| /* |
| * Copyright (C) 2012 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.gallery3d.filtershow.filters; |
| |
| import com.android.gallery3d.R; |
| import com.android.gallery3d.filtershow.editors.BasicEditor; |
| |
| import android.graphics.Bitmap; |
| |
| public class ImageFilterHue extends SimpleImageFilter { |
| private ColorSpaceMatrix cmatrix = null; |
| |
| public ImageFilterHue() { |
| mName = "Hue"; |
| cmatrix = new ColorSpaceMatrix(); |
| } |
| |
| public FilterRepresentation getDefaultRepresentation() { |
| FilterBasicRepresentation representation = |
| (FilterBasicRepresentation) super.getDefaultRepresentation(); |
| representation.setName("Hue"); |
| representation.setFilterClass(ImageFilterHue.class); |
| representation.setMinimum(-180); |
| representation.setMaximum(180); |
| representation.setTextId(R.string.hue); |
| representation.setButtonId(R.id.hueButton); |
| representation.setEditorId(BasicEditor.ID); |
| representation.setSupportsPartialRendering(true); |
| return representation; |
| } |
| |
| native protected void nativeApplyFilter(Bitmap bitmap, int w, int h, float []matrix); |
| |
| @Override |
| public Bitmap apply(Bitmap bitmap, float scaleFactor, int quality) { |
| if (getParameters() == null) { |
| return bitmap; |
| } |
| int w = bitmap.getWidth(); |
| int h = bitmap.getHeight(); |
| float value = getParameters().getValue(); |
| cmatrix.identity(); |
| cmatrix.setHue(value); |
| |
| nativeApplyFilter(bitmap, w, h, cmatrix.getMatrix()); |
| |
| return bitmap; |
| } |
| } |