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using Ryujinx.Graphics.Shader.StructuredIr;
using System;
namespace Ryujinx.Graphics.Shader
{
[Flags]
public enum SamplerType
{
None = 0,
Texture1D,
TextureBuffer,
Texture2D,
Texture3D,
TextureCube,
Mask = 0xff,
Array = 1 << 8,
Indexed = 1 << 9,
Multisample = 1 << 10,
Shadow = 1 << 11
}
static class SamplerTypeExtensions
{
public static int GetDimensions(this SamplerType type)
{
switch (type & SamplerType.Mask)
{
case SamplerType.Texture1D: return 1;
case SamplerType.TextureBuffer: return 1;
case SamplerType.Texture2D: return 2;
case SamplerType.Texture3D: return 3;
case SamplerType.TextureCube: return 3;
}
throw new ArgumentException($"Invalid sampler type \"{type}\".");
}
public static string ToGlslSamplerType(this SamplerType type)
{
string typeName;
switch (type & SamplerType.Mask)
{
case SamplerType.Texture1D: typeName = "sampler1D"; break;
case SamplerType.TextureBuffer: typeName = "samplerBuffer"; break;
case SamplerType.Texture2D: typeName = "sampler2D"; break;
case SamplerType.Texture3D: typeName = "sampler3D"; break;
case SamplerType.TextureCube: typeName = "samplerCube"; break;
default: throw new ArgumentException($"Invalid sampler type \"{type}\".");
}
if ((type & SamplerType.Multisample) != 0)
{
typeName += "MS";
}
if ((type & SamplerType.Array) != 0)
{
typeName += "Array";
}
if ((type & SamplerType.Shadow) != 0)
{
typeName += "Shadow";
}
return typeName;
}
public static string ToGlslImageType(this SamplerType type, VariableType componentType)
{
string typeName;
switch (type & SamplerType.Mask)
{
case SamplerType.Texture1D: typeName = "image1D"; break;
case SamplerType.TextureBuffer: typeName = "imageBuffer"; break;
case SamplerType.Texture2D: typeName = "image2D"; break;
case SamplerType.Texture3D: typeName = "image3D"; break;
case SamplerType.TextureCube: typeName = "imageCube"; break;
default: throw new ArgumentException($"Invalid sampler type \"{type}\".");
}
if ((type & SamplerType.Multisample) != 0)
{
typeName += "MS";
}
if ((type & SamplerType.Array) != 0)
{
typeName += "Array";
}
switch (componentType)
{
case VariableType.U32: typeName = 'u' + typeName; break;
case VariableType.S32: typeName = 'i' + typeName; break;
}
return typeName;
}
}
}
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