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>

1 files changed, 118 insertions, 0 deletions

diff --git a/share/examples/meteor/yuvpk.c b/share/examples/meteor/yuvpk.c
new file mode 100644
index 0000000..b2941e0
--- /dev/null
+++ b/share/examples/meteor/yuvpk.c
@@ -0,0 +1,118 @@
+/* capture a PPM image using YUV packed format 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/types.h>
+#include <sys/mman.h>
+#include <sys/fcntl.h>
+/*#include <machine/ioctl_meteor.h>*/
+#include "/sys/i386/include/ioctl_meteor.h"
+
+typedef unsigned char uint8;
+typedef signed char int8;
+
+static int8 *yuv_data;
+extern int errno;
+#define ROWS 480
+#define COLS 640
+#define SIZE (ROWS * COLS * 2)
+main()
+{
+	struct meteor_geomet geo;
+	char b[4],header[16],*p;
+	int i,o,c,r;
+	int y1,y2,u,v;
+
+	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_YUV_PACKED;
+
+        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);
+	}
+
+        yuv_data = (uint8 *)mmap((caddr_t)0,SIZE,PROT_READ,0, i, (off_t)0);
+
+	if (yuv_data == (int8 *) -1) return (0);
+
+	c = METEOR_CAP_SINGLE ;
+        ioctl(i, METEORCAPTUR, &c);
+  
+	if ((o = open("yuvpk.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+=2) {
+		u = *yuv_data++; 
+		if ((y1 = *yuv_data++) < 0) y1 += 256;
+		v = *yuv_data++;
+		if ((y2 = *yuv_data++) < 0) y2 += 256;
+
+		b[0]= (double)y1  + 1.375 * (double)v ; /*r*/
+		b[1]= (double)y1 - 0.703125 * (double)v -0.34375 * (double)u ;	/* g */
+		b[2]= (double)y1 + 1.734375 * (double)u ;		/* b */
+		b[3]= (double)y2  + 1.375 * (double)v ; /*r*/
+		b[4]= (double)y2 - 0.703125 * (double)v -0.34375 * (double)u ;	/* g */
+		b[5]= (double)y2 + 1.734375 * (double)u ;		/* b */
+		write(o,&b[0], 6);
+	}
+	close(o);
+	close(i);
+	exit(0);
+}