Method Initialise

Source/SysPSP/Graphics/GraphicsContext.cpp:707–830

}

bool IGraphicsContext::Initialise()
{
	sceGuInit();

	bool	is_videmem;		// Result is ignored

	void *	draw_buffer;
	void *	disp_buffer;
	void *	depth_buffer;

	if( g32bitColorMode )
	{
		PIXEL_SIZE = 4; /* change this if you change to another screenmode */
		SCR_MODE = GU_PSM_8888;
	}
	else
	{
		PIXEL_SIZE = 2; /* change this if you change to another screenmode */
		SCR_MODE = GU_PSM_5650;
	}

	// compute and allocate buffers for largest possible frame
	if ( PSP_TV_CABLE > 0 )
	{
		BUF_WIDTH = 768;
		SCR_WIDTH = 720;
		SCR_HEIGHT = 480;

		// Hack, Tv out doesn't work in 16bit for some reasons so we use 32bit
		//
		PIXEL_SIZE = 4;
		SCR_MODE = GU_PSM_8888;
	}

	//Alloc all buffers with one call to save alloc list overhead //Corn
	if ( PSP_TV_CABLE > 0 )
	{
		CVideoMemoryManager::Get()->Alloc( FRAME_SIZE + LACED_SIZE + DEPTH_SIZE, &draw_buffer, &is_videmem );
		disp_buffer =  (void*)((u32)draw_buffer + FRAME_SIZE);
		depth_buffer = (void*)((u32)draw_buffer + FRAME_SIZE + LACED_SIZE);
	}
	else
	{
		CVideoMemoryManager::Get()->Alloc( FRAME_SIZE + FRAME_SIZE + DEPTH_SIZE, &draw_buffer, &is_videmem );
		disp_buffer =  (void*)((u32)draw_buffer + FRAME_SIZE);
		depth_buffer = (void*)((u32)draw_buffer + FRAME_SIZE + FRAME_SIZE);
	}

	void *	draw_buffer_rel( VramAddrAsOffset( draw_buffer ) );
	void *	disp_buffer_rel( VramAddrAsOffset( disp_buffer ) );
	void *	depth_buffer_rel( VramAddrAsOffset( depth_buffer ) );
	save_draw_rel = draw_buffer_rel;
	save_disp_rel = disp_buffer_rel;
	save_depth_rel = depth_buffer_rel;

#ifdef DAEDALUS_DEBUG_DISPLAYLIST
	printf( "Alloc %d bytes for draw buffer A at %p\n", FRAME_SIZE, draw_buffer );
	printf( "Alloc %d bytes for draw buffer B at %p\n", FRAME_SIZE, disp_buffer );