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Support non-index quad draws

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Fixes Deltarune
This commit is contained in:
Isaac Marovitz 2024-06-26 22:26:27 +01:00 committed by Isaac Marovitz
parent ab1e02c56a
commit 0c562a2c50
2 changed files with 221 additions and 10 deletions
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141
src/Ryujinx.Graphics.Metal/IndexBufferPattern.cs Normal file
View file

@ -0,0 +1,141 @@
using Ryujinx.Graphics.GAL;
using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.Runtime.Versioning;
namespace Ryujinx.Graphics.Metal
{
[SupportedOSPlatform("macos")]
internal class IndexBufferPattern : IDisposable
{
public int PrimitiveVertices { get; }
public int PrimitiveVerticesOut { get; }
public int BaseIndex { get; }
public int[] OffsetIndex { get; }
public int IndexStride { get; }
public bool RepeatStart { get; }
private readonly MetalRenderer _renderer;
private int _currentSize;
private BufferHandle _repeatingBuffer;
public IndexBufferPattern(MetalRenderer renderer,
int primitiveVertices,
int primitiveVerticesOut,
int baseIndex,
int[] offsetIndex,
int indexStride,
bool repeatStart)
{
PrimitiveVertices = primitiveVertices;
PrimitiveVerticesOut = primitiveVerticesOut;
BaseIndex = baseIndex;
OffsetIndex = offsetIndex;
IndexStride = indexStride;
RepeatStart = repeatStart;
_renderer = renderer;
}
public int GetPrimitiveCount(int vertexCount)
{
return Math.Max(0, (vertexCount - BaseIndex) / IndexStride);
}
public int GetConvertedCount(int indexCount)
{
int primitiveCount = GetPrimitiveCount(indexCount);
return primitiveCount * OffsetIndex.Length;
}
public IEnumerable<int> GetIndexMapping(int indexCount)
{
int primitiveCount = GetPrimitiveCount(indexCount);
int index = BaseIndex;
for (int i = 0; i < primitiveCount; i++)
{
if (RepeatStart)
{
// Used for triangle fan
yield return 0;
}
for (int j = RepeatStart ? 1 : 0; j < OffsetIndex.Length; j++)
{
yield return index + OffsetIndex[j];
}
index += IndexStride;
}
}
public BufferHandle GetRepeatingBuffer(int vertexCount, out int indexCount)
{
int primitiveCount = GetPrimitiveCount(vertexCount);
indexCount = primitiveCount * PrimitiveVerticesOut;
int expectedSize = primitiveCount * OffsetIndex.Length;
if (expectedSize <= _currentSize && _repeatingBuffer != BufferHandle.Null)
{
return _repeatingBuffer;
}
// Expand the repeating pattern to the number of requested primitives.
BufferHandle newBuffer = _renderer.BufferManager.CreateWithHandle(expectedSize * sizeof(int));
// Copy the old data to the new one.
if (_repeatingBuffer != BufferHandle.Null)
{
_renderer.Pipeline.CopyBuffer(_repeatingBuffer, newBuffer, 0, 0, _currentSize * sizeof(int));
_renderer.BufferManager.Delete(_repeatingBuffer);
}
_repeatingBuffer = newBuffer;
// Add the additional repeats on top.
int newPrimitives = primitiveCount;
int oldPrimitives = (_currentSize) / OffsetIndex.Length;
int[] newData;
newPrimitives -= oldPrimitives;
newData = new int[expectedSize - _currentSize];
int outOffset = 0;
int index = oldPrimitives * IndexStride + BaseIndex;
for (int i = 0; i < newPrimitives; i++)
{
if (RepeatStart)
{
// Used for triangle fan
newData[outOffset++] = 0;
}
for (int j = RepeatStart ? 1 : 0; j < OffsetIndex.Length; j++)
{
newData[outOffset++] = index + OffsetIndex[j];
}
index += IndexStride;
}
_renderer.SetBufferData(newBuffer, _currentSize * sizeof(int), MemoryMarshal.Cast<int, byte>(newData));
_currentSize = expectedSize;
return newBuffer;
}
public void Dispose()
{
if (_repeatingBuffer != BufferHandle.Null)
{
_renderer.BufferManager.Delete(_repeatingBuffer);
_repeatingBuffer = BufferHandle.Null;
}
}
}
}

