+++ /dev/null
-// This is part of Pico Library\r
-\r
-// (c) Copyright 2004 Dave, All rights reserved.\r
-// (c) Copyright 2006-2008 notaz, All rights reserved.\r
-// Free for non-commercial use.\r
-\r
-// For commercial use, separate licencing terms must be obtained.\r
-\r
-/*\r
- * The renderer has 4 modes now:\r
- * - normal\r
- * - shadow/hilight (s/h)\r
- * - "sonic mode" for midline palette changes\r
- * - accurate sprites (AS)\r
- *\r
- * AS and s/h both use upper bits for both priority and shadow/hilight flags.\r
- * "sonic mode" is autodetected, shadow/hilight is enabled by emulated game.\r
- * AS is enabled by user and takes priority over "sonic mode".\r
- */\r
-\r
-#include "pico_int.h"\r
-\r
-int (*PicoScanBegin)(unsigned int num) = NULL;\r
-int (*PicoScanEnd) (unsigned int num) = NULL;\r
-\r
-#if OVERRIDE_HIGHCOL\r
-static unsigned char DefHighCol[8+320+8];\r
-unsigned char *HighCol=DefHighCol;\r
-#else\r
-unsigned char HighCol[8+320+8];\r
-#endif\r
-unsigned short DefOutBuff[320*2];\r
-void *DrawLineDest=DefOutBuff; // pointer to dest buffer where to draw this line to\r
-\r
-static int HighCacheA[41+1]; // caches for high layers\r
-static int HighCacheB[41+1];\r
-int HighPreSpr[80*2+1]; // slightly preprocessed sprites\r
-\r
-#define SPRL_HAVE_HI 0x80 // have hi priority sprites\r
-#define SPRL_HAVE_LO 0x40 // *lo*\r
-#define SPRL_MAY_HAVE_OP 0x20 // may have operator sprites on the line\r
-#define SPRL_LO_ABOVE_HI 0x10 // low priority sprites may be on top of hi\r
-unsigned char HighLnSpr[240][3 + MAX_LINE_SPRITES]; // sprite_count, ^flags, tile_count, [spritep]...\r
-\r
-int rendstatus = 0;\r
-int DrawScanline = 0;\r
-int PicoDrawMask = -1;\r
-\r
-static int skip_next_line=0;\r
-\r
-//unsigned short ppt[] = { 0x0f11, 0x0ff1, 0x01f1, 0x011f, 0x01ff, 0x0f1f, 0x0f0e, 0x0e7c };\r
-\r
-struct TileStrip\r
-{\r
- int nametab; // Position in VRAM of name table (for this tile line)\r
- int line; // Line number in pixels 0x000-0x3ff within the virtual tilemap\r
- int hscroll; // Horizontal scroll value in pixels for the line\r
- int xmask; // X-Mask (0x1f - 0x7f) for horizontal wraparound in the tilemap\r
- int *hc; // cache for high tile codes and their positions\r
- int cells; // cells (tiles) to draw (32 col mode doesn't need to update whole 320)\r
-};\r
-\r
-// stuff available in asm:\r
-#ifdef _ASM_DRAW_C\r
-void DrawWindow(int tstart, int tend, int prio, int sh);\r
-void BackFill(int reg7, int sh);\r
-void DrawAllSprites(unsigned char *sprited, int prio, int sh);\r
-void DrawTilesFromCache(int *hc, int sh, int rlim);\r
-void DrawSpritesSHi(unsigned char *sprited);\r
-void DrawLayer(int plane_sh, int *hcache, int cellskip, int maxcells);\r
-void FinalizeLineBGR444(int sh);\r
-void FinalizeLineRGB555(int sh);\r
-void *blockcpy(void *dst, const void *src, size_t n);\r
-void blockcpy_or(void *dst, void *src, size_t n, int pat);\r
-#else\r
-// utility\r
-void blockcpy_or(void *dst, void *src, size_t n, int pat)\r
-{\r
- unsigned char *pd = dst, *ps = src;\r
- for (; n; n--)\r
- *pd++ = (unsigned char) (*ps++ | pat);\r
-}\r
-#define blockcpy memcpy\r
-#endif\r
-\r
-\r
-#define TileNormMaker(funcname,pix_func) \\r
-static int funcname(int sx,int addr,int pal) \\r
-{ \\r
- unsigned char *pd = HighCol+sx; \\r
- unsigned int pack=0; unsigned int t=0; \\r
- \\r
- pack=*(unsigned int *)(Pico.vram+addr); /* Get 8 pixels */ \\r
- if (pack) \\r
- { \\r
- t=(pack&0x0000f000)>>12; pix_func(0); \\r
- t=(pack&0x00000f00)>> 8; pix_func(1); \\r
- t=(pack&0x000000f0)>> 4; pix_func(2); \\r
- t=(pack&0x0000000f) ; pix_func(3); \\r
- t=(pack&0xf0000000)>>28; pix_func(4); \\r
- t=(pack&0x0f000000)>>24; pix_func(5); \\r
- t=(pack&0x00f00000)>>20; pix_func(6); \\r
- t=(pack&0x000f0000)>>16; pix_func(7); \\r
- return 0; \\r
- } \\r
- \\r
- return 1; /* Tile blank */ \\r
-}\r
-\r
-\r
-#define TileFlipMaker(funcname,pix_func) \\r
-static int funcname(int sx,int addr,int pal) \\r
-{ \\r
- unsigned char *pd = HighCol+sx; \\r
- unsigned int pack=0; unsigned int t=0; \\r
- \\r
- pack=*(unsigned int *)(Pico.vram+addr); /* Get 8 pixels */ \\r
- if (pack) \\r
- { \\r
- t=(pack&0x000f0000)>>16; pix_func(0); \\r
- t=(pack&0x00f00000)>>20; pix_func(1); \\r
- t=(pack&0x0f000000)>>24; pix_func(2); \\r
- t=(pack&0xf0000000)>>28; pix_func(3); \\r
- t=(pack&0x0000000f) ; pix_func(4); \\r
- t=(pack&0x000000f0)>> 4; pix_func(5); \\r
- t=(pack&0x00000f00)>> 8; pix_func(6); \\r
- t=(pack&0x0000f000)>>12; pix_func(7); \\r
- return 0; \\r
- } \\r
- \\r
- return 1; /* Tile blank */ \\r
-}\r
-\r
-\r
-#ifdef _ASM_DRAW_C_AMIPS\r
-int TileNorm(int sx,int addr,int pal);\r
-int TileFlip(int sx,int addr,int pal);\r
-#else\r
-\r
-#define pix_just_write(x) \\r
- if (t) pd[x]=pal|t\r
-\r
-TileNormMaker(TileNorm,pix_just_write)\r
-TileFlipMaker(TileFlip,pix_just_write)\r
-\r
-#endif\r
-\r
-#ifndef _ASM_DRAW_C\r
-\r
-// draw a sprite pixel, process operator colors\r
-#define pix_sh(x) \\r
- if (!t); \\r
- else if (t==0xe) pd[x]=(pd[x]&0x3f)|0x80; /* hilight */ \\r
- else if (t==0xf) pd[x]= pd[x] |0xc0; /* shadow */ \\r
- else pd[x]=pal|t\r
-\r
-TileNormMaker(TileNormSH, pix_sh)\r
