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 |
07abbab1 |
39 | int *HighCacheS_ptr;\r |
381eea9b |
40 | \r |
602133e1 |
41 | int rendstatus = 0;\r |
42 | int Scanline = 0; // Scanline\r |
cc68a136 |
43 | \r |
44 | static int SpriteBlocks;\r |
602133e1 |
45 | static int skip_next_line=0;\r |
46 | \r |
cc68a136 |
47 | //unsigned short ppt[] = { 0x0f11, 0x0ff1, 0x01f1, 0x011f, 0x01ff, 0x0f1f, 0x0f0e, 0x0e7c };\r |
48 | \r |
e5fa9817 |
49 | static void (*DrawAllSpritesLoPri)(int *hcache, int maxwidth, int prio, int sh) = NULL;\r |
50 | static void (*DrawAllSpritesHiPri)(int *hcache, int maxwidth, int prio, int sh) = NULL;\r |
51 | \r |
cc68a136 |
52 | struct TileStrip\r |
53 | {\r |
54 | int nametab; // Position in VRAM of name table (for this tile line)\r |
6d7acf9e |
55 | int line; // Line number in pixels 0x000-0x3ff within the virtual tilemap\r |
cc68a136 |
56 | int hscroll; // Horizontal scroll value in pixels for the line\r |
57 | int xmask; // X-Mask (0x1f - 0x7f) for horizontal wraparound in the tilemap\r |
58 | int *hc; // cache for high tile codes and their positions\r |
59 | int cells; // cells (tiles) to draw (32 col mode doesn't need to update whole 320)\r |
60 | };\r |
61 | \r |
62 | // stuff available in asm:\r |
63 | #ifdef _ASM_DRAW_C\r |
64 | void DrawWindow(int tstart, int tend, int prio, int sh);\r |
65 | void BackFill(int reg7, int sh);\r |
07abbab1 |
66 | void DrawSprite(int *sprite, int sh, int as);\r |
7a7c6476 |
67 | void DrawTilesFromCache(int *hc, int sh, int rlim);\r |
e5fa9817 |
68 | void DrawSpritesFromCache(int *hc, int maxwidth, int prio, int sh);\r |
83c093a4 |
69 | void DrawLayer(int plane_sh, int *hcache, int cellskip, int maxcells);\r |
cc68a136 |
70 | void FinalizeLineBGR444(int sh);\r |
71 | void FinalizeLineRGB555(int sh);\r |
7b802576 |
72 | void *blockcpy(void *dst, const void *src, size_t n);\r |
cc68a136 |
73 | void blockcpy_or(void *dst, void *src, size_t n, int pat);\r |
74 | #else\r |
75 | // utility\r |
76 | void blockcpy_or(void *dst, void *src, size_t n, int pat)\r |
77 | {\r |
78 | unsigned char *pd = dst, *ps = src;\r |
79 | for (; n; n--)\r |
80 | *pd++ = (unsigned char) (*ps++ | pat);\r |
81 | }\r |
7b802576 |
82 | #define blockcpy memcpy\r |
cc68a136 |
83 | #endif\r |
84 | \r |
85 | \r |
07abbab1 |
86 | #define TileNormMaker(funcname,pix_func) \\r |
87 | static int funcname(int sx,int addr,int pal) \\r |
88 | { \\r |
89 | unsigned char *pd = HighCol+sx; \\r |
90 | unsigned int pack=0; unsigned int t=0; \\r |
91 | \\r |
92 | pack=*(unsigned int *)(Pico.vram+addr); /* Get 8 pixels */ \\r |
93 | if (pack) \\r |
94 | { \\r |
95 | t=(pack&0x0000f000)>>12; pix_func(0); \\r |
96 | t=(pack&0x00000f00)>> 8; pix_func(1); \\r |
97 | t=(pack&0x000000f0)>> 4; pix_func(2); \\r |
98 | t=(pack&0x0000000f) ; pix_func(3); \\r |
99 | t=(pack&0xf0000000)>>28; pix_func(4); \\r |
100 | t=(pack&0x0f000000)>>24; pix_func(5); \\r |
101 | t=(pack&0x00f00000)>>20; pix_func(6); \\r |
102 | t=(pack&0x000f0000)>>16; pix_func(7); \\r |
103 | return 0; \\r |
104 | } \\r |
105 | \\r |
106 | return 1; /* Tile blank */ \\r |
cc68a136 |
107 | }\r |
108 | \r |
cc68a136 |
109 | \r |
07abbab1 |
110 | #define TileFlipMaker(funcname,pix_func) \\r |
111 | static int funcname(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)>>16; pix_func(0); \\r |
120 | t=(pack&0x00f00000)>>20; pix_func(1); \\r |
121 | t=(pack&0x0f000000)>>24; pix_func(2); \\r |
122 | t=(pack&0xf0000000)>>28; pix_func(3); \\r |
123 | t=(pack&0x0000000f) ; pix_func(4); \\r |
124 | t=(pack&0x000000f0)>> 4; pix_func(5); \\r |
125 | t=(pack&0x00000f00)>> 8; pix_func(6); \\r |
126 | t=(pack&0x0000f000)>>12; pix_func(7); \\r |
127 | return 0; \\r |
128 | } \\r |
129 | \\r |
130 | return 1; /* Tile blank */ \\r |
cc68a136 |
131 | }\r |
cc68a136 |
132 | \r |
cc68a136 |
133 | \r |
07abbab1 |
134 | #ifdef _ASM_DRAW_C_AMIPS\r |
135 | int TileNorm(int sx,int addr,int pal);\r |
136 | int TileFlip(int sx,int addr,int pal);\r |
137 | #else\r |
cc68a136 |
138 | \r |
07abbab1 |
139 | #define pix_just_write(x) \\r |
140 | if (t) pd[x]=pal|t\r |
cc68a136 |
141 | \r |
07abbab1 |
142 | TileNormMaker(TileNorm,pix_just_write)\r |
143 | TileFlipMaker(TileFlip,pix_just_write)\r |
cc68a136 |
144 | \r |
cc68a136 |
145 | #endif\r |
146 | \r |
07abbab1 |
147 | // draw a sprite pixel, process operator colors\r |
148 | #define pix_sh(x) \\r |
149 | if (!t); \\r |
150 | else if (t==0xe) pd[x]=(pd[x]&0x3f)|0x80; /* hilight */ \\r |
151 | else if (t==0xf) pd[x]= pd[x] |0xc0; /* shadow */ \\r |
152 | else pd[x]=pal|t\r |
e5fa9817 |
153 | \r |
07abbab1 |
154 | TileNormMaker(TileNormSH, pix_sh)\r |
155 | TileFlipMaker(TileFlipSH, pix_sh)\r |
cc68a136 |
156 | \r |
07abbab1 |
157 | #ifndef _ASM_DRAW_C\r |
158 | // draw a sprite pixel ignoring operator colors\r |
159 | #define pix_sh_noop(x) \\r |
160 | if (t && t < 0xe) \\r |
161 | pd[x]=pal|t\r |
cc68a136 |
162 | \r |
07abbab1 |
163 | TileNormMaker(TileNormSH_noop, pix_sh_noop)\r |
164 | TileFlipMaker(TileFlipSH_noop, pix_sh_noop)\r |
165 | #endif\r |
6c254710 |
166 | \r |
07abbab1 |
167 | // process operator pixels only, apply only on low pri tiles\r |
168 | #define pix_sh_onlyop(x) \\r |
169 | if (t==0xe && (pd[x]&0x40)) pd[x]=(pd[x]&0x3f)|0x80; /* hilight */ \\r |
170 | else if (t==0xf && (pd[x]&0x40)) pd[x]= pd[x] |0xc0; /* shadow */\r |
cc68a136 |
171 | \r |
07abbab1 |
172 | TileNormMaker(TileNormSH_onlyop_lp, pix_sh_onlyop)\r |
173 | TileFlipMaker(TileFlipSH_onlyop_lp, pix_sh_onlyop)\r |
cc68a136 |
174 | \r |
07abbab1 |
175 | // draw a sprite pixel (AS)\r |
176 | #define pix_as(x) \\r |
177 | if (t && !(pd[x]&0x80)) pd[x]=pal|t\r |
cc68a136 |
178 | \r |
07abbab1 |
179 | TileNormMaker(TileNormAS, pix_as)\r |
180 | TileFlipMaker(TileFlipAS, pix_as)\r |
cc68a136 |
181 | \r |
07abbab1 |
182 | // draw a sprite pixel, skip operator colors (AS)\r |
183 | #define pix_sh_as_noop(x) \\r |
184 | if (t && t < 0xe && !(pd[x]&0x80)) pd[x]=pal|t\r |
cc68a136 |
185 | \r |
07abbab1 |
186 | TileNormMaker(TileNormAS_noop, pix_sh_as_noop)\r |
187 | TileFlipMaker(TileFlipAS_noop, pix_sh_as_noop)\r |
cc68a136 |
188 | \r |
07abbab1 |
189 | // mark pixel as sprite pixel (AS)\r |
190 | #define pix_sh_as_onlymark(x) \\r |
191 | if (t) pd[x]|=0x80\r |
cc68a136 |
192 | \r |
07abbab1 |
193 | TileNormMaker(TileNormAS_onlymark, pix_sh_as_onlymark)\r |
