mirror of
https://github.com/Ryujinx/Ryujinx.git
synced 2024-11-14 12:16:40 +00:00
348 lines
14 KiB
C#
348 lines
14 KiB
C#
using Ryujinx.Common;
|
|
using Ryujinx.Common.Logging;
|
|
using Ryujinx.Graphics.Device;
|
|
using Ryujinx.Graphics.Gpu.Engine.Threed;
|
|
using Ryujinx.Graphics.Texture;
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using System.Runtime.CompilerServices;
|
|
using System.Runtime.Intrinsics;
|
|
|
|
namespace Ryujinx.Graphics.Gpu.Engine.Dma
|
|
{
|
|
/// <summary>
|
|
/// Represents a DMA copy engine class.
|
|
/// </summary>
|
|
class DmaClass : IDeviceState
|
|
{
|
|
private readonly GpuContext _context;
|
|
private readonly GpuChannel _channel;
|
|
private readonly ThreedClass _3dEngine;
|
|
private readonly DeviceState<DmaClassState> _state;
|
|
|
|
/// <summary>
|
|
/// Copy flags passed on DMA launch.
|
|
/// </summary>
|
|
[Flags]
|
|
private enum CopyFlags
|
|
{
|
|
SrcLinear = 1 << 7,
|
|
DstLinear = 1 << 8,
|
|
MultiLineEnable = 1 << 9,
|
|
RemapEnable = 1 << 10
|
|
}
|
|
|
|
/// <summary>
|
|
/// Creates a new instance of the DMA copy engine class.
|
|
/// </summary>
|
|
/// <param name="context">GPU context</param>
|
|
/// <param name="channel">GPU channel</param>
|
|
/// <param name="threedEngine">3D engine</param>
|
|
public DmaClass(GpuContext context, GpuChannel channel, ThreedClass threedEngine)
|
|
{
|
|
_context = context;
|
|
_channel = channel;
|
|
_3dEngine = threedEngine;
|
|
_state = new DeviceState<DmaClassState>(new Dictionary<string, RwCallback>
|
|
{
|
|
{ nameof(DmaClassState.LaunchDma), new RwCallback(LaunchDma, null) }
|
|
});
|
|
}
|
|
|
|
/// <summary>
|
|
/// Reads data from the class registers.
|
|
/// </summary>
|
|
/// <param name="offset">Register byte offset</param>
|
|
/// <returns>Data at the specified offset</returns>
|
|
public int Read(int offset) => _state.Read(offset);
|
|
|
|
/// <summary>
|
|
/// Writes data to the class registers.
|
|
/// </summary>
|
|
/// <param name="offset">Register byte offset</param>
|
|
/// <param name="data">Data to be written</param>
|
|
public void Write(int offset, int data) => _state.Write(offset, data);
|
|
|
|
/// <summary>
|
|
/// Determine if a buffer-to-texture region covers the entirety of a texture.
|
|
/// </summary>
|
|
/// <param name="tex">Texture to compare</param>
|
|
/// <param name="linear">True if the texture is linear, false if block linear</param>
|
|
/// <param name="bpp">Texture bytes per pixel</param>
|
|
/// <param name="stride">Texture stride</param>
|
|
/// <param name="xCount">Number of pixels to be copied</param>
|
|
/// <param name="yCount">Number of lines to be copied</param>
|
|
/// <returns></returns>
|
|
private static bool IsTextureCopyComplete(DmaTexture tex, bool linear, int bpp, int stride, int xCount, int yCount)
|
|
{
|
|
if (linear)
|
|
{
|
|
// If the stride is negative, the texture has to be flipped, so
|
|
// the fast copy is not trivial, use the slow path.
|
|
if (stride <= 0)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
int alignWidth = Constants.StrideAlignment / bpp;
|
|
return stride / bpp == BitUtils.AlignUp(xCount, alignWidth);
|
|
}
|
|
else
|
|
{
|
|
int alignWidth = Constants.GobAlignment / bpp;
|
|
return tex.RegionX == 0 &&
|
|
tex.RegionY == 0 &&
|
|
tex.Width == BitUtils.AlignUp(xCount, alignWidth) &&
|
|
tex.Height == yCount;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Releases a semaphore for a given LaunchDma method call.
