diff options
Diffstat (limited to 'src/H5Shyper.c')
| -rw-r--r-- | src/H5Shyper.c | 112 |
1 files changed, 42 insertions, 70 deletions
diff --git a/src/H5Shyper.c b/src/H5Shyper.c index 2c7502a..ab06eff 100644 --- a/src/H5Shyper.c +++ b/src/H5Shyper.c @@ -194,6 +194,7 @@ static htri_t H5S__hyper_shape_same(const H5S_t *space1, const H5S_t *space2); static htri_t H5S__hyper_intersect_block(const H5S_t *space, const hsize_t *start, const hsize_t *end); static herr_t H5S__hyper_adjust_u(H5S_t *space, const hsize_t *offset); +static herr_t H5S__hyper_adjust_s(H5S_t *space, const hssize_t *offset); static herr_t H5S__hyper_project_scalar(const H5S_t *space, hsize_t *offset); static herr_t H5S__hyper_project_simple(const H5S_t *space, H5S_t *new_space, hsize_t *offset); static herr_t H5S__hyper_iter_init(const H5S_t *space, H5S_sel_iter_t *iter); @@ -240,6 +241,7 @@ const H5S_select_class_t H5S_sel_hyper[1] = {{ H5S__hyper_shape_same, H5S__hyper_intersect_block, H5S__hyper_adjust_u, + H5S__hyper_adjust_s, H5S__hyper_project_scalar, H5S__hyper_project_simple, H5S__hyper_iter_init, @@ -6475,39 +6477,50 @@ H5S__hyper_adjust_u_helper(H5S_hyper_span_info_t *spans, unsigned rank, static herr_t H5S__hyper_adjust_u(H5S_t *space, const hsize_t *offset) { + hbool_t non_zero_offset = FALSE; /* Whether any offset is non-zero */ + unsigned u; /* Local index variable */ + FUNC_ENTER_STATIC_NOERR /* Sanity check */ HDassert(space); HDassert(offset); - /* Subtract the offset from the "regular" coordinates, if they exist */ - /* (No need to rebuild the dimension info yet -QAK) */ - if(space->select.sel_info.hslab->diminfo_valid == H5S_DIMINFO_VALID_YES) { - unsigned u; /* Local index variable */ + /* Check for an all-zero offset vector */ + for(u = 0; u < space->extent.rank; u++) + if(0 != offset[u]) { + non_zero_offset = TRUE; + break; + } /* end if */ - for(u = 0; u < space->extent.rank; u++) { - HDassert(space->select.sel_info.hslab->diminfo.opt[u].start >= offset[u]); - space->select.sel_info.hslab->diminfo.opt[u].start -= offset[u]; + /* Only perform operation if the offset is non-zero */ + if(non_zero_offset) { + /* Subtract the offset from the "regular" coordinates, if they exist */ + /* (No need to rebuild the dimension info yet -QAK) */ + if(space->select.sel_info.hslab->diminfo_valid == H5S_DIMINFO_VALID_YES) { + for(u = 0; u < space->extent.rank; u++) { + HDassert(space->select.sel_info.hslab->diminfo.opt[u].start >= offset[u]); + space->select.sel_info.hslab->diminfo.opt[u].start -= offset[u]; - /* Adjust the low & high bounds */ - HDassert(space->select.sel_info.hslab->diminfo.low_bounds[u] >= offset[u]); - space->select.sel_info.hslab->diminfo.low_bounds[u] -= offset[u]; - space->select.sel_info.hslab->diminfo.high_bounds[u] -= offset[u]; - } /* end for */ - } /* end if */ + /* Adjust the low & high bounds */ + HDassert(space->select.sel_info.hslab->diminfo.low_bounds[u] >= offset[u]); + space->select.sel_info.hslab->diminfo.low_bounds[u] -= offset[u]; + space->select.sel_info.hslab->diminfo.high_bounds[u] -= offset[u]; + } /* end for */ + } /* end if */ - /* Subtract the offset from the span tree coordinates, if they exist */ - if(space->select.sel_info.hslab->span_lst) { - uint64_t op_gen; /* Operation generation value */ + /* Subtract the offset from the span tree coordinates, if they exist */ + if(space->select.sel_info.hslab->span_lst) { + uint64_t op_gen; /* Operation generation value */ - /* Acquire an operation generation value for this operation */ - op_gen = H5S__hyper_get_op_gen(); + /* Acquire an operation generation value for this operation */ + op_gen = H5S__hyper_get_op_gen(); - /* Perform adjustment */ - /* Always use op_info[0] since we own this op_info, so there can be no - * simultaneous operations */ - H5S__hyper_adjust_u_helper(space->select.sel_info.hslab->span_lst, space->extent.rank, offset, 0, op_gen); + /* Perform adjustment */ + /* Always use op_info[0] since we own this op_info, so there can be no + * simultaneous operations */ + H5S__hyper_adjust_u_helper(space->select.sel_info.hslab->span_lst, space->extent.rank, offset, 0, op_gen); + } /* end if */ } /* end if */ FUNC_LEAVE_NOAPI(SUCCEED) @@ -6980,11 +6993,11 @@ H5S__hyper_adjust_s_helper(H5S_hyper_span_info_t *spans, unsigned rank, /*-------------------------------------------------------------------------- NAME - H5S_hyper_adjust_s + H5S__hyper_adjust_s PURPOSE Adjust a hyperslab selection by subtracting an offset USAGE - herr_t H5S_hyper_adjust_s(space,offset) + herr_t H5S__hyper_adjust_s(space,offset) H5S_t *space; IN/OUT: Pointer to dataspace to adjust const hssize_t *offset; IN: Offset to subtract RETURNS @@ -6996,8 +7009,8 @@ H5S__hyper_adjust_s_helper(H5S_hyper_span_info_t *spans, unsigned rank, EXAMPLES REVISION LOG --------------------------------------------------------------------------*/ -herr_t -H5S_hyper_adjust_s(H5S_t *space, const hssize_t *offset) +static herr_t +H5S__hyper_adjust_s(H5S_t *space, const hssize_t *offset) { hbool_t non_zero_offset = FALSE; /* Whether any offset is non-zero */ unsigned u; /* Local index variable */ @@ -7048,48 +7061,7 @@ H5S_hyper_adjust_s(H5S_t *space, const hssize_t *offset) done: FUNC_LEAVE_NOAPI(ret_value) -} /* end H5S_hyper_adjust_s() */ - -/*-------------------------------------------------------------------------- - NAME - H5Shyper_adjust_s - PURPOSE - Adjust a hyperslab selection by subtracting an offset - USAGE - herr_t H5Shyper_adjust_s(space_id,offset) - hid_t space_id; IN: ID of the dataspace to adjust - const hssize_t *offset; IN: Offset to subtract - RETURNS - Non-negative on success, negative on failure - DESCRIPTION - Moves a hyperslab selection by subtracting an offset from it. - GLOBAL VARIABLES - COMMENTS, BUGS, ASSUMPTIONS - EXAMPLES - REVISION LOG ---------------------------------------------------------------------------*/ -herr_t -H5Shyper_adjust_s(hid_t space_id, const hssize_t *offset) -{ - H5S_t *space; - herr_t ret_value = SUCCEED; /* Return value */ - - FUNC_ENTER_API(FAIL) - H5TRACE2("e", "i*Hs", space_id, offset); - - if(NULL == (space = (H5S_t *)H5I_object_verify(space_id, H5I_DATASPACE))) - HGOTO_ERROR(H5E_DATASPACE, H5E_BADTYPE, FAIL, "not a dataspace") - if(H5S_GET_SELECT_TYPE(space) != H5S_SEL_HYPERSLABS) - HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a hyperslab selection") - if(NULL == offset) - HGOTO_ERROR(H5E_DATASPACE, H5E_BADTYPE, FAIL, "NULL offset pointer") - - if(H5S_hyper_adjust_s(space, offset) < 0) - HGOTO_ERROR(H5E_DATASPACE, H5E_CANTSET, FAIL, "can't adjust selection") - -done: - FUNC_LEAVE_API(ret_value) -} /* end H5Shyper_adjust_s() */ +} /* end H5S__hyper_adjust_s() */ /*-------------------------------------------------------------------------- @@ -7135,7 +7107,7 @@ H5S_hyper_normalize_offset(H5S_t *space, hssize_t *old_offset) } /* end for */ /* Call the 'adjust' routine */ - if(H5S_hyper_adjust_s(space, space->select.offset) < 0) + if(H5S__hyper_adjust_s(space, space->select.offset) < 0) HGOTO_ERROR(H5E_DATASPACE, H5E_CANTSET, FAIL, "can't adjust selection") /* Zero out the selection offset */ @@ -7183,7 +7155,7 @@ H5S_hyper_denormalize_offset(H5S_t *space, const hssize_t *old_offset) HDassert(H5S_GET_SELECT_TYPE(space) == H5S_SEL_HYPERSLABS); /* Call the 'adjust' routine */ - if(H5S_hyper_adjust_s(space, old_offset) < 0) + if(H5S__hyper_adjust_s(space, old_offset) < 0) HGOTO_ERROR(H5E_DATASPACE, H5E_CANTSET, FAIL, "can't adjust selection") /* Copy the selection offset over */ |