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/* Copyright (c) 1991 Regents of the University of California */ |
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/* Copyright (c) 1992 Regents of the University of California */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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#include <stdio.h> |
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#ifdef MSDOS |
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#include <fcntl.h> |
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#endif |
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#include "rasterfile.h" |
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#include "color.h" |
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extern double atof(), pow(); |
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#include "resolu.h" |
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double gamma = 2.0; /* gamma correction */ |
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extern double pow(); |
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extern char *malloc(); |
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double gamma = 2.2; /* gamma correction */ |
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int bradj = 0; /* brightness adjustment */ |
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char *progname; |
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struct rasterfile head; |
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int reverse = 0; |
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int i; |
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#ifdef MSDOS |
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extern int _fmode; |
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_fmode = O_BINARY; |
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setmode(fileno(stdin), O_BINARY); |
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setmode(fileno(stdout), O_BINARY); |
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#endif |
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progname = argv[0]; |
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head.ras_type = RT_STANDARD; |
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for (i = 1; i < argc; i++) |
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if (argv[i][0] == '-') |
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switch (argv[i][1]) { |
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bradj = atoi(argv[++i]); |
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break; |
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case 'r': |
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reverse = !reverse; |
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if (!strcmp(argv[i], "-rgb")) |
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head.ras_type = RT_FORMAT_RGB; |
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else |
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reverse = 1; |
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break; |
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default: |
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goto userr; |
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printargs(i, argv, stdout); |
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fputformat(COLRFMT, stdout); |
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putchar('\n'); |
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fputresolu(YMAJOR|YDECR, xmax, ymax, stdout); |
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fprtresolu(xmax, ymax, stdout); |
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/* convert file */ |
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pr2ra(head.ras_type); |
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} else { |
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/* get header info. */ |
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if (checkheader(stdin, COLRFMT, NULL) < 0 || |
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fgetresolu(&xmax, &ymax, stdin) != (YMAJOR|YDECR)) |
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fgetresolu(&xmax, &ymax, stdin) < 0) |
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quiterr("bad picture format"); |
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/* write rasterfile header */ |
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head.ras_magic = RAS_MAGIC; |
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head.ras_height = ymax; |
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head.ras_depth = 24; |
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head.ras_length = xmax*ymax*3; |
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head.ras_type = RT_STANDARD; |
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head.ras_maptype = RMT_NONE; |
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head.ras_maplength = 0; |
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fwrite((char *)&head, sizeof(head), 1, stdout); |
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/* convert file */ |
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ra2pr(); |
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ra2pr(head.ras_type); |
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} |
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exit(0); |
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userr: |
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quiterr("out of memory in pr2ra"); |
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/* convert image */ |
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for (y = ymax-1; y >= 0; y--) { |
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for (x = 0; x < xmax; x++) |
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if (rf == RT_FORMAT_RGB) { |
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if (rf == RT_FORMAT_RGB) |
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for (x = 0; x < xmax; x++) { |
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scanout[x][RED] = getc(stdin); |
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scanout[x][GRN] = getc(stdin); |
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scanout[x][BLU] = getc(stdin); |
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} else { |
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} |
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else |
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for (x = 0; x < xmax; x++) { |
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scanout[x][BLU] = getc(stdin); |
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scanout[x][GRN] = getc(stdin); |
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scanout[x][RED] = getc(stdin); |
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} |
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ra2pr() /* convert Radiance scanlines to 24-bit rasterfile */ |
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ra2pr(rf) /* convert Radiance scanlines to 24-bit rasterfile */ |
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int rf; |
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{ |
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COLR *scanin; |
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register int x; |
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if (bradj) |
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shiftcolrs(scanin, xmax, bradj); |
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colrs_gambs(scanin, xmax); |
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for (x = 0; x < xmax; x++) { |
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putc(scanin[x][BLU], stdout); |
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putc(scanin[x][GRN], stdout); |
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putc(scanin[x][RED], stdout); |
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} |
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if (rf == RT_FORMAT_RGB) |
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for (x = 0; x < xmax; x++) { |
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putc(scanin[x][RED], stdout); |
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putc(scanin[x][GRN], stdout); |
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putc(scanin[x][BLU], stdout); |
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} |
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else |
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for (x = 0; x < xmax; x++) { |
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putc(scanin[x][BLU], stdout); |
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putc(scanin[x][GRN], stdout); |
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putc(scanin[x][RED], stdout); |
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} |
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if (ferror(stdout)) |
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quiterr("error writing rasterfile"); |
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} |