evas - skip the map rendering if all points are transparent.

ChangeLog

@@ -1,3 +1,7 @@
+2013-07-25  ChunEon Park (Hermet)
+
+        * Evas: Skip the map rendering if all points are transparent.
+
 2013-07-24  Mike Blumenkrantz
 
         * Ecore-Evas: fix usage of underlying X window after it has received a destroy event

NEWS

@@ -318,6 +318,7 @@ Fixes:
      - Fix issue when parsing formats with quotes.
      - Fix infinite loop if app use ecore evas image
      - Fix a long-standing off-by-1 in the C "simd" multiplier.
+     - Skip the map rendering if all points are transparent.
     * Ecore:
      - Don't leak fd on exec.
      - Fix fd handler increase issue when ecore_pipe_add/del is called repeatedly.

src/modules/evas/engines/software_generic/evas_engine.c

@@ -1458,6 +1458,16 @@ _draw_thread_map_draw(void *data)
 
    do
      {
+        //Fully Transparency. Skip this.
+        if (!(m->pts[0 + offset].col & 0xff000000) &&
+            !(m->pts[1 + offset].col & 0xff000000) &&
+            !(m->pts[2 + offset].col & 0xff000000) &&
+            !(m->pts[3 + offset].col & 0xff000000))
+          {
+             offset += 2;
+             continue;
+          }
+
         if ((m->pts[0 + offset].x == m->pts[3 + offset].x) &&
             (m->pts[1 + offset].x == m->pts[2 + offset].x) &&
             (m->pts[0 + offset].y == m->pts[1 + offset].y) &&