cc68a136 |
1 | // This is part of Pico Library\r |
2 | \r |
3 | // (c) Copyright 2004 Dave, All rights reserved.\r |
381eea9b |
4 | // (c) Copyright 2006-2008 notaz, All rights reserved.\r |
cc68a136 |
5 | // Free for non-commercial use.\r |
6 | \r |
7 | // For commercial use, separate licencing terms must be obtained.\r |
8 | \r |
e5fa9817 |
9 | /*\r |
10 | * The renderer has 4 modes now:\r |
11 | * - normal\r |
12 | * - shadow/hilight (s/h)\r |
13 | * - "sonic mode" for midline palette changes\r |
14 | * - accurate sprites (AS)\r |
15 | *\r |
16 | * AS and s/h both use upper bits for both priority and shadow/hilight flags.\r |
17 | * "sonic mode" is autodetected, shadow/hilight is enabled by emulated game.\r |
18 | * AS is enabled by user and takes priority over "sonic mode".\r |
19 | */\r |
cc68a136 |
20 | \r |
21 | #include "PicoInt.h"\r |
cc68a136 |
22 | \r |
602133e1 |
23 | int (*PicoScanBegin)(unsigned int num) = NULL;\r |
24 | int (*PicoScanEnd) (unsigned int num) = NULL;\r |
cc68a136 |
25 | \r |
ea8c405f |
26 | #if OVERRIDE_HIGHCOL\r |
27 | static unsigned char DefHighCol[8+320+8];\r |
28 | unsigned char *HighCol=DefHighCol;\r |
29 | #else\r |
cc68a136 |
30 | unsigned char HighCol[8+320+8];\r |
ea8c405f |
31 | #endif\r |
32 | unsigned short DefOutBuff[320*2];\r |
33 | void *DrawLineDest=DefOutBuff; // pointer to dest buffer where to draw this line to\r |
34 | \r |
cc68a136 |
35 | static int HighCacheA[41+1]; // caches for high layers\r |
36 | static int HighCacheB[41+1];\r |
37 | static int HighCacheS[80+1]; // and sprites\r |
38 | static int HighPreSpr[80*2+1]; // slightly preprocessed sprites\r |
381eea9b |
39 | \r |
602133e1 |
40 | int rendstatus = 0;\r |
41 | int Scanline = 0; // Scanline\r |
cc68a136 |
42 | \r |
43 | static int SpriteBlocks;\r |
602133e1 |
44 | static int skip_next_line=0;\r |
45 | \r |
cc68a136 |
46 | //unsigned short ppt[] = { 0x0f11, 0x0ff1, 0x01f1, 0x011f, 0x01ff, 0x0f1f, 0x0f0e, 0x0e7c };\r |
47 | \r |
e5fa9817 |
48 | static void (*DrawAllSpritesLoPri)(int *hcache, int maxwidth, int prio, int sh) = NULL;\r |
49 | static void (*DrawAllSpritesHiPri)(int *hcache, int maxwidth, int prio, int sh) = NULL;\r |
50 | \r |
cc68a136 |
51 | struct TileStrip\r |
52 | {\r |
53 | int nametab; // Position in VRAM of name table (for this tile line)\r |
6d7acf9e |
54 | int line; // Line number in pixels 0x000-0x3ff within the virtual tilemap\r |
cc68a136 |
55 | int hscroll; // Horizontal scroll value in pixels for the line\r |
56 | int xmask; // X-Mask (0x1f - 0x7f) for horizontal wraparound in the tilemap\r |
57 | int *hc; // cache for high tile codes and their positions\r |
58 | int cells; // cells (tiles) to draw (32 col mode doesn't need to update whole 320)\r |
59 | };\r |
60 | \r |
61 | // stuff available in asm:\r |
62 | #ifdef _ASM_DRAW_C\r |
63 | void DrawWindow(int tstart, int tend, int prio, int sh);\r |
64 | void BackFill(int reg7, int sh);\r |
e5fa9817 |
65 | void DrawSprite(int *sprite, int **hc, int sh, int as);\r |
7a7c6476 |
66 | void DrawTilesFromCache(int *hc, int sh, int rlim);\r |
e5fa9817 |
67 | void DrawSpritesFromCache(int *hc, int maxwidth, int prio, int sh);\r |
83c093a4 |
68 | void DrawLayer(int plane_sh, int *hcache, int cellskip, int maxcells);\r |
cc68a136 |
69 | void FinalizeLineBGR444(int sh);\r |
70 | void FinalizeLineRGB555(int sh);\r |
7b802576 |
71 | void *blockcpy(void *dst, const void *src, size_t n);\r |
cc68a136 |
72 | void blockcpy_or(void *dst, void *src, size_t n, int pat);\r |
73 | #else\r |
74 | // utility\r |
75 | void blockcpy_or(void *dst, void *src, size_t n, int pat)\r |
76 | {\r |
77 | unsigned char *pd = dst, *ps = src;\r |
78 | for (; n; n--)\r |
79 | *pd++ = (unsigned char) (*ps++ | pat);\r |
80 | }\r |
7b802576 |
81 | #define blockcpy memcpy\r |
cc68a136 |
82 | #endif\r |
83 | \r |
84 | \r |
b542be46 |
85 | #ifdef _ASM_DRAW_C_AMIPS\r |
8ef001cc |
86 | int TileNorm(int sx,int addr,int pal);\r |
87 | int TileFlip(int sx,int addr,int pal);\r |
88 | #else\r |
cc68a136 |
89 | static int TileNorm(int sx,int addr,int pal)\r |
90 | {\r |
91 | unsigned char *pd = HighCol+sx;\r |
92 | unsigned int pack=0; unsigned int t=0;\r |
93 | \r |
94 | pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
95 | if (pack)\r |
96 | {\r |
97 | t=pack&0x0000f000; if (t) pd[0]=(unsigned char)(pal|(t>>12));\r |
98 | t=pack&0x00000f00; if (t) pd[1]=(unsigned char)(pal|(t>> 8));\r |
99 | t=pack&0x000000f0; if (t) pd[2]=(unsigned char)(pal|(t>> 4));\r |
100 | t=pack&0x0000000f; if (t) pd[3]=(unsigned char)(pal|(t ));\r |
101 | t=pack&0xf0000000; if (t) pd[4]=(unsigned char)(pal|(t>>28));\r |
102 | t=pack&0x0f000000; if (t) pd[5]=(unsigned char)(pal|(t>>24));\r |
103 | t=pack&0x00f00000; if (t) pd[6]=(unsigned char)(pal|(t>>20));\r |
104 | t=pack&0x000f0000; if (t) pd[7]=(unsigned char)(pal|(t>>16));\r |
105 | return 0;\r |
106 | }\r |
107 | \r |
108 | return 1; // Tile blank\r |
109 | }\r |
110 | \r |
111 | static int TileFlip(int sx,int addr,int pal)\r |
112 | {\r |
113 | unsigned char *pd = HighCol+sx;\r |
114 | unsigned int pack=0; unsigned int t=0;\r |
115 | \r |
116 | pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
117 | if (pack)\r |
118 | {\r |
119 | t=pack&0x000f0000; if (t) pd[0]=(unsigned char)(pal|(t>>16));\r |
120 | t=pack&0x00f00000; if (t) pd[1]=(unsigned char)(pal|(t>>20));\r |
121 | t=pack&0x0f000000; if (t) pd[2]=(unsigned char)(pal|(t>>24));\r |
122 | t=pack&0xf0000000; if (t) pd[3]=(unsigned char)(pal|(t>>28));\r |
123 | t=pack&0x0000000f; if (t) pd[4]=(unsigned char)(pal|(t ));\r |
124 | t=pack&0x000000f0; if (t) pd[5]=(unsigned char)(pal|(t>> 4));\r |
125 | t=pack&0x00000f00; if (t) pd[6]=(unsigned char)(pal|(t>> 8));\r |
126 | t=pack&0x0000f000; if (t) pd[7]=(unsigned char)(pal|(t>>12));\r |
127 | return 0;\r |
128 | }\r |
129 | return 1; // Tile blank\r |
130 | }\r |
8ef001cc |
131 | #endif\r |
cc68a136 |
132 | \r |
133 | // tile renderers for hacky operator sprite support\r |
134 | #define sh_pix(x) \\r |
135 | if(!t); \\r |
136 | else if(t==0xe) pd[x]=(unsigned char)((pd[x]&0x3f)|0x80); /* hilight */ \\r |
e5fa9817 |
137 | else if(t==0xf) pd[x]=(unsigned char)( pd[x] |0xc0); /* shadow */ \\r |
cc68a136 |
138 | else pd[x]=(unsigned char)(pal|t)\r |
139 | \r |
140 | #ifndef _ASM_DRAW_C\r |
141 | static int TileNormSH(int sx,int addr,int pal)\r |
142 | {\r |
143 | unsigned int pack=0; unsigned int t=0;\r |
144 | unsigned char *pd = HighCol+sx;\r |
145 | \r |
146 | pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
147 | if (pack)\r |
148 | {\r |
149 | t=(pack&0x0000f000)>>12; sh_pix(0);\r |
150 | t=(pack&0x00000f00)>> 8; sh_pix(1);\r |
151 | t=(pack&0x000000f0)>> 4; sh_pix(2);\r |
152 | t=(pack&0x0000000f) ; sh_pix(3);\r |
153 | t=(pack&0xf0000000)>>28; sh_pix(4);\r |
154 | t=(pack&0x0f000000)>>24; sh_pix(5);\r |
