X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=Pico%2Fdraw.c;fp=Pico%2Fdraw.c;h=0000000000000000000000000000000000000000;hb=1cfc5cc4ce06642b9bc45ca3b9d32793718e9455;hp=551b3d645f44e642ab181ef3caf20187eecdc808;hpb=d158df697da66bcda57307e35fc77929cfa5053c;p=picodrive.git diff --git a/Pico/draw.c b/Pico/draw.c deleted file mode 100644 index 551b3d6..0000000 --- a/Pico/draw.c +++ /dev/null @@ -1,1473 +0,0 @@ -// This is part of Pico Library - -// (c) Copyright 2004 Dave, All rights reserved. -// (c) Copyright 2006-2008 notaz, All rights reserved. -// Free for non-commercial use. - -// For commercial use, separate licencing terms must be obtained. - -/* - * The renderer has 4 modes now: - * - normal - * - shadow/hilight (s/h) - * - "sonic mode" for midline palette changes - * - accurate sprites (AS) - * - * AS and s/h both use upper bits for both priority and shadow/hilight flags. - * "sonic mode" is autodetected, shadow/hilight is enabled by emulated game. - * AS is enabled by user and takes priority over "sonic mode". - */ - -#include "pico_int.h" - -int (*PicoScanBegin)(unsigned int num) = NULL; -int (*PicoScanEnd) (unsigned int num) = NULL; - -#if OVERRIDE_HIGHCOL -static unsigned char DefHighCol[8+320+8]; -unsigned char *HighCol=DefHighCol; -#else -unsigned char HighCol[8+320+8]; -#endif -unsigned short DefOutBuff[320*2]; -void *DrawLineDest=DefOutBuff; // pointer to dest buffer where to draw this line to - -static int HighCacheA[41+1]; // caches for high layers -static int HighCacheB[41+1]; -int HighPreSpr[80*2+1]; // slightly preprocessed sprites - -#define SPRL_HAVE_HI 0x80 // have hi priority sprites -#define SPRL_HAVE_LO 0x40 // *lo* -#define SPRL_MAY_HAVE_OP 0x20 // may have operator sprites on the line -#define SPRL_LO_ABOVE_HI 0x10 // low priority sprites may be on top of hi -unsigned char HighLnSpr[240][3 + MAX_LINE_SPRITES]; // sprite_count, ^flags, tile_count, [spritep]... - -int rendstatus = 0; -int DrawScanline = 0; -int PicoDrawMask = -1; - -static int skip_next_line=0; - -//unsigned short ppt[] = { 0x0f11, 0x0ff1, 0x01f1, 0x011f, 0x01ff, 0x0f1f, 0x0f0e, 0x0e7c }; - -struct TileStrip -{ - int nametab; // Position in VRAM of name table (for this tile line) - int line; // Line number in pixels 0x000-0x3ff within the virtual tilemap - int hscroll; // Horizontal scroll value in pixels for the line - int xmask; // X-Mask (0x1f - 0x7f) for horizontal wraparound in the tilemap - int *hc; // cache for high tile codes and their positions - int cells; // cells (tiles) to draw (32 col mode doesn't need to update whole 320) -}; - -// stuff available in asm: -#ifdef _ASM_DRAW_C -void DrawWindow(int tstart, int tend, int prio, int sh); -void BackFill(int reg7, int sh); -void DrawAllSprites(unsigned char *sprited, int prio, int sh); -void DrawTilesFromCache(int *hc, int sh, int rlim); -void DrawSpritesSHi(unsigned char *sprited); -void DrawLayer(int plane_sh, int *hcache, int cellskip, int maxcells); -void FinalizeLineBGR444(int sh); -void FinalizeLineRGB555(int sh); -void *blockcpy(void *dst, const void *src, size_t n); -void blockcpy_or(void *dst, void *src, size_t n, int pat); -#else -// utility -void blockcpy_or(void *dst, void *src, size_t n, int pat) -{ - unsigned char *pd = dst, *ps = src; - for (; n; n--) - *pd++ = (unsigned char) (*ps++ | pat); -} -#define blockcpy memcpy -#endif - - -#define TileNormMaker(funcname,pix_func) \ -static int funcname(int sx,int addr,int pal) \ -{ \ - unsigned char *pd = HighCol+sx; \ - unsigned int pack=0; unsigned int t=0; \ - \ - pack=*(unsigned int *)(Pico.vram+addr); /* Get 8 pixels */ \ - if (pack) \ - { \ - t=(pack&0x0000f000)>>12; pix_func(0); \ - t=(pack&0x00000f00)>> 8; pix_func(1); \ - t=(pack&0x000000f0)>> 4; pix_func(2); \ - t=(pack&0x0000000f) ; pix_func(3); \ - t=(pack&0xf0000000)>>28; pix_func(4); \ - t=(pack&0x0f000000)>>24; pix_func(5); \ - t=(pack&0x00f00000)>>20; pix_func(6); \ - t=(pack&0x000f0000)>>16; pix_func(7); \ - return 0; \ - } \ - \ - return 1; /* Tile blank */ \ -} - - -#define TileFlipMaker(funcname,pix_func) \ -static int funcname(int sx,int addr,int pal) \ -{ \ - unsigned char *pd = HighCol+sx; \ - unsigned int pack=0; unsigned int t=0; \ - \ - pack=*(unsigned int *)(Pico.vram+addr); /* Get 8 pixels */ \ - if (pack) \ - { \ - t=(pack&0x000f0000)>>16; pix_func(0); \ - t=(pack&0x00f00000)>>20; pix_func(1); \ - t=(pack&0x0f000000)>>24; pix_func(2); \ - t=(pack&0xf0000000)>>28; pix_func(3); \ - t=(pack&0x0000000f) ; pix_func(4); \ - t=(pack&0x000000f0)>> 4; pix_func(5); \ - t=(pack&0x00000f00)>> 8; pix_func(6); \ - t=(pack&0x0000f000)>>12; pix_func(7); \ - return 0; \ - } \ - \ - return 1; /* Tile blank */ \ -} - - -#ifdef _ASM_DRAW_C_AMIPS -int