drashna/ryujinx
1
0
Fork 0
Code Activity Actions

Optimize texture format conversion, and MethodCopyBuffer (#1274)

Browse source 
* Improve performance when converting texture formats.

Still more work to do.

* Speed up buffer -> texture copies.

No longer copies byte by byte. Fast path when formats are identical.

* Fix a few things, 64 byte block fast copy.

* Spacing cleanup, unrelated change.

* Fix base offset calculation for region copies.

* Fix Linear -> BlockLinear

* Fix some nits. (part 1 of review feedback)

* Use a generic version of the Convert* functions rather than lambdas.

This is some real monkey's paw shit.

* Remove unnecessary span constructor.

* Revert "Use a generic version of the Convert* functions rather than lambdas."

This reverts commit aa43dcfbe8bba291eea4e10c68569af7a56a5851.

* Fix bug with rectangle destination writing, better rectangle calculation for linear textures.
This commit is contained in:
riperiperi 2020-06-13 23:31:06 +01:00 • committed by GitHub
parent ce983f360b
commit bea1fc2e8d
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
5 changed files with 356 additions and 61 deletions
Download patch file Download diff file Expand all files Collapse all files

62
Ryujinx.Graphics.Gpu/Engine/MethodCopyBuffer.cs
View file

@ -1,6 +1,7 @@
using Ryujinx.Graphics.Gpu.State;
using Ryujinx.Graphics.Texture;
using System;
using System.Runtime.Intrinsics;
namespace Ryujinx.Graphics.Gpu.Engine
{
@ -56,19 +57,58 @@ namespace Ryujinx.Graphics.Gpu.Engine
ulong srcBaseAddress = _context.MemoryManager.Translate(cbp.SrcAddress.Pack());
ulong dstBaseAddress = _context.MemoryManager.Translate(cbp.DstAddress.Pack());
for (int y = 0; y < cbp.YCount; y++)
for (int x = 0; x < cbp.XCount; x++)
(int srcBaseOffset, int srcSize) = srcCalculator.GetRectangleRange(src.RegionX, src.RegionY, cbp.XCount, cbp.YCount);
(int dstBaseOffset, int dstSize) = dstCalculator.GetRectangleRange(dst.RegionX, dst.RegionY, cbp.XCount, cbp.YCount);
ReadOnlySpan<byte> srcSpan = _context.PhysicalMemory.GetSpan(srcBaseAddress + (ulong)srcBaseOffset, srcSize);
Span<byte> dstSpan = _context.PhysicalMemory.GetSpan(dstBaseAddress + (ulong)dstBaseOffset, dstSize).ToArray();
bool completeSource = src.RegionX == 0 && src.RegionY == 0 && src.Width == cbp.XCount && src.Height == cbp.YCount;
bool completeDest = dst.RegionX == 0 && dst.RegionY == 0 && dst.Width == cbp.XCount && dst.Height == cbp.YCount;
if (completeSource && completeDest && srcCalculator.LayoutMatches(dstCalculator))
{
int srcOffset = srcCalculator.GetOffset(src.RegionX + x, src.RegionY + y);
int dstOffset = dstCalculator.GetOffset(dst.RegionX + x, dst.RegionY + y);
ulong srcAddress = srcBaseAddress + (ulong)srcOffset;
ulong dstAddress = dstBaseAddress + (ulong)dstOffset;
ReadOnlySpan<byte> pixel = _context.PhysicalMemory.GetSpan(srcAddress, srcBpp);
_context.PhysicalMemory.Write(dstAddress, pixel);
srcSpan.CopyTo(dstSpan); // No layout conversion has to be performed, just copy the data entirely.
}
else
{
unsafe bool Convert<T>(Span<byte> dstSpan, ReadOnlySpan<byte> srcSpan) where T : unmanaged
{
fixed (byte* dstPtr = dstSpan, srcPtr = srcSpan)
{
byte* dstBase = dstPtr - dstBaseOffset; // Layout offset is relative to the base, so we need to subtract the span's offset.
byte* srcBase = srcPtr - srcBaseOffset;
for (int y = 0; y < cbp.YCount; y++)
{
srcCalculator.SetY(src.RegionY + y);
dstCalculator.SetY(dst.RegionY + y);
for (int x = 0; x < cbp.XCount; x++)
{
int srcOffset = srcCalculator.GetOffset(src.RegionX + x);
int dstOffset = dstCalculator.GetOffset(dst.RegionX + x);
*(T*)(dstBase + dstOffset) = *(T*)(srcBase + srcOffset);
}
}
}
return true;
}
bool _ = srcBpp switch
{
1 => Convert<byte>(dstSpan, srcSpan),
2 => Convert<ushort>(dstSpan, srcSpan),
4 => Convert<uint>(dstSpan, srcSpan),
8 => Convert<ulong>(dstSpan, srcSpan),
12 => Convert<Bpp12Pixel>(dstSpan, srcSpan),
16 => Convert<Vector128<byte>>(dstSpan, srcSpan),
_ => throw new NotSupportedException($"Unable to copy ${srcBpp} bpp pixel format.")
};
}
_context.PhysicalMemory.Write(dstBaseAddress + (ulong)dstBaseOffset, dstSpan);
}
else
{