src/tiff/contrib/dbs/tiff-rgb.c

   1 /* $Id$ */
   2
   3 /*
   4  * tiff-rgb.c -- create a 24-bit Class R (rgb) TIFF file
   5  *
   6  * Copyright 1990 by Digital Equipment Corporation, Maynard, Massachusetts.
   7  *
   8  *                        All Rights Reserved
   9  *
  10  * Permission to use, copy, modify, and distribute this software and its
  11  * documentation for any purpose and without fee is hereby granted,
  12  * provided that the above copyright notice appear in all copies and that
  13  * both that copyright notice and this permission notice appear in
  14  * supporting documentation, and that the name of Digital not be
  15  * used in advertising or publicity pertaining to distribution of the
  16  * software without specific, written prior permission.
  17  *
  18  * DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
  19  * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
  20  * DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
  21  * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  22  * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
  23  * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
  24  * SOFTWARE.
  25  */
  26
  27 #include <math.h>
  28 #include <stdio.h>
  29 #include <stdlib.h>
  30 #include <string.h>
  31
  32 #include "tiffio.h"
  33
  34 #define ROUND(x)    (uint16) ((x) + 0.5)
  35 #define CMSIZE      256
  36 #define WIDTH       525
  37 #define HEIGHT      512
  38 #define TIFF_GAMMA  2.2
  39
  40 void                Usage();
  41 char *              programName;
  42
  43 int main(int argc, char **argv)
  44 {
  45     char *          input_file = NULL;
  46     double          image_gamma = TIFF_GAMMA;
  47     int             i, j;
  48     TIFF *          tif;
  49     unsigned char * scan_line;
  50     uint16          red[CMSIZE], green[CMSIZE], blue[CMSIZE];
  51     float           refblackwhite[2*3];
  52
  53     programName = argv[0];
  54
  55     switch (argc) {
  56     case 2:
  57         image_gamma = TIFF_GAMMA;
  58         input_file = argv[1];
  59         break;
  60     case 4:
  61         if (!strcmp(argv[1], "-gamma")) {
  62             image_gamma = atof(argv[2]);
  63             input_file = argv[3];
  64         } else
  65             Usage();
  66         break;
  67     default:
  68         Usage();
  69     }
  70
  71     for (i = 0; i < CMSIZE; i++) {
  72         if (i == 0)
  73             red[i] = green[i] = blue[i] = 0;
  74         else {
  75             red[i] = ROUND((pow(i / 255.0, 1.0 / image_gamma) * 65535.0));
  76             green[i] = ROUND((pow(i / 255.0, 1.0 / image_gamma) * 65535.0));
  77             blue[i] = ROUND((pow(i / 255.0, 1.0 / image_gamma) * 65535.0));
  78         }
  79     }
  80     refblackwhite[0] = 0.0; refblackwhite[1] = 255.0;
  81     refblackwhite[2] = 0.0; refblackwhite[3] = 255.0;
  82     refblackwhite[4] = 0.0; refblackwhite[5] = 255.0;
  83
  84     if ((tif = TIFFOpen(input_file, "w")) == NULL) {
  85         fprintf(stderr, "can't open %s as a TIFF file\n", input_file);
  86         exit(0);
  87     }
  88
  89     TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, WIDTH);
  90     TIFFSetField(tif, TIFFTAG_IMAGELENGTH, HEIGHT);
  91     TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8);
  92     TIFFSetField(tif, TIFFTAG_COMPRESSION, COMPRESSION_NONE);
  93     TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
  94     TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 3);
  95     TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, 1);
  96     TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
  97     TIFFSetField(tif, TIFFTAG_RESOLUTIONUNIT, RESUNIT_NONE);
