2 * Copyright (C) 2012 The Android Open Source Project
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 package com.android.gallery3d.filtershow.filters;
19 import com.android.gallery3d.R;
21 import android.graphics.Bitmap;
23 public class ImageFilterExposure extends SimpleImageFilter {
25 public ImageFilterExposure() {
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;
43 native protected void nativeApplyFilter(Bitmap bitmap, int w, int h, float bright);
46 public Bitmap apply(Bitmap bitmap, float scaleFactor, int quality) {
47 if (getParameters() == null) {
50 int w = bitmap.getWidth();
51 int h = bitmap.getHeight();
52 float value = getParameters().getValue();
53 nativeApplyFilter(bitmap, w, h, value);