Update GL textures when changing a Bitmap's pixels

Bug #4146495

Change-Id: I4fe3f8501373b86b164af11ae51642b140035bb8

2 files changed, 115 insertions, 0 deletions

diff --git a/tests/HwAccelerationTest/AndroidManifest.xml b/tests/HwAccelerationTest/AndroidManifest.xml
index e82f9aa..2afc935 100644
--- a/tests/HwAccelerationTest/AndroidManifest.xml
+++ b/tests/HwAccelerationTest/AndroidManifest.xml
@@ -34,6 +34,15 @@
         </activity>
 
         <activity
+                android:name="BitmapMutateActivity"
+                android:label="_BitmapMutate">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+        <activity
                 android:name="BitmapMeshLayerActivity"
                 android:label="_BitmapMeshLayer">
             <intent-filter>
diff --git a/tests/HwAccelerationTest/src/com/android/test/hwui/BitmapMutateActivity.java b/tests/HwAccelerationTest/src/com/android/test/hwui/BitmapMutateActivity.java
new file mode 100644
index 0000000..db9017c
--- /dev/null
+++ b/tests/HwAccelerationTest/src/com/android/test/hwui/BitmapMutateActivity.java
@@ -0,0 +1,106 @@
+/*
+ * 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.animation.ObjectAnimator;
+import android.app.Activity;
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.Paint;
+import android.os.Bundle;
+import android.view.Gravity;
+import android.view.View;
+import android.widget.FrameLayout;
+
+@SuppressWarnings({"UnusedDeclaration"})
+public class BitmapMutateActivity extends Activity {
+    private static final int PATTERN_SIZE = 400;
+
+    private ObjectAnimator mAnimator;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        final BitmapsView view = new BitmapsView(this);
+        final FrameLayout layout = new FrameLayout(this);
+
+        layout.addView(view, new FrameLayout.LayoutParams(480, 800, Gravity.CENTER));
+
+        setContentView(layout);
+
+        mAnimator = ObjectAnimator.ofInt(view, "offset", 0, PATTERN_SIZE - 1);
+        mAnimator.setDuration(1500);
+        mAnimator.setRepeatCount(ObjectAnimator.INFINITE);
+        mAnimator.setRepeatMode(ObjectAnimator.REVERSE);
+        mAnimator.start();
+    }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+        mAnimator.cancel();
+    }
+
+    static class BitmapsView extends View {
+        private final Paint mBitmapPaint;
+        private final Bitmap mBitmap1;
+        private final int[] mPixels;
+
+        private int mOffset;
+        private int mSlice;
+        private static final int[] mShifts = new int[] { 16, 8, 0 };
+
+        BitmapsView(Context c) {
+            super(c);
+
+            mBitmap1 = Bitmap.createBitmap(PATTERN_SIZE, PATTERN_SIZE, Bitmap.Config.ARGB_8888);
+            mBitmapPaint = new Paint();
+
+            mPixels = new int[mBitmap1.getWidth() * mBitmap1.getHeight()];
+            mSlice = mBitmap1.getWidth() / 3;
+        }
+
+        public void setOffset(int offset) {
+            mOffset = offset;
+            invalidate();
+        }
+
+        @Override
+        protected void onDraw(Canvas canvas) {
+            super.onDraw(canvas);
+
+            int width = mBitmap1.getWidth();
+            int height = mBitmap1.getHeight();
+
+            canvas.translate((getWidth() - width) / 2, (getHeight() - height) / 2);
+
+            for (int x = 0; x < width; x++) {
+                int color = 0xff000000;
+                int i = x == 0 ? 0 : x - 1;
+                color |= (int) ((0xff * ((i + mOffset) % mSlice) / (float) mSlice)) <<
+                        mShifts[i / mSlice];
+                for (int y = 0; y < height; y++) {
+                    mPixels[y * width + x] = color;
+                }
+            }
+
+            mBitmap1.setPixels(mPixels, 0, width, 0, 0, width, height);
+            canvas.drawBitmap(mBitmap1, 0.0f, 0.0f, mBitmapPaint);
+        }
+    }
+}