// "Build Engine & Tools" Copyright (c) 1993-1997 Ken Silverman // Ken Silverman's official web site: "http://www.advsys.net/ken" // See the included license file "BUILDLIC.TXT" for license info. // // This file has been modified from Ken Silverman's original release // by Jonathon Fowler (jf@jonof.id.au) #include "compat.h" #include "pragmas.h" #define MAXPALOOKUPS 256 static int numpalookups, transratio; static char palettefilename[13], origpalookup[MAXPALOOKUPS<<8]; static char palette[768], palookup[MAXPALOOKUPS<<8], transluc[65536]; static char closestcol[64][64][64]; #define FASTPALGRIDSIZ 8 static int rdist[129], gdist[129], bdist[129]; static char colhere[((FASTPALGRIDSIZ+2)*(FASTPALGRIDSIZ+2)*(FASTPALGRIDSIZ+2))>>3]; static char colhead[(FASTPALGRIDSIZ+2)*(FASTPALGRIDSIZ+2)*(FASTPALGRIDSIZ+2)]; static int colnext[256]; static char coldist[8] = {0,1,2,3,4,3,2,1}; static int colscan[27]; char getclosestcol(int r, int g, int b) { int i, j, k, dist, mindist, retcol; int *rlookup, *glookup, *blookup; char *ptr; if (closestcol[r][g][b] != 255) return(closestcol[r][g][b]); j = (r>>3)*FASTPALGRIDSIZ*FASTPALGRIDSIZ+(g>>3)*FASTPALGRIDSIZ+(b>>3)+FASTPALGRIDSIZ*FASTPALGRIDSIZ+FASTPALGRIDSIZ+1; mindist = min(rdist[coldist[r&7]+64+8],gdist[coldist[g&7]+64+8]); mindist = min(mindist,bdist[coldist[b&7]+64+8]); mindist++; rlookup = (int *)&rdist[64-r]; glookup = (int *)&gdist[64-g]; blookup = (int *)&bdist[64-b]; retcol = -1; for(k=26;k>=0;k--) { i = colscan[k]+j; if ((colhere[i>>3]&(1<<(i&7))) == 0) continue; for(i=colhead[i];i>=0;i=colnext[i]) { ptr = (char *)&palette[i*3]; dist = glookup[ptr[1]]; if (dist >= mindist) continue; dist += rlookup[ptr[0]]; if (dist >= mindist) continue; dist += blookup[ptr[2]]; if (dist >= mindist) continue; mindist = dist; retcol = i; } } if (retcol < 0) { mindist = 0x7fffffff; ptr = (char *)&palette[768-3]; for(i=255;i>=0;i--,ptr-=3) { dist = glookup[ptr[1]]; if (dist >= mindist) continue; dist += rlookup[ptr[0]]; if (dist >= mindist) continue; dist += blookup[ptr[2]]; if (dist >= mindist) continue; mindist = dist; retcol = i; } } ptr = (char *)&closestcol[r][g][b]; *ptr = retcol; if ((r >= 4) && (ptr[(-2)<<12] == retcol)) ptr[(-3)<<12] = retcol, ptr[(-2)<<12] = retcol, ptr[(-1)<<12] = retcol; if ((g >= 4) && (ptr[(-2)<<6] == retcol)) ptr[(-3)<<6] = retcol, ptr[(-2)<<6] = retcol, ptr[(-1)<<6] = retcol; if ((b >= 4) && (ptr[(-2)] == retcol)) ptr[(-3)] = retcol, ptr[(-2)] = retcol, ptr[(-1)] = retcol; if ((r < 64-4) && (ptr[(2)<<12] == retcol)) ptr[(3)<<12] = retcol, ptr[(2)<<12] = retcol, ptr[(1)<<12] = retcol; if ((g < 64-4) && (ptr[(2)<<6] == retcol)) ptr[(3)<<6] = retcol, ptr[(2)<<6] = retcol, ptr[(1)<<6] = retcol; if ((b < 64-4) && (ptr[(2)] == retcol)) ptr[(3)] = retcol, ptr[(2)] = retcol, ptr[(1)] = retcol; if ((r >= 2) && (ptr[(-1)<<12] == retcol)) ptr[(-1)<<12] = retcol; if ((g >= 2) && (ptr[(-1)<<6] == retcol)) ptr[(-1)<<6] = retcol; if ((b >= 2) && (ptr[(-1)] == retcol)) ptr[(-1)] = retcol; if ((r < 64-2) && (ptr[(1)<<12] == retcol)) ptr[(1)<<12] = retcol; if ((g < 64-2) && (ptr[(1)<<6] == retcol)) ptr[(1)<<6] = retcol; if ((b < 64-2) && (ptr[(1)] == retcol)) ptr[(1)] = retcol; return(retcol); } char getpalookup(char dashade, char dacol) { int r, g, b, t; char *ptr; ptr = (char *)&palette[dacol*3]; t = divscale16(numpalookups-dashade,numpalookups); r = ((ptr[0]*t+32768)>>16); g = ((ptr[1]*t+32768)>>16); b = ((ptr[2]*t+32768)>>16); return(getclosestcol(r,g,b)); } char gettrans(char dat1, char dat2, int datransratio) { int r, g, b; char *ptr, *ptr2; ptr = (char *)&palette[dat1*3]; ptr2 = (char *)&palette[dat2*3]; r = ptr[0]; r += (((ptr2[0]-r)*datransratio+128)>>8); g = ptr[1]; g += (((ptr2[1]-g)*datransratio+128)>>8); b = ptr[2]; b += (((ptr2[2]-b)*datransratio+128)>>8); return(getclosestcol(r,g,b)); } void initfastcolorlookup(int rscale, int