mirror of
https://git.code.sf.net/p/quake/newtree
synced 2024-11-10 14:52:08 +00:00
100 lines
1.9 KiB
C
100 lines
1.9 KiB
C
/*
|
|
pcx.c
|
|
|
|
pcx image handling
|
|
|
|
Copyright (C) 1996-1997 Id Software, Inc.
|
|
|
|
This program is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU General Public License
|
|
as published by the Free Software Foundation; either version 2
|
|
of the License, or (at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
|
|
See the GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to:
|
|
|
|
Free Software Foundation, Inc.
|
|
59 Temple Place - Suite 330
|
|
Boston, MA 02111-1307, USA
|
|
|
|
$Id$
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
#include "console.h"
|
|
#include "pcx.h"
|
|
#include "qtypes.h"
|
|
#include "quakefs.h"
|
|
|
|
byte *pcx_rgb;
|
|
|
|
/*
|
|
LoadPCX
|
|
*/
|
|
void LoadPCX (QFile *f)
|
|
{
|
|
pcx_t *pcx, pcxbuf;
|
|
byte palette[768];
|
|
byte *pix;
|
|
int x, y;
|
|
int dataByte, runLength;
|
|
int count;
|
|
|
|
//
|
|
// parse the PCX file
|
|
//
|
|
Qread (f, &pcxbuf, sizeof(pcxbuf));
|
|
|
|
pcx = &pcxbuf;
|
|
|
|
if (pcx->manufacturer != 0x0a
|
|
|| pcx->version != 5
|
|
|| pcx->encoding != 1
|
|
|| pcx->bits_per_pixel != 8
|
|
|| pcx->xmax >= 320
|
|
|| pcx->ymax >= 256) {
|
|
Con_Printf ("Bad pcx file\n");
|
|
return;
|
|
}
|
|
|
|
// seek to palette
|
|
Qseek (f, -768, SEEK_END);
|
|
Qread (f, palette, 768);
|
|
|
|
Qseek (f, sizeof(pcxbuf) - 4, SEEK_SET);
|
|
|
|
count = (pcx->xmax+1) * (pcx->ymax+1);
|
|
pcx_rgb = malloc( count * 4);
|
|
|
|
for (y=0 ; y<=pcx->ymax ; y++) {
|
|
pix = pcx_rgb + 4*y*(pcx->xmax+1);
|
|
for (x=0 ; x<=pcx->ymax ; ) {
|
|
dataByte = Qgetc(f);
|
|
|
|
if((dataByte & 0xC0) == 0xC0) {
|
|
runLength = dataByte & 0x3F;
|
|
dataByte = Qgetc(f);
|
|
}
|
|
else
|
|
runLength = 1;
|
|
|
|
while(runLength-- > 0) {
|
|
pix[0] = palette[dataByte*3];
|
|
pix[1] = palette[dataByte*3+1];
|
|
pix[2] = palette[dataByte*3+2];
|
|
pix[3] = 255;
|
|
pix += 4;
|
|
x++;
|
|
}
|
|
}
|
|
}
|
|
}
|