155 | t=(pack&0x00f00000)>>20; sh_pix(6);\r |
156 | t=(pack&0x000f0000)>>16; sh_pix(7);\r |
157 | return 0;\r |
158 | }\r |
159 | \r |
160 | return 1; // Tile blank\r |
161 | }\r |
162 | \r |
163 | static int TileFlipSH(int sx,int addr,int pal)\r |
164 | {\r |
165 | unsigned int pack=0; unsigned int t=0;\r |
166 | unsigned char *pd = HighCol+sx;\r |
167 | \r |
168 | pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
169 | if (pack)\r |
170 | {\r |
171 | t=(pack&0x000f0000)>>16; sh_pix(0);\r |
172 | t=(pack&0x00f00000)>>20; sh_pix(1);\r |
173 | t=(pack&0x0f000000)>>24; sh_pix(2);\r |
174 | t=(pack&0xf0000000)>>28; sh_pix(3);\r |
175 | t=(pack&0x0000000f) ; sh_pix(4);\r |
176 | t=(pack&0x000000f0)>> 4; sh_pix(5);\r |
177 | t=(pack&0x00000f00)>> 8; sh_pix(6);\r |
178 | t=(pack&0x0000f000)>>12; sh_pix(7);\r |
179 | return 0;\r |
180 | }\r |
181 | return 1; // Tile blank\r |
182 | }\r |
183 | #endif\r |
184 | \r |
e5fa9817 |
185 | #define tilepixelAS(mask,index,shift) \\r |
186 | if (!(pd[index]&0xc0)) { t=pack&mask; if (t) pd[index]=(pal|(t>>shift)); }\r |
187 | \r |
188 | static int TileNormAS(int sx,int addr,int pal)\r |
cc68a136 |
189 | {\r |
cc68a136 |
190 | unsigned char *pd = HighCol+sx;\r |
e5fa9817 |
191 | unsigned int pack=0; unsigned int t=0;\r |
cc68a136 |
192 | \r |
193 | pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
194 | if (pack)\r |
195 | {\r |
e5fa9817 |
196 | tilepixelAS(0x0000f000, 0, 12);\r |
197 | tilepixelAS(0x00000f00, 1, 8);\r |
198 | tilepixelAS(0x000000f0, 2, 4);\r |
199 | tilepixelAS(0x0000000f, 3, 0);\r |
200 | tilepixelAS(0xf0000000, 4, 28);\r |
201 | tilepixelAS(0x0f000000, 5, 24);\r |
202 | tilepixelAS(0x00f00000, 6, 20);\r |
203 | tilepixelAS(0x000f0000, 7, 16);\r |
cc68a136 |
204 | return 0;\r |
205 | }\r |
206 | \r |
207 | return 1; // Tile blank\r |
208 | }\r |
6c254710 |
209 | \r |
e5fa9817 |
210 | static int TileFlipAS(int sx,int addr,int pal)\r |
cc68a136 |
211 | {\r |
cc68a136 |
212 | unsigned char *pd = HighCol+sx;\r |
e5fa9817 |
213 | unsigned int pack=0; unsigned int t=0;\r |
cc68a136 |
214 | \r |
215 | pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
216 | if (pack)\r |
217 | {\r |
e5fa9817 |
218 | tilepixelAS(0x000f0000, 0, 16);\r |
219 | tilepixelAS(0x00f00000, 1, 20);\r |
220 | tilepixelAS(0x0f000000, 2, 24);\r |
221 | tilepixelAS(0xf0000000, 3, 28);\r |
222 | tilepixelAS(0x0000000f, 4, 0);\r |
223 | tilepixelAS(0x000000f0, 5, 4);\r |
224 | tilepixelAS(0x00000f00, 6, 8);\r |
225 | tilepixelAS(0x0000f000, 7, 12);\r |
cc68a136 |
226 | return 0;\r |
227 | }\r |
228 | return 1; // Tile blank\r |
229 | }\r |
230 | \r |
e5fa9817 |
231 | // there is a problem with transparent hi pri tiles (on layer), it will clear high bits\r |
232 | // and sprite tiles will be drawn needlessly. Hopefully that won't happen much..\r |
233 | #define sh_pixAS(x) \\r |
234 | if(!t); \\r |
235 | else if(t==0xe) pd[x]=(unsigned char)((pd[x]&0x3f)|0x80); /* hilight */ \\r |
236 | else if(t==0xf) pd[x]=(unsigned char)( pd[x] |0xc0); /* shadow */ \\r |
237 | else if(!(pd[x]&0xc0)) pd[x]=(unsigned char)(pal|t)\r |
cc68a136 |
238 | \r |
e5fa9817 |
239 | static int TileNormSHAS(int sx,int addr,int pal)\r |
cc68a136 |
240 | {\r |
241 | unsigned int pack=0; unsigned int t=0;\r |
242 | unsigned char *pd = HighCol+sx;\r |
cc68a136 |
243 | \r |
244 | pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
245 | if (pack)\r |
246 | {\r |
e5fa9817 |
247 | t=(pack&0x0000f000)>>12; sh_pixAS(0);\r |
248 | t=(pack&0x00000f00)>> 8; sh_pixAS(1);\r |
249 | t=(pack&0x000000f0)>> 4; sh_pixAS(2);\r |
250 | t=(pack&0x0000000f) ; sh_pixAS(3);\r |
251 | t=(pack&0xf0000000)>>28; sh_pixAS(4);\r |
252 | t=(pack&0x0f000000)>>24; sh_pixAS(5);\r |
253 | t=(pack&0x00f00000)>>20; sh_pixAS(6);\r |
254 | t=(pack&0x000f0000)>>16; sh_pixAS(7);\r |
cc68a136 |
255 | return 0;\r |
256 | }\r |
257 | \r |
258 | return 1; // Tile blank\r |
259 | }\r |
260 | \r |
e5fa9817 |
261 | static int TileFlipSHAS(int sx,int addr,int pal)\r |
cc68a136 |
262 | {\r |
263 | unsigned int pack=0; unsigned int t=0;\r |
264 | unsigned char *pd = HighCol+sx;\r |
cc68a136 |
265 | \r |
266 | pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
267 | if (pack)\r |
268 | {\r |
e5fa9817 |
269 | t=(pack&0x000f0000)>>16; sh_pixAS(0);\r |
270 | t=(pack&0x00f00000)>>20; sh_pixAS(1);\r |
271 | t=(pack&0x0f000000)>>24; sh_pixAS(2);\r |
272 | t=(pack&0xf0000000)>>28; sh_pixAS(3);\r |
273 | t=(pack&0x0000000f) ; sh_pixAS(4);\r |
274 | t=(pack&0x000000f0)>> 4; sh_pixAS(5);\r |
275 | t=(pack&0x00000f00)>> 8; sh_pixAS(6);\r |
276 | t=(pack&0x0000f000)>>12; sh_pixAS(7);\r |
cc68a136 |
277 | return 0;\r |
278 | }\r |
279 | return 1; // Tile blank\r |
280 | }\r |
281 | \r |
e5fa9817 |
282 | \r |
cc68a136 |
283 | // --------------------------------------------\r |
284 | \r |
285 | #ifndef _ASM_DRAW_C\r |
83c093a4 |
286 | static void DrawStrip(struct TileStrip *ts, int plane_sh, int cellskip)\r |
cc68a136 |
287 | {\r |
83c093a4 |
288 | int tilex,dx,ty,code=0,addr=0,cells;\r |
cc68a136 |
289 | int oldcode=-1,blank=-1; // The tile we know is blank\r |
83c093a4 |
290 | int pal=0,sh;\r |
cc68a136 |
291 | \r |
292 | // Draw tiles across screen:\r |
83c093a4 |
293 | sh=(plane_sh<<5)&0x40;\r |
294 | tilex=((-ts->hscroll)>>3)+cellskip;\r |
cc68a136 |
295 | ty=(ts->line&7)<<1; // Y-Offset into tile\r |
296 | dx=((ts->hscroll-1)&7)+1;\r |
83c093a4 |
297 | cells = ts->cells - cellskip;\r |
cc68a136 |
298 | if(dx != 8) cells++; // have hscroll, need to draw 1 cell more\r |
83c093a4 |
299 | dx+=cellskip<<3;\r |
cc68a136 |
300 | \r |
83c093a4 |
301 | for (; cells > 0; dx+=8,tilex++,cells--)\r |
cc68a136 |
302 | {\r |
303 | int zero=0;\r |
304 | \r |
305 | code=Pico.vram[ts->nametab+(tilex&ts->xmask)];\r |
306 | if (code==blank) continue;\r |
307 | if (code>>15) { // high priority tile\r |
308 | int cval = code | (dx<<16) | (ty<<25);\r |
309 | if(code&0x1000) cval^=7<<26;\r |
310 | *ts->hc++ = cval; // cache it\r |
311 | continue;\r |
312 | }\r |
313 | \r |
314 | if (code!=oldcode) {\r |
315 | oldcode = code;\r |
316 | // Get tile address/2:\r |
317 | addr=(code&0x7ff)<<4;\r |
318 | addr+=ty;\r |
319 | if (code&0x1000) addr^=0xe; // Y-flip\r |
320 | \r |
83c093a4 |
321 | pal=((code>>9)&0x30)|sh;\r |
cc68a136 |
322 | }\r |
323 | \r |
324 | if (code&0x0800) zero=TileFlip(dx,addr,pal);\r |
325 | else zero=TileNorm(dx,addr,pal);\r |
326 | \r |
327 | if (zero) blank=code; // We know this tile is blank now\r |
328 | }\r |
329 | \r |
330 | // terminate the cache list\r |
331 | *ts->hc = 0;\r |
740da8c6 |
332 | // if oldcode wasn't changed, it means all layer is hi priority\r |
602133e1 |
333 | if (oldcode == -1) rendstatus |= PDRAW_PLANE_HI_PRIO;\r |
cc68a136 |
334 | }\r |
cc68a136 |
335 | \r |
336 | // this is messy\r |
83c093a4 |
