvAPI_GPU_GetConnectedDisplayIds) *NvAPI_GPU_GetConnectedDisplayIds_orig = nullptr;
+    static decltype(NvAPI_DISP_GetGDIPrimaryDisplayId) *NvAPI_DISP_GetGDIPrimaryDisplayId_orig = nullptr;
 
     static uintptr_t* __cdecl NvAPI_QueryInterface_hook(unsigned int func_code);
+    static NvAPI_Status __cdecl NvAPI_GPU_GetConnectedDisplayIds_hook(
+        NvPhysicalGpuHandle hPhysicalGpu,
+        NV_GPU_DISPLAYIDS *pDisplayIds,
+        NvU32 *pDisplayIdCount,
+        NvU32 flags);
     static NvAPI_Status __cdecl NvAPI_DISP_SetDisplayConfig_hook(
         NvU32 pathInfoCount, NV_DISPLAYCONFIG_PATH_INFO *pathInfo, NvU32 flags);
 
     void initialize(HINSTANCE dll) {
-
 #ifdef SPICE64
         std::string nvapi_dll = "nvapi64.dll";
 #else
@@ -40,6 +48,18 @@ namespace nvapi_hook {
             return nullptr;
         }
 
+        // spoof display connector types only for SDVX
+        if (func_code == 0x0078DBA2 && avs::game::is_model("KFC")) {
+            NvAPI_GPU_GetConnectedDisplayIds_orig =
+                reinterpret_cast<decltype(NvAPI_GPU_GetConnectedDisplayIds) *>(
+                    NvAPI_QueryInterface_orig(func_code));
+            NvAPI_DISP_GetGDIPrimaryDisplayId_orig =
+                reinterpret_cast<decltype(NvAPI_DISP_GetGDIPrimaryDisplayId) *>(
+                    NvAPI_QueryInterface_orig(0x1E9D8A31));
+            log_misc("nvapi_hook", "NvAPI_QueryInterface(NvAPI_GPU_GetConnectedDisplayIds) - hooked");
+            return (uintptr_t *)NvAPI_GPU_GetConnectedDisplayIds_hook;
+        }
+
         // NvAPI_DISP_SetDisplayConfig
         if (func_code == 0x5D8CF8DE) { 
             log_misc("nvapi_hook", "NvAPI_QueryInterface(NvAPI_DISP_SetDisplayConfig) - hooked");
@@ -51,8 +71,53 @@ namespace nvapi_hook {
         return NvAPI_QueryInterface_orig(func_code);
     }
 
+    NvAPI_Status __cdecl NvAPI_GPU_GetConnectedDisplayIds_hook(
+            NvPhysicalGpuHandle hPhysicalGpu,
+            NV_GPU_DISPLAYIDS *pDisplayIds,
+            NvU32 *pDisplayIdCount,
+            NvU32 flags) {
+
+        if (NvAPI_GPU_GetConnectedDisplayIds_orig == nullptr) {
+            return NVAPI_NO_IMPLEMENTATION;
+        }
+
+        const NvAPI_Status status = NvAPI_GPU_GetConnectedDisplayIds_orig(
+            hPhysicalGpu,
+            pDisplayIds,
+            pDisplayIdCount,
+            flags);
+
+        if (status != NVAPI_OK || pDisplayIds == nullptr || pDisplayIdCount == nullptr ||
+            NvAPI_DISP_GetGDIPrimaryDisplayId_orig == nullptr) {
+            return status;
+        }
+
+        NvU32 primary_display_id = 0;
+        if (NvAPI_DISP_GetGDIPrimaryDisplayId_orig(&primary_display_id) != NVAPI_OK) {
+            return status;
+        }
+
+        // report the primary display adapter as DP and all other displays as HDMI
+        // (the game expects this since the VM cab is like that)
+        //
+        // this doesn't actually affect gameplay; only how
+        //    NvDisplayConfig: MainDisplay={}hz / SubDisplay={}hz
+        // gets printed.
+        //
+        // for the actual value that matters for gameplay, it's this:
+        //     NvDisplayConfig: GetMainDisplayRefreshRate = {}hz
+        for (NvU32 index = 0; index < *pDisplayIdCount; index++) {
+            auto &display = pDisplayIds[index];
+            display.connectorType = display.displayId == primary_display_id ?
+                NV_MONITOR_CONN_TYPE_DP : NV_MONITOR_CONN_TYPE_HDMI;
+        }
+
+        return status;
+    }
+
     NvAPI_Status __cdecl NvAPI_DISP_SetDisplayConfig_hook(
         NvU32 pathInfoCount, NV_DISPLAYCONFIG_PATH_INFO *pathInfo, NvU32 flags) {
+        // do not let the game apply its emulated cabinet topology to Windows
         log_misc("nvapi_hook", "NvAPI_DISP_SetDisplayConfig_hook - do nothing and return");
         return NVAPI_OK;
     }

src/spice2x/hooks/graphics/nvapi_impl.cpp

@@ -0,0 +1,480 @@
+#include "nvapi_impl.h"
+
+#ifdef SPICE64
+
+#include <algorithm>
+#include <vector>
+
+#include <windows.h>
+
+#include "external/nvapi/nvapi.h"
+#include "hooks/libraryhook.h"
+#include "util/logging.h"
+#include "util/sysutils.h"
+
+namespace nvapi_impl {
+
+namespace {
+
+constexpr unsigned int NVAPI_INITIALIZE_ID = 0x0150E828;
+constexpr unsigned int NVAPI_INITIALIZE_EX_ID = 0xAD298D3F;
+constexpr unsigned int NVAPI_UNLOAD_ID = 0xD22BDD7E;
+constexpr unsigned int NVAPI_ENUM_PHYSICAL_GPUS_ID = 0xE5AC921F;
+constexpr unsigned int NVAPI_GPU_GET_CONNECTED_DISPLAY_IDS_ID = 0x0078DBA2;
+constexpr unsigned int NVAPI_DISP_GET_GDI_PRIMARY_DISPLAY_ID = 0x1E9D8A31;
+constexpr unsigned int NVAPI_DISP_GET_DISPLAY_CONFIG_ID = 0x11ABCCF8;
+constexpr unsigned int NVAPI_DISP_SET_DISPLAY_CONFIG_ID = 0x5D8CF8DE;
+
+constexpr char NVAPI_DLL_NAME_A[] = "nvapi64.dll";
+
+struct SyntheticDisplay {
+    NvU32 display_id;
+    NvU32 width;
+    NvU32 height;
+    NvU32 color_depth;
+    NvS32 x;
+    NvS32 y;
+    NvU32 refresh_rate_1k;
+    NV_ROTATE rotation;
+    bool primary;
+};
+
+static bool provider_initialized = false;
+static bool nvapi_initialized = false;
+static int gpu_handle_storage = 0;
+// snapshot of the Win32 display state exposed through synthetic NVAPI
+static std::vector<SyntheticDisplay> displays;
+
+static NvPhysicalGpuHandle get_gpu_handle() {
+    return reinterpret_cast<NvPhysicalGpuHandle>(&gpu_handle_storage);
+}
+
+static NV_ROTATE get_rotation(DWORD orientation) {
+    switch (orientation) {
+        case DMDO_90:
+            return NV_ROTATE_90;
+        case DMDO_180:
+            return NV_ROTATE_180;
+        case DMDO_270:
+            return NV_ROTATE_270;
+        default:
+            return NV_ROTATE_0;
+    }
+}
+
+static std::vector<SyntheticDisplay> enumerate_displays(
+        uint32_t main_refresh_hz,
+        uint32_t sub_refresh_hz) {
+
+    std::vector<SyntheticDisplay> result;
+
+    // reuse the active monitor list, then read live modes after -mainmonitor changes
+    for (const auto &monitor : sysutils::enumerate_monitors()) {
+        DEVMODEA mode {};
+        mode.dmSize = sizeof(mode);
+        if (!EnumDisplaySettingsExA(
+                monitor.display_name.c_str(),
+                ENUM_CURRENT_SETTINGS,
+                &mode,
+                0)) {
+            continue;
+        }
+
+        const bool primary = mode.dmPosition.x == 0 && mode.dmPosition.y == 0;
+        result.push_back({
+            .display_id = 0,
+            .width = mode.dmPelsWidth,
+            .height = mode.dmPelsHeight,
+            .color_depth = mode.dmBitsPerPel > 0 ? mode.dmBitsPerPel : 32,
+            .x = mode.dmPosition.x,
+            .y = mode.dmPosition.y,
+            .refresh_rate_1k = 0,
+            .rotation = get_rotation(mode.dmDisplayOrientation),
+            .primary = primary,
+        });
+    }
+
+    std::stable_sort(result.begin(), result.end(), [](const auto &left, const auto &right) {
+        return left.primary && !right.primary;
+    });
+
+    if (result.size() > 2) {
+        result.resize(2);
+    }
+
+    if (result.empty()) {
+        result.push_back({
+            .display_id = 0,
+            .width = 1920,
+            .height = 1080,
+            .color_depth = 32,
+            .x = 0,
+            .y = 0,
+            .refresh_rate_1k = 0,
+            .rotation = NV_ROTATE_0,
+            .primary = true,
+        });
+    }
+
+    for (size_t index = 0; index < result.size(); index++) {
+        auto &display = result[index];
+        display.primary = index == 0;
+        display.display_id = 0x80000000u | static_cast<NvU32>(index + 1);
+        const uint32_t refresh_hz = index == 0 ? main_refresh_hz : sub_refresh_hz;
+        display.refresh_rate_1k = refresh_hz * 1000;
+    }
+
+    return result;
+}
+
+// initializes NVAPI for the calling process.
+// marks the synthetic provider initialized without contacting a driver.
+static NvAPI_Status __cdecl NvAPI_Initialize_impl() {
+    log_misc("nvapi_impl", "NvAPI_Initialize");
+    nvapi_initialized = true;
+    return NVAPI_OK;
+}
+
+// initializes NVAPI with additional client flags.
+// accepts the flags and marks the synthetic provider initialized.
+static NvAPI_Status __cdecl NvAPI_InitializeEx_impl(NvU32 flags) {
+    log_misc("nvapi_impl", "NvAPI_InitializeEx(flags={:#x})", flags);
+    nvapi_initialized = true;
+    return NVAPI_OK;
+}
+
+// releases NVAPI state held for the calling process.
+// clears the synthetic initialization state while leaving the provider installed.
+static NvAPI_Status __cdecl NvAPI_Unload_impl() {
+    log_misc("nvapi_impl", "NvAPI_Unload");
+    nvapi_initialized = false;
+    return NVAPI_OK;
+}
+
+// enumerates physical GPU handles managed by the NVIDIA driver.
+// returns one stable synthetic GPU containing all exposed displays.
+static NvAPI_Status __cdecl NvAPI_EnumPhysicalGPUs_impl(
+        NvPhysicalGpuHandle gpu_handles[NVAPI_MAX_PHYSICAL_GPUS],
+        NvU32 *gpu_count) {
+
+    log_misc(
+        "nvapi_impl",
+        "NvAPI_EnumPhysicalGPUs(handles={}, count={})",
+        fmt::ptr(gpu_handles),
+        fmt::ptr(gpu_count));
+
+    if (!nvapi_initialized) {
+        return NVAPI_API_NOT_INITIALIZED;
+    }
+    if (gpu_handles == nullptr || gpu_count == nullptr) {
+        return NVAPI_INVALID_ARGUMENT;
+    }
+
+    gpu_handles[0] = get_gpu_handle();
+    *gpu_count = 1;
+    log_misc(
+        "nvapi_impl",
+        "NvAPI_EnumPhysicalGPUs - gpu={}, count={}",
+        fmt::ptr(gpu_handles[0]),
+        *gpu_count);
+    return NVAPI_OK;
+}
+
+// returns connected display descriptors for a physical GPU.
+// exposes the monitor snapshot as DP primary and HDMI secondary displays.
+static NvAPI_Status __cdecl NvAPI_GPU_GetConnectedDisplayIds_impl(
+        NvPhysicalGpuHandle gpu_handle,
+        NV_GPU_DISPLAYIDS *display_ids,
+        NvU32 *display_id_count,
+        NvU32 flags) {
+
+    const NvU32 input_count = display_id_count != nullptr ? *display_id_count : 0;
+    log_misc(
+        "nvapi_impl",
+        "NvAPI_GPU_GetConnectedDisplayIds(gpu={}, ids={}, count={}, flags={:#x})",
+        fmt::ptr(gpu_handle),
+        fmt::ptr(display_ids),
+        input_count,
+        flags);
+
+    if (!nvapi_initialized) {
+        return NVAPI_API_NOT_INITIALIZED;
+    }
+    if (gpu_handle != get_gpu_handle()) {
+        return NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE;
+    }
+    if (display_id_count == nullptr) {
+        return NVAPI_INVALID_ARGUMENT;
+    }
+
+    const NvU32 required_count = static_cast<NvU32>(displays.size());
+    if (display_ids == nullptr) {
+        *display_id_count = required_count;
+        log_misc(
+            "nvapi_impl",
+            "NvAPI_GPU_GetConnectedDisplayIds - required_count={}",
+            required_count);
+        return NVAPI_OK;
+    }
+
+    const NvU32 capacity = *display_id_count;
+    *display_id_count = required_count;
+    if (capacity < required_count) {
+        return NVAPI_INSUFFICIENT_BUFFER;
+    }
+
+    for (NvU32 index = 0; index < required_count; index++) {
+        const auto &source = displays[index];
+        auto &destination = display_ids[index];
+        destination = {};
+        destination.version = NV_GPU_DISPLAYIDS_VER;
+        destination.connectorType = source.primary ?
+            NV_MONITOR_CONN_TYPE_DP : NV_MONITOR_CONN_TYPE_HDMI;
+        destination.displayId = source.display_id;
+        destination.isActive = 1;
+        destination.isOSVisible = 1;
+        destination.isConnected = 1;
+        destination.isPhysicallyConnected = 1;
+    }
+
+    log_misc(
+        "nvapi_impl",
+        "NvAPI_GPU_GetConnectedDisplayIds - returned_count={}",
+        required_count);
+    return NVAPI_OK;
+}
+
+// returns the NVAPI display ID associated with the Windows GDI primary.
+// returns the first synthetic display, ordered from the live desktop origin.
+static NvAPI_Status __cdecl NvAPI_DISP_GetGDIPrimaryDisplayId_impl(NvU32 *display_id) {
+    log_misc(
+        "nvapi_impl",
+        "NvAPI_DISP_GetGDIPrimaryDisplayId(display_id={})",
+        fmt::ptr(display_id));
+
+    if (!nvapi_initialized) {
+        return NVAPI_API_NOT_INITIALIZED;
+    }
+    if (display_id == nullptr || displays.empty()) {
+        return NVAPI_INVALID_ARGUMENT;
+    }
+
+    *display_id = displays.front().display_id;
+    log_misc(
+        "nvapi_impl",
+        "NvAPI_DISP_GetGDIPrimaryDisplayId - display_id={:#x}",
+        *display_id);
+    return NVAPI_OK;
+}
+
+static void fill_source_mode(
+        NV_DISPLAYCONFIG_SOURCE_MODE_INFO *destination,
+        const SyntheticDisplay &source) {
+
+    if (destination == nullptr) {
+        return;
+    }
+
+    *destination = {};
+    destination->resolution.width = source.width;
+    destination->resolution.height = source.height;
+    destination->resolution.colorDepth = source.color_depth;
+    destination->colorFormat = NV_FORMAT_A8R8G8B8;
+    destination->position.x = source.x;
+    destination->position.y = source.y;
+    destination->spanningOrientation = NV_DISPLAYCONFIG_SPAN_NONE;
+    destination->bGDIPrimary = source.primary ? 1 : 0;
+}
+
+static NvAPI_Status fill_target(
+        NV_DISPLAYCONFIG_PATH_TARGET_INFO *destination,
+        const SyntheticDisplay &source,
+        NvU32 target_id) {
+
+    if (destination == nullptr) {
+        return NVAPI_OK;
+    }
+
+    auto *details = destination->details;
+    destination->displayId = source.display_id;
+    destination->targetId = target_id;
+
+    if (details == nullptr) {
+        return NVAPI_OK;
+    }
+    if (details->version != NV_DISPLAYCONFIG_PATH_ADVANCED_TARGET_INFO_VER) {
+        return NVAPI_INCOMPATIBLE_STRUCT_VERSION;
+    }
+
+    *details = {};
+    details->version = NV_DISPLAYCONFIG_PATH_ADVANCED_TARGET_INFO_VER;
+    details->rotation = source.rotation;
+    details->scaling = NV_SCALING_DEFAULT;
+    details->refreshRate1K = source.refresh_rate_1k;
+    details->timingOverride = NV_TIMING_OVERRIDE_CURRENT;
+    return NVAPI_OK;
+}
+
+// retrieves the current global display topology through NVAPI's three-pass contract.
+// fills caller-owned buffers from the synthetic monitor snapshot and configured rates.
+static NvAPI_Status __cdecl NvAPI_DISP_GetDisplayConfig_impl(
+        NvU32 *path_info_count,
+        NV_DISPLAYCONFIG_PATH_INFO *path_info) {
+
+    const NvU32 input_count = path_info_count != nullptr ? *path_info_count : 0;
+    log_misc(
+        "nvapi_impl",
+        "NvAPI_DISP_GetDisplayConfig(count={}, paths={})",
+        input_count,
+        fmt::ptr(path_info));
+
+    if (!nvapi_initialized) {
+        return NVAPI_API_NOT_INITIALIZED;
+    }
+    if (path_info_count == nullptr) {
+        return NVAPI_INVALID_ARGUMENT;
+    }
+
+    const NvU32 required_count = static_cast<NvU32>(displays.size());
+    if (path_info == nullptr) {
+        *path_info_count = required_count;
+        log_misc(
+            "nvapi_impl",
+            "NvAPI_DISP_GetDisplayConfig - required_count={}",
+            required_count);
+        return NVAPI_OK;
+    }
+
+    const NvU32 capacity = *path_info_count;
+    *path_info_count = required_count;
+    if (capacity < required_count) {
+        return NVAPI_INSUFFICIENT_BUFFER;
+    }
+
+    for (NvU32 index = 0; index < required_count; index++) {
+        auto &path = path_info[index];
+        if (path.version != NV_DISPLAYCONFIG_PATH_INFO_VER2) {
+            return NVAPI_INCOMPATIBLE_STRUCT_VERSION;
+        }
+        if (path.targetInfo != nullptr && path.targetInfoCount < 1) {
+            return NVAPI_INSUFFICIENT_BUFFER;
+        }
+
+        const auto &display = displays[index];
+        path.sourceId = index;
+        path.targetInfoCount = 1;
+        path.IsNonNVIDIAAdapter = 0;
+        path.pOSAdapterID = nullptr;
+        fill_source_mode(path.sourceModeInfo, display);
+
+        const NvAPI_Status status = fill_target(path.targetInfo, display, index);
+        if (status != NVAPI_OK) {
+            return status;
+        }
+    }
+
+    log_misc(
+        "nvapi_impl",
+        "NvAPI_DISP_GetDisplayConfig - returned_count={}",
+        required_count);
+    return NVAPI_OK;
+}
+
+// applies a supplied global display topology through the NVIDIA driver.
+// accepts the cabinet topology without making any changes to Windows.
+static NvAPI_Status __cdecl NvAPI_DISP_SetDisplayConfig_impl(
+        NvU32 path_info_count,
+        NV_DISPLAYCONFIG_PATH_INFO *path_info,
+        NvU32 flags) {
+
+    log_misc(
+        "nvapi_impl",
+        "NvAPI_DISP_SetDisplayConfig(count={}, paths={}, flags={:#x})",
+        path_info_count,
+        fmt::ptr(path_info),
+        flags);
+
+    if (!nvapi_initialized) {
+        return NVAPI_API_NOT_INITIALIZED;
+    }
+
+    log_misc("nvapi_impl", "NvAPI_DISP_SetDisplayConfig - return synthetic success");
+    return NVAPI_OK;
+}
+
+template<typename T>
+static uintptr_t *query_result(T function) {
+    return reinterpret_cast<uintptr_t *>(function);
+}
+
+// resolves an NVAPI function ID to its implementation address.
+// exposes only the synthetic entry points used by KFC and rejects all others.
+static uintptr_t *__cdecl NvAPI_QueryInterface_impl(unsigned int function_id) {
+    uintptr_t *result = nullptr;
+    switch (function_id) {
+        case NVAPI_INITIALIZE_ID:
+            result = query_result(NvAPI_Initialize_impl);
+            break;
+        case NVAPI_INITIALIZE_EX_ID:
+            result = query_result(NvAPI_InitializeEx_impl);
+            break;
+        case NVAPI_UNLOAD_ID:
+            result = query_result(NvAPI_Unload_impl);
+            break;
+        case NVAPI_ENUM_PHYSICAL_GPUS_ID:
+            result = query_result(NvAPI_EnumPhysicalGPUs_impl);
+            break;
+        case NVAPI_GPU_GET_CONNECTED_DISPLAY_IDS_ID:
+            result = query_result(NvAPI_GPU_GetConnectedDisplayIds_impl);
+            break;
+        case NVAPI_DISP_GET_GDI_PRIMARY_DISPLAY_ID:
+            result = query_result(NvAPI_DISP_GetGDIPrimaryDisplayId_impl);
+            break;
+        case NVAPI_DISP_GET_DISPLAY_CONFIG_ID:
+            result = query_result(NvAPI_DISP_GetDisplayConfig_impl);
+            break;
+        case NVAPI_DISP_SET_DISPLAY_CONFIG_ID:
+            result = query_result(NvAPI_DISP_SetDisplayConfig_impl);
+            break;
+        default:
+            break;
+    }
+
+    log_misc(
+        "nvapi_impl",
+        "NvAPI_QueryInterface(0x{:x}) - {}",
+        function_id,
+        result != nullptr ? "implemented" : "unsupported");
+    return result;
+}
+
+}
+
+bool initialize(HINSTANCE dll, uint32_t main_refresh_hz, uint32_t sub_refresh_hz) {
+    if (provider_initialized) {
+        return true;
+    }
+    if (dll == nullptr) {
+        log_warning("nvapi_impl", "invalid synthetic module handle");
+        return false;
+    }
+
+    displays = enumerate_displays(main_refresh_hz, sub_refresh_hz);
+    libraryhook_hook_library(NVAPI_DLL_NAME_A, dll);
+    libraryhook_hook_proc("nvapi_QueryInterface", NvAPI_QueryInterface_impl);
+    libraryhook_enable();
+
+    provider_initialized = true;
+    log_info(
+        "nvapi_impl",
+        "synthetic {} enabled with {} display(s), main={} Hz, sub={} Hz",
+        NVAPI_DLL_NAME_A,
+        displays.size(),
+        main_refresh_hz,
+        sub_refresh_hz);
+    return true;
+}
+
+}
+
+#endif

src/spice2x/hooks/graphics/nvapi_impl.h

@@ -0,0 +1,14 @@
+#pragma once
+
+#ifdef SPICE64
+
+#include <cstdint>
+#include <windows.h>
+
+namespace nvapi_impl {
+
+bool initialize(HINSTANCE dll, uint32_t main_refresh_hz, uint32_t sub_refresh_hz);
+
+}
+
+#endif

src/spice2x/hooks/libraryhook.cpp

@@ -12,6 +12,7 @@ static robin_hood::unordered_map<std::string, FARPROC> PROCS;
 
 static decltype(LoadLibraryA) *LoadLibraryA_orig = nullptr;
 static decltype(LoadLibraryW) *LoadLibraryW_orig = nullptr;
+static decltype(LoadLibraryExW) *LoadLibraryExW_orig = nullptr;
 static decltype(GetModuleHandleA) *GetModuleHandleA_orig = nullptr;
 static decltype(GetModuleHandleW) *GetModuleHandleW_orig = nullptr;
 static decltype(GetProcAddress) *GetProcAddress_orig = nullptr;
@@ -44,6 +45,20 @@ static HMODULE WINAPI LoadLibraryW_hook(LPCWSTR lpFileName) {
     return LoadLibraryW_orig(lpFileName);
 }
 
