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8414a40c VZ |
1 | |
2 | /* | |
3 | * tiff-rgb.c -- create a 24-bit Class R (rgb) TIFF file | |
4 | * | |
5 | * Copyright 1990 by Digital Equipment Corporation, Maynard, Massachusetts. | |
6 | * | |
7 | * All Rights Reserved | |
8 | * | |
9 | * Permission to use, copy, modify, and distribute this software and its | |
10 | * documentation for any purpose and without fee is hereby granted, | |
11 | * provided that the above copyright notice appear in all copies and that | |
12 | * both that copyright notice and this permission notice appear in | |
13 | * supporting documentation, and that the name of Digital not be | |
14 | * used in advertising or publicity pertaining to distribution of the | |
15 | * software without specific, written prior permission. | |
16 | * | |
17 | * DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING | |
18 | * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL | |
19 | * DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR | |
20 | * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, | |
21 | * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, | |
22 | * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS | |
23 | * SOFTWARE. | |
24 | */ | |
25 | ||
26 | #include <math.h> | |
27 | #include <stdio.h> | |
28 | #include <stdlib.h> | |
29 | #include <string.h> | |
30 | ||
31 | #include "tiffio.h" | |
32 | ||
33 | #define ROUND(x) (uint16) ((x) + 0.5) | |
34 | #define CMSIZE 256 | |
35 | #define WIDTH 525 | |
36 | #define HEIGHT 512 | |
37 | #define TIFF_GAMMA 2.2 | |
38 | ||
39 | void Usage(); | |
40 | char * programName; | |
41 | ||
42 | int main(int argc, char **argv) | |
43 | { | |
44 | char * input_file = NULL; | |
45 | double image_gamma = TIFF_GAMMA; | |
46 | int i, j; | |
47 | TIFF * tif; | |
48 | unsigned char * scan_line; | |
49 | uint16 red[CMSIZE], green[CMSIZE], blue[CMSIZE]; | |
50 | float refblackwhite[2*3]; | |
51 | ||
52 | programName = argv[0]; | |
53 | ||
54 | switch (argc) { | |
55 | case 2: | |
56 | image_gamma = TIFF_GAMMA; | |
57 | input_file = argv[1]; | |
58 | break; | |
59 | case 4: | |
60 | if (!strcmp(argv[1], "-gamma")) { | |
61 | image_gamma = atof(argv[2]); | |
62 | input_file = argv[3]; | |
63 | } else | |
64 | Usage(); | |
65 | break; | |
66 | default: | |
67 | Usage(); | |
68 | } | |
69 | ||
70 | for (i = 0; i < CMSIZE; i++) { | |
71 | if (i == 0) | |
72 | red[i] = green[i] = blue[i] = 0; | |
73 | else { | |
74 | red[i] = ROUND((pow(i / 255.0, 1.0 / image_gamma) * 65535.0)); | |
75 | green[i] = ROUND((pow(i / 255.0, 1.0 / image_gamma) * 65535.0)); | |
76 | blue[i] = ROUND((pow(i / 255.0, 1.0 / image_gamma) * 65535.0)); | |
77 | } | |
78 | } | |
79 | refblackwhite[0] = 0.0; refblackwhite[1] = 255.0; | |
80 | refblackwhite[2] = 0.0; refblackwhite[3] = 255.0; | |
81 | refblackwhite[4] = 0.0; refblackwhite[5] = 255.0; | |
82 | ||
83 | if ((tif = TIFFOpen(input_file, "w")) == NULL) { | |
84 | fprintf(stderr, "can't open %s as a TIFF file\n", input_file); | |
85 | exit(0); | |
86 | } | |
87 | ||
88 | TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, WIDTH); | |
89 | TIFFSetField(tif, TIFFTAG_IMAGELENGTH, HEIGHT); | |
90 | TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8); | |
91 | TIFFSetField(tif, TIFFTAG_COMPRESSION, COMPRESSION_NONE); | |
92 | TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB); | |
93 | TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 3); | |
94 | TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, 1); | |
