3 * (c) Copyright Dave, 2004
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4 * (C) notaz, 2006-2010
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6 * This work is licensed under the terms of MAME license.
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7 * See COPYING file in the top-level directory.
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10 * The renderer has 4 modes now:
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12 * - shadow/hilight (s/h)
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13 * - "sonic mode" for midline palette changes (8bit mode only)
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14 * - accurate sprites (AS) [+ s/h]
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16 * s/h uses upper bits for both priority and shadow/hilight flags.
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17 * "sonic mode" is autodetected, shadow/hilight is enabled by emulated game.
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18 * AS is enabled by user and takes priority over "sonic mode".
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20 * since renderer always draws line in 8bit mode, there are 2 spare bits:
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21 * b \ mode: s/h sonic
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22 * 00 normal pal index
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23 * 01 shadow pal index
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24 * 10 hilight+op spr pal index
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25 * 11 shadow +op spr pal index
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27 * not handled properly:
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28 * - hilight op on shadow tile
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31 #include "pico_int.h"
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33 int (*PicoScanBegin)(unsigned int num) = NULL;
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34 int (*PicoScanEnd) (unsigned int num) = NULL;
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36 static unsigned char DefHighCol[8+320+8];
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37 static unsigned char *HighColBase = DefHighCol;
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38 static int HighColIncrement;
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40 static unsigned int DefOutBuff[320*2/2];
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41 void *DrawLineDestBase = DefOutBuff;
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42 int DrawLineDestIncrement;
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44 static int HighCacheA[41+1]; // caches for high layers
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45 static int HighCacheB[41+1];
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46 static int HighPreSpr[80*2+1]; // slightly preprocessed sprites
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48 #define LF_PLANE_1 (1 << 0)
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49 #define LF_SH (1 << 1) // must be = 2
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50 #define LF_FORCE (1 << 2)
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52 #define SPRL_HAVE_HI 0x80 // have hi priority sprites
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53 #define SPRL_HAVE_LO 0x40 // *lo*
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54 #define SPRL_MAY_HAVE_OP 0x20 // may have operator sprites on the line
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55 #define SPRL_LO_ABOVE_HI 0x10 // low priority sprites may be on top of hi
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56 unsigned char HighLnSpr[240][3 + MAX_LINE_SPRITES]; // sprite_count, ^flags, tile_count, [spritep]...
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61 static int skip_next_line=0;
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65 int nametab; // Position in VRAM of name table (for this tile line)
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66 int line; // Line number in pixels 0x000-0x3ff within the virtual tilemap
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67 int hscroll; // Horizontal scroll value in pixels for the line
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68 int xmask; // X-Mask (0x1f - 0x7f) for horizontal wraparound in the tilemap
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69 int *hc; // cache for high tile codes and their positions
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70 int cells; // cells (tiles) to draw (32 col mode doesn't need to update whole 320)
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73 // stuff available in asm:
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75 void DrawWindow(int tstart, int tend, int prio, int sh,
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76 struct PicoEState *est);
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77 void DrawAllSprites(unsigned char *sprited, int prio, int sh,
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78 struct PicoEState *est);
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79 void DrawTilesFromCache(int *hc, int sh, int rlim,
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80 struct PicoEState *est);
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81 void DrawSpritesSHi(unsigned char *sprited, struct PicoEState *est);
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82 void DrawLayer(int plane_sh, int *hcache, int cellskip, int maxcells,
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83 struct PicoEState *est);
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84 void *blockcpy(void *dst, const void *src, size_t n);
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85 void blockcpy_or(void *dst, void *src, size_t n, int pat);
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88 void blockcpy_or(void *dst, void *src, size_t n, int pat)
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90 unsigned char *pd = dst, *ps = src;
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92 *pd++ = (unsigned char) (*ps++ | pat);
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94 #define blockcpy memcpy
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97 #define TileNormMaker_(pix_func) \
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101 t = (pack&0x0000f000)>>12; pix_func(0); \
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102 t = (pack&0x00000f00)>> 8; pix_func(1); \
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103 t = (pack&0x000000f0)>> 4; pix_func(2); \
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104 t = (pack&0x0000000f) ; pix_func(3); \
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105 t = (pack&0xf0000000)>>28; pix_func(4); \
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106 t = (pack&0x0f000000)>>24; pix_func(5); \
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107 t = (pack&0x00f00000)>>20; pix_func(6); \
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108 t = (pack&0x000f0000)>>16; pix_func(7); \
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111 #define TileFlipMaker_(pix_func) \
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115 t = (pack&0x000f0000)>>16; pix_func(0); \
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116 t = (pack&0x00f00000)>>20; pix_func(1); \
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117 t = (pack&0x0f000000)>>24; pix_func(2); \
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118 t = (pack&0xf0000000)>>28; pix_func(3); \
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119 t = (pack&0x0000000f) ; pix_func(4); \
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120 t = (pack&0x000000f0)>> 4; pix_func(5); \
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121 t = (pack&0x00000f00)>> 8; pix_func(6); \
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122 t = (pack&0x0000f000)>>12; pix_func(7); \
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125 #define TileNormMaker(funcname, pix_func) \
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126 static void funcname(unsigned char *pd, unsigned int pack, int pal) \
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127 TileNormMaker_(pix_func)
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129 #define TileFlipMaker(funcname, pix_func) \
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130 static void funcname(unsigned char *pd, unsigned int pack, int pal) \
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131 TileFlipMaker_(pix_func)
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133 #define TileNormMakerAS(funcname, pix_func) \
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134 static void funcname(unsigned char *pd, unsigned char *mb, unsigned int pack, int pal) \
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135 TileNormMaker_(pix_func)
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137 #define TileFlipMakerAS(funcname, pix_func) \
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138 static void funcname(unsigned char *pd, unsigned char *mb, unsigned int pack, int pal) \
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139 TileFlipMaker_(pix_func)
