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/* capture a PPM image using RGB16 and single capture mode */
/* Copyright (c) 1995 Mark Tinguely and Jim Lowe
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Mark Tinguely and Jim Lowe
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <sys/mman.h>
#include <sys/fcntl.h>
#include <dev/bktr/ioctl_meteor.h>
extern int errno;
#define ROWS 480
#define COLS 640
#define SIZE (ROWS * COLS * 2)
main()
{
struct meteor_geomet geo;
short *rgb16;
char b[4];
char header[16];
int i,o,c;
if ((i = open("/dev/meteor", O_RDONLY)) < 0) {
printf("open failed: %d\n", errno);
exit(1);
}
/* set up the capture type and size */
geo.rows = ROWS;
geo.columns = COLS;
geo.frames = 1;
geo.oformat = METEOR_GEO_RGB16;
if (ioctl(i, METEORSETGEO, &geo) < 0) {
printf("ioctl failed: %d\n", errno);
exit(1);
}
c = METEOR_FMT_NTSC;
if (ioctl(i, METEORSFMT, &c) < 0) {
printf("ioctl failed: %d\n", errno);
exit(1);
}
c = METEOR_INPUT_DEV0;
if (ioctl(i, METEORSINPUT, &c) < 0) {
printf("ioctl failed: %d\n", errno);
exit(1);
}
rgb16 = (short *)mmap((caddr_t)0,SIZE,PROT_READ,MAP_SHARED, i, (off_t)0);
if (rgb16 == (short *) MAP_FAILED) return (0);
c = METEOR_CAP_SINGLE ;
ioctl(i, METEORCAPTUR, &c);
if ((o = open("rgb16.ppm", O_WRONLY | O_CREAT, 0644)) < 0) {
printf("ppm open failed: %d\n", errno);
exit(1);
}
/* make PPM header and save to file */
strcpy(&header[0], "P6 640 480 255 ");
header[2] = header[6] = header[10] = header[14] = '\n';
write (o, &header[0], 15);
for (c = 0 ; c < ROWS*COLS; c++) {
b[0]= ((*rgb16 >> 7) & 0xf8); /* r */
b[1]= ((*rgb16 >> 2) & 0xf8); /* g */
b[2]= ((*rgb16++ << 3) & 0xf8); /* b */
write(o, &b[0], 3);
}
close(o);
close(i);
exit(0);
}
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