490 lines
15 KiB
C
490 lines
15 KiB
C
/*
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* Copyright (c) 1988-1997 Sam Leffler
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* Copyright (c) 1991-1997 Silicon Graphics, Inc.
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* Copyright (c) 2003, Andrey Kiselev <dron@ak4719.spb.edu>
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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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#if HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#ifdef HAVE_OPENGL_GL_H
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# include <OpenGL/gl.h>
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#else
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# ifdef _WIN32
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# include <windows.h>
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# endif
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# include <GL/gl.h>
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#endif
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#ifdef HAVE_GLUT_GLUT_H
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# include <GLUT/glut.h>
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#else
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# include <GL/glut.h>
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#endif
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#include "tiffio.h"
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#include "tiffiop.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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static uint32 width = 0, height = 0; /* window width & height */
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static uint32* raster = NULL; /* displayable image */
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static TIFFRGBAImage img;
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static int order0 = 0, order;
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static uint16 photo0 = (uint16) -1, photo;
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static int stoponerr = 0; /* stop on read error */
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static int verbose = 0;
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#define TITLE_LENGTH 1024
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static char title[TITLE_LENGTH]; /* window title line */
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static uint32 xmax, ymax;
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static char** filelist = NULL;
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static int fileindex;
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static int filenum;
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static TIFFErrorHandler oerror;
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static TIFFErrorHandler owarning;
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static void cleanup_and_exit(void);
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static int initImage(void);
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static int prevImage(void);
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static int nextImage(void);
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static void setWindowSize(void);
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static void usage(void);
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static uint16 photoArg(const char*);
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static void raster_draw(void);
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static void raster_reshape(int, int);
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static void raster_keys(unsigned char, int, int);
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static void raster_special(int, int, int);
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#if !HAVE_DECL_OPTARG
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extern char* optarg;
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extern int optind;
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#endif
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/* GLUT framework on MacOS X produces deprecation warnings */
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# if defined(__GNUC__) && defined(__APPLE__)
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# pragma GCC diagnostic push
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# pragma GCC diagnostic ignored "-Wdeprecated-declarations"
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# endif
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static TIFF* tif = NULL;
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int
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main(int argc, char* argv[])
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{
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int c;
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int dirnum = -1;
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uint32 diroff = 0;
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oerror = TIFFSetErrorHandler(NULL);
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owarning = TIFFSetWarningHandler(NULL);
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while ((c = getopt(argc, argv, "d:o:p:eflmsvw?")) != -1)
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switch (c) {
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case 'd':
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dirnum = atoi(optarg);
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break;
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case 'e':
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oerror = TIFFSetErrorHandler(oerror);
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break;
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case 'l':
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order0 = FILLORDER_LSB2MSB;
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break;
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case 'm':
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order0 = FILLORDER_MSB2LSB;
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break;
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case 'o':
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diroff = strtoul(optarg, NULL, 0);
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break;
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case 'p':
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photo0 = photoArg(optarg);
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break;
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case 's':
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stoponerr = 1;
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break;
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case 'w':
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owarning = TIFFSetWarningHandler(owarning);
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break;
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case 'v':
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verbose = 1;
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break;
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case '?':
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usage();
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/*NOTREACHED*/
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}
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filenum = argc - optind;
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if ( filenum < 1)
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usage();
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glutInit(&argc, argv);
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glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
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/*
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* Get the screen size
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*/
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xmax = glutGet(GLUT_SCREEN_WIDTH);
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ymax = glutGet(GLUT_SCREEN_HEIGHT);
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/*
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* Use 90% of the screen size
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*/
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xmax = xmax - xmax / 10.0;
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ymax = ymax - ymax / 10.0;
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filelist = (char **) _TIFFmalloc(filenum * sizeof(char*));
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if (!filelist) {
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TIFFError(argv[0], "Can not allocate space for the file list.");
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return 1;
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}
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_TIFFmemcpy(filelist, argv + optind, filenum * sizeof(char*));
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fileindex = -1;
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if (nextImage() < 0) {
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_TIFFfree(filelist);
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return 2;
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}
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/*
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* Set initial directory if user-specified
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* file was opened successfully.
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*/
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if (dirnum != -1 && !TIFFSetDirectory(tif, dirnum))
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TIFFError(argv[0], "Error, seeking to directory %d", dirnum);
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if (diroff != 0 && !TIFFSetSubDirectory(tif, diroff))
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TIFFError(argv[0], "Error, setting subdirectory at %#x", diroff);
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order = order0;
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photo = photo0;
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if (initImage() < 0){
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_TIFFfree(filelist);
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return 3;
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}
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/*
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* Create a new window or reconfigure an existing
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* one to suit the image to be displayed.
