534 lines
12 KiB
C
534 lines
12 KiB
C
/*
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* Copyright (c) 1991-1997 Sam Leffler
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* Copyright (c) 1991-1997 Silicon Graphics, Inc.
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*
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* Permission to use, copy, modify, distribute, and sell this software and
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* its documentation for any purpose is hereby granted without fee, provided
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* that (i) the above copyright notices and this permission notice appear in
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* all copies of the software and related documentation, and (ii) the names of
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* Sam Leffler and Silicon Graphics may not be used in any advertising or
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* publicity relating to the software without the specific, prior written
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* permission of Sam Leffler and Silicon Graphics.
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*
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* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
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* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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*
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* IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
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* ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
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* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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* WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
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* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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#include "tif_config.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#ifdef HAVE_FCNTL_H
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# include <fcntl.h>
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#endif
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#ifdef HAVE_IO_H
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# include <io.h>
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#endif
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#ifdef NEED_LIBPORT
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# include "libport.h"
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#endif
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#include "tiffio.h"
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#ifndef HAVE_GETOPT
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extern int getopt(int argc, char * const argv[], const char *optstring);
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#endif
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#ifndef EXIT_SUCCESS
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#define EXIT_SUCCESS 0
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#endif
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#ifndef EXIT_FAILURE
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#define EXIT_FAILURE 1
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#endif
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#define streq(a,b) (strcmp(a,b) == 0)
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#define strneq(a,b,n) (strncmp(a,b,n) == 0)
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static uint16 compression = COMPRESSION_PACKBITS;
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static uint16 predictor = 0;
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static int quality = 75; /* JPEG quality */
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static int jpegcolormode = JPEGCOLORMODE_RGB;
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static uint32 g3opts;
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static void usage(int code);
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static int processCompressOptions(char*);
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static void
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pack_none (unsigned char *buf, unsigned int smpls, uint16 bps)
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{
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(void)buf;
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(void)smpls;
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(void)bps;
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return;
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}
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static void
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pack_swab (unsigned char *buf, unsigned int smpls, uint16 bps)
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{
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unsigned int s;
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unsigned char h;
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unsigned char l;
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(void)bps;
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for (s = 0; smpls > s; s++) {
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h = buf [s * 2 + 0];
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l = buf [s * 2 + 1];
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buf [s * 2 + 0] = l;
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buf [s * 2 + 1] = h;
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}
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return;
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}
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static void
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pack_bytes (unsigned char *buf, unsigned int smpls, uint16 bps)
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{
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unsigned int s;
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unsigned int in;
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unsigned int out;
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int bits;
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uint16 t;
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in = 0;
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out = 0;
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bits = 0;
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t = 0;
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for (s = 0; smpls > s; s++) {
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t <<= bps;
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t |= (uint16) buf [in++];
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bits += bps;
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if (8 <= bits) {
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bits -= 8;
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buf [out++] = (t >> bits) & 0xFF;
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}
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}
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if (0 != bits)
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buf [out] = (t << (8 - bits)) & 0xFF;
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}
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static void
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pack_words (unsigned char *buf, unsigned int smpls, uint16 bps)
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{
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unsigned int s;
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unsigned int in;
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unsigned int out;
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int bits;
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uint32 t;
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in = 0;
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out = 0;
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bits = 0;
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t = 0;
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for (s = 0; smpls > s; s++) {
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t <<= bps;
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t |= (uint32) buf [in++] << 8;
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t |= (uint32) buf [in++] << 0;
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bits += bps;
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if (16 <= bits) {
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bits -= 16;
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buf [out++] = (t >> (bits + 8));
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buf [out++] = (t >> (bits + 0));
