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ryujinx-final/Ryujinx.Graphics.Vulkan/BufferHolder.cs
riperiperi 131baebe2a
Vulkan: Don't create preload command buffer outside a render pass (#3864)
* 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
2022-11-18 14:58:56 +00:00

512 lines
17 KiB
C#

using Ryujinx.Graphics.GAL;
using Silk.NET.Vulkan;
using System;
using System.Runtime.CompilerServices;
using VkBuffer = Silk.NET.Vulkan.Buffer;
using VkFormat = Silk.NET.Vulkan.Format;
namespace Ryujinx.Graphics.Vulkan
{
class BufferHolder : IDisposable
{
private const int MaxUpdateBufferSize = 0x10000;
public const AccessFlags DefaultAccessFlags =
AccessFlags.AccessIndirectCommandReadBit |
AccessFlags.AccessShaderReadBit |
AccessFlags.AccessShaderWriteBit |
AccessFlags.AccessTransferReadBit |
AccessFlags.AccessTransferWriteBit |
AccessFlags.AccessUniformReadBit;
private readonly VulkanRenderer _gd;
private readonly Device _device;
private readonly MemoryAllocation _allocation;
private readonly Auto<DisposableBuffer> _buffer;
private readonly Auto<MemoryAllocation> _allocationAuto;
private readonly ulong _bufferHandle;
private CacheByRange<BufferHolder> _cachedConvertedBuffers;
public int Size { get; }
private IntPtr _map;
private readonly MultiFenceHolder _waitable;
private bool _lastAccessIsWrite;
public BufferHolder(VulkanRenderer gd, Device device, VkBuffer buffer, MemoryAllocation allocation, int size)
{
_gd = gd;
_device = device;
_allocation = allocation;
_allocationAuto = new Auto<MemoryAllocation>(allocation);
_waitable = new MultiFenceHolder(size);
_buffer = new Auto<DisposableBuffer>(new DisposableBuffer(gd.Api, device, buffer), _waitable, _allocationAuto);
_bufferHandle = buffer.Handle;
Size = size;
_map = allocation.HostPointer;
}
public unsafe Auto<DisposableBufferView> CreateView(VkFormat format, int offset, int size)
{
var bufferViewCreateInfo = new BufferViewCreateInfo()
{
SType = StructureType.BufferViewCreateInfo,
Buffer = new VkBuffer(_bufferHandle),
Format = format,
Offset = (uint)offset,
Range = (uint)size
};
_gd.Api.CreateBufferView(_device, bufferViewCreateInfo, null, out var bufferView).ThrowOnError();
return new Auto<DisposableBufferView>(new DisposableBufferView(_gd.Api, _device, bufferView), _waitable, _buffer);
}
public unsafe void InsertBarrier(CommandBuffer commandBuffer, bool isWrite)
{
// If the last access is write, we always need a barrier to be sure we will read or modify
// the correct data.
// If the last access is read, and current one is a write, we need to wait until the
// read finishes to avoid overwriting data still in use.
// Otherwise, if the last access is a read and the current one too, we don't need barriers.
