Beging GL2 user shaders. Switch master to using GL2 by default.

graphics/java/android/renderscript/ProgramFragment.java

@@ -69,6 +69,7 @@ public class ProgramFragment extends BaseObj {
         Element mIn;
         Element mOut;
         boolean mPointSpriteEnable;
+        String mShader;
 
         private class Slot {
             Type mType;
@@ -92,6 +93,10 @@ public class ProgramFragment extends BaseObj {
             }
         }
 
+        public void setShader(String s) {
+            mShader = s;
+        }
+
         public void setType(int slot, Type t)
             throws IllegalArgumentException {
             if((slot < 0) || (slot >= MAX_SLOT)) {
@@ -144,6 +149,10 @@ public class ProgramFragment extends BaseObj {
                 }
             }
 
+            if (b.mShader != null) {
+                rs.nProgramFragmentSetShader(b.mShader);
+            }
+
             int id = rs.nProgramFragmentCreate();
             return new ProgramFragment(id, rs);
         }