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}
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}
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if (0 != bits) {
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t <<= 16 - bits;
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buf [out++] = (t >> (16 + 8));
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buf [out++] = (t >> (16 + 0));
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}
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}
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static void
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BadPPM(char* file)
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{
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fprintf(stderr, "%s: Not a PPM file.\n", file);
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exit(EXIT_FAILURE);
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}
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#define TIFF_SIZE_T_MAX ((size_t) ~ ((size_t)0))
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#define TIFF_TMSIZE_T_MAX (tmsize_t)(TIFF_SIZE_T_MAX >> 1)
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static tmsize_t
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multiply_ms(tmsize_t m1, tmsize_t m2)
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{
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if( m1 == 0 || m2 > TIFF_TMSIZE_T_MAX / m1 )
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return 0;
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return m1 * m2;
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}
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int
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main(int argc, char* argv[])
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{
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uint16 photometric = 0;
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uint32 rowsperstrip = (uint32) -1;
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double resolution = -1;
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unsigned char *buf = NULL;
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tmsize_t linebytes = 0;
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int pbm;
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uint16 spp = 1;
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uint16 bpp = 8;
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void (*pack_func) (unsigned char *buf, unsigned int smpls, uint16 bps);
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TIFF *out;
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FILE *in;
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unsigned int w, h, prec, row;
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char *infile;
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int c;
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#if !HAVE_DECL_OPTARG
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extern int optind;
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extern char* optarg;
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#endif
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tmsize_t scanline_size;
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if (argc < 2) {
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fprintf(stderr, "%s: Too few arguments\n", argv[0]);
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usage(EXIT_FAILURE);
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}
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while ((c = getopt(argc, argv, "c:r:R:h")) != -1)
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switch (c) {
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case 'c': /* compression scheme */
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if (!processCompressOptions(optarg))
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usage(EXIT_FAILURE);
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break;
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case 'r': /* rows/strip */
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rowsperstrip = atoi(optarg);
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break;
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case 'R': /* resolution */
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resolution = atof(optarg);
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break;
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case 'h':
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usage(EXIT_SUCCESS);
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case '?':
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usage(EXIT_FAILURE);
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/*NOTREACHED*/
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}
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if (optind + 2 < argc) {
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fprintf(stderr, "%s: Too many arguments\n", argv[0]);
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usage(EXIT_FAILURE);
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}
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/*
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* If only one file is specified, read input from
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* stdin; otherwise usage is: ppm2tiff input output.
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*/
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if (argc - optind > 1) {
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infile = argv[optind++];
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in = fopen(infile, "rb");
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if (in == NULL) {
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fprintf(stderr, "%s: Can not open.\n", infile);
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return (EXIT_FAILURE);
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}
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} else {
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infile = "<stdin>";
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in = stdin;
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#if defined(HAVE_SETMODE) && defined(O_BINARY)
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setmode(fileno(stdin), O_BINARY);
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#endif
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}
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if (fgetc(in) != 'P')
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BadPPM(infile);
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switch (fgetc(in)) {
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case '4': /* it's a PBM file */
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pbm = !0;
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spp = 1;
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photometric = PHOTOMETRIC_MINISWHITE;
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break;
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case '5': /* it's a PGM file */
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pbm = 0;
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spp = 1;
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photometric = PHOTOMETRIC_MINISBLACK;
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break;
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case '6': /* it's a PPM file */
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pbm = 0;
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spp = 3;
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photometric = PHOTOMETRIC_RGB;
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if (compression == COMPRESSION_JPEG &&
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jpegcolormode == JPEGCOLORMODE_RGB)
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photometric = PHOTOMETRIC_YCBCR;
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break;
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default:
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BadPPM(infile);
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}
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/* Parse header */
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while(1) {
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if (feof(in))
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BadPPM(infile);
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c = fgetc(in);
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/* Skip whitespaces (blanks, TABs, CRs, LFs) */
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if (strchr(" \t\r\n", c))
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continue;
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/* Check for comment line */
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if (c == '#') {
