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Add support for GPU RGB565 (B5G6R5_UNORM) textures with DX11 #14358

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Merged
merged 3 commits into from
Oct 29, 2025
Merged

Add support for GPU RGB565 (B5G6R5_UNORM) textures with DX11 #14358

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de781c1
Add support for GPU RGB565 (B5G6R5_UNORM) textures with DX11
ZivDero Oct 29, 2025
3b8978c
Gate RGB565 behind version checks
ZivDero Oct 29, 2025
a46592e
Move the check to be later
ZivDero Oct 29, 2025
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7 changes: 7 additions & 0 deletions src/render/direct3d11/SDL_render_d3d11.c
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Original file line number Diff line number Diff line change
Expand Up @@ -292,6 +292,8 @@ static DXGI_FORMAT SDLPixelFormatToDXGITextureFormat(Uint32 format, Uint32 outpu
return DXGI_FORMAT_NV12;
case SDL_PIXELFORMAT_P010:
return DXGI_FORMAT_P010;
case SDL_PIXELFORMAT_RGB565:
return DXGI_FORMAT_B5G6R5_UNORM;
default:
return DXGI_FORMAT_UNKNOWN;
}
Expand Down Expand Up @@ -2915,6 +2917,11 @@ static bool D3D11_CreateRenderer(SDL_Renderer *renderer, SDL_Window *window, SDL
return false;
}

// DXGI_FORMAT_B5G6R5_UNORM is supported since Direct3D 11.1 on Windows 8 and later
if (data->featureLevel >= D3D_FEATURE_LEVEL_11_1 && WIN_IsWindows8OrGreater()) {
SDL_AddSupportedTextureFormat(renderer, SDL_PIXELFORMAT_RGB565);
}

return true;
}

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