165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn/* 265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * Copyright (C) 2011 The Android Open Source Project 365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * 465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * Licensed under the Apache License, Version 2.0 (the "License"); 565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * you may not use this file except in compliance with the License. 665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * You may obtain a copy of the License at 765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * 865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * http://www.apache.org/licenses/LICENSE-2.0 965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * 1065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * Unless required by applicable law or agreed to in writing, software 1165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * distributed under the License is distributed on an "AS IS" BASIS, 1265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * See the License for the specific language governing permissions and 1465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * limitations under the License. 1565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn */ 1665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 1765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 1865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennpackage android.filterfw.core; 1965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 2065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.content.Context; 2165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.util.AttributeSet; 2265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.view.SurfaceHolder; 2365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.view.SurfaceView; 2465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 2565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn/** 2665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * @hide 2765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn */ 2865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennpublic class FilterSurfaceView extends SurfaceView implements SurfaceHolder.Callback { 2965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 3065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private static int STATE_ALLOCATED = 0; 3165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private static int STATE_CREATED = 1; 3265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private static int STATE_INITIALIZED = 2; 3365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 3465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mState = STATE_ALLOCATED; 3565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private SurfaceHolder.Callback mListener; 3665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private GLEnvironment mGLEnv; 3765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mFormat; 3865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mWidth; 3965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mHeight; 4065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mSurfaceId = -1; 4165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public FilterSurfaceView(Context context) { 4365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn super(context); 4465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn getHolder().addCallback(this); 4565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 4665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public FilterSurfaceView(Context context, AttributeSet attrs) { 4865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn super(context, attrs); 4965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn getHolder().addCallback(this); 5065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 5165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 5265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public synchronized void bindToListener(SurfaceHolder.Callback listener, GLEnvironment glEnv) { 5365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Make sure we are not bound already 5465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (listener == null) { 5565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn throw new NullPointerException("Attempting to bind null filter to SurfaceView!"); 5665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } else if (mListener != null && mListener != listener) { 5765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn throw new RuntimeException( 5865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn "Attempting to bind filter " + listener + " to SurfaceView with another open " 5965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn + "filter " + mListener + " attached already!"); 6065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 6165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 6265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Set listener 6365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mListener = listener; 6465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 6565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Set GLEnv 6665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mGLEnv != null && mGLEnv != glEnv) { 6765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mGLEnv.unregisterSurfaceId(mSurfaceId); 6865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 6965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mGLEnv = glEnv; 7065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 7165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Check if surface has been created already 7265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mState >= STATE_CREATED) { 7365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Register with env (double registration will be ignored by GLEnv, so we can simply 7465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // try to do it here). 7565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn registerSurface(); 7665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 7765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Forward surface created to listener 7865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mListener.surfaceCreated(getHolder()); 7965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 8065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Forward surface changed to listener 8165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mState == STATE_INITIALIZED) { 8265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mListener.surfaceChanged(getHolder(), mFormat, mWidth, mHeight); 8365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 8465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 8565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 8665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 8765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public synchronized void unbind() { 8865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mListener = null; 8965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 9065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 9165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public synchronized int getSurfaceId() { 9265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn return mSurfaceId; 9365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 9465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 9565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public synchronized GLEnvironment getGLEnv() { 9665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn return mGLEnv; 9765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 9865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 9965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 10065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public synchronized void surfaceCreated(SurfaceHolder holder) { 10165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mState = STATE_CREATED; 10265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 10365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Register with GLEnvironment if we have it already 10465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mGLEnv != null) { 10565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn registerSurface(); 10665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 10765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 10865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Forward callback to listener 10965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mListener != null) { 11065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mListener.surfaceCreated(holder); 11165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 11265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 11365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 11465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 11565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public synchronized void surfaceChanged(SurfaceHolder holder, 11665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn int format, 11765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn int width, 11865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn int height) { 11965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Remember these values 12065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mFormat = format; 12165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mWidth = width; 12265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mHeight = height; 12365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mState = STATE_INITIALIZED; 12465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 12565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Forward to renderer 12665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mListener != null) { 12765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mListener.surfaceChanged(holder, format, width, height); 12865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 12965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 13065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 13165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 13265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public synchronized void surfaceDestroyed(SurfaceHolder holder) { 13365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mState = STATE_ALLOCATED; 13465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 13565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Forward to renderer 13665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mListener != null) { 13765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mListener.surfaceDestroyed(holder); 13865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 13965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 14065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Get rid of internal objects associated with this surface 14165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn unregisterSurface(); 14265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 14365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 14465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private void registerSurface() { 14565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mSurfaceId = mGLEnv.registerSurface(getHolder().getSurface()); 14665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mSurfaceId < 0) { 14765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn throw new RuntimeException("Could not register Surface: " + getHolder().getSurface() + 14865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " in FilterSurfaceView!"); 14965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 15065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 15165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private void unregisterSurface() { 15265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mGLEnv != null && mSurfaceId > 0) { 15365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mGLEnv.unregisterSurfaceId(mSurfaceId); 15465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 15565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 15665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 15765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn} 158