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greg |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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#endif |
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/* Copyright (c) 1986 Regents of the University of California */ |
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/* |
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* glimage.c - program to dump pixel file NeWS window |
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* |
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* 1/24/89 |
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*/ |
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#include <stdio.h> |
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#include <gl.h> |
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#include "color.h" |
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main(argc, argv) /* print a picture */ |
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int argc; |
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char *argv[]; |
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{ |
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char *fname; |
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FILE *input; |
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int xres, yres; |
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int winorgx, winorgy; |
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COLR *scanline; |
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long *winout; |
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int i; |
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register int j; |
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fname = argv[1]; |
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if (fname == NULL) { |
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input = stdin; |
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fname = "<stdin>"; |
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} else if ((input = fopen(fname, "r")) == NULL) { |
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perror(fname); |
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exit(1); |
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} |
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/* discard header */ |
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getheader(input, NULL); |
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/* get picture dimensions */ |
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if (fgetresolu(&xres, &yres, input) != (YMAJOR|YDECR)) { |
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fprintf(stderr, "%s: bad picture size\n", fname); |
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exit(1); |
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} |
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prefsize(xres, yres); |
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winopen("newsimage"); |
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RGBmode(); |
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gconfig(); |
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RGBcolor(0,0,0); |
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clear(); |
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getorigin(&winorgx,&winorgy); |
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winout = (long *)malloc(xres*sizeof(long)); |
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scanline = (COLR *)malloc(xres*sizeof(COLR)); |
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if (winout == NULL || scanline == NULL) { |
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perror(argv[0]); |
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exit(1); |
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} |
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for (i = yres-1; i >= 0; i--) { |
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if (freadcolrs(scanline, xres, input) < 0) { |
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fprintf(stderr, "%s: read error (y=%d)\n", fname, i); |
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exit(1); |
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} |
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normcolrs(scanline, xres); |
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for (j = 0; j < xres; j++) { |
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winout[j] = 255L<<24; |
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winout[j] |= (long)scanline[j][BLU]<<16; |
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winout[j] |= (long)scanline[j][GRN]<<8; |
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winout[j] |= (long)scanline[j][RED]; |
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} |
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lrectwrite(0,i,xres-1,i,winout); |
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} |
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pause(); |
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exit(0); |
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} |
