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#include "../copyright"
#ifndef _TILE_H_
#define _TILE_H_
#define TILE_PREAMBLE() \
uint8_t *pCache; \
uint32_t TileAddr = BG.TileAddress + ((Tile & 0x3ff) << BG.TileShift); \
if ((Tile & 0x1ff) >= 256) \
TileAddr += BG.NameSelect; \
TileAddr &= 0xffff; \
uint32_t TileNumber; \
pCache = &BG.Buffer[(TileNumber = (TileAddr >> BG.TileShift)) << 6]; \
if (!BG.Buffered [TileNumber]) \
BG.Buffered[TileNumber] = ConvertTile (pCache, TileAddr); \
if (BG.Buffered [TileNumber] == BLANK_TILE) \
return; \
uint32_t l; \
uint16_t *ScreenColors; \
if (BG.DirectColourMode) \
{ \
if (IPPU.DirectColourMapsNeedRebuild) \
S9xBuildDirectColourMaps (); \
ScreenColors = DirectColourMaps [(Tile >> 10) & BG.PaletteMask]; \
} \
else \
ScreenColors = &IPPU.ScreenColors [(((Tile >> 10) & BG.PaletteMask) << BG.PaletteShift) + BG.StartPalette]
#define RENDER_TILE(NORMAL, FLIPPED, N) \
switch (Tile & (V_FLIP | H_FLIP)) \
{ \
case 0: \
bp = pCache + StartLine; \
for (l = LineCount; l != 0; l--, bp += 8, Offset += GFX.PPL) \
{ \
if (*(uint32_t *) bp) \
NORMAL (Offset, bp, ScreenColors); \
if (*(uint32_t *) (bp + 4)) \
NORMAL (Offset + N, bp + 4, ScreenColors); \
} \
break; \
case H_FLIP: \
bp = pCache + StartLine; \
for (l = LineCount; l != 0; l--, bp += 8, Offset += GFX.PPL) \
{ \
if (*(uint32_t *) (bp + 4)) \
FLIPPED (Offset, bp + 4, ScreenColors); \
if (*(uint32_t *) bp) \
FLIPPED (Offset + N, bp, ScreenColors); \
} \
break; \
case H_FLIP | V_FLIP: \
bp = pCache + 56 - StartLine; \
for (l = LineCount; l != 0; l--, bp -= 8, Offset += GFX.PPL) \
{ \
if (*(uint32_t *) (bp + 4)) \
FLIPPED (Offset, bp + 4, ScreenColors); \
if (*(uint32_t *) bp) \
FLIPPED (Offset + N, bp, ScreenColors); \
} \
break; \
case V_FLIP: \
bp = pCache + 56 - StartLine; \
for (l = LineCount; l != 0; l--, bp -= 8, Offset += GFX.PPL) \
{ \
if (*(uint32_t *) bp) \
NORMAL (Offset, bp, ScreenColors); \
if (*(uint32_t *) (bp + 4)) \
NORMAL (Offset + N, bp + 4, ScreenColors); \
} \
break; \
default: \
break; \
}
#define TILE_CLIP_PREAMBLE() \
uint32_t d1; \
uint32_t d2; \
if (StartPixel < 4) \
{ \
d1 = HeadMask [StartPixel]; \
if (StartPixel + Width < 4) \
d1 &= TailMask [StartPixel + Width]; \
} \
else \
d1 = 0; \
if (StartPixel + Width > 4) \
{ \
if (StartPixel > 4) \
d2 = HeadMask [StartPixel - 4]; \
else \
d2 = 0xffffffff; \
d2 &= TailMask [(StartPixel + Width - 4)]; \
} \
else \
d2 = 0
#define RENDER_CLIPPED_TILE(NORMAL, FLIPPED, N) \
uint32_t dd; \
switch (Tile & (V_FLIP | H_FLIP)) \
{ \
case 0: \
bp = pCache + StartLine; \
for (l = LineCount; l != 0; l--, bp += 8, Offset += GFX.PPL) \
{ \
/* This is perfectly OK, regardless of endianness. The tiles are \
* cached in leftmost-endian order (when not horiz flipped) by \
* the ConvertTile function. */ \
if ((dd = (*(uint32_t *) bp) & d1)) \
NORMAL (Offset, (uint8_t *) &dd, ScreenColors); \
if ((dd = (*(uint32_t *) (bp + 4)) & d2)) \
NORMAL (Offset + N, (uint8_t *) &dd, ScreenColors); \
} \
break; \
case H_FLIP: \
bp = pCache + StartLine; \
SWAP_DWORD (d1); \
