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using Ryujinx.Common;
using Ryujinx.Graphics.GAL;
using Ryujinx.Graphics.Shader;
using Ryujinx.Graphics.Shader.Translation;
using Silk.NET.Vulkan;
using System;
using Extent2D = Ryujinx.Graphics.GAL.Extents2D;
using Format = Silk.NET.Vulkan.Format;
using SamplerCreateInfo = Ryujinx.Graphics.GAL.SamplerCreateInfo;
namespace Ryujinx.Graphics.Vulkan.Effects
{
internal class FsrScalingFilter : IScalingFilter
{
private readonly VulkanRenderer _renderer;
private PipelineHelperShader _pipeline;
private ISampler _sampler;
private ShaderCollection _scalingProgram;
private ShaderCollection _sharpeningProgram;
private float _sharpeningLevel = 1;
private Device _device;
private TextureView _intermediaryTexture;
public float Level
{
get => _sharpeningLevel;
set
{
_sharpeningLevel = MathF.Max(0.01f, value);
}
}
public FsrScalingFilter(VulkanRenderer renderer, Device device)
{
_device = device;
_renderer = renderer;
Initialize();
}
public void Dispose()
{
_pipeline.Dispose();
_scalingProgram.Dispose();
_sharpeningProgram.Dispose();
_sampler.Dispose();
_intermediaryTexture?.Dispose();
}
public void Initialize()
{
_pipeline = new PipelineHelperShader(_renderer, _device);
_pipeline.Initialize();
var scalingShader = EmbeddedResources.Read("Ryujinx.Graphics.Vulkan/Effects/Shaders/FsrScaling.spv");
var sharpeningShader = EmbeddedResources.Read("Ryujinx.Graphics.Vulkan/Effects/Shaders/FsrSharpening.spv");
var scalingResourceLayout = new ResourceLayoutBuilder()
.Add(ResourceStages.Compute, ResourceType.UniformBuffer, 2)
.Add(ResourceStages.Compute, ResourceType.TextureAndSampler, 1)
.Add(ResourceStages.Compute, ResourceType.Image, 0, true).Build();
var sharpeningResourceLayout = new ResourceLayoutBuilder()
.Add(ResourceStages.Compute, ResourceType.UniformBuffer, 2)
.Add(ResourceStages.Compute, ResourceType.UniformBuffer, 3)
.Add(ResourceStages.Compute, ResourceType.UniformBuffer, 4)
.Add(ResourceStages.Compute, ResourceType.TextureAndSampler, 1)
.Add(ResourceStages.Compute, ResourceType.Image, 0, true).Build();
_sampler = _renderer.CreateSampler(SamplerCreateInfo.Create(MinFilter.Linear, MagFilter.Linear));
_scalingProgram = _renderer.CreateProgramWithMinimalLayout(new[]
{
new ShaderSource(scalingShader, ShaderStage.Compute, TargetLanguage.Spirv),
}, scalingResourceLayout);
_sharpeningProgram = _renderer.CreateProgramWithMinimalLayout(new[]
{
new ShaderSource(sharpeningShader, ShaderStage.Compute, TargetLanguage.Spirv),
}, sharpeningResourceLayout);
}
public void Run(
TextureView view,
CommandBufferScoped cbs,
Auto<DisposableImageView> destinationTexture,
Format format,
int width,
int height,
Extent2D source,
Extent2D destination)
{
if (_intermediaryTexture == null
|| _intermediaryTexture.Info.Width != width
|| _intermediaryTexture.Info.Height != height
|| !_intermediaryTexture.Info.Equals(view.Info))
{
var originalInfo = view.Info;
var info = new TextureCreateInfo(
width,
height,
originalInfo.Depth,
originalInfo.Levels,
originalInfo.Samples,
originalInfo.BlockWidth,
originalInfo.BlockHeight,
originalInfo.BytesPerPixel,
originalInfo.Format,
originalInfo.DepthStencilMode,
originalInfo.Target,
originalInfo.SwizzleR,
originalInfo.SwizzleG,
originalInfo.SwizzleB,
originalInfo.SwizzleA);
_intermediaryTexture?.Dispose();
_intermediaryTexture = _renderer.CreateTexture(info) as TextureView;
}
_pipeline.SetCommandBuffer(cbs);
_pipeline.SetProgram(_scalingProgram);
_pipeline.SetTextureAndSampler(ShaderStage.Compute, 1, view, _sampler);
float srcWidth = Math.Abs(source.X2 - source.X1);
float srcHeight = Math.Abs(source.Y2 - source.Y1);
float scaleX = srcWidth / view.Width;
float scaleY = srcHeight / view.Height;
ReadOnlySpan<float> dimensionsBuffer = stackalloc float[]
{
source.X1,
source.X2,
source.Y1,
source.Y2,
destination.X1,
destination.X2,
destination.Y1,
destination.Y2,
scaleX,
scaleY,
};
int rangeSize = dimensionsBuffer.Length * sizeof(float);
using var buffer = _renderer.BufferManager.ReserveOrCreate(_renderer, cbs, rangeSize);
buffer.Holder.SetDataUnchecked(buffer.Offset, dimensionsBuffer);
ReadOnlySpan<float> sharpeningBufferData = stackalloc float[] { 1.5f - (Level * 0.01f * 1.5f) };
using var sharpeningBuffer = _renderer.BufferManager.ReserveOrCreate(_renderer, cbs, sizeof(float));
sharpeningBuffer.Holder.SetDataUnchecked(sharpeningBuffer.Offset, sharpeningBufferData);
int threadGroupWorkRegionDim = 16;
int dispatchX = (width + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
int dispatchY = (height + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
_pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(2, buffer.Range) });
_pipeline.SetImage(ShaderStage.Compute, 0, _intermediaryTexture.GetView(FormatTable.ConvertRgba8SrgbToUnorm(view.Info.Format)));
_pipeline.DispatchCompute(dispatchX, dispatchY, 1);
_pipeline.ComputeBarrier();
// Sharpening pass
_pipeline.SetProgram(_sharpeningProgram);
_pipeline.SetTextureAndSampler(ShaderStage.Compute, 1, _intermediaryTexture, _sampler);
_pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(4, sharpeningBuffer.Range) });
_pipeline.SetImage(0, destinationTexture);
_pipeline.DispatchCompute(dispatchX, dispatchY, 1);
_pipeline.ComputeBarrier();
_pipeline.Finish();
}
}
}
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