bool needsBarrier = isWrite || _lastAccessIsWrite;
_lastAccessIsWrite = isWrite;
if (needsBarrier)
{
MemoryBarrier memoryBarrier = new MemoryBarrier()
{
SType = StructureType.MemoryBarrier,
SrcAccessMask = DefaultAccessFlags,
DstAccessMask = DefaultAccessFlags
};
_gd.Api.CmdPipelineBarrier(
commandBuffer,
PipelineStageFlags.PipelineStageAllCommandsBit,
PipelineStageFlags.PipelineStageAllCommandsBit,
DependencyFlags.DependencyDeviceGroupBit,
1,
memoryBarrier,
0,
null,
0,
null);
}
}
public Auto<DisposableBuffer> GetBuffer()
{
return _buffer;
}
public Auto<DisposableBuffer> GetBuffer(CommandBuffer commandBuffer, bool isWrite = false)
{
if (isWrite)
{
SignalWrite(0, Size);
}
return _buffer;
}
public Auto<DisposableBuffer> GetBuffer(CommandBuffer commandBuffer, int offset, int size, bool isWrite = false)
{
if (isWrite)
{
SignalWrite(offset, size);
}
return _buffer;
}
public void SignalWrite(int offset, int size)
{
if (offset == 0 && size == Size)
{
_cachedConvertedBuffers.Clear();
}
else
{
_cachedConvertedBuffers.ClearRange(offset, size);
}
}
public BufferHandle GetHandle()
{
var handle = _bufferHandle;
return Unsafe.As<ulong, BufferHandle>(ref handle);
}
public unsafe IntPtr Map(int offset, int mappingSize)
{
return _map;
}
public unsafe ReadOnlySpan<byte> GetData(int offset, int size)
{
if (_map != IntPtr.Zero)
{
return GetDataStorage(offset, size);
}
else
{
BackgroundResource resource = _gd.BackgroundResources.Get();
if (_gd.CommandBufferPool.OwnedByCurrentThread)
{
_gd.FlushAllCommands();
return resource.GetFlushBuffer().GetBufferData(_gd.CommandBufferPool, this, offset, size);
}
else
{
return resource.GetFlushBuffer().GetBufferData(resource.GetPool(), this, offset, size);
}
}
}
public unsafe Span<byte> GetDataStorage(int offset, int size)
{
int mappingSize = Math.Min(size, Size - offset);
if (_map != IntPtr.Zero)
{
return new Span<byte>((void*)(_map + offset), mappingSize);
}
throw new InvalidOperationException("The buffer is not host mapped.");
}
public unsafe void SetData(int offset, ReadOnlySpan<byte> data, CommandBufferScoped? cbs = null, Action endRenderPass = null)
{
int dataSize = Math.Min(data.Length, Size - offset);
if (dataSize == 0)
{
return;
}
if (_map != IntPtr.Zero)
{
// If persistently mapped, set the data directly if the buffer is not currently in use.
bool isRented = _buffer.HasRentedCommandBufferDependency(_gd.CommandBufferPool);
// If the buffer is rented, take a little more time and check if the use overlaps this handle.
bool needsFlush = isRented && _waitable.IsBufferRangeInUse(offset, dataSize);
if (!needsFlush)
{
WaitForFences(offset, dataSize);
data.Slice(0, dataSize).CopyTo(new Span<byte>((void*)(_map + offset), dataSize));
SignalWrite(offset, dataSize);
return;
}
}
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.
cbs = _gd.PipelineInternal.GetPreloadCommandBuffer();
endRenderPass = null;
}
if (cbs == null ||
!VulkanConfiguration.UseFastBufferUpdates ||
data.Length > MaxUpdateBufferSize ||
!TryPushData(cbs.Value, endRenderPass, offset, data))
{
_gd.BufferManager.StagingBuffer.PushData(_gd.CommandBufferPool, cbs, endRenderPass, this, offset, data);
}
}
public unsafe void SetDataUnchecked(int offset, ReadOnlySpan<byte> data)
{
int dataSize = Math.Min(data.Length, Size - offset);
