ryujinx/Ryujinx.Graphics.Vulkan/BufferState.cs
riperiperi 9f1cf6458c
Vulkan: Migrate buffers between memory types to improve GPU performance (#4540)
* Initial implementation of migration between memory heaps

- Missing OOM handling
- Missing `_map` data safety when remapping
  - Copy may not have completed yet (needs some kind of fence)
  - Map may be unmapped before it is done being used. (needs scoped access)
- SSBO accesses are all "writes" - maybe pass info in another way.
- Missing keeping map type when resizing buffers (should this be done?)

* Ensure migrated data is in place before flushing.

* Fix issue where old waitable would be signalled.

- There is a real issue where existing Auto<> references need to be replaced.

* Swap bound Auto<> instances when swapping buffer backing

* Fix conversion buffers

* Don't try move buffers if the host has shared memory.

* Make GPU methods return PinnedSpan with scope

* Storage Hint

* Fix stupidity

* Fix rebase

* Tweak rules

Attempt to sidestep BOTW slowdown

* Remove line

* Migrate only when command buffers flush

* Change backing swap log to debug

* Address some feedback

* Disallow backing swap when the flush lock is held by the current thread

* Make PinnedSpan from ReadOnlySpan explicitly unsafe

* Fix some small issues

- Index buffer swap fixed
- Allocate DeviceLocal buffers using a separate block list to images.

* Remove alternative flags

* Address feedback
2023-03-19 17:56:48 -03:00

49 lines
1.3 KiB
C#

using System;
namespace Ryujinx.Graphics.Vulkan
{
struct BufferState : IDisposable
{
public static BufferState Null => new BufferState(null, 0, 0);
private readonly int _offset;
private readonly int _size;
private Auto<DisposableBuffer> _buffer;
public BufferState(Auto<DisposableBuffer> buffer, int offset, int size)
{
_buffer = buffer;
_offset = offset;
_size = size;
buffer?.IncrementReferenceCount();
}
public void BindTransformFeedbackBuffer(VulkanRenderer gd, CommandBufferScoped cbs, uint binding)
{
if (_buffer != null)
{
var buffer = _buffer.Get(cbs, _offset, _size).Value;
gd.TransformFeedbackApi.CmdBindTransformFeedbackBuffers(cbs.CommandBuffer, binding, 1, buffer, (ulong)_offset, (ulong)_size);
}
}
public void Swap(Auto<DisposableBuffer> from, Auto<DisposableBuffer> to)
{
if (_buffer == from)
{
_buffer.DecrementReferenceCount();
to.IncrementReferenceCount();
_buffer = to;
}
}
public void Dispose()
{
_buffer?.DecrementReferenceCount();
}
}
}