diff options
Diffstat (limited to 'hl/tools/gif2h5/readhdf.c')
| -rw-r--r-- | hl/tools/gif2h5/readhdf.c | 77 |
1 files changed, 60 insertions, 17 deletions
diff --git a/hl/tools/gif2h5/readhdf.c b/hl/tools/gif2h5/readhdf.c index 3fc454c..5985812 100644 --- a/hl/tools/gif2h5/readhdf.c +++ b/hl/tools/gif2h5/readhdf.c @@ -12,6 +12,8 @@ * 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 @@ -38,19 +40,26 @@ cleanup(BYTE *ptr) ** 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 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? */ + 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) { @@ -102,17 +111,29 @@ int ReadHDF(BYTE** data, BYTE palette[256][3], hsize_t *image_size, 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)) == NULL) { + if ((*data = (BYTE*) malloc((size_t)datasize*msize)) == NULL) { fprintf(stderr , "Out of memory, exiting"); return -1; } /* get the actual image */ - if (H5Dread(dset , H5Tget_native_type(dtype, H5T_DIR_ASCEND) , H5S_ALL , H5S_ALL , H5P_DEFAULT , *data) < 0) { + if (H5Dread(dset , mtype_id, H5S_ALL , H5S_ALL , H5P_DEFAULT , *data) < 0) { fprintf(stderr , "Unable to read data \n"); cleanup(*data); return -1; @@ -121,8 +142,8 @@ int ReadHDF(BYTE** data, BYTE palette[256][3], hsize_t *image_size, if (pal_exist) { hsize_t loc_pal_size[2]; hsize_t pal_datasize; - BYTE *temp_buf; - hsize_t temp_size; + hid_t pal_mtype_id; + void *temp_buf; /* get the palette dataset */ if ((pal_set = H5Dopen(fHfile , pal_name)) < 0) { @@ -159,13 +180,27 @@ int ReadHDF(BYTE** data, BYTE palette[256][3], hsize_t *image_size, 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_size = H5Dget_storage_size(pal_set); - temp_buf = (BYTE*) malloc ((size_t)temp_size * sizeof(BYTE)); - + 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 @@ -177,7 +212,7 @@ int ReadHDF(BYTE** data, BYTE palette[256][3], hsize_t *image_size, } /* get the actual palette */ - if (H5Dread(pal_set , H5Tget_native_type(pal_dtype, H5T_DIR_ASCEND) , H5S_ALL , H5S_ALL , H5P_DEFAULT , temp_buf) < 0) { + 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); @@ -189,6 +224,12 @@ int ReadHDF(BYTE** data, BYTE palette[256][3], hsize_t *image_size, /* 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; @@ -206,6 +247,8 @@ int ReadHDF(BYTE** data, BYTE palette[256][3], hsize_t *image_size, /* close everything */ H5Dclose(dset); H5Sclose(dspace); + H5Tclose(dtype); + H5Tclose(mtype_id); H5Fclose(fHfile); return 0; } |