static inline double FixRate(double Rate)
{
static const double defaultrate = 60.0;
if (VALID_RATE(Rate))
return Rate;
return defaultrate;
}
DisplayInfo MythDisplay::GetDisplayInfo(int video_rate)
{
DisplayInfo ret;
#if defined(Q_WS_MAC)
CGDirectDisplayID disp = GetOSXDisplay(GetWindowID());
if (!disp)
return ret;
CFDictionaryRef ref = CGDisplayCurrentMode(disp);
float rate = 0.0f;
if (ref)
rate = get_float_CF(ref, kCGDisplayRefreshRate);
if (VALID_RATE(rate))
ret.rate = 1000000.0f / rate;
else
ret.rate = fix_rate(video_rate);
CGSize size_in_mm = CGDisplayScreenSize(disp);
ret.size = QSize((uint) size_in_mm.width, (uint) size_in_mm.height);
uint width = (uint)CGDisplayPixelsWide(disp);
uint height = (uint)CGDisplayPixelsHigh(disp);
ret.res = QSize(width, height);
#elif defined(Q_WS_WIN)
HDC hdc = GetDC(GetWindowID());
int rate = 0;
if (hdc)
{
rate = GetDeviceCaps(hdc, VREFRESH);
int width = GetDeviceCaps(hdc, HORZSIZE);
int height = GetDeviceCaps(hdc, VERTSIZE);
ret.size = QSize((uint)width, (uint)height);
width = GetDeviceCaps(hdc, HORZRES);
height = GetDeviceCaps(hdc, VERTRES);
ret.res = QSize((uint)width, (uint)height);
}
if (VALID_RATE(rate))
{
// see http://support.microsoft.com/kb/2006076
switch (rate)
{
case 23:
ret.rate = 41708;
break; // 23.976Hz
case 29:
ret.rate = 33367;
break; // 29.970Hz
case 47:
ret.rate = 20854;
break; // 47.952Hz
case 59:
ret.rate = 16683;
break; // 59.940Hz
case 71:
ret.rate = 13903;
break; // 71.928Hz
case 119:
ret.rate = 8342;
break; // 119.880Hz
default:
ret.rate = 1000000.0f / (float)rate;
}
}
else
ret.rate = fix_rate(video_rate);
#elif USING_X11
MythXDisplay *disp = OpenMythXDisplay();
if (!disp)
return ret;
float rate = disp->GetRefreshRate();
if (VALID_RATE(rate))
ret.rate = 1000000.0f / rate;
else
ret.rate = fix_rate(video_rate);
ret.res = disp->GetDisplaySize();
ret.size = disp->GetDisplayDimensions();
delete disp;
#endif
return ret;
}