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141 #define pix_just_write(x) \
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144 TileNormMaker(TileNorm,pix_just_write)
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145 TileFlipMaker(TileFlip,pix_just_write)
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147 #ifndef _ASM_DRAW_C
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149 // draw a sprite pixel, process operator colors
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150 #define pix_sh(x) \
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152 else if (t>=0xe) pd[x]=(pd[x]&0x3f)|(t<<6); /* c0 shadow, 80 hilight */ \
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155 TileNormMaker(TileNormSH, pix_sh)
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156 TileFlipMaker(TileFlipSH, pix_sh)
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158 // draw a sprite pixel, mark operator colors
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159 #define pix_sh_markop(x) \
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161 else if (t>=0xe) pd[x]|=0x80; \
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164 TileNormMaker(TileNormSH_markop, pix_sh_markop)
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165 TileFlipMaker(TileFlipSH_markop, pix_sh_markop)
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169 // process operator pixels only, apply only on low pri tiles and other op pixels
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170 #define pix_sh_onlyop(x) \
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171 if (t>=0xe && (pd[x]&0xc0)) \
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172 pd[x]=(pd[x]&0x3f)|(t<<6); /* c0 shadow, 80 hilight */ \
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174 #ifndef _ASM_DRAW_C
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176 TileNormMaker(TileNormSH_onlyop_lp, pix_sh_onlyop)
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177 TileFlipMaker(TileFlipSH_onlyop_lp, pix_sh_onlyop)
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181 // draw a sprite pixel (AS)
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182 #define pix_as(x) \
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183 if (t & mb[x]) mb[x] = 0, pd[x] = pal | t
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185 TileNormMakerAS(TileNormAS, pix_as)
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186 TileFlipMakerAS(TileFlipAS, pix_as)
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188 // draw a sprite pixel, process operator colors (AS)
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189 #define pix_sh_as(x) \
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192 if (t>=0xe) pd[x]=(pd[x]&0x3f)|(t<<6); /* c0 shadow, 80 hilight */ \
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193 else pd[x] = pal | t; \
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196 TileNormMakerAS(TileNormSH_AS, pix_sh_as)
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197 TileFlipMakerAS(TileFlipSH_AS, pix_sh_as)
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199 #define pix_sh_as_onlyop(x) \
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202 pix_sh_onlyop(x); \
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205 TileNormMakerAS(TileNormSH_AS_onlyop_lp, pix_sh_as_onlyop)
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206 TileFlipMakerAS(TileFlipSH_AS_onlyop_lp, pix_sh_as_onlyop)
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208 // mark pixel as sprite pixel (AS)
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209 #define pix_sh_as_onlymark(x) \
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212 TileNormMakerAS(TileNormAS_onlymark, pix_sh_as_onlymark)
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213 TileFlipMakerAS(TileFlipAS_onlymark, pix_sh_as_onlymark)
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215 // forced both layer draw (through debug reg)
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216 #define pix_and(x) \
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217 pd[x] = (pd[x] & 0xc0) | (pd[x] & (pal | t))
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219 TileNormMaker(TileNorm_and, pix_and)
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220 TileFlipMaker(TileFlip_and, pix_and)
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222 // --------------------------------------------
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224 #ifndef _ASM_DRAW_C
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225 static void DrawStrip(struct TileStrip *ts, int lflags, int cellskip)
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227 unsigned char *pd = Pico.est.HighCol;
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228 int tilex,dx,ty,code=0,addr=0,cells;
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229 int oldcode=-1,blank=-1; // The tile we know is blank
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232 // Draw tiles across screen:
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233 sh = (lflags & LF_SH) << 5; // 0x40
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234 tilex=((-ts->hscroll)>>3)+cellskip;
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235 ty=(ts->line&7)<<1; // Y-Offset into tile
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236 dx=((ts->hscroll-1)&7)+1;
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237 cells = ts->cells - cellskip;
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238 if(dx != 8) cells++; // have hscroll, need to draw 1 cell more
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241 for (; cells > 0; dx+=8, tilex++, cells--)
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245 code = PicoMem.vram[ts->nametab + (tilex & ts->xmask)];
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248 if ((code >> 15) | (lflags & LF_FORCE)) { // high priority tile
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249 int cval = code | (dx<<16) | (ty<<25);
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250 if(code&0x1000) cval^=7<<26;
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251 *ts->hc++ = cval; // cache it
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255 if (code!=oldcode) {
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257 // Get tile address/2:
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258 addr=(code&0x7ff)<<4;
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260 if (code&0x1000) addr^=0xe; // Y-flip
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262 pal=((code>>9)&0x30)|sh;
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265 pack = *(unsigned int *)(PicoMem.vram + addr);
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271 if (code & 0x0800) TileFlip(pd + dx, pack, pal);
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272 else TileNorm(pd + dx, pack, pal);
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275 // terminate the cache list
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277 // if oldcode wasn't changed, it means all layer is hi priority
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278 if (oldcode == -1) Pico.est.rendstatus |= PDRAW_PLANE_HI_PRIO;
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282 static void DrawStripVSRam(struct TileStrip *ts, int plane_sh, int cellskip)
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284 unsigned char *pd = Pico.est.HighCol;
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285 int tilex,dx,code=0,addr=0,cell=0;
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286 int oldcode=-1,blank=-1; // The tile we know is blank
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287 int pal=0,scan=Pico.est.DrawScanline;
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289 // Draw tiles across screen:
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290 tilex=(-ts->hscroll)>>3;
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291 dx=((ts->hscroll-1)&7)+1;
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292 if (ts->hscroll & 0x0f) {
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293 int adj = ((ts->hscroll ^ dx) >> 3) & 1;
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301 for (; cell < ts->cells; dx+=8,tilex++,cell++)
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303 int nametabadd, ty;
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309 vscroll=PicoMem.vsram[(plane_sh&1)+(cell&~1)];
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311 // Find the line in the name table
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312 line=(vscroll+scan)&ts->line&0xffff; // ts->line is really ymask ..
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313 nametabadd=(line>>3)<<(ts->line>>24); // .. and shift[width]
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314 ty=(line&7)<<1; // Y-Offset into tile
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317 code=PicoMem.vram[ts->nametab+nametabadd+(tilex&ts->xmask)];
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318 if (code==blank) continue;
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319 if (code>>15) { // high priority tile
