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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // This class is an implementation of the ChromotingView for Pepper. It is | 5 // This class is an implementation of the ChromotingView for Pepper. It is |
6 // callable only on the Pepper thread. | 6 // callable only on the Pepper thread. |
7 | 7 |
8 #ifndef REMOTING_CLIENT_PLUGIN_PEPPER_VIEW_H_ | 8 #ifndef REMOTING_CLIENT_PLUGIN_PEPPER_VIEW_H_ |
9 #define REMOTING_CLIENT_PLUGIN_PEPPER_VIEW_H_ | 9 #define REMOTING_CLIENT_PLUGIN_PEPPER_VIEW_H_ |
10 | 10 |
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34 class PepperView : public FrameConsumer { | 34 class PepperView : public FrameConsumer { |
35 public: | 35 public: |
36 // Constructs a PepperView for the |instance|. The |instance|, |context| | 36 // Constructs a PepperView for the |instance|. The |instance|, |context| |
37 // and |producer| must outlive this class. | 37 // and |producer| must outlive this class. |
38 PepperView(ChromotingInstance* instance, | 38 PepperView(ChromotingInstance* instance, |
39 ClientContext* context, | 39 ClientContext* context, |
40 FrameProducer* producer); | 40 FrameProducer* producer); |
41 virtual ~PepperView(); | 41 virtual ~PepperView(); |
42 | 42 |
43 // FrameConsumer implementation. | 43 // FrameConsumer implementation. |
44 virtual void ApplyBuffer(const SkISize& view_size, | 44 virtual void ApplyBuffer(const webrtc::DesktopSize& view_size, |
45 const SkIRect& clip_area, | 45 const webrtc::DesktopRect& clip_area, |
46 webrtc::DesktopFrame* buffer, | 46 webrtc::DesktopFrame* buffer, |
47 const SkRegion& region) OVERRIDE; | 47 const webrtc::DesktopRegion& region) OVERRIDE; |
48 virtual void ReturnBuffer(webrtc::DesktopFrame* buffer) OVERRIDE; | 48 virtual void ReturnBuffer(webrtc::DesktopFrame* buffer) OVERRIDE; |
49 virtual void SetSourceSize(const SkISize& source_size, | 49 virtual void SetSourceSize(const webrtc::DesktopSize& source_size, |
50 const SkIPoint& dpi) OVERRIDE; | 50 const webrtc::DesktopVector& dpi) OVERRIDE; |
51 | 51 |
52 // Updates the PepperView's size & clipping area, taking into account the | 52 // Updates the PepperView's size & clipping area, taking into account the |
53 // DIP-to-device scale factor. | 53 // DIP-to-device scale factor. |
54 void SetView(const pp::View& view); | 54 void SetView(const pp::View& view); |
55 | 55 |
56 // Returns the dimensions of the most recently displayed frame, in pixels. | 56 // Returns the dimensions of the most recently displayed frame, in pixels. |
57 const SkISize& get_source_size() const { | 57 const webrtc::DesktopSize& get_source_size() const { |
58 return source_size_; | 58 return source_size_; |
59 } | 59 } |
60 | 60 |
61 // Return the dimensions of the view in Density Independent Pixels (DIPs). | 61 // Return the dimensions of the view in Density Independent Pixels (DIPs). |
62 // Note that there may be multiple device pixels per DIP. | 62 // Note that there may be multiple device pixels per DIP. |
63 const SkISize& get_view_size_dips() const { | 63 const webrtc::DesktopSize& get_view_size_dips() const { |
64 return dips_size_; | 64 return dips_size_; |
65 } | 65 } |
66 | 66 |
67 private: | 67 private: |
68 // Allocates a new frame buffer to supply to the FrameProducer to render into. | 68 // Allocates a new frame buffer to supply to the FrameProducer to render into. |
69 // Returns NULL if the maximum number of buffers has already been allocated. | 69 // Returns NULL if the maximum number of buffers has already been allocated. |
70 webrtc::DesktopFrame* AllocateBuffer(); | 70 webrtc::DesktopFrame* AllocateBuffer(); |
71 | 71 |
72 // Frees a frame buffer previously allocated by AllocateBuffer. | 72 // Frees a frame buffer previously allocated by AllocateBuffer. |
73 void FreeBuffer(webrtc::DesktopFrame* buffer); | 73 void FreeBuffer(webrtc::DesktopFrame* buffer); |
74 | 74 |
75 // Allocates buffers and passes them to the FrameProducer to render into until | 75 // Allocates buffers and passes them to the FrameProducer to render into until |
76 // the maximum number of buffers are in-flight. | 76 // the maximum number of buffers are in-flight. |
77 void InitiateDrawing(); | 77 void InitiateDrawing(); |
78 | 78 |
79 // Renders the parts of |buffer| identified by |region| to the view. If the | 79 // Renders the parts of |buffer| identified by |region| to the view. If the |
80 // clip area of the view has changed since the buffer was generated then | 80 // clip area of the view has changed since the buffer was generated then |
81 // FrameProducer is supplied the missed parts of |region|. The FrameProducer | 81 // FrameProducer is supplied the missed parts of |region|. The FrameProducer |
82 // will be supplied a new buffer when FlushBuffer() completes. | 82 // will be supplied a new buffer when FlushBuffer() completes. |
83 void FlushBuffer(const SkIRect& clip_area, | 83 void FlushBuffer(const webrtc::DesktopRect& clip_area, |
