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[Fix, Test] (GLImpl, ShaderTranspiler): reconcile the compute work-group limits glGetIntegeri_v and glslang advertise

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swung0x48
2026-08-20 12:41:01 -04:00
parent 04a06438c5
commit cb155c5b94
5 changed files with 126 additions and 20 deletions
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MobileGL/MG_Impl/GLImpl/Getter/GL_Getter.cpp
+10 -3
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@@ -47,7 +47,10 @@ namespace MobileGL::MG_Impl::GLImpl {
}
}
constexpr GLint kFrontendMaxComputeUniformComponents = 1024;
// Shared with the glslang resource table for the same reason as the atomic-counter
// limits below: gl_MaxComputeUniformComponents expands from BuildTBuiltInResource.
constexpr GLint kFrontendMaxComputeUniformComponents =
static_cast<GLint>(MG_Util::ShaderTranspiler::MAX_COMPUTE_UNIFORM_COMPONENTS);
// Every atomic-counter limit is shared with the glslang resource table
// (BuildTBuiltInResource) through MG_Util/ShaderTranspiler/Types.h: GL 4.6 requires
// glGetIntegerv and the gl_MaxAtomicCounter* built-in constants to agree, and the two
@@ -118,12 +121,16 @@ namespace MobileGL::MG_Impl::GLImpl {
constexpr GLint kFrontendSubpixelBits = 4;
constexpr GLint kFrontendMaxSamples = 4;
// The floors under GL_MAX_COMPUTE_WORK_GROUP_COUNT / _SIZE. Shared with the compile
// pipeline (CaptureCompileEnv floors the same driver answers at them, and
// BuildTBuiltInResource expands gl_MaxComputeWorkGroup* from the result), because a
// shader is allowed to compare the built-in constant against this query.
constexpr GLint GetMinComputeWorkGroupCount(GLuint index) {
return index < 3 ? 65535 : 0;
return index < 3 ? static_cast<GLint>(MG_Util::ShaderTranspiler::MIN_COMPUTE_WORK_GROUP_COUNT[index]) : 0;
}
constexpr GLint GetMinComputeWorkGroupSize(GLuint index) {
return index < 2 ? 1024 : (index == 2 ? 64 : 0);
return index < 3 ? static_cast<GLint>(MG_Util::ShaderTranspiler::MIN_COMPUTE_WORK_GROUP_SIZE[index]) : 0;
}
GLint GetMaxCombinedUniformComponents(GLint maxDefaultUniformComponents, GLint maxUniformBlocks,