Fix INVALID_OPERATION error with layers rendering.

This change is a workaround for a driver bug that causes an INVALID_OPERATION
to be thrown on every glCopyTexSubImage() call. This change also adds a new
test for gradients local matrices.

Change-Id: I41b7437481026702d0a3a9677f099b4557c0a84e

4 files changed, 124 insertions, 1 deletions

diff --git a/tests/HwAccelerationTest/AndroidManifest.xml b/tests/HwAccelerationTest/AndroidManifest.xml
index af71a0f..4be41b9 100644
--- a/tests/HwAccelerationTest/AndroidManifest.xml
+++ b/tests/HwAccelerationTest/AndroidManifest.xml
@@ -164,6 +164,15 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        
+        <activity
+                android:name="GradientsActivity"
+                android:label="_Gradients">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
 
         <activity
                 android:name="ShadersActivity"
diff --git a/tests/HwAccelerationTest/src/com/android/test/hwui/GradientsActivity.java b/tests/HwAccelerationTest/src/com/android/test/hwui/GradientsActivity.java
new file mode 100644
index 0000000..b70f3a9
--- /dev/null
+++ b/tests/HwAccelerationTest/src/com/android/test/hwui/GradientsActivity.java
@@ -0,0 +1,108 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.test.hwui;
+
+import android.app.Activity;
+import android.content.Context;
+import android.graphics.Canvas;
+import android.graphics.LinearGradient;
+import android.graphics.Matrix;
+import android.graphics.Paint;
+import android.graphics.Shader;
+import android.os.Bundle;
+import android.view.View;
+
+@SuppressWarnings({"UnusedDeclaration"})
+public class GradientsActivity extends Activity {
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        setContentView(new ShadersView(this));
+    }
+
+    static class ShadersView extends View {
+        private final Paint mPaint;
+        private final float mDrawWidth;
+        private final float mDrawHeight;
+        private final LinearGradient mGradient;
+        private final Matrix mMatrix;
+
+        ShadersView(Context c) {
+            super(c);
+
+            mDrawWidth = 200;
+            mDrawHeight = 200;
+
+            mGradient = new LinearGradient(0, 0, 0, 1, 0xFF000000, 0, Shader.TileMode.CLAMP);
+            mMatrix = new Matrix();
+
+            mPaint = new Paint();
+        }
+
+        @Override
+        protected void onDraw(Canvas canvas) {
+            super.onDraw(canvas);
+            canvas.drawRGB(255, 255, 255);
+
+            // Gradients
+            canvas.save();
+            float top = 40.0f;
+            float right = 40.0f + mDrawWidth;
+            float left = 40.0f;
+            float bottom = 40.0f + mDrawHeight;
+
+            mPaint.setShader(mGradient);
+
+            mMatrix.setScale(1, mDrawWidth);
+            mMatrix.postRotate(90);
+            mMatrix.postTranslate(right, top);
+            mGradient.setLocalMatrix(mMatrix);
+            canvas.drawRect(right - mDrawWidth, top, right, top + mDrawHeight, mPaint);
+
+            top += 40.0f + mDrawHeight;
+            bottom += 40.0f + mDrawHeight;
+            
+            mMatrix.setScale(1, mDrawHeight);
+            mMatrix.postTranslate(left, top);
+            mGradient.setLocalMatrix(mMatrix);
+            canvas.drawRect(left, top, right, top + mDrawHeight, mPaint);
+            
+            left += 40.0f + mDrawWidth;
+            right += 40.0f + mDrawWidth;
+            top -= 40.0f + mDrawHeight;
+            bottom -= 40.0f + mDrawHeight;
+
+            mMatrix.setScale(1, mDrawHeight);
+            mMatrix.postRotate(180);
+            mMatrix.postTranslate(left, bottom);
+            mGradient.setLocalMatrix(mMatrix);
+            canvas.drawRect(left, bottom - mDrawHeight, right, bottom, mPaint);
+
+            top += 40.0f + mDrawHeight;
+            bottom += 40.0f + mDrawHeight;
+            
+            mMatrix.setScale(1, mDrawWidth);
+            mMatrix.postRotate(-90);
+            mMatrix.postTranslate(left, top);
+            mGradient.setLocalMatrix(mMatrix);
+            canvas.drawRect(left, top, left + mDrawWidth, bottom, mPaint);
+           
+            canvas.restore();
+        }
+    }
+}
diff --git a/tests/HwAccelerationTest/src/com/android/test/hwui/ShadersActivity.java b/tests/HwAccelerationTest/src/com/android/test/hwui/ShadersActivity.java
index 9c8e7ec..2db1071 100644
--- a/tests/HwAccelerationTest/src/com/android/test/hwui/ShadersActivity.java
+++ b/tests/HwAccelerationTest/src/com/android/test/hwui/ShadersActivity.java
@@ -77,8 +77,13 @@ public class ShadersActivity extends Activity {
             m2.setScale(0.5f, 0.5f);
             mScaledShader.setLocalMatrix(m2);
 
-            mHorGradient = new LinearGradient(0.0f, 0.0f, mDrawWidth, 0.0f,
+            mHorGradient = new LinearGradient(0.0f, 0.0f, 1.0f, 0.0f,
                     Color.RED, Color.GREEN, Shader.TileMode.CLAMP);
+            Matrix m3 = new Matrix();
+            m3.setScale(mDrawHeight, 1.0f);
+            m3.postRotate(-90.0f);
+            m3.postTranslate(0.0f, mDrawHeight);
+            mHorGradient.setLocalMatrix(m3);
             
             mDiagGradient = new LinearGradient(0.0f, 0.0f, mDrawWidth / 1.5f, mDrawHeight,
                     Color.BLUE, Color.MAGENTA, Shader.TileMode.CLAMP);
diff --git a/tests/HwAccelerationTest/src/com/android/test/hwui/TransparentListActivity.java b/tests/HwAccelerationTest/src/com/android/test/hwui/TransparentListActivity.java
index f47b00f..763169a 100644
--- a/tests/HwAccelerationTest/src/com/android/test/hwui/TransparentListActivity.java
+++ b/tests/HwAccelerationTest/src/com/android/test/hwui/TransparentListActivity.java
@@ -87,6 +87,7 @@ public class TransparentListActivity extends Activity {
         ListView list = (ListView) findViewById(R.id.list);
         list.setAdapter(adapter);
         list.setCacheColorHint(0);
+        list.setVerticalFadingEdgeEnabled(true);
 
         registerForContextMenu(list);
     }