mirrors/SDL
1
0
Fork 0
mirror of https://github.com/libsdl-org/SDL.git synced 2025-10-04 00:46:25 +00:00
Code Issues Packages Projects Releases Wiki Activity

gpu: rework alpha-to-coverage validation

Browse Source
This commit is contained in:
Eri the Switch
2025-04-06 19:22:59 +03:00
committed by Sam Lantinga
parent ceb9fecfc1
commit 3343cb2147
2 changed files with 97 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

83
src/gpu/SDL_sysgpu.h
View File

@@ -438,6 +438,89 @@ static inline bool IsCompressedFormat(
}
}
static inline bool FormatHasAlpha(
SDL_GPUTextureFormat format)
{
switch (format) {
case SDL_GPU_TEXTUREFORMAT_ASTC_12x10_UNORM:
case SDL_GPU_TEXTUREFORMAT_ASTC_12x12_UNORM:
case SDL_GPU_TEXTUREFORMAT_ASTC_12x10_UNORM_SRGB:
case SDL_GPU_TEXTUREFORMAT_ASTC_12x12_UNORM_SRGB:
case SDL_GPU_TEXTUREFORMAT_ASTC_12x10_FLOAT:
case SDL_GPU_TEXTUREFORMAT_ASTC_12x12_FLOAT:
case SDL_GPU_TEXTUREFORMAT_ASTC_10x5_UNORM:
case SDL_GPU_TEXTUREFORMAT_ASTC_10x6_UNORM:
case SDL_GPU_TEXTUREFORMAT_ASTC_10x8_UNORM:
case SDL_GPU_TEXTUREFORMAT_ASTC_10x10_UNORM:
case SDL_GPU_TEXTUREFORMAT_ASTC_10x5_UNORM_SRGB:
case SDL_GPU_TEXTUREFORMAT_ASTC_10x6_UNORM_SRGB:
case SDL_GPU_TEXTUREFORMAT_ASTC_10x8_UNORM_SRGB:
case SDL_GPU_TEXTUREFORMAT_ASTC_10x10_UNORM_SRGB:
case SDL_GPU_TEXTUREFORMAT_ASTC_10x5_FLOAT:
case SDL_GPU_TEXTUREFORMAT_ASTC_10x6_FLOAT:
case SDL_GPU_TEXTUREFORMAT_ASTC_10x8_FLOAT:
case SDL_GPU_TEXTUREFORMAT_ASTC_10x10_FLOAT:
case SDL_GPU_TEXTUREFORMAT_ASTC_8x5_UNORM:
case SDL_GPU_TEXTUREFORMAT_ASTC_8x6_UNORM:
case SDL_GPU_TEXTUREFORMAT_ASTC_8x8_UNORM:
case SDL_GPU_TEXTUREFORMAT_ASTC_8x5_UNORM_SRGB:
case SDL_GPU_TEXTUREFORMAT_ASTC_8x6_UNORM_SRGB:
case SDL_GPU_TEXTUREFORMAT_ASTC_8x8_UNORM_SRGB:
case SDL_GPU_TEXTUREFORMAT_ASTC_8x5_FLOAT:
case SDL_GPU_TEXTUREFORMAT_ASTC_8x6_FLOAT:
case SDL_GPU_TEXTUREFORMAT_ASTC_8x8_FLOAT:
case SDL_GPU_TEXTUREFORMAT_ASTC_6x5_UNORM:
case SDL_GPU_TEXTUREFORMAT_ASTC_6x6_UNORM:
case SDL_GPU_TEXTUREFORMAT_ASTC_6x5_UNORM_SRGB:
case SDL_GPU_TEXTUREFORMAT_ASTC_6x6_UNORM_SRGB:
case SDL_GPU_TEXTUREFORMAT_ASTC_6x5_FLOAT:
case SDL_GPU_TEXTUREFORMAT_ASTC_6x6_FLOAT:
case SDL_GPU_TEXTUREFORMAT_ASTC_5x4_UNORM:
case SDL_GPU_TEXTUREFORMAT_ASTC_5x5_UNORM:
case SDL_GPU_TEXTUREFORMAT_ASTC_5x4_UNORM_SRGB:
case SDL_GPU_TEXTUREFORMAT_ASTC_5x5_UNORM_SRGB:
case SDL_GPU_TEXTUREFORMAT_ASTC_5x4_FLOAT:
case SDL_GPU_TEXTUREFORMAT_ASTC_5x5_FLOAT:
case SDL_GPU_TEXTUREFORMAT_ASTC_4x4_UNORM:
case SDL_GPU_TEXTUREFORMAT_ASTC_4x4_UNORM_SRGB:
case SDL_GPU_TEXTUREFORMAT_ASTC_4x4_FLOAT:
// ASTC textures may or may not have alpha; return true as this is mainly intended for validation
return true;
case SDL_GPU_TEXTUREFORMAT_BC1_RGBA_UNORM:
case SDL_GPU_TEXTUREFORMAT_BC2_RGBA_UNORM:
case SDL_GPU_TEXTUREFORMAT_BC3_RGBA_UNORM:
case SDL_GPU_TEXTUREFORMAT_BC7_RGBA_UNORM:
case SDL_GPU_TEXTUREFORMAT_BC1_RGBA_UNORM_SRGB:
case SDL_GPU_TEXTUREFORMAT_BC2_RGBA_UNORM_SRGB:
case SDL_GPU_TEXTUREFORMAT_BC3_RGBA_UNORM_SRGB:
case SDL_GPU_TEXTUREFORMAT_BC7_RGBA_UNORM_SRGB:
case SDL_GPU_TEXTUREFORMAT_R8G8B8A8_UNORM:
case SDL_GPU_TEXTUREFORMAT_B8G8R8A8_UNORM:
case SDL_GPU_TEXTUREFORMAT_B5G5R5A1_UNORM:
case SDL_GPU_TEXTUREFORMAT_B4G4R4A4_UNORM:
case SDL_GPU_TEXTUREFORMAT_R10G10B10A2_UNORM:
case SDL_GPU_TEXTUREFORMAT_R16G16B16A16_UNORM:
case SDL_GPU_TEXTUREFORMAT_A8_UNORM:
case SDL_GPU_TEXTUREFORMAT_R8G8B8A8_SNORM:
case SDL_GPU_TEXTUREFORMAT_R16G16B16A16_SNORM:
case SDL_GPU_TEXTUREFORMAT_R16G16B16A16_FLOAT:
case SDL_GPU_TEXTUREFORMAT_R32G32B32A32_FLOAT:
case SDL_GPU_TEXTUREFORMAT_R8G8B8A8_UINT:
case SDL_GPU_TEXTUREFORMAT_R16G16B16A16_UINT:
case SDL_GPU_TEXTUREFORMAT_R32G32B32A32_UINT:
case SDL_GPU_TEXTUREFORMAT_R8G8B8A8_INT:
case SDL_GPU_TEXTUREFORMAT_R16G16B16A16_INT:
case SDL_GPU_TEXTUREFORMAT_R32G32B32A32_INT:
case SDL_GPU_TEXTUREFORMAT_R8G8B8A8_UNORM_SRGB:
case SDL_GPU_TEXTUREFORMAT_B8G8R8A8_UNORM_SRGB:
return true;
default:
return false;
}
}
static inline Uint32 IndexSize(SDL_GPUIndexElementSize size)
{
return (size == SDL_GPU_INDEXELEMENTSIZE_16BIT) ? 2 : 4;