/// <summary>
///
/// </summary>
/// <param name="dg"></param>
/// <returns></returns>
public static IEnumerable <Adapter> GetAdapters(DisposeGroup dg)
{
// NOTE: SharpDX 1.3 requires explicit Dispose() of everything
// hence the DisposeGroup, to enforce it
using (var f = new Factory1())
{
int n = AdapterCount;
for (int i = 0; i < n; i++)
{
yield return(dg.Add(f.GetAdapter(i)));
}
}
}
/// <summary>
///
/// </summary>
/// <param name="dg"></param>
/// <returns></returns>
public static Adapter GetBestAdapter(DisposeGroup dg)
{
Direct3D.FeatureLevel high = Direct3D.FeatureLevel.Level_9_1;
Adapter ada = null;
foreach (var item in GetAdapters(dg))
{
var level = Direct3D11.Device.GetSupportedFeatureLevel(item);
if (ada == null || level > high)
{
ada = item;
high = level;
}
}
return(ada);
}
/// <summary>
///
/// </summary>
/// <param name="cFlags"></param>
/// <param name="minLevel"></param>
/// <returns></returns>
public static SharpDX.Direct3D11.Device Create11(
Direct3D11.DeviceCreationFlags cFlags = Direct3D11.DeviceCreationFlags.None,
Direct3D.FeatureLevel minLevel = Direct3D.FeatureLevel.Level_9_1)
{
using (var dg = new DisposeGroup())
{
var ada = GetBestAdapter(dg);
if (ada == null)
{
return(null);
}
var level = Direct3D11.Device.GetSupportedFeatureLevel(ada);
if (level < minLevel)
{
return(null);
}
return(new Direct3D11.Device(ada, cFlags, level));
}
}
/// <summary>
///
/// </summary>
/// <param name="cFlags"></param>
/// <param name="minLevel"></param>
/// <returns></returns>
public static SharpDX.Direct3D10.Device1 Create10(
Direct3D10.DeviceCreationFlags cFlags = Direct3D10.DeviceCreationFlags.None,
Direct3D10.FeatureLevel minLevel = Direct3D10.FeatureLevel.Level_9_1)
{
using (var dg = new DisposeGroup())
{
var ada = GetBestAdapter(dg);
if (ada == null)
{
return(null);
}
var level = Direct3D11.Device.GetSupportedFeatureLevel(ada);
Direct3D10.FeatureLevel level10 = Direct3D10.FeatureLevel.Level_10_1;
if (level < Direct3D.FeatureLevel.Level_10_1)
{
level10 = (Direct3D10.FeatureLevel)(int) level;
}
if (level10 < minLevel)
{
return(null);
}
return(new Direct3D10.Device1(ada, cFlags, level10));
}
}
