Ryujinx/src/Ryujinx.Graphics.Metal/EncoderStateManager.cs
2024-09-28 19:03:01 -04:00

686 lines
28 KiB
C#

using Ryujinx.Common.Logging;
using Ryujinx.Graphics.GAL;
using Ryujinx.Graphics.Shader;
using SharpMetal.Foundation;
using SharpMetal.Metal;
using System;
using System.Collections.Generic;
using System.Runtime.CompilerServices;
using System.Runtime.Versioning;
namespace Ryujinx.Graphics.Metal
{
[SupportedOSPlatform("macos")]
struct EncoderStateManager
{
private readonly MTLDevice _device;
private readonly Pipeline _pipeline;
private EncoderState _currentState = new();
private EncoderState _backState = new();
public readonly MTLBuffer IndexBuffer => _currentState.IndexBuffer;
public readonly MTLIndexType IndexType => _currentState.IndexType;
public readonly ulong IndexBufferOffset => _currentState.IndexBufferOffset;
public readonly PrimitiveTopology Topology => _currentState.Topology;
public EncoderStateManager(MTLDevice device, Pipeline pipeline)
{
_device = device;
_pipeline = pipeline;
}
public void SwapStates()
{
(_currentState, _backState) = (_backState, _currentState);
if (_pipeline.CurrentEncoderType == EncoderType.Render)
{
_pipeline.EndCurrentPass();
}
}
public MTLRenderCommandEncoder CreateRenderCommandEncoder()
{
// Initialise Pass & State
var renderPassDescriptor = new MTLRenderPassDescriptor();
var renderPipelineDescriptor = new MTLRenderPipelineDescriptor();
for (int i = 0; i < EncoderState.MaxColorAttachments; i++)
{
if (_currentState.RenderTargets[i] != IntPtr.Zero)
{
var passAttachment = renderPassDescriptor.ColorAttachments.Object((ulong)i);
passAttachment.Texture = _currentState.RenderTargets[i];
passAttachment.LoadAction = MTLLoadAction.Load;
}
}
var depthAttachment = renderPassDescriptor.DepthAttachment;
var stencilAttachment = renderPassDescriptor.StencilAttachment;
if (_currentState.DepthStencil != IntPtr.Zero)
{
switch (_currentState.DepthStencil.PixelFormat)
{
// Depth Only Attachment
case MTLPixelFormat.Depth16Unorm:
case MTLPixelFormat.Depth32Float:
depthAttachment.Texture = _currentState.DepthStencil;
depthAttachment.LoadAction = MTLLoadAction.Load;
break;
// Stencil Only Attachment
case MTLPixelFormat.Stencil8:
stencilAttachment.Texture = _currentState.DepthStencil;
stencilAttachment.LoadAction = MTLLoadAction.Load;
break;
// Combined Attachment
case MTLPixelFormat.Depth24UnormStencil8:
case MTLPixelFormat.Depth32FloatStencil8:
depthAttachment.Texture = _currentState.DepthStencil;
depthAttachment.LoadAction = MTLLoadAction.Load;
var unpackedFormat = FormatTable.PackedStencilToXFormat(_currentState.DepthStencil.PixelFormat);
var stencilView = _currentState.DepthStencil.NewTextureView(unpackedFormat);
stencilAttachment.Texture = stencilView;
stencilAttachment.LoadAction = MTLLoadAction.Load;
break;
default:
Logger.Error?.PrintMsg(LogClass.Gpu, $"Unsupported Depth/Stencil Format: {_currentState.DepthStencil.PixelFormat}!");
break;
}
}
// Initialise Encoder
var renderCommandEncoder = _pipeline.CommandBuffer.RenderCommandEncoder(renderPassDescriptor);
// Mark all state as dirty to ensure it is set on the encoder
_currentState.Dirty.MarkAll();
// Rebind all the state
SetDepthClamp(renderCommandEncoder);
SetCullMode(renderCommandEncoder);
SetFrontFace(renderCommandEncoder);
SetViewports(renderCommandEncoder);
SetScissors(renderCommandEncoder);
