TextureView.java revision cf559377b750271472aa0a717bf3b7d34abc0b39
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; 22aa6c24c21c727a196451332448d4e3b11a80be69Romain Guyimport android.graphics.Paint; 23aa6c24c21c727a196451332448d4e3b11a80be69Romain Guyimport android.graphics.SurfaceTexture; 24aa6c24c21c727a196451332448d4e3b11a80be69Romain Guyimport android.util.AttributeSet; 25aa6c24c21c727a196451332448d4e3b11a80be69Romain Guyimport android.util.Log; 26aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 27aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy/** 28aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * <p>A TextureView can be used to display a content stream. Such a content 29aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * stream can for instance be a video or an OpenGL scene. The content stream 30aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * can come from the application's process as well as a remote process.</p> 31aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 32aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * <p>TextureView can only be used in a hardware accelerated window. When 33aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * rendered in software, TextureView will draw nothing.</p> 34aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 35aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * <p>Unlike {@link SurfaceView}, TextureView does not create a separate 36aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * window but behaves as a regular View. This key difference allows a 37aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * TextureView to be moved, transformed, animated, etc. For instance, you 38aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * can make a TextureView semi-translucent by calling 39aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * <code>myView.setAlpha(0.5f)</code>.</p> 40aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 41aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * <p>Using a TextureView is simple: all you need to do is get its 42aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * {@link SurfaceTexture}. The {@link SurfaceTexture} can then be used to 43aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * render content. The following example demonstrates how to render the 44aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * camera preview into a TextureView:</p> 45aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 46aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * <pre> 47aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * public class LiveCameraActivity extends Activity implements TextureView.SurfaceTextureListener { 48aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * private Camera mCamera; 49aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * private TextureView mTextureView; 50aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 51aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * protected void onCreate(Bundle savedInstanceState) { 52aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * super.onCreate(savedInstanceState); 53aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 54aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * mTextureView = new TextureView(this); 55aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * mTextureView.setSurfaceTextureListener(this); 56aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 57aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * setContentView(mTextureView); 58aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * } 59aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 60451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy * public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) { 61aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * mCamera = Camera.open(); 62aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 63aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * try { 64aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * mCamera.setPreviewTexture(surface); 65aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * mCamera.startPreview(); 66aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * } catch (IOException ioe) { 67aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * // Something bad happened 68aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * } 69aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * } 70cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba * 718f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy * public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) { 728f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy * // Ignored, Camera does all the work for us 738f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy * } 74cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba * 75451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy * public void onSurfaceTextureDestroyed(SurfaceTexture surface) { 76451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy * mCamera.stopPreview(); 77451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy * mCamera.release(); 78451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy * } 79cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba * 80cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba * public void onSurfaceTextureUpdated(SurfaceTexture surface) { 81cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba * // Ignored 82cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba * } 83aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * } 84aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * </pre> 85aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 86aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * <p>A TextureView's SurfaceTexture can be obtained either by invoking 87aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * {@link #getSurfaceTexture()} or by using a {@link SurfaceTextureListener}. 88aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * It is important to know that a SurfaceTexture is available only after the 89aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * TextureView is attached to a window (and {@link #onAttachedToWindow()} has 90aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * been invoked.) It is therefore highly recommended you use a listener to 91aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * be notified when the SurfaceTexture becomes available.