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
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
|
/*
* 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.Canvas;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.Rect;
import android.graphics.RectF;
import com.android.gallery3d.filtershow.imageshow.GeometryMetadata;
public class ImageFilterGeometry extends ImageFilter {
private final Bitmap.Config mConfig = Bitmap.Config.ARGB_8888;
private GeometryMetadata mGeometry = null;
private static final String LOGTAG = "ImageFilterGeometry";
private static final boolean LOGV = false;
private static final int BOTH = 3;
private static final int VERTICAL = 2;
private static final int HORIZONTAL = 1;
private static final int NINETY = 1;
private static final int ONE_EIGHTY = 2;
private static final int TWO_SEVENTY = 3;
public ImageFilterGeometry() {
mName = "Geometry";
}
@Override
public ImageFilter clone() throws CloneNotSupportedException {
ImageFilterGeometry filter = (ImageFilterGeometry) super.clone();
return filter;
}
public void setGeometryMetadata(GeometryMetadata m) {
mGeometry = m;
}
native protected void nativeApplyFilterFlip(Bitmap src, int srcWidth, int srcHeight,
Bitmap dst, int dstWidth, int dstHeight, int flip);
native protected void nativeApplyFilterRotate(Bitmap src, int srcWidth, int srcHeight,
Bitmap dst, int dstWidth, int dstHeight, int rotate);
native protected void nativeApplyFilterCrop(Bitmap src, int srcWidth, int srcHeight,
Bitmap dst, int dstWidth, int dstHeight, int offsetWidth, int offsetHeight);
native protected void nativeApplyFilterStraighten(Bitmap src, int srcWidth, int srcHeight,
Bitmap dst, int dstWidth, int dstHeight, float straightenAngle);
public Matrix buildMatrix(RectF r) {
float dx = r.width() / 2;
float dy = r.height() / 2;
if (mGeometry.hasSwitchedWidthHeight()) {
float temp = dx;
dx = dy;
dy = temp;
}
float w = r.left * 2 + r.width();
float h = r.top * 2 + r.height();
Matrix m = mGeometry.buildGeometryMatrix(w, h, 1f, dx, dy, false);
return m;
}
@Override
public Bitmap apply(Bitmap bitmap, float scaleFactor, boolean highQuality) {
// TODO: implement bilinear or bicubic here... for now, just use
// canvas to do a simple implementation...
// TODO: and be more memory efficient! (do it in native?)
Rect cropBounds = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
RectF crop = mGeometry.getCropBounds(bitmap);
if (crop.width() > 0 && crop.height() > 0)
crop.roundOut(cropBounds);
Bitmap temp = null;
if (mGeometry.hasSwitchedWidthHeight()) {
temp = Bitmap.createBitmap(cropBounds.height(), cropBounds.width(), mConfig);
} else {
temp = Bitmap.createBitmap(cropBounds.width(), cropBounds.height(), mConfig);
}
Matrix drawMatrix = buildMatrix(crop);
/*
RectF rp = mGeometry.getPhotoBounds();
RectF rc = mGeometry.getPreviewCropBounds();
// TODO: fix this method instead of calling the above buildMatrix()
Matrix drawMatrix = mGeometry.buildTotalXform(rp.width(), rp.height(), rc.width(),
rc.height(), rc.left, rc.top,
mGeometry.getRotation(), mGeometry.getStraightenRotation(),
bitmap.getWidth() / rp.width(), null);
*/
Canvas canvas = new Canvas(temp);
Paint paint = new Paint();
paint.setAntiAlias(true);
paint.setFilterBitmap(true);
paint.setDither(true);
canvas.drawBitmap(bitmap, drawMatrix, paint);
return temp;
}
}
|
