sdvx: fix check for enable_console in avs_config.xml (#838)

## Link to GitHub Issue or related Pull Request, if one exists
Regressed by #657 

## Description of change
Workaround for SDVX4 was applied too broadly and caused sdvx 1/2/3 to
not boot, depending on contents of avs-config.xml.

`property_search_safe` throws a fatal error if the node is not present.
What we wanted to do was to check for presence.

## Testing
sanity checked sdvx 1/2/3/4

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/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/gitadora/gitadora.cpp

@@ -11,6 +11,7 @@
 #include "hooks/audio/audio.h"
 #include "hooks/audio/mme.h"
 #include "hooks/graphics/graphics.h"
+#include "misc/wintouchemu.h"
 #include "overlay/overlay.h"
 #include "touch/native/nativetouchhook.h"
 #include "util/cpuutils.h"
@@ -653,7 +654,13 @@ namespace games::gitadora {
             // monitor/touch hooks (windowed or full screen)
             if (GRAPHICS_PREVENT_SECONDARY_WINDOWS) {
                 // enable touch hook for subscreen overlay
-                nativetouch::hook(avs::game::DLL_INSTANCE);
+                const auto native_touch_ready = !wintouchemu::FORCE &&
+                    nativetouch::hook(avs::game::DLL_INSTANCE);
+                if (!native_touch_ready) {
+                    wintouchemu::FORCE = true;
+                    wintouchemu::INJECT_MOUSE_AS_WM_TOUCH = true;
+                    wintouchemu::hook("GITADORA", avs::game::DLL_INSTANCE);
+                }
 
 #if !SPICE_XP
 

src/spice2x/games/iidx/iidx.cpp

@@ -22,6 +22,7 @@
 #include "touch/touch.h"
 #include "touch/native/nativetouchhook.h"
 #include "misc/eamuse.h"
+#include "misc/wintouchemu.h"
 #include "util/detour.h"
 #include "util/deferlog.h"
 #include "util/fileutils.h"
@@ -40,6 +41,7 @@
 #include "bi2x_hook.h"
 #include "ezusb.h"
 #include "io.h"
+#include "poke.h"
 
 static decltype(RegCloseKey) *RegCloseKey_orig = nullptr;
 static decltype(RegEnumKeyA) *RegEnumKeyA_orig = nullptr;
@@ -62,6 +64,8 @@ namespace games::iidx {
     bool TDJ_MODE = false;
     bool FORCE_720P = false;
     bool DISABLE_ESPEC_IO = false;
+    bool NATIVE_TOUCH = true;
+    bool ENABLE_POKE = false;
     std::optional<std::string> SOUND_OUTPUT_DEVICE = std::nullopt;
     std::optional<std::string> SOUND_OUTPUT_DEVICE_IN_EFFECT = std::nullopt;
     std::optional<std::string> ASIO_DRIVER = std::nullopt;
@@ -348,7 +352,16 @@ namespace games::iidx {
                 // need to hook `avs2-core.dll` so AVS win32fs operations go through rom hook
                 devicehook_init(avs::core::DLL_INSTANCE);
 
-                nativetouch::hook(avs::game::DLL_INSTANCE);
+                NATIVE_TOUCH = !wintouchemu::FORCE &&
+                    nativetouch::hook(avs::game::DLL_INSTANCE);
+                if (!NATIVE_TOUCH) {
+                    wintouchemu::FORCE = true;
+                    wintouchemu::INJECT_MOUSE_AS_WM_TOUCH = true;
+                    wintouchemu::hook_title_ends(
+                        "beatmania IIDX",
+                        "main",
+                        avs::game::DLL_INSTANCE);
+                }
             }
 
             // insert BI2X hooks
@@ -525,6 +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

@@ -28,6 +28,8 @@ namespace games::iidx {
     extern bool TDJ_MODE;
     extern bool FORCE_720P;
     extern bool DISABLE_ESPEC_IO;
+    extern bool NATIVE_TOUCH;
+    extern bool ENABLE_POKE;
     extern std::optional<std::string> SOUND_OUTPUT_DEVICE;
     extern std::optional<std::string> ASIO_DRIVER;
     extern uint8_t DIGITAL_TT_SENS;
@@ -52,6 +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/poke.cpp

