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.setButtonId(R.id.sharpenButton);
39 representation.setOverlayId(R.drawable.filtershow_button_colors_sharpen);
40 representation.setEditorId(R.id.imageShow);
41 representation.setSupportsPartialRendering(true);
42 return representation;
45 public void useRepresentation(FilterRepresentation representation) {
46 FilterBasicRepresentation parameters = (FilterBasicRepresentation) representation;
47 mParameters = parameters;
51 protected void resetAllocations() {
56 public void resetScripts() {
57 if (mScript != null) {
64 protected void createFilter(android.content.res.Resources res, float scaleFactor,
66 if (mScript == null) {
67 mScript = new ScriptC_convolve3x3(getRenderScriptContext(), res, R.raw.convolve3x3);
71 private void computeKernel() {
72 float scaleFactor = getEnvironment().getScaleFactor();
73 float p1 = mParameters.getValue() * scaleFactor;
74 float value = p1 / 100.0f;
75 float f[] = new float[9];
86 mScript.set_gCoeffs(f);
90 protected void bindScriptValues() {
91 int w = getInPixelsAllocation().getType().getX();
92 int h = getInPixelsAllocation().getType().getY();
93 mScript.set_gWidth(w);
94 mScript.set_gHeight(h);
98 protected void runFilter() {
99 if (mParameters == null) {
103 mScript.set_gIn(getInPixelsAllocation());
104 mScript.bind_gPixels(getInPixelsAllocation());
105 mScript.forEach_root(getInPixelsAllocation(), getOutPixelsAllocation());