+static HMODULE WINAPI LoadLibraryExW_hook(LPCWSTR lpFileName, HANDLE hFile, DWORD dwFlags) {
+
+    // check hooks
+    if (lpFileName) {
+        auto module = LIBRARIES_W.find(lpFileName);
+        if (module != LIBRARIES_W.end()) {
+            return module->second;
+        }
+    }
+
+    // fallback
+    return LoadLibraryExW_orig(lpFileName, hFile, dwFlags);
+}
+
 static HMODULE WINAPI GetModuleHandleA_hook(LPCSTR lpModuleName) {
 
     // check hooks
@@ -103,6 +118,7 @@ void libraryhook_enable(HMODULE module) {
     // detour
     detour::trampoline_try("kernel32.dll", "LoadLibraryA", LoadLibraryA_hook, &LoadLibraryA_orig);
     detour::trampoline_try("kernel32.dll", "LoadLibraryW", LoadLibraryW_hook, &LoadLibraryW_orig);
+    detour::trampoline_try("kernel32.dll", "LoadLibraryExW", LoadLibraryExW_hook, &LoadLibraryExW_orig);
     detour::trampoline_try("kernel32.dll", "GetModuleHandleA", GetModuleHandleA_hook, &GetModuleHandleA_orig);
     detour::trampoline_try("kernel32.dll", "GetModuleHandleW", GetModuleHandleW_hook, &GetModuleHandleW_orig);
     detour::trampoline_try("kernel32.dll", "GetProcAddress", GetProcAddress_hook, &GetProcAddress_orig);

src/spice2x/launcher/launcher.cpp

@@ -38,10 +38,10 @@
 #include "games/gitadora/gitadora.h"
 #include "games/hpm/hpm.h"
 #include "games/iidx/iidx.h"
+#include "games/iidx/poke.h"
 #ifdef SPICE64
 #include "games/iidx/camera.h"
 #endif
-#include "games/iidx/poke.h"
 #include "games/jb/jb.h"
 #include "games/mga/mga.h"
 #include "games/nost/nost.h"
@@ -49,6 +49,7 @@
 #include "games/popn/popn.h"
 #include "games/qma/qma.h"
 #include "games/rb/rb.h"
+#include "games/rb/touch_debug.h"
 #include "games/rf3d/rf3d.h"
 #include "games/sc/sc.h"
 #include "games/scotto/scotto.h"
@@ -101,7 +102,7 @@
 #include "misc/wintouchemu.h"
 #include "overlay/overlay.h"
 #include "overlay/notifications.h"
-#include "overlay/windows/patch_manager.h"
+#include "patcher/patch_manager.h"
 #include "overlay/windows/iidx_seg.h"
 #include "overlay/windows/obs.h"
 #include "rawinput/rawinput.h"
@@ -378,6 +379,7 @@ int main_implementation(int argc, char *argv[]) {
     }
     if (options[launcher::Options::spice2x_IIDXNoSub].value_bool()) {
         GRAPHICS_FORCE_SINGLE_ADAPTER = true;
+        GRAPHICS_PREVENT_SECONDARY_WINDOWS = true;
     }
     if (options[launcher::Options::spice2x_SDVXNoSub].value_bool()) {
         GRAPHICS_FORCE_SINGLE_ADAPTER = true;
@@ -427,9 +429,6 @@ int main_implementation(int argc, char *argv[]) {
 
     if (options[launcher::Options::spice2x_NoD3D9DeviceHook].value_bool()) {
         D3D9_DEVICE_HOOK_DISABLE = true;
-        // touch emulation gets disabled, might as well turn these on
-        games::iidx::NATIVE_TOUCH = true;
-        games::sdvx::NATIVETOUCH = true;
         // not strictly necessary as it will fail to init anyway, but cleaner to just disable it now
         overlay::ENABLED = false;
         // leaving these on without dx9hooks result in torn state and therefore failure to draw
@@ -489,9 +488,6 @@ int main_implementation(int argc, char *argv[]) {
     if (options[launcher::Options::LoadSoundVoltexModule].value_bool()) {
         attach_sdvx = true;
     }
-    if (options[launcher::Options::SDVXNativeTouch].value_bool()) {
-        games::sdvx::NATIVETOUCH = true;
-    }
     if (options[launcher::Options::spice2x_SDVXDigitalKnobSensitivity].is_active()) {
         games::sdvx::DIGITAL_KNOB_SENS = (uint8_t)
             options[launcher::Options::spice2x_SDVXDigitalKnobSensitivity].value_uint32();
@@ -592,9 +588,6 @@ int main_implementation(int argc, char *argv[]) {
     if (options[launcher::Options::spice2x_IIDXNoESpec].value_bool()) {
         games::iidx::DISABLE_ESPEC_IO = true;
     }
-    if (options[launcher::Options::spice2x_IIDXNativeTouch].value_bool()) {
-        games::iidx::NATIVE_TOUCH = true;
-    }
     // should come later since this will override a few settings
     if (options[launcher::Options::spice2x_IIDXWindowedTDJ].value_bool() ||
         (options[launcher::Options::IIDXTDJMode].value_bool() && GRAPHICS_WINDOWED)) {
@@ -642,9 +635,6 @@ int main_implementation(int argc, char *argv[]) {
     if (options[launcher::Options::PopnSubMonitorOverride].is_active()) {
         sysutils::SECOND_MONITOR_OVERRIDE = options[launcher::Options::PopnSubMonitorOverride].value_text();
     }
-    if (options[launcher::Options::PopnNativeTouch].value_bool()) {
-        games::popn::NATIVE_TOUCH = true;
-    }
     if (options[launcher::Options::PopnSubRedraw].value_bool()) {
         SUBSCREEN_FORCE_REDRAW = true;
     }
@@ -888,7 +878,7 @@ int main_implementation(int argc, char *argv[]) {
             options[launcher::Options::ScreenResizeConfigPath].value_text();
     }
     if (options[launcher::Options::PatchManagerConfigPath].is_active()) {
-        overlay::windows::PATCH_MANAGER_CFG_PATH_OVERRIDE =
+        patcher::PATCH_MANAGER_CFG_PATH_OVERRIDE =
             options[launcher::Options::PatchManagerConfigPath].value_text();
     }
     if (options[launcher::Options::PathToAppConfig].is_active()) {
@@ -1064,6 +1054,15 @@ int main_implementation(int argc, char *argv[]) {
     if (options[launcher::Options::InvertTouchCoordinates].value_bool()) {
         rawinput::touch::INVERTED = true;
     }
+    if (options[launcher::Options::RawInputTouchAspectRatio].is_active()) {
+        auto mode = options[launcher::Options::RawInputTouchAspectRatio].value_text();
+        if (mode == "on") {
+            rawinput::touch::ASPECT_COMPENSATION_MODE = rawinput::touch::AspectMode::On;
+        } else if (mode == "off") {
+            rawinput::touch::ASPECT_COMPENSATION_MODE = rawinput::touch::AspectMode::Off;
+        }
+        // "auto" leaves the default (per-game)
+    }
     // DisableTouchCardInsert is no longer honored in spice2x
     // if (options[launcher::Options::DisableTouchCardInsert].value_bool()) {
     //     SPICETOUCH_CARD_DISABLE = true;
@@ -1105,6 +1104,9 @@ int main_implementation(int argc, char *argv[]) {
     if (options[launcher::Options::DisableOverlay].value_bool()) {
         overlay::ENABLED = false;
     }
+    if (options[launcher::Options::OverlayKeyboardNavigation].value_bool()) {
+        overlay::ENABLE_KEYBOARD_NAVIGATION = true;
+    }
     if (options[launcher::Options::OverlayScaling].is_active() && !cfg::CONFIGURATOR_STANDALONE && !cfg_run) {
         const auto val = options[launcher::Options::OverlayScaling].value_uint32();
         if (10 <= val && val <= 400 && val != 100) {
@@ -1273,6 +1275,14 @@ int main_implementation(int argc, char *argv[]) {
         GRAPHICS_GITADORA_SMALL_MONITOR =
             options[launcher::Options::GitaDoraWindowedSmallMonitor].value_text();
     }
+    if (options[launcher::Options::GitaDoraWindowedSmallSize].is_active()) {
+        GRAPHICS_GITADORA_SMALL_SIZE =
+            options[launcher::Options::GitaDoraWindowedSmallSize].value_text();
+    }
+    if (options[launcher::Options::GitaDoraWindowedSmallPosition].is_active()) {
+        GRAPHICS_GITADORA_SMALL_POS =
+            options[launcher::Options::GitaDoraWindowedSmallPosition].value_text();
+    }
 
     // IIDX/SDVX Windowed Subscreen
     if (options[launcher::Options::spice2x_IIDXWindowedSubscreenSize].is_active()) {
@@ -1305,21 +1315,36 @@ int main_implementation(int argc, char *argv[]) {
             games::jb::TOUCH_ALGORITHM = games::jb::JubeatTouchAlgorithm::AcAccurate;
         } else if (options[launcher::Options::JubeatTouchAlgo].value_text() == "legacy") {
             games::jb::TOUCH_ALGORITHM = games::jb::JubeatTouchAlgorithm::Legacy;
+        } else if (options[launcher::Options::JubeatTouchAlgo].value_text() == "plus") {
+            games::jb::TOUCH_ALGORITHM = games::jb::JubeatTouchAlgorithm::Plus;
         } else {
             games::jb::TOUCH_ALGORITHM = games::jb::JubeatTouchAlgorithm::Improved;
         }
     }
+    if (options[launcher::Options::JubeatTouchDebug].is_active()) {
+        auto mode = options[launcher::Options::JubeatTouchDebug].value_text();
+        if (mode == "none") {
+            games::jb::TOUCH_DEBUG_OVERLAY = games::jb::JubeatTouchDebugMode::JbTouchDebugNone;
+        } else if (mode == "box") {
+            games::jb::TOUCH_DEBUG_OVERLAY = games::jb::JubeatTouchDebugMode::JbTouchDebugBox;
+        } else if (mode == "all") {
+            games::jb::TOUCH_DEBUG_OVERLAY = games::jb::JubeatTouchDebugMode::JbTouchDebugAll;
+        } else {
+            games::jb::TOUCH_DEBUG_OVERLAY = games::jb::JubeatTouchDebugMode::JbTouchDebugAuto;
+        }
+    }
+
+    if (options[launcher::Options::JubeatTouchDebounce].is_active()) {
+        games::jb::TOUCH_DEBOUNCE_MS =
+            options[launcher::Options::JubeatTouchDebounce].value_uint32();
+    }
 
     // reflec beat touch emulation
+    games::rb::TOUCH_DEBUG_OVERLAY = options[launcher::Options::RBTouchDebug].value_bool();
     if (options[launcher::Options::spice2x_RBTouchScale].is_active()) {
         games::rb::TOUCH_SCALING = options[launcher::Options::spice2x_RBTouchScale].value_uint32();
     }
-    if (options[launcher::Options::RBTouchSize].is_active()) {
-        const auto text = options[launcher::Options::RBTouchSize].value_text();
-        if (text == "3") {
-            games::rb::TOUCH_SIZE = 3;
-        }
-    }
+    // -rbtouchsize is deprecated and ignored; touch emulation always uses the 3x3 model
     if (options[launcher::Options::RBTouchPollRate].is_active()) {
         games::rb::TOUCH_POLL_RATE = options[launcher::Options::RBTouchPollRate].value_uint32();
     }
@@ -1758,10 +1783,19 @@ int main_implementation(int argc, char *argv[]) {
 
         // enable subscreen touch emulation
         if (options[launcher::Options::spice2x_IIDXEmulateSubscreenKeypadTouch].is_active()) {
-            games::iidx::poke::enable();
+            games::iidx::ENABLE_POKE = true;
         }
         if (options[launcher::Options::NostalgiaPoke].is_active()) {
-            games::nost::ENABLE_POKE = TRUE;
+            games::nost::ENABLE_POKE = true;
+        }
+        if (options[launcher::Options::NostalgiaTouchMode].is_active()) {
+            if (overlay::ENABLED) {
+                games::nost::ENABLE_TOUCH_MODE = true;
+            } else {
+                log_warning(
+                    "launcher",
+                    "Nostalgia Touch Mode requires the global overlay; ignoring -nosttouch");
+            }
         }
     }
 
@@ -2489,10 +2523,8 @@ int main_implementation(int argc, char *argv[]) {
     // copy defaults to nvram
     avs::core::copy_defaults();
 
-    // prepare patches
-    {
-        overlay::windows::PatchManager patch_manager(nullptr, false);
-    }
+    // prepare patches (registers the DLL-load notification before the game DLL loads)
+    patcher::init();
 
     // load game
     avs::game::load_dll();
@@ -2620,9 +2652,7 @@ int main_implementation(int argc, char *argv[]) {
     }
 
     // apply patches
-    {
-        overlay::windows::PatchManager patch_manager(nullptr, true);
-    }
+    patcher::apply_patches_on_start();
 
     // load AVS-EA3
     avs::ea3::boot(easrv_port, easrv_maint, easrv_smart);

