Initial revision

1 files changed, 63 insertions, 0 deletions

diff --git a/Demo/sgi/video/v2i.c b/Demo/sgi/video/v2i.c
new file mode 100755
index 0000000..41589d4
--- /dev/null
+++ b/Demo/sgi/video/v2i.c
@@ -0,0 +1,63 @@
+#include <stdio.h>
+#include <gl/image.h>
+
+long bm[1280];
+short rb[1280], gb[1280], bb[1280];
+long h, w;
+
+#define R(comp) ((comp) & 0xff)
+#define G(comp) (((comp)>>8) & 0xff)
+#define B(comp) (((comp)>>16) & 0xff)
+
+main(argc, argv)
+    char **argv;
+{
+    char lbuf[100];
+    int x, y;
+    int i;
+    IMAGE * of;
+    int pmask;
+
+    if( argc != 3 && argc != 4) {
+       fprintf(stderr, "Usage: v2i videofile imgfile [planemask]\n");
+       exit(1);
+    }
+    if ( argc == 4)
+	pmask = atoi(argv[3]);
+    else
+	pmask = 7;
+    if ( freopen(argv[1], "r", stdin) == NULL ) {
+	perror(argv[1]);
+	exit(1);
+    }
+    gets(lbuf);
+    if ( sscanf(lbuf, "(%d,%d)", &w, &h) != 2) {
+	fprintf(stderr, "%s: bad size spec: %s\n", argv[0], lbuf);
+	exit(1);
+    }
+    gets(lbuf);		/* Skip time info */
+    if ( w > 1280 ) {
+	fprintf(stderr, "%s: Sorry, too wide\n", argv[0]);
+	exit(1);
+    }
+    if ( (of=iopen(argv[2], "w", RLE(1), 3, w, h, 3)) == 0) {
+	perror(argv[2]);
+	exit(1);
+    }
+    for( y=0; y<h; y++) {
+	if( fread(bm, sizeof(long), w, stdin) != w) {
+	    fprintf(stderr, "%s: short read\n", argv[0]);
+	    exit(1);
+	}
+	for( x=0; x<w; x++) {
+	    if ( pmask & 1) rb[x] = R(bm[x]);
+	    if ( pmask & 2) gb[x] = G(bm[x]);
+	    if ( pmask & 4) bb[x] = B(bm[x]);
+	}
+	putrow(of, rb, y, 0);
+	putrow(of, gb, y, 1);
+	putrow(of, bb, y, 2);
+    }
+    iclose(of);
+    exit(0);
+}