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1 | // This is part of Pico Library\r |
2 | \r |
3 | // (c) Copyright 2004 Dave, All rights reserved.\r |
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4 | // (c) Copyright 2006-2008 notaz, All rights reserved.\r |
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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 |
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13 | * - "sonic mode" for midline palette changes (8bit mode only)\r |
14 | * - accurate sprites (AS) [+ s/h]\r |
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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 |
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19 | *\r |
20 | * not handled properly:\r |
21 | * - hilight op on shadow tile\r |
22 | * - AS + s/h (s/h sprite flag interferes with and cleared by AS code)\r |
e5fa9817 |
23 | */\r |
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24 | \r |
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25 | #include "pico_int.h"\r |
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26 | \r |
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27 | int (*PicoScanBegin)(unsigned int num) = NULL;\r |
28 | int (*PicoScanEnd) (unsigned int num) = NULL;\r |
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29 | \r |
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30 | #if OVERRIDE_HIGHCOL\r |
31 | static unsigned char DefHighCol[8+320+8];\r |
32 | unsigned char *HighCol=DefHighCol;\r |
33 | #else\r |
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34 | unsigned char HighCol[8+320+8];\r |
ea8c405f |
35 | #endif\r |
36 | unsigned short DefOutBuff[320*2];\r |
37 | void *DrawLineDest=DefOutBuff; // pointer to dest buffer where to draw this line to\r |
38 | \r |
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39 | static int HighCacheA[41+1]; // caches for high layers\r |
40 | static int HighCacheB[41+1];\r |
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41 | int HighPreSpr[80*2+1]; // slightly preprocessed sprites\r |
381eea9b |
42 | \r |
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43 | #define SPRL_HAVE_HI 0x80 // have hi priority sprites\r |
44 | #define SPRL_HAVE_LO 0x40 // *lo*\r |
45 | #define SPRL_MAY_HAVE_OP 0x20 // may have operator sprites on the line\r |
46 | #define SPRL_LO_ABOVE_HI 0x10 // low priority sprites may be on top of hi\r |
47 | unsigned char HighLnSpr[240][3 + MAX_LINE_SPRITES]; // sprite_count, ^flags, tile_count, [spritep]...\r |
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48 | \r |
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49 | int rendstatus = 0;\r |
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50 | int DrawScanline = 0;\r |
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51 | int PicoDrawMask = -1;\r |
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52 | \r |
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53 | static int skip_next_line=0;\r |
54 | \r |
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55 | //unsigned short ppt[] = { 0x0f11, 0x0ff1, 0x01f1, 0x011f, 0x01ff, 0x0f1f, 0x0f0e, 0x0e7c };\r |
56 | \r |
57 | struct TileStrip\r |
58 | {\r |
59 | int nametab; // Position in VRAM of name table (for this tile line)\r |
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60 | int line; // Line number in pixels 0x000-0x3ff within the virtual tilemap\r |
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61 | int hscroll; // Horizontal scroll value in pixels for the line\r |
62 | int xmask; // X-Mask (0x1f - 0x7f) for horizontal wraparound in the tilemap\r |
63 | int *hc; // cache for high tile codes and their positions\r |
64 | int cells; // cells (tiles) to draw (32 col mode doesn't need to update whole 320)\r |
65 | };\r |
66 | \r |
67 | // stuff available in asm:\r |
68 | #ifdef _ASM_DRAW_C\r |
69 | void DrawWindow(int tstart, int tend, int prio, int sh);\r |
70 | void BackFill(int reg7, int sh);\r |
0fc0e241 |
71 | void DrawAllSprites(unsigned char *sprited, int prio, int sh);\r |
7a7c6476 |
72 | void DrawTilesFromCache(int *hc, int sh, int rlim);\r |
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73 | void DrawSpritesSHi(unsigned char *sprited);\r |
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74 | void DrawLayer(int plane_sh, int *hcache, int cellskip, int maxcells);\r |
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75 | void FinalizeLineBGR444(int sh);\r |
76 | void FinalizeLineRGB555(int sh);\r |
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77 | void *blockcpy(void *dst, const void *src, size_t n);\r |
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78 | void blockcpy_or(void *dst, void *src, size_t n, int pat);\r |
79 | #else\r |
80 | // utility\r |
81 | void blockcpy_or(void *dst, void *src, size_t n, int pat)\r |
82 | {\r |
83 | unsigned char *pd = dst, *ps = src;\r |
84 | for (; n; n--)\r |
85 | *pd++ = (unsigned char) (*ps++ | pat);\r |
86 | }\r |
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87 | #define blockcpy memcpy\r |
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88 | #endif\r |
89 | \r |
90 | \r |
07abbab1 |
91 | #define TileNormMaker(funcname,pix_func) \\r |
92 | static int funcname(int sx,int addr,int pal) \\r |
93 | { \\r |
94 | unsigned char *pd = HighCol+sx; \\r |
95 | unsigned int pack=0; unsigned int t=0; \\r |
96 | \\r |
97 | pack=*(unsigned int *)(Pico.vram+addr); /* Get 8 pixels */ \\r |
98 | if (pack) \\r |
99 | { \\r |
100 | t=(pack&0x0000f000)>>12; pix_func(0); \\r |
101 | t=(pack&0x00000f00)>> 8; pix_func(1); \\r |
102 | t=(pack&0x000000f0)>> 4; pix_func(2); \\r |
103 | t=(pack&0x0000000f) ; pix_func(3); \\r |
104 | t=(pack&0xf0000000)>>28; pix_func(4); \\r |
105 | t=(pack&0x0f000000)>>24; pix_func(5); \\r |
106 | t=(pack&0x00f00000)>>20; pix_func(6); \\r |
107 | t=(pack&0x000f0000)>>16; pix_func(7); \\r |
108 | return 0; \\r |
109 | } \\r |
110 | \\r |
111 | return 1; /* Tile blank */ \\r |
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112 | }\r |
113 | \r |
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114 | \r |
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115 | #define TileFlipMaker(funcname,pix_func) \\r |
116 | static int funcname(int sx,int addr,int pal) \\r |
117 | { \\r |
118 | unsigned char *pd = HighCol+sx; \\r |
119 | unsigned int pack=0; unsigned int t=0; \\r |
120 | \\r |
121 | pack=*(unsigned int *)(Pico.vram+addr); /* Get 8 pixels */ \\r |
122 | if (pack) \\r |
123 | { \\r |
124 | t=(pack&0x000f0000)>>16; pix_func(0); \\r |
125 | t=(pack&0x00f00000)>>20; pix_func(1); \\r |
126 | t=(pack&0x0f000000)>>24; pix_func(2); \\r |
127 | t=(pack&0xf0000000)>>28; pix_func(3); \\r |
128 | t=(pack&0x0000000f) ; pix_func(4); \\r |
129 | t=(pack&0x000000f0)>> 4; pix_func(5); \\r |
130 | t=(pack&0x00000f00)>> 8; pix_func(6); \\r |
131 | t=(pack&0x0000f000)>>12; pix_func(7); \\r |
132 | return 0; \\r |
133 | } \\r |
134 | \\r |
135 | return 1; /* Tile blank */ \\r |
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136 | }\r |
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137 | \r |
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138 | \r |
07abbab1 |
139 | #ifdef _ASM_DRAW_C_AMIPS\r |
140 | int TileNorm(int sx,int addr,int pal);\r |