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do {
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c = fgetc(in);
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} while(!(strchr("\r\n", c) || feof(in)));
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continue;
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}
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ungetc(c, in);
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break;
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}
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if (pbm) {
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if (fscanf(in, " %u %u", &w, &h) != 2)
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BadPPM(infile);
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if (fgetc(in) != '\n')
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BadPPM(infile);
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bpp = 1;
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pack_func = pack_none;
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} else {
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if (fscanf(in, " %u %u %u", &w, &h, &prec) != 3)
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BadPPM(infile);
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if (fgetc(in) != '\n' || 0 == prec || 65535 < prec)
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BadPPM(infile);
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if (0 != (prec & (prec + 1))) {
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fprintf(stderr, "%s: unsupported maxval %u.\n",
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infile, prec);
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exit(EXIT_FAILURE);
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}
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bpp = 0;
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if ((prec + 1) & 0xAAAAAAAA) bpp |= 1;
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if ((prec + 1) & 0xCCCCCCCC) bpp |= 2;
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if ((prec + 1) & 0xF0F0F0F0) bpp |= 4;
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if ((prec + 1) & 0xFF00FF00) bpp |= 8;
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if ((prec + 1) & 0xFFFF0000) bpp |= 16;
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switch (bpp) {
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case 8:
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pack_func = pack_none;
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break;
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case 16:
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{
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const unsigned short i = 0x0100;
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if (0 == *(unsigned char*) &i)
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pack_func = pack_swab;
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else
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pack_func = pack_none;
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}
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break;
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default:
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if (8 >= bpp)
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pack_func = pack_bytes;
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else
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pack_func = pack_words;
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break;
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}
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}
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out = TIFFOpen(argv[optind], "w");
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if (out == NULL)
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return (EXIT_FAILURE);
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TIFFSetField(out, TIFFTAG_IMAGEWIDTH, (uint32) w);
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TIFFSetField(out, TIFFTAG_IMAGELENGTH, (uint32) h);
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TIFFSetField(out, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
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TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, spp);
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TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, bpp);
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TIFFSetField(out, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
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TIFFSetField(out, TIFFTAG_PHOTOMETRIC, photometric);
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TIFFSetField(out, TIFFTAG_COMPRESSION, compression);
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switch (compression) {
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case COMPRESSION_JPEG:
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TIFFSetField(out, TIFFTAG_JPEGQUALITY, quality);
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TIFFSetField(out, TIFFTAG_JPEGCOLORMODE, jpegcolormode);
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break;
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case COMPRESSION_LZW:
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case COMPRESSION_DEFLATE:
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if (predictor != 0)
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TIFFSetField(out, TIFFTAG_PREDICTOR, predictor);
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break;
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case COMPRESSION_CCITTFAX3:
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TIFFSetField(out, TIFFTAG_GROUP3OPTIONS, g3opts);
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break;
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}
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if (pbm) {
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/* if round-up overflows, result will be zero, OK */
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linebytes = (multiply_ms(spp, w) + (8 - 1)) / 8;
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} else if (bpp <= 8) {
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linebytes = multiply_ms(spp, w);
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} else {
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linebytes = multiply_ms(2 * spp, w);
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}
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if (rowsperstrip == (uint32) -1) {
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TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, h);
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} else {
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TIFFSetField(out, TIFFTAG_ROWSPERSTRIP,
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TIFFDefaultStripSize(out, rowsperstrip));
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}
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if (linebytes == 0) {
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fprintf(stderr, "%s: scanline size overflow\n", infile);
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(void) TIFFClose(out);
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exit(EXIT_FAILURE);
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}
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scanline_size = TIFFScanlineSize(out);
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if (scanline_size == 0) {
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/* overflow - TIFFScanlineSize already printed a message */
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(void) TIFFClose(out);
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exit(EXIT_FAILURE);
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}
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if (scanline_size < linebytes)
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buf = (unsigned char *)_TIFFmalloc(linebytes);
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else
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buf = (unsigned char *)_TIFFmalloc(scanline_size);
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if (buf == NULL) {
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fprintf(stderr, "%s: Not enough memory\n", infile);
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(void) TIFFClose(out);
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exit(EXIT_FAILURE);
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}
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if (resolution > 0) {
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TIFFSetField(out, TIFFTAG_XRESOLUTION, resolution);
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TIFFSetField(out, TIFFTAG_YRESOLUTION, resolution);