SetVertexBuffers(renderCommandEncoder, _currentState.VertexBuffers);
SetBuffers(renderCommandEncoder, _currentState.UniformBuffers, true);
SetBuffers(renderCommandEncoder, _currentState.StorageBuffers, true);
SetTextureAndSampler(renderCommandEncoder, ShaderStage.Vertex, _currentState.VertexTextures, _currentState.VertexSamplers);
SetTextureAndSampler(renderCommandEncoder, ShaderStage.Fragment, _currentState.FragmentTextures, _currentState.FragmentSamplers);
return renderCommandEncoder;
}
public void RebindState(MTLRenderCommandEncoder renderCommandEncoder)
{
SetPipelineState(renderCommandEncoder);
SetDepthStencilState(renderCommandEncoder);
_currentState.Dirty = new();
}
private void SetPipelineState(MTLRenderCommandEncoder renderCommandEncoder) {
if (_currentState.Dirty.Pipeline)
{
var renderPipelineDescriptor = new MTLRenderPipelineDescriptor();
for (int i = 0; i < EncoderState.MaxColorAttachments; i++)
{
if (_currentState.RenderTargets[i] != IntPtr.Zero)
{
var pipelineAttachment = renderPipelineDescriptor.ColorAttachments.Object((ulong)i);
pipelineAttachment.PixelFormat = _currentState.RenderTargets[i].PixelFormat;
pipelineAttachment.SourceAlphaBlendFactor = MTLBlendFactor.SourceAlpha;
pipelineAttachment.DestinationAlphaBlendFactor = MTLBlendFactor.OneMinusSourceAlpha;
pipelineAttachment.SourceRGBBlendFactor = MTLBlendFactor.SourceAlpha;
pipelineAttachment.DestinationRGBBlendFactor = MTLBlendFactor.OneMinusSourceAlpha;
if (_currentState.BlendDescriptors.TryGetValue(i, out BlendDescriptor blendDescriptor))
{
pipelineAttachment.SetBlendingEnabled(blendDescriptor.Enable);
pipelineAttachment.AlphaBlendOperation = blendDescriptor.AlphaOp.Convert();
pipelineAttachment.RgbBlendOperation = blendDescriptor.ColorOp.Convert();
pipelineAttachment.SourceAlphaBlendFactor = blendDescriptor.AlphaSrcFactor.Convert();
pipelineAttachment.DestinationAlphaBlendFactor = blendDescriptor.AlphaDstFactor.Convert();
pipelineAttachment.SourceRGBBlendFactor = blendDescriptor.ColorSrcFactor.Convert();
pipelineAttachment.DestinationRGBBlendFactor = blendDescriptor.ColorDstFactor.Convert();
}
}
}
if (_currentState.DepthStencil != IntPtr.Zero)
{
switch (_currentState.DepthStencil.PixelFormat)
{
// Depth Only Attachment
case MTLPixelFormat.Depth16Unorm:
case MTLPixelFormat.Depth32Float:
renderPipelineDescriptor.DepthAttachmentPixelFormat = _currentState.DepthStencil.PixelFormat;
break;
// Stencil Only Attachment
case MTLPixelFormat.Stencil8:
renderPipelineDescriptor.StencilAttachmentPixelFormat = _currentState.DepthStencil.PixelFormat;
break;
// Combined Attachment
case MTLPixelFormat.Depth24UnormStencil8:
case MTLPixelFormat.Depth32FloatStencil8:
renderPipelineDescriptor.DepthAttachmentPixelFormat = _currentState.DepthStencil.PixelFormat;
renderPipelineDescriptor.StencilAttachmentPixelFormat = _currentState.DepthStencil.PixelFormat;
break;
default:
Logger.Error?.PrintMsg(LogClass.Gpu, $"Unsupported Depth/Stencil Format: {_currentState.DepthStencil.PixelFormat}!");
break;
}
}
renderPipelineDescriptor.VertexDescriptor = BuildVertexDescriptor(_currentState.VertexBuffers, _currentState.VertexAttribs);
if (_currentState.VertexFunction != null)
{
renderPipelineDescriptor.VertexFunction = _currentState.VertexFunction.Value;
}
else
{
return;
}
if (_currentState.FragmentFunction != null)
{
