1 /* $Id: tiff-palette.c,v 1.5 2010-06-08 18:55:15 bfriesen Exp $ */
2
3 /*
4 * tiff-palette.c -- create a Class P (palette) 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 <stdio.h>
28 #include <stdlib.h>
29 #include <string.h>
30
31 #include "tiffio.h"
32
33 #define WIDTH 512
34 #define HEIGHT WIDTH
35 #define SCALE(x) ((x) * 257L)
36
37 char * programName;
38 void Usage();
39
main(int argc,char ** argv)40 int main(int argc, char **argv)
41 {
42 int bits_per_pixel = 8, cmsize, i, j, k,
43 cmap_index, chunk_size = 32, nchunks = 16;
44 unsigned char * scan_line;
45 uint16 *red, *green, *blue;
46 TIFF * tif;
47
48 programName = argv[0];
49
50 if (argc != 4)
51 Usage();
52
53 if (!strcmp(argv[1], "-depth"))
54 bits_per_pixel = atoi(argv[2]);
55 else
56 Usage();
57
58 switch (bits_per_pixel) {
59 case 8:
60 nchunks = 16;
61 chunk_size = 32;
62 break;
63 case 4:
64 nchunks = 4;
65 chunk_size = 128;
66 break;
67 case 2:
68 nchunks = 2;
69 chunk_size = 256;
70 break;
71 case 1:
72 nchunks = 2;
73 chunk_size = 256;
74 break;
75 default:
76 Usage();
77 }
78
79 if (bits_per_pixel != 1) {
80 cmsize = nchunks * nchunks;
81 } else {
82 cmsize = 2;
83 }
84 red = (uint16 *) malloc(cmsize * sizeof(uint16));
85 green = (uint16 *) malloc(cmsize * sizeof(uint16));
86 blue = (uint16 *) malloc(cmsize * sizeof(uint16));
87
88 switch (bits_per_pixel) {
89 case 8:
90 for (i = 0; i < cmsize; i++) {
91 if (i < 32)
92 red[i] = 0;
93 else if (i < 64)
94 red[i] = SCALE(36);
95 else if (i < 96)
96 red[i] = SCALE(73);
97 else if (i < 128)
98 red[i] = SCALE(109);
99 else if (i < 160)
100 red[i] = SCALE(146);
101 else if (i < 192)
102 red[i] = SCALE(182);
103 else if (i < 224)
104 red[i] = SCALE(219);
105 else if (i < 256)
106 red[i] = SCALE(255);
107
108 if ((i % 32) < 4)
109 green[i] = 0;
110 else if (i < 8)
111 green[i] = SCALE(36);
112 else if ((i % 32) < 12)
113 green[i] = SCALE(73);
114 else if ((i % 32) < 16)
115 green[i] = SCALE(109);
116 else if ((i % 32) < 20)
117 green[i] = SCALE(146);
118 else if ((i % 32) < 24)
119 green[i] = SCALE(182);
120 else if ((i % 32) < 28)
121 green[i] = SCALE(219);
122 else if ((i % 32) < 32)
123 green[i] = SCALE(255);
124
125 if ((i % 4) == 0)
126 blue[i] = SCALE(0);
127 else if ((i % 4) == 1)
128 blue[i] = SCALE(85);
129 else if ((i % 4) == 2)
130 blue[i] = SCALE(170);
131 else if ((i % 4) == 3)
132 blue[i] = SCALE(255);
133 }
134 break;
135 case 4:
136 red[0] = SCALE(255);
137 green[0] = 0;
138 blue[0] = 0;
139
140 red[1] = 0;
141 green[1] = SCALE(255);
142 blue[1] = 0;
143
144 red[2] = 0;
145 green[2] = 0;
146 blue[2] = SCALE(255);
147
148 red[3] = SCALE(255);
149 green[3] = SCALE(255);
150 blue[3] = SCALE(255);
151
152 red[4] = 0;
153 green[4] = SCALE(255);
154 blue[4] = SCALE(255);
155
156 red[5] = SCALE(255);
157 green[5] = 0;
158 blue[5] = SCALE(255);
159
160 red[6] = SCALE(255);
161 green[6] = SCALE(255);
162 blue[6] = 0;
163
164 red[7] = 0;
165 green[7] = 0;
166 blue[7] = 0;