337 | void DrawStripVSRam(struct TileStrip *ts, int plane_sh, int cellskip)\r |
cc68a136 |
338 | {\r |
83c093a4 |
339 | int tilex,dx,code=0,addr=0,cell=0;\r |
cc68a136 |
340 | int oldcode=-1,blank=-1; // The tile we know is blank\r |
341 | int pal=0,scan=Scanline;\r |
342 | \r |
343 | // Draw tiles across screen:\r |
344 | tilex=(-ts->hscroll)>>3;\r |
345 | dx=((ts->hscroll-1)&7)+1;\r |
83c093a4 |
346 | if(dx != 8) cell--; // have hscroll, start with negative cell\r |
347 | cell+=cellskip;\r |
348 | tilex+=cellskip;\r |
349 | dx+=cellskip<<3;\r |
cc68a136 |
350 | \r |
351 | for (; cell < ts->cells; dx+=8,tilex++,cell++)\r |
352 | {\r |
83c093a4 |
353 | int zero=0,nametabadd,ty;\r |
cc68a136 |
354 | \r |
83c093a4 |
355 | //if((cell&1)==0)\r |
356 | {\r |
cc68a136 |
357 | int line,vscroll;\r |
83c093a4 |
358 | vscroll=Pico.vsram[(plane_sh&1)+(cell&~1)];\r |
cc68a136 |
359 | \r |
360 | // Find the line in the name table\r |
361 | line=(vscroll+scan)&ts->line&0xffff; // ts->line is really ymask ..\r |
362 | nametabadd=(line>>3)<<(ts->line>>24); // .. and shift[width]\r |
363 | ty=(line&7)<<1; // Y-Offset into tile\r |
364 | }\r |
365 | \r |
366 | code=Pico.vram[ts->nametab+nametabadd+(tilex&ts->xmask)];\r |
367 | if (code==blank) continue;\r |
368 | if (code>>15) { // high priority tile\r |
369 | int cval = code | (dx<<16) | (ty<<25);\r |
370 | if(code&0x1000) cval^=7<<26;\r |
371 | *ts->hc++ = cval; // cache it\r |
372 | continue;\r |
373 | }\r |
374 | \r |
375 | if (code!=oldcode) {\r |
376 | oldcode = code;\r |
377 | // Get tile address/2:\r |
378 | addr=(code&0x7ff)<<4;\r |
379 | if (code&0x1000) addr+=14-ty; else addr+=ty; // Y-flip\r |
380 | \r |
83c093a4 |
381 | pal=((code>>9)&0x30)|((plane_sh<<5)&0x40);\r |
cc68a136 |
382 | }\r |
383 | \r |
384 | if (code&0x0800) zero=TileFlip(dx,addr,pal);\r |
385 | else zero=TileNorm(dx,addr,pal);\r |
386 | \r |
387 | if (zero) blank=code; // We know this tile is blank now\r |
388 | }\r |
389 | \r |
390 | // terminate the cache list\r |
391 | *ts->hc = 0;\r |
602133e1 |
392 | if (oldcode == -1) rendstatus |= PDRAW_PLANE_HI_PRIO;\r |
cc68a136 |
393 | }\r |
6d7acf9e |
394 | #endif\r |
cc68a136 |
395 | \r |
396 | #ifndef _ASM_DRAW_C\r |
397 | static\r |
398 | #endif\r |
399 | void DrawStripInterlace(struct TileStrip *ts)\r |
400 | {\r |
401 | int tilex=0,dx=0,ty=0,code=0,addr=0,cells;\r |
402 | int oldcode=-1,blank=-1; // The tile we know is blank\r |
403 | int pal=0;\r |
404 | \r |
405 | // Draw tiles across screen:\r |
406 | tilex=(-ts->hscroll)>>3;\r |
407 | ty=(ts->line&15)<<1; // Y-Offset into tile\r |
408 | dx=((ts->hscroll-1)&7)+1;\r |
409 | cells = ts->cells;\r |
410 | if(dx != 8) cells++; // have hscroll, need to draw 1 cell more\r |
411 | \r |
412 | for (; cells; dx+=8,tilex++,cells--)\r |
413 | {\r |
414 | int zero=0;\r |
415 | \r |
416 | code=Pico.vram[ts->nametab+(tilex&ts->xmask)];\r |
417 | if (code==blank) continue;\r |
418 | if (code>>15) { // high priority tile\r |
419 | int cval = (code&0xfc00) | (dx<<16) | (ty<<25);\r |
420 | cval|=(code&0x3ff)<<1;\r |
421 | if(code&0x1000) cval^=0xf<<26;\r |
422 | *ts->hc++ = cval; // cache it\r |
423 | continue;\r |
424 | }\r |
425 | \r |
426 | if (code!=oldcode) {\r |
427 | oldcode = code;\r |
428 | // Get tile address/2:\r |
429 | addr=(code&0x7ff)<<5;\r |
430 | if (code&0x1000) addr+=30-ty; else addr+=ty; // Y-flip\r |
431 | \r |
432 | // pal=Pico.cram+((code>>9)&0x30);\r |
433 | pal=((code>>9)&0x30);\r |
434 | }\r |
435 | \r |
436 | if (code&0x0800) zero=TileFlip(dx,addr,pal);\r |
437 | else zero=TileNorm(dx,addr,pal);\r |
438 | \r |
439 | if (zero) blank=code; // We know this tile is blank now\r |
440 | }\r |
441 | \r |
442 | // terminate the cache list\r |
443 | *ts->hc = 0;\r |
444 | }\r |
445 | \r |
446 | // --------------------------------------------\r |
447 | \r |
448 | #ifndef _ASM_DRAW_C\r |
83c093a4 |
449 | static void DrawLayer(int plane_sh, int *hcache, int cellskip, int maxcells)\r |
cc68a136 |
450 | {\r |
451 | struct PicoVideo *pvid=&Pico.video;\r |
452 | const char shift[4]={5,6,5,7}; // 32,64 or 128 sized tilemaps (2 is invalid)\r |
453 | struct TileStrip ts;\r |
454 | int width, height, ymask;\r |
455 | int vscroll, htab;\r |
456 | \r |
457 | ts.hc=hcache;\r |
458 | ts.cells=maxcells;\r |
459 | \r |
460 | // Work out the TileStrip to draw\r |
461 | \r |
462 | // Work out the name table size: 32 64 or 128 tiles (0-3)\r |
463 | width=pvid->reg[16];\r |
464 | height=(width>>4)&3; width&=3;\r |
465 | \r |
466 | ts.xmask=(1<<shift[width])-1; // X Mask in tiles (0x1f-0x7f)\r |
467 | ymask=(height<<8)|0xff; // Y Mask in pixels\r |
468 | if(width == 1) ymask&=0x1ff;\r |
469 | else if(width>1) ymask =0x0ff;\r |
470 | \r |
471 | // Find name table:\r |
83c093a4 |
472 | if (plane_sh&1) ts.nametab=(pvid->reg[4]&0x07)<<12; // B\r |
473 | else ts.nametab=(pvid->reg[2]&0x38)<< 9; // A\r |
cc68a136 |
474 | \r |
475 | htab=pvid->reg[13]<<9; // Horizontal scroll table address\r |
476 | if ( pvid->reg[11]&2) htab+=Scanline<<1; // Offset by line\r |
477 | if ((pvid->reg[11]&1)==0) htab&=~0xf; // Offset by tile\r |
83c093a4 |
478 | htab+=plane_sh&1; // A or B\r |
cc68a136 |
479 | \r |
480 | // Get horizontal scroll value, will be masked later\r |
481 | ts.hscroll=Pico.vram[htab&0x7fff];\r |
482 | \r |
483 | if((pvid->reg[12]&6) == 6) {\r |
484 | // interlace mode 2\r |
83c093a4 |
485 | vscroll=Pico.vsram[plane_sh&1]; // Get vertical scroll value\r |
cc68a136 |
486 | \r |
487 | // Find the line in the name table\r |
488 | ts.line=(vscroll+(Scanline<<1))&((ymask<<1)|1);\r |
489 | ts.nametab+=(ts.line>>4)<<shift[width];\r |
490 | \r |
491 | DrawStripInterlace(&ts);\r |
492 | } else if( pvid->reg[11]&4) {\r |
493 | // shit, we have 2-cell column based vscroll\r |
494 | // luckily this doesn't happen too often\r |
495 | ts.line=ymask|(shift[width]<<24); // save some stuff instead of line\r |
83c093a4 |
496 | DrawStripVSRam(&ts, plane_sh, cellskip);\r |
cc68a136 |
497 | } else {\r |
83c093a4 |
498 | vscroll=Pico.vsram[plane_sh&1]; // Get vertical scroll value\r |
cc68a136 |
499 | \r |
500 | // Find the line in the name table\r |
501 | ts.line=(vscroll+Scanline)&ymask;\r |
502 | ts.nametab+=(ts.line>>3)<<shift[width];\r |
503 | \r |
83c093a4 |
504 | DrawStrip(&ts, plane_sh, cellskip);\r |
cc68a136 |
505 | }\r |
506 | }\r |
507 | \r |
508 | \r |
509 | // --------------------------------------------\r |
510 | \r |
511 | // tstart & tend are tile pair numbers\r |
512 | static void DrawWindow(int tstart, int tend, int prio, int sh) // int *hcache\r |
513 | {\r |
514 | struct PicoVideo *pvid=&Pico.video;\r |
515 | int tilex=0,ty=0,nametab,code=0;\r |
516 | int blank=-1; // The tile we know is blank\r |
517 | \r |
518 | // Find name table line:\r |
519 | if (pvid->reg[12]&1)\r |
520 | {\r |