if (dataSize == 0)
{
return;
}
if (_map != IntPtr.Zero)
{
data.Slice(0, dataSize).CopyTo(new Span<byte>((void*)(_map + offset), dataSize));
}
else
{
_gd.BufferManager.StagingBuffer.PushData(_gd.CommandBufferPool, null, null, this, offset, data);
}
}
public void SetDataInline(CommandBufferScoped cbs, Action endRenderPass, int dstOffset, ReadOnlySpan<byte> data)
{
if (!TryPushData(cbs, endRenderPass, dstOffset, data))
{
throw new ArgumentException($"Invalid offset 0x{dstOffset:X} or data size 0x{data.Length:X}.");
}
}
private unsafe bool TryPushData(CommandBufferScoped cbs, Action endRenderPass, int dstOffset, ReadOnlySpan<byte> data)
{
if ((dstOffset & 3) != 0 || (data.Length & 3) != 0)
{
return false;
}
endRenderPass?.Invoke();
var dstBuffer = GetBuffer(cbs.CommandBuffer, dstOffset, data.Length, true).Get(cbs, dstOffset, data.Length).Value;
InsertBufferBarrier(
_gd,
cbs.CommandBuffer,
dstBuffer,
BufferHolder.DefaultAccessFlags,
AccessFlags.AccessTransferWriteBit,
PipelineStageFlags.PipelineStageAllCommandsBit,
PipelineStageFlags.PipelineStageTransferBit,
dstOffset,
data.Length);
fixed (byte* pData = data)
{
for (ulong offset = 0; offset < (ulong)data.Length;)
{
ulong size = Math.Min(MaxUpdateBufferSize, (ulong)data.Length - offset);
_gd.Api.CmdUpdateBuffer(cbs.CommandBuffer, dstBuffer, (ulong)dstOffset + offset, size, pData + offset);
offset += size;
}
}
InsertBufferBarrier(
_gd,
cbs.CommandBuffer,
dstBuffer,
AccessFlags.AccessTransferWriteBit,
BufferHolder.DefaultAccessFlags,
PipelineStageFlags.PipelineStageTransferBit,
PipelineStageFlags.PipelineStageAllCommandsBit,
dstOffset,
data.Length);
return true;
}
public static unsafe void Copy(
VulkanRenderer gd,
CommandBufferScoped cbs,
Auto<DisposableBuffer> src,
Auto<DisposableBuffer> dst,
int srcOffset,
int dstOffset,
int size)
{
var srcBuffer = src.Get(cbs, srcOffset, size).Value;
var dstBuffer = dst.Get(cbs, dstOffset, size).Value;
InsertBufferBarrier(
gd,
cbs.CommandBuffer,
dstBuffer,
BufferHolder.DefaultAccessFlags,
AccessFlags.AccessTransferWriteBit,
PipelineStageFlags.PipelineStageAllCommandsBit,
PipelineStageFlags.PipelineStageTransferBit,
dstOffset,
size);
var region = new BufferCopy((ulong)srcOffset, (ulong)dstOffset, (ulong)size);
gd.Api.CmdCopyBuffer(cbs.CommandBuffer, srcBuffer, dstBuffer, 1, &region);
InsertBufferBarrier(
gd,
cbs.CommandBuffer,
dstBuffer,
AccessFlags.AccessTransferWriteBit,
BufferHolder.DefaultAccessFlags,
PipelineStageFlags.PipelineStageTransferBit,
PipelineStageFlags.PipelineStageAllCommandsBit,
dstOffset,
size);
}
public static unsafe void InsertBufferBarrier(
VulkanRenderer gd,
CommandBuffer commandBuffer,
VkBuffer buffer,
AccessFlags srcAccessMask,
AccessFlags dstAccessMask,
PipelineStageFlags srcStageMask,
PipelineStageFlags dstStageMask,
int offset,
int size)
{
BufferMemoryBarrier memoryBarrier = new BufferMemoryBarrier()
{
SType = StructureType.BufferMemoryBarrier,
SrcAccessMask = srcAccessMask,
DstAccessMask = dstAccessMask,
SrcQueueFamilyIndex = Vk.QueueFamilyIgnored,
DstQueueFamilyIndex = Vk.QueueFamilyIgnored,
Buffer = buffer,
Offset = (ulong)offset,
Size = (ulong)size
};
gd.Api.CmdPipelineBarrier(
commandBuffer,
srcStageMask,
dstStageMask,
0,
0,
null,
1,
memoryBarrier,
0,
null);
