/// <summary>
/// Enumerates all available display modes for this output and stores them in <see cref="SupportedDisplayModes"/>.
/// </summary>
private void InitializeSupportedDisplayModes()
{
var modesAvailable = new List <DisplayMode>();
var modesMap = new Dictionary <string, DisplayMode>();
#if DIRECTX11_1
var output1 = output.QueryInterface <Output1>();
#endif
try
{
const DisplayModeEnumerationFlags displayModeEnumerationFlags = DisplayModeEnumerationFlags.Interlaced | DisplayModeEnumerationFlags.Scaling;
foreach (var format in Enum.GetValues(typeof(SharpDX.DXGI.Format)))
{
var dxgiFormat = (Format)format;
#if DIRECTX11_1
var modes = output1.GetDisplayModeList1(dxgiFormat, displayModeEnumerationFlags);
#else
var modes = output.GetDisplayModeList(dxgiFormat, displayModeEnumerationFlags);
#endif
foreach (var mode in modes)
{
if (mode.Scaling == DisplayModeScaling.Unspecified)
{
var key = format + ";" + mode.Width + ";" + mode.Height + ";" + mode.RefreshRate.Numerator + ";" + mode.RefreshRate.Denominator;
DisplayMode oldMode;
if (!modesMap.TryGetValue(key, out oldMode))
{
var displayMode = DisplayMode.FromDescription(mode);
modesMap.Add(key, displayMode);
modesAvailable.Add(displayMode);
}
}
}
}
}
catch (SharpDX.SharpDXException dxgiException)
{
if (dxgiException.ResultCode != ResultCode.NotCurrentlyAvailable)
{
throw;
}
}
#if DIRECTX11_1
output1.Dispose();
#endif
supportedDisplayModes = modesAvailable.ToArray();
}
/// <summary>
/// Find the display mode that most closely matches the requested display mode.
/// </summary>
/// <param name="targetProfiles">The target profile, as available formats are different depending on the feature level..</param>
/// <param name="mode">The mode.</param>
/// <returns>Returns the closes display mode.</returns>
/// <unmanaged>HRESULT IDXGIOutput::FindClosestMatchingMode([In] const DXGI_MODE_DESC* pModeToMatch,[Out] DXGI_MODE_DESC* pClosestMatch,[In, Optional] IUnknown* pConcernedDevice)</unmanaged>
/// <remarks>Direct3D devices require UNORM formats. This method finds the closest matching available display mode to the mode specified in pModeToMatch. Similarly ranked fields (i.e. all specified, or all unspecified, etc) are resolved in the following order. ScanlineOrdering Scaling Format Resolution RefreshRate When determining the closest value for a particular field, previously matched fields are used to filter the display mode list choices, and other fields are ignored. For example, when matching Resolution, the display mode list will have already been filtered by a certain ScanlineOrdering, Scaling, and Format, while RefreshRate is ignored. This ordering doesn't define the absolute ordering for every usage scenario of FindClosestMatchingMode, because the application can choose some values initially, effectively changing the order that fields are chosen. Fields of the display mode are matched one at a time, generally in a specified order. If a field is unspecified, FindClosestMatchingMode gravitates toward the values for the desktop related to this output. If this output is not part of the desktop, then the default desktop output is used to find values. If an application uses a fully unspecified display mode, FindClosestMatchingMode will typically return a display mode that matches the desktop settings for this output. Unspecified fields are lower priority than specified fields and will be resolved later than specified fields.</remarks>
public DisplayMode FindClosestMatchingDisplayMode(GraphicsProfile[] targetProfiles, DisplayMode mode)
{
if (targetProfiles == null)
{
throw new ArgumentNullException("targetProfiles");
}
ModeDescription closestDescription;
SharpDX.Direct3D12.Device deviceTemp = null;
for (int i = 0; i < targetProfiles.Length; i++)
{
// Create Device D3D12 with feature Level based on profile
try
{
deviceTemp = new SharpDX.Direct3D12.Device(Adapter.NativeAdapter, (FeatureLevel)targetProfiles[i]);
break;
}
catch (Exception)
{
}
}
if (deviceTemp == null)
{
throw new InvalidOperationException("Could not create D3D12 graphics device");
}
var description = new SharpDX.DXGI.ModeDescription()
{
Width = mode.Width,
Height = mode.Height,
RefreshRate = mode.RefreshRate.ToSharpDX(),
Format = (SharpDX.DXGI.Format)mode.Format,
Scaling = DisplayModeScaling.Unspecified,
ScanlineOrdering = DisplayModeScanlineOrder.Unspecified
};
using (var device = deviceTemp)
output.GetClosestMatchingMode(device, description, out closestDescription);
return(DisplayMode.FromDescription(closestDescription));
}
/// <summary>
/// Find the display mode that most closely matches the requested display mode.
