include/cecloader.h

   1 #pragma once
   2 /*
   3  * This file is part of the libCEC(R) library.
   4  *
   5  * libCEC(R) is Copyright (C) 2011-2012 Pulse-Eight Limited.  All rights reserved.
   6  * libCEC(R) is an original work, containing original code.
   7  *
   8  * libCEC(R) is a trademark of Pulse-Eight Limited.
   9  *
  10  * This program is dual-licensed; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  23  *
  24  *
  25  * Alternatively, you can license this library under a commercial license,
  26  * please contact Pulse-Eight Licensing for more information.
  27  *
  28  * For more information contact:
  29  * Pulse-Eight Licensing       <license@pulse-eight.com>
  30  *     http://www.pulse-eight.com/
  31  *     http://www.pulse-eight.net/
  32  */
  33
  34 #ifndef CECLOADER_H_
  35 #define CECLOADER_H_
  36
  37 #if defined(_WIN32) || defined(_WIN64)
  38 #include <windows.h>
  39 #include <conio.h>
  40
  41 HINSTANCE g_libCEC = NULL;
  42
  43 /*!
  44  * @deprecated Please use LibCecInit() instead
  45  */
  46 CEC::ICECAdapter *LoadLibCec(const char *strName, CEC::cec_logical_address iLogicalAddress = CEC::CECDEVICE_PLAYBACKDEVICE1, uint16_t iPhysicalAddress = CEC_DEFAULT_PHYSICAL_ADDRESS, const char *strLib = NULL)
  47 {
  48   if (!g_libCEC)
  49 #if defined(_WIN64)
  50     g_libCEC = LoadLibrary(strLib ? strLib : "libcec.x64.dll");
  51 #else
  52     g_libCEC = LoadLibrary(strLib ? strLib : "libcec.dll");
  53 #endif
  54   if (!g_libCEC)
  55     return NULL;
  56
  57   typedef void* (__cdecl*_CreateLibCec)(const char *, uint8_t, uint16_t);
  58   _CreateLibCec CreateLibCec;
  59   CreateLibCec = (_CreateLibCec) (GetProcAddress(g_libCEC, "CECCreate"));
  60   if (!CreateLibCec)
  61     return NULL;
  62   return static_cast< CEC::ICECAdapter* > (CreateLibCec(strName, (uint8_t) iLogicalAddress, iPhysicalAddress));
  63 }
  64
  65 /*!
  66  * @brief Create a new libCEC instance.
  67  * @param strDeviceName The name of the primary device to pass to other CEC devices.
  68  * @param types The list of device types to register on the bus.
  69  * @param strLib The name of and/or path to libCEC
  70  * @return An instance of libCEC or NULL when it failed to load.
  71  */
  72 CEC::ICECAdapter *LibCecInit(const char *strDeviceName, CEC::cec_device_type_list types, const char *strLib = NULL)
  73 {
  74   if (!g_libCEC)
  75 #if defined(_WIN64)
  76     g_libCEC = LoadLibrary(strLib ? strLib : "libcec.x64.dll");
  77 #else
  78     g_libCEC = LoadLibrary(strLib ? strLib : "libcec.dll");
  79 #endif
  80   if (!g_libCEC)
  81     return NULL;
  82
  83   typedef void* (__cdecl*_LibCecInit)(const char *, CEC::cec_device_type_list);
  84   _LibCecInit LibCecInit;
  85   LibCecInit = (_LibCecInit) (GetProcAddress(g_libCEC, "CECInit"));
  86   if (!LibCecInit)
  87     return NULL;
  88   return static_cast< CEC::ICECAdapter* > (LibCecInit(strDeviceName, types));
  89 }
  90
  91 /*!
  92  * @brief Destroy an instance of libCEC.
  93  * @param device The instance to destroy.
  94  */
  95 void UnloadLibCec(CEC::ICECAdapter *device)
  96 {
  97   typedef void (__cdecl*_DestroyLibCec)(void * device);
  98   _DestroyLibCec DestroyLibCec;
  99   DestroyLibCec = (_DestroyLibCec) (GetProcAddress(g_libCEC, "CECDestroy"));
 100   if (DestroyLibCec)
 101     DestroyLibCec(device);
 102
 103   FreeLibrary(g_libCEC);
 104   g_libCEC = NULL;
 105 }
 106
 107 #else
 108
 109 #include <dlfcn.h>
 110
 111 void *g_libCEC = NULL;
 112
 113 /*!
