rlm@1: #include "GBAGfx.h"
rlm@1: #include "GBAGlobals.h"
rlm@1: 
rlm@1: void mode2RenderLine()
rlm@1: {
rlm@1: 	u16 *palette = (u16 *)paletteRAM;
rlm@1: 
rlm@1: 	if (DISPCNT & 0x80)
rlm@1: 	{
rlm@1: 		for (int x = 0; x < 240; x++)
rlm@1: 		{
rlm@1: 			lineMix[x] = 0x7fff;
rlm@1: 		}
rlm@1: 		gfxLastVCOUNT = VCOUNT;
rlm@1: 		return;
rlm@1: 	}
rlm@1: 
rlm@1: 	if (layerEnable & 0x0400)
rlm@1: 	{
rlm@1: 		int changed = gfxBG2Changed;
rlm@1: 		if (gfxLastVCOUNT > VCOUNT)
rlm@1: 			changed = 3;
rlm@1: 
rlm@1: 		gfxDrawRotScreen(BG2CNT, BG2X_L, BG2X_H, BG2Y_L, BG2Y_H,
rlm@1: 		                 BG2PA, BG2PB, BG2PC, BG2PD, gfxBG2X, gfxBG2Y,
rlm@1: 		                 changed, line2);
rlm@1: 	}
rlm@1: 
rlm@1: 	if (layerEnable & 0x0800)
rlm@1: 	{
rlm@1: 		int changed = gfxBG3Changed;
rlm@1: 		if (gfxLastVCOUNT > VCOUNT)
rlm@1: 			changed = 3;
rlm@1: 
rlm@1: 		gfxDrawRotScreen(BG3CNT, BG3X_L, BG3X_H, BG3Y_L, BG3Y_H,
rlm@1: 		                 BG3PA, BG3PB, BG3PC, BG3PD, gfxBG3X, gfxBG3Y,
rlm@1: 		                 changed, line3);
rlm@1: 	}
rlm@1: 
rlm@1: 	gfxDrawSprites(lineOBJ);
rlm@1: 
rlm@1: 	u32 backdrop = (READ16LE(&palette[0]) | 0x30000000);
rlm@1: 
rlm@1: 	for (int x = 0; x < 240; x++)
rlm@1: 	{
rlm@1: 		u32 color = backdrop;
rlm@1: 		u8  top   = 0x20;
rlm@1: 
rlm@1: 		if ((u8)(line2[x]>>24) < (u8)(color >> 24))
rlm@1: 		{
rlm@1: 			color = line2[x];
rlm@1: 			top   = 0x04;
rlm@1: 		}
rlm@1: 
rlm@1: 		if ((u8)(line3[x]>>24) < (u8)(color >> 24))
rlm@1: 		{
rlm@1: 			color = line3[x];
rlm@1: 			top   = 0x08;
rlm@1: 		}
rlm@1: 
rlm@1: 		if ((u8)(lineOBJ[x]>>24) < (u8)(color >> 24))
rlm@1: 		{
rlm@1: 			color = lineOBJ[x];
rlm@1: 			top   = 0x10;
rlm@1: 		}
rlm@1: 
rlm@1: 		if ((top & 0x10) && (color & 0x00010000))
rlm@1: 		{
rlm@1: 			// semi-transparent OBJ
rlm@1: 			u32 back = backdrop;
rlm@1: 			u8  top2 = 0x20;
rlm@1: 
rlm@1: 			if ((u8)(line2[x]>>24) < (u8)(back >> 24))
rlm@1: 			{
rlm@1: 				back = line2[x];
rlm@1: 				top2 = 0x04;
rlm@1: 			}
rlm@1: 
rlm@1: 			if ((u8)(line3[x]>>24) < (u8)(back >> 24))
rlm@1: 			{
rlm@1: 				back = line3[x];
rlm@1: 				top2 = 0x08;
rlm@1: 			}
rlm@1: 
rlm@1: 			if (top2 & (BLDMOD>>8))
rlm@1: 				color = gfxAlphaBlend(color, back,
rlm@1: 				                      coeff[COLEV & 0x1F],
