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(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)(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 /*!
 115  * @brief Start the bootloader on the first device that was detected.
 116  * @param strLib The name of and/or path to libCEC
 117  * @return True when the command was sent, false otherwise.
 118  */
 119 bool LibCecBootloader(const char *strLib = NULL)
 120 {
 121   if (!g_libCEC)
 122 #if defined(_WIN64)
 123     g_libCEC = LoadLibrary(strLib ? strLib : "libcec.x64.dll");
 124 #else
 125     g_libCEC = LoadLibrary(strLib ? strLib : "libcec.dll");
 126 #endif
 127   if (!g_libCEC)
 128     return NULL;
 129
 130   typedef bool (__cdecl*_LibCecBootloader)(void);
 131   _LibCecBootloader LibCecBootloader;
 132   LibCecBootloader = (_LibCecBootloader) (GetProcAddress(g_libCEC, "CECStartBootloader"));
 133   if (!LibCecBootloader)
 134     return false;
 135
 136   bool bReturn = LibCecBootloader();
 137   UnloadLibCec(static_cast< CEC::ICECAdapter* > g_libCEC);
 138   return bReturn;
 139 }
 140
 141 #else
 142
 143 #include <dlfcn.h>
 144
 145 void *g_libCEC = NULL;
 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 Create a new libCEC instance.
 187  * @param configuration The configuration to pass to libCEC
 188  * @param strLib The name of and/or path to libCEC
 189  * @return An instance of ICECAdapter or NULL on error.
 190  */
 191 CEC::ICECAdapter *LibCecInitialise(CEC::libcec_configuration *configuration, const char *strLib = NULL)
 192 {
 193   if (!g_libCEC)
 194   {
 195 #if defined(__APPLE__)
 196     g_libCEC = dlopen(strLib ? strLib : "libcec.dylib", RTLD_LAZY);
 197 #else
 198     g_libCEC = dlopen(strLib ? strLib : "libcec.so", RTLD_LAZY);
 199 #endif
 200     if (!g_libCEC)
 201     {
 202 #if defined(__APPLE__)
 203       cout << "cannot find " << (strLib ? strLib : "libcec.dylib") << dlerror() << endl;
 204 #else
 205       cout << "cannot find " << (strLib ? strLib : "libcec.so") << dlerror() << endl;
 206 #endif
 207       return NULL;
 208     }
 209   }
 210
 211   typedef void* _LibCecInitialise(CEC::libcec_configuration *);
 212   _LibCecInitialise* LibCecInitialise = (_LibCecInitialise*) dlsym(g_libCEC, "CECInitialise");
 213   if (!LibCecInitialise)
 214   {
 215     cout << "cannot find CECInitialise" << endl;
 216     return NULL;
 217   }
 218
 219   return (CEC::ICECAdapter*) LibCecInitialise(configuration);
 220 }
 221
 222 /*!
 223  * @brief Destroy an instance of libCEC.
 224  * @param device The instance to destroy.
 225  */
 226 void UnloadLibCec(CEC::ICECAdapter *device)
 227 {
 228   typedef void* _DestroyLibCec(CEC::ICECAdapter *);
 229   _DestroyLibCec *DestroyLibCec = (_DestroyLibCec*) dlsym(g_libCEC, "CECDestroy");
 230   if (DestroyLibCec)
 231     DestroyLibCec(device);
 232
 233   dlclose(g_libCEC);
 234 }
 235
 236 /*!
 237  * @brief Start the bootloader on the first device that was detected.
 238  * @param strLib The name of and/or path to libCEC
 239  * @return True when the command was sent, false otherwise.
 240  */
 241 bool LibCecBootloader(const char *strLib = NULL)
 242 {
 243   if (!g_libCEC)
 244   {
 245 #if defined(__APPLE__)
 246     g_libCEC = dlopen(strLib ? strLib : "libcec.dylib", RTLD_LAZY);
 247 #else
 248     g_libCEC = dlopen(strLib ? strLib : "libcec.so", RTLD_LAZY);
 249 #endif
 250     if (!g_libCEC)
 251     {
 252 #if defined(__APPLE__)
 253       cout << "cannot find " << (strLib ? strLib : "libcec.dylib") << dlerror() << endl;
 254 #else
 255       cout << "cannot find " << (strLib ? strLib : "libcec.so") << dlerror() << endl;
 256 #endif
 257       return NULL;
 258     }
 259   }
 260
 261   typedef bool _LibCecBootloader(void);
 262   _LibCecBootloader* LibCecBootloader = (_LibCecBootloader*) dlsym(g_libCEC, "CECStartBootloader");
 263   if (!LibCecBootloader)
 264   {
 265     cout << "cannot find CECStartBootloader" << endl;
 266     return NULL;
 267   }
 268
 269   bool bReturn = LibCecBootloader();
 270   UnloadLibCec((CEC::ICECAdapter*)g_libCEC);
 271   return bReturn;
 272 }
 273
 274 #endif
 275
 276 #endif /* CECLOADER_H_ */