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  * @brief Create a new libCEC instance.
  45  * @param strDeviceName The name of the primary device to pass to other CEC devices.
  46  * @param types The list of device types to register on the bus.
  47  * @param strLib The name of and/or path to libCEC
  48  * @return An instance of libCEC or NULL when it failed to load.
  49  */
  50 CEC::ICECAdapter *LibCecInit(const char *strDeviceName, CEC::cec_device_type_list types, const char *strLib = NULL)
  51 {
  52   if (!g_libCEC)
  53 #if defined(_WIN64)
  54     g_libCEC = LoadLibrary(strLib ? strLib : "libcec.x64.dll");
  55 #else
  56     g_libCEC = LoadLibrary(strLib ? strLib : "libcec.dll");
  57 #endif
  58   if (!g_libCEC)
  59     return NULL;
  60
  61   typedef void* (__cdecl*_LibCecInit)(const char *, CEC::cec_device_type_list);
  62   _LibCecInit LibCecInit;
  63   LibCecInit = (_LibCecInit) (GetProcAddress(g_libCEC, "CECInit"));
  64   if (!LibCecInit)
  65     return NULL;
  66   return static_cast< CEC::ICECAdapter* > (LibCecInit(strDeviceName, types));
  67 }
  68
  69 /*!
  70  * @brief Create a new libCEC instance.
  71  * @param configuration The configuration to pass to libCEC
  72  * @param strLib The name of and/or path to libCEC
  73  * @return An instance of ICECAdapter or NULL on error.
  74  */
  75 CEC::ICECAdapter *LibCecInitialise(const CEC::libcec_configuration *configuration, const char *strLib = NULL)
  76 {
  77   if (!g_libCEC)
  78 #if defined(_WIN64)
  79     g_libCEC = LoadLibrary(strLib ? strLib : "libcec.x64.dll");
  80 #else
  81     g_libCEC = LoadLibrary(strLib ? strLib : "libcec.dll");
  82 #endif
  83   if (!g_libCEC)
  84     return NULL;
  85
  86   typedef void* (__cdecl*_LibCecInitialise)(const CEC::libcec_configuration *);
  87   _LibCecInitialise LibCecInitialise;
  88   LibCecInitialise = (_LibCecInitialise) (GetProcAddress(g_libCEC, "CECInitialise"));
  89   if (!LibCecInitialise)
  90   {
  91     cout << "cannot find CECInitialise" << endl;
  92     return NULL;
  93   }
  94
  95   return static_cast< CEC::ICECAdapter* > (LibCecInitialise(configuration));
  96 }
  97
  98 /*!
  99  * @brief Destroy an instance of libCEC.
 100  * @param device The instance to destroy.
 101  */
 102 void UnloadLibCec(CEC::ICECAdapter *device)
 103 {
 104   typedef void (__cdecl*_DestroyLibCec)(void * device);
 105   _DestroyLibCec DestroyLibCec;
 106   DestroyLibCec = (_DestroyLibCec) (GetProcAddress(g_libCEC, "CECDestroy"));
 107   if (DestroyLibCec)
 108     DestroyLibCec(device);
 109
 110   FreeLibrary(g_libCEC);
 111   g_libCEC = NULL;
 112 }
 113
 114 #else
 115
 116 #include <dlfcn.h>
 117
 118 void *g_libCEC = NULL;
 119
 120 /*!
 121  * @brief Create a new libCEC instance.
 122  * @param strDeviceName The name of the primary device to pass to other CEC devices.
 123  * @param types The list of device types to register on the bus.
 124  * @param strLib The name of and/or path to libCEC
 125  * @return An instance of libCEC or NULL when it failed to load.
 126  */
 127 CEC::ICECAdapter *LibCecInit(const char *strDeviceName, CEC::cec_device_type_list types, const char *strLib = NULL)
 128 {
 129   if (!g_libCEC)
 130   {
 131 #if defined(__APPLE__)
 132     g_libCEC = dlopen(strLib ? strLib : "libcec.dylib", RTLD_LAZY);
 133 #else
 134     g_libCEC = dlopen(strLib ? strLib : "libcec.so", RTLD_LAZY);
 135 #endif
 136     if (!g_libCEC)
 137     {
 138 #if defined(__APPLE__)
 139       cout << "cannot find " << (strLib ? strLib : "libcec.dylib") << dlerror() << endl;
 140 #else
 141       cout << "cannot find " << (strLib ? strLib : "libcec.so") << dlerror() << endl;
 142 #endif
 143       return NULL;
 144     }
 145   }
 146
 147   typedef void* _LibCecInit(const char *, CEC::cec_device_type_list);
 148   _LibCecInit* LibCecInit = (_LibCecInit*) dlsym(g_libCEC, "CECInit");
 149   if (!LibCecInit)
 150   {
 151     cout << "cannot find CECInit" << endl;
 152     return NULL;
 153   }
 154
 155   return (CEC::ICECAdapter*) LibCecInit(strDeviceName, types);
 156 }
 157
 158 /*!
 159  * @brief Create a new libCEC instance.
 160  * @param configuration The configuration to pass to libCEC
 161  * @return An instance of ICECAdapter or NULL on error.
 162  */
 163 CEC::ICECAdapter *LibCecInitialise(const CEC::CecAdapterConfiguration &configuration)
 164 {
 165   if (!g_libCEC)
 166   {
 167 #if defined(__APPLE__)
 168     g_libCEC = dlopen(strLib ? strLib : "libcec.dylib", RTLD_LAZY);
 169 #else
 170     g_libCEC = dlopen(strLib ? strLib : "libcec.so", RTLD_LAZY);
 171 #endif
 172     if (!g_libCEC)
 173     {
 174 #if defined(__APPLE__)
 175       cout << "cannot find " << (strLib ? strLib : "libcec.dylib") << dlerror() << endl;
 176 #else
 177       cout << "cannot find " << (strLib ? strLib : "libcec.so") << dlerror() << endl;
 178 #endif
 179       return NULL;
 180     }
 181   }
 182
 183   typedef void* _LibCecInitialise(const CEC::CecAdapterConfiguration &);
 184   _LibCecInitialise* LibCecInitialise = (_LibCecInitialise*) dlsym(g_libCEC, "CECInitialise");
 185   if (!LibCecInitialise)
 186   {
 187     cout << "cannot find CECInitialise" << endl;
 188     return NULL;
 189   }
 190
 191   return (CEC::ICECAdapter*) LibCecInitialise(configuration);
 192 }
 193
 194 /*!
 195  * @brief Destroy an instance of libCEC.
 196  * @param device The instance to destroy.
 197  */
 198 void UnloadLibCec(CEC::ICECAdapter *device)
 199 {
 200   typedef void* _DestroyLibCec(CEC::ICECAdapter *);
 201   _DestroyLibCec *DestroyLibCec = (_DestroyLibCec*) dlsym(g_libCEC, "CECDestroy");
 202   if (DestroyLibCec)
 203     DestroyLibCec(device);
 204
 205   dlclose(g_libCEC);
 206 }
 207
 208 #endif
 209
 210 #endif /* CECLOADER_H_ */