gscale, int bscale) { int i, j, x, y, z; char *ptr; j = 0; for(i=64;i>=0;i--) { //j = (i-64)*(i-64); rdist[i] = rdist[128-i] = j*rscale; gdist[i] = gdist[128-i] = j*gscale; bdist[i] = bdist[128-i] = j*bscale; j += 129-(i<<1); } Bmemset(colhere, 0, sizeof(colhere)); Bmemset(colhead, 0, sizeof(colhead)); ptr = (char *)&palette[768-3]; for(i=255;i>=0;i--,ptr-=3) { j = (ptr[0]>>3)*FASTPALGRIDSIZ*FASTPALGRIDSIZ+(ptr[1]>>3)*FASTPALGRIDSIZ+(ptr[2]>>3)+FASTPALGRIDSIZ*FASTPALGRIDSIZ+FASTPALGRIDSIZ+1; if (colhere[j>>3]&(1<<(j&7))) colnext[i] = colhead[j]; else colnext[i] = -1; colhead[j] = i; colhere[j>>3] |= (1<<(j&7)); } i = 0; for(x=-FASTPALGRIDSIZ*FASTPALGRIDSIZ;x<=FASTPALGRIDSIZ*FASTPALGRIDSIZ;x+=FASTPALGRIDSIZ*FASTPALGRIDSIZ) for(y=-FASTPALGRIDSIZ;y<=FASTPALGRIDSIZ;y+=FASTPALGRIDSIZ) for(z=-1;z<=1;z++) colscan[i++] = x+y+z; i = colscan[13]; colscan[13] = colscan[26]; colscan[26] = i; } int main(int argc, char **argv) { char col, ch; short orignumpalookups; int fil, i, j, rscale, gscale, bscale; char buf[65536]; ch = 13; if (argc>1) { if (argv[1][0] == '-') { if (argv[1][1] == 't') { ch = 32; puts("Updating translucency table ONLY"); } argc--; argv++; } } if ((argc != 3) && (argc != 6)) { Bprintf("TRANSPAL [-t] by Kenneth Silverman\n"); Bprintf(" Ex #1: transpal 32 170 30 59 11 (I use these values in my BUILD demo)\n"); Bprintf(" \xc0\xc4\xc4\xc1\xc4\xc4\xc1\xc4\xc4\xc4 The RGB scales are optional\n"); Bprintf(" Ex #2: transpal 64 160\n\n"); Bprintf("Once tables are generated, the optional -t switch determines what to save:\n"); Bprintf(" Exclude -t to update both the shade table and transluscent table\n"); Bprintf(" Include -t to update the transluscent table ONLY\n"); exit(0); } Bstrcpy(palettefilename,"palette.dat"); numpalookups = Batol(argv[1]); transratio = Batol(argv[2]); if (argc == 6) { rscale = Batol(argv[3]); gscale = Batol(argv[4]); bscale = Batol(argv[5]); } else { rscale = 30; gscale = 59; bscale = 11; } if ((numpalookups < 1) || (numpalookups > 256)) { Bprintf("Invalid number of shades\n"); exit(0); } if ((transratio < 0) || (transratio > 256)) { Bprintf("Invalid transluscent ratio\n"); exit(0); } if ((fil = Bopen(palettefilename,BO_BINARY|BO_RDONLY,BS_IREAD)) == -1) { Bprintf("%s not found",palettefilename); return(0); } Bread(fil,palette,768); Bread(fil,&orignumpalookups,2); orignumpalookups = B_LITTLE16(orignumpalookups); orignumpalookups = min(max(orignumpalookups,1),256); Bread(fil,origpalookup,(int)orignumpalookups<<8); Bclose(fil); clearbuf(buf,65536>>2,0L); initfastcolorlookup(rscale,gscale,bscale); clearbuf(closestcol,262144>>2,0xffffffff); for(i=0;i>2)+buf,(int)col); drawpixel(((((i<<1)+1)*320+(j+8))>>2)+buf,(int)col); } for(i=0;i<256;i++) for(j=0;j<6;j++) { drawpixel((((j+132+0)*320+(i+8))>>2)+buf,i); drawpixel((((i+132+8)*320+(j+0))>>2)+buf,i); } for(i=0;i<256;i++) for(j=0;j<256;j++) { col = gettrans((char)i,(char)j,transratio); transluc[(i<<8)+j] = col; drawpixel((((j+132+8)*320+(i+8))>>2)+buf,(int)col); } if (ch == 13) { short s; if ((fil = Bopen(palettefilename,BO_BINARY|BO_TRUNC|BO_CREAT|BO_WRONLY,BS_IREAD|BS_IWRITE)) == -1) { Bprintf("Couldn't save file %s",palettefilename); return(0); } Bwrite(fil,palette,768); s = B_LITTLE16(numpalookups); Bwrite(fil,&s,2); Bwrite(fil,palookup,numpalookups<<8); Bwrite(fil,transluc,65536); Bclose(fil); Bprintf("Shade table AND transluscent table updated\n"); } else if (ch == 32) { short s; if ((fil = Bopen(palettefilename,BO_BINARY|BO_TRUNC|BO_CREAT|BO_WRONLY,BS_IREAD|BS_IWRITE)) == -1) { Bprintf("Couldn't save file %s",palettefilename); return(0); } Bwrite(fil,palette,768); s = B_LITTLE16(orignumpalookups); Bwrite(fil,&s,2); Bwrite(fil,origpalookup,(int)orignumpalookups<<8); Bwrite(fil,transluc,65536); Bclose(fil); Bprintf("Transluscent table updated\n"); } else Bprintf("Palette file wasn't touched\n"); return 0; }