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320 int cval = code | (dx<<16) | (ty<<25);
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321 if(code&0x1000) cval^=7<<26;
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322 *ts->hc++ = cval; // cache it
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326 if (code!=oldcode) {
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328 // Get tile address/2:
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329 addr=(code&0x7ff)<<4;
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330 if (code&0x1000) addr+=14-ty; else addr+=ty; // Y-flip
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332 pal=((code>>9)&0x30)|((plane_sh<<5)&0x40);
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335 pack = *(unsigned int *)(PicoMem.vram + addr);
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341 if (code & 0x0800) TileFlip(pd + dx, pack, pal);
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342 else TileNorm(pd + dx, pack, pal);
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345 // terminate the cache list
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347 if (oldcode == -1) Pico.est.rendstatus |= PDRAW_PLANE_HI_PRIO;
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351 #ifndef _ASM_DRAW_C
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354 void DrawStripInterlace(struct TileStrip *ts)
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356 unsigned char *pd = Pico.est.HighCol;
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357 int tilex=0,dx=0,ty=0,code=0,addr=0,cells;
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358 int oldcode=-1,blank=-1; // The tile we know is blank
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361 // Draw tiles across screen:
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362 tilex=(-ts->hscroll)>>3;
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363 ty=(ts->line&15)<<1; // Y-Offset into tile
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364 dx=((ts->hscroll-1)&7)+1;
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366 if(dx != 8) cells++; // have hscroll, need to draw 1 cell more
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368 for (; cells; dx+=8,tilex++,cells--)
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372 code = PicoMem.vram[ts->nametab + (tilex & ts->xmask)];
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373 if (code==blank) continue;
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374 if (code>>15) { // high priority tile
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375 int cval = (code&0xfc00) | (dx<<16) | (ty<<25);
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376 cval|=(code&0x3ff)<<1;
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377 if(code&0x1000) cval^=0xf<<26;
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378 *ts->hc++ = cval; // cache it
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382 if (code!=oldcode) {
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384 // Get tile address/2:
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385 addr=(code&0x7ff)<<5;
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386 if (code&0x1000) addr+=30-ty; else addr+=ty; // Y-flip
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388 // pal=Pico.cram+((code>>9)&0x30);
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389 pal=((code>>9)&0x30);
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392 pack = *(unsigned int *)(PicoMem.vram + addr);
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398 if (code & 0x0800) TileFlip(pd + dx, pack, pal);
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399 else TileNorm(pd + dx, pack, pal);
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402 // terminate the cache list
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406 // --------------------------------------------
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408 #ifndef _ASM_DRAW_C
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409 static void DrawLayer(int plane_sh, int *hcache, int cellskip, int maxcells,
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410 struct PicoEState *est)
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412 struct PicoVideo *pvid=&Pico.video;
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413 const char shift[4]={5,6,5,7}; // 32,64 or 128 sized tilemaps (2 is invalid)
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414 struct TileStrip ts;
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415 int width, height, ymask;
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421 // Work out the TileStrip to draw
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423 // Work out the name table size: 32 64 or 128 tiles (0-3)
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424 width=pvid->reg[16];
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425 height=(width>>4)&3; width&=3;
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427 ts.xmask=(1<<shift[width])-1; // X Mask in tiles (0x1f-0x7f)
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428 ymask=(height<<8)|0xff; // Y Mask in pixels
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430 case 1: ymask &= 0x1ff; break;
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431 case 2: ymask = 0x007; break;
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432 case 3: ymask = 0x0ff; break;
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435 // Find name table:
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436 if (plane_sh&1) ts.nametab=(pvid->reg[4]&0x07)<<12; // B
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437 else ts.nametab=(pvid->reg[2]&0x38)<< 9; // A
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439 htab=pvid->reg[13]<<9; // Horizontal scroll table address
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440 if ( pvid->reg[11]&2) htab+=est->DrawScanline<<1; // Offset by line
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441 if ((pvid->reg[11]&1)==0) htab&=~0xf; // Offset by tile
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442 htab+=plane_sh&1; // A or B
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444 // Get horizontal scroll value, will be masked later
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445 ts.hscroll = PicoMem.vram[htab & 0x7fff];
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447 if((pvid->reg[12]&6) == 6) {
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448 // interlace mode 2
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449 vscroll = PicoMem.vsram[plane_sh & 1]; // Get vertical scroll value
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451 // Find the line in the name table
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452 ts.line=(vscroll+(est->DrawScanline<<1))&((ymask<<1)|1);
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453 ts.nametab+=(ts.line>>4)<<shift[width];
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455 DrawStripInterlace(&ts);
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456 } else if( pvid->reg[11]&4) {
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457 // shit, we have 2-cell column based vscroll
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458 // luckily this doesn't happen too often
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459 ts.line=ymask|(shift[width]<<24); // save some stuff instead of line
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460 DrawStripVSRam(&ts, plane_sh, cellskip);
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462 vscroll = PicoMem.vsram[plane_sh & 1]; // Get vertical scroll value
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464 // Find the line in the name table
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465 ts.line=(vscroll+est->DrawScanline)&ymask;
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466 ts.nametab+=(ts.line>>3)<<shift[width];
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468 DrawStrip(&ts, plane_sh, cellskip);
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473 // --------------------------------------------
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475 // tstart & tend are tile pair numbers
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476 static void DrawWindow(int tstart, int tend, int prio, int sh,
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477 struct PicoEState *est)
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479 unsigned char *pd = Pico.est.HighCol;
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480 struct PicoVideo *pvid = &Pico.video;
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481 int tilex,ty,nametab,code=0;
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482 int blank=-1; // The tile we know is blank
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484 // Find name table line:
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485 if (pvid->reg[12]&1)
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487 nametab=(pvid->reg[3]&0x3c)<<9; // 40-cell mode
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488 nametab+=(est->DrawScanline>>3)<<6;
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492 nametab=(pvid->reg[3]&0x3e)<<9; // 32-cell mode
