internal static Filter VeldridToD3DSamplerFilter(SamplerFilter filter)
{
switch (filter)
{
case SamplerFilter.MinMagMipPoint:
return(Filter.MinMagMipPoint);
case SamplerFilter.MinMagPointMipLinear:
return(Filter.MinMagPointMipLinear);
case SamplerFilter.MinPointMagLinearMipPoint:
return(Filter.MinPointMagLinearMipPoint);
case SamplerFilter.MinPointMagMipLinear:
return(Filter.MinPointMagMipLinear);
case SamplerFilter.MinLinearMagMipPoint:
return(Filter.MinLinearMagMipPoint);
case SamplerFilter.MinLinearMagPointMipLinear:
return(Filter.MinLinearMagPointMipLinear);
case SamplerFilter.MinMagLinearMipPoint:
return(Filter.MinMagLinearMipPoint);
case SamplerFilter.MinMagMipLinear:
return(Filter.MinMagMipLinear);
case SamplerFilter.Anisotropic:
return(Filter.Anisotropic);
case SamplerFilter.ComparisonMinMagMipPoint:
return(Filter.ComparisonMinMagMipPoint);
case SamplerFilter.ComparisonMinMagPointMipLinear:
return(Filter.ComparisonMinMagPointMipLinear);
case SamplerFilter.ComparisonMinPointMagLinearMipPoint:
return(Filter.ComparisonMinPointMagLinearMipPoint);
case SamplerFilter.ComparisonMinPointMagMipLinear:
return(Filter.ComparisonMinPointMagMipLinear);
case SamplerFilter.ComparisonMinLinearMagMipPoint:
return(Filter.ComparisonMinLinearMagMipPoint);
case SamplerFilter.ComparisonMinLinearMagPointMipLinear:
return(Filter.ComparisonMinLinearMagPointMipLinear);
case SamplerFilter.ComparisonMinMagLinearMipPoint:
return(Filter.ComparisonMinMagLinearMipPoint);
case SamplerFilter.ComparisonMinMagMipLinear:
return(Filter.ComparisonMinMagMipLinear);
case SamplerFilter.ComparisonAnisotropic:
return(Filter.ComparisonAnisotropic);
default:
throw Illegal.Value <SamplerFilter>();
}
}
internal static void GetFilterParams(
SamplerFilter filter,
out VkFilter minFilter,
out VkFilter magFilter,
out VkSamplerMipmapMode mipmapMode)
{
switch (filter)
{
case SamplerFilter.Anisotropic:
minFilter = VkFilter.Linear;
magFilter = VkFilter.Linear;
mipmapMode = VkSamplerMipmapMode.Linear;
break;
case SamplerFilter.MinPoint_MagPoint_MipPoint:
minFilter = VkFilter.Nearest;
magFilter = VkFilter.Nearest;
mipmapMode = VkSamplerMipmapMode.Nearest;
break;
case SamplerFilter.MinPoint_MagPoint_MipLinear:
minFilter = VkFilter.Nearest;
magFilter = VkFilter.Nearest;
mipmapMode = VkSamplerMipmapMode.Linear;
break;
case SamplerFilter.MinPoint_MagLinear_MipPoint:
minFilter = VkFilter.Nearest;
magFilter = VkFilter.Linear;
mipmapMode = VkSamplerMipmapMode.Nearest;
break;
case SamplerFilter.MinPoint_MagLinear_MipLinear:
minFilter = VkFilter.Nearest;
magFilter = VkFilter.Linear;
mipmapMode = VkSamplerMipmapMode.Linear;
break;
case SamplerFilter.MinLinear_MagPoint_MipPoint:
minFilter = VkFilter.Linear;
magFilter = VkFilter.Nearest;
mipmapMode = VkSamplerMipmapMode.Nearest;
break;
case SamplerFilter.MinLinear_MagPoint_MipLinear:
minFilter = VkFilter.Linear;
magFilter = VkFilter.Nearest;
mipmapMode = VkSamplerMipmapMode.Linear;
break;
case SamplerFilter.MinLinear_MagLinear_MipPoint:
minFilter = VkFilter.Linear;
magFilter = VkFilter.Linear;
mipmapMode = VkSamplerMipmapMode.Nearest;
break;
case SamplerFilter.MinLinear_MagLinear_MipLinear:
minFilter = VkFilter.Linear;
magFilter = VkFilter.Linear;
mipmapMode = VkSamplerMipmapMode.Linear;
break;
default:
throw Illegal.Value <SamplerFilter>();
}
}
