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/* Copyright (c) 1993 Regents of the University of California */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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static const char RCSid[] = "$Id$"; |
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#endif |
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/* |
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* Simple median-cut color quantization based on colortab.c |
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*/ |
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#include "standard.h" |
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#include "copyright.h" |
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#include <string.h> |
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#include "standard.h" |
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#include "color.h" |
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/* histogram resolution */ |
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#define NRED 36 |
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#define NGRN 48 |
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new_histo(n) /* clear our histogram */ |
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int n; |
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{ |
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bzero((char *)histo, sizeof(histo)); |
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memset((void *)histo, '\0', sizeof(histo)); |
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return(0); |
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} |
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if (n != N) { /* get error propogation array */ |
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if (N) { |
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free((char *)cerr); |
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free((void *)cerr); |
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cerr = NULL; |
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} |
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if (n) |
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return; |
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} |
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N = n; |
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bzero((char *)cerr, 3*N*sizeof(short)); |
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memset((void *)cerr, '\0', 3*N*sizeof(short)); |
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} |
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err[0] = err[1] = err[2] = 0; |
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for (x = 0; x < n; x++) { |
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} |
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/* split box */ |
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branch = split(box); |
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bcopy((char *)box, (char *)kb, sizeof(kb)); |
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memcpy((void *)kb, (void *)box, sizeof(kb)); |
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/* do left (lesser) branch */ |
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kb[prim(branch)][1] = part(branch); |
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cut(kb, c0, (c0+c1)>>1); |
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if (nl[i][t] == i) { /* add to list */ |
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nl[i][t++] = j; |
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if (t % NBSIZ == 0) { /* enlarge list */ |
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if ((nnl = realloc(nl[i], t+NBSIZ)) == NULL) |
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if ((nnl = realloc((void *)nl[i], |
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t+NBSIZ)) == NULL) |
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t--; |
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else |
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nl[i] = (BYTE *)nnl; |