521 | nametab=(pvid->reg[3]&0x3c)<<9; // 40-cell mode\r |
522 | nametab+=(Scanline>>3)<<6;\r |
523 | }\r |
524 | else\r |
525 | {\r |
526 | nametab=(pvid->reg[3]&0x3e)<<9; // 32-cell mode\r |
527 | nametab+=(Scanline>>3)<<5;\r |
528 | }\r |
529 | \r |
530 | tilex=tstart<<1;\r |
531 | tend<<=1;\r |
532 | \r |
533 | ty=(Scanline&7)<<1; // Y-Offset into tile\r |
534 | \r |
602133e1 |
535 | if (!(rendstatus & PDRAW_WND_DIFF_PRIO)) {\r |
cc68a136 |
536 | // check the first tile code\r |
537 | code=Pico.vram[nametab+tilex];\r |
538 | // if the whole window uses same priority (what is often the case), we may be able to skip this field\r |
602133e1 |
539 | if ((code>>15) != prio) return;\r |
cc68a136 |
540 | }\r |
541 | \r |
542 | // Draw tiles across screen:\r |
81fda4e8 |
543 | if (!sh)\r |
cc68a136 |
544 | {\r |
81fda4e8 |
545 | for (; tilex < tend; tilex++)\r |
546 | {\r |
547 | int addr=0,zero=0;\r |
548 | int pal;\r |
549 | \r |
550 | code=Pico.vram[nametab+tilex];\r |
602133e1 |
551 | if (code==blank) continue;\r |
552 | if ((code>>15) != prio) {\r |
553 | rendstatus |= PDRAW_WND_DIFF_PRIO;\r |
81fda4e8 |
554 | continue;\r |
555 | }\r |
cc68a136 |
556 | \r |
81fda4e8 |
557 | pal=((code>>9)&0x30);\r |
558 | \r |
559 | // Get tile address/2:\r |
560 | addr=(code&0x7ff)<<4;\r |
561 | if (code&0x1000) addr+=14-ty; else addr+=ty; // Y-flip\r |
562 | \r |
563 | if (code&0x0800) zero=TileFlip(8+(tilex<<3),addr,pal);\r |
564 | else zero=TileNorm(8+(tilex<<3),addr,pal);\r |
565 | \r |
566 | if (zero) blank=code; // We know this tile is blank now\r |
cc68a136 |
567 | }\r |
81fda4e8 |
568 | }\r |
569 | else\r |
570 | {\r |
571 | for (; tilex < tend; tilex++)\r |
572 | {\r |
573 | int addr=0,zero=0;\r |
574 | int pal, tmp, *zb;\r |
575 | \r |
576 | code=Pico.vram[nametab+tilex];\r |
577 | if(code==blank) continue;\r |
578 | if((code>>15) != prio) {\r |
602133e1 |
579 | rendstatus |= PDRAW_WND_DIFF_PRIO;\r |
81fda4e8 |
580 | continue;\r |
581 | }\r |
cc68a136 |
582 | \r |
81fda4e8 |
583 | pal=((code>>9)&0x30);\r |
cc68a136 |
584 | \r |
81fda4e8 |
585 | zb = (int *)(HighCol+8+(tilex<<3));\r |
cc68a136 |
586 | if(prio) {\r |
587 | tmp = *zb;\r |
588 | if(!(tmp&0x00000080)) tmp&=~0x000000c0; if(!(tmp&0x00008000)) tmp&=~0x0000c000;\r |
589 | if(!(tmp&0x00800000)) tmp&=~0x00c00000; if(!(tmp&0x80000000)) tmp&=~0xc0000000;\r |
590 | *zb++=tmp; tmp = *zb;\r |
591 | if(!(tmp&0x00000080)) tmp&=~0x000000c0; if(!(tmp&0x00008000)) tmp&=~0x0000c000;\r |
592 | if(!(tmp&0x00800000)) tmp&=~0x00c00000; if(!(tmp&0x80000000)) tmp&=~0xc0000000;\r |
593 | *zb++=tmp;\r |
594 | } else {\r |
595 | pal |= 0x40;\r |
596 | }\r |
cc68a136 |
597 | \r |
81fda4e8 |
598 | // Get tile address/2:\r |
599 | addr=(code&0x7ff)<<4;\r |
600 | if (code&0x1000) addr+=14-ty; else addr+=ty; // Y-flip\r |
cc68a136 |
601 | \r |
81fda4e8 |
602 | if (code&0x0800) zero=TileFlip(8+(tilex<<3),addr,pal);\r |
603 | else zero=TileNorm(8+(tilex<<3),addr,pal);\r |
cc68a136 |
604 | \r |
81fda4e8 |
605 | if (zero) blank=code; // We know this tile is blank now\r |
606 | }\r |
cc68a136 |
607 | }\r |
cc68a136 |
608 | }\r |
609 | \r |
610 | // --------------------------------------------\r |
611 | \r |
81fda4e8 |
612 | static void DrawTilesFromCacheShPrep(void)\r |
613 | {\r |
602133e1 |
614 | // as some layer has covered whole line with hi priority tiles,\r |
615 | // we can process whole line and then act as if sh/hi mode was off.\r |
616 | int c = 320/4, *zb = (int *)(HighCol+8);\r |
617 | rendstatus |= PDRAW_SHHI_DONE;\r |
618 | while (c--)\r |
81fda4e8 |
619 | {\r |
602133e1 |
620 | int tmp = *zb;\r |
621 | if (!(tmp & 0x80808080)) *zb=tmp&0x3f3f3f3f;\r |
622 | else {\r |
623 | if(!(tmp&0x00000080)) tmp&=~0x000000c0; if(!(tmp&0x00008000)) tmp&=~0x0000c000;\r |
624 | if(!(tmp&0x00800000)) tmp&=~0x00c00000; if(!(tmp&0x80000000)) tmp&=~0xc0000000;\r |
625 | *zb=tmp;\r |
81fda4e8 |
626 | }\r |
602133e1 |
627 | zb++;\r |
81fda4e8 |
628 | }\r |
629 | }\r |
630 | \r |
7a7c6476 |
631 | static void DrawTilesFromCache(int *hc, int sh, int rlim)\r |
cc68a136 |
632 | {\r |
740da8c6 |
633 | int code, addr, dx;\r |
cc68a136 |
634 | int pal;\r |
cc68a136 |
635 | \r |
636 | // *ts->hc++ = code | (dx<<16) | (ty<<25); // cache it\r |
637 | \r |
602133e1 |
638 | if (sh && (rendstatus & (PDRAW_SHHI_DONE|PDRAW_PLANE_HI_PRIO)))\r |
740da8c6 |
639 | {\r |
602133e1 |
640 | if (!(rendstatus & PDRAW_SHHI_DONE))\r |
641 | DrawTilesFromCacheShPrep();\r |
740da8c6 |
642 | sh = 0;\r |
643 | }\r |
cc68a136 |
644 | \r |
81fda4e8 |
645 | if (!sh)\r |
740da8c6 |
646 | {\r |
81fda4e8 |
647 | short blank=-1; // The tile we know is blank\r |
7a7c6476 |
648 | while ((code=*hc++)) {\r |
81fda4e8 |
649 | int zero;\r |
650 | if((short)code == blank) continue;\r |
740da8c6 |
651 | // Get tile address/2:\r |
652 | addr=(code&0x7ff)<<4;\r |
653 | addr+=(unsigned int)code>>25; // y offset into tile\r |
654 | dx=(code>>16)&0x1ff;\r |
740da8c6 |
655 | \r |
656 | pal=((code>>9)&0x30);\r |
7a7c6476 |
657 | if (rlim-dx < 0) goto last_cut_tile;\r |
740da8c6 |
658 | \r |
81fda4e8 |
659 | if (code&0x0800) zero=TileFlip(dx,addr,pal);\r |
660 | else zero=TileNorm(dx,addr,pal);\r |
661 | \r |
662 | if (zero) blank=(short)code;\r |
cc68a136 |
663 | }\r |
740da8c6 |
664 | }\r |
665 | else\r |
666 | {\r |
7a7c6476 |
667 | while ((code=*hc++)) {\r |
81fda4e8 |
668 | unsigned char *zb;\r |
740da8c6 |
669 | // Get tile address/2:\r |
670 | addr=(code&0x7ff)<<4;\r |
671 | addr+=(unsigned int)code>>25; // y offset into tile\r |
672 | dx=(code>>16)&0x1ff;\r |
81fda4e8 |
673 | zb = HighCol+dx;\r |
674 | if(!(*zb&0x80)) *zb&=0x3f; zb++; if(!(*zb&0x80)) *zb&=0x3f; zb++;\r |
675 | if(!(*zb&0x80)) *zb&=0x3f; zb++; if(!(*zb&0x80)) *zb&=0x3f; zb++;\r |
676 | if(!(*zb&0x80)) *zb&=0x3f; zb++; if(!(*zb&0x80)) *zb&=0x3f; zb++;\r |
677 | if(!(*zb&0x80)) *zb&=0x3f; zb++; if(!(*zb&0x80)) *zb&=0x3f; zb++;\r |
cc68a136 |
678 | \r |
740da8c6 |
679 | pal=((code>>9)&0x30);\r |
7a7c6476 |
680 | if (rlim-dx < 0) goto last_cut_tile;\r |
cc68a136 |
681 | \r |
81fda4e8 |
682 | if (code&0x0800) TileFlip(dx,addr,pal);\r |
683 | else TileNorm(dx,addr,pal);\r |
7a7c6476 |
684 | }\r |
685 | }\r |
686 | return;\r |
687 | \r |
688 | last_cut_tile:\r |
689 | {\r |
690 | unsigned int t, pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
691 | unsigned char *pd = HighCol+dx;\r |
692 | if (!pack) return;\r |
693 | if (code&0x0800)\r |
694 | {\r |
695 | switch (rlim-dx+8)\r |
696 | {\r |
697 | case 7: t=pack&0x00000f00; if (t) pd[6]=(unsigned char)(pal|(t>> 8)); // "break" is left out intentionally\r |
698 | case 6: t=pack&0x000000f0; if (t) pd[5]=(unsigned char)(pal|(t>> 4));\r |
699 | case 5: t=pack&0x0000000f; if (t) pd[4]=(unsigned char)(pal|(t ));\r |
700 | case 4: t=pack&0xf0000000; if (t) pd[3]=(unsigned char)(pal|(t>>28));\r |