@@ -4,6 +4,7 @@
 
 #include "windows.h"
 #include "games/io.h"
+#include "games/iidx/iidx.h"
 #include "hooks/graphics/graphics.h"
 #include "launcher/shutdown.h"
 #include "misc/eamuse.h"
@@ -116,6 +117,11 @@ namespace games::iidx::poke {
         if (THREAD)
             return;
 
+        if (!games::iidx::NATIVE_TOUCH) {
+            log_warning("poke", "keypad touch emulation requires native touch; disabled");
+            return;
+        }
+
         // create new thread
         THREAD_RUNNING = true;
         THREAD = new std::thread([] {

src/spice2x/games/nost/nost.cpp

@@ -2,6 +2,7 @@
 #include "poke.h"
 #include "touch_mode.h"
 #include "hooks/setupapihook.h"
+#include "misc/wintouchemu.h"
 #include "touch/native/nativetouchhook.h"
 #include "avs/game.h"
 
@@ -41,9 +42,15 @@ namespace games::nost {
         setupapihook_init(avs::game::DLL_INSTANCE);
         setupapihook_add(touch_settings);
 
-        nativetouch::hook(avs::game::DLL_INSTANCE);
+        const auto native_touch_ready = !wintouchemu::FORCE &&
-        if (ENABLE_TOUCH_MODE) {
+            nativetouch::hook(avs::game::DLL_INSTANCE);
-            touch_mode::enable();
+        if (!native_touch_ready) {
+            wintouchemu::FORCE = true;
+            wintouchemu::hook("nostalgia", avs::game::DLL_INSTANCE, 20);
+        } else {
+            if (ENABLE_TOUCH_MODE) {
+                touch_mode::enable();
+            }
         }
     }
 

src/spice2x/games/nost/poke.cpp

@@ -9,6 +9,7 @@
 #include "rawinput/rawinput.h"
 #include "misc/eamuse.h"
 #include "touch/native/inject.h"
+#include "touch/native/nativetouchhook.h"
 #include "util/logging.h"
 #include "util/precise_timer.h"
 
@@ -59,6 +60,11 @@ 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([] {

src/spice2x/games/popn/popn.cpp

@@ -16,6 +16,7 @@
 #include "launcher/launcher.h"
 #include "launcher/logger.h"
 #include "misc/eamuse.h"
+#include "misc/wintouchemu.h"
 #include "util/sysutils.h"
 #include "io.h"
 #include "util/deferlog.h"
@@ -24,6 +25,7 @@
 namespace games::popn {
 
     bool SHOW_PIKA_MONITOR_WARNING = false;
+    bool NATIVE_TOUCH = true;
     
 #if SPICE64 && !SPICE_XP
 
@@ -713,7 +715,18 @@ namespace games::popn {
         //       00000100 0000000B 00000001  (button 9)
         //       set third column to 0 and it will work with BIO2
         
-        nativetouch::hook(avs::game::DLL_INSTANCE);
+        NATIVE_TOUCH = !wintouchemu::FORCE &&
+            nativetouch::hook(avs::game::DLL_INSTANCE);
+        if (!NATIVE_TOUCH) {
+            wintouchemu::FORCE = true;
+            if (!GRAPHICS_WINDOWED || GRAPHICS_PREVENT_SECONDARY_WINDOWS) {
+                wintouchemu::INJECT_MOUSE_AS_WM_TOUCH = true;
+                wintouchemu::hook_title_ends(
+                    "",
+                    "Main Screen",
+                    avs::game::DLL_INSTANCE);
+            }
+        }
 
         sysutils::hook_EnumDisplayDevicesA();
 

src/spice2x/games/popn/popn.h

@@ -22,6 +22,7 @@ namespace games::popn {
 #endif
 
     extern bool SHOW_PIKA_MONITOR_WARNING;
+    extern bool NATIVE_TOUCH;
 
     class POPNGame : public games::Game {
     public:

src/spice2x/games/sdvx/sdvx.cpp

@@ -26,6 +26,7 @@
 #include "util/libutils.h"
 #include "util/sysutils.h"
 #include "misc/eamuse.h"
+#include "misc/wintouchemu.h"
 #include "touch/native/nativetouchhook.h"
 #include "bi2x_hook.h"
 #include "camera.h"
@@ -453,7 +454,18 @@ namespace games::sdvx {
             }
 
