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 {
22 private static final String SERIALIZATION_NAME = "SHARPEN";
23 private static final String LOGTAG = "ImageFilterSharpen";
24 private ScriptC_convolve3x3 mScript;
26 private FilterBasicRepresentation mParameters;
28 public ImageFilterSharpen() {
32 public FilterRepresentation getDefaultRepresentation() {
33 FilterRepresentation representation = new FilterBasicRepresentation("Sharpen", 0, 0, 100);
34 representation.setSerializationName(SERIALIZATION_NAME);
35 representation.setShowParameterValue(true);
36 representation.setFilterClass(ImageFilterSharpen.class);
37 representation.setTextId(R.string.sharpness);
38 representation.setOverlayId(R.drawable.filtershow_button_colors_sharpen);
39 representation.setEditorId(R.id.imageShow);
40 representation.setSupportsPartialRendering(true);
41 return representation;
44 public void useRepresentation(FilterRepresentation representation) {
45 FilterBasicRepresentation parameters = (FilterBasicRepresentation) representation;
46 mParameters = parameters;
50 protected void resetAllocations() {
55 public void resetScripts() {
56 if (mScript != null) {
63 protected void createFilter(android.content.res.Resources res, float scaleFactor,
65 if (mScript == null) {
66 mScript = new ScriptC_convolve3x3(getRenderScriptContext(), res, R.raw.convolve3x3);
70 private void computeKernel() {
71 float scaleFactor = getEnvironment().getScaleFactor();
72 float p1 = mParameters.getValue() * scaleFactor;
73 float value = p1 / 100.0f;
74 float f[] = new float[9];
85 mScript.set_gCoeffs(f);
89 protected void bindScriptValues() {
90 int w = getInPixelsAllocation().getType().getX();
91 int h = getInPixelsAllocation().getType().getY();
92 mScript.set_gWidth(w);
93 mScript.set_gHeight(h);
97 protected void runFilter() {
98 if (mParameters == null) {
102 mScript.set_gIn(getInPixelsAllocation());
103 mScript.bind_gPixels(getInPixelsAllocation());
104 mScript.forEach_root(getInPixelsAllocation(), getOutPixelsAllocation());