194 | TileFlipMaker(TileFlipAS_onlymark, pix_sh_as_onlymark)\r |
cc68a136 |
195 | \r |
e5fa9817 |
196 | \r |
cc68a136 |
197 | // --------------------------------------------\r |
198 | \r |
199 | #ifndef _ASM_DRAW_C\r |
83c093a4 |
200 | static void DrawStrip(struct TileStrip *ts, int plane_sh, int cellskip)\r |
cc68a136 |
201 | {\r |
83c093a4 |
202 | int tilex,dx,ty,code=0,addr=0,cells;\r |
cc68a136 |
203 | int oldcode=-1,blank=-1; // The tile we know is blank\r |
83c093a4 |
204 | int pal=0,sh;\r |
cc68a136 |
205 | \r |
206 | // Draw tiles across screen:\r |
83c093a4 |
207 | sh=(plane_sh<<5)&0x40;\r |
208 | tilex=((-ts->hscroll)>>3)+cellskip;\r |
cc68a136 |
209 | ty=(ts->line&7)<<1; // Y-Offset into tile\r |
210 | dx=((ts->hscroll-1)&7)+1;\r |
83c093a4 |
211 | cells = ts->cells - cellskip;\r |
cc68a136 |
212 | if(dx != 8) cells++; // have hscroll, need to draw 1 cell more\r |
83c093a4 |
213 | dx+=cellskip<<3;\r |
cc68a136 |
214 | \r |
83c093a4 |
215 | for (; cells > 0; dx+=8,tilex++,cells--)\r |
cc68a136 |
216 | {\r |
217 | int zero=0;\r |
218 | \r |
219 | code=Pico.vram[ts->nametab+(tilex&ts->xmask)];\r |
220 | if (code==blank) continue;\r |
221 | if (code>>15) { // high priority tile\r |
222 | int cval = code | (dx<<16) | (ty<<25);\r |
223 | if(code&0x1000) cval^=7<<26;\r |
224 | *ts->hc++ = cval; // cache it\r |
225 | continue;\r |
226 | }\r |
227 | \r |
228 | if (code!=oldcode) {\r |
229 | oldcode = code;\r |
230 | // Get tile address/2:\r |
231 | addr=(code&0x7ff)<<4;\r |
232 | addr+=ty;\r |
233 | if (code&0x1000) addr^=0xe; // Y-flip\r |
234 | \r |
83c093a4 |
235 | pal=((code>>9)&0x30)|sh;\r |
cc68a136 |
236 | }\r |
237 | \r |
238 | if (code&0x0800) zero=TileFlip(dx,addr,pal);\r |
239 | else zero=TileNorm(dx,addr,pal);\r |
240 | \r |
241 | if (zero) blank=code; // We know this tile is blank now\r |
242 | }\r |
243 | \r |
244 | // terminate the cache list\r |
245 | *ts->hc = 0;\r |
740da8c6 |
246 | // if oldcode wasn't changed, it means all layer is hi priority\r |
602133e1 |
247 | if (oldcode == -1) rendstatus |= PDRAW_PLANE_HI_PRIO;\r |
cc68a136 |
248 | }\r |
cc68a136 |
249 | \r |
250 | // this is messy\r |
83c093a4 |
251 | void DrawStripVSRam(struct TileStrip *ts, int plane_sh, int cellskip)\r |
cc68a136 |
252 | {\r |
83c093a4 |
253 | int tilex,dx,code=0,addr=0,cell=0;\r |
cc68a136 |
254 | int oldcode=-1,blank=-1; // The tile we know is blank\r |
255 | int pal=0,scan=Scanline;\r |
256 | \r |
257 | // Draw tiles across screen:\r |
258 | tilex=(-ts->hscroll)>>3;\r |
259 | dx=((ts->hscroll-1)&7)+1;\r |
83c093a4 |
260 | if(dx != 8) cell--; // have hscroll, start with negative cell\r |
261 | cell+=cellskip;\r |
262 | tilex+=cellskip;\r |
263 | dx+=cellskip<<3;\r |
cc68a136 |
264 | \r |
265 | for (; cell < ts->cells; dx+=8,tilex++,cell++)\r |
266 | {\r |
83c093a4 |
267 | int zero=0,nametabadd,ty;\r |
cc68a136 |
268 | \r |
83c093a4 |
269 | //if((cell&1)==0)\r |
270 | {\r |
cc68a136 |
271 | int line,vscroll;\r |
83c093a4 |
272 | vscroll=Pico.vsram[(plane_sh&1)+(cell&~1)];\r |
cc68a136 |
273 | \r |
274 | // Find the line in the name table\r |
275 | line=(vscroll+scan)&ts->line&0xffff; // ts->line is really ymask ..\r |
276 | nametabadd=(line>>3)<<(ts->line>>24); // .. and shift[width]\r |
277 | ty=(line&7)<<1; // Y-Offset into tile\r |
278 | }\r |
279 | \r |
280 | code=Pico.vram[ts->nametab+nametabadd+(tilex&ts->xmask)];\r |
281 | if (code==blank) continue;\r |
282 | if (code>>15) { // high priority tile\r |
283 | int cval = code | (dx<<16) | (ty<<25);\r |
284 | if(code&0x1000) cval^=7<<26;\r |
285 | *ts->hc++ = cval; // cache it\r |
286 | continue;\r |
287 | }\r |
288 | \r |
289 | if (code!=oldcode) {\r |
290 | oldcode = code;\r |
291 | // Get tile address/2:\r |
292 | addr=(code&0x7ff)<<4;\r |
293 | if (code&0x1000) addr+=14-ty; else addr+=ty; // Y-flip\r |
294 | \r |
83c093a4 |
295 | pal=((code>>9)&0x30)|((plane_sh<<5)&0x40);\r |
cc68a136 |
296 | }\r |
297 | \r |
298 | if (code&0x0800) zero=TileFlip(dx,addr,pal);\r |
299 | else zero=TileNorm(dx,addr,pal);\r |
300 | \r |
301 | if (zero) blank=code; // We know this tile is blank now\r |
302 | }\r |
303 | \r |
304 | // terminate the cache list\r |
305 | *ts->hc = 0;\r |
602133e1 |
306 | if (oldcode == -1) rendstatus |= PDRAW_PLANE_HI_PRIO;\r |
cc68a136 |
307 | }\r |
6d7acf9e |
308 | #endif\r |
cc68a136 |
309 | \r |
310 | #ifndef _ASM_DRAW_C\r |
311 | static\r |
312 | #endif\r |
313 | void DrawStripInterlace(struct TileStrip *ts)\r |
314 | {\r |
315 | int tilex=0,dx=0,ty=0,code=0,addr=0,cells;\r |
316 | int oldcode=-1,blank=-1; // The tile we know is blank\r |
317 | int pal=0;\r |
318 | \r |
319 | // Draw tiles across screen:\r |
320 | tilex=(-ts->hscroll)>>3;\r |
321 | ty=(ts->line&15)<<1; // Y-Offset into tile\r |
322 | dx=((ts->hscroll-1)&7)+1;\r |
323 | cells = ts->cells;\r |
324 | if(dx != 8) cells++; // have hscroll, need to draw 1 cell more\r |
325 | \r |
326 | for (; cells; dx+=8,tilex++,cells--)\r |
327 | {\r |
328 | int zero=0;\r |
329 | \r |
330 | code=Pico.vram[ts->nametab+(tilex&ts->xmask)];\r |
331 | if (code==blank) continue;\r |
332 | if (code>>15) { // high priority tile\r |
333 | int cval = (code&0xfc00) | (dx<<16) | (ty<<25);\r |
334 | cval|=(code&0x3ff)<<1;\r |
335 | if(code&0x1000) cval^=0xf<<26;\r |
336 | *ts->hc++ = cval; // cache it\r |
337 | continue;\r |
338 | }\r |
339 | \r |
340 | if (code!=oldcode) {\r |
341 | oldcode = code;\r |
342 | // Get tile address/2:\r |
343 | addr=(code&0x7ff)<<5;\r |
344 | if (code&0x1000) addr+=30-ty; else addr+=ty; // Y-flip\r |
345 | \r |
346 | // pal=Pico.cram+((code>>9)&0x30);\r |
347 | pal=((code>>9)&0x30);\r |
348 | }\r |
349 | \r |
350 | if (code&0x0800) zero=TileFlip(dx,addr,pal);\r |
351 | else zero=TileNorm(dx,addr,pal);\r |
352 | \r |
353 | if (zero) blank=code; // We know this tile is blank now\r |
354 | }\r |
355 | \r |
356 | // terminate the cache list\r |
357 | *ts->hc = 0;\r |
358 | }\r |
359 | \r |
360 | // --------------------------------------------\r |
361 | \r |
362 | #ifndef _ASM_DRAW_C\r |
83c093a4 |
363 | static void DrawLayer(int plane_sh, int *hcache, int cellskip, int maxcells)\r |
cc68a136 |
364 | {\r |
365 | struct PicoVideo *pvid=&Pico.video;\r |
366 | const char shift[4]={5,6,5,7}; // 32,64 or 128 sized tilemaps (2 is invalid)\r |
367 | struct TileStrip ts;\r |
368 | int width, height, ymask;\r |