             if (is_valkyrie_model()) {
-                nativetouch::hook(avs::game::DLL_INSTANCE);
+                const auto native_touch_ready = !wintouchemu::FORCE &&
+                    nativetouch::hook(avs::game::DLL_INSTANCE);
+                if (!native_touch_ready) {
+                    wintouchemu::FORCE = true;
+                    if (!GRAPHICS_WINDOWED) {
+                        wintouchemu::INJECT_MOUSE_AS_WM_TOUCH = true;
+                        wintouchemu::hook_title_ends(
+                            "SOUND VOLTEX",
+                            "Main Screen",
+                            avs::game::DLL_INSTANCE);
+                    }
+                }
 
                 // insert BI2X hooks
                 bi2x_hook_init();

src/spice2x/hooks/graphics/graphics.cpp

@@ -28,6 +28,7 @@
 #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"
@@ -307,6 +308,22 @@ static LRESULT CALLBACK WindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM l
         }
     }
 
+    if (wintouchemu::INJECT_MOUSE_AS_WM_TOUCH) {
+        // drop mouse inputs since only wintouches should be used
+        switch (uMsg) {
+            case WM_MOUSEMOVE:
+            case WM_LBUTTONDOWN:
+            case WM_LBUTTONUP:
+            case WM_MBUTTONDOWN:
+            case WM_MBUTTONUP:
+            case WM_RBUTTONDOWN:
+            case WM_RBUTTONUP:
+            case WM_XBUTTONDOWN:
+            case WM_XBUTTONUP:
+                return true;
+        }
+    }
+
     // window resize
     graphics_windowed_wndproc(hWnd, uMsg, wParam, lParam);
 
@@ -786,7 +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;
 
-            nativetouch::inject::register_and_attach_window(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(
@@ -1160,8 +1181,9 @@ void graphics_hook_window(HWND hWnd, D3DPRESENT_PARAMETERS *pPresentationParamet
         SetWindowLongPtrA(hWnd, GWLP_WNDPROC, reinterpret_cast<LONG_PTR>(WindowProc));
 
         const bool native_touch_overlay =
-            (games::iidx::TDJ_MODE && !GRAPHICS_IIDX_WSUB) ||
+            (games::iidx::NATIVE_TOUCH && games::iidx::TDJ_MODE && !GRAPHICS_IIDX_WSUB) ||
-            (games::popn::is_pikapika_model() && GRAPHICS_PREVENT_SECONDARY_WINDOWS);
+            (games::popn::NATIVE_TOUCH &&
+             games::popn::is_pikapika_model() && GRAPHICS_PREVENT_SECONDARY_WINDOWS);
         if (native_touch_overlay) {
             nativetouch::inject::register_and_attach_window(hWnd);
         }

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"
@@ -1783,7 +1783,7 @@ 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;

src/spice2x/launcher/options.cpp

@@ -1791,10 +1791,10 @@ static const std::vector<OptionDefinition> OPTION_DEFINITIONS = {
         .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",
     },

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
+        // dump memory information before inspecting potentially damaged exception and stack data
-        struct _EXCEPTION_RECORD *record_cause = ExceptionRecord->ExceptionRecord;
+        memutils::show_available_memory();
-        while (record_cause != nullptr) {
+
-            log_warning("signal", "caused by: {}", exception_code(record_cause));
+        // walk the exception chain with bounded, checked reads
-            record_cause = record_cause->ExceptionRecord;
+        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/wintouchemu.cpp

@@ -4,19 +4,44 @@
 
 #include "wintouchemu.h"
 
+#include <chrono>
+#include <algorithm>
+#include <optional>
+#include <thread>
+
+#include "cfg/screen_resize.h"
+#include "games/gitadora/gitadora.h"
+#include "games/iidx/iidx.h"
+#include "games/popn/popn.h"
 #include "hooks/graphics/graphics.h"
 #include "overlay/overlay.h"
+#include "overlay/windows/generic_sub.h"
 #include "touch/touch.h"
 #include "util/detour.h"
 #include "util/logging.h"
+#include "util/time.h"
 #include "util/utils.h"
+#include "rawinput/touch.h"
+
+#include "avs/game.h"
 
 namespace wintouchemu {
 
+    typedef struct {
+        POINT pos;
+        bool last_button_pressed;
+        DWORD touch_event;
+    } mouse_state_t;
+
     // settings
     bool FORCE = false;
+    bool INJECT_MOUSE_AS_WM_TOUCH = false;
+    bool LOG_FPS = false;
     bool ADD_TOUCH_FLAG_PRIMARY = false;
     