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*/
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glutInitWindowSize(width, height);
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snprintf(title, TITLE_LENGTH - 1, "%s [%u]", filelist[fileindex],
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(unsigned int) TIFFCurrentDirectory(tif));
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glutCreateWindow(title);
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glutDisplayFunc(raster_draw);
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glutReshapeFunc(raster_reshape);
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glutKeyboardFunc(raster_keys);
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glutSpecialFunc(raster_special);
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glutMainLoop();
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cleanup_and_exit();
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return 0;
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}
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static void
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cleanup_and_exit(void)
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{
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TIFFRGBAImageEnd(&img);
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if (filelist != NULL)
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_TIFFfree(filelist);
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if (raster != NULL)
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_TIFFfree(raster);
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if (tif != NULL)
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TIFFClose(tif);
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exit(0);
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}
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static int
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initImage(void)
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{
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uint32 w, h;
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if (order)
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TIFFSetField(tif, TIFFTAG_FILLORDER, order);
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if (photo != (uint16) -1)
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TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, photo);
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if (!TIFFRGBAImageBegin(&img, tif, stoponerr, title)) {
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TIFFError(filelist[fileindex], "%s", title);
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TIFFClose(tif);
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tif = NULL;
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return -1;
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}
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/*
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* Setup the image raster as required.
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*/
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h = img.height;
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w = img.width;
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if (h > ymax) {
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w = (int)(w * ((float)ymax / h));
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h = ymax;
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}
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if (w > xmax) {
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h = (int)(h * ((float)xmax / w));
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w = xmax;
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}
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if (w != width || h != height) {
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uint32 rastersize =
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_TIFFMultiply32(tif, img.width, img.height, "allocating raster buffer");
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if (raster != NULL)
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_TIFFfree(raster), raster = NULL;
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raster = (uint32*) _TIFFCheckMalloc(tif, rastersize, sizeof (uint32),
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"allocating raster buffer");
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if (raster == NULL) {
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width = height = 0;
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TIFFError(filelist[fileindex], "No space for raster buffer");
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cleanup_and_exit();
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}
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width = w;
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height = h;
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}
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TIFFRGBAImageGet(&img, raster, img.width, img.height);
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#if HOST_BIGENDIAN
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TIFFSwabArrayOfLong(raster,img.width*img.height);
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#endif
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return 0;
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}
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static int
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prevImage(void)
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{
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if (fileindex > 0)
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fileindex--;
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else if (tif)
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return fileindex;
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if (tif)
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TIFFClose(tif);
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tif = TIFFOpen(filelist[fileindex], "r");
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if (tif == NULL)
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return -1;
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return fileindex;
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}
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static int
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nextImage(void)
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{
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if (fileindex < filenum - 1)
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fileindex++;
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else if (tif)
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return fileindex;
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if (tif)
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TIFFClose(tif);
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tif = TIFFOpen(filelist[fileindex], "r");
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if (tif == NULL)
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return -1;
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return fileindex;
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}
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static void
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setWindowSize(void)
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{
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glutReshapeWindow(width, height);
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}
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static void
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raster_draw(void)
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{
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glDrawPixels(img.width, img.height, GL_RGBA, GL_UNSIGNED_BYTE, (const GLvoid *) raster);
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glFlush();
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}
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static void
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raster_reshape(int win_w, int win_h)
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{
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GLfloat xratio = (GLfloat)win_w/img.width;
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GLfloat yratio = (GLfloat)win_h/img.height;
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int ratio = (int)(((xratio > yratio)?xratio:yratio) * 100);
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glPixelZoom(xratio, yratio);
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glViewport(0, 0, win_w, win_h);
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snprintf(title, 1024, "%s [%u] %d%%", filelist[fileindex],
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(unsigned int) TIFFCurrentDirectory(tif), ratio);
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glutSetWindowTitle(title);
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}
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static void
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raster_keys(unsigned char key, int x, int y)
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{
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(void) x;
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(void) y;
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switch (key) {
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case 'b': /* photometric MinIsBlack */
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photo = PHOTOMETRIC_MINISBLACK;
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initImage();
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break;
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case 'l': /* lsb-to-msb FillOrder */
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order = FILLORDER_LSB2MSB;
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initImage();
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break;
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case 'm': /* msb-to-lsb FillOrder */
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order = FILLORDER_MSB2LSB;