</p> 92aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 93aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @see SurfaceView 94aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @see SurfaceTexture 95aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy */ 96aa6c24c21c727a196451332448d4e3b11a80be69Romain Guypublic class TextureView extends View { 9777a811610f99e21da7f88dafef60d09f345d0506Romain Guy private static final String LOG_TAG = "TextureView"; 9877a811610f99e21da7f88dafef60d09f345d0506Romain Guy 99aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy private HardwareLayer mLayer; 100aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy private SurfaceTexture mSurface; 101aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy private SurfaceTextureListener mListener; 102aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 103a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy private boolean mOpaque = true; 104c989d867f2580a99cde25fab0e49e445aea33f2fRomain Guy 105a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy private final Runnable mUpdateLayerAction = new Runnable() { 106a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy @Override 107a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy public void run() { 108a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy updateLayer(); 109a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy } 110a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy }; 1118f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy private SurfaceTexture.OnFrameAvailableListener mUpdateListener; 112aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 113aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy /** 114aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * Creates a new TextureView. 115aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 116aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @param context The context to associate this view with. 117aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy */ 118aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy public TextureView(Context context) { 119aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy super(context); 120aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy init(); 121aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 122aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 123aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy /** 124aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * Creates a new TextureView. 125aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 126aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @param context The context to associate this view with. 127aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @param attrs The attributes of the XML tag that is inflating the view. 128aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy */ 129aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy @SuppressWarnings({"UnusedDeclaration"}) 130aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy public TextureView(Context context, AttributeSet attrs) { 131aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy super(context, attrs); 132aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy init(); 133aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 134aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 135aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy /** 136aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * Creates a new TextureView. 137aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 138aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @param context The context to associate this view with. 139aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @param attrs The attributes of the XML tag that is inflating the view. 140aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @param defStyle The default style to apply to this view. If 0, no style 141aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * will be applied (beyond what is included in the theme). This may 142aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * either be an attribute resource, whose value will be retrieved 143aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * from the current theme, or an explicit style resource. 144aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy */ 145aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy @SuppressWarnings({"UnusedDeclaration"}) 146aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy public TextureView(Context context, AttributeSet attrs, int defStyle) { 147aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy super(context, attrs, defStyle); 148aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy init(); 149aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 150aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 151aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy private void init() { 152aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy mLayerPaint = new Paint(); 153aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 154aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 155a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy /** 156a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy * {@inheritDoc} 157a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy */ 158a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy @Override 159a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy public boolean isOpaque() { 160a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy return mOpaque; 161a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy } 162a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy 163a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy /** 164a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy * Indicates whether the content of this TextureView is opaque. The 165a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy * content is assumed to be opaque by default. 166a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy * 167a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy * @param opaque True if the content of this TextureView is opaque, 168a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy * false otherwise 169a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy */ 170a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy public void setOpaque(boolean opaque) { 171a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy if (opaque != mOpaque) { 172a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy mOpaque = opaque; 1731ec3a58bcdd0d5fa82cf878d974d062811933ae2Romain Guy if (mLayer != null) updateLayer(); 174a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy } 175a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy } 176a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy 177aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy @Override 178aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy protected void onAttachedToWindow() { 179aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy super.onAttachedToWindow(); 180aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 181aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy if (!isHardwareAccelerated()) { 18277a811610f99e21da7f88dafef60d09f345d0506Romain Guy Log.w(LOG_TAG, "A TextureView or a subclass can only be " 183aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy + "used with hardware acceleration enabled."); 184aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 185aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 186aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 187451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy @Override 188451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy protected void onDetachedFromWindow() { 189451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy super.onDetachedFromWindow(); 190451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy 191451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy if (isHardwareAccelerated() && mLayer != null) { 192451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy if (mListener != null) { 193451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy mListener.onSurfaceTextureDestroyed(mSurface); 194451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy } 195451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy 196451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy mLayer.destroy(); 197451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy mSurface = null; 198451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy mLayer = null; 199451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy } 200451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy } 201451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy 202aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy /** 203aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * The layer type of a TextureView is ignored since a TextureView is always 204aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * considered to act as a hardware layer. The optional paint supplied to this 205aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * method will however be taken into account when rendering the content of 206aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * this TextureView. 207aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 208aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @param layerType The ype of layer to use with this view, must be one of 209aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * {@link #LAYER_TYPE_NONE}, {@link #LAYER_TYPE_SOFTWARE} or 210aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * {@link #LAYER_TYPE_HARDWARE} 211aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @param paint The paint used to compose the layer. This argument is optional 212aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * and can be null. It is ignored when the layer type is 213aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * {@link #LAYER_TYPE_NONE} 214aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy */ 215aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy @Override 216aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy public void setLayerType(int layerType, Paint paint) { 217aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy if (paint != mLayerPaint) { 218aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy mLayerPaint = paint; 219aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy invalidate(); 220aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 221aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 222aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 223aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy /** 224aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * Always returns {@link #LAYER_TYPE_HARDWARE}. 225aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy */ 226aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy @Override 227aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy public int getLayerType() { 228aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy return LAYER_TYPE_HARDWARE; 229aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 230aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 231aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy /** 232aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * Calling this method has no effect. 233aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy */ 234aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy @Override 235aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy public void buildLayer() { 236aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 237aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 238aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy /** 239aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * Subclasses of TextureView cannot do their own rendering 240aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * with the {@link Canvas} object. 241aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 242aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @param canvas The Canvas to which the View is rendered. 243aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy */ 244aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy @Override 245aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy public final void draw(Canvas canvas) { 246aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 247aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 248aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy /** 249aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * Subclasses of TextureView cannot do their own rendering 250aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * with the {@link Canvas} object. 251aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 252aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @param canvas The Canvas to which the View is rendered. 253aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy */ 254aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy @Override 255aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy protected final void onDraw(Canvas canvas) { 256aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 257aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 258aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy @Override 2598f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy protected void onSizeChanged(int w, int h, int oldw, int oldh) { 2608f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy super.onSizeChanged(w, h, oldw, oldh); 2618f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy if (mSurface != null) { 262e5e0c50f7dfaccc220725c5595080e921ffda1e4Romain Guy nSetDefaultBufferSize(mSurface, getWidth(), getHeight()); 263451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy if (mListener != null) { 264451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy mListener.onSurfaceTextureSizeChanged(mSurface, getWidth(), getHeight()); 265451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy } 2668f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy } 2678f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy } 2688f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy 2698f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy @Override 270aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy HardwareLayer getHardwareLayer() { 271aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy if (mAttachInfo == null || mAttachInfo.mHardwareRenderer == null) { 272aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy return null; 273aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 274aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 275aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy if (mLayer == null) { 276a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy mLayer = mAttachInfo.mHardwareRenderer.createHardwareLayer(mOpaque); 277e5e0c50f7dfaccc220725c5595080e921ffda1e4Romain Guy mSurface = mAttachInfo.mHardwareRenderer.createSurfaceTexture(mLayer); 278e5e0c50f7dfaccc220725c5595080e921ffda1e4Romain Guy nSetDefaultBufferSize(mSurface, getWidth(), getHeight()); 279aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 2808f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy mUpdateListener = new SurfaceTexture.OnFrameAvailableListener() { 281aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy @Override 282aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy public void onFrameAvailable(SurfaceTexture surfaceTexture) { 283aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy // Per SurfaceTexture's documentation, the callback may be invoked 284aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy // from an arbitrary thread 285a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy post(mUpdateLayerAction); 286aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 2878f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy }; 2888f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy mSurface.setOnFrameAvailableListener(mUpdateListener); 289aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 290aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy if (mListener != null) { 291451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy mListener.onSurfaceTextureAvailable(mSurface, getWidth(), getHeight()); 292aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 293aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 294aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 295aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy return mLayer; 296aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 297aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 2988f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy @Override 2998f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy protected void onVisibilityChanged(View changedView, int visibility) { 3008f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy super.onVisibilityChanged(changedView, visibility); 3018f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy 3028f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy if (mSurface != null) { 3038f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy // When the view becomes invisible, stop updating it, it's a waste of CPU 3048f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy // To cancel updates, the easiest thing to do is simply to remove the 3058f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy // updates listener 3068f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy if (visibility == VISIBLE) { 3078f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy mSurface.setOnFrameAvailableListener(mUpdateListener); 308a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy updateLayer(); 3098f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy } else { 3108f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy mSurface.setOnFrameAvailableListener(null); 3118f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy } 3128f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy } 3138f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy } 3148f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy 315a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy private void updateLayer() { 316a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy if (mAttachInfo == null || mAttachInfo.mHardwareRenderer == null) { 317a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy return; 318a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy } 319a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy 320a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy mAttachInfo.mHardwareRenderer.updateTextureLayer(mLayer, getWidth(), getHeight(), mOpaque); 321a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy 322cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba if (mListener != null) { 323cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba mListener.onSurfaceTextureUpdated(mSurface); 324cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba } 325cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba 326a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy invalidate(); 327a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy } 328a9489274d67b540804aafb587a226f7c2ae4464dRomain Guy 329aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy /** 33077a811610f99e21da7f88dafef60d09f345d0506Romain Guy * <p>Returns a {@link android.graphics.Bitmap} representation of the content 33177a811610f99e21da7f88dafef60d09f345d0506Romain Guy * of the associated surface texture. If the surface texture is not available, 33277a811610f99e21da7f88dafef60d09f345d0506Romain Guy * this method returns null.</p> 33377a811610f99e21da7f88dafef60d09f345d0506Romain Guy * 33477a811610f99e21da7f88dafef60d09f345d0506Romain Guy * <p>The bitmap returned by this method uses the {@link Bitmap.Config#ARGB_8888} 33577a811610f99e21da7f88dafef60d09f345d0506Romain Guy * pixel format and its dimensions are the same as this view's.</p> 33677a811610f99e21da7f88dafef60d09f345d0506Romain Guy * 33777a811610f99e21da7f88dafef60d09f345d0506Romain Guy * <p><strong>Do not</strong> invoke this method from a drawing method 33877a811610f99e21da7f88dafef60d09f345d0506Romain Guy * ({@link #onDraw(android.graphics.Canvas)} for instance).</p> 33977a811610f99e21da7f88dafef60d09f345d0506Romain Guy * 340d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy * <p>If an error occurs during the copy, an empty bitmap will be returned.