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Ryujinx/Ryujinx.Graphics.OpenGL/HwCapabilities.cs
riperiperi 10e17ab423
Only use persistent buffers to flush on NVIDIA and Windows+AMD (#2489)
It seems like this method of flushing data is much slower on Mesa drivers, and slightly slower on Intel Windows. Have not tested Intel Mesa, but I'm assuming it is the same as AMD.

This also adds vendor detection for AMD on Unix, which counted as "Unknown" before.
2021-07-18 11:45:50 -03:00

116 lines
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5.4 KiB
C#

using OpenTK.Graphics.OpenGL;
using System;
namespace Ryujinx.Graphics.OpenGL
{
static class HwCapabilities
{
private static readonly Lazy<bool> _supportsAstcCompression = new Lazy<bool>(() => HasExtension("GL_KHR_texture_compression_astc_ldr"));
private static readonly Lazy<bool> _supportsImageLoadFormatted = new Lazy<bool>(() => HasExtension("GL_EXT_shader_image_load_formatted"));
private static readonly Lazy<bool> _supportsParallelShaderCompile = new Lazy<bool>(() => HasExtension("GL_ARB_parallel_shader_compile"));
private static readonly Lazy<bool> _supportsPolygonOffsetClamp = new Lazy<bool>(() => HasExtension("GL_EXT_polygon_offset_clamp"));
private static readonly Lazy<bool> _supportsQuads = new Lazy<bool>(SupportsQuadsCheck);
private static readonly Lazy<bool> _supportsSeamlessCubemapPerTexture = new Lazy<bool>(() => HasExtension("GL_ARB_seamless_cubemap_per_texture"));
private static readonly Lazy<bool> _supportsTextureShadowLod = new Lazy<bool>(() => HasExtension("GL_EXT_texture_shadow_lod"));
private static readonly Lazy<bool> _supportsViewportSwizzle = new Lazy<bool>(() => HasExtension("GL_NV_viewport_swizzle"));
private static readonly Lazy<int> _maximumComputeSharedMemorySize = new Lazy<int>(() => GetLimit(All.MaxComputeSharedMemorySize));
private static readonly Lazy<int> _storageBufferOffsetAlignment = new Lazy<int>(() => GetLimit(All.ShaderStorageBufferOffsetAlignment));
public enum GpuVendor
{
Unknown,
AmdWindows,
AmdUnix,
IntelWindows,
IntelUnix,
Nvidia
}
private static readonly Lazy<GpuVendor> _gpuVendor = new Lazy<GpuVendor>(GetGpuVendor);
private static bool _isAMD => _gpuVendor.Value == GpuVendor.AmdWindows || _gpuVendor.Value == GpuVendor.AmdUnix;
private static bool _isIntel => _gpuVendor.Value == GpuVendor.IntelWindows || _gpuVendor.Value == GpuVendor.IntelUnix;
public static GpuVendor Vendor => _gpuVendor.Value;
private static Lazy<float> _maxSupportedAnisotropy = new Lazy<float>(GL.GetFloat((GetPName)All.MaxTextureMaxAnisotropy));
public static bool UsePersistentBufferForFlush => _gpuVendor.Value == GpuVendor.AmdWindows || _gpuVendor.Value == GpuVendor.Nvidia;
public static bool SupportsAstcCompression => _supportsAstcCompression.Value;
public static bool SupportsImageLoadFormatted => _supportsImageLoadFormatted.Value;
public static bool SupportsParallelShaderCompile => _supportsParallelShaderCompile.Value;
public static bool SupportsPolygonOffsetClamp => _supportsPolygonOffsetClamp.Value;
public static bool SupportsQuads => _supportsQuads.Value;
public static bool SupportsSeamlessCubemapPerTexture => _supportsSeamlessCubemapPerTexture.Value;
public static bool SupportsTextureShadowLod => _supportsTextureShadowLod.Value;
public static bool SupportsViewportSwizzle => _supportsViewportSwizzle.Value;
public static bool SupportsMismatchingViewFormat => _gpuVendor.Value != GpuVendor.AmdWindows && _gpuVendor.Value != GpuVendor.IntelWindows;
public static bool SupportsNonConstantTextureOffset => _gpuVendor.Value == GpuVendor.Nvidia;
public static bool RequiresSyncFlush => _gpuVendor.Value == GpuVendor.AmdWindows || _isIntel;
public static int MaximumComputeSharedMemorySize => _maximumComputeSharedMemorySize.Value;
public static int StorageBufferOffsetAlignment => _storageBufferOffsetAlignment.Value;
public static float MaximumSupportedAnisotropy => _maxSupportedAnisotropy.Value;
private static bool HasExtension(string name)
{
int numExtensions = GL.GetInteger(GetPName.NumExtensions);
for (int extension = 0; extension < numExtensions; extension++)
{
if (GL.GetString(StringNameIndexed.Extensions, extension) == name)
{
return true;
}
}
return false;
}
private static int GetLimit(All name)
{
return GL.GetInteger((GetPName)name);
}
private static GpuVendor GetGpuVendor()
{
string vendor = GL.GetString(StringName.Vendor).ToLower();
if (vendor == "nvidia corporation")
{
return GpuVendor.Nvidia;
}
else if (vendor == "intel")
{
string renderer = GL.GetString(StringName.Renderer).ToLower();
return renderer.Contains("mesa") ? GpuVendor.IntelUnix : GpuVendor.IntelWindows;
}
else if (vendor == "ati technologies inc." || vendor == "advanced micro devices, inc.")
{
return GpuVendor.AmdWindows;
}
else if (vendor == "amd" || vendor == "x.org")
{
return GpuVendor.AmdUnix;
}
else
{
return GpuVendor.Unknown;
}
}
private static bool SupportsQuadsCheck()
{
GL.GetError(); // Clear any existing error.
GL.Begin(PrimitiveType.Quads);
GL.End();
return GL.GetError() == ErrorCode.NoError;
}
}
}