TileNorm(int sx,int addr,int pal); -int TileFlip(int sx,int addr,int pal); -#else - -#define pix_just_write(x) \ - if (t) pd[x]=pal|t - -TileNormMaker(TileNorm,pix_just_write) -TileFlipMaker(TileFlip,pix_just_write) - -#endif - -#ifndef _ASM_DRAW_C - -// draw a sprite pixel, process operator colors -#define pix_sh(x) \ - if (!t); \ - else if (t==0xe) pd[x]=(pd[x]&0x3f)|0x80; /* hilight */ \ - else if (t==0xf) pd[x]= pd[x] |0xc0; /* shadow */ \ - else pd[x]=pal|t - -TileNormMaker(TileNormSH, pix_sh) -TileFlipMaker(TileFlipSH, pix_sh) - -// draw a sprite pixel ignoring operator colors -#define pix_sh_noop(x) \ - if (t && t < 0xe) \ - pd[x]=pal|t - -TileNormMaker(TileNormSH_noop, pix_sh_noop) -TileFlipMaker(TileFlipSH_noop, pix_sh_noop) - -// process operator pixels only, apply only on low pri tiles -#define pix_sh_onlyop(x) \ - if (t==0xe && (pd[x]&0x40)) pd[x]=(pd[x]&0x3f)|0x80; /* hilight */ \ - else if (t==0xf && (pd[x]&0x40)) pd[x]= pd[x] |0xc0; /* shadow */ - -TileNormMaker(TileNormSH_onlyop_lp, pix_sh_onlyop) -TileFlipMaker(TileFlipSH_onlyop_lp, pix_sh_onlyop) - -#endif - -// draw a sprite pixel (AS) -#define pix_as(x) \ - if (t && !(pd[x]&0x80)) pd[x]=pal|t - -TileNormMaker(TileNormAS, pix_as) -TileFlipMaker(TileFlipAS, pix_as) - -// draw a sprite pixel, skip operator colors (AS) -#define pix_sh_as_noop(x) \ - if (t && t < 0xe && !(pd[x]&0x80)) pd[x]=pal|t - -TileNormMaker(TileNormAS_noop, pix_sh_as_noop) -TileFlipMaker(TileFlipAS_noop, pix_sh_as_noop) - -// mark pixel as sprite pixel (AS) -#define pix_sh_as_onlymark(x) \ - if (t) pd[x]|=0x80 - -TileNormMaker(TileNormAS_onlymark, pix_sh_as_onlymark) -TileFlipMaker(TileFlipAS_onlymark, pix_sh_as_onlymark) - - -// -------------------------------------------- - -#ifndef _ASM_DRAW_C -static void DrawStrip(struct TileStrip *ts, int plane_sh, int cellskip) -{ - int tilex,dx,ty,code=0,addr=0,cells; - int oldcode=-1,blank=-1; // The tile we know is blank - int pal=0,sh; - - // Draw tiles across screen: - sh=(plane_sh<<5)&0x40; - tilex=((-ts->hscroll)>>3)+cellskip; - ty=(ts->line&7)<<1; // Y-Offset into tile - dx=((ts->hscroll-1)&7)+1; - cells = ts->cells - cellskip; - if(dx != 8) cells++; // have hscroll, need to draw 1 cell more - dx+=cellskip<<3; - - for (; cells > 0; dx+=8,tilex++,cells--) - { - int zero=0; - - code=Pico.vram[ts->nametab+(tilex&ts->xmask)]; - if (code==blank) continue; - if (code>>15) { // high priority tile - int cval = code | (dx<<16) | (ty<<25); - if(code&0x1000) cval^=7<<26; - *ts->hc++ = cval; // cache it - continue; - } - - if (code!=oldcode) { - oldcode = code; - // Get tile address/2: - addr=(code&0x7ff)<<4; - addr+=ty; - if (code&0x1000) addr^=0xe; // Y-flip - - pal=((code>>9)&0x30)|sh; - } - - if (code&0x0800) zero=TileFlip(dx,addr,pal); - else zero=TileNorm(dx,addr,pal); - - if (zero) blank=code; // We know this tile is blank now - } - - // terminate the cache list - *ts->hc = 0; - // if oldcode wasn't changed, it means all layer is hi priority - if (oldcode == -1) rendstatus |= PDRAW_PLANE_HI_PRIO; -} - -// this is messy -void DrawStripVSRam(struct TileStrip *ts, int plane_sh, int cellskip) -{ - int tilex,dx,code=0,addr=0,cell=0; - int oldcode=-1,blank=-1; // The tile we know is blank - int pal=0,scan=DrawScanline; - - // Draw tiles across screen: - tilex=(-ts->hscroll)>>3; - dx=((ts->hscroll-1)&7)+1; - if(dx != 8) cell--; // have hscroll, start with negative cell - cell+=cellskip; - tilex+=cellskip; - dx+=cellskip<<3; - - for (; cell < ts->cells; dx+=8,tilex++,cell++) - { - int zero=0,nametabadd,ty; - - //if((cell&1)==0) - { - int line,vscroll; - vscroll=Pico.vsram[(plane_sh&1)+(cell&~1)]; - - // Find the line in the name table - line=(vscroll+scan)&ts->line&0xffff; // ts->line is really ymask .. - nametabadd=(line>>3)<<(ts->line>>24); // .. and shift[width] - ty=(line&7)<<1; // Y-Offset into tile - } - - code=Pico.vram[ts->nametab+nametabadd+(tilex&ts->xmask)]; - if (code==blank) continue; - if (code>>15) { // high priority tile - int cval = code | (dx<<16) | (ty<<25); - if(code&0x1000) cval^=7<<26; - *ts->hc++ = cval; // cache it - continue; - } - - if (code!