/// <summary>
/// Initializes a new instance of the <see cref="FormatSupportInfo"/> class.
/// </summary>
/// <param name="format">The format being queried.</param>
/// <param name="formatSupport">The format support.</param>
/// <param name="computeSupport">The compute support.</param>
/// <param name="multisampleMax">The multisample maximum.</param>
public FormatSupportInfo(BufferFormat format,
D3D11.FormatSupport formatSupport,
D3D11.ComputeShaderFormatSupport computeSupport,
GorgonMultisampleInfo multisampleMax)
{
Format = format;
FormatSupport = (BufferFormatSupport)formatSupport;
ComputeSupport = (ComputeShaderFormatSupport)computeSupport;
MaxMultisampleCountQuality = multisampleMax;
}
/// <summary>
/// Checks for standard antialiasing support.
/// </summary>
private bool CheckIsStandardAntialiasingPossible()
{
// Very important to check possible antialiasing
// More on the used technique
// see http://msdn.microsoft.com/en-us/library/windows/apps/dn458384.aspx
D3D11.FormatSupport formatSupport = m_handlerD3D11.Device1.CheckFormatSupport(GraphicsHelper.DEFAULT_TEXTURE_FORMAT);
if ((formatSupport & D3D11.FormatSupport.MultisampleRenderTarget) != D3D11.FormatSupport.MultisampleRenderTarget)
{
return(false);
}
if ((formatSupport & D3D11.FormatSupport.MultisampleResolve) != D3D11.FormatSupport.MultisampleResolve)
{
return(false);
}
if (m_handlerD3D11.FeatureLevel == SharpDX.Direct3D.FeatureLevel.Level_9_1)
{
return(false);
}
try
{
D3D11.Texture2DDescription textureDescription = new D3D11.Texture2DDescription();
textureDescription.Width = 100;
textureDescription.Height = 100;
textureDescription.MipLevels = 1;
textureDescription.ArraySize = 1;
textureDescription.Format = GraphicsHelper.DEFAULT_TEXTURE_FORMAT;
textureDescription.Usage = D3D11.ResourceUsage.Default;
textureDescription.SampleDescription = new DXGI.SampleDescription(2, 0);
textureDescription.BindFlags = D3D11.BindFlags.ShaderResource | D3D11.BindFlags.RenderTarget;
textureDescription.CpuAccessFlags = D3D11.CpuAccessFlags.None;
textureDescription.OptionFlags = D3D11.ResourceOptionFlags.None;
D3D11.Texture2D testTexture = new D3D11.Texture2D(m_handlerD3D11.Device1, textureDescription);
GraphicsHelper.SafeDispose(ref testTexture);
}
catch (Exception)
{
return(false);
}
// Check for quality levels
int lowQualityLevels = m_handlerD3D11.Device1.CheckMultisampleQualityLevels(GraphicsHelper.DEFAULT_TEXTURE_FORMAT, 2);
int mediumQualityLevels = m_handlerD3D11.Device1.CheckMultisampleQualityLevels(GraphicsHelper.DEFAULT_TEXTURE_FORMAT, 4);
int hightQualityLevels = m_handlerD3D11.Device1.CheckMultisampleQualityLevels(GraphicsHelper.DEFAULT_TEXTURE_FORMAT, 8);
// Generate sample descriptions for each possible quality level
if (lowQualityLevels > 0)
{
m_antialiasingConfigLow = new DXGI.SampleDescription(2, lowQualityLevels - 1);
}
if (mediumQualityLevels > 0)
{
m_antialiasingConfigMedium = new DXGI.SampleDescription(4, mediumQualityLevels - 1);
}
if (hightQualityLevels > 0)
{
m_antialiasingConfigHigh = new DXGI.SampleDescription(8, hightQualityLevels - 1);
}
return(lowQualityLevels > 0);
}