src/spice2x/launcher/options.cpp

@@ -434,18 +434,23 @@ static const std::vector<OptionDefinition> OPTION_DEFINITIONS = {
         .category = "Advanced Network",
     },
     {
-        .title = "Preferred NetAdapter IP",
+        .title = "Preferred Network Adapter's IP",
         .name = "network",
-        .desc = "This is NOT the EA service URL; use -url for that. "
-            "Force the use of an adapter with the specified network. Must also provide -subnet.",
+        .display_name = "netadapterip",
+        .aliases = "netadapterip",
+        .desc = "Instead of using the default network adapter, force the usage of another network adapter "
+            "with the specified IP address. You must also set -netadaptersubnet.",
         .type = OptionType::Text,
         .category = "Advanced Network",
         .sensitive = true,
     },
     {
-        .title = "Preferred NetAdapter Subnet",
+        .title = "Preferred Network Adapter's Subnet",
         .name = "subnet",
-        .desc = "Force the use of an adapter with the specified subnet. Must also provide -network.",
+        .display_name = "netadaptersubnet",
+        .aliases = "netadaptersubnet",
+        .desc = "Instead of using the default network adapter, force the usage of another network adapter "
+            "with the specified subnet. You must also set -netadapterip.",
         .type = OptionType::Text,
         .category = "Advanced Network",
     },
@@ -505,6 +510,13 @@ static const std::vector<OptionDefinition> OPTION_DEFINITIONS = {
         .type = OptionType::Bool,
         .category = "General Overlay",
     },
+    {
+        .title = "Overlay Keyboard Navigation",
+        .name = "keyboardnav",
+        .desc = "Enables keyboard navigation in the in-game overlay.",
+        .type = OptionType::Bool,
+        .category = "General Overlay",
+    },
     {
         // OverlayScaling
         .title = "Spice Overlay UI Scale %",
@@ -950,13 +962,12 @@ static const std::vector<OptionDefinition> OPTION_DEFINITIONS = {
         .category = "Cab Peripherals",
     },
     {
-        .title = "SDVX FS Subscreen Native Touch Handling",
+        .title = "SDVX Native Touch (DEPRECATED - no longer needed)",
         .name = "sdvxnativetouch",
-        .desc = "Disables touch hooks and lets the game access a touch screen directly. "
-                "Requires a touch screen to be connected as a secondary monitor. "
-                "Touch input must be routed to the primary screen via Windows Tablet PC settings. "
-                "Enable this when you get duplicate touch inputs from an actual touch screen.",
+        .desc = "This option does nothing.\n\n"
+            "Native touch handling is now enabled by default and this option is no longer needed.",
         .type = OptionType::Bool,
+        .hidden = true,
         .game_name = "Sound Voltex",
         .category = "Advanced Game Options",
     },
@@ -1031,16 +1042,16 @@ static const std::vector<OptionDefinition> OPTION_DEFINITIONS = {
         .title = "SDVX Disable Live2D (EXPERIMENTAL)",
         .name = "sdvxnolive2d",
         .desc = "Skip rendering the SDVX Live2D graphics to save GPU.\n\n"
-                "Off: leave Live2D as-is.\n"
-                "Always: never render Live2D (also removes the menu navigator).\n"
-                "During songs: only skip Live2D during a song; keeps the menu navigator. Scene detection relies on game logging.",
+                "off: leave Live2D as-is.\n"
+                "always: hide Live2D (also hides menu navigator).\n"
+                "ingame: only hide Live2D during a song; keeps the menu navigator. Scene detection relies on game logging.",
         .type = OptionType::Enum,
         .game_name = "Sound Voltex",
         .category = "Advanced Game Options",
         .elements = {
             {"off", "Show Live2D"},
-            {"always", "Never show Live2D"},
-            {"ingame", "Show navigators only"},
+            {"always", "Hide Live2D"},
+            {"ingame", "Hide during songs"},
         },
         .quick_setting_category = "Game",
     },
@@ -1147,13 +1158,12 @@ static const std::vector<OptionDefinition> OPTION_DEFINITIONS = {
     },
     {
         // PopnNativeTouch
-        .title = "Pop'n Music PikaPika Native Touch Handling",
+        .title = "Pop'n Music Native Touch (DEPRECATED - no longer needed)",
         .name = "popnnativetouch",
-        .desc = "Disables touch hooks and lets the game access a touch screen directly. "
-                "Requires a touch screen to be connected as a secondary monitor. "
-                "Touch input must be routed to the primary screen via Windows Tablet PC settings. "
-                "Enable this when you get duplicate touch inputs from an actual touch screen.",
+        .desc = "This option does nothing.\n\n"
+            "Native touch handling is now enabled by default and this option is no longer needed.",
         .type = OptionType::Bool,
+        .hidden = true,
         .game_name = "Pop'n Music",
         .category = "Advanced Game Options",
     },
@@ -1772,19 +1782,19 @@ static const std::vector<OptionDefinition> OPTION_DEFINITIONS = {
         .category = "I/O Modules",
     },
     {
-        .title = "Disable Raw Input Touch",
+        .title = "Touch Compatibility Mode (Disable Raw Input Touch)",
         .name = "wintouch",
         .desc = "For touch screen input, disable usage of Raw Input API and instead use "
-                "Win8 Pointer API or Win7 Touch API. Only enable this if you have trouble "
-                "using the default (raw input) touch input, as Raw Input performs better.",
+                "Win8 Pointer API or Win7 Touch API. Results in better compatibility with some "
+                "touch screens, but may result in worse performance and higher latency.",
         .type = OptionType::Bool,
         .category = "Touch Parameters",
     },
     {
-        .title = "Force Touch Emulation",
+        .title = "Force Legacy Touch Emulation",
         .name = "touchemuforce",
         .desc = "Force enable hook for GetTouchInputInfo API and inject WM_TOUCH events. "
-                "This is automatically enabled when needed and is typically not required. Do not enable this unless you have trouble.",
+            "Do not enable this unless you have trouble with using a mouse to emulate touch input.",
         .type = OptionType::Bool,
         .category = "Touch Parameters",
     },
@@ -1796,6 +1806,24 @@ static const std::vector<OptionDefinition> OPTION_DEFINITIONS = {
         .type = OptionType::Bool,
         .category = "Touch Parameters",
     },
+    {
+        // RawInputTouchAspectRatio
+        .title = "Raw Input Touch Fix Aspect Ratio",
+        .name = "rawtouchaspect",
+        .desc = "Compensate for letterboxing/pillarboxing when the game runs at a display mode with a "
+                "different aspect ratio than the touch panel's native resolution. Only affects the default "
+                "raw input touch handler. This is automatically enabled, only force on or off if you have trouble.\n\n"
+                "auto (default): automatically enable on a per-game basis.\n"
+                "on: forced on\n"
+                "off: forced off",
+        .type = OptionType::Enum,
+        .category = "Touch Parameters",
+        .elements = {
+            {"auto", ""},
+            {"on", ""},
+            {"off", ""},
+        },
+    },
     {
         // DisableTouchCardInsert
         .title = "Disable Touch Card Insert (DEPRECATED - use -touchcard instead)",
@@ -1807,12 +1835,14 @@ static const std::vector<OptionDefinition> OPTION_DEFINITIONS = {
     },
     {
         // spice2x_TouchCardInsert
-        .title = "Show Insert Card button",
+        .title = "Show Insert Card button (DEPRECATED)",
         .name = "sp2x-touchcard",
         .display_name = "touchcard",
         .aliases= "touchcard",
-        .desc = "Show Insert Card touch button on main display.",
+        .desc = "Show Insert Card touch button on main display. "
+            "DEPRECATED - only works in very specific situations (jubeat + wintouch)",
         .type = OptionType::Bool,
+        .hidden = true,
         .category = "Touch Parameters",
     },
     {
@@ -1884,7 +1914,7 @@ static const std::vector<OptionDefinition> OPTION_DEFINITIONS = {
         .title = "HID SmartCard Fix UID",
         .name = "scardfix",
         .desc = "Modify behavior of SmartCard UID logic.\n\n"
-            "legacy: Preserve buggy old behavior (Default)\n\n"
+            "legacy (default): Preserve buggy old behavior\n\n"
             "fix: Add E00401 to non-FeliCa cards, scan FeliCa cards as-is (Recommended for most users)\n\n"
             "all: Add E00401 to all cards, including FeliCa cards (For really old games only)\n\n"
             "The algorithm is simple; the prefix is applied, the scanned card number is appended up to 8 bytes, and remaining digits are discarded. "
@@ -2612,6 +2642,26 @@ static const std::vector<OptionDefinition> OPTION_DEFINITIONS = {
         .category = "Game Windowed Settings",
         .picker = OptionPickerType::Monitor,
     },
+    {
+        // GitaDoraWindowedSmallSize
+        .title = "GitaDora Windowed SMALL Size",
+        .name = "gdwsmallsize",
+        .desc = "Size of the GITADORA Arena SMALL touch window. Defaults to (800,1280).",
+        .type = OptionType::Text,
+        .setting_name = "800,1280",
+        .game_name = "GitaDora",
+        .category = "Game Windowed Settings",
+    },
+    {
+        // GitaDoraWindowedSmallPosition
+        .title = "GitaDora Windowed SMALL Position",
+        .name = "gdwsmallpos",
+        .desc = "Initial position of the GITADORA Arena SMALL touch window. Defaults to (0,0).",
+        .type = OptionType::Text,
+        .setting_name = "0,0",
+        .game_name = "GitaDora",
+        .category = "Game Windowed Settings",
+    },
     {
         // spice2x_IIDXWindowedSubscreenSize
         .title = "IIDX Windowed Subscreen Size",
@@ -2668,6 +2718,7 @@ static const std::vector<OptionDefinition> OPTION_DEFINITIONS = {
         .desc = "For touch screen players: choose the touch algorithm to use.\n\n"
             "legacy - evenly divide the grid into 16 squares; old spicetools behavior, slightly inaccurate in gaps\n\n"
             "improved (default) - squares register as-is, gaps will trigger the closest square\n\n"
+            "plus - like improved, but gaps can trigger multiple buttons (like the mobile game)\n\n"
             "accurate - only touches within squares will trigger; gaps do nothing (for AC size touch screens)",
         .type = OptionType::Enum,
         .game_name = "Jubeat",
@@ -2675,10 +2726,58 @@ static const std::vector<OptionDefinition> OPTION_DEFINITIONS = {
         .elements = {
             {"legacy", ""},
             {"improved", ""},
+            {"plus", ""},
             {"accurate", ""},
         },
         .quick_setting_category = "Game",
     },
+    {
+        // JubeatTouchDebug
+        .title = "JB Touch Debug Overlay",
+        .name = "jubeattouchdebug",
+        .desc = "For touch screen players: draw a debug overlay on the main display. "
+            "Requires the Spice Overlay to be enabled.\n\n"
+            "auto (default) - show boundary boxes when a touch screen is detected; otherwise, none\n\n"
+            "none - draw nothing\n\n"
+            "box - show the 4x4 touch boundary boxes\n\n"
+            "all - show both the boxes and the touch circles",
+        .type = OptionType::Enum,
+        .game_name = "Jubeat",
+        .category = "Game Options",
+        .elements = {
+            {"auto", ""},
+            {"none", ""},
+            {"box", ""},
+            {"all", ""},
+        },
+        .quick_setting_category = "Game",
+    },
+    {
+        // JubeatTouchDebounce
+        .title = "JB Touch Debounce",
+        .name = "jubeattouchdebounce",
+        .desc = "For touch screen players: ignore extremely quick touches by requiring a "
+            "touch to be held for at least this many milliseconds before it registers.\n\n"
+            "Useful for filtering phantom touches on a noisy touch screen. A higher value "
+            "adds input latency, so keep it small. Default: off (0).",
+        .type = OptionType::Integer,
+        .setting_name = "8",
+        .game_name = "Jubeat",
+        .category = "Game Options",
+        .quick_setting_category = "Game",
+    },
+    {
+        // RBTouchDebug
+        .title = "RB Touch Debug Overlay",
+        .name = "rbtouchdebug",
+        .desc = "Draw lines to show IR sensor emulation state.\n\n"
+            "Note: lines will not perfectly align with touches; this is by design, it's showing the "
+            "IR sensor state, before the game applies its own touch detection algorithm.",
+        .type = OptionType::Bool,
+        .game_name = "Reflec Beat",
+        .category = "Game Options",
+        .quick_setting_category = "Game",
+    },
     {
         // spice2x_RBTouchScale
         .title = "RB Touch Emulation Scale",
@@ -2693,14 +2792,15 @@ static const std::vector<OptionDefinition> OPTION_DEFINITIONS = {
     },
     {
         // RBTouchSize
-        .title = "RB Touch Emulation Size",
+        .title = "RB Touch Emulation Size (DEPRECATED - no longer has any effect)",
         .name = "rbtouchsize",
-        .desc = "Size of the touch area; how many IR sensors a single finger activates. Default: 1 (1x1).",
+        .desc = "This option is deprecated and no longer has any effect. "
+            "Reflec Beat touch emulation always uses the 3x3 sensor model.",
         .type = OptionType::Enum,
+        .hidden = true,
         .game_name = "Reflec Beat",
         .category = "Game Options",
         .elements = {
-            {"1", "1x1"},
             {"3", "3x3"},
         },
     },
@@ -2708,9 +2808,10 @@ static const std::vector<OptionDefinition> OPTION_DEFINITIONS = {
         // RBTouchPollRate
         .title = "RB Touch Emulation Poll Hz",
         .name = "rbtouchhz",
-        .desc = "By default, the game polls for touch at 120Hz. "
-            "This option overrides that rate; enter a number betwen 1 and 1000.\n\n"
-            "It should be noted that higher poll does not necessarily improve accuracy or performance.",
+        .desc = "By default, the game polls for touch at ~125Hz. "
+            "This option overrides that rate; enter a number between 1 and 1000.\n\n"
+            "Higher rates reduce input latency (the game sees a fresher touch position) "
+            "but do NOT improve spatial accuracy, and very high rates just waste CPU.",
         .type = OptionType::Integer,
         .setting_name = "250",
         .game_name = "Reflec Beat",
@@ -2787,15 +2888,14 @@ static const std::vector<OptionDefinition> OPTION_DEFINITIONS = {
     },
     {
         // spice2x_IIDXNativeTouch
-        .title = "IIDX TDJ Subscreen Native Touch Handling",
+        .title = "IIDX Native Touch (DEPRECATED - no longer needed)",
         .name = "sp2x-iidxnativetouch",
         .display_name = "iidxnativetouch",
         .aliases= "iidxnativetouch",
-        .desc = "Disables touch hooks and lets the game access a touch screen directly. "
-                "Requires a touch screen to be connected as a secondary monitor. "
-                "Touch input must be routed to the primary screen via Windows Tablet PC settings. "
-                "Enable this when you get duplicate touch inputs from an actual touch screen.",
+        .desc = "This option does nothing.\n\n"
+            "Native touch handling is now enabled by default and this option is no longer needed.",
         .type = OptionType::Bool,
+        .hidden = true,
         .game_name = "Beatmania IIDX",
         .category = "Advanced Game Options",
     },
@@ -3049,6 +3149,21 @@ static const std::vector<OptionDefinition> OPTION_DEFINITIONS = {
         .type = OptionType::Bool,
         .game_name = "Nostalgia",
         .category = "Game Options",
+        .quick_setting_category = "Game",
+    },
+    {
+        // NostalgiaTouchMode
+        .title = "Nostalgia Touch Piano",
+        .name = "nosttouch",
+        .desc =
+            "Allows you to play the piano by touching the screen instead of a controller. "
+            "Use the mode switch button to toggle between interacting with the menu and playing the piano.\n\n"
+            "Velocity sensitivity is not supported. Touch targets will be pixel-perfect aligned with the "
+            "judgement line, key beams, and notes.",
+        .type = OptionType::Bool,
+        .game_name = "Nostalgia",
+        .category = "Game Options",
+        .quick_setting_category = "Game",
     },
     {
         // ForceBackBufferCount

src/spice2x/launcher/options.h

@@ -53,6 +53,7 @@ namespace launcher {
             SOFTID,
             VREnable,
             DisableOverlay,
+            OverlayKeyboardNavigation,
             OverlayScaling,
             NotificationPosition,
             spice2x_FpsAutoShow,
@@ -179,6 +180,7 @@ namespace launcher {
             ForceWinTouch,
             ForceTouchEmulation,
             InvertTouchCoordinates,
+            RawInputTouchAspectRatio,
             DisableTouchCardInsert,
             spice2x_TouchCardInsert,
             ICCAReaderPort,
@@ -256,12 +258,17 @@ namespace launcher {
             GitaDoraWindowedLeftMonitor,
             GitaDoraWindowedRightMonitor,
             GitaDoraWindowedSmallMonitor,
+            GitaDoraWindowedSmallSize,
+            GitaDoraWindowedSmallPosition,
             spice2x_IIDXWindowedSubscreenSize,
             spice2x_IIDXWindowedSubscreenPosition,
             IIDXWindowedSubscreenBorderless,
             IIDXWindowedSubscreenAlwaysOnTop,
             spice2x_JubeatLegacyTouch,
             JubeatTouchAlgo,
+            JubeatTouchDebug,
+            JubeatTouchDebounce,
+            RBTouchDebug,
             spice2x_RBTouchScale,
             RBTouchSize,
             RBTouchPollRate,
@@ -290,6 +297,7 @@ namespace launcher {
             DDRP4IOBufferMode,
             InputRequiresFocus,
             NostalgiaPoke,
+            NostalgiaTouchMode,
             ForceBackBufferCount,
             SDVXWindowedSubscreenSize,
             SDVXWindowedSubscreenPosition,

src/spice2x/launcher/signal.cpp

@@ -1,5 +1,6 @@
 #include "signal.h"
 
+#include <algorithm>
 #include <future>
 #include <exception>
 
@@ -25,6 +26,7 @@
 #endif
 
 static decltype(MiniDumpWriteDump) *MiniDumpWriteDump_local = nullptr;
+static LONG EXCEPTION_HANDLER_ACTIVE = 0;
 
 namespace launcher::signal {
 
@@ -47,7 +49,7 @@ static std::string control_code(DWORD dwCtrlType) {
     }
 }
 
-static std::string exception_code(struct _EXCEPTION_RECORD *ExceptionRecord) {
+static std::string exception_code(const struct _EXCEPTION_RECORD *ExceptionRecord) {
     switch (ExceptionRecord->ExceptionCode) {
         V(EXCEPTION_ACCESS_VIOLATION);
         V(EXCEPTION_ARRAY_BOUNDS_EXCEEDED);
@@ -77,6 +79,388 @@ static std::string exception_code(struct _EXCEPTION_RECORD *ExceptionRecord) {
 
 #undef V
 
+static const char *access_operation(ULONG_PTR operation) {
+    switch (operation) {
+        case 0:
+            return "read";
+        case 1:
+            return "write";
+        case 8:
+            return "execute";
+        default:
+            return "unknown";
+    }
+}
+
+static const char *memory_state(DWORD state) {
+    switch (state) {
+        case MEM_COMMIT:
+            return "committed";
+        case MEM_FREE:
+            return "free";
+        case MEM_RESERVE:
+            return "reserved";
+        default:
+            return "unknown";
+    }
+}
+
+static const char *memory_type(DWORD type) {
+    switch (type) {
+        case MEM_IMAGE:
+            return "image";
+        case MEM_MAPPED:
+            return "mapped";
+        case MEM_PRIVATE:
+            return "private";
+        default:
+            return "none";
+    }
+}
+
+static const char *memory_protection(DWORD protection) {
+    switch (protection & 0xff) {
+        case PAGE_EXECUTE:
+            return "execute";
+        case PAGE_EXECUTE_READ:
+            return "execute-read";
+        case PAGE_EXECUTE_READWRITE:
+            return "execute-read-write";
+        case PAGE_EXECUTE_WRITECOPY:
+            return "execute-write-copy";
+        case PAGE_NOACCESS:
+            return "no-access";
+        case PAGE_READONLY:
+            return "read-only";
+        case PAGE_READWRITE:
+            return "read-write";
+        case PAGE_WRITECOPY:
+            return "write-copy";
+        default:
+            return "none";
+    }
+}
+
+static void log_exception_parameters(const struct _EXCEPTION_RECORD *record) {
+    const auto parameter_count = record->NumberParameters <= EXCEPTION_MAXIMUM_PARAMETERS ?
+            record->NumberParameters : EXCEPTION_MAXIMUM_PARAMETERS;
+
+    log_warning("signal", "exception flags: 0x{:08x}, parameters: {}",
+            record->ExceptionFlags, parameter_count);
+
+    for (DWORD parameter = 0; parameter < parameter_count; parameter++) {
+#ifdef _WIN64
+        log_warning("signal", "exception parameter[{}]: {:016x}",
+                parameter, record->ExceptionInformation[parameter]);
+#else
+        log_warning("signal", "exception parameter[{}]: {:08x}",
+                parameter, record->ExceptionInformation[parameter]);
+#endif
+    }
+}
+
+static bool query_memory(const void *address, MEMORY_BASIC_INFORMATION *memory) {
+    return VirtualQuery(address, memory, sizeof(*memory)) == sizeof(*memory);
+}
+
+static void log_memory_information(const char *label, const MEMORY_BASIC_INFORMATION &memory) {
+    log_warning("signal",
+            "{}: base={}, size=0x{:x}, allocation_base={}, state={} (0x{:x}), "
+            "protect={} (0x{:x}), type={} (0x{:x})",
+            label,
+            fmt::ptr(memory.BaseAddress),
+            memory.RegionSize,
+            fmt::ptr(memory.AllocationBase),
+            memory_state(memory.State),
+            memory.State,
+            memory_protection(memory.Protect),
+            memory.Protect,
+            memory_type(memory.Type),
+            memory.Type);
+}
+
+static void log_memory_region(const char *label, const void *address) {
+    MEMORY_BASIC_INFORMATION memory {};
+    if (!query_memory(address, &memory)) {
+        log_warning("signal", "{}: VirtualQuery failed for {}: 0x{:08x}",
+                label, fmt::ptr(address), GetLastError());
+        return;
+    }
+
+    log_memory_information(label, memory);
+}
+
+static void log_adjacent_memory_regions(const void *address) {
+    MEMORY_BASIC_INFORMATION current {};
+    if (!query_memory(address, &current)) {
+        return;
+    }
+
+    const auto current_base = reinterpret_cast<uintptr_t>(current.BaseAddress);
+    if (current_base > 0) {
+        MEMORY_BASIC_INFORMATION previous {};
+        if (query_memory(reinterpret_cast<const void *>(current_base - 1), &previous)) {
+            log_memory_information("fault memory previous", previous);
+        }
+    }
+
+    const auto current_end = current_base + current.RegionSize;
+    if (current_end > current_base) {
+        MEMORY_BASIC_INFORMATION next {};
+        if (query_memory(reinterpret_cast<const void *>(current_end), &next)) {
+            log_memory_information("fault memory next", next);
+        }
+    }
+}
+
+static void log_exception_module(const void *address) {
+    MEMORY_BASIC_INFORMATION memory {};
+    if (!query_memory(address, &memory) || memory.Type != MEM_IMAGE || memory.AllocationBase == nullptr) {
+        log_warning("signal", "exception module: unavailable");
+        return;
+    }
+
+    char module_path[MAX_PATH] {};
+    const auto module = static_cast<HMODULE>(memory.AllocationBase);
+    const auto module_base = reinterpret_cast<uintptr_t>(memory.AllocationBase);
+    const auto exception_address = reinterpret_cast<uintptr_t>(address);
+    const auto module_length = GetModuleFileNameA(module, module_path, sizeof(module_path));
+
+    if (module_length > 0) {
+        const std::string module_name(module_path, std::min<size_t>(module_length, sizeof(module_path)));
+        log_warning("signal", "exception module: '{}' base={}, rva=0x{:x}",
+            module_name, fmt::ptr(memory.AllocationBase), exception_address - module_base);
+    } else {
+        log_warning("signal", "exception module: base={}, rva=0x{:x}",
+                fmt::ptr(memory.AllocationBase), exception_address - module_base);
+    }
+}
+
+static void log_instruction_bytes(const void *address) {
+    MEMORY_BASIC_INFORMATION memory {};
+    if (!query_memory(address, &memory) ||
+        memory.State != MEM_COMMIT ||
+        (memory.Protect & (PAGE_GUARD | PAGE_NOACCESS)) != 0) {
+        log_warning("signal", "instruction bytes: unavailable");
+        return;
+    }
+
+    constexpr size_t max_instruction_bytes = 16;
+    const auto region_end = reinterpret_cast<uintptr_t>(memory.BaseAddress) + memory.RegionSize;
+    const auto instruction_address = reinterpret_cast<uintptr_t>(address);
+    const auto available = region_end > instruction_address ? region_end - instruction_address : 0;
+    const auto byte_count = std::min(max_instruction_bytes, static_cast<size_t>(available));
+    uint8_t bytes[max_instruction_bytes] {};
+    SIZE_T bytes_read = 0;
+    if (byte_count == 0 ||
+        !ReadProcessMemory(GetCurrentProcess(), address, bytes, byte_count, &bytes_read)) {
+        log_warning("signal", "instruction bytes: read failed at {}: 0x{:08x}",
+                fmt::ptr(address), GetLastError());
+        return;
+    }
+
+    std::string byte_string;
+    byte_string.reserve(bytes_read * 3);
+
+    for (size_t index = 0; index < bytes_read; index++) {
+        fmt::format_to(std::back_inserter(byte_string), "{:02x}{}",
+                bytes[index], index + 1 < bytes_read ? " " : "");
+    }
+
+    log_warning("signal", "instruction bytes: {}", byte_string);
+}
+
+static void log_stack_context(const CONTEXT *context) {
+    const auto *tib = reinterpret_cast<const NT_TIB *>(NtCurrentTeb());
+    const auto stack_base = reinterpret_cast<uintptr_t>(tib->StackBase);
+    const auto stack_limit = reinterpret_cast<uintptr_t>(tib->StackLimit);
+#ifdef _WIN64
+    const auto stack_pointer = static_cast<uintptr_t>(context->Rsp);
+#else
+    const auto stack_pointer = static_cast<uintptr_t>(context->Esp);
+#endif
+    const auto stack_used = stack_base > stack_pointer ? stack_base - stack_pointer : 0;
+    const auto stack_remaining = stack_pointer > stack_limit ? stack_pointer - stack_limit : 0;
+
+    log_warning("signal", "stack: base={}, limit={}, pointer={}, used=0x{:x}, remaining=0x{:x}",
+            fmt::ptr(tib->StackBase),
+            fmt::ptr(tib->StackLimit),
+            fmt::ptr(reinterpret_cast<const void *>(stack_pointer)),
+            stack_used,
+            stack_remaining);
+}
+
+static void log_exception_context(struct _EXCEPTION_POINTERS *ExceptionInfo, DWORD last_error) {
+    const auto *record = ExceptionInfo->ExceptionRecord;
+    const auto *context = ExceptionInfo->ContextRecord;
+
+    log_warning("signal", "thread id: {}", GetCurrentThreadId());
+    log_warning("signal", "thread last error (GetLastError()) at exception: 0x{:08x}", last_error);
+    log_warning("signal", "exception address: {}", fmt::ptr(record->ExceptionAddress));
+    log_exception_module(record->ExceptionAddress);
+    log_instruction_bytes(record->ExceptionAddress);
+    log_exception_parameters(record);
+
+    if ((record->ExceptionCode == EXCEPTION_ACCESS_VIOLATION ||
+         record->ExceptionCode == EXCEPTION_IN_PAGE_ERROR) &&
+        record->NumberParameters >= 2) {
+        const auto operation = record->ExceptionInformation[0];
+        const auto address = reinterpret_cast<const void *>(record->ExceptionInformation[1]);
+        log_warning("signal", "invalid memory access: {} at {}",
+                access_operation(operation), fmt::ptr(address));
+        log_memory_region("fault memory", address);
+        log_adjacent_memory_regions(address);
+    }
+
+    if (record->ExceptionCode == EXCEPTION_IN_PAGE_ERROR && record->NumberParameters >= 3) {
+        log_warning("signal", "in-page error status: 0x{:08x}",
+                static_cast<DWORD>(record->ExceptionInformation[2]));
+    }
+
+    if (context == nullptr) {
+        return;
+    }
+
+    log_stack_context(context);
+
+#ifdef _WIN64
+    log_warning("signal", "registers: rax={:016x} rbx={:016x} rcx={:016x} rdx={:016x}",
+            context->Rax, context->Rbx, context->Rcx, context->Rdx);
+    log_warning("signal", "registers: rsi={:016x} rdi={:016x} rbp={:016x} rsp={:016x}",
+            context->Rsi, context->Rdi, context->Rbp, context->Rsp);
+    log_warning("signal", "registers: r8={:016x} r9={:016x} r10={:016x} r11={:016x}",
+            context->R8, context->R9, context->R10, context->R11);
+    log_warning("signal", "registers: r12={:016x} r13={:016x} r14={:016x} r15={:016x}",
+            context->R12, context->R13, context->R14, context->R15);
+    log_warning("signal", "registers: rip={:016x} eflags={:08x}",
+            context->Rip, context->EFlags);
+#else
+    log_warning("signal", "registers: eax={:08x} ebx={:08x} ecx={:08x} edx={:08x}",
+            context->Eax, context->Ebx, context->Ecx, context->Edx);
+    log_warning("signal", "registers: esi={:08x} edi={:08x} ebp={:08x} esp={:08x}",
+            context->Esi, context->Edi, context->Ebp, context->Esp);
+    log_warning("signal", "registers: eip={:08x} eflags={:08x}",
+            context->Eip, context->EFlags);
+#endif
+}
+
+static void write_minidump(struct _EXCEPTION_POINTERS *ExceptionInfo) {
+    if (MiniDumpWriteDump_local == nullptr) {
+        log_warning("signal", "minidump creation function not available, skipping");
+        return;
+    }
+
+    HANDLE minidump_file = CreateFileA(
+        "minidump.dmp",
+        GENERIC_WRITE,
+        0,
+        nullptr,
+        CREATE_ALWAYS,
+        FILE_ATTRIBUTE_NORMAL,
+        nullptr);
+
+    if (minidump_file == INVALID_HANDLE_VALUE) {
+        log_warning("signal", "failed to create 'minidump.dmp' for minidump: 0x{:08x}",
+                GetLastError());
+        return;
+    }
+
+    MINIDUMP_EXCEPTION_INFORMATION ExceptionParam {};
+    ExceptionParam.ThreadId = GetCurrentThreadId();
+    ExceptionParam.ExceptionPointers = ExceptionInfo;
+    ExceptionParam.ClientPointers = FALSE;
+
+    constexpr auto extended_type = static_cast<MINIDUMP_TYPE>(
+            MiniDumpWithUnloadedModules |
+            MiniDumpWithIndirectlyReferencedMemory |
+            MiniDumpWithProcessThreadData |
+            MiniDumpWithFullMemoryInfo |
+            MiniDumpWithThreadInfo |
+            MiniDumpIgnoreInaccessibleMemory);
+
+    auto written_type = extended_type;
+    auto minidump_written = MiniDumpWriteDump_local(
+        GetCurrentProcess(),
+        GetCurrentProcessId(),
+        minidump_file,
+        extended_type,
+        &ExceptionParam,
+        nullptr,
+        nullptr);
+    auto minidump_error = minidump_written ? ERROR_SUCCESS : GetLastError();
+
+    if (!minidump_written) {
+        log_warning("signal", "failed to write extended minidump: 0x{:08x}; retrying MiniDumpNormal",
+                minidump_error);
+
+        LARGE_INTEGER file_start {};
+        if (SetFilePointerEx(minidump_file, file_start, nullptr, FILE_BEGIN) &&
+            SetEndOfFile(minidump_file)) {
+            written_type = MiniDumpNormal;
+            minidump_written = MiniDumpWriteDump_local(
+                GetCurrentProcess(),
+                GetCurrentProcessId(),
+                minidump_file,
+                MiniDumpNormal,
+                &ExceptionParam,
+                nullptr,
+                nullptr);
+            minidump_error = minidump_written ? ERROR_SUCCESS : GetLastError();
+        } else {
+            minidump_error = GetLastError();
+        }
+    }
+
+    LARGE_INTEGER minidump_size {};
+    const auto minidump_size_available = minidump_written &&
+            GetFileSizeEx(minidump_file, &minidump_size);
+    CloseHandle(minidump_file);
+
+    if (minidump_written) {
+        if (minidump_size_available) {
+            log_info("signal", "wrote minidump to 'minidump.dmp' (type=0x{:08x}, size={} bytes)",
+                    static_cast<unsigned>(written_type), minidump_size.QuadPart);
+        } else {
+            log_info("signal", "wrote minidump to 'minidump.dmp' (type=0x{:08x})",
+                    static_cast<unsigned>(written_type));
+        }
+    } else {
+        log_warning("signal", "failed to write 'minidump.dmp': 0x{:08x}", minidump_error);
+    }
+}
+
+static void log_exception_chain(const struct _EXCEPTION_RECORD *record) {
+    constexpr size_t max_exception_chain_depth = 8;
+    auto *record_cause = record->ExceptionRecord;
+    size_t depth = 0;
+
+    while (record_cause != nullptr && depth < max_exception_chain_depth) {
+        struct _EXCEPTION_RECORD cause {};
+        SIZE_T bytes_read = 0;
+        if (!ReadProcessMemory(
+                GetCurrentProcess(),
+                record_cause,
+                &cause,
+                sizeof(cause),
+                &bytes_read) ||
+            bytes_read != sizeof(cause)) {
+            log_warning("signal", "failed to read exception chain record {} at {}: 0x{:08x}",
+                    depth, fmt::ptr(record_cause), GetLastError());
+            return;
+        }
+
+        log_warning("signal", "caused by: {} at {}",
+                exception_code(&cause), fmt::ptr(cause.ExceptionAddress));
+        log_exception_parameters(&cause);
+        record_cause = cause.ExceptionRecord;
+        depth++;
+    }
+
+    if (record_cause != nullptr) {
+        log_warning("signal", "exception chain truncated after {} records", max_exception_chain_depth);
+    }
+}
+
 static BOOL WINAPI HandlerRoutine(DWORD dwCtrlType) {
     log_info("signal", "console ctrl handler called: {}", control_code(dwCtrlType));
 