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TIFFSetField(out, TIFFTAG_RESOLUTIONUNIT, RESUNIT_INCH);
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}
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for (row = 0; row < h; row++) {
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if (fread(buf, linebytes, 1, in) != 1) {
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fprintf(stderr, "%s: scanline %lu: Read error.\n",
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infile, (unsigned long) row);
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break;
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}
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pack_func (buf, w * spp, bpp);
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if (TIFFWriteScanline(out, buf, row, 0) < 0)
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break;
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}
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if (in != stdin)
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fclose(in);
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(void) TIFFClose(out);
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if (buf)
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_TIFFfree(buf);
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return (EXIT_SUCCESS);
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}
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static void
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processG3Options(char* cp)
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{
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g3opts = 0;
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if( (cp = strchr(cp, ':')) ) {
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do {
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cp++;
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if (strneq(cp, "1d", 2))
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g3opts &= ~GROUP3OPT_2DENCODING;
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else if (strneq(cp, "2d", 2))
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g3opts |= GROUP3OPT_2DENCODING;
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else if (strneq(cp, "fill", 4))
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g3opts |= GROUP3OPT_FILLBITS;
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else
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usage(EXIT_FAILURE);
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} while( (cp = strchr(cp, ':')) );
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}
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}
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static int
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processCompressOptions(char* opt)
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{
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if (streq(opt, "none"))
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compression = COMPRESSION_NONE;
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else if (streq(opt, "packbits"))
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compression = COMPRESSION_PACKBITS;
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else if (strneq(opt, "jpeg", 4)) {
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char* cp = strchr(opt, ':');
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compression = COMPRESSION_JPEG;
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while (cp)
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{
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if (isdigit((int)cp[1]))
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quality = atoi(cp+1);
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else if (cp[1] == 'r' )
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jpegcolormode = JPEGCOLORMODE_RAW;
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else
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usage(EXIT_FAILURE);
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cp = strchr(cp+1,':');
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}
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} else if (strneq(opt, "g3", 2)) {
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processG3Options(opt);
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compression = COMPRESSION_CCITTFAX3;
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} else if (streq(opt, "g4")) {
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compression = COMPRESSION_CCITTFAX4;
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} else if (strneq(opt, "lzw", 3)) {
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char* cp = strchr(opt, ':');
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if (cp)
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predictor = atoi(cp+1);
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compression = COMPRESSION_LZW;
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} else if (strneq(opt, "zip", 3)) {
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char* cp = strchr(opt, ':');
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if (cp)
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predictor = atoi(cp+1);
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compression = COMPRESSION_DEFLATE;
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} else
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return (0);
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return (1);
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}
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const char* stuff[] = {
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"usage: ppm2tiff [options] input.ppm output.tif",
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"where options are:",
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" -r # make each strip have no more than # rows",
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" -R # set x&y resolution (dpi)",
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"",
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" -c jpeg[:opts] compress output with JPEG encoding",
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" -c lzw[:opts] compress output with Lempel-Ziv & Welch encoding",
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" -c zip[:opts] compress output with deflate encoding",
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" -c packbits compress output with packbits encoding (the default)",
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" -c g3[:opts] compress output with CCITT Group 3 encoding",
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" -c g4 compress output with CCITT Group 4 encoding",
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" -c none use no compression algorithm on output",
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"",
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"JPEG options:",
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" # set compression quality level (0-100, default 75)",
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" r output color image as RGB rather than YCbCr",
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"LZW and deflate options:",
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" # set predictor value",
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"For example, -c lzw:2 to get LZW-encoded data with horizontal differencing",
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NULL
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};
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static void
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usage(int code)
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{
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int i;
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FILE * out = (code == EXIT_SUCCESS) ? stdout : stderr;
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fprintf(out, "%s\n\n", TIFFGetVersion());
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for (i = 0; stuff[i] != NULL; i++)
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fprintf(out, "%s\n", stuff[i]);
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exit(code);
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}
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/* vim: set ts=8 sts=8 sw=8 noet: */
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/*
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* Local Variables:
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* mode: c
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* c-basic-offset: 8
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* fill-column: 78
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* End:
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*/
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