internal static void VeldridToGLTextureMinMagFilter(SamplerFilter filter, bool mip, out TextureMinFilter min, out TextureMagFilter mag)
{
switch (filter)
{
case SamplerFilter.MinMagMipPoint:
case SamplerFilter.ComparisonMinMagMipPoint:
min = mip ? TextureMinFilter.NearestMipmapNearest : TextureMinFilter.Nearest;
mag = TextureMagFilter.Nearest;
break;
case SamplerFilter.MinMagPointMipLinear:
case SamplerFilter.ComparisonMinMagPointMipLinear:
min = mip ? TextureMinFilter.NearestMipmapLinear : TextureMinFilter.Nearest;
mag = TextureMagFilter.Nearest;
break;
case SamplerFilter.MinPointMagLinearMipPoint:
case SamplerFilter.ComparisonMinPointMagLinearMipPoint:
min = mip ? TextureMinFilter.NearestMipmapNearest : TextureMinFilter.Nearest;
mag = TextureMagFilter.Linear;
break;
case SamplerFilter.MinPointMagMipLinear:
case SamplerFilter.ComparisonMinPointMagMipLinear:
min = mip ? TextureMinFilter.NearestMipmapLinear : TextureMinFilter.Nearest;
mag = TextureMagFilter.Linear;
break;
case SamplerFilter.MinLinearMagMipPoint:
case SamplerFilter.ComparisonMinLinearMagMipPoint:
min = mip ? TextureMinFilter.LinearMipmapNearest : TextureMinFilter.Linear;
mag = TextureMagFilter.Nearest;
break;
case SamplerFilter.MinLinearMagPointMipLinear:
case SamplerFilter.ComparisonMinLinearMagPointMipLinear:
min = mip ? TextureMinFilter.LinearMipmapLinear : TextureMinFilter.Linear;
mag = TextureMagFilter.Nearest;
break;
case SamplerFilter.MinMagLinearMipPoint:
case SamplerFilter.ComparisonMinMagLinearMipPoint:
min = mip ? TextureMinFilter.LinearMipmapNearest : TextureMinFilter.Linear;
mag = TextureMagFilter.Linear;
break;
case SamplerFilter.MinMagMipLinear:
case SamplerFilter.ComparisonMinMagMipLinear:
min = mip ? TextureMinFilter.LinearMipmapLinear : TextureMinFilter.Linear;
mag = TextureMagFilter.Linear;
break;
case SamplerFilter.Anisotropic:
case SamplerFilter.ComparisonAnisotropic:
// TODO: This doesn't map to a min/mag filtering mode.
min = TextureMinFilter.Nearest;
mag = TextureMagFilter.Nearest;
break;
default:
throw Illegal.Value <SamplerFilter>();
}
}
internal static void GetMinMagMipFilter(
SamplerFilter filter,
out MTLSamplerMinMagFilter min,
out MTLSamplerMinMagFilter mag,
out MTLSamplerMipFilter mip)
{
switch (filter)
{
case SamplerFilter.Anisotropic:
min = mag = MTLSamplerMinMagFilter.Linear;
mip = MTLSamplerMipFilter.Linear;
break;
case SamplerFilter.MinLinear_MagLinear_MipLinear:
min = MTLSamplerMinMagFilter.Linear;
mag = MTLSamplerMinMagFilter.Linear;
mip = MTLSamplerMipFilter.Linear;
break;
case SamplerFilter.MinLinear_MagLinear_MipPoint:
min = MTLSamplerMinMagFilter.Linear;
mag = MTLSamplerMinMagFilter.Linear;
mip = MTLSamplerMipFilter.Nearest;
break;
case SamplerFilter.MinLinear_MagPoint_MipLinear:
min = MTLSamplerMinMagFilter.Linear;
mag = MTLSamplerMinMagFilter.Nearest;
mip = MTLSamplerMipFilter.Linear;
break;
case SamplerFilter.MinLinear_MagPoint_MipPoint:
min = MTLSamplerMinMagFilter.Linear;
mag = MTLSamplerMinMagFilter.Nearest;
mip = MTLSamplerMipFilter.Nearest;
break;
case SamplerFilter.MinPoint_MagLinear_MipLinear:
min = MTLSamplerMinMagFilter.Nearest;
mag = MTLSamplerMinMagFilter.Linear;
mip = MTLSamplerMipFilter.Linear;
break;
case SamplerFilter.MinPoint_MagLinear_MipPoint:
min = MTLSamplerMinMagFilter.Nearest;
mag = MTLSamplerMinMagFilter.Linear;
mip = MTLSamplerMipFilter.Nearest;
break;
case SamplerFilter.MinPoint_MagPoint_MipLinear:
min = MTLSamplerMinMagFilter.Nearest;
