1 files changed, 72 insertions, 0 deletions
diff --git a/Demo/sgi/video/squash2.c b/Demo/sgi/video/squash2.c
new file mode 100755
index 0000000..c4d03e9
--- /dev/null
+++ b/Demo/sgi/video/squash2.c
@@ -0,0 +1,72 @@
+#include <stdio.h>
+
+long *bm;
+long h, w;
+long factor;
+
+#define OC(x,xi) ((x)*factor+(xi))
+#define BM(x,xi,y,yi) bm[OC(y,yi)*w+OC(x,xi)]
+
+#define COMP(r,g,b) ((r) | ((g)<<8) | ((b) << 16))
+
+#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 nh, nw;
+    int x, y, xi, yi;
+    int num;
+    int r, g, b;
+    long data;
+    long *nbm, *nbmp;
+    int i;
+
+    if( argc != 2) {
+       fprintf(stderr, "Usage: squash factor\n");
+       exit(1);
+    }
+    factor = atoi(argv[1]);
+    gets(lbuf);
+    if ( sscanf(lbuf, "(%d,%d)", &w, &h) != 2) {
+	fprintf(stderr, "%s: bad size spec: %s\n", argv[0], lbuf);
+	exit(1);
+    }
+    nh = h / factor;
+    nw = w / factor;
+    printf("(%d,%d)\n", nw, nh);
+    if ( (bm = (long *)malloc(h*w*sizeof(long))) == 0) {
+	fprintf(stderr, "%s: No memory\n", argv[0]);
+	exit(1);
+    }
+    if ( (nbm = (long *)malloc(nh*nw*sizeof(long))) == 0) {
+	fprintf(stderr, "%s: No memory\n", argv[0]);
+	exit(1);
+    }
+    while( !feof(stdin) ) {
+	gets(lbuf);
+	if ( feof(stdin) ) break;
+	puts(lbuf);
+	fprintf(stderr, "Reading %d\n", h*w*sizeof(long));
+	if ( (i=fread(bm, 1, h*w*sizeof(long), stdin)) != h*w*sizeof(long)) {
+	    fprintf(stderr, "%s: short read, %d wanted %d\n", argv[0],
+		i, h*w*sizeof(long));
+	    exit(1);
+	}
+	nbmp = nbm;
+	for( y=0; y<nh; y++) {
+	    for ( x=0; x<nw; x++) {
+		r = g = b = 0;
+		num = 0;
+		*nbmp++ = BM(x,0,y,0);
+	    }
+	}
+	if (nbmp - nbm != nh * nw ) fprintf(stderr, "%d %d\n", nbmp-nbm, nh*nw);
+	fprintf(stderr, "Writing %d\n", (nbmp-nbm)*sizeof(long));
+	fwrite(nbm, 1, (nbmp-nbm)*sizeof(long), stdout);
+    }
+    exit(0);
+}