rlm@1: 				                      coeff[(COLEV >> 8) & 0x1F]);
rlm@1: 			else
rlm@1: 			{
rlm@1: 				switch ((BLDMOD >> 6) & 3)
rlm@1: 				{
rlm@1: 				case 2:
rlm@1: 					if (BLDMOD & top)
rlm@1: 						color = gfxIncreaseBrightness(color, coeff[COLY & 0x1F]);
rlm@1: 					break;
rlm@1: 				case 3:
rlm@1: 					if (BLDMOD & top)
rlm@1: 						color = gfxDecreaseBrightness(color, coeff[COLY & 0x1F]);
rlm@1: 					break;
rlm@1: 				}
rlm@1: 			}
rlm@1: 		}
rlm@1: 
rlm@1: 		lineMix[x] = color;
rlm@1: 	}
rlm@1: 	gfxBG2Changed = 0;
rlm@1: 	gfxBG3Changed = 0;
rlm@1: 	gfxLastVCOUNT = VCOUNT;
rlm@1: }
rlm@1: 
rlm@1: void mode2RenderLineNoWindow()
rlm@1: {
rlm@1: 	u16 *palette = (u16 *)paletteRAM;
rlm@1: 
rlm@1: 	if (DISPCNT & 0x80)
rlm@1: 	{
rlm@1: 		for (int x = 0; x < 240; x++)
rlm@1: 		{
rlm@1: 			lineMix[x] = 0x7fff;
rlm@1: 		}
rlm@1: 		gfxLastVCOUNT = VCOUNT;
rlm@1: 		return;
rlm@1: 	}
rlm@1: 
rlm@1: 	if (layerEnable & 0x0400)
rlm@1: 	{
rlm@1: 		int changed = gfxBG2Changed;
rlm@1: 		if (gfxLastVCOUNT > VCOUNT)
rlm@1: 			changed = 3;
rlm@1: 
rlm@1: 		gfxDrawRotScreen(BG2CNT, BG2X_L, BG2X_H, BG2Y_L, BG2Y_H,
rlm@1: 		                 BG2PA, BG2PB, BG2PC, BG2PD, gfxBG2X, gfxBG2Y,
rlm@1: 		                 changed, line2);
rlm@1: 	}
rlm@1: 
rlm@1: 	if (layerEnable & 0x0800)
rlm@1: 	{
rlm@1: 		int changed = gfxBG3Changed;
rlm@1: 		if (gfxLastVCOUNT > VCOUNT)
rlm@1: 			changed = 3;
rlm@1: 
rlm@1: 		gfxDrawRotScreen(BG3CNT, BG3X_L, BG3X_H, BG3Y_L, BG3Y_H,
rlm@1: 		                 BG3PA, BG3PB, BG3PC, BG3PD, gfxBG3X, gfxBG3Y,
rlm@1: 		                 changed, line3);
rlm@1: 	}
rlm@1: 
rlm@1: 	gfxDrawSprites(lineOBJ);
rlm@1: 
rlm@1: 	u32 backdrop = (READ16LE(&palette[0]) | 0x30000000);
rlm@1: 
rlm@1: 	for (int x = 0; x < 240; x++)
rlm@1: 	{
rlm@1: 		u32 color = backdrop;
rlm@1: 		u8  top   = 0x20;
rlm@1: 
rlm@1: 		if ((u8)(line2[x]>>24) < (u8)(color >> 24))
rlm@1: 		{
rlm@1: 			color = line2[x];
rlm@1: 			top   = 0x04;
rlm@1: 		}
rlm@1: 
rlm@1: 		if ((u8)(line3[x]>>24) < (u8)(color >> 24))
rlm@1: 		{
rlm@1: 			color = line3[x];
rlm@1: 			top   = 0x08;
rlm@1: 		}
rlm@1: 
rlm@1: 		if ((u8)(lineOBJ[x]>>24) < (u8)(color >> 24))
rlm@1: 		{
rlm@1: 			color = lineOBJ[x];
rlm@1: 			top   = 0x10;
rlm@1: 		}
rlm@1: 
rlm@1: 		if (!(color & 0x00010000))
rlm@1: 		{
rlm@1: 			switch ((BLDMOD >> 6) & 3)
