internal static VkBorderColor VdToVkSamplerBorderColor(SamplerBorderColor borderColor)
{
switch (borderColor)
{
case SamplerBorderColor.TransparentBlack:
return VkBorderColor.FloatTransparentBlack;
case SamplerBorderColor.OpaqueBlack:
return VkBorderColor.FloatOpaqueBlack;
case SamplerBorderColor.OpaqueWhite:
return VkBorderColor.FloatOpaqueWhite;
default:
throw Illegal.Value<SamplerBorderColor>();
}
}
/// <summary>
/// Default SamplerStateDescription values.
/// </summary>
public void SetDefault()
{
AddressModeU = SamplerAddressMode.ClampToEdge;
AddressModeV = SamplerAddressMode.ClampToEdge;
AddressModeW = SamplerAddressMode.ClampToEdge;
MagFilter = SamplerMinMagFilter.Nearest;
MinFilter = SamplerMinMagFilter.Nearest;
MipmapFilter = SamplerMipFilter.Nearest;
MaxAnisotropy = 1;
LodMinClamp = 0.0f;
LodMaxClamp = float.MaxValue;
CompareFunction = CompareFunction.Never;
BorderColor = SamplerBorderColor.TransparentBlack;
}
internal static MTLSamplerBorderColor VdToMTLBorderColor(SamplerBorderColor borderColor)
{
switch (borderColor)
{
case SamplerBorderColor.TransparentBlack:
return(MTLSamplerBorderColor.TransparentBlack);
case SamplerBorderColor.OpaqueBlack:
return(MTLSamplerBorderColor.OpaqueBlack);
case SamplerBorderColor.OpaqueWhite:
return(MTLSamplerBorderColor.OpaqueWhite);
default:
throw Illegal.Value <SamplerBorderColor>();
}
}
private static Color4 ToRawColor4(SamplerBorderColor borderColor)
{
switch (borderColor)
{
case SamplerBorderColor.TransparentBlack:
return(new Color4(0, 0, 0, 0));
case SamplerBorderColor.OpaqueBlack:
return(new Color4(0, 0, 0, 1));
case SamplerBorderColor.OpaqueWhite:
return(new Color4(1, 1, 1, 1));
default:
throw Illegal.Value <SamplerBorderColor>();
}
}
/// <summary>
/// Constructs a new SamplerDescription.
/// </summary>
/// <param name="addressModeU">The <see cref="SamplerAddressMode"/> mode to use for the U (or R) coordinate.</param>
/// <param name="addressModeV">The <see cref="SamplerAddressMode"/> mode to use for the V (or S) coordinate.</param>
/// <param name="addressModeW">The <see cref="SamplerAddressMode"/> mode to use for the W (or T) coordinate.</param>
/// <param name="filter">The filter used when sampling.</param>
/// <param name="comparisonKind">An optional value controlling the kind of comparison to use when sampling. If null,
/// comparison sampling is not used.</param>
/// <param name="maximumAnisotropy">The maximum anisotropy of the filter, when <see cref="SamplerFilter.Anisotropic"/> is
/// used, or otherwise ignored.</param>
/// <param name="minimumLod">The minimum level of detail.</param>
/// <param name="maximumLod">The maximum level of detail.</param>
/// <param name="lodBias">The level of detail bias.</param>
/// <param name="borderColor">The constant color that is sampled when <see cref="SamplerAddressMode.Border"/> is used, or
/// otherwise ignored.</param>
public SamplerDescription(
SamplerAddressMode addressModeU,
SamplerAddressMode addressModeV,
SamplerAddressMode addressModeW,
SamplerFilter filter,
ComparisonKind?comparisonKind,
uint maximumAnisotropy,
uint minimumLod,
uint maximumLod,
int lodBias,
SamplerBorderColor borderColor)
{
AddressModeU = addressModeU;
AddressModeV = addressModeV;
AddressModeW = addressModeW;
Filter = filter;
ComparisonKind = comparisonKind;
MaximumAnisotropy = maximumAnisotropy;
MinimumLod = minimumLod;
MaximumLod = maximumLod;
LodBias = lodBias;
BorderColor = borderColor;
}
