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Support partial invalidation on texture access (#1000)

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* Support partial invalidation on texture access

* Fix typo

* PR feedback

* Fix modified size clamping
This commit is contained in:
gdkchan 2020-03-20 00:17:11 -03:00 committed by GitHub
parent 32d3f3f690
commit 8e64984158
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 113 additions and 13 deletions
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76
Ryujinx.Graphics.Gpu/Image/Texture.cs
View file

@ -302,15 +302,68 @@ namespace Ryujinx.Graphics.Gpu.Image
_sequenceNumber = _context.SequenceNumber;
bool modified = _context.PhysicalMemory.GetModifiedRanges(Address, Size, ResourceName.Texture).Length != 0;
(ulong, ulong)[] modifiedRanges = _context.PhysicalMemory.GetModifiedRanges(Address, Size, ResourceName.Texture);
if (!modified && _hasData)
if (modifiedRanges.Length == 0 && _hasData)
{
return;
}
ReadOnlySpan<byte> data = _context.PhysicalMemory.GetSpan(Address, Size);
// If the texture was modified by the host GPU, we do partial invalidation
// of the texture by getting GPU data and merging in the pages of memory
// that were modified.
// Note that if ASTC is not supported by the GPU we can't read it back since
// it will use a different format. Since applications shouldn't be writing
// ASTC textures from the GPU anyway, ignoring it should be safe.
if (_context.Methods.TextureManager.IsTextureModified(this) && !Info.FormatInfo.Format.IsAstc())
{
Span<byte> gpuData = GetTextureDataFromGpu();
ulong endAddress = Address + Size;
for (int i = 0; i < modifiedRanges.Length; i++)
{
(ulong modifiedAddress, ulong modifiedSize) = modifiedRanges[i];
ulong endModifiedAddress = modifiedAddress + modifiedSize;
if (modifiedAddress < Address)
{
modifiedAddress = Address;
}
if (endModifiedAddress > endAddress)
{
endModifiedAddress = endAddress;
}
modifiedSize = endModifiedAddress - modifiedAddress;
int offset = (int)(modifiedAddress - Address);
int length = (int)modifiedSize;
data.Slice(offset, length).CopyTo(gpuData.Slice(offset, length));
}
data = gpuData;
}
data = ConvertToHostCompatibleFormat(data);
HostTexture.SetData(data);
_hasData = true;
}
/// <summary>
/// Converts texture data to a format and layout that is supported by the host GPU.
/// </summary>
/// <param name="data">Data to be converted</param>
/// <returns>Converted data</returns>
private ReadOnlySpan<byte> ConvertToHostCompatibleFormat(ReadOnlySpan<byte> data)
{
if (Info.IsLinear)
{
data = LayoutConverter.ConvertLinearStridedToLinear(
@ -360,9 +413,7 @@ namespace Ryujinx.Graphics.Gpu.Image
data = decoded;
}
HostTexture.SetData(data);
_hasData = true;
return data;
}
/// <summary>
@ -374,6 +425,19 @@ namespace Ryujinx.Graphics.Gpu.Image
/// This may cause data corruption if the memory is already being used for something else on the CPU side.
/// </summary>
public void Flush()
{
_context.PhysicalMemory.Write(Address, GetTextureDataFromGpu());
}
/// <summary>
/// Gets data from the host GPU.
/// </summary>
/// <remarks>
/// This method should be used to retrieve data that was modified by the host GPU.
/// This is not cheap, avoid doing that unless strictly needed.
/// </remarks>
/// <returns>Host texture data</returns>
private Span<byte> GetTextureDataFromGpu()
{
Span<byte> data = HostTexture.GetData();
@ -406,7 +470,7 @@ namespace Ryujinx.Graphics.Gpu.Image
data);
}
_context.PhysicalMemory.Write(Address, data);
return data;
}
/// <summary>

50
Ryujinx.Graphics.Gpu/Image/TextureManager.cs
View file

@ -37,6 +37,7 @@ namespace Ryujinx.Graphics.Gpu.Image
private readonly AutoDeleteCache _cache;
private readonly HashSet<Texture> _modified;
private readonly HashSet<Texture> _modifiedLinear;
/// <summary>
/// Constructs a new instance of the texture manager.
@ -62,6 +63,7 @@ namespace Ryujinx.Graphics.Gpu.Image
_cache = new AutoDeleteCache();
_modified = new HashSet<Texture>(new ReferenceEqualityComparer<Texture>());
_modifiedLinear = new HashSet<Texture>(new ReferenceEqualityComparer<Texture>());
}
/// <summary>
@ -519,6 +521,11 @@ namespace Ryujinx.Graphics.Gpu.Image
texture = overlap.CreateView(info, sizeInfo, firstLayer, firstLevel);
if (IsTextureModified(overlap))
{
CacheTextureModified(texture);
}
// The size only matters (and is only really reliable) when the
// texture is used on a sampler, because otherwise the size will be
// aligned.
@ -554,6 +561,13 @@ namespace Ryujinx.Graphics.Gpu.Image
overlap.HostTexture.CopyTo(newView, 0, 0);
// Inherit modification from overlapping texture, do that before replacing
// the view since the replacement operation removes it from the list.
if (IsTextureModified(overlap))
{
CacheTextureModified(texture);
}
overlap.ReplaceView(texture, overlapInfo, newView);
}
}
@ -574,6 +588,11 @@ namespace Ryujinx.Graphics.Gpu.Image
out int firstLevel))
{
overlap.HostTexture.CopyTo(texture.HostTexture, firstLayer, firstLevel);
if (IsTextureModified(overlap))
{
CacheTextureModified(texture);
}
}
}
}
@ -595,6 +614,16 @@ namespace Ryujinx.Graphics.Gpu.Image
return texture;
}
/// <summary>
/// Checks if a texture was modified by the host GPU.
/// </summary>
/// <param name="texture">Texture to be checked</param>
/// <returns>True if the texture was modified by the host GPU, false otherwise</returns>
public bool IsTextureModified(Texture texture)
{
return _modified.Contains(texture);
}
/// <summary>
/// Signaled when a cache texture is modified, and adds it to a set to be enumerated when flushing textures.
/// </summary>
@ -602,6 +631,11 @@ namespace Ryujinx.Graphics.Gpu.Image
private void CacheTextureModified(Texture texture)
{
_modified.Add(texture);
if (texture.Info.IsLinear)
{
_modifiedLinear.Add(texture);
}
}
/// <summary>
@ -611,6 +645,11 @@ namespace Ryujinx.Graphics.Gpu.Image
private void CacheTextureDisposed(Texture texture)
{
_modified.Remove(texture);
if (texture.Info.IsLinear)
{
_modifiedLinear.Remove(texture);
}
}
/// <summary>
@ -747,14 +786,12 @@ namespace Ryujinx.Graphics.Gpu.Image
/// </summary>
public void Flush()
{
foreach (Texture texture in _modified)
foreach (Texture texture in _modifiedLinear)
{
if (texture.Info.IsLinear)
{
texture.Flush();
}
texture.Flush();
}
_modified.Clear();
_modifiedLinear.Clear();
}
/// <summary>
@ -771,7 +808,6 @@ namespace Ryujinx.Graphics.Gpu.Image
texture.Flush();
}
}
_modified.Clear();
}
/// <summary>