-TileFlipMaker(TileFlipSH, pix_sh)\r
-\r
-// draw a sprite pixel ignoring operator colors\r
-#define pix_sh_noop(x) \\r
- if (t && t < 0xe) \\r
- pd[x]=pal|t\r
-\r
-TileNormMaker(TileNormSH_noop, pix_sh_noop)\r
-TileFlipMaker(TileFlipSH_noop, pix_sh_noop)\r
-\r
-// process operator pixels only, apply only on low pri tiles\r
-#define pix_sh_onlyop(x) \\r
- if (t==0xe && (pd[x]&0x40)) pd[x]=(pd[x]&0x3f)|0x80; /* hilight */ \\r
- else if (t==0xf && (pd[x]&0x40)) pd[x]= pd[x] |0xc0; /* shadow */\r
-\r
-TileNormMaker(TileNormSH_onlyop_lp, pix_sh_onlyop)\r
-TileFlipMaker(TileFlipSH_onlyop_lp, pix_sh_onlyop)\r
-\r
-#endif\r
-\r
-// draw a sprite pixel (AS)\r
-#define pix_as(x) \\r
- if (t && !(pd[x]&0x80)) pd[x]=pal|t\r
-\r
-TileNormMaker(TileNormAS, pix_as)\r
-TileFlipMaker(TileFlipAS, pix_as)\r
-\r
-// draw a sprite pixel, skip operator colors (AS)\r
-#define pix_sh_as_noop(x) \\r
- if (t && t < 0xe && !(pd[x]&0x80)) pd[x]=pal|t\r
-\r
-TileNormMaker(TileNormAS_noop, pix_sh_as_noop)\r
-TileFlipMaker(TileFlipAS_noop, pix_sh_as_noop)\r
-\r
-// mark pixel as sprite pixel (AS)\r
-#define pix_sh_as_onlymark(x) \\r
- if (t) pd[x]|=0x80\r
-\r
-TileNormMaker(TileNormAS_onlymark, pix_sh_as_onlymark)\r
-TileFlipMaker(TileFlipAS_onlymark, pix_sh_as_onlymark)\r
-\r
-\r
-// --------------------------------------------\r
-\r
-#ifndef _ASM_DRAW_C\r
-static void DrawStrip(struct TileStrip *ts, int plane_sh, int cellskip)\r
-{\r
- int tilex,dx,ty,code=0,addr=0,cells;\r
- int oldcode=-1,blank=-1; // The tile we know is blank\r
- int pal=0,sh;\r
-\r
- // Draw tiles across screen:\r
- sh=(plane_sh<<5)&0x40;\r
- tilex=((-ts->hscroll)>>3)+cellskip;\r
- ty=(ts->line&7)<<1; // Y-Offset into tile\r
- dx=((ts->hscroll-1)&7)+1;\r
- cells = ts->cells - cellskip;\r
- if(dx != 8) cells++; // have hscroll, need to draw 1 cell more\r
- dx+=cellskip<<3;\r
-\r
- for (; cells > 0; dx+=8,tilex++,cells--)\r
- {\r
- int zero=0;\r
-\r
- code=Pico.vram[ts->nametab+(tilex&ts->xmask)];\r
- if (code==blank) continue;\r
- if (code>>15) { // high priority tile\r
- int cval = code | (dx<<16) | (ty<<25);\r
- if(code&0x1000) cval^=7<<26;\r
- *ts->hc++ = cval; // cache it\r
- continue;\r
- }\r
-\r
- if (code!=oldcode) {\r
- oldcode = code;\r
- // Get tile address/2:\r
- addr=(code&0x7ff)<<4;\r
- addr+=ty;\r
- if (code&0x1000) addr^=0xe; // Y-flip\r
-\r
- pal=((code>>9)&0x30)|sh;\r
- }\r
-\r
- if (code&0x0800) zero=TileFlip(dx,addr,pal);\r
- else zero=TileNorm(dx,addr,pal);\r
-\r
- if (zero) blank=code; // We know this tile is blank now\r
- }\r
-\r
- // terminate the cache list\r
- *ts->hc = 0;\r
- // if oldcode wasn't changed, it means all layer is hi priority\r
- if (oldcode == -1) rendstatus |= PDRAW_PLANE_HI_PRIO;\r
-}\r
-\r
-// this is messy\r
-void DrawStripVSRam(struct TileStrip *ts, int plane_sh, int cellskip)\r
-{\r
- int tilex,dx,code=0,addr=0,cell=0;\r
- int oldcode=-1,blank=-1; // The tile we know is blank\r
- int pal=0,scan=DrawScanline;\r
-\r
- // Draw tiles across screen:\r
- tilex=(-ts->hscroll)>>3;\r
- dx=((ts->hscroll-1)&7)+1;\r
- if(dx != 8) cell--; // have hscroll, start with negative cell\r
- cell+=cellskip;\r
- tilex+=cellskip;\r
- dx+=cellskip<<3;\r
-\r
- for (; cell < ts->cells; dx+=8,tilex++,cell++)\r
- {\r
- int zero=0,nametabadd,ty;\r
-\r
- //if((cell&1)==0)\r
- {\r
- int line,vscroll;\r
- vscroll=Pico.vsram[(plane_sh&1)+(cell&~1)];\r
-\r
- // Find the line in the name table\r
- line=(vscroll+scan)&ts->line&0xffff; // ts->line is really ymask ..\r
- nametabadd=(line>>3)<<(ts->line>>24); // .. and shift[width]\r
- ty=(line&7)<<1; // Y-Offset into tile\r
- }\r
-\r
- code=Pico.vram[ts->nametab+nametabadd+(tilex&ts->xmask)];\r
- if (code==blank) continue;\r
- if (code>>15) { // high priority tile\r
- int cval = code | (dx<<16) | (ty<<25);\r
- if(code&0x1000) cval^=7<<26;\r
- *ts->hc++ = cval; // cache it\r
- continue;\r
- }\r
-\r
- if (code!=oldcode) {\r
- oldcode = code;\r
- // Get tile address/2:\r
- addr=(code&0x7ff)<<4;\r
- if (code&0x1000) addr+=14-ty; else addr+=ty; // Y-flip\r
-\r
- pal=((code>>9)&0x30)|((plane_sh<<5)&0x40);\r
- }\r
-\r
- if (code&0x0800) zero=TileFlip(dx,addr,pal);\r
- else zero=TileNorm(dx,addr,pal);\r
-\r
- if (zero) blank=code; // We know this tile is blank now\r
- }\r
-\r
- // terminate the cache list\r
- *ts->hc = 0;\r
- if (oldcode == -1) rendstatus |= PDRAW_PLANE_HI_PRIO;\r
-}\r
-#endif\r
-\r
-#ifndef _ASM_DRAW_C\r
-static\r
-#endif\r
-void DrawStripInterlace(struct TileStrip *ts)\r
-{\r
- int tilex=0,dx=0,ty=0,code=0,addr=0,cells;\r
- int oldcode=-1,blank=-1; // The tile we know is blank\r
- int pal=0;\r
-\r
- // Draw tiles across screen:\r
- tilex=(-ts->hscroll)>>3;\r
- ty=(ts->line&15)<<1; // Y-Offset into tile\r
- dx=((ts->hscroll-1)&7)+1;\r
- cells = ts->cells;\r
- if(dx != 8) cells++; // have hscroll, need to draw 1 cell more\r
-\r
- for (; cells; dx+=8,tilex++,cells--)\r
- {\r
- int zero=0;\r
-\r
- code=Pico.vram[ts->nametab+(tilex&ts->xmask)];\r
- if (code==blank) continue;\r
- if (code>>15) { // high priority tile\r
- int cval = (code&0xfc00) | (dx<<16) | (ty<<25);\r
- cval|=(code&0x3ff)<<1;\r
