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
|
/*
* Copyright (c) 2006,2007,2008, Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef BitmapImageSingleFrameSkia_h
#define BitmapImageSingleFrameSkia_h
#include "Image.h"
#include "NativeImageSkia.h"
namespace WebCore {
// This image class can be used in places which need an Image, but have
// raw pixel data rather than undecoded image data.
// The Image is simpler than a BitmapImage, as it does not have image
// observers, animation, multiple frames, or non-decoded data.
// Therefore trimming the decoded data (destroyDecodedData()) has no effect.
//
// The difficulty with putting this in BitmapImage::create(NativeImagePtr)
// is that NativeImagePtr = NativeImageSkia, yet callers have SkBitmap.
class BitmapImageSingleFrameSkia : public Image {
public:
// Creates a new Image, by copying the pixel values out of |bitmap|.
// If creation failed, returns null.
static PassRefPtr<BitmapImageSingleFrameSkia> create(const SkBitmap&);
virtual bool isBitmapImage() const { return true; }
virtual IntSize size() const
{
return IntSize(m_nativeImage.width(), m_nativeImage.height());
}
// Do nothing, as we only have the one representation of data (decoded).
virtual void destroyDecodedData(bool destroyAll = true) { }
virtual unsigned decodedSize() const
{
return m_nativeImage.decodedSize();
}
// We only have a single frame.
virtual NativeImagePtr nativeImageForCurrentFrame()
{
return &m_nativeImage;
}
protected:
virtual void draw(GraphicsContext*, const FloatRect& dstRect, const FloatRect& srcRect, ColorSpace styleColorSpace, CompositeOperator);
private:
NativeImageSkia m_nativeImage;
// Use create().
BitmapImageSingleFrameSkia() { }
};
} // namespace WebCore
#endif // BitmapImageSingleFrameSkia_h
|