renderPipelineDescriptor.FragmentFunction = _currentState.FragmentFunction.Value;
}
var error = new NSError(IntPtr.Zero);
var pipelineState = _device.NewRenderPipelineState(renderPipelineDescriptor, ref error);
if (error != IntPtr.Zero)
{
Logger.Error?.PrintMsg(LogClass.Gpu, $"Failed to create Render Pipeline State: {StringHelper.String(error.LocalizedDescription)}");
}
renderCommandEncoder.SetRenderPipelineState(pipelineState);
renderCommandEncoder.SetBlendColor(
_currentState.BlendColor.Red,
_currentState.BlendColor.Green,
_currentState.BlendColor.Blue,
_currentState.BlendColor.Alpha);
}
}
public void UpdateIndexBuffer(BufferRange buffer, IndexType type)
{
if (buffer.Handle != BufferHandle.Null)
{
_currentState.IndexType = type.Convert();
_currentState.IndexBufferOffset = (ulong)buffer.Offset;
var handle = buffer.Handle;
_currentState.IndexBuffer = new(Unsafe.As<BufferHandle, IntPtr>(ref handle));
}
}
public void UpdatePrimitiveTopology(PrimitiveTopology topology)
{
_currentState.Topology = topology;
}
public void UpdateProgram(IProgram program)
{
Program prg = (Program)program;
if (prg.VertexFunction == IntPtr.Zero)
{
Logger.Error?.PrintMsg(LogClass.Gpu, "Invalid Vertex Function!");
return;
}
_currentState.VertexFunction = prg.VertexFunction;
_currentState.FragmentFunction = prg.FragmentFunction;
// Mark dirty
_currentState.Dirty.Pipeline = true;
}
public void UpdateRenderTargets(ITexture[] colors, ITexture depthStencil)
{
_currentState.RenderTargets = new MTLTexture[EncoderState.MaxColorAttachments];
for (int i = 0; i < colors.Length; i++)
{
if (colors[i] is not Texture tex)
{
continue;
}
_currentState.RenderTargets[i] = tex.MTLTexture;
}
if (depthStencil is Texture depthTexture)
{
_currentState.DepthStencil = depthTexture.MTLTexture;
}
// Requires recreating pipeline
if (_pipeline.CurrentEncoderType == EncoderType.Render)
{
_pipeline.EndCurrentPass();
}
}
public void UpdateVertexAttribs(ReadOnlySpan<VertexAttribDescriptor> vertexAttribs)
{
_currentState.VertexAttribs = vertexAttribs.ToArray();
// Mark dirty
_currentState.Dirty.Pipeline = true;
}
public void UpdateBlendDescriptors(int index, BlendDescriptor blend)
{
_currentState.BlendDescriptors[index] = blend;
_currentState.BlendColor = blend.BlendConstant;
}
// Inlineable
public void UpdateStencilState(StencilTestDescriptor stencilTest)
{
_currentState.BackFaceStencil = new MTLStencilDescriptor
{
StencilFailureOperation = stencilTest.BackSFail.Convert(),
DepthFailureOperation = stencilTest.BackDpFail.Convert(),
DepthStencilPassOperation = stencilTest.BackDpPass.Convert(),
StencilCompareFunction = stencilTest.BackFunc.Convert(),
ReadMask = (uint)stencilTest.BackFuncMask,
WriteMask = (uint)stencilTest.BackMask
};
_currentState.FrontFaceStencil = new MTLStencilDescriptor
{
StencilFailureOperation = stencilTest.FrontSFail.Convert(),
DepthFailureOperation = stencilTest.FrontDpFail.Convert(),
DepthStencilPassOperation = stencilTest.FrontDpPass.Convert(),
StencilCompareFunction = stencilTest.FrontFunc.Convert(),
ReadMask = (uint)stencilTest.FrontFuncMask,
WriteMask = (uint)stencilTest.FrontMask
};
_currentState.StencilTestEnabled = stencilTest.TestEnable;
var descriptor = new MTLDepthStencilDescriptor
{
DepthCompareFunction = _currentState.DepthCompareFunction,
DepthWriteEnabled = _currentState.DepthWriteEnabled
};