=oldcode) { - oldcode = code; - // Get tile address/2: - addr=(code&0x7ff)<<4; - if (code&0x1000) addr+=14-ty; else addr+=ty; // Y-flip - - pal=((code>>9)&0x30)|((plane_sh<<5)&0x40); - } - - if (code&0x0800) zero=TileFlip(dx,addr,pal); - else zero=TileNorm(dx,addr,pal); - - if (zero) blank=code; // We know this tile is blank now - } - - // terminate the cache list - *ts->hc = 0; - if (oldcode == -1) rendstatus |= PDRAW_PLANE_HI_PRIO; -} -#endif - -#ifndef _ASM_DRAW_C -static -#endif -void DrawStripInterlace(struct TileStrip *ts) -{ - int tilex=0,dx=0,ty=0,code=0,addr=0,cells; - int oldcode=-1,blank=-1; // The tile we know is blank - int pal=0; - - // Draw tiles across screen: - tilex=(-ts->hscroll)>>3; - ty=(ts->line&15)<<1; // Y-Offset into tile - dx=((ts->hscroll-1)&7)+1; - cells = ts->cells; - if(dx != 8) cells++; // have hscroll, need to draw 1 cell more - - for (; cells; dx+=8,tilex++,cells--) - { - int zero=0; - - code=Pico.vram[ts->nametab+(tilex&ts->xmask)]; - if (code==blank) continue; - if (code>>15) { // high priority tile - int cval = (code&0xfc00) | (dx<<16) | (ty<<25); - cval|=(code&0x3ff)<<1; - if(code&0x1000) cval^=0xf<<26; - *ts->hc++ = cval; // cache it - continue; - } - - if (code!=oldcode) { - oldcode = code; - // Get tile address/2: - addr=(code&0x7ff)<<5; - if (code&0x1000) addr+=30-ty; else addr+=ty; // Y-flip - -// pal=Pico.cram+((code>>9)&0x30); - pal=((code>>9)&0x30); - } - - if (code&0x0800) zero=TileFlip(dx,addr,pal); - else zero=TileNorm(dx,addr,pal); - - if (zero) blank=code; // We know this tile is blank now - } - - // terminate the cache list - *ts->hc = 0; -} - -// -------------------------------------------- - -#ifndef _ASM_DRAW_C -static void DrawLayer(int plane_sh, int *hcache, int cellskip, int maxcells) -{ - struct PicoVideo *pvid=&Pico.video; - const char shift[4]={5,6,5,7}; // 32,64 or 128 sized tilemaps (2 is invalid) - struct TileStrip ts; - int width, height, ymask; - int vscroll, htab; - - ts.hc=hcache; - ts.cells=maxcells; - - // Work out the TileStrip to draw - - // Work out the name table size: 32 64 or 128 tiles (0-3) - width=pvid->reg[16]; - height=(width>>4)&3; width&=3; - - ts.xmask=(1<1) ymask =0x0ff; - - // Find name table: - if (plane_sh&1) ts.nametab=(pvid->reg[4]&0x07)<<12; // B - else ts.nametab=(pvid->reg[2]&0x38)<< 9; // A - - htab=pvid->reg[13]<<9; // Horizontal scroll table address - if ( pvid->reg[11]&2) htab+=DrawScanline<<1; // Offset by line - if ((pvid->reg[11]&1)==0) htab&=~0xf; // Offset by tile - htab+=plane_sh&1; // A or B - - // Get horizontal scroll value, will be masked later - ts.hscroll=Pico.vram[htab&0x7fff]; - - if((pvid->reg[12]&6) == 6) { - // interlace mode 2 - vscroll=Pico.vsram[plane_sh&1]; // Get vertical scroll value - - // Find the line in the name table - ts.line=(vscroll+(DrawScanline<<1))&((ymask<<1)|1); - ts.nametab+=(ts.line>>4)<reg[11]&4) { - // shit, we have 2-cell column based vscroll - // luckily this doesn't happen too often - ts.line=ymask|(shift[width]<<24); // save some stuff instead of line - DrawStripVSRam(&ts, plane_sh, cellskip); - } else { - vscroll=Pico.vsram[plane_sh&1]; // Get vertical scroll value - - // Find the line in the name table - ts.line=(vscroll+DrawScanline)&ymask; - ts.nametab+=(ts.line>>3)<reg[12]&1) - { - nametab=(pvid->reg[3]&0x3c)<<9; // 40-cell mode - nametab+=(DrawScanline>>3)<<6; - } - else - { - nametab=(pvid->reg[3]&0x3e)<<9; // 32-cell mode - nametab+=(DrawScanline>>3)<<5; - } - - tilex=tstart<<1; - - if (!(rendstatus & PDRAW_WND_DIFF_PRIO)) { - // check the first tile code - code=Pico.vram[nametab+tilex]; - // if the whole window uses same priority (what is often the case), we may be able to skip this field - if ((code>>15) != prio) return; - } - - tend<<=1; - ty=(DrawScanline&7)<<1; // Y-Offset into tile - - // Draw tiles across screen: - if (!sh) - { - for (; tilex < tend; tilex++) - { - int addr=0,zero=0; - int pal; - - code=Pico.vram[nametab+tilex]; - if (code==blank) continue; - if ((code>>15) != prio) { - rendstatus |= PDRAW_WND_DIFF_PRIO; - continue; - } - - pal=((code>>9)&0x30); - - // Get tile address/2: - addr=(code&0x7ff)<<4; - if (code&0x1000) addr+=14-ty; else addr+=ty; // Y-flip - - if (code&0x0800) zero=TileFlip(8+(tilex<<3),addr,pal); - else zero=TileNorm(8+(tilex<<3),addr,pal); - - if (zero) blank=code; // We know this tile is blank now - } - } - else - { - for (; tilex < tend; tilex++) - { - int addr=0,zero=0; - int pal; - - code=Pico.vram[nametab+tilex]; - if(code==blank) continue; - if((code>>15) != prio) { - rendstatus |= PDRAW_WND_DIFF_PRIO; - continue; - } - - pal=((code>>9)&0x30); - - if (prio) { - int *zb = (int *)(HighCol+8+(tilex<<3)); - *zb++ &= 0x3f3f3f3f; - *zb &= 0x3f3f3f3f; - } else { - pal |= 0x40; - } - - // Get tile address/2: - addr=(code&0x7ff)<<4; - if (code&0x1000) addr+=14-ty; else addr+=ty; // Y-flip - - if (code&0x0800) zero=TileFlip(8+(tilex<<3),addr,pal); - else zero=TileNorm(8+(tilex<<3),addr,pal); - - if (zero) blank=code; // We know this tile is blank now - } - } -} - -// -------------------------------------------- - -static void DrawTilesFromCacheShPrep(void) -{ - // as some layer has covered whole line with hi priority tiles, - // we can process whole line and then act as if sh/hi mode was off. - int c = 320/4, *zb = (int *)(HighCol+8); - rendstatus |= PDRAW_SHHI_DONE; - while (c--) - { - *zb++ &= 0x3f3f3f3f; - } -} - -static void DrawTilesFromCache(int *hc, int sh, int rlim) -{ - int code, addr, dx; - int pal; - - // *ts->hc++ = code | (dx<<16) | (ty<<25); // cache it - - if (sh && (rendstatus & (PDRAW_SHHI_DONE|PDRAW_PLANE_HI_PRIO))) - { - if (!