[svn-r8916]

Purpose: Improvement

Description: HDF5 Library set pixels_per_scanline parameter to the size of the chunk's
             fastest changing dimension.  As a result, fastest changing dimension
             of the chunk could not be bigger than 4K and smaller than pixels_per_block
             value and szip compression couldn't be used for many real datasets.

Solution: Reworked algorithm how HDF5 sets pixels_per_scanline value; only chunks
          with the total number of elements less than pixels_per_block value are rejected.
          There is no restriction on the size of the chunk's fastest changing
          dimension anymore.

          Modified the test according to the new algorithm.


Platforms tested: verbena, copper, sol

Misc. update:

1 files changed, 11 insertions, 4 deletions

diff --git a/test/dsets.c b/test/dsets.c
index 8cdb5bf..d996211 100644
--- a/test/dsets.c
+++ b/test/dsets.c
@@ -2826,14 +2826,21 @@ file)
     }
 
     /* Create new dataset */
-    /* (Should fail because the 'can apply' filter should indicate inappropriate combination) */
+    /* (Should succeed; according to the new algorithm, scanline should be reset 
+        to 2*128 satisfying 'maximum blocks per scanline' condition) */
     H5E_BEGIN_TRY {
         dsid = H5Dcreate(file, DSET_CAN_APPLY_SZIP_NAME, H5T_NATIVE_INT, sid, dcpl);
     } H5E_END_TRY;
-    if (dsid >=0) {
+    if (dsid <=0) {
         H5_FAILED();
-        printf("    Line %d: Shouldn't have created dataset!\n",__LINE__);
-        H5Dclose(dsid);
+        printf("    Line %d: Should have created dataset!\n",__LINE__);
+        goto error;
+    } /* end if */
+
+    /* Close dataset */
+    if(H5Dclose(dsid)<0) {
+        H5_FAILED();
+        printf("    Line %d: Can't close dataset\n",__LINE__);
         goto error;
     } /* end if */