141 | int TileFlip(int sx,int addr,int pal);\r |
142 | #else\r |
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143 | \r |
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144 | #define pix_just_write(x) \\r |
145 | if (t) pd[x]=pal|t\r |
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146 | \r |
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147 | TileNormMaker(TileNorm,pix_just_write)\r |
148 | TileFlipMaker(TileFlip,pix_just_write)\r |
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149 | \r |
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150 | #endif\r |
151 | \r |
e352c3af |
152 | #ifndef _ASM_DRAW_C\r |
153 | \r |
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154 | // draw a sprite pixel, process operator colors\r |
155 | #define pix_sh(x) \\r |
156 | if (!t); \\r |
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157 | else if (t>=0xe) pd[x]=(pd[x]&0x3f)|(t<<6); /* c0 shadow, 80 hilight */ \\r |
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158 | else pd[x]=pal|t\r |
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159 | \r |
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160 | TileNormMaker(TileNormSH, pix_sh)\r |
161 | TileFlipMaker(TileFlipSH, pix_sh)\r |
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162 | \r |
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163 | // draw a sprite pixel, mark operator colors\r |
164 | #define pix_sh_markop(x) \\r |
165 | if (!t); \\r |
166 | else if (t>=0xe) pd[x]|=0x80; \\r |
167 | else pd[x]=pal|t\r |
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168 | \r |
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169 | TileNormMaker(TileNormSH_markop, pix_sh_markop)\r |
170 | TileFlipMaker(TileFlipSH_markop, pix_sh_markop)\r |
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171 | \r |
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172 | // process operator pixels only, apply only on low pri tiles and other op pixels\r |
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173 | #define pix_sh_onlyop(x) \\r |
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174 | if (t>=0xe && (pd[x]&0xc0)) \\r |
175 | pd[x]=(pd[x]&0x3f)|(t<<6); /* c0 shadow, 80 hilight */ \\r |
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176 | \r |
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177 | TileNormMaker(TileNormSH_onlyop_lp, pix_sh_onlyop)\r |
178 | TileFlipMaker(TileFlipSH_onlyop_lp, pix_sh_onlyop)\r |
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179 | \r |
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180 | #endif\r |
181 | \r |
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182 | // draw a sprite pixel (AS)\r |
183 | #define pix_as(x) \\r |
184 | if (t && !(pd[x]&0x80)) pd[x]=pal|t\r |
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185 | \r |
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186 | TileNormMaker(TileNormAS, pix_as)\r |
187 | TileFlipMaker(TileFlipAS, pix_as)\r |
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188 | \r |
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189 | // draw a sprite pixel, skip operator colors (AS)\r |
190 | #define pix_sh_as_noop(x) \\r |
191 | if (t && t < 0xe && !(pd[x]&0x80)) pd[x]=pal|t\r |
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192 | \r |
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193 | TileNormMaker(TileNormAS_noop, pix_sh_as_noop)\r |
194 | TileFlipMaker(TileFlipAS_noop, pix_sh_as_noop)\r |
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195 | \r |
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196 | // mark pixel as sprite pixel (AS)\r |
197 | #define pix_sh_as_onlymark(x) \\r |
198 | if (t) pd[x]|=0x80\r |
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199 | \r |
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200 | TileNormMaker(TileNormAS_onlymark, pix_sh_as_onlymark)\r |
201 | TileFlipMaker(TileFlipAS_onlymark, pix_sh_as_onlymark)\r |
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202 | \r |
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203 | \r |
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204 | // --------------------------------------------\r |
205 | \r |
206 | #ifndef _ASM_DRAW_C\r |
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207 | static void DrawStrip(struct TileStrip *ts, int plane_sh, int cellskip)\r |
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208 | {\r |
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209 | int tilex,dx,ty,code=0,addr=0,cells;\r |
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210 | int oldcode=-1,blank=-1; // The tile we know is blank\r |
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211 | int pal=0,sh;\r |
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212 | \r |
213 | // Draw tiles across screen:\r |
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214 | sh=(plane_sh<<5)&0x40;\r |
215 | tilex=((-ts->hscroll)>>3)+cellskip;\r |
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216 | ty=(ts->line&7)<<1; // Y-Offset into tile\r |
217 | dx=((ts->hscroll-1)&7)+1;\r |
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218 | cells = ts->cells - cellskip;\r |
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219 | if(dx != 8) cells++; // have hscroll, need to draw 1 cell more\r |
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220 | dx+=cellskip<<3;\r |
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221 | \r |
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222 | for (; cells > 0; dx+=8,tilex++,cells--)\r |
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223 | {\r |
224 | int zero=0;\r |
225 | \r |
226 | code=Pico.vram[ts->nametab+(tilex&ts->xmask)];\r |
227 | if (code==blank) continue;\r |
228 | if (code>>15) { // high priority tile\r |
229 | int cval = code | (dx<<16) | (ty<<25);\r |
230 | if(code&0x1000) cval^=7<<26;\r |
231 | *ts->hc++ = cval; // cache it\r |
232 | continue;\r |
233 | }\r |
234 | \r |
235 | if (code!=oldcode) {\r |
236 | oldcode = code;\r |
237 | // Get tile address/2:\r |
238 | addr=(code&0x7ff)<<4;\r |
239 | addr+=ty;\r |
240 | if (code&0x1000) addr^=0xe; // Y-flip\r |
241 | \r |
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242 | pal=((code>>9)&0x30)|sh;\r |
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243 | }\r |
244 | \r |
245 | if (code&0x0800) zero=TileFlip(dx,addr,pal);\r |
246 | else zero=TileNorm(dx,addr,pal);\r |
247 | \r |
248 | if (zero) blank=code; // We know this tile is blank now\r |
249 | }\r |
250 | \r |
251 | // terminate the cache list\r |
252 | *ts->hc = 0;\r |
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253 | // if oldcode wasn't changed, it means all layer is hi priority\r |
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254 | if (oldcode == -1) rendstatus |= PDRAW_PLANE_HI_PRIO;\r |
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255 | }\r |
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256 | \r |
257 | // this is messy\r |
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258 | void DrawStripVSRam(struct TileStrip *ts, int plane_sh, int cellskip)\r |
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259 | {\r |
83c093a4 |
260 | int tilex,dx,code=0,addr=0,cell=0;\r |