rlm@1: 			{
rlm@1: 			case 0:
rlm@1: 				break;
rlm@1: 			case 1:
rlm@1: 			{
rlm@1: 				if (top & BLDMOD)
rlm@1: 				{
rlm@1: 					u32 back = backdrop;
rlm@1: 					u8  top2 = 0x20;
rlm@1: 
rlm@1: 					if ((u8)(line2[x]>>24) < (u8)(back >> 24))
rlm@1: 					{
rlm@1: 						if (top != 0x04)
rlm@1: 						{
rlm@1: 							back = line2[x];
rlm@1: 							top2 = 0x04;
rlm@1: 						}
rlm@1: 					}
rlm@1: 
rlm@1: 					if ((u8)(line3[x]>>24) < (u8)(back >> 24))
rlm@1: 					{
rlm@1: 						if (top != 0x08)
rlm@1: 						{
rlm@1: 							back = line3[x];
rlm@1: 							top2 = 0x08;
rlm@1: 						}
rlm@1: 					}
rlm@1: 
rlm@1: 					if ((u8)(lineOBJ[x]>>24) < (u8)(back >> 24))
rlm@1: 					{
rlm@1: 						if (top != 0x10)
rlm@1: 						{
rlm@1: 							back = lineOBJ[x];
rlm@1: 							top2 = 0x10;
rlm@1: 						}
rlm@1: 					}
rlm@1: 
rlm@1: 					if (top2 & (BLDMOD>>8))
rlm@1: 						color = gfxAlphaBlend(color, back,
rlm@1: 						                      coeff[COLEV & 0x1F],
rlm@1: 						                      coeff[(COLEV >> 8) & 0x1F]);
rlm@1: 				}
rlm@1: 				break;
rlm@1: 			}
rlm@1: 			case 2:
rlm@1: 				if (BLDMOD & top)
rlm@1: 					color = gfxIncreaseBrightness(color, coeff[COLY & 0x1F]);
rlm@1: 				break;
rlm@1: 			case 3:
rlm@1: 				if (BLDMOD & top)
rlm@1: 					color = gfxDecreaseBrightness(color, coeff[COLY & 0x1F]);
rlm@1: 				break;
rlm@1: 			}
rlm@1: 		}
rlm@1: 		else
rlm@1: 		{
rlm@1: 			// semi-transparent OBJ
rlm@1: 			u32 back = backdrop;
rlm@1: 			u8  top2 = 0x20;
rlm@1: 
rlm@1: 			if ((u8)(line2[x]>>24) < (u8)(back >> 24))
rlm@1: 			{
rlm@1: 				back = line2[x];
rlm@1: 				top2 = 0x04;
rlm@1: 			}
rlm@1: 
rlm@1: 			if ((u8)(line3[x]>>24) < (u8)(back >> 24))
rlm@1: 			{
rlm@1: 				back = line3[x];
rlm@1: 				top2 = 0x08;
rlm@1: 			}
rlm@1: 
rlm@1: 			if (top2 & (BLDMOD>>8))
rlm@1: 				color = gfxAlphaBlend(color, back,
rlm@1: 				                      coeff[COLEV & 0x1F],
rlm@1: 				                      coeff[(COLEV >> 8) & 0x1F]);
rlm@1: 			else
rlm@1: 			{
rlm@1: 				switch ((BLDMOD >> 6) & 3)
rlm@1: 				{
rlm@1: 				case 2:
rlm@1: 					if (BLDMOD & top)
rlm@1: 						color = gfxIncreaseBrightness(color, coeff[COLY & 0x1F]);
rlm@1: 					break;
rlm@1: 				case 3:
rlm@1: 					if (BLDMOD & top)
rlm@1: 						color = gfxDecreaseBrightness(color, coeff[COLY & 0x1F]);