if (_currentState.StencilTestEnabled)
{
descriptor.BackFaceStencil = _currentState.BackFaceStencil;
descriptor.FrontFaceStencil = _currentState.FrontFaceStencil;
}
_currentState.DepthStencilState = _device.NewDepthStencilState(descriptor);
// Mark dirty
_currentState.Dirty.DepthStencil = true;
}
// Inlineable
public void UpdateDepthState(DepthTestDescriptor depthTest)
{
_currentState.DepthCompareFunction = depthTest.TestEnable ? depthTest.Func.Convert() : MTLCompareFunction.Always;
_currentState.DepthWriteEnabled = depthTest.WriteEnable;
var descriptor = new MTLDepthStencilDescriptor
{
DepthCompareFunction = _currentState.DepthCompareFunction,
DepthWriteEnabled = _currentState.DepthWriteEnabled
};
if (_currentState.StencilTestEnabled)
{
descriptor.BackFaceStencil = _currentState.BackFaceStencil;
descriptor.FrontFaceStencil = _currentState.FrontFaceStencil;
}
_currentState.DepthStencilState = _device.NewDepthStencilState(descriptor);
// Mark dirty
_currentState.Dirty.DepthStencil = true;
}
// Inlineable
public void UpdateDepthClamp(bool clamp)
{
_currentState.DepthClipMode = clamp ? MTLDepthClipMode.Clamp : MTLDepthClipMode.Clip;
// Inline update
if (_pipeline.CurrentEncoderType == EncoderType.Render && _pipeline.CurrentEncoder != null)
{
var renderCommandEncoder = new MTLRenderCommandEncoder(_pipeline.CurrentEncoder.Value);
SetDepthClamp(renderCommandEncoder);
}
}
// Inlineable
public void UpdateScissors(ReadOnlySpan<Rectangle<int>> regions)
{
int maxScissors = Math.Min(regions.Length, _currentState.Viewports.Length);
if (maxScissors == 0)
{
return;
}
_currentState.Scissors = new MTLScissorRect[maxScissors];
for (int i = 0; i < maxScissors; i++)
{
var region = regions[i];
_currentState.Scissors[i] = new MTLScissorRect
{
height = Math.Clamp((ulong)region.Height, 0, (ulong)_currentState.Viewports[i].height),
width = Math.Clamp((ulong)region.Width, 0, (ulong)_currentState.Viewports[i].width),
x = (ulong)region.X,
y = (ulong)region.Y
};
}
// Inline update
if (_pipeline.CurrentEncoderType == EncoderType.Render && _pipeline.CurrentEncoder != null)
{
var renderCommandEncoder = new MTLRenderCommandEncoder(_pipeline.CurrentEncoder.Value);
SetScissors(renderCommandEncoder);
}
}
// Inlineable
public void UpdateViewports(ReadOnlySpan<Viewport> viewports)
{
static float Clamp(float value)
{
return Math.Clamp(value, 0f, 1f);
}
_currentState.Viewports = new MTLViewport[viewports.Length];
for (int i = 0; i < viewports.Length; i++)
{
var viewport = viewports[i];
_currentState.Viewports[i] = new MTLViewport
{
originX = viewport.Region.X,
originY = viewport.Region.Y,
width = viewport.Region.Width,
height = viewport.Region.Height,
znear = Clamp(viewport.DepthNear),
zfar = Clamp(viewport.DepthFar)
};
}
// Inline update
if (_pipeline.CurrentEncoderType == EncoderType.Render && _pipeline.CurrentEncoder != null)
{
var renderCommandEncoder = new MTLRenderCommandEncoder(_pipeline.CurrentEncoder.Value);
SetViewports(renderCommandEncoder);
}
}
public void UpdateVertexBuffers(ReadOnlySpan<VertexBufferDescriptor> vertexBuffers)
{
_currentState.VertexBuffers = vertexBuffers.ToArray();
// Inline update
if (_pipeline.CurrentEncoderType == EncoderType.Render && _pipeline.CurrentEncoder != null)
{
var renderCommandEncoder = new MTLRenderCommandEncoder(_pipeline.CurrentEncoder.Value);
SetVertexBuffers(renderCommandEncoder, _currentState.VertexBuffers);
