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* GPU: Swap bindings array instead of copying Reduces work on UpdateShaderState. Now the cost is a few reference moves for arrays, rather than copying data. Downside: bindings arrays are no longer readonly. * Micro optimisation * Add missing docs * Address Feedback
104 lines
3.8 KiB
C#
104 lines
3.8 KiB
C#
using Ryujinx.Graphics.GAL;
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using Ryujinx.Graphics.Gpu.Engine;
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using Ryujinx.Graphics.Gpu.Image;
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using Ryujinx.Graphics.Shader;
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using System;
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using System.Linq;
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namespace Ryujinx.Graphics.Gpu.Shader
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{
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/// <summary>
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/// A collection of shader bindings ready for insertion into the buffer and texture managers.
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/// </summary>
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internal class CachedShaderBindings
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{
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public TextureBindingInfo[][] TextureBindings { get; }
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public TextureBindingInfo[][] ImageBindings { get; }
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public BufferDescriptor[][] ConstantBufferBindings { get; }
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public BufferDescriptor[][] StorageBufferBindings { get; }
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public int MaxTextureBinding { get; }
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public int MaxImageBinding { get; }
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/// <summary>
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/// Create a new cached shader bindings collection.
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/// </summary>
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/// <param name="isCompute">Whether the shader is for compute</param>
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/// <param name="stages">The stages used by the shader</param>
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public CachedShaderBindings(bool isCompute, CachedShaderStage[] stages)
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{
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int stageCount = isCompute ? 1 : Constants.ShaderStages;
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TextureBindings = new TextureBindingInfo[stageCount][];
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ImageBindings = new TextureBindingInfo[stageCount][];
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ConstantBufferBindings = new BufferDescriptor[stageCount][];
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StorageBufferBindings = new BufferDescriptor[stageCount][];
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int maxTextureBinding = -1;
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int maxImageBinding = -1;
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int offset = isCompute ? 0 : 1;
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for (int i = 0; i < stageCount; i++)
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{
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CachedShaderStage stage = stages[i + offset];
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if (stage == null)
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{
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TextureBindings[i] = Array.Empty<TextureBindingInfo>();
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ImageBindings[i] = Array.Empty<TextureBindingInfo>();
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ConstantBufferBindings[i] = Array.Empty<BufferDescriptor>();
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StorageBufferBindings[i] = Array.Empty<BufferDescriptor>();
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continue;
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}
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TextureBindings[i] = stage.Info.Textures.Select(descriptor =>
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{
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Target target = ShaderTexture.GetTarget(descriptor.Type);
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var result = new TextureBindingInfo(
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target,
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descriptor.Binding,
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descriptor.CbufSlot,
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descriptor.HandleIndex,
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descriptor.Flags);
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if (descriptor.Binding > maxTextureBinding)
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{
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maxTextureBinding = descriptor.Binding;
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}
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return result;
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}).ToArray();
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ImageBindings[i] = stage.Info.Images.Select(descriptor =>
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{
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Target target = ShaderTexture.GetTarget(descriptor.Type);
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Format format = ShaderTexture.GetFormat(descriptor.Format);
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var result = new TextureBindingInfo(
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target,
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format,
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descriptor.Binding,
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descriptor.CbufSlot,
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descriptor.HandleIndex,
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descriptor.Flags);
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if (descriptor.Binding > maxImageBinding)
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{
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maxImageBinding = descriptor.Binding;
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}
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return result;
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}).ToArray();
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ConstantBufferBindings[i] = stage.Info.CBuffers.ToArray();
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StorageBufferBindings[i] = stage.Info.SBuffers.ToArray();
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}
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MaxTextureBinding = maxTextureBinding;
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MaxImageBinding = maxImageBinding;
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}
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}
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}
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