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261 | int oldcode=-1,blank=-1; // The tile we know is blank\r |
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262 | int pal=0,scan=DrawScanline;\r |
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263 | \r |
264 | // Draw tiles across screen:\r |
265 | tilex=(-ts->hscroll)>>3;\r |
266 | dx=((ts->hscroll-1)&7)+1;\r |
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267 | if(dx != 8) cell--; // have hscroll, start with negative cell\r |
268 | cell+=cellskip;\r |
269 | tilex+=cellskip;\r |
270 | dx+=cellskip<<3;\r |
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271 | \r |
272 | for (; cell < ts->cells; dx+=8,tilex++,cell++)\r |
273 | {\r |
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274 | int zero=0,nametabadd,ty;\r |
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275 | \r |
83c093a4 |
276 | //if((cell&1)==0)\r |
277 | {\r |
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278 | int line,vscroll;\r |
83c093a4 |
279 | vscroll=Pico.vsram[(plane_sh&1)+(cell&~1)];\r |
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280 | \r |
281 | // Find the line in the name table\r |
282 | line=(vscroll+scan)&ts->line&0xffff; // ts->line is really ymask ..\r |
283 | nametabadd=(line>>3)<<(ts->line>>24); // .. and shift[width]\r |
284 | ty=(line&7)<<1; // Y-Offset into tile\r |
285 | }\r |
286 | \r |
287 | code=Pico.vram[ts->nametab+nametabadd+(tilex&ts->xmask)];\r |
288 | if (code==blank) continue;\r |
289 | if (code>>15) { // high priority tile\r |
290 | int cval = code | (dx<<16) | (ty<<25);\r |
291 | if(code&0x1000) cval^=7<<26;\r |
292 | *ts->hc++ = cval; // cache it\r |
293 | continue;\r |
294 | }\r |
295 | \r |
296 | if (code!=oldcode) {\r |
297 | oldcode = code;\r |
298 | // Get tile address/2:\r |
299 | addr=(code&0x7ff)<<4;\r |
300 | if (code&0x1000) addr+=14-ty; else addr+=ty; // Y-flip\r |
301 | \r |
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302 | pal=((code>>9)&0x30)|((plane_sh<<5)&0x40);\r |
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303 | }\r |
304 | \r |
305 | if (code&0x0800) zero=TileFlip(dx,addr,pal);\r |
306 | else zero=TileNorm(dx,addr,pal);\r |
307 | \r |
308 | if (zero) blank=code; // We know this tile is blank now\r |
309 | }\r |
310 | \r |
311 | // terminate the cache list\r |
312 | *ts->hc = 0;\r |
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313 | if (oldcode == -1) rendstatus |= PDRAW_PLANE_HI_PRIO;\r |
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314 | }\r |
6d7acf9e |
315 | #endif\r |
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316 | \r |
317 | #ifndef _ASM_DRAW_C\r |
318 | static\r |
319 | #endif\r |
320 | void DrawStripInterlace(struct TileStrip *ts)\r |
321 | {\r |
322 | int tilex=0,dx=0,ty=0,code=0,addr=0,cells;\r |
323 | int oldcode=-1,blank=-1; // The tile we know is blank\r |
324 | int pal=0;\r |
325 | \r |
326 | // Draw tiles across screen:\r |
327 | tilex=(-ts->hscroll)>>3;\r |
328 | ty=(ts->line&15)<<1; // Y-Offset into tile\r |
329 | dx=((ts->hscroll-1)&7)+1;\r |
330 | cells = ts->cells;\r |
331 | if(dx != 8) cells++; // have hscroll, need to draw 1 cell more\r |
332 | \r |
333 | for (; cells; dx+=8,tilex++,cells--)\r |
334 | {\r |
335 | int zero=0;\r |
336 | \r |
337 | code=Pico.vram[ts->nametab+(tilex&ts->xmask)];\r |
338 | if (code==blank) continue;\r |
339 | if (code>>15) { // high priority tile\r |
340 | int cval = (code&0xfc00) | (dx<<16) | (ty<<25);\r |
341 | cval|=(code&0x3ff)<<1;\r |
342 | if(code&0x1000) cval^=0xf<<26;\r |
343 | *ts->hc++ = cval; // cache it\r |
344 | continue;\r |
345 | }\r |
346 | \r |
347 | if (code!=oldcode) {\r |
348 | oldcode = code;\r |
349 | // Get tile address/2:\r |
350 | addr=(code&0x7ff)<<5;\r |
351 | if (code&0x1000) addr+=30-ty; else addr+=ty; // Y-flip\r |
352 | \r |
353 | // pal=Pico.cram+((code>>9)&0x30);\r |
354 | pal=((code>>9)&0x30);\r |
355 | }\r |
356 | \r |
357 | if (code&0x0800) zero=TileFlip(dx,addr,pal);\r |
358 | else zero=TileNorm(dx,addr,pal);\r |
359 | \r |
360 | if (zero) blank=code; // We know this tile is blank now\r |
361 | }\r |
362 | \r |
363 | // terminate the cache list\r |
364 | *ts->hc = 0;\r |
365 | }\r |
366 | \r |
367 | // --------------------------------------------\r |
368 | \r |
369 | #ifndef _ASM_DRAW_C\r |
83c093a4 |
370 | static void DrawLayer(int plane_sh, int *hcache, int cellskip, int maxcells)\r |
cc68a136 |
371 | {\r |
372 | struct PicoVideo *pvid=&Pico.video;\r |
373 | const char shift[4]={5,6,5,7}; // 32,64 or 128 sized tilemaps (2 is invalid)\r |
374 | struct TileStrip ts;\r |
375 | int width, height, ymask;\r |
376 | int vscroll, htab;\r |
377 | \r |
378 | ts.hc=hcache;\r |
379 | ts.cells=maxcells;\r |
380 | \r |
381 | // Work out the TileStrip to draw\r |
382 | \r |
383 | // Work out the name table size: 32 64 or 128 tiles (0-3)\r |
384 | width=pvid->reg[16];\r |
385 | height=(width>>4)&3; width&=3;\r |
386 | \r |
387 | ts.xmask=(1<<shift[width])-1; // X Mask in tiles (0x1f-0x7f)\r |
388 | ymask=(height<<8)|0xff; // Y Mask in pixels\r |
389 | if(width == 1) ymask&=0x1ff;\r |
390 | else if(width>1) ymask =0x0ff;\r |
391 | \r |
392 | // Find name table:\r |
83c093a4 |
393 | if (plane_sh&1) ts.nametab=(pvid->reg[4]&0x07)<<12; // B\r |
394 | else ts.nametab=(pvid->reg[2]&0x38)<< 9; // A\r |
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395 | \r |
396 | htab=pvid->reg[13]<<9; // Horizontal scroll table address\r |
b6d7ac70 |
397 | if ( pvid->reg[11]&2) htab+=DrawScanline<<1; // Offset by line\r |
cc68a136 |
398 | if ((pvid->reg[11]&1)==0) htab&=~0xf; // Offset by tile\r |
83c093a4 |
399 | htab+=plane_sh&1; // A or B\r |
cc68a136 |
400 | \r |
401 | // Get horizontal scroll value, will be masked later\r |
402 | ts.hscroll=Pico.vram[htab&0x7fff];\r |
403 | \r |
404 | if((pvid->reg[12]&6) == 6) {\r |
405 | // interlace mode 2\r |
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406 | vscroll=Pico.vsram[plane_sh&1]; // Get vertical scroll value\r |
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407 | \r |
408 | // Find the line in the name table\r |
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409 | ts.line=(vscroll+(DrawScanline<<1))&((ymask<<1)|1);\r |
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410 | ts.nametab+=(ts.line>>4)<<shift[width];\r |
411 | \r |
412 | DrawStripInterlace(&ts);\r |
413 | } else if( pvid->reg[11]&4) {\r |
414 | // shit, we have 2-cell column based vscroll\r |
415 | // luckily this doesn't happen too often\r |
416 | ts.line=ymask|(shift[width]<<24); // save some stuff instead of line\r |
83c093a4 |
417 | DrawStripVSRam(&ts, plane_sh, cellskip);\r |
cc68a136 |
418 | } else {\r |
83c093a4 |
419 | vscroll=Pico.vsram[plane_sh&1]; // Get vertical scroll value\r |
cc68a136 |
420 | \r |
421 | // Find the line in the name table\r |
b6d7ac70 |
422 | ts.line=(vscroll+DrawScanline)&ymask;\r |
cc68a136 |
423 | ts.nametab+=(ts.line>>3)<<shift[width];\r |
424 | \r |
83c093a4 |
425 | DrawStrip(&ts, plane_sh, cellskip);\r |
cc68a136 |
426 | }\r |
427 | }\r |
428 | \r |
429 | \r |
430 | // --------------------------------------------\r |
431 | \r |
432 | // tstart & tend are tile pair numbers\r |
433 | static void DrawWindow(int tstart, int tend, int prio, int sh) // int *hcache\r |
434 | {\r |
435 | struct PicoVideo *pvid=&Pico.video;\r |
