private void CreateDevice()
{
using (SharpDX.DXGI.Factory4 factory = new Factory4())
{
_dev = new SharpDX.Direct3D12.Device(factory.Adapters[0], FeatureLevel.Level_11_0);
}
int[] levels_ =
{
(int)FeatureLevel.Level_12_1,
(int)FeatureLevel.Level_12_0,
(int)FeatureLevel.Level_11_1,
(int)FeatureLevel.Level_11_0
};
GCHandle pinnedArray = GCHandle.Alloc(levels_, GCHandleType.Pinned);
IntPtr pointer = pinnedArray.AddrOfPinnedObject();
SharpDX.Direct3D.FeatureLevel level = FeatureLevel.Level_11_0;
SharpDX.Direct3D12.FeatureDataFeatureLevels levels = new FeatureDataFeatureLevels();
levels.FeatureLevelCount = levels_.Length;
levels.FeatureLevelsRequestedPointer = pointer;
if (_dev.CheckFeatureSupport(SharpDX.Direct3D12.Feature.FeatureLevels, ref levels))
{
level = levels.MaxSupportedFeatureLevel;
}
pinnedArray.Free();
System.Console.WriteLine($" Feature Level: {(((int)level) >> 12) & 0xF}_{(((int)level) >> 8) & 0xF}");
}
public unsafe Result CheckMaxSupportedFeatureLevel(FeatureLevel[] featureLevels, out FeatureLevel maxSupportedFeatureLevel)
{
fixed(FeatureLevel *levelsPtr = &featureLevels[0])
{
var featureData = new FeatureDataFeatureLevels
{
NumFeatureLevels = featureLevels.Length,
PFeatureLevelsRequested = new IntPtr(levelsPtr)
};
var result = CheckFeatureSupport(Feature.FeatureLevels, new IntPtr(&featureData), Interop.SizeOf <FeatureDataFeatureLevels>());
maxSupportedFeatureLevel = featureData.MaxSupportedFeatureLevel;
return(result);
}
}
/// <summary>
/// Query for the feature levels supported by the device
/// </summary>
/// <param name="requestedFeatureLevels">An array of feature levels to query support for. The highest feature level in this array that is supported by the device is returned.</param>
/// <returns>The highest feature level of the provided feature levels that is supported by this device.</returns>
public unsafe FeatureLevel CheckFeatureLevelsSupport(params FeatureLevel[] requestedFeatureLevels)
{
fixed(FeatureLevel *featureLevels = requestedFeatureLevels)
{
var query = new FeatureQueryFeatureLevels()
{
RequestedFeatureLevelCount = requestedFeatureLevels.Length,
RequestedFeatureLevels = new(featureLevels),
};
var data = new FeatureDataFeatureLevels();
CheckFeatureSupport(Feature.FeatureLevels, sizeof(FeatureQueryFeatureLevels), new(&query), sizeof(FeatureDataFeatureLevels), new(&data)).CheckError();
return(data.MaxSupportedFeatureLevel);
}
}
public FeatureLevel CheckMaxSupportedFeatureLevel(FeatureLevel[] featureLevels)
{
fixed(FeatureLevel *levelsPtr = featureLevels)
{
var featureData = new FeatureDataFeatureLevels
{
NumFeatureLevels = featureLevels.Length,
FeatureLevelsRequested = new IntPtr(levelsPtr),
MaxSupportedFeatureLevel = FeatureLevel.Level_11_0
};
if (CheckFeatureSupport(Feature.FeatureLevels, &featureData, sizeof(FeatureDataFeatureLevels)).Success)
{
return(featureData.MaxSupportedFeatureLevel);
}
return(FeatureLevel.Level_11_0);
}
}
public unsafe FeatureLevel CheckMaxSupportedFeatureLevel(FeatureLevel[] featureLevels)
{
fixed(FeatureLevel *levelsPtr = &featureLevels[0])
{
var featureData = new FeatureDataFeatureLevels
{
NumFeatureLevels = featureLevels.Length,
FeatureLevelsRequestedPointer = new IntPtr(levelsPtr),
MaxSupportedFeatureLevel = FeatureLevel.Level_11_0
};
if (CheckFeatureSupport(Feature.FeatureLevels, new IntPtr(&featureData), Unsafe.SizeOf <FeatureDataFeatureLevels>()).Success)
{
return(featureData.MaxSupportedFeatureLevel);
}
return(FeatureLevel.Level_11_0);
}
}
