1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
|
#include "../copyright"
#ifndef _TILE_H_
#define _TILE_H_
#define TILE_PREAMBLE_VARS() \
uint32_t l; \
uint16_t *ScreenColors; \
uint8_t *pCache; \
uint32_t TileNumber; \
uint32_t TileAddr
#define TILE_PREAMBLE_CODE() \
TileAddr = BG.TileAddress + ((Tile & 0x3ff) << BG.TileShift); \
if ((Tile & 0x1ff) >= 256) \
TileAddr += BG.NameSelect; \
TileAddr &= 0xffff; \
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; \
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) \
{ \
NORMAL (Offset, bp, ScreenColors); \
NORMAL (Offset + N, bp + 4, ScreenColors); \
} \
break; \
case H_FLIP: \
bp = pCache + StartLine; \
for (l = LineCount; l != 0; l--, bp += 8, Offset += GFX.PPL) \
{ \
FLIPPED (Offset, bp + 4, ScreenColors); \
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) \
{ \
FLIPPED (Offset, bp + 4, ScreenColors); \
FLIPPED (Offset + N, bp, ScreenColors); \
} \
break; \
case V_FLIP: \
bp = pCache + 56 - StartLine; \
for (l = LineCount; l != 0; l--, bp -= 8, Offset += GFX.PPL) \
{ \
NORMAL (Offset, bp, ScreenColors); \
NORMAL (Offset + N, bp + 4, ScreenColors); \
} \
break; \
default: \
break; \
}
#define TILE_CLIP_PREAMBLE_VARS() \
uint32_t d1; \
uint32_t d2
#define TILE_CLIP_PREAMBLE_CODE() \
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_VARS() \
uint32_t dd
#define RENDER_CLIPPED_TILE_CODE(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) \
{ \
/* 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
|
