source/graphics/windows/display.cpp

   1 #include <windows.h>
   2 #include "display.h"
   3 #include "display_private.h"
   4
   5 using namespace std;
   6
   7 namespace Msp {
   8 namespace Graphics {
   9
  10 Display::Display(const string &):
  11         priv(new Private)
  12 {
  13         for(unsigned i=0;; ++i)
  14         {
  15                 DEVMODE info;
  16                 if(!EnumDisplaySettings(0, i, &info))
  17                         break;
  18
  19                 VideoMode mode(info.dmPelsWidth, info.dmPelsHeight);
  20                 mode.rate = info.dmDisplayFrequency;
  21                 modes.push_back(mode);
  22         }
  23
  24         DEVMODE info;
  25         if(EnumDisplaySettings(0, ENUM_CURRENT_SETTINGS, &info))
  26         {
  27                 orig_mode = VideoMode(info.dmPelsWidth, info.dmPelsHeight);
  28                 orig_mode.rate = info.dmDisplayFrequency;
  29         }
  30 }
  31
  32 Display::~Display()
  33 {
  34 }
  35
  36 void Display::set_mode(const VideoMode &mode)
  37 {
  38         DEVMODE info;
  39         info.dmSize = sizeof(DEVMODE);
  40         info.dmFields = DM_PELSWIDTH|DM_PELSHEIGHT;
  41         info.dmPelsWidth = mode.width;
  42         info.dmPelsHeight = mode.height;
  43         if(mode.rate)
  44         {
  45                 info.dmFields |= DM_DISPLAYFREQUENCY;
  46                 info.dmDisplayFrequency = mode.rate;
  47         }
  48
  49         LONG ret = ChangeDisplaySettings(&info, CDS_FULLSCREEN);
  50         if(ret!=DISP_CHANGE_SUCCESSFUL)
  51                 throw unsupported_video_mode(mode);
  52 }
  53
  54 bool Display::process_events()
  55 {
  56         MSG msg;
  57         if(PeekMessage(&msg, 0, 0, 0, PM_REMOVE))
  58         {
  59                 DispatchMessage(&msg);
  60                 return true;
  61         }
  62         else
  63                 return false;
  64 }
  65
  66 void Display::check_error()
  67 {
  68 }
  69
  70 } // namespace Msp
  71 } // namespace Graphics