+    // state
+    double last_touch_event = 0.0;
+
     static inline bool is_emu_enabled() {
         return FORCE || !is_touch_available("wintouchemu::is_emu_enabled") || GRAPHICS_SHOW_CURSOR;
     }
@@ -56,13 +81,16 @@ namespace wintouchemu {
 
     // state
     BOOL (WINAPI *GetTouchInputInfo_orig)(HANDLE, UINT, PTOUCHINPUT, int);
+    bool USE_MOUSE = false;
     std::vector<TouchEvent> TOUCH_EVENTS;
     std::vector<TouchPoint> TOUCH_POINTS;
     HMODULE HOOKED_MODULE = nullptr;
     std::string WINDOW_TITLE_START = "";
-    bool INITIALIZED = false;
+    std::optional<std::string> WINDOW_TITLE_END = std::nullopt;
+    volatile bool INITIALIZED = false;
+    mouse_state_t mouse_state;
 
-    void hook(const char *window_title, HMODULE module) {
+    void hook(const char *window_title, HMODULE module, int delay_in_s) {
 
         // hooks
         auto system_metrics_hook = detour::iat_try(
@@ -81,8 +109,31 @@ namespace wintouchemu {
         // set module and title
         HOOKED_MODULE = module;
         WINDOW_TITLE_START = window_title;
-        log_misc("wintouchemu", "initializing");
+
-        INITIALIZED = true;
+        if (0 < delay_in_s) {
+            // some games crash when touch events are injected too early during boot
+            std::thread t([&]() {
+                log_misc("wintouchemu", "defer initialization until later (with delay of {}s)", delay_in_s);
+                std::this_thread::sleep_for(std::chrono::seconds(delay_in_s));
+                log_misc("wintouchemu", "initializing", delay_in_s);
+                INITIALIZED = true;
+            });
+            t.detach();
+        } else {
+            log_misc("wintouchemu", "initializing");
+            INITIALIZED = true;
+        }
+    }
+
+    void hook_title_ends(const char *window_title_start, const char *window_title_end, HMODULE module) {
+        hook(window_title_start, module);
+
+        WINDOW_TITLE_END = window_title_end;
+    }
+
+    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(HANDLE hTouchInput, UINT cInputs, PTOUCHINPUT pInputs, int cbSize) {
@@ -94,6 +145,7 @@ namespace wintouchemu {
 
         // set touch inputs
         bool result = false;
+        bool mouse_used = false;
         for (UINT input = 0; input < cInputs; input++) {
             auto *touch_input = &pInputs[input];
 
@@ -126,7 +178,13 @@ namespace wintouchemu {
 
                 // log_misc("wintouchemu", "touch event ({}, {})", to_string(x), to_string(y));
 
-                if (overlay::OVERLAY) {
+                if (GRAPHICS_IIDX_WSUB) {
+                    // touch was received on subscreen window.
+                    RECT clientRect {};
+                    GetClientRect(TDJ_SUBSCREEN_WINDOW, &clientRect);
+                    x = (float) x / clientRect.right * SPICETOUCH_TOUCH_WIDTH + SPICETOUCH_TOUCH_X;
+                    y = (float) y / clientRect.bottom * SPICETOUCH_TOUCH_HEIGHT + SPICETOUCH_TOUCH_Y;
+                } else if (overlay::OVERLAY) {
                     // touch was received on global coords
                     valid = overlay::OVERLAY->transform_touch_point(&x, &y);
                 } else {
@@ -172,10 +230,89 @@ namespace wintouchemu {
                 touch_input->cxContact = 0;
                 touch_input->cyContact = 0;
 