(rendstatus & PDRAW_SHHI_DONE)) - DrawTilesFromCacheShPrep(); - sh = 0; - } - - if (!sh) - { - short blank=-1; // The tile we know is blank - while ((code=*hc++)) { - int zero; - if((short)code == blank) continue; - // Get tile address/2: - addr=(code&0x7ff)<<4; - addr+=(unsigned int)code>>25; // y offset into tile - dx=(code>>16)&0x1ff; - - pal=((code>>9)&0x30); - if (rlim-dx < 0) goto last_cut_tile; - - if (code&0x0800) zero=TileFlip(dx,addr,pal); - else zero=TileNorm(dx,addr,pal); - - if (zero) blank=(short)code; - } - } - else - { - while ((code=*hc++)) { - unsigned char *zb; - // Get tile address/2: - addr=(code&0x7ff)<<4; - addr+=(unsigned int)code>>25; // y offset into tile - dx=(code>>16)&0x1ff; - zb = HighCol+dx; - *zb++ &= 0x3f; *zb++ &= 0x3f; *zb++ &= 0x3f; *zb++ &= 0x3f; - *zb++ &= 0x3f; *zb++ &= 0x3f; *zb++ &= 0x3f; *zb++ &= 0x3f; - - pal=((code>>9)&0x30); - if (rlim-dx < 0) goto last_cut_tile; - - if (code&0x0800) TileFlip(dx,addr,pal); - else TileNorm(dx,addr,pal); - } - } - return; - -last_cut_tile: - { - unsigned int t, pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels - unsigned char *pd = HighCol+dx; - if (!pack) return; - if (code&0x0800) - { - switch (rlim-dx+8) - { - case 7: t=pack&0x00000f00; if (t) pd[6]=(unsigned char)(pal|(t>> 8)); // "break" is left out intentionally - case 6: t=pack&0x000000f0; if (t) pd[5]=(unsigned char)(pal|(t>> 4)); - case 5: t=pack&0x0000000f; if (t) pd[4]=(unsigned char)(pal|(t )); - case 4: t=pack&0xf0000000; if (t) pd[3]=(unsigned char)(pal|(t>>28)); - case 3: t=pack&0x0f000000; if (t) pd[2]=(unsigned char)(pal|(t>>24)); - case 2: t=pack&0x00f00000; if (t) pd[1]=(unsigned char)(pal|(t>>20)); - case 1: t=pack&0x000f0000; if (t) pd[0]=(unsigned char)(pal|(t>>16)); - default: break; - } - } - else - { - switch (rlim-dx+8) - { - case 7: t=pack&0x00f00000; if (t) pd[6]=(unsigned char)(pal|(t>>20)); - case 6: t=pack&0x0f000000; if (t) pd[5]=(unsigned char)(pal|(t>>24)); - case 5: t=pack&0xf0000000; if (t) pd[4]=(unsigned char)(pal|(t>>28)); - case 4: t=pack&0x0000000f; if (t) pd[3]=(unsigned char)(pal|(t )); - case 3: t=pack&0x000000f0; if (t) pd[2]=(unsigned char)(pal|(t>> 4)); - case 2: t=pack&0x00000f00; if (t) pd[1]=(unsigned char)(pal|(t>> 8)); - case 1: t=pack&0x0000f000; if (t) pd[0]=(unsigned char)(pal|(t>>12)); - default: break; - } - } - } -} - -// -------------------------------------------- - -// Index + 0 : hhhhvvvv ab--hhvv yyyyyyyy yyyyyyyy // a: offscreen h, b: offs. v, h: horiz. size -// Index + 4 : xxxxxxxx xxxxxxxx pccvhnnn nnnnnnnn // x: x coord + 8 - -static void DrawSprite(int *sprite, int sh) -{ - int width=0,height=0; - int row=0,code=0; - int pal; - int tile=0,delta=0; - int sx, sy; - int (*fTileFunc)(int sx,int addr,int pal); - - // parse the sprite data - sy=sprite[0]; - code=sprite[1]; - sx=code>>16; // X - width=sy>>28; - height=(sy>>24)&7; // Width and height in tiles - sy=(sy<<16)>>16; // Y - - row=DrawScanline-sy; // Row of the sprite we are on - - if (code&0x1000) row=(height<<3)-1-row; // Flip Y - - tile=code + (row>>3); // Tile number increases going down - delta=height; // Delta to increase tile by going right - if (code&0x0800) { tile+=delta*(width-1); delta=-delta; } // Flip X - - tile &= 0x7ff; tile<<=4; tile+=(row&7)<<1; // Tile address - delta<<=4; // Delta of address - - pal=(code>>9)&0x30; - pal|=sh<<6; - - if (sh && (code&0x6000) == 0x6000) { - if(code&0x0800) fTileFunc=TileFlipSH_noop; - else fTileFunc=TileNormSH_noop; - } else { - if(code&0x0800) fTileFunc=TileFlip; - else fTileFunc=TileNorm; - } - - for (; width; width--,sx+=8,tile+=delta) - { - if(sx<=0) continue; - if(sx>=328) break; // Offscreen - - tile&=0x7fff; // Clip tile address - fTileFunc(sx,tile,pal); - } -} -#endif - -static void DrawSpriteInterlace(unsigned int *sprite) -{ - int width=0,height=0; - int row=0,code=0; - int pal; - int tile=0,delta=0; - int sx, sy; - - // parse the sprite data - sy=sprite[0]; - height=sy>>24; - sy=(sy&0x3ff)-0x100; // Y - width=(height>>2)&3; height&=3; - width++; height++; // Width and height in tiles - - row=(DrawScanline<<1)-sy; // Row of the sprite we are on - - code=sprite[1]; - sx=((code>>16)&0x1ff)-0x78; // X - - if (code&0x1000) row^=(16<>4; // Tile number increases going down - delta=height; // Delta to increase tile by going right - if (code&0x0800) { tile+=delta*(width-1); delta=-delta; } // Flip