First draft of fbo in renderscript.
Updating samples and benchmark

Change-Id: I469bf8b842fca72b59475c8fa024c12cf0e14954
diff --git a/libs/rs/rsComponent.cpp b/libs/rs/rsComponent.cpp
index 4c4987a..e2ae043 100644
--- a/libs/rs/rsComponent.cpp
+++ b/libs/rs/rsComponent.cpp
@@ -18,6 +18,7 @@
 
 #ifndef ANDROID_RS_SERIALIZE
 #include <GLES/gl.h>
+#include <GLES2/gl2.h>
 #endif
 
 using namespace android;
@@ -207,6 +208,7 @@
     case RS_KIND_PIXEL_LA: return GL_LUMINANCE_ALPHA;
     case RS_KIND_PIXEL_RGB: return GL_RGB;
     case RS_KIND_PIXEL_RGBA: return GL_RGBA;
+    case RS_KIND_PIXEL_DEPTH: return GL_DEPTH_COMPONENT16;
     default: break;
     }
 #endif //ANDROID_RS_SERIALIZE