1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
/*
* 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 android.graphics.Bitmap;
import android.graphics.Color;
public class ImageFilterBwFilter extends ImageFilter {
public ImageFilterBwFilter() {
mName = "BW Filter";
mMaxParameter = 180;
mMinParameter = -180;
}
@Override
public ImageFilter clone() throws CloneNotSupportedException {
ImageFilterBwFilter filter = (ImageFilterBwFilter) super.clone();
return filter;
}
native protected void nativeApplyFilter(Bitmap bitmap, int w, int h, int r, int g, int b);
@Override
public Bitmap apply(Bitmap bitmap, float scaleFactor, boolean highQuality) {
int w = bitmap.getWidth();
int h = bitmap.getHeight();
float[] hsv = new float[] {
180 + mParameter, 1, 1
};
int rgb = Color.HSVToColor(hsv);
int r = 0xFF & (rgb >> 16);
int g = 0xFF & (rgb >> 8);
int b = 0xFF & (rgb >> 0);
nativeApplyFilter(bitmap, w, h, r, g, b);
return bitmap;
}
}
|