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493 nametab+=(est->DrawScanline>>3)<<5;
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498 if (!(est->rendstatus & PDRAW_WND_DIFF_PRIO)) {
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499 // check the first tile code
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500 code = PicoMem.vram[nametab + tilex];
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501 // if the whole window uses same priority (what is often the case), we may be able to skip this field
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502 if ((code>>15) != prio) return;
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506 ty=(est->DrawScanline&7)<<1; // Y-Offset into tile
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508 // Draw tiles across screen:
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511 for (; tilex < tend; tilex++)
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517 code = PicoMem.vram[nametab + tilex];
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518 if (code==blank) continue;
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519 if ((code>>15) != prio) {
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520 est->rendstatus |= PDRAW_WND_DIFF_PRIO;
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524 // Get tile address/2:
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525 addr=(code&0x7ff)<<4;
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526 if (code&0x1000) addr+=14-ty; else addr+=ty; // Y-flip
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528 pack = *(unsigned int *)(PicoMem.vram + addr);
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534 pal = ((code >> 9) & 0x30);
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535 dx = 8 + (tilex << 3);
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537 if (code & 0x0800) TileFlip(pd + dx, pack, pal);
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538 else TileNorm(pd + dx, pack, pal);
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543 for (; tilex < tend; tilex++)
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549 code = PicoMem.vram[nametab + tilex];
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550 if(code==blank) continue;
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551 if((code>>15) != prio) {
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552 est->rendstatus |= PDRAW_WND_DIFF_PRIO;
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556 pal=((code>>9)&0x30);
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559 int *zb = (int *)(est->HighCol+8+(tilex<<3));
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560 *zb++ &= 0xbfbfbfbf;
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566 // Get tile address/2:
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567 addr=(code&0x7ff)<<4;
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568 if (code&0x1000) addr+=14-ty; else addr+=ty; // Y-flip
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570 pack = *(unsigned int *)(PicoMem.vram + addr);
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576 dx = 8 + (tilex << 3);
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578 if (code & 0x0800) TileFlip(pd + dx, pack, pal);
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579 else TileNorm(pd + dx, pack, pal);
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584 // --------------------------------------------
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586 static void DrawTilesFromCacheShPrep(void)
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588 // as some layer has covered whole line with hi priority tiles,
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589 // we can process whole line and then act as if sh/hi mode was off,
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590 // but leave lo pri op sprite markers alone
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591 int c = 320/4, *zb = (int *)(Pico.est.HighCol+8);
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592 Pico.est.rendstatus |= PDRAW_SHHI_DONE;
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595 *zb++ &= 0xbfbfbfbf;
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599 static void DrawTilesFromCache(int *hc, int sh, int rlim, struct PicoEState *est)
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601 unsigned char *pd = Pico.est.HighCol;
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602 int code, addr, dx;
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606 // *ts->hc++ = code | (dx<<16) | (ty<<25); // cache it
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608 if (sh && (est->rendstatus & (PDRAW_SHHI_DONE|PDRAW_PLANE_HI_PRIO)))
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610 if (!(est->rendstatus & PDRAW_SHHI_DONE))
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611 DrawTilesFromCacheShPrep();
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617 short blank=-1; // The tile we know is blank
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618 while ((code=*hc++)) {
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619 if (!(code & 0x8000) || (short)code == blank)
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621 // Get tile address/2:
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622 addr = (code & 0x7ff) << 4;
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623 addr += code >> 25; // y offset into tile
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625 pack = *(unsigned int *)(PicoMem.vram + addr);
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627 blank = (short)code;
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631 dx = (code >> 16) & 0x1ff;
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632 pal = ((code >> 9) & 0x30);
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634 goto last_cut_tile;
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636 if (code & 0x0800) TileFlip(pd + dx, pack, pal);
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637 else TileNorm(pd + dx, pack, pal);
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642 while ((code=*hc++)) {
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645 // Get tile address/2:
\r
646 addr=(code&0x7ff)<<4;
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647 addr+=(unsigned int)code>>25; // y offset into tile
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648 dx=(code>>16)&0x1ff;
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649 zb = est->HighCol+dx;
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650 *zb++ &= 0xbf; *zb++ &= 0xbf; *zb++ &= 0xbf; *zb++ &= 0xbf;
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651 *zb++ &= 0xbf; *zb++ &= 0xbf; *zb++ &= 0xbf; *zb++ &= 0xbf;
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653 pack = *(unsigned int *)(PicoMem.vram + addr);
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657 pal = ((code >> 9) & 0x30);
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659 goto last_cut_tile;
\r
661 if (code & 0x0800) TileFlip(pd + dx, pack, pal);
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662 else TileNorm(pd + dx, pack, pal);
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668 // for vertical window cutoff
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677 case 7: t=pack&0x00000f00; if (t) pd[6]=(unsigned char)(pal|(t>> 8)); // "break" is left out intentionally
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678 case 6: t=pack&0x000000f0; if (t) pd[5]=(unsigned char)(pal|(t>> 4));
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679 case 5: t=pack&0x0000000f; if (t) pd[4]=(unsigned char)(pal|(t ));
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680 case 4: t=pack&0xf0000000; if (t) pd[3]=(unsigned char)(pal|(t>>28));
\r
681 case 3: t=pack&0x0f000000; if (t) pd[2]=(unsigned char)(pal|(t>>24));
\r
682 case 2: t=pack&0x00f00000; if (t) pd[1]=(unsigned char)(pal|(t>>20));
\r
683 case 1: t=pack&0x000f0000; if (t) pd[0]=(unsigned char)(pal|(t>>16));
\r
691 case 7: t=pack&0x00f00000; if (t) pd[6]=(unsigned char)(pal|(t>>20));
\r
692 case 6: t=pack&0x0f000000; if (t) pd[5]=(unsigned char)(pal|(t>>24));
\r
693 case 5: t=pack&0xf0000000; if (t) pd[4]=(unsigned char)(pal|(t>>28));
\r
694 case 4: t=pack&0x0000000f; if (t) pd[3]=(unsigned char)(pal|(t ));
\r
695 case 3: t=pack&0x000000f0; if (t) pd[2]=(unsigned char)(pal|(t>> 4));
\r
696 case 2: t=pack&0x00000f00; if (t) pd[1]=(unsigned char)(pal|(t>> 8));
\r
697 case 1: t=pack&0x0000f000; if (t) pd[0]=(unsigned char)(pal|(t>>12));
\r
704 // --------------------------------------------
\r
706 // Index + 0 : hhhhvvvv ab--hhvv yyyyyyyy yyyyyyyy // a: offscreen h, b: offs. v, h: horiz. size
\r
707 // Index + 4 : xxxxxxxx xxxxxxxx pccvhnnn nnnnnnnn // x: x coord + 8
\r
709 static void DrawSprite(int *sprite, int sh)
\r
711 void (*fTileFunc)(unsigned char *pd, unsigned int pack, int pal);
\r
712 unsigned char *pd = Pico.est.HighCol;
\r
713 int width=0,height=0;
\r
716 int tile=0,delta=0;
\r
719 // parse the sprite data
\r
724 height=(sy>>24)&7; // Width and height in tiles
\r
725 sy=(sy<<16)>>16; // Y
\r
727 row=Pico.est.DrawScanline-sy; // Row of the sprite we are on
\r