- if(code&0x1000) cval^=0xf<<26;\r
- *ts->hc++ = cval; // cache it\r
- continue;\r
- }\r
-\r
- if (code!=oldcode) {\r
- oldcode = code;\r
- // Get tile address/2:\r
- addr=(code&0x7ff)<<5;\r
- if (code&0x1000) addr+=30-ty; else addr+=ty; // Y-flip\r
-\r
-// pal=Pico.cram+((code>>9)&0x30);\r
- pal=((code>>9)&0x30);\r
- }\r
-\r
- if (code&0x0800) zero=TileFlip(dx,addr,pal);\r
- else zero=TileNorm(dx,addr,pal);\r
-\r
- if (zero) blank=code; // We know this tile is blank now\r
- }\r
-\r
- // terminate the cache list\r
- *ts->hc = 0;\r
-}\r
-\r
-// --------------------------------------------\r
-\r
-#ifndef _ASM_DRAW_C\r
-static void DrawLayer(int plane_sh, int *hcache, int cellskip, int maxcells)\r
-{\r
- struct PicoVideo *pvid=&Pico.video;\r
- const char shift[4]={5,6,5,7}; // 32,64 or 128 sized tilemaps (2 is invalid)\r
- struct TileStrip ts;\r
- int width, height, ymask;\r
- int vscroll, htab;\r
-\r
- ts.hc=hcache;\r
- ts.cells=maxcells;\r
-\r
- // Work out the TileStrip to draw\r
-\r
- // Work out the name table size: 32 64 or 128 tiles (0-3)\r
- width=pvid->reg[16];\r
- height=(width>>4)&3; width&=3;\r
-\r
- ts.xmask=(1<<shift[width])-1; // X Mask in tiles (0x1f-0x7f)\r
- ymask=(height<<8)|0xff; // Y Mask in pixels\r
- if(width == 1) ymask&=0x1ff;\r
- else if(width>1) ymask =0x0ff;\r
-\r
- // Find name table:\r
- if (plane_sh&1) ts.nametab=(pvid->reg[4]&0x07)<<12; // B\r
- else ts.nametab=(pvid->reg[2]&0x38)<< 9; // A\r
-\r
- htab=pvid->reg[13]<<9; // Horizontal scroll table address\r
- if ( pvid->reg[11]&2) htab+=DrawScanline<<1; // Offset by line\r
- if ((pvid->reg[11]&1)==0) htab&=~0xf; // Offset by tile\r
- htab+=plane_sh&1; // A or B\r
-\r
- // Get horizontal scroll value, will be masked later\r
- ts.hscroll=Pico.vram[htab&0x7fff];\r
-\r
- if((pvid->reg[12]&6) == 6) {\r
- // interlace mode 2\r
- vscroll=Pico.vsram[plane_sh&1]; // Get vertical scroll value\r
-\r
- // Find the line in the name table\r
- ts.line=(vscroll+(DrawScanline<<1))&((ymask<<1)|1);\r
- ts.nametab+=(ts.line>>4)<<shift[width];\r
-\r
- DrawStripInterlace(&ts);\r
- } else if( pvid->reg[11]&4) {\r
- // shit, we have 2-cell column based vscroll\r
- // luckily this doesn't happen too often\r
- ts.line=ymask|(shift[width]<<24); // save some stuff instead of line\r
- DrawStripVSRam(&ts, plane_sh, cellskip);\r
- } else {\r
- vscroll=Pico.vsram[plane_sh&1]; // Get vertical scroll value\r
-\r
- // Find the line in the name table\r
- ts.line=(vscroll+DrawScanline)&ymask;\r
- ts.nametab+=(ts.line>>3)<<shift[width];\r
-\r
- DrawStrip(&ts, plane_sh, cellskip);\r
- }\r
-}\r
-\r
-\r
-// --------------------------------------------\r
-\r
-// tstart & tend are tile pair numbers\r
-static void DrawWindow(int tstart, int tend, int prio, int sh) // int *hcache\r
-{\r
- struct PicoVideo *pvid=&Pico.video;\r
- int tilex,ty,nametab,code=0;\r
- int blank=-1; // The tile we know is blank\r
-\r
- // Find name table line:\r
- if (pvid->reg[12]&1)\r
- {\r
- nametab=(pvid->reg[3]&0x3c)<<9; // 40-cell mode\r
- nametab+=(DrawScanline>>3)<<6;\r
- }\r
- else\r
- {\r
- nametab=(pvid->reg[3]&0x3e)<<9; // 32-cell mode\r
- nametab+=(DrawScanline>>3)<<5;\r
- }\r
-\r
- tilex=tstart<<1;\r
-\r
- if (!(rendstatus & PDRAW_WND_DIFF_PRIO)) {\r
- // check the first tile code\r
- code=Pico.vram[nametab+tilex];\r
- // if the whole window uses same priority (what is often the case), we may be able to skip this field\r
- if ((code>>15) != prio) return;\r
- }\r
-\r
- tend<<=1;\r
- ty=(DrawScanline&7)<<1; // Y-Offset into tile\r
-\r
- // Draw tiles across screen:\r
- if (!sh)\r
- {\r
- for (; tilex < tend; tilex++)\r
- {\r
- int addr=0,zero=0;\r
- int pal;\r
-\r
- code=Pico.vram[nametab+tilex];\r
- if (code==blank) continue;\r
- if ((code>>15) != prio) {\r
- rendstatus |= PDRAW_WND_DIFF_PRIO;\r
- continue;\r
- }\r
-\r
- pal=((code>>9)&0x30);\r
-\r
- // Get tile address/2:\r
- addr=(code&0x7ff)<<4;\r
- if (code&0x1000) addr+=14-ty; else addr+=ty; // Y-flip\r
-\r
- if (code&0x0800) zero=TileFlip(8+(tilex<<3),addr,pal);\r
- else zero=TileNorm(8+(tilex<<3),addr,pal);\r
-\r
- if (zero) blank=code; // We know this tile is blank now\r
- }\r
- }\r
- else\r
- {\r
- for (; tilex < tend; tilex++)\r
- {\r
- int addr=0,zero=0;\r
- int pal;\r
-\r
- code=Pico.vram[nametab+tilex];\r
- if(code==blank) continue;\r
- if((code>>15) != prio) {\r
- rendstatus |= PDRAW_WND_DIFF_PRIO;\r
- continue;\r
- }\r
-\r
- pal=((code>>9)&0x30);\r
-\r
- if (prio) {\r
- int *zb = (int *)(HighCol+8+(tilex<<3));\r
- *zb++ &= 0x3f3f3f3f;\r
- *zb &= 0x3f3f3f3f;\r
- } else {\r
- pal |= 0x40;\r
- }\r
-\r
- // Get tile address/2:\r
- addr=(code&0x7ff)<<4;\r
- if (code&0x1000) addr+=14-ty; else addr+=ty; // Y-flip\r
-\r
- if (code&0x0800) zero=TileFlip(8+(tilex<<3),addr,pal);\r
- else zero=TileNorm(8+(tilex<<3),addr,pal);\r
-\r
- if (zero) blank=code; // We know this tile is blank now\r
- }\r
- }\r
-}\r
-\r
-// --------------------------------------------\r
-\r
-static void DrawTilesFromCacheShPrep(void)\r
-{\r
- // as some layer has covered whole line with hi priority tiles,\r
- // we can process whole line and then act as if sh/hi mode was off.\r