rlm@1: 					break;
rlm@1: 				}
rlm@1: 			}
rlm@1: 		}
rlm@1: 
rlm@1: 		lineMix[x] = color;
rlm@1: 	}
rlm@1: 	gfxBG2Changed = 0;
rlm@1: 	gfxBG3Changed = 0;
rlm@1: 	gfxLastVCOUNT = VCOUNT;
rlm@1: }
rlm@1: 
rlm@1: void mode2RenderLineAll()
rlm@1: {
rlm@1: 	u16 *palette = (u16 *)paletteRAM;
rlm@1: 
rlm@1: 	if (DISPCNT & 0x80)
rlm@1: 	{
rlm@1: 		for (int x = 0; x < 240; x++)
rlm@1: 		{
rlm@1: 			lineMix[x] = 0x7fff;
rlm@1: 		}
rlm@1: 		gfxLastVCOUNT = VCOUNT;
rlm@1: 		return;
rlm@1: 	}
rlm@1: 
rlm@1: 	bool inWindow0 = false;
rlm@1: 	bool inWindow1 = false;
rlm@1: 
rlm@1: 	if (layerEnable & 0x2000)
rlm@1: 	{
rlm@1: 		u8 v0 = WIN0V >> 8;
rlm@1: 		u8 v1 = WIN0V & 255;
rlm@1: 		inWindow0 = ((v0 == v1) && (v0 >= 0xe8));
rlm@1: 		if (v1 >= v0)
rlm@1: 			inWindow0 |= (VCOUNT >= v0 && VCOUNT < v1);
rlm@1: 		else
rlm@1: 			inWindow0 |= (VCOUNT >= v0 || VCOUNT < v1);
rlm@1: 	}
rlm@1: 	if (layerEnable & 0x4000)
rlm@1: 	{
rlm@1: 		u8 v0 = WIN1V >> 8;
rlm@1: 		u8 v1 = WIN1V & 255;
rlm@1: 		inWindow1 = ((v0 == v1) && (v0 >= 0xe8));
rlm@1: 		if (v1 >= v0)
rlm@1: 			inWindow1 |= (VCOUNT >= v0 && VCOUNT < v1);
rlm@1: 		else
rlm@1: 			inWindow1 |= (VCOUNT >= v0 || VCOUNT < v1);
rlm@1: 	}
rlm@1: 
rlm@1: 	if (layerEnable & 0x0400)
rlm@1: 	{
rlm@1: 		int changed = gfxBG2Changed;
rlm@1: 		if (gfxLastVCOUNT > VCOUNT)
rlm@1: 			changed = 3;
rlm@1: 
rlm@1: 		gfxDrawRotScreen(BG2CNT, BG2X_L, BG2X_H, BG2Y_L, BG2Y_H,
rlm@1: 		                 BG2PA, BG2PB, BG2PC, BG2PD, gfxBG2X, gfxBG2Y,
rlm@1: 		                 changed, line2);
rlm@1: 	}
rlm@1: 
rlm@1: 	if (layerEnable & 0x0800)
rlm@1: 	{
rlm@1: 		int changed = gfxBG3Changed;
rlm@1: 		if (gfxLastVCOUNT > VCOUNT)
rlm@1: 			changed = 3;
rlm@1: 
rlm@1: 		gfxDrawRotScreen(BG3CNT, BG3X_L, BG3X_H, BG3Y_L, BG3Y_H,
rlm@1: 		                 BG3PA, BG3PB, BG3PC, BG3PD, gfxBG3X, gfxBG3Y,
rlm@1: 		                 changed, line3);
rlm@1: 	}
rlm@1: 
rlm@1: 	gfxDrawSprites(lineOBJ);
rlm@1: 	gfxDrawOBJWin(lineOBJWin);
rlm@1: 
rlm@1: 	u32 backdrop = (READ16LE(&palette[0]) | 0x30000000);
rlm@1: 
rlm@1: 	u8 inWin0Mask = WININ & 0xFF;
rlm@1: 	u8 inWin1Mask = WININ >> 8;
rlm@1: 	u8 outMask    = WINOUT & 0xFF;
rlm@1: 
rlm@1: 	for (int x = 0; x < 240; x++)
rlm@1: 	{
rlm@1: 		u32 color = backdrop;
rlm@1: 		u8  top   = 0x20;