}
// Mark dirty
_currentState.Dirty.Pipeline = true;
}
// Inlineable
public void UpdateUniformBuffers(ReadOnlySpan<BufferAssignment> buffers)
{
_currentState.UniformBuffers = [];
foreach (BufferAssignment buffer in buffers)
{
if (buffer.Range.Size != 0)
{
_currentState.UniformBuffers.Add(new BufferInfo
{
Handle = buffer.Range.Handle.ToIntPtr(),
Offset = buffer.Range.Offset,
Index = buffer.Binding
});
}
}
// Inline update
if (_pipeline.CurrentEncoderType == EncoderType.Render && _pipeline.CurrentEncoder != null)
{
var renderCommandEncoder = new MTLRenderCommandEncoder(_pipeline.CurrentEncoder.Value);
SetBuffers(renderCommandEncoder, _currentState.UniformBuffers, true);
}
}
// Inlineable
public void UpdateStorageBuffers(ReadOnlySpan<BufferAssignment> buffers)
{
_currentState.StorageBuffers = [];
foreach (BufferAssignment buffer in buffers)
{
if (buffer.Range.Size != 0)
{
// TODO: DONT offset the binding by 15
_currentState.StorageBuffers.Add(new BufferInfo
{
Handle = buffer.Range.Handle.ToIntPtr(),
Offset = buffer.Range.Offset,
Index = buffer.Binding + 15
});
}
}
// Inline update
if (_pipeline.CurrentEncoderType == EncoderType.Render && _pipeline.CurrentEncoder != null)
{
var renderCommandEncoder = new MTLRenderCommandEncoder(_pipeline.CurrentEncoder.Value);
SetBuffers(renderCommandEncoder, _currentState.StorageBuffers, true);
}
}
// Inlineable
public void UpdateCullMode(bool enable, Face face)
{
_currentState.CullMode = enable ? face.Convert() : MTLCullMode.None;
// Inline update
if (_pipeline.CurrentEncoderType == EncoderType.Render && _pipeline.CurrentEncoder != null)
{
var renderCommandEncoder = new MTLRenderCommandEncoder(_pipeline.CurrentEncoder.Value);
SetCullMode(renderCommandEncoder);
}
}
// Inlineable
public void UpdateFrontFace(FrontFace frontFace)
{
_currentState.Winding = frontFace.Convert();
// Inline update
if (_pipeline.CurrentEncoderType == EncoderType.Render && _pipeline.CurrentEncoder != null)
{
var renderCommandEncoder = new MTLRenderCommandEncoder(_pipeline.CurrentEncoder.Value);
SetFrontFace(renderCommandEncoder);
}
}
// Inlineable
public readonly void UpdateTextureAndSampler(ShaderStage stage, ulong binding, MTLTexture texture, MTLSamplerState sampler)
{
switch (stage)
{
case ShaderStage.Fragment:
_currentState.FragmentTextures[binding] = texture;
_currentState.FragmentSamplers[binding] = sampler;
break;
case ShaderStage.Vertex:
_currentState.VertexTextures[binding] = texture;
_currentState.VertexSamplers[binding] = sampler;
break;
}
if (_pipeline.CurrentEncoderType == EncoderType.Render && _pipeline.CurrentEncoder != null)
{
var renderCommandEncoder = new MTLRenderCommandEncoder(_pipeline.CurrentEncoder.Value);
// TODO: Only update the new ones
SetTextureAndSampler(renderCommandEncoder, ShaderStage.Vertex, _currentState.VertexTextures, _currentState.VertexSamplers);
SetTextureAndSampler(renderCommandEncoder, ShaderStage.Fragment, _currentState.FragmentTextures, _currentState.FragmentSamplers);
}
}
private void SetDepthStencilState(MTLRenderCommandEncoder renderCommandEncoder)
{
if (_currentState.Dirty.DepthStencil)
{
if (_currentState.DepthStencilState != null)
{
renderCommandEncoder.SetDepthStencilState(_currentState.DepthStencilState.Value);
}
}
}
private void SetDepthClamp(MTLRenderCommandEncoder renderCommandEncoder)