369 | int vscroll, htab;\r |
370 | \r |
371 | ts.hc=hcache;\r |
372 | ts.cells=maxcells;\r |
373 | \r |
374 | // Work out the TileStrip to draw\r |
375 | \r |
376 | // Work out the name table size: 32 64 or 128 tiles (0-3)\r |
377 | width=pvid->reg[16];\r |
378 | height=(width>>4)&3; width&=3;\r |
379 | \r |
380 | ts.xmask=(1<<shift[width])-1; // X Mask in tiles (0x1f-0x7f)\r |
381 | ymask=(height<<8)|0xff; // Y Mask in pixels\r |
382 | if(width == 1) ymask&=0x1ff;\r |
383 | else if(width>1) ymask =0x0ff;\r |
384 | \r |
385 | // Find name table:\r |
83c093a4 |
386 | if (plane_sh&1) ts.nametab=(pvid->reg[4]&0x07)<<12; // B\r |
387 | else ts.nametab=(pvid->reg[2]&0x38)<< 9; // A\r |
cc68a136 |
388 | \r |
389 | htab=pvid->reg[13]<<9; // Horizontal scroll table address\r |
390 | if ( pvid->reg[11]&2) htab+=Scanline<<1; // Offset by line\r |
391 | if ((pvid->reg[11]&1)==0) htab&=~0xf; // Offset by tile\r |
83c093a4 |
392 | htab+=plane_sh&1; // A or B\r |
cc68a136 |
393 | \r |
394 | // Get horizontal scroll value, will be masked later\r |
395 | ts.hscroll=Pico.vram[htab&0x7fff];\r |
396 | \r |
397 | if((pvid->reg[12]&6) == 6) {\r |
398 | // interlace mode 2\r |
83c093a4 |
399 | vscroll=Pico.vsram[plane_sh&1]; // Get vertical scroll value\r |
cc68a136 |
400 | \r |
401 | // Find the line in the name table\r |
402 | ts.line=(vscroll+(Scanline<<1))&((ymask<<1)|1);\r |
403 | ts.nametab+=(ts.line>>4)<<shift[width];\r |
404 | \r |
405 | DrawStripInterlace(&ts);\r |
406 | } else if( pvid->reg[11]&4) {\r |
407 | // shit, we have 2-cell column based vscroll\r |
408 | // luckily this doesn't happen too often\r |
409 | ts.line=ymask|(shift[width]<<24); // save some stuff instead of line\r |
83c093a4 |
410 | DrawStripVSRam(&ts, plane_sh, cellskip);\r |
cc68a136 |
411 | } else {\r |
83c093a4 |
412 | vscroll=Pico.vsram[plane_sh&1]; // Get vertical scroll value\r |
cc68a136 |
413 | \r |
414 | // Find the line in the name table\r |
415 | ts.line=(vscroll+Scanline)&ymask;\r |
416 | ts.nametab+=(ts.line>>3)<<shift[width];\r |
417 | \r |
83c093a4 |
418 | DrawStrip(&ts, plane_sh, cellskip);\r |
cc68a136 |
419 | }\r |
420 | }\r |
421 | \r |
422 | \r |
423 | // --------------------------------------------\r |
424 | \r |
425 | // tstart & tend are tile pair numbers\r |
426 | static void DrawWindow(int tstart, int tend, int prio, int sh) // int *hcache\r |
427 | {\r |
428 | struct PicoVideo *pvid=&Pico.video;\r |
07abbab1 |
429 | int tilex,ty,nametab,code=0;\r |
cc68a136 |
430 | int blank=-1; // The tile we know is blank\r |
431 | \r |
432 | // Find name table line:\r |
433 | if (pvid->reg[12]&1)\r |
434 | {\r |
435 | nametab=(pvid->reg[3]&0x3c)<<9; // 40-cell mode\r |
436 | nametab+=(Scanline>>3)<<6;\r |
437 | }\r |
438 | else\r |
439 | {\r |
440 | nametab=(pvid->reg[3]&0x3e)<<9; // 32-cell mode\r |
441 | nametab+=(Scanline>>3)<<5;\r |
442 | }\r |
443 | \r |
444 | tilex=tstart<<1;\r |
cc68a136 |
445 | \r |
602133e1 |
446 | if (!(rendstatus & PDRAW_WND_DIFF_PRIO)) {\r |
cc68a136 |
447 | // check the first tile code\r |
448 | code=Pico.vram[nametab+tilex];\r |
449 | // if the whole window uses same priority (what is often the case), we may be able to skip this field\r |
602133e1 |
450 | if ((code>>15) != prio) return;\r |
cc68a136 |
451 | }\r |
452 | \r |
07abbab1 |
453 | tend<<=1;\r |
454 | ty=(Scanline&7)<<1; // Y-Offset into tile\r |
455 | \r |
cc68a136 |
456 | // Draw tiles across screen:\r |
81fda4e8 |
457 | if (!sh)\r |
cc68a136 |
458 | {\r |
81fda4e8 |
459 | for (; tilex < tend; tilex++)\r |
460 | {\r |
461 | int addr=0,zero=0;\r |
462 | int pal;\r |
463 | \r |
464 | code=Pico.vram[nametab+tilex];\r |
602133e1 |
465 | if (code==blank) continue;\r |
466 | if ((code>>15) != prio) {\r |
467 | rendstatus |= PDRAW_WND_DIFF_PRIO;\r |
81fda4e8 |
468 | continue;\r |
469 | }\r |
cc68a136 |
470 | \r |
81fda4e8 |
471 | pal=((code>>9)&0x30);\r |
472 | \r |
473 | // Get tile address/2:\r |
474 | addr=(code&0x7ff)<<4;\r |
475 | if (code&0x1000) addr+=14-ty; else addr+=ty; // Y-flip\r |
476 | \r |
477 | if (code&0x0800) zero=TileFlip(8+(tilex<<3),addr,pal);\r |
478 | else zero=TileNorm(8+(tilex<<3),addr,pal);\r |
479 | \r |
480 | if (zero) blank=code; // We know this tile is blank now\r |
cc68a136 |
481 | }\r |
81fda4e8 |
482 | }\r |
483 | else\r |
484 | {\r |
485 | for (; tilex < tend; tilex++)\r |
486 | {\r |
487 | int addr=0,zero=0;\r |
07abbab1 |
488 | int pal;\r |
81fda4e8 |
489 | \r |
490 | code=Pico.vram[nametab+tilex];\r |
491 | if(code==blank) continue;\r |
492 | if((code>>15) != prio) {\r |
602133e1 |
493 | rendstatus |= PDRAW_WND_DIFF_PRIO;\r |
81fda4e8 |
494 | continue;\r |
495 | }\r |
cc68a136 |
496 | \r |
81fda4e8 |
497 | pal=((code>>9)&0x30);\r |
cc68a136 |
498 | \r |
07abbab1 |
499 | if (prio) {\r |
500 | int *zb = (int *)(HighCol+8+(tilex<<3));\r |
501 | *zb++ &= 0x3f3f3f3f;\r |
502 | *zb &= 0x3f3f3f3f;\r |
cc68a136 |
503 | } else {\r |
504 | pal |= 0x40;\r |
505 | }\r |
cc68a136 |
506 | \r |
81fda4e8 |
507 | // Get tile address/2:\r |
508 | addr=(code&0x7ff)<<4;\r |
509 | if (code&0x1000) addr+=14-ty; else addr+=ty; // Y-flip\r |
cc68a136 |
510 | \r |
81fda4e8 |
511 | if (code&0x0800) zero=TileFlip(8+(tilex<<3),addr,pal);\r |
512 | else zero=TileNorm(8+(tilex<<3),addr,pal);\r |
cc68a136 |
513 | \r |
81fda4e8 |
514 | if (zero) blank=code; // We know this tile is blank now\r |
515 | }\r |
cc68a136 |
516 | }\r |
cc68a136 |
517 | }\r |
518 | \r |
519 | // --------------------------------------------\r |
520 | \r |
81fda4e8 |
521 | static void DrawTilesFromCacheShPrep(void)\r |
522 | {\r |
602133e1 |
523 | // as some layer has covered whole line with hi priority tiles,\r |
524 | // we can process whole line and then act as if sh/hi mode was off.\r |
525 | int c = 320/4, *zb = (int *)(HighCol+8);\r |
526 | rendstatus |= PDRAW_SHHI_DONE;\r |
527 | while (c--)\r |
81fda4e8 |
528 | {\r |
07abbab1 |
529 | *zb++ &= 0x3f3f3f3f;\r |
81fda4e8 |
530 | }\r |
531 | }\r |
532 | \r |
7a7c6476 |
533 | static void DrawTilesFromCache(int *hc, int sh, int rlim)\r |
cc68a136 |
534 | {\r |
740da8c6 |
535 | int code, addr, dx;\r |
cc68a136 |
536 | int pal;\r |
cc68a136 |
537 | \r |
538 | // *ts->hc++ = code | (dx<<16) | (ty<<25); // cache it\r |
539 | \r |
602133e1 |
540 | if (sh && (rendstatus & (PDRAW_SHHI_DONE|PDRAW_PLANE_HI_PRIO)))\r |
740da8c6 |
541 | {\r |
602133e1 |