- int c = 320/4, *zb = (int *)(HighCol+8);\r
- rendstatus |= PDRAW_SHHI_DONE;\r
- while (c--)\r
- {\r
- *zb++ &= 0x3f3f3f3f;\r
- }\r
-}\r
-\r
-static void DrawTilesFromCache(int *hc, int sh, int rlim)\r
-{\r
- int code, addr, dx;\r
- int pal;\r
-\r
- // *ts->hc++ = code | (dx<<16) | (ty<<25); // cache it\r
-\r
- if (sh && (rendstatus & (PDRAW_SHHI_DONE|PDRAW_PLANE_HI_PRIO)))\r
- {\r
- if (!(rendstatus & PDRAW_SHHI_DONE))\r
- DrawTilesFromCacheShPrep();\r
- sh = 0;\r
- }\r
-\r
- if (!sh)\r
- {\r
- short blank=-1; // The tile we know is blank\r
- while ((code=*hc++)) {\r
- int zero;\r
- if((short)code == blank) continue;\r
- // Get tile address/2:\r
- addr=(code&0x7ff)<<4;\r
- addr+=(unsigned int)code>>25; // y offset into tile\r
- dx=(code>>16)&0x1ff;\r
-\r
- pal=((code>>9)&0x30);\r
- if (rlim-dx < 0) goto last_cut_tile;\r
-\r
- if (code&0x0800) zero=TileFlip(dx,addr,pal);\r
- else zero=TileNorm(dx,addr,pal);\r
-\r
- if (zero) blank=(short)code;\r
- }\r
- }\r
- else\r
- {\r
- while ((code=*hc++)) {\r
- unsigned char *zb;\r
- // Get tile address/2:\r
- addr=(code&0x7ff)<<4;\r
- addr+=(unsigned int)code>>25; // y offset into tile\r
- dx=(code>>16)&0x1ff;\r
- zb = HighCol+dx;\r
- *zb++ &= 0x3f; *zb++ &= 0x3f; *zb++ &= 0x3f; *zb++ &= 0x3f;\r
- *zb++ &= 0x3f; *zb++ &= 0x3f; *zb++ &= 0x3f; *zb++ &= 0x3f;\r
-\r
- pal=((code>>9)&0x30);\r
- if (rlim-dx < 0) goto last_cut_tile;\r
-\r
- if (code&0x0800) TileFlip(dx,addr,pal);\r
- else TileNorm(dx,addr,pal);\r
- }\r
- }\r
- return;\r
-\r
-last_cut_tile:\r
- {\r
- unsigned int t, pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r
- unsigned char *pd = HighCol+dx;\r
- if (!pack) return;\r
- if (code&0x0800)\r
- {\r
- switch (rlim-dx+8)\r
- {\r
- case 7: t=pack&0x00000f00; if (t) pd[6]=(unsigned char)(pal|(t>> 8)); // "break" is left out intentionally\r
- case 6: t=pack&0x000000f0; if (t) pd[5]=(unsigned char)(pal|(t>> 4));\r
- case 5: t=pack&0x0000000f; if (t) pd[4]=(unsigned char)(pal|(t ));\r
- case 4: t=pack&0xf0000000; if (t) pd[3]=(unsigned char)(pal|(t>>28));\r
- case 3: t=pack&0x0f000000; if (t) pd[2]=(unsigned char)(pal|(t>>24));\r
- case 2: t=pack&0x00f00000; if (t) pd[1]=(unsigned char)(pal|(t>>20));\r
- case 1: t=pack&0x000f0000; if (t) pd[0]=(unsigned char)(pal|(t>>16));\r
- default: break;\r
- }\r
- }\r
- else\r
- {\r
- switch (rlim-dx+8)\r
- {\r
- case 7: t=pack&0x00f00000; if (t) pd[6]=(unsigned char)(pal|(t>>20));\r
- case 6: t=pack&0x0f000000; if (t) pd[5]=(unsigned char)(pal|(t>>24));\r
- case 5: t=pack&0xf0000000; if (t) pd[4]=(unsigned char)(pal|(t>>28));\r
- case 4: t=pack&0x0000000f; if (t) pd[3]=(unsigned char)(pal|(t ));\r
- case 3: t=pack&0x000000f0; if (t) pd[2]=(unsigned char)(pal|(t>> 4));\r
- case 2: t=pack&0x00000f00; if (t) pd[1]=(unsigned char)(pal|(t>> 8));\r
- case 1: t=pack&0x0000f000; if (t) pd[0]=(unsigned char)(pal|(t>>12));\r
- default: break;\r
- }\r
- }\r
- }\r
-}\r
-\r
-// --------------------------------------------\r
-\r
-// Index + 0 : hhhhvvvv ab--hhvv yyyyyyyy yyyyyyyy // a: offscreen h, b: offs. v, h: horiz. size\r
-// Index + 4 : xxxxxxxx xxxxxxxx pccvhnnn nnnnnnnn // x: x coord + 8\r
-\r
-static void DrawSprite(int *sprite, int sh)\r
-{\r
- int width=0,height=0;\r
- int row=0,code=0;\r
- int pal;\r
- int tile=0,delta=0;\r
- int sx, sy;\r
- int (*fTileFunc)(int sx,int addr,int pal);\r
-\r
- // parse the sprite data\r
- sy=sprite[0];\r
- code=sprite[1];\r
- sx=code>>16; // X\r
- width=sy>>28;\r
- height=(sy>>24)&7; // Width and height in tiles\r
- sy=(sy<<16)>>16; // Y\r
-\r
- row=DrawScanline-sy; // Row of the sprite we are on\r
-\r
- if (code&0x1000) row=(height<<3)-1-row; // Flip Y\r
-\r
- tile=code + (row>>3); // Tile number increases going down\r
- delta=height; // Delta to increase tile by going right\r
- if (code&0x0800) { tile+=delta*(width-1); delta=-delta; } // Flip X\r
-\r
- tile &= 0x7ff; tile<<=4; tile+=(row&7)<<1; // Tile address\r
- delta<<=4; // Delta of address\r
-\r
- pal=(code>>9)&0x30;\r
- pal|=sh<<6;\r
-\r
- if (sh && (code&0x6000) == 0x6000) {\r
- if(code&0x0800) fTileFunc=TileFlipSH_noop;\r
- else fTileFunc=TileNormSH_noop;\r
- } else {\r
- if(code&0x0800) fTileFunc=TileFlip;\r
- else fTileFunc=TileNorm;\r
- }\r
-\r
- for (; width; width--,sx+=8,tile+=delta)\r
- {\r
- if(sx<=0) continue;\r
- if(sx>=328) break; // Offscreen\r
-\r
- tile&=0x7fff; // Clip tile address\r
- fTileFunc(sx,tile,pal);\r
- }\r
-}\r
-#endif\r
-\r
-static void DrawSpriteInterlace(unsigned int *sprite)\r
-{\r
- int width=0,height=0;\r
- int row=0,code=0;\r
- int pal;\r
- int tile=0,delta=0;\r
- int sx, sy;\r
-\r
- // parse the sprite data\r
- sy=sprite[0];\r
- height=sy>>24;\r
- sy=(sy&0x3ff)-0x100; // Y\r
- width=(height>>2)&3; height&=3;\r
- width++; height++; // Width and height in tiles\r
-\r
- row=(DrawScanline<<1)-sy; // Row of the sprite we are on\r
-\r
- code=sprite[1];\r
- sx=((code>>16)&0x1ff)-0x78; // X\r
-\r
- if (code&0x1000) row^=(16<<height)-1; // Flip Y\r
-\r
- tile=code&0x3ff; // Tile number\r
- tile+=row>>4; // Tile number increases going down\r
- delta=height; // Delta to increase tile by going right\r