729 if (code&0x1000) row=(height<<3)-1-row; // Flip Y
\r
731 tile=code + (row>>3); // Tile number increases going down
\r
732 delta=height; // Delta to increase tile by going right
\r
733 if (code&0x0800) { tile+=delta*(width-1); delta=-delta; } // Flip X
\r
735 tile &= 0x7ff; tile<<=4; tile+=(row&7)<<1; // Tile address
\r
736 delta<<=4; // Delta of address
\r
738 pal=(code>>9)&0x30;
\r
741 if (sh && (code&0x6000) == 0x6000) {
\r
742 if(code&0x0800) fTileFunc=TileFlipSH_markop;
\r
743 else fTileFunc=TileNormSH_markop;
\r
745 if(code&0x0800) fTileFunc=TileFlip;
\r
746 else fTileFunc=TileNorm;
\r
749 for (; width; width--,sx+=8,tile+=delta)
\r
753 if(sx<=0) continue;
\r
754 if(sx>=328) break; // Offscreen
\r
756 pack = *(unsigned int *)(PicoMem.vram + (tile & 0x7fff));
\r
757 fTileFunc(pd + sx, pack, pal);
\r
762 static NOINLINE void DrawTilesFromCacheForced(const int *hc)
\r
764 unsigned char *pd = Pico.est.HighCol;
\r
765 int code, addr, dx;
\r
769 // *ts->hc++ = code | (dx<<16) | (ty<<25);
\r
770 while ((code = *hc++)) {
\r
771 // Get tile address/2:
\r
772 addr = (code & 0x7ff) << 4;
\r
773 addr += (code >> 25) & 0x0e; // y offset into tile
\r
775 dx = (code >> 16) & 0x1ff;
\r
776 pal = ((code >> 9) & 0x30);
\r
777 pack = *(unsigned int *)(PicoMem.vram + addr);
\r
779 if (code & 0x0800) TileFlip_and(pd + dx, pack, pal);
\r
780 else TileNorm_and(pd + dx, pack, pal);
\r
784 static void DrawSpriteInterlace(unsigned int *sprite)
\r
786 unsigned char *pd = Pico.est.HighCol;
\r
787 int width=0,height=0;
\r
790 int tile=0,delta=0;
\r
793 // parse the sprite data
\r
796 sy=(sy&0x3ff)-0x100; // Y
\r
797 width=(height>>2)&3; height&=3;
\r
798 width++; height++; // Width and height in tiles
\r
800 row=(Pico.est.DrawScanline<<1)-sy; // Row of the sprite we are on
\r
803 sx=((code>>16)&0x1ff)-0x78; // X
\r
805 if (code&0x1000) row^=(16<<height)-1; // Flip Y
\r
807 tile=code&0x3ff; // Tile number
\r
808 tile+=row>>4; // Tile number increases going down
\r
809 delta=height; // Delta to increase tile by going right
\r
810 if (code&0x0800) { tile+=delta*(width-1); delta=-delta; } // Flip X
\r
812 tile<<=5; tile+=(row&15)<<1; // Tile address
\r
814 delta<<=5; // Delta of address
\r
815 pal=((code>>9)&0x30); // Get palette pointer
\r
817 for (; width; width--,sx+=8,tile+=delta)
\r
821 if(sx<=0) continue;
\r
822 if(sx>=328) break; // Offscreen
\r
824 pack = *(unsigned int *)(PicoMem.vram + (tile & 0x7fff));
\r
825 if (code & 0x0800) TileFlip(pd + sx, pack, pal);
\r
826 else TileNorm(pd + sx, pack, pal);
\r
831 static NOINLINE void DrawAllSpritesInterlace(int pri, int sh)
\r
833 struct PicoVideo *pvid=&Pico.video;
\r
834 int i,u,table,link=0,sline=Pico.est.DrawScanline<<1;
\r
835 unsigned int *sprites[80]; // Sprite index
\r
837 table=pvid->reg[5]&0x7f;
\r
838 if (pvid->reg[12]&1) table&=0x7e; // Lowest bit 0 in 40-cell mode
\r
839 table<<=8; // Get sprite table address/2
\r
841 for (i=u=0; u < 80 && i < 21; u++)
\r
843 unsigned int *sprite;
\r
844 int code, sx, sy, height;
\r
846 sprite=(unsigned int *)(PicoMem.vram+((table+(link<<2))&0x7ffc)); // Find sprite
\r
851 if(((sx>>15)&1) != pri) goto nextsprite; // wrong priority sprite
\r
853 // check if it is on this line
\r
854 sy = (code&0x3ff)-0x100;
\r
855 height = (((code>>24)&3)+1)<<4;
\r
856 if(sline < sy || sline >= sy+height) goto nextsprite; // no
\r
858 // check if sprite is not hidden offscreen
\r
859 sx = (sx>>16)&0x1ff;
\r
860 sx -= 0x78; // Get X coordinate + 8
\r
861 if(sx <= -8*3 || sx >= 328) goto nextsprite;
\r
863 // sprite is good, save it's pointer
\r
864 sprites[i++]=sprite;
\r
867 // Find next sprite
\r
868 link=(code>>16)&0x7f;
\r
869 if(!link) break; // End of sprites
\r
872 // Go through sprites backwards:
\r
873 for (i-- ;i>=0; i--)
\r
874 DrawSpriteInterlace(sprites[i]);
\r
878 #ifndef _ASM_DRAW_C
\r
880 * s/h drawing: lo_layers|40, lo_sprites|40 && mark_op,
\r
881 * hi_layers&=~40, hi_sprites
\r
883 * Index + 0 : hhhhvvvv ----hhvv yyyyyyyy yyyyyyyy // v, h: vert./horiz. size
\r
884 * Index + 4 : xxxxxxxx xxxxxxxx pccvhnnn nnnnnnnn // x: x coord + 8
\r
886 static void DrawSpritesSHi(unsigned char *sprited, const struct PicoEState *est)
\r
888 void (*fTileFunc)(unsigned char *pd, unsigned int pack, int pal);
\r
889 unsigned char *pd = Pico.est.HighCol;
\r
893 cnt = sprited[0] & 0x7f;
\r
894 if (cnt == 0) return;
\r
898 // Go through sprites backwards:
\r
899 for (cnt--; cnt >= 0; cnt--)
\r
901 int *sprite, code, pal, tile, sx, sy;
\r
902 int offs, delta, width, height, row;
\r
904 offs = (p[cnt] & 0x7f) * 2;
\r
905 sprite = est->HighPreSpr + offs;
\r
907 pal = (code>>9)&0x30;
\r
911 if (code & 0x8000) // hi priority
\r
913 if (code&0x800) fTileFunc=TileFlipSH;
\r
914 else fTileFunc=TileNormSH;
\r
916 if (code&0x800) fTileFunc=TileFlipSH_onlyop_lp;
\r
917 else fTileFunc=TileNormSH_onlyop_lp;
\r
920 if (!(code & 0x8000)) continue; // non-operator low sprite, already drawn
\r
921 if (code&0x800) fTileFunc=TileFlip;
\r
922 else fTileFunc=TileNorm;
\r
925 // parse remaining sprite data
\r
929 height=(sy>>24)&7; // Width and height in tiles
\r
930 sy=(sy<<16)>>16; // Y
\r
932 row=est->DrawScanline-sy; // Row of the sprite we are on
\r
934 if (code&0x1000) row=(height<<3)-1-row; // Flip Y
\r
936 tile=code + (row>>3); // Tile number increases going down
\r
937 delta=height; // Delta to increase tile by going right
\r
938 if (code&0x0800) { tile+=delta*(width-1); delta=-delta; } // Flip X
\r
940 tile &= 0x7ff; tile<<=4; tile+=(row&7)<<1; // Tile address
\r
941 delta<<=4; // Delta of address
\r
943 for (; width; width--,sx+=8,tile+=delta)
\r
947 if(sx<=0) continue;
\r
948 if(sx>=328) break; // Offscreen
\r
950 pack = *(unsigned int *)(PicoMem.vram + (tile & 0x7fff));
\r
951 fTileFunc(pd + sx, pack, pal);
\r
955 #endif // !_ASM_DRAW_C
\r
957 static void DrawSpritesHiAS(unsigned char *sprited, int sh)
\r
959 void (*fTileFunc)(unsigned char *pd, unsigned char *mb,
\r
960 unsigned int pack, int pal);
\r
961 unsigned char *pd = Pico.est.HighCol;
\r
962 unsigned char mb[8+320+8];
\r
966 cnt = sprited[0] & 0x7f;
\r
967 if (cnt == 0) return;
\r
969 memset(mb, 0xff, sizeof(mb));
\r
972 // Go through sprites:
\r
973 for (entry = 0; entry < cnt; entry++)
\r
975 int *sprite, code, pal, tile, sx, sy;
\r
976 int offs, delta, width, height, row;
\r
978 offs = (p[entry] & 0x7f) * 2;
\r
979 sprite = HighPreSpr + offs;
\r
981 pal = (code>>9)&0x30;
\r
983 if (sh && pal == 0x30)
\r
985 if (code & 0x8000) // hi priority
\r
987 if (code&0x800) fTileFunc = TileFlipSH_AS;
\r
988 else fTileFunc = TileNormSH_AS;
\r
990 if (code&0x800) fTileFunc = TileFlipSH_AS_onlyop_lp;
\r
991 else fTileFunc = TileNormSH_AS_onlyop_lp;
\r
994 if (code & 0x8000) // hi priority
\r
996 if (code&0x800) fTileFunc = TileFlipAS;
\r
997 else fTileFunc = TileNormAS;
\r
999 if (code&0x800) fTileFunc = TileFlipAS_onlymark;
\r
1000 else fTileFunc = TileNormAS_onlymark;
\r
1004 // parse remaining sprite data
\r
1008 height=(sy>>24)&7; // Width and height in tiles
\r
1009 sy=(sy<<16)>>16; // Y
\r
1011 row=Pico.est.DrawScanline-sy; // Row of the sprite we are on
\r
1013 if (code&0x1000) row=(height<<3)-1-row; // Flip Y
\r
1015 tile=code + (row>>3); // Tile number increases going down
\r
1016 delta=height; // Delta to increase tile by going right
\r
1017 if (code&0x0800) { tile+=delta*(width-1); delta=-delta; } // Flip X
\r
1019 tile &= 0x7ff; tile<<=4; tile+=(row&7)<<1; // Tile address
\r
1020 delta<<=4; // Delta of address
\r
1022 for (; width; width--,sx+=8,tile+=delta)
\r
1024 unsigned int pack;
\r
1026 if(sx<=0) continue;
\r
1027 if(sx>=328) break; // Offscreen
\r
1029 pack = *(unsigned int *)(PicoMem.vram + (tile & 0x7fff));
\r
1030 fTileFunc(pd + sx, mb + sx, pack, pal);
\r
1036 // Index + 0 : ----hhvv -lllllll -------y yyyyyyyy
\r
1037 // Index + 4 : -------x xxxxxxxx pccvhnnn nnnnnnnn
\r
1039 // Index + 0 : hhhhvvvv ----hhvv yyyyyyyy yyyyyyyy // v, h: vert./horiz. size
\r
1040 // Index + 4 : xxxxxxxx xxxxxxxx pccvhnnn nnnnnnnn // x: x coord + 8
\r
1042 static NOINLINE void PrepareSprites(int full)
\r
1044 const struct PicoVideo *pvid=&Pico.video;
\r
1045 const struct PicoEState *est=&Pico.est;
\r
1048 int *pd = HighPreSpr;
\r
1049 int max_lines = 224, max_sprites = 80, max_width = 328;
\r
1050 int max_line_sprites = 20; // 20 sprites, 40 tiles
\r
1052 if (!(Pico.video.reg[12]&1))
\r
1053 max_sprites = 64, max_line_sprites = 16, max_width = 264;
\r
1054 if (PicoIn.opt & POPT_DIS_SPRITE_LIM)
\r
1055 max_line_sprites = MAX_LINE_SPRITES;
\r
1057 if (pvid->reg[1]&8) max_lines = 240;
\r
1058 sh = Pico.video.reg[0xC]&8; // shadow/hilight?
\r
1060 table=pvid->reg[5]&0x7f;
\r
1061 if (pvid->reg[12]&1) table&=0x7e; // Lowest bit 0 in 40-cell mode
\r
1062 table<<=8; // Get sprite table address/2
\r
1067 // updates: tilecode, sx
\r
1068 for (u=0; u < max_sprites && (pack = *pd); u++, pd+=2)
\r
1070 unsigned int *sprite;
\r
1071 int code2, sx, sy, height;
\r
1073 sprite=(unsigned int *)(PicoMem.vram+((table+(link<<2))&0x7ffc)); // Find sprite
\r
1075 // parse sprite info
\r
1076 code2 = sprite[1];
\r
1077 sx = (code2>>16)&0x1ff;
\r
1078 sx -= 0x78; // Get X coordinate + 8
\r
1079 sy = (pack << 16) >> 16;
\r
1080 height = (pack >> 24) & 0xf;
\r
1082 if (sy < max_lines &&
\r
1083 sy + (height<<3) > est->DrawScanline && // sprite onscreen (y)?
