xref: /libtiff-4.0.7/tools/tiffsplit.c (revision 9640ac31)
1 /* $Id: tiffsplit.c,v 1.13 2005-10-31 12:08:17 dron Exp $ */
2 
3 /*
4  * Copyright (c) 1992-1997 Sam Leffler
5  * Copyright (c) 1992-1997 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 "tif_config.h"
28 
29 #include <stdio.h>
30 #include <stdlib.h>
31 #include <string.h>
32 
33 #include "tiffio.h"
34 
35 #ifndef HAVE_GETOPT
36 extern int getopt(int, char**, char*);
37 #endif
38 
39 #define	CopyField(tag, v) \
40     if (TIFFGetField(in, tag, &v)) TIFFSetField(out, tag, v)
41 #define	CopyField2(tag, v1, v2) \
42     if (TIFFGetField(in, tag, &v1, &v2)) TIFFSetField(out, tag, v1, v2)
43 #define	CopyField3(tag, v1, v2, v3) \
44     if (TIFFGetField(in, tag, &v1, &v2, &v3)) TIFFSetField(out, tag, v1, v2, v3)
45 
46 static	char fname[1024+1];
47 
48 static	int tiffcp(TIFF*, TIFF*);
49 static	void newfilename(void);
50 static	int cpStrips(TIFF*, TIFF*);
51 static	int cpTiles(TIFF*, TIFF*);
52 
53 int
54 main(int argc, char* argv[])
55 {
56 	TIFF *in, *out;
57 
58 	if (argc < 2) {
59 		fprintf(stderr, "usage: tiffsplit input.tif [prefix]\n");
60 		return (-3);
61 	}
62 	if (argc > 2)
63 		strcpy(fname, argv[2]);
64 	in = TIFFOpen(argv[1], "r");
65 	if (in != NULL) {
66 		do {
67 			char path[1024+1];
68 			newfilename();
69 			strcpy(path, fname);
70 			strcat(path, ".tif");
71 			out = TIFFOpen(path, TIFFIsBigEndian(in)?"wb":"wl");
72 			if (out == NULL)
73 				return (-2);
74 			if (!tiffcp(in, out))
75 				return (-1);
76 			TIFFClose(out);
77 		} while (TIFFReadDirectory(in));
78 		(void) TIFFClose(in);
79 	}
80 	return (0);
81 }
82 
83 static void
84 newfilename(void)
85 {
86 	static int first = 1;
87 	static long lastTurn;
88 	static long fnum;
89 	static short defname;
90 	static char *fpnt;
91 
92 	if (first) {
93 		if (fname[0]) {
94 			fpnt = fname + strlen(fname);
95 			defname = 0;
96 		} else {
97 			fname[0] = 'x';
98 			fpnt = fname + 1;
99 			defname = 1;
100 		}
101 		first = 0;
102 	}
103 #define	MAXFILES	17576
104 	if (fnum == MAXFILES) {
105 		if (!defname || fname[0] == 'z') {
106 			fprintf(stderr, "tiffsplit: too many files.\n");
107 			exit(1);
108 		}
109 		fname[0]++;
110 		fnum = 0;
111 	}
112 	if (fnum % 676 == 0) {
113 		if (fnum != 0) {
114 			/*
115                          * advance to next letter every 676 pages
116 			 * condition for 'z'++ will be covered above
117                          */
118 			fpnt[0]++;
119 		} else {
120 			/*
121                          * set to 'a' if we are on the very first file
122                          */
123 			fpnt[0] = 'a';
124 		}
125 		/*
126                  * set the value of the last turning point
127                  */
128 		lastTurn = fnum;
129 	}
130 	/*
131          * start from 0 every 676 times (provided by lastTurn)
132          * this keeps us within a-z boundaries
133          */
134 	fpnt[1] = (char)((fnum - lastTurn) / 26) + 'a';
135 	/*
136          * cycle last letter every file, from a-z, then repeat
137          */
138 	fpnt[2] = (char)(fnum % 26) + 'a';
139 	fnum++;
140 }
141 
142 static int
143 tiffcp(TIFF* in, TIFF* out)
144 {
145 	uint16 bitspersample, samplesperpixel, compression, shortv, *shortav;
146 	uint32 w, l;
147 	float floatv;
148 	char *stringv;
149 	uint32 longv;
150 
151 	CopyField(TIFFTAG_SUBFILETYPE, longv);
152 	CopyField(TIFFTAG_TILEWIDTH, w);
153 	CopyField(TIFFTAG_TILELENGTH, l);
154 	CopyField(TIFFTAG_IMAGEWIDTH, w);
155 	CopyField(TIFFTAG_IMAGELENGTH, l);
156 	CopyField(TIFFTAG_BITSPERSAMPLE, bitspersample);
157 	CopyField(TIFFTAG_SAMPLESPERPIXEL, samplesperpixel);
158 	CopyField(TIFFTAG_COMPRESSION, compression);
159 	if (compression == COMPRESSION_JPEG) {
160 		uint16 count = 0;
