source/graphics/windows/display.cpp

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