rlm@1: 		u8  mask  = outMask;
rlm@1: 
rlm@1: 		if (!(lineOBJWin[x] & 0x80000000))
rlm@1: 		{
rlm@1: 			mask = WINOUT >> 8;
rlm@1: 		}
rlm@1: 
rlm@1: 		if (inWindow1)
rlm@1: 		{
rlm@1: 			if (gfxInWin1[x])
rlm@1: 				mask = inWin1Mask;
rlm@1: 		}
rlm@1: 
rlm@1: 		if (inWindow0)
rlm@1: 		{
rlm@1: 			if (gfxInWin0[x])
rlm@1: 			{
rlm@1: 				mask = inWin0Mask;
rlm@1: 			}
rlm@1: 		}
rlm@1: 
rlm@1: 		if (line2[x] < color && (mask & 4))
rlm@1: 		{
rlm@1: 			color = line2[x];
rlm@1: 			top   = 0x04;
rlm@1: 		}
rlm@1: 
rlm@1: 		if ((u8)(line3[x]>>24) < (u8)(color >> 24) && (mask & 8))
rlm@1: 		{
rlm@1: 			color = line3[x];
rlm@1: 			top   = 0x08;
rlm@1: 		}
rlm@1: 
rlm@1: 		if ((u8)(lineOBJ[x]>>24) < (u8)(color >> 24) && (mask & 16))
rlm@1: 		{
rlm@1: 			color = lineOBJ[x];
rlm@1: 			top   = 0x10;
rlm@1: 		}
rlm@1: 
rlm@1: 		if (mask & 32)
rlm@1: 		{
rlm@1: 			if (!(color & 0x00010000))
rlm@1: 			{
rlm@1: 				switch ((BLDMOD >> 6) & 3)
rlm@1: 				{
rlm@1: 				case 0:
rlm@1: 					break;
rlm@1: 				case 1:
rlm@1: 				{
rlm@1: 					if (top & BLDMOD)
rlm@1: 					{
rlm@1: 						u32 back = backdrop;
rlm@1: 						u8  top2 = 0x20;
rlm@1: 
rlm@1: 						if ((mask & 4) && line2[x] < back)
rlm@1: 						{
rlm@1: 							if (top != 0x04)
rlm@1: 							{
rlm@1: 								back = line2[x];
rlm@1: 								top2 = 0x04;
rlm@1: 							}
rlm@1: 						}
rlm@1: 
rlm@1: 						if ((mask & 8) && (u8)(line3[x]>>24) < (u8)(back >> 24))
rlm@1: 						{
rlm@1: 							if (top != 0x08)
rlm@1: 							{
rlm@1: 								back = line3[x];
rlm@1: 								top2 = 0x08;
rlm@1: 							}
rlm@1: 						}
rlm@1: 
rlm@1: 						if ((mask & 16) && (u8)(lineOBJ[x]>>24) < (u8)(back >> 24))
rlm@1: 						{
rlm@1: 							if (top != 0x10)
rlm@1: 							{
rlm@1: 								back = lineOBJ[x];
rlm@1: 								top2 = 0x10;
rlm@1: 							}
rlm@1: 						}
rlm@1: 
rlm@1: 						if (top2 & (BLDMOD>>8))
rlm@1: 							color = gfxAlphaBlend(color, back,
rlm@1: 							                      coeff[COLEV & 0x1F],
rlm@1: 							                      coeff[(COLEV >> 8) & 0x1F]);
rlm@1: 					}
rlm@1: 					break;
rlm@1: 				}
rlm@1: 				case 2:
rlm@1: 					if (BLDMOD & top)
rlm@1: 						color = gfxIncreaseBrightness(color, coeff[COLY & 0x1F]);
rlm@1: 					break;
rlm@1: 				case 3:
rlm@1: 					if (BLDMOD & top)
