Function InitBlenderMode

Source/SysGL/HLEGraphics/RendererGL.cpp:741–863

#endif

static void InitBlenderMode()
{
	u32 cycle_type    = gRDPOtherMode.cycle_type;
	u32 cvg_x_alpha   = gRDPOtherMode.cvg_x_alpha;
	u32 alpha_cvg_sel = gRDPOtherMode.alpha_cvg_sel;
	u32 blendmode     = gRDPOtherMode.blender;

	// NB: If we're running in 1cycle mode, ignore the 2nd cycle.
	u32 active_mode = (cycle_type == CYCLE_2CYCLE) ? blendmode : (blendmode & 0xcccc);

	enum BlendType
	{
		kBlendModeOpaque,
		kBlendModeAlphaTrans,
		kBlendModeFade,
	};
	BlendType type = kBlendModeOpaque;

	// FIXME(strmnnrmn): lots of these need fog!

	switch (active_mode)
	{
	case 0x0040: // In * AIn + Mem * 1-A
		// MarioKart (spinning logo).
		type = kBlendModeAlphaTrans;
		break;
	case 0x0050: // In * AIn + Mem * 1-A | In * AIn + Mem * 1-A
		// Extreme-G.
		type = kBlendModeAlphaTrans;
		break;
	case 0x0440: // In * AFog + Mem * 1-A
		// Bomberman64. alpha_cvg_sel: 1 cvg_x_alpha: 1
		type = kBlendModeAlphaTrans;
		break;
	case 0x04d0: // In * AFog + Fog * 1-A | In * AIn + Mem * 1-A
		// Conker.
		type = kBlendModeAlphaTrans;
		break;
	case 0x0150: // In * AIn + Mem * 1-A | In * AFog + Mem * 1-A
		// Spiderman.
		type = kBlendModeAlphaTrans;
		break;
	case 0x0c08: // In * 0 + In * 1
		// MarioKart (spinning logo)
		// This blend mode doesn't use the alpha value
		type = kBlendModeOpaque;
		break;
	case 0x0c18: // In * 0 + In * 1 | In * AIn + Mem * 1-A
		// StarFox main menu.
		type = kBlendModeAlphaTrans;
		break;
	case 0x0c40: // In * 0 + Mem * 1-A
		// Extreme-G.
		type = kBlendModeFade;
		break;
	case 0x0f0a: // In * 0 + In * 1 | In * 0 + In * 1
		// Zelda OoT.
		type = kBlendModeOpaque;