X - - tile<<=5; tile+=(row&15)<<1; // Tile address - - delta<<=5; // Delta of address - pal=((code>>9)&0x30); // Get palette pointer - - for (; width; width--,sx+=8,tile+=delta) - { - if(sx<=0) continue; - if(sx>=328) break; // Offscreen - - tile&=0x7fff; // Clip tile address - if (code&0x0800) TileFlip(sx,tile,pal); - else TileNorm(sx,tile,pal); - } -} - - -static void DrawAllSpritesInterlace(int pri, int sh) -{ - struct PicoVideo *pvid=&Pico.video; - int i,u,table,link=0,sline=DrawScanline<<1; - unsigned int *sprites[80]; // Sprite index - - table=pvid->reg[5]&0x7f; - if (pvid->reg[12]&1) table&=0x7e; // Lowest bit 0 in 40-cell mode - table<<=8; // Get sprite table address/2 - - for (i=u=0; u < 80 && i < 21; u++) - { - unsigned int *sprite; - int code, sx, sy, height; - - sprite=(unsigned int *)(Pico.vram+((table+(link<<2))&0x7ffc)); // Find sprite - - // get sprite info - code = sprite[0]; - sx = sprite[1]; - if(((sx>>15)&1) != pri) goto nextsprite; // wrong priority sprite - - // check if it is on this line - sy = (code&0x3ff)-0x100; - height = (((code>>24)&3)+1)<<4; - if(sline < sy || sline >= sy+height) goto nextsprite; // no - - // check if sprite is not hidden offscreen - sx = (sx>>16)&0x1ff; - sx -= 0x78; // Get X coordinate + 8 - if(sx <= -8*3 || sx >= 328) goto nextsprite; - - // sprite is good, save it's pointer - sprites[i++]=sprite; - - nextsprite: - // Find next sprite - link=(code>>16)&0x7f; - if(!link) break; // End of sprites - } - - // Go through sprites backwards: - for (i-- ;i>=0; i--) - DrawSpriteInterlace(sprites[i]); -} - - -#ifndef _ASM_DRAW_C -// Index + 0 : hhhhvvvv ----hhvv yyyyyyyy yyyyyyyy // v, h: vert./horiz. size -// Index + 4 : xxxxxxxx xxxxxxxx pccvhnnn nnnnnnnn // x: x coord + 8 -static void DrawSpritesSHi(unsigned char *sprited) -{ - int (*fTileFunc)(int sx,int addr,int pal); - unsigned char *p; - int cnt; - - cnt = sprited[0] & 0x7f; - if (cnt == 0) return; - - p = &sprited[3]; - - // Go through sprites backwards: - for (cnt--; cnt >= 0; cnt--) - { - int *sprite, code, pal, tile, sx, sy; - int offs, delta, width, height, row; - - offs = (p[cnt] & 0x7f) * 2; - sprite = HighPreSpr + offs; - code = sprite[1]; - pal = (code>>9)&0x30; - - if (pal == 0x30) - { - if (code & 0x8000) // hi priority - { - if (code&0x800) fTileFunc=TileFlipSH; - else fTileFunc=TileNormSH; - } else { - if (code&0x800) fTileFunc=TileFlipSH_onlyop_lp; - else fTileFunc=TileNormSH_onlyop_lp; - } - } else { - if (!(code & 0x8000)) continue; // non-operator low sprite, already drawn - if (code&0x800) fTileFunc=TileFlip; - else fTileFunc=TileNorm; - } - - // parse remaining sprite data - sy=sprite[0]; - sx=code>>16; // X - width=sy>>28; - height=(sy>>24)&7; // Width and height in tiles - sy=(sy<<16)>>16; // Y - - row=DrawScanline-sy; // Row of the sprite we are on - - if (code&0x1000) row=(height<<3)-1-row; // Flip Y - - tile=code + (row>>3); // Tile number increases going down - delta=height; // Delta to increase tile by going right - if (code&0x0800) { tile+=delta*(width-1); delta=-delta; } // Flip X - - tile &= 0x7ff; tile<<=4; tile+=(row&7)<<1; // Tile address - delta<<=4; // Delta of address - - for (; width; width--,sx+=8,tile+=delta) - { - if(sx<=0) continue; - if(sx>=328) break; // Offscreen - - tile&=0x7fff; // Clip tile address - fTileFunc(sx,tile,pal); - } - } -} -#endif // !_ASM_DRAW_C - -static void DrawSpritesHiAS(unsigned char *sprited, int sh) -{ - int (*fTileFunc)(int sx,int addr,int pal); - unsigned char *p; - int entry, cnt, sh_cnt = 0; - - cnt = sprited[0] & 0x7f; - if (cnt == 0) return; - - rendstatus |= PDRAW_SPR_LO_ON_HI; - - p = &sprited[3]; - - // Go through sprites: - for (entry = 0; entry < cnt; entry++) - { - int *sprite, code, pal, tile, sx, sy; - int offs, delta, width, height, row; - - offs = (p[entry] & 0x7f) * 2; - sprite = HighPreSpr + offs; - code = sprite[1]; - pal = (code>>9)&0x30; - - if (code & 0x8000) // hi priority - { - if (sh && pal == 0x30) - { - if (code&0x800) fTileFunc=TileFlipAS_noop; - else fTileFunc=TileNormAS_noop; - } else { - if (code&0x800) fTileFunc=TileFlipAS; - else fTileFunc=TileNormAS; - } - } else { - if (code&0x800) fTileFunc=TileFlipAS_onlymark; - else fTileFunc=TileNormAS_onlymark; - } - if (sh && pal == 0x30) - p[sh_cnt++] = offs / 2; // re-save for sh/hi pass - - // parse remaining sprite data - sy=sprite[0]; - sx=code>>16; // X - width=sy>>28; - height=(sy>>24)&7; // Width and height in tiles - sy=(sy<<16)>>16; // Y - - row=DrawScanline-sy; // Row of the sprite we are on - - if (code&0x1000) row=(height<<3)-1-row; // Flip Y - - tile=code + (row>>3); // Tile number increases going down - delta=height; // Delta to increase tile by going right - if (code&0x0800) { tile+=delta*(width-1); delta=-delta; } // Flip X - - tile &= 0x7ff; tile<<=4; tile+=(row&7)<<1; // Tile address - delta<<=4; // Delta of address - - pal |= 0x80; - for (; width; width--,sx+=8,tile+=delta) - { - if(sx<=0) continue; - if(sx>=328) break; // Offscreen - - tile&=0x7fff; // Clip tile address - fTileFunc(sx,tile,pal); - } - } - - if (!sh || !