mirror of
https://github.com/HDFGroup/hdf5.git
synced 2024-11-27 02:10:55 +08:00
d0ced67f52
Bug fix (#56) Description: h52gif creash for data > 1 byt Solution: check datatype and return with error message if not 1 byte int Platforms tested: shanti,verbena Misc. update:
405 lines
12 KiB
C
405 lines
12 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
|
|
* Copyright by the Board of Trustees of the University of Illinois. *
|
|
* All rights reserved. *
|
|
* *
|
|
* This file is part of HDF5. The full HDF5 copyright notice, including *
|
|
* terms governing use, modification, and redistribution, is contained in *
|
|
* the files COPYING and Copyright.html. COPYING can be found at the root *
|
|
* of the source code distribution tree; Copyright.html can be found at the *
|
|
* root level of an installed copy of the electronic HDF5 document set and *
|
|
* is linked from the top-level documents page. It can also be found at *
|
|
* http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have *
|
|
* access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
|
|
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
|
|
|
|
/*
|
|
* NOTES:
|
|
* 04/01 - 04/10: been working on it a lot. I think it does gif89 images just
|
|
* fine with palettes. So that's cool. Putting in multiple
|
|
* images and animation support right now
|
|
* 03/29: For some reason I can write .GIF files which IE will open and see
|
|
* but kodak imaging does not like. I'm sure its a problem with the GIF
|
|
* file, I can't figure out what.
|
|
* 03/17: Explicitely deallocate the GIFTOMEM* struct in the main loop.
|
|
* Check for both success and failure conditions
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <assert.h>
|
|
#include "gif.h"
|
|
|
|
#define MAX_FILE_LEN 256
|
|
#define MAX_NUMBER_IMAGES 50
|
|
|
|
int EndianOrder;
|
|
|
|
#ifdef NOT_USED
|
|
static void
|
|
PutByte(BYTE b , FILE *fpGif)
|
|
{
|
|
if (fputc(b , fpGif) == EOF) {
|
|
printf("File Writing Error, cannot continue");
|
|
exit(-1);
|
|
}
|
|
}
|
|
#endif /* NOT_USED */
|
|
|
|
static void
|
|
putword(int w, FILE *fp)
|
|
{
|
|
/* writes a 16-bit integer in GIF order (LSB first) */
|
|
fputc(w &0xff, fp);
|
|
fputc((w>>8)&0xff,fp);
|
|
}
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
printf("Usage: h52gif <h5_file> <gif_file> -i <h5_image> [-p <h5_palette>]\n");
|
|
printf("h52gif expects *at least* one h5_image.\n");
|
|
printf("You may repeat -i <h5_image> [-p <h5_palette>] at most 50 times\n");
|
|
printf("(maximum of 50 images).\n");
|
|
}
|
|
|
|
FILE *fpGif = NULL;
|
|
int main(int argc , char **argv)
|
|
{
|
|
|
|
|
|
hsize_t dim_sizes[2];
|
|
BYTE *Image;
|
|
|
|
/* compression structs */
|
|
CHAR *HDFName = NULL;
|
|
CHAR *GIFName = NULL;
|
|
|
|
/* reference variables */
|
|
int has_local_palette; /* treated as a flag */
|
|
|
|
BYTE* b;
|
|
|
|
BYTE GlobalPalette[256][3];
|
|
BYTE Red[256];
|
|
BYTE Green[256];
|
|
BYTE Blue[256];
|
|
|
|
int RWidth, RHeight;
|
|
#ifdef UNUSED
|
|
int LeftOfs, TopOfs;
|
|
int CountDown;
|
|
int curx , cury;
|
|
int w,h;
|
|
#endif /* UNUSED */
|
|
int ColorMapSize, InitCodeSize, Background, BitsPerPixel;
