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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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static const char RCSid[] = "$Id$"; |
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#endif |
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/* |
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* program to convert between RADIANCE and Poskanzer Pixmaps |
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*/ |
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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 <math.h> |
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#include <ctype.h> |
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#include <time.h> |
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#include "platform.h" |
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#include "color.h" |
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#include "resolu.h" |
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extern char *malloc(); |
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int agryscan(), bgryscan(), aclrscan(), bclrscan(); |
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int agryscan2(), bgryscan2(), aclrscan2(), bclrscan2(); |
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int normval(); |
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if (read(fileno(stdin), inpbuf, 2) != 2 || inpbuf[0] != 'P') |
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quiterr("input not a Poskanzer Pixmap"); |
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ptype = inpbuf[1]; |
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#ifdef MSDOS |
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#ifdef _WIN32 |
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if (ptype > 4) |
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setmode(fileno(stdin), O_BINARY); |
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setmode(fileno(stdout), O_BINARY); |
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SET_FILE_BINARY(stdin); |
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SET_FILE_BINARY(stdout); |
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#endif |
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xmax = scanint(stdin); |
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ymax = scanint(stdin); |
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quiterr("unsupported Pixmap type"); |
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} |
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} else { |
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#ifdef MSDOS |
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setmode(fileno(stdin), O_BINARY); |
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#ifdef _WIN32 |
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SET_FILE_BINARY(stdin); |
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if (binflag) |
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setmode(fileno(stdout), O_BINARY); |
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SET_FILE_BINARY(stdout); |
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#endif |
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/* get header info. */ |
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if (checkheader(stdin, COLRFMT, NULL) < 0 || |
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quiterr("error writing Radiance picture"); |
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} |
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/* free scanline */ |
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free((char *)scanout); |
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free((void *)scanout); |
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} |
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quiterr("error writing Pixmap"); |
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} |
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/* free scanline */ |
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free((char *)scanin); |
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free((void *)scanin); |
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} |
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for (y = ymax-1; y >= 0; y--) { |
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if ((*getscan)(scanout, xmax, stdin) < 0) |
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quiterr("error reading Pixmap"); |
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for (x = gamcor>1.01|gamcor<0.99?xmax:0; x--; ) { |
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for (x = (gamcor>1.01)|(gamcor<0.99)?xmax:0; x--; ) { |
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colval(scanout[x],RED) = |
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pow(colval(scanout[x],RED), gamcor); |
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colval(scanout[x],GRN) = |
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quiterr("error writing Radiance picture"); |
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} |
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/* free scanline */ |
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free((char *)scanout); |
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free((void *)scanout); |
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} |
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for (x = grey?xmax:0; x--; ) |
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colval(scanin[x],GRN) = bright(scanin[x]); |
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d = 1./gamcor; |
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for (x = d>1.01|d<0.99?xmax:0; x--; ) { |
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for (x = (d>1.01)|(d<0.99)?xmax:0; x--; ) { |
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colval(scanin[x],GRN) = pow(colval(scanin[x],GRN), d); |
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if (!grey) { |
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colval(scanin[x],RED) = |
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quiterr("error writing Pixmap"); |
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} |
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/* free scanline */ |
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free((char *)scanin); |
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free((void *)scanin); |
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} |
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