Changeset 9875 for trunk/psLib/src/mathtypes

Timestamp:

Nov 6, 2006, 9:45:33 PM (20 years ago)

Author:

magnier

Message:

added tests for psImageShift and psImageInterpolate, fixed low-level bugs in psImageInterpolate BILINEAR, added BICUBE; added ok_float_tol and ok_double_tol to pstap.h

File:

• trunk/psLib/src/mathtypes/psImage.c (modified) (3 diffs)

trunk/psLib/src/mathtypes/psImage.c

@@ -9 +9 @@
  *  @author Ross Harman, MHPCC
  *
- *  @version $Revision: 1.117 $ $Name: not supported by cvs2svn $
- *  @date $Date: 2006-11-06 02:00:40 $
+ *  @version $Revision: 1.118 $ $Name: not supported by cvs2svn $
+ *  @date $Date: 2006-11-07 07:45:33 $
  *
  *  Copyright 2004-2005 Maui High Performance Computing Center, University of Hawaii
@@ -811 +811 @@
     if (valid00 && valid10 && valid01 && valid11) { \
         /* formula from the ADD */ \
+        /* XXX this had V01 and V10 exchanged! */ \
         return V00*FRACFUNC((1.0-fracX)*(1.0-fracY)) + V10*FRACFUNC(fracX*(1.0-fracY)) + \
                V01*FRACFUNC(fracY*(1.0-fracX)) + V11*FRACFUNC(fracX*fracY); \
@@ -852 +853 @@
 }
 
+// XXX this would be much faster to use a 3x3 kernel to determine the shift
+// the same function can be used for all equivalent (kernel-based) shifts...
 #define PSIMAGE_PIXEL_INTERPOLATE_BICUBE(TYPE, RETURNTYPE, SUFFIX, FRACFUNC) \
 inline RETURNTYPE p_psImagePixelInterpolateBICUBE_##SUFFIX( \