78
src/Ryujinx.Graphics.Metal/Pipeline.cs
View file

@ -30,6 +30,9 @@ namespace Ryujinx.Graphics.Metal
public readonly Action EndRenderPassDelegate;
public MTLCommandBuffer CommandBuffer;
public IndexBufferPattern QuadsToTrisPattern;
public IndexBufferPattern TriFanToTrisPattern;
internal CommandBufferScoped? PreloadCbs { get; private set; }
internal CommandBufferScoped Cbs { get; private set; }
internal MTLCommandEncoder? CurrentEncoder { get; private set; }
@ -49,6 +52,9 @@ namespace Ryujinx.Graphics.Metal
internal void InitEncoderStateManager(BufferManager bufferManager)
{
_encoderStateManager = new EncoderStateManager(_device, bufferManager, this);
QuadsToTrisPattern = new IndexBufferPattern(_renderer, 4, 6, 0, [0, 1, 2, 0, 2, 3], 4, false);
TriFanToTrisPattern = new IndexBufferPattern(_renderer, 3, 3, 2, [int.MinValue, -1, 0], 1, true);
}
public void SaveState()
@ -360,10 +366,33 @@ namespace Ryujinx.Graphics.Metal
public void Draw(int vertexCount, int instanceCount, int firstVertex, int firstInstance)
{
if (vertexCount == 0)
{
return;
}
var renderCommandEncoder = GetOrCreateRenderEncoder(true);
// TODO: Support topology re-indexing to provide support for TriangleFans
var primitiveType = _encoderStateManager.Topology.Convert();
if (TopologyUnsupported(_encoderStateManager.Topology))
{
var pattern = GetIndexBufferPattern();
BufferHandle handle = pattern.GetRepeatingBuffer(vertexCount, out int indexCount);
var buffer = _renderer.BufferManager.GetBuffer(handle, false);
var mtlBuffer = buffer.Get(Cbs, 0, indexCount * sizeof(int)).Value;
var primitiveType = TopologyRemap(_encoderStateManager.Topology).Convert();
renderCommandEncoder.DrawIndexedPrimitives(
primitiveType,
(ulong)indexCount,
MTLIndexType.UInt32,
mtlBuffer,
0);
}
else
{
var primitiveType = TopologyRemap(_encoderStateManager.Topology).Convert();
renderCommandEncoder.DrawPrimitives(
primitiveType,
@ -372,13 +401,54 @@ namespace Ryujinx.Graphics.Metal
(ulong)instanceCount,
(ulong)firstInstance);
}
}
private IndexBufferPattern GetIndexBufferPattern()
{
return _encoderStateManager.Topology switch
{
PrimitiveTopology.Quads => QuadsToTrisPattern,
PrimitiveTopology.TriangleFan or PrimitiveTopology.Polygon => TriFanToTrisPattern,
_ => throw new NotSupportedException($"Unsupported topology: {_encoderStateManager.Topology}"),
};
}
private PrimitiveTopology TopologyRemap(PrimitiveTopology topology)
{
return topology switch
{
PrimitiveTopology.Quads => PrimitiveTopology.Triangles,
PrimitiveTopology.QuadStrip => PrimitiveTopology.TriangleStrip,
PrimitiveTopology.TriangleFan or PrimitiveTopology.Polygon => PrimitiveTopology.Triangles,
_ => topology,
};
}
private bool TopologyUnsupported(PrimitiveTopology topology)
{
return topology switch
{
PrimitiveTopology.Quads or PrimitiveTopology.TriangleFan or PrimitiveTopology.Polygon => true,
_ => false,
};
}
public void DrawIndexed(int indexCount, int instanceCount, int firstIndex, int firstVertex, int firstInstance)
{
if (indexCount == 0)
{
return;
}
var renderCommandEncoder = GetOrCreateRenderEncoder(true);
// TODO: Support topology re-indexing to provide support for TriangleFans
var primitiveType = _encoderStateManager.Topology.Convert();
// TODO: Reindex unsupported topologies
if (TopologyUnsupported(_encoderStateManager.Topology))
{
Logger.Warning?.Print(LogClass.Gpu, $"Drawing indexed with unsupported topology: {_encoderStateManager.Topology}");
}
var primitiveType = TopologyRemap(_encoderStateManager.Topology).Convert();
var indexBuffer = _encoderStateManager.IndexBuffer;