gitadora: fix synthetic touch (mouse and api) (#867)

## Link to GitHub Issue or related Pull Request, if one exists
#0

## Description of change
Fix mouse and touch API handling for gitadora.

* hook native touch in every arena window mode (previously only using
wintouchemu for 1 windowed mode)
* publish the touch window (SMALL panel, or the main window drawing the
overlay) and only attach injection there
* route touch on the SMALL window straight through instead of the
overlay transform, and accept the mouse only there
* fix spiceapi by forcing 800x1280 touch canvas size
* run API capture before the subscreen present to fix api not showing
sub image


## Testing
Test:

gitadora 1/2/4 windowed mode, fullscreen

iidx /sdvx / popn windowed/fullscreen for regressions

src/spice2x/hooks/graphics/backends/d3d9/d3d9_backend.cpp

@@ -1520,6 +1520,10 @@ void graphics_d3d9_on_present(
         graphics_d3d9_process_screenshot(device, wrapped_device);
     }
 
+    // API capture always includes the overlay; it must run before the subscreen present
+    // below, which leaves the arena SMALL back buffer black
+    graphics_d3d9_process_capture(device, wrapped_device);
+
     // for IIDX TDJ / SDVX UFC, handle subscreen
     const bool is_vm = games::sdvx::is_valkyrie_model();
     const bool is_tdj = avs::game::is_model("LDJ") && games::iidx::TDJ_MODE;
@@ -1533,9 +1537,6 @@ void graphics_d3d9_on_present(
     if (is_mfc) {
         wintouchemu::update();
     }
-
-    // API capture always includes the overlay
-    graphics_d3d9_process_capture(device, wrapped_device);
 }
 
 void update_backbuffer_dimensions(D3DPRESENT_PARAMETERS *params) {

src/spice2x/hooks/graphics/backends/d3d9/d3d9_gfdm.h

@@ -4,10 +4,12 @@
 
 #include <d3d9.h>
 
+#include "games/gitadora/gitadora.h"
+
 inline constexpr UINT GFDM_SIDE_WIDTH = 1080;
 inline constexpr UINT GFDM_SIDE_HEIGHT = 1920;
-inline constexpr UINT GFDM_SMALL_WIDTH = 800;
-inline constexpr UINT GFDM_SMALL_HEIGHT = 1280;
+inline constexpr UINT GFDM_SMALL_WIDTH = games::gitadora::ARENA_SUBSCREEN_WIDTH;
+inline constexpr UINT GFDM_SMALL_HEIGHT = games::gitadora::ARENA_SUBSCREEN_HEIGHT;
 inline constexpr UINT GFDM_LOGICAL_HEAD_COUNT = 4;
 inline constexpr UINT GFDM_NATIVE_SMALL_SWAPCHAIN = 1;
 

src/spice2x/hooks/graphics/graphics.cpp

@@ -33,6 +33,7 @@
 #include "util/utils.h"
 #include "misc/wintouchemu.h"
 #include "touch/native/inject.h"
+#include "touch/native/nativetouchhook.h"
 #include "util/time.h"
 #include "rawinput/rawinput.h"
 
@@ -216,6 +217,18 @@ static void gitadora_remember_window(HWND hWnd, const std::string &window_name)
     } else if (window_name == "SMALL") {
         GFDM_SUBSCREEN_WINDOW = hWnd;
     }
+
+    // touch belongs to the SMALL panel when it exists, otherwise to the main window
+    // that draws the subscreen overlay
+    const bool hosts_touch = window_name == "SMALL" ||
+        (window_name == "GITADORA" && !graphics_gitadora_has_dedicated_subscreen());
+    if (nativetouch::is_hooked() && hWnd != nullptr && hosts_touch) {
+        nativetouch::inject::set_preferred_injection_window(hWnd);
+    }
+}
+
+bool graphics_gitadora_has_dedicated_subscreen() {
+    return GFDM_SUBSCREEN_WINDOW != nullptr;
 }
 
 bool graphics_gitadora_prepare_two_head_device_window(
@@ -731,6 +744,11 @@ static HWND WINAPI CreateWindowExA_hook(DWORD dwExStyle, LPCSTR lpClassName, LPC
         if (GRAPHICS_WINDOWED && !GRAPHICS_PREVENT_SECONDARY_WINDOWS) {
             graphics_hook_subscreen_window(GFDM_SUBSCREEN_WINDOW);
         }
+
+        // the dedicated SMALL window is the touch panel; mouse and API touch target it
+        if (nativetouch::is_hooked() && result != nullptr) {
+            nativetouch::inject::register_and_attach_window(result);
+        }
     }
     if (is_gfdm_window && GRAPHICS_WINDOWED && !GRAPHICS_PREVENT_SECONDARY_WINDOWS) {
         gitadora_force_window_style(result);
@@ -1320,7 +1338,9 @@ void graphics_hook_window(HWND hWnd, D3DPRESENT_PARAMETERS *pPresentationParamet
         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);
+             games::popn::is_pikapika_model() && GRAPHICS_PREVENT_SECONDARY_WINDOWS) ||
+            (games::gitadora::NATIVE_TOUCH &&
+             games::gitadora::is_arena_model() && GRAPHICS_PREVENT_SECONDARY_WINDOWS);
         if (native_touch_overlay) {
             nativetouch::inject::register_and_attach_window(hWnd);
         }

src/spice2x/hooks/graphics/graphics.h

@@ -121,6 +121,7 @@ extern bool D3D9_DEVICE_HOOK_DISABLE;
 
 void graphics_init();
 void graphics_hook_window(HWND hWnd, D3DPRESENT_PARAMETERS *pPresentationParameters);
+bool graphics_gitadora_has_dedicated_subscreen();
 // The native GITADORA two-head D3D9 group uses the game's named SMALL
 // device window for the native physical SMALL head. The game requests
 // D3DCREATE_NOWINDOWCHANGES, so this host must be made borderless and sized