|
|
int j,nc;
|
|
int i;
|
|
int numcols = 256;
|
|
int time_out = 0; /* time between two images in the animation */
|
|
int n_images , idx;
|
|
|
|
BYTE pc2nc[256] , r1[256] , g1[256] , b1[256];
|
|
|
|
/* initial stuff */
|
|
int number_of_images = 0;
|
|
int arg_index = 2;
|
|
int bool_is_image = 0; /* 0 = false , 1 = true */
|
|
int bool_is_palette = 0;
|
|
CHAR* image_name_arr[MAX_NUMBER_IMAGES];
|
|
CHAR* pal_name_arr[MAX_NUMBER_IMAGES];
|
|
|
|
if (argc < 5) {
|
|
/* they didn't supply at least one image -- bail */
|
|
usage();
|
|
return 0;
|
|
}
|
|
|
|
memset(image_name_arr , 0 , MAX_NUMBER_IMAGES);
|
|
memset(pal_name_arr , 0 , MAX_NUMBER_IMAGES);
|
|
|
|
HDFName = (CHAR *)malloc (strlen(argv[1]) + 1);
|
|
GIFName = (CHAR *)malloc (strlen(argv[2]) + 1);
|
|
|
|
if (strlen(argv[1] + 1) > MAX_FILE_LEN || strlen(argv[2] + 1) > MAX_FILE_LEN) {
|
|
/* supplied file names are too long. bail. */
|
|
usage();
|
|
printf("Supplied filenames exceed maximum length of 256 bytes\n");
|
|
}
|
|
|
|
strcpy(HDFName , argv[1]);
|
|
strcpy(GIFName , argv[2]);
|
|
|
|
/* get the options */
|
|
while (arg_index++ < argc - 1 && number_of_images < MAX_NUMBER_IMAGES) {
|
|
if (!strcmp(argv[arg_index] , "-i")) {
|
|
bool_is_image = 1;
|
|
continue;
|
|
}
|
|
|
|
if (!strcmp(argv[arg_index] , "-p")) {
|
|
bool_is_palette = 1;
|
|
continue;
|
|
}
|
|
|
|
if (!strcmp(argv[arg_index] , "-a")) {
|
|
time_out = 10;
|
|
continue;
|
|
}
|
|
|
|
if (bool_is_image) {
|
|
/* this is an image */
|
|
/* allocate space to store the image name */
|
|
image_name_arr[number_of_images] = (CHAR*) malloc(strlen(argv[arg_index] + 1));
|
|
strcpy(image_name_arr[number_of_images] , argv[arg_index]);
|
|
|
|
/* make the palette array for this NULL */
|
|
pal_name_arr[number_of_images] = NULL;
|
|
number_of_images++;
|
|
bool_is_image = 0;
|
|
continue;
|
|
}
|
|
|
|
if (bool_is_palette) {
|
|
/* this is a palette */
|
|
/* allocate space to store the pal name */
|
|
/* the palette was probably allocated for a previous image */
|
|
pal_name_arr[number_of_images-1] = (CHAR*) malloc(strlen(argv[arg_index] + 1));
|
|
strcpy(pal_name_arr[number_of_images - 1], argv[arg_index]);
|
|
bool_is_palette = 0;
|
|
continue;
|
|
}
|
|
|
|
/* oops. This was not meant to happen */
|
|
usage();
|
|
|
|
#if 0
|
|
while (number_of_images--) {
|
|
cleanup(image_name_arr[number_of_images]);
|
|
cleanup(pal_name_arr[number_of_images]);
|
|
}
|
|
#endif /* 0 */
|
|
|
|
return -1;
|
|
}
|
|
|
|
/* we shall always have a palette - read hdf will see to that */
|
|
has_local_palette = true;
|
|
|
|
/* Do Endian Order testing and set Endian Order */
|
|
idx = 0x0001;
|
|
b = (BYTE *) &idx;
|
|
EndianOrder = (b[0] ? 1:0);
|
|
|
|
if (!(fpGif = fopen(GIFName , "wb"))) {
|
|
printf("Error opening gif file for output. Aborting.\n");
|
|
return -1;
|
|
}
|
|
|
|
/* hardwire n_images to 1 for now. */
|
|
n_images = number_of_images;
|
|
|
|
Background = 0;
|
|
for (idx = 0 ; idx < n_images ; idx++) {
|
|
/* try to read the image and the palette */
|
|
|
|
/*
|
|
* Lots of funky stuff to support multiple images has been taken off.
