mirror/hdf5
2
0
Fork 0
mirror of https://github.com/HDFGroup/hdf5.git synced 2025-01-18 15:15:56 +08:00
Code Issues Packages Projects Releases Wiki Activity

[svn-r9009] Purpose:

Browse Source 
Update Szip to accept 'n-bit' data

Description:
See earlier checkins.

Solution:

Platforms tested:

Misc. update:
This commit is contained in:
Robert E. McGrath 2004-08-04 10:59:02 -05:00
parent 5585cbae21
commit 2491ee240d
1 changed files with 26 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
src/H5Zszip.c
View File

@ -148,6 +148,9 @@ H5Z_set_local_szip(hid_t dcpl_id, hid_t type_id, hid_t space_id)
hsize_t dims[H5O_LAYOUT_NDIMS]; /* Dataspace (i.e. chunk) dimensions */
int ndims; /* Number of (chunk) dimensions */
H5T_order_t dtype_order; /* Datatype's endianness order */
int dtype_size; /* Datatype's size (in bits) */
size_t dtype_precision; /* Datatype's precision (in bits) */
size_t dtype_offset; /* Datatype's offset (in bits) */
hsize_t scanline; /* Size of dataspace's fastest changing dimension */
herr_t ret_value=SUCCEED; /* Return value */
@ -161,9 +164,30 @@ H5Z_set_local_szip(hid_t dcpl_id, hid_t type_id, hid_t space_id)
#endif
HGOTO_ERROR(H5E_PLINE, H5E_CANTGET, FAIL, "can't get szip parameters")
/* Get datatype's size, for checking the "bits-per-pixel" */
if((dtype_size=(8*H5Tget_size(type_id)))==0)
HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, FAIL, "bad datatype size");
/* Get datatype's precision, in case is less than full bits */
if((dtype_precision=H5Tget_precision(type_id))==0)
HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, FAIL, "bad datatype precision");
if(dtype_precision<dtype_size) {
dtype_offset=H5Tget_offset(type_id);
if(dtype_offset != 0) {
dtype_precision=dtype_size;
}
}
if (dtype_precision>24) {
if (dtype_precision <= 32) {
dtype_precision=32;
} else if ( dtype_precision <= 64) {
dtype_precision=64;
}
}
/* Set "local" parameter for this dataset's "bits-per-pixel" */
if((cd_values[H5Z_SZIP_PARM_BPP]=(8*sizeof(unsigned char)*H5Tget_size(type_id)))==0)
HGOTO_ERROR(H5E_PLINE, H5E_BADTYPE, FAIL, "bad datatype size")
cd_values[H5Z_SZIP_PARM_BPP]=dtype_precision;
/* Get dimensions for dataspace */
if ((ndims=H5Sget_simple_extent_dims(space_id, dims, NULL))<0)