99d84a8f4c
Fixed a read-uninitialized-memory error that resulted in the file containing small amounts (<8 bytes each) of uninitialized data. These padding areas (which are never read by hdf5) are initialized to zero now. ./MANIFEST ./src/H5Z.c ./src/H5Zdeflate.c [NEW] ./src/H5Zprivate.h ./src/H5Zpublic.h ./src/Makefile.in The zlib filter was moved to a separate file but is still automatically defined.
67 lines
2.3 KiB
C
67 lines
2.3 KiB
C
/*
|
|
* Copyright (C) 1998 NCSA
|
|
* All rights reserved.
|
|
*
|
|
* Programmer: Robb Matzke <matzke@llnl.gov>
|
|
* Thursday, April 16, 1998
|
|
*/
|
|
#ifndef _H5Zpublic_H
|
|
#define _H5Zpublic_H
|
|
|
|
/*
|
|
* Filter identifiers. Values 0 through 255 are for filters defined by the
|
|
* HDF5 library. Values 256 through 511 are available for testing new
|
|
* filters. Subsequent values should be obtained from the HDF5 development
|
|
* team at hdf5dev@ncsa.uiuc.edu. These values will never change because they
|
|
* appear in the HDF5 files.
|
|
*/
|
|
typedef int H5Z_filter_t;
|
|
#define H5Z_FILTER_ERROR (-1) /*no filter */
|
|
#define H5Z_FILTER_NONE 0 /*reserved indefinitely */
|
|
#define H5Z_FILTER_DEFLATE 1 /*deflation like gzip */
|
|
#define H5Z_FILTER_MAX 65535 /*maximum filter id */
|
|
|
|
/* Flags for filter definition */
|
|
#define H5Z_FLAG_DEFMASK 0x00ff /*definition flag mask */
|
|
#define H5Z_FLAG_OPTIONAL 0x0001 /*filter is optional */
|
|
|
|
/* Additional flags for filter invocation */
|
|
#define H5Z_FLAG_INVMASK 0xff00 /*invocation flag mask */
|
|
#define H5Z_FLAG_REVERSE 0x0100 /*reverse direction; read */
|
|
|
|
/*
|
|
* A filter gets definition flags and invocation flags (defined above), the
|
|
* client data array and size defined when the filter was added to the
|
|
* pipeline, the size in bytes of the data on which to operate, and pointers
|
|
* to a buffer and its allocated size.
|
|
*
|
|
* The filter should store the result in the supplied buffer if possible,
|
|
* otherwise it can allocate a new buffer, freeing the original. The
|
|
* allocated size of the new buffer should be returned through the BUF_SIZE
|
|
* pointer and the new buffer through the BUF pointer.
|
|
*
|
|
* The return value from the filter is the number of bytes in the output
|
|
* buffer. If an error occurs then the function should return zero and leave
|
|
* all pointer arguments unchanged.
|
|
*/
|
|
typedef size_t (*H5Z_func_t)(unsigned int flags, size_t cd_nelmts,
|
|
const unsigned int cd_values[], size_t nbytes,
|
|
size_t *buf_size, void **buf);
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
__DLL__ herr_t H5Zregister(H5Z_filter_t id, const char *comment,
|
|
H5Z_func_t filter);
|
|
|
|
size_t H5Z_filter_deflate(unsigned flags, size_t cd_nelmts,
|
|
const unsigned cd_values[], size_t nbytes,
|
|
size_t *buf_size, void **buf);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif
|
|
|