07abbab1 |
436 | int tilex,ty,nametab,code=0;\r |
cc68a136 |
437 | int blank=-1; // The tile we know is blank\r |
438 | \r |
439 | // Find name table line:\r |
440 | if (pvid->reg[12]&1)\r |
441 | {\r |
442 | nametab=(pvid->reg[3]&0x3c)<<9; // 40-cell mode\r |
b6d7ac70 |
443 | nametab+=(DrawScanline>>3)<<6;\r |
cc68a136 |
444 | }\r |
445 | else\r |
446 | {\r |
447 | nametab=(pvid->reg[3]&0x3e)<<9; // 32-cell mode\r |
b6d7ac70 |
448 | nametab+=(DrawScanline>>3)<<5;\r |
cc68a136 |
449 | }\r |
450 | \r |
451 | tilex=tstart<<1;\r |
cc68a136 |
452 | \r |
602133e1 |
453 | if (!(rendstatus & PDRAW_WND_DIFF_PRIO)) {\r |
cc68a136 |
454 | // check the first tile code\r |
455 | code=Pico.vram[nametab+tilex];\r |
456 | // if the whole window uses same priority (what is often the case), we may be able to skip this field\r |
602133e1 |
457 | if ((code>>15) != prio) return;\r |
cc68a136 |
458 | }\r |
459 | \r |
07abbab1 |
460 | tend<<=1;\r |
b6d7ac70 |
461 | ty=(DrawScanline&7)<<1; // Y-Offset into tile\r |
07abbab1 |
462 | \r |
cc68a136 |
463 | // Draw tiles across screen:\r |
81fda4e8 |
464 | if (!sh)\r |
cc68a136 |
465 | {\r |
81fda4e8 |
466 | for (; tilex < tend; tilex++)\r |
467 | {\r |
468 | int addr=0,zero=0;\r |
469 | int pal;\r |
470 | \r |
471 | code=Pico.vram[nametab+tilex];\r |
602133e1 |
472 | if (code==blank) continue;\r |
473 | if ((code>>15) != prio) {\r |
474 | rendstatus |= PDRAW_WND_DIFF_PRIO;\r |
81fda4e8 |
475 | continue;\r |
476 | }\r |
cc68a136 |
477 | \r |
81fda4e8 |
478 | pal=((code>>9)&0x30);\r |
479 | \r |
480 | // Get tile address/2:\r |
481 | addr=(code&0x7ff)<<4;\r |
482 | if (code&0x1000) addr+=14-ty; else addr+=ty; // Y-flip\r |
483 | \r |
484 | if (code&0x0800) zero=TileFlip(8+(tilex<<3),addr,pal);\r |
485 | else zero=TileNorm(8+(tilex<<3),addr,pal);\r |
486 | \r |
487 | if (zero) blank=code; // We know this tile is blank now\r |
cc68a136 |
488 | }\r |
81fda4e8 |
489 | }\r |
490 | else\r |
491 | {\r |
492 | for (; tilex < tend; tilex++)\r |
493 | {\r |
494 | int addr=0,zero=0;\r |
07abbab1 |
495 | int pal;\r |
81fda4e8 |
496 | \r |
497 | code=Pico.vram[nametab+tilex];\r |
498 | if(code==blank) continue;\r |
499 | if((code>>15) != prio) {\r |
602133e1 |
500 | rendstatus |= PDRAW_WND_DIFF_PRIO;\r |
81fda4e8 |
501 | continue;\r |
502 | }\r |
cc68a136 |
503 | \r |
81fda4e8 |
504 | pal=((code>>9)&0x30);\r |
cc68a136 |
505 | \r |
07abbab1 |
506 | if (prio) {\r |
507 | int *zb = (int *)(HighCol+8+(tilex<<3));\r |
508 | *zb++ &= 0x3f3f3f3f;\r |
509 | *zb &= 0x3f3f3f3f;\r |
cc68a136 |
510 | } else {\r |
511 | pal |= 0x40;\r |
512 | }\r |
cc68a136 |
513 | \r |
81fda4e8 |
514 | // Get tile address/2:\r |
515 | addr=(code&0x7ff)<<4;\r |
516 | if (code&0x1000) addr+=14-ty; else addr+=ty; // Y-flip\r |
cc68a136 |
517 | \r |
81fda4e8 |
518 | if (code&0x0800) zero=TileFlip(8+(tilex<<3),addr,pal);\r |
519 | else zero=TileNorm(8+(tilex<<3),addr,pal);\r |
cc68a136 |
520 | \r |
81fda4e8 |
521 | if (zero) blank=code; // We know this tile is blank now\r |
522 | }\r |
cc68a136 |
523 | }\r |
cc68a136 |
524 | }\r |
525 | \r |
526 | // --------------------------------------------\r |
527 | \r |
81fda4e8 |
528 | static void DrawTilesFromCacheShPrep(void)\r |
529 | {\r |
602133e1 |
530 | // as some layer has covered whole line with hi priority tiles,\r |
40644bfe |
531 | // we can process whole line and then act as if sh/hi mode was off,\r |
532 | // but leave lo pri op sprite markers alone\r |
602133e1 |
533 | int c = 320/4, *zb = (int *)(HighCol+8);\r |
534 | rendstatus |= PDRAW_SHHI_DONE;\r |
535 | while (c--)\r |
81fda4e8 |
536 | {\r |
40644bfe |
537 | *zb++ &= 0xbfbfbfbf;\r |
81fda4e8 |
538 | }\r |
539 | }\r |
540 | \r |
7a7c6476 |
541 | static void DrawTilesFromCache(int *hc, int sh, int rlim)\r |
cc68a136 |
542 | {\r |
740da8c6 |
543 | int code, addr, dx;\r |
cc68a136 |
544 | int pal;\r |
cc68a136 |
545 | \r |
546 | // *ts->hc++ = code | (dx<<16) | (ty<<25); // cache it\r |
547 | \r |
602133e1 |
548 | if (sh && (rendstatus & (PDRAW_SHHI_DONE|PDRAW_PLANE_HI_PRIO)))\r |
740da8c6 |
549 | {\r |
602133e1 |
550 | if (!(rendstatus & PDRAW_SHHI_DONE))\r |
551 | DrawTilesFromCacheShPrep();\r |
740da8c6 |
552 | sh = 0;\r |
553 | }\r |
cc68a136 |
554 | \r |
81fda4e8 |
555 | if (!sh)\r |
740da8c6 |
556 | {\r |
81fda4e8 |
557 | short blank=-1; // The tile we know is blank\r |
7a7c6476 |
558 | while ((code=*hc++)) {\r |
81fda4e8 |
559 | int zero;\r |
560 | if((short)code == blank) continue;\r |
740da8c6 |
561 | // Get tile address/2:\r |
562 | addr=(code&0x7ff)<<4;\r |
563 | addr+=(unsigned int)code>>25; // y offset into tile\r |
564 | dx=(code>>16)&0x1ff;\r |
740da8c6 |
565 | \r |
566 | pal=((code>>9)&0x30);\r |
7a7c6476 |
567 | if (rlim-dx < 0) goto last_cut_tile;\r |
740da8c6 |
568 | \r |
81fda4e8 |
569 | if (code&0x0800) zero=TileFlip(dx,addr,pal);\r |
570 | else zero=TileNorm(dx,addr,pal);\r |
571 | \r |
572 | if (zero) blank=(short)code;\r |
cc68a136 |
573 | }\r |
740da8c6 |
574 | }\r |
575 | else\r |
576 | {\r |
7a7c6476 |
577 | while ((code=*hc++)) {\r |
81fda4e8 |
578 | unsigned char *zb;\r |
740da8c6 |
579 | // Get tile address/2:\r |
580 | addr=(code&0x7ff)<<4;\r |
581 | addr+=(unsigned int)code>>25; // y offset into tile\r |
582 | dx=(code>>16)&0x1ff;\r |
81fda4e8 |
583 | zb = HighCol+dx;\r |
40644bfe |
584 | *zb++ &= 0xbf; *zb++ &= 0xbf; *zb++ &= 0xbf; *zb++ &= 0xbf;\r |
585 | *zb++ &= 0xbf; *zb++ &= 0xbf; *zb++ &= 0xbf; *zb++ &= 0xbf;\r |
cc68a136 |
586 | \r |
740da8c6 |
587 | pal=((code>>9)&0x30);\r |
7a7c6476 |
588 | if (rlim-dx < 0) goto last_cut_tile;\r |
cc68a136 |
589 | \r |
81fda4e8 |
590 | if (code&0x0800) TileFlip(dx,addr,pal);\r |
591 | else TileNorm(dx,addr,pal);\r |
7a7c6476 |
592 | }\r |
593 | }\r |
594 | return;\r |
595 | \r |
596 | last_cut_tile:\r |
597 | {\r |
598 | unsigned int t, pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
599 | unsigned char *pd = HighCol+dx;\r |
600 | if (!pack) return;\r |
601 | if (code&0x0800)\r |
602 | {\r |
603 | switch (rlim-dx+8)\r |
604 | {\r |
605 | case 7: t=pack&0x00000f00; if (t) pd[6]=(unsigned char)(pal|(t>> 8)); // "break" is left out intentionally\r |
606 | case 6: t=pack&0x000000f0; if (t) pd[5]=(unsigned char)(pal|(t>> 4));\r |
607 | case 5: t=pack&0x0000000f; if (t) pd[4]=(unsigned char)(pal|(t ));\r |
608 | case 4: t=pack&0xf0000000; if (t) pd[3]=(unsigned char)(pal|(t>>28));\r |
609 | case 3: t=pack&0x0f000000; if (t) pd[2]=(unsigned char)(pal|(t>>24));\r |
610 | case 2: t=pack&0x00f00000; if (t) pd[1]=(unsigned char)(pal|(t>>20));\r |
611 | case 1: t=pack&0x000f0000; if (t) pd[0]=(unsigned char)(pal|(t>>16));\r |
612 | default: break;\r |
613 | }\r |
614 | }\r |
615 | else\r |
616 | {\r |
617 | switch (rlim-dx+8)\r |
618 | {\r |
619 | case 7: t=pack&0x00f00000; if (t) pd[6]=(unsigned char)(pal|(t>>20));\r |
947fb5f9 |
620 | case 6: t=pack&0x0f000000; if (t) pd[5]=(unsigned char)(pal|(t>>24));\r |
621 | case 5: t=pack&0xf0000000; if (t) pd[4]=(unsigned char)(pal|(t>>28));\r |
622 | case 4: t=pack&0x0000000f; if (t) pd[3]=(unsigned char)(pal|(t ));\r |
623 | case 3: t=pack&0x000000f0; if (t) pd[2]=(unsigned char)(pal|(t>> 4));\r |
624 | case 2: t=pack&0x00000f00; if (t) pd[1]=(unsigned char)(pal|(t>> 8));\r |
625 | case 1: t=pack&0x0000f000; if (t) pd[0]=(unsigned char)(pal|(t>>12));\r |
