[E] /hg/p/enblend/code: Do not allocate global heap memory in the Fe...

[Enblend <enb...@li...>]

branch:     
details:    http://enblend.hg.sourceforge.net/hgweb/enblend/enblend/hg/p/enblend/code/rev/afd3ebead0fe
changeset:  872:afd3ebead0fe
user:       Chris <cs...@us...>
date:       Sun Jan 06 10:03:30 2013 +0100
description:

Do not allocate global heap memory in the Felzenszwalb/Huttenlocher Distance Transform
with Euclidean metric, but use the (thread-local) stack.

This means we rely on the threads' stacks.  If the stack size is too
small set the environment variable OMP_STACKSIZE.

diffstat:

 VERSION      |  2 +-
 src/openmp.h |  7 ++-----
 2 files changed, 3 insertions(+), 6 deletions(-)

diffs (30 lines):

diff -r 6633c45460b0 -r afd3ebead0fe VERSION
--- a/VERSION	Sun Jan 06 10:02:58 2013 +0100
+++ b/VERSION	Sun Jan 06 10:03:30 2013 +0100
@@ -1,1 +1,1 @@
-4.2-eeafb0d30797
+4.2-6633c45460b0
diff -r 6633c45460b0 -r afd3ebead0fe src/openmp.h
--- a/src/openmp.h	Sun Jan 06 10:02:58 2013 +0100
+++ b/src/openmp.h	Sun Jan 06 10:03:30 2013 +0100
@@ -306,8 +306,8 @@
 
             const math_t infinity = std::numeric_limits<math_t>::infinity();
 
-            int* v = new int[n];
-            math_t* z = new math_t[n + 1];
+            int v[n];
+            math_t z[n + 1];
             int k = 0;
 
             v[0] = 0;
@@ -340,9 +340,6 @@
                 }
                 d[q] = square(q - v[k]) + f[v[k]];
             }
-
-            delete [] v;
-            delete [] z;
         }
     };