- if (code&0x0800) { tile+=delta*(width-1); delta=-delta; } // Flip X\r
-\r
- tile<<=5; tile+=(row&15)<<1; // Tile address\r
-\r
- delta<<=5; // Delta of address\r
- pal=((code>>9)&0x30); // Get palette pointer\r
-\r
- for (; width; width--,sx+=8,tile+=delta)\r
- {\r
- if(sx<=0) continue;\r
- if(sx>=328) break; // Offscreen\r
-\r
- tile&=0x7fff; // Clip tile address\r
- if (code&0x0800) TileFlip(sx,tile,pal);\r
- else TileNorm(sx,tile,pal);\r
- }\r
-}\r
-\r
-\r
-static void DrawAllSpritesInterlace(int pri, int sh)\r
-{\r
- struct PicoVideo *pvid=&Pico.video;\r
- int i,u,table,link=0,sline=DrawScanline<<1;\r
- unsigned int *sprites[80]; // Sprite index\r
-\r
- table=pvid->reg[5]&0x7f;\r
- if (pvid->reg[12]&1) table&=0x7e; // Lowest bit 0 in 40-cell mode\r
- table<<=8; // Get sprite table address/2\r
-\r
- for (i=u=0; u < 80 && i < 21; u++)\r
- {\r
- unsigned int *sprite;\r
- int code, sx, sy, height;\r
-\r
- sprite=(unsigned int *)(Pico.vram+((table+(link<<2))&0x7ffc)); // Find sprite\r
-\r
- // get sprite info\r
- code = sprite[0];\r
- sx = sprite[1];\r
- if(((sx>>15)&1) != pri) goto nextsprite; // wrong priority sprite\r
-\r
- // check if it is on this line\r
- sy = (code&0x3ff)-0x100;\r
- height = (((code>>24)&3)+1)<<4;\r
- if(sline < sy || sline >= sy+height) goto nextsprite; // no\r
-\r
- // check if sprite is not hidden offscreen\r
- sx = (sx>>16)&0x1ff;\r
- sx -= 0x78; // Get X coordinate + 8\r
- if(sx <= -8*3 || sx >= 328) goto nextsprite;\r
-\r
- // sprite is good, save it's pointer\r
- sprites[i++]=sprite;\r
-\r
- nextsprite:\r
- // Find next sprite\r
- link=(code>>16)&0x7f;\r
- if(!link) break; // End of sprites\r
- }\r
-\r
- // Go through sprites backwards:\r
- for (i-- ;i>=0; i--)\r
- DrawSpriteInterlace(sprites[i]);\r
-}\r
-\r
-\r
-#ifndef _ASM_DRAW_C\r
-// Index + 0 : hhhhvvvv ----hhvv yyyyyyyy yyyyyyyy // v, h: vert./horiz. size\r
-// Index + 4 : xxxxxxxx xxxxxxxx pccvhnnn nnnnnnnn // x: x coord + 8\r
-static void DrawSpritesSHi(unsigned char *sprited)\r
-{\r
- int (*fTileFunc)(int sx,int addr,int pal);\r
- unsigned char *p;\r
- int cnt;\r
-\r
- cnt = sprited[0] & 0x7f;\r
- if (cnt == 0) return;\r
-\r
- p = &sprited[3];\r
-\r
- // Go through sprites backwards:\r
- for (cnt--; cnt >= 0; cnt--)\r
- {\r
- int *sprite, code, pal, tile, sx, sy;\r
- int offs, delta, width, height, row;\r
-\r
- offs = (p[cnt] & 0x7f) * 2;\r
- sprite = HighPreSpr + offs;\r
- code = sprite[1];\r
- pal = (code>>9)&0x30;\r
-\r
- if (pal == 0x30)\r
- {\r
- if (code & 0x8000) // hi priority\r
- {\r
- if (code&0x800) fTileFunc=TileFlipSH;\r
- else fTileFunc=TileNormSH;\r
- } else {\r
- if (code&0x800) fTileFunc=TileFlipSH_onlyop_lp;\r
- else fTileFunc=TileNormSH_onlyop_lp;\r
- }\r
- } else {\r
- if (!(code & 0x8000)) continue; // non-operator low sprite, already drawn\r
- if (code&0x800) fTileFunc=TileFlip;\r
- else fTileFunc=TileNorm;\r
- }\r
-\r
- // parse remaining sprite data\r
- sy=sprite[0];\r
- sx=code>>16; // X\r
- width=sy>>28;\r
- height=(sy>>24)&7; // Width and height in tiles\r
- sy=(sy<<16)>>16; // Y\r
-\r
- row=DrawScanline-sy; // Row of the sprite we are on\r
-\r
- if (code&0x1000) row=(height<<3)-1-row; // Flip Y\r
-\r
- tile=code + (row>>3); // Tile number increases going down\r
- delta=height; // Delta to increase tile by going right\r
- if (code&0x0800) { tile+=delta*(width-1); delta=-delta; } // Flip X\r
-\r
- tile &= 0x7ff; tile<<=4; tile+=(row&7)<<1; // Tile address\r
- delta<<=4; // Delta of address\r
-\r
- for (; width; width--,sx+=8,tile+=delta)\r
- {\r
- if(sx<=0) continue;\r
- if(sx>=328) break; // Offscreen\r
-\r
- tile&=0x7fff; // Clip tile address\r
- fTileFunc(sx,tile,pal);\r
- }\r
- }\r
-}\r
-#endif // !_ASM_DRAW_C\r
-\r
-static void DrawSpritesHiAS(unsigned char *sprited, int sh)\r
-{\r
- int (*fTileFunc)(int sx,int addr,int pal);\r
- unsigned char *p;\r
- int entry, cnt, sh_cnt = 0;\r
-\r
- cnt = sprited[0] & 0x7f;\r
- if (cnt == 0) return;\r
-\r
- rendstatus |= PDRAW_SPR_LO_ON_HI;\r
-\r
- p = &sprited[3];\r
-\r
- // Go through sprites:\r
- for (entry = 0; entry < cnt; entry++)\r
- {\r
- int *sprite, code, pal, tile, sx, sy;\r
- int offs, delta, width, height, row;\r
-\r
- offs = (p[entry] & 0x7f) * 2;\r
- sprite = HighPreSpr + offs;\r
- code = sprite[1];\r
- pal = (code>>9)&0x30;\r
-\r
- if (code & 0x8000) // hi priority\r
- {\r
- if (sh && pal == 0x30)\r
- {\r
- if (code&0x800) fTileFunc=TileFlipAS_noop;\r
- else fTileFunc=TileNormAS_noop;\r
- } else {\r
- if (code&0x800) fTileFunc=TileFlipAS;\r
- else fTileFunc=TileNormAS;\r
- }\r
- } else {\r
- if (code&0x800) fTileFunc=TileFlipAS_onlymark;\r
- else fTileFunc=TileNormAS_onlymark;\r
- }\r
- if (sh && pal == 0x30)\r
- p[sh_cnt++] = offs / 2; // re-save for sh/hi pass\r
-\r
- // parse remaining sprite data\r
- sy=sprite[0];\r
- sx=code>>16; // X\r
- width=sy>>28;\r
- height=(sy>>24)&7; // Width and height in tiles\r
- sy=(sy<<16)>>16; // Y\r
-\r
- row=DrawScanline-sy; // Row of the sprite we are on\r
-\r
- if (code&0x1000) row=(height<<3)-1-row; // Flip Y\r
-\r
- tile=code + (row>>3); // Tile number increases going down\r
- delta=height; // Delta to increase tile by going right\r
