1 /*
2 * Copyright (c) 2009-2017, Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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
17 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 */
22 //!
23 //! \file cplib_utils.h
24 //! \brief Utils to interact with CPLib
25 //!
26 #ifndef __CPLIB_UTILS_H__
27 #define __CPLIB_UTILS_H__
28
29 #include "mos_util_debug.h"
30
31 #include <dlfcn.h>
32 #include <unordered_map>
33 #include <mutex>
34
35 #define REQUIRED_CPLIB_MAJOR_VERSION 1
36
37 #define CPLIB_NORMALMESSAGE(_message, ...) \
38 MOS_NORMALMESSAGE(MOS_COMPONENT_CPLIB, MOS_CP_SUBCOMP_CPLIB, _message, ##__VA_ARGS__)
39
40 #define CPLIB_ASSERTMESSAGE(_message, ...) \
41 MOS_ASSERTMESSAGE(MOS_COMPONENT_CPLIB, MOS_CP_SUBCOMP_CPLIB, _message, ##__VA_ARGS__)
42
43 typedef struct VADriverContext* VADriverContextP;
44
45 class CPLibUtils
46 {
47 public:
48 CPLibUtils() = delete;
49 ~CPLibUtils() = delete;
50 CPLibUtils(const CPLibUtils& ) = delete;
51 CPLibUtils & operator=(const CPLibUtils& other) = delete;
52
53 //!
54 //! \brief Try load CPLIB
55 //!
56 static bool LoadCPLib(VADriverContextP ctx);
57
58 //!
59 //! \brief Unload CPLIB if it is loaded
60 //!
61 static void UnloadCPLib(VADriverContextP ctx);
62
63 //!
64 //! \brief Invoke CPLIB function
65 //! \param [out] _ret
66 //! To store the return of involved function
67 //!
68 //! \param [in] *symbol
69 //! The symbol want to involve in CPLIB
70 //!
71 //! \param [in] args
72 //! All the args needed for the function you involved in CPLIB
73 //!
74 template<typename _FuncType, typename _RetType, typename... Args>
75 static void InvokeCpFunc(_RetType& _ret, const char * symbol, Args... args);
76
77 //!
78 //! \brief Invoke CPLIB function
79 //!
80 //! \param [in] *symbol
81 //! The symbol want to involve in CPLIB
82 //!
83 //! \param [in] args
84 //! All the args needed for the function you involved in CPLIB
85 //!
86 template<typename _FuncType, typename... Args>
87 static void InvokeCpFunc(const char * symbol, Args... args);
88
89 static const char* CPLIB_PATH;
90 static const char* FUNC_GET_CPLIB_MAJOR_VERSION;
91 static const char* FUNC_INIT_CPLIB;
92 static const char* FUNC_RELEASE_CPLIB;
93 static const char* FUNC_CREATE_DDICP;
94 static const char* FUNC_DELETE_DDICP;
95 static const char* FUNC_CREATE_MHWCP;
96 static const char* FUNC_DELETE_MHWCP;
97 static const char* FUNC_CREATE_MOSCP;
98 static const char* FUNC_DELETE_MOSCP;
99 static const char* FUNC_CREATE_MEDIALIBVACAPSCP;
100 static const char* FUNC_DELETE_MEDIALIBVACAPSCP;
101 static const char* FUNC_CREATE_SECUREDECODE;
102 static const char* FUNC_DELETE_SECUREDECODE;
103 static const char* FUNC_CREATE_DECODECP;
104 static const char* FUNC_DELETE_DECODECP;
105 static const char* FUNC_CREATE_CPSTREAMOUT;
106 static const char* FUNC_DELETE_CPSTREAMOUT;
107
108 static std::unordered_map<const char*, void*> m_symbols;
109 static std::mutex m_referenceMutex;
110 static int m_referenceCount;
111
112 private:
113 static void* m_phandle;
114 };
115
116 template<typename _FuncType, typename _RetType, typename... Args>
InvokeCpFunc(_RetType & _ret,const char * symbol,Args...args)117 void CPLibUtils::InvokeCpFunc(_RetType& _ret, const char* symbol, Args... args)
118 {
119 if (m_symbols.end() != m_symbols.find(symbol))
120 {
121 _FuncType func = reinterpret_cast<_FuncType>(m_symbols[symbol]);
122 if (nullptr != func)
123 {
124 _ret = func(args...);
125 return;
126 }
127 }
128
129 CPLIB_NORMALMESSAGE("Symbol: %s not found in CPLIB", symbol);
130 }
131
132 template<typename _FuncType, typename... Args>
InvokeCpFunc(const char * symbol,Args...args)133 void CPLibUtils::InvokeCpFunc(const char* symbol, Args... args)
134 {
135 if (m_symbols.end() != m_symbols.find(symbol))
136 {
137 _FuncType func = reinterpret_cast<_FuncType>(m_symbols[symbol]);
138 if (nullptr != func)
139 {
140 func(args...);
141 return;
142 }
143 }
144
145 CPLIB_NORMALMESSAGE("Symbol: %s not found in CPLIB", symbol);
146 }
147
148 #endif
149