542 | if (!(rendstatus & PDRAW_SHHI_DONE))\r |
543 | DrawTilesFromCacheShPrep();\r |
740da8c6 |
544 | sh = 0;\r |
545 | }\r |
cc68a136 |
546 | \r |
81fda4e8 |
547 | if (!sh)\r |
740da8c6 |
548 | {\r |
81fda4e8 |
549 | short blank=-1; // The tile we know is blank\r |
7a7c6476 |
550 | while ((code=*hc++)) {\r |
81fda4e8 |
551 | int zero;\r |
552 | if((short)code == blank) continue;\r |
740da8c6 |
553 | // Get tile address/2:\r |
554 | addr=(code&0x7ff)<<4;\r |
555 | addr+=(unsigned int)code>>25; // y offset into tile\r |
556 | dx=(code>>16)&0x1ff;\r |
740da8c6 |
557 | \r |
558 | pal=((code>>9)&0x30);\r |
7a7c6476 |
559 | if (rlim-dx < 0) goto last_cut_tile;\r |
740da8c6 |
560 | \r |
81fda4e8 |
561 | if (code&0x0800) zero=TileFlip(dx,addr,pal);\r |
562 | else zero=TileNorm(dx,addr,pal);\r |
563 | \r |
564 | if (zero) blank=(short)code;\r |
cc68a136 |
565 | }\r |
740da8c6 |
566 | }\r |
567 | else\r |
568 | {\r |
7a7c6476 |
569 | while ((code=*hc++)) {\r |
81fda4e8 |
570 | unsigned char *zb;\r |
740da8c6 |
571 | // Get tile address/2:\r |
572 | addr=(code&0x7ff)<<4;\r |
573 | addr+=(unsigned int)code>>25; // y offset into tile\r |
574 | dx=(code>>16)&0x1ff;\r |
81fda4e8 |
575 | zb = HighCol+dx;\r |
07abbab1 |
576 | *zb++ &= 0x3f; *zb++ &= 0x3f; *zb++ &= 0x3f; *zb++ &= 0x3f;\r |
577 | *zb++ &= 0x3f; *zb++ &= 0x3f; *zb++ &= 0x3f; *zb++ &= 0x3f;\r |
cc68a136 |
578 | \r |
740da8c6 |
579 | pal=((code>>9)&0x30);\r |
7a7c6476 |
580 | if (rlim-dx < 0) goto last_cut_tile;\r |
cc68a136 |
581 | \r |
81fda4e8 |
582 | if (code&0x0800) TileFlip(dx,addr,pal);\r |
583 | else TileNorm(dx,addr,pal);\r |
7a7c6476 |
584 | }\r |
585 | }\r |
586 | return;\r |
587 | \r |
588 | last_cut_tile:\r |
589 | {\r |
590 | unsigned int t, pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
591 | unsigned char *pd = HighCol+dx;\r |
592 | if (!pack) return;\r |
593 | if (code&0x0800)\r |
594 | {\r |
595 | switch (rlim-dx+8)\r |
596 | {\r |
597 | case 7: t=pack&0x00000f00; if (t) pd[6]=(unsigned char)(pal|(t>> 8)); // "break" is left out intentionally\r |
598 | case 6: t=pack&0x000000f0; if (t) pd[5]=(unsigned char)(pal|(t>> 4));\r |
599 | case 5: t=pack&0x0000000f; if (t) pd[4]=(unsigned char)(pal|(t ));\r |
600 | case 4: t=pack&0xf0000000; if (t) pd[3]=(unsigned char)(pal|(t>>28));\r |
601 | case 3: t=pack&0x0f000000; if (t) pd[2]=(unsigned char)(pal|(t>>24));\r |
602 | case 2: t=pack&0x00f00000; if (t) pd[1]=(unsigned char)(pal|(t>>20));\r |
603 | case 1: t=pack&0x000f0000; if (t) pd[0]=(unsigned char)(pal|(t>>16));\r |
604 | default: break;\r |
605 | }\r |
606 | }\r |
607 | else\r |
608 | {\r |
609 | switch (rlim-dx+8)\r |
610 | {\r |
611 | case 7: t=pack&0x00f00000; if (t) pd[6]=(unsigned char)(pal|(t>>20));\r |
612 | case 6: t=pack&0x0f000000; if (t) pd[5]=(unsigned char)(pal|(t>>24));\r |
613 | case 5: t=pack&0xf0000000; if (t) pd[4]=(unsigned char)(pal|(t>>28));\r |
614 | case 4: t=pack&0x0000000f; if (t) pd[3]=(unsigned char)(pal|(t ));\r |
615 | case 3: t=pack&0x000000f0; if (t) pd[2]=(unsigned char)(pal|(t>> 4));\r |
616 | case 2: t=pack&0x00000f00; if (t) pd[1]=(unsigned char)(pal|(t>> 8));\r |
617 | case 1: t=pack&0x0000f000; if (t) pd[0]=(unsigned char)(pal|(t>>12));\r |
618 | default: break;\r |
619 | }\r |
740da8c6 |
620 | }\r |
cc68a136 |
621 | }\r |
622 | }\r |
623 | \r |
624 | // --------------------------------------------\r |
625 | \r |
626 | // Index + 0 : hhhhvvvv ab--hhvv yyyyyyyy yyyyyyyy // a: offscreen h, b: offs. v, h: horiz. size\r |
627 | // Index + 4 : xxxxxxxx xxxxxxxx pccvhnnn nnnnnnnn // x: x coord + 8\r |
628 | \r |
07abbab1 |
629 | static void DrawSprite(int *sprite, int sh, int as)\r |
cc68a136 |
630 | {\r |
631 | int width=0,height=0;\r |
632 | int row=0,code=0;\r |
633 | int pal;\r |
634 | int tile=0,delta=0;\r |
635 | int sx, sy;\r |
636 | int (*fTileFunc)(int sx,int addr,int pal);\r |
637 | \r |
638 | // parse the sprite data\r |
639 | sy=sprite[0];\r |
640 | code=sprite[1];\r |
641 | sx=code>>16; // X\r |
642 | width=sy>>28;\r |
643 | height=(sy>>24)&7; // Width and height in tiles\r |
644 | sy=(sy<<16)>>16; // Y\r |
645 | \r |
646 | row=Scanline-sy; // Row of the sprite we are on\r |
647 | \r |
648 | if (code&0x1000) row=(height<<3)-1-row; // Flip Y\r |
649 | \r |
07abbab1 |
650 | tile=code + (row>>3); // Tile number increases going down\r |
cc68a136 |
651 | delta=height; // Delta to increase tile by going right\r |
652 | if (code&0x0800) { tile+=delta*(width-1); delta=-delta; } // Flip X\r |
653 | \r |
07abbab1 |
654 | tile &= 0x7ff; tile<<=4; tile+=(row&7)<<1; // Tile address\r |
655 | \r |
656 | pal=(code>>9)&0x30;\r |
cc68a136 |
657 | \r |
07abbab1 |
658 | // assume there will be no sprites with both normal and operator pixels..\r |
659 | if ((code&0x8000) || (sh && pal == 0x30) || as) {\r |
660 | *HighCacheS_ptr++ = ((code&0x8000)<<16)|(tile<<16)|((code&0x0800)<<5)|((sx<<6)&0x0000ffc0)|pal|((sprite[0]>>16)&0xf);\r |
661 | // we need all for accurate sprites, cached will be used to do proper priorities\r |
662 | if (!as && (code&0x8000)) return;\r |
cc68a136 |
663 | }\r |
cc68a136 |
664 | \r |
cc68a136 |
665 | delta<<=4; // Delta of address\r |
07abbab1 |
666 | pal|=((sh|as)<<6);\r |
e5fa9817 |
667 | \r |
668 | if (sh && (code&0x6000) == 0x6000) {\r |
07abbab1 |
669 | if(code&0x0800) fTileFunc=TileFlipSH_noop;\r |
670 | else fTileFunc=TileNormSH_noop;\r |
e5fa9817 |
671 | } else {\r |
672 | if(code&0x0800) fTileFunc=TileFlip;\r |
673 | else fTileFunc=TileNorm;\r |
cc68a136 |
674 | }\r |
675 | \r |
676 | for (; width; width--,sx+=8,tile+=delta)\r |
677 | {\r |
678 | if(sx<=0) continue;\r |
679 | if(sx>=328) break; // Offscreen\r |
680 | \r |
681 | tile&=0x7fff; // Clip tile address\r |
e5fa9817 |
682 | fTileFunc(sx,tile,pal);\r |
cc68a136 |
683 | }\r |
684 | }\r |
e5fa9817 |
685 | #endif\r |
cc68a136 |
686 | \r |
687 | static void DrawSpriteInterlace(unsigned int *sprite)\r |
688 | {\r |
689 | int width=0,height=0;\r |
690 | int row=0,code=0;\r |
691 | int pal;\r |
692 | int tile=0,delta=0;\r |
693 | int sx, sy;\r |
694 | \r |
695 | // parse the sprite data\r |
696 | sy=sprite[0];\r |
697 | height=sy>>24;\r |
698 | sy=(sy&0x3ff)-0x100; // Y\r |
699 | width=(height>>2)&3; height&=3;\r |
700 | width++; height++; // Width and height in tiles\r |
701 | \r |
702 | row=(Scanline<<1)-sy; // Row of the sprite we are on\r |
703 | \r |
704 | code=sprite[1];\r |
