TextureView.java revision 88801b270f693ffd4125534724f204135f592f72
1aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy/* 2aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * Copyright (C) 2011 The Android Open Source Project 3aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 4aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * Licensed under the Apache License, Version 2.0 (the "License"); 5aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * you may not use this file except in compliance with the License. 6aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * You may obtain a copy of the License at 7aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 8aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * http://www.apache.org/licenses/LICENSE-2.0 9aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 10aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * Unless required by applicable law or agreed to in writing, software 11aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * distributed under the License is distributed on an "AS IS" BASIS, 12aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * See the License for the specific language governing permissions and 14aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * limitations under the License. 15aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy */ 16aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 17aa6c24c21c727a196451332448d4e3b11a80be69Romain Guypackage android.view; 18aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 19aa6c24c21c727a196451332448d4e3b11a80be69Romain Guyimport android.content.Context; 2077a811610f99e21da7f88dafef60d09f345d0506Romain Guyimport android.graphics.Bitmap; 21aa6c24c21c727a196451332448d4e3b11a80be69Romain Guyimport android.graphics.Canvas; 22302a9df1d50373c82923bb84ff665dfce584fb22Romain Guyimport android.graphics.Matrix; 23aa6c24c21c727a196451332448d4e3b11a80be69Romain Guyimport android.graphics.Paint; 246be3d5561cbeccf0a8257a4acb155657f868e548Romain Guyimport android.graphics.Rect; 25aa6c24c21c727a196451332448d4e3b11a80be69Romain Guyimport android.graphics.SurfaceTexture; 2652c145ff5ce34980d866155bb154913a847d955bRomain Guyimport android.os.Looper; 27aa6c24c21c727a196451332448d4e3b11a80be69Romain Guyimport android.util.AttributeSet; 28aa6c24c21c727a196451332448d4e3b11a80be69Romain Guyimport android.util.Log; 29aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 30aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy/** 31aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * <p>A TextureView can be used to display a content stream. Such a content 32aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * stream can for instance be a video or an OpenGL scene. The content stream 33aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * can come from the application's process as well as a remote process.</p> 34aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 35aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * <p>TextureView can only be used in a hardware accelerated window. When 36aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * rendered in software, TextureView will draw nothing.</p> 37aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 38aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * <p>Unlike {@link SurfaceView}, TextureView does not create a separate 39aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * window but behaves as a regular View. This key difference allows a 40aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * TextureView to be moved, transformed, animated, etc. For instance, you 41aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * can make a TextureView semi-translucent by calling 42aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * <code>myView.setAlpha(0.5f)</code>.</p> 43aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 44aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * <p>Using a TextureView is simple: all you need to do is get its 45aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * {@link SurfaceTexture}. The {@link SurfaceTexture} can then be used to 46aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * render content. The following example demonstrates how to render the 47aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * camera preview into a TextureView:</p> 48aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 49aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * <pre> 50aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * public class LiveCameraActivity extends Activity implements TextureView.SurfaceTextureListener { 51aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * private Camera mCamera; 52aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * private TextureView mTextureView; 53aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 54aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * protected void onCreate(Bundle savedInstanceState) { 55aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * super.onCreate(savedInstanceState); 56aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 57aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * mTextureView = new TextureView(this); 58aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * mTextureView.setSurfaceTextureListener(this); 59aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 60aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * setContentView(mTextureView); 61aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * } 62aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 63451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy * public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) { 64aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * mCamera = Camera.open(); 65aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 66aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * try { 67aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * mCamera.setPreviewTexture(surface); 68aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * mCamera.startPreview(); 69aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * } catch (IOException ioe) { 70aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * // Something bad happened 71aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * } 72aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * } 73cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba * 748f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy * public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) { 758f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy * // Ignored, Camera does all the work for us 768f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy * } 77cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba * 78402f05530352f34d5320c2d23be43c274d97c4e2Grace Kloba * public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) { 79451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy * mCamera.stopPreview(); 80451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy * mCamera.release(); 81402f05530352f34d5320c2d23be43c274d97c4e2Grace Kloba * return true; 82451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy * } 83cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba * 84cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba * public void onSurfaceTextureUpdated(SurfaceTexture surface) { 8558f4edb7701bf20925468fa5fd1a06a461ff085bRomain Guy * // Invoked every time there's a new Camera preview frame 86cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba * } 87aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * } 88aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * </pre> 89aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 90aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * <p>A TextureView's SurfaceTexture can be obtained either by invoking 91aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * {@link #getSurfaceTexture()} or by using a {@link SurfaceTextureListener}. 92aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * It is important to know that a SurfaceTexture is available only after the 93aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * TextureView is attached to a window (and {@link #onAttachedToWindow()} has 94aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * been invoked.) It is therefore highly recommended you use a listener to 95aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * be notified when the SurfaceTexture becomes available.