701 | case 3: t=pack&0x0f000000; if (t) pd[2]=(unsigned char)(pal|(t>>24));\r |
702 | case 2: t=pack&0x00f00000; if (t) pd[1]=(unsigned char)(pal|(t>>20));\r |
703 | case 1: t=pack&0x000f0000; if (t) pd[0]=(unsigned char)(pal|(t>>16));\r |
704 | default: break;\r |
705 | }\r |
706 | }\r |
707 | else\r |
708 | {\r |
709 | switch (rlim-dx+8)\r |
710 | {\r |
711 | case 7: t=pack&0x00f00000; if (t) pd[6]=(unsigned char)(pal|(t>>20));\r |
712 | case 6: t=pack&0x0f000000; if (t) pd[5]=(unsigned char)(pal|(t>>24));\r |
713 | case 5: t=pack&0xf0000000; if (t) pd[4]=(unsigned char)(pal|(t>>28));\r |
714 | case 4: t=pack&0x0000000f; if (t) pd[3]=(unsigned char)(pal|(t ));\r |
715 | case 3: t=pack&0x000000f0; if (t) pd[2]=(unsigned char)(pal|(t>> 4));\r |
716 | case 2: t=pack&0x00000f00; if (t) pd[1]=(unsigned char)(pal|(t>> 8));\r |
717 | case 1: t=pack&0x0000f000; if (t) pd[0]=(unsigned char)(pal|(t>>12));\r |
718 | default: break;\r |
719 | }\r |
740da8c6 |
720 | }\r |
cc68a136 |
721 | }\r |
722 | }\r |
723 | \r |
724 | // --------------------------------------------\r |
725 | \r |
726 | // Index + 0 : hhhhvvvv ab--hhvv yyyyyyyy yyyyyyyy // a: offscreen h, b: offs. v, h: horiz. size\r |
727 | // Index + 4 : xxxxxxxx xxxxxxxx pccvhnnn nnnnnnnn // x: x coord + 8\r |
728 | \r |
e5fa9817 |
729 | static void DrawSprite(int *sprite, int **hc, int sh, int as)\r |
cc68a136 |
730 | {\r |
731 | int width=0,height=0;\r |
732 | int row=0,code=0;\r |
733 | int pal;\r |
734 | int tile=0,delta=0;\r |
735 | int sx, sy;\r |
736 | int (*fTileFunc)(int sx,int addr,int pal);\r |
737 | \r |
738 | // parse the sprite data\r |
739 | sy=sprite[0];\r |
740 | code=sprite[1];\r |
741 | sx=code>>16; // X\r |
742 | width=sy>>28;\r |
743 | height=(sy>>24)&7; // Width and height in tiles\r |
744 | sy=(sy<<16)>>16; // Y\r |
745 | \r |
746 | row=Scanline-sy; // Row of the sprite we are on\r |
747 | \r |
748 | if (code&0x1000) row=(height<<3)-1-row; // Flip Y\r |
749 | \r |
750 | tile=code&0x7ff; // Tile number\r |
751 | tile+=row>>3; // Tile number increases going down\r |
752 | delta=height; // Delta to increase tile by going right\r |
753 | if (code&0x0800) { tile+=delta*(width-1); delta=-delta; } // Flip X\r |
754 | \r |
755 | tile<<=4; tile+=(row&7)<<1; // Tile address\r |
756 | \r |
e5fa9817 |
757 | if (code&0x8000) { // high priority - cache it\r |
cc68a136 |
758 | *(*hc)++ = (tile<<16)|((code&0x0800)<<5)|((sx<<6)&0x0000ffc0)|((code>>9)&0x30)|((sprite[0]>>16)&0xf);\r |
e5fa9817 |
759 | // we need all for accurate sprites, cached will be used to recover ones overwritten by high layer\r |
760 | if (!as) return;\r |
cc68a136 |
761 | }\r |
cc68a136 |
762 | \r |
cc68a136 |
763 | delta<<=4; // Delta of address\r |
e5fa9817 |
764 | pal=((code>>9)&0x30)|((sh|as)<<6);\r |
765 | \r |
766 | if (sh && (code&0x6000) == 0x6000) {\r |
767 | if(code&0x0800) fTileFunc=TileFlipSH;\r |
768 | else fTileFunc=TileNormSH;\r |
769 | } else {\r |
770 | if(code&0x0800) fTileFunc=TileFlip;\r |
771 | else fTileFunc=TileNorm;\r |
cc68a136 |
772 | }\r |
773 | \r |
774 | for (; width; width--,sx+=8,tile+=delta)\r |
775 | {\r |
776 | if(sx<=0) continue;\r |
777 | if(sx>=328) break; // Offscreen\r |
778 | \r |
779 | tile&=0x7fff; // Clip tile address\r |
e5fa9817 |
780 | fTileFunc(sx,tile,pal);\r |
cc68a136 |
781 | }\r |
782 | }\r |
e5fa9817 |
783 | #endif\r |
cc68a136 |
784 | \r |
785 | static void DrawSpriteInterlace(unsigned int *sprite)\r |
786 | {\r |
787 | int width=0,height=0;\r |
788 | int row=0,code=0;\r |
789 | int pal;\r |
790 | int tile=0,delta=0;\r |
791 | int sx, sy;\r |
792 | \r |
793 | // parse the sprite data\r |
794 | sy=sprite[0];\r |
795 | height=sy>>24;\r |
796 | sy=(sy&0x3ff)-0x100; // Y\r |
797 | width=(height>>2)&3; height&=3;\r |
798 | width++; height++; // Width and height in tiles\r |
799 | \r |
800 | row=(Scanline<<1)-sy; // Row of the sprite we are on\r |
801 | \r |
802 | code=sprite[1];\r |
803 | sx=((code>>16)&0x1ff)-0x78; // X\r |
804 | \r |
805 | if (code&0x1000) row^=(16<<height)-1; // Flip Y\r |
806 | \r |
807 | tile=code&0x3ff; // Tile number\r |
808 | tile+=row>>4; // Tile number increases going down\r |
809 | delta=height; // Delta to increase tile by going right\r |
810 | if (code&0x0800) { tile+=delta*(width-1); delta=-delta; } // Flip X\r |
811 | \r |
812 | tile<<=5; tile+=(row&15)<<1; // Tile address\r |
813 | \r |
814 | delta<<=5; // Delta of address\r |
815 | pal=((code>>9)&0x30); // Get palette pointer\r |
816 | \r |
817 | for (; width; width--,sx+=8,tile+=delta)\r |
818 | {\r |
819 | if(sx<=0) continue;\r |
820 | if(sx>=328) break; // Offscreen\r |
821 | \r |
822 | tile&=0x7fff; // Clip tile address\r |
823 | if (code&0x0800) TileFlip(sx,tile,pal);\r |
824 | else TileNorm(sx,tile,pal);\r |
825 | }\r |
826 | }\r |
827 | \r |
828 | \r |
e5fa9817 |
829 | static void DrawAllSpritesInterlace(int *hcache, int maxwidth, int pri, int sh)\r |
cc68a136 |
830 | {\r |
831 | struct PicoVideo *pvid=&Pico.video;\r |
832 | int i,u,table,link=0,sline=Scanline<<1;\r |
833 | unsigned int *sprites[80]; // Sprite index\r |
834 | \r |
835 | table=pvid->reg[5]&0x7f;\r |
836 | if (pvid->reg[12]&1) table&=0x7e; // Lowest bit 0 in 40-cell mode\r |
837 | table<<=8; // Get sprite table address/2\r |
838 | \r |
839 | for (i=u=0; u < 80 && i < 21; u++)\r |
840 | {\r |
841 | unsigned int *sprite;\r |
842 | int code, sx, sy, height;\r |
843 | \r |
844 | sprite=(unsigned int *)(Pico.vram+((table+(link<<2))&0x7ffc)); // Find sprite\r |
845 | \r |
846 | // get sprite info\r |
847 | code = sprite[0];\r |
848 | sx = sprite[1];\r |
849 | if(((sx>>15)&1) != pri) goto nextsprite; // wrong priority sprite\r |
850 | \r |
851 | // check if it is on this line\r |
852 | sy = (code&0x3ff)-0x100;\r |
853 | height = (((code>>24)&3)+1)<<4;\r |
854 | if(sline < sy || sline >= sy+height) goto nextsprite; // no\r |
855 | \r |
856 | // check if sprite is not hidden offscreen\r |
857 | sx = (sx>>16)&0x1ff;\r |
858 | sx -= 0x78; // Get X coordinate + 8\r |
859 | if(sx <= -8*3 || sx >= maxwidth) goto nextsprite;\r |
860 | \r |
861 | // sprite is good, save it's pointer\r |
862 | sprites[i++]=sprite;\r |
863 | \r |
864 | nextsprite:\r |
865 | // Find next sprite\r |
866 | link=(code>>16)&0x7f;\r |
867 | if(!link) break; // End of sprites\r |
868 | }\r |
869 | \r |
870 | // Go through sprites backwards:\r |
871 | for (i-- ;i>=0; i--)\r |
872 | DrawSpriteInterlace(sprites[i]);\r |
873 | }\r |
874 | \r |
875 | \r |
876 | #ifndef _ASM_DRAW_C\r |
e5fa9817 |
877 | static void DrawSpritesFromCache(int *hc, int maxwidth, int prio, int sh)\r |
cc68a136 |
878 | {\r |
879 | int code, tile, sx, delta, width;\r |
880 | int pal;\r |
881 | int (*fTileFunc)(int sx,int addr,int pal);\r |
882 | \r |
883 | // *(*hc)++ = (tile<<16)|((code&0x0800)<<5)|((sx<<6)&0x0000ffc0)|((code>>9)&0x30)|((sprite[0]>>24)&0xf);\r |