705 | sx=((code>>16)&0x1ff)-0x78; // X\r |
706 | \r |
707 | if (code&0x1000) row^=(16<<height)-1; // Flip Y\r |
708 | \r |
709 | tile=code&0x3ff; // Tile number\r |
710 | tile+=row>>4; // Tile number increases going down\r |
711 | delta=height; // Delta to increase tile by going right\r |
712 | if (code&0x0800) { tile+=delta*(width-1); delta=-delta; } // Flip X\r |
713 | \r |
714 | tile<<=5; tile+=(row&15)<<1; // Tile address\r |
715 | \r |
716 | delta<<=5; // Delta of address\r |
717 | pal=((code>>9)&0x30); // Get palette pointer\r |
718 | \r |
719 | for (; width; width--,sx+=8,tile+=delta)\r |
720 | {\r |
721 | if(sx<=0) continue;\r |
722 | if(sx>=328) break; // Offscreen\r |
723 | \r |
724 | tile&=0x7fff; // Clip tile address\r |
725 | if (code&0x0800) TileFlip(sx,tile,pal);\r |
726 | else TileNorm(sx,tile,pal);\r |
727 | }\r |
728 | }\r |
729 | \r |
730 | \r |
e5fa9817 |
731 | static void DrawAllSpritesInterlace(int *hcache, int maxwidth, int pri, int sh)\r |
cc68a136 |
732 | {\r |
733 | struct PicoVideo *pvid=&Pico.video;\r |
734 | int i,u,table,link=0,sline=Scanline<<1;\r |
735 | unsigned int *sprites[80]; // Sprite index\r |
736 | \r |
737 | table=pvid->reg[5]&0x7f;\r |
738 | if (pvid->reg[12]&1) table&=0x7e; // Lowest bit 0 in 40-cell mode\r |
739 | table<<=8; // Get sprite table address/2\r |
740 | \r |
741 | for (i=u=0; u < 80 && i < 21; u++)\r |
742 | {\r |
743 | unsigned int *sprite;\r |
744 | int code, sx, sy, height;\r |
745 | \r |
746 | sprite=(unsigned int *)(Pico.vram+((table+(link<<2))&0x7ffc)); // Find sprite\r |
747 | \r |
748 | // get sprite info\r |
749 | code = sprite[0];\r |
750 | sx = sprite[1];\r |
751 | if(((sx>>15)&1) != pri) goto nextsprite; // wrong priority sprite\r |
752 | \r |
753 | // check if it is on this line\r |
754 | sy = (code&0x3ff)-0x100;\r |
755 | height = (((code>>24)&3)+1)<<4;\r |
756 | if(sline < sy || sline >= sy+height) goto nextsprite; // no\r |
757 | \r |
758 | // check if sprite is not hidden offscreen\r |
759 | sx = (sx>>16)&0x1ff;\r |
760 | sx -= 0x78; // Get X coordinate + 8\r |
761 | if(sx <= -8*3 || sx >= maxwidth) goto nextsprite;\r |
762 | \r |
763 | // sprite is good, save it's pointer\r |
764 | sprites[i++]=sprite;\r |
765 | \r |
766 | nextsprite:\r |
767 | // Find next sprite\r |
768 | link=(code>>16)&0x7f;\r |
769 | if(!link) break; // End of sprites\r |
770 | }\r |
771 | \r |
772 | // Go through sprites backwards:\r |
773 | for (i-- ;i>=0; i--)\r |
774 | DrawSpriteInterlace(sprites[i]);\r |
775 | }\r |
776 | \r |
777 | \r |
778 | #ifndef _ASM_DRAW_C\r |
e5fa9817 |
779 | static void DrawSpritesFromCache(int *hc, int maxwidth, int prio, int sh)\r |
cc68a136 |
780 | {\r |
781 | int code, tile, sx, delta, width;\r |
782 | int pal;\r |
783 | int (*fTileFunc)(int sx,int addr,int pal);\r |
784 | \r |
07abbab1 |
785 | // prio[31]:tile[30:17]:flipx[16]:sx[15:6]:pal[5:4]:delta_width[3:0]\r |
cc68a136 |
786 | \r |
07abbab1 |
787 | while ((code=*hc++))\r |
788 | {\r |
cc68a136 |
789 | pal=(code&0x30);\r |
790 | delta=code&0xf;\r |
791 | width=delta>>2; delta&=3;\r |
792 | width++; delta++; // Width and height in tiles\r |
793 | if (code&0x10000) delta=-delta; // Flip X\r |
794 | delta<<=4;\r |
07abbab1 |
795 | tile=((unsigned int)code>>17)<<1; // also has prio\r |
cc68a136 |
796 | sx=(code<<16)>>22; // sx can be negative (start offscreen), so sign extend\r |
797 | \r |
07abbab1 |
798 | if (sh && pal == 0x30)\r |
799 | {\r |
800 | if (code & 0x80000000) // hi priority\r |
801 | {\r |
802 | if(code&0x10000) fTileFunc=TileFlipSH;\r |
803 | else fTileFunc=TileNormSH;\r |
804 | } else {\r |
805 | if(code&0x10000) fTileFunc=TileFlipSH_onlyop_lp;\r |
806 | else fTileFunc=TileNormSH_onlyop_lp;\r |
807 | }\r |
cc68a136 |
808 | } else {\r |
809 | if(code&0x10000) fTileFunc=TileFlip;\r |
810 | else fTileFunc=TileNorm;\r |
811 | }\r |
812 | \r |
813 | for (; width; width--,sx+=8,tile+=delta)\r |
814 | {\r |
815 | if(sx<=0) continue;\r |
816 | if(sx>=328) break; // Offscreen\r |
817 | \r |
818 | tile&=0x7fff; // Clip tile address\r |
819 | fTileFunc(sx,tile,pal);\r |
820 | }\r |
821 | }\r |
822 | }\r |
823 | #endif\r |
824 | \r |
e5fa9817 |
825 | static void DrawSpritesFromCacheAS(int *hc, int maxwidth, int prio, int sh)\r |
826 | {\r |
827 | int code, tile, sx, delta, width;\r |
07abbab1 |
828 | int pal, *hce, *hco;\r |
e5fa9817 |
829 | int (*fTileFunc)(int sx,int addr,int pal);\r |
830 | \r |
07abbab1 |
831 | // prio[31]:tile[30:17]:flipx[16]:sx[15:6]:pal[5:4]:delta_width[3:0]\r |
e5fa9817 |
832 | \r |
07abbab1 |
833 | /* walk the sprite cache backwards.. */\r |
834 | hco = hce = HighCacheS_ptr;\r |
835 | while (hce > hc)\r |
836 | {\r |
837 | code=*(--hce);\r |
e5fa9817 |
838 | pal=(code&0x30);\r |
839 | delta=code&0xf;\r |
840 | width=delta>>2; delta&=3;\r |
841 | width++; delta++; // Width and height in tiles\r |
842 | if (code&0x10000) delta=-delta; // Flip X\r |
843 | delta<<=4;\r |
844 | tile=((unsigned int)code>>17)<<1;\r |
845 | sx=(code<<16)>>22; // sx can be negative (start offscreen), so sign extend\r |
846 | \r |
07abbab1 |
847 | if (code & 0x80000000) // hi priority\r |
848 | {\r |
849 | if (sh && pal == 0x30)\r |
850 | {\r |
851 | if(code&0x10000) fTileFunc=TileFlipAS_noop;\r |
852 | else fTileFunc=TileNormAS_noop;\r |
853 | *(--hco) = code; /* save for later */\r |
854 | } else {\r |
855 | if(code&0x10000) fTileFunc=TileFlipAS;\r |
856 | else fTileFunc=TileNormAS;\r |
857 | }\r |
e5fa9817 |
858 | } else {\r |
07abbab1 |
859 | if(code&0x10000) fTileFunc=TileFlipAS_onlymark;\r |
860 | else fTileFunc=TileNormAS_onlymark;\r |
e5fa9817 |
861 | }\r |
862 | \r |
07abbab1 |
863 | pal |= 0x80;\r |
864 | for (; width; width--,sx+=8,tile+=delta)\r |
865 | {\r |
866 | if(sx<=0) continue;\r |
867 | if(sx>=328) break; // Offscreen\r |
868 | \r |
869 | tile&=0x7fff; // Clip tile address\r |
870 | fTileFunc(sx,tile,pal);\r |
871 | }\r |
872 | }\r |
873 | \r |
874 | if (!sh) return;\r |
875 | \r |
876 | /* nasty 1: remove 'sprite' flags */\r |
877 | {\r |
878 | int c = 320/4, *zb = (int *)(HighCol+8);\r |
879 | while (c--)\r |
880 | {\r |
881 | *zb++ &= 0x7f7f7f7f;\r |
882 | }\r |
883 | }\r |
884 | \r |
885 | /* nasty 2: loop once more and do operator colors */\r |
886 | while ((code=*hco++))\r |
887 | {\r |
888 | pal=(code&0x30);\r |
889 | if (pal != 0x30) continue;\r |
890 | delta=code&0xf;\r |
