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using Ryujinx.Common.Logging;
using Ryujinx.Graphics.GAL;
using Ryujinx.Graphics.Gpu.Image;
using Ryujinx.Graphics.Shader;
using Ryujinx.Graphics.Shader.Translation;
namespace Ryujinx.Graphics.Gpu.Shader
{
/// <summary>
/// GPU accessor.
/// </summary>
class GpuAccessorBase
{
private readonly GpuContext _context;
private readonly ResourceCounts _resourceCounts;
private readonly int _stageIndex;
private int _reservedConstantBuffers;
private int _reservedStorageBuffers;
private int _reservedTextures;
private int _reservedImages;
/// <summary>
/// Creates a new GPU accessor.
/// </summary>
/// <param name="context">GPU context</param>
/// <param name="resourceCounts">Counter of GPU resources used by the shader</param>
/// <param name="stageIndex">Index of the shader stage, 0 for compute</param>
public GpuAccessorBase(GpuContext context, ResourceCounts resourceCounts, int stageIndex)
{
_context = context;
_resourceCounts = resourceCounts;
_stageIndex = stageIndex;
}
/// <summary>
/// Initializes counts for bindings that will be reserved for emulator use.
/// </summary>
/// <param name="tfEnabled">Indicates if the current graphics shader is used with transform feedback enabled</param>
/// <param name="vertexAsCompute">Indicates that the vertex shader will be emulated on a compute shader</param>
public void InitializeReservedCounts(bool tfEnabled, bool vertexAsCompute)
{
ResourceReservationCounts rrc = new(!_context.Capabilities.SupportsTransformFeedback && tfEnabled, vertexAsCompute);
_reservedConstantBuffers = rrc.ReservedConstantBuffers;
_reservedStorageBuffers = rrc.ReservedStorageBuffers;
_reservedTextures = rrc.ReservedTextures;
_reservedImages = rrc.ReservedImages;
}
public int QueryBindingConstantBuffer(int index)
{
int binding;
if (_context.Capabilities.Api == TargetApi.Vulkan)
{
binding = GetBindingFromIndex(index, _context.Capabilities.MaximumUniformBuffersPerStage, "Uniform buffer");
}
else
{
binding = _resourceCounts.UniformBuffersCount++;
}
return binding + _reservedConstantBuffers;
}
public int QueryBindingStorageBuffer(int index)
{
int binding;
if (_context.Capabilities.Api == TargetApi.Vulkan)
{
binding = GetBindingFromIndex(index, _context.Capabilities.MaximumStorageBuffersPerStage, "Storage buffer");
}
else
{
binding = _resourceCounts.StorageBuffersCount++;
}
return binding + _reservedStorageBuffers;
}
public int QueryBindingTexture(int index, bool isBuffer)
{
int binding;
if (_context.Capabilities.Api == TargetApi.Vulkan)
{
if (isBuffer)
{
index += (int)_context.Capabilities.MaximumTexturesPerStage;
}
binding = GetBindingFromIndex(index, _context.Capabilities.MaximumTexturesPerStage * 2, "Texture");
}
else
{
binding = _resourceCounts.TexturesCount++;
}
return binding + _reservedTextures;
}
public int QueryBindingImage(int index, bool isBuffer)
{
int binding;
if (_context.Capabilities.Api == TargetApi.Vulkan)
{
if (isBuffer)
{
index += (int)_context.Capabilities.MaximumImagesPerStage;
}
binding = GetBindingFromIndex(index, _context.Capabilities.MaximumImagesPerStage * 2, "Image");
}
else
{
binding = _resourceCounts.ImagesCount++;
}
return binding + _reservedImages;
}
private int GetBindingFromIndex(int index, uint maxPerStage, string resourceName)
{
if ((uint)index >= maxPerStage)
{
Logger.Error?.Print(LogClass.Gpu, $"{resourceName} index {index} exceeds per stage limit of {maxPerStage}.");
}
return GetStageIndex(_stageIndex) * (int)maxPerStage + index;
}
public static int GetStageIndex(int stageIndex)
{
// This is just a simple remapping to ensure that most frequently used shader stages
// have the lowest binding numbers.
// This is useful because if we need to run on a system with a low limit on the bindings,
// then we can still get most games working as the most common shaders will have low binding numbers.