884 | \r |
885 | while((code=*hc++)) {\r |
886 | pal=(code&0x30);\r |
887 | delta=code&0xf;\r |
888 | width=delta>>2; delta&=3;\r |
889 | width++; delta++; // Width and height in tiles\r |
890 | if (code&0x10000) delta=-delta; // Flip X\r |
891 | delta<<=4;\r |
892 | tile=((unsigned int)code>>17)<<1;\r |
893 | sx=(code<<16)>>22; // sx can be negative (start offscreen), so sign extend\r |
894 | \r |
895 | if(sh && pal == 0x30) { //\r |
896 | if(code&0x10000) fTileFunc=TileFlipSH;\r |
897 | else fTileFunc=TileNormSH;\r |
898 | } else {\r |
899 | if(code&0x10000) fTileFunc=TileFlip;\r |
900 | else fTileFunc=TileNorm;\r |
901 | }\r |
902 | \r |
903 | for (; width; width--,sx+=8,tile+=delta)\r |
904 | {\r |
905 | if(sx<=0) continue;\r |
906 | if(sx>=328) break; // Offscreen\r |
907 | \r |
908 | tile&=0x7fff; // Clip tile address\r |
909 | fTileFunc(sx,tile,pal);\r |
910 | }\r |
911 | }\r |
912 | }\r |
913 | #endif\r |
914 | \r |
e5fa9817 |
915 | static void DrawSpritesFromCacheAS(int *hc, int maxwidth, int prio, int sh)\r |
916 | {\r |
917 | int code, tile, sx, delta, width;\r |
918 | int pal;\r |
919 | int (*fTileFunc)(int sx,int addr,int pal);\r |
920 | \r |
921 | // *(*hc)++ = (tile<<16)|((code&0x0800)<<5)|((sx<<6)&0x0000ffc0)|((code>>9)&0x30)|((sprite[0]>>24)&0xf);\r |
922 | \r |
923 | while((code=*hc++)) {\r |
924 | pal=(code&0x30);\r |
925 | delta=code&0xf;\r |
926 | width=delta>>2; delta&=3;\r |
927 | width++; delta++; // Width and height in tiles\r |
928 | if (code&0x10000) delta=-delta; // Flip X\r |
929 | delta<<=4;\r |
930 | tile=((unsigned int)code>>17)<<1;\r |
931 | sx=(code<<16)>>22; // sx can be negative (start offscreen), so sign extend\r |
932 | \r |
933 | if(sh && pal == 0x30) { //\r |
934 | if(code&0x10000) fTileFunc=TileFlipSHAS;\r |
935 | else fTileFunc=TileNormSHAS;\r |
936 | } else {\r |
937 | if(code&0x10000) fTileFunc=TileFlipAS;\r |
938 | else fTileFunc=TileNormAS;\r |
939 | }\r |
940 | \r |
941 | for (; width; width--,sx+=8,tile+=delta)\r |
942 | {\r |
943 | if(sx<=0) continue;\r |
944 | if(sx>=328) break; // Offscreen\r |
945 | \r |
946 | tile&=0x7fff; // Clip tile address\r |
947 | fTileFunc(sx,tile,pal);\r |
948 | }\r |
949 | }\r |
950 | }\r |
951 | \r |
cc68a136 |
952 | \r |
953 | // Index + 0 : ----hhvv -lllllll -------y yyyyyyyy\r |
954 | // Index + 4 : -------x xxxxxxxx pccvhnnn nnnnnnnn\r |
955 | // v\r |
956 | // Index + 0 : hhhhvvvv ab--hhvv yyyyyyyy yyyyyyyy // a: offscreen h, b: offs. v, h: horiz. size\r |
957 | // Index + 4 : xxxxxxxx xxxxxxxx pccvhnnn nnnnnnnn // x: x coord + 8\r |
958 | \r |
959 | static void PrepareSprites(int full)\r |
960 | {\r |
961 | struct PicoVideo *pvid=&Pico.video;\r |
962 | int u=0,link=0,sblocks=0;\r |
963 | int table=0;\r |
964 | int *pd = HighPreSpr;\r |
965 | \r |
966 | table=pvid->reg[5]&0x7f;\r |
967 | if (pvid->reg[12]&1) table&=0x7e; // Lowest bit 0 in 40-cell mode\r |
968 | table<<=8; // Get sprite table address/2\r |
969 | \r |
970 | if (!full)\r |
971 | {\r |
972 | int pack;\r |
973 | // updates: tilecode, sx\r |
974 | for (u=0; u < 80 && (pack = *pd); u++, pd+=2)\r |
975 | {\r |
976 | unsigned int *sprite;\r |
977 | int code, code2, sx, sy, skip=0;\r |
978 | \r |
979 | sprite=(unsigned int *)(Pico.vram+((table+(link<<2))&0x7ffc)); // Find sprite\r |
980 | \r |
981 | // parse sprite info\r |
982 | code = sprite[0];\r |
983 | code2 = sprite[1];\r |
984 | code2 &= ~0xfe000000;\r |
985 | code2 -= 0x00780000; // Get X coordinate + 8 in upper 16 bits\r |
986 | sx = code2>>16;\r |
987 | \r |
988 | if((sx <= 8-((pack>>28)<<3) && sx >= -0x76) || sx >= 328) skip=1<<23;\r |
989 | else if ((sy = (pack<<16)>>16) < 240 && sy > -32) {\r |
990 | int sbl = (2<<(pack>>28))-1;\r |
991 | sblocks |= sbl<<(sy>>3);\r |
992 | }\r |
993 | \r |
994 | *pd = (pack&~(1<<23))|skip;\r |
995 | *(pd+1) = code2;\r |
996 | \r |
997 | // Find next sprite\r |
998 | link=(code>>16)&0x7f;\r |
999 | if(!link) break; // End of sprites\r |
1000 | }\r |
1001 | SpriteBlocks |= sblocks;\r |
1002 | }\r |
1003 | else\r |
1004 | {\r |
1005 | for (; u < 80; u++)\r |
1006 | {\r |
1007 | unsigned int *sprite;\r |
1008 | int code, code2, sx, sy, hv, height, width, skip=0, sx_min;\r |
1009 | \r |
1010 | sprite=(unsigned int *)(Pico.vram+((table+(link<<2))&0x7ffc)); // Find sprite\r |
1011 | \r |
1012 | // parse sprite info\r |
1013 | code = sprite[0];\r |
1014 | sy = (code&0x1ff)-0x80;\r |
1015 | hv = (code>>24)&0xf;\r |
1016 | height = (hv&3)+1;\r |
1017 | \r |
381eea9b |
1018 | if (sy > 240 || sy + (height<<3) <= 0) skip|=1<<22; // sprite offscreen (completely, y)\r |
6d7acf9e |
1019 | \r |
cc68a136 |
1020 | width = (hv>>2)+1;\r |
1021 | code2 = sprite[1];\r |
1022 | sx = (code2>>16)&0x1ff;\r |
1023 | sx -= 0x78; // Get X coordinate + 8\r |
1024 | sx_min = 8-(width<<3);\r |
6d7acf9e |
1025 | \r |
381eea9b |
1026 | if ((sx <= sx_min && sx >= -0x76) || sx >= 328) skip|=1<<23; // offscreen x\r |
cc68a136 |
1027 | else if (sx > sx_min && !skip) {\r |
1028 | int sbl = (2<<height)-1;\r |
1029 | int shi = sy>>3;\r |
1030 | if(shi < 0) shi=0; // negative sy\r |
1031 | sblocks |= sbl<<shi;\r |
1032 | }\r |
6d7acf9e |
1033 | \r |
cc68a136 |
1034 | *pd++ = (width<<28)|(height<<24)|skip|(hv<<16)|((unsigned short)sy);\r |
1035 | *pd++ = (sx<<16)|((unsigned short)code2);\r |
6d7acf9e |
1036 | \r |
cc68a136 |
1037 | // Find next sprite\r |
1038 | link=(code>>16)&0x7f;\r |
1039 | if(!link) break; // End of sprites\r |
1040 | }\r |
1041 | SpriteBlocks = sblocks;\r |
1042 | *pd = 0; // terminate\r |
1043 | }\r |
1044 | }\r |
1045 | \r |
1046 | static void DrawAllSprites(int *hcache, int maxwidth, int prio, int sh)\r |
1047 | {\r |
1048 | int i,u,n;\r |
381eea9b |
1049 | int sx1seen = 0; // sprite with x coord 1 or 0 seen\r |
cc68a136 |
1050 | int ntiles = 0; // tile counter for sprite limit emulation\r |
1051 | int *sprites[40]; // Sprites to draw in fast mode\r |
381eea9b |
1052 | int max_line_sprites = 20; // 20 sprites, 40 tiles\r |
1053 | int *ps, pack, rs = rendstatus, scan = Scanline;\r |
cc68a136 |
1054 | \r |
602133e1 |
1055 | if (rs & (PDRAW_SPRITES_MOVED|PDRAW_DIRTY_SPRITES)) {\r |
cc68a136 |
1056 | //dprintf("PrepareSprites(%i) [%i]", (rs>>4)&1, scan);\r |
602133e1 |
1057 | PrepareSprites(rs & PDRAW_DIRTY_SPRITES);\r |
1058 | rendstatus = rs & ~(PDRAW_SPRITES_MOVED|PDRAW_DIRTY_SPRITES);\r |
cc68a136 |
1059 | }\r |
e5fa9817 |
1060 | if (!(SpriteBlocks & (1<<(scan>>3)))) { *hcache = 0; return; }\r |
cc68a136 |
1061 | \r |
381eea9b |
1062 | if (PicoOpt & POPT_DIS_SPRITE_LIM)\r |
1063 | max_line_sprites = 80;\r |
1064 | \r |
cc68a136 |
1065 | ps = HighPreSpr;\r |
1066 | \r |
1067 | // Index + 0 : hhhhvvvv ab--hhvv yyyyyyyy yyyyyyyy // a: offscreen h, b: offs. v, h: horiz. size\r |
1068 | // Index + 4 : xxxxxxxx xxxxxxxx pccvhnnn nnnnnnnn // x: x coord + 8\r |