</p> 96aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 97462785fa257671fe4905d1d3e6ca27e4a61ee946Romain Guy * <p>It is important to note that only one producer can use the TextureView. 98462785fa257671fe4905d1d3e6ca27e4a61ee946Romain Guy * For instance, if you use a TextureView to display the camera preview, you 99462785fa257671fe4905d1d3e6ca27e4a61ee946Romain Guy * cannot use {@link #lockCanvas()} to draw onto the TextureView at the same 100462785fa257671fe4905d1d3e6ca27e4a61ee946Romain Guy * time.</p> 101462785fa257671fe4905d1d3e6ca27e4a61ee946Romain Guy * 102aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @see SurfaceView 103aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @see SurfaceTexture 104aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy */ 105aa6c24c21c727a196451332448d4e3b11a80be69Romain Guypublic class TextureView extends View { 10677a811610f99e21da7f88dafef60d09f345d0506Romain Guy private static final String LOG_TAG = "TextureView"; 10777a811610f99e21da7f88dafef60d09f345d0506Romain Guy 108aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy private HardwareLayer mLayer; 109aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy private SurfaceTexture mSurface; 110aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy private SurfaceTextureListener mListener; 111aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 112a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy private boolean mOpaque = true; 113c989d867f2580a99cde25fab0e49e445aea33f2fRomain Guy 114302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy private final Matrix mMatrix = new Matrix(); 115302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy private boolean mMatrixChanged; 116302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy 11758f4edb7701bf20925468fa5fd1a06a461ff085bRomain Guy private final Object[] mLock = new Object[0]; 11858f4edb7701bf20925468fa5fd1a06a461ff085bRomain Guy private boolean mUpdateLayer; 1192af3524beb75150d347accc925022daa53b4a789Jamie Gennis private boolean mUpdateSurface; 12058f4edb7701bf20925468fa5fd1a06a461ff085bRomain Guy 1218f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy private SurfaceTexture.OnFrameAvailableListener mUpdateListener; 122aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 1236be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy private Canvas mCanvas; 1246be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy private int mSaveCount; 1256be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy 1266be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy private final Object[] mNativeWindowLock = new Object[0]; 1276be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy // Used from native code, do not write! 1286be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy @SuppressWarnings({"UnusedDeclaration"}) 1296be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy private int mNativeWindow; 1306be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy 131aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy /** 132aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * Creates a new TextureView. 133aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 134aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @param context The context to associate this view with. 135aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy */ 136aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy public TextureView(Context context) { 137aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy super(context); 138aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy init(); 139aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 140aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 141aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy /** 142aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * Creates a new TextureView. 143aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 144aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @param context The context to associate this view with. 145aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @param attrs The attributes of the XML tag that is inflating the view. 146aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy */ 147aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy @SuppressWarnings({"UnusedDeclaration"}) 148aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy public TextureView(Context context, AttributeSet attrs) { 149aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy super(context, attrs); 150aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy init(); 151aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 152aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 153aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy /** 154aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * Creates a new TextureView. 155aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 156aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @param context The context to associate this view with. 157aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @param attrs The attributes of the XML tag that is inflating the view. 158aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @param defStyle The default style to apply to this view. If 0, no style 159aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * will be applied (beyond what is included in the theme). This may 160aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * either be an attribute resource, whose value will be retrieved 161aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * from the current theme, or an explicit style resource. 162aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy */ 163aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy @SuppressWarnings({"UnusedDeclaration"}) 164aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy public TextureView(Context context, AttributeSet attrs, int defStyle) { 165aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy super(context, attrs, defStyle); 166aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy init(); 167aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 168aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 169aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy private void init() { 170aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy mLayerPaint = new Paint(); 171aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 172aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 173a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy /** 174a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy * {@inheritDoc} 175a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy */ 176a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy @Override 177a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy public boolean isOpaque() { 178a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy return mOpaque; 179a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy } 180a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy 181a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy /** 182a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy * Indicates whether the content of this TextureView is opaque. The 183a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy * content is assumed to be opaque by default. 