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-rw-r--r--hl/tools/gif2h5/readhdf.c308
1 files changed, 156 insertions, 152 deletions
diff --git a/hl/tools/gif2h5/readhdf.c b/hl/tools/gif2h5/readhdf.c
index 76bfb86..912c2c6 100644
--- a/hl/tools/gif2h5/readhdf.c
+++ b/hl/tools/gif2h5/readhdf.c
@@ -1,19 +1,25 @@
+/*
+ * Copyright (C) 2001 National Center for Supercomputing Applications
+ * All rights reserved.
+ */
#include "gif.h"
/* just a small cleanup routine before we leave */
-void cleanup(BYTE *ptr) {
- if (ptr)
- free(ptr);
+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
+/* 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
@@ -24,146 +30,144 @@ void cleanup(BYTE *ptr) {
** palette and throws it in.
**
*/
-int ReadHDF(BYTE** data ,
- BYTE palette[256][3] ,
- hsize_t *image_size ,
- CHAR *h5_file ,
- CHAR *dset_name ,
- CHAR *pal_name)
+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 */
- herr_t status; /* status variable */
- hid_t dspace; /* dataspace identifier for the the dataset */
- hid_t dset; /* dataset identifier */
- hid_t pal_set; /* dataset for palette */
- hid_t pal_space;/* dataspace 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;
- }
-
- /* 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) !=2 ) {
- fprintf(stderr , "Unable to get dimension info\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)) == NULL) {
- fprintf(stderr , "Out of memory, exiting");
- return -1;
- }
-
- /* get the actual image */
- if ((status = H5Dread(dset , H5Dget_type(dset) , 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;
- BYTE *temp_buf;
- hsize_t temp_size;
-
- /* get the palette dataset */
- if ((pal_set = H5Dopen(fHfile , pal_name)) < 0) {
- fprintf(stderr , "Unable to open dataset\n");
- pal_exist = 0;
- 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;
- }
-
- /* 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_size = H5Dget_storage_size(pal_set);
-
- temp_buf = (BYTE*) malloc ((size_t)temp_size * sizeof(BYTE));
-
- /* 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 ((status = H5Dread(pal_set , H5Dget_type(pal_set) , 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);
- /* 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 */
- status = H5Dclose(dset);
- status = H5Sclose(dspace);
- status = H5Fclose(fHfile);
-
- return 0;
+ hid_t fHfile; /* H5 file to open */
+ herr_t status; /* status variable */
+ hid_t dspace; /* dataspace identifier for the the dataset */
+ hid_t dset; /* dataset identifier */
+ hid_t pal_set; /* dataset for palette */
+ hid_t pal_space; /* dataspace 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;
+ }
+
+ /* 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) !=2 ) {
+ fprintf(stderr , "Unable to get dimension info\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)) == NULL) {
+ fprintf(stderr , "Out of memory, exiting");
+ return -1;
+ }
+
+ /* get the actual image */
+ if ((status = H5Dread(dset , H5Dget_type(dset) , 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;
+ BYTE *temp_buf;
+ hsize_t temp_size;
+
+ /* get the palette dataset */
+ if ((pal_set = H5Dopen(fHfile , pal_name)) < 0) {
+ fprintf(stderr , "Unable to open dataset\n");
+ pal_exist = 0;
+ 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;
+ }
+
+ /* 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_size = H5Dget_storage_size(pal_set);
+ temp_buf = (BYTE*) malloc ((size_t)temp_size * sizeof(BYTE));
+
+ /*
+ * 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 ((status = H5Dread(pal_set , H5Dget_type(pal_set) , 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);
+ /* 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 */
+ status = H5Dclose(dset);
+ status = H5Sclose(dspace);
+ status = H5Fclose(fHfile);
+ return 0;
}
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