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Metal: Unsupported topology indexed draw conversion (#40)

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* Convert unsupported indexed buffer topologies

* Fix index count and dispatch size

* Cleanup

* Fix typos
This commit is contained in:
Isaac Marovitz
2024-09-02 12:55:30 +01:00
committed by Evan Husted
parent 38b2cf9b83
commit 51e85ed38b
9 changed files with 256 additions and 106 deletions
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37
src/Ryujinx.Graphics.Metal/IndexBufferState.cs
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@@ -62,5 +62,42 @@ namespace Ryujinx.Graphics.Metal
return (new MTLBuffer(IntPtr.Zero), 0, MTLIndexType.UInt16);
}
public (MTLBuffer, int, MTLIndexType) GetConvertedIndexBuffer(
MetalRenderer renderer,
CommandBufferScoped cbs,
int firstIndex,
int indexCount,
int convertedCount,
IndexBufferPattern pattern)
{
// Convert the index buffer using the given pattern.
int indexSize = GetIndexSize();
int firstIndexOffset = firstIndex * indexSize;
var autoBuffer = renderer.BufferManager.GetBufferTopologyConversion(cbs, _handle, _offset + firstIndexOffset, indexCount * indexSize, pattern, indexSize);
int size = convertedCount * 4;
if (autoBuffer != null)
{
DisposableBuffer buffer = autoBuffer.Get(cbs, 0, size);
return (buffer.Value, 0, MTLIndexType.UInt32);
}
return (new MTLBuffer(IntPtr.Zero), 0, MTLIndexType.UInt32);
}
private int GetIndexSize()
{
return _type switch
{
IndexType.UInt => 4,
IndexType.UShort => 2,
_ => 1,
};
}
}
}