1069 | \r |
381eea9b |
1070 | for (i=u=n=0; (pack = *ps) && n < max_line_sprites; ps+=2, u++)\r |
cc68a136 |
1071 | {\r |
1072 | int sx, sy, row, pack2;\r |
1073 | \r |
381eea9b |
1074 | if (pack & 0x00400000) continue;\r |
cc68a136 |
1075 | \r |
1076 | // get sprite info\r |
1077 | pack2 = *(ps+1);\r |
1078 | sx = pack2>>16;\r |
1079 | sy = (pack <<16)>>16;\r |
1080 | row = scan-sy;\r |
1081 | \r |
6c254710 |
1082 | // elprintf(EL_ANOMALY, "x: %4i y: %4i p %i %ix%i", sx, sy, (pack2>>15)&1, (pack>>28)<<3, (pack>>21)&0x38);\r |
1083 | \r |
381eea9b |
1084 | if (sx == -0x77) sx1seen|=1; // for masking mode 2\r |
cc68a136 |
1085 | \r |
1086 | // check if it is on this line\r |
381eea9b |
1087 | if (row < 0 || row >= ((pack>>21)&0x38)) continue; // no\r |
6c254710 |
1088 | \r |
1089 | // masking sprite?\r |
1090 | if (sx == -0x78) {\r |
1091 | if (n > 0) break; // masked\r |
1092 | continue;\r |
1093 | }\r |
1094 | \r |
1095 | n++; // number of sprites on this line (both visible and hidden, except of x=0)\r |
cc68a136 |
1096 | \r |
1097 | // sprite limit\r |
1098 | ntiles += pack>>28;\r |
381eea9b |
1099 | if (ntiles > max_line_sprites*2) break;\r |
cc68a136 |
1100 | \r |
381eea9b |
1101 | if (pack & 0x00800000) continue;\r |
cc68a136 |
1102 | \r |
cc68a136 |
1103 | // sprite is good, save it's pointer\r |
1104 | sprites[i++]=ps;\r |
1105 | }\r |
1106 | \r |
e5fa9817 |
1107 | n = (rs & PDRAW_ACC_SPRITES) ? 1 : 0;\r |
1108 | \r |
cc68a136 |
1109 | // Go through sprites backwards:\r |
e5fa9817 |
1110 | for (i--; i>=0; i--)\r |
1111 | DrawSprite(sprites[i],&hcache,sh,n);\r |
cc68a136 |
1112 | \r |
e5fa9817 |
1113 | // terminate cache list\r |
1114 | *hcache = 0;\r |
cc68a136 |
1115 | }\r |
1116 | \r |
1117 | \r |
1118 | // --------------------------------------------\r |
1119 | \r |
1120 | #ifndef _ASM_DRAW_C\r |
1121 | static void BackFill(int reg7, int sh)\r |
1122 | {\r |
b542be46 |
1123 | unsigned int back;\r |
cc68a136 |
1124 | \r |
1125 | // Start with a blank scanline (background colour):\r |
1126 | back=reg7&0x3f;\r |
1127 | back|=sh<<6;\r |
1128 | back|=back<<8;\r |
1129 | back|=back<<16;\r |
1130 | \r |
b542be46 |
1131 | memset32((int *)(HighCol+8), back, 320/4);\r |
cc68a136 |
1132 | }\r |
1133 | #endif\r |
1134 | \r |
1135 | // --------------------------------------------\r |
1136 | \r |
1137 | unsigned short HighPal[0x100];\r |
1138 | \r |
1139 | #ifndef _ASM_DRAW_C\r |
1140 | static void FinalizeLineBGR444(int sh)\r |
1141 | {\r |
1142 | unsigned short *pd=DrawLineDest;\r |
1143 | unsigned char *ps=HighCol+8;\r |
1144 | unsigned short *pal=Pico.cram;\r |
e5fa9817 |
1145 | int len, i, t, mask=0xff;\r |
cc68a136 |
1146 | \r |
1147 | if (Pico.video.reg[12]&1) {\r |
1148 | len = 320;\r |
1149 | } else {\r |
602133e1 |
1150 | if(!(PicoOpt&POPT_DIS_32C_BORDER)) pd+=32;\r |
cc68a136 |
1151 | len = 256;\r |
1152 | }\r |
1153 | \r |
1154 | if(sh) {\r |
1155 | pal=HighPal;\r |
1156 | if(Pico.m.dirtyPal) {\r |
1157 | blockcpy(pal, Pico.cram, 0x40*2);\r |
1158 | // shadowed pixels\r |
1159 | for(i = 0x3f; i >= 0; i--)\r |
1160 | pal[0x40|i] = pal[0xc0|i] = (unsigned short)((pal[i]>>1)&0x0777);\r |
1161 | // hilighted pixels\r |
1162 | for(i = 0x3f; i >= 0; i--) {\r |
1163 | t=pal[i]&0xeee;t+=0x444;if(t&0x10)t|=0xe;if(t&0x100)t|=0xe0;if(t&0x1000)t|=0xe00;t&=0xeee;\r |
1164 | pal[0x80|i]=(unsigned short)t;\r |
1165 | }\r |
1166 | Pico.m.dirtyPal = 0;\r |
1167 | }\r |
1168 | }\r |
1169 | \r |
e5fa9817 |
1170 | if (!sh && (rendstatus & PDRAW_ACC_SPRITES))\r |
1171 | mask=0x3f; // accurate sprites\r |
1172 | \r |
cc68a136 |
1173 | for(i = 0; i < len; i++)\r |
e5fa9817 |
1174 | pd[i] = pal[ps[i] & mask];\r |
cc68a136 |
1175 | }\r |
1176 | \r |
1177 | \r |
1178 | static void FinalizeLineRGB555(int sh)\r |
1179 | {\r |
1180 | unsigned short *pd=DrawLineDest;\r |
1181 | unsigned char *ps=HighCol+8;\r |
1182 | unsigned short *pal=HighPal;\r |
1183 | int len, i, t, dirtyPal = Pico.m.dirtyPal;\r |
1184 | \r |
70357ce5 |
1185 | if (dirtyPal)\r |
1186 | {\r |
1187 | unsigned int *spal=(void *)Pico.cram;\r |
1188 | unsigned int *dpal=(void *)HighPal;\r |
1189 | for (i = 0x3f/2; i >= 0; i--)\r |
1190 | #ifdef USE_BGR555\r |
1191 | dpal[i] = ((spal[i]&0x000f000f)<< 1)|((spal[i]&0x00f000f0)<<3)|((spal[i]&0x0f000f00)<<4);\r |
1192 | #else\r |
1193 | dpal[i] = ((spal[i]&0x000f000f)<<12)|((spal[i]&0x00f000f0)<<3)|((spal[i]&0x0f000f00)>>7);\r |
1194 | #endif\r |
cc68a136 |
1195 | Pico.m.dirtyPal = 0;\r |
1196 | }\r |
1197 | \r |
70357ce5 |
1198 | if (sh)\r |
1199 | {\r |
1200 | if (dirtyPal) {\r |
cc68a136 |
1201 | // shadowed pixels\r |
70357ce5 |
1202 | for (i = 0x3f; i >= 0; i--)\r |
cc68a136 |
1203 | pal[0x40|i] = pal[0xc0|i] = (unsigned short)((pal[i]>>1)&0x738e);\r |
1204 | // hilighted pixels\r |
70357ce5 |
1205 | for (i = 0x3f; i >= 0; i--) {\r |
cc68a136 |
1206 | t=pal[i]&0xe71c;t+=0x4208;if(t&0x20)t|=0x1c;if(t&0x800)t|=0x700;if(t&0x10000)t|=0xe000;t&=0xe71c;\r |
1207 | pal[0x80|i]=(unsigned short)t;\r |
1208 | }\r |
1209 | }\r |
1210 | }\r |
1211 | \r |
70357ce5 |
1212 | if (Pico.video.reg[12]&1) {\r |
1213 | len = 320;\r |
1214 | } else {\r |
602133e1 |
1215 | if (!(PicoOpt&POPT_DIS_32C_BORDER)) pd+=32;\r |
70357ce5 |
1216 | len = 256;\r |
1217 | }\r |
1218 | \r |
e5fa9817 |
1219 | {\r |
70357ce5 |
1220 | #ifndef PSP\r |
e5fa9817 |
1221 | int mask=0xff;\r |
1222 | if (!sh && (rendstatus & PDRAW_ACC_SPRITES))\r |
1223 | mask=0x3f; // accurate sprites, upper bits are priority stuff\r |
1224 | \r |
1225 | for (i = 0; i < len; i++)\r |
1226 | pd[i] = pal[ps[i] & mask];\r |
70357ce5 |
1227 | #else\r |
70357ce5 |
1228 | extern void amips_clut(unsigned short *dst, unsigned char *src, unsigned short *pal, int count);\r |
e5fa9817 |
1229 | extern void amips_clut_6bit(unsigned short *dst, unsigned char *src, unsigned short *pal, int count);\r |
1230 | if (!sh && (rendstatus & PDRAW_ACC_SPRITES))\r |
1231 | amips_clut_6bit(pd, ps, pal, len);\r |
1232 | else amips_clut(pd, ps, pal, len);\r |
70357ce5 |
1233 | #endif\r |
e5fa9817 |
1234 | }\r |
cc68a136 |
1235 | }\r |
1236 | #endif\r |
1237 | \r |
1238 | static void FinalizeLine8bit(int sh)\r |
1239 | {\r |
1240 | unsigned char *pd=DrawLineDest;\r |
1241 | int len, rs = rendstatus;\r |
1242 | static int dirty_count;\r |
1243 | \r |
e5fa9817 |
1244 | if (!sh && !(rs & PDRAW_ACC_SPRITES) && Pico.m.dirtyPal == 1 && Scanline < 222)\r |
602133e1 |
1245 | {\r |
cc68a136 |
1246 | // a hack for mid-frame palette changes\r |
602133e1 |
1247 | if (!(rs & PDRAW_SONIC_MODE))\r |
cc68a136 |
1248 | dirty_count = 1;\r |
1249 | else dirty_count++;\r |
602133e1 |
1250 | rs |= PDRAW_SONIC_MODE;\r |
cc68a136 |
1251 | rendstatus = rs;\r |
1252 | if (dirty_count == 3) {\r |
1253 | blockcpy(HighPal, Pico.cram, 0x40*2);\r |
