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gitadora: allow a landscape monitor to display subscreen (#899)

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

## Description of change
Arena Model's SMALL touch subscreen is a portrait (800x1280) panel -
however, it's common for people to set up a touch screen in landscape
orientation since IIDX/SDVX/popn all use landscape.

Add a new option, `-gdsublandscape`, which forces the subscreen to
launch at 1080p landscape. The image is rendered with black bars on the
sides. Touches will be unaligned initially; user needs to go into test
mode and recalibrate. In reality this option is just a short hand for
`-forceressub 1920,1080`.

Wire up `-forceressub` which previously didn't work for gitadora, so
that a resolution other than 1080p can be used in either orientation. In
other games `-forceressub` just forces the rendering resolution and
IIDX/SDVX/popn's game engine automatically stretches to fill... however
for gitadora it works differently since we want to keep the aspect ratio
of the original screen; it instead hijacks the back buffer and makes the
game draw to an intermediate buffer.

## Testing
This commit is contained in:
bicarus
2026-08-29 19:09:56 -07:00
committed by GitHub
parent 67963389ef
commit 357e6c86f1
11 changed files with 344 additions and 32 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/spice2x/hooks/graphics/backends/d3d9/d3d9_backend.cpp
+8 -18
View File
@@ -1033,14 +1033,6 @@ HRESULT STDMETHODCALLTYPE WrappedIDirect3D9::CreateDeviceEx(
return D3DERR_INVALIDCALL;
}
if (gfdm_two_head_exclusive() && GRAPHICS_FS_CUSTOM_RESOLUTION_SUB.has_value()) {
log_warning(
"graphics::d3d9",
"-forceressub is unavailable; SMALL must remain {}x{}",
GFDM_SMALL_WIDTH,
GFDM_SMALL_HEIGHT);
return D3DERR_INVALIDCALL;
}
DWORD orig_behavior_flags = BehaviorFlags;
size_t num_adapters = 1;
@@ -1096,7 +1088,8 @@ HRESULT STDMETHODCALLTYPE WrappedIDirect3D9::CreateDeviceEx(
params->BackBufferHeight, params->BackBufferWidth);
std::swap(params->BackBufferWidth, params->BackBufferHeight);
}
} else if (i == 1 && GRAPHICS_FS_CUSTOM_RESOLUTION_SUB.has_value()) {
} else if (i == 1 && !gfdm_two_head_exclusive()
&& GRAPHICS_FS_CUSTOM_RESOLUTION_SUB.has_value()) {
log_misc(
"graphics::d3d9",
"use custom sub resolution {}x{} => {}x{}",
@@ -1140,7 +1133,8 @@ HRESULT STDMETHODCALLTYPE WrappedIDirect3D9::CreateDeviceEx(
} else if (GRAPHICS_FS_ORIENTATION_SWAP) {
std::swap(fullscreen_display_mode->Width, fullscreen_display_mode->Height);
}
} else if (i == 1 && GRAPHICS_FS_CUSTOM_RESOLUTION_SUB.has_value()) {
} else if (i == 1 && !gfdm_two_head_exclusive()
&& GRAPHICS_FS_CUSTOM_RESOLUTION_SUB.has_value()) {
fullscreen_display_mode->Width = GRAPHICS_FS_CUSTOM_RESOLUTION_SUB.value().first;
fullscreen_display_mode->Height = GRAPHICS_FS_CUSTOM_RESOLUTION_SUB.value().second;
}
@@ -1290,14 +1284,10 @@ HRESULT STDMETHODCALLTYPE WrappedIDirect3D9::CreateDeviceEx(
ppReturnedDeviceInterface);
if (SUCCEEDED(result) && gfdm_two_head_exclusive()) {
pPresentationParameters[0] = gfdm_parameters.presentation_parameters[0];
pPresentationParameters[gfdm_parameters.logical_small_swapchain] =
gfdm_parameters.presentation_parameters[1];
if (pFullscreenDisplayMode != nullptr) {
pFullscreenDisplayMode[0] = gfdm_parameters.fullscreen_display_modes[0];
pFullscreenDisplayMode[gfdm_parameters.logical_small_swapchain] =
gfdm_parameters.fullscreen_display_modes[1];
}
gfdm_publish_two_head_parameters(
pPresentationParameters,
pFullscreenDisplayMode,
gfdm_parameters);
}
// check for error