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remove always-true tests of unsigned >= 0
[wxWidgets.git] / src / tiff / tools / sgi2tiff.c
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1/* $Id$ */
2
3/*
4 * Copyright (c) 1991-1997 Sam Leffler
5 * Copyright (c) 1991-1997 Silicon Graphics, Inc.
6 *
7 * Permission to use, copy, modify, distribute, and sell this software and
8 * its documentation for any purpose is hereby granted without fee, provided
9 * that (i) the above copyright notices and this permission notice appear in
10 * all copies of the software and related documentation, and (ii) the names of
11 * Sam Leffler and Silicon Graphics may not be used in any advertising or
12 * publicity relating to the software without the specific, prior written
13 * permission of Sam Leffler and Silicon Graphics.
14 *
15 * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
17 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
18 *
19 * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
20 * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
21 * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
22 * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
23 * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
24 * OF THIS SOFTWARE.
25 */
26
27#include <stdio.h>
28#include <stdlib.h>
29#include <string.h>
30#include <gl/image.h>
31#include <ctype.h>
32
33#include "tiffio.h"
34
35#define streq(a,b) (strcmp(a,b) == 0)
36#define strneq(a,b,n) (strncmp(a,b,n) == 0)
37
38static short config = PLANARCONFIG_CONTIG;
39static uint16 compression = COMPRESSION_PACKBITS;
40static uint16 predictor = 0;
41static uint16 fillorder = 0;
42static uint32 rowsperstrip = (uint32) -1;
43static int jpegcolormode = JPEGCOLORMODE_RGB;
44static int quality = 75; /* JPEG quality */
45static uint16 photometric;
46
47static void usage(void);
48static int cpContig(IMAGE*, TIFF*);
49static int cpSeparate(IMAGE*, TIFF*);
50static int processCompressOptions(char*);
51
52/* XXX image library has no prototypes */
53extern IMAGE* iopen(const char*, const char*);
54extern void iclose(IMAGE*);
55extern void getrow(IMAGE*, short*, int, int);
56
57int
58main(int argc, char* argv[])
59{
60 IMAGE *in;
61 TIFF *out;
62 int c;
63 extern int optind;
64 extern char* optarg;
65
66 while ((c = getopt(argc, argv, "c:p:r:")) != -1)
67 switch (c) {
68 case 'c': /* compression scheme */
69 if (!processCompressOptions(optarg))
70 usage();
71 break;
72 case 'f': /* fill order */
73 if (streq(optarg, "lsb2msb"))
74 fillorder = FILLORDER_LSB2MSB;
75 else if (streq(optarg, "msb2lsb"))
76 fillorder = FILLORDER_MSB2LSB;
77 else
78 usage();
79 break;
80 case 'p': /* planar configuration */
81 if (streq(optarg, "separate"))
82 config = PLANARCONFIG_SEPARATE;
83 else if (streq(optarg, "contig"))
84 config = PLANARCONFIG_CONTIG;
85 else
86 usage();
87 break;
88 case 'r': /* rows/strip */
89 rowsperstrip = atoi(optarg);
90 break;
91 case '?':
92 usage();
93 /*NOTREACHED*/
94 }
95 if (argc - optind != 2)
96 usage();
97 in = iopen(argv[optind], "r");
98 if (in == NULL)
99 return (-1);
100 out = TIFFOpen(argv[optind+1], "w");
101 if (out == NULL)
