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[Fix, Test] (MG_State, MG_Impl): a reserved program-pipeline name takes state from UseProgramStages and its siblings instead of rejecting them

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swung0x48
2026-08-11 20:10:16 -04:00
parent 6cf5a7744e
commit f7d63f88fa
3 changed files with 35 additions and 8 deletions
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MobileGL/MG_Impl/GLImpl/Program/GL_ProgramPipeline.cpp
+14 -4
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@@ -19,16 +19,26 @@ namespace MobileGL::MG_Impl::GLImpl {
code, MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", function, Move(message)));
}
// A pipeline name only names an object once it has been bound or created; querying a
// reserved-but-unmaterialised name is INVALID_OPERATION (GL 4.6 core 7.4).
// GL 4.6 core 7.4 asks only that the name came from GenProgramPipelines and has not been
// deleted - so a name that was reserved and never bound is legal here, and the command
// MATERIALIZES it rather than rejecting it.
//
// Requiring a bound object instead is what broke every separable-program conformance case
// across three families: the CTS reserves a name, calls glUseProgramStages three times and
// only then binds, which is the order the spec's own example uses. Each of those calls
// failed with INVALID_OPERATION, so the stage programs were never recorded - the pipeline
// stayed empty, GetProgramForDraw flattened nothing and the draw painted nothing, and the
// rejected calls' error was left in the queue for the harness to find. One cause, both
// symptoms.
const SharedPtr<MG_State::GLState::ProgramPipelineObject>* TryGetPipeline(GLuint pipeline,
const char* function) {
if (!MG_State::pGLContext->IsProgramPipelineObject(pipeline)) {
const auto& object = MG_State::pGLContext->MaterializeProgramPipelineObject(pipeline);
if (!object) {
RecordPipelineError(ErrorCode::InvalidOperation, function,
std::format("Program pipeline {} does not exist.", pipeline));
return nullptr;
}
return &MG_State::pGLContext->GetProgramPipelineObject(pipeline);
return &object;
}
Bool ValidatePipelineCount(GLsizei n, const char* function) {