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author | jkh <jkh@FreeBSD.org> | 1995-08-28 16:54:54 +0000 |
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committer | jkh <jkh@FreeBSD.org> | 1995-08-28 16:54:54 +0000 |
commit | 2b17fbec31ffc2e5942af1cb88340fcc9de9a2fc (patch) | |
tree | 28be44c855ad406d4141388ba52c90e7d9aa3331 /share/examples/meteor/rgb24.c | |
parent | 9d58b7eb431a526e0959673cb54d7475d8663bb1 (diff) | |
download | FreeBSD-src-2b17fbec31ffc2e5942af1cb88340fcc9de9a2fc.zip FreeBSD-src-2b17fbec31ffc2e5942af1cb88340fcc9de9a2fc.tar.gz |
Bring in example files for Mark Tinguely and Jim Lowe's Matrox Meteor driver.
Submitted by: Mark Tinguely <tinguely@plains.nodak.edu> and Jim Lowe <james>
Diffstat (limited to 'share/examples/meteor/rgb24.c')
-rw-r--r-- | share/examples/meteor/rgb24.c | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/share/examples/meteor/rgb24.c b/share/examples/meteor/rgb24.c new file mode 100644 index 0000000..f296902 --- /dev/null +++ b/share/examples/meteor/rgb24.c @@ -0,0 +1,101 @@ + /* capture a PPM file using 24 bit RGB image and read() */ +/* 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/fcntl.h> +/*#include <machine/ioctl_meteor.h>*/ +#include "/sys/i386/include/ioctl_meteor.h" + +extern int errno; +#define ROWS 300 +#define COLS 400 +#define SIZE (ROWS * COLS * 4) +main() +{ + struct meteor_geomet geo; + char buf[SIZE],b[4],header[16],*p; + 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_RGB24 ; + + 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); + } + + if ((c=read(i, &buf[0], SIZE)) < SIZE) { + printf("read failed %d %d %d\n", c, i, errno); + close(i); + exit(1); + } + close(i); + + if ((o = open("rgb24.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 400 300 255 "); + header[2] = header[6] = header[10] = header[14] = '\n'; + write (o, &header[0], 15); + /* save the RGB data to PPM file */ + for (p = &buf[0]; p < &buf[SIZE]; ) { + b[2] = *p++; /* blue */ + b[1] = *p++; /* green */ + b[0] = *p++; /* red */ + *p++; /* NULL byte */ + write(o,&b[0], 3); /* not very efficient */ + } + close(o); + exit(0); +} |