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[Fix] (DirectVulkan): narrow the blended depth-write quirk to order-independent accumulation blends, exempting sorted-transparency, gl_FragDepth writers and fully masked attachments

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swung0x48
2026-07-20 07:39:25 -04:00
parent f9f455144c
commit c158bfa584
9 changed files with 527 additions and 27 deletions
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MobileGL/Config.h
+5 -3
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@@ -81,9 +81,11 @@ namespace MobileGL::MG_Config {
// subgroups wider than 32 lanes (see ShaderSourceProcessor's quirk registry).
QuirkOverride SubgroupPrefixScanQuirk = QuirkOverride::Auto;
// MOBILEGL_MAGMA_DISABLE_BLENDED_DEPTH_WRITE: overrides the DirectVulkan quirk that
// strips depth writes from blended pipelines on drivers without cross-pipeline
// vertex position invariance (see VulkanRenderer's PipelineFactory setup). Auto
// detects Qualcomm.
// strips depth writes from accumulation-blended pipelines (MIN/MAX or additive
// ONE+ONE - the multi-pass depth-equality signature) on drivers without
// cross-pipeline vertex position invariance. Sorted-transparency "over" blends,
// gl_FragDepth writers, and fully color-masked attachments are exempt (see
// PipelineFactory::ShouldSuppressDepthWrite). Auto detects Qualcomm.
QuirkOverride MagmaDisableBlendedDepthWriteQuirk = QuirkOverride::Auto;
// MOBILEGL_DISABLE_ROBUST_BUFFER_ACCESS: leave the Vulkan robustBufferAccess device
// feature off. It is enabled by default to match GL's defined out-of-range fetch