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-rw-r--r--src/H5Tconv.c122
1 files changed, 103 insertions, 19 deletions
diff --git a/src/H5Tconv.c b/src/H5Tconv.c
index be72c81..436a8e7 100644
--- a/src/H5Tconv.c
+++ b/src/H5Tconv.c
@@ -3540,6 +3540,9 @@ done:
* Oops, forgot to increment the exponent when rounding the
* significand resulted in a carry. Thanks to Guillaume Colin
* de Verdiere for finding this one!
+ *
+ * Raymond Lu, 2006-03-13
+ * Added support for VAX floating-point types.
*-------------------------------------------------------------------------
*/
herr_t
@@ -3555,11 +3558,13 @@ H5T_conv_f_f (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
int direction; /*forward or backward traversal */
size_t elmtno; /*element number */
size_t half_size; /*half the type size */
+ size_t tsize; /*type size for swapping bytes */
size_t olap; /*num overlapping elements */
ssize_t bitno = 0; /*bit number */
uint8_t *s, *sp, *d, *dp; /*source and dest traversal ptrs*/
uint8_t *src_rev=NULL; /*order-reversed source buffer */
uint8_t dbuf[64]; /*temp destination buffer */
+ uint8_t tmp1, tmp2; /*temp variables for swapping bytes*/
/* Conversion-related variables */
hssize_t expo; /*exponent */
@@ -3587,9 +3592,9 @@ H5T_conv_f_f (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
HGOTO_ERROR (H5E_ARGS, H5E_BADTYPE, FAIL, "not a data type");
src = src_p->shared->u.atomic;
dst = dst_p->shared->u.atomic;
- if (H5T_ORDER_LE!=src.order && H5T_ORDER_BE!=src.order)
+ if (H5T_ORDER_LE!=src.order && H5T_ORDER_BE!=src.order && H5T_ORDER_VAX!=src.order)
HGOTO_ERROR (H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unsupported byte order");
- if (H5T_ORDER_LE!=dst.order && H5T_ORDER_BE!=dst.order)
+ if (H5T_ORDER_LE!=dst.order && H5T_ORDER_BE!=dst.order && H5T_ORDER_VAX!=dst.order)
HGOTO_ERROR (H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unsupported byte order");
if (dst_p->shared->size>sizeof(dbuf))
HGOTO_ERROR (H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "destination size is too large");
@@ -3681,9 +3686,23 @@ H5T_conv_f_f (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
if (H5T_ORDER_BE==src.order) {
half_size = src_p->shared->size/2;
for (i=0; i<half_size; i++) {
- uint8_t tmp = s[src_p->shared->size-(i+1)];
+ tmp1 = s[src_p->shared->size-(i+1)];
s[src_p->shared->size-(i+1)] = s[i];
- s[i] = tmp;
+ s[i] = tmp1;
+ }
+ } else if (H5T_ORDER_VAX==src.order) {
+ tsize = src_p->shared->size;
+ assert(0 == tsize % 2);
+
+ for (i = 0; i < tsize; i += 4) {
+ tmp1 = s[i];
+ tmp2 = s[i+1];
+
+ s[i] = s[(tsize-2)-i];
+ s[i+1] = s[(tsize-1)-i];
+
+ s[(tsize-2)-i] = tmp1;
+ s[(tsize-1)-i] = tmp2;
}
}
@@ -3771,6 +3790,9 @@ H5T_conv_f_f (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
goto padding;
+#ifdef VMS
+ } /*Temporary solution to handle VAX special values*/
+#else /*VMS*/
} else if (H5T_bit_find (s, src.u.f.epos, src.u.f.esize,
H5T_BIT_LSB, FALSE)<0) {
/* NaN */
@@ -3796,6 +3818,7 @@ H5T_conv_f_f (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
goto padding;
}
+#endif /*VMS*/
/*
* Get the exponent as an unsigned quantity from the section of
@@ -4024,6 +4047,20 @@ H5T_conv_f_f (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
d[dst_p->shared->size-(i+1)] = d[i];
d[i] = tmp;
}
+ } else if (H5T_ORDER_VAX==dst.order && reverse) {
+ tsize = dst_p->shared->size;
+ assert(0 == tsize % 2);
+
+ for (i = 0; i < tsize; i += 4) {
+ tmp1 = d[i];
+ tmp2 = d[i+1];
+
+ d[i] = d[(tsize-2)-i];
+ d[i+1] = d[(tsize-1)-i];
+
+ d[(tsize-2)-i] = tmp1;
+ d[(tsize-1)-i] = tmp2;
+ }
}
/*
@@ -9434,6 +9471,9 @@ done:
* There is a new design for exception handling like overflow,
* which is passed in as a transfer property.