626 | default: break;\r |
7a7c6476 |
627 | }\r |
740da8c6 |
628 | }\r |
cc68a136 |
629 | }\r |
630 | }\r |
631 | \r |
632 | // --------------------------------------------\r |
633 | \r |
634 | // Index + 0 : hhhhvvvv ab--hhvv yyyyyyyy yyyyyyyy // a: offscreen h, b: offs. v, h: horiz. size\r |
635 | // Index + 4 : xxxxxxxx xxxxxxxx pccvhnnn nnnnnnnn // x: x coord + 8\r |
636 | \r |
97a7f774 |
637 | static void DrawSprite(int *sprite, int sh)\r |
cc68a136 |
638 | {\r |
639 | int width=0,height=0;\r |
640 | int row=0,code=0;\r |
641 | int pal;\r |
642 | int tile=0,delta=0;\r |
643 | int sx, sy;\r |
644 | int (*fTileFunc)(int sx,int addr,int pal);\r |
645 | \r |
646 | // parse the sprite data\r |
647 | sy=sprite[0];\r |
648 | code=sprite[1];\r |
649 | sx=code>>16; // X\r |
650 | width=sy>>28;\r |
651 | height=(sy>>24)&7; // Width and height in tiles\r |
652 | sy=(sy<<16)>>16; // Y\r |
653 | \r |
b6d7ac70 |
654 | row=DrawScanline-sy; // Row of the sprite we are on\r |
cc68a136 |
655 | \r |
656 | if (code&0x1000) row=(height<<3)-1-row; // Flip Y\r |
657 | \r |
07abbab1 |
658 | tile=code + (row>>3); // Tile number increases going down\r |
cc68a136 |
659 | delta=height; // Delta to increase tile by going right\r |
660 | if (code&0x0800) { tile+=delta*(width-1); delta=-delta; } // Flip X\r |
661 | \r |
07abbab1 |
662 | tile &= 0x7ff; tile<<=4; tile+=(row&7)<<1; // Tile address\r |
ee4f03ae |
663 | delta<<=4; // Delta of address\r |
07abbab1 |
664 | \r |
665 | pal=(code>>9)&0x30;\r |
97a7f774 |
666 | pal|=sh<<6;\r |
e5fa9817 |
667 | \r |
668 | if (sh && (code&0x6000) == 0x6000) {\r |
40644bfe |
669 | if(code&0x0800) fTileFunc=TileFlipSH_markop;\r |
670 | else fTileFunc=TileNormSH_markop;\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 |
b6d7ac70 |
702 | row=(DrawScanline<<1)-sy; // Row of the sprite we are on\r |
cc68a136 |
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 |
ee4f03ae |
731 | static void DrawAllSpritesInterlace(int pri, int sh)\r |
cc68a136 |
732 | {\r |
733 | struct PicoVideo *pvid=&Pico.video;\r |
b6d7ac70 |
734 | int i,u,table,link=0,sline=DrawScanline<<1;\r |
cc68a136 |
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 |
947fb5f9 |
761 | if(sx <= -8*3 || sx >= 328) goto nextsprite;\r |
cc68a136 |
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 |
40644bfe |
779 | /*\r |
780 | * s/h drawing: lo_layers|40, lo_sprites|40 && mark_op,\r |
781 | * hi_layers&=~40, hi_sprites\r |
782 | *\r |
783 | * Index + 0 : hhhhvvvv ----hhvv yyyyyyyy yyyyyyyy // v, h: vert./horiz. size\r |
784 | * Index + 4 : xxxxxxxx xxxxxxxx pccvhnnn nnnnnnnn // x: x coord + 8\r |
785 | */\r |
fbc65db7 |
786 | static void DrawSpritesSHi(unsigned char *sprited)\r |
cc68a136 |
787 | {\r |
cc68a136 |
788 | int (*fTileFunc)(int sx,int addr,int pal);\r |
ee4f03ae |
789 | unsigned char *p;\r |
790 | int cnt;\r |
791 | \r |
fbc65db7 |
792 | cnt = sprited[0] & 0x7f;\r |
ee4f03ae |
793 | if (cnt == 0) return;\r |
cc68a136 |
794 | \r |
fbc65db7 |
795 | p = &sprited[3];\r |
cc68a136 |
796 | \r |
ee4f03ae |
797 | // Go through sprites backwards:\r |
798 | for (cnt--; cnt >= 0; cnt--)\r |
07abbab1 |
799 | {\r |
ee4f03ae |
800 | int *sprite, code, pal, tile, sx, sy;\r |
801 | int offs, delta, width, height, row;\r |
802 | \r |
803 | offs = (p[cnt] & 0x7f) * 2;\r |
804 | sprite = HighPreSpr + offs;\r |
805 | code = sprite[1];\r |
806 | pal = (code>>9)&0x30;\r |
cc68a136 |
807 | \r |
fbc65db7 |
808 | if (pal == 0x30)\r |
07abbab1 |
809 | {\r |
ee4f03ae |
810 | if (code & 0x8000) // hi priority\r |
07abbab1 |
811 | {\r |
ee4f03ae |
812 | if (code&0x800) fTileFunc=TileFlipSH;\r |
813 | else fTileFunc=TileNormSH;\r |
07abbab1 |
814 | } else {\r |
ee4f03ae |
815 | if (code&0x800) fTileFunc=TileFlipSH_onlyop_lp;\r |
816 | else fTileFunc=TileNormSH_onlyop_lp;\r |
07abbab1 |
817 | }\r |
cc68a136 |
818 | } else {\r |
ee4f03ae |
819 | if (!(code & 0x8000)) continue; // non-operator low sprite, already drawn\r |
820 | if (code&0x800) fTileFunc=TileFlip;\r |
821 | else fTileFunc=TileNorm;\r |
cc68a136 |
822 | }\r |
823 | \r |
ee4f03ae |
824 | // parse remaining sprite data\r |
825 | sy=sprite[0];\r |
826 | sx=code>>16; // X\r |
827 | width=sy>>28;\r |
828 | height=(sy>>24)&7; // Width and height in tiles\r |
829 | sy=(sy<<16)>>16; // Y\r |
830 | \r |
831 | row=DrawScanline-sy; // Row of the sprite we are on\r |
832 | \r |
833 | if (code&0x1000) row=(height<<3)-1-row; // Flip Y\r |
834 | \r |
835 | tile=code + (row>>3); // Tile number increases going down\r |
836 | delta=height; // Delta to increase tile by going right\r |
837 | if (code&0x0800) { tile+=delta*(width-1); delta=-delta; } // Flip X\r |
838 | \r |
839 | tile &= 0x7ff; tile<<=4; tile+=(row&7)<<1; // Tile address\r |
840 | delta<<=4; // Delta of address\r |
841 | \r |
cc68a136 |
842 | for (; width; width--,sx+=8,tile+=delta)\r |
843 | {\r |
844 | if(sx<=0) continue;\r |
845 | if(sx>=328) break; // Offscreen\r |
846 | \r |
847 | tile&=0x7fff; // Clip tile address\r |
848 | fTileFunc(sx,tile,pal);\r |
849 | }\r |
850 | }\r |
851 | }\r |
f8af9634 |
852 | #endif // !_ASM_DRAW_C\r |
cc68a136 |
853 | \r |
fbc65db7 |
854 | static void DrawSpritesHiAS(unsigned char *sprited, int sh)\r |
e5fa9817 |
855 | {\r |
e5fa9817 |
856 | int (*fTileFunc)(int sx,int addr,int pal);\r |
ee4f03ae |
857 | unsigned char *p;\r |
858 | int entry, cnt, sh_cnt = 0;\r |
859 | \r |
fbc65db7 |
860 | cnt = sprited[0] & 0x7f;\r |
ee4f03ae |
861 | if (cnt == 0) return;\r |
e5fa9817 |
862 | \r |
f8af9634 |
863 | rendstatus |= PDRAW_SPR_LO_ON_HI;\r |
864 | \r |
fbc65db7 |
865 | p = &sprited[3];\r |
e5fa9817 |
866 | \r |
ee4f03ae |
867 | // Go through sprites:\r |
868 | for (entry = 0; entry < cnt; entry++)\r |
07abbab1 |
869 | {\r |
ee4f03ae |
870 | int *sprite, code, pal, tile, sx, sy;\r |
871 | int offs, delta, width, height, row;\r |
872 | \r |
873 | offs = (p[entry] & 0x7f) * 2;\r |
874 | sprite = HighPreSpr + offs;\r |
875 | code = sprite[1];\r |
876 | pal = (code>>9)&0x30;\r |
877 | \r |
878 | if (code & 0x8000) // hi priority\r |
07abbab1 |
879 | {\r |
880 | if (sh && pal == 0x30)\r |
881 | {\r |
ee4f03ae |
882 | if (code&0x800) fTileFunc=TileFlipAS_noop;\r |
883 | else fTileFunc=TileNormAS_noop;\r |
07abbab1 |
884 | } else {\r |
ee4f03ae |
885 | if (code&0x800) fTileFunc=TileFlipAS;\r |
886 | else fTileFunc=TileNormAS;\r |
07abbab1 |
887 | }\r |
e5fa9817 |
888 | } else {\r |
ee4f03ae |
889 | if (code&0x800) fTileFunc=TileFlipAS_onlymark;\r |
890 | else fTileFunc=TileNormAS_onlymark;\r |
e5fa9817 |
891 | }\r |
411cba90 |
892 | if (sh && pal == 0x30)\r |
ee4f03ae |
893 | p[sh_cnt++] = offs / 2; // re-save for sh/hi pass\r |
894 | \r |
895 | // parse remaining sprite data\r |
896 | sy=sprite[0];\r |
897 | sx=code>>16; // X\r |
898 | width=sy>>28;\r |
899 | height=(sy>>24)&7; // Width and height in tiles\r |
900 | sy=(sy<<16)>>16; // Y\r |
901 | \r |
902 | row=DrawScanline-sy; // Row of the sprite we are on\r |
903 | \r |
904 | if (code&0x1000) row=(height<<3)-1-row; // Flip Y\r |
905 | \r |
906 | tile=code + (row>>3); // Tile number increases going down\r |
907 | delta=height; // Delta to increase tile by going right\r |
908 | if (code&0x0800) { tile+=delta*(width-1); delta=-delta; } // Flip X\r |
909 | \r |
910 | tile &= 0x7ff; tile<<=4; tile+=(row&7)<<1; // Tile address\r |