102 return (-2);
103 TIFFSetField(out, TIFFTAG_IMAGEWIDTH, (uint32) in->xsize);
104 TIFFSetField(out, TIFFTAG_IMAGELENGTH, (uint32) in->ysize);
105 TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, 8);
106 TIFFSetField(out, TIFFTAG_COMPRESSION, compression);
107 if (in->zsize == 1)
108 photometric = PHOTOMETRIC_MINISBLACK;
109 else
110 photometric = PHOTOMETRIC_RGB;
111 switch (compression) {
112 case COMPRESSION_JPEG:
113 if (photometric == PHOTOMETRIC_RGB && jpegcolormode == JPEGCOLORMODE_RGB)
114 photometric = PHOTOMETRIC_YCBCR;
115 TIFFSetField(out, TIFFTAG_JPEGQUALITY, quality);
116 TIFFSetField(out, TIFFTAG_JPEGCOLORMODE, jpegcolormode);
117 break;
118 case COMPRESSION_LZW:
119 case COMPRESSION_DEFLATE:
120 if (predictor != 0)
121 TIFFSetField(out, TIFFTAG_PREDICTOR, predictor);
122 break;
123 }
124 TIFFSetField(out, TIFFTAG_PHOTOMETRIC, photometric);
125 if (fillorder != 0)
126 TIFFSetField(out, TIFFTAG_FILLORDER, fillorder);
127 TIFFSetField(out, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
128 TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, in->zsize);
129 if (in->zsize > 3) {
130 uint16 v[1];
131 v[0] = EXTRASAMPLE_UNASSALPHA;
132 TIFFSetField(out, TIFFTAG_EXTRASAMPLES, 1, v);
133 }
134 TIFFSetField(out, TIFFTAG_MINSAMPLEVALUE, (uint16) in->min);
135 TIFFSetField(out, TIFFTAG_MAXSAMPLEVALUE, (uint16) in->max);
136 TIFFSetField(out, TIFFTAG_PLANARCONFIG, config);
137 if (config != PLANARCONFIG_SEPARATE)
138 TIFFSetField(out, TIFFTAG_ROWSPERSTRIP,
139 TIFFDefaultStripSize(out, rowsperstrip));
140 else /* force 1 row/strip for library limitation */
141 TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, 1L);
142 if (in->name[0] != '\0')
143 TIFFSetField(out, TIFFTAG_IMAGEDESCRIPTION, in->name);
144 if (config == PLANARCONFIG_CONTIG)
145 cpContig(in, out);
146 else
147 cpSeparate(in, out);
148 (void) iclose(in);
149 (void) TIFFClose(out);
150 return (0);
151}
152
153static int
154processCompressOptions(char* opt)
155{
156 if (streq(opt, "none"))
157 compression = COMPRESSION_NONE;
158 else if (streq(opt, "packbits"))
159 compression = COMPRESSION_PACKBITS;
160 else if (strneq(opt, "jpeg", 4)) {
161 char* cp = strchr(opt, ':');
162
163 defcompression = COMPRESSION_JPEG;
164 while( cp )
165 {
166 if (isdigit((int)cp[1]))
167 quality = atoi(cp+1);
168 else if (cp[1] == 'r' )
169 jpegcolormode = JPEGCOLORMODE_RAW;
170 else
171 usage();
172
173 cp = strchr(cp+1,':');
174 }
175 } else if (strneq(opt, "lzw", 3)) {
176 char* cp = strchr(opt, ':');
177 if (cp)
178 predictor = atoi(cp+1);
179 compression = COMPRESSION_LZW;
180 } else if (strneq(opt, "zip", 3)) {
181 char* cp = strchr(opt, ':');
182 if (cp)
183 predictor = atoi(cp+1);
184 compression = COMPRESSION_DEFLATE;
185 } else
186 return (0);
187 return (1);
188}
189
190static int
191cpContig(IMAGE* in, TIFF* out)
192{
193 tdata_t buf = _TIFFmalloc(TIFFScanlineSize(out));
194 short *r = NULL;
195 int x, y;
196
197 if (in->zsize == 3) {
198 short *g, *b;
199
200 r = (short *)_TIFFmalloc(3 * in->xsize * sizeof (short));
201 g = r + in->xsize;
202 b = g + in->xsize;
203 for (y = in->ysize-1; y >= 0; y--) {
