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[Fix, Test] (MG_Backend/DirectVulkan, MG_Util, MG_Test): VkProgramObject move dropped stageSpirvDigests - a robin-hood swap would pair one program's modules with another's digests; sanity tests assert key identity, not iteration counts

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swung0x48
2026-08-12 00:11:56 -04:00
parent 7b946fd527
commit e71d715e1a
6 changed files with 80 additions and 24 deletions
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MobileGL/MG_Backend/DirectVulkan/Renderer/ProgramFactory.h
+10
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@@ -129,6 +129,14 @@ namespace MobileGL::MG_Backend::DirectVulkan {
hash = other.hash;
stages = std::move(other.stages);
modules = std::move(other.modules);
// Must travel with `modules`: these digests name the SPIR-V those exact
// shader modules were built from, and the pipeline-failure diagnostics
// print the two together. Leaving it behind used to merely lose the
// digests on a rehash; now that the cache is a robin-hood table, insertion
// SWAPS two entries, and a field that no move touches stays behind in the
// slot - pairing one program's modules with another program's digests, so
// a pipeline failure would be reported against the wrong SPIR-V.
stageSpirvDigests = std::move(other.stageSpirvDigests);
descriptorSetLayout = other.descriptorSetLayout;
pipelineLayout = other.pipelineLayout;
bindingKinds = std::move(other.bindingKinds);
@@ -178,6 +186,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
hash = other.hash;
stages = std::move(other.stages);
modules = std::move(other.modules);
stageSpirvDigests = std::move(other.stageSpirvDigests); // travels with `modules` - see the move ctor
descriptorSetLayout = other.descriptorSetLayout;
pipelineLayout = other.pipelineLayout;
bindingKinds = std::move(other.bindingKinds);
@@ -244,6 +253,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
}
modules.clear();
stages.clear();
stageSpirvDigests.clear(); // the modules they describe are gone
}
};