95 | TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG); | |
96 | TIFFSetField(tif, TIFFTAG_RESOLUTIONUNIT, RESUNIT_NONE); | |
97 | #ifdef notdef | |
98 | TIFFSetField(tif, TIFFTAG_WHITEPOINT, whitex, whitey); | |
99 | TIFFSetField(tif, TIFFTAG_PRIMARYCHROMATICITIES, primaries); | |
100 | #endif | |
101 | TIFFSetField(tif, TIFFTAG_REFERENCEBLACKWHITE, refblackwhite); | |
102 | TIFFSetField(tif, TIFFTAG_TRANSFERFUNCTION, red, green, blue); | |
103 | ||
104 | scan_line = (unsigned char *) malloc(WIDTH * 3); | |
105 | ||
106 | for (i = 0; i < 255; i++) { | |
107 | for (j = 0; j < 75; j++) { | |
108 | scan_line[j * 3] = 255; | |
109 | scan_line[(j * 3) + 1] = 255 - i; | |
110 | scan_line[(j * 3) + 2] = 255 - i; | |
111 | } | |
112 | for (j = 75; j < 150; j++) { | |
113 | scan_line[j * 3] = 255 - i; | |
114 | scan_line[(j * 3) + 1] = 255; | |
115 | scan_line[(j * 3) + 2] = 255 - i; | |
116 | } | |
117 | for (j = 150; j < 225; j++) { | |
118 | scan_line[j * 3] = 255 - i; | |
119 | scan_line[(j * 3) + 1] = 255 - i; | |
120 | scan_line[(j * 3) + 2] = 255; | |
121 | } | |
122 | for (j = 225; j < 300; j++) { | |
123 | scan_line[j * 3] = (i - 1) / 2; | |
124 | scan_line[(j * 3) + 1] = (i - 1) / 2; | |
125 | scan_line[(j * 3) + 2] = (i - 1) / 2; | |
126 | } | |
127 | for (j = 300; j < 375; j++) { | |
128 | scan_line[j * 3] = 255 - i; | |
129 | scan_line[(j * 3) + 1] = 255; | |
130 | scan_line[(j * 3) + 2] = 255; | |
131 | } | |
132 | for (j = 375; j < 450; j++) { | |
133 | scan_line[j * 3] = 255; | |
134 | scan_line[(j * 3) + 1] = 255 - i; | |
135 | scan_line[(j * 3) + 2] = 255; | |
136 | } | |
137 | for (j = 450; j < 525; j++) { | |
138 | scan_line[j * 3] = 255; | |
139 | scan_line[(j * 3) + 1] = 255; | |
140 | scan_line[(j * 3) + 2] = 255 - i; | |
141 | } | |
142 | TIFFWriteScanline(tif, scan_line, i, 0); | |
143 | } | |
144 | for (i = 255; i < 512; i++) { | |
145 | for (j = 0; j < 75; j++) { | |
146 | scan_line[j * 3] = i; | |
147 | scan_line[(j * 3) + 1] = 0; | |
148 | scan_line[(j * 3) + 2] = 0; | |
149 | } | |
150 | for (j = 75; j < 150; j++) { | |
151 | scan_line[j * 3] = 0; | |
152 | scan_line[(j * 3) + 1] = i; | |
153 | scan_line[(j * 3) + 2] = 0; | |
154 | } | |
155 | for (j = 150; j < 225; j++) { | |
156 | scan_line[j * 3] = 0; | |
157 | scan_line[(j * 3) + 1] = 0; | |
158 | scan_line[(j * 3) + 2] = i; | |
159 | } | |
160 | for (j = 225; j < 300; j++) { | |
161 | scan_line[j * 3] = (i - 1) / 2; | |
162 | scan_line[(j * 3) + 1] = (i - 1) / 2; | |
163 | scan_line[(j * 3) + 2] = (i - 1) / 2; | |
164 | } | |
165 | for (j = 300; j < 375; j++) { | |
166 | scan_line[j * 3] = 0; | |
167 | scan_line[(j * 3) + 1] = i; | |
168 | scan_line[(j * 3) + 2] = i; | |
169 | } | |
170 | for (j = 375; j < 450; j++) { | |
171 | scan_line[j * 3] = i; | |
172 | scan_line[(j * 3) + 1] = 0; | |
173 | scan_line[(j * 3) + 2] = i; | |
174 | } | |
175 | for (j = 450; j < 525; j++) { | |
176 | scan_line[j * 3] = i; | |
177 | scan_line[(j * 3) + 1] = i; | |
178 | scan_line[(j * 3) + 2] = 0; | |
179 | } | |
180 | TIFFWriteScanline(tif, scan_line, i, 0); | |
181 | } | |
182 | ||
183 | free(scan_line); | |
184 | TIFFClose(tif); | |
185 | exit(0); | |
186 | } | |
187 | ||
188 | void | |
189 | Usage() | |
190 | { | |
191 | fprintf(stderr, "Usage: %s -gamma gamma tiff-image\n", programName); | |
192 | exit(0); | |
193 | } | |
80ed523f VZ |
194 | /* |
195 | * Local Variables: | |
196 | * mode: c | |
197 | * c-basic-offset: 8 | |
198 | * fill-column: 78 | |
199 | * End: | |
200 | */ |