/// </summary>
/// <param name="targetProfiles">The target profile, as available formats are different depending on the feature level..</param>
/// <param name="mode">The mode.</param>
/// <returns>Returns the closes display mode.</returns>
/// <unmanaged>HRESULT IDXGIOutput::FindClosestMatchingMode([In] const DXGI_MODE_DESC* pModeToMatch,[Out] DXGI_MODE_DESC* pClosestMatch,[In, Optional] IUnknown* pConcernedDevice)</unmanaged>
/// <remarks>
/// Direct3D devices require UNORM formats. This method finds the closest matching available display mode
/// to the mode specified in pModeToMatch. Similarly ranked fields (i.e. all specified, or all unspecified,
/// etc) are resolved in the following order. ScanlineOrdering Scaling Format Resolution RefreshRate
/// When determining the closest value for a particular field, previously matched fields are used to filter
/// the display mode list choices, and other fields are ignored. For example, when matching Resolution,
/// the display mode list will have already been filtered by a certain ScanlineOrdering, Scaling, and
/// Format, while RefreshRate is ignored. This ordering doesn't define the absolute ordering for every
/// usage scenario of FindClosestMatchingMode, because the application can choose some values initially,
/// effectively changing the order that fields are chosen. Fields of the display mode are matched one at a
/// time, generally in a specified order. If a field is unspecified, FindClosestMatchingMode gravitates
/// toward the values for the desktop related to this output. If this output is not part of the desktop,
/// then the default desktop output is used to find values. If an application uses a fully unspecified
/// display mode, FindClosestMatchingMode will typically return a display mode that matches the desktop
/// settings for this output.
/// Unspecified fields are lower priority than specified fields and will be resolved later than specified
/// fields.
/// </remarks>
public DisplayMode FindClosestMatchingDisplayMode(GraphicsProfile[] targetProfiles, DisplayMode mode)
{
if (targetProfiles == null)
{
throw new ArgumentNullException("targetProfiles");
}
ModeDescription closestDescription;
SharpDX.Direct3D11.Device deviceTemp = null;
try
{
var features = new SharpDX.Direct3D.FeatureLevel[targetProfiles.Length];
for (int i = 0; i < targetProfiles.Length; i++)
{
features[i] = (FeatureLevel)targetProfiles[i];
}
deviceTemp = new SharpDX.Direct3D11.Device(adapter.NativeAdapter, SharpDX.Direct3D11.DeviceCreationFlags.None, features);
}
catch (Exception) { }
var description = new SharpDX.DXGI.ModeDescription()
{
Width = mode.Width,
Height = mode.Height,
RefreshRate = mode.RefreshRate.ToSharpDX(),
Format = (SharpDX.DXGI.Format)mode.Format,
Scaling = DisplayModeScaling.Unspecified,
ScanlineOrdering = DisplayModeScanlineOrder.Unspecified,
};
using (var device = deviceTemp)
output.GetClosestMatchingMode(device, description, out closestDescription);
return(DisplayMode.FromDescription(closestDescription));
}