(sprited[1]&SPRL_MAY_HAVE_OP)) return; - - /* nasty 1: remove 'sprite' flags */ - { - int c = 320/4, *zb = (int *)(HighCol+8); - while (c--) - { - *zb++ &= 0x7f7f7f7f; - } - } - - /* nasty 2: sh operator pass */ - sprited[0] = sh_cnt; - DrawSpritesSHi(sprited); -} - - -// Index + 0 : ----hhvv -lllllll -------y yyyyyyyy -// Index + 4 : -------x xxxxxxxx pccvhnnn nnnnnnnn -// v -// Index + 0 : hhhhvvvv ----hhvv yyyyyyyy yyyyyyyy // v, h: vert./horiz. size -// Index + 4 : xxxxxxxx xxxxxxxx pccvhnnn nnnnnnnn // x: x coord + 8 - -void PrepareSprites(int full) -{ - struct PicoVideo *pvid=&Pico.video; - int u,link=0,sh; - int table=0; - int *pd = HighPreSpr; - int max_lines = 224, max_sprites = 80, max_width = 328; - int max_line_sprites = 20; // 20 sprites, 40 tiles - - if (!(Pico.video.reg[12]&1)) - max_sprites = 64, max_line_sprites = 16, max_width = 264; - if (PicoOpt & POPT_DIS_SPRITE_LIM) - max_line_sprites = MAX_LINE_SPRITES; - - if (pvid->reg[1]&8) max_lines = 240; - sh = Pico.video.reg[0xC]&8; // shadow/hilight? - - table=pvid->reg[5]&0x7f; - if (pvid->reg[12]&1) table&=0x7e; // Lowest bit 0 in 40-cell mode - table<<=8; // Get sprite table address/2 - - if (!full) - { - int pack; - // updates: tilecode, sx - for (u=0; u < max_sprites && (pack = *pd); u++, pd+=2) - { - unsigned int *sprite; - int code2, sx, sy, height; - - sprite=(unsigned int *)(Pico.vram+((table+(link<<2))&0x7ffc)); // Find sprite - - // parse sprite info - code2 = sprite[1]; - sx = (code2>>16)&0x1ff; - sx -= 0x78; // Get X coordinate + 8 - sy = (pack << 16) >> 16; - height = (pack >> 24) & 0xf; - - if (sy < max_lines && sy + (height<<3) > DrawScanline && // sprite onscreen (y)? - (sx > -24 || sx < max_width)) // onscreen x - { - int y = (sy >= DrawScanline) ? sy : DrawScanline; - int entry = ((pd - HighPreSpr) / 2) | ((code2>>8)&0x80); - for (; y < sy + (height<<3) && y < max_lines; y++) - { - int i, cnt; - cnt = HighLnSpr[y][0] & 0x7f; - if (cnt >= max_line_sprites) continue; // sprite limit? - - for (i = 0; i < cnt; i++) - if (((HighLnSpr[y][3+i] ^ entry) & 0x7f) == 0) goto found; - - // this sprite was previously missing - HighLnSpr[y][3+cnt] = entry; - HighLnSpr[y][0] = cnt + 1; -found:; - if (entry & 0x80) - HighLnSpr[y][1] |= SPRL_HAVE_HI; - else HighLnSpr[y][1] |= SPRL_HAVE_LO; - } - } - - code2 &= ~0xfe000000; - code2 -= 0x00780000; // Get X coordinate + 8 in upper 16 bits - pd[1] = code2; - - // Find next sprite - link=(sprite[0]>>16)&0x7f; - if (!link) break; // End of sprites - } - } - else - { - for (u = 0; u < max_lines; u++) - *((int *)&HighLnSpr[u][0]) = 0; - - for (u = 0; u < max_sprites; u++) - { - unsigned int *sprite; - int code, code2, sx, sy, hv, height, width; - - sprite=(unsigned int *)(Pico.vram+((table+(link<<2))&0x7ffc)); // Find sprite - - // parse sprite info - code = sprite[0]; - sy = (code&0x1ff)-0x80; - hv = (code>>24)&0xf; - height = (hv&3)+1; - - width = (hv>>2)+1; - code2 = sprite[1]; - sx = (code2>>16)&0x1ff; - sx -= 0x78; // Get X coordinate + 8 - - if (sy < max_lines && sy + (height<<3) > DrawScanline) // sprite onscreen (y)? - { - int entry, y, sx_min, onscr_x, maybe_op = 0; - - sx_min = 8-(width<<3); - onscr_x = sx_min < sx && sx < max_width; - if (sh && (code2 & 0x6000) == 0x6000) - maybe_op = SPRL_MAY_HAVE_OP; - - entry = ((pd - HighPreSpr) / 2) | ((code2>>8)&0x80); - y = (sy >= DrawScanline) ? sy : DrawScanline; - for (; y < sy + (height<<3) && y < max_lines; y++) - { - unsigned char *p = &HighLnSpr[y][0]; - int cnt = p[0]; - if (cnt >= max_line_sprites) continue; // sprite limit? - - if (p[2] >= max_line_sprites*2) { // tile limit? - p[0] |= 0x80; - continue; - } - p[2] += width; - - if (sx == -0x78) { - if (cnt > 0) - p[0] |= 0x80; // masked, no more sprites for this line - continue; - } - // must keep the first sprite even if it's offscreen, for masking - if (cnt > 0 && !onscr_x) continue; // offscreen x - - p[3+cnt] = entry; - p[0] = cnt + 1; - p[1] |= (entry & 0x80) ? SPRL_HAVE_HI : SPRL_HAVE_LO; - p[1] |= maybe_op; // there might be op sprites on this line - if (cnt > 0 && (code2 & 0x8000) && !