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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 |
11 #include <list> | 11 #include <list> |
12 | 12 |
13 #include "base/compiler_specific.h" | 13 #include "base/compiler_specific.h" |
14 #include "ppapi/cpp/graphics_2d.h" | 14 #include "ppapi/cpp/graphics_2d.h" |
15 #include "ppapi/cpp/view.h" | 15 #include "ppapi/cpp/view.h" |
16 #include "ppapi/cpp/point.h" | 16 #include "ppapi/cpp/point.h" |
17 #include "ppapi/utility/completion_callback_factory.h" | 17 #include "ppapi/utility/completion_callback_factory.h" |
18 #include "remoting/client/frame_consumer.h" | 18 #include "remoting/client/frame_consumer.h" |
| 19 #include "third_party/webrtc/modules/desktop_capture/desktop_geometry.h" |
| 20 #include "third_party/webrtc/modules/desktop_capture/desktop_region.h" |
19 | 21 |
20 namespace base { | 22 namespace base { |
21 class Time; | 23 class Time; |
22 } // namespace base | 24 } // namespace base |
23 | 25 |
24 namespace webrtc { | 26 namespace webrtc { |
25 class DesktopFrame; | 27 class DesktopFrame; |
26 } // namespace webrtc | 28 } // namespace webrtc |
27 | 29 |
28 namespace remoting { | 30 namespace remoting { |
29 | 31 |
30 class ChromotingInstance; | 32 class ChromotingInstance; |
31 class ClientContext; | 33 class ClientContext; |
32 class FrameProducer; | 34 class FrameProducer; |
33 | 35 |
34 class PepperView : public FrameConsumer { | 36 class PepperView : public FrameConsumer { |
35 public: | 37 public: |
36 // Constructs a PepperView for the |instance|. The |instance|, |context| | 38 // Constructs a PepperView for the |instance|. The |instance|, |context| |
37 // and |producer| must outlive this class. | 39 // and |producer| must outlive this class. |
38 PepperView(ChromotingInstance* instance, | 40 PepperView(ChromotingInstance* instance, |
39 ClientContext* context, | 41 ClientContext* context, |
40 FrameProducer* producer); | 42 FrameProducer* producer); |
41 virtual ~PepperView(); | 43 virtual ~PepperView(); |
42 | 44 |
43 // FrameConsumer implementation. | 45 // FrameConsumer implementation. |
44 virtual void ApplyBuffer(const SkISize& view_size, | 46 virtual void ApplyBuffer(const webrtc::DesktopSize& view_size, |
45 const SkIRect& clip_area, | 47 const webrtc::DesktopRect& clip_area, |
46 webrtc::DesktopFrame* buffer, | 48 webrtc::DesktopFrame* buffer, |
47 const SkRegion& region) OVERRIDE; | 49 const webrtc::DesktopRegion& region) OVERRIDE; |
48 virtual void ReturnBuffer(webrtc::DesktopFrame* buffer) OVERRIDE; | 50 virtual void ReturnBuffer(webrtc::DesktopFrame* buffer) OVERRIDE; |
49 virtual void SetSourceSize(const SkISize& source_size, | 51 virtual void SetSourceSize(const webrtc::DesktopSize& source_size, |
50 const SkIPoint& dpi) OVERRIDE; | 52 const webrtc::DesktopVector& dpi) OVERRIDE; |
51 | 53 |
52 // Updates the PepperView's size & clipping area, taking into account the | 54 // Updates the PepperView's size & clipping area, taking into account the |
53 // DIP-to-device scale factor. | 55 // DIP-to-device scale factor. |
54 void SetView(const pp::View& view); | 56 void SetView(const pp::View& view); |
55 | 57 |
56 // Returns the dimensions of the most recently displayed frame, in pixels. | 58 // Returns the dimensions of the most recently displayed frame, in pixels. |
57 const SkISize& get_source_size() const { | 59 const webrtc::DesktopSize& get_source_size() const { |
58 return source_size_; | 60 return source_size_; |
59 } | 61 } |
60 | 62 |
61 // Return the dimensions of the view in Density Independent Pixels (DIPs). | 63 // Return the dimensions of the view in Density Independent Pixels (DIPs). |
62 // Note that there may be multiple device pixels per DIP. | 64 // Note that there may be multiple device pixels per DIP. |
63 const SkISize& get_view_size_dips() const { | 65 const webrtc::DesktopSize& get_view_size_dips() const { |
64 return dips_size_; | 66 return dips_size_; |
65 } | 67 } |
66 | 68 |
67 private: | 69 private: |
68 // Allocates a new frame buffer to supply to the FrameProducer to render into. | 70 // 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. | 71 // Returns NULL if the maximum number of buffers has already been allocated. |
70 webrtc::DesktopFrame* AllocateBuffer(); | 72 webrtc::DesktopFrame* AllocateBuffer(); |
71 | 73 |
72 // Frees a frame buffer previously allocated by AllocateBuffer. | 74 // Frees a frame buffer previously allocated by AllocateBuffer. |
73 void FreeBuffer(webrtc::DesktopFrame* buffer); | 75 void FreeBuffer(webrtc::DesktopFrame* buffer); |
74 | 76 |
75 // Allocates buffers and passes them to the FrameProducer to render into until | 77 // Allocates buffers and passes them to the FrameProducer to render into until |
76 // the maximum number of buffers are in-flight. | 78 // the maximum number of buffers are in-flight. |
77 void InitiateDrawing(); | 79 void InitiateDrawing(); |
78 | 80 |
79 // Renders the parts of |buffer| identified by |region| to the view. If the | 81 // 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 | 82 // clip area of the view has changed since the buffer was generated then |