return stageIndex switch
{
4 => 1, // Fragment
3 => 2, // Geometry
1 => 3, // Tessellation control
2 => 4, // Tessellation evaluation
_ => 0, // Vertex/Compute
};
}
public int QueryHostGatherBiasPrecision() => _context.Capabilities.GatherBiasPrecision;
public bool QueryHostReducedPrecision() => _context.Capabilities.ReduceShaderPrecision;
public bool QueryHostHasFrontFacingBug() => _context.Capabilities.HasFrontFacingBug;
public bool QueryHostHasVectorIndexingBug() => _context.Capabilities.HasVectorIndexingBug;
public int QueryHostStorageBufferOffsetAlignment() => _context.Capabilities.StorageBufferOffsetAlignment;
public int QueryHostSubgroupSize() => _context.Capabilities.ShaderSubgroupSize;
public bool QueryHostSupportsBgraFormat() => _context.Capabilities.SupportsBgraFormat;
public bool QueryHostSupportsFragmentShaderInterlock() => _context.Capabilities.SupportsFragmentShaderInterlock;
public bool QueryHostSupportsFragmentShaderOrderingIntel() => _context.Capabilities.SupportsFragmentShaderOrderingIntel;
public bool QueryHostSupportsGeometryShader() => _context.Capabilities.SupportsGeometryShader;
public bool QueryHostSupportsGeometryShaderPassthrough() => _context.Capabilities.SupportsGeometryShaderPassthrough;
public bool QueryHostSupportsImageLoadFormatted() => _context.Capabilities.SupportsImageLoadFormatted;
public bool QueryHostSupportsLayerVertexTessellation() => _context.Capabilities.SupportsLayerVertexTessellation;
public bool QueryHostSupportsNonConstantTextureOffset() => _context.Capabilities.SupportsNonConstantTextureOffset;
public bool QueryHostSupportsScaledVertexFormats() => _context.Capabilities.SupportsScaledVertexFormats;
public bool QueryHostSupportsShaderBallot() => _context.Capabilities.SupportsShaderBallot;
public bool QueryHostSupportsShaderBarrierDivergence() => _context.Capabilities.SupportsShaderBarrierDivergence;
public bool QueryHostSupportsShaderFloat64() => _context.Capabilities.SupportsShaderFloat64;
public bool QueryHostSupportsSnormBufferTextureFormat() => _context.Capabilities.SupportsSnormBufferTextureFormat;
public bool QueryHostSupportsTextureGatherOffsets() => _context.Capabilities.SupportsTextureGatherOffsets;
public bool QueryHostSupportsTextureShadowLod() => _context.Capabilities.SupportsTextureShadowLod;
public bool QueryHostSupportsTransformFeedback() => _context.Capabilities.SupportsTransformFeedback;
public bool QueryHostSupportsViewportIndexVertexTessellation() => _context.Capabilities.SupportsViewportIndexVertexTessellation;
public bool QueryHostSupportsViewportMask() => _context.Capabilities.SupportsViewportMask;
public bool QueryHostSupportsDepthClipControl() => _context.Capabilities.SupportsDepthClipControl;
/// <summary>
/// Converts a packed Maxwell texture format to the shader translator texture format.
/// </summary>
/// <param name="format">Packed maxwell format</param>
/// <param name="formatSrgb">Indicates if the format is sRGB</param>
/// <returns>Shader translator texture format</returns>
protected static TextureFormat ConvertToTextureFormat(uint format, bool formatSrgb)
{
if (!FormatTable.TryGetTextureFormat(format, formatSrgb, out FormatInfo formatInfo))
{
return TextureFormat.Unknown;
}
return formatInfo.Format switch
{
#pragma warning disable IDE0055 // Disable formatting
Format.R8Unorm => TextureFormat.R8Unorm,
Format.R8Snorm => TextureFormat.R8Snorm,
Format.R8Uint => TextureFormat.R8Uint,
Format.R8Sint => TextureFormat.R8Sint,
Format.R16Float => TextureFormat.R16Float,
Format.R16Unorm => TextureFormat.R16Unorm,
Format.R16Snorm => TextureFormat.R16Snorm,
Format.R16Uint => TextureFormat.R16Uint,
Format.R16Sint => TextureFormat.R16Sint,
Format.R32Float => TextureFormat.R32Float,
Format.R32Uint => TextureFormat.R32Uint,
Format.R32Sint => TextureFormat.R32Sint,
Format.R8G8Unorm => TextureFormat.R8G8Unorm,
Format.R8G8Snorm => TextureFormat.R8G8Snorm,
Format.R8G8Uint => TextureFormat.R8G8Uint,
Format.R8G8Sint => TextureFormat.R8G8Sint,
Format.R16G16Float => TextureFormat.R16G16Float,
Format.R16G16Unorm => TextureFormat.R16G16Unorm,
Format.R16G16Snorm => TextureFormat.R16G16Snorm,
Format.R16G16Uint => TextureFormat.R16G16Uint,
Format.R16G16Sint => TextureFormat.R16G16Sint,
Format.R32G32Float => TextureFormat.R32G32Float,
Format.R32G32Uint => TextureFormat.R32G32Uint,
Format.R32G32Sint => TextureFormat.R32G32Sint,
Format.R8G8B8A8Unorm => TextureFormat.R8G8B8A8Unorm,
Format.R8G8B8A8Snorm => TextureFormat.R8G8B8A8Snorm,
Format.R8G8B8A8Uint => TextureFormat.R8G8B8A8Uint,
Format.R8G8B8A8Sint => TextureFormat.R8G8B8A8Sint,
Format.R8G8B8A8Srgb => TextureFormat.R8G8B8A8Unorm,
Format.R16G16B16A16Float => TextureFormat.R16G16B16A16Float,
Format.R16G16B16A16Unorm => TextureFormat.R16G16B16A16Unorm,
Format.R16G16B16A16Snorm => TextureFormat.R16G16B16A16Snorm,
Format.R16G16B16A16Uint => TextureFormat.R16G16B16A16Uint,
Format.R16G16B16A16Sint => TextureFormat.R16G16B16A16Sint,
Format.R32G32B32A32Float => TextureFormat.R32G32B32A32Float,
Format.R32G32B32A32Uint => TextureFormat.R32G32B32A32Uint,
Format.R32G32B32A32Sint => TextureFormat.R32G32B32A32Sint,
Format.R10G10B10A2Unorm => TextureFormat.R10G10B10A2Unorm,
Format.R10G10B10A2Uint => TextureFormat.R10G10B10A2Uint,
Format.R11G11B10Float => TextureFormat.R11G11B10Float,
_ => TextureFormat.Unknown,
#pragma warning restore IDE0055
};
}
}
}
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