diff options
Diffstat (limited to 'src/H5Z.c')
| -rw-r--r-- | src/H5Z.c | 130 |
1 files changed, 0 insertions, 130 deletions
@@ -13,10 +13,6 @@ #include <H5Oprivate.h> #include <H5Zprivate.h> -#ifdef HAVE_ZLIB_H -# include <zlib.h> -#endif - /* Interface initialization */ #define PABLO_MASK H5Z_mask #define INTERFACE_INIT H5Z_init_interface @@ -27,10 +23,6 @@ static size_t H5Z_table_alloc_g = 0; static size_t H5Z_table_used_g = 0; static H5Z_class_t *H5Z_table_g = NULL; -/* Predefined filters */ -static size_t H5Z_filter_deflate(uintn flags, size_t cd_nelmts, - const uintn cd_values[], size_t nbytes, - size_t *buf_size, void **buf); /*------------------------------------------------------------------------- @@ -479,125 +471,3 @@ H5Z_pipeline(H5F_t UNUSED *f, const H5O_pline_t *pline, uintn flags, FUNC_LEAVE(SUCCEED); } - -/*------------------------------------------------------------------------- - * Function: H5Z_filter_deflate - * - * Purpose: - * - * Return: Success: - * - * Failure: - * - * Programmer: Robb Matzke - * Thursday, April 16, 1998 - * - * Modifications: - * - *------------------------------------------------------------------------- - */ -static size_t -H5Z_filter_deflate (uintn flags, size_t cd_nelmts, const uintn cd_values[], - size_t nbytes, size_t *buf_size, void **buf) -{ - size_t ret_value = 0; - void *outbuf = NULL; -#if defined(HAVE_COMPRESS2) - int aggression = 6; - int status; -#endif - - FUNC_ENTER (H5Z_filter_deflate, 0); - - /* Check arguments */ - if (cd_nelmts!=1 || cd_values[0]>9) { - HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, 0, - "invalid deflate aggression level"); - } - -#if defined(HAVE_COMPRESS2) - aggression = cd_values[0]; - if (flags & H5Z_FLAG_REVERSE) { - /* Input; uncompress */ - z_stream z_strm; - size_t nalloc = *buf_size; - - if (NULL==(outbuf = H5MM_malloc(nalloc))) { - HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, 0, - "memory allocation failed for deflate uncompression"); - } - HDmemset(&z_strm, 0, sizeof(z_strm)); - z_strm.next_in = *buf; - z_strm.avail_in = nbytes; - z_strm.next_out = outbuf; - z_strm.avail_out = nalloc; - if (Z_OK!=inflateInit(&z_strm)) { - HGOTO_ERROR(H5E_PLINE, H5E_CANTINIT, 0, "inflateInit() failed"); - } - while (1) { - status = inflate(&z_strm, Z_SYNC_FLUSH); - if (Z_STREAM_END==status) break; /*done*/ - if (Z_OK!=status) { - inflateEnd(&z_strm); - HGOTO_ERROR(H5E_PLINE, H5E_CANTINIT, 0, "inflate() failed"); - } - if (Z_OK==status && 0==z_strm.avail_out) { - nalloc *= 2; - if (NULL==(outbuf = H5MM_realloc(outbuf, nalloc))) { - inflateEnd(&z_strm); - HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, 0, - "memory allocation failed for deflate " - "uncompression"); - } - z_strm.next_out = (char*)outbuf + z_strm.total_out; - z_strm.avail_out = nalloc - z_strm.total_out; - } - } - - H5MM_xfree(*buf); - *buf = outbuf; - outbuf = NULL; - *buf_size = nalloc; - ret_value = z_strm.total_out; - inflateEnd(&z_strm); - - } else { - /* - * Output; compress but fail if the result would be larger than the - * input. The library doesn't provide in-place compression, so we - * must allocate a separate buffer for the result. - */ - const Bytef *z_src = (const Bytef*)(*buf); - Bytef *z_dst; /*destination buffer */ - uLongf z_dst_nbytes = (uLongf)nbytes; - uLong z_src_nbytes = (uLong)nbytes; - - if (NULL==(z_dst=outbuf=H5MM_malloc(nbytes))) { - HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, 0, - "unable to allocate deflate destination buffer"); - } - status = compress2 (z_dst, &z_dst_nbytes, z_src, z_src_nbytes, - aggression); - if (Z_BUF_ERROR==status) { - HGOTO_ERROR(H5E_PLINE, H5E_CANTINIT, 0, "overflow"); - } else if (Z_MEM_ERROR==status) { - HGOTO_ERROR (H5E_PLINE, H5E_CANTINIT, 0, "deflate memory error"); - } else if (Z_OK!=status) { - HGOTO_ERROR (H5E_PLINE, H5E_CANTINIT, 0, "deflate error"); - } else { - H5MM_xfree(*buf); - *buf = outbuf; - outbuf = NULL; - *buf_size = nbytes; - ret_value = z_dst_nbytes; - } - } -#else - HGOTO_ERROR (H5E_PLINE, H5E_UNSUPPORTED, 0, - "hdf5 was not compiled with zlib-1.0.2 or better"); -#endif - - done: - H5MM_xfree(outbuf); - FUNC_LEAVE (ret_value); -} |