81 // FrameProducer is supplied the missed parts of |region|. The FrameProducer | 83 // FrameProducer is supplied the missed parts of |region|. The FrameProducer |
82 // will be supplied a new buffer when FlushBuffer() completes. | 84 // will be supplied a new buffer when FlushBuffer() completes. |
83 void FlushBuffer(const SkIRect& clip_area, | 85 void FlushBuffer(const webrtc::DesktopRect& clip_area, |
84 webrtc::DesktopFrame* buffer, | 86 webrtc::DesktopFrame* buffer, |
85 const SkRegion& region); | 87 const webrtc::DesktopRegion& region); |
86 | 88 |
87 // Handles completion of FlushBuffer(), triggering a new buffer to be | 89 // Handles completion of FlushBuffer(), triggering a new buffer to be |
88 // returned to FrameProducer for rendering. | 90 // returned to FrameProducer for rendering. |
89 void OnFlushDone(int result, | 91 void OnFlushDone(int result, |
90 const base::Time& paint_start, | 92 const base::Time& paint_start, |
91 webrtc::DesktopFrame* buffer); | 93 webrtc::DesktopFrame* buffer); |
92 | 94 |
93 // Reference to the creating plugin instance. Needed for interacting with | 95 // Reference to the creating plugin instance. Needed for interacting with |
94 // pepper. Marking explicitly as const since it must be initialized at | 96 // pepper. Marking explicitly as const since it must be initialized at |
95 // object creation, and never change. | 97 // object creation, and never change. |
96 ChromotingInstance* const instance_; | 98 ChromotingInstance* const instance_; |
97 | 99 |
98 // Context should be constant for the lifetime of the plugin. | 100 // Context should be constant for the lifetime of the plugin. |
99 ClientContext* const context_; | 101 ClientContext* const context_; |
100 | 102 |
101 pp::Graphics2D graphics2d_; | 103 pp::Graphics2D graphics2d_; |
102 | 104 |
103 FrameProducer* producer_; | 105 FrameProducer* producer_; |
104 | 106 |
105 // List of allocated image buffers. | 107 // List of allocated image buffers. |
106 std::list<webrtc::DesktopFrame*> buffers_; | 108 std::list<webrtc::DesktopFrame*> buffers_; |
107 | 109 |
108 // Queued buffer to paint, with clip area and dirty region in device pixels. | 110 // Queued buffer to paint, with clip area and dirty region in device pixels. |
109 webrtc::DesktopFrame* merge_buffer_; | 111 webrtc::DesktopFrame* merge_buffer_; |
110 SkIRect merge_clip_area_; | 112 webrtc::DesktopRect merge_clip_area_; |
111 SkRegion merge_region_; | 113 webrtc::DesktopRegion merge_region_; |
112 | 114 |
113 // View size in Density Independent Pixels (DIPs). | 115 // View size in Density Independent Pixels (DIPs). |
114 SkISize dips_size_; | 116 webrtc::DesktopSize dips_size_; |
115 | 117 |
116 // Scale factor from DIPs to device pixels. | 118 // Scale factor from DIPs to device pixels. |
117 float dips_to_device_scale_; | 119 float dips_to_device_scale_; |
118 | 120 |
119 // View size in output pixels. This is the size at which FrameProducer must | 121 // 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 | 122 // 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. | 123 // the size in device pixels when scaling is in effect, to reduce artefacts. |
122 SkISize view_size_; | 124 webrtc::DesktopSize view_size_; |
123 | 125 |
124 // Scale factor from output pixels to device pixels. | 126 // Scale factor from output pixels to device pixels. |
125 float dips_to_view_scale_; | 127 float dips_to_view_scale_; |
126 | 128 |
127 // Visible area of the view, in output pixels. | 129 // Visible area of the view, in output pixels. |
128 SkIRect clip_area_; | 130 webrtc::DesktopRect clip_area_; |
129 | 131 |
130 // Size of the most recent source frame in pixels. | 132 // Size of the most recent source frame in pixels. |
131 SkISize source_size_; | 133 webrtc::DesktopSize source_size_; |
132 | 134 |
133 // Resolution of the most recent source frame dots-per-inch. | 135 // Resolution of the most recent source frame dots-per-inch. |
134 SkIPoint source_dpi_; | 136 webrtc::DesktopVector source_dpi_; |
135 | 137 |
136 // True if there is already a Flush() pending on the Graphics2D context. | 138 // True if there is already a Flush() pending on the Graphics2D context. |
137 bool flush_pending_; | 139 bool flush_pending_; |
138 | 140 |
139 // True after Initialize() has been called, until TearDown(). | 141 // True after Initialize() has been called, until TearDown(). |
140 bool is_initialized_; | 142 bool is_initialized_; |
141 | 143 |
142 // True after the first call to ApplyBuffer(). | 144 // True after the first call to ApplyBuffer(). |
143 bool frame_received_; | 145 bool frame_received_; |
144 | 146 |
145 pp::CompletionCallbackFactory<PepperView> callback_factory_; | 147 pp::CompletionCallbackFactory<PepperView> callback_factory_; |
146 | 148 |
147 DISALLOW_COPY_AND_ASSIGN(PepperView); | 149 DISALLOW_COPY_AND_ASSIGN(PepperView); |
148 }; | 150 }; |
149 | 151 |
150 } // namespace remoting | 152 } // namespace remoting |
151 | 153 |
152 #endif // REMOTING_CLIENT_PLUGIN_PEPPER_VIEW_H_ | 154 #endif // REMOTING_CLIENT_PLUGIN_PEPPER_VIEW_H_ |
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