From c83fd7596aec6e4c739ca95b5f519a70440ea574 Mon Sep 17 00:00:00 2001
From: Chris Lord <chrislord.net@gmail.com>
Date: Thu, 2 Feb 2012 09:02:49 +0000
Subject: [PATCH] Bug 717349 - Add checkerboard testing to Robotium. r=jmaher

Add functions to Robotium to test for checkerboarding.
---
 build/mobile/robocop/Driver.java.in           |  3 ++
 .../mobile/robocop/FennecNativeDriver.java.in | 40 +++++++++++++++++++
 2 files changed, 43 insertions(+)

diff --git a/build/mobile/robocop/Driver.java.in b/build/mobile/robocop/Driver.java.in
index 957283a1b305..7ef39ba9c32e 100644
--- a/build/mobile/robocop/Driver.java.in
+++ b/build/mobile/robocop/Driver.java.in
@@ -69,6 +69,9 @@ public interface Driver {
   void startFrameRecording();
   int stopFrameRecording();
 
+  void startCheckerboardRecording();
+  int stopCheckerboardRecording();
+
   /**
    * Get a copy of the painted content region.
    * @return A 2-D array of pixels (indexed by y, then x). The pixels
diff --git a/build/mobile/robocop/FennecNativeDriver.java.in b/build/mobile/robocop/FennecNativeDriver.java.in
index aa14d2c86e70..d1d440f5809a 100644
--- a/build/mobile/robocop/FennecNativeDriver.java.in
+++ b/build/mobile/robocop/FennecNativeDriver.java.in
@@ -83,6 +83,8 @@ public class FennecNativeDriver implements Driver {
   private Method sendGE;
   private Method _startFrameRecording;
   private Method _stopFrameRecording;
+  private Method _startCheckerboardRecording;
+  private Method _stopCheckerboardRecording;
   private Method _getPixels;
 
   public FennecNativeDriver(Activity activity, Solo robocop){
@@ -110,6 +112,8 @@ public class FennecNativeDriver implements Driver {
       Class gfx = classLoader.loadClass("org.mozilla.gecko.gfx.PanningPerfAPI");
       _startFrameRecording = gfx.getDeclaredMethod("startFrameTimeRecording");
       _stopFrameRecording = gfx.getDeclaredMethod("stopFrameTimeRecording");
+      _startCheckerboardRecording = gfx.getDeclaredMethod("startCheckerboardRecording");
+      _stopCheckerboardRecording = gfx.getDeclaredMethod("stopCheckerboardRecording");
 
       Class layerView = classLoader.loadClass("org.mozilla.gecko.gfx.LayerView");
       _getPixels = layerView.getDeclaredMethod("getPixels");
@@ -222,6 +226,42 @@ public class FennecNativeDriver implements Driver {
     return 0;
   }
 
+  public void startCheckerboardRecording() {
+    try {
+      Object [] params = null;
+      _startCheckerboardRecording.invoke(null, params);
+    } catch (IllegalAccessException e) {
+      e.printStackTrace();
+    } catch (InvocationTargetException e) {
+      e.printStackTrace();
+    }
+  }
+
+  public int stopCheckerboardRecording() {
+    Class [] parameters = new Class[1];
+    parameters[0] = null;
+    List checkerboard;
+
+    try {
+      Object [] params = null;
+      checkerboard = (List)_stopCheckerboardRecording.invoke(null, params);
+      Object [] amountarray = checkerboard.toArray();
+      int numIncompleteFrames = 0;
+      for (int i=0; i < amountarray.length; i++) {
+        Float val = (Float)amountarray[i];
+        if (val > 0.0f)
+          numIncompleteFrames++;
+      }
+      return numIncompleteFrames;
+    } catch (IllegalAccessException e) {
+      e.printStackTrace();
+    } catch (InvocationTargetException e) {
+      e.printStackTrace();
+    }
+
+    return 0;
+  }
+
   private GLSurfaceView getSurfaceView() {
     for (View v : solo.getCurrentViews()) {
       if (v instanceof GLSurfaceView) {