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 Destroy an instance of libCEC.
  71  * @param device The instance to destroy.
  72  */
  73 void UnloadLibCec(CEC::ICECAdapter *device)
  74 {
  75   typedef void (__cdecl*_DestroyLibCec)(void * device);
  76   _DestroyLibCec DestroyLibCec;
  77   DestroyLibCec = (_DestroyLibCec) (GetProcAddress(g_libCEC, "CECDestroy"));
  78   if (DestroyLibCec)
  79     DestroyLibCec(device);
  80
  81   FreeLibrary(g_libCEC);
  82   g_libCEC = NULL;
  83 }
  84
  85 #else
  86
  87 #include <dlfcn.h>
  88
  89 void *g_libCEC = NULL;
  90
  91 /*!
  92  * @deprecated Please use LibCecInit() instead
  93  */
  94 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)
  95 {
  96   if (!g_libCEC)
  97   {
  98 #if defined(__APPLE__)
  99     g_libCEC = dlopen(strLib ? strLib : "libcec.dylib", RTLD_LAZY);
 100 #else
 101     g_libCEC = dlopen(strLib ? strLib : "libcec.so", RTLD_LAZY);
 102 #endif
 103     if (!g_libCEC)
 104     {
 105 #if defined(__APPLE__)
 106       cout << "cannot find " << (strLib ? strLib : "libcec.dylib") << dlerror() << endl;
 107 #else
 108       cout << "cannot find " << (strLib ? strLib : "libcec.so") << dlerror() << endl;
 109 #endif
 110       return NULL;
 111     }
 112   }
 113
 114   typedef void* _CreateLibCec(const char *, uint8_t, uint16_t);
 115   _CreateLibCec* CreateLibCec = (_CreateLibCec*) dlsym(g_libCEC, "CECCreate");
 116   if (!CreateLibCec)
 117   {
 118     cout << "cannot find CECCreate" << endl;
 119     return NULL;
 120   }
 121
 122   return (CEC::ICECAdapter*) CreateLibCec(strName, iLogicalAddress, iPhysicalAddress);
 123 }
 124
 125 /*!
 126  * @brief Create a new libCEC instance.
 127  * @param strDeviceName The name of the primary device to pass to other CEC devices.
 128  * @param types The list of device types to register on the bus.
 129  * @param strLib The name of and/or path to libCEC
 130  * @return An instance of libCEC or NULL when it failed to load.
 131  */
 132 CEC::ICECAdapter *LibCecInit(const char *strDeviceName, CEC::cec_device_type_list types, const char *strLib = NULL)
 133 {
 134   if (!g_libCEC)
 135   {
 136 #if defined(__APPLE__)
 137     g_libCEC = dlopen(strLib ? strLib : "libcec.dylib", RTLD_LAZY);
 138 #else
 139     g_libCEC = dlopen(strLib ? strLib : "libcec.so", RTLD_LAZY);
 140 #endif
 141     if (!g_libCEC)
 142     {
 143 #if defined(__APPLE__)
 144       cout << "cannot find " << (strLib ? strLib : "libcec.dylib") << dlerror() << endl;
 145 #else
 146       cout << "cannot find " << (strLib ? strLib : "libcec.so") << dlerror() << endl;
 147 #endif
 148       return NULL;
 149     }
 150   }
 151
 152   typedef void* _LibCecInit(const char *, CEC::cec_device_type_list);
 153   _LibCecInit* LibCecInit = (_LibCecInit*) dlsym(g_libCEC, "CECInit");
 154   if (!LibCecInit)
 155   {
 156     cout << "cannot find CECInit" << endl;
 157     return NULL;
 158   }
 159
 160   return (CEC::ICECAdapter*) LibCecInit(strDeviceName, types);
 161 }
 162
 163 /*!
 164  * @brief Destroy an instance of libCEC.
 165  * @param device The instance to destroy.
 166  */
 167 void UnloadLibCec(CEC::ICECAdapter *device)
 168 {
 169   typedef void* _DestroyLibCec(CEC::ICECAdapter *);
 170   _DestroyLibCec *DestroyLibCec = (_DestroyLibCec*) dlsym(g_libCEC, "CECDestroy");
 171   if (DestroyLibCec)
 172     DestroyLibCec(device);
 173
 174   dlclose(g_libCEC);
 175 }
 176
 177 #endif
 178
 179 #endif /* CECLOADER_H_ */