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48 lines
No EOL
1.9 KiB
C#
48 lines
No EOL
1.9 KiB
C#
using OpenTK.Graphics.OpenGL;
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using System;
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namespace Ryujinx.Graphics.OpenGL
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{
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static class HwCapabilities
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{
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private static Lazy<bool> _supportsAstcCompression = new Lazy<bool>(() => HasExtension("GL_KHR_texture_compression_astc_ldr"));
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private static Lazy<int> _maximumViewportDimensions = new Lazy<int>(() => GetLimit(All.MaxViewportDims));
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private static Lazy<int> _maximumComputeSharedMemorySize = new Lazy<int>(() => GetLimit(All.MaxComputeSharedMemorySize));
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private static Lazy<int> _storageBufferOffsetAlignment = new Lazy<int>(() => GetLimit(All.ShaderStorageBufferOffsetAlignment));
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private static Lazy<bool> _isNvidiaDriver = new Lazy<bool>(() => IsNvidiaDriver());
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public static bool SupportsAstcCompression => _supportsAstcCompression.Value;
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public static bool SupportsNonConstantTextureOffset => _isNvidiaDriver.Value;
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public static int MaximumViewportDimensions => _maximumViewportDimensions.Value;
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public static int MaximumComputeSharedMemorySize => _maximumComputeSharedMemorySize.Value;
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public static int StorageBufferOffsetAlignment => _storageBufferOffsetAlignment.Value;
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private static bool HasExtension(string name)
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{
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int numExtensions = GL.GetInteger(GetPName.NumExtensions);
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for (int extension = 0; extension < numExtensions; extension++)
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{
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if (GL.GetString(StringNameIndexed.Extensions, extension) == name)
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{
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return true;
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}
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}
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return false;
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}
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private static int GetLimit(All name)
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{
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return GL.GetInteger((GetPName)name);
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}
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private static bool IsNvidiaDriver()
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{
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return GL.GetString(StringName.Vendor).Equals("NVIDIA Corporation");
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}
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}
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} |