Added source color and alpha modulation support.

Added perl script to generate optimized render copy functions.

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%402032

test/testwm2.c

@@ -34,7 +34,7 @@ main(int argc, char *argv[])
             consumed = -1;
         }
         if (consumed < 0) {
-            fprintf(stderr, "Usage: %s %s", argv[0], CommonUsage(state));
+            fprintf(stderr, "Usage: %s %s\n", argv[0], CommonUsage(state));
             quit(1);
         }
         i += consumed;