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rendervulkan: Add Anime4K 2x CNN UL upscaling filter #2072

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rendervulkan: Add Anime4K 2x CNN UL upscaling filter #2072

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26dbce7
rendervulkan: Add Anime4K 2x CNN UL upscaling filter
Et3rnos Jan 31, 2026
489f5c0
backends: Add Anime4K filter to full composite checks
Et3rnos Jan 31, 2026
7024283
rendervulkan: Fix descriptor pool size for Anime4K storage images
Et3rnos Feb 8, 2026
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1 change: 1 addition & 0 deletions src/Backends/DRMBackend.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -3461,6 +3461,7 @@ namespace gamescope
bNeedsFullComposite |= bWasFirstFrame;
bNeedsFullComposite |= pFrameInfo->useFSRLayer0;
bNeedsFullComposite |= pFrameInfo->useNISLayer0;
bNeedsFullComposite |= pFrameInfo->useAnime4k2xCnnULLayer0;
bNeedsFullComposite |= pFrameInfo->blurLayer0;
bNeedsFullComposite |= bNeedsCompositeFromFilter;
bNeedsFullComposite |= !k_bUseCursorPlane && bDrewCursor;
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1 change: 1 addition & 0 deletions src/Backends/OpenVRBackend.cpp
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Expand Up @@ -1570,6 +1570,7 @@ namespace gamescope
bNeedsFullComposite |= cv_composite_force;
bNeedsFullComposite |= pFrameInfo->useFSRLayer0;
bNeedsFullComposite |= pFrameInfo->useNISLayer0;
bNeedsFullComposite |= pFrameInfo->useAnime4k2xCnnULLayer0;
bNeedsFullComposite |= pFrameInfo->blurLayer0;
bNeedsFullComposite |= bNeedsCompositeFromFilter;
bNeedsFullComposite |= g_bColorSliderInUse;
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1 change: 1 addition & 0 deletions src/Backends/WaylandBackend.cpp
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Expand Up @@ -1062,6 +1062,7 @@ namespace gamescope
bNeedsFullComposite |= cv_composite_force;
bNeedsFullComposite |= pFrameInfo->useFSRLayer0;
bNeedsFullComposite |= pFrameInfo->useNISLayer0;
bNeedsFullComposite |= pFrameInfo->useAnime4k2xCnnULLayer0;
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Copilot AI Jan 31, 2026

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Missing integration in DRMBackend and OpenVRBackend. The useAnime4k2xCnnULLayer0 flag is checked in WaylandBackend to determine if full composite is needed, but the same check is missing in DRMBackend.cpp and OpenVRBackend.cpp. These backends also check useFSRLayer0 and useNISLayer0 in their bNeedsFullComposite logic (see DRMBackend.cpp:3462-3463 and OpenVRBackend.cpp:1571-1572), so they should similarly check useAnime4k2xCnnULLayer0. Without this, the anime4k filter may not work correctly on DRM and OpenVR backends.

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bNeedsFullComposite |= pFrameInfo->blurLayer0;
bNeedsFullComposite |= bNeedsCompositeFromFilter;
bNeedsFullComposite |= g_bColorSliderInUse;
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5 changes: 4 additions & 1 deletion src/main.cpp
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Expand Up @@ -172,9 +172,10 @@ const char usage[] =
" -r, --nested-refresh game refresh rate (frames per second)\n"
" -m, --max-scale maximum scale factor\n"
" -S, --scaler upscaler type (auto, integer, fit, fill, stretch)\n"
" -F, --filter upscaler filter (linear, nearest, fsr, nis, pixel)\n"
" -F, --filter upscaler filter (linear, nearest, fsr, nis, pixel, anime4k)\n"
" fsr => AMD FidelityFX™ Super Resolution 1.0\n"
" nis => NVIDIA Image Scaling v1.0.3\n"
" anime4k => Anime4K 2x CNN UL upscaling\n"
" --sharpness, --fsr-sharpness upscaler sharpness from 0 (max) to 20 (min)\n"
" --expose-wayland support wayland clients using xdg-shell\n"
" -s, --mouse-sensitivity multiply mouse movement by given decimal number\n"
Expand Down Expand Up @@ -410,6 +411,8 @@ static enum GamescopeUpscaleFilter parse_upscaler_filter(const char *str)
return GamescopeUpscaleFilter::NIS;
} else if (strcmp(str, "pixel") == 0) {
return GamescopeUpscaleFilter::PIXEL;
} else if (strcmp(str, "anime4k") == 0) {
return GamescopeUpscaleFilter::ANIME4K_2X_CNN_UL;
} else {
fprintf( stderr, "gamescope: invalid value for --filter\n" );
exit(1);
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2 changes: 1 addition & 1 deletion src/main.hpp
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Expand Up @@ -36,7 +36,7 @@ enum class GamescopeUpscaleFilter : uint32_t
FSR,
NIS,
PIXEL,

ANIME4K_2X_CNN_UL,
FROM_VIEW = 0xF, // internal
};

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1 change: 1 addition & 0 deletions src/meson.build
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Expand Up @@ -72,6 +72,7 @@ shader_src = [
'shaders/cs_nis.comp',
'shaders/cs_nis_fp16.comp',
'shaders/cs_rgb_to_nv12.comp',
'shaders/Anime4k/CNN_x2_UL/cs_anime4k_2x_cnn_ul.comp',
]

spirv_shaders = glsl_generator.process(shader_src)
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