  98 #ifdef notdef
  99     TIFFSetField(tif, TIFFTAG_WHITEPOINT, whitex, whitey);
 100     TIFFSetField(tif, TIFFTAG_PRIMARYCHROMATICITIES, primaries);
 101 #endif
 102     TIFFSetField(tif, TIFFTAG_REFERENCEBLACKWHITE, refblackwhite);
 103     TIFFSetField(tif, TIFFTAG_TRANSFERFUNCTION, red, green, blue);
 104
 105     scan_line = (unsigned char *) malloc(WIDTH * 3);
 106
 107     for (i = 0; i < 255; i++) {
 108         for (j = 0; j < 75; j++) {
 109              scan_line[j * 3] = 255;
 110              scan_line[(j * 3) + 1] = 255 - i;
 111              scan_line[(j * 3) + 2] = 255 - i;
 112         }
 113         for (j = 75; j < 150; j++) {
 114              scan_line[j * 3] = 255 - i;
 115              scan_line[(j * 3) + 1] = 255;
 116              scan_line[(j * 3) + 2] = 255 - i;
 117         }
 118         for (j = 150; j < 225; j++) {
 119              scan_line[j * 3] = 255 - i;
 120              scan_line[(j * 3) + 1] = 255 - i;
 121              scan_line[(j * 3) + 2] = 255;
 122         }
 123         for (j = 225; j < 300; j++) {
 124              scan_line[j * 3] = (i - 1) / 2;
 125              scan_line[(j * 3) + 1] = (i - 1) / 2;
 126              scan_line[(j * 3) + 2] = (i - 1) / 2;
 127         }
 128         for (j = 300; j < 375; j++) {
 129              scan_line[j * 3] = 255 - i;
 130              scan_line[(j * 3) + 1] = 255;
 131              scan_line[(j * 3) + 2] = 255;
 132         }
 133         for (j = 375; j < 450; j++) {
 134              scan_line[j * 3] = 255;
 135              scan_line[(j * 3) + 1] = 255 - i;
 136              scan_line[(j * 3) + 2] = 255;
 137         }
 138         for (j = 450; j < 525; j++) {
 139              scan_line[j * 3] = 255;
 140              scan_line[(j * 3) + 1] = 255;
 141              scan_line[(j * 3) + 2] = 255 - i;
 142         }
 143         TIFFWriteScanline(tif, scan_line, i, 0);
 144     }
 145     for (i = 255; i < 512; i++) {
 146         for (j = 0; j < 75; j++) {
 147              scan_line[j * 3] = i;
 148              scan_line[(j * 3) + 1] = 0;
 149              scan_line[(j * 3) + 2] = 0;
 150         }
 151         for (j = 75; j < 150; j++) {
 152              scan_line[j * 3] = 0;
 153              scan_line[(j * 3) + 1] = i;
 154              scan_line[(j * 3) + 2] = 0;
 155         }
 156         for (j = 150; j < 225; j++) {
 157              scan_line[j * 3] = 0;
 158              scan_line[(j * 3) + 1] = 0;
 159              scan_line[(j * 3) + 2] = i;
 160         }
 161         for (j = 225; j < 300; j++) {
 162              scan_line[j * 3] = (i - 1) / 2;
 163              scan_line[(j * 3) + 1] = (i - 1) / 2;
 164              scan_line[(j * 3) + 2] = (i - 1) / 2;
 165         }
 166         for (j = 300; j < 375; j++) {
 167              scan_line[j * 3] = 0;
 168              scan_line[(j * 3) + 1] = i;
 169              scan_line[(j * 3) + 2] = i;
 170         }
 171         for (j = 375; j < 450; j++) {
 172              scan_line[j * 3] = i;
 173              scan_line[(j * 3) + 1] = 0;
 174              scan_line[(j * 3) + 2] = i;
 175         }
 176         for (j = 450; j < 525; j++) {
 177              scan_line[j * 3] = i;
 178              scan_line[(j * 3) + 1] = i;
 179              scan_line[(j * 3) + 2] = 0;
 180         }
 181         TIFFWriteScanline(tif, scan_line, i, 0);
 182     }
 183
 184     free(scan_line);
 185     TIFFClose(tif);
 186     exit(0);
 187 }
 188
 189 void
 190 Usage()
 191 {
 192     fprintf(stderr, "Usage: %s -gamma gamma tiff-image\n", programName);
 193     exit(0);
 194 }
 195 /*
 196  * Local Variables:
 197  * mode: c
 198  * c-basic-offset: 8
 199  * fill-column: 78
 200  * End:
 201  */