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[Fix, Test] (GLImpl, MG_State, DirectGLES, MG_Test): separate the transform feedback query counters and prefer the exact CPU count on DirectGLES

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swung0x48
2026-08-20 04:58:54 -04:00
parent 56377d2025
commit 085eb5835b
6 changed files with 340 additions and 6 deletions
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MobileGL/MG_Impl/GLImpl/Drawing/GL_Drawing.cpp
+11
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@@ -108,6 +108,12 @@ namespace MobileGL::MG_Impl::GLImpl {
const auto& program = MG_State::pGLContext->GetTransformFeedbackProgram();
if (program != nullptr) {
// A geometry stage writes what it emits, not what the draw assembled, and the
// amplification factor lives in the shader. Record that this span contained such
// a draw so the transform feedback queries keep their backend result for it.
if (program->GetShaderIndexByStage(ShaderStage::Geometry) >= 0) {
MG_State::pGLContext->AddTransformFeedbackGeometryCaptureDraw();
}
// Capacity in captured vertices = the tightest bound buffer.
Uint64 capacityVertices = ~0ull;
for (SizeT i = 0; i < program->GetTransformFeedbackBufferCount(); ++i) {
@@ -127,6 +133,11 @@ namespace MobileGL::MG_Impl::GLImpl {
}
MG_State::pGLContext->AddTransformFeedbackPrimitives(primitives);
MG_State::pGLContext->AddTransformFeedbackCapturedVertices(primitives * verticesPerPrimitive);
// Only draws that get this far are in the written counter at all. The instanced and
// indirect entry points never call this function, so a span that contains one is NOT
// fully accounted, and the queries must be able to tell: they compare this counter's
// delta against zero before standing in for the backend's own result.
MG_State::pGLContext->AddTransformFeedbackAccountedCaptureDraw();
}
// Every primitive mode a draw command accepts (GL 4.6 core table 10.1, plus