184a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy * 185a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy * @param opaque True if the content of this TextureView is opaque, 186a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy * false otherwise 187a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy */ 188a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy public void setOpaque(boolean opaque) { 189a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy if (opaque != mOpaque) { 190a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy mOpaque = opaque; 191a8a2f97c100af4ba52c61c3b59c933f44a53dad4Romain Guy if (mLayer != null) { 19288801b270f693ffd4125534724f204135f592f72Romain Guy updateLayerAndInvalidate(); 193a8a2f97c100af4ba52c61c3b59c933f44a53dad4Romain Guy } 194a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy } 195a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy } 196a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy 197aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy @Override 198aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy protected void onAttachedToWindow() { 199aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy super.onAttachedToWindow(); 200aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 201aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy if (!isHardwareAccelerated()) { 20277a811610f99e21da7f88dafef60d09f345d0506Romain Guy Log.w(LOG_TAG, "A TextureView or a subclass can only be " 203aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy + "used with hardware acceleration enabled."); 204aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 205aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 206aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 207451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy @Override 208451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy protected void onDetachedFromWindow() { 209451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy super.onDetachedFromWindow(); 2101ac4765e959c79101f64b1279887ed469334c268Romain Guy if (mLayer != null && mAttachInfo != null && mAttachInfo.mHardwareRenderer != null) { 2111ac4765e959c79101f64b1279887ed469334c268Romain Guy boolean success = mAttachInfo.mHardwareRenderer.safelyRun(new Runnable() { 2121ac4765e959c79101f64b1279887ed469334c268Romain Guy @Override 2131ac4765e959c79101f64b1279887ed469334c268Romain Guy public void run() { 2141ac4765e959c79101f64b1279887ed469334c268Romain Guy destroySurface(); 2151ac4765e959c79101f64b1279887ed469334c268Romain Guy } 2161ac4765e959c79101f64b1279887ed469334c268Romain Guy }); 2171ac4765e959c79101f64b1279887ed469334c268Romain Guy 2181ac4765e959c79101f64b1279887ed469334c268Romain Guy if (!success) { 2191ac4765e959c79101f64b1279887ed469334c268Romain Guy Log.w(LOG_TAG, "TextureView was not able to destroy its surface: " + this); 2201ac4765e959c79101f64b1279887ed469334c268Romain Guy } 2211ac4765e959c79101f64b1279887ed469334c268Romain Guy } 22231f2c2e94656530fbf6282803e62edb47e9a894dRomain Guy } 223451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy 22431f2c2e94656530fbf6282803e62edb47e9a894dRomain Guy private void destroySurface() { 22580429c458506485904715180d10584092a5cd082Romain Guy if (mLayer != null) { 2262af3524beb75150d347accc925022daa53b4a789Jamie Gennis mSurface.detachFromGLContext(); 227ef09a210dd6ea481158b7028ec2424a7f5769ed2Romain Guy mLayer.clearStorage(); 2282af3524beb75150d347accc925022daa53b4a789Jamie Gennis 229402f05530352f34d5320c2d23be43c274d97c4e2Grace Kloba boolean shouldRelease = true; 230451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy if (mListener != null) { 231402f05530352f34d5320c2d23be43c274d97c4e2Grace Kloba shouldRelease = mListener.onSurfaceTextureDestroyed(mSurface); 232451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy } 233451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy 2346be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy synchronized (mNativeWindowLock) { 2356be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy nDestroyNativeWindow(); 2366be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy } 2376be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy 2386be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy mLayer.destroy(); 239402f05530352f34d5320c2d23be43c274d97c4e2Grace Kloba if (shouldRelease) mSurface.release(); 240451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy mSurface = null; 241451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy mLayer = null; 242451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy } 243451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy } 244451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy 245aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy /** 246aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * The layer type of a TextureView is ignored since a TextureView is always 247aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * considered to act as a hardware layer. The optional paint supplied to this 248aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * method will however be taken into account when rendering the content of 249aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * this TextureView. 250aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 251aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @param layerType The ype of layer to use with this view, must be one of 252aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * {@link #LAYER_TYPE_NONE}, {@link #LAYER_TYPE_SOFTWARE} or 253aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * {@link #LAYER_TYPE_HARDWARE} 254aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @param paint The paint used to compose the layer. This argument is optional 255aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * and can be null. It is ignored when the layer type is 256aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * {@link #LAYER_TYPE_NONE} 257aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy */ 258aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy @Override 259aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy public void setLayerType(int layerType, Paint paint) { 260aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy if (paint != mLayerPaint) { 261aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy mLayerPaint = paint; 262aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy invalidate(); 263aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 264aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 265aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 266aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy /** 267aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * Always returns {@link #LAYER_TYPE_HARDWARE}. 268aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy */ 269aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy @Override 270aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy public int getLayerType() { 271aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy return LAYER_TYPE_HARDWARE; 272aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 273aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 27459c7f80dd20258cefa1fc4bdd3c9a709a8dd53b8Romain Guy @Override 27559c7f80dd20258cefa1fc4bdd3c9a709a8dd53b8Romain Guy boolean hasStaticLayer() { 27659c7f80dd20258cefa1fc4bdd3c9a709a8dd53b8Romain Guy return true; 27759c7f80dd20258cefa1fc4bdd3c9a709a8dd53b8Romain Guy } 27859c7f80dd20258cefa1fc4bdd3c9a709a8dd53b8Romain Guy 279aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy /** 280aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * Calling this method has no effect. 281aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy */ 282aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy @Override 283aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy public void buildLayer() { 284aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 285aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 286aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy /** 287aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * Subclasses of TextureView cannot do their own rendering 288aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * with the {@link Canvas} object. 289aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 290aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @param canvas The Canvas to which the View is rendered. 291aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy */ 292aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy @Override 293aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy public final void draw(Canvas canvas) { 29458f4edb7701bf20925468fa5fd1a06a461ff085bRomain Guy applyUpdate(); 295c01391fb4eb0eef33d142e89e060eac7e75de39dAlexandre Elias applyTransformMatrix(); 296aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 297aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 298aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy /** 299aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * Subclasses of TextureView cannot do their own rendering 300aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * with the {@link Canvas} object. 301aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 302aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @param canvas The Canvas to which the View is rendered. 303aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy */ 304aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy @Override 305aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy protected final void onDraw(Canvas canvas) { 306aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 307aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 308aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy @Override 3098f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy protected void onSizeChanged(int w, int h, int oldw, int oldh) { 3108f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy super.onSizeChanged(w, h, oldw, oldh); 3118f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy if (mSurface != null) { 312e5e0c50f7dfaccc220725c5595080e921ffda1e4Romain Guy nSetDefaultBufferSize(mSurface, getWidth(), getHeight()); 31388801b270f693ffd4125534724f204135f592f72Romain Guy updateLayer(); 314451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy if (mListener != null) { 315451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy mListener.onSurfaceTextureSizeChanged(mSurface, getWidth(), getHeight()); 316451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy } 3178f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy } 3188f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy } 3198f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy 3208f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy @Override 321a998dff5d49a423aaf7097aa8f96bf5bdc681d25Romain Guy boolean destroyLayer(boolean valid) { 32216260e73f6c1c9dc94acf0d328a3c564426b8711Romain Guy return false; 32316260e73f6c1c9dc94acf0d328a3c564426b8711Romain Guy } 32416260e73f6c1c9dc94acf0d328a3c564426b8711Romain Guy 3251766b0e25de5a66f9d0f6e73a2c342272fcadc71Romain Guy /** 3261766b0e25de5a66f9d0f6e73a2c342272fcadc71Romain Guy * @hide 3271766b0e25de5a66f9d0f6e73a2c342272fcadc71Romain Guy */ 32816260e73f6c1c9dc94acf0d328a3c564426b8711Romain Guy @Override 32931f2c2e94656530fbf6282803e62edb47e9a894dRomain Guy protected void destroyHardwareResources() { 33031f2c2e94656530fbf6282803e62edb47e9a894dRomain Guy super.destroyHardwareResources(); 33131f2c2e94656530fbf6282803e62edb47e9a894dRomain Guy destroySurface(); 33231f2c2e94656530fbf6282803e62edb47e9a894dRomain Guy invalidateParentCaches(); 33331f2c2e94656530fbf6282803e62edb47e9a894dRomain Guy invalidate(true); 33431f2c2e94656530fbf6282803e62edb47e9a894dRomain Guy } 33531f2c2e94656530fbf6282803e62edb47e9a894dRomain Guy 33631f2c2e94656530fbf6282803e62edb47e9a894dRomain Guy @Override 3377e52caf6db5feef2b847cfaa3d13690257122c3aMichael Jurka HardwareLayer getHardwareLayer() { 338aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy if (mLayer == null) { 33958f4edb7701bf20925468fa5fd1a06a461ff085bRomain Guy if (mAttachInfo == null || mAttachInfo.mHardwareRenderer == null) { 34058f4edb7701bf20925468fa5fd1a06a461ff085bRomain Guy return null; 34158f4edb7701bf20925468fa5fd1a06a461ff085bRomain Guy } 34258f4edb7701bf20925468fa5fd1a06a461ff085bRomain Guy 343a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy mLayer = mAttachInfo.mHardwareRenderer.createHardwareLayer(mOpaque); 3442af3524beb75150d347accc925022daa53b4a789Jamie Gennis if (!mUpdateSurface) { 3458a34d6800e70da45bac662873f6951c8d8295a15Jamie Gennis // Create a new SurfaceTexture for the layer. 3462af3524beb75150d347accc925022daa53b4a789Jamie Gennis mSurface = mAttachInfo.mHardwareRenderer.createSurfaceTexture(mLayer); 3472af3524beb75150d347accc925022daa53b4a789Jamie Gennis } 348e5e0c50f7dfaccc220725c5595080e921ffda1e4Romain Guy nSetDefaultBufferSize(mSurface, getWidth(), getHeight()); 3492af3524beb75150d347accc925022daa53b4a789Jamie Gennis nCreateNativeWindow(mSurface); 350aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 3518f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy mUpdateListener = new SurfaceTexture.OnFrameAvailableListener() { 352aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy @Override 353aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy public void onFrameAvailable(SurfaceTexture surfaceTexture) { 354aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy // Per SurfaceTexture's documentation, the callback may be invoked 355aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy // from an arbitrary thread 35688801b270f693ffd4125534724f204135f592f72Romain Guy updateLayer(); 35752c145ff5ce34980d866155bb154913a847d955bRomain Guy 35852c145ff5ce34980d866155bb154913a847d955bRomain Guy if (Looper.myLooper() == Looper.getMainLooper()) { 35952c145ff5ce34980d866155bb154913a847d955bRomain Guy invalidate(); 36052c145ff5ce34980d866155bb154913a847d955bRomain Guy } else { 36152c145ff5ce34980d866155bb154913a847d955bRomain Guy postInvalidate(); 36252c145ff5ce34980d866155bb154913a847d955bRomain Guy } 363aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 3648f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy }; 3658f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy mSurface.setOnFrameAvailableListener(mUpdateListener); 366aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 3678a34d6800e70da45bac662873f6951c8d8295a15Jamie Gennis if (mListener != null && !mUpdateSurface) { 368451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy mListener.onSurfaceTextureAvailable(mSurface, getWidth(), getHeight()); 369aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 370d15ebf25c595b855f6978d0600218e3ea5f31e92Chet Haase mLayer.setLayerPaint(mLayerPaint); 371aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 372aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 3732af3524beb75150d347accc925022daa53b4a789Jamie Gennis if (mUpdateSurface) { 3742af3524beb75150d347accc925022daa53b4a789Jamie Gennis // Someone has requested that we use a specific SurfaceTexture, so 3752af3524beb75150d347accc925022daa53b4a789Jamie Gennis // tell mLayer about it and set the SurfaceTexture to use the 3762af3524beb75150d347accc925022daa53b4a789Jamie Gennis // current view size. 3772af3524beb75150d347accc925022daa53b4a789Jamie Gennis mUpdateSurface = false; 37851f7c6b3620549429cd6c62e38bace43085e04fbRomain Guy 37951f7c6b3620549429cd6c62e38bace43085e04fbRomain Guy // Since we are updating the layer, force an update to ensure its 38051f7c6b3620549429cd6c62e38bace43085e04fbRomain Guy // parameters are correct (width, height, transform, etc.) 38188801b270f693ffd4125534724f204135f592f72Romain Guy updateLayer(); 38251f7c6b3620549429cd6c62e38bace43085e04fbRomain Guy mMatrixChanged = true; 38351f7c6b3620549429cd6c62e38bace43085e04fbRomain Guy 3842af3524beb75150d347accc925022daa53b4a789Jamie Gennis mAttachInfo.mHardwareRenderer.setSurfaceTexture(mLayer, mSurface); 3852af3524beb75150d347accc925022daa53b4a789Jamie Gennis nSetDefaultBufferSize(mSurface, getWidth(), getHeight()); 3862af3524beb75150d347accc925022daa53b4a789Jamie Gennis } 3872af3524beb75150d347accc925022daa53b4a789Jamie Gennis 38858f4edb7701bf20925468fa5fd1a06a461ff085bRomain Guy applyUpdate(); 389c01391fb4eb0eef33d142e89e060eac7e75de39dAlexandre Elias applyTransformMatrix(); 390302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy 391aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy return mLayer; 392aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 393aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 3948f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy @Override 3958f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy protected void onVisibilityChanged(View changedView, int visibility) { 3968f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy super.onVisibilityChanged(changedView, visibility); 3978f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy 3988f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy if (mSurface != null) { 3998f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy // When the view becomes invisible, stop updating it, it's a waste of CPU 4008f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy // To cancel updates, the easiest thing to do is simply to remove the 4018f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy // updates listener 4028f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy if (visibility == VISIBLE) { 4038f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy mSurface.setOnFrameAvailableListener(mUpdateListener); 40488801b270f693ffd4125534724f204135f592f72Romain Guy updateLayerAndInvalidate(); 4058f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy } else { 4068f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy mSurface.setOnFrameAvailableListener(null); 4078f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy } 