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[Fix, Test] (GLImpl): enforce GL_MAX_ATOMIC_COUNTER_BUFFER_BINDINGS on the bind and indexed-query paths

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swung0x48
2026-08-20 11:39:28 -04:00
parent f88322ce84
commit ee98c453ed
3 changed files with 35 additions and 12 deletions
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MobileGL/MG_Impl/GLImpl/Buffer/Validators.cpp
+8
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@@ -13,6 +13,7 @@
#include <MG_Util/Converters/GLToStr/GLEnumConverter.h>
#include <MG_Util/Converters/MGToGL/BufferEnumConverter.h>
#include <MG_Util/Converters/MGToStr/BufferEnumConverter.h>
#include <MG_Util/ShaderTranspiler/Types.h>
namespace MobileGL::MG_Impl::GLImpl::BufferImpl {
Bool ValidateBufferTarget(BufferTarget target) {
@@ -67,6 +68,13 @@ namespace MobileGL::MG_Impl::GLImpl::BufferImpl {
// binding points in GL 3.3 (no ARB_transform_feedback3).
pointCount = std::min<SizeT>(pointCount, 4);
}
if (target == BufferTarget::AtomicCounter) {
// GL_MAX_ATOMIC_COUNTER_BUFFER_BINDINGS, which is NOT the state layer's array
// size: a counter buffer reaches a shader only as a lowered storage block, so the
// reserved range is the ceiling, and glGetIntegerv advertises the same number.
pointCount = std::min<SizeT>(
pointCount, static_cast<SizeT>(MG_Util::ShaderTranspiler::MAX_ATOMIC_COUNTER_BUFFER_BINDINGS));
}
return pointCount;
}
} // namespace