|
|
* Just in case you're extending code, here's what you need to do in
|
|
* short: figure out if there is a global palette or not, if there is
|
|
* one store that one only. If they are all local or a combination of
|
|
* local and global palettes, you will have to write the global
|
|
* palette out and then independantly write the smaller local palettes
|
|
*/
|
|
if (ReadHDF(&Image, GlobalPalette, dim_sizes, HDFName,
|
|
image_name_arr[idx], pal_name_arr[idx]) < 0) {
|
|
fprintf(stderr , "Unable to read image %s from HDF file %s\n",image_name_arr[idx],HDFName);
|
|
return -1;
|
|
}
|
|
|
|
assert(dim_sizes[0]==(hsize_t)((int)dim_sizes[0]));
|
|
assert(dim_sizes[1]==(hsize_t)((int)dim_sizes[1]));
|
|
RWidth = (int)dim_sizes[1];
|
|
RHeight = (int)dim_sizes[0];
|
|
#ifdef UNUSED
|
|
w = dim_sizes[1];
|
|
h = dim_sizes[0];
|
|
|
|
LeftOfs = TopOfs = 0;
|
|
#endif /* UNUSED */
|
|
|
|
|
|
/*
|
|
* If the first image does not have a palette, I make my own global
|
|
* color table Obviously this is not the best thing to do, better
|
|
* steps would be:
|
|
*
|
|
* 1. Check for either a global palette or a global attribute called
|
|
* palette
|
|
* 2. Check for palettes in any of the other images.
|
|
*/
|
|
if (!has_local_palette) {
|
|
for (i = 0 ; i < 256 ; i++) {
|
|
Red[i] = 255 - i;
|
|
Green[i] = 255 - i;
|
|
Blue[i] = 255 - i;
|
|
}
|
|
} else {
|
|
for (i = 0 ; i < 256 ; i++){
|
|
Red[i] = GlobalPalette[i][0];
|
|
Green[i] = GlobalPalette[i][1];
|
|
Blue[i] = GlobalPalette[i][2];
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < 256; i++) {
|
|
pc2nc[i] = r1[i] = g1[i] = b1[i] = 0;
|
|
}
|
|
|
|
/* compute number of unique colors */
|
|
nc = 0;
|
|
|
|
for (i = 0; i < numcols; i++) {
|
|
/* see if color #i is already used */
|
|
for (j = 0; j < i; j++) {
|
|
if (Red[i] == Red[j] && Green[i] == Green[j] && Blue[i] == Blue[j])
|
|
break;
|
|
}
|
|
|
|
if (j==i) {
|
|
/* wasn't found */
|
|
pc2nc[i] = nc;
|
|
r1[nc] = Red[i];
|
|
g1[nc] = Green[i];
|
|
b1[nc] = Blue[i];
|
|
nc++;
|
|
} else {
|
|
pc2nc[i] = pc2nc[j];
|
|
}
|
|
}
|
|
|
|
/* figure out 'BitsPerPixel' */
|
|
for (i = 1; i < 8; i++) {
|
|
if ((1<<i) >= nc)
|
|
break;
|
|
}
|
|
|
|
BitsPerPixel = i;
|
|
ColorMapSize = 1 << BitsPerPixel;
|
|
|
|
#ifdef UNUSED
|
|
CountDown = w * h; /* # of pixels we'll be doing */
|
|
#endif /* UNUSED */
|
|
|
|
if (BitsPerPixel <= 1)
|
|
InitCodeSize = 2;
|
|
else
|
|
InitCodeSize = BitsPerPixel;
|
|
|
|
#ifdef UNUSED
|
|
curx = cury = 0;
|
|
#endif /* UNUSED */
|
|
|
|
if (!fpGif) {
|
|
fprintf(stderr, "WriteGIF: file not open for writing\n" );
|
|
return (1);
|
|
}
|
|
|
|
/*
|
|
* If it is the first image we do all the header stuff that isn't
|
|
* required for the rest of the images.