@@ -90,15 +474,23 @@ static BOOL WINAPI HandlerRoutine(DWORD dwCtrlType) {
 }
 
 static LONG WINAPI TopLevelExceptionFilter(struct _EXCEPTION_POINTERS *ExceptionInfo) {
+    const auto last_error = GetLastError();
 
     // ignore signal if disabled or no exception info provided
-    if (!launcher::signal::DISABLE && ExceptionInfo != nullptr) {
+    if (!launcher::signal::DISABLE &&
+        ExceptionInfo != nullptr &&
+        ExceptionInfo->ExceptionRecord != nullptr &&
+        InterlockedCompareExchange(&EXCEPTION_HANDLER_ACTIVE, 1, 0) == 0) {
 
         // get exception record
         struct _EXCEPTION_RECORD *ExceptionRecord = ExceptionInfo->ExceptionRecord;
 
         // print signal
         log_warning("signal", "exception raised: {}", exception_code(ExceptionRecord));
+        log_exception_context(ExceptionInfo, last_error);
+
+        // write the minidump before other diagnostics inspect potentially damaged state
+        write_minidump(ExceptionInfo);
 
         switch (ExceptionRecord->ExceptionCode) {
             case EXCEPTION_ILLEGAL_INSTRUCTION:
@@ -128,12 +520,11 @@ static LONG WINAPI TopLevelExceptionFilter(struct _EXCEPTION_POINTERS *Exception
         // (e.g., ACIO init hang due to RTSS)
         deferredlogs::dump_to_logger(true);
 
-        // walk the exception chain
-        struct _EXCEPTION_RECORD *record_cause = ExceptionRecord->ExceptionRecord;
-        while (record_cause != nullptr) {
-            log_warning("signal", "caused by: {}", exception_code(record_cause));
-            record_cause = record_cause->ExceptionRecord;
-        }
+        // dump memory information before inspecting potentially damaged exception and stack data
+        memutils::show_available_memory();
+
+        // walk the exception chain with bounded, checked reads
+        log_exception_chain(ExceptionRecord);
 
         // print stacktrace
         StackWalker sw;
@@ -142,47 +533,12 @@ static LONG WINAPI TopLevelExceptionFilter(struct _EXCEPTION_POINTERS *Exception
             log_warning("signal", "failed to print callstack");
         }
 
-        if (MiniDumpWriteDump_local != nullptr) {
-            HANDLE minidump_file = CreateFileA(
-                "minidump.dmp",
-                GENERIC_WRITE,
-                0,
-                nullptr,
-                CREATE_ALWAYS,
-                FILE_ATTRIBUTE_NORMAL,
-                nullptr);
-
-            if (minidump_file != INVALID_HANDLE_VALUE) {
-                MINIDUMP_EXCEPTION_INFORMATION ExceptionParam {};
-                ExceptionParam.ThreadId = GetCurrentThreadId();
-                ExceptionParam.ExceptionPointers = ExceptionInfo;
-                ExceptionParam.ClientPointers = FALSE;
-
-                MiniDumpWriteDump_local(
-                    GetCurrentProcess(),
-                    GetCurrentProcessId(),
-                    minidump_file,
-                    MiniDumpNormal,
-                    &ExceptionParam,
-                    nullptr,
-                    nullptr);
-
-                CloseHandle(minidump_file);
-            } else {
-                log_warning("signal", "failed to create 'minidump.dmp' for minidump: 0x{:08x}",
-                    GetLastError());
-            }
-        } else {
-            log_warning("signal", "minidump creation function not available, skipping");
-        }
-
-        // dump memory information
-        memutils::show_available_memory();
-
         // this will stall all UI threads for this process
         show_popup_for_crash();
 
         log_fatal("signal", "end");
+
+        InterlockedExchange(&EXCEPTION_HANDLER_ACTIVE, 0);
     }
 
     return EXCEPTION_CONTINUE_SEARCH;

src/spice2x/misc/device.cpp

@@ -366,6 +366,7 @@ static void __cdecl device_update() {
 
         // update touch
         games::jb::touch_update();
+        auto touched = games::jb::touch_state();
 
         // get buttons
         auto &buttons = games::jb::get_buttons();
@@ -382,52 +383,52 @@ static void __cdecl device_update() {
         if (Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::CoinMech))) {
             DEVICE_INPUT_STATE |= 1 << 29;
         }
-        if (games::jb::TOUCH_STATE[3] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button1))) {
+        if (touched[3] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button1))) {
             DEVICE_INPUT_STATE |= 1 << 13;
         }
-        if (games::jb::TOUCH_STATE[7] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button2))) {
+        if (touched[7] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button2))) {
             DEVICE_INPUT_STATE |= 1 << 9;
         }
-        if (games::jb::TOUCH_STATE[11] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button3))) {
+        if (touched[11] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button3))) {
             DEVICE_INPUT_STATE |= 1 << 21;
         }
-        if (games::jb::TOUCH_STATE[15] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button4))) {
+        if (touched[15] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button4))) {
             DEVICE_INPUT_STATE |= 1 << 17;
         }
-        if (games::jb::TOUCH_STATE[2] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button5))) {
+        if (touched[2] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button5))) {
             DEVICE_INPUT_STATE |= 1 << 14;
         }
-        if (games::jb::TOUCH_STATE[6] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button6))) {
+        if (touched[6] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button6))) {
             DEVICE_INPUT_STATE |= 1 << 10;
         }
-        if (games::jb::TOUCH_STATE[10] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button7))) {
+        if (touched[10] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button7))) {
             DEVICE_INPUT_STATE |= 1 << 22;
         }
-        if (games::jb::TOUCH_STATE[14] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button8))) {
+        if (touched[14] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button8))) {
             DEVICE_INPUT_STATE |= 1 << 18;
         }
-        if (games::jb::TOUCH_STATE[1] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button9))) {
+        if (touched[1] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button9))) {
             DEVICE_INPUT_STATE |= 1 << 15;
         }
-        if (games::jb::TOUCH_STATE[5] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button10))) {
+        if (touched[5] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button10))) {
             DEVICE_INPUT_STATE |= 1 << 11;
         }
-        if (games::jb::TOUCH_STATE[9] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button11))) {
+        if (touched[9] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button11))) {
             DEVICE_INPUT_STATE |= 1 << 23;
         }
-        if (games::jb::TOUCH_STATE[13] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button12))) {
+        if (touched[13] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button12))) {
             DEVICE_INPUT_STATE |= 1 << 19;
         }
-        if (games::jb::TOUCH_STATE[0] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button13))) {
+        if (touched[0] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button13))) {
             DEVICE_INPUT_STATE |= 1 << 24;
         }
-        if (games::jb::TOUCH_STATE[4] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button14))) {
+        if (touched[4] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button14))) {
             DEVICE_INPUT_STATE |= 1 << 12;
         }
-        if (games::jb::TOUCH_STATE[8] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button15))) {
+        if (touched[8] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button15))) {
             DEVICE_INPUT_STATE |= 1 << 26;
         }
-        if (games::jb::TOUCH_STATE[12] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button16))) {
+        if (touched[12] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button16))) {
             DEVICE_INPUT_STATE |= 1 << 20;
         }
 
@@ -439,6 +440,7 @@ static void __cdecl device_update() {
 
         // update touch
         games::jb::touch_update();
+        auto touched = games::jb::touch_state();
 
         // get buttons
         auto &buttons = games::jb::get_buttons();
@@ -455,52 +457,52 @@ static void __cdecl device_update() {
         if (Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::CoinMech))) {
             DEVICE_INPUT_STATE |= 1 << 24;
         }
-        if (games::jb::TOUCH_STATE[0] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button1))) {
+        if (touched[0] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button1))) {
             DEVICE_INPUT_STATE |= 1 << 5;
         }
-        if (games::jb::TOUCH_STATE[1] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button2))) {
+        if (touched[1] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button2))) {
             DEVICE_INPUT_STATE |= 1 << 1;
         }
-        if (games::jb::TOUCH_STATE[2] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button3))) {
+        if (touched[2] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button3))) {
             DEVICE_INPUT_STATE |= 1 << 13;
         }
-        if (games::jb::TOUCH_STATE[3] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button4))) {
+        if (touched[3] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button4))) {
             DEVICE_INPUT_STATE |= 1 << 9;
         }
-        if (games::jb::TOUCH_STATE[4] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button5))) {
+        if (touched[4] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button5))) {
             DEVICE_INPUT_STATE |= 1 << 6;
         }
-        if (games::jb::TOUCH_STATE[5] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button6))) {
+        if (touched[5] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button6))) {
             DEVICE_INPUT_STATE |= 1 << 2;
         }
-        if (games::jb::TOUCH_STATE[6] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button7))) {
+        if (touched[6] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button7))) {
             DEVICE_INPUT_STATE |= 1 << 14;
         }
-        if (games::jb::TOUCH_STATE[7] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button8))) {
+        if (touched[7] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button8))) {
             DEVICE_INPUT_STATE |= 1 << 10;
         }
-        if (games::jb::TOUCH_STATE[8] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button9))) {
+        if (touched[8] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button9))) {
             DEVICE_INPUT_STATE |= 1 << 7;
         }
-        if (games::jb::TOUCH_STATE[9] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button10))) {
+        if (touched[9] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button10))) {
             DEVICE_INPUT_STATE |= 1 << 3;
         }
-        if (games::jb::TOUCH_STATE[10] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button11))) {
+        if (touched[10] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button11))) {
             DEVICE_INPUT_STATE |= 1 << 15;
         }
-        if (games::jb::TOUCH_STATE[11] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button12))) {
+        if (touched[11] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button12))) {
             DEVICE_INPUT_STATE |= 1 << 11;
         }
-        if (games::jb::TOUCH_STATE[12] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button13))) {
+        if (touched[12] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button13))) {
             DEVICE_INPUT_STATE |= 1 << 16;
         }
-        if (games::jb::TOUCH_STATE[13] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button14))) {
+        if (touched[13] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button14))) {
             DEVICE_INPUT_STATE |= 1 << 4;
         }
-        if (games::jb::TOUCH_STATE[14] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button15))) {
+        if (touched[14] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button15))) {
             DEVICE_INPUT_STATE |= 1 << 20;
         }
-        if (games::jb::TOUCH_STATE[15] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button16))) {
+        if (touched[15] || Buttons::getState(RI_MGR, buttons.at(games::jb::Buttons::Button16))) {
             DEVICE_INPUT_STATE |= 1 << 12;
         }
     }

src/spice2x/misc/eamuse.cpp

@@ -1,6 +1,7 @@
 #include "eamuse.h"
 
 #include <atomic>
+#include <chrono>
 #include <fstream>
 #include <thread>
 
@@ -10,7 +11,6 @@
 #include "rawinput/rawinput.h"
 #include "games/sdvx/sdvx.h"
 #include "util/logging.h"
-#include "util/precise_timer.h"
 #include "util/time.h"
 #include "util/utils.h"
 #include "overlay/overlay.h"
@@ -335,7 +335,6 @@ void eamuse_coin_start_thread() {
     COIN_INPUT_THREAD = new std::thread([]() {
         auto overlay_buttons = games::get_buttons_overlay(eamuse_get_game());
         static bool COIN_INPUT_KEY_STATE = false;
-        timeutils::PreciseSleepTimer timer;
         while (COIN_INPUT_THREAD_ACTIVE) {
 
             // check input key
@@ -355,7 +354,7 @@ void eamuse_coin_start_thread() {
             }
 
             // once every two frames
-            timer.sleep(1000 / 30);
+            std::this_thread::sleep_for(std::chrono::milliseconds(1000 / 30));
         }
     });
 }
@@ -409,7 +408,6 @@ void eamuse_pin_macro_start_thread() {
         size_t pin_index[2] = {PIN_MACRO_VALUES[0].length(), PIN_MACRO_VALUES[1].length()};
 
         std::optional<uint8_t> active_unit = std::nullopt;
-        timeutils::PreciseSleepTimer timer;
 
         while (PIN_MACRO_THREAD_ACTIVE) {
             // wait for key press or auto-trigger
@@ -438,7 +436,7 @@ void eamuse_pin_macro_start_thread() {
                 }
 
                 if (!active_unit.has_value()) {
-                    timer.sleep(20);
+                    std::this_thread::sleep_for(std::chrono::milliseconds(20));
                     continue;
                 }
             }
@@ -454,22 +452,22 @@ void eamuse_pin_macro_start_thread() {
                     eamuse_set_keypad_overrides(unit, keypad_overrides[char_index]);
                 }
                 pin_index[unit]++;
-                timer.sleep(100);
+                std::this_thread::sleep_for(std::chrono::milliseconds(100));
 
                 // clear
                 eamuse_set_keypad_overrides(unit, 0);
-                timer.sleep(50);
+                std::this_thread::sleep_for(std::chrono::milliseconds(50));
 