- if (code&0x0800) { tile+=delta*(width-1); delta=-delta; } // Flip X\r
-\r
- tile &= 0x7ff; tile<<=4; tile+=(row&7)<<1; // Tile address\r
- delta<<=4; // Delta of address\r
-\r
- pal |= 0x80;\r
- for (; width; width--,sx+=8,tile+=delta)\r
- {\r
- if(sx<=0) continue;\r
- if(sx>=328) break; // Offscreen\r
-\r
- tile&=0x7fff; // Clip tile address\r
- fTileFunc(sx,tile,pal);\r
- }\r
- }\r
-\r
- if (!sh || !(sprited[1]&SPRL_MAY_HAVE_OP)) return;\r
-\r
- /* nasty 1: remove 'sprite' flags */\r
- {\r
- int c = 320/4, *zb = (int *)(HighCol+8);\r
- while (c--)\r
- {\r
- *zb++ &= 0x7f7f7f7f;\r
- }\r
- }\r
-\r
- /* nasty 2: sh operator pass */\r
- sprited[0] = sh_cnt;\r
- DrawSpritesSHi(sprited);\r
-}\r
-\r
-\r
-// Index + 0 : ----hhvv -lllllll -------y yyyyyyyy\r
-// Index + 4 : -------x xxxxxxxx pccvhnnn nnnnnnnn\r
-// v\r
-// Index + 0 : hhhhvvvv ----hhvv yyyyyyyy yyyyyyyy // v, h: vert./horiz. size\r
-// Index + 4 : xxxxxxxx xxxxxxxx pccvhnnn nnnnnnnn // x: x coord + 8\r
-\r
-void PrepareSprites(int full)\r
-{\r
- struct PicoVideo *pvid=&Pico.video;\r
- int u,link=0,sh;\r
- int table=0;\r
- int *pd = HighPreSpr;\r
- int max_lines = 224, max_sprites = 80, max_width = 328;\r
- int max_line_sprites = 20; // 20 sprites, 40 tiles\r
-\r
- if (!(Pico.video.reg[12]&1))\r
- max_sprites = 64, max_line_sprites = 16, max_width = 264;\r
- if (PicoOpt & POPT_DIS_SPRITE_LIM)\r
- max_line_sprites = MAX_LINE_SPRITES;\r
-\r
- if (pvid->reg[1]&8) max_lines = 240;\r
- sh = Pico.video.reg[0xC]&8; // shadow/hilight?\r
-\r
- table=pvid->reg[5]&0x7f;\r
- if (pvid->reg[12]&1) table&=0x7e; // Lowest bit 0 in 40-cell mode\r
- table<<=8; // Get sprite table address/2\r
-\r
- if (!full)\r
- {\r
- int pack;\r
- // updates: tilecode, sx\r
- for (u=0; u < max_sprites && (pack = *pd); u++, pd+=2)\r
- {\r
- unsigned int *sprite;\r
- int code2, sx, sy, height;\r
-\r
- sprite=(unsigned int *)(Pico.vram+((table+(link<<2))&0x7ffc)); // Find sprite\r
-\r
- // parse sprite info\r
- code2 = sprite[1];\r
- sx = (code2>>16)&0x1ff;\r
- sx -= 0x78; // Get X coordinate + 8\r
- sy = (pack << 16) >> 16;\r
- height = (pack >> 24) & 0xf;\r
-\r
- if (sy < max_lines && sy + (height<<3) > DrawScanline && // sprite onscreen (y)?\r
- (sx > -24 || sx < max_width)) // onscreen x\r
- {\r
- int y = (sy >= DrawScanline) ? sy : DrawScanline;\r
- int entry = ((pd - HighPreSpr) / 2) | ((code2>>8)&0x80);\r
- for (; y < sy + (height<<3) && y < max_lines; y++)\r
- {\r
- int i, cnt;\r
- cnt = HighLnSpr[y][0] & 0x7f;\r
- if (cnt >= max_line_sprites) continue; // sprite limit?\r
-\r
- for (i = 0; i < cnt; i++)\r
- if (((HighLnSpr[y][3+i] ^ entry) & 0x7f) == 0) goto found;\r
-\r
- // this sprite was previously missing\r
- HighLnSpr[y][3+cnt] = entry;\r
- HighLnSpr[y][0] = cnt + 1;\r
-found:;\r
- if (entry & 0x80)\r
- HighLnSpr[y][1] |= SPRL_HAVE_HI;\r
- else HighLnSpr[y][1] |= SPRL_HAVE_LO;\r
- }\r
- }\r
-\r
- code2 &= ~0xfe000000;\r
- code2 -= 0x00780000; // Get X coordinate + 8 in upper 16 bits\r
- pd[1] = code2;\r
-\r
- // Find next sprite\r
- link=(sprite[0]>>16)&0x7f;\r
- if (!link) break; // End of sprites\r
- }\r
- }\r
- else\r
- {\r
- for (u = 0; u < max_lines; u++)\r
- *((int *)&HighLnSpr[u][0]) = 0;\r
-\r
- for (u = 0; u < max_sprites; u++)\r
- {\r
- unsigned int *sprite;\r
- int code, code2, sx, sy, hv, height, width;\r
-\r
- sprite=(unsigned int *)(Pico.vram+((table+(link<<2))&0x7ffc)); // Find sprite\r
-\r
- // parse sprite info\r
- code = sprite[0];\r
- sy = (code&0x1ff)-0x80;\r
- hv = (code>>24)&0xf;\r
- height = (hv&3)+1;\r
-\r
- width = (hv>>2)+1;\r
- code2 = sprite[1];\r
- sx = (code2>>16)&0x1ff;\r
- sx -= 0x78; // Get X coordinate + 8\r
-\r
- if (sy < max_lines && sy + (height<<3) > DrawScanline) // sprite onscreen (y)?\r
- {\r
- int entry, y, sx_min, onscr_x, maybe_op = 0;\r
-\r
- sx_min = 8-(width<<3);\r
- onscr_x = sx_min < sx && sx < max_width;\r
- if (sh && (code2 & 0x6000) == 0x6000)\r
- maybe_op = SPRL_MAY_HAVE_OP;\r
-\r
- entry = ((pd - HighPreSpr) / 2) | ((code2>>8)&0x80);\r
- y = (sy >= DrawScanline) ? sy : DrawScanline;\r
- for (; y < sy + (height<<3) && y < max_lines; y++)\r
- {\r
- unsigned char *p = &HighLnSpr[y][0];\r
- int cnt = p[0];\r
- if (cnt >= max_line_sprites) continue; // sprite limit?\r
-\r
- if (p[2] >= max_line_sprites*2) { // tile limit?\r
- p[0] |= 0x80;\r
- continue;\r
- }\r
- p[2] += width;\r
-\r
- if (sx == -0x78) {\r
- if (cnt > 0)\r
- p[0] |= 0x80; // masked, no more sprites for this line\r
- continue;\r
- }\r
- // must keep the first sprite even if it's offscreen, for masking\r
- if (cnt > 0 && !onscr_x) continue; // offscreen x\r
-\r
- p[3+cnt] = entry;\r
- p[0] = cnt + 1;\r
- p[1] |= (entry & 0x80) ? SPRL_HAVE_HI : SPRL_HAVE_LO;\r
- p[1] |= maybe_op; // there might be op sprites on this line\r
- if (cnt > 0 && (code2 & 0x8000) && !(p[3+cnt-1]&0x80))\r
- p[1] |= SPRL_LO_ABOVE_HI;\r
- }\r
- }\r
-\r
- *pd++ = (width<<28)|(height<<24)|(hv<<16)|((unsigned short)sy);\r
- *pd++ = (sx<<16)|((unsigned short)code2);\r
-\r
- // Find next sprite\r
- link=(code>>16)&0x7f;\r
- if (!link) break; // End of sprites\r
- }\r