911 | delta<<=4; // Delta of address\r |
e5fa9817 |
912 | \r |
07abbab1 |
913 | pal |= 0x80;\r |
914 | for (; width; width--,sx+=8,tile+=delta)\r |
915 | {\r |
916 | if(sx<=0) continue;\r |
917 | if(sx>=328) break; // Offscreen\r |
918 | \r |
919 | tile&=0x7fff; // Clip tile address\r |
920 | fTileFunc(sx,tile,pal);\r |
921 | }\r |
922 | }\r |
923 | \r |
fbc65db7 |
924 | if (!sh || !(sprited[1]&SPRL_MAY_HAVE_OP)) return;\r |
07abbab1 |
925 | \r |
926 | /* nasty 1: remove 'sprite' flags */\r |
927 | {\r |
928 | int c = 320/4, *zb = (int *)(HighCol+8);\r |
929 | while (c--)\r |
930 | {\r |
931 | *zb++ &= 0x7f7f7f7f;\r |
932 | }\r |
933 | }\r |
934 | \r |
ee4f03ae |
935 | /* nasty 2: sh operator pass */\r |
fbc65db7 |
936 | sprited[0] = sh_cnt;\r |
937 | DrawSpritesSHi(sprited);\r |
e5fa9817 |
938 | }\r |
939 | \r |
cc68a136 |
940 | \r |
941 | // Index + 0 : ----hhvv -lllllll -------y yyyyyyyy\r |
942 | // Index + 4 : -------x xxxxxxxx pccvhnnn nnnnnnnn\r |
943 | // v\r |
d9fc2fe1 |
944 | // Index + 0 : hhhhvvvv ----hhvv yyyyyyyy yyyyyyyy // v, h: vert./horiz. size\r |
cc68a136 |
945 | // Index + 4 : xxxxxxxx xxxxxxxx pccvhnnn nnnnnnnn // x: x coord + 8\r |
946 | \r |
283fec1b |
947 | void PrepareSprites(int full)\r |
cc68a136 |
948 | {\r |
949 | struct PicoVideo *pvid=&Pico.video;\r |
fbc65db7 |
950 | int u,link=0,sh;\r |
cc68a136 |
951 | int table=0;\r |
952 | int *pd = HighPreSpr;\r |
947fb5f9 |
953 | int max_lines = 224, max_sprites = 80, max_width = 328;\r |
d9fc2fe1 |
954 | int max_line_sprites = 20; // 20 sprites, 40 tiles\r |
955 | \r |
956 | if (!(Pico.video.reg[12]&1))\r |
947fb5f9 |
957 | max_sprites = 64, max_line_sprites = 16, max_width = 264;\r |
d9fc2fe1 |
958 | if (PicoOpt & POPT_DIS_SPRITE_LIM)\r |
959 | max_line_sprites = MAX_LINE_SPRITES;\r |
960 | \r |
961 | if (pvid->reg[1]&8) max_lines = 240;\r |
fbc65db7 |
962 | sh = Pico.video.reg[0xC]&8; // shadow/hilight?\r |
cc68a136 |
963 | \r |
964 | table=pvid->reg[5]&0x7f;\r |
965 | if (pvid->reg[12]&1) table&=0x7e; // Lowest bit 0 in 40-cell mode\r |
966 | table<<=8; // Get sprite table address/2\r |
967 | \r |
968 | if (!full)\r |
969 | {\r |
970 | int pack;\r |
971 | // updates: tilecode, sx\r |
4c436138 |
972 | for (u=0; u < max_sprites && (pack = *pd); u++, pd+=2)\r |
cc68a136 |
973 | {\r |
974 | unsigned int *sprite;\r |
d9fc2fe1 |
975 | int code2, sx, sy, height;\r |
cc68a136 |
976 | \r |
977 | sprite=(unsigned int *)(Pico.vram+((table+(link<<2))&0x7ffc)); // Find sprite\r |
978 | \r |
979 | // parse sprite info\r |
cc68a136 |
980 | code2 = sprite[1];\r |
d9fc2fe1 |
981 | sx = (code2>>16)&0x1ff;\r |
982 | sx -= 0x78; // Get X coordinate + 8\r |
983 | sy = (pack << 16) >> 16;\r |
947fb5f9 |
984 | height = (pack >> 24) & 0xf;\r |
cc68a136 |
985 | \r |
d9fc2fe1 |
986 | if (sy < max_lines && sy + (height<<3) > DrawScanline && // sprite onscreen (y)?\r |
947fb5f9 |
987 | (sx > -24 || sx < max_width)) // onscreen x\r |
d9fc2fe1 |
988 | {\r |
989 | int y = (sy >= DrawScanline) ? sy : DrawScanline;\r |
ee4f03ae |
990 | int entry = ((pd - HighPreSpr) / 2) | ((code2>>8)&0x80);\r |
d9fc2fe1 |
991 | for (; y < sy + (height<<3) && y < max_lines; y++)\r |
992 | {\r |
947fb5f9 |
993 | int i, cnt;\r |
d9fc2fe1 |
994 | cnt = HighLnSpr[y][0] & 0x7f;\r |
995 | if (cnt >= max_line_sprites) continue; // sprite limit?\r |
d9fc2fe1 |
996 | \r |
997 | for (i = 0; i < cnt; i++)\r |
fbc65db7 |
998 | if (((HighLnSpr[y][3+i] ^ entry) & 0x7f) == 0) goto found;\r |
d9fc2fe1 |
999 | \r |
1000 | // this sprite was previously missing\r |
fbc65db7 |
1001 | HighLnSpr[y][3+cnt] = entry;\r |
d9fc2fe1 |
1002 | HighLnSpr[y][0] = cnt + 1;\r |
1003 | found:;\r |
e352c3af |
1004 | if (entry & 0x80)\r |
fbc65db7 |
1005 | HighLnSpr[y][1] |= SPRL_HAVE_HI;\r |
1006 | else HighLnSpr[y][1] |= SPRL_HAVE_LO;\r |
d9fc2fe1 |
1007 | }\r |
cc68a136 |
1008 | }\r |
1009 | \r |
d9fc2fe1 |
1010 | code2 &= ~0xfe000000;\r |
1011 | code2 -= 0x00780000; // Get X coordinate + 8 in upper 16 bits\r |
1012 | pd[1] = code2;\r |
cc68a136 |
1013 | \r |
1014 | // Find next sprite\r |
d9fc2fe1 |
1015 | link=(sprite[0]>>16)&0x7f;\r |
1016 | if (!link) break; // End of sprites\r |
cc68a136 |
1017 | }\r |
cc68a136 |
1018 | }\r |
1019 | else\r |
1020 | {\r |
d9fc2fe1 |
1021 | for (u = 0; u < max_lines; u++)\r |
1022 | *((int *)&HighLnSpr[u][0]) = 0;\r |
1023 | \r |
4c436138 |
1024 | for (u = 0; u < max_sprites; u++)\r |
cc68a136 |
1025 | {\r |
1026 | unsigned int *sprite;\r |
d9fc2fe1 |
1027 | int code, code2, sx, sy, hv, height, width;\r |
cc68a136 |
1028 | \r |
1029 | sprite=(unsigned int *)(Pico.vram+((table+(link<<2))&0x7ffc)); // Find sprite\r |
1030 | \r |
1031 | // parse sprite info\r |
1032 | code = sprite[0];\r |
1033 | sy = (code&0x1ff)-0x80;\r |
1034 | hv = (code>>24)&0xf;\r |
1035 | height = (hv&3)+1;\r |
1036 | \r |
cc68a136 |
1037 | width = (hv>>2)+1;\r |
1038 | code2 = sprite[1];\r |
1039 | sx = (code2>>16)&0x1ff;\r |
1040 | sx -= 0x78; // Get X coordinate + 8\r |
6d7acf9e |
1041 | \r |
d9fc2fe1 |
1042 | if (sy < max_lines && sy + (height<<3) > DrawScanline) // sprite onscreen (y)?\r |
1043 | {\r |
fbc65db7 |
1044 | int entry, y, sx_min, onscr_x, maybe_op = 0;\r |
1045 | \r |
1046 | sx_min = 8-(width<<3);\r |
1047 | onscr_x = sx_min < sx && sx < max_width;\r |
1048 | if (sh && (code2 & 0x6000) == 0x6000)\r |
1049 | maybe_op = SPRL_MAY_HAVE_OP;\r |
1050 | \r |
fbc65db7 |
1051 | entry = ((pd - HighPreSpr) / 2) | ((code2>>8)&0x80);\r |
1052 | y = (sy >= DrawScanline) ? sy : DrawScanline;\r |
d9fc2fe1 |
1053 | for (; y < sy + (height<<3) && y < max_lines; y++)\r |
1054 | {\r |
0fc0e241 |
1055 | unsigned char *p = &HighLnSpr[y][0];\r |
1056 | int cnt = p[0];\r |
d9fc2fe1 |
1057 | if (cnt >= max_line_sprites) continue; // sprite limit?\r |
1058 | \r |
0fc0e241 |
1059 | if (p[2] >= max_line_sprites*2) { // tile limit?\r |
1060 | p[0] |= 0x80;\r |
947fb5f9 |
1061 | continue;\r |
d9fc2fe1 |
1062 | }\r |
0fc0e241 |
1063 | p[2] += width;\r |
d9fc2fe1 |
1064 | \r |
1065 | if (sx == -0x78) {\r |
1066 | if (cnt > 0)\r |
0fc0e241 |
1067 | p[0] |= 0x80; // masked, no more sprites for this line\r |
947fb5f9 |
1068 | continue;\r |
d9fc2fe1 |
1069 | }\r |
1070 | // must keep the first sprite even if it's offscreen, for masking\r |
fbc65db7 |
1071 | if (cnt > 0 && !onscr_x) continue; // offscreen x\r |
d9fc2fe1 |
1072 | \r |
0fc0e241 |
1073 | p[3+cnt] = entry;\r |
1074 | p[0] = cnt + 1;\r |
1075 | p[1] |= (entry & 0x80) ? SPRL_HAVE_HI : SPRL_HAVE_LO;\r |
1076 | p[1] |= maybe_op; // there might be op sprites on this line\r |
1077 | if (cnt > 0 && (code2 & 0x8000) && !(p[3+cnt-1]&0x80))\r |
1078 | p[1] |= SPRL_LO_ABOVE_HI;\r |
d9fc2fe1 |
1079 | }\r |
cc68a136 |
1080 | }\r |
6d7acf9e |
1081 | \r |
d9fc2fe1 |
1082 | *pd++ = (width<<28)|(height<<24)|(hv<<16)|((unsigned short)sy);\r |
cc68a136 |
1083 | *pd++ = (sx<<16)|((unsigned short)code2);\r |
6d7acf9e |
1084 | \r |
cc68a136 |
1085 | // Find next sprite\r |
1086 | link=(code>>16)&0x7f;\r |
d9fc2fe1 |
1087 | if (!link) break; // End of sprites\r |
cc68a136 |
1088 | }\r |
d9fc2fe1 |
1089 | *pd = 0;\r |
1090 | \r |
1091 | #if 0\r |
1092 | for (u = 0; u < max_lines; u++)\r |
1093 | {\r |
1094 | int y;\r |
fbc65db7 |
1095 | printf("c%03i: %2i, %2i: ", u, HighLnSpr[u][0] & 0x7f, HighLnSpr[u][2]);\r |
d9fc2fe1 |
