Function DLParser_Process

Source/HLEGraphics/DLParser.cpp:513–611

//
//*****************************************************************************
u32 DLParser_Process(u32 instruction_limit, DLDebugOutput * debug_output)
{
	#ifdef DAEDALUS_ENABLE_PROFILING
	DAEDALUS_PROFILE( "DLParser_Process" );
	#endif
	if ( !CGraphicsContext::Get()->IsInitialised() || !gRenderer )
	{
		return 0;
	}

	// Shut down the debug console when we start rendering
	// TODO: Clear the front/backbuffer the first time this function is called
	// to remove any stuff lingering on the screen.
	if(gFirstCall)
	{
		CGraphicsContext::Get()->ClearAllSurfaces();

		gFirstCall = false;
	}

	// Update Screen only when something is drawn, otherwise several games ex Army Men will flash or shake.
	if( g_ROM.GameHacks != CHAMELEON_TWIST_2 ) gGraphicsPlugin->UpdateScreen();

	OSTask * pTask {(OSTask *)(g_pu8SpMemBase + 0x0FC0)};
	u32 code_base {(u32)pTask->t.ucode & 0x1fffffff};
	u32 code_size {pTask->t.ucode_size};
	u32 data_base {(u32)pTask->t.ucode_data & 0x1fffffff};
	u32 data_size {pTask->t.ucode_data_size};
	u32 stack_size {pTask->t.dram_stack_size >> 6};

	if ( gLastUcodeBase != code_base )
	{
		DLParser_InitMicrocode( code_base, code_size, data_base, data_size );
	}

	//
	// Not sure what to init this with. We should probably read it from the dmem
	//
	gRDPOtherMode.L = 0x00500001;
	gRDPOtherMode.H = 0;

	gRDPFrame++;

	CTextureCache::Get()->PurgeOldTextures();

	// Initialise stack
	gDlistStackPointer=0;
	gDlistStack.address[0] = (u32)pTask->t.data_ptr;
	gDlistStack.limit = -1;

	gRDPStateManager.Reset();

#ifdef DAEDALUS_DEBUG_DISPLAYLIST
	gNumDListsCulled = 0;
	gNumVertices = 0;
	gNumRectsClipped = 0;
	if (debug_output)
		DLDebug_SetOutput(debug_output);