1 /*
2 * Copyright (c) 2019, Intel Corporation
3 *
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5 * copy of this software and associated documentation files (the "Software"),
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8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included
12 * in all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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21 */
22 //!
23 //! \file     decode_unique_id.h
24 //! \brief    Defines the utils interface for decode unique id.
25 //! \details  Defines the utils interface to declare the unique decode id
26 //!           among decoders.
27 //!
28 
29 #ifndef __DECODE_UNIQUE_ID_H__
30 #define __DECODE_UNIQUE_ID_H__
31 
32 #include "decode_utils.h"
33 #include "media_class_trace.h"
34 #include <stdint.h>
35 
36 namespace decode {
37 
38 class DecodeUniqueId
39 {
40 protected:
GetGlobalUniqueId()41     static uint32_t GetGlobalUniqueId() { return m_decodeUniqueId; }
IncGlobalUniqueId()42     static void     IncGlobalUniqueId()
43     {
44         AutoLock autoLock(m_mutex);
45         m_decodeUniqueId++;
46     }
47 
48 private:
49     static uint32_t m_decodeUniqueId;
50     static Mutex    m_mutex;
51 
52 MEDIA_CLASS_DEFINE_END(decode__DecodeUniqueId)
53 };
54 
55 #define DeclareDecodeUniqueId(type, name) \
56     class name##type##UniqueId : public DecodeUniqueId \
57     { \
58     public: \
59         name##type##UniqueId() \
60         { \
61             m_##name##type = GetGlobalUniqueId(); \
62             IncGlobalUniqueId(); \
63         } \
64         inline uint32_t GetUniqueId() \
65         { \
66             return m_##name##type; \
67         } \
68     private: \
69         uint32_t m_##name##type; \
70     }; \
71     class name##type##UniqueId name##type##UniqueId_instance_;
72 
73 #define GetDecodeUniqueId(scope, type, name) \
74     ((scope)->name##type##UniqueId_instance_.GetUniqueId())
75 
76 }
77 
78 #endif
79