891 | width=delta>>2; delta&=3;\r |
892 | width++; delta++;\r |
893 | if (code&0x10000) delta=-delta; // Flip X\r |
894 | delta<<=4;\r |
895 | tile=((unsigned int)code>>17)<<1;\r |
896 | sx=(code<<16)>>22;\r |
897 | \r |
898 | if (code & 0x80000000)\r |
899 | {\r |
900 | if(code&0x10000) fTileFunc=TileFlipSH;\r |
901 | else fTileFunc=TileNormSH;\r |
902 | } else {\r |
903 | if(code&0x10000) fTileFunc=TileFlipSH_onlyop_lp;\r |
904 | else fTileFunc=TileNormSH_onlyop_lp;\r |
905 | }\r |
906 | \r |
907 | pal |= 0x80;\r |
e5fa9817 |
908 | for (; width; width--,sx+=8,tile+=delta)\r |
909 | {\r |
910 | if(sx<=0) continue;\r |
911 | if(sx>=328) break; // Offscreen\r |
912 | \r |
913 | tile&=0x7fff; // Clip tile address\r |
914 | fTileFunc(sx,tile,pal);\r |
915 | }\r |
916 | }\r |
917 | }\r |
918 | \r |
cc68a136 |
919 | \r |
07abbab1 |
920 | \r |
cc68a136 |
921 | // Index + 0 : ----hhvv -lllllll -------y yyyyyyyy\r |
922 | // Index + 4 : -------x xxxxxxxx pccvhnnn nnnnnnnn\r |
923 | // v\r |
924 | // Index + 0 : hhhhvvvv ab--hhvv yyyyyyyy yyyyyyyy // a: offscreen h, b: offs. v, h: horiz. size\r |
925 | // Index + 4 : xxxxxxxx xxxxxxxx pccvhnnn nnnnnnnn // x: x coord + 8\r |
926 | \r |
927 | static void PrepareSprites(int full)\r |
928 | {\r |
929 | struct PicoVideo *pvid=&Pico.video;\r |
930 | int u=0,link=0,sblocks=0;\r |
931 | int table=0;\r |
932 | int *pd = HighPreSpr;\r |
933 | \r |
934 | table=pvid->reg[5]&0x7f;\r |
935 | if (pvid->reg[12]&1) table&=0x7e; // Lowest bit 0 in 40-cell mode\r |
936 | table<<=8; // Get sprite table address/2\r |
937 | \r |
938 | if (!full)\r |
939 | {\r |
940 | int pack;\r |
941 | // updates: tilecode, sx\r |
942 | for (u=0; u < 80 && (pack = *pd); u++, pd+=2)\r |
943 | {\r |
944 | unsigned int *sprite;\r |
945 | int code, code2, sx, sy, skip=0;\r |
946 | \r |
947 | sprite=(unsigned int *)(Pico.vram+((table+(link<<2))&0x7ffc)); // Find sprite\r |
948 | \r |
949 | // parse sprite info\r |
950 | code = sprite[0];\r |
951 | code2 = sprite[1];\r |
952 | code2 &= ~0xfe000000;\r |
953 | code2 -= 0x00780000; // Get X coordinate + 8 in upper 16 bits\r |
954 | sx = code2>>16;\r |
955 | \r |
956 | if((sx <= 8-((pack>>28)<<3) && sx >= -0x76) || sx >= 328) skip=1<<23;\r |
957 | else if ((sy = (pack<<16)>>16) < 240 && sy > -32) {\r |
958 | int sbl = (2<<(pack>>28))-1;\r |
959 | sblocks |= sbl<<(sy>>3);\r |
960 | }\r |
961 | \r |
962 | *pd = (pack&~(1<<23))|skip;\r |
963 | *(pd+1) = code2;\r |
964 | \r |
965 | // Find next sprite\r |
966 | link=(code>>16)&0x7f;\r |
967 | if(!link) break; // End of sprites\r |
968 | }\r |
969 | SpriteBlocks |= sblocks;\r |
970 | }\r |
971 | else\r |
972 | {\r |
973 | for (; u < 80; u++)\r |
974 | {\r |
975 | unsigned int *sprite;\r |
976 | int code, code2, sx, sy, hv, height, width, skip=0, sx_min;\r |
977 | \r |
978 | sprite=(unsigned int *)(Pico.vram+((table+(link<<2))&0x7ffc)); // Find sprite\r |
979 | \r |
980 | // parse sprite info\r |
981 | code = sprite[0];\r |
982 | sy = (code&0x1ff)-0x80;\r |
983 | hv = (code>>24)&0xf;\r |
984 | height = (hv&3)+1;\r |
985 | \r |
381eea9b |
986 | if (sy > 240 || sy + (height<<3) <= 0) skip|=1<<22; // sprite offscreen (completely, y)\r |
6d7acf9e |
987 | \r |
cc68a136 |
988 | width = (hv>>2)+1;\r |
989 | code2 = sprite[1];\r |
990 | sx = (code2>>16)&0x1ff;\r |
991 | sx -= 0x78; // Get X coordinate + 8\r |
992 | sx_min = 8-(width<<3);\r |
6d7acf9e |
993 | \r |
381eea9b |
994 | if ((sx <= sx_min && sx >= -0x76) || sx >= 328) skip|=1<<23; // offscreen x\r |
cc68a136 |
995 | else if (sx > sx_min && !skip) {\r |
996 | int sbl = (2<<height)-1;\r |
997 | int shi = sy>>3;\r |
998 | if(shi < 0) shi=0; // negative sy\r |
999 | sblocks |= sbl<<shi;\r |
1000 | }\r |
6d7acf9e |
1001 | \r |
cc68a136 |
1002 | *pd++ = (width<<28)|(height<<24)|skip|(hv<<16)|((unsigned short)sy);\r |
1003 | *pd++ = (sx<<16)|((unsigned short)code2);\r |
6d7acf9e |
1004 | \r |
cc68a136 |
1005 | // Find next sprite\r |
1006 | link=(code>>16)&0x7f;\r |
1007 | if(!link) break; // End of sprites\r |
1008 | }\r |
1009 | SpriteBlocks = sblocks;\r |
1010 | *pd = 0; // terminate\r |
1011 | }\r |
1012 | }\r |
1013 | \r |
1014 | static void DrawAllSprites(int *hcache, int maxwidth, int prio, int sh)\r |
1015 | {\r |
1016 | int i,u,n;\r |
381eea9b |
1017 | int sx1seen = 0; // sprite with x coord 1 or 0 seen\r |
cc68a136 |
1018 | int ntiles = 0; // tile counter for sprite limit emulation\r |
1019 | int *sprites[40]; // Sprites to draw in fast mode\r |
381eea9b |
1020 | int max_line_sprites = 20; // 20 sprites, 40 tiles\r |
1021 | int *ps, pack, rs = rendstatus, scan = Scanline;\r |
cc68a136 |
1022 | \r |
602133e1 |
1023 | if (rs & (PDRAW_SPRITES_MOVED|PDRAW_DIRTY_SPRITES)) {\r |
cc68a136 |
1024 | //dprintf("PrepareSprites(%i) [%i]", (rs>>4)&1, scan);\r |
602133e1 |
1025 | PrepareSprites(rs & PDRAW_DIRTY_SPRITES);\r |
1026 | rendstatus = rs & ~(PDRAW_SPRITES_MOVED|PDRAW_DIRTY_SPRITES);\r |
cc68a136 |
1027 | }\r |
e5fa9817 |
1028 | if (!(SpriteBlocks & (1<<(scan>>3)))) { *hcache = 0; return; }\r |
cc68a136 |
1029 | \r |
381eea9b |
1030 | if (PicoOpt & POPT_DIS_SPRITE_LIM)\r |
1031 | max_line_sprites = 80;\r |
1032 | \r |
07abbab1 |
1033 | HighCacheS_ptr = hcache;\r |
cc68a136 |
1034 | ps = HighPreSpr;\r |
1035 | \r |
1036 | // Index + 0 : hhhhvvvv ab--hhvv yyyyyyyy yyyyyyyy // a: offscreen h, b: offs. v, h: horiz. size\r |
1037 | // Index + 4 : xxxxxxxx xxxxxxxx pccvhnnn nnnnnnnn // x: x coord + 8\r |
1038 | \r |
381eea9b |
1039 | for (i=u=n=0; (pack = *ps) && n < max_line_sprites; ps+=2, u++)\r |
cc68a136 |
1040 | {\r |
1041 | int sx, sy, row, pack2;\r |
1042 | \r |
381eea9b |
1043 | if (pack & 0x00400000) continue;\r |
cc68a136 |
1044 | \r |
1045 | // get sprite info\r |
1046 | pack2 = *(ps+1);\r |
1047 | sx = pack2>>16;\r |
1048 | sy = (pack <<16)>>16;\r |
1049 | row = scan-sy;\r |
1050 | \r |
6c254710 |
1051 | // elprintf(EL_ANOMALY, "x: %4i y: %4i p %i %ix%i", sx, sy, (pack2>>15)&1, (pack>>28)<<3, (pack>>21)&0x38);\r |
1052 | \r |
381eea9b |
1053 | if (sx == -0x77) sx1seen|=1; // for masking mode 2\r |
cc68a136 |
1054 | \r |
1055 | // check if it is on this line\r |
381eea9b |
1056 | if (row < 0 || row >= ((pack>>21)&0x38)) continue; // no\r |
6c254710 |
1057 | \r |
1058 | // masking sprite?\r |
1059 | if (sx == -0x78) {\r |
1060 | if (n > 0) break; // masked\r |
1061 | continue;\r |
