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-rwxr-xr-xDemo/sgi/video/tomono.c165
1 files changed, 0 insertions, 165 deletions
diff --git a/Demo/sgi/video/tomono.c b/Demo/sgi/video/tomono.c
deleted file mode 100755
index 546af68..0000000
--- a/Demo/sgi/video/tomono.c
+++ /dev/null
@@ -1,165 +0,0 @@
-#include <stdio.h>
-
-long *bm;
-long *nbm;
-long h, w;
-int nh, nw;
-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)
-
-#define CHOICEFUNC(np1, np2) ( random() & 1 )
-
-int inlevels = 3*255;
-int outlevels = 1;
-
-main(argc, argv)
- char **argv;
-{
- char lbuf[100];
- int x, y, xi, yi;
- int num;
- int r, g, b;
- long data;
- int i;
- double greyness;
- int inpixels, outpixels;
- int resid;
-
- setvbuf(stdout, 0, _IOFBF, 1024*128);
- if( argc != 2) {
- fprintf(stderr, "Usage: tomono 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);
- }
- /*
- ** Compute picture blackness.
- */
- inpixels = 0;
- inpixels = countpixels(0,0,w,h);
- greyness = (double)inpixels/(h*w*inlevels);
- fprintf(stderr, "%3.1f%% grey\n", 100.0*greyness);
- outpixels = (int)(greyness*outlevels*nh*nw);
- fprintf(stderr, "Inpixels: %d (%d) Outpixels %d\n", inpixels, inpixels/inlevels, outpixels);
- resid = fillpixels(0,0,nw,nh,0,0,w,h,outpixels);
- if ( resid > 1 ) fprintf(stderr, "Residue: %d pixels\n", resid);
- fprintf(stderr, "Writing %d\n", (nh*nw)*sizeof(long));
- fwrite(nbm, 1, (nh*nw)*sizeof(long), stdout);
- }
- exit(0);
-}
-
-countpixels(x0,y0,x1,y1)
-{
- int x, y, tot, data;
-
- tot = 0;
- for( y=y0; y<y1; y++)
- for(x=x0; x<x1; x++) {
- data = bm[y*w+x];
- tot += R(data);
- tot += G(data);
- tot += B(data);
- }
- return tot;
-}
-
-fillpixels(x0,y0,x1,y1,ox0,oy0,ox1,oy1,npixels)
-{
- int m, om, p1, p2, np1, np2, rp, resid;
-
- if ( npixels == 0 ) return 0;
- if ( x0+1 >= x1 && y0+1 >= y1 ) {
- if ( npixels ) {
- nbm[y0*nw+x0] = 0xffffff;
-/* fprintf(stderr, "->%d,%d\n", x0,y0); */
- return npixels - 1;
- }
- return 0;
- }
- if ( x1-x0 < y1-y0 ) {
- if ( y1 - y0 <= 2 )
- m = y0 + 1;
- else
- m = y0+1+(random()%(y1-y0-1));
-/* fprintf(stderr,"%d,%d %d,%d Y %d\n", x0, x1, y0, y1, m); */
- /* om = (oy0+oy1)/2; */ om = m;
- p1 = countpixels(ox0,oy0,ox1,om);
- p2 = countpixels(ox0,om,ox1,oy1);
- np1 = (int)(((float)p1/(p1+p2))*npixels);
- np2 = (int)(((float)p2/(p1+p2))*npixels);
- rp = npixels - np1 - np2;
- if ( rp ) {
- np1 += rp/2;
- rp = rp - rp/2;
- np2 += rp;
- }
- resid = 0;
- if ( CHOICEFUNC(np1, np2) ) {
- resid = fillpixels(x0,y0,x1,m,ox0,oy0,ox1,om,np1+resid);
- resid = fillpixels(x0,m,x1,y1,ox0,om,ox1,oy1,np2+resid);
- } else {
- resid = fillpixels(x0,m,x1,y1,ox0,om,ox1,oy1,np2+resid);
- resid = fillpixels(x0,y0,x1,m,ox0,oy0,ox1,om,np1+resid);
- }
- } else {
- if ( x1 - x0 <= 2 )
- m = x0 + 1;
- else
- m = x0+1+(random()%(x1-x0-1));
-/* fprintf(stderr,"%d,%d %d,%d X %d\n", x0, x1, y0, y1, m); */
- /* om = (ox0+ox1)/2; */ om = m;
- p1 = countpixels(ox0,oy0,om,oy1);
- p2 = countpixels(om,oy0,ox1,oy1);
- np1 = (int)(((float)p1/(p1+p2))*npixels);
- np2 = (int)(((float)p2/(p1+p2))*npixels);
- rp = npixels - np1 - np2;
- if ( rp ) {
- np1 += rp/2;
- rp = rp - rp/2;
- np2 += rp;
- }
- resid = 0;
- if ( CHOICEFUNC(np1, np2) ) {
- resid = fillpixels(x0,y0,m,y1,ox0,oy0,om,oy1,np1+resid);
- resid = fillpixels(m,y0,x1,y1,om,oy0,ox1,oy1,np2+resid);
- } else {
- resid = fillpixels(m,y0,x1,y1,om,oy0,ox1,oy1,np2+resid);
- resid = fillpixels(x0,y0,m,y1,ox0,oy0,om,oy1,np1+resid);
- }
- }
- return resid;
-}