*
+ * Raymond Lu
+ * Monday, March 13, 2006
+ * Added support for VAX floating-point types.
*-------------------------------------------------------------------------
*/
herr_t
@@ -9449,10 +9489,12 @@ H5T_conv_f_i (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
int direction; /*forward or backward traversal */
size_t elmtno; /*element number */
size_t half_size; /*half the type size */
+ size_t tsize; /*type size for swapping bytes */
size_t olap; /*num overlapping elements */
uint8_t *s, *sp, *d, *dp; /*source and dest traversal ptrs*/
uint8_t *src_rev=NULL; /*order-reversed source buffer */
uint8_t dbuf[64]; /*temp destination buffer */
+ uint8_t tmp1, tmp2; /*temp variables for swapping bytes*/
/* Conversion-related variables */
hssize_t expo; /*source exponent */
@@ -9478,7 +9520,7 @@ H5T_conv_f_i (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
HGOTO_ERROR (H5E_ARGS, H5E_BADTYPE, FAIL, "not a data type");
src = src_p->shared->u.atomic;
dst = dst_p->shared->u.atomic;
- if (H5T_ORDER_LE!=src.order && H5T_ORDER_BE!=src.order)
+ if (H5T_ORDER_LE!=src.order && H5T_ORDER_BE!=src.order && H5T_ORDER_VAX!=src.order)
HGOTO_ERROR (H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unsupported byte order");
if (dst_p->shared->size>sizeof(dbuf))
HGOTO_ERROR (H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "destination size is too large");
@@ -9575,9 +9617,23 @@ H5T_conv_f_i (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
if (H5T_ORDER_BE==src.order) {
half_size = src_p->shared->size/2;
for (i=0; i<half_size; i++) {
- uint8_t tmp = s[src_p->shared->size-(i+1)];
+ tmp1 = s[src_p->shared->size-(i+1)];
s[src_p->shared->size-(i+1)] = s[i];
- s[i] = tmp;
+ s[i] = tmp1;
+ }
+ } else if (H5T_ORDER_VAX==src.order) {
+ tsize = src_p->shared->size;
+ assert(0 == tsize % 2);
+
+ for (i = 0; i < tsize; i += 4) {
+ tmp1 = s[i];
+ tmp2 = s[i+1];
+
+ s[i] = s[(tsize-2)-i];
+ s[i+1] = s[(tsize-1)-i];
+
+ s[(tsize-2)-i] = tmp1;
+ s[(tsize-1)-i] = tmp2;
}
}
@@ -9945,9 +10001,9 @@ H5T_conv_f_i (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
if (H5T_ORDER_BE==dst.order && reverse) {
half_size = dst_p->shared->size/2;
for (i=0; i<half_size; i++) {
- uint8_t tmp = d[dst_p->shared->size-(i+1)];
+ tmp1 = d[dst_p->shared->size-(i+1)];
d[dst_p->shared->size-(i+1)] = d[i];
- d[i] = tmp;
+ d[i] = tmp1;
}
}
@@ -10002,7 +10058,10 @@ done:
* Wednesday, April 21, 2004
* There is a new design for exception handling like overflow,
* which is passed in as a transfer property.
- *
+ *
+ * Raymond Lu
+ * Monday, March 13, 2006
+ * Added support for VAX floating-point types.