</p> 341d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy * 34277a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @return A valid {@link Bitmap.Config#ARGB_8888} bitmap, or null if the surface 34377a811610f99e21da7f88dafef60d09f345d0506Romain Guy * texture is not available or the width <= 0 or the height <= 0 34477a811610f99e21da7f88dafef60d09f345d0506Romain Guy * 34577a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @see #isAvailable() 34677a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @see #getBitmap(android.graphics.Bitmap) 34777a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @see #getBitmap(int, int) 34877a811610f99e21da7f88dafef60d09f345d0506Romain Guy */ 34977a811610f99e21da7f88dafef60d09f345d0506Romain Guy public Bitmap getBitmap() { 35077a811610f99e21da7f88dafef60d09f345d0506Romain Guy return getBitmap(getWidth(), getHeight()); 35177a811610f99e21da7f88dafef60d09f345d0506Romain Guy } 35277a811610f99e21da7f88dafef60d09f345d0506Romain Guy 35377a811610f99e21da7f88dafef60d09f345d0506Romain Guy /** 35477a811610f99e21da7f88dafef60d09f345d0506Romain Guy * <p>Returns a {@link android.graphics.Bitmap} representation of the content 35577a811610f99e21da7f88dafef60d09f345d0506Romain Guy * of the associated surface texture. If the surface texture is not available, 35677a811610f99e21da7f88dafef60d09f345d0506Romain Guy * this method returns null.</p> 35777a811610f99e21da7f88dafef60d09f345d0506Romain Guy * 35877a811610f99e21da7f88dafef60d09f345d0506Romain Guy * <p>The bitmap returned by this method uses the {@link Bitmap.Config#ARGB_8888} 35977a811610f99e21da7f88dafef60d09f345d0506Romain Guy * pixel format.</p> 36077a811610f99e21da7f88dafef60d09f345d0506Romain Guy * 36177a811610f99e21da7f88dafef60d09f345d0506Romain Guy * <p><strong>Do not</strong> invoke this method from a drawing method 36277a811610f99e21da7f88dafef60d09f345d0506Romain Guy * ({@link #onDraw(android.graphics.Canvas)} for instance).</p> 36377a811610f99e21da7f88dafef60d09f345d0506Romain Guy * 364d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy * <p>If an error occurs during the copy, an empty bitmap will be returned.</p> 365d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy * 36677a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @param width The width of the bitmap to create 36777a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @param height The height of the bitmap to create 36877a811610f99e21da7f88dafef60d09f345d0506Romain Guy * 36977a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @return A valid {@link Bitmap.Config#ARGB_8888} bitmap, or null if the surface 37077a811610f99e21da7f88dafef60d09f345d0506Romain Guy * texture is not available or width is <= 0 or height is <= 0 37177a811610f99e21da7f88dafef60d09f345d0506Romain Guy * 37277a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @see #isAvailable() 37377a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @see #getBitmap(android.graphics.Bitmap) 37477a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @see #getBitmap() 37577a811610f99e21da7f88dafef60d09f345d0506Romain Guy */ 37677a811610f99e21da7f88dafef60d09f345d0506Romain Guy public Bitmap getBitmap(int width, int height) { 37777a811610f99e21da7f88dafef60d09f345d0506Romain Guy if (isAvailable() && width > 0 && height > 0) { 37877a811610f99e21da7f88dafef60d09f345d0506Romain Guy return getBitmap(Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888)); 37977a811610f99e21da7f88dafef60d09f345d0506Romain Guy } 38077a811610f99e21da7f88dafef60d09f345d0506Romain Guy return null; 38177a811610f99e21da7f88dafef60d09f345d0506Romain Guy } 38277a811610f99e21da7f88dafef60d09f345d0506Romain Guy 38377a811610f99e21da7f88dafef60d09f345d0506Romain Guy /** 38477a811610f99e21da7f88dafef60d09f345d0506Romain Guy * <p>Copies the content of this view's surface texture into the specified 38577a811610f99e21da7f88dafef60d09f345d0506Romain Guy * bitmap. If the surface texture is not available, the copy is not executed. 38677a811610f99e21da7f88dafef60d09f345d0506Romain Guy * The content of the surface texture will be scaled to fit exactly inside 38777a811610f99e21da7f88dafef60d09f345d0506Romain Guy * the specified bitmap.</p> 38877a811610f99e21da7f88dafef60d09f345d0506Romain Guy * 38977a811610f99e21da7f88dafef60d09f345d0506Romain Guy * <p><strong>Do not</strong> invoke this method from a drawing method 39077a811610f99e21da7f88dafef60d09f345d0506Romain Guy * ({@link #onDraw(android.graphics.Canvas)} for instance).</p> 39177a811610f99e21da7f88dafef60d09f345d0506Romain Guy * 392d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy * <p>If an error occurs, the bitmap is left unchanged.</p> 393d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy * 39477a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @param bitmap The bitmap to copy the content of the surface texture into, 39577a811610f99e21da7f88dafef60d09f345d0506Romain Guy * cannot be null, all configurations are supported 39677a811610f99e21da7f88dafef60d09f345d0506Romain Guy * 39777a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @return The bitmap specified as a parameter 39877a811610f99e21da7f88dafef60d09f345d0506Romain Guy * 39977a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @see #isAvailable() 40077a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @see #getBitmap(int, int) 40177a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @see #getBitmap() 40277a811610f99e21da7f88dafef60d09f345d0506Romain Guy */ 40377a811610f99e21da7f88dafef60d09f345d0506Romain Guy public Bitmap getBitmap(Bitmap bitmap) { 40477a811610f99e21da7f88dafef60d09f345d0506Romain Guy if (bitmap != null && isAvailable()) { 40577a811610f99e21da7f88dafef60d09f345d0506Romain Guy mAttachInfo.mHardwareRenderer.copyLayer(mLayer, bitmap); 40677a811610f99e21da7f88dafef60d09f345d0506Romain Guy } 40777a811610f99e21da7f88dafef60d09f345d0506Romain Guy return bitmap; 40877a811610f99e21da7f88dafef60d09f345d0506Romain Guy } 40977a811610f99e21da7f88dafef60d09f345d0506Romain Guy 41077a811610f99e21da7f88dafef60d09f345d0506Romain Guy /** 41177a811610f99e21da7f88dafef60d09f345d0506Romain Guy * Returns true if the {@link SurfaceTexture} associated with this 41277a811610f99e21da7f88dafef60d09f345d0506Romain Guy * TextureView is available for rendering. When this method returns 41377a811610f99e21da7f88dafef60d09f345d0506Romain Guy * true, {@link #getSurfaceTexture()} returns a valid surface texture. 