204 uint8* pp = (uint8*) buf;
205
206 getrow(in, r, y, 0);
207 getrow(in, g, y, 1);
208 getrow(in, b, y, 2);
209 for (x = 0; x < in->xsize; x++) {
210 pp[0] = r[x];
211 pp[1] = g[x];
212 pp[2] = b[x];
213 pp += 3;
214 }
215 if (TIFFWriteScanline(out, buf, in->ysize-y-1, 0) < 0)
216 goto bad;
217 }
218 } else if (in->zsize == 4) {
219 short *g, *b, *a;
220
221 r = (short *)_TIFFmalloc(4 * in->xsize * sizeof (short));
222 g = r + in->xsize;
223 b = g + in->xsize;
224 a = b + in->xsize;
225 for (y = in->ysize-1; y >= 0; y--) {
226 uint8* pp = (uint8*) buf;
227
228 getrow(in, r, y, 0);
229 getrow(in, g, y, 1);
230 getrow(in, b, y, 2);
231 getrow(in, a, y, 3);
232 for (x = 0; x < in->xsize; x++) {
233 pp[0] = r[x];
234 pp[1] = g[x];
235 pp[2] = b[x];
236 pp[3] = a[x];
237 pp += 4;
238 }
239 if (TIFFWriteScanline(out, buf, in->ysize-y-1, 0) < 0)
240 goto bad;
241 }
242 } else {
243 uint8* pp = (uint8*) buf;
244
245 r = (short *)_TIFFmalloc(in->xsize * sizeof (short));
246 for (y = in->ysize-1; y >= 0; y--) {
247 getrow(in, r, y, 0);
248 for (x = in->xsize-1; x >= 0; x--)
249 pp[x] = r[x];
250 if (TIFFWriteScanline(out, buf, in->ysize-y-1, 0) < 0)
251 goto bad;
252 }
253 }
254 if (r)
255 _TIFFfree(r);
256 _TIFFfree(buf);
257 return (1);
258bad:
259 if (r)
260 _TIFFfree(r);
261 _TIFFfree(buf);
262 return (0);
263}
264
265static int
266cpSeparate(IMAGE* in, TIFF* out)
267{
268 tdata_t buf = _TIFFmalloc(TIFFScanlineSize(out));
269 short *r = (short *)_TIFFmalloc(in->xsize * sizeof (short));
270 uint8* pp = (uint8*) buf;
271 int x, y, z;
272
273 for (z = 0; z < in->zsize; z++) {
274 for (y = in->ysize-1; y >= 0; y--) {
275 getrow(in, r, y, z);
276 for (x = 0; x < in->xsize; x++)
277 pp[x] = r[x];
278 if (TIFFWriteScanline(out, buf, in->ysize-y-1, z) < 0)
279 goto bad;
280 }
281 }
282 _TIFFfree(r);
283 _TIFFfree(buf);
284 return (1);
285bad:
286 _TIFFfree(r);
287 _TIFFfree(buf);
288 return (0);
289}
290
291char* stuff[] = {
292"usage: sgi2tiff [options] input.rgb output.tif",
293"where options are:",
294" -r # make each strip have no more than # rows",
295"",
296" -p contig pack samples contiguously (e.g. RGBRGB...)",
297" -p separate store samples separately (e.g. RRR...GGG...BBB...)",
298"",
299" -f lsb2msb force lsb-to-msb FillOrder for output",
300" -f msb2lsb force msb-to-lsb FillOrder for output",
301"",
302" -c lzw[:opts] compress output with Lempel-Ziv & Welch encoding",
303" -c zip[:opts] compress output with deflate encoding",
304" -c jpeg[:opts]compress output with JPEG encoding",
305" -c packbits compress output with packbits encoding",
306" -c none use no compression algorithm on output",
307"",
308"JPEG options:",
309" # set compression quality level (0-100, default 75)",
310" r output color image as RGB rather than YCbCr",
311"",
312"LZW and deflate options:",
313" # set predictor value",
314"For example, -c lzw:2 to get LZW-encoded data with horizontal differencing",
315NULL
316};
317
318static void
319usage(void)
320{
321 char buf[BUFSIZ];
322 int i;
323
324 setbuf(stderr, buf);
325 for (i = 0; stuff[i] != NULL; i++)
326 fprintf(stderr, "%s\n", stuff[i]);
327 exit(-1);
328}