[Digikam-devel] branches/extragear/kde3/libs/libkdcraw

[Gilles Caulier]

SVN commit 861850 by cgilles:

libkdcraw from KDE3 branch : add a new .configure --enable-openmp option to compile libraw with parallelized code to speed-up RAW Demosaicing operations.
You need libgomp shared library installed.
CCMAIL: digikam-devel at kde.org
CCMAIL: digikam-users at kde.org
CCMAIL: kde-imaging at kde.org
CCMAIL: holger.berger at googlemail.com
CCMAIL: lexa at lexa.ru


 M  +6 -0      configure.in.bot  
 M  +23 -0     configure.in.in  


--- branches/extragear/kde3/libs/libkdcraw/configure.in.bot #861849:861850
@@ -15,5 +15,11 @@
   echo "-- lcms found..................... YES"
 fi
 
+if test "x$USING_OPENMP" != "xyes"; then
+  echo "-- compile with OpenMP support.... NO"
+  all_tests=bad
+else
+  echo "-- compile with OpenMP support.... YES"
+fi
 
 
--- branches/extragear/kde3/libs/libkdcraw/configure.in.in #861849:861850
@@ -96,3 +96,26 @@
 )
 CPPFLAGS=$libkdcraw_kdemacros_cppflags
 AC_LANG_POP(C++)
+
+# -----------------------------------------------------------------
+# enable OpenMP support to use parallelized code from LibRaw
+# (default: disabled). this mode speed-up demosaicing operations.
+# -----------------------------------------------------------------
+
+AC_MSG_CHECKING(whether to enable parallel demosaicing operation from LibRaw using openmp...)
+AC_ARG_ENABLE([openmp], [AC_HELP_STRING([--enable-openmp],
+        [enable openmp [default=disabled] ])],
+        if test $enableval = yes; then
+           [AC_MSG_RESULT(yes)]
+           [AC_DEFINE([USING_OPENMP], 1, [using openmp])]
+           USING_OPENMP=yes
+           [CXXFLAGS="$CXXFLAGS -fopenmp"]
+           [OPENMP_LDFLAGS=" -lgomp "]
+        fi
+        ,
+        [AC_MSG_RESULT(no)]
+        [AC_DEFINE([USING_OPENMP], 0, [using openmp])]
+        USING_OPENMP=no
+        [OPENMP_LDFLAGS=""]
+        )
+AC_SUBST(OPENMP_LDFLAGS)