1 /* 2 * Copyright (C) 2012 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.filtershow.filters; 18 19 import com.android.gallery3d.R; 20 21 import android.graphics.Bitmap; 22 23 public class ImageFilterExposure extends SimpleImageFilter { 24 25 public ImageFilterExposure() { 26 mName = "Exposure"; 27 } 28 29 public FilterRepresentation getDefaultRepresentation() { 30 FilterBasicRepresentation representation = 31 (FilterBasicRepresentation) super.getDefaultRepresentation(); 32 representation.setName("Exposure"); 33 representation.setFilterClass(ImageFilterExposure.class); 34 representation.setTextId(R.string.exposure); 35 representation.setButtonId(R.id.exposureButton); 36 representation.setMinimum(-100); 37 representation.setMaximum(100); 38 representation.setDefaultValue(0); 39 representation.setSupportsPartialRendering(true); 40 return representation; 41 } 42 43 native protected void nativeApplyFilter(Bitmap bitmap, int w, int h, float bright); 44 45 @Override 46 public Bitmap apply(Bitmap bitmap, float scaleFactor, int quality) { 47 if (getParameters() == null) { 48 return bitmap; 49 } 50 int w = bitmap.getWidth(); 51 int h = bitmap.getHeight(); 52 float value = getParameters().getValue(); 53 nativeApplyFilter(bitmap, w, h, value); 54 return bitmap; 55 } 56 } 57