84 webrtc::DesktopFrame* buffer, | 84 webrtc::DesktopFrame* buffer, |
85 const SkRegion& region); | 85 const webrtc::DesktopRegion& region); |
86 | 86 |
87 // Handles completion of FlushBuffer(), triggering a new buffer to be | 87 // Handles completion of FlushBuffer(), triggering a new buffer to be |
88 // returned to FrameProducer for rendering. | 88 // returned to FrameProducer for rendering. |
89 void OnFlushDone(int result, | 89 void OnFlushDone(int result, |
90 const base::Time& paint_start, | 90 const base::Time& paint_start, |
91 webrtc::DesktopFrame* buffer); | 91 webrtc::DesktopFrame* buffer); |
92 | 92 |
93 // Reference to the creating plugin instance. Needed for interacting with | 93 // Reference to the creating plugin instance. Needed for interacting with |
94 // pepper. Marking explicitly as const since it must be initialized at | 94 // pepper. Marking explicitly as const since it must be initialized at |
95 // object creation, and never change. | 95 // object creation, and never change. |
96 ChromotingInstance* const instance_; | 96 ChromotingInstance* const instance_; |
97 | 97 |
98 // Context should be constant for the lifetime of the plugin. | 98 // Context should be constant for the lifetime of the plugin. |
99 ClientContext* const context_; | 99 ClientContext* const context_; |
100 | 100 |
101 pp::Graphics2D graphics2d_; | 101 pp::Graphics2D graphics2d_; |
102 | 102 |
103 FrameProducer* producer_; | 103 FrameProducer* producer_; |
104 | 104 |
105 // List of allocated image buffers. | 105 // List of allocated image buffers. |
106 std::list<webrtc::DesktopFrame*> buffers_; | 106 std::list<webrtc::DesktopFrame*> buffers_; |
107 | 107 |
108 // Queued buffer to paint, with clip area and dirty region in device pixels. | 108 // Queued buffer to paint, with clip area and dirty region in device pixels. |
109 webrtc::DesktopFrame* merge_buffer_; | 109 webrtc::DesktopFrame* merge_buffer_; |
110 SkIRect merge_clip_area_; | 110 webrtc::DesktopRect merge_clip_area_; |
111 SkRegion merge_region_; | 111 webrtc::DesktopRegion merge_region_; |
112 | 112 |
113 // View size in Density Independent Pixels (DIPs). | 113 // View size in Density Independent Pixels (DIPs). |
114 SkISize dips_size_; | 114 webrtc::DesktopSize dips_size_; |
115 | 115 |
116 // Scale factor from DIPs to device pixels. | 116 // Scale factor from DIPs to device pixels. |
117 float dips_to_device_scale_; | 117 float dips_to_device_scale_; |
118 | 118 |
119 // View size in output pixels. This is the size at which FrameProducer must | 119 // View size in output pixels. This is the size at which FrameProducer must |
120 // render frames. It usually matches the DIPs size of the view, but may match | 120 // render frames. It usually matches the DIPs size of the view, but may match |
121 // the size in device pixels when scaling is in effect, to reduce artefacts. | 121 // the size in device pixels when scaling is in effect, to reduce artefacts. |
122 SkISize view_size_; | 122 webrtc::DesktopSize view_size_; |
123 | 123 |
124 // Scale factor from output pixels to device pixels. | 124 // Scale factor from output pixels to device pixels. |
125 float dips_to_view_scale_; | 125 float dips_to_view_scale_; |
126 | 126 |
127 // Visible area of the view, in output pixels. | 127 // Visible area of the view, in output pixels. |
128 SkIRect clip_area_; | 128 webrtc::DesktopRect clip_area_; |
129 | 129 |
130 // Size of the most recent source frame in pixels. | 130 // Size of the most recent source frame in pixels. |
131 SkISize source_size_; | 131 webrtc::DesktopSize source_size_; |
132 | 132 |
133 // Resolution of the most recent source frame dots-per-inch. | 133 // Resolution of the most recent source frame dots-per-inch. |
134 SkIPoint source_dpi_; | 134 webrtc::DesktopVector source_dpi_; |
135 | 135 |
136 // True if there is already a Flush() pending on the Graphics2D context. | 136 // True if there is already a Flush() pending on the Graphics2D context. |
137 bool flush_pending_; | 137 bool flush_pending_; |
138 | 138 |
139 // True after Initialize() has been called, until TearDown(). | 139 // True after Initialize() has been called, until TearDown(). |
140 bool is_initialized_; | 140 bool is_initialized_; |
141 | 141 |
142 // True after the first call to ApplyBuffer(). | 142 // True after the first call to ApplyBuffer(). |
143 bool frame_received_; | 143 bool frame_received_; |
144 | 144 |
145 pp::CompletionCallbackFactory<PepperView> callback_factory_; | 145 pp::CompletionCallbackFactory<PepperView> callback_factory_; |
146 | 146 |
147 DISALLOW_COPY_AND_ASSIGN(PepperView); | 147 DISALLOW_COPY_AND_ASSIGN(PepperView); |
148 }; | 148 }; |
149 | 149 |
150 } // namespace remoting | 150 } // namespace remoting |
151 | 151 |
152 #endif // REMOTING_CLIENT_PLUGIN_PEPPER_VIEW_H_ | 152 #endif // REMOTING_CLIENT_PLUGIN_PEPPER_VIEW_H_ |
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