(p[3+cnt-1]&0x80)) - p[1] |= SPRL_LO_ABOVE_HI; - } - } - - *pd++ = (width<<28)|(height<<24)|(hv<<16)|((unsigned short)sy); - *pd++ = (sx<<16)|((unsigned short)code2); - - // Find next sprite - link=(code>>16)&0x7f; - if (!link) break; // End of sprites - } - *pd = 0; - -#if 0 - for (u = 0; u < max_lines; u++) - { - int y; - printf("c%03i: %2i, %2i: ", u, HighLnSpr[u][0] & 0x7f, HighLnSpr[u][2]); - for (y = 0; y < HighLnSpr[u][0] & 0x7f; y++) - printf(" %i", HighLnSpr[u][y+3]); - printf("\n"); - } -#endif - } -} - -#ifndef _ASM_DRAW_C -static void DrawAllSprites(unsigned char *sprited, int prio, int sh) -{ - int rs = rendstatus; - unsigned char *p; - int cnt; - - if (rs & (PDRAW_SPRITES_MOVED|PDRAW_DIRTY_SPRITES)) { - //elprintf(EL_STATUS, "PrepareSprites(%i)", (rs>>4)&1); - PrepareSprites(rs & PDRAW_DIRTY_SPRITES); - rendstatus = rs & ~(PDRAW_SPRITES_MOVED|PDRAW_DIRTY_SPRITES); - } - - cnt = sprited[0] & 0x7f; - if (cnt == 0) return; - - p = &sprited[3]; - - // Go through sprites backwards: - for (cnt--; cnt >= 0; cnt--) - { - int offs; - if ((p[cnt] >> 7) != prio) continue; - offs = (p[cnt]&0x7f) * 2; - DrawSprite(HighPreSpr + offs, sh); - } -} - - -// -------------------------------------------- - -static void BackFill(int reg7, int sh) -{ - unsigned int back; - - // Start with a blank scanline (background colour): - back=reg7&0x3f; - back|=sh<<6; - back|=back<<8; - back|=back<<16; - - memset32((int *)(HighCol+8), back, 320/4); -} -#endif - -// -------------------------------------------- - -unsigned short HighPal[0x100]; - -#ifndef _ASM_DRAW_C -void PicoDoHighPal555(int sh) -{ - unsigned short *pal=HighPal; - int i, t; - - Pico.m.dirtyPal = 0; - - { - unsigned int *spal=(void *)Pico.cram; - unsigned int *dpal=(void *)HighPal; - for (i = 0x3f/2; i >= 0; i--) -#ifdef USE_BGR555 - dpal[i] = ((spal[i]&0x000f000f)<< 1)|((spal[i]&0x00f000f0)<<3)|((spal[i]&0x0f000f00)<<4); -#else - dpal[i] = ((spal[i]&0x000f000f)<<12)|((spal[i]&0x00f000f0)<<3)|((spal[i]&0x0f000f00)>>7); -#endif - } - - if (sh) - { - // shadowed pixels - for (i = 0x3f; i >= 0; i--) - pal[0x40|i] = pal[0xc0|i] = (unsigned short)((pal[i]>>1)&0x738e); - // hilighted pixels - for (i = 0x3f; i >= 0; i--) { - t=pal[i]&0xe71c;t+=0x4208;if(t&0x20)t|=0x1c;if(t&0x800)t|=0x700;if(t&0x10000)t|=0xe000;t&=0xe71c; - pal[0x80|i]=(unsigned short)t; - } - } -} - -static void FinalizeLineBGR444(int sh) -{ - unsigned short *pd=DrawLineDest; - unsigned char *ps=HighCol+8; - unsigned short *pal=Pico.cram; - int len, i, t, mask=0xff; - - if (Pico.video.reg[12]&1) { - len = 320; - } else { - if(!(PicoOpt&POPT_DIS_32C_BORDER)) pd+=32; - len = 256; - } - - if(sh) { - pal=HighPal; - if(Pico.m.dirtyPal) { - blockcpy(pal, Pico.cram, 0x40*2); - // shadowed pixels - for(i = 0x3f; i >= 0; i--) - pal[0x40|i] = pal[0xc0|i] = (unsigned short)((pal[i]>>1)&0x0777); - // hilighted pixels - for(i = 0x3f; i >= 0; i--) { - t=pal[i]&0xeee;t+=0x444;if(t&0x10)t|=0xe;if(t&0x100)t|=0xe0;if(t&0x1000)t|=0xe00;t&=0xeee; - pal[0x80|i]=(unsigned short)t; - } - Pico.m.dirtyPal = 0; - } - } - - if (!sh && (rendstatus & PDRAW_SPR_LO_ON_HI)) - mask=0x3f; // accurate sprites - - for(i = 0; i < len; i++) - pd[i] = pal[ps[i] & mask]; -} - - -static void FinalizeLineRGB555(int sh) -{ - unsigned short *pd=DrawLineDest; - unsigned char *ps=HighCol+8; - unsigned short *pal=HighPal; - int len; - - if (Pico.m.dirtyPal) - PicoDoHighPal555(sh); - - if (Pico.video.reg[12]&1) { - len = 320; - } else { - if (!(PicoOpt&POPT_DIS_32C_BORDER)) pd+=32; - len = 256; - } - - { -#ifndef PSP - int i, mask=0xff; - if (!sh && (rendstatus & PDRAW_SPR_LO_ON_HI)) - mask=0x3f; // accurate sprites, upper bits are priority stuff - - for (i = 0; i < len; i++) - pd[i] = pal[ps[i] & mask]; -#else - extern void amips_clut(unsigned short *dst, unsigned char *src, unsigned short *pal, int count); - extern void amips_clut_6bit(unsigned short *dst, unsigned char *src, unsigned short *pal, int count); - if (!sh && (rendstatus & PDRAW_SPR_LO_ON_HI)) - amips_clut_6bit(pd, ps, pal, len); - else amips_clut(pd, ps, pal, len); -#endif - } -} -#endif - -static void FinalizeLine8bit(int sh) -{ - unsigned char *pd=DrawLineDest; - int len, rs = rendstatus; - static int dirty_count; - - if (!sh && Pico.m.dirtyPal == 1 && DrawScanline < 222) - { - // a hack for mid-frame palette changes - if (!(rs & PDRAW_SONIC_MODE)) - dirty_count = 1; - else dirty_count++; - rs |= PDRAW_SONIC_MODE; - rendstatus = rs; - if (dirty_count == 3) { - blockcpy(HighPal, Pico.cram, 0x40*2); - } else if (dirty_count == 11) { - blockcpy(HighPal+0x40, Pico.cram, 0x40*2); - } - } - - if (Pico.video.reg[12]&1) { - len = 320; - } else { - if (!