4088f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy } 4098f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy } 4108f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy 411a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy private void updateLayer() { 41288801b270f693ffd4125534724f204135f592f72Romain Guy synchronized (mLock) { 41388801b270f693ffd4125534724f204135f592f72Romain Guy mUpdateLayer = true; 41488801b270f693ffd4125534724f204135f592f72Romain Guy } 41588801b270f693ffd4125534724f204135f592f72Romain Guy } 41688801b270f693ffd4125534724f204135f592f72Romain Guy 41788801b270f693ffd4125534724f204135f592f72Romain Guy private void updateLayerAndInvalidate() { 41888801b270f693ffd4125534724f204135f592f72Romain Guy synchronized (mLock) { 41988801b270f693ffd4125534724f204135f592f72Romain Guy mUpdateLayer = true; 42088801b270f693ffd4125534724f204135f592f72Romain Guy } 42158f4edb7701bf20925468fa5fd1a06a461ff085bRomain Guy invalidate(); 42258f4edb7701bf20925468fa5fd1a06a461ff085bRomain Guy } 4232af3524beb75150d347accc925022daa53b4a789Jamie Gennis 42458f4edb7701bf20925468fa5fd1a06a461ff085bRomain Guy private void applyUpdate() { 42558f4edb7701bf20925468fa5fd1a06a461ff085bRomain Guy if (mLayer == null) { 426a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy return; 427a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy } 428a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy 42958f4edb7701bf20925468fa5fd1a06a461ff085bRomain Guy synchronized (mLock) { 43058f4edb7701bf20925468fa5fd1a06a461ff085bRomain Guy if (mUpdateLayer) { 43158f4edb7701bf20925468fa5fd1a06a461ff085bRomain Guy mUpdateLayer = false; 43258f4edb7701bf20925468fa5fd1a06a461ff085bRomain Guy } else { 43358f4edb7701bf20925468fa5fd1a06a461ff085bRomain Guy return; 43458f4edb7701bf20925468fa5fd1a06a461ff085bRomain Guy } 43558f4edb7701bf20925468fa5fd1a06a461ff085bRomain Guy } 43658f4edb7701bf20925468fa5fd1a06a461ff085bRomain Guy 43702ccac69fd1c0a03c24c5f3ace0ad4bed337b1fdRomain Guy mLayer.update(getWidth(), getHeight(), mOpaque); 438a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy 439cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba if (mListener != null) { 440cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba mListener.onSurfaceTextureUpdated(mSurface); 441cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba } 442a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy } 443a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy 444aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy /** 445302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy * <p>Sets the transform to associate with this texture view. 446302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy * The specified transform applies to the underlying surface 447302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy * texture and does not affect the size or position of the view 448302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy * itself, only of its content.</p> 449302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy * 450302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy * <p>Some transforms might prevent the content from drawing 451302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy * all the pixels contained within this view's bounds. In such 452302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy * situations, make sure this texture view is not marked opaque.</p> 453302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy * 454302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy * @param transform The transform to apply to the content of 455302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy * this view. 456302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy * 457302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy * @see #getTransform(android.graphics.Matrix) 458302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy * @see #isOpaque() 459302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy * @see #setOpaque(boolean) 460302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy */ 461302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy public void setTransform(Matrix transform) { 462302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy mMatrix.set(transform); 463302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy mMatrixChanged = true; 464c01391fb4eb0eef33d142e89e060eac7e75de39dAlexandre Elias invalidateParentIfNeeded(); 465302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy } 466302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy 467302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy /** 468302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy * Returns the transform associated with this texture view. 469302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy * 470302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy * @param transform The {@link Matrix} in which to copy the current 471302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy * transform. Can be null. 472302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy * 473302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy * @return The specified matrix if not null or a new {@link Matrix} 474302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy * instance otherwise. 475302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy * 476302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy * @see #setTransform(android.graphics.Matrix) 477302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy */ 478302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy public Matrix getTransform(Matrix transform) { 479302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy if (transform == null) { 480302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy transform = new Matrix(); 481302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy } 482302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy 483302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy transform.set(mMatrix); 484302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy 485302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy return transform; 486302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy } 487302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy 488c01391fb4eb0eef33d142e89e060eac7e75de39dAlexandre Elias private void applyTransformMatrix() { 48951f7c6b3620549429cd6c62e38bace43085e04fbRomain Guy if (mMatrixChanged && mLayer != null) { 490c01391fb4eb0eef33d142e89e060eac7e75de39dAlexandre Elias mLayer.setTransform(mMatrix); 491c01391fb4eb0eef33d142e89e060eac7e75de39dAlexandre Elias mMatrixChanged = false; 492c01391fb4eb0eef33d142e89e060eac7e75de39dAlexandre Elias } 493c01391fb4eb0eef33d142e89e060eac7e75de39dAlexandre Elias } 494c01391fb4eb0eef33d142e89e060eac7e75de39dAlexandre Elias 495302a9df1d50373c82923bb84ff665dfce584fb22Romain Guy /** 49677a811610f99e21da7f88dafef60d09f345d0506Romain Guy * <p>Returns a {@link android.graphics.Bitmap} representation of the content 49777a811610f99e21da7f88dafef60d09f345d0506Romain Guy * of the associated surface texture. If the surface texture is not available, 49877a811610f99e21da7f88dafef60d09f345d0506Romain Guy * this method returns null.</p> 49977a811610f99e21da7f88dafef60d09f345d0506Romain Guy * 50077a811610f99e21da7f88dafef60d09f345d0506Romain Guy * <p>The bitmap returned by this method uses the {@link Bitmap.Config#ARGB_8888} 50177a811610f99e21da7f88dafef60d09f345d0506Romain Guy * pixel format and its dimensions are the same as this view's.</p> 50277a811610f99e21da7f88dafef60d09f345d0506Romain Guy * 50377a811610f99e21da7f88dafef60d09f345d0506Romain Guy * <p><strong>Do not</strong> invoke this method from a drawing method 50477a811610f99e21da7f88dafef60d09f345d0506Romain Guy * ({@link #onDraw(android.graphics.Canvas)} for instance).</p> 50577a811610f99e21da7f88dafef60d09f345d0506Romain Guy * 506d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy * <p>If an error occurs during the copy, an empty bitmap will be returned.