1096 | for (y = 0; y < HighLnSpr[u][0] & 0x7f; y++)\r |
fbc65db7 |
1097 | printf(" %i", HighLnSpr[u][y+3]);\r |
d9fc2fe1 |
1098 | printf("\n");\r |
1099 | }\r |
1100 | #endif\r |
cc68a136 |
1101 | }\r |
1102 | }\r |
1103 | \r |
283fec1b |
1104 | #ifndef _ASM_DRAW_C\r |
fbc65db7 |
1105 | static void DrawAllSprites(unsigned char *sprited, int prio, int sh)\r |
cc68a136 |
1106 | {\r |
fbc65db7 |
1107 | int rs = rendstatus;\r |
d9fc2fe1 |
1108 | unsigned char *p;\r |
97a7f774 |
1109 | int cnt;\r |
cc68a136 |
1110 | \r |
602133e1 |
1111 | if (rs & (PDRAW_SPRITES_MOVED|PDRAW_DIRTY_SPRITES)) {\r |
d9fc2fe1 |
1112 | //elprintf(EL_STATUS, "PrepareSprites(%i)", (rs>>4)&1);\r |
602133e1 |
1113 | PrepareSprites(rs & PDRAW_DIRTY_SPRITES);\r |
1114 | rendstatus = rs & ~(PDRAW_SPRITES_MOVED|PDRAW_DIRTY_SPRITES);\r |
cc68a136 |
1115 | }\r |
381eea9b |
1116 | \r |
fbc65db7 |
1117 | cnt = sprited[0] & 0x7f;\r |
ee4f03ae |
1118 | if (cnt == 0) return;\r |
cc68a136 |
1119 | \r |
fbc65db7 |
1120 | p = &sprited[3];\r |
cc68a136 |
1121 | \r |
ee4f03ae |
1122 | // Go through sprites backwards:\r |
1123 | for (cnt--; cnt >= 0; cnt--)\r |
1124 | {\r |
1125 | int offs;\r |
97a7f774 |
1126 | if ((p[cnt] >> 7) != prio) continue;\r |
ee4f03ae |
1127 | offs = (p[cnt]&0x7f) * 2;\r |
97a7f774 |
1128 | DrawSprite(HighPreSpr + offs, sh);\r |
cc68a136 |
1129 | }\r |
cc68a136 |
1130 | }\r |
1131 | \r |
1132 | \r |
1133 | // --------------------------------------------\r |
1134 | \r |
cc68a136 |
1135 | static void BackFill(int reg7, int sh)\r |
1136 | {\r |
b542be46 |
1137 | unsigned int back;\r |
cc68a136 |
1138 | \r |
1139 | // Start with a blank scanline (background colour):\r |
1140 | back=reg7&0x3f;\r |
1141 | back|=sh<<6;\r |
1142 | back|=back<<8;\r |
1143 | back|=back<<16;\r |
1144 | \r |
b542be46 |
1145 | memset32((int *)(HighCol+8), back, 320/4);\r |
cc68a136 |
1146 | }\r |
1147 | #endif\r |
1148 | \r |
1149 | // --------------------------------------------\r |
1150 | \r |
1151 | unsigned short HighPal[0x100];\r |
1152 | \r |
b2305d08 |
1153 | #ifndef _ASM_DRAW_C\r |
e55f0cbb |
1154 | void PicoDoHighPal555(int sh)\r |
1155 | {\r |
1156 | unsigned short *pal=HighPal;\r |
1157 | int i, t;\r |
1158 | \r |
1159 | Pico.m.dirtyPal = 0;\r |
1160 | \r |
1161 | {\r |
1162 | unsigned int *spal=(void *)Pico.cram;\r |
1163 | unsigned int *dpal=(void *)HighPal;\r |
1164 | for (i = 0x3f/2; i >= 0; i--)\r |
1165 | #ifdef USE_BGR555\r |
1166 | dpal[i] = ((spal[i]&0x000f000f)<< 1)|((spal[i]&0x00f000f0)<<3)|((spal[i]&0x0f000f00)<<4);\r |
1167 | #else\r |
1168 | dpal[i] = ((spal[i]&0x000f000f)<<12)|((spal[i]&0x00f000f0)<<3)|((spal[i]&0x0f000f00)>>7);\r |
1169 | #endif\r |
1170 | }\r |
1171 | \r |
1172 | if (sh)\r |
1173 | {\r |
1174 | // shadowed pixels\r |
1175 | for (i = 0x3f; i >= 0; i--)\r |
1176 | pal[0x40|i] = pal[0xc0|i] = (unsigned short)((pal[i]>>1)&0x738e);\r |
1177 | // hilighted pixels\r |
1178 | for (i = 0x3f; i >= 0; i--) {\r |
1179 | t=pal[i]&0xe71c;t+=0x4208;if(t&0x20)t|=0x1c;if(t&0x800)t|=0x700;if(t&0x10000)t|=0xe000;t&=0xe71c;\r |
1180 | pal[0x80|i]=(unsigned short)t;\r |
1181 | }\r |
1182 | }\r |
1183 | }\r |
1184 | \r |
cc68a136 |
1185 | static void FinalizeLineBGR444(int sh)\r |
1186 | {\r |
1187 | unsigned short *pd=DrawLineDest;\r |
1188 | unsigned char *ps=HighCol+8;\r |
1189 | unsigned short *pal=Pico.cram;\r |
e5fa9817 |
1190 | int len, i, t, mask=0xff;\r |
cc68a136 |
1191 | \r |
1192 | if (Pico.video.reg[12]&1) {\r |
1193 | len = 320;\r |
1194 | } else {\r |
602133e1 |
1195 | if(!(PicoOpt&POPT_DIS_32C_BORDER)) pd+=32;\r |
cc68a136 |
1196 | len = 256;\r |
1197 | }\r |
1198 | \r |
1199 | if(sh) {\r |
1200 | pal=HighPal;\r |
1201 | if(Pico.m.dirtyPal) {\r |
1202 | blockcpy(pal, Pico.cram, 0x40*2);\r |
1203 | // shadowed pixels\r |
1204 | for(i = 0x3f; i >= 0; i--)\r |
1205 | pal[0x40|i] = pal[0xc0|i] = (unsigned short)((pal[i]>>1)&0x0777);\r |
1206 | // hilighted pixels\r |
1207 | for(i = 0x3f; i >= 0; i--) {\r |
1208 | t=pal[i]&0xeee;t+=0x444;if(t&0x10)t|=0xe;if(t&0x100)t|=0xe0;if(t&0x1000)t|=0xe00;t&=0xeee;\r |
1209 | pal[0x80|i]=(unsigned short)t;\r |
1210 | }\r |
1211 | Pico.m.dirtyPal = 0;\r |
1212 | }\r |
1213 | }\r |
1214 | \r |
f8af9634 |
1215 | if (!sh && (rendstatus & PDRAW_SPR_LO_ON_HI))\r |
e5fa9817 |
1216 | mask=0x3f; // accurate sprites\r |
1217 | \r |
cc68a136 |
1218 | for(i = 0; i < len; i++)\r |
e5fa9817 |
1219 | pd[i] = pal[ps[i] & mask];\r |
cc68a136 |
1220 | }\r |
1221 | \r |
1222 | \r |
1223 | static void FinalizeLineRGB555(int sh)\r |
1224 | {\r |
1225 | unsigned short *pd=DrawLineDest;\r |
1226 | unsigned char *ps=HighCol+8;\r |
1227 | unsigned short *pal=HighPal;\r |
e55f0cbb |
1228 | int len;\r |
cc68a136 |
1229 | \r |
e55f0cbb |
1230 | if (Pico.m.dirtyPal)\r |
1231 | PicoDoHighPal555(sh);\r |
cc68a136 |
1232 | \r |
70357ce5 |
1233 | if (Pico.video.reg[12]&1) {\r |
1234 | len = 320;\r |
1235 | } else {\r |
602133e1 |
1236 | if (!(PicoOpt&POPT_DIS_32C_BORDER)) pd+=32;\r |
70357ce5 |
1237 | len = 256;\r |
1238 | }\r |
1239 | \r |
e5fa9817 |
1240 | {\r |
70357ce5 |
1241 | #ifndef PSP\r |
e55f0cbb |
1242 | int i, mask=0xff;\r |
f8af9634 |
1243 | if (!sh && (rendstatus & PDRAW_SPR_LO_ON_HI))\r |
e5fa9817 |
1244 | mask=0x3f; // accurate sprites, upper bits are priority stuff\r |
1245 | \r |
1246 | for (i = 0; i < len; i++)\r |
1247 | pd[i] = pal[ps[i] & mask];\r |
70357ce5 |
1248 | #else\r |
70357ce5 |
1249 | extern void amips_clut(unsigned short *dst, unsigned char *src, unsigned short *pal, int count);\r |
e5fa9817 |
1250 | extern void amips_clut_6bit(unsigned short *dst, unsigned char *src, unsigned short *pal, int count);\r |
f8af9634 |
1251 | if (!sh && (rendstatus & PDRAW_SPR_LO_ON_HI))\r |
e5fa9817 |
1252 | amips_clut_6bit(pd, ps, pal, len);\r |
1253 | else amips_clut(pd, ps, pal, len);\r |
70357ce5 |
1254 | #endif\r |
e5fa9817 |
1255 | }\r |
cc68a136 |
1256 | }\r |
1257 | #endif\r |
1258 | \r |
1259 | static void FinalizeLine8bit(int sh)\r |
1260 | {\r |
1261 | unsigned char *pd=DrawLineDest;\r |
1262 | int len, rs = rendstatus;\r |
1263 | static int dirty_count;\r |
1264 | \r |
f8af9634 |
1265 | if (!sh && Pico.m.dirtyPal == 1 && DrawScanline < 222)\r |
602133e1 |
1266 | {\r |
cc68a136 |
1267 | // a hack for mid-frame palette changes\r |
602133e1 |
1268 | if (!(rs & PDRAW_SONIC_MODE))\r |
cc68a136 |
1269 | dirty_count = 1;\r |
1270 | else dirty_count++;\r |
602133e1 |
1271 | rs |= PDRAW_SONIC_MODE;\r |
cc68a136 |
1272 | rendstatus = rs;\r |
1273 | if (dirty_count == 3) {\r |
1274 | blockcpy(HighPal, Pico.cram, 0x40*2);\r |
1275 | } else if (dirty_count == 11) {\r |
1276 | blockcpy(HighPal+0x40, Pico.cram, 0x40*2);\r |
1277 | }\r |
1278 | }\r |
1279 | \r |
1280 | if (Pico.video.reg[12]&1) {\r |
1281 | len = 320;\r |
1282 | } else {\r |
602133e1 |
1283 | if (!(PicoOpt&POPT_DIS_32C_BORDER)) pd+=32;\r |
cc68a136 |
1284 | len = 256;\r |
1285 | }\r |
1286 | \r |
602133e1 |
1287 | if (!sh && (rs & PDRAW_SONIC_MODE)) {\r |
cc68a136 |
1288 | if (dirty_count >= 11) {\r |
1289 | blockcpy_or(pd, HighCol+8, len, 0x80);\r |
1290 | } else {\r |
1291 | blockcpy_or(pd, HighCol+8, len, 0x40);\r |
1292 | }\r |
1293 | } else {\r |
1294 | blockcpy(pd, HighCol+8, len);\r |
1295 | }\r |
1296 | }\r |
1297 | \r |
ea8c405f |
1298 | static void (*FinalizeLine)(int sh) = FinalizeLineBGR444;\r |
cc68a136 |
