45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
|
/***************************************************************************
|
||
|
|
* __________ __ ___.
|
||
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
||
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
||
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
||
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
||
|
|
* \/ \/ \/ \/ \/
|
||
|
|
* $Id$
|
||
|
|
*
|
||
|
|
* Copyright (C) 2010 Marcin Bukat
|
||
|
|
*
|
||
|
|
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
||
|
|
* KIND, either express or implied.
|
||
|
|
*
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
/* Magic constants. */
|
||
|
|
#define PPM_MAGIC1 'P'
|
||
|
|
#define PPM_MAGIC2 '3'
|
||
|
|
#define RPPM_MAGIC2 '6'
|
||
|
|
#define PPM_FORMAT (PPM_MAGIC1 * 256 + PPM_MAGIC2)
|
||
|
|
#define RPPM_FORMAT (PPM_MAGIC1 * 256 + RPPM_MAGIC2)
|
||
|
|
|
||
|
|
#define PPM_OVERALLMAXVAL 65535
|
||
|
|
|
||
|
|
#define ppm_error(...) rb->splashf(HZ*2, __VA_ARGS__ )
|
||
|
|
|
||
|
|
struct ppm_info {
|
||
|
|
int x;
|
||
|
|
int y;
|
||
|
|
int maxval;
|
||
|
|
int format;
|
||
|
|
unsigned char *buf;
|
||
|
|
size_t buf_size;
|
||
|
|
unsigned int native_img_size;
|
||
|
|
};
|
||
|
|
|
||
|
|
/* public prototype */
|
||
|
|
int read_ppm(int fd, struct ppm_info *ppm);
|