|
|
/// </summary>
|
|
/// <param name="argument">The LaunchDma call argument</param>
|
|
private void ReleaseSemaphore(int argument)
|
|
{
|
|
LaunchDmaSemaphoreType type = (LaunchDmaSemaphoreType)((argument >> 3) & 0x3);
|
|
if (type != LaunchDmaSemaphoreType.None)
|
|
{
|
|
ulong address = ((ulong)_state.State.SetSemaphoreA << 32) | _state.State.SetSemaphoreB;
|
|
if (type == LaunchDmaSemaphoreType.ReleaseOneWordSemaphore)
|
|
{
|
|
_channel.MemoryManager.Write(address, _state.State.SetSemaphorePayload);
|
|
}
|
|
else /* if (type == LaunchDmaSemaphoreType.ReleaseFourWordSemaphore) */
|
|
{
|
|
_channel.MemoryManager.Write(address + 8, _context.GetTimestamp());
|
|
_channel.MemoryManager.Write(address, (ulong)_state.State.SetSemaphorePayload);
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Performs a buffer to buffer, or buffer to texture copy.
|
|
/// </summary>
|
|
/// <param name="argument">The LaunchDma call argument</param>
|
|
private void DmaCopy(int argument)
|
|
{
|
|
var memoryManager = _channel.MemoryManager;
|
|
|
|
CopyFlags copyFlags = (CopyFlags)argument;
|
|
|
|
bool srcLinear = copyFlags.HasFlag(CopyFlags.SrcLinear);
|
|
bool dstLinear = copyFlags.HasFlag(CopyFlags.DstLinear);
|
|
bool copy2D = copyFlags.HasFlag(CopyFlags.MultiLineEnable);
|
|
bool remap = copyFlags.HasFlag(CopyFlags.RemapEnable);
|
|
|
|
uint size = _state.State.LineLengthIn;
|
|
|
|
if (size == 0)
|
|
{
|
|
return;
|
|
}
|
|
|
|
ulong srcGpuVa = ((ulong)_state.State.OffsetInUpperUpper << 32) | _state.State.OffsetInLower;
|
|
ulong dstGpuVa = ((ulong)_state.State.OffsetOutUpperUpper << 32) | _state.State.OffsetOutLower;
|
|
|
|
int xCount = (int)_state.State.LineLengthIn;
|
|
int yCount = (int)_state.State.LineCount;
|
|
|
|
_3dEngine.FlushUboDirty();
|
|
|
|
if (copy2D)
|
|
{
|
|
// Buffer to texture copy.
|
|
int componentSize = (int)_state.State.SetRemapComponentsComponentSize + 1;
|
|
int srcBpp = remap ? ((int)_state.State.SetRemapComponentsNumSrcComponents + 1) * componentSize : 1;
|
|
int dstBpp = remap ? ((int)_state.State.SetRemapComponentsNumDstComponents + 1) * componentSize : 1;
|
|
|
|
var dst = Unsafe.As<uint, DmaTexture>(ref _state.State.SetDstBlockSize);
|
|
var src = Unsafe.As<uint, DmaTexture>(ref _state.State.SetSrcBlockSize);
|
|
|
|
int srcRegionX = 0, srcRegionY = 0, dstRegionX = 0, dstRegionY = 0;
|
|
|
|
if (!srcLinear)
|
|
{
|
|
srcRegionX = src.RegionX;
|
|
srcRegionY = src.RegionY;
|
|
}
|
|
|
|
if (!dstLinear)
|
|
{
|
|
dstRegionX = dst.RegionX;
|
|
dstRegionY = dst.RegionY;
|
|
}
|
|
|
|
int srcStride = (int)_state.State.PitchIn;
|
|
int dstStride = (int)_state.State.PitchOut;
|
|
|
|
var srcCalculator = new OffsetCalculator(
|
|
src.Width,
|
|
src.Height,
|
|
srcStride,
|
|
srcLinear,
|
|
src.MemoryLayout.UnpackGobBlocksInY(),
|
|
src.MemoryLayout.UnpackGobBlocksInZ(),
|
|
srcBpp);
|
|
|
|
var dstCalculator = new OffsetCalculator(
|
|
dst.Width,
|
|
dst.Height,
|
|
dstStride,
|
|
dstLinear,
|
|
dst.MemoryLayout.UnpackGobBlocksInY(),
|
|
dst.MemoryLayout.UnpackGobBlocksInZ(),
|
|
dstBpp);
|
|
|
|
(int srcBaseOffset, int srcSize) = srcCalculator.GetRectangleRange(srcRegionX, srcRegionY, xCount, yCount);
|
|
(int dstBaseOffset, int dstSize) = dstCalculator.GetRectangleRange(dstRegionX, dstRegionY, xCount, yCount);
|
|
|
|
if (srcLinear && srcStride < 0)
|
|
{
|
|
srcBaseOffset += srcStride * (yCount - 1);
|
|
}
|
|
|
|
if (dstLinear && dstStride < 0)
|
|
{
|
|