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initImage();
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break;
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case 'w': /* photometric MinIsWhite */
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photo = PHOTOMETRIC_MINISWHITE;
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initImage();
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break;
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case 'W': /* toggle warnings */
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owarning = TIFFSetWarningHandler(owarning);
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initImage();
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break;
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case 'E': /* toggle errors */
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oerror = TIFFSetErrorHandler(oerror);
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initImage();
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break;
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case 'z': /* reset to defaults */
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case 'Z':
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order = order0;
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photo = photo0;
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if (owarning == NULL)
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owarning = TIFFSetWarningHandler(NULL);
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if (oerror == NULL)
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oerror = TIFFSetErrorHandler(NULL);
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initImage();
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break;
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case 'q': /* exit */
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case '\033':
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cleanup_and_exit();
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}
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glutPostRedisplay();
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}
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static void
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raster_special(int key, int x, int y)
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{
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(void) x;
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(void) y;
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switch (key) {
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case GLUT_KEY_PAGE_UP: /* previous logical image */
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if (TIFFCurrentDirectory(tif) > 0) {
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if (TIFFSetDirectory(tif,
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TIFFCurrentDirectory(tif)-1)) {
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initImage();
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setWindowSize();
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}
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} else {
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TIFFRGBAImageEnd(&img);
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prevImage();
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initImage();
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setWindowSize();
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}
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break;
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case GLUT_KEY_PAGE_DOWN: /* next logical image */
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if (!TIFFLastDirectory(tif)) {
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if (TIFFReadDirectory(tif)) {
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initImage();
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setWindowSize();
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}
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} else {
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TIFFRGBAImageEnd(&img);
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nextImage();
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initImage();
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setWindowSize();
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}
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break;
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case GLUT_KEY_HOME: /* 1st image in current file */
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if (TIFFSetDirectory(tif, 0)) {
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TIFFRGBAImageEnd(&img);
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initImage();
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setWindowSize();
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}
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break;
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case GLUT_KEY_END: /* last image in current file */
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TIFFRGBAImageEnd(&img);
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while (!TIFFLastDirectory(tif))
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TIFFReadDirectory(tif);
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initImage();
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setWindowSize();
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break;
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}
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glutPostRedisplay();
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}
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/* GLUT framework on MacOS X produces deprecation warnings */
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# if defined(__GNUC__) && defined(__APPLE__)
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# pragma GCC diagnostic pop
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# endif
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char* stuff[] = {
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"usage: tiffgt [options] file.tif",
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"where options are:",
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" -c use colormap visual",
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" -d dirnum set initial directory (default is 0)",
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" -e enable display of TIFF error messages",
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" -l force lsb-to-msb FillOrder",
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" -m force msb-to-lsb FillOrder",
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" -o offset set initial directory offset",
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" -p photo override photometric interpretation",
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" -r use fullcolor visual",
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" -s stop decoding on first error (default is ignore errors)",
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" -v enable verbose mode",
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" -w enable display of TIFF warning messages",
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NULL
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};
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static void
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usage(void)
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{
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char buf[BUFSIZ];
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int i;
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setbuf(stderr, buf);
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fprintf(stderr, "%s\n\n", TIFFGetVersion());
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for (i = 0; stuff[i] != NULL; i++)
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fprintf(stderr, "%s\n", stuff[i]);
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exit(-1);
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}
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static uint16
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photoArg(const char* arg)
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{
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if (strcmp(arg, "miniswhite") == 0)
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return (PHOTOMETRIC_MINISWHITE);
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else if (strcmp(arg, "minisblack") == 0)
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return (PHOTOMETRIC_MINISBLACK);
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else if (strcmp(arg, "rgb") == 0)
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return (PHOTOMETRIC_RGB);
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else if (strcmp(arg, "palette") == 0)
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return (PHOTOMETRIC_PALETTE);
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else if (strcmp(arg, "mask") == 0)
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return (PHOTOMETRIC_MASK);
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else if (strcmp(arg, "separated") == 0)
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return (PHOTOMETRIC_SEPARATED);
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else if (strcmp(arg, "ycbcr") == 0)
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return (PHOTOMETRIC_YCBCR);
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else if (strcmp(arg, "cielab") == 0)
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return (PHOTOMETRIC_CIELAB);
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else if (strcmp(arg, "logl") == 0)
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return (PHOTOMETRIC_LOGL);
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else if (strcmp(arg, "logluv") == 0)
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return (PHOTOMETRIC_LOGLUV);
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else
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return ((uint16) -1);
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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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