1062 | }\r |
1063 | \r |
1064 | n++; // number of sprites on this line (both visible and hidden, except of x=0)\r |
cc68a136 |
1065 | \r |
1066 | // sprite limit\r |
1067 | ntiles += pack>>28;\r |
381eea9b |
1068 | if (ntiles > max_line_sprites*2) break;\r |
cc68a136 |
1069 | \r |
381eea9b |
1070 | if (pack & 0x00800000) continue;\r |
cc68a136 |
1071 | \r |
cc68a136 |
1072 | // sprite is good, save it's pointer\r |
1073 | sprites[i++]=ps;\r |
1074 | }\r |
1075 | \r |
e5fa9817 |
1076 | n = (rs & PDRAW_ACC_SPRITES) ? 1 : 0;\r |
1077 | \r |
cc68a136 |
1078 | // Go through sprites backwards:\r |
e5fa9817 |
1079 | for (i--; i>=0; i--)\r |
07abbab1 |
1080 | DrawSprite(sprites[i],sh,n);\r |
cc68a136 |
1081 | \r |
e5fa9817 |
1082 | // terminate cache list\r |
07abbab1 |
1083 | *HighCacheS_ptr = 0;\r |
cc68a136 |
1084 | }\r |
1085 | \r |
1086 | \r |
1087 | // --------------------------------------------\r |
1088 | \r |
1089 | #ifndef _ASM_DRAW_C\r |
1090 | static void BackFill(int reg7, int sh)\r |
1091 | {\r |
b542be46 |
1092 | unsigned int back;\r |
cc68a136 |
1093 | \r |
1094 | // Start with a blank scanline (background colour):\r |
1095 | back=reg7&0x3f;\r |
1096 | back|=sh<<6;\r |
1097 | back|=back<<8;\r |
1098 | back|=back<<16;\r |
1099 | \r |
b542be46 |
1100 | memset32((int *)(HighCol+8), back, 320/4);\r |
cc68a136 |
1101 | }\r |
1102 | #endif\r |
1103 | \r |
1104 | // --------------------------------------------\r |
1105 | \r |
1106 | unsigned short HighPal[0x100];\r |
1107 | \r |
1108 | #ifndef _ASM_DRAW_C\r |
1109 | static void FinalizeLineBGR444(int sh)\r |
1110 | {\r |
1111 | unsigned short *pd=DrawLineDest;\r |
1112 | unsigned char *ps=HighCol+8;\r |
1113 | unsigned short *pal=Pico.cram;\r |
e5fa9817 |
1114 | int len, i, t, mask=0xff;\r |
cc68a136 |
1115 | \r |
1116 | if (Pico.video.reg[12]&1) {\r |
1117 | len = 320;\r |
1118 | } else {\r |
602133e1 |
1119 | if(!(PicoOpt&POPT_DIS_32C_BORDER)) pd+=32;\r |
cc68a136 |
1120 | len = 256;\r |
1121 | }\r |
1122 | \r |
1123 | if(sh) {\r |
1124 | pal=HighPal;\r |
1125 | if(Pico.m.dirtyPal) {\r |
1126 | blockcpy(pal, Pico.cram, 0x40*2);\r |
1127 | // shadowed pixels\r |
1128 | for(i = 0x3f; i >= 0; i--)\r |
1129 | pal[0x40|i] = pal[0xc0|i] = (unsigned short)((pal[i]>>1)&0x0777);\r |
1130 | // hilighted pixels\r |
1131 | for(i = 0x3f; i >= 0; i--) {\r |
1132 | t=pal[i]&0xeee;t+=0x444;if(t&0x10)t|=0xe;if(t&0x100)t|=0xe0;if(t&0x1000)t|=0xe00;t&=0xeee;\r |
1133 | pal[0x80|i]=(unsigned short)t;\r |
1134 | }\r |
1135 | Pico.m.dirtyPal = 0;\r |
1136 | }\r |
1137 | }\r |
1138 | \r |
e5fa9817 |
1139 | if (!sh && (rendstatus & PDRAW_ACC_SPRITES))\r |
1140 | mask=0x3f; // accurate sprites\r |
1141 | \r |
cc68a136 |
1142 | for(i = 0; i < len; i++)\r |
e5fa9817 |
1143 | pd[i] = pal[ps[i] & mask];\r |
cc68a136 |
1144 | }\r |
1145 | \r |
1146 | \r |
1147 | static void FinalizeLineRGB555(int sh)\r |
1148 | {\r |
1149 | unsigned short *pd=DrawLineDest;\r |
1150 | unsigned char *ps=HighCol+8;\r |
1151 | unsigned short *pal=HighPal;\r |
1152 | int len, i, t, dirtyPal = Pico.m.dirtyPal;\r |
1153 | \r |
70357ce5 |
1154 | if (dirtyPal)\r |
1155 | {\r |
1156 | unsigned int *spal=(void *)Pico.cram;\r |
1157 | unsigned int *dpal=(void *)HighPal;\r |
1158 | for (i = 0x3f/2; i >= 0; i--)\r |
1159 | #ifdef USE_BGR555\r |
1160 | dpal[i] = ((spal[i]&0x000f000f)<< 1)|((spal[i]&0x00f000f0)<<3)|((spal[i]&0x0f000f00)<<4);\r |
1161 | #else\r |
1162 | dpal[i] = ((spal[i]&0x000f000f)<<12)|((spal[i]&0x00f000f0)<<3)|((spal[i]&0x0f000f00)>>7);\r |
1163 | #endif\r |
cc68a136 |
1164 | Pico.m.dirtyPal = 0;\r |
1165 | }\r |
1166 | \r |
70357ce5 |
1167 | if (sh)\r |
1168 | {\r |
1169 | if (dirtyPal) {\r |
cc68a136 |
1170 | // shadowed pixels\r |
70357ce5 |
1171 | for (i = 0x3f; i >= 0; i--)\r |
cc68a136 |
1172 | pal[0x40|i] = pal[0xc0|i] = (unsigned short)((pal[i]>>1)&0x738e);\r |
1173 | // hilighted pixels\r |
70357ce5 |
1174 | for (i = 0x3f; i >= 0; i--) {\r |
cc68a136 |
1175 | t=pal[i]&0xe71c;t+=0x4208;if(t&0x20)t|=0x1c;if(t&0x800)t|=0x700;if(t&0x10000)t|=0xe000;t&=0xe71c;\r |
1176 | pal[0x80|i]=(unsigned short)t;\r |
1177 | }\r |
1178 | }\r |
1179 | }\r |
1180 | \r |
70357ce5 |
1181 | if (Pico.video.reg[12]&1) {\r |
1182 | len = 320;\r |
1183 | } else {\r |
602133e1 |
1184 | if (!(PicoOpt&POPT_DIS_32C_BORDER)) pd+=32;\r |
70357ce5 |
1185 | len = 256;\r |
1186 | }\r |
1187 | \r |
e5fa9817 |
1188 | {\r |
70357ce5 |
1189 | #ifndef PSP\r |
e5fa9817 |
1190 | int mask=0xff;\r |
1191 | if (!sh && (rendstatus & PDRAW_ACC_SPRITES))\r |
1192 | mask=0x3f; // accurate sprites, upper bits are priority stuff\r |
1193 | \r |
1194 | for (i = 0; i < len; i++)\r |
1195 | pd[i] = pal[ps[i] & mask];\r |
70357ce5 |
1196 | #else\r |
70357ce5 |
1197 | extern void amips_clut(unsigned short *dst, unsigned char *src, unsigned short *pal, int count);\r |
e5fa9817 |
1198 | extern void amips_clut_6bit(unsigned short *dst, unsigned char *src, unsigned short *pal, int count);\r |
1199 | if (!sh && (rendstatus & PDRAW_ACC_SPRITES))\r |
1200 | amips_clut_6bit(pd, ps, pal, len);\r |
1201 | else amips_clut(pd, ps, pal, len);\r |
70357ce5 |
1202 | #endif\r |
e5fa9817 |
1203 | }\r |
cc68a136 |
1204 | }\r |
1205 | #endif\r |
1206 | \r |
1207 | static void FinalizeLine8bit(int sh)\r |
1208 | {\r |
1209 | unsigned char *pd=DrawLineDest;\r |
1210 | int len, rs = rendstatus;\r |
1211 | static int dirty_count;\r |
1212 | \r |
e5fa9817 |
1213 | if (!sh && !(rs & PDRAW_ACC_SPRITES) && Pico.m.dirtyPal == 1 && Scanline < 222)\r |
602133e1 |
1214 | {\r |
cc68a136 |
1215 | // a hack for mid-frame palette changes\r |
602133e1 |
1216 | if (!(rs & PDRAW_SONIC_MODE))\r |
cc68a136 |
1217 | dirty_count = 1;\r |
1218 | else dirty_count++;\r |
602133e1 |
1219 | rs |= PDRAW_SONIC_MODE;\r |
cc68a136 |
1220 | rendstatus = rs;\r |
1221 | if (dirty_count == 3) {\r |
1222 | blockcpy(HighPal, Pico.cram, 0x40*2);\r |
1223 | } else if (dirty_count == 11) {\r |
1224 | blockcpy(HighPal+0x40, Pico.cram, 0x40*2);\r |
1225 | }\r |
1226 | }\r |
1227 | \r |
1228 | if (Pico.video.reg[12]&1) {\r |
1229 | len = 320;\r |
1230 | } else {\r |
602133e1 |
1231 | if (!(PicoOpt&POPT_DIS_32C_BORDER)) pd+=32;\r |
cc68a136 |
1232 | len = 256;\r |
1233 | }\r |
1234 | \r |
602133e1 |
1235 | if (!sh && (rs & PDRAW_SONIC_MODE)) {\r |
cc68a136 |
1236 | if (dirty_count >= 11) {\r |
1237 | blockcpy_or(pd, HighCol+8, len, 0x80);\r |
