include/cecloader.h

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