                 // end of PIN
                 if (pin_index[unit] == PIN_MACRO_VALUES[unit].length()) {
                     active_unit = std::nullopt;
-                    timer.sleep(120);
+                    std::this_thread::sleep_for(std::chrono::milliseconds(120));
                 }
 
                 continue;
             }
 
-            timer.sleep(200);
+            std::this_thread::sleep_for(std::chrono::milliseconds(200));
         }
     });
 }

src/spice2x/misc/nativetouchhook.cpp

@@ -1,122 +0,0 @@
-// enable touch functions - set version to windows 7
-// mingw otherwise doesn't load touch stuff
-#define _WIN32_WINNT 0x0601
-
-#include "avs/game.h"
-#include "wintouchemu.h"
-#include "rawinput/touch.h"
-#include "hooks/graphics/graphics.h"
-
-#include "util/detour.h"
-#include "util/logging.h"
-
-#define TOUCH_SIMULATE_FAT_FINGERS 0
-#define TOUCH_DEBUG_VERBOSE 0
-
-#if TOUCH_DEBUG_VERBOSE
-#define log_debug(module, format_str, ...) logger::push( \
-    LOG_FORMAT("M", module, format_str, ## __VA_ARGS__), logger::Style::GREY)
-#else
-#define log_debug(module, format_str, ...)
-#endif
-
-namespace nativetouchhook {
-
-    static decltype(GetTouchInputInfo) *GetTouchInputInfo_orig = nullptr;
-
-    static void strip_contact_size(PTOUCHINPUT point) {
-
-#if TOUCH_SIMULATE_FAT_FINGERS
-        point->dwMask |= 0x004;
-        point->cxContact = 80 * 100;
-        point->cyContact = 60 * 100;
-#endif
-
-        // most monitors do not set TOUCHEVENTFMASK_CONTACTAREA, but for
-        // monitors that do set it, IIDX can get very confused (SDVX is not
-        // affected)
-        //
-        // while the test menu and the touch "glow" seem to work properly,
-        // interacting with subscreen menu items or entering PIN becomes
-        // very unpredictable
-        //
-        // to fix this, simply remove the contact area width and height
-        // 
-        // note: test menu > I/O > touch test  gives 5 numbers:
-        //       n: x, y, w, h
-        //       where 
-        //       n is the nth touch input since boot
-        //       x, y are coordinates (center of finger)
-        //       w, h are contact width and height
-        //
-        // when TOUCHEVENTFMASK_CONTACTAREA is not set, w/h will
-        // automatically be seen as 1x1, which works perfectly fine
-
-        log_debug(
-            "touch::native",
-            "[{}, {}] dwMask = 0x{:x}, cxContact = {}, cyContact = {}",
-            point->x / 100,
-            point->y / 100,
-            point->dwMask,
-            point->cxContact,
-            point->cyContact);
-
-        point->dwMask &= ~(0x004ul); // clear TOUCHEVENTFMASK_CONTACTAREA 
-        point->cxContact = 0;
-        point->cyContact = 0;
-    }
-
-    static void flip_touch_points(PTOUCHINPUT point) {
-        point->x = rawinput::touch::DISPLAY_SIZE_X * 100 - point->x;
-        point->y = rawinput::touch::DISPLAY_SIZE_Y * 100 - point->y;
-    }
-
-    static BOOL WINAPI GetTouchInputInfoHook(
-        HTOUCHINPUT hTouchInput, UINT cInputs, PTOUCHINPUT pInputs, int cbSize) {
-
-        // call the original fist
-        const auto result = GetTouchInputInfo_orig(hTouchInput, cInputs, pInputs, cbSize);
-        if (result == 0) {
-            return result;
-        }
-
-        bool flip_values = false;
-        if (avs::game::is_model("KFC") && rawinput::touch::DISPLAY_INITIALIZED) {
-            log_debug(
-                "touch::native", "DISPLAY_ORIENTATION = {}, DISPLAY_SIZE_X = {}, DISPLAY_SIZE_Y = {}",
-                rawinput::touch::DISPLAY_ORIENTATION,
-                rawinput::touch::DISPLAY_SIZE_X,
-                rawinput::touch::DISPLAY_SIZE_Y);
-            if (rawinput::touch::DISPLAY_ORIENTATION == DMDO_270) {
-                flip_values = true;
-            }
-        }
-
-        if (rawinput::touch::INVERTED) {
-            flip_values = !flip_values;
-        }
-
-        for (size_t i = 0; i < cInputs; i++) {
-            PTOUCHINPUT point = &pInputs[i];
-
-            if (avs::game::is_model("LDJ")) {
-                strip_contact_size(point);
-            }
-
-            if (flip_values) {
-                flip_touch_points(point);
-            }
-        }
-        
-        return result;
-    }
-
-    void hook(HMODULE module) {
-        GetTouchInputInfo_orig = detour::iat_try("GetTouchInputInfo", GetTouchInputInfoHook, module);
-        if (GetTouchInputInfo_orig != nullptr) {
-            log_misc("touch::native", "GetTouchInputInfo hooked");
-        }
-    }
-
-}
- 

src/spice2x/misc/nativetouchhook.h

@@ -1,6 +0,0 @@
-#include <windows.h>
-
-namespace nativetouchhook {
-    void hook(HMODULE module);
-}
- 

src/spice2x/misc/sciunit.cpp

@@ -20,6 +20,7 @@ static cardunit_card_cardnumber_t cardunit_card_cardnumber = nullptr;
 static HINSTANCE SCIUNIT_INSTANCE;
 static std::string SCIUNIT_INSTANCE_NAME = "sciunit.dll";
 static bool SCIUNIT_INITIALIZED = false;
+static int SCIUNIT_STATUS = 0;
 static bool CARD_IN = false;
 static bool CARD_PRESSED = false;
 static uint8_t CARD_UID[8];
@@ -150,11 +151,11 @@ static int __cdecl sciunit_finalize() {
 }
 
 static int __cdecl sciunit_get_errorunit() {
-    return 0;
+    return -1;
 }
 
 static int __cdecl sciunit_get_stat() {
-    return 0;
+    return SCIUNIT_STATUS;
 }
 
 static int __cdecl sciunit_get_version(int a1, int a2) {
@@ -163,6 +164,7 @@ static int __cdecl sciunit_get_version(int a1, int a2) {
 
 static int __cdecl sciunit_initialize() {
     SCIUNIT_INITIALIZED = true;
+    SCIUNIT_STATUS = 1;
     return 0;
 }
 
@@ -223,8 +225,12 @@ static int __cdecl sciunit_reset() {
 }
 
 static int __cdecl sciunit_update() {
-    if (SCIUNIT_INITIALIZED)
+    if (SCIUNIT_INITIALIZED) {
+        if (SCIUNIT_STATUS == 1) {
+            SCIUNIT_STATUS = 2;
+        }
         update_card();
+    }
     return 0;
 }
 

src/spice2x/misc/wintouchemu.cpp

@@ -495,6 +495,14 @@ namespace wintouchemu {
         if (hWnd != nullptr && USE_MOUSE) {
             bool button_pressed = get_async_primary_mouse();
 
+            // while the subscreen overlay cannot accept the mouse, treat the button as
+            // released; this ends any active touch and prevents new mouse touch contacts
+            if (overlay::OVERLAY &&
+                overlay::OVERLAY->has_subscreen_touch_transform() &&
+                !overlay::OVERLAY->accepts_subscreen_mouse_input()) {
+                button_pressed = false;
+            }
+
             // if there was a touch event in the last 500 ms, don't insert new button presses
             if (button_pressed && (now - last_touch_event) < 500) {
                 button_pressed = false;

src/spice2x/overlay/overlay.cpp

@@ -5,7 +5,9 @@
 #include "games/io.h"
 #include "games/gitadora/gitadora.h"
 #include "games/iidx/iidx.h"
+#include "games/nost/nost.h"
 #include "games/popn/popn.h"
+#include "games/rb/touch_debug.h"
 #include "hooks/graphics/graphics.h"
 #include "misc/eamuse.h"
 #include "touch/touch.h"
@@ -50,6 +52,7 @@
 #include "windows/sdvx_sub.h"
 #include "windows/keypad.h"
 #include "windows/log.h"
+#include "windows/nostalgia_touch_piano.h"
 #include "windows/obs.h"
 #include "windows/patch_manager.h"
 #include "windows/exitprompt.cpp"
@@ -66,6 +69,7 @@ namespace overlay {
     bool AUTO_SHOW_IOPANEL = false;
     bool AUTO_SHOW_KEYPAD_P1 = false;
     bool AUTO_SHOW_KEYPAD_P2 = false;
+    bool ENABLE_KEYBOARD_NAVIGATION = false;
     bool USE_WM_CHAR_FOR_IMGUI_CHAR_INPUT = false;
     FpsLocation FPS_LOCATION = FpsLocation::TopRight;
     std::optional<uint32_t> UI_SCALE_PERCENT;
@@ -311,6 +315,9 @@ void overlay::SpiceOverlay::init() {
     auto &io = ImGui::GetIO();
     io.UserData = this;
     io.ConfigFlags = ImGuiConfigFlags_None;
+    if (cfg::CONFIGURATOR_STANDALONE || ENABLE_KEYBOARD_NAVIGATION) {
+        io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;
+    }
     if (!cfg::CONFIGURATOR_STANDALONE) {
         io.ConfigFlags |= ImGuiConfigFlags_DockingEnable;
     }
@@ -399,6 +406,12 @@ void overlay::SpiceOverlay::init() {
         window_fps->set_active(true);
     }
 
+    if (!cfg::CONFIGURATOR_STANDALONE &&
+        avs::game::is_model("PAN") && games::nost::ENABLE_TOUCH_MODE) {
+        window_nostalgia_touch_piano =
+            std::make_unique<overlay::windows::NostalgiaTouchPiano>(this);
+    }
+
     // owned separately from `windows` so it is not part of the overlay window layer
     window_main_menu = std::make_unique<overlay::windows::ExitPrompt>(this);
 
@@ -551,9 +564,18 @@ void overlay::SpiceOverlay::new_frame() {
     const bool draw_fps_persistent = this->renderer != OverlayRenderer::SOFTWARE
         && this->window_fps->get_active();
 
+    const bool draw_nostalgia_touch_piano = this->renderer != OverlayRenderer::SOFTWARE
+        && this->window_nostalgia_touch_piano
+        && this->window_nostalgia_touch_piano->get_active();
+
+    // draw RB touch diagnostics
+    const bool draw_rb_touch_debug = this->renderer != OverlayRenderer::SOFTWARE
+        && games::rb::touch_debug_overlay_enabled();
+
     // check if there is nothing to draw
     this->has_pending_frame = false;
-    if (!this->active && !draw_notifications && !draw_fps_persistent) {
+    if (!this->active && !draw_notifications && !draw_fps_persistent &&
+        !draw_nostalgia_touch_piano && !draw_rb_touch_debug) {
         return;
     }
 
@@ -578,12 +600,22 @@ void overlay::SpiceOverlay::new_frame() {
     ImGui::NewFrame();
     this->has_pending_frame = true;
 
+    if (draw_rb_touch_debug) {
+        games::rb::touch_draw_debug_overlay();
+    }
+
     // build windows only when the overlay itself is active
     if (this->active) {
         for (auto &window : this->windows) {
             window->build();
         }
+    }
 
+    if (draw_nostalgia_touch_piano) {
+        this->window_nostalgia_touch_piano->build();
+    }
+
+    if (this->active) {
         // draw the main menu on top of the overlay windows
         this->window_main_menu->build();
 
@@ -595,6 +627,7 @@ void overlay::SpiceOverlay::new_frame() {
     if (draw_fps_persistent) {
         this->window_fps->build();
     }
+
     // draw notifications last so they paint on top of any overlay windows
     if (draw_notifications) {
         overlay::notifications::draw();
@@ -805,6 +838,10 @@ void overlay::SpiceOverlay::update() {
     // FPS window
     this->window_fps->update();
 
+    if (this->window_nostalgia_touch_piano) {
+        this->window_nostalgia_touch_piano->update();
+    }
+
     // main menu (owned separately from the overlay window layer)
     this->window_main_menu->update();
 
@@ -871,6 +908,17 @@ bool overlay::SpiceOverlay::get_active() {
     return this->active;
 }
 
+bool overlay::SpiceOverlay::is_subscreen_overlay_visible() {
+    return this->get_active() &&
+        this->window_sub != nullptr &&
+        this->window_sub->get_active();
+}
+
+bool overlay::SpiceOverlay::accepts_subscreen_mouse_input() {
+    return this->is_subscreen_overlay_visible() &&
+        this->window_sub->is_mouse_hovered();
+}
+
 bool overlay::SpiceOverlay::has_focus() {
     return this->get_active() && ImGui::IsWindowFocused(ImGuiFocusedFlags_AnyWindow);
 }

src/spice2x/overlay/overlay.h

@@ -44,6 +44,7 @@ namespace overlay {
     extern bool AUTO_SHOW_IOPANEL;
     extern bool AUTO_SHOW_KEYPAD_P1;
     extern bool AUTO_SHOW_KEYPAD_P2;
+    extern bool ENABLE_KEYBOARD_NAVIGATION;
     extern bool USE_WM_CHAR_FOR_IMGUI_CHAR_INPUT;
     extern FpsLocation FPS_LOCATION;
     extern bool SHOW_DEBUG_LOG_WINDOW;
@@ -82,6 +83,7 @@ namespace overlay {
         // not part of `windows`: drawn/updated on the persistent layer (like
         // notifications), independent of the overlay's active state and input gates.
         std::unique_ptr<Window> window_fps;
+        std::unique_ptr<Window> window_nostalgia_touch_piano;
 
         // not part of `windows`: the main menu / launcher. owned and drawn
         // separately from the overlay window layer; it drives the overlay's
@@ -107,6 +109,7 @@ namespace overlay {
         void show_main_menu();
         void set_active(bool active);
         bool get_active();
+        bool accepts_subscreen_mouse_input();
         bool has_focus();
         bool hotkeys_triggered();
 
@@ -137,21 +140,24 @@ namespace overlay {
         inline IDirect3DDevice9 *get_device() {
             return this->device;
         }
+        inline HWND get_window() {
+            return this->hWnd;
+        }
 
-        bool can_transform_touch_input() {
-            return (this->subscreen_mouse_handler != nullptr);
+        bool has_subscreen_touch_transform() {
+            return (this->subscreen_touch_transform != nullptr);
         }
 
         bool transform_touch_point(LONG *x, LONG *y) {
-            if (this->get_active() && this->subscreen_mouse_handler) {
-                return this->subscreen_mouse_handler(x, y);
+            if (this->get_active() && this->subscreen_touch_transform) {
+                return this->subscreen_touch_transform(x, y);
             } else {
                 return true;
             }
         }
 
-        void set_subscreen_mouse_handler(const std::function<bool(LONG *, LONG *)> &f) {
-            this->subscreen_mouse_handler = f;
+        void set_subscreen_touch_transform(const std::function<bool(LONG *, LONG *)> &f) {
+            this->subscreen_touch_transform = f;
         }
 
         // renderer
@@ -198,7 +204,7 @@ namespace overlay {
 
         std::vector<std::unique_ptr<Window>> windows;
 
-        std::function<bool(LONG *, LONG *)> subscreen_mouse_handler = nullptr;
+        std::function<bool(LONG *, LONG *)> subscreen_touch_transform = nullptr;
 
         bool active = false;
         bool toggle_down = false;
@@ -211,6 +217,7 @@ namespace overlay {
         // so render() never runs without a matching NewFrame.
         bool has_pending_frame = false;
 
+        bool is_subscreen_overlay_visible();
         void init();
         void add_font(const char* font, ImFontConfig* config, const ImWchar* glyphs);
     };

src/spice2x/overlay/window.cpp

@@ -69,6 +69,7 @@ void overlay::Window::build() {
 
     // check if active
     if (!this->active) {
+        this->mouse_hovered = false;
         return;
     }
 
@@ -106,10 +107,18 @@ void overlay::Window::build() {
         // top spot. suppress that so only an explicit focus request (see below)
         // decides what comes to the front.
         const std::string window_id = this->title + "###" + to_string(this);
-        if (ImGui::Begin(
+        const bool build_contents = ImGui::Begin(
                 window_id.c_str(),
                 &this->active,
-                this->flags | ImGuiWindowFlags_NoFocusOnAppearing)) {
+                this->flags | ImGuiWindowFlags_NoFocusOnAppearing);
+
+        // keep the window hovered while its invisible input button is held during a drag
+        this->mouse_hovered =
+            ImGui::IsWindowHovered(
+                ImGuiHoveredFlags_RootAndChildWindows |
+                ImGuiHoveredFlags_AllowWhenBlockedByActiveItem);
+
+        if (build_contents) {
 
             // window attributes - init_pos / init_size are only honored once
             // (ImGuiCond_Once), so compute them a single time instead of every frame
@@ -154,6 +163,9 @@ void overlay::Window::build() {
 
     } else {
 
+        // raw content does not have an ImGui window to hover
+        this->mouse_hovered = false;
+
         // add raw content
         this->build_content();
     }
@@ -201,3 +213,7 @@ bool overlay::Window::get_active() {
     // now it depends on us
     return this->active;
 }
+
+bool overlay::Window::is_mouse_hovered() {
+    return this->mouse_hovered;
+}

src/spice2x/overlay/window.h

@@ -24,6 +24,7 @@ namespace overlay {
         void toggle_active();
         void set_active(bool active);
         bool get_active();
+        bool is_mouse_hovered();
 
         // raise this window to the top of the z-order on its next build. only
         // call in response to an explicit user action (keyboard toggle, UI
@@ -37,6 +38,7 @@ namespace overlay {
         // set when the window transitions to visible so build() raises it to the
         // top of the z-order on the next frame
         bool request_focus = false;
+        bool mouse_hovered = false;
         std::vector<Window*> children;
 
         // settings

src/spice2x/overlay/windows/camera_control.cpp

@@ -82,9 +82,14 @@ namespace overlay::windows {
         ImGui::Text("Rendering");
 
         // Media Type Selector
-        int selectedMediaTypeIndex = selectedCamera->m_selectedMediaTypeIndex;
+        int selectedMediaTypeIndex = selectedCamera->GetSelectedMediaTypeIndex();
         auto numMediaTypes = selectedCamera->m_mediaTypeInfos.size();
 
+        if (numMediaTypes == 0) {
+            ImGui::TextColored(ImVec4(1.f, 1.f, 0.f, 1.f), "%s", "No supported media types");
+            return;
+        }
+
         auto selectedMediaTypeIndexChanged = ImGui::BeginCombo(
             "Media Type", selectedCamera->m_mediaTypeInfos.at(selectedMediaTypeIndex).description.c_str()
         );
@@ -103,9 +108,9 @@ namespace overlay::windows {
             ImGui::EndCombo();
         }
 
-        if (selectedMediaTypeIndexChanged && selectedMediaTypeIndex != selectedCamera->m_selectedMediaTypeIndex) {
+        if (selectedMediaTypeIndexChanged && selectedMediaTypeIndex != selectedCamera->GetSelectedMediaTypeIndex()) {
             selectedCamera->m_useAutoMediaType = false;
-            selectedCamera->ChangeMediaType(selectedCamera->m_mediaTypeInfos.at(selectedMediaTypeIndex).p_mediaType);
+            selectedCamera->RequestMediaType(selectedCamera->m_mediaTypeInfos.at(selectedMediaTypeIndex).p_mediaType);
         }
 
         // Auto media type
@@ -114,13 +119,14 @@ namespace overlay::windows {
         if (ImGui::Checkbox("Auto##MediaType", &isAutoMediaType)) {
             selectedCamera->m_useAutoMediaType = isAutoMediaType;
             if (isAutoMediaType) {
-                selectedCamera->ChangeMediaType(selectedCamera->m_pAutoMediaType);
+                selectedCamera->RequestMediaType(selectedCamera->m_pAutoMediaType);
             }
         }
 
         // Draw mode
-        int selectedDrawModeIndex = selectedCamera->m_drawMode;
-        if (ImGui::BeginCombo("Draw Mode", DRAW_MODE_LABELS[selectedCamera->m_drawMode].c_str())) {
+        const auto drawMode = selectedCamera->m_drawMode.load();
+        int selectedDrawModeIndex = drawMode;
+        if (ImGui::BeginCombo("Draw Mode", DRAW_MODE_LABELS[drawMode].c_str())) {
             for (size_t i = 0; i < DRAW_MODE_SIZE; i++) {
                 const bool is_selected = (selectedDrawModeIndex == (int) i);
                 if (ImGui::Selectable(DRAW_MODE_LABELS[i].c_str(), is_selected)) {
@@ -142,15 +148,25 @@ namespace overlay::windows {
             "Letterbox to 4:3: Like Letterbox, but target 4:3"
             );
 
-        if (selectedDrawModeIndex != selectedCamera->m_drawMode) {
-            selectedCamera->m_drawMode = (LocalCameraDrawMode)selectedDrawModeIndex;
+        if (selectedDrawModeIndex != selectedCamera->m_drawMode.load()) {
+            selectedCamera->m_drawMode.store((LocalCameraDrawMode)selectedDrawModeIndex);
             selectedCamera->UpdateDrawRect();
         }
 
         ImGui::AlignTextToFramePadding();
-        ImGui::Checkbox("Horizontal Flip", &selectedCamera->m_flipHorizontal);
+        bool flipHorizontal = selectedCamera->m_flipHorizontal.load();
+        if (ImGui::Checkbox("Horizontal Flip", &flipHorizontal)) {
+            selectedCamera->m_flipHorizontal.store(flipHorizontal);
+        }
         ImGui::SameLine();
-        ImGui::Checkbox("Vertical Flip", &selectedCamera->m_flipVertical);
+        bool flipVertical = selectedCamera->m_flipVertical.load();
+        if (ImGui::Checkbox("Vertical Flip", &flipVertical)) {
+            selectedCamera->m_flipVertical.store(flipVertical);
+        }
+        ImGui::SameLine();
+        ImGui::HelpMarker(
+            "Flips are done by the CPU and can be very expensive, potentially causing frame drops! "
+            "Prefer to use camera's built-in flip if available.");
 
         // Camera control parameters
         ImGui::Separator();

src/spice2x/overlay/windows/config.cpp

@@ -85,6 +85,7 @@ namespace overlay::windows {
     static const std::vector<std::pair<const char *, ControllerPage>> CONTROLLER_PAGE_GROUPS = {
         { "Buttons", ControllerPage::CONTROLLER_PAGE_BUTTONS },
         { "Keypads", ControllerPage::CONTROLLER_PAGE_KEYPADS },
+        { "Modifiers", ControllerPage::CONTROLLER_PAGE_MODIFIERS },
         { "Analogs", ControllerPage::CONTROLLER_PAGE_ANALOGS },
         { "Overlay", ControllerPage::CONTROLLER_PAGE_OVERLAY },
         { "Lights", ControllerPage::CONTROLLER_PAGE_LIGHTS },
@@ -251,7 +252,7 @@ namespace overlay::windows {
     }
 