- *pd = 0;\r
-\r
-#if 0\r
- for (u = 0; u < max_lines; u++)\r
- {\r
- int y;\r
- printf("c%03i: %2i, %2i: ", u, HighLnSpr[u][0] & 0x7f, HighLnSpr[u][2]);\r
- for (y = 0; y < HighLnSpr[u][0] & 0x7f; y++)\r
- printf(" %i", HighLnSpr[u][y+3]);\r
- printf("\n");\r
- }\r
-#endif\r
- }\r
-}\r
-\r
-#ifndef _ASM_DRAW_C\r
-static void DrawAllSprites(unsigned char *sprited, int prio, int sh)\r
-{\r
- int rs = rendstatus;\r
- unsigned char *p;\r
- int cnt;\r
-\r
- if (rs & (PDRAW_SPRITES_MOVED|PDRAW_DIRTY_SPRITES)) {\r
- //elprintf(EL_STATUS, "PrepareSprites(%i)", (rs>>4)&1);\r
- PrepareSprites(rs & PDRAW_DIRTY_SPRITES);\r
- rendstatus = rs & ~(PDRAW_SPRITES_MOVED|PDRAW_DIRTY_SPRITES);\r
- }\r
-\r
- cnt = sprited[0] & 0x7f;\r
- if (cnt == 0) return;\r
-\r
- p = &sprited[3];\r
-\r
- // Go through sprites backwards:\r
- for (cnt--; cnt >= 0; cnt--)\r
- {\r
- int offs;\r
- if ((p[cnt] >> 7) != prio) continue;\r
- offs = (p[cnt]&0x7f) * 2;\r
- DrawSprite(HighPreSpr + offs, sh);\r
- }\r
-}\r
-\r
-\r
-// --------------------------------------------\r
-\r
-static void BackFill(int reg7, int sh)\r
-{\r
- unsigned int back;\r
-\r
- // Start with a blank scanline (background colour):\r
- back=reg7&0x3f;\r
- back|=sh<<6;\r
- back|=back<<8;\r
- back|=back<<16;\r
-\r
- memset32((int *)(HighCol+8), back, 320/4);\r
-}\r
-#endif\r
-\r
-// --------------------------------------------\r
-\r
-unsigned short HighPal[0x100];\r
-\r
-#ifndef _ASM_DRAW_C\r
-void PicoDoHighPal555(int sh)\r
-{\r
- unsigned short *pal=HighPal;\r
- int i, t;\r
-\r
- Pico.m.dirtyPal = 0;\r
-\r
- {\r
- unsigned int *spal=(void *)Pico.cram;\r
- unsigned int *dpal=(void *)HighPal;\r
- for (i = 0x3f/2; i >= 0; i--)\r
-#ifdef USE_BGR555\r
- dpal[i] = ((spal[i]&0x000f000f)<< 1)|((spal[i]&0x00f000f0)<<3)|((spal[i]&0x0f000f00)<<4);\r
-#else\r
- dpal[i] = ((spal[i]&0x000f000f)<<12)|((spal[i]&0x00f000f0)<<3)|((spal[i]&0x0f000f00)>>7);\r
-#endif\r
- }\r
-\r
- if (sh)\r
- {\r
- // shadowed pixels\r
- for (i = 0x3f; i >= 0; i--)\r
- pal[0x40|i] = pal[0xc0|i] = (unsigned short)((pal[i]>>1)&0x738e);\r
- // hilighted pixels\r
- for (i = 0x3f; i >= 0; i--) {\r
- t=pal[i]&0xe71c;t+=0x4208;if(t&0x20)t|=0x1c;if(t&0x800)t|=0x700;if(t&0x10000)t|=0xe000;t&=0xe71c;\r
- pal[0x80|i]=(unsigned short)t;\r
- }\r
- }\r
-}\r
-\r
-static void FinalizeLineBGR444(int sh)\r
-{\r
- unsigned short *pd=DrawLineDest;\r
- unsigned char *ps=HighCol+8;\r
- unsigned short *pal=Pico.cram;\r
- int len, i, t, mask=0xff;\r
-\r
- if (Pico.video.reg[12]&1) {\r
- len = 320;\r
- } else {\r
- if(!(PicoOpt&POPT_DIS_32C_BORDER)) pd+=32;\r
- len = 256;\r
- }\r
-\r
- if(sh) {\r
- pal=HighPal;\r
- if(Pico.m.dirtyPal) {\r
- blockcpy(pal, Pico.cram, 0x40*2);\r
- // shadowed pixels\r
- for(i = 0x3f; i >= 0; i--)\r
- pal[0x40|i] = pal[0xc0|i] = (unsigned short)((pal[i]>>1)&0x0777);\r
- // hilighted pixels\r
- for(i = 0x3f; i >= 0; i--) {\r
- t=pal[i]&0xeee;t+=0x444;if(t&0x10)t|=0xe;if(t&0x100)t|=0xe0;if(t&0x1000)t|=0xe00;t&=0xeee;\r
- pal[0x80|i]=(unsigned short)t;\r
- }\r
- Pico.m.dirtyPal = 0;\r
- }\r
- }\r
-\r
- if (!sh && (rendstatus & PDRAW_SPR_LO_ON_HI))\r
- mask=0x3f; // accurate sprites\r
-\r
- for(i = 0; i < len; i++)\r
- pd[i] = pal[ps[i] & mask];\r
-}\r
-\r
-\r
-static void FinalizeLineRGB555(int sh)\r
-{\r
- unsigned short *pd=DrawLineDest;\r
- unsigned char *ps=HighCol+8;\r
- unsigned short *pal=HighPal;\r
- int len;\r
-\r
- if (Pico.m.dirtyPal)\r
- PicoDoHighPal555(sh);\r
-\r
- if (Pico.video.reg[12]&1) {\r
- len = 320;\r
- } else {\r
- if (!(PicoOpt&POPT_DIS_32C_BORDER)) pd+=32;\r
- len = 256;\r
- }\r
-\r
- {\r
-#ifndef PSP\r
- int i, mask=0xff;\r
- if (!sh && (rendstatus & PDRAW_SPR_LO_ON_HI))\r
- mask=0x3f; // accurate sprites, upper bits are priority stuff\r
-\r
- for (i = 0; i < len; i++)\r
- pd[i] = pal[ps[i] & mask];\r
-#else\r
- extern void amips_clut(unsigned short *dst, unsigned char *src, unsigned short *pal, int count);\r
- extern void amips_clut_6bit(unsigned short *dst, unsigned char *src, unsigned short *pal, int count);\r
- if (!sh && (rendstatus & PDRAW_SPR_LO_ON_HI))\r
- amips_clut_6bit(pd, ps, pal, len);\r
- else amips_clut(pd, ps, pal, len);\r
-#endif\r
- }\r
-}\r
-#endif\r
-\r
-static void FinalizeLine8bit(int sh)\r
-{\r
- unsigned char *pd=DrawLineDest;\r
- int len, rs = rendstatus;\r
- static int dirty_count;\r
-\r
- if (!sh && Pico.m.dirtyPal == 1 && DrawScanline < 222)\r
- {\r
- // a hack for mid-frame palette changes\r
- if (!(rs & PDRAW_SONIC_MODE))\r
- dirty_count = 1;\r
- else dirty_count++;\r
- rs |= PDRAW_SONIC_MODE;\r
- rendstatus = rs;\r
- if (dirty_count == 3) {\r
- blockcpy(HighPal, Pico.cram, 0x40*2);\r
- } else if (dirty_count == 11) {\r
- blockcpy(HighPal+0x40, Pico.cram, 0x40*2);\r
- }\r
- }\r
-\r
- if (Pico.video.reg[12]&1) {\r
- len = 320;\r
- } else {\r
- if (!(PicoOpt&POPT_DIS_32C_BORDER)) pd+=32;\r
- len = 256;\r
- }\r
-\r
- if (!sh && (rs & PDRAW_SONIC_MODE)) {\r
- if (dirty_count >= 11) {\r
- blockcpy_or(pd, HighCol+8, len, 0x80);\r
- } else {\r
- blockcpy_or(pd, HighCol+8, len, 0x40);\r
- }\r
- } else {\r
- blockcpy(pd, HighCol+8, len);\r
- }\r
-}\r
-\r
