[svn-r8479] Purpose:

New Feature

Description:
Add the data transform function, H5Pset_transform().

Platforms tested:
"h5committested".
Copper was down.  Ran parallel tests in sol instead.

Misc. update:

2 files changed, 115 insertions, 2 deletions

diff --git a/test/Makefile.in b/test/Makefile.in
index 3951d7a..e0d3a54 100644
--- a/test/Makefile.in
+++ b/test/Makefile.in
@@ -31,7 +31,7 @@ TEST_PROGS=testhdf5 lheap ohdr stab gheap hyperslab istore bittests dtypes
            dsets cmpd_dset extend external links unlink big mtime fillval mount \
            flush1 flush2 enum gass_write gass_read gass_append set_extent       \
            srb_write srb_append srb_read ttsafe stream_test getname file_handle \
-           ntypes dangle
+           ntypes dangle dtransform
 
 ## Test programs for Error API
 ERR_PROGS=error_test err_compat
@@ -83,7 +83,7 @@ TEST_SRC=big.c bittests.c cmpd_dset.c dsets.c dtypes.c extend.c              \
          ttsafe_cancel.c ttsafe_acreate.c gass_write.c gass_read.c           \
          gass_append.c srb_read.c srb_write.c srb_append.c stream_test.c     \
          set_extent.c getname.c file_handle.c ntypes.c dangle.c error_test.c \
-         err_compat.c
+         err_compat.c dtransform.c
 
 TEST_OBJ=$(TEST_SRC:.c=.lo)
 
@@ -230,4 +230,7 @@ error_test: error_test.lo
 err_compat: err_compat.lo
 	@$(LT_LINK_EXE) $(CFLAGS) -o $@ err_compat.lo $(LIB) $(LIBHDF5) $(LDFLAGS) $(LIBS)
         
+dtransform: dtransform.lo
+	@$(LT_LINK_EXE) $(CFLAGS) -o $@ dtransform.lo $(LIB) $(LIBHDF5) $(LDFLAGS) $(LIBS)
+
 @CONCLUDE@
diff --git a/test/dtransform.c b/test/dtransform.c
new file mode 100644
index 0000000..0f2e4e8
--- /dev/null
+++ b/test/dtransform.c
@@ -0,0 +1,110 @@
+#include "h5test.h"
+
+#define ROWS    12
+#define COLS    18
+#define TOL     2
+
+int compare(int* a, int* b);
+
+int main()
+{
+    
+    hid_t file_id, dxpl_id_f_to_c, dxpl_id_c_to_f, dset_id, datatype, dataspace;
+    hsize_t dim[2] = {ROWS, COLS};
+    char* f_to_c = "(5/9.0)*(x-32)";
+    char* c_to_f = "(9/5.0)*x + 32";
+    int windchillF[ROWS][COLS] =
+    {   {36, 31, 25, 19, 13, 7, 1, -5, -11, -16, -22, -28, -34, -40, -46, -52, -57, -63 }, 
+        {34, 27, 21, 15, 9, 3, -4, -10, -16, -22, -28, -35, -41, -47, -53, -59, -66, -72 } , 
+        {32, 25, 19, 13, 6, 0, -7, -13, -19, -26, -32, -39, -45, -51, -58, -64, -71, -77 }, 
+        {30, 24, 17, 11, 4, -2, -9, -15, -22, -29, -35, -42, -48, -55, -61, -68, -74, -81 }, 
+        {29, 23, 16, 9, 3, -4, -11, -17, -24, -31, -37, -44, -51, -58, -64, -71, -78, -84 }, 
+        {28, 22, 15, 8, 1, -5, -12, -19, -26, -33, -39, -46, -53, -60, -67, -73, -80, -87 }, 
+        {28, 21, 14, 7, 0, -7, -14, -21, -27, -34, -41, -48, -55, -62, -69, -76, -82, -89 }, 
+        {27, 20, 13, 6, -1, -8, -15, -22, -29, -36, -43, -50, -57, -64, -71, -78, -84, -91 }, 
+        {26, 19, 12, 5, -2, -9, -16, -23, -30, -37, -44, -51, -58, -65, -72, -79, -86, -93 },
+        {26, 19, 12, 4, -3, -10, -17, -24, -31, -38, -45, -52, -60, -67, -74, -81, -88, -95},
+        {25, 18, 11, 4, -3, -11, -18, -25, -32, -39, -46, -54, -61, -68, -75, -82, -89, -97}, 
+        {25, 17, 10, 3, -4, -11, -19, -26, -33, -40, -48, -55, -62, -69, -76, -84, -91, -98} 
+    };
+    int windchillCread[ROWS][COLS];
+    int windchillFread[ROWS][COLS];
+    int windchillCcalc[ROWS][COLS];
+    herr_t err;
+    int row, col;
+
+
+    TESTING("data transform");
+    
+    dxpl_id_f_to_c = H5Pcreate(H5P_DATASET_XFER);
+    dxpl_id_c_to_f = H5Pcreate(H5P_DATASET_XFER);
+
+    err= H5Pset_data_transform(dxpl_id_f_to_c, f_to_c);
+    err= H5Pset_data_transform(dxpl_id_c_to_f, c_to_f);
+
+
+    file_id = H5Fcreate("dtransform.h5", H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+
+    dataspace = H5Screate_simple(2, dim, NULL); 
+
+    datatype = H5Tcopy(H5T_NATIVE_INT);
+
+    dset_id = H5Dcreate(file_id, "/transformtest", datatype, dataspace, H5P_DEFAULT);
+
+    err = H5Dwrite(dset_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, dxpl_id_f_to_c, windchillF);
+    err = H5Dread(dset_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, windchillCread);
+
+    for(row = 0; row<ROWS; row++)
+    {
+        for(col = 0; col<COLS; col++)
+            windchillCcalc[row][col] = (5/9.0)*(windchillF[row][col] - 32);
+    }
+    
+    if( (compare(windchillCread, windchillCcalc)) == 0)
+    {
+        fprintf(stderr, "ERROR: Conversion failed to match computed data\n");
+        TEST_ERROR;
+    }
+    else
+    {
+        err = H5Dread(dset_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, dxpl_id_c_to_f, windchillFread);
+        if( (compare(windchillF, windchillFread)) == 0)
+        {
+            fprintf(stderr, "ERROR: Conversion failed to match computed data\n");
+            TEST_ERROR;
+        }
+    } 
+    
+
+    /* Close the objects we opened/created */
+   err = H5Sclose(dataspace);
+   err = H5Tclose(datatype); 
+   err = H5Dclose(dset_id);
+   err = H5Fclose(file_id);
+   err = H5Pclose(dxpl_id_f_to_c);
+   err = H5Pclose(dxpl_id_c_to_f);
+
+   PASSED();
+   
+   return 0;
+
+error:
+   return -1;
+}
+
+int compare(int* a, int* b)
+{
+    int row, col;
+    for(row = 0; row<ROWS; row++)
+    {
+        for(col = 0; col<COLS; col++)
+        {
+            if( !((a[row*COLS + col] <= (b[row*COLS + col] + TOL)) && (a[row*COLS + col] >= (b[row*COLS + col] - TOL))) )
+                return 0;
+        }
+    }
+    return 1;
+}
+    
+
+