1254 | } else if (dirty_count == 11) {\r |
1255 | blockcpy(HighPal+0x40, Pico.cram, 0x40*2);\r |
1256 | }\r |
1257 | }\r |
1258 | \r |
1259 | if (Pico.video.reg[12]&1) {\r |
1260 | len = 320;\r |
1261 | } else {\r |
602133e1 |
1262 | if (!(PicoOpt&POPT_DIS_32C_BORDER)) pd+=32;\r |
cc68a136 |
1263 | len = 256;\r |
1264 | }\r |
1265 | \r |
602133e1 |
1266 | if (!sh && (rs & PDRAW_SONIC_MODE)) {\r |
cc68a136 |
1267 | if (dirty_count >= 11) {\r |
1268 | blockcpy_or(pd, HighCol+8, len, 0x80);\r |
1269 | } else {\r |
1270 | blockcpy_or(pd, HighCol+8, len, 0x40);\r |
1271 | }\r |
1272 | } else {\r |
1273 | blockcpy(pd, HighCol+8, len);\r |
1274 | }\r |
1275 | }\r |
1276 | \r |
ea8c405f |
1277 | static void (*FinalizeLine)(int sh) = FinalizeLineBGR444;\r |
cc68a136 |
1278 | \r |
602133e1 |
1279 | // hblank was enabled early during prev line processng -\r |
1280 | // it should have been blanked\r |
1281 | static void handle_early_blank(int scanline, int sh)\r |
1282 | {\r |
1283 | scanline--;\r |
1284 | \r |
1285 | if (PicoScanBegin != NULL)\r |
1286 | PicoScanBegin(scanline);\r |
1287 | \r |
1288 | BackFill(Pico.video.reg[7], sh);\r |
1289 | \r |
1290 | if (FinalizeLine != NULL)\r |
1291 | FinalizeLine(sh);\r |
1292 | \r |
1293 | if (PicoScanEnd != NULL)\r |
1294 | PicoScanEnd(scanline);\r |
1295 | }\r |
1296 | \r |
cc68a136 |
1297 | // --------------------------------------------\r |
1298 | \r |
e5fa9817 |
1299 | static int DrawDisplay(int sh, int as)\r |
cc68a136 |
1300 | {\r |
1301 | struct PicoVideo *pvid=&Pico.video;\r |
1302 | int win=0,edge=0,hvwind=0;\r |
1303 | int maxw, maxcells;\r |
1304 | \r |
602133e1 |
1305 | rendstatus &= ~(PDRAW_SHHI_DONE|PDRAW_PLANE_HI_PRIO);\r |
740da8c6 |
1306 | \r |
cc68a136 |
1307 | if(pvid->reg[12]&1) {\r |
1308 | maxw = 328; maxcells = 40;\r |
1309 | } else {\r |
1310 | maxw = 264; maxcells = 32;\r |
1311 | }\r |
1312 | \r |
1313 | // Find out if the window is on this line:\r |
1314 | win=pvid->reg[0x12];\r |
1315 | edge=(win&0x1f)<<3;\r |
1316 | \r |
1317 | if (win&0x80) { if (Scanline>=edge) hvwind=1; }\r |
1318 | else { if (Scanline< edge) hvwind=1; }\r |
1319 | \r |
7a7c6476 |
1320 | if (!hvwind) { // we might have a vertical window here\r |
cc68a136 |
1321 | win=pvid->reg[0x11];\r |
1322 | edge=win&0x1f;\r |
7a7c6476 |
1323 | if (win&0x80) {\r |
1324 | if (!edge) hvwind=1;\r |
cc68a136 |
1325 | else if(edge < (maxcells>>1)) hvwind=2;\r |
1326 | } else {\r |
7a7c6476 |
1327 | if (!edge);\r |
cc68a136 |
1328 | else if(edge < (maxcells>>1)) hvwind=2;\r |
1329 | else hvwind=1;\r |
1330 | }\r |
1331 | }\r |
1332 | \r |
e5fa9817 |
1333 | DrawLayer(1|((sh|as)<<1), HighCacheB, 0, maxcells);\r |
7a7c6476 |
1334 | if (hvwind == 1)\r |
e5fa9817 |
1335 | DrawWindow(0, maxcells>>1, 0, sh|as);\r |
7a7c6476 |
1336 | else if (hvwind == 2) {\r |
cc68a136 |
1337 | // ahh, we have vertical window\r |
e5fa9817 |
1338 | DrawLayer(0|((sh|as)<<1), HighCacheA, (win&0x80) ? 0 : edge<<1, (win&0x80) ? edge<<1 : maxcells);\r |
1339 | DrawWindow( (win&0x80) ? edge : 0, (win&0x80) ? maxcells>>1 : edge, 0, sh|as);\r |
cc68a136 |
1340 | } else\r |
e5fa9817 |
1341 | DrawLayer(0|((sh|as)<<1), HighCacheA, 0, maxcells);\r |
1342 | DrawAllSpritesLoPri(HighCacheS, maxw, 0, sh);\r |
cc68a136 |
1343 | \r |
7a7c6476 |
1344 | if (HighCacheB[0]) DrawTilesFromCache(HighCacheB, sh, 328);\r |
1345 | if (hvwind == 1)\r |
cc68a136 |
1346 | DrawWindow(0, maxcells>>1, 1, sh);\r |
7a7c6476 |
1347 | else if (hvwind == 2) {\r |
83c093a4 |
1348 | if(HighCacheA[0]) DrawTilesFromCache(HighCacheA, sh, (win&0x80) ? edge<<4 : 328);\r |
cc68a136 |
1349 | DrawWindow((win&0x80) ? edge : 0, (win&0x80) ? maxcells>>1 : edge, 1, sh);\r |
1350 | } else\r |
7a7c6476 |
1351 | if (HighCacheA[0]) DrawTilesFromCache(HighCacheA, sh, 328);\r |
e5fa9817 |
1352 | DrawAllSpritesHiPri(HighCacheS, maxw, 1, sh);\r |
cc68a136 |
1353 | \r |
740da8c6 |
1354 | #if 0\r |
1355 | {\r |
1356 | int *c, a, b;\r |
1357 | for (a = 0, c = HighCacheA; *c; c++, a++);\r |
1358 | for (b = 0, c = HighCacheB; *c; c++, b++);\r |
1359 | printf("%i:%03i: a=%i, b=%i\n", Pico.m.frame_count, Scanline, a, b);\r |
1360 | }\r |
1361 | #endif\r |
1362 | \r |
cc68a136 |
1363 | return 0;\r |
1364 | }\r |
1365 | \r |
1366 | \r |
eff55556 |
1367 | PICO_INTERNAL void PicoFrameStart(void)\r |
cc68a136 |
1368 | {\r |
1369 | // prepare to do this frame\r |
602133e1 |
1370 | rendstatus = (PicoOpt&0x80)>>5; // accurate sprites, clear everything else\r |
e5fa9817 |
1371 | if ((Pico.video.reg[12]&6) == 6) {\r |
1372 | rendstatus |= PDRAW_INTERLACE; // interlace mode\r |
1373 | DrawAllSpritesLoPri = DrawAllSpritesInterlace;\r |
1374 | DrawAllSpritesHiPri = DrawAllSpritesInterlace;\r |
1375 | }\r |
1376 | else\r |
1377 | {\r |
1378 | DrawAllSpritesLoPri = DrawAllSprites;\r |
1379 | DrawAllSpritesHiPri = rendstatus ? DrawSpritesFromCacheAS : DrawSpritesFromCache;\r |
1380 | }\r |
1381 | \r |
602133e1 |
1382 | if (Pico.m.dirtyPal) Pico.m.dirtyPal = 2; // reset dirty if needed\r |
cc68a136 |
1383 | \r |
1384 | PrepareSprites(1);\r |
602133e1 |
1385 | skip_next_line=0;\r |
cc68a136 |
1386 | }\r |
1387 | \r |
eff55556 |
1388 | PICO_INTERNAL int PicoLine(int scan)\r |
cc68a136 |
1389 | {\r |
e5fa9817 |
1390 | int sh, as = 0;\r |
602133e1 |
1391 | if (skip_next_line>0) { skip_next_line--; return 0; } // skip_next_line rendering lines\r |
cc68a136 |
1392 | \r |
1393 | Scanline=scan;\r |
1394 | sh=(Pico.video.reg[0xC]&8)>>3; // shadow/hilight?\r |
e5fa9817 |
1395 | if (rendstatus & PDRAW_ACC_SPRITES) as|=1; // accurate sprites\r |
cc68a136 |
1396 | \r |
602133e1 |
1397 | if (rendstatus & PDRAW_EARLY_BLANK) {\r |
1398 | if (scan > 0) handle_early_blank(scan, sh);\r |
1399 | rendstatus &= ~PDRAW_EARLY_BLANK;\r |
1400 | }\r |
1401 | \r |
1402 | if (PicoScanBegin != NULL)\r |
1403 | skip_next_line = PicoScanBegin(scan);\r |
1404 | \r |
cc68a136 |
1405 | // Draw screen:\r |
e5fa9817 |
1406 | BackFill(Pico.video.reg[7], sh|as);\r |
cc68a136 |
1407 | if (Pico.video.reg[1]&0x40)\r |
e5fa9817 |
1408 | DrawDisplay(sh, as);\r |
cc68a136 |
1409 | \r |
ea8c405f |
1410 | if (FinalizeLine != NULL)\r |
1411 | FinalizeLine(sh);\r |
cc68a136 |
1412 | \r |
602133e1 |
1413 | if (PicoScanEnd != NULL)\r |
1414 | PicoScanEnd(scan);\r |
cc68a136 |
1415 | \r |
1416 | return 0;\r |
1417 | }\r |
1418 | \r |
1419 | \r |
1420 | void PicoDrawSetColorFormat(int which)\r |
1421 | {\r |
ea8c405f |
1422 | switch (which)\r |
1423 | {\r |
1424 | case 2: FinalizeLine = FinalizeLine8bit; break;\r |
1425 | case 1: FinalizeLine = FinalizeLineRGB555; break;\r |
1426 | case 0: FinalizeLine = FinalizeLineBGR444; break;\r |
1427 | default:FinalizeLine = NULL; break;\r |
1428 | }\r |
499a0be3 |
1429 | #if OVERRIDE_HIGHCOL\r |
1430 | if (which) HighCol=DefHighCol;\r |
1431 | #endif\r |
cc68a136 |
1432 | }\r |
ea8c405f |
1433 | \r |