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
|
/*
Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef TextureMapperBackingStore_h
#define TextureMapperBackingStore_h
#include "FloatRect.h"
#include "Image.h"
#include "RefPtr.h"
#include "TextureMapper.h"
#include "TextureMapperPlatformLayer.h"
namespace WebCore {
class GraphicsLayer;
class TextureMapperBackingStore : public TextureMapperPlatformLayer, public RefCounted<TextureMapperBackingStore> {
public:
virtual PassRefPtr<BitmapTexture> texture() const = 0;
virtual void paintToTextureMapper(TextureMapper*, const FloatRect&, const TransformationMatrix&, float, BitmapTexture*) = 0;
virtual ~TextureMapperBackingStore() { }
};
class TextureMapperTile {
public:
inline PassRefPtr<BitmapTexture> texture() const { return m_texture; }
inline FloatRect rect() const { return m_rect; }
inline void setTexture(BitmapTexture* texture) { m_texture = texture; }
inline void setRect(const FloatRect& rect) { m_rect = rect; }
void updateContents(TextureMapper*, Image*, const IntRect&, BitmapTexture::PixelFormat);
virtual void paint(TextureMapper*, const TransformationMatrix&, float, BitmapTexture*);
virtual ~TextureMapperTile() { }
TextureMapperTile(const FloatRect& rect)
: m_rect(rect)
{
}
private:
RefPtr<BitmapTexture> m_texture;
FloatRect m_rect;
};
class TextureMapperTiledBackingStore : public TextureMapperBackingStore {
public:
void updateContentsFromLayer(TextureMapper*, GraphicsLayer*, const IntRect&);
virtual ~TextureMapperTiledBackingStore() { }
virtual void paintToTextureMapper(TextureMapper*, const FloatRect&, const TransformationMatrix&, float, BitmapTexture*);
virtual PassRefPtr<BitmapTexture> texture() const;
void updateContents(TextureMapper*, Image*, const FloatSize&, const IntRect&, BitmapTexture::PixelFormat);
void updateContents(TextureMapper* textureMapper, Image* image, BitmapTexture::PixelFormat format) { updateContents(textureMapper, image, image->size(), image->rect(), format); }
inline FloatRect rect() const { return FloatRect(FloatPoint::zero(), m_size); }
static PassRefPtr<TextureMapperTiledBackingStore> create() { return adoptRef(new TextureMapperTiledBackingStore); }
void setContentsToImage(Image* image) { m_image = image; }
void updateContentsFromImageIfNeeded(TextureMapper*);
private:
TextureMapperTiledBackingStore() { }
void createOrDestroyTilesIfNeeded(const FloatSize& backingStoreSize, const IntSize& tileSize, bool hasAlpha);
Vector<TextureMapperTile> m_tiles;
FloatSize m_size;
RefPtr<Image> m_image;
};
}
#endif // TextureMapperBackingStore_h
|
