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gpu: fix zero-source alpha blending on swizzled targets

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Co-authored-by: Çağatay Güçlü <33038942+defektu@users.noreply.github.com>
This commit is contained in:
nmzik
2026-10-04 23:22:54 +04:00
parent 8274e517b2
commit 94e7d239dd
7 changed files with 35 additions and 10 deletions
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src/graphics/host_gpu/renderer/pipeline/pipelineCache.cpp
+4
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@@ -640,6 +640,9 @@ PipelineCache::GraphicsPrograms PipelineCache::GetGraphicsPrograms(
case BlendMappingSupport::SourceAlphaOne:
pixel_info.alpha_blend_source = ShaderAlphaBlendSource::SourceAlphaOne;
break;
case BlendMappingSupport::SourceAlphaZero:
pixel_info.alpha_blend_source = ShaderAlphaBlendSource::SourceAlphaZero;
break;
default: break;
}
if (pixel_info.alpha_blend_source != ShaderAlphaBlendSource::None) {
@@ -764,6 +767,7 @@ PipelineCache::Pipeline& PipelineCache::GetGraphicsPipeline(
blend.separate_alpha_blend = false;
break;
case ShaderAlphaBlendSource::SourceAlphaOne:
case ShaderAlphaBlendSource::SourceAlphaZero:
// The second source carries the mapped source factor; its alpha stays logical Sa.
blend.color_srcblend = static_cast<uint8_t>(Prospero::BlendFactor::kSrc1Color);
blend.color_destblend =