1/*
2 Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies)
3 Copyright (C) 2013 Company 100, Inc.
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public
7 License as published by the Free Software Foundation; either
8 version 2 of the License, or (at your option) any later version.
9
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Library General Public License for more details.
14
15 You should have received a copy of the GNU Library General Public License
16 along with this library; see the file COPYING.LIB. If not, write to
17 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 Boston, MA 02110-1301, USA.
19*/
20
21#pragma once
22
23#if USE(COORDINATED_GRAPHICS)
24
25#include <WebCore/CoordinatedGraphicsState.h>
26#include <WebCore/GraphicsContext.h>
27#include <WebCore/GraphicsLayer.h>
28#include <WebCore/IntRect.h>
29#include <WebCore/IntSize.h>
30#include <WebCore/NicosiaPlatformLayer.h>
31#include <WebCore/TextureMapper.h>
32#include <WebCore/TextureMapperBackingStore.h>
33#include <WebCore/TextureMapperFPSCounter.h>
34#include <WebCore/TextureMapperLayer.h>
35#include <WebCore/TextureMapperPlatformLayerProxy.h>
36#include <WebCore/Timer.h>
37#include <wtf/Function.h>
38#include <wtf/HashSet.h>
39#include <wtf/Lock.h>
40#include <wtf/RunLoop.h>
41#include <wtf/ThreadingPrimitives.h>
42#include <wtf/Vector.h>
43
44namespace Nicosia {
45class Buffer;
46}
47
48namespace WebCore {
49class CoordinatedBackingStore;
50class TextureMapperGL;
51}
52
53namespace WebKit {
54
55class CoordinatedGraphicsSceneClient {
56public:
57 virtual ~CoordinatedGraphicsSceneClient() { }
58 virtual void updateViewport() = 0;
59};
60
61class CoordinatedGraphicsScene : public ThreadSafeRefCounted<CoordinatedGraphicsScene>, public WebCore::TextureMapperPlatformLayerProxy::Compositor {
62public:
63 explicit CoordinatedGraphicsScene(CoordinatedGraphicsSceneClient*);
64 virtual ~CoordinatedGraphicsScene();
65
66 void applyStateChanges(const Vector<WebCore::CoordinatedGraphicsState>&);
67 void paintToCurrentGLContext(const WebCore::TransformationMatrix&, const WebCore::FloatRect&, WebCore::TextureMapper::PaintFlags = 0);
68 void detach();
69
70 // The painting thread must lock the main thread to use below two methods, because two methods access members that the main thread manages. See m_client.
71 // Currently, QQuickWebPage::updatePaintNode() locks the main thread before calling both methods.
72 void purgeGLResources();
73
74 bool isActive() const { return m_isActive; }
75 void setActive(bool active) { m_isActive = active; }
76
77private:
78 void commitSceneState(const WebCore::CoordinatedGraphicsState::NicosiaState&);
79 void updateSceneState();
80
81 WebCore::TextureMapperLayer* rootLayer() { return m_rootLayer.get(); }
82
83 void updateViewport();
84
85 void ensureRootLayer();
86
87 void onNewBufferAvailable() override;
88
89 struct {
90 RefPtr<Nicosia::Scene> scene;
91 Nicosia::Scene::State state;
92 } m_nicosia;
93
94 std::unique_ptr<WebCore::TextureMapper> m_textureMapper;
95
96 // Below two members are accessed by only the main thread. The painting thread must lock the main thread to access both members.
97 CoordinatedGraphicsSceneClient* m_client;
98 bool m_isActive { false };
99
100 std::unique_ptr<WebCore::TextureMapperLayer> m_rootLayer;
101
102 Nicosia::PlatformLayer::LayerID m_rootLayerID { 0 };
103
104 WebCore::TextureMapperFPSCounter m_fpsCounter;
105};
106
107} // namespace WebKit
108
109#endif // USE(COORDINATED_GRAPHICS)
110
111
112