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/* Copyright (c) 1997 Silicon Graphics, Inc. */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ SGI"; |
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static const char RCSid[] = "$Id$"; |
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#endif |
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/* |
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* Quadtree driver support routines. |
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*/ |
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int qtMinNodesiz = 2; /* minimum node dimension (pixels) */ |
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struct rleaves qtL; /* our pile of leaves */ |
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int rayqleft = 0; /* rays left to queue before flush */ |
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static int4 falleaves; /* our list of fallen leaves */ |
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#define composted(li) (qtL.bl <= qtL.tl ? \ |
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} |
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/* else "really" means free up memory */ |
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for (i = 0; twigbundle[i] != NULL; i++) |
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free((char *)twigbundle[i]); |
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free((char *)twigbundle); |
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free((void *)twigbundle[i]); |
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free((void *)twigbundle); |
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twigbundle = NULL; |
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} |
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} |
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dev_value(c, p, v) /* add a pixel value to our quadtree */ |
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dev_value(c, d, p) /* add a pixel value to our quadtree */ |
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COLR c; |
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FVECT p, v; |
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FVECT d, p; |
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{ |
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register int li; |
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int mapit; |
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qtCompost(LFREEPCT); |
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mapit = 0; /* we'll map it later */ |
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} |
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VCOPY(qtL.wp[li], p); |
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qtL.wd[li] = encodedir(v); |
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tmCvColrs(&qtL.brt[li], qtL.chr[li], c, 1); |
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if (putleaf(li, 1) && mapit) |
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tmMapPixels(qtL.rgb+li, qtL.brt+li, qtL.chr+li, 1); |
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if (p == NULL) |
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VSUM(qtL.wp[li], odev.v.vp, d, FHUGE); |
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else |
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VCOPY(qtL.wp[li], p); |
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qtL.wd[li] = encodedir(d); |
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tmCvColrs(&qtL.brt[li], qtL.chr[li], (COLR *)c, 1); |
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if (putleaf(li, 1)) { |
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if (mapit) |
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tmMapPixels((BYTE *)(qtL.rgb+li), qtL.brt+li, |
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(BYTE *)(qtL.chr+li), 1); |
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if (--rayqleft == 0) |
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dev_flush(); /* flush output */ |
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} |
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} |
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if (tmComputeMapping(0., 0., 0.) != TM_E_OK) |
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return(0); |
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} |
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if (tmMapPixels(qtL.rgb+aorg, qtL.brt+aorg, |
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qtL.chr+aorg, alen) != TM_E_OK) |
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if (tmMapPixels((BYTE *)(qtL.rgb+aorg), qtL.brt+aorg, |
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(BYTE *)(qtL.chr+aorg), alen) != TM_E_OK) |
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return(0); |
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if (blen > 0) |
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tmMapPixels(qtL.rgb+borg, qtL.brt+borg, |
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qtL.chr+borg, blen); |
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tmMapPixels((BYTE *)(qtL.rgb+borg), qtL.brt+borg, |
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(BYTE *)(qtL.chr+borg), blen); |
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qtL.tml = qtL.tl; |
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return(1); |
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} |
