1/*
2 * Copyright (C) 2011 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1.  Redistributions of source code must retain the above copyright
9 *     notice, this list of conditions and the following disclaimer.
10 * 2.  Redistributions in binary form must reproduce the above copyright
11 *     notice, this list of conditions and the following disclaimer in the
12 *     documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef CCVideoLayerImpl_h
27#define CCVideoLayerImpl_h
28
29#include "ProgramBinding.h"
30#include "ShaderChromium.h"
31#include "VideoFrameChromium.h"
32#include "VideoLayerChromium.h"
33#include "cc/CCLayerImpl.h"
34
35namespace WebCore {
36
37class VideoFrameProvider;
38
39class CCVideoLayerImpl : public CCLayerImpl {
40public:
41    static PassRefPtr<CCVideoLayerImpl> create(LayerChromium* owner)
42    {
43        return adoptRef(new CCVideoLayerImpl(owner));
44    }
45    virtual ~CCVideoLayerImpl();
46
47    typedef ProgramBinding<VertexShaderPosTexTransform, FragmentShaderRGBATexFlipAlpha> RGBAProgram;
48    typedef ProgramBinding<VertexShaderPosTexYUVStretch, FragmentShaderYUVVideo> YUVProgram;
49
50    virtual void draw(const IntRect&);
51
52    virtual void dumpLayerProperties(TextStream&, int indent) const;
53
54    void setSkipsDraw(bool skipsDraw) { m_skipsDraw = skipsDraw; }
55    void setFrameFormat(VideoFrameChromium::Format format) { m_frameFormat = format; }
56    void setTexture(size_t, VideoLayerChromium::Texture);
57
58private:
59    explicit CCVideoLayerImpl(LayerChromium*);
60
61    void drawYUV(const YUVProgram*) const;
62    void drawRGBA(const RGBAProgram*) const;
63
64    static const float yuv2RGB[9];
65    static const float yuvAdjust[3];
66
67    bool m_skipsDraw;
68    VideoFrameChromium::Format m_frameFormat;
69    VideoLayerChromium::Texture m_textures[3];
70};
71
72}
73
74#endif // CCVideoLayerImpl_h
75