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 public class ImageFilterSharpen extends ImageFilterRS {
23 private static final String LOGTAG = "ImageFilterSharpen";
24 private ScriptC_convolve3x3 mScript;
27 private FilterBasicRepresentation mParameters;
29 public ImageFilterSharpen() {
33 public FilterRepresentation getDefaultRepresentation() {
34 FilterRepresentation representation = new FilterBasicRepresentation("Sharpen", 0, 0, 100);
35 representation.setShowParameterValue(true);
36 representation.setFilterClass(ImageFilterSharpen.class);
37 representation.setTextId(R.string.sharpness);
38 representation.setButtonId(R.id.sharpenButton);
39 representation.setOverlayId(R.drawable.filtershow_button_colors_sharpen);
40 representation.setEditorId(R.id.imageZoom);
41 return representation;
44 public void useRepresentation(FilterRepresentation representation) {
45 FilterBasicRepresentation parameters = (FilterBasicRepresentation) representation;
46 mParameters = parameters;
50 public void createFilter(android.content.res.Resources res, float scaleFactor,
52 int w = mInPixelsAllocation.getType().getX();
53 int h = mInPixelsAllocation.getType().getY();
54 mScaleFactor = scaleFactor;
56 if (mScript == null) {
57 mScript = new ScriptC_convolve3x3(getRenderScriptContext(), res, R.raw.convolve3x3);
59 mScript.set_gWidth(w);
60 mScript.set_gHeight(h);
63 private void computeKernel(){
64 float p1 = mParameters.getValue() * mScaleFactor;
65 float value = p1 / 100.0f;
66 float f[] = new float[9];
77 mScript.set_gCoeffs(f);
81 public void runFilter() {
82 if (mParameters == null) {
86 mScript.set_gIn(mInPixelsAllocation);
87 mScript.bind_gPixels(mInPixelsAllocation);
88 mScript.forEach_root(mInPixelsAllocation, mOutPixelsAllocation);