-            } else {
+                if (avs::game::is_model("KFC") &&
+                    rawinput::touch::DISPLAY_INITIALIZED &&
+                    rawinput::touch::DISPLAY_ORIENTATION == DMDO_270) {
+                    flip_touch_points(touch_input);
+                }
+
+            } else if (USE_MOUSE && !mouse_used) {
+
+                // disable further mouse inputs this call
+                mouse_used = true;
+
+                if (mouse_state.touch_event) {
+                    result = true;
+                    touch_input->x = mouse_state.pos.x;
+                    touch_input->y = mouse_state.pos.y;
+
+                    if (GRAPHICS_WINDOWED) {
+                        touch_input->x -= SPICETOUCH_TOUCH_X;
+                        touch_input->y -= SPICETOUCH_TOUCH_Y;
+                    }
+
+                    // log_misc(
+                    //     "wintouchemu",
+                    //     "mouse state ({}, {}) event={}",
+                    //     to_string(touch_input->x), to_string(touch_input->y), mouse_state.touch_event);
+
+                    auto valid = true;
+                    if (overlay::OVERLAY) {
+                        valid = overlay::OVERLAY->transform_touch_point(
+                            &touch_input->x, &touch_input->y);
+                    }
+
+                    // touch inputs require 100x precision per pixel
+                    touch_input->x *= 100;
+                    touch_input->y *= 100;
+                    touch_input->hSource = hTouchInput;
+                    touch_input->dwID = 0;
+                    touch_input->dwFlags = 0;
+                    switch (mouse_state.touch_event) {
+                        case TOUCHEVENTF_DOWN:
+                            if (valid) {
+                                if (ADD_TOUCH_FLAG_PRIMARY) {
+                                    touch_input->dwFlags |= TOUCHEVENTF_PRIMARY;
+                                }
+
+                                touch_input->dwFlags |= TOUCHEVENTF_DOWN;
+                            }
+                            break;
+                        case TOUCHEVENTF_MOVE:
+                            if (valid) {
+                                if (ADD_TOUCH_FLAG_PRIMARY) {
+                                    touch_input->dwFlags |= TOUCHEVENTF_PRIMARY;
+                                }
+
+                                touch_input->dwFlags |= TOUCHEVENTF_MOVE;
+                            }
+                            break;
+                        case TOUCHEVENTF_UP:
+                            // don't check valid so that this touch ID can be released
+                            if (ADD_TOUCH_FLAG_PRIMARY) {
+                                touch_input->dwFlags |= TOUCHEVENTF_PRIMARY;
+                            }
+
+                            touch_input->dwFlags |= TOUCHEVENTF_UP;
+                            break;
+                    }
+                    touch_input->dwMask = 0;
+                    touch_input->dwTime = 0;
+                    touch_input->dwExtraInfo = 0;
+                    touch_input->cxContact = 0;
+                    touch_input->cyContact = 0;
+
+                    // reset it since the event was consumed & propagated as touch
+                    mouse_state.touch_event = 0;
+                }
+            } else if (!GRAPHICS_IIDX_WSUB) {
+
+                /*
+                 * For some reason, Nostalgia won't show an active touch point unless a move event
+                 * triggers in the same frame. To work around this, we just supply a fake move
+                 * event if we didn't update the same pointer ID in the same call.
+                 */
 
-                // beatstream requires a MOVE for active points in each update
-                // add one for every active point without a matching input event
                 // find touch point which has no associated input event
                 TouchPoint *touch_point = nullptr;
                 for (auto &tp : TOUCH_POINTS) {
@@ -243,6 +380,21 @@ namespace wintouchemu {
                 title = get_window_title(hWnd);
             }
 
+            // if a window title end is set, check to see if it matches
+            if (WINDOW_TITLE_END.has_value() && !string_ends_with(title.c_str(), WINDOW_TITLE_END.value().c_str())) {
+                hWnd = nullptr;
+                title = "";
+
+                for (auto &window : find_windows_beginning_with(WINDOW_TITLE_START)) {
+                    auto check_title = get_window_title(window);
+                    if (string_ends_with(check_title.c_str(), WINDOW_TITLE_END.value().c_str())) {
+                        hWnd = std::move(window);
+                        title = std::move(check_title);
+                        break;
+                    }
+                }
+            }
+
             // check window
             if (hWnd == nullptr) {
                 return;
@@ -250,13 +402,39 @@ namespace wintouchemu {
 