-static void (*FinalizeLine)(int sh) = FinalizeLineBGR444;\r
-\r
-// --------------------------------------------\r
-\r
-static void DrawBlankedLine(void)\r
-{\r
- int sh=(Pico.video.reg[0xC]&8)>>3; // shadow/hilight?\r
-\r
- if (PicoScanBegin != NULL)\r
- PicoScanBegin(DrawScanline);\r
-\r
- BackFill(Pico.video.reg[7], sh);\r
-\r
- if (FinalizeLine != NULL)\r
- FinalizeLine(sh);\r
-\r
- if (PicoScanEnd != NULL)\r
- PicoScanEnd(DrawScanline);\r
-}\r
-\r
-static int DrawDisplay(int sh)\r
-{\r
- unsigned char *sprited = &HighLnSpr[DrawScanline][0];\r
- struct PicoVideo *pvid=&Pico.video;\r
- int win=0,edge=0,hvwind=0;\r
- int maxw,maxcells;\r
-\r
- rendstatus &= ~(PDRAW_SHHI_DONE|PDRAW_PLANE_HI_PRIO);\r
-\r
- if (pvid->reg[12]&1) {\r
- maxw = 328; maxcells = 40;\r
- } else {\r
- maxw = 264; maxcells = 32;\r
- }\r
-\r
- // Find out if the window is on this line:\r
- win=pvid->reg[0x12];\r
- edge=(win&0x1f)<<3;\r
-\r
- if (win&0x80) { if (DrawScanline>=edge) hvwind=1; }\r
- else { if (DrawScanline< edge) hvwind=1; }\r
-\r
- if (!hvwind) // we might have a vertical window here\r
- {\r
- win=pvid->reg[0x11];\r
- edge=win&0x1f;\r
- if (win&0x80) {\r
- if (!edge) hvwind=1;\r
- else if(edge < (maxcells>>1)) hvwind=2;\r
- } else {\r
- if (!edge);\r
- else if(edge < (maxcells>>1)) hvwind=2;\r
- else hvwind=1;\r
- }\r
- }\r
-\r
- /* - layer B low - */\r
- if (PicoDrawMask & PDRAW_LAYERB_ON)\r
- DrawLayer(1|(sh<<1), HighCacheB, 0, maxcells);\r
- /* - layer A low - */\r
- if (!(PicoDrawMask & PDRAW_LAYERA_ON));\r
- else if (hvwind == 1)\r
- DrawWindow(0, maxcells>>1, 0, sh);\r
- else if (hvwind == 2) {\r
- DrawLayer(0|(sh<<1), HighCacheA, (win&0x80) ? 0 : edge<<1, (win&0x80) ? edge<<1 : maxcells);\r
- DrawWindow( (win&0x80) ? edge : 0, (win&0x80) ? maxcells>>1 : edge, 0, sh);\r
- } else\r
- DrawLayer(0|(sh<<1), HighCacheA, 0, maxcells);\r
- /* - sprites low - */\r
- if (!(PicoDrawMask & PDRAW_SPRITES_LOW_ON));\r
- else if (rendstatus & PDRAW_INTERLACE)\r
- DrawAllSpritesInterlace(0, sh);\r
- else if (sprited[1] & SPRL_HAVE_LO)\r
- DrawAllSprites(sprited, 0, sh);\r
-\r
- /* - layer B hi - */\r
- if ((PicoDrawMask & PDRAW_LAYERB_ON) && HighCacheB[0])\r
- DrawTilesFromCache(HighCacheB, sh, maxw);\r
- /* - layer A hi - */\r
- if (!(PicoDrawMask & PDRAW_LAYERA_ON));\r
- else if (hvwind == 1)\r
- DrawWindow(0, maxcells>>1, 1, sh);\r
- else if (hvwind == 2) {\r
- if (HighCacheA[0]) DrawTilesFromCache(HighCacheA, sh, (win&0x80) ? edge<<4 : maxw);\r
- DrawWindow((win&0x80) ? edge : 0, (win&0x80) ? maxcells>>1 : edge, 1, sh);\r
- } else\r
- if (HighCacheA[0]) DrawTilesFromCache(HighCacheA, sh, maxw);\r
- /* - sprites hi - */\r
- if (!(PicoDrawMask & PDRAW_SPRITES_HI_ON));\r
- else if (rendstatus & PDRAW_INTERLACE)\r
- DrawAllSpritesInterlace(1, sh);\r
- // have sprites without layer pri bit ontop of sprites with that bit\r
- else if ((sprited[1] & 0xd0) == 0xd0 && (PicoOpt & POPT_ACC_SPRITES))\r
- DrawSpritesHiAS(sprited, sh);\r
- else if (sh && (sprited[1] & SPRL_MAY_HAVE_OP))\r
- DrawSpritesSHi(sprited);\r
- else if (sprited[1] & SPRL_HAVE_HI)\r
- DrawAllSprites(sprited, 1, 0);\r
-\r
-#if 0\r
- {\r
- int *c, a, b;\r
- for (a = 0, c = HighCacheA; *c; c++, a++);\r
- for (b = 0, c = HighCacheB; *c; c++, b++);\r
- printf("%i:%03i: a=%i, b=%i\n", Pico.m.frame_count, DrawScanline, a, b);\r
- }\r
-#endif\r
-\r
- return 0;\r
-}\r
-\r
-// MUST be called every frame\r
-PICO_INTERNAL void PicoFrameStart(void)\r
-{\r
- // prepare to do this frame\r
- rendstatus = 0;\r
- if ((Pico.video.reg[12]&6) == 6)\r
- rendstatus |= PDRAW_INTERLACE; // interlace mode\r
-\r
- if (Pico.m.dirtyPal) Pico.m.dirtyPal = 2; // reset dirty if needed\r
-\r
- DrawScanline=0;\r
- PrepareSprites(1);\r
- skip_next_line=0;\r
-}\r
-\r
-static void PicoLine(void)\r
-{\r
- int sh;\r
- if (skip_next_line>0) { skip_next_line--; return; } // skip rendering lines\r
-\r
- sh=(Pico.video.reg[0xC]&8)>>3; // shadow/hilight?\r
-\r
- if (PicoScanBegin != NULL)\r
- skip_next_line = PicoScanBegin(DrawScanline);\r
-\r
- // Draw screen:\r
- BackFill(Pico.video.reg[7], sh);\r
- if (Pico.video.reg[1]&0x40)\r
- DrawDisplay(sh);\r
-\r
- if (FinalizeLine != NULL)\r
- FinalizeLine(sh);\r
-\r
- if (PicoScanEnd != NULL)\r
- skip_next_line = PicoScanEnd(DrawScanline);\r
-}\r
-\r
-void PicoDrawSync(int to, int blank_last_line)\r
-{\r
- for (; DrawScanline < to; DrawScanline++)\r
- {\r
-#if !CAN_HANDLE_240_LINES\r
- if (DrawScanline >= 224) break;\r
-#endif\r
- PicoLine();\r
- }\r
-\r
-#if !CAN_HANDLE_240_LINES\r
- if (DrawScanline >= 224) { DrawScanline = 240; return; }\r
-#endif\r
-\r
- // last line\r
- if (DrawScanline <= to)\r
- {\r
- if (blank_last_line)\r
- DrawBlankedLine();\r
- else PicoLine();\r
- DrawScanline++;\r
- }\r
-}\r
-\r
-void PicoDrawSetColorFormat(int which)\r
-{\r
- switch (which)\r
- {\r
- case 2: FinalizeLine = FinalizeLine8bit; break;\r
- case 1: FinalizeLine = FinalizeLineRGB555; break;\r
- case 0: FinalizeLine = FinalizeLineBGR444; break;\r
- default:FinalizeLine = NULL; break;\r
- }\r
-#if OVERRIDE_HIGHCOL\r
- if (which) HighCol=DefHighCol;\r
-#endif\r
-}\r
-\r
notaz.gp2x.de / picodrive.git / blobdiff