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Code Issues Releases Activity

Vulkan: Don't create preload command buffer outside a render pass (#3864)

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* Vulkan: Don't create preload buffer outside a render pass

The preload command buffer is used to avoid render pass splits and barriers when updating buffer data. However, when a render pass is not active (for example, at the start of a pass, or during compute invocations) buffer uploads can be performed at any time, so the optimization isn't as useful.

This PR makes it so that the preload command buffer is only used for buffer updates outside of a render pass. It's still used for textures as I don't want to shake things up right now regarding how the preload buffer is obtained before some other changes, and texture updates are a lot rarer anyways.

Improves performance slightly in Pokemon Scarlet/Violet (43 -> 48), as it was switching to compute, writing a bunch of buffers inline, then dispatching, then flushing commands... It uses 1 command buffer instead of 2 every time it does this now. Maybe it would be nice to find a faster way to sync without creating so many command buffers in a short period of time.

* Address feedback
This commit is contained in:
riperiperi 2022-11-18 14:58:56 +00:00 committed by GitHub
parent 187372cbde
commit 131baebe2a
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 17 additions and 9 deletions
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5
Ryujinx.Graphics.Vulkan/BufferHolder.cs
View file

@ -210,7 +210,10 @@ namespace Ryujinx.Graphics.Vulkan
}
}
if (cbs != null && !(_buffer.HasCommandBufferDependency(cbs.Value) && _waitable.IsBufferRangeInUse(cbs.Value.CommandBufferIndex, offset, dataSize)))
if (cbs != null &&
_gd.PipelineInternal.RenderPassActive &&
!(_buffer.HasCommandBufferDependency(cbs.Value) &&
_waitable.IsBufferRangeInUse(cbs.Value.CommandBufferIndex, offset, dataSize)))
{
// If the buffer hasn't been used on the command buffer yet, try to preload the data.
// This avoids ending and beginning render passes on each buffer data upload.

15
Ryujinx.Graphics.Vulkan/PipelineBase.cs
View file

@ -49,7 +49,6 @@ namespace Ryujinx.Graphics.Vulkan
private Auto<DisposableFramebuffer> _framebuffer;
private Auto<DisposableRenderPass> _renderPass;
private int _writtenAttachmentCount;
private bool _renderPassActive;
private readonly DescriptorSetUpdater _descriptorSetUpdater;
@ -73,6 +72,7 @@ namespace Ryujinx.Graphics.Vulkan
private PipelineColorBlendAttachmentState[] _storedBlend;
public ulong DrawCount { get; private set; }
public bool RenderPassActive { get; private set; }
public unsafe PipelineBase(VulkanRenderer gd, Device device)
{
@ -838,6 +838,11 @@ namespace Ryujinx.Graphics.Vulkan
stages.CopyTo(_newState.Stages.AsSpan().Slice(0, stages.Length));
SignalStateChange();
if (_program.IsCompute)
{
EndRenderPass();
}
}
public void Specialize<T>(in T data) where T : unmanaged
@ -1451,7 +1456,7 @@ namespace Ryujinx.Graphics.Vulkan
private unsafe void BeginRenderPass()
{
if (!_renderPassActive)
if (!RenderPassActive)
{
var renderArea = new Rect2D(null, new Extent2D(FramebufferParams.Width, FramebufferParams.Height));
var clearValue = new ClearValue();
@ -1467,18 +1472,18 @@ namespace Ryujinx.Graphics.Vulkan
};
Gd.Api.CmdBeginRenderPass(CommandBuffer, renderPassBeginInfo, SubpassContents.Inline);
_renderPassActive = true;
RenderPassActive = true;
}
}
public void EndRenderPass()
{
if (_renderPassActive)
if (RenderPassActive)
{
PauseTransformFeedbackInternal();
Gd.Api.CmdEndRenderPass(CommandBuffer);
SignalRenderPassEnd();
_renderPassActive = false;
RenderPassActive = false;
}
}

6
Ryujinx.Graphics.Vulkan/ShaderCollection.cs
View file

@ -19,6 +19,7 @@ namespace Ryujinx.Graphics.Vulkan
public bool HasMinimalLayout { get; }
public bool UsePushDescriptors { get; }
public bool IsCompute { get; }
public uint Stages { get; }
@ -47,7 +48,6 @@ namespace Ryujinx.Graphics.Vulkan
private VulkanRenderer _gd;
private Device _device;
private bool _initialized;
private bool _isCompute;
private ProgramPipelineState _state;
private DisposableRenderPass _dummyRenderPass;
@ -91,7 +91,7 @@ namespace Ryujinx.Graphics.Vulkan
if (shader.StageFlags == ShaderStageFlags.ShaderStageComputeBit)
{
_isCompute = true;
IsCompute = true;
}
internalShaders[i] = shader;
@ -163,7 +163,7 @@ namespace Ryujinx.Graphics.Vulkan
try
{
if (_isCompute)
if (IsCompute)
{
CreateBackgroundComputePipeline();
}