41477a811610f99e21da7f88dafef60d09f345d0506Romain Guy */ 41577a811610f99e21da7f88dafef60d09f345d0506Romain Guy public boolean isAvailable() { 41677a811610f99e21da7f88dafef60d09f345d0506Romain Guy return mSurface != null; 41777a811610f99e21da7f88dafef60d09f345d0506Romain Guy } 41877a811610f99e21da7f88dafef60d09f345d0506Romain Guy 41977a811610f99e21da7f88dafef60d09f345d0506Romain Guy /** 420aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * Returns the {@link SurfaceTexture} used by this view. This method 42177a811610f99e21da7f88dafef60d09f345d0506Romain Guy * may return null if the view is not attached to a window or if the surface 42277a811610f99e21da7f88dafef60d09f345d0506Romain Guy * texture has not been initialized yet. 42377a811610f99e21da7f88dafef60d09f345d0506Romain Guy * 42477a811610f99e21da7f88dafef60d09f345d0506Romain Guy * @see #isAvailable() 425aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy */ 426aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy public SurfaceTexture getSurfaceTexture() { 427aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy return mSurface; 428aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 429aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 430aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy /** 431aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * Returns the {@link SurfaceTextureListener} currently associated with this 432aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * texture view. 433aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 434aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @see #setSurfaceTextureListener(android.view.TextureView.SurfaceTextureListener) 435aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @see SurfaceTextureListener 436aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy */ 437aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy public SurfaceTextureListener getSurfaceTextureListener() { 438aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy return mListener; 439aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 440aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 441aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy /** 442aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * Sets the {@link SurfaceTextureListener} used to listen to surface 443aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * texture events. 444aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 445aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @see #getSurfaceTextureListener() 446aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @see SurfaceTextureListener 447aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy */ 448aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy public void setSurfaceTextureListener(SurfaceTextureListener listener) { 449aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy mListener = listener; 450aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 451aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy 452aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy /** 453aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * This listener can be used to be notified when the surface texture 454aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * associated with this texture view is available. 455aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy */ 456aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy public static interface SurfaceTextureListener { 457aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy /** 458aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * Invoked when a {@link TextureView}'s SurfaceTexture is ready for use. 459aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * 460aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * @param surface The surface returned by 461aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy * {@link android.view.TextureView#getSurfaceTexture()} 462451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy * @param width The width of the surface 463451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy * @param height The height of the surface 464aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy */ 465451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height); 4668f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy 4678f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy /** 4688f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy * Invoked when the {@link SurfaceTexture}'s buffers size changed. 4698f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy * 4708f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy * @param surface The surface returned by 4718f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy * {@link android.view.TextureView#getSurfaceTexture()} 4728f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy * @param width The new width of the surface 4738f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy * @param height The new height of the surface 4748f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy */ 4758f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height); 476451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy 477451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy /** 478451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy * Invoked when the specified {@link SurfaceTexture} is about to be destroyed. 479451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy * After this method is invoked, no rendering should happen inside the surface 480451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy * texture. 481451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy * 482451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy * @param surface The surface about to be destroyed 483451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy */ 484451ce44a18e4c48f8a43aa250957f76967a35d31Romain Guy public void onSurfaceTextureDestroyed(SurfaceTexture surface); 485cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba 486cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba /** 487cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba * Invoked when the specified {@link SurfaceTexture} is updated through 488cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba * {@link SurfaceTexture#updateTexImage()}. 489cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba * 490cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba * @param surface The surface just updated 491cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba */ 492cf559377b750271472aa0a717bf3b7d34abc0b39Grace Kloba public void onSurfaceTextureUpdated(SurfaceTexture surface); 493aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy } 4948f0095cd33558e9cc8a440047908e53b68906f5fRomain Guy 495d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy private static native void nSetDefaultBufferSize(SurfaceTexture surfaceTexture, 496d6b2a00dd43257d1498b09175bff63663f6cb861Romain Guy int width, int height); 497aa6c24c21c727a196451332448d4e3b11a80be69Romain Guy} 498