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1 | #ifndef lint |
2 | static char id[] = "$Id$"; | |
3 | #endif | |
4 | /*- | |
5 | * tif2ras.c - Converts from a Tagged Image File Format image to a Sun Raster. | |
6 | * | |
7 | * Copyright (c) 1990 by Sun Microsystems, Inc. | |
8 | * | |
9 | * Author: Patrick J. Naughton | |
10 | * naughton@wind.sun.com | |
11 | * | |
12 | * Permission to use, copy, modify, and distribute this software and its | |
13 | * documentation for any purpose and without fee is hereby granted, | |
14 | * provided that the above copyright notice appear in all copies and that | |
15 | * both that copyright notice and this permission notice appear in | |
16 | * supporting documentation. | |
17 | * | |
18 | * This file is provided AS IS with no warranties of any kind. The author | |
19 | * shall have no liability with respect to the infringement of copyrights, | |
20 | * trade secrets or any patents by this file or any part thereof. In no | |
21 | * event will the author be liable for any lost revenue or profits or | |
22 | * other special, indirect and consequential damages. | |
23 | * | |
24 | * Comments and additions should be sent to the author: | |
25 | * | |
26 | * Patrick J. Naughton | |
27 | * Sun Microsystems | |
28 | * 2550 Garcia Ave, MS 14-40 | |
29 | * Mountain View, CA 94043 | |
30 | * (415) 336-1080 | |
31 | * | |
32 | * Revision History: | |
33 | * 10-Jan-89: Created. | |
34 | * 06-Mar-90: Change to byte encoded rasterfiles. | |
35 | * fix bug in call to ReadScanline(). | |
36 | * fix bug in CVT() macro. | |
37 | * fix assignment of td, (missing &). | |
38 | * | |
39 | * Description: | |
40 | * This program takes a MicroSoft/Aldus "Tagged Image File Format" image or | |
41 | * "TIFF" file as input and writes a Sun Rasterfile [see rasterfile(5)]. The | |
42 | * output file may be standard output, but the input TIFF file must be a real | |
43 | * file since seek(2) is used. | |
44 | */ | |
45 | ||
46 | #include <stdio.h> | |
47 | #include <pixrect/pixrect_hs.h> | |
48 | #include "tiffio.h" | |
49 | ||
50 | typedef int boolean; | |
51 | #define True (1) | |
52 | #define False (0) | |
53 | #define CVT(x) (((x) * 255) / ((1L<<16)-1)) | |
54 | ||
55 | boolean Verbose = False; | |
56 | char *pname; /* program name (used for error messages) */ | |
57 | ||
58 | void | |
59 | error(s1, s2) | |
60 | char *s1, | |
61 | *s2; | |
62 | { | |
63 | fprintf(stderr, s1, pname, s2); | |
64 | exit(1); | |
65 | } | |
66 | ||
67 | void | |
68 | usage() | |
69 | { | |
70 | error("usage: %s -[vq] TIFFfile [rasterfile]\n", NULL); | |
71 | } | |
72 | ||
73 | ||
74 | main(argc, argv) | |
75 | int argc; | |
76 | char *argv[]; | |
77 | { | |
78 | char *inf = NULL; | |
79 | char *outf = NULL; | |
80 | FILE *fp; | |
81 | long width, | |
82 | height; | |
83 | int depth, | |
84 | numcolors; | |
85 | register TIFF *tif; | |
86 | TIFFDirectory *td; | |
87 | register u_char *inp, | |
88 | *outp; | |
89 | register int col, | |
90 | i; | |
91 | register long row; | |
92 | u_char *Map = NULL; | |
93 | u_char *buf; | |
94 | short bitspersample; | |
95 | short samplesperpixel; | |
96 | short photometric; | |
97 | u_short *redcolormap, | |
98 | *bluecolormap, | |
99 | *greencolormap; | |
100 | ||
101 | Pixrect *pix; /* The Sun Pixrect */ | |
102 | colormap_t Colormap; /* The Pixrect Colormap */ | |
103 | u_char red[256], | |
104 | green[256], | |
105 | blue[256]; | |
106 | ||
107 | setbuf(stderr, NULL); | |
108 | pname = argv[0]; | |
109 | ||
110 | while (--argc) { | |
111 | if ((++argv)[0][0] == '-') | |
112 | switch (argv[0][1]) { | |
113 | case 'v': | |
114 | Verbose = True; | |
115 | break; | |
116 | case 'q': | |
117 | usage(); | |