161 		void *table = NULL;
162 		if (TIFFGetField(in, TIFFTAG_JPEGTABLES, &count, &table)
163 		    && count > 0 && table) {
164 		    TIFFSetField(out, TIFFTAG_JPEGTABLES, count, table);
165 		}
166 	}
167         CopyField(TIFFTAG_PHOTOMETRIC, shortv);
168 	CopyField(TIFFTAG_PREDICTOR, shortv);
169 	CopyField(TIFFTAG_THRESHHOLDING, shortv);
170 	CopyField(TIFFTAG_FILLORDER, shortv);
171 	CopyField(TIFFTAG_ORIENTATION, shortv);
172 	CopyField(TIFFTAG_MINSAMPLEVALUE, shortv);
173 	CopyField(TIFFTAG_MAXSAMPLEVALUE, shortv);
174 	CopyField(TIFFTAG_XRESOLUTION, floatv);
175 	CopyField(TIFFTAG_YRESOLUTION, floatv);
176 	CopyField(TIFFTAG_GROUP3OPTIONS, longv);
177 	CopyField(TIFFTAG_GROUP4OPTIONS, longv);
178 	CopyField(TIFFTAG_RESOLUTIONUNIT, shortv);
179 	CopyField(TIFFTAG_PLANARCONFIG, shortv);
180 	CopyField(TIFFTAG_ROWSPERSTRIP, longv);
181 	CopyField(TIFFTAG_XPOSITION, floatv);
182 	CopyField(TIFFTAG_YPOSITION, floatv);
183 	CopyField(TIFFTAG_IMAGEDEPTH, longv);
184 	CopyField(TIFFTAG_TILEDEPTH, longv);
185 	CopyField(TIFFTAG_SAMPLEFORMAT, longv);
186 	CopyField2(TIFFTAG_EXTRASAMPLES, shortv, shortav);
187 	{ uint16 *red, *green, *blue;
188 	  CopyField3(TIFFTAG_COLORMAP, red, green, blue);
189 	}
190 	{ uint16 shortv2;
191 	  CopyField2(TIFFTAG_PAGENUMBER, shortv, shortv2);
192 	}
193 	CopyField(TIFFTAG_ARTIST, stringv);
194 	CopyField(TIFFTAG_IMAGEDESCRIPTION, stringv);
195 	CopyField(TIFFTAG_MAKE, stringv);
196 	CopyField(TIFFTAG_MODEL, stringv);
197 	CopyField(TIFFTAG_SOFTWARE, stringv);
198 	CopyField(TIFFTAG_DATETIME, stringv);
199 	CopyField(TIFFTAG_HOSTCOMPUTER, stringv);
200 	CopyField(TIFFTAG_PAGENAME, stringv);
201 	CopyField(TIFFTAG_DOCUMENTNAME, stringv);
202 	CopyField(TIFFTAG_BADFAXLINES, longv);
203 	CopyField(TIFFTAG_CLEANFAXDATA, longv);
204 	CopyField(TIFFTAG_CONSECUTIVEBADFAXLINES, longv);
205 	CopyField(TIFFTAG_FAXRECVPARAMS, longv);
206 	CopyField(TIFFTAG_FAXRECVTIME, longv);
207 	CopyField(TIFFTAG_FAXSUBADDRESS, stringv);
208 	CopyField(TIFFTAG_FAXDCS, stringv);
209 	if (TIFFIsTiled(in))
210 		return (cpTiles(in, out));
211 	else
212 		return (cpStrips(in, out));
213 }
214 
215 static int
216 cpStrips(TIFF* in, TIFF* out)
217 {
218 	tsize_t bufsize  = TIFFStripSize(in);
219 	unsigned char *buf = (unsigned char *)_TIFFmalloc(bufsize);
220 
221 	if (buf) {
222 		tstrip_t s, ns = TIFFNumberOfStrips(in);
223 		uint32 *bytecounts;
224 
225 		TIFFGetField(in, TIFFTAG_STRIPBYTECOUNTS, &bytecounts);
226 		for (s = 0; s < ns; s++) {
227 			if (bytecounts[s] > (uint32)bufsize) {
228 				buf = (unsigned char *)_TIFFrealloc(buf, bytecounts[s]);
229 				if (!buf)
230 					return (0);
231 				bufsize = bytecounts[s];
232 			}
233 			if (TIFFReadRawStrip(in, s, buf, bytecounts[s]) < 0 ||
234 			    TIFFWriteRawStrip(out, s, buf, bytecounts[s]) < 0) {
235 				_TIFFfree(buf);
236 				return (0);
237 			}
238 		}
239 		_TIFFfree(buf);
240 		return (1);
241 	}
242 	return (0);
243 }
244 
245 static int
246 cpTiles(TIFF* in, TIFF* out)
247 {
248 	tsize_t bufsize = TIFFTileSize(in);
249 	unsigned char *buf = (unsigned char *)_TIFFmalloc(bufsize);
250 
251 	if (buf) {
252 		ttile_t t, nt = TIFFNumberOfTiles(in);
253 		uint32 *bytecounts;
254 
255 		TIFFGetField(in, TIFFTAG_TILEBYTECOUNTS, &bytecounts);
256 		for (t = 0; t < nt; t++) {
257 			if (bytecounts[t] > (uint32) bufsize) {
258 				buf = (unsigned char *)_TIFFrealloc(buf, bytecounts[t]);
259 				if (!buf)
260 					return (0);
261 				bufsize = bytecounts[t];
262 			}
263 			if (TIFFReadRawTile(in, t, buf, bytecounts[t]) < 0 ||
264 			    TIFFWriteRawTile(out, t, buf, bytecounts[t]) < 0) {
265 				_TIFFfree(buf);
266 				return (0);
267 			}
268 		}
269 		_TIFFfree(buf);
270 		return (1);
271 	}
272 	return (0);
273 }
274