\r
1084 (sx > -24 || sx < max_width)) // onscreen x
\r
1086 int y = (sy >= est->DrawScanline) ? sy : est->DrawScanline;
\r
1087 int entry = ((pd - HighPreSpr) / 2) | ((code2>>8)&0x80);
\r
1088 for (; y < sy + (height<<3) && y < max_lines; y++)
\r
1091 cnt = HighLnSpr[y][0] & 0x7f;
\r
1092 if (cnt >= max_line_sprites) continue; // sprite limit?
\r
1094 for (i = 0; i < cnt; i++)
\r
1095 if (((HighLnSpr[y][3+i] ^ entry) & 0x7f) == 0) goto found;
\r
1097 // this sprite was previously missing
\r
1098 HighLnSpr[y][3+cnt] = entry;
\r
1099 HighLnSpr[y][0] = cnt + 1;
\r
1102 HighLnSpr[y][1] |= SPRL_HAVE_HI;
\r
1103 else HighLnSpr[y][1] |= SPRL_HAVE_LO;
\r
1107 code2 &= ~0xfe000000;
\r
1108 code2 -= 0x00780000; // Get X coordinate + 8 in upper 16 bits
\r
1111 // Find next sprite
\r
1112 link=(sprite[0]>>16)&0x7f;
\r
1113 if (!link) break; // End of sprites
\r
1118 for (u = 0; u < max_lines; u++)
\r
1119 *((int *)&HighLnSpr[u][0]) = 0;
\r
1121 for (u = 0; u < max_sprites; u++)
\r
1123 unsigned int *sprite;
\r
1124 int code, code2, sx, sy, hv, height, width;
\r
1126 sprite=(unsigned int *)(PicoMem.vram+((table+(link<<2))&0x7ffc)); // Find sprite
\r
1128 // parse sprite info
\r
1130 sy = (code&0x1ff)-0x80;
\r
1131 hv = (code>>24)&0xf;
\r
1132 height = (hv&3)+1;
\r
1134 width = (hv>>2)+1;
\r
1135 code2 = sprite[1];
\r
1136 sx = (code2>>16)&0x1ff;
\r
1137 sx -= 0x78; // Get X coordinate + 8
\r
1139 if (sy < max_lines && sy + (height<<3) > est->DrawScanline) // sprite onscreen (y)?
\r
1141 int entry, y, sx_min, onscr_x, maybe_op = 0;
\r
1143 sx_min = 8-(width<<3);
\r
1144 onscr_x = sx_min < sx && sx < max_width;
\r
1145 if (sh && (code2 & 0x6000) == 0x6000)
\r
1146 maybe_op = SPRL_MAY_HAVE_OP;
\r
1148 entry = ((pd - HighPreSpr) / 2) | ((code2>>8)&0x80);
\r
1149 y = (sy >= est->DrawScanline) ? sy : est->DrawScanline;
\r
1150 for (; y < sy + (height<<3) && y < max_lines; y++)
\r
1152 unsigned char *p = &HighLnSpr[y][0];
\r
1154 if (cnt >= max_line_sprites) continue; // sprite limit?
\r
1156 if (p[2] >= max_line_sprites*2) { // tile limit?
\r
1162 if (sx == -0x78) {
\r
1164 p[0] |= 0x80; // masked, no more sprites for this line
\r
1167 // must keep the first sprite even if it's offscreen, for masking
\r
1168 if (cnt > 0 && !onscr_x) continue; // offscreen x
\r
1172 p[1] |= (entry & 0x80) ? SPRL_HAVE_HI : SPRL_HAVE_LO;
\r
1173 p[1] |= maybe_op; // there might be op sprites on this line
\r
1174 if (cnt > 0 && (code2 & 0x8000) && !(p[3+cnt-1]&0x80))
\r
1175 p[1] |= SPRL_LO_ABOVE_HI;
\r
1179 *pd++ = (width<<28)|(height<<24)|(hv<<16)|((unsigned short)sy);
\r
1180 *pd++ = (sx<<16)|((unsigned short)code2);
\r
1182 // Find next sprite
\r
1183 link=(code>>16)&0x7f;
\r
1184 if (!link) break; // End of sprites
\r
1189 for (u = 0; u < max_lines; u++)
\r
1192 printf("c%03i: %2i, %2i: ", u, HighLnSpr[u][0] & 0x7f, HighLnSpr[u][2]);
\r
1193 for (y = 0; y < HighLnSpr[u][0] & 0x7f; y++)
\r
1194 printf(" %i", HighLnSpr[u][y+3]);
\r
1201 #ifndef _ASM_DRAW_C
\r
1202 static void DrawAllSprites(unsigned char *sprited, int prio, int sh,
\r
1203 struct PicoEState *est)
\r
1208 cnt = sprited[0] & 0x7f;
\r
1209 if (cnt == 0) return;
\r
1213 // Go through sprites backwards:
\r
1214 for (cnt--; cnt >= 0; cnt--)
\r
1217 if ((p[cnt] >> 7) != prio) continue;
\r
1218 offs = (p[cnt]&0x7f) * 2;
\r
1219 DrawSprite(HighPreSpr + offs, sh);
\r
1224 // --------------------------------------------
\r
1226 void BackFill(int reg7, int sh, struct PicoEState *est)
\r
1228 unsigned int back;
\r
1230 // Start with a blank scanline (background colour):
\r
1236 memset32((int *)(est->HighCol+8), back, 320/4);
\r
1240 // --------------------------------------------
\r
1242 #ifndef _ASM_DRAW_C
\r
1243 void PicoDoHighPal555(int sh, int line, struct PicoEState *est)
\r
1245 unsigned int *spal, *dpal;
\r
1246 unsigned int t, i;
\r
1248 Pico.m.dirtyPal = 0;
\r
1250 spal = (void *)PicoMem.cram;
\r
1251 dpal = (void *)est->HighPal;
\r
1253 for (i = 0; i < 0x40 / 2; i++) {
\r
1256 t = ((t & 0x000e000e)<< 1) | ((t & 0x00e000e0)<<3) | ((t & 0x0e000e00)<<4);
\r
1258 t = ((t & 0x000e000e)<<12) | ((t & 0x00e000e0)<<3) | ((t & 0x0e000e00)>>7);
\r
1260 // treat it like it was 4-bit per channel, since in s/h mode it somewhat is that.