mag = MTLSamplerMinMagFilter.Nearest;
mip = MTLSamplerMipFilter.Nearest;
break;
case SamplerFilter.MinPoint_MagPoint_MipPoint:
min = MTLSamplerMinMagFilter.Nearest;
mag = MTLSamplerMinMagFilter.Nearest;
mip = MTLSamplerMipFilter.Nearest;
break;
default:
throw Illegal.Value <SamplerFilter>();
}
}
public SamplerStateDescription(SamplerFilter filter)
{
Filter = filter;
MaxAnisotropy = 0;
}
public static SamplerDescription AsDescription(this SamplerAddressMode addressMode, SamplerFilter filter) => new SamplerDescription()
{
AddressModeU = addressMode,
AddressModeV = addressMode,
AddressModeW = addressMode,
Filter = filter
};
public unsafe InternalSamplerState(
SamplerAddressMode addressU,
SamplerAddressMode addressV,
SamplerAddressMode addressW,
SamplerFilter filter,
int maxAnisotropy,
RgbaFloat borderColor,
DepthComparison comparison,
int minLod,
int maxLod,
int lodBias,
bool mip)
{
_samplerID = GL.GenSampler();
GL.SamplerParameter(_samplerID, SamplerParameterName.TextureWrapR, (int)OpenGLESFormats.VeldridToGLTextureWrapMode(addressU));
Utilities.CheckLastGLError();
GL.SamplerParameter(_samplerID, SamplerParameterName.TextureWrapS, (int)OpenGLESFormats.VeldridToGLTextureWrapMode(addressV));
Utilities.CheckLastGLError();
GL.SamplerParameter(_samplerID, SamplerParameterName.TextureWrapT, (int)OpenGLESFormats.VeldridToGLTextureWrapMode(addressW));
Utilities.CheckLastGLError();
if (addressU == SamplerAddressMode.Border || addressV == SamplerAddressMode.Border || addressW == SamplerAddressMode.Border)
{
#pragma warning disable CS0618 // TextureBorderColor is not exposed on SamplerParameterName
GL.SamplerParameter(_samplerID, All.TextureBorderColor, (float *)&borderColor);
#pragma warning restore CS0618
Utilities.CheckLastGLError();
}
GL.SamplerParameter(_samplerID, SamplerParameterName.TextureMinLod, (float)minLod);
Utilities.CheckLastGLError();
GL.SamplerParameter(_samplerID, SamplerParameterName.TextureMaxLod, (float)maxLod);
Utilities.CheckLastGLError();
if (filter == SamplerFilter.Anisotropic || filter == SamplerFilter.ComparisonAnisotropic)
{
#pragma warning disable CS0618 // TextureMaxAnisotropyExt is not exposed on SamplerParameterName
GL.SamplerParameter(_samplerID, All.TextureMaxAnisotropyExt, (float)maxAnisotropy);
#pragma warning restore CS0618 // Type or member is obsolete
Utilities.CheckLastGLError();
GL.SamplerParameter(_samplerID, SamplerParameterName.TextureMinFilter, mip ? (int)TextureMinFilter.LinearMipmapLinear : (int)TextureMinFilter.Linear);
Utilities.CheckLastGLError();
GL.SamplerParameter(_samplerID, SamplerParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
Utilities.CheckLastGLError();
}
else
{
OpenGLESFormats.VeldridToGLTextureMinMagFilter(filter, mip, out TextureMinFilter min, out TextureMagFilter mag);
GL.SamplerParameter(_samplerID, SamplerParameterName.TextureMinFilter, (int)min);
Utilities.CheckLastGLError();
GL.SamplerParameter(_samplerID, SamplerParameterName.TextureMagFilter, (int)mag);
Utilities.CheckLastGLError();
}
if (s_comparisonFilters.Contains(filter))
{
GL.SamplerParameter(_samplerID, SamplerParameterName.TextureCompareMode, (int)All.CompareRefToTexture);
Utilities.CheckLastGLError();
GL.SamplerParameter(_samplerID, SamplerParameterName.TextureCompareFunc, (int)OpenGLESFormats.ConvertDepthComparison(comparison));
Utilities.CheckLastGLError();
}
}