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
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
|
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// This class is an implementation of the ChromotingView for Pepper. It is
// callable only on the Pepper thread.
#ifndef REMOTING_CLIENT_PLUGIN_PEPPER_VIEW_H_
#define REMOTING_CLIENT_PLUGIN_PEPPER_VIEW_H_
#include <list>
#include "base/memory/weak_ptr.h"
#include "ppapi/cpp/graphics_2d.h"
#include "ppapi/cpp/point.h"
#include "remoting/client/chromoting_view.h"
#include "remoting/client/frame_consumer.h"
namespace remoting {
class ChromotingInstance;
class ClientContext;
class FrameProducer;
class PepperView : public ChromotingView,
public FrameConsumer,
public base::SupportsWeakPtr<PepperView> {
public:
// Constructs a PepperView for the |instance|. The |instance|, |context|
// and |producer| must outlive this class.
PepperView(ChromotingInstance* instance,
ClientContext* context,
FrameProducer* producer);
virtual ~PepperView();
// ChromotingView implementation.
virtual bool Initialize() OVERRIDE;
virtual void TearDown() OVERRIDE;
virtual void SetConnectionState(
protocol::ConnectionToHost::State state,
protocol::ErrorCode error) OVERRIDE;
virtual protocol::ClipboardStub* GetClipboardStub() OVERRIDE;
// FrameConsumer implementation.
virtual void ApplyBuffer(const SkISize& view_size,
const SkIRect& clip_area,
pp::ImageData* buffer,
const SkRegion& region) OVERRIDE;
virtual void ReturnBuffer(pp::ImageData* buffer) OVERRIDE;
virtual void SetSourceSize(const SkISize& source_size) OVERRIDE;
// Sets the display size and clipping area of this view.
void SetView(const SkISize& view_size, const SkIRect& clip_area);
// Return the client view and original host dimensions.
const SkISize& get_view_size() const {
return view_size_;
}
const SkISize& get_screen_size() const {
return source_size_;
}
private:
// This routine allocates an image buffer.
pp::ImageData* AllocateBuffer();
// This routine frees an image buffer allocated by AllocateBuffer().
void FreeBuffer(pp::ImageData* buffer);
// This routine makes sure that enough image buffers are in flight to keep
// the decoding pipeline busy.
void InitiateDrawing();
// This routine applies the given image buffer to the screen taking into
// account |clip_area| of the buffer and |region| describing valid parts
// of the buffer.
void FlushBuffer(const SkIRect& clip_area,
pp::ImageData* buffer,
const SkRegion& region);
// This is a completion callback for FlushGraphics().
void OnFlushDone(base::Time paint_start, pp::ImageData* buffer, int result);
// Reference to the creating plugin instance. Needed for interacting with
// pepper. Marking explicitly as const since it must be initialized at
// object creation, and never change.
ChromotingInstance* const instance_;
// Context should be constant for the lifetime of the plugin.
ClientContext* const context_;
pp::Graphics2D graphics2d_;
FrameProducer* producer_;
// List of allocated image buffers.
std::list<pp::ImageData*> buffers_;
pp::ImageData* merge_buffer_;
SkIRect merge_clip_area_;
SkRegion merge_region_;
// The size of the plugin element.
SkISize view_size_;
// The current clip area rectangle.
SkIRect clip_area_;
// The size of the host screen.
SkISize source_size_;
// True if there is already a Flush() pending on the Graphics2D context.
bool flush_pending_;
// True after Initialize() has been called, until TearDown().
bool is_initialized_;
// True after the first call to ApplyBuffer().
bool frame_received_;
DISALLOW_COPY_AND_ASSIGN(PepperView);
};
} // namespace remoting
#endif // REMOTING_CLIENT_PLUGIN_PEPPER_VIEW_H_
|
