Refactored OpenGL embedder that works on Android, Mac or Linux.

samples/android_sample/assets/dart/main.dart

Index: samples/android_sample/assets/dart/main.dart
===================================================================
--- samples/android_sample/assets/dart/main.dart	(revision 16976)
+++ samples/android_sample/assets/dart/main.dart	(working copy)
@@ -3,10 +3,10 @@
 // BSD-style license that can be found in the LICENSE file.
 
 import "dart:math" as Math;
-import "android_extension.dart";
+import "extension.dart";
 
+  //precision mediump float;

[vsm, 2013/01/14 21:31:40]

Delete the above.

[gram, 2013/01/16 01:49:16]

Done.

 const FRAGMENT_PROGRAM = """
-  precision mediump float;
 
   const vec3 lightDir = vec3(0.577350269, 0.577350269, -0.577350269);
   varying vec3 vPosition;
@@ -262,6 +262,7 @@
 int width, height;
 
 drawScene() {
+  log("In drawScene");
   var x1 = Math.sin(t * 1.1) * 1.5;
   var y1 = Math.cos(t * 1.3) * 1.5;
   var z1 = Math.sin(t + Math.PI/3) * 1.5;
@@ -317,6 +318,7 @@
   if (t > Math.PI * 200) {
     t -= Math.PI * 200;
   }
+  log("Done drawScene");
 }
 
 setup(int w, int h) {
@@ -325,21 +327,23 @@
   gl.clearDepth(1.0);
   initBuffers();
   resize(w, h);
-  playBackground("music/la_ere_gymnopedie.mp3");
+  //playBackground("music/la_ere_gymnopedie.mp3");

[vsm, 2013/01/14 21:31:40]

Either delete or add TODO to restore.  Nit: space after the "//".

[gram, 2013/01/16 01:49:16]

Done.

 }
 
 resize(int w, int h) {
+  log("in resize");
   width = w;
   height = h;
   ratio = width / height;
   gl.viewport(0, 0, width, height);
   t -= 0.03;
   drawScene();
+  log("done resize");
 }
 
 update() {
   drawScene();
-  eglSwapBuffers();
+  glSwapBuffers();
 }
 
 onMotionDown(num when, num x, num y) {