</p> 507d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy * 50877a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @return A valid {@link Bitmap.Config#ARGB_8888} bitmap, or null if the surface 50977a811610f99e21da7f88dafef60d09f345d0506Romain Guy * texture is not available or the width <= 0 or the height <= 0 51077a811610f99e21da7f88dafef60d09f345d0506Romain Guy * 51177a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @see #isAvailable() 51277a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @see #getBitmap(android.graphics.Bitmap) 51377a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @see #getBitmap(int, int) 51477a811610f99e21da7f88dafef60d09f345d0506Romain Guy */ 51577a811610f99e21da7f88dafef60d09f345d0506Romain Guy public Bitmap getBitmap() { 51677a811610f99e21da7f88dafef60d09f345d0506Romain Guy return getBitmap(getWidth(), getHeight()); 51777a811610f99e21da7f88dafef60d09f345d0506Romain Guy } 51877a811610f99e21da7f88dafef60d09f345d0506Romain Guy 51977a811610f99e21da7f88dafef60d09f345d0506Romain Guy /** 52077a811610f99e21da7f88dafef60d09f345d0506Romain Guy * <p>Returns a {@link android.graphics.Bitmap} representation of the content 52177a811610f99e21da7f88dafef60d09f345d0506Romain Guy * of the associated surface texture. If the surface texture is not available, 52277a811610f99e21da7f88dafef60d09f345d0506Romain Guy * this method returns null.</p> 52377a811610f99e21da7f88dafef60d09f345d0506Romain Guy * 52477a811610f99e21da7f88dafef60d09f345d0506Romain Guy * <p>The bitmap returned by this method uses the {@link Bitmap.Config#ARGB_8888} 52577a811610f99e21da7f88dafef60d09f345d0506Romain Guy * pixel format.</p> 52677a811610f99e21da7f88dafef60d09f345d0506Romain Guy * 52777a811610f99e21da7f88dafef60d09f345d0506Romain Guy * <p><strong>Do not</strong> invoke this method from a drawing method 52877a811610f99e21da7f88dafef60d09f345d0506Romain Guy * ({@link #onDraw(android.graphics.Canvas)} for instance).</p> 52977a811610f99e21da7f88dafef60d09f345d0506Romain Guy * 530d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy * <p>If an error occurs during the copy, an empty bitmap will be returned.</p> 531d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy * 53277a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @param width The width of the bitmap to create 53377a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @param height The height of the bitmap to create 53477a811610f99e21da7f88dafef60d09f345d0506Romain Guy * 53577a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @return A valid {@link Bitmap.Config#ARGB_8888} bitmap, or null if the surface 53677a811610f99e21da7f88dafef60d09f345d0506Romain Guy * texture is not available or width is <= 0 or height is <= 0 53777a811610f99e21da7f88dafef60d09f345d0506Romain Guy * 53877a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @see #isAvailable() 53977a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @see #getBitmap(android.graphics.Bitmap) 54077a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @see #getBitmap() 54177a811610f99e21da7f88dafef60d09f345d0506Romain Guy */ 54277a811610f99e21da7f88dafef60d09f345d0506Romain Guy public Bitmap getBitmap(int width, int height) { 54377a811610f99e21da7f88dafef60d09f345d0506Romain Guy if (isAvailable() && width > 0 && height > 0) { 544dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn return getBitmap(Bitmap.createBitmap(getResources().getDisplayMetrics(), 545dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn width, height, Bitmap.Config.ARGB_8888)); 54677a811610f99e21da7f88dafef60d09f345d0506Romain Guy } 54777a811610f99e21da7f88dafef60d09f345d0506Romain Guy return null; 54877a811610f99e21da7f88dafef60d09f345d0506Romain Guy } 54977a811610f99e21da7f88dafef60d09f345d0506Romain Guy 55077a811610f99e21da7f88dafef60d09f345d0506Romain Guy /** 55177a811610f99e21da7f88dafef60d09f345d0506Romain Guy * <p>Copies the content of this view's surface texture into the specified 55277a811610f99e21da7f88dafef60d09f345d0506Romain Guy * bitmap. If the surface texture is not available, the copy is not executed. 55377a811610f99e21da7f88dafef60d09f345d0506Romain Guy * The content of the surface texture will be scaled to fit exactly inside 55477a811610f99e21da7f88dafef60d09f345d0506Romain Guy * the specified bitmap.</p> 55577a811610f99e21da7f88dafef60d09f345d0506Romain Guy * 55677a811610f99e21da7f88dafef60d09f345d0506Romain Guy * <p><strong>Do not</strong> invoke this method from a drawing method 55777a811610f99e21da7f88dafef60d09f345d0506Romain Guy * ({@link #onDraw(android.graphics.Canvas)} for instance).</p> 55877a811610f99e21da7f88dafef60d09f345d0506Romain Guy * 559d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy * <p>If an error occurs, the bitmap is left unchanged.</p> 560d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy * 56177a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @param bitmap The bitmap to copy the content of the surface texture into, 56277a811610f99e21da7f88dafef60d09f345d0506Romain Guy * cannot be null, all configurations are supported 56377a811610f99e21da7f88dafef60d09f345d0506Romain Guy * 56477a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @return The bitmap specified as a parameter 56577a811610f99e21da7f88dafef60d09f345d0506Romain Guy * 56677a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @see #isAvailable() 56777a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @see #getBitmap(int, int) 56877a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @see #getBitmap() 569589b0bb6ab81657ba201cbc441a49f85305170bcRomain Guy * 570589b0bb6ab81657ba201cbc441a49f85305170bcRomain Guy * @throws IllegalStateException if the hardware rendering context cannot be 571589b0bb6ab81657ba201cbc441a49f85305170bcRomain Guy * acquired to capture the bitmap 57277a811610f99e21da7f88dafef60d09f345d0506Romain Guy */ 57377a811610f99e21da7f88dafef60d09f345d0506Romain Guy public Bitmap getBitmap(Bitmap bitmap) { 57477a811610f99e21da7f88dafef60d09f345d0506Romain Guy if (bitmap != null && isAvailable()) { 575589b0bb6ab81657ba201cbc441a49f85305170bcRomain Guy AttachInfo info = mAttachInfo; 576589b0bb6ab81657ba201cbc441a49f85305170bcRomain Guy if (info != null && info.mHardwareRenderer != null && 577589b0bb6ab81657ba201cbc441a49f85305170bcRomain Guy info.mHardwareRenderer.isEnabled()) { 578589b0bb6ab81657ba201cbc441a49f85305170bcRomain Guy if (!info.mHardwareRenderer.validate()) { 579589b0bb6ab81657ba201cbc441a49f85305170bcRomain Guy throw new IllegalStateException("Could not acquire hardware rendering context"); 580589b0bb6ab81657ba201cbc441a49f85305170bcRomain Guy } 581589b0bb6ab81657ba201cbc441a49f85305170bcRomain Guy } 582589b0bb6ab81657ba201cbc441a49f85305170bcRomain Guy 583589b0bb6ab81657ba201cbc441a49f85305170bcRomain Guy applyUpdate(); 584589b0bb6ab81657ba201cbc441a49f85305170bcRomain Guy applyTransformMatrix(); 585589b0bb6ab81657ba201cbc441a49f85305170bcRomain Guy 58678245f77d2724ee3a053f13fbcb0359751b9f842Romain Guy // This case can happen if the app invokes setSurfaceTexture() before 58778245f77d2724ee3a053f13fbcb0359751b9f842Romain Guy // we are able to create the hardware layer. We can safely initialize 58878245f77d2724ee3a053f13fbcb0359751b9f842Romain Guy // the layer here thanks to the validate() call at the beginning of 58978245f77d2724ee3a053f13fbcb0359751b9f842Romain Guy // this method 59078245f77d2724ee3a053f13fbcb0359751b9f842Romain Guy if (mLayer == null && mUpdateSurface) { 59178245f77d2724ee3a053f13fbcb0359751b9f842Romain Guy getHardwareLayer(); 59278245f77d2724ee3a053f13fbcb0359751b9f842Romain Guy } 59378245f77d2724ee3a053f13fbcb0359751b9f842Romain Guy 59478245f77d2724ee3a053f13fbcb0359751b9f842Romain Guy if (mLayer != null) { 59578245f77d2724ee3a053f13fbcb0359751b9f842Romain Guy mLayer.copyInto(bitmap); 59678245f77d2724ee3a053f13fbcb0359751b9f842Romain Guy } 59777a811610f99e21da7f88dafef60d09f345d0506Romain Guy } 59877a811610f99e21da7f88dafef60d09f345d0506Romain Guy return bitmap; 59977a811610f99e21da7f88dafef60d09f345d0506Romain Guy } 60077a811610f99e21da7f88dafef60d09f345d0506Romain Guy 60177a811610f99e21da7f88dafef60d09f345d0506Romain Guy /** 60277a811610f99e21da7f88dafef60d09f345d0506Romain Guy * Returns true if the {@link SurfaceTexture} associated with this 60377a811610f99e21da7f88dafef60d09f345d0506Romain Guy * TextureView is available for rendering. When this method returns 60477a811610f99e21da7f88dafef60d09f345d0506Romain Guy * true, {@link #getSurfaceTexture()} returns a valid surface texture. 