SWAP_DWORD (d2); \
for (l = LineCount; l != 0; l--, bp += 8, Offset += GFX.PPL) \
{ \
if ((dd = *(uint32_t *) (bp + 4) & d1)) \
FLIPPED (Offset, (uint8_t *) &dd, ScreenColors); \
if ((dd = *(uint32_t *) bp & d2)) \
FLIPPED (Offset + N, (uint8_t *) &dd, ScreenColors); \
} \
break; \
case H_FLIP | V_FLIP: \
bp = pCache + 56 - StartLine; \
SWAP_DWORD (d1); \
SWAP_DWORD (d2); \
for (l = LineCount; l != 0; l--, bp -= 8, Offset += GFX.PPL) \
{ \
if ((dd = *(uint32_t *) (bp + 4) & d1)) \
FLIPPED (Offset, (uint8_t *) &dd, ScreenColors); \
if ((dd = *(uint32_t *) bp & d2)) \
FLIPPED (Offset + N, (uint8_t *) &dd, ScreenColors); \
} \
break; \
case V_FLIP: \
bp = pCache + 56 - StartLine; \
for (l = LineCount; l != 0; l--, bp -= 8, Offset += GFX.PPL) \
{ \
if ((dd = (*(uint32_t *) bp) & d1)) \
NORMAL (Offset, (uint8_t *) &dd, ScreenColors); \
if ((dd = (*(uint32_t *) (bp + 4)) & d2)) \
NORMAL (Offset + N, (uint8_t *) &dd, ScreenColors); \
} \
break; \
default: \
break; \
}
#define RENDER_TILE_LARGE(PIXEL, FUNCTION) \
switch (Tile & (V_FLIP | H_FLIP)) \
{ \
case H_FLIP: \
StartPixel = 7 - StartPixel; \
/* fallthrough for no-flip case - above was a horizontal flip */ \
case 0: \
if((pixel = pCache[StartLine + StartPixel])) \
{ \
pixel = PIXEL; \
for (l = LineCount; l != 0; l--, sp += GFX.PPL, Depth += GFX.PPL) \
{ \
int32_t z; \
for (z = Pixels - 1; z >= 0; z--) \
{ \
if (GFX.Z1 > Depth [z]) \
{ \
sp [z] = FUNCTION(sp + z, pixel); \
Depth [z] = GFX.Z2; \
}\
} \
} \
} \
break; \
case H_FLIP | V_FLIP: \
StartPixel = 7 - StartPixel; \
/* fallthrough for V_FLIP-only case - above was a horizontal flip */ \
case V_FLIP: \
if((pixel = pCache[56 - StartLine + StartPixel])) \
{ \
pixel = PIXEL; \
for (l = LineCount; l != 0; l--, sp += GFX.PPL, Depth += GFX.PPL) \
{ \
int32_t z; \
for (z = Pixels - 1; z >= 0; z--) \
{ \
if (GFX.Z1 > Depth [z]) \
{ \
sp [z] = FUNCTION(sp + z, pixel); \
Depth [z] = GFX.Z2; \
}\
} \
} \
} \
break; \
default: \
break; \
}
#define RENDER_TILE_LARGE_HALFWIDTH(PIXEL, FUNCTION) \
switch (Tile & (V_FLIP | H_FLIP)) \
{ \
case H_FLIP: \
StartPixel = 7 - StartPixel; \
/* fallthrough for no-flip case - above was a horizontal flip */ \
case 0: \
if((pixel = pCache[StartLine + StartPixel])) \
{ \
pixel = PIXEL; \
for (l = LineCount; l != 0; l--, sp += GFX.PPL, Depth += GFX.PPL) \
{ \
int32_t z; \
for (z = Pixels - 2; z >= 0; z -= 2) \
{ \
if (GFX.Z1 > Depth [z]) \
{ \
sp [z >> 1] = FUNCTION(sp + z, pixel); \
Depth [z >> 1] = GFX.Z2; \
} \
} \
} \
} \
break; \
case H_FLIP | V_FLIP: \
StartPixel = 7 - StartPixel; \
/* fallthrough for V_FLIP-only case - above was a horizontal flip */ \
case V_FLIP: \
if((pixel = pCache[56 - StartLine + StartPixel])) \
{ \
pixel = PIXEL; \
for (l = LineCount; l != 0; l--, sp += GFX.PPL, Depth += GFX.PPL) \
{ \
int32_t z; \
for (z = Pixels - 2; z >= 0; z -= 2) \
{ \
if (GFX.Z1 > Depth [z]) \
{ \
sp [z >> 1] = FUNCTION(sp + z, pixel); \
Depth [z >> 1] = GFX.Z2; \
} \
} \
} \
} \
break; \
default: \
break; \
}
#endif
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