     // Renders an arrow-less, non-collapsible left-nav header row, highlighted when
-    // active. Returns true if the row was clicked this frame; callers apply their
+    // active. Returns true if the row was activated this frame; callers apply their
     // own selection side effects.
     bool Config::build_nav_header(const char *label, bool active) {
         ImGuiTreeNodeFlags flags = ImGuiTreeNodeFlags_Leaf;
@@ -282,7 +283,7 @@ namespace overlay::windows {
             ImGui::PopStyleColor(colors_pushed);
         }
 
-        return ImGui::IsItemClicked();
+        return ImGui::IsItemActivated();
     }
 
     void Config::build_options_tab(float page_offset) {
@@ -616,6 +617,21 @@ namespace overlay::windows {
                     }
                     break;
                 }
+                case ControllerPage::CONTROLLER_PAGE_MODIFIERS: {
+                    ImGui::TextColored(ImVec4(1.f, 0.7f, 0, 1), "Button Modifiers");
+                    ImGui::Spacing();
+                    ImGui::TextWrapped(
+                        "Bind modifier buttons below, then open Edit properties on any button binding "
+                        "(except MIDI) to select the required modifiers. This allows you to configure "
+                        "button combinations.\n\n"
+                        "For example, if you bind the Start button as Modifier 1, and then bind "
+                        "the A button for Service Coin and set it to require Modifier 1, you press "
+                        "Start + A to trigger Service Coin.");
+                    ImGui::TextUnformatted("");
+                    this->build_buttons(
+                        "Modifier", games::get_buttons_modifiers(this->games_selected_name));
+                    break;
+                }
                 case ControllerPage::CONTROLLER_PAGE_ANALOGS: {
 
                     // help text for binding analog, if the game has one
@@ -1256,7 +1272,8 @@ namespace overlay::windows {
         if (open_edit) {
             ImGui::OpenPopup(edit_name.c_str());
         }
-        edit_button_popup(edit_name, button_display, button, button_velocity, alt_index);
+        edit_button_popup(
+            edit_name, button_display, button, button_velocity, alt_index, name != "Modifier");
 
         // clean up
         ImGui::PopID();
@@ -1275,6 +1292,7 @@ namespace overlay::windows {
         button->setBatThreshold(0);
         button->setVelocityThreshold(0);
         button->setInvert(false);
+        button->setModifierMask(0);
         button->setLastState(GameAPI::Buttons::BUTTON_NOT_PRESSED);
         button->setLastVelocity(0);
         button->setTemporary(false);
@@ -1356,8 +1374,9 @@ namespace overlay::windows {
             if (check_devices) {
                 // iterate updated devices
                 auto updated_devices = RI_MGR->devices_get_updated();
+                bool binding_finished = false;
                 for (auto device : updated_devices) {
-                    std::lock_guard<std::mutex> lock(*device->mutex);
+                    std::unique_lock<std::mutex> lock(*device->mutex);
                     switch (device->type) {
                         case rawinput::MOUSE: {
                             auto mouse = device->mouseInfo;
@@ -1369,12 +1388,13 @@ namespace overlay::windows {
                                     button->setDeviceIdentifier(device->name);
                                     button->setVKey(static_cast<unsigned short>(i));
                                     button->setAnalogType(BAT_NONE);
+                                    button->setModifierMask(0);
                                     ::Config::getInstance().updateBinding(
                                             games_list[games_selected], *button, alt_index - 1);
                                     ImGui::CloseCurrentPopup();
                                     buttons_bind_active = false;
                                     inc_buttons_many_index(button_it_max);
-                                    RI_MGR->devices_midi_freeze(false);
+                                    binding_finished = true;
                                     break;
                                 }
                             }
@@ -1393,7 +1413,7 @@ namespace overlay::windows {
                                         buttons_bind_active = false;
                                         buttons_many_index = -1;
                                         buttons_many_active = false;
-                                        RI_MGR->devices_midi_freeze(false);
+                                        binding_finished = true;
                                         break;
                                     }
 
@@ -1401,12 +1421,13 @@ namespace overlay::windows {
                                     button->setDeviceIdentifier(device->name);
                                     button->setVKey(vkey);
                                     button->setAnalogType(BAT_NONE);
+                                    button->setModifierMask(0);
                                     ::Config::getInstance().updateBinding(
                                             games_list[games_selected], *button, alt_index - 1);
                                     ImGui::CloseCurrentPopup();
                                     buttons_bind_active = false;
                                     inc_buttons_many_index(button_it_max);
-                                    RI_MGR->devices_midi_freeze(false);
+                                    binding_finished = true;
                                     break;
                                 }
                             }
@@ -1536,13 +1557,14 @@ namespace overlay::windows {
                                 button->setDebounceDown(0.0);
                                 button->setBatThreshold(0);
                                 button->setVelocityThreshold(0);
+                                button->setModifierMask(0);
                                 ::Config::getInstance().updateBinding(
                                         games_list[games_selected], *button,
                                         alt_index - 1);
                                 ImGui::CloseCurrentPopup();
                                 buttons_bind_active = false;
                                 inc_buttons_many_index(button_it_max);
-                                RI_MGR->devices_midi_freeze(false);
+                                binding_finished = true;
                             }
 
                             break;
@@ -1581,6 +1603,7 @@ namespace overlay::windows {
                                     button->setDebounceUp(0.0);
                                     button->setDebounceDown(0.0);
                                     button->setBatThreshold(0);
+                                    button->setModifierMask(0);
                                     // same idea as setMidiVKey - keep velocity threshold consistent
                                     button->setVelocityThreshold(
                                         device->midiInfo->v2_velocity_threshold[button->getVKey()]);
@@ -1590,7 +1613,7 @@ namespace overlay::windows {
                                     ImGui::CloseCurrentPopup();
                                     buttons_bind_active = false;
                                     inc_buttons_many_index(button_it_max);
-                                    RI_MGR->devices_midi_freeze(false);
+                                    binding_finished = true;
                                     break;
                                 }
                             }
@@ -1608,13 +1631,14 @@ namespace overlay::windows {
                                         button->setDebounceDown(0.0);
                                         button->setBatThreshold(0);
                                         button->setVelocityThreshold(0);
+                                        button->setModifierMask(0);
                                         ::Config::getInstance().updateBinding(
                                                 games_list[games_selected], *button,
                                                 alt_index - 1);
                                         ImGui::CloseCurrentPopup();
                                         buttons_bind_active = false;
                                         inc_buttons_many_index(button_it_max);
-                                        RI_MGR->devices_midi_freeze(false);
+                                        binding_finished = true;
                                         break;
                                     }
                                 } else {
@@ -1635,13 +1659,14 @@ namespace overlay::windows {
                                         button->setDebounceDown(0.0);
                                         button->setBatThreshold(0);
                                         button->setVelocityThreshold(0);
+                                        button->setModifierMask(0);
                                         ::Config::getInstance().updateBinding(
                                                 games_list[games_selected], *button,
                                                 alt_index - 1);
                                         ImGui::CloseCurrentPopup();
                                         buttons_bind_active = false;
                                         inc_buttons_many_index(button_it_max);
-                                        RI_MGR->devices_midi_freeze(false);
+                                        binding_finished = true;
                                         break;
                                     }
                                 } else {
@@ -1662,13 +1687,14 @@ namespace overlay::windows {
                                         button->setDebounceDown(0.0);
                                         button->setBatThreshold(0);
                                         button->setVelocityThreshold(0);
+                                        button->setModifierMask(0);
                                         ::Config::getInstance().updateBinding(
                                                 games_list[games_selected], *button,
                                                 alt_index - 1);
                                         ImGui::CloseCurrentPopup();
                                         buttons_bind_active = false;
                                         inc_buttons_many_index(button_it_max);
-                                        RI_MGR->devices_midi_freeze(false);
+                                        binding_finished = true;
                                         break;
                                     }
                                 } else {
@@ -1688,13 +1714,14 @@ namespace overlay::windows {
                                     button->setDebounceDown(0.0);
                                     button->setBatThreshold(0);
                                     button->setVelocityThreshold(0);
+                                    button->setModifierMask(0);
                                     ::Config::getInstance().updateBinding(
                                             games_list[games_selected], *button,
                                             alt_index - 1);
                                     ImGui::CloseCurrentPopup();
                                     buttons_bind_active = false;
                                     inc_buttons_many_index(button_it_max);
-                                    RI_MGR->devices_midi_freeze(false);
+                                    binding_finished = true;
                                     break;
                                 }
 
@@ -1709,13 +1736,14 @@ namespace overlay::windows {
                                     button->setDebounceDown(0.0);
                                     button->setBatThreshold(0);
                                     button->setVelocityThreshold(0);
+                                    button->setModifierMask(0);
                                     ::Config::getInstance().updateBinding(
                                             games_list[games_selected], *button,
                                             alt_index - 1);
                                     ImGui::CloseCurrentPopup();
                                     buttons_bind_active = false;
                                     inc_buttons_many_index(button_it_max);
-                                    RI_MGR->devices_midi_freeze(false);
+                                    binding_finished = true;
                                     break;
                                 }
                             }
@@ -1739,13 +1767,14 @@ namespace overlay::windows {
                                     button->setDebounceDown(0.0);
                                     button->setBatThreshold(0);
                                     button->setVelocityThreshold(0);
+                                    button->setModifierMask(0);
                                     ::Config::getInstance().updateBinding(
                                             games_list[games_selected], *button,
                                             alt_index - 1);
                                     ImGui::CloseCurrentPopup();
                                     buttons_bind_active = false;
                                     inc_buttons_many_index(button_it_max);
-                                    RI_MGR->devices_midi_freeze(false);
+                                    binding_finished = true;
                                     break;
                                 }
                             }
@@ -1755,6 +1784,13 @@ namespace overlay::windows {
                         default:
                             break;
                     }
+                    lock.unlock();
+                    if (binding_finished) {
+                        break;
+                    }
+                }
+                if (binding_finished) {
+                    RI_MGR->devices_midi_freeze(false);
                 }
             }
 
@@ -1808,6 +1844,7 @@ namespace overlay::windows {
                 if (RI_MGR->XINPUT_MGR->get_any_button_pressed(xinput)) {
                     button->setDeviceIdentifier(xinput::get_device_desc(xinput.player));
                     button->setVKey(static_cast<uint16_t>(xinput.button));
+                    button->setModifierMask(0);
                     ::Config::getInstance().updateBinding(
                             games_list[games_selected], *button, alt_index - 1);
                     inc_buttons_many_index(button_it_max);
@@ -1864,6 +1901,7 @@ namespace overlay::windows {
                         button->setDebounceDown(0.0);
                         button->setBatThreshold(0);
                         button->setVelocityThreshold(0);
+                        button->setModifierMask(0);
                         ::Config::getInstance().updateBinding(
                                 games_list[games_selected], *button,
                                 alt_index - 1);
@@ -1882,27 +1920,103 @@ namespace overlay::windows {
         }
     }
 
+    bool Config::build_modifier_picker(Button &button) {
+        bool changed = false;
+        auto modifier_mask = button.getModifierMask();
+
+        // collect live states and build the closed dropdown summary
+        uint8_t pressed_modifier_mask = 0;
+        std::string modifier_preview;
+        auto *modifier_buttons = games::get_buttons_modifiers(this->games_selected_name);
+        for (uint8_t index = 0; index < games::ModifierButtons::Size; index++) {
+            const uint8_t modifier_bit = UINT8_C(1) << index;
+            if (modifier_buttons && index < modifier_buttons->size() &&
+                GameAPI::Buttons::getState(RI_MGR, modifier_buttons->at(index))) {
+                pressed_modifier_mask |= modifier_bit;
+            }
+            if ((modifier_mask & modifier_bit) != 0) {
+                modifier_preview += modifier_preview.empty() ? "Mod " : "+";
+                modifier_preview += std::to_string(index + 1);
+            }
+        }
+        if (modifier_preview.empty()) {
+            modifier_preview = "None";
+        }
+
+        // color the combo when all requirements are held, but keep its label unchanged
+        const bool all_modifiers_pressed = modifier_mask != 0 &&
+            (pressed_modifier_mask & modifier_mask) == modifier_mask;
+        if (all_modifiers_pressed) {
+            ImGui::PushStyleColor(ImGuiCol_Text, TEXT_COLOR_GREEN);
+        }
+        const bool combo_open = ImGui::BeginCombo("##Modifiers", modifier_preview.c_str());
+        if (all_modifiers_pressed) {
+            ImGui::PopStyleColor();
+        }
+
+        // update requirements while highlighting modifier sources that are currently pressed
+        if (combo_open) {
+            for (uint8_t index = 0; index < games::ModifierButtons::Size; index++) {
+                const uint8_t modifier_bit = UINT8_C(1) << index;
+                bool required = (modifier_mask & modifier_bit) != 0;
+                const auto label = fmt::format("Modifier {}", index + 1);
+                const bool modifier_pressed = (pressed_modifier_mask & modifier_bit) != 0;
+                if (modifier_pressed) {
+                    ImGui::PushStyleColor(ImGuiCol_Text, TEXT_COLOR_GREEN);
+                }
+                const bool requirement_changed = ImGui::Checkbox(label.c_str(), &required);
+                if (modifier_pressed) {
+                    ImGui::PopStyleColor();
+                }
+                if (requirement_changed) {
+                    modifier_mask ^= modifier_bit;
+                    button.setModifierMask(modifier_mask);
+                    changed = true;
+                }
+            }
+            ImGui::EndCombo();
+        }
+        ImGui::SameLine(0.0f, ImGui::GetStyle().ItemInnerSpacing.x);
+        ImGui::TextUnformatted("Modifiers");
+
+        return changed;
+    }
+
     void Config::edit_button_popup(
         const std::string &edit_name,
         const std::string &button_display,
         Button *button,
         const float button_velocity,
-        const int alt_index) {
+        const int alt_index,
+        const bool allow_modifiers) {
 
         const auto button_state = GameAPI::Buttons::getState(RI_MGR, *button, false);
         if (ImGui::BeginPopupModal(edit_name.c_str(), NULL, ImGuiWindowFlags_AlwaysAutoResize)) {
             bool dirty = false;
             auto device = RI_MGR->devices_get(button->getDeviceIdentifier());
 
+            auto switch_device = [&](const std::string &device_identifier) {
+                button->setDeviceIdentifier(device_identifier);
+                button->setAnalogType(ButtonAnalogType::BAT_NONE);
+                button->setDebounceUp(0.0);
+                button->setDebounceDown(0.0);
+                button->setBatThreshold(0);
+                button->setVelocityThreshold(0);
+                button->setVKey(0);
+                button->setInvert(false);
+                button->setModifierMask(0);
+                dirty = true;
+            };
+
             // binding
             ImGui::Text("Binding");
+            ImGui::Separator();
 
             // combo for devices
             std::string device_desc = (device != nullptr) ? device->desc : "Empty (Naive)";
             if (ImGui::BeginCombo("Device Identifier", device_desc.c_str())) {
-                if (ImGui::Selectable("Empty (Naive)", button->isNaive())) {
-                    button->setDeviceIdentifier("");
-                    dirty = true;
+                if (ImGui::Selectable("Empty (Naive)", button->isNaive()) && !button->isNaive()) {
+                    switch_device("");
                 }
                 if (button->isNaive()) {
                     ImGui::SetItemDefaultFocus();
@@ -1910,17 +2024,8 @@ namespace overlay::windows {
                 for (auto &device : RI_MGR->devices_get()) {
                     bool selected = button->getDeviceIdentifier() == device.name.c_str();
                     const auto device_desc = fmt::format("{}##{}", device.desc, device.name);
-                    if (ImGui::Selectable(device_desc.c_str(), selected)) {
-                        button->setDeviceIdentifier(device.name);
-                        // reset controls when switching devices
-                        button->setAnalogType(ButtonAnalogType::BAT_NONE);
-                        button->setDebounceUp(0.0);
-                        button->setDebounceDown(0.0);
-                        button->setBatThreshold(0);
-                        button->setVelocityThreshold(0);
-                        button->setVKey(0);
-                        button->setInvert(false);
-                        dirty = true;
+                    if (ImGui::Selectable(device_desc.c_str(), selected) && !selected) {
+                        switch_device(device.name);
                     }
                     if (selected) {
                         ImGui::SetItemDefaultFocus();
@@ -1928,6 +2033,7 @@ namespace overlay::windows {
                 }
                 ImGui::EndCombo();
             }
+            device = RI_MGR->devices_get(button->getDeviceIdentifier());
 
             // analog type (only for HID)
             const auto bat = button->getAnalogType();
@@ -2219,21 +2325,22 @@ namespace overlay::windows {
                 }
             }
 
+            // modifiers
+            {
+                const bool is_midi = device != nullptr && device->type == rawinput::MIDI;
+                if (allow_modifiers && button->isValid() && !is_midi) {
+                    dirty |= build_modifier_picker(*button);
+                }
+            }
+
             // preview
             if (!button_display.empty()) {
                 ImGui::TextUnformatted("\nPreview");
                 ImGui::Separator();
                 if (button_state == GameAPI::Buttons::State::BUTTON_PRESSED) {
-                    ImGui::PushStyleColor(ImGuiCol_Text, ImVec4(1.f, 0.7f, 0.f, 1.f));
-                }
-                // this doesn't account for utf-8 but whatever
-                if (button_display.size() >= 40) {
-                    ImGui::Text("%.37s...", button_display.c_str());
-                    ImGui::SameLine();
-                    ImGui::HelpMarker(button_display.c_str());
-                } else {
-                    ImGui::TextUnformatted(button_display.c_str());
+                    ImGui::PushStyleColor(ImGuiCol_Text, TEXT_COLOR_GREEN);
                 }
+                ImGui::TextTruncated(button_display, ImGui::GetContentRegionAvail().x);
                 ImGui::TextUnformatted("\n");
                 if (button_state == GameAPI::Buttons::State::BUTTON_PRESSED) {
                     ImGui::PopStyleColor();
@@ -2242,8 +2349,10 @@ namespace overlay::windows {
                 ImGui::TextUnformatted("");
             }
 
+
             // options
-            ImGui::Text("Options");
+            ImGui::TextUnformatted("Options");
+            ImGui::Separator();
 
             // check for debounce
             if (button->getDebounceUp() || button->getDebounceDown()
@@ -2362,6 +2471,7 @@ namespace overlay::windows {
                 ImGui::ProgressBar(button_velocity);
             } else {
                 ImGui::Text("State");
+                ImGui::Separator();
                 ImGui::ProgressBar(button_velocity);
             }
 
@@ -5482,6 +5592,12 @@ namespace overlay::windows {
                 tmpl.buttons.emplace_back(btn);
             }
         }
+        auto *modifier_buttons = games::get_buttons_modifiers(this->games_selected_name);
+        if (modifier_buttons) {
+            for (auto &modifier : *modifier_buttons) {
+                tmpl.modifier_buttons.emplace_back(modifier);
+            }
+        }
 
         // capture keypad buttons
         auto *keypad_buttons = games::get_buttons_keypads(this->games_selected_name);
@@ -5537,6 +5653,17 @@ namespace overlay::windows {
             }
         }
 
+        // clear all modifier buttons
+        auto *modifier_buttons = games::get_buttons_modifiers(this->games_selected_name);
+        if (modifier_buttons) {
+            for (auto &modifier : *modifier_buttons) {
+                for (int ai = (int)modifier.getAlternatives().size() - 1; ai >= 0; ai--) {
+                    clear_button(&modifier.getAlternatives()[ai], ai + 1);
+                }
+                clear_button(&modifier, -1);
+            }
+        }
+
         // clear all keypad buttons
         auto *keypad_buttons = games::get_buttons_keypads(this->games_selected_name);
         if (keypad_buttons) {
@@ -5630,6 +5757,7 @@ namespace overlay::windows {
                             btn.setDebounceDown(entry->debounce_down);
                             btn.setBatThreshold(entry->bat_threshold);
                             btn.setVelocityThreshold(entry->velocity_threshold);
+                            btn.setModifierMask(entry->modifier_mask);
                             ::Config::getInstance().updateBinding(game, btn, -1);
                         } else {
                             Button alt_btn(btn.getName());
@@ -5641,6 +5769,7 @@ namespace overlay::windows {
                             alt_btn.setDebounceDown(entry->debounce_down);
                             alt_btn.setBatThreshold(entry->bat_threshold);
                             alt_btn.setVelocityThreshold(entry->velocity_threshold);
+                            alt_btn.setModifierMask(entry->modifier_mask);
                             alt_btn.setTemporary(true);
                             btn.getAlternatives().push_back(alt_btn);
                             ::Config::getInstance().updateBinding(
@@ -5659,6 +5788,11 @@ namespace overlay::windows {
         if (this->apply_buttons) {
             apply_buttons(tmpl.buttons, games::get_buttons(this->games_selected_name));
         }
+        if (this->apply_modifiers) {
+            apply_buttons(
+                tmpl.modifier_buttons,
+                games::get_buttons_modifiers(this->games_selected_name));
+        }
         if (this->apply_keypads) {
             apply_buttons(tmpl.keypad_buttons, games::get_buttons_keypads(this->games_selected_name));
         }
@@ -5900,7 +6034,7 @@ namespace overlay::windows {
                 ImGui::EndDisabled();
                 ImGui::SameLine();
                 ImGui::HelpMarker(
-                    "Clears all game button, analog, and light bindings.");
+                    "Clears all game button, modifier, keypad, analog, and light bindings.");
                 if (this->all_cleared) {
                     ImGui::SameLine();
                     ImGui::TextUnformatted("Done.");
@@ -5915,6 +6049,8 @@ namespace overlay::windows {
                 bool selection_changed = false;
                 selection_changed |= ImGui::Checkbox("Buttons", &this->apply_buttons);
                 ImGui::SameLine();
+                selection_changed |= ImGui::Checkbox("Modifiers", &this->apply_modifiers);
+                ImGui::SameLine();
                 selection_changed |= ImGui::Checkbox("Keypads", &this->apply_keypads);
                 ImGui::SameLine();
                 selection_changed |= ImGui::Checkbox("Analogs", &this->apply_analogs);
@@ -5924,7 +6060,7 @@ namespace overlay::windows {
                     std::fill(this->template_is_applied.begin(), this->template_is_applied.end(), false);
                 }
 