             // check if windowed
             if (GRAPHICS_WINDOWED) {
-                // create touch window - create overlay if not yet existing at this point
+                if (GRAPHICS_IIDX_WSUB) {
-                log_info("wintouchemu", "create touch window relative to main game window");
+                    // no handling is needed here
-                touch_create_wnd(hWnd, overlay::ENABLED && !overlay::OVERLAY);
+                    // graphics::MoveWindow_hook will attach hook to windowed subscreen
+                    log_info("wintouchemu", "attach touch hook to windowed subscreen for TDJ");
+                    USE_MOUSE = false;
+                } else if (avs::game::is_model("LDJ") && !GENERIC_SUB_WINDOW_FULLSIZE) {
+                    // overlay subscreen in IIDX
+                    // use mouse position as ImGui overlay will block the touch window  
+                    log_info("wintouchemu", "use mouse cursor API for ldj overlay subscreen");
+                    USE_MOUSE = true;
+                } else if (games::popn::is_pikapika_model()) {
+                    // same as iidx case above
+                    log_info("wintouchemu", "use mouse cursor API for popn overlay subscreen");
+                    USE_MOUSE = true;
+                } else if (games::gitadora::is_arena_model() && GRAPHICS_PREVENT_SECONDARY_WINDOWS) {
+                    log_info("wintouchemu", "use mouse cursor API for gitadora overlay subscreen");
+                    USE_MOUSE = true;
+                } else {
+                    // create touch window - create overlay if not yet existing at this point
+                    log_info("wintouchemu", "create touch window relative to main game window");
+                    touch_create_wnd(hWnd, overlay::ENABLED && !overlay::OVERLAY);
+                    USE_MOUSE = false;
+                }
+            } else if (INJECT_MOUSE_AS_WM_TOUCH) {
+                log_info(
+                    "wintouchemu",
+                    "using raw mouse cursor API in full screen and injecting them as WM_TOUCH events");
+                USE_MOUSE = true;
             } else {
                 log_info("wintouchemu", "activating DirectX hooks");
                 // mouse position based input only
                 touch_attach_dx_hook();
+                USE_MOUSE = false;
             }
 
             // hooks
@@ -267,6 +445,8 @@ namespace wintouchemu {
             }
         }
 
+        const auto now = get_performance_milliseconds();
+
         // update touch events
         if (hWnd != nullptr) {
 
@@ -286,11 +466,56 @@ namespace wintouchemu {
 
             // check if new events are available
             if (event_count > 0) {
+                last_touch_event = now;
+
                 // send fake event to make the game update it's touch inputs
                 auto wndProc = (WNDPROC) GetWindowLongPtr(hWnd, GWLP_WNDPROC);
                 wndProc(hWnd, WM_TOUCH, MAKEWORD(event_count, 0), (LPARAM) GetTouchInputInfoHook);
             }
 
+            // update frame logging
+            if (LOG_FPS) {
+                static int log_frames = 0;
+                static uint64_t log_time = 0;
+                log_frames++;
+                if (log_time < get_system_seconds()) {
+                    if (log_time > 0) {
+                        log_info("wintouchemu", "polling at {} touch frames per second", log_frames);
+                    }
+                    log_frames = 0;
+                    log_time = get_system_seconds();
+                }
+            }
+        }
+
+        // send separate WM_TOUCH event for mouse
+        // this must be separate from actual touch events because some games will ignore the return
+        // value from GetTouchInputInfo or fail to read dwFlags for valid events, so it's not OK to
+        // send empty events when the mouse button is not clicked/released
+        if (hWnd != nullptr && USE_MOUSE) {
+            bool button_pressed = get_async_primary_mouse();
+
+            // 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;
+            }
+
+            // figure out what kind of touch event to simulate
+            if (button_pressed && !mouse_state.last_button_pressed) {
+                mouse_state.touch_event = TOUCHEVENTF_DOWN;
+            } else if (button_pressed && mouse_state.last_button_pressed) {
+                mouse_state.touch_event = TOUCHEVENTF_MOVE;
+            } else if (!button_pressed && mouse_state.last_button_pressed) {
+                mouse_state.touch_event = TOUCHEVENTF_UP;
+            }
+
+            mouse_state.last_button_pressed = button_pressed;
+            if (mouse_state.touch_event) {
+                GetCursorPos(&mouse_state.pos);
+                // send fake event to make the game update it's touch inputs
+                auto wndProc = (WNDPROC) GetWindowLongPtr(hWnd, GWLP_WNDPROC);
+                wndProc(hWnd, WM_TOUCH, MAKEWORD(1, 0), (LPARAM) GetTouchInputInfoHook);
+            }
         }
     }
 }

src/spice2x/misc/wintouchemu.h

@@ -6,8 +6,14 @@ namespace wintouchemu {
 
     // settings
     extern bool FORCE;
+    extern bool INJECT_MOUSE_AS_WM_TOUCH;
+    extern bool LOG_FPS;
     extern bool ADD_TOUCH_FLAG_PRIMARY;
 
