diff options
Diffstat (limited to 'src/H5Tnative.c')
| -rw-r--r-- | src/H5Tnative.c | 190 |
1 files changed, 118 insertions, 72 deletions
diff --git a/src/H5Tnative.c b/src/H5Tnative.c index 75b5d03..8d8920b 100644 --- a/src/H5Tnative.c +++ b/src/H5Tnative.c @@ -38,6 +38,8 @@ static H5T_t *H5T_get_native_integer(size_t prec, H5T_sign_t sign, H5T_direction size_t *struct_align, size_t *offset, size_t *comp_size); static H5T_t *H5T_get_native_float(size_t size, H5T_direction_t direction, size_t *struct_align, size_t *offset, size_t *comp_size); +static H5T_t* H5T_get_native_bitfield(size_t prec, H5T_direction_t direction, + size_t *struct_align, size_t *offset, size_t *comp_size); static herr_t H5T_cmp_offset(size_t *comp_size, size_t *offset, size_t elem_size, size_t nelems, size_t align, size_t *struct_align); @@ -108,7 +110,7 @@ H5Tget_native_type(hid_t type_id, H5T_direction_t direction) H5TRACE2("i", "iTd", type_id, direction); /* check argument */ - if(NULL==(dt=H5I_object_verify(type_id, H5I_DATATYPE))) + if(NULL==(dt=(H5T_t *)H5I_object_verify(type_id, H5I_DATATYPE))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a data type") if(direction!=H5T_DIR_DEFAULT && direction!=H5T_DIR_ASCEND @@ -210,13 +212,19 @@ H5T_get_native_type(H5T_t *dtype, H5T_direction_t direction, size_t *struct_alig } break; - /* These 2 types will be supported in the future. Simply return "not supported" + /* The time type will be supported in the future. Simply return "not supported" * message for now.*/ case H5T_TIME: HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "time type is not supported yet") case H5T_BITFIELD: - HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "bit field type is not supported yet") + { + prec = dtype->shared->u.atomic.prec; + + if((ret_value = H5T_get_native_bitfield(prec, direction, struct_align, offset, comp_size))==NULL) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "cannot retrieve integer for bitfield type") + } + break; case H5T_OPAQUE: if((ret_value=H5T_copy(dtype, H5T_COPY_TRANSIENT))==NULL) @@ -237,7 +245,7 @@ H5T_get_native_type(H5T_t *dtype, H5T_direction_t direction, size_t *struct_alig HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "cannot retrieve float type") /* Decide if the data type is object or dataset region reference. */ - if(NULL==(dt=H5I_object(H5T_STD_REF_OBJ_g))) + if(NULL==(dt=(H5T_t *)H5I_object(H5T_STD_REF_OBJ_g))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "not a data type") not_equal = H5T_cmp(ret_value, dt, FALSE); @@ -556,46 +564,19 @@ H5T_get_native_integer(size_t prec, H5T_sign_t sign, H5T_direction_t direction, native_size = sizeof(long long); } } else if(direction == H5T_DIR_DESCEND) { - if(prec>=H5Tget_precision(H5T_NATIVE_LLONG)) { + if(prec>H5Tget_precision(H5T_NATIVE_LONG)) { match=H5T_NATIVE_INT_MATCH_LLONG; native_size = sizeof(long long); - } else if(prec>=H5Tget_precision(H5T_NATIVE_LONG)) { - if(prec==H5Tget_precision(H5T_NATIVE_LONG)) { - match=H5T_NATIVE_INT_MATCH_LONG; - native_size = sizeof(long); - } else { - match=H5T_NATIVE_INT_MATCH_LLONG; - native_size = sizeof(long long); - } - } - else