(PicoOpt&POPT_DIS_32C_BORDER)) pd+=32; - len = 256; - } - - if (!sh && (rs & PDRAW_SONIC_MODE)) { - if (dirty_count >= 11) { - blockcpy_or(pd, HighCol+8, len, 0x80); - } else { - blockcpy_or(pd, HighCol+8, len, 0x40); - } - } else { - blockcpy(pd, HighCol+8, len); - } -} - -static void (*FinalizeLine)(int sh) = FinalizeLineBGR444; - -// -------------------------------------------- - -static void DrawBlankedLine(void) -{ - int sh=(Pico.video.reg[0xC]&8)>>3; // shadow/hilight? - - if (PicoScanBegin != NULL) - PicoScanBegin(DrawScanline); - - BackFill(Pico.video.reg[7], sh); - - if (FinalizeLine != NULL) - FinalizeLine(sh); - - if (PicoScanEnd != NULL) - PicoScanEnd(DrawScanline); -} - -static int DrawDisplay(int sh) -{ - unsigned char *sprited = &HighLnSpr[DrawScanline][0]; - struct PicoVideo *pvid=&Pico.video; - int win=0,edge=0,hvwind=0; - int maxw,maxcells; - - rendstatus &= ~(PDRAW_SHHI_DONE|PDRAW_PLANE_HI_PRIO); - - if (pvid->reg[12]&1) { - maxw = 328; maxcells = 40; - } else { - maxw = 264; maxcells = 32; - } - - // Find out if the window is on this line: - win=pvid->reg[0x12]; - edge=(win&0x1f)<<3; - - if (win&0x80) { if (DrawScanline>=edge) hvwind=1; } - else { if (DrawScanline< edge) hvwind=1; } - - if (!hvwind) // we might have a vertical window here - { - win=pvid->reg[0x11]; - edge=win&0x1f; - if (win&0x80) { - if (!edge) hvwind=1; - else if(edge < (maxcells>>1)) hvwind=2; - } else { - if (!edge); - else if(edge < (maxcells>>1)) hvwind=2; - else hvwind=1; - } - } - - /* - layer B low - */ - if (PicoDrawMask & PDRAW_LAYERB_ON) - DrawLayer(1|(sh<<1), HighCacheB, 0, maxcells); - /* - layer A low - */ - if (!(PicoDrawMask & PDRAW_LAYERA_ON)); - else if (hvwind == 1) - DrawWindow(0, maxcells>>1, 0, sh); - else if (hvwind == 2) { - DrawLayer(0|(sh<<1), HighCacheA, (win&0x80) ? 0 : edge<<1, (win&0x80) ? edge<<1 : maxcells); - DrawWindow( (win&0x80) ? edge : 0, (win&0x80) ? maxcells>>1 : edge, 0, sh); - } else - DrawLayer(0|(sh<<1), HighCacheA, 0, maxcells); - /* - sprites low - */ - if (!(PicoDrawMask & PDRAW_SPRITES_LOW_ON)); - else if (rendstatus & PDRAW_INTERLACE) - DrawAllSpritesInterlace(0, sh); - else if (sprited[1] & SPRL_HAVE_LO) - DrawAllSprites(sprited, 0, sh); - - /* - layer B hi - */ - if ((PicoDrawMask & PDRAW_LAYERB_ON) && HighCacheB[0]) - DrawTilesFromCache(HighCacheB, sh, maxw); - /* - layer A hi - */ - if (!(PicoDrawMask & PDRAW_LAYERA_ON)); - else if (hvwind == 1) - DrawWindow(0, maxcells>>1, 1, sh); - else if (hvwind == 2) { - if (HighCacheA[0]) DrawTilesFromCache(HighCacheA, sh, (win&0x80) ? edge<<4 : maxw); - DrawWindow((win&0x80) ? edge : 0, (win&0x80) ? maxcells>>1 : edge, 1, sh); - } else - if (HighCacheA[0]) DrawTilesFromCache(HighCacheA, sh, maxw); - /* - sprites hi - */ - if (!(PicoDrawMask & PDRAW_SPRITES_HI_ON)); - else if (rendstatus & PDRAW_INTERLACE) - DrawAllSpritesInterlace(1, sh); - // have sprites without layer pri bit ontop of sprites with that bit - else if ((sprited[1] & 0xd0) == 0xd0 && (PicoOpt & POPT_ACC_SPRITES)) - DrawSpritesHiAS(sprited, sh); - else if (sh && (sprited[1] & SPRL_MAY_HAVE_OP)) - DrawSpritesSHi(sprited); - else if (sprited[1] & SPRL_HAVE_HI) - DrawAllSprites(sprited, 1, 0); - -#if 0 - { - int *c, a, b; - for (a = 0, c = HighCacheA; *c; c++, a++); - for (b = 0, c = HighCacheB; *c; c++, b++); - printf("%i:%03i: a=%i, b=%i\n", Pico.m.frame_count, DrawScanline, a, b); - } -#endif - - return 0; -} - -// MUST be called every frame -PICO_INTERNAL void PicoFrameStart(void) -{ - // prepare to do this frame - rendstatus = 0; - if ((Pico.video.reg[12]&6) == 6) - rendstatus |= PDRAW_INTERLACE; // interlace mode - - if (Pico.m.dirtyPal) Pico.m.dirtyPal = 2; // reset dirty if needed - - DrawScanline=0; - PrepareSprites(1); - skip_next_line=0; -} - -static void PicoLine(void) -{ - int sh; - if (skip_next_line>0) { skip_next_line--; return; } // skip rendering lines - - sh=(Pico.video.reg[0xC]&8)>>3; // shadow/hilight? - - if (PicoScanBegin != NULL) - skip_next_line = PicoScanBegin(DrawScanline); - - // Draw screen: - BackFill(Pico.video.reg[7], sh); - if (Pico.video.reg[1]&0x40) - DrawDisplay(sh); - - if (FinalizeLine != NULL) - FinalizeLine(sh); - - if (PicoScanEnd != NULL) - skip_next_line = PicoScanEnd(DrawScanline); -} - -void PicoDrawSync(int to, int blank_last_line) -{ - for (; DrawScanline < to; DrawScanline++) - { -#if !CAN_HANDLE_240_LINES - if (DrawScanline >= 224) break; -#endif - PicoLine(); - } - -#if !CAN_HANDLE_240_LINES - if (DrawScanline >= 224) { DrawScanline = 240; return; } -#endif - - // last line - if (DrawScanline <= to) - { - if (blank_last_line) - DrawBlankedLine(); - else PicoLine(); - DrawScanline++; - } -} - -void PicoDrawSetColorFormat(int which) -{ - switch (which) - { - case 2: FinalizeLine = FinalizeLine8bit; break; - case 1: FinalizeLine = FinalizeLineRGB555; break; - case 0: FinalizeLine = FinalizeLineBGR444; break; - default:FinalizeLine = NULL; break; - } -#if OVERRIDE_HIGHCOL - if (which) HighCol=DefHighCol; -#endif -} -