wip Move SurfaceTexture.updateTexImage() from video renderers into MediaCodecVideoDecoder

talk/app/webrtc/androidtests/src/org/webrtc/RendererCommonTest.java

Index: talk/app/webrtc/androidtests/src/org/webrtc/RendererCommonTest.java
diff --git a/talk/app/webrtc/androidtests/src/org/webrtc/RendererCommonTest.java b/talk/app/webrtc/androidtests/src/org/webrtc/RendererCommonTest.java
index cd8bfcb48c7b4ae623e94a24ecafe38bf096bbb7..766c56fc3c2ea6f4140e9f003767fcfdd7a7fe9a 100644
--- a/talk/app/webrtc/androidtests/src/org/webrtc/RendererCommonTest.java
+++ b/talk/app/webrtc/androidtests/src/org/webrtc/RendererCommonTest.java
@@ -36,7 +36,7 @@ import android.graphics.Point;
 import static org.webrtc.RendererCommon.ScalingType.*;
 import static org.webrtc.RendererCommon.getDisplaySize;
 import static org.webrtc.RendererCommon.getLayoutMatrix;
-import static org.webrtc.RendererCommon.getSamplingMatrix;
+import static org.webrtc.RendererCommon.rotateTextureMatrix;
 
 public class RendererCommonTest extends ActivityTestCase {
   @SmallTest
@@ -149,27 +149,40 @@ public class RendererCommonTest extends ActivityTestCase {
   }
 
   @SmallTest
-  static public void testSamplingMatrixDefault() {
-    final float samplingMatrix[] = getSamplingMatrix(null, 0);
+  static public void testRotateTextureMatrixDefault() {
+    // Test that rotation with 0 degrees returns an identical matrix.
+    final float[] matrix = new float[] {
+      1, 2, 3, 4,
+      5, 6, 7, 8,
+      9, 0, 1, 2,
+      3, 4, 5, 6
+    };
+    final float rotatedMatrix[] = rotateTextureMatrix(matrix, 0);
+    MoreAsserts.assertEquals(round(rotatedMatrix), round(matrix));
+  }
+
+  @SmallTest
+  static public void testRotateTextureMatrix90Deg() {
+    final float samplingMatrix[] = rotateTextureMatrix(RendererCommon.IDENTITY_MATRIX, 90);
     // Assert:
-    // u' = u.
-    // v' = 1 - v.
+    // u' = 1 - v.
+    // v' = u.
     MoreAsserts.assertEquals(round(samplingMatrix), new double[]
-        {1,  0, 0, 0,
-         0, -1, 0, 0,
-         0,  0, 1, 0,
-         0,  1, 0, 1});
+        { 0, 1, 0, 0,
+         -1, 0, 0, 0,
+          0, 0, 1, 0,
+          1, 0, 0, 1});
   }
 
   @SmallTest
-  static public void testSamplingMatrixRotation90Deg() {
-    final float samplingMatrix[] = getSamplingMatrix(null, 90);
+  static public void testRotateTextureMatrix180Deg() {
+    final float samplingMatrix[] = rotateTextureMatrix(RendererCommon.IDENTITY_MATRIX, 180);
     // Assert:
     // u' = 1 - u.
     // v' = 1 - v.
     MoreAsserts.assertEquals(round(samplingMatrix), new double[]
-        { 0, -1, 0, 0,
-         -1,  0, 0, 0,
+        {-1,  0, 0, 0,
+          0, -1, 0, 0,
           0,  0, 1, 0,
           1,  1, 0, 1});
   }