167
168 red[8] = SCALE(176);
169 green[8] = SCALE(224);
170 blue[8] = SCALE(230);
171 red[9] = SCALE(100);
172 green[9] = SCALE(149);
173 blue[9] = SCALE(237);
174 red[10] = SCALE(46);
175 green[10] = SCALE(139);
176 blue[10] = SCALE(87);
177 red[11] = SCALE(160);
178 green[11] = SCALE(82);
179 blue[11] = SCALE(45);
180 red[12] = SCALE(238);
181 green[12] = SCALE(130);
182 blue[12] = SCALE(238);
183 red[13] = SCALE(176);
184 green[13] = SCALE(48);
185 blue[13] = SCALE(96);
186 red[14] = SCALE(50);
187 green[14] = SCALE(205);
188 blue[14] = SCALE(50);
189 red[15] = SCALE(240);
190 green[15] = SCALE(152);
191 blue[15] = SCALE(35);
192 break;
193 case 2:
194 red[0] = SCALE(255);
195 green[0] = 0;
196 blue[0] = 0;
197
198 red[1] = 0;
199 green[1] = SCALE(255);
200 blue[1] = 0;
201
202 red[2] = 0;
203 green[2] = 0;
204 blue[2] = SCALE(255);
205 red[3] = SCALE(255);
206 green[3] = SCALE(255);
207 blue[3] = SCALE(255);
208 break;
209 case 1:
210 red[0] = 0;
211 green[0] = 0;
212 blue[0] = 0;
213
214 red[1] = SCALE(255);
215 green[1] = SCALE(255);
216 blue[1] = SCALE(255);
217 break;
218 }
219
220 if ((tif = TIFFOpen(argv[3], "w")) == NULL) {
221 fprintf(stderr, "can't open %s as a TIFF file\n", argv[3]);
222 free(red);free(green);free(blue);
223 return 0;
224 }
225
226 TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, WIDTH);
227 TIFFSetField(tif, TIFFTAG_IMAGELENGTH, HEIGHT);
228 TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, bits_per_pixel);
229 TIFFSetField(tif, TIFFTAG_COMPRESSION, COMPRESSION_NONE);
230 TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_PALETTE);
231 TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 1);
232 TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, 1);
233 TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
234 TIFFSetField(tif, TIFFTAG_RESOLUTIONUNIT, RESUNIT_NONE);
235 TIFFSetField(tif, TIFFTAG_COLORMAP, red, green, blue);
236
237 scan_line = (unsigned char *) malloc(WIDTH / (8 / bits_per_pixel));
238
239 for (i = 0; i < HEIGHT; i++) {
240 for (j = 0, k = 0; j < WIDTH;) {
241 cmap_index = (j / chunk_size) + ((i / chunk_size) * nchunks);
242
243 switch (bits_per_pixel) {
244 case 8:
245 scan_line[k++] = cmap_index;
246 j++;
247 break;
248 case 4:
249 scan_line[k++] = (cmap_index << 4) + cmap_index;
250 j += 2;
251 break;
252 case 2:
253 scan_line[k++] = (cmap_index << 6) + (cmap_index << 4)
254 + (cmap_index << 2) + cmap_index;
255 j += 4;
256 break;
257 case 1:
258 scan_line[k++] =
259 ((j / chunk_size) == (i / chunk_size)) ? 0x00 : 0xff;
260 j += 8;
261 break;
262 }
263 }
264 TIFFWriteScanline(tif, scan_line, i, 0);
265 }
266
267 free(scan_line);
268 TIFFClose(tif);
269 return 0;
270 }
271
272 void
Usage()273 Usage()
274 {
275 fprintf(stderr, "Usage: %s -depth (8 | 4 | 2 | 1) tiff-image\n", programName);
276 exit(0);
277 }
278 /*
279 * Local Variables:
280 * mode: c
281 * c-basic-offset: 8
282 * fill-column: 78
283 * End:
284 */
285