76939f073f
An Ubuntu user noticed that tiffgt was not appropriately calling glFlush(), which was causing tiffgt to open blank windows in some cases. I'm not sure what the cases are, but my system happened to be one that saw blank windows, and the one-line fix the user provided was sufficient to solve it in my case.
472 lines
14 KiB
C
472 lines
14 KiB
C
/* $Id: tiffgt.c,v 1.12 2015-06-14 21:44:17 faxguy Exp $ */
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/*
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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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#include <unistd.h>
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#if HAVE_APPLE_OPENGL_FRAMEWORK
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# include <OpenGL/gl.h>
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# include <GLUT/glut.h>
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#else
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# include <GL/gl.h>
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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, char**, char*);
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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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extern char* optarg;
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extern int optind;
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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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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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