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[Fix, Test] (MG_State, MG_Impl): reflection-backed glGetProgramiv queries answer zero instead of dereferencing a null TProgram

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swung0x48
2026-08-11 02:59:10 -04:00
parent a6c362c6ce
commit fa0f6693d0
2 changed files with 67 additions and 3 deletions
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MobileGL/MG_State/GLState/ProgramState/ProgramObject.h
+18 -3
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@@ -516,12 +516,27 @@ namespace MobileGL::MG_State::GLState {
Artifacts().infoLog = "No program binary format is supported.";
}
Bool GetValidateStatus() const { return m_validateStatus; }
Int GetActiveAtomicCounterCount() const { return Artifacts().program->getNumAtomicCounters(); }
Int GetActiveAttributesCount() const { return Artifacts().program->getNumPipeInputs(); }
// Artifacts().program is null until a link produces reflection, and glGetProgramiv is
// perfectly legal on a program that never linked (GL 4.6 sec. 7.3: the queried state is
// simply its initial value, zero). Dereferencing it there took the process down with a
// SIGSEGV inside glslang::TProgram::getNumPipeInputs - KHR-GL30.api.coverage does exactly
// this after a failed glGetAttribLocation, and reached it as soon as the CopyTexImage2D
// throw ahead of it stopped killing the run first.
Int GetActiveAtomicCounterCount() const {
const auto& program = Artifacts().program;
return program ? program->getNumAtomicCounters() : 0;
}
Int GetActiveAttributesCount() const {
const auto& program = Artifacts().program;
return program ? program->getNumPipeInputs() : 0;
}
// GL-visible uniform blocks only: the synthesized MGL_GLOBAL_UBO the relaxed parse
// materializes for default-block uniforms is filtered out by DoReflection.
Int GetActiveUniformBlocksCount() const { return static_cast<Int>(Artifacts().glBlockIndexToTProgram.size()); }
GLuint GetComputeLocalSize(Uint dim) const { return Artifacts().program->getLocalSize(static_cast<Int>(dim)); }
GLuint GetComputeLocalSize(Uint dim) const {
const auto& program = Artifacts().program;
return program ? program->getLocalSize(static_cast<Int>(dim)) : 0;
}
Int GetActiveAttributesMaxLength() const { return Artifacts().attribInNameMaxLength; }
Int GetActiveUniformBlocksMaxNameLength() const { return Artifacts().uniformBlockNameMaxLength; }
Uint GetUniformBlockIndex(const char* name) const {