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diff --git a/tools/gifconv/readhdf.c b/tools/gifconv/readhdf.c
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-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
- * 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. *
- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-#include "gif.h"
-#include "h5tools.h"
-
-
-/* just a small cleanup routine before we leave */
-void
-cleanup(BYTE *ptr)
-{
- if (ptr)
- free(ptr);
-}
-
-/* Function: ReadHDF
-** Return: 0 on completion without error, -1 on error
-** Input: CHAR *h5_file - HDF file name
-** CHAR *dset_name - Name of the HDF Image dataset
-** CHAR *pal_name - Name of the HDF palette
-** Output: BYTE** data - the HDF Image to be converted
-** BYTE palette[256][3] - the corresponding palette
-** hsize_t* image_size - the size of each dimension of the image
-**
-** Future Notes:
-** The way readHDF works right now is that it expects the user
-** to know the exact path to the HDF image. Thus it does not
-** parse the HDF file looking for image datasets and corresponding
-** palettes. Also it takes in the default palette for the image
-** specified, if the palette is missing, it makes a default greyscale
-** palette and throws it in.
-**
-** Modifications: Pedro Vicente Nunes, pvn@ncsa.uiuc.edu
-** Date: December 15, 2005
-** Changed the HDF5 read routines to use memory types and sizes,
-** for both the image and pallete datasets
-**
-*/
-int ReadHDF(BYTE** data, BYTE palette[256][3], hsize_t *image_size,
- CHAR *h5_file, CHAR *dset_name, CHAR *pal_name)
-{
- hid_t fHfile; /* H5 file to open */
- hid_t dspace; /* dataspace identifier for the the dataset */
- hid_t dtype; /* datatype identifier for the the dataset */
- hid_t mtype_id; /* memory data type ID */
- size_t msize; /* memory size of memory type */
- hid_t dset; /* dataset identifier */
- hid_t pal_set; /* dataset for palette */
- hid_t pal_space; /* dataspace for palette */
- hid_t pal_dtype; /* datatype for palette */
- hsize_t datasize; /* size of the image */
- int pal_exist=0; /* do we have a palette? */
-
- /* check stuff */
- if (!h5_file || !dset_name || !image_size) {
- fprintf(stderr, "NULL is not an acceptable input for HDFread. Aborting.\n");
- return -1;
- }
-
- /* do we have a palette ? */
- if (pal_name) {
- pal_exist = 1;
- }
-
- /* try opening the file */
- /* H5 file open calls */
- if ((fHfile = H5Fopen(h5_file , H5F_ACC_RDONLY , H5P_DEFAULT)) < 0) {
- fprintf(stderr , "Unable to open HDF file for input. Aborting.\n");
- return -1;
- }
-
- /* open the dataset for reading */
- if ((dset = H5Dopen(fHfile , dset_name)) < 0) {
- fprintf(stderr , "Unable to open dataset\n");
- return -1;
- }
-
- dtype = H5Dget_type(dset);
- if (dtype < 0) {
- fprintf(stderr , "Unable to open datatype\n");
- return -1;
- }
- if (H5Tget_class(dtype) != H5T_INTEGER) {
- fprintf(stderr , "Data is not integer. Cannot convert to GIF\n");
- return -1;
- }
- if (H5Tget_size(dtype) != 1) {
- fprintf(stderr , "Data is %d bytes per pixel. Cannot convert to GIF\n",(int)H5Tget_size(dtype));
- return -1;
- }
-
- /* get the dataspace */
- if ((dspace = H5Dget_space(dset)) < 0) {
- fprintf(stderr , "Unable to get dataspace\n");
- return -1;
- }
-
- /* get the dimension size of the image */
- if (H5Sget_simple_extent_dims(dspace , image_size , NULL) <0 ) {
- fprintf(stderr , "Unable to get dimension info\n");
- return -1;
- }
-
- /* get memory type */
- if ((mtype_id=h5tools_get_native_type(dtype))<0){
- fprintf(stderr , "Unable to get memory type\n");
- return -1;
- }
-
