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[Feat] (MG_State/Program): Get current program

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This commit is contained in:
swung0x48
2025-08-21 22:48:20 +08:00
parent 2617903e71
commit 476de2b8f7
6 changed files with 75 additions and 9 deletions
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MobileGL/MG_Impl/GLImpl/Program/GL_Program.cpp
+34 -2
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@@ -383,12 +383,43 @@ namespace MobileGL {
return programObject->GetUniformLocation(name);
}
void GetUniform_State(GLuint program, GLint location, void* params) {
auto programObject = TryToGetProgramObject(program);
if (!programObject)
return;
if (!programObject->GetLinkStatus()) {
MG_State::pGLContext->RecordError(
ErrorCode::InvalidOperation,
MakeShared<GenericErrorInfo>("MG_Impl/GLImpl", __func__,
"`program` has not been successfully linked."));
return;
}
if (location >= programObject->GetUniformCount() || programObject->GetUniformName(location).empty()) {
MG_State::pGLContext->RecordError(
ErrorCode::InvalidOperation,
MakeShared<GenericErrorInfo>("MG_Impl/GLImpl", __func__,
"`location` does not correspond to a valid uniform variable location for the specified program object."));
return;
}
auto isOpaque = programObject->IsUniformOpaqueAtLocation(location);
if (!isOpaque) {
// TODO: probably handle int/float differences
auto offset = programObject->GetUniformOffset(location);
auto size = programObject->GetUniformSizesInBytes(location);
char* pUBO = (char*)programObject->MapUBO();
memcpy(params, pUBO + offset, size);
}
// TODO: handle 1i variant as texture unit
}
void GetUniformfv_State(GLuint program, GLint location, GLfloat* params) {
THROW_UNIMPL_EXCEPTION;
GetUniform_State(program, location, params);
}
void GetUniformiv_State(GLuint program, GLint location, GLint* params) {
THROW_UNIMPL_EXCEPTION;
GetUniform_State(program, location, params);
}
GLboolean IsProgram_State(GLuint program) {
@@ -447,6 +478,7 @@ namespace MobileGL {
}
void Uniform1fv_State(GLint location, GLsizei count, const GLfloat* value) {
THROW_UNIMPL_EXCEPTION;
}