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
|
/*
* Copyright (C) 2011, 2012, 2013 Research In Motion Limited. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef LayerTile_h
#define LayerTile_h
#if USE(ACCELERATED_COMPOSITING)
#include "LayerTexture.h"
#include <wtf/RefPtr.h>
namespace WebCore {
class IntRect;
class TileIndex;
class LayerTile {
WTF_MAKE_FAST_ALLOCATED;
public:
LayerTile();
~LayerTile();
LayerTexture* texture() const { return m_texture.get(); }
bool isVisible() const { return m_visible; }
void setVisible(bool);
bool isDirty() const { return m_contentsDirty || !m_texture || m_texture->isDirty(); }
bool hasTexture() const { return m_texture && m_texture->buffer(); }
void setContents(BlackBerry::Platform::Graphics::Buffer*);
void updateContents(BlackBerry::Platform::Graphics::Buffer*, double scale);
void discardContents();
// Returns 0 if contents are resolution independent or scale is simply unknown.
double contentsScale() const { return m_scale; }
// The texture contents are dirty due to appearance of page changing, or a change in contents scale.
void setContentsDirty() { m_contentsDirty = true; }
private:
void setTexture(PassRefPtr<LayerTexture>);
// Never assign to m_texture directly, use setTexture() above.
RefPtr<LayerTexture> m_texture;
double m_scale;
bool m_contentsDirty : 1;
bool m_visible : 1;
};
}
#endif // USE(ACCELERATED_COMPOSITING)
#endif // Texture_h
|