-    void hook(const char *window_title, HMODULE module = nullptr);
+    void hook(const char *window_title, HMODULE module = nullptr, int delay_in_s=0);
+    void hook_title_ends(
+        const char *window_title_start,
+        const char *window_title_ends,
+        HMODULE module = nullptr);
     void update();
 }

src/spice2x/touch/native/inject.cpp

@@ -338,9 +338,7 @@ namespace nativetouch::inject {
 
     // attach mouse injection without replacing the window's existing procedure
     static void attach_window_impl(HWND window, bool register_touch) {
-        initialize_touch_injection();
+        if (!initialize_touch_injection()) {
-
-        if (!touch_injection_available()) {
             if (register_touch) {
                 log_warning(
                     "touch::native",
@@ -422,7 +420,7 @@ namespace nativetouch::inject {
     }
 
     // load and initialize Windows 8 touch injection without a static API dependency
-    void initialize_touch_injection() {
+    bool initialize_touch_injection() {
         std::call_once(initialization_once, [] {
             initialize_synthetic_touch();
             contact_refresh_message =
@@ -433,17 +431,26 @@ namespace nativetouch::inject {
             }
 
             // load all APIs from user32 without adding static imports
+            //
+            // note that these are expected to be present in Windows 8 and above;
+            // however, on WINE, touch implementation remains in Windows 7 era
+            // and therefore the hooks below will fail, hence the fallback to
+            // legacy wintouchemu code
             const auto user32 = libutils::load_library("user32.dll");
             InitializeTouchInjection_ptr = libutils::try_proc<decltype(InitializeTouchInjection_ptr)>(
                 user32, "InitializeTouchInjection");
+            if (InitializeTouchInjection_ptr == nullptr) {
+                log_warning(
+                    "touch::native", "InitializeTouchInjection unavailable; mouse touch injection disabled");
+                return;
+            }
+
             InjectTouchInput_ptr = libutils::try_proc<decltype(InjectTouchInput_ptr)>(
                 user32, "InjectTouchInput");
-
+            if (InjectTouchInput_ptr == nullptr) {
-            if (InitializeTouchInjection_ptr == nullptr ||
-                InjectTouchInput_ptr == nullptr) {
                 clear_touch_injection_functions();
                 log_warning(
-                    "touch::native", "touch injection API unavailable; mouse touch injection disabled");
+                    "touch::native", "InjectTouchInput unavailable; mouse touch injection disabled");
                 return;
             }
 
@@ -457,20 +464,31 @@ namespace nativetouch::inject {
 
             log_misc("touch::native", "mouse touch injection initialized");
         });
-    }
+        return InitializeTouchInjection_ptr != nullptr && InjectTouchInput_ptr != nullptr;
-
-    bool touch_injection_available() {
-        return InjectTouchInput_ptr != nullptr;
     }
 
     // install injection support for touch windows registered by the game module
-    void hook(HMODULE module) {
+    bool hook_available(HMODULE module) {
-        initialize_touch_injection();
+        if (detour::iat_find("RegisterTouchWindow", module) == nullptr) {
+            log_warning("touch::native", "RegisterTouchWindow unavailable");
+            return false;
+        }
+        return true;
+    }
+
+    bool hook(HMODULE module) {
+        if (!initialize_touch_injection()) {
+            return false;
+        }
 