- /* get memory datatype size */
- if ((msize=H5Tget_size(mtype_id))==0){
- fprintf(stderr , "Unable to get memory size\n");
- return -1;
- }
-
- /* size needed to store the image */
- datasize = image_size[0] * image_size[1];
-
- /* allocate memory to store the image */
- if ((*data = (BYTE*) malloc((size_t)datasize*msize)) == NULL) {
- fprintf(stderr , "Out of memory, exiting");
- return -1;
- }
-
- /* get the actual image */
- if (H5Dread(dset , mtype_id, H5S_ALL , H5S_ALL , H5P_DEFAULT , *data) < 0) {
- fprintf(stderr , "Unable to read data \n");
- cleanup(*data);
- return -1;
- }
-
- if (pal_exist) {
- hsize_t loc_pal_size[2];
- hsize_t pal_datasize;
- hid_t pal_mtype_id;
- void *temp_buf;
-
- /* get the palette dataset */
- if ((pal_set = H5Dopen(fHfile , pal_name)) < 0) {
- fprintf(stderr , "Unable to open dataset\n");
- pal_exist = 0;
- return -1;
- }
-
- pal_dtype = H5Dget_type(pal_set);
- if (dtype < 0) {
- fprintf(stderr , "Unable to open palette datatype\n");
- return -1;
- }
- if (H5Tget_class(pal_dtype) != H5T_INTEGER) {
- fprintf(stderr , "Palette data is not integer. Cannot convert to GIF\n");
- return -1;
- }
- if (H5Tget_size(pal_dtype) != 1) {
- fprintf(stderr , "Palette data is %d bytes per pixel. Cannot convert to GIF\n",(int)H5Tget_size(pal_dtype));
- return -1;
- }
-
- /* get the dataspace */
- if ((pal_space = H5Dget_space(pal_set)) < 0) {
- fprintf(stderr , "Unable to get dataspace\n");
- pal_exist = 0;
- return -1;
- }
-
- /* get the dimension size of the palette. */
- if (H5Sget_simple_extent_dims(pal_space , loc_pal_size , NULL) !=2 ) {
- fprintf(stderr , "Unable to get dimension info\n");
- pal_exist = 0;
- return -1;
- }
-
- /* get memory type */
- if ((pal_mtype_id=h5tools_get_native_type(pal_dtype))<0){
- fprintf(stderr , "Unable to get memory type\n");
- return -1;
- }
-
- /* get memory datatype size */
- if ((msize=H5Tget_size(pal_mtype_id))==0){
- fprintf(stderr , "Unable to get memory size\n");
- return -1;
- }
-
- /* size needed to store the image */
- pal_datasize = loc_pal_size[0] * loc_pal_size[1];
-
- /* copy stuff into a temp buffer and then copy 256*3 elements to palette */
- temp_buf=(void *) malloc((unsigned)(pal_datasize*msize));
- if ( temp_buf==NULL){
- printf( "cannot read into memory\n" );
- return -1;
- }
- /*
- * make sure that the palette is actually 256 X 3 so that we don't
- * create overflows
- */
- if (pal_datasize > 256 * 3) {
- fprintf(stderr , "Palette seems to be more than 256X3 bytes\n");
- fprintf(stderr , "Truncating palette to 256 colors. This might cause a problem with the final image\n");
- pal_datasize = 256 * 3;
- }
-
- /* get the actual palette */
- if (H5Dread(pal_set , pal_mtype_id, H5S_ALL , H5S_ALL , H5P_DEFAULT , temp_buf) < 0) {
- fprintf(stderr , "Unable to read data \n");
- cleanup(*data);
- cleanup(temp_buf);
- return -1;
- }
-
- /* copy stuff into the actual palette */
- memcpy(palette , temp_buf , (size_t)pal_datasize);
-
- /* get rid of the temp memory */
- cleanup(temp_buf);
-
- /* close pal ids */
- H5Dclose(pal_set);
- H5Sclose(pal_space);
- H5Tclose(pal_dtype);
- H5Tclose(pal_mtype_id);
- /* end of if (pal_exist) */
- } else {
- int i;
- /*
- * if palette does not exist we just go ahead and create a uniform
- * greyscale palette
- */
- for (i = 0 ; i < 256 ; i++) {
- palette[i][0] = 255 - i;
- palette[i][1] = 255 - i;
- palette[i][2] = 255 - i;
- }
- }
-
- /* close everything */
- H5Dclose(dset);
- H5Sclose(dspace);
- H5Tclose(dtype);
- H5Tclose(mtype_id);
- H5Fclose(fHfile);
- return 0;
-}
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