-                if (!this->apply_buttons && !this->apply_keypads &&
+                if (!this->apply_buttons && !this->apply_modifiers && !this->apply_keypads &&
                     !this->apply_analogs && !this->apply_lights) {
                     ImGui::TextUnformatted("\nYou must select at least one group to apply.\n\n");
                 }
@@ -5964,7 +6100,8 @@ namespace overlay::windows {
                     }
                 }
 
-                if (!apply_buttons && !apply_keypads && !apply_analogs && !apply_lights) {
+                if (!apply_buttons && !apply_modifiers && !apply_keypads &&
+                    !apply_analogs && !apply_lights) {
                     ImGui::BeginDisabled();
                 }
 
@@ -6133,7 +6270,8 @@ namespace overlay::windows {
                     ImGui::EndTable();
                 }
 
-                if (!apply_buttons && !apply_keypads && !apply_analogs && !apply_lights) {
+                if (!apply_buttons && !apply_modifiers && !apply_keypads &&
+                    !apply_analogs && !apply_lights) {
                     ImGui::EndDisabled();
                 }
             }
@@ -6212,12 +6350,14 @@ namespace overlay::windows {
             ImGui::TextUnformatted("Pick which groups to save:");
             ImGui::Checkbox("Buttons", &this->save_buttons);
             ImGui::SameLine();
+            ImGui::Checkbox("Modifiers", &this->save_modifiers);
+            ImGui::SameLine();
             ImGui::Checkbox("Keypads", &this->save_keypads);
             ImGui::SameLine();
             ImGui::Checkbox("Analogs", &this->save_analogs);
             ImGui::SameLine();
             ImGui::Checkbox("Lights", &this->save_lights);
-            if (!this->save_analogs && !this->save_keypads &&
+            if (!this->save_buttons && !this->save_modifiers && !this->save_keypads &&
                 !this->save_analogs && !this->save_lights) {
                 ImGui::TextUnformatted("\nYou must select at least one group to save.\n\n");
             }
@@ -6269,7 +6409,8 @@ namespace overlay::windows {
 
             ImGui::BeginDisabled(
                 !all_labels_set ||
-                (!this->save_buttons && !this->save_keypads && !this->save_analogs && !this->save_lights));
+                (!this->save_buttons && !this->save_modifiers && !this->save_keypads &&
+                 !this->save_analogs && !this->save_lights));
 
             if (ImGui::Button("Save")) {
                 // replace device IDs with labels in the template
@@ -6278,7 +6419,8 @@ namespace overlay::windows {
                         template_save_sources[si], template_save_labels[si]);
                 }
                 if (save_user_template(template_pending_save,
-                        this->save_buttons, this->save_keypads, this->save_analogs, this->save_lights)) {
+                    this->save_buttons, this->save_modifiers, this->save_keypads,
+                    this->save_analogs, this->save_lights)) {
                     template_save_name[0] = '\0';
                     templates_cache_dirty = true;
                 }
@@ -6360,7 +6502,7 @@ namespace overlay::windows {
                             t.rename_source(template_save_sources[si], template_save_labels[si]);
                         }
                     }
-                    save_user_template(t, true, true, true, true);
+                    save_user_template(t, true, true, true, true, true);
                     templates_cache_dirty = true;
                     template_save_sources.clear();
                     template_save_labels.clear();

src/spice2x/overlay/windows/config.h

@@ -26,6 +26,7 @@ namespace overlay::windows {
         CONTROLLER_PAGE_INVALID,
         CONTROLLER_PAGE_BUTTONS,
         CONTROLLER_PAGE_KEYPADS,
+        CONTROLLER_PAGE_MODIFIERS,
         CONTROLLER_PAGE_ANALOGS,
         CONTROLLER_PAGE_OVERLAY,
         CONTROLLER_PAGE_LIGHTS,
@@ -119,10 +120,12 @@ namespace overlay::windows {
         std::vector<std::string> template_save_sources;
         std::vector<std::string> template_save_labels;
         bool apply_buttons = true;
+        bool apply_modifiers = true;
         bool apply_keypads = true;
         bool apply_analogs = true;
         bool apply_lights = true;
         bool save_buttons = true;
+        bool save_modifiers = true;
         bool save_keypads = true;
         bool save_analogs = true;
         bool save_lights = true;
@@ -168,12 +171,14 @@ namespace overlay::windows {
 
         void bind_button_popup(const std::string &bind_name, Button *button, const int button_it_max, const int alt_index);
         void naive_button_popup(const std::string &naive_string, Button *button, const int button_it_max, const int alt_index);
+        bool build_modifier_picker(Button &button);
         void edit_button_popup(
             const std::string &edit_name,
             const std::string &button_display,
             Button *button,
             const float button_velocity,
-            const int alt_index);
+            const int alt_index,
+            const bool allow_modifiers);
         void clear_button(Button *button, const int alt_index, std::optional<unsigned short> vKey_default = std::nullopt);
         void reset_button_to_default(Button *button, unsigned short vKey_default);
         unsigned int get_keypad_top_row(const Button &button);

src/spice2x/overlay/windows/controller_presets.cpp

@@ -6,7 +6,7 @@
 
 namespace overlay::windows {
 
-    // helpers - iterate both buttons and keypad_buttons
+    // helpers - iterate all button groups
     static void count_buttons_in(const std::vector<TemplateButtonBinding> &btns, int &naive, int &device) {
         for (auto &btn : btns) {
             if (btn.primary.is_naive()) naive++;
@@ -21,6 +21,7 @@ namespace overlay::windows {
     int ControllerTemplate::count_naive_buttons() const {
         int naive = 0, device = 0;
         count_buttons_in(buttons, naive, device);
+        count_buttons_in(modifier_buttons, naive, device);
         count_buttons_in(keypad_buttons, naive, device);
         return naive;
     }
@@ -28,6 +29,7 @@ namespace overlay::windows {
     int ControllerTemplate::count_device_buttons() const {
         int naive = 0, device = 0;
         count_buttons_in(buttons, naive, device);
+        count_buttons_in(modifier_buttons, naive, device);
         count_buttons_in(keypad_buttons, naive, device);
         return device;
     }
@@ -64,6 +66,7 @@ namespace overlay::windows {
     std::set<std::string> ControllerTemplate::get_used_devices() const {
         std::set<std::string> devices;
         collect_devices_from(buttons, devices);
+        collect_devices_from(modifier_buttons, devices);
         collect_devices_from(keypad_buttons, devices);
         for (auto &a : analogs) {
             if (a.is_device()) devices.insert(a.device_identifier);
@@ -94,6 +97,7 @@ namespace overlay::windows {
         bool has_naive = false;
 
         collect_sources_from(buttons, sources_set, has_naive);
+        collect_sources_from(modifier_buttons, sources_set, has_naive);
         collect_sources_from(keypad_buttons, sources_set, has_naive);
         for (auto &a : analogs) {
             if (a.is_device()) {
@@ -131,6 +135,7 @@ namespace overlay::windows {
             }
         };
         rename_in_buttons(buttons);
+        rename_in_buttons(modifier_buttons);
         rename_in_buttons(keypad_buttons);
         for (auto &a : analogs) {
             if (a.device_identifier == old_id) a.device_identifier = new_id;
@@ -181,6 +186,16 @@ namespace overlay::windows {
             }
         }
 
+        // modifier buttons
+        std::vector<std::string> modifier_lines;
+        collect_btn_lines(modifier_buttons, modifier_lines);
+        if (!modifier_lines.empty()) {
+            result += "Modifiers:\n";
+            for (auto &line : modifier_lines) {
+                result += "  " + line + "\n";
+            }
+        }
+
         // keypad buttons
         std::vector<std::string> kp_lines;
         collect_btn_lines(keypad_buttons, kp_lines);

src/spice2x/overlay/windows/controller_presets.h

@@ -19,6 +19,7 @@ namespace overlay::windows {
         double debounce_down = 0.0;
         int bat_threshold = 0;
         unsigned short velocity_threshold = 0;
+        uint8_t modifier_mask = 0;
 
         bool is_naive() const { return device_identifier.empty() && vKey != INVALID_VKEY; }
         bool is_device() const { return !device_identifier.empty(); }
@@ -34,6 +35,7 @@ namespace overlay::windows {
             e.debounce_down = btn.getDebounceDown();
             e.bat_threshold = btn.getBatThreshold();
             e.velocity_threshold = btn.getVelocityThreshold();
+            e.modifier_mask = btn.getModifierMask();
             return e;
         }
     };
@@ -123,6 +125,7 @@ namespace overlay::windows {
         std::string game_name;
         bool is_builtin = false;
         std::vector<TemplateButtonBinding> buttons;
+        std::vector<TemplateButtonBinding> modifier_buttons;
         std::vector<TemplateButtonBinding> keypad_buttons;
         std::vector<TemplateAnalogBinding> analogs;
         std::vector<TemplateLightBinding> lights;
@@ -150,6 +153,7 @@ namespace overlay::windows {
     bool save_user_template(
         const ControllerTemplate &tmpl,
         const bool save_buttons,
+        const bool save_modifiers,
         const bool save_keypads,
         const bool save_analogs,
         const bool save_lights);

src/spice2x/overlay/windows/generic_sub.cpp

@@ -42,7 +42,7 @@ namespace overlay::windows {
         this->texture_width = 0;
         this->texture_height = 0;
 
-        overlay->set_subscreen_mouse_handler([this](LONG *x, LONG *y) -> bool {
+        overlay->set_subscreen_touch_transform([this](LONG *x, LONG *y) -> bool {
             // convert to normalized form (relative window coordinates 0.f-1.f)
             ImVec2 xy;
 

src/spice2x/overlay/windows/nostalgia_touch_piano.cpp

@@ -0,0 +1,149 @@
+#include "nostalgia_touch_piano.h"
+
+#include <cmath>
+
+#include "external/imgui/imgui_internal.h"
+#include "games/nost/touch_mode.h"
+
+namespace overlay::windows {
+
+    static constexpr float BUTTON_WIDTH = 144.f;
+    static constexpr float BUTTON_HEIGHT = 40.f;
+    static constexpr float WINDOW_PADDING = 4.f;
+    static constexpr float EDGE_MARGIN = 4.f;
+    static constexpr float PIANO_HEIGHT_RATIO = 0.08f;
+    static constexpr float PIANO_LEFT_GAP = 11.f;
+    static constexpr float PIANO_RIGHT_GAP = 10.f;
+    static constexpr uint32_t PIANO_KEY_COUNT = 28;
+
+    static constexpr ImU32 PIANO_KEY_COLOR = IM_COL32(255, 255, 255, 50);
+    static constexpr ImU32 PIANO_KEY_ACTIVE_COLOR = IM_COL32(255, 48, 48, 160);
+    static constexpr ImU32 PIANO_KEY_BORDER_COLOR = IM_COL32(0, 0, 0, 100);
+
+    struct ButtonPalette {
+        ImVec4 normal;
+        ImVec4 hovered;
+        ImVec4 active;
+    };
+
+    static const ButtonPalette NAV_MODE_PALETTE {
+        ImVec4(0.10f, 0.45f, 0.28f, 0.72f),
+        ImVec4(0.14f, 0.58f, 0.36f, 0.82f),
+        ImVec4(0.08f, 0.34f, 0.21f, 0.90f),
+    };
+    static const ButtonPalette PIANO_MODE_PALETTE {
+        ImVec4(0.15f, 0.32f, 0.62f, 0.72f),
+        ImVec4(0.20f, 0.42f, 0.78f, 0.82f),
+        ImVec4(0.10f, 0.24f, 0.50f, 0.90f),
+    };
+
+    static void draw_piano_keys(
+        const ImVec2 &display_size,
+        LONG client_width,
+        uint32_t key_state) {
+
+        if (display_size.x <= 0.f || display_size.y <= 0.f || client_width <= 0) {
+            return;
+        }
+
+        // this is only a visual guide; native touch routing owns the actual input
+        const float left_gap = PIANO_LEFT_GAP * display_size.x / client_width;
+        const float right_gap = PIANO_RIGHT_GAP * display_size.x / client_width;
+        const float piano_width = display_size.x - left_gap - right_gap;
+        if (piano_width <= 0.f) {
+            return;
+        }
+
+        const float key_width = piano_width / PIANO_KEY_COUNT;
+        const float key_top = display_size.y * (1.f - PIANO_HEIGHT_RATIO);
+        auto *draw_list = ImGui::GetBackgroundDrawList();
+
+        for (uint32_t key = 0; key < PIANO_KEY_COUNT; key++) {
+            const ImVec2 key_min(left_gap + key * key_width, key_top);
+            const ImVec2 key_max(left_gap + (key + 1) * key_width, display_size.y);
+            const bool active = (key_state & (UINT32_C(1) << key)) != 0;
+            draw_list->AddRectFilled(
+                key_min,
+                key_max,
+                active ? PIANO_KEY_ACTIVE_COLOR : PIANO_KEY_COLOR);
+            draw_list->AddRect(key_min, key_max, PIANO_KEY_BORDER_COLOR);
+        }
+    }
+
+    NostalgiaTouchPiano::NostalgiaTouchPiano(SpiceOverlay *overlay) : Window(overlay) {
+        this->title = "Nostalgia Touch Piano";
+        this->flags = ImGuiWindowFlags_NoTitleBar
+            | ImGuiWindowFlags_NoResize
+            | ImGuiWindowFlags_NoCollapse
+            | ImGuiWindowFlags_NoMove
+            | ImGuiWindowFlags_NoDocking
+            | ImGuiWindowFlags_NoBackground
+            | ImGuiWindowFlags_NoSavedSettings
+            | ImGuiWindowFlags_NoNav
+            | ImGuiWindowFlags_NoBringToFrontOnFocus;
+        this->window_padding = overlay::apply_scaling_to_vector(WINDOW_PADDING, WINDOW_PADDING);
+        this->set_active(true);
+    }
+
+    void NostalgiaTouchPiano::calculate_initial_window() {
+        this->init_size = overlay::apply_scaling_to_vector(
+            BUTTON_WIDTH + WINDOW_PADDING * 2,
+            BUTTON_HEIGHT + WINDOW_PADDING * 2);
+        this->init_pos = overlay::apply_scaling_to_vector(EDGE_MARGIN, EDGE_MARGIN);
+    }
+
+    void NostalgiaTouchPiano::build_content() {
+        // keep the control anchored while the game window changes size or mode
+        ImGui::SetWindowPos(
+            overlay::apply_scaling_to_vector(EDGE_MARGIN, EDGE_MARGIN),
+            ImGuiCond_Always);
+
+        // stay above regular overlay windows, but never cover a blocking modal
+        ImGuiWindow *mode_window = ImGui::GetCurrentWindow();
+        if (ImGuiWindow *modal = ImGui::GetTopMostPopupModal()) {
+            ImGui::BringWindowToDisplayBehind(mode_window, modal);
+        } else {
+            ImGui::BringWindowToDisplayFront(mode_window);
+        }
+
+        const bool nav_mode =
+            games::nost::touch_mode::current_mode() == games::nost::touch_mode::Mode::Nav;
+        const char *label = nav_mode ? "Nav Mode" : "Piano Mode";
+
+        // make the active routing mode recognizable without reading the label
+        const auto &palette = nav_mode ? NAV_MODE_PALETTE : PIANO_MODE_PALETTE;
+        ImGui::PushStyleColor(ImGuiCol_Button, palette.normal);
+        ImGui::PushStyleColor(ImGuiCol_ButtonHovered, palette.hovered);
+        ImGui::PushStyleColor(ImGuiCol_ButtonActive, palette.active);
+        ImGui::Button(label, overlay::apply_scaling_to_vector(BUTTON_WIDTH, BUTTON_HEIGHT));
+        ImGui::PopStyleColor(3);
+
+        const auto &io = ImGui::GetIO();
+        RECT client_rect {};
+        if (io.DisplaySize.x > 0.f && io.DisplaySize.y > 0.f &&
+            GetClientRect(this->overlay->get_window(), &client_rect)) {
+
+            // convert the rendered imgui rectangle into the client coordinates
+            // used by hardware touch publication and piano-key mapping
+            const auto item_min = ImGui::GetItemRectMin();
+            const auto item_max = ImGui::GetItemRectMax();
+            const auto client_width = client_rect.right - client_rect.left;
+            const auto client_height = client_rect.bottom - client_rect.top;
+            if (!nav_mode) {
+                draw_piano_keys(
+                    io.DisplaySize,
+                    client_width,
+                    games::nost::touch_mode::piano_key_state());
+            }
+
+            RECT button_bounds {
+                static_cast<LONG>(std::lround(item_min.x * client_width / io.DisplaySize.x)),
+                static_cast<LONG>(std::lround(item_min.y * client_height / io.DisplaySize.y)),
+                static_cast<LONG>(std::lround(item_max.x * client_width / io.DisplaySize.x)),
+                static_cast<LONG>(std::lround(item_max.y * client_height / io.DisplaySize.y)),
+            };
+            games::nost::touch_mode::publish_button_bounds(
+                this->overlay->get_window(), button_bounds);
+        }
+    }
+}

src/spice2x/overlay/windows/nostalgia_touch_piano.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#include "overlay/window.h"
+
+namespace overlay::windows {
+
+    // persistent mode control rendered independently of the main overlay visibility
+    class NostalgiaTouchPiano : public Window {
+    public:
+        explicit NostalgiaTouchPiano(SpiceOverlay *overlay);
+
+        void calculate_initial_window() override;
+        void build_content() override;
+    };
+}

src/spice2x/overlay/windows/patch_manager.h

@@ -1,183 +1,21 @@
 #pragma once
 
 #include "overlay/window.h"
-#include <map>
-#include <functional>
-#include <filesystem>
-#include <optional>
-#include "external/rapidjson/document.h"
+#include "patcher/patch_manager.h"
 
 namespace overlay::windows {
 
-    enum class PatchType {
-        Unknown,
-        Memory,
-        Signature,
-        Union,
-        Integer,
-    };
-
-    enum class PatchStatus {
-        Error,
-        Disabled,
-        Enabled,
-    };
-
-    enum class PatchUrlStatus {
-        Valid,
-        Invalid,
-        Unapplied,
-        ValidButNoData,
-        Partial,
-    };
-
-    struct MemoryPatch {
-        std::string dll_name = "";
-        std::shared_ptr<uint8_t[]> data_disabled = nullptr;
-        size_t data_disabled_len = 0;
-        std::shared_ptr<uint8_t[]> data_enabled = nullptr;
-        size_t data_enabled_len = 0;
-        uint64_t data_offset = 0;
-        uint8_t *data_offset_ptr = nullptr;
-        bool fatal_error = false;
-    };
-
-    struct PatchData;
-    struct SignaturePatch {
-        std::string dll_name = "";
-        std::string signature = "", replacement = "";
-        uint64_t offset = 0;
-        int64_t usage = 0;
-
-        MemoryPatch to_memory(PatchData *patch);
-    };
-
-    struct UnionPatch {
-        std::string name = "";
-        std::string dll_name = "";
-        std::shared_ptr<uint8_t[]> data = nullptr;
-        size_t data_len = 0;
-        uint64_t offset = 0;
-        uint8_t* data_offset_ptr = nullptr;
-        bool fatal_error = false;
-    };
-
-    struct NumberPatch {
-        std::string dll_name = "";
-        uint64_t data_offset = 0;
-        uint8_t* data_offset_ptr = nullptr;
-        int32_t min;
-        int32_t max;
-        int32_t value;
-        size_t size_in_bytes;
-        bool fatal_error = false;
-    };
-
-    struct PatchData {
-        bool enabled;
-        std::string game_code;
-        int datecode_min = 0;
-        int datecode_max = 0;
-        std::string name, description, caution;
-        std::string name_in_lower_case = "";
-        PatchType type;
-        bool preset;
-        std::vector<MemoryPatch> patches_memory;
-        std::vector<UnionPatch> patches_union;
-        NumberPatch patch_number;
-        PatchStatus last_status;
-        std::string hash;
-        bool unverified = false;
-        std::string peIdentifier;
-        std::string error_reason = "";
-
-        // for union patch only
-        std::string selected_union_name = "";
-    };
-
-    extern std::optional<std::string> PATCH_MANAGER_CFG_PATH_OVERRIDE;
-
-    std::string get_game_identifier(const std::filesystem::path& dll_path, bool print_info=false);
-
     class PatchManager : public Window {
     public:
-
-        PatchManager(SpiceOverlay *overlay, bool apply_patches = false);
+        explicit PatchManager(SpiceOverlay *overlay);
         ~PatchManager() override;
 
         void build_content() override;
-        void reload_local_patches(bool apply_patches = false);
-        bool import_remote_patches_to_disk();
-        bool load_from_patches_json(bool apply_patches);
-        bool import_remote_patches_for_dll(const std::string& url, const std::string& dll_name);
-        void hard_apply_patches();
-        void load_embedded_patches(bool apply_patches);
 
     private:
-
-        // configuration
-        static std::filesystem::path config_path;
-        static bool config_dirty;
-        static bool setting_auto_apply;
-        static std::vector<std::string> setting_auto_apply_list;
-        static std::vector<std::string> setting_patches_enabled;
-        static std::map<std::string, std::string> setting_union_patches_enabled;
-        static std::map<std::string, int64_t> setting_int_patches_enabled;
-        static std::string patch_url;
         static std::string patch_name_filter;
 
