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[Fix, Test] (MG_Impl, MG_State): GL entry points record errors instead of throwing through the C ABI - CopyTexImage superset rule, TEXTURE_BUFFER level queries, indexed cap toggles

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swung0x48
2026-08-11 02:24:41 -04:00
parent efa0345c36
commit 5c8a9c41d6
8 changed files with 363 additions and 21 deletions
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MobileGL/MG_State/GLState/RenderState/RenderState.cpp
+14 -4
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@@ -7,6 +7,7 @@
// End of Source File Header
#include "RenderState.h"
#include "MG_Util/Debug/Log.h"
#include "MG_Util/Types.h"
namespace MobileGL {
@@ -268,9 +269,14 @@ namespace MobileGL {
}
void RenderState::SetCapabilityIndexed(CapabilityInput cap, Uint index, Bool enabled) {
// Only for BlendState currently
// Only for BlendState currently. The GL entry points (glEnablei/glDisablei) already
// reject every non-GL_BLEND target with GL_INVALID_ENUM before reaching here, so this
// is a backstop - but it must stay a backstop: THROW_UNIMPL_EXCEPTION unwinds a C++
// exception through the C GL ABI and terminates the process.
if (cap != CapabilityInput::Blend) {
THROW_UNIMPL_EXCEPTION;
MGLOG_I("RenderState::SetCapabilityIndexed: indexed capability state exists only for "
"GL_BLEND (cap=%d, index=%u); ignoring",
static_cast<int>(cap), index);
return;
}
if (index >= MG_State::GLState::FramebufferObject::MAX_DRAW_BUFFERS) {
@@ -284,9 +290,13 @@ namespace MobileGL {
}
Bool RenderState::IsCapabilityEnabledIndexed(CapabilityInput cap, Uint index) const {
// Only for BlendState currently
// Only for BlendState currently - same backstop reasoning as SetCapabilityIndexed:
// glIsEnabledi has already answered GL_INVALID_ENUM/GL_FALSE for anything else, and a
// query must never be able to terminate the process.
if (cap != CapabilityInput::Blend) {
THROW_UNIMPL_EXCEPTION;
MGLOG_I("RenderState::IsCapabilityEnabledIndexed: indexed capability state exists only "
"for GL_BLEND (cap=%d, index=%u); reporting disabled",
static_cast<int>(cap), index);
return false;
}
if (index >= MG_State::GLState::FramebufferObject::MAX_DRAW_BUFFERS) {