 114  * @deprecated Please use LibCecInit() instead
 115  */
 116 CEC::ICECAdapter *LoadLibCec(const char *strName, CEC::cec_logical_address iLogicalAddress = CEC::CECDEVICE_PLAYBACKDEVICE1, uint16_t iPhysicalAddress = CEC_DEFAULT_PHYSICAL_ADDRESS, const char *strLib = NULL)
 117 {
 118   if (!g_libCEC)
 119   {
 120 #if defined(__APPLE__)
 121     g_libCEC = dlopen(strLib ? strLib : "libcec.dylib", RTLD_LAZY);
 122 #else
 123     g_libCEC = dlopen(strLib ? strLib : "libcec.so", RTLD_LAZY);
 124 #endif
 125     if (!g_libCEC)
 126     {
 127 #if defined(__APPLE__)
 128       cout << "cannot find " << (strLib ? strLib : "libcec.dylib") << dlerror() << endl;
 129 #else
 130       cout << "cannot find " << (strLib ? strLib : "libcec.so") << dlerror() << endl;
 131 #endif
 132       return NULL;
 133     }
 134   }
 135
 136   typedef void* _CreateLibCec(const char *, uint8_t, uint16_t);
 137   _CreateLibCec* CreateLibCec = (_CreateLibCec*) dlsym(g_libCEC, "CECCreate");
 138   if (!CreateLibCec)
 139   {
 140     cout << "cannot find CECCreate" << endl;
 141     return NULL;
 142   }
 143
 144   return (CEC::ICECAdapter*) CreateLibCec(strName, iLogicalAddress, iPhysicalAddress);
 145 }
 146
 147 /*!
 148  * @brief Create a new libCEC instance.
 149  * @param strDeviceName The name of the primary device to pass to other CEC devices.
 150  * @param types The list of device types to register on the bus.
 151  * @param strLib The name of and/or path to libCEC
 152  * @return An instance of libCEC or NULL when it failed to load.
 153  */
 154 CEC::ICECAdapter *LibCecInit(const char *strDeviceName, CEC::cec_device_type_list types, const char *strLib = NULL)
 155 {
 156   if (!g_libCEC)
 157   {
 158 #if defined(__APPLE__)
 159     g_libCEC = dlopen(strLib ? strLib : "libcec.dylib", RTLD_LAZY);
 160 #else
 161     g_libCEC = dlopen(strLib ? strLib : "libcec.so", RTLD_LAZY);
 162 #endif
 163     if (!g_libCEC)
 164     {
 165 #if defined(__APPLE__)
 166       cout << "cannot find " << (strLib ? strLib : "libcec.dylib") << dlerror() << endl;
 167 #else
 168       cout << "cannot find " << (strLib ? strLib : "libcec.so") << dlerror() << endl;
 169 #endif
 170       return NULL;
 171     }
 172   }
 173
 174   typedef void* _LibCecInit(const char *, CEC::cec_device_type_list);
 175   _LibCecInit* LibCecInit = (_LibCecInit*) dlsym(g_libCEC, "CECInit");
 176   if (!LibCecInit)
 177   {
 178     cout << "cannot find CECInit" << endl;
 179     return NULL;
 180   }
 181
 182   return (CEC::ICECAdapter*) LibCecInit(strDeviceName, types);
 183 }
 184
 185 /*!
 186  * @brief Destroy an instance of libCEC.
 187  * @param device The instance to destroy.
 188  */
 189 void UnloadLibCec(CEC::ICECAdapter *device)
 190 {
 191   typedef void* _DestroyLibCec(CEC::ICECAdapter *);
 192   _DestroyLibCec *DestroyLibCec = (_DestroyLibCec*) dlsym(g_libCEC, "CECDestroy");
 193   if (DestroyLibCec)
 194     DestroyLibCec(device);
 195
 196   dlclose(g_libCEC);
 197 }
 198
 199 #endif
 200
 201 #endif /* CECLOADER_H_ */