1/* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.media.effect; 18 19import android.filterfw.core.Filter; 20import android.filterfw.core.FilterFactory; 21import android.filterfw.core.FilterFunction; 22import android.filterfw.core.Frame; 23import android.media.effect.Effect; 24import android.media.effect.EffectContext; 25 26import android.util.Log; 27 28/** 29 * Effect subclass for effects based on a single Filter with output size differnet 30 * from input. Subclasses need only invoke the constructor with the correct arguments 31 * to obtain an Effect implementation. 32 * 33 * @hide 34 */ 35public class SizeChangeEffect extends SingleFilterEffect { 36 37 public SizeChangeEffect(EffectContext context, 38 String name, 39 Class filterClass, 40 String inputName, 41 String outputName, 42 Object... finalParameters) { 43 super(context, name, filterClass, inputName, outputName, finalParameters); 44 } 45 46 @Override 47 public void apply(int inputTexId, int width, int height, int outputTexId) { 48 beginGLEffect(); 49 50 Frame inputFrame = frameFromTexture(inputTexId, width, height); 51 Frame resultFrame = mFunction.executeWithArgList(mInputName, inputFrame); 52 53 int outputWidth = resultFrame.getFormat().getWidth(); 54 int outputHeight = resultFrame.getFormat().getHeight(); 55 56 Frame outputFrame = frameFromTexture(outputTexId, outputWidth, outputHeight); 57 outputFrame.setDataFromFrame(resultFrame); 58 59 inputFrame.release(); 60 outputFrame.release(); 61 resultFrame.release(); 62 63 endGLEffect(); 64 } 65} 66