\r
1261 // otherwise intensity difference between this and s/h will be wrong
\r
1262 t |= (t >> 4) & 0x08610861; // 0x18e318e3
\r
1266 // norm: xxx0, sh: 0xxx, hi: 0xxx + 7
\r
1269 // shadowed pixels
\r
1270 for (i = 0; i < 0x40 / 2; i++)
\r
1271 dpal[0x40/2 | i] = dpal[0xc0/2 | i] = (dpal[i] >> 1) & 0x738e738e;
\r
1272 // hilighted pixels
\r
1273 for (i = 0; i < 0x40 / 2; i++) {
\r
1274 t = ((dpal[i] >> 1) & 0x738e738e) + 0x738e738e; // 0x7bef7bef;
\r
1275 t |= (t >> 4) & 0x08610861;
\r
1276 dpal[0x80/2 | i] = t;
\r
1281 void FinalizeLine555(int sh, int line, struct PicoEState *est)
\r
1283 unsigned short *pd=est->DrawLineDest;
\r
1284 unsigned char *ps=est->HighCol+8;
\r
1285 unsigned short *pal=est->HighPal;
\r
1288 if (Pico.m.dirtyPal)
\r
1289 PicoDoHighPal555(sh, line, est);
\r
1291 if (Pico.video.reg[12]&1) {
\r
1294 if (!(PicoIn.opt&POPT_DIS_32C_BORDER)) pd+=32;
\r
1302 for (i = 0; i < len; i++)
\r
1303 pd[i] = pal[ps[i]];
\r
1305 extern void amips_clut(unsigned short *dst, unsigned char *src, unsigned short *pal, int count);
\r
1306 extern void amips_clut_6bit(unsigned short *dst, unsigned char *src, unsigned short *pal, int count);
\r
1308 amips_clut_6bit(pd, ps, pal, len);
\r
1309 else amips_clut(pd, ps, pal, len);
\r
1315 static void FinalizeLine8bit(int sh, int line, struct PicoEState *est)
\r
1317 unsigned char *pd = est->DrawLineDest;
\r
1318 int len, rs = est->rendstatus;
\r
1319 static int dirty_count;
\r
1321 if (!sh && Pico.m.dirtyPal == 1)
\r
1323 // a hack for mid-frame palette changes
\r
1324 if (!(rs & PDRAW_SONIC_MODE))
\r
1326 else dirty_count++;
\r
1327 rs |= PDRAW_SONIC_MODE;
\r
1328 est->rendstatus = rs;
\r
1329 if (dirty_count == 3) {
\r
1330 blockcpy(est->HighPal, PicoMem.cram, 0x40*2);
\r
1331 } else if (dirty_count == 11) {
\r
1332 blockcpy(est->HighPal+0x40, PicoMem.cram, 0x40*2);
\r
1336 if (Pico.video.reg[12]&1) {
\r
1339 if (!(PicoIn.opt & POPT_DIS_32C_BORDER))
\r
1344 if (!sh && (rs & PDRAW_SONIC_MODE)) {
\r
1345 if (dirty_count >= 11) {
\r
1346 blockcpy_or(pd, est->HighCol+8, len, 0x80);
\r
1348 blockcpy_or(pd, est->HighCol+8, len, 0x40);
\r
1351 blockcpy(pd, est->HighCol+8, len);
\r
1355 static void (*FinalizeLine)(int sh, int line, struct PicoEState *est);
\r
1357 // --------------------------------------------
\r
1359 static int DrawDisplay(int sh)
\r
1361 struct PicoEState *est=&Pico.est;
\r
1362 unsigned char *sprited = &HighLnSpr[est->DrawScanline][0];
\r
1363 struct PicoVideo *pvid=&Pico.video;
\r
1364 int win=0, edge=0, hvwind=0, lflags;
\r
1365 int maxw, maxcells;
\r
1367 if (est->rendstatus & (PDRAW_SPRITES_MOVED|PDRAW_DIRTY_SPRITES)) {
\r
1368 // elprintf(EL_STATUS, "PrepareSprites(%i)", (est->rendstatus>>4)&1);
\r
1369 PrepareSprites(est->rendstatus & PDRAW_DIRTY_SPRITES);
\r
1370 est->rendstatus &= ~(PDRAW_SPRITES_MOVED|PDRAW_DIRTY_SPRITES);
\r
1373 est->rendstatus &= ~(PDRAW_SHHI_DONE|PDRAW_PLANE_HI_PRIO);
\r
1375 if (pvid->reg[12]&1) {
\r
1376 maxw = 328; maxcells = 40;
\r
1378 maxw = 264; maxcells = 32;
\r
1381 // Find out if the window is on this line:
\r
1382 win=pvid->reg[0x12];
\r
1383 edge=(win&0x1f)<<3;
\r
1385 if (win&0x80) { if (est->DrawScanline>=edge) hvwind=1; }
\r
1386 else { if (est->DrawScanline< edge) hvwind=1; }
\r
1388 if (!hvwind) // we might have a vertical window here
\r
1390 win=pvid->reg[0x11];
\r
1393 if (!edge) hvwind=1;
\r
1394 else if(edge < (maxcells>>1)) hvwind=2;
\r
1397 else if(edge < (maxcells>>1)) hvwind=2;
\r
1402 /* - layer B low - */
\r
1403 if (!(pvid->debug_p & PVD_KILL_B)) {
\r
1404 lflags = LF_PLANE_1 | (sh << 1);
\r
1405 if (pvid->debug_p & PVD_FORCE_B)
\r
1406 lflags |= LF_FORCE;
\r
1407 DrawLayer(lflags, HighCacheB, 0, maxcells, est);
\r
1409 /* - layer A low - */
\r
1410 lflags = 0 | (sh << 1);
\r
1411 if (pvid->debug_p & PVD_FORCE_A)
\r
1412 lflags |= LF_FORCE;
\r
1413 if (pvid->debug_p & PVD_KILL_A)
\r
1415 else if (hvwind == 1)
\r
1416 DrawWindow(0, maxcells>>1, 0, sh, est);
\r
1417 else if (hvwind == 2) {
\r
1418 DrawLayer(lflags, HighCacheA, (win&0x80) ? 0 : edge<<1, (win&0x80) ? edge<<1 : maxcells, est);
\r
1419 DrawWindow( (win&0x80) ? edge : 0, (win&0x80) ? maxcells>>1 : edge, 0, sh, est);
\r
1422 DrawLayer(lflags, HighCacheA, 0, maxcells, est);
\r
1423 /* - sprites low - */
\r
1424 if (pvid->debug_p & PVD_KILL_S_LO)
\r
1426 else if (est->rendstatus & PDRAW_INTERLACE)
\r
1427 DrawAllSpritesInterlace(0, sh);
\r
1428 else if (sprited[1] & SPRL_HAVE_LO)
\r
1429 DrawAllSprites(sprited, 0, sh, est);
\r
1431 /* - layer B hi - */
\r
1432 if (!(pvid->debug_p & PVD_KILL_B) && HighCacheB[0])
\r
1433 DrawTilesFromCache(HighCacheB, sh, maxw, est);
\r
1434 /* - layer A hi - */
\r
1435 if (pvid->debug_p & PVD_KILL_A)
\r
1437 else if (hvwind == 1)
\r
1438 DrawWindow(0, maxcells>>1, 1, sh, est);
\r
1439 else if (hvwind == 2) {
\r
1440 if (HighCacheA[0])
\r
1441 DrawTilesFromCache(HighCacheA, sh, (win&0x80) ? edge<<4 : maxw, est);
\r
1442 DrawWindow((win&0x80) ? edge : 0, (win&0x80) ? maxcells>>1 : edge, 1, sh, est);
\r
1444 if (HighCacheA[0])
\r
1445 DrawTilesFromCache(HighCacheA, sh, maxw, est);
\r
1446 /* - sprites hi - */
\r
1447 if (pvid->debug_p & PVD_KILL_S_HI)
\r
1449 else if (est->rendstatus & PDRAW_INTERLACE)
\r
1450 DrawAllSpritesInterlace(1, sh);
\r
1451 // have sprites without layer pri bit ontop of sprites with that bit
\r
1452 else if ((sprited[1] & 0xd0) == 0xd0 && (PicoIn.opt & POPT_ACC_SPRITES))
\r
1453 DrawSpritesHiAS(sprited, sh);
\r
