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
|
/*****************************************************************************
* *
* OpenNI 2.x Alpha *
* Copyright (C) 2012 PrimeSense Ltd. *
* *
* This file is part of OpenNI. *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); *
* you may not use this file except in compliance with the License. *
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
* *
*****************************************************************************/
#ifndef __XN_MULTI_FRAME_BUFFER_H__
#define __XN_MULTI_FRAME_BUFFER_H__
//---------------------------------------------------------------------------
// Includes
//---------------------------------------------------------------------------
#include <XnPlatform.h>
#include <XnEvent.h>
#include <Core/XnBuffer.h>
#include <Driver/OniDriverAPI.h>
//---------------------------------------------------------------------------
// Types
//---------------------------------------------------------------------------
class XnFrameBufferManager
{
public:
typedef void (XN_CALLBACK_TYPE* NewFrameCallback)(OniFrame* pFrame, void* pCookie);
XnFrameBufferManager();
~XnFrameBufferManager();
void SetNewFrameCallback(NewFrameCallback func, void* pCookie);
XnStatus Init();
void Free();
XnStatus Start(oni::driver::StreamServices& services);
void Stop();
inline XnBuffer* GetWriteBuffer()
{
// NOTE: no need to lock buffer, as we assume the same thread is the one that is responsible
// for marking working buffer as stable.
return &m_writeBuffer;
}
inline OniFrame* GetWriteFrame()
{
return m_pWorkingBuffer;
}
void MarkWriteBufferAsStable(XnUInt32* pnFrameID);
inline XnUInt32 GetLastFrameID() const { return m_nStableFrameID; }
private:
XN_DISABLE_COPY_AND_ASSIGN(XnFrameBufferManager);
oni::driver::StreamServices* m_pServices;
OniFrame* m_pWorkingBuffer;
XnUInt32 m_nStableFrameID;
NewFrameCallback m_newFrameCallback;
void* m_newFrameCallbackCookie;
XN_CRITICAL_SECTION_HANDLE m_hLock;
XnBuffer m_writeBuffer;
};
#endif //__XN_MULTI_FRAME_BUFFER_H__
|
