Dogcows Code - chaz/yoink/blob - src/moof/backend.cc

   1
   2 /*]  Copyright (c) 2009-2011, Charles McGarvey  [*****************************
   3 **]  All rights reserved.
   4 *
   5 * Distributable under the terms and conditions of the 2-clause BSD license;
   6 * see the file COPYING for a complete text of the license.
   7 *
   8 *****************************************************************************/
   9
  10 #if HAVE_CONFIG_H
  11 #include "config.h"
  12 #endif
  13
  14 #include <stdexcept>
  15
  16 #include <SDL/SDL.h>
  17
  18 #include "backend.hh"
  19 #include "fastevents.h"
  20 #include "log.hh"
  21
  22
  23 namespace moof {
  24
  25
  26 static int retain_count = 0;
  27
  28 backend::backend()
  29 {
  30         if (retain_count++ == 0)
  31         {
  32 #if PLATFORM_WIN32
  33                 if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER) != 0)
  34 #else
  35                 if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_EVENTTHREAD) != 0)
  36 #endif
  37                 {
  38                         throw std::runtime_error(SDL_GetError());
  39                 }
  40                 else
  41                 {
  42                         char name[128];
  43                         SDL_VideoDriverName(name, sizeof(name));
  44                         log_info << "initialized SDL; using video driver `" <<
  45                                 name << "'" << std::endl;
  46                 }
  47                 if (FE_Init() != 0)
  48                 {
  49                         throw std::runtime_error(FE_GetError());
  50                 }
  51         }
  52 }
  53
  54 backend::backend(const backend& backend)
  55 {
  56         ++retain_count;
  57 }
  58
  59 backend& backend::operator = (const backend& backend)
  60 {
  61         ++retain_count;
  62         return *this;
  63 }
  64
  65 backend::~backend()
  66 {
  67         if (--retain_count == 0)
  68         {
  69                 log_info("shutting down SDL...");
  70                 FE_Quit();
  71                 SDL_Quit();
  72         }
  73 }
  74
  75 bool backend::is_initialized()
  76 {
  77         return 0 < retain_count;
  78 }
  79
  80
  81 } // namespace moof
  82