|
|
*/
|
|
if (idx == 0) {
|
|
/* Write out the GIF header and logical screen descriptor */
|
|
if (n_images > 1) {
|
|
fwrite("GIF89a", sizeof( char ), 6, fpGif); /* the GIF magic number */
|
|
} else {
|
|
fwrite("GIF87a", sizeof( char ), 6, fpGif); /* the GIF magic number */
|
|
}
|
|
|
|
putword(RWidth, fpGif); /* screen descriptor */
|
|
putword(RHeight, fpGif);
|
|
|
|
i = 0x00; /* No, there is no color map */
|
|
i |= (8-1)<<4; /* OR in the color resolution (hardwired 8) */
|
|
i |= (BitsPerPixel - 1); /* OR in the # of bits per pixel */
|
|
fputc(i,fpGif);
|
|
|
|
fputc(Background,fpGif); /* background color */
|
|
fputc(0, fpGif); /* future expansion byte */
|
|
|
|
/*
|
|
* If loop_times is 0 , put in the application extension to make
|
|
* the gif anime loop indefinitely
|
|
*/
|
|
if (time_out > 0) {
|
|
fputc(0x21 , fpGif);
|
|
fputc(0xFF , fpGif);
|
|
fputc(11 , fpGif);
|
|
fwrite("NETSCAPE2.0" , 1 , 11 , fpGif);
|
|
fputc(3 , fpGif);
|
|
fputc(1 , fpGif);
|
|
fputc(0 , fpGif);
|
|
fputc(0 , fpGif);
|
|
fputc(0 , fpGif);
|
|
}
|
|
}
|
|
|
|
if (n_images > 1) {
|
|
/* write a graphic control block */
|
|
fputc(0x21 , fpGif);
|
|
fputc(0xF9 , fpGif);
|
|
fputc(4 , fpGif);
|
|
fputc(4 , fpGif);
|
|
putword(time_out , fpGif);
|
|
fputc(255, fpGif);
|
|
fputc(0 , fpGif);
|
|
}
|
|
|
|
/*
|
|
* Put Image Descriptor
|
|
* Hardwiring Left Offset and Top Offset to 0x00
|
|
*/
|
|
fputc(0x2c , fpGif);
|
|
putword(0x00 , fpGif);
|
|
putword(0x00 , fpGif);
|
|
putword(RWidth , fpGif);
|
|
putword(RHeight , fpGif);
|
|
|
|
/* since we always have a local color palette ... */
|
|
fputc((0x80 | (BitsPerPixel - 1)) , fpGif);
|
|
|
|
for (i = 0; i < ColorMapSize; i++) {
|
|
/* write out Global colormap */
|
|
fputc(r1[i], fpGif);
|
|
fputc(g1[i], fpGif);
|
|
fputc(b1[i], fpGif);
|
|
}
|
|
|
|
fputc(InitCodeSize , fpGif);
|
|
|
|
i = hdfWriteGIF(fpGif , Image , 0 , (int)dim_sizes[0] ,
|
|
(int)dim_sizes[1] , r1, g1 , b1 , pc2nc , 256 , 8 ,
|
|
BitsPerPixel);
|
|
fputc(0x00, fpGif);
|
|
free(Image);
|
|
}
|
|
|
|
if (fputc(';',fpGif) == EOF) {
|
|
/* Write GIF file terminator */
|
|
fprintf(stderr , "Error!");
|
|
return -1;
|
|
}
|
|
|
|
fclose(fpGif);
|
|
|
|
#if 0
|
|
while(number_of_images--) {
|
|
if (image_name_arr[number_of_images])
|
|
free(image_name_arr[number_of_images]);
|
|
if (pal_name_arr[number_of_images])
|
|
free(pal_name_arr[number_of_images]);
|
|
}
|
|
#endif /* 0 */
|
|
|
|
return 0;
|
|
}
|