Dogcows Code - chaz/yoink/blob - src/Moof/Backend.cc

   1
   2 /*]  Copyright (c) 2009-2010, Charles McGarvey  [**************************
   3 **]  All rights reserved.
   4 *
   5 * vi:ts=4 sw=4 tw=75
   6 *
   7 * Distributable under the terms and conditions of the 2-clause BSD license;
   8 * see the file COPYING for a complete text of the license.
   9 *
  10 **************************************************************************/
  11
  12 #include <SDL/SDL.h>
  13 #include "fastevents.h"
  14
  15 #include "Backend.hh"
  16 #include "Error.hh"
  17 #include "Log.hh"
  18
  19
  20 namespace Mf {
  21
  22
  23 struct Impl
  24 {
  25         static Error    error;
  26         static int              retainCount;
  27 };
  28
  29 Error   Impl::error(Error::UNINITIALIZED);
  30 int             Impl::retainCount = 0;
  31
  32
  33 Backend::Backend()
  34 {
  35         if (Impl::retainCount++ == 0)
  36         {
  37 #if defined(_WIN32)
  38                 if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER) != 0)
  39 #else
  40                 if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_EVENTTHREAD) != 0)
  41 #endif
  42                 {
  43                         const char* error = SDL_GetError();
  44                         Impl::error.init(Error::SDL_INIT, error);
  45                         return; // fatal
  46                 }
  47                 else
  48                 {
  49                         char name[128];
  50                         SDL_VideoDriverName(name, sizeof(name));
  51                         logInfo << "initialized SDL; using video driver `"
  52                                         << name << "'" << std::endl;
  53                 }
  54
  55                 if (FE_Init() != 0)
  56                 {
  57                         const char* error = FE_GetError();
  58                         Impl::error.init(Error::FASTEVENTS_INIT, error);
  59                         return; // fatal
  60                 }
  61
  62                 Impl::error.init(Error::NONE);
  63         }
  64 }
  65
  66 Backend::Backend(const Backend& backend)
  67 {
  68         ++Impl::retainCount;
  69 }
  70
  71 Backend::~Backend()
  72 {
  73         if (--Impl::retainCount == 0)
  74         {
  75                 FE_Quit();
  76                 SDL_Quit();
  77
  78                 Impl::error.reset();
  79         }
  80 }
  81
  82 bool Backend::isInitialized()
  83 {
  84         return Impl::error.code() == Error::NONE;
  85 }
  86
  87 const Error& Backend::getError()
  88 {
  89         return Impl::error;
  90 }
  91
  92
  93 } // namespace Mf
  94