dstBaseOffset += dstStride * (yCount - 1);
|
|
}
|
|
|
|
ReadOnlySpan<byte> srcSpan = memoryManager.GetSpan(srcGpuVa + (ulong)srcBaseOffset, srcSize, true);
|
|
Span<byte> dstSpan = memoryManager.GetSpan(dstGpuVa + (ulong)dstBaseOffset, dstSize).ToArray();
|
|
|
|
bool completeSource = IsTextureCopyComplete(src, srcLinear, srcBpp, srcStride, xCount, yCount);
|
|
bool completeDest = IsTextureCopyComplete(dst, dstLinear, dstBpp, dstStride, xCount, yCount);
|
|
|
|
if (completeSource && completeDest)
|
|
{
|
|
var target = memoryManager.Physical.TextureCache.FindTexture(
|
|
memoryManager,
|
|
dst,
|
|
dstGpuVa,
|
|
dstBpp,
|
|
dstStride,
|
|
xCount,
|
|
yCount,
|
|
dstLinear);
|
|
|
|
if (target != null)
|
|
{
|
|
ReadOnlySpan<byte> data;
|
|
if (srcLinear)
|
|
{
|
|
data = LayoutConverter.ConvertLinearStridedToLinear(
|
|
target.Info.Width,
|
|
target.Info.Height,
|
|
1,
|
|
1,
|
|
xCount * srcBpp,
|
|
srcStride,
|
|
target.Info.FormatInfo.BytesPerPixel,
|
|
srcSpan);
|
|
}
|
|
else
|
|
{
|
|
data = LayoutConverter.ConvertBlockLinearToLinear(
|
|
src.Width,
|
|
src.Height,
|
|
src.Depth,
|
|
1,
|
|
1,
|
|
1,
|
|
1,
|
|
1,
|
|
srcBpp,
|
|
src.MemoryLayout.UnpackGobBlocksInY(),
|
|
src.MemoryLayout.UnpackGobBlocksInZ(),
|
|
1,
|
|
new SizeInfo((int)target.Size),
|
|
srcSpan);
|
|
}
|
|
|
|
target.SynchronizeMemory();
|
|
target.SetData(data);
|
|
target.SignalModified();
|
|
|
|
return;
|
|
}
|
|
else if (srcCalculator.LayoutMatches(dstCalculator))
|
|
{
|
|
srcSpan.CopyTo(dstSpan); // No layout conversion has to be performed, just copy the data entirely.
|
|
|
|
memoryManager.Write(dstGpuVa + (ulong)dstBaseOffset, dstSpan);
|
|
|
|
return;
|
|
}
|
|
}
|
|
|
|
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 < yCount; y++)
|
|
{
|
|
srcCalculator.SetY(srcRegionY + y);
|
|
dstCalculator.SetY(dstRegionY + y);
|
|
|
|
for (int x = 0; x < xCount; x++)
|
|
{
|
|
int srcOffset = srcCalculator.GetOffset(srcRegionX + x);
|
|
int dstOffset = dstCalculator.GetOffset(dstRegionX + 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.")
|
|
};
|
|
|
|
memoryManager.Write(dstGpuVa + (ulong)dstBaseOffset, dstSpan);
|
|
}
|
|
else
|
|
{
|
|
if (remap &&
|
|
_state.State.SetRemapComponentsDstX == SetRemapComponentsDst.ConstA &&
|
|
_state.State.SetRemapComponentsDstY == SetRemapComponentsDst.ConstA &&
|
|
_state.State.SetRemapComponentsDstZ == SetRemapComponentsDst.ConstA &&
|
|
_state.State.SetRemapComponentsDstW == SetRemapComponentsDst.ConstA &&
|
|
_state.State.SetRemapComponentsNumSrcComponents == SetRemapComponentsNumComponents.One &&
|
|
_state.State.SetRemapComponentsNumDstComponents == SetRemapComponentsNumComponents.One &&
|
|
_state.State.SetRemapComponentsComponentSize == SetRemapComponentsComponentSize.Four)
|
|
{
|
|
// Fast path for clears when remap is enabled.
|
|
memoryManager.Physical.BufferCache.ClearBuffer(memoryManager, dstGpuVa, size * 4, _state.State.SetRemapConstA);
|
|
}
|
|
else
|
|
{
|
|
// TODO: Implement remap functionality.
|
|
// Buffer to buffer copy.
|
|
memoryManager.Physical.BufferCache.CopyBuffer(memoryManager, srcGpuVa, dstGpuVa, size);
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Performs a buffer to buffer, or buffer to texture copy, then optionally releases a semaphore.
|
|
/// </summary>
|
|
/// <param name="argument">Method call argument</param>
|
|
private void LaunchDma(int argument)
|
|
{
|
|
DmaCopy(argument);
|
|
ReleaseSemaphore(argument);
|
|
}
|
|
}
|
|
}
|