         RegisterTouchWindow_orig = detour::iat_try(
             "RegisterTouchWindow", RegisterTouchWindowHook, module);
-        if (RegisterTouchWindow_orig != nullptr) {
+        if (RegisterTouchWindow_orig == nullptr) {
-            log_misc("touch::native", "RegisterTouchWindow hooked");
+            log_warning("touch::native", "failed to hook RegisterTouchWindow");
+            return false;
         }
+
+        log_misc("touch::native", "RegisterTouchWindow hooked");
+        return true;
     }
 }

src/spice2x/touch/native/inject.h

@@ -7,7 +7,8 @@ struct tagTOUCHINPUT;
 namespace nativetouch::inject {
     void attach_window(HWND window);
     void register_and_attach_window(HWND window);
-    void hook(HMODULE module);
+    bool hook_available(HMODULE module);
+    bool hook(HMODULE module);
     bool inject_synthetic_touch(POINT position, bool down);
     bool inject_synthetic_touch_from_canvas(POINT position, SIZE canvas, bool down);
     bool transform_touch_input(tagTOUCHINPUT *point);

src/spice2x/touch/native/inject_internal.h

@@ -10,9 +10,8 @@ namespace nativetouch::inject {
         Synthetic,
     };
 
-    void initialize_touch_injection();
+    bool initialize_touch_injection();
     void initialize_synthetic_touch();
-    bool touch_injection_available();
     void refresh_contact_lifetime();
 
     bool contact_is_active();

src/spice2x/touch/native/inject_synthetic.cpp

@@ -113,11 +113,12 @@ namespace nativetouch::inject {
     }
 
     static HWND prepare_synthetic_touch() {
-        initialize_touch_injection();
+        if (!initialize_touch_injection()) {
+            return nullptr;
+        }
 
         const auto window = get_injection_window();
-        if (!touch_injection_available() || window == nullptr ||
+        if (window == nullptr || synthetic_touch_message == 0) {
-            synthetic_touch_message == 0) {
             return nullptr;
         }
         return window;

src/spice2x/touch/native/nativetouchhook.cpp

@@ -223,25 +223,58 @@ namespace nativetouch {
         }
     }
 
-    void hook(HMODULE module) {
+    static bool hook_prerequisites_available(HMODULE module) {
+        if (detour::iat_find("GetTouchInputInfo", module) == nullptr) {
+            log_warning("touch::native", "GetTouchInputInfo unavailable");
+            return false;
+        }
+        if (settings::EMULATE_DIGITIZER &&
+            detour::iat_find("GetSystemMetrics", module) == nullptr) {
+            log_warning("touch::native", "GetSystemMetrics unavailable");
+            return false;
+        }
+        return true;
+    }
+
+    bool hook(HMODULE module) {
+        native_touch_hooked = false;
         initialize_game_settings();
 
-        inject::hook(module);
+        // check if the OS supports touch API (Win7+) and injection API (requires Win8+)
+        if (!hook_prerequisites_available(module)) {
+            return false;
+        }
+        if (!inject::hook_available(module)) {
+            return false;
+        }
 
-        native_touch_hooked = true;
+        // try hooking injection API first since they require the highest OS level
+        // (WINE specifically did not implement this in 2026)
+        if (!inject::hook(module)) {
+            return false;
+        }
 
+        // GetSystemMetrics
         if (settings::EMULATE_DIGITIZER) {
             GetSystemMetrics_orig = detour::iat_try(
                 "GetSystemMetrics", GetSystemMetricsHook, module);
-            if (GetSystemMetrics_orig != nullptr) {
+            if (GetSystemMetrics_orig == nullptr) {
-                log_misc("touch::native", "GetSystemMetrics hooked");
+                log_warning("touch::native", "failed to hook GetSystemMetrics");
+                return false;
             }
+            log_misc("touch::native", "GetSystemMetrics hooked");
         }
 
+        // GetTouchInputInfo
         GetTouchInputInfo_orig = detour::iat_try("GetTouchInputInfo", GetTouchInputInfoHook, module);
-        if (GetTouchInputInfo_orig != nullptr) {
+        if (GetTouchInputInfo_orig == nullptr) {
-            log_misc("touch::native", "GetTouchInputInfo hooked");
+            log_warning("touch::native", "failed to hook GetTouchInputInfo");
+            return false;
         }
+        log_misc("touch::native", "GetTouchInputInfo hooked");
+        
+        native_touch_hooked = true;
+        return true;
     }
 
 }

src/spice2x/touch/native/nativetouchhook.h

@@ -15,7 +15,7 @@ namespace nativetouch {
 
     using TouchInputFilter = bool (*)(const NativeTouchEvent &event);
 
-    void hook(HMODULE module);
+    bool hook(HMODULE module);
     void refresh_contact_lifetime();
     void set_input_filter(TouchInputFilter filter);