*-------------------------------------------------------------------------
*/
herr_t
@@ -10018,11 +10077,13 @@ H5T_conv_i_f (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
int direction; /*forward or backward traversal */
size_t elmtno; /*element number */
size_t half_size; /*half the type size */
+ size_t tsize; /*type size for swapping bytes */
size_t olap; /*num overlapping elements */
uint8_t *s, *sp, *d, *dp; /*source and dest traversal ptrs*/
uint8_t *src_rev=NULL; /*order-reversed source buffer */
uint8_t dbuf[64]; /*temp destination buffer */
-
+ uint8_t tmp1, tmp2; /*temp variables for swapping bytes*/
+
/* Conversion-related variables */
hsize_t expo; /*destination exponent */
hsize_t expo_max; /*maximal possible exponent value */
@@ -10049,7 +10110,7 @@ H5T_conv_i_f (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
HGOTO_ERROR (H5E_ARGS, H5E_BADTYPE, FAIL, "not a data type");
src = src_p->shared->u.atomic;
dst = dst_p->shared->u.atomic;
- if (H5T_ORDER_LE!=dst.order && H5T_ORDER_BE!=dst.order)
+ if (H5T_ORDER_LE!=dst.order && H5T_ORDER_BE!=dst.order && H5T_ORDER_VAX!=dst.order)
HGOTO_ERROR (H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unsupported byte order");
if (dst_p->shared->size>sizeof(dbuf))
HGOTO_ERROR (H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "destination size is too large");
@@ -10152,9 +10213,9 @@ H5T_conv_i_f (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
if (H5T_ORDER_BE==src.order) {
half_size = src_p->shared->size/2;
for (i=0; i<half_size; i++) {
- uint8_t tmp = s[src_p->shared->size-(i+1)];
+ tmp1 = s[src_p->shared->size-(i+1)];
s[src_p->shared->size-(i+1)] = s[i];
- s[i] = tmp;
+ s[i] = tmp1;
}
}
@@ -10360,6 +10421,20 @@ H5T_conv_i_f (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
d[dst_p->shared->size-(i+1)] = d[i];
d[i] = tmp;
}
+ } else if (H5T_ORDER_VAX==dst.order && reverse) {
+ tsize = dst_p->shared->size;
+ assert(0 == tsize % 2);
+
+ for (i = 0; i < tsize; i += 4) {
+ tmp1 = d[i];
+ tmp2 = d[i+1];
+
+ d[i] = d[(tsize-2)-i];
+ d[i+1] = d[(tsize-1)-i];
+
+ d[(tsize-2)-i] = tmp1;
+ d[(tsize-1)-i] = tmp2;
+ }
}
/*
@@ -10398,8 +10473,8 @@ done:
* Function: H5T_reverse_order
*
* Purpose: Internal assisting function to reverse the order of
- * a sequence of byte when it's big endian. The byte sequence
- * simulates the endian order.
+ * a sequence of byte when it's big endian or VAX order.
+ * The byte sequence simulates the endian order.
*
* Return: Success: A pointer to the reversed byte sequence
*
@@ -10410,6 +10485,9 @@ done:
*
* Modifications:
*
+ * Raymond Lu
+ * March 13, 2006
+ * Add support for VAX floating-point types.
*-------------------------------------------------------------------------
*/
static herr_t
@@ -10422,12 +10500,18 @@ H5T_reverse_order(uint8_t *rev, uint8_t *s, size_t size, H5T_order_t order)
assert(s);
assert(size);
- if (H5T_ORDER_BE == order)
+ if (H5T_ORDER_VAX == order) {
+ for (i = 0; i < size; i += 2) {
+ rev[i] = s[(size - 2) - i];
+ rev[i + 1] = s[(size - 1) - i];
+ }
+ } else if (H5T_ORDER_BE == order) {
for (i=0; i<size; i++)
rev[size-(i+1)] = s[i];
- else
+ } else {
for (i=0; i<size; i++)
rev[i] = s[i];
-
+ }
+
FUNC_LEAVE_NOAPI(SUCCEED);
}
generated by cgit v0.12 at 2024-11-07 16:59:01 (GMT)