1238 | } else {\r |
1239 | blockcpy_or(pd, HighCol+8, len, 0x40);\r |
1240 | }\r |
1241 | } else {\r |
1242 | blockcpy(pd, HighCol+8, len);\r |
1243 | }\r |
1244 | }\r |
1245 | \r |
ea8c405f |
1246 | static void (*FinalizeLine)(int sh) = FinalizeLineBGR444;\r |
cc68a136 |
1247 | \r |
602133e1 |
1248 | // hblank was enabled early during prev line processng -\r |
1249 | // it should have been blanked\r |
1250 | static void handle_early_blank(int scanline, int sh)\r |
1251 | {\r |
1252 | scanline--;\r |
1253 | \r |
1254 | if (PicoScanBegin != NULL)\r |
1255 | PicoScanBegin(scanline);\r |
1256 | \r |
1257 | BackFill(Pico.video.reg[7], sh);\r |
1258 | \r |
1259 | if (FinalizeLine != NULL)\r |
1260 | FinalizeLine(sh);\r |
1261 | \r |
1262 | if (PicoScanEnd != NULL)\r |
1263 | PicoScanEnd(scanline);\r |
1264 | }\r |
1265 | \r |
cc68a136 |
1266 | // --------------------------------------------\r |
1267 | \r |
e5fa9817 |
1268 | static int DrawDisplay(int sh, int as)\r |
cc68a136 |
1269 | {\r |
1270 | struct PicoVideo *pvid=&Pico.video;\r |
1271 | int win=0,edge=0,hvwind=0;\r |
1272 | int maxw, maxcells;\r |
1273 | \r |
602133e1 |
1274 | rendstatus &= ~(PDRAW_SHHI_DONE|PDRAW_PLANE_HI_PRIO);\r |
740da8c6 |
1275 | \r |
cc68a136 |
1276 | if(pvid->reg[12]&1) {\r |
1277 | maxw = 328; maxcells = 40;\r |
1278 | } else {\r |
1279 | maxw = 264; maxcells = 32;\r |
1280 | }\r |
1281 | \r |
1282 | // Find out if the window is on this line:\r |
1283 | win=pvid->reg[0x12];\r |
1284 | edge=(win&0x1f)<<3;\r |
1285 | \r |
1286 | if (win&0x80) { if (Scanline>=edge) hvwind=1; }\r |
1287 | else { if (Scanline< edge) hvwind=1; }\r |
1288 | \r |
7a7c6476 |
1289 | if (!hvwind) { // we might have a vertical window here\r |
cc68a136 |
1290 | win=pvid->reg[0x11];\r |
1291 | edge=win&0x1f;\r |
7a7c6476 |
1292 | if (win&0x80) {\r |
1293 | if (!edge) hvwind=1;\r |
cc68a136 |
1294 | else if(edge < (maxcells>>1)) hvwind=2;\r |
1295 | } else {\r |
7a7c6476 |
1296 | if (!edge);\r |
cc68a136 |
1297 | else if(edge < (maxcells>>1)) hvwind=2;\r |
1298 | else hvwind=1;\r |
1299 | }\r |
1300 | }\r |
1301 | \r |
e5fa9817 |
1302 | DrawLayer(1|((sh|as)<<1), HighCacheB, 0, maxcells);\r |
7a7c6476 |
1303 | if (hvwind == 1)\r |
e5fa9817 |
1304 | DrawWindow(0, maxcells>>1, 0, sh|as);\r |
7a7c6476 |
1305 | else if (hvwind == 2) {\r |
cc68a136 |
1306 | // ahh, we have vertical window\r |
e5fa9817 |
1307 | DrawLayer(0|((sh|as)<<1), HighCacheA, (win&0x80) ? 0 : edge<<1, (win&0x80) ? edge<<1 : maxcells);\r |
1308 | DrawWindow( (win&0x80) ? edge : 0, (win&0x80) ? maxcells>>1 : edge, 0, sh|as);\r |
cc68a136 |
1309 | } else\r |
e5fa9817 |
1310 | DrawLayer(0|((sh|as)<<1), HighCacheA, 0, maxcells);\r |
1311 | DrawAllSpritesLoPri(HighCacheS, maxw, 0, sh);\r |
cc68a136 |
1312 | \r |
7a7c6476 |
1313 | if (HighCacheB[0]) DrawTilesFromCache(HighCacheB, sh, 328);\r |
1314 | if (hvwind == 1)\r |
cc68a136 |
1315 | DrawWindow(0, maxcells>>1, 1, sh);\r |
7a7c6476 |
1316 | else if (hvwind == 2) {\r |
83c093a4 |
1317 | if(HighCacheA[0]) DrawTilesFromCache(HighCacheA, sh, (win&0x80) ? edge<<4 : 328);\r |
cc68a136 |
1318 | DrawWindow((win&0x80) ? edge : 0, (win&0x80) ? maxcells>>1 : edge, 1, sh);\r |
1319 | } else\r |
7a7c6476 |
1320 | if (HighCacheA[0]) DrawTilesFromCache(HighCacheA, sh, 328);\r |
07abbab1 |
1321 | if (HighCacheS[0]) DrawAllSpritesHiPri(HighCacheS, maxw, 1, sh);\r |
cc68a136 |
1322 | \r |
740da8c6 |
1323 | #if 0\r |
1324 | {\r |
1325 | int *c, a, b;\r |
1326 | for (a = 0, c = HighCacheA; *c; c++, a++);\r |
1327 | for (b = 0, c = HighCacheB; *c; c++, b++);\r |
1328 | printf("%i:%03i: a=%i, b=%i\n", Pico.m.frame_count, Scanline, a, b);\r |
1329 | }\r |
1330 | #endif\r |
1331 | \r |
cc68a136 |
1332 | return 0;\r |
1333 | }\r |
1334 | \r |
1335 | \r |
eff55556 |
1336 | PICO_INTERNAL void PicoFrameStart(void)\r |
cc68a136 |
1337 | {\r |
1338 | // prepare to do this frame\r |
602133e1 |
1339 | rendstatus = (PicoOpt&0x80)>>5; // accurate sprites, clear everything else\r |
e5fa9817 |
1340 | if ((Pico.video.reg[12]&6) == 6) {\r |
1341 | rendstatus |= PDRAW_INTERLACE; // interlace mode\r |
1342 | DrawAllSpritesLoPri = DrawAllSpritesInterlace;\r |
1343 | DrawAllSpritesHiPri = DrawAllSpritesInterlace;\r |
1344 | }\r |
1345 | else\r |
1346 | {\r |
1347 | DrawAllSpritesLoPri = DrawAllSprites;\r |
1348 | DrawAllSpritesHiPri = rendstatus ? DrawSpritesFromCacheAS : DrawSpritesFromCache;\r |
1349 | }\r |
1350 | \r |
602133e1 |
1351 | if (Pico.m.dirtyPal) Pico.m.dirtyPal = 2; // reset dirty if needed\r |
cc68a136 |
1352 | \r |
1353 | PrepareSprites(1);\r |
602133e1 |
1354 | skip_next_line=0;\r |
cc68a136 |
1355 | }\r |
1356 | \r |
eff55556 |
1357 | PICO_INTERNAL int PicoLine(int scan)\r |
cc68a136 |
1358 | {\r |
e5fa9817 |
1359 | int sh, as = 0;\r |
602133e1 |
1360 | if (skip_next_line>0) { skip_next_line--; return 0; } // skip_next_line rendering lines\r |
cc68a136 |
1361 | \r |
1362 | Scanline=scan;\r |
1363 | sh=(Pico.video.reg[0xC]&8)>>3; // shadow/hilight?\r |
e5fa9817 |
1364 | if (rendstatus & PDRAW_ACC_SPRITES) as|=1; // accurate sprites\r |
cc68a136 |
1365 | \r |
602133e1 |
1366 | if (rendstatus & PDRAW_EARLY_BLANK) {\r |
1367 | if (scan > 0) handle_early_blank(scan, sh);\r |
1368 | rendstatus &= ~PDRAW_EARLY_BLANK;\r |
1369 | }\r |
1370 | \r |
1371 | if (PicoScanBegin != NULL)\r |
1372 | skip_next_line = PicoScanBegin(scan);\r |
1373 | \r |
cc68a136 |
1374 | // Draw screen:\r |
e5fa9817 |
1375 | BackFill(Pico.video.reg[7], sh|as);\r |
cc68a136 |
1376 | if (Pico.video.reg[1]&0x40)\r |
e5fa9817 |
1377 | DrawDisplay(sh, as);\r |
cc68a136 |
1378 | \r |
ea8c405f |
1379 | if (FinalizeLine != NULL)\r |
1380 | FinalizeLine(sh);\r |
cc68a136 |
1381 | \r |
602133e1 |
1382 | if (PicoScanEnd != NULL)\r |
1383 | PicoScanEnd(scan);\r |
cc68a136 |
1384 | \r |
1385 | return 0;\r |
1386 | }\r |
1387 | \r |
1388 | \r |
1389 | void PicoDrawSetColorFormat(int which)\r |
1390 | {\r |
ea8c405f |
1391 | switch (which)\r |
1392 | {\r |
1393 | case 2: FinalizeLine = FinalizeLine8bit; break;\r |
1394 | case 1: FinalizeLine = FinalizeLineRGB555; break;\r |
1395 | case 0: FinalizeLine = FinalizeLineBGR444; break;\r |
1396 | default:FinalizeLine = NULL; break;\r |
1397 | }\r |
499a0be3 |
1398 | #if OVERRIDE_HIGHCOL\r |
1399 | if (which) HighCol=DefHighCol;\r |
1400 | #endif\r |
cc68a136 |
1401 | }\r |
ea8c405f |
1402 | \r |