118 | break; | |
119 | default: | |
120 | fprintf(stderr, "%s: illegal option -%c.\n", pname, | |
121 | argv[0][1]); | |
122 | exit(1); | |
123 | } | |
124 | else if (inf == NULL) | |
125 | inf = argv[0]; | |
126 | else if (outf == NULL) | |
127 | outf = argv[0]; | |
128 | else | |
129 | usage(); | |
130 | ||
131 | } | |
132 | ||
133 | if (inf == NULL) | |
134 | error("%s: can't read input file from a stream.\n", NULL); | |
135 | ||
136 | if (Verbose) | |
137 | fprintf(stderr, "Reading %s...", inf); | |
138 | ||
139 | tif = TIFFOpen(inf, "r"); | |
140 | ||
141 | if (tif == NULL) | |
142 | error("%s: error opening TIFF file %s", inf); | |
143 | ||
144 | if (Verbose) | |
145 | TIFFPrintDirectory(tif, stderr, True, False, False); | |
146 | TIFFGetField(tif, TIFFTAG_BITSPERSAMPLE, &bitspersample); | |
147 | if (bitspersample > 8) | |
148 | error("%s: can't handle more than 8-bits per sample\n", NULL); | |
149 | ||
150 | TIFFGetField(tif, TIFFTAG_SAMPLESPERPIXEL, &samplesperpixel); | |
151 | switch (samplesperpixel) { | |
152 | case 1: | |
153 | if (bitspersample == 1) | |
154 | depth = 1; | |
155 | else | |
156 | depth = 8; | |
157 | break; | |
158 | case 3: | |
159 | case 4: | |
160 | depth = 24; | |
161 | break; | |
162 | default: | |
163 | error("%s: only handle 1-channel gray scale or 3-channel color\n"); | |
164 | } | |
165 | ||
166 | TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &width); | |
167 | TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &height); | |
168 | ||
169 | if (Verbose) | |
170 | fprintf(stderr, "%dx%dx%d image, ", width, height, depth); | |
171 | if (Verbose) | |
172 | fprintf(stderr, "%d bits/sample, %d samples/pixel, ", | |
173 | bitspersample, samplesperpixel); | |
174 | ||
175 | pix = mem_create(width, height, depth); | |
176 | if (pix == (Pixrect *) NULL) | |
177 | error("%s: can't allocate memory for output pixrect...\n", NULL); | |
178 | ||
179 | numcolors = (1 << bitspersample); | |
180 | ||
181 | TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &photometric); | |
182 | if (numcolors == 2) { | |
183 | if (Verbose) | |
184 | fprintf(stderr, "monochrome "); | |
185 | Colormap.type = RMT_NONE; | |
186 | Colormap.length = 0; | |
187 | Colormap.map[0] = Colormap.map[1] = Colormap.map[2] = NULL; | |
188 | } else { | |
189 | switch (photometric) { | |
190 | case PHOTOMETRIC_MINISBLACK: | |
191 | if (Verbose) | |
192 | fprintf(stderr, "%d graylevels (min=black), ", numcolors); | |
193 | Map = (u_char *) malloc(numcolors * sizeof(u_char)); | |
194 | for (i = 0; i < numcolors; i++) | |
195 | Map[i] = (255 * i) / numcolors; | |
196 | Colormap.type = RMT_EQUAL_RGB; | |
197 | Colormap.length = numcolors; | |
198 | Colormap.map[0] = Colormap.map[1] = Colormap.map[2] = Map; | |
199 | break; | |
200 | case PHOTOMETRIC_MINISWHITE: | |
201 | if (Verbose) | |
202 | fprintf(stderr, "%d graylevels (min=white), ", numcolors); | |
203 | Map = (u_char *) malloc(numcolors * sizeof(u_char)); | |
204 | for (i = 0; i < numcolors; i++) | |
205 | Map[i] = 255 - ((255 * i) / numcolors); | |
206 | Colormap.type = RMT_EQUAL_RGB; | |
207 | Colormap.length = numcolors; | |
208 | Colormap.map[0] = Colormap.map[1] = Colormap.map[2] = Map; | |
209 | break; | |
210 | case PHOTOMETRIC_RGB: | |
211 | if (Verbose) | |
212 | fprintf(stderr, "truecolor "); | |
213 | Colormap.type = RMT_NONE; | |
214 | Colormap.length = 0; | |
215 | Colormap.map[0] = Colormap.map[1] = Colormap.map[2] = NULL; | |
216 | break; | |
217 | case PHOTOMETRIC_PALETTE: | |
218 | if (Verbose) | |
219 | fprintf(stderr, "colormapped "); | |
220 | Colormap.type = RMT_EQUAL_RGB; | |
221 | Colormap.length = numcolors; | |
222 | memset(red, 0, sizeof(red)); | |
