John Reck | 2615de9 | 2014-10-21 10:09:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2014 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package com.android.test.hwui; |
| 18 | |
| 19 | import android.app.Activity; |
| 20 | import android.graphics.Canvas; |
| 21 | import android.graphics.Paint; |
| 22 | import android.graphics.PorterDuff; |
| 23 | import android.graphics.SurfaceTexture; |
| 24 | import android.os.Bundle; |
| 25 | import android.view.Gravity; |
| 26 | import android.view.Surface; |
| 27 | import android.view.TextureView; |
| 28 | import android.widget.FrameLayout; |
| 29 | |
| 30 | @SuppressWarnings({"UnusedDeclaration"}) |
| 31 | public class HardwareCanvasTextureViewActivity extends Activity |
| 32 | implements TextureView.SurfaceTextureListener { |
| 33 | private TextureView mTextureView; |
| 34 | private HardwareCanvasTextureViewActivity.RenderingThread mThread; |
| 35 | |
| 36 | @Override |
| 37 | protected void onCreate(Bundle savedInstanceState) { |
| 38 | super.onCreate(savedInstanceState); |
| 39 | |
| 40 | FrameLayout content = new FrameLayout(this); |
| 41 | |
| 42 | mTextureView = new TextureView(this); |
| 43 | mTextureView.setSurfaceTextureListener(this); |
| 44 | mTextureView.setOpaque(false); |
| 45 | |
| 46 | content.addView(mTextureView, new FrameLayout.LayoutParams(500, 500, Gravity.CENTER)); |
| 47 | setContentView(content); |
| 48 | } |
| 49 | |
| 50 | @Override |
| 51 | public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) { |
| 52 | mThread = new RenderingThread(mTextureView); |
| 53 | mThread.start(); |
| 54 | } |
| 55 | |
| 56 | @Override |
| 57 | public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) { |
| 58 | // Ignored |
| 59 | } |
| 60 | |
| 61 | @Override |
| 62 | public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) { |
| 63 | if (mThread != null) mThread.stopRendering(); |
| 64 | return true; |
| 65 | } |
| 66 | |
| 67 | @Override |
| 68 | public void onSurfaceTextureUpdated(SurfaceTexture surface) { |
| 69 | // Ignored |
| 70 | } |
| 71 | |
| 72 | private static class RenderingThread extends Thread { |
| 73 | private final TextureView mView; |
| 74 | private final Surface mSurface; |
| 75 | private volatile boolean mRunning = true; |
| 76 | |
| 77 | public RenderingThread(TextureView view) { |
| 78 | mView = view; |
| 79 | mSurface = new Surface(mView.getSurfaceTexture()); |
| 80 | } |
| 81 | |
| 82 | @Override |
| 83 | public void run() { |
| 84 | float x = 0.0f; |
| 85 | float y = 0.0f; |
| 86 | float speedX = 5.0f; |
| 87 | float speedY = 3.0f; |
| 88 | |
| 89 | Paint paint = new Paint(); |
| 90 | paint.setColor(0xff00ff00); |
| 91 | |
| 92 | while (mRunning && !Thread.interrupted()) { |
| 93 | final Canvas canvas = mSurface.lockHardwareCanvas(); |
| 94 | try { |
| 95 | canvas.drawColor(0x00000000, PorterDuff.Mode.CLEAR); |
| 96 | canvas.drawRect(x, y, x + 20.0f, y + 20.0f, paint); |
| 97 | } finally { |
| 98 | mSurface.unlockCanvasAndPost(canvas); |
| 99 | } |
| 100 | |
| 101 | if (x + 20.0f + speedX >= mView.getWidth() || x + speedX <= 0.0f) { |
| 102 | speedX = -speedX; |
| 103 | } |
| 104 | if (y + 20.0f + speedY >= mView.getHeight() || y + speedY <= 0.0f) { |
| 105 | speedY = -speedY; |
| 106 | } |
| 107 | |
| 108 | x += speedX; |
| 109 | y += speedY; |
| 110 | |
| 111 | try { |
| 112 | Thread.sleep(15); |
| 113 | } catch (InterruptedException e) { |
| 114 | // Interrupted |
| 115 | } |
| 116 | } |
| 117 | } |
| 118 | |
| 119 | void stopRendering() { |
| 120 | interrupt(); |
| 121 | mRunning = false; |
| 122 | } |
| 123 | } |
| 124 | } |