}
public void WaitForFences()
{
_waitable.WaitForFences(_gd.Api, _device);
}
public void WaitForFences(int offset, int size)
{
_waitable.WaitForFences(_gd.Api, _device, offset, size);
}
private bool BoundToRange(int offset, ref int size)
{
if (offset >= Size)
{
return false;
}
size = Math.Min(Size - offset, size);
return true;
}
public Auto<DisposableBuffer> GetBufferI8ToI16(CommandBufferScoped cbs, int offset, int size)
{
if (!BoundToRange(offset, ref size))
{
return null;
}
var key = new I8ToI16CacheKey(_gd);
if (!_cachedConvertedBuffers.TryGetValue(offset, size, key, out var holder))
{
holder = _gd.BufferManager.Create(_gd, (size * 2 + 3) & ~3);
_gd.PipelineInternal.EndRenderPass();
_gd.HelperShader.ConvertI8ToI16(_gd, cbs, this, holder, offset, size);
key.SetBuffer(holder.GetBuffer());
_cachedConvertedBuffers.Add(offset, size, key, holder);
}
return holder.GetBuffer();
}
public Auto<DisposableBuffer> GetAlignedVertexBuffer(CommandBufferScoped cbs, int offset, int size, int stride, int alignment)
{
if (!BoundToRange(offset, ref size))
{
return null;
}
var key = new AlignedVertexBufferCacheKey(_gd, stride, alignment);
if (!_cachedConvertedBuffers.TryGetValue(offset, size, key, out var holder))
{
int alignedStride = (stride + (alignment - 1)) & -alignment;
holder = _gd.BufferManager.Create(_gd, (size / stride) * alignedStride);
_gd.PipelineInternal.EndRenderPass();
_gd.HelperShader.ChangeStride(_gd, cbs, this, holder, offset, size, stride, alignedStride);
key.SetBuffer(holder.GetBuffer());
_cachedConvertedBuffers.Add(offset, size, key, holder);
}
return holder.GetBuffer();
}
public Auto<DisposableBuffer> GetBufferTopologyConversion(CommandBufferScoped cbs, int offset, int size, IndexBufferPattern pattern, int indexSize)
{
if (!BoundToRange(offset, ref size))
{
return null;
}
var key = new TopologyConversionCacheKey(_gd, pattern, indexSize);
if (!_cachedConvertedBuffers.TryGetValue(offset, size, key, out var holder))
{
// The destination index size is always I32.
int indexCount = size / indexSize;
int convertedCount = pattern.GetConvertedCount(indexCount);
holder = _gd.BufferManager.Create(_gd, convertedCount * 4);
_gd.PipelineInternal.EndRenderPass();
_gd.HelperShader.ConvertIndexBuffer(_gd, cbs, this, holder, pattern, indexSize, offset, indexCount);
key.SetBuffer(holder.GetBuffer());
_cachedConvertedBuffers.Add(offset, size, key, holder);
}
return holder.GetBuffer();
}
public bool TryGetCachedConvertedBuffer(int offset, int size, ICacheKey key, out BufferHolder holder)
{
return _cachedConvertedBuffers.TryGetValue(offset, size, key, out holder);
}
public void AddCachedConvertedBuffer(int offset, int size, ICacheKey key, BufferHolder holder)
{
_cachedConvertedBuffers.Add(offset, size, key, holder);
}
public void AddCachedConvertedBufferDependency(int offset, int size, ICacheKey key, Dependency dependency)
{
_cachedConvertedBuffers.AddDependency(offset, size, key, dependency);
}
public void RemoveCachedConvertedBuffer(int offset, int size, ICacheKey key)
{
_cachedConvertedBuffers.Remove(offset, size, key);
}
public void Dispose()
{
_gd.PipelineInternal?.FlushCommandsIfWeightExceeding(_buffer, (ulong)Size);
_buffer.Dispose();
_allocationAuto.Dispose();
_cachedConvertedBuffers.Dispose();
}
}
}