223 | memset(green, 0, sizeof(green)); | |
224 | memset(blue, 0, sizeof(blue)); | |
225 | TIFFGetField(tif, TIFFTAG_COLORMAP, | |
226 | &redcolormap, &greencolormap, &bluecolormap); | |
227 | for (i = 0; i < numcolors; i++) { | |
228 | red[i] = (u_char) CVT(redcolormap[i]); | |
229 | green[i] = (u_char) CVT(greencolormap[i]); | |
230 | blue[i] = (u_char) CVT(bluecolormap[i]); | |
231 | } | |
232 | Colormap.map[0] = red; | |
233 | Colormap.map[1] = green; | |
234 | Colormap.map[2] = blue; | |
235 | break; | |
236 | case PHOTOMETRIC_MASK: | |
237 | error("%s: Don't know how to handle PHOTOMETRIC_MASK\n"); | |
238 | break; | |
239 | case PHOTOMETRIC_DEPTH: | |
240 | error("%s: Don't know how to handle PHOTOMETRIC_DEPTH\n"); | |
241 | break; | |
242 | default: | |
243 | error("%s: unknown photometric (cmap): %d\n", photometric); | |
244 | } | |
245 | } | |
246 | ||
247 | buf = (u_char *) malloc(TIFFScanlineSize(tif)); | |
248 | if (buf == NULL) | |
249 | error("%s: can't allocate memory for scanline buffer...\n", NULL); | |
250 | ||
251 | for (row = 0; row < height; row++) { | |
252 | if (TIFFReadScanline(tif, buf, row, 0) < 0) | |
253 | error("%s: bad data read on line: %d\n", row); | |
254 | inp = buf; | |
255 | outp = (u_char *) mprd_addr(mpr_d(pix), 0, row); | |
256 | switch (photometric) { | |
257 | case PHOTOMETRIC_RGB: | |
258 | if (samplesperpixel == 4) | |
259 | for (col = 0; col < width; col++) { | |
260 | *outp++ = *inp++; /* Blue */ | |
261 | *outp++ = *inp++; /* Green */ | |
262 | *outp++ = *inp++; /* Red */ | |
263 | inp++; /* skip alpha channel */ | |
264 | } | |
265 | else | |
266 | for (col = 0; col < width; col++) { | |
267 | *outp++ = *inp++; /* Blue */ | |
268 | *outp++ = *inp++; /* Green */ | |
269 | *outp++ = *inp++; /* Red */ | |
270 | } | |
271 | break; | |
272 | case PHOTOMETRIC_MINISWHITE: | |
273 | case PHOTOMETRIC_MINISBLACK: | |
274 | switch (bitspersample) { | |
275 | case 1: | |
276 | for (col = 0; col < ((width + 7) / 8); col++) | |
277 | *outp++ = *inp++; | |
278 | break; | |
279 | case 2: | |
280 | for (col = 0; col < ((width + 3) / 4); col++) { | |
281 | *outp++ = (*inp >> 6) & 3; | |
282 | *outp++ = (*inp >> 4) & 3; | |
283 | *outp++ = (*inp >> 2) & 3; | |
284 | *outp++ = *inp++ & 3; | |
285 | } | |
286 | break; | |
287 | case 4: | |
288 | for (col = 0; col < width / 2; col++) { | |
289 | *outp++ = *inp >> 4; | |
290 | *outp++ = *inp++ & 0xf; | |
291 | } | |
292 | break; | |
293 | case 8: | |
294 | for (col = 0; col < width; col++) | |
295 | *outp++ = *inp++; | |
296 | break; | |
297 | default: | |
298 | error("%s: bad bits/sample: %d\n", bitspersample); | |
299 | } | |
300 | break; | |
301 | case PHOTOMETRIC_PALETTE: | |
302 | memcpy(outp, inp, width); | |
303 | break; | |
304 | default: | |
305 | error("%s: unknown photometric (write): %d\n", photometric); | |
306 | } | |
307 | } | |
308 | ||
309 | free((char *) buf); | |
310 | ||
311 | if (Verbose) | |
312 | fprintf(stderr, "done.\n"); | |
313 | ||
314 | if (outf == NULL || strcmp(outf, "Standard Output") == 0) { | |
315 | outf = "Standard Output"; | |
316 | fp = stdout; | |
317 | } else { | |
318 | if (!(fp = fopen(outf, "w"))) | |
319 | error("%s: %s couldn't be opened for writing.\n", outf); | |
320 | } | |
321 | ||
322 | if (Verbose) | |
323 | fprintf(stderr, "Writing rasterfile in %s...", outf); | |
324 | ||
325 | if (pr_dump(pix, fp, &Colormap, RT_BYTE_ENCODED, 0) == PIX_ERR) | |
326 | error("%s: error writing Sun Rasterfile: %s\n", outf); | |
327 | ||
328 | if (Verbose) | |
329 | fprintf(stderr, "done.\n"); | |
330 | ||
331 | pr_destroy(pix); | |
332 | ||
333 | if (fp != stdout) | |
334 | fclose(fp); | |
335 | ||
336 | exit(0); | |
337 | } |