rlm@1: 						color = gfxDecreaseBrightness(color, coeff[COLY & 0x1F]);
rlm@1: 					break;
rlm@1: 				}
rlm@1: 			}
rlm@1: 			else
rlm@1: 			{
rlm@1: 				// semi-transparent OBJ
rlm@1: 				u32 back = backdrop;
rlm@1: 				u8  top2 = 0x20;
rlm@1: 
rlm@1: 				if ((mask & 4) && line2[x] < back)
rlm@1: 				{
rlm@1: 					back = line2[x];
rlm@1: 					top2 = 0x04;
rlm@1: 				}
rlm@1: 
rlm@1: 				if ((mask & 8) && (u8)(line3[x]>>24) < (u8)(back >> 24))
rlm@1: 				{
rlm@1: 					back = line3[x];
rlm@1: 					top2 = 0x08;
rlm@1: 				}
rlm@1: 
rlm@1: 				if (top2 & (BLDMOD>>8))
rlm@1: 					color = gfxAlphaBlend(color, back,
rlm@1: 					                      coeff[COLEV & 0x1F],
rlm@1: 					                      coeff[(COLEV >> 8) & 0x1F]);
rlm@1: 				else
rlm@1: 				{
rlm@1: 					switch ((BLDMOD >> 6) & 3)
rlm@1: 					{
rlm@1: 					case 2:
rlm@1: 						if (BLDMOD & top)
rlm@1: 							color = gfxIncreaseBrightness(color, coeff[COLY & 0x1F]);
rlm@1: 						break;
rlm@1: 					case 3:
rlm@1: 						if (BLDMOD & top)
rlm@1: 							color = gfxDecreaseBrightness(color, coeff[COLY & 0x1F]);
rlm@1: 						break;
rlm@1: 					}
rlm@1: 				}
rlm@1: 			}
rlm@1: 		}
rlm@1: 		else if (color & 0x00010000)
rlm@1: 		{
rlm@1: 			// semi-transparent OBJ
rlm@1: 			u32 back = backdrop;
rlm@1: 			u8  top2 = 0x20;
rlm@1: 
rlm@1: 			if ((mask & 4) && line2[x] < back)
rlm@1: 			{
rlm@1: 				back = line2[x];
rlm@1: 				top2 = 0x04;
rlm@1: 			}
rlm@1: 
rlm@1: 			if ((mask & 8) && (u8)(line3[x]>>24) < (u8)(back >> 24))
rlm@1: 			{
rlm@1: 				back = line3[x];
rlm@1: 				top2 = 0x08;
rlm@1: 			}
rlm@1: 
rlm@1: 			if (top2 & (BLDMOD>>8))
rlm@1: 				color = gfxAlphaBlend(color, back,
rlm@1: 				                      coeff[COLEV & 0x1F],
rlm@1: 				                      coeff[(COLEV >> 8) & 0x1F]);
rlm@1: 			else
rlm@1: 			{
rlm@1: 				switch ((BLDMOD >> 6) & 3)
rlm@1: 				{
rlm@1: 				case 2:
rlm@1: 					if (BLDMOD & top)
rlm@1: 						color = gfxIncreaseBrightness(color, coeff[COLY & 0x1F]);
rlm@1: 					break;
rlm@1: 				case 3:
rlm@1: 					if (BLDMOD & top)
rlm@1: 						color = gfxDecreaseBrightness(color, coeff[COLY & 0x1F]);
rlm@1: 					break;
rlm@1: 				}
rlm@1: 			}
rlm@1: 		}
rlm@1: 
rlm@1: 		lineMix[x] = color;
rlm@1: 	}
rlm@1: 	gfxBG2Changed = 0;
rlm@1: 	gfxBG3Changed = 0;
rlm@1: 	gfxLastVCOUNT = VCOUNT;
rlm@1: }
rlm@1: