[gegl] path-stroke: make it threadsafe by not having a static cache buffer

[Øyvind Kolås <ok src gnome org>]

commit 5518ab49210d298bca13688222d947c668332fec
Author: �yvind Kolås <pippin gimp org>
Date:   Fri Dec 17 15:29:56 2010 +0000

    path-stroke: make it threadsafe by not having a static cache buffer

 gegl/property-types/gegl-path.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)
---
diff --git a/gegl/property-types/gegl-path.c b/gegl/property-types/gegl-path.c
index 677f4fa..16def64 100644
--- a/gegl/property-types/gegl-path.c
+++ b/gegl/property-types/gegl-path.c
@@ -2035,9 +2035,9 @@ static void gegl_path_stamp (GeglBuffer *buffer,
                              gdouble     opacity)
 {
   gfloat col[4];
-  static StampStatic s = {FALSE,}; /* XXX: 
-                                      we will ultimately leak the last valid
-                                      cached brush. */
+  StampStatic s = {FALSE,}; /* there should be a cache of stamps,
+                               note that stamps are accessed in multiple threads
+                             */
 
   GeglRectangle temp;
   GeglRectangle roi;
@@ -2110,6 +2110,7 @@ static void gegl_path_stamp (GeglBuffer *buffer,
     }
   }
   gegl_buffer_set_unlocked (buffer, &roi, s.format, s.buf, 0);
+  g_free (s.buf);
 }