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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 AreaScalingFilter : IScalingFilter
{
private readonly VulkanRenderer _renderer;
private PipelineHelperShader _pipeline;
private ISampler _sampler;
private ShaderCollection _scalingProgram;
private Device _device;
public float Level { get; set; }
public AreaScalingFilter(VulkanRenderer renderer, Device device)
{
_device = device;
_renderer = renderer;
Initialize();
}
public void Dispose()
{
_pipeline.Dispose();
_scalingProgram.Dispose();
_sampler.Dispose();
}
public void Initialize()
{
_pipeline = new PipelineHelperShader(_renderer, _device);
_pipeline.Initialize();
var scalingShader = EmbeddedResources.Read("Ryujinx.Graphics.Vulkan/Effects/Shaders/AreaScaling.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();
_sampler = _renderer.CreateSampler(SamplerCreateInfo.Create(MinFilter.Linear, MagFilter.Linear));
_scalingProgram = _renderer.CreateProgramWithMinimalLayout(new[]
{
new ShaderSource(scalingShader, ShaderStage.Compute, TargetLanguage.Spirv),
}, scalingResourceLayout);
}
public void Run(
TextureView view,
CommandBufferScoped cbs,
Auto<DisposableImageView> destinationTexture,
Format format,
int width,
int height,
Extent2D source,
Extent2D destination)
{
_pipeline.SetCommandBuffer(cbs);
_pipeline.SetProgram(_scalingProgram);
_pipeline.SetTextureAndSampler(ShaderStage.Compute, 1, view, _sampler);
ReadOnlySpan<float> dimensionsBuffer = stackalloc float[]
{
source.X1,
source.X2,
source.Y1,
source.Y2,
destination.X1,
destination.X2,
destination.Y1,
destination.Y2,
};
int rangeSize = dimensionsBuffer.Length * sizeof(float);
using var buffer = _renderer.BufferManager.ReserveOrCreate(_renderer, cbs, rangeSize);
buffer.Holder.SetDataUnchecked(buffer.Offset, dimensionsBuffer);
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(0, destinationTexture);
_pipeline.DispatchCompute(dispatchX, dispatchY, 1);
_pipeline.ComputeBarrier();
_pipeline.Finish();
}
}
}
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