if(prec>=H5Tget_precision(H5T_NATIVE_INT)) { - if(prec==H5Tget_precision(H5T_NATIVE_INT)) { - match=H5T_NATIVE_INT_MATCH_INT; - native_size = sizeof(int); - } else { - match=H5T_NATIVE_INT_MATCH_LONG; - native_size = sizeof(long); - } - } - else if(prec>=H5Tget_precision(H5T_NATIVE_SHORT)) { - if(prec==H5Tget_precision(H5T_NATIVE_SHORT)) { - match=H5T_NATIVE_INT_MATCH_SHORT; - native_size = sizeof(short); - } else { - match=H5T_NATIVE_INT_MATCH_INT; - native_size = sizeof(int); - } - } - else if(prec>=H5Tget_precision(H5T_NATIVE_SCHAR)) { - if(prec==H5Tget_precision(H5T_NATIVE_SCHAR)) { - match=H5T_NATIVE_INT_MATCH_CHAR; - native_size = sizeof(char); - } else { - match=H5T_NATIVE_INT_MATCH_SHORT; - native_size = sizeof(short); - } - } - else { /* If no native type matches the queried datatype, simply choose the type of smallest size. */ + } else if(prec>H5Tget_precision(H5T_NATIVE_INT)) { + match=H5T_NATIVE_INT_MATCH_LONG; + native_size = sizeof(long); + } else if(prec>H5Tget_precision(H5T_NATIVE_SHORT)) { + match=H5T_NATIVE_INT_MATCH_INT; + native_size = sizeof(int); + } else if(prec>H5Tget_precision(H5T_NATIVE_SCHAR)) { + match=H5T_NATIVE_INT_MATCH_SHORT; + native_size = sizeof(short); + } else { match=H5T_NATIVE_INT_MATCH_CHAR; native_size = sizeof(char); } @@ -654,7 +635,7 @@ H5T_get_native_integer(size_t prec, H5T_sign_t sign, H5T_direction_t direction, /* Create new native type */ assert(tid>=0); - if(NULL==(dt=H5I_object(tid))) + if(NULL==(dt=(H5T_t *)H5I_object(tid))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "not a data type") if((ret_value=H5T_copy(dt, H5T_COPY_TRANSIENT))==NULL) @@ -733,46 +714,23 @@ H5T_get_native_float(size_t size, H5T_direction_t direction, size_t *struct_alig } } else { #if H5_SIZEOF_LONG_DOUBLE !=0 - if(size>=sizeof(long double)) { + if(size>sizeof(double)) { match=H5T_NATIVE_FLOAT_MATCH_LDOUBLE; native_size = sizeof(long double); } - else if(size>=sizeof(double)) { - if(size==sizeof(double)) { - match=H5T_NATIVE_FLOAT_MATCH_DOUBLE; - native_size = sizeof(double); - } else { - match=H5T_NATIVE_FLOAT_MATCH_LDOUBLE; - native_size = sizeof(long double); - } - } - else if(size>=sizeof(float)) { - if(size==sizeof(float)) { - match=H5T_NATIVE_FLOAT_MATCH_FLOAT; - native_size = sizeof(float); - } else { - match=H5T_NATIVE_FLOAT_MATCH_DOUBLE; - native_size = sizeof(double); - } + else if(size>sizeof(float)) { + match=H5T_NATIVE_FLOAT_MATCH_DOUBLE; + native_size = sizeof(double); } else { match=H5T_NATIVE_FLOAT_MATCH_FLOAT; native_size = sizeof(float); } #else - if(size>=sizeof(double)) { + if(size>sizeof(float)) { match=H5T_NATIVE_FLOAT_MATCH_DOUBLE; native_size = sizeof(double); } - else if(size>=sizeof(float)) { - if(size==sizeof(float)) { - match=H5T_NATIVE_FLOAT_MATCH_FLOAT; - native_size = sizeof(float); - } else { - match=H5T_NATIVE_FLOAT_MATCH_DOUBLE; - native_size = sizeof(double); - } - } else { match=H5T_NATIVE_FLOAT_MATCH_FLOAT; native_size = sizeof(float); @@ -805,7 +763,7 @@ H5T_get_native_float(size_t size, H5T_direction_t direction, size_t *struct_alig /* Create new native type */ assert(tid>=0); - if(NULL==(dt=H5I_object(tid))) + if(NULL==(dt=(H5T_t *)H5I_object(tid))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "not a data