60577a811610f99e21da7f88dafef60d09f345d0506Romain Guy */ 60677a811610f99e21da7f88dafef60d09f345d0506Romain Guy public boolean isAvailable() { 60777a811610f99e21da7f88dafef60d09f345d0506Romain Guy return mSurface != null; 60877a811610f99e21da7f88dafef60d09f345d0506Romain Guy } 60977a811610f99e21da7f88dafef60d09f345d0506Romain Guy 61077a811610f99e21da7f88dafef60d09f345d0506Romain Guy /** 6116be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * <p>Start editing the pixels in the surface. The returned Canvas can be used 6126be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * to draw into the surface's bitmap. A null is returned if the surface has 6136be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * not been created or otherwise cannot be edited. You will usually need 6146be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * to implement 6156be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * {@link SurfaceTextureListener#onSurfaceTextureAvailable(android.graphics.SurfaceTexture, int, int)} 6166be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * to find out when the Surface is available for use.</p> 6176be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * 6186be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * <p>The content of the Surface is never preserved between unlockCanvas() 6196be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * and lockCanvas(), for this reason, every pixel within the Surface area 6206be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * must be written. The only exception to this rule is when a dirty 6216be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * rectangle is specified, in which case, non-dirty pixels will be 6226be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * preserved.</p> 623462785fa257671fe4905d1d3e6ca27e4a61ee946Romain Guy * 624462785fa257671fe4905d1d3e6ca27e4a61ee946Romain Guy * <p>This method can only be used if the underlying surface is not already 625462785fa257671fe4905d1d3e6ca27e4a61ee946Romain Guy * owned by another producer. For instance, if the TextureView is being used 626462785fa257671fe4905d1d3e6ca27e4a61ee946Romain Guy * to render the camera's preview you cannot invoke this method.</p> 6276be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * 6286be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * @return A Canvas used to draw into the surface. 6296be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * 6306be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * @see #lockCanvas(android.graphics.Rect) 6316be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * @see #unlockCanvasAndPost(android.graphics.Canvas) 6326be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy */ 6336be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy public Canvas lockCanvas() { 6346be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy return lockCanvas(null); 6356be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy } 6366be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy 6376be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy /** 6386be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * Just like {@link #lockCanvas()} but allows specification of a dirty 6396be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * rectangle. Every pixel within that rectangle must be written; however 6406be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * pixels outside the dirty rectangle will be preserved by the next call 6416be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * to lockCanvas(). 6426be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * 6436be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * @param dirty Area of the surface that will be modified. 6446be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy 6456be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * @return A Canvas used to draw into the surface. 6466be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * 6476be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * @see #lockCanvas() 6486be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * @see #unlockCanvasAndPost(android.graphics.Canvas) 6496be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy */ 6506be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy public Canvas lockCanvas(Rect dirty) { 6516be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy if (!isAvailable()) return null; 6526be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy 6536be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy if (mCanvas == null) { 6546be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy mCanvas = new Canvas(); 6556be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy } 6566be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy 6576be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy synchronized (mNativeWindowLock) { 6586be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy nLockCanvas(mNativeWindow, mCanvas, dirty); 6596be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy } 6606be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy mSaveCount = mCanvas.save(); 6616be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy 6626be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy return mCanvas; 6636be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy } 6646be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy 6656be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy /** 6666be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * Finish editing pixels in the surface. After this call, the surface's 6676be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * current pixels will be shown on the screen, but its content is lost, 6686be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * in particular there is no guarantee that the content of the Surface 6696be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * will remain unchanged when lockCanvas() is called again. 6706be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * 6716be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * @param canvas The Canvas previously returned by lockCanvas() 6726be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * 6736be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * @see #lockCanvas() 6746be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy * @see #lockCanvas(android.graphics.Rect) 6756be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy */ 6766be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy public void unlockCanvasAndPost(Canvas canvas) { 6776be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy if (mCanvas != null && canvas == mCanvas) { 6786be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy canvas.restoreToCount(mSaveCount); 6796be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy mSaveCount = 0; 6806be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy 6816be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy synchronized (mNativeWindowLock) { 6826be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy nUnlockCanvasAndPost(mNativeWindow, mCanvas); 6836be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy } 6846be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy } 6856be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy } 6866be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy 6876be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy /** 688aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * Returns the {@link SurfaceTexture} used by this view. This method 68977a811610f99e21da7f88dafef60d09f345d0506Romain Guy * may return null if the view is not attached to a window or if the surface 69077a811610f99e21da7f88dafef60d09f345d0506Romain Guy * texture has not been initialized yet. 69177a811610f99e21da7f88dafef60d09f345d0506Romain Guy * 69277a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @see #isAvailable() 693aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy */ 694aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy public SurfaceTexture getSurfaceTexture() { 695aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy return mSurface; 696aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 697aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 698aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy /** 6992af3524beb75150d347accc925022daa53b4a789Jamie Gennis * Set the {@link SurfaceTexture} for this view to use. If a {@link 7002af3524beb75150d347accc925022daa53b4a789Jamie Gennis * SurfaceTexture} is already being used by this view, it is immediately 7012af3524beb75150d347accc925022daa53b4a789Jamie Gennis * released and not be usable any more. The {@link 7022af3524beb75150d347accc925022daa53b4a789Jamie Gennis * SurfaceTextureListener#onSurfaceTextureDestroyed} callback is <b>not</b> 7038a34d6800e70da45bac662873f6951c8d8295a15Jamie Gennis * called for the previous {@link SurfaceTexture}. Similarly, the {@link 7048a34d6800e70da45bac662873f6951c8d8295a15Jamie Gennis * SurfaceTextureListener#onSurfaceTextureAvailable} callback is <b>not</b> 7058a34d6800e70da45bac662873f6951c8d8295a15Jamie Gennis * called for the {@link SurfaceTexture} passed to setSurfaceTexture. 