{
renderCommandEncoder.SetDepthClipMode(_currentState.DepthClipMode);
}
private unsafe void SetScissors(MTLRenderCommandEncoder renderCommandEncoder)
{
if (_currentState.Scissors.Length > 0)
{
fixed (MTLScissorRect* pMtlScissors = _currentState.Scissors)
{
renderCommandEncoder.SetScissorRects((IntPtr)pMtlScissors, (ulong)_currentState.Scissors.Length);
}
}
}
private unsafe void SetViewports(MTLRenderCommandEncoder renderCommandEncoder)
{
if (_currentState.Viewports.Length > 0)
{
fixed (MTLViewport* pMtlViewports = _currentState.Viewports)
{
renderCommandEncoder.SetViewports((IntPtr)pMtlViewports, (ulong)_currentState.Viewports.Length);
}
}
}
private MTLVertexDescriptor BuildVertexDescriptor(VertexBufferDescriptor[] bufferDescriptors, VertexAttribDescriptor[] attribDescriptors)
{
var vertexDescriptor = new MTLVertexDescriptor();
uint indexMask = 0;
// TODO: Handle 'zero' buffers
for (int i = 0; i < attribDescriptors.Length; i++)
{
var attrib = vertexDescriptor.Attributes.Object((ulong)i);
attrib.Format = attribDescriptors[i].Format.Convert();
indexMask |= 1u << attribDescriptors[i].BufferIndex;
attrib.BufferIndex = (ulong)attribDescriptors[i].BufferIndex;
attrib.Offset = (ulong)attribDescriptors[i].Offset;
}
for (int i = 0; i < bufferDescriptors.Length; i++)
{
var layout = vertexDescriptor.Layouts.Object((ulong)i);
layout.Stride = (indexMask & (1u << i)) != 0 ? (ulong)bufferDescriptors[i].Stride : 0;
}
return vertexDescriptor;
}
private void SetVertexBuffers(MTLRenderCommandEncoder renderCommandEncoder, VertexBufferDescriptor[] bufferDescriptors)
{
var buffers = new List<BufferInfo>();
for (int i = 0; i < bufferDescriptors.Length; i++)
{
if (bufferDescriptors[i].Buffer.Handle.ToIntPtr() != IntPtr.Zero)
{
buffers.Add(new BufferInfo
{
Handle = bufferDescriptors[i].Buffer.Handle.ToIntPtr(),
Offset = bufferDescriptors[i].Buffer.Offset,
Index = i
});
}
}
SetBuffers(renderCommandEncoder, buffers);
}
private void SetBuffers(MTLRenderCommandEncoder renderCommandEncoder, List<BufferInfo> buffers, bool fragment = false)
{
foreach (var buffer in buffers)
{
renderCommandEncoder.SetVertexBuffer(new MTLBuffer(buffer.Handle), (ulong)buffer.Offset, (ulong)buffer.Index);
if (fragment)
{
renderCommandEncoder.SetFragmentBuffer(new MTLBuffer(buffer.Handle), (ulong)buffer.Offset, (ulong)buffer.Index);
}
}
}
private void SetCullMode(MTLRenderCommandEncoder renderCommandEncoder)
{
renderCommandEncoder.SetCullMode(_currentState.CullMode);
}
private void SetFrontFace(MTLRenderCommandEncoder renderCommandEncoder)
{
renderCommandEncoder.SetFrontFacingWinding(_currentState.Winding);
}
private void SetTextureAndSampler(MTLRenderCommandEncoder renderCommandEncoder, ShaderStage stage, Dictionary<ulong, MTLTexture> textures, Dictionary<ulong, MTLSamplerState> samplers)
{
foreach (var texture in textures)
{
switch (stage)
{
case ShaderStage.Vertex:
renderCommandEncoder.SetVertexTexture(texture.Value, texture.Key);
break;
case ShaderStage.Fragment:
renderCommandEncoder.SetFragmentTexture(texture.Value, texture.Key);
break;
}
}
foreach (var sampler in samplers)
{
switch (stage)
{
case ShaderStage.Vertex:
renderCommandEncoder.SetVertexSamplerState(sampler.Value, sampler.Key);
break;
case ShaderStage.Fragment:
renderCommandEncoder.SetFragmentSamplerState(sampler.Value, sampler.Key);
break;
}
}
}
}
}