-        static std::filesystem::path LOCAL_PATCHES_PATH;
-        static std::string ACTIVE_JSON_FILE;
-
-        // patches
-        static std::vector<PatchData> patches;
-        static bool local_patches_initialized;
-
-        // cached sorted view of `patches` for the table, stored as indices so a
-        // stale entry can never dangle if `patches` is rebuilt; rebuilt only when
-        // the sort order changes or the patch list is reloaded (not every frame)
-        static std::vector<size_t> patches_sorted;
-
-        void config_load();
-        void config_save();
-
-        // rebuild the cached sorted view of `patches` from the active table's
-        // sort specs; no-op unless the sort changed or the patch list changed
         void update_sorted_patches();
-
-        void append_patches(
-            std::string &patches_json,
-            bool apply_patches = false,
-            std::function<bool(const PatchData&)> filter = std::function<bool(const PatchData&)>(),
-            std::string pe_identifier_for_patch = "");
-
-        void show_patch_tooltip(const PatchData& patch);
-
-        bool is_game_id_wildcard_matched(const std::string& id_from_config);
+        void show_patch_tooltip(const patcher::PatchData& patch);
     };
-
-    PatchStatus is_patch_active(PatchData &patch);
-    bool apply_patch(PatchData &patch, bool active);
-
-    int64_t parse_little_endian_int(uint8_t* bytes, size_t size);
-    void int_to_little_endian_bytes(int64_t value, uint8_t* bytes, size_t size);
-
-    std::vector<uint8_t>* find_in_dll_map(
-        const std::string& dll_name, size_t offset, size_t size);
-    std::vector<uint8_t>* find_in_dll_map_org(
-        const std::string& dll_name, size_t offset, size_t size);
-
-    bool restore_bytes_from_dll_map_org(
-        uint8_t* destination, const std::string& dll_name, size_t offset, size_t size);
-
-    void create_dll_backup(
-        std::vector<std::filesystem::path>& written_list, const std::filesystem::path& dll_path);
-    std::string fix_up_dll_name(const std::string& dll_name);
-    uint8_t* get_dll_offset_for_patch_apply(
-        const std::string& dll_name, const uint64_t data_offset, const size_t size_in_bytes);
-
-    uint64_t parse_json_data_offset(
-        const std::string &patch_name, const rapidjson::Value &value);
-
-    void print_auto_apply_status(PatchData &patch);
 }

src/spice2x/patcher/config.cpp

@@ -0,0 +1,265 @@
+#include "internal.h"
+
+#include <algorithm>
+#include "avs/game.h"
+#include "cfg/configurator.h"
+#include "external/hash-library/sha256.h"
+#include "external/rapidjson/document.h"
+#include "external/rapidjson/prettywriter.h"
+#include "external/rapidjson/stringbuffer.h"
+#include "util/fileutils.h"
+#include "util/logging.h"
+
+using namespace rapidjson;
+
+namespace patcher {
+
+    bool is_game_id_wildcard_matched(const std::string& id_from_config) {
+        return ((id_from_config.compare(0, 3, avs::game::MODEL) == 0) &&
+                (id_from_config.compare(10, 10, avs::game::EXT) == 0));
+    }
+
+    void config_load() {
+        log_info("patchmanager", "loading config");
+
+        // read config file
+        std::string config = fileutils::text_read(config_path);
+        if (!config.empty()) {
+
+            // parse document
+            Document doc;
+            doc.Parse(config.c_str());
+
+            // check parse error
+            auto error = doc.GetParseError();
+            if (error) {
+                log_warning("patchmanager", "config file parse error: {}", static_cast<uint32_t>(error));
+            }
+
+            // verify root is a dict
+            if (doc.IsObject()) {
+
+                // read auto apply settings
+                auto auto_apply = doc.FindMember("auto_apply");
+                if (auto_apply != doc.MemberEnd() && auto_apply->value.IsArray()) {
+
+                    // get game id
+                    const auto game_id = avs::game::get_identifier();
+
+                    // iterate entries
+                    setting_auto_apply = false;
+                    setting_auto_apply_list.clear();
+                    for (auto &entry : auto_apply->value.GetArray()) {
+                        if (entry.IsString()) {
+
+                            // check if this is our game identifier
+                            const std::string entry_id = entry.GetString();
+
+                            if (!setting_auto_apply) {
+                                if (game_id == entry_id) {
+                                    // exact match
+                                    setting_auto_apply = true;
+                                    log_misc(
+                                        "patchmanager",
+                                        "matched auto apply entry by full game identifier: {}",
+                                        entry_id);
+
+                                } else if (is_game_id_wildcard_matched(entry_id)) {
+                                    // match on model and ext, ignoring dest/spec/rev
+                                    // sample: LDJ:J:E:A:2025011400
+                                    setting_auto_apply = true;
+                                    log_misc(
+                                        "patchmanager",
+                                        "matched auto apply entry by partial game identifier: {}:?:?:?:{}",
+                                        avs::game::MODEL, avs::game::EXT);
+                                }
+                            }
+
+                            // move to list
+                            setting_auto_apply_list.emplace_back(entry_id);
+                        }
+                    }
+                    if (!setting_auto_apply) {
+                        log_misc(
+                            "patchmanager",
+                            "no auto apply entry matched, patches will not load automatically");
+                    }
+                }
+
+                // read enabled patches
+                auto patches_enabled = doc.FindMember("patches_enabled");
+                if (patches_enabled != doc.MemberEnd() && patches_enabled->value.IsArray()) {
+                    setting_patches_enabled.clear();
+                    for (const auto &patch : patches_enabled->value.GetArray()) {
+                        if (patch.IsString()) {
+                            setting_patches_enabled.emplace_back(std::string(patch.GetString()));
+                        }
+                    }
+                }
+                // read enabled union patches
+                auto patches_union_enabled = doc.FindMember("union_patches_enabled");
+                if (patches_union_enabled != doc.MemberEnd() && patches_union_enabled->value.IsObject()) {
+                    setting_union_patches_enabled.clear();
+                    for (auto it = patches_union_enabled->value.MemberBegin(); it != patches_union_enabled->value.MemberEnd(); ++it) {
+                        if (it->name.IsString() && it->value.IsString()) {
+                            setting_union_patches_enabled[it->name.GetString()] = it->value.GetString();
+                        }
+                    }
+                }
+                // read enabled integer patches
+                auto patches_int_enabled = doc.FindMember("integer_patches_enabled");
+                if (patches_int_enabled != doc.MemberEnd() && patches_int_enabled->value.IsObject()) {
+                    setting_int_patches_enabled.clear();
+                    for (auto it = patches_int_enabled->value.MemberBegin(); it != patches_int_enabled->value.MemberEnd(); ++it) {
+                        if (it->name.IsString() && it->value.IsNumber()) {
+                            setting_int_patches_enabled[it->name.GetString()] = it->value.GetInt();
+                        }
+                    }
+                }
+
+                // read remote patch URLs
+                auto remote_url_history = doc.FindMember("remote_url_history");
+                if (remote_url_history != doc.MemberEnd() && remote_url_history->value.IsArray()) {
+                    url_recents.clear();
+                    for (const auto &url : remote_url_history->value.GetArray()) {
+                        if (url.IsString()) {
+                            url_recents.emplace_back(std::string(url.GetString()));
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    std::string patch_hash(PatchData &patch) {
+        SHA256 hash;
+        hash.add(patch.game_code.c_str(), patch.game_code.length());
+        if (patch.datecode_min != 0 || patch.datecode_max != 0) {
+            hash.add(&patch.datecode_min, sizeof(patch.datecode_min));
+            hash.add(&patch.datecode_max, sizeof(patch.datecode_max));
+        }
+        if (!patch.peIdentifier.empty()) {
+            hash.add(patch.peIdentifier.c_str(), patch.peIdentifier.length());
+        }
+        hash.add(patch.name.c_str(), patch.name.length());
+        hash.add(patch.description.c_str(), patch.description.length());
+        return hash.getHash();
+    }
+
+    void config_save() {
+
+        // create document
+        Document doc;
+        doc.Parse(
+                "{"
+                "  \"auto_apply\": [],"
+                "  \"patches_enabled\": [],"
+                "  \"union_patches_enabled\": {},"
+                "  \"integer_patches_enabled\": {},"
+                "  \"remote_url_history\": []"
+                "}"
+        );
+
+        // check parse error
+        auto error = doc.GetParseError();
+        if (error) {
+            log_warning("patchmanager", "template parse error: {}", static_cast<uint32_t>(error));
+        }
+
+        // auto apply setting
+        auto &auto_apply_list = doc["auto_apply"];
+        auto game_id = avs::game::get_identifier();
+        bool game_id_added = false;
+        for (auto &entry : setting_auto_apply_list) {
+            if (entry == game_id || is_game_id_wildcard_matched(entry)) {
+                if (!setting_auto_apply) {
+                    continue;
+                }
+                game_id_added = true;
+            }
+            auto_apply_list.PushBack(StringRef(entry.c_str()), doc.GetAllocator());
+        }
+        if (setting_auto_apply && !game_id_added) {
+            auto_apply_list.PushBack(StringRef(game_id.c_str()), doc.GetAllocator());
+        }
+
+        // get enabled patches
+        auto &doc_patches_enabled = doc["patches_enabled"];
+        auto &doc_union_patches_enable = doc["union_patches_enabled"];
+        auto &doc_int_patches_enable = doc["integer_patches_enabled"];
+        for (auto &patch : patches) {
+            auto hash = patch_hash(patch);
+
+            if (patch.type == PatchType::Union) {
+                // enable hash if known as enabled, overridden and missing from list
+                if (patch.enabled) {
+                    setting_union_patches_enabled[hash] = patch.selected_union_name;
+                } else {
+                    setting_union_patches_enabled.erase(hash);
+                }
+            } else if (patch.type == PatchType::Integer) {
+                if (patch.enabled) {
+                    setting_int_patches_enabled[hash] = patch.patch_number.value;
+                } else {
+                    setting_int_patches_enabled.erase(hash);
+                }
+            } else {
+                // hash patch and find entry
+                auto entry = std::find(setting_patches_enabled.begin(), setting_patches_enabled.end(), hash);
+
+                // enable hash if known as enabled, overridden and missing from list
+                if ((patch.last_status == PatchStatus::Enabled && patch.enabled)
+                    || (cfg::CONFIGURATOR_STANDALONE && patch.last_status == PatchStatus::Error && patch.enabled)) {
+                    if (entry == setting_patches_enabled.end()) {
+                        setting_patches_enabled.emplace_back(hash);
+                    }
+                }
+
+                // disable hash if patch known as disabled
+                if (patch.last_status == PatchStatus::Disabled
+                    || (cfg::CONFIGURATOR_STANDALONE && patch.last_status == PatchStatus::Error && !patch.enabled)) {
+                    if (entry != setting_patches_enabled.end()) {
+                        setting_patches_enabled.erase(entry);
+                    }
+                }
+            }
+        }
+
+        // add hashes to document
+        for (auto &hash : setting_patches_enabled) {
+            Value hash_value(hash.c_str(), doc.GetAllocator());
+            doc_patches_enabled.PushBack(hash_value, doc.GetAllocator());
+        }
+
+        for (auto& it : setting_union_patches_enabled) {
+            const std::string& key = it.first;
+            const std::string& val = it.second;
+            doc_union_patches_enable.AddMember(StringRef(key.c_str()), StringRef(val.c_str()), doc.GetAllocator());
+        }
+
+        for (auto& it : setting_int_patches_enabled) {
+            const std::string& key = it.first;
+            const int32_t& val = it.second;
+            doc_int_patches_enable.AddMember(StringRef(key.c_str()), val, doc.GetAllocator());
+        }
+
+        // remote URLs
+        auto &doc_url_history = doc["remote_url_history"];
+        for (auto& url : url_recents) {
+            Value url_value(url.c_str(), doc.GetAllocator());
+            doc_url_history.PushBack(url_value, doc.GetAllocator());
+        }
+
+        // build JSON
+        StringBuffer buffer;
+        PrettyWriter<StringBuffer> writer(buffer);
+        doc.Accept(writer);
+
+        // save to file
+        if (fileutils::write_config_file("patchmanager", config_path, buffer.GetString())) {
+            config_dirty = false;
+        } else {
+            log_warning("patchmanager", "unable to save config file");
+        }
+    }
+}

src/spice2x/patcher/internal.h

@@ -0,0 +1,72 @@
+#pragma once
+
+#include <map>
+#include <utility>
+
+#include "patch_manager.h"
+#include "external/rapidjson/document.h"
+#include "util/nt_loader.h"
+
+namespace patcher {
+
+    // internal engine state (patcher module only)
+    extern std::vector<std::string> setting_auto_apply_list;
+    extern std::vector<std::string> setting_patches_enabled;
+    extern std::map<std::string, std::string> setting_union_patches_enabled;
+    extern std::map<std::string, int64_t> setting_int_patches_enabled;
+    extern std::map<std::pair<std::string, std::string>, PatchGroup> patch_groups;
+    extern std::filesystem::path LOCAL_PATCHES_PATH;
+    extern std::map<std::string, std::vector<std::string>> EXTRA_DLLS;
+    extern bool ldr_registered;
+    extern void *ldr_notify_cookie;
+    extern std::vector<std::string> ldr_target_libraries;
+
+    // internal helpers
+    void append_patches(
+        std::string& patches_json,
+        bool apply_patches = false,
+        std::function<bool(const PatchData&)> filter = std::function<bool(const PatchData&)>(),
+        std::string pe_identifier_for_patch = "");
+    bool is_game_id_wildcard_matched(const std::string& id_from_config);
+    std::string getFromUrl(const std::string& dll_name, const std::string& url);
+    bool load_from_patches_json(bool apply_patches);
+    void load_embedded_patches(bool apply_patches);
+    bool import_remote_patches_for_dll(const std::string& url, const std::string& dll_name);
+    bool is_patch_group_definition(const rapidjson::Value& patch);
+    std::map<std::pair<std::string, std::string>, PatchGroup> parse_patch_group_definitions(
+        const rapidjson::Document& doc);
+    std::string resolve_patch_group_id(
+        const rapidjson::Value& patch,
+        const std::map<std::pair<std::string, std::string>, PatchGroup>& groups,
+        const std::string& game_code,
+        const char *patch_name);
+    void register_patch_group(
+        PatchData& patch,
+        const std::map<std::pair<std::string, std::string>, PatchGroup>& definitions);
+    VOID CALLBACK loader_notification(ULONG reason, PCLDR_DLL_NOTIFICATION_DATA data, PVOID context);
+
+    std::string patch_hash(PatchData& patch);
+    void clear_dll_maps();
+
+    int64_t parse_little_endian_int(uint8_t *bytes, size_t size);
+    void int_to_little_endian_bytes(int64_t value, uint8_t *bytes, size_t size);
+
+    std::vector<uint8_t> *find_in_dll_map(
+        const std::string& dll_name, size_t offset, size_t size);
+    std::vector<uint8_t> *find_in_dll_map_org(
+        const std::string& dll_name, size_t offset, size_t size);
+
+    bool restore_bytes_from_dll_map_org(
+        uint8_t *destination, const std::string& dll_name, size_t offset, size_t size);
+
+    void create_dll_backup(
+        std::vector<std::filesystem::path>& written_list, const std::filesystem::path& dll_path);
+    std::string fix_up_dll_name(const std::string& dll_name);
+    uint8_t *get_dll_offset_for_patch_apply(
+        const std::string& dll_name, uint64_t data_offset, size_t size_in_bytes);
+
+    uint64_t parse_json_data_offset(
+        const std::string& patch_name, const rapidjson::Value& value);
+
+    void print_auto_apply_status(PatchData& patch);
+}

src/spice2x/patcher/lifecycle.cpp

@@ -0,0 +1,120 @@
+#include "internal.h"
+
+#include <algorithm>
+#include <windows.h>
+
+#include "avs/game.h"
+#include "cfg/configurator.h"
+#include "util/fileutils.h"
+#include "util/logging.h"
+#include "util/utils.h"
+
+namespace patcher {
+
+    std::optional<std::string> PATCH_MANAGER_CFG_PATH_OVERRIDE;
+
+    std::filesystem::path config_path;
+    bool config_dirty = false;
+    bool setting_auto_apply = false;
+
+    std::vector<std::string> setting_auto_apply_list;
+    std::vector<std::string> setting_patches_enabled;
+
+    std::map<std::string, std::string> setting_union_patches_enabled;
+    std::map<std::string, int64_t> setting_int_patches_enabled;
+
+    std::string patch_url;
+
+    std::filesystem::path LOCAL_PATCHES_PATH("patches");
+    std::string ACTIVE_JSON_FILE;
+
+    std::vector<PatchData> patches;
+    bool local_patches_initialized = false;
+    std::vector<size_t> patches_sorted;
+    std::map<std::pair<std::string, std::string>, PatchGroup> patch_groups;
+    std::map<std::string, std::vector<std::string>> EXTRA_DLLS = {
+        {"jubeat.dll", {"music_db.dll", "coin.dll"}},
+        {"arkmdxp3.dll", {"gamemdx.dll"}},
+        {"arkmdxp4.dll", {"gamemdx.dll"}},
+        {"arkmdxbio2.dll", {"gamemdx.dll"}},
+        {"arkndd.dll", {"gamendd.dll"}},
+        {"arkkep.dll", {"game.dll"}},
+        {"arkjc9.dll", {"gamejc9.dll"}},
+        {"arkkdm.dll", {"gamekdm.dll"}},
+        {"arkmmd.dll", {"gamemmd.dll"}},
+        {"arkklp.dll", {"lpac.dll"}},
+        {"arknck.dll", {"weac.dll"}},
+        {"gdxg.dll", {"game.dll", "libshare-pj.dll", "boot.dll"}}
+    };
+
+    std::string url_fetch_errors;
+    size_t url_recent_idx = -1;
+    std::vector<std::string> url_recents;
+
+    bool ldr_registered = false;
+    void *ldr_notify_cookie = nullptr;
+    std::vector<std::string> ldr_target_libraries;
+
+    void init() {
+        if (PATCH_MANAGER_CFG_PATH_OVERRIDE.has_value()) {
+            config_path = PATCH_MANAGER_CFG_PATH_OVERRIDE.value();
+            log_info("patchmanager", "using custom config file path: {}", config_path);
+        } else {
+            config_path =
+                fileutils::get_config_file_path("patchmanager", "spicetools_patch_manager.json");
+        }
+
+        // register for DLL load notifications so patches can be (re)applied as
+        // the game's target libraries come into memory. registration happens
+        // once and is left in place for the lifetime of the process.
+        if (!ldr_registered) {
+            ldr_target_libraries = getExtraDlls(avs::game::DLL_NAME);
+            ldr_target_libraries.push_back(avs::game::DLL_NAME);
+
+            const auto register_fn = reinterpret_cast<decltype(&LdrRegisterDllNotification)>(
+                GetProcAddress(GetModuleHandleW(L"ntdll.dll"), "LdrRegisterDllNotification"));
+
+            if (register_fn && NT_SUCCESS(register_fn(
+                    0, &loader_notification, nullptr, &ldr_notify_cookie))) {
+                log_info("patchmanager", "registered for DLL load notifications");
+            } else {
+                log_warning("patchmanager", "failed to register for DLL load notifications");
+            }
+
+            ldr_registered = true;
+        }
+
+        if (!local_patches_initialized) {
+            patch_url.clear();
+            if (fileutils::file_exists(config_path)) {
+                config_load();
+            }
+            if (cfg::CONFIGURATOR_STANDALONE) {
+                reload_local_patches(true);
+            }
+        }
+    }
+
+    void apply_patches_on_start() {
+        if (!local_patches_initialized) {
+            reload_local_patches(true);
+        }
+    }
+
+    VOID CALLBACK loader_notification(
+        ULONG reason,
+        PCLDR_DLL_NOTIFICATION_DATA data,
+        PVOID) {
+
+        if (reason == LDR_DLL_NOTIFICATION_REASON_LOADED) {
+            const auto dll = strtolower(std::filesystem::path({
+                data->Loaded.FullDllName->Buffer,
+                data->Loaded.FullDllName->Length / sizeof(wchar_t)
+            }).filename().string());
+
+            if (std::ranges::find(ldr_target_libraries, dll) != ldr_target_libraries.end()) {
+                reload_local_patches(true);
+            }
+        }
+    }
+}