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
|
/*
* Copyright (C) 2010, 2011, 2012 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 EGLImageLayerWebKitThread_h
#define EGLImageLayerWebKitThread_h
#if USE(ACCELERATED_COMPOSITING)
#include "EGLImageLayerCompositingThreadClient.h"
#include "LayerWebKitThread.h"
namespace BlackBerry {
namespace Platform {
namespace Graphics {
class GLES2SharedTexture;
class GLES2SharedTextureAccessor;
}
}
}
namespace WebCore {
// Base class for EGLImage based layers
// The subclass must reimplement updateTextureContentsIfNeeded() to call updateFrontBuffer
// with the appropriate parameters, and make sure to call deleteFrontBuffer() from its
// destructor.
class EGLImageLayerWebKitThread : public LayerWebKitThread {
public:
virtual ~EGLImageLayerWebKitThread();
virtual void setNeedsDisplay();
protected:
EGLImageLayerWebKitThread(LayerType);
virtual void updateTextureContentsIfNeeded() = 0;
virtual void commitPendingTextureUploads();
virtual void deleteTextures() = 0;
// The context must be current before you call any of these
void updateFrontBuffer(const IntSize&, unsigned backBufferTexture);
void deleteFrontBuffer();
private:
bool createTextureIfNeeded(const IntSize&);
void createShaderIfNeeded();
void blitToFrontBuffer(unsigned backBufferTexture);
RefPtr<EGLImageLayerCompositingThreadClient> m_client;
bool m_needsDisplay;
unsigned m_program;
BlackBerry::Platform::Graphics::GLES2SharedTexture* m_texture;
BlackBerry::Platform::Graphics::GLES2SharedTextureAccessor* m_textureAccessor;
IntSize m_size;
};
}
#endif // USE(ACCELERATED_COMPOSITING)
#endif // EGLImageLayerWebKitThread_h
|