7062af3524beb75150d347accc925022daa53b4a789Jamie Gennis * 7072af3524beb75150d347accc925022daa53b4a789Jamie Gennis * The {@link SurfaceTexture} object must be detached from all OpenGL ES 7082af3524beb75150d347accc925022daa53b4a789Jamie Gennis * contexts prior to calling this method. 7092af3524beb75150d347accc925022daa53b4a789Jamie Gennis * 7102af3524beb75150d347accc925022daa53b4a789Jamie Gennis * @param surfaceTexture The {@link SurfaceTexture} that the view should use. 7112af3524beb75150d347accc925022daa53b4a789Jamie Gennis * @see SurfaceTexture#detachFromGLContext() 7122af3524beb75150d347accc925022daa53b4a789Jamie Gennis */ 7132af3524beb75150d347accc925022daa53b4a789Jamie Gennis public void setSurfaceTexture(SurfaceTexture surfaceTexture) { 7142af3524beb75150d347accc925022daa53b4a789Jamie Gennis if (surfaceTexture == null) { 7152af3524beb75150d347accc925022daa53b4a789Jamie Gennis throw new NullPointerException("surfaceTexture must not be null"); 7162af3524beb75150d347accc925022daa53b4a789Jamie Gennis } 7172af3524beb75150d347accc925022daa53b4a789Jamie Gennis if (mSurface != null) { 7182af3524beb75150d347accc925022daa53b4a789Jamie Gennis mSurface.release(); 7192af3524beb75150d347accc925022daa53b4a789Jamie Gennis } 7202af3524beb75150d347accc925022daa53b4a789Jamie Gennis mSurface = surfaceTexture; 7212af3524beb75150d347accc925022daa53b4a789Jamie Gennis mUpdateSurface = true; 7222af3524beb75150d347accc925022daa53b4a789Jamie Gennis invalidateParentIfNeeded(); 7232af3524beb75150d347accc925022daa53b4a789Jamie Gennis } 7242af3524beb75150d347accc925022daa53b4a789Jamie Gennis 7252af3524beb75150d347accc925022daa53b4a789Jamie Gennis /** 726aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * Returns the {@link SurfaceTextureListener} currently associated with this 727aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * texture view. 728aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 729aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @see #setSurfaceTextureListener(android.view.TextureView.SurfaceTextureListener) 730aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @see SurfaceTextureListener 731aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy */ 732aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy public SurfaceTextureListener getSurfaceTextureListener() { 733aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy return mListener; 734aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 735aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 736aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy /** 737aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * Sets the {@link SurfaceTextureListener} used to listen to surface 738aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * texture events. 739aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 740aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @see #getSurfaceTextureListener() 741aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @see SurfaceTextureListener 742aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy */ 743aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy public void setSurfaceTextureListener(SurfaceTextureListener listener) { 744aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy mListener = listener; 745aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 746aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 747aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy /** 748aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * This listener can be used to be notified when the surface texture 749aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * associated with this texture view is available. 750aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy */ 751aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy public static interface SurfaceTextureListener { 752aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy /** 753aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * Invoked when a {@link TextureView}'s SurfaceTexture is ready for use. 754aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 755aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @param surface The surface returned by 756aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * {@link android.view.TextureView#getSurfaceTexture()} 757451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy * @param width The width of the surface 758451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy * @param height The height of the surface 759aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy */ 760451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height); 7618f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy 7628f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy /** 7638f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy * Invoked when the {@link SurfaceTexture}'s buffers size changed. 7648f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy * 7658f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy * @param surface The surface returned by 7668f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy * {@link android.view.TextureView#getSurfaceTexture()} 7678f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy * @param width The new width of the surface 7688f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy * @param height The new height of the surface 7698f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy */ 7708f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height); 771451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy 772451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy /** 773451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy * Invoked when the specified {@link SurfaceTexture} is about to be destroyed. 774402f05530352f34d5320c2d23be43c274d97c4e2Grace Kloba * If returns true, no rendering should happen inside the surface texture after this method 775402f05530352f34d5320c2d23be43c274d97c4e2Grace Kloba * is invoked. If returns false, the client needs to call {@link SurfaceTexture#release()}. 776451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy * 777451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy * @param surface The surface about to be destroyed 778451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy */ 779402f05530352f34d5320c2d23be43c274d97c4e2Grace Kloba public boolean onSurfaceTextureDestroyed(SurfaceTexture surface); 780cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba 781cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba /** 782cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba * Invoked when the specified {@link SurfaceTexture} is updated through 783cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba * {@link SurfaceTexture#updateTexImage()}. 784cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba * 785cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba * @param surface The surface just updated 786cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba */ 787cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba public void onSurfaceTextureUpdated(SurfaceTexture surface); 788aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 7898f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy 7906be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy private native void nCreateNativeWindow(SurfaceTexture surface); 7916be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy private native void nDestroyNativeWindow(); 7926be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy 793d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy private static native void nSetDefaultBufferSize(SurfaceTexture surfaceTexture, 794d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy int width, int height); 7956be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy 7966be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy private static native void nLockCanvas(int nativeWindow, Canvas canvas, Rect dirty); 7976be3d5561cbeccf0a8257a4acb155657f868e548Romain Guy private static native void nUnlockCanvasAndPost(int nativeWindow, Canvas canvas); 798aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy} 799