1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.gallery3d.photoeditor.filters; 18 19 import android.media.effect.Effect; 20 import android.media.effect.EffectFactory; 21 import android.os.Parcel; 22 23 import com.android.gallery3d.photoeditor.Photo; 24 25 /** 26 * Rotate filter applied to the image. 27 */ 28 public class RotateFilter extends Filter { 29 30 public static final Creator<RotateFilter> CREATOR = creatorOf(RotateFilter.class); 31 32 private float degrees; 33 34 /** 35 * Sets rotation angle which must be multiples of 90 degrees. 36 */ 37 public void setAngle(float degrees) { 38 this.degrees = degrees; 39 } 40 41 @Override 42 public void process(Photo src, Photo dst) { 43 if (degrees % 180 != 0) { 44 dst.changeDimension(src.height(), src.width()); 45 } 46 Effect effect = getEffect(EffectFactory.EFFECT_ROTATE); 47 effect.setParameter("angle", (int) degrees); 48 effect.apply(src.texture(), src.width(), src.height(), dst.texture()); 49 } 50 51 @Override 52 protected void writeToParcel(Parcel out) { 53 out.writeFloat(degrees); 54 } 55 56 @Override 57 protected void readFromParcel(Parcel in) { 58 degrees = in.readFloat(); 59 } 60 } 61