1454 else if (sh && (sprited[1] & SPRL_MAY_HAVE_OP))
\r
1455 DrawSpritesSHi(sprited, est);
\r
1456 else if (sprited[1] & SPRL_HAVE_HI)
\r
1457 DrawAllSprites(sprited, 1, 0, est);
\r
1459 if (pvid->debug_p & PVD_FORCE_B)
\r
1460 DrawTilesFromCacheForced(HighCacheB);
\r
1461 else if (pvid->debug_p & PVD_FORCE_A)
\r
1462 DrawTilesFromCacheForced(HighCacheA);
\r
1467 for (a = 0, c = HighCacheA; *c; c++, a++);
\r
1468 for (b = 0, c = HighCacheB; *c; c++, b++);
\r
1469 printf("%i:%03i: a=%i, b=%i\n", Pico.m.frame_count,
\r
1470 Pico.est.DrawScanline, a, b);
\r
1477 // MUST be called every frame
\r
1478 PICO_INTERNAL void PicoFrameStart(void)
\r
1480 int offs = 8, lines = 224;
\r
1482 // prepare to do this frame
\r
1483 Pico.est.rendstatus = 0;
\r
1484 if ((Pico.video.reg[12] & 6) == 6)
\r
1485 Pico.est.rendstatus |= PDRAW_INTERLACE; // interlace mode
\r
1486 if (!(Pico.video.reg[12] & 1))
\r
1487 Pico.est.rendstatus |= PDRAW_32_COLS;
\r
1488 if (Pico.video.reg[1] & 8) {
\r
1493 if (Pico.est.rendstatus != rendstatus_old || lines != rendlines) {
\r
1494 rendlines = lines;
\r
1495 // mode_change() might reset rendstatus_old by calling SetColorFormat
\r
1496 emu_video_mode_change((lines == 240) ? 0 : 8,
\r
1497 lines, (Pico.video.reg[12] & 1) ? 0 : 1);
\r
1498 rendstatus_old = Pico.est.rendstatus;
\r
1501 Pico.est.HighCol = HighColBase + offs * HighColIncrement;
\r
1502 Pico.est.DrawLineDest = (char *)DrawLineDestBase + offs * DrawLineDestIncrement;
\r
1503 Pico.est.DrawScanline = 0;
\r
1504 skip_next_line = 0;
\r
1506 if (PicoIn.opt & POPT_ALT_RENDERER)
\r
1509 if (Pico.m.dirtyPal)
\r
1510 Pico.m.dirtyPal = 2; // reset dirty if needed
\r
1511 PrepareSprites(1);
\r
1514 static void DrawBlankedLine(int line, int offs, int sh, int bgc)
\r
1516 if (PicoScanBegin != NULL)
\r
1517 PicoScanBegin(line + offs);
\r
1519 BackFill(bgc, sh, &Pico.est);
\r
1521 if (FinalizeLine != NULL)
\r
1522 FinalizeLine(sh, line, &Pico.est);
\r
1524 if (PicoScanEnd != NULL)
\r
1525 PicoScanEnd(line + offs);
\r
1527 Pico.est.HighCol += HighColIncrement;
\r
1528 Pico.est.DrawLineDest = (char *)Pico.est.DrawLineDest + DrawLineDestIncrement;
\r
1531 static void PicoLine(int line, int offs, int sh, int bgc)
\r
1535 if (skip_next_line > 0) {
\r
1540 Pico.est.DrawScanline = line;
\r
1541 if (PicoScanBegin != NULL)
\r
1542 skip = PicoScanBegin(line + offs);
\r
1545 skip_next_line = skip - 1;
\r
1549 if (Pico.video.debug_p & (PVD_FORCE_A | PVD_FORCE_B))
\r
1553 BackFill(bgc, sh, &Pico.est);
\r
1554 if (Pico.video.reg[1]&0x40)
\r
1557 if (FinalizeLine != NULL)
\r
1558 FinalizeLine(sh, line, &Pico.est);
\r
1560 if (PicoScanEnd != NULL)
\r
1561 skip_next_line = PicoScanEnd(line + offs);
\r
1563 Pico.est.HighCol += HighColIncrement;
\r
1564 Pico.est.DrawLineDest = (char *)Pico.est.DrawLineDest + DrawLineDestIncrement;
\r
1567 void PicoDrawSync(int to, int blank_last_line)
\r
1569 int line, offs = 0;
\r
1570 int sh = (Pico.video.reg[0xC] & 8) >> 3; // shadow/hilight?
\r
1571 int bgc = Pico.video.reg[7];
\r
1573 pprof_start(draw);
\r
1575 if (rendlines != 240) {
\r
1581 for (line = Pico.est.DrawScanline; line < to; line++)
\r
1582 PicoLine(line, offs, sh, bgc);
\r
1587 if (blank_last_line)
\r
1588 DrawBlankedLine(line, offs, sh, bgc);
\r
1589 else PicoLine(line, offs, sh, bgc);
\r
1592 Pico.est.DrawScanline = line;
\r
1597 // also works for fast renderer
\r
1598 void PicoDrawUpdateHighPal(void)
\r
1600 struct PicoEState *est = &Pico.est;
\r
1601 int sh = (Pico.video.reg[0xC] & 8) >> 3; // shadow/hilight?
\r
1602 if (PicoIn.opt & POPT_ALT_RENDERER)
\r
1603 sh = 0; // no s/h support
\r
1605 PicoDoHighPal555(sh, 0, &Pico.est);
\r
1606 if (est->rendstatus & PDRAW_SONIC_MODE) {
\r
1608 memcpy(est->HighPal + 0x40, est->HighPal, 0x40*2);
\r
1609 memcpy(est->HighPal + 0x80, est->HighPal, 0x40*2);
\r
1613 void PicoDrawSetOutFormat(pdso_t which, int use_32x_line_mode)
\r
1618 FinalizeLine = FinalizeLine8bit;
\r
1622 if ((PicoIn.AHW & PAHW_32X) && use_32x_line_mode)
\r
1623 FinalizeLine = FinalizeLine32xRGB555;
\r
1625 FinalizeLine = FinalizeLine555;
\r
1629 FinalizeLine = NULL;
\r
1632 PicoDrawSetOutFormat32x(which, use_32x_line_mode);
\r
1633 PicoDrawSetOutputMode4(which);
\r
1634 rendstatus_old = -1;
\r
1637 // note: may be called on the middle of frame
\r
1638 void PicoDrawSetOutBuf(void *dest, int increment)
\r
1640 DrawLineDestBase = dest;
\r
1641 DrawLineDestIncrement = increment;
\r
1642 Pico.est.DrawLineDest = (char *)DrawLineDestBase + Pico.est.DrawScanline * increment;
\r
1645 void PicoDrawSetInternalBuf(void *dest, int increment)
\r
1647 if (dest != NULL) {
\r
1648 HighColBase = dest;
\r
1649 HighColIncrement = increment;
\r
1650 Pico.est.HighCol = HighColBase + Pico.est.DrawScanline * increment;
\r
1653 HighColBase = DefHighCol;
\r
1654 HighColIncrement = 0;
\r
1658 void PicoDrawSetCallbacks(int (*begin)(unsigned int num), int (*end)(unsigned int num))
\r
1660 PicoScanBegin = NULL;
\r
1661 PicoScanEnd = NULL;
\r
1662 PicoScan32xBegin = NULL;
\r
1663 PicoScan32xEnd = NULL;
\r
1665 if ((PicoIn.AHW & PAHW_32X) && FinalizeLine != FinalizeLine32xRGB555) {
\r
1666 PicoScan32xBegin = begin;
\r
1667 PicoScan32xEnd = end;
\r
1670 PicoScanBegin = begin;
\r
1671 PicoScanEnd = end;
\r
1675 void PicoDrawInit(void)
\r
1677 Pico.est.DrawLineDest = DefOutBuff;
\r
1678 Pico.est.HighCol = HighColBase;
\r
1679 Pico.est.HighPreSpr = HighPreSpr;
\r
1680 rendstatus_old = -1;
\r
1683 // vim:ts=2:sw=2:expandtab
\r