type") if((ret_value=H5T_copy(dt, H5T_COPY_TRANSIENT))==NULL) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "cannot retrieve float type") @@ -820,6 +778,94 @@ done: /*------------------------------------------------------------------------- + * Function: H5T_get_native_bitfield + * + * Purpose: Returns the native bitfield type of a datatype. Bitfield + * is similar to unsigned integer. + * + * Return: Success: Returns the native data type if successful. + * + * Failure: negative + * + * Programmer: Raymond Lu + * 1 December 2009 + * + * Modifications: + * + *------------------------------------------------------------------------- + */ +static H5T_t* +H5T_get_native_bitfield(size_t prec, H5T_direction_t direction, size_t *struct_align, + size_t *offset, size_t *comp_size) +{ + H5T_t *dt; /* Appropriate native datatype to copy */ + hid_t tid=(-1); /* Datatype ID of appropriate native datatype */ + size_t align=0; /* Alignment necessary for native datatype */ + size_t native_size=0; /* Datatype size of the native type */ + H5T_t *ret_value; /* Return value */ + + FUNC_ENTER_NOAPI(H5T_get_native_bitfield, NULL); + + if(direction == H5T_DIR_DEFAULT || direction == H5T_DIR_ASCEND) { + if(prec<=H5Tget_precision(H5T_NATIVE_B8)) { + tid = H5T_NATIVE_B8; + native_size = 1; + align = H5T_NATIVE_UINT8_ALIGN_g; + } else if(prec<=H5Tget_precision(H5T_NATIVE_B16)) { + tid = H5T_NATIVE_B16; + native_size = 2; + align = H5T_NATIVE_UINT16_ALIGN_g; + } else if(prec<=H5Tget_precision(H5T_NATIVE_B32)) { + tid = H5T_NATIVE_B32; + native_size = 4; + align = H5T_NATIVE_UINT32_ALIGN_g; + } else if(prec<=H5Tget_precision(H5T_NATIVE_B64)) { + tid = H5T_NATIVE_B64; + native_size = 8; + align = H5T_NATIVE_UINT64_ALIGN_g; + } else { /* If no native type matches the querried datatype, simply choose the type of biggest size. */ + tid = H5T_NATIVE_B64; + native_size = 8; + align = H5T_NATIVE_UINT64_ALIGN_g; + } + } else if(direction == H5T_DIR_DESCEND) { + if(prec>H5Tget_precision(H5T_NATIVE_B32)) { + tid = H5T_NATIVE_B64; + native_size = 8; + align = H5T_NATIVE_UINT64_ALIGN_g; + } else if(prec>H5Tget_precision(H5T_NATIVE_B16)) { + tid = H5T_NATIVE_B32; + native_size = 4; + align = H5T_NATIVE_UINT32_ALIGN_g; + } else if(prec>H5Tget_precision(H5T_NATIVE_B8)) { + tid = H5T_NATIVE_B16; + native_size = 2; + align = H5T_NATIVE_UINT16_ALIGN_g; + } else { + tid = H5T_NATIVE_B8; + native_size = 1; + align = H5T_NATIVE_UINT8_ALIGN_g; + } + } + + /* Create new native type */ + assert(tid>=0); + if(NULL==(dt=(H5T_t *)H5I_object(tid))) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "not a data type") + + if((ret_value=H5T_copy(dt, H5T_COPY_TRANSIENT))==NULL) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "cannot copy type") + + /* compute size and offset of compound type member. */ + if(H5T_cmp_offset(comp_size, offset, native_size, (size_t)1, align, struct_align)<0) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "cannot compute compound offset") + +done: + FUNC_LEAVE_NOAPI(ret_value) +} + + +/*------------------------------------------------------------------------- * Function: H5T_cmp_offset * * Purpose: This function is only for convenience. It computes the |