1299 | \r |
b6d7ac70 |
1300 | // --------------------------------------------\r |
1301 | \r |
1302 | static void DrawBlankedLine(void)\r |
602133e1 |
1303 | {\r |
b6d7ac70 |
1304 | int sh=(Pico.video.reg[0xC]&8)>>3; // shadow/hilight?\r |
602133e1 |
1305 | \r |
1306 | if (PicoScanBegin != NULL)\r |
b6d7ac70 |
1307 | PicoScanBegin(DrawScanline);\r |
602133e1 |
1308 | \r |
1309 | BackFill(Pico.video.reg[7], sh);\r |
1310 | \r |
1311 | if (FinalizeLine != NULL)\r |
1312 | FinalizeLine(sh);\r |
1313 | \r |
1314 | if (PicoScanEnd != NULL)\r |
b6d7ac70 |
1315 | PicoScanEnd(DrawScanline);\r |
602133e1 |
1316 | }\r |
1317 | \r |
0fc0e241 |
1318 | static int DrawDisplay(int sh)\r |
cc68a136 |
1319 | {\r |
fbc65db7 |
1320 | unsigned char *sprited = &HighLnSpr[DrawScanline][0];\r |
cc68a136 |
1321 | struct PicoVideo *pvid=&Pico.video;\r |
1322 | int win=0,edge=0,hvwind=0;\r |
fbc65db7 |
1323 | int maxw,maxcells;\r |
cc68a136 |
1324 | \r |
602133e1 |
1325 | rendstatus &= ~(PDRAW_SHHI_DONE|PDRAW_PLANE_HI_PRIO);\r |
740da8c6 |
1326 | \r |
fbc65db7 |
1327 | if (pvid->reg[12]&1) {\r |
cc68a136 |
1328 | maxw = 328; maxcells = 40;\r |
1329 | } else {\r |
1330 | maxw = 264; maxcells = 32;\r |
1331 | }\r |
1332 | \r |
1333 | // Find out if the window is on this line:\r |
1334 | win=pvid->reg[0x12];\r |
1335 | edge=(win&0x1f)<<3;\r |
1336 | \r |
b6d7ac70 |
1337 | if (win&0x80) { if (DrawScanline>=edge) hvwind=1; }\r |
1338 | else { if (DrawScanline< edge) hvwind=1; }\r |
cc68a136 |
1339 | \r |
fbc65db7 |
1340 | if (!hvwind) // we might have a vertical window here\r |
1341 | {\r |
cc68a136 |
1342 | win=pvid->reg[0x11];\r |
1343 | edge=win&0x1f;\r |
7a7c6476 |
1344 | if (win&0x80) {\r |
1345 | if (!edge) hvwind=1;\r |
cc68a136 |
1346 | else if(edge < (maxcells>>1)) hvwind=2;\r |
1347 | } else {\r |
7a7c6476 |
1348 | if (!edge);\r |
cc68a136 |
1349 | else if(edge < (maxcells>>1)) hvwind=2;\r |
1350 | else hvwind=1;\r |
1351 | }\r |
1352 | }\r |
1353 | \r |
fbc65db7 |
1354 | /* - layer B low - */\r |
1355 | if (PicoDrawMask & PDRAW_LAYERB_ON)\r |
1356 | DrawLayer(1|(sh<<1), HighCacheB, 0, maxcells);\r |
1357 | /* - layer A low - */\r |
1358 | if (!(PicoDrawMask & PDRAW_LAYERA_ON));\r |
1359 | else if (hvwind == 1)\r |
1360 | DrawWindow(0, maxcells>>1, 0, sh);\r |
7a7c6476 |
1361 | else if (hvwind == 2) {\r |
fbc65db7 |
1362 | DrawLayer(0|(sh<<1), HighCacheA, (win&0x80) ? 0 : edge<<1, (win&0x80) ? edge<<1 : maxcells);\r |
1363 | DrawWindow( (win&0x80) ? edge : 0, (win&0x80) ? maxcells>>1 : edge, 0, sh);\r |
cc68a136 |
1364 | } else\r |
fbc65db7 |
1365 | DrawLayer(0|(sh<<1), HighCacheA, 0, maxcells);\r |
1366 | /* - sprites low - */\r |
1367 | if (!(PicoDrawMask & PDRAW_SPRITES_LOW_ON));\r |
1368 | else if (rendstatus & PDRAW_INTERLACE)\r |
1369 | DrawAllSpritesInterlace(0, sh);\r |
1370 | else if (sprited[1] & SPRL_HAVE_LO)\r |
1371 | DrawAllSprites(sprited, 0, sh);\r |
1372 | \r |
1373 | /* - layer B hi - */\r |
1374 | if ((PicoDrawMask & PDRAW_LAYERB_ON) && HighCacheB[0])\r |
1375 | DrawTilesFromCache(HighCacheB, sh, maxw);\r |
1376 | /* - layer A hi - */\r |
1377 | if (!(PicoDrawMask & PDRAW_LAYERA_ON));\r |
1378 | else if (hvwind == 1)\r |
cc68a136 |
1379 | DrawWindow(0, maxcells>>1, 1, sh);\r |
7a7c6476 |
1380 | else if (hvwind == 2) {\r |
fbc65db7 |
1381 | if (HighCacheA[0]) DrawTilesFromCache(HighCacheA, sh, (win&0x80) ? edge<<4 : maxw);\r |
cc68a136 |
1382 | DrawWindow((win&0x80) ? edge : 0, (win&0x80) ? maxcells>>1 : edge, 1, sh);\r |
1383 | } else\r |
947fb5f9 |
1384 | if (HighCacheA[0]) DrawTilesFromCache(HighCacheA, sh, maxw);\r |
fbc65db7 |
1385 | /* - sprites hi - */\r |
1386 | if (!(PicoDrawMask & PDRAW_SPRITES_HI_ON));\r |
1387 | else if (rendstatus & PDRAW_INTERLACE)\r |
1388 | DrawAllSpritesInterlace(1, sh);\r |
f8af9634 |
1389 | // have sprites without layer pri bit ontop of sprites with that bit\r |
1390 | else if ((sprited[1] & 0xd0) == 0xd0 && (PicoOpt & POPT_ACC_SPRITES))\r |
fbc65db7 |
1391 | DrawSpritesHiAS(sprited, sh);\r |
1392 | else if (sh && (sprited[1] & SPRL_MAY_HAVE_OP))\r |
1393 | DrawSpritesSHi(sprited);\r |
1394 | else if (sprited[1] & SPRL_HAVE_HI)\r |
1395 | DrawAllSprites(sprited, 1, 0);\r |
cc68a136 |
1396 | \r |
740da8c6 |
1397 | #if 0\r |
1398 | {\r |
1399 | int *c, a, b;\r |
1400 | for (a = 0, c = HighCacheA; *c; c++, a++);\r |
1401 | for (b = 0, c = HighCacheB; *c; c++, b++);\r |
b6d7ac70 |
1402 | printf("%i:%03i: a=%i, b=%i\n", Pico.m.frame_count, DrawScanline, a, b);\r |
740da8c6 |
1403 | }\r |
1404 | #endif\r |
1405 | \r |
cc68a136 |
1406 | return 0;\r |
1407 | }\r |
1408 | \r |
f8af9634 |
1409 | // MUST be called every frame\r |
eff55556 |
1410 | PICO_INTERNAL void PicoFrameStart(void)\r |
cc68a136 |
1411 | {\r |
1412 | // prepare to do this frame\r |
ee4f03ae |
1413 | rendstatus = 0;\r |
fbc65db7 |
1414 | if ((Pico.video.reg[12]&6) == 6)\r |
97a7f774 |
1415 | rendstatus |= PDRAW_INTERLACE; // interlace mode\r |
e5fa9817 |
1416 | \r |
602133e1 |
1417 | if (Pico.m.dirtyPal) Pico.m.dirtyPal = 2; // reset dirty if needed\r |
cc68a136 |
1418 | \r |
d9fc2fe1 |
1419 | DrawScanline=0;\r |
cc68a136 |
1420 | PrepareSprites(1);\r |
602133e1 |
1421 | skip_next_line=0;\r |
cc68a136 |
1422 | }\r |
1423 | \r |
b6d7ac70 |
1424 | static void PicoLine(void)\r |
cc68a136 |
1425 | {\r |
0fc0e241 |
1426 | int sh;\r |
b6d7ac70 |
1427 | if (skip_next_line>0) { skip_next_line--; return; } // skip rendering lines\r |
cc68a136 |
1428 | \r |
cc68a136 |
1429 | sh=(Pico.video.reg[0xC]&8)>>3; // shadow/hilight?\r |
1430 | \r |
602133e1 |
1431 | if (PicoScanBegin != NULL)\r |
b6d7ac70 |
1432 | skip_next_line = PicoScanBegin(DrawScanline);\r |
602133e1 |
1433 | \r |
cc68a136 |
1434 | // Draw screen:\r |
0fc0e241 |
1435 | BackFill(Pico.video.reg[7], sh);\r |
cc68a136 |
1436 | if (Pico.video.reg[1]&0x40)\r |
0fc0e241 |
1437 | DrawDisplay(sh);\r |
cc68a136 |
1438 | \r |
ea8c405f |
1439 | if (FinalizeLine != NULL)\r |
1440 | FinalizeLine(sh);\r |
cc68a136 |
1441 | \r |
602133e1 |
1442 | if (PicoScanEnd != NULL)\r |
6a13ef3f |
1443 | skip_next_line = PicoScanEnd(DrawScanline);\r |
cc68a136 |
1444 | }\r |
1445 | \r |
b6d7ac70 |
1446 | void PicoDrawSync(int to, int blank_last_line)\r |
1447 | {\r |
1448 | for (; DrawScanline < to; DrawScanline++)\r |
1449 | {\r |
1450 | #if !CAN_HANDLE_240_LINES\r |
1451 | if (DrawScanline >= 224) break;\r |
1452 | #endif\r |
1453 | PicoLine();\r |
1454 | }\r |
1455 | \r |
1456 | #if !CAN_HANDLE_240_LINES\r |
ca482e5d |
1457 | if (DrawScanline >= 224) { DrawScanline = 240; return; }\r |
b6d7ac70 |
1458 | #endif\r |
1459 | \r |
1460 | // last line\r |
1461 | if (DrawScanline <= to)\r |
1462 | {\r |
1463 | if (blank_last_line)\r |
1464 | DrawBlankedLine();\r |
1465 | else PicoLine();\r |
1466 | DrawScanline++;\r |
1467 | }\r |
1468 | }\r |
cc68a136 |
1469 | \r |
1470 | void PicoDrawSetColorFormat(int which)\r |
1471 | {\r |
ea8c405f |
1472 | switch (which)\r |
1473 | {\r |
1474 | case 2: FinalizeLine = FinalizeLine8bit; break;\r |
1475 | case 1: FinalizeLine = FinalizeLineRGB555; break;\r |
1476 | case 0: FinalizeLine = FinalizeLineBGR444; break;\r |
1477 | default:FinalizeLine = NULL; break;\r |
1478 | }\r |
499a0be3 |
1479 | #if OVERRIDE_HIGHCOL\r |
1480 | if (which) HighCol=DefHighCol;\r |
1481 | #endif\r |
cc68a136 |
1482 | }\r |
ea8c405f |
1483 | \r |