mirror of
https://git.code.sf.net/p/quake/quakeforge-old
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99 lines
2.1 KiB
C
99 lines
2.1 KiB
C
/*
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pcx.c
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PCX loading/saving functions
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Copyright (C) 1996-1997 Id Software, Inc.
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Copyright (C) 1999,2000 contributors of the QuakeForge project
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Please see the file "AUTHORS" for a list of contributors
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Portions Copyright (C) 1999,2000 Nelson Rush.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#include <stdlib.h>
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#include <qtypes.h>
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#include <quakeio.h>
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#include <console.h>
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#include <image.h>
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/*
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LoadPCX
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*/
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void
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LoadPCX (QFile *f, byte **pcx_rgb) {
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pcx_t *pcx, pcxbuf;
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byte palette[768];
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byte *pix;
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int x, y;
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int dataByte, runLength;
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int count;
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/*
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Parse PCX file
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*/
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Qread (f, &pcxbuf, sizeof(pcxbuf));
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pcx = &pcxbuf;
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if (pcx->manufacturer != 0x0a || pcx->version != 5 || pcx->encoding != 1
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|| pcx->bits_per_pixel != 8 || pcx->xmax >= 320
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|| pcx->ymax >= 256) {
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Con_Printf ("Bad PCX file\n");
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return;
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}
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// seek to palette
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Qseek (f, -768, SEEK_END);
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Qread (f, palette, 768);
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Qseek (f, sizeof(pcxbuf) - 4, SEEK_SET);
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count = (pcx->xmax+1) * (pcx->ymax+1);
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*pcx_rgb = malloc( count * 3);
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for (y=0 ; y<=pcx->ymax ; y++)
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{
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pix = *pcx_rgb + 3*y*(pcx->xmax+1);
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for (x=0 ; x<=pcx->ymax ; )
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{
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dataByte = Qgetc(f);
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if ((dataByte & 0xC0) == 0xC0)
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{
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runLength = dataByte & 0x3F;
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dataByte = Qgetc(f);
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}
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else
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runLength = 1;
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while(runLength-- > 0) {
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pix[x++] = dataByte;
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// pix[0] = palette[dataByte*3];
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// pix[1] = palette[dataByte*3+1];
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// pix[2] = palette[dataByte*3+2];
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// pix[3] = 255;
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// pix += 4;
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// x++;
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}
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}
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}
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}
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