Ryujinx/Ryujinx.Graphics.Gpu/Image/SamplerPool.cs

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2019-10-13 08:02:07 +02:00
using System;
using System.Runtime.InteropServices;
namespace Ryujinx.Graphics.Gpu.Image
{
class SamplerPool : Pool<Sampler>
{
private int _sequenceNumber;
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public SamplerPool(GpuContext context, ulong address, int maximumId) : base(context, address, maximumId) { }
public override Sampler Get(int id)
{
if ((uint)id >= Items.Length)
{
return null;
}
if (_sequenceNumber != Context.SequenceNumber)
{
_sequenceNumber = Context.SequenceNumber;
SynchronizeMemory();
}
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Sampler sampler = Items[id];
if (sampler == null)
{
ulong address = Address + (ulong)(uint)id * DescriptorSize;
Span<byte> data = Context.PhysicalMemory.Read(address, DescriptorSize);
SamplerDescriptor descriptor = MemoryMarshal.Cast<byte, SamplerDescriptor>(data)[0];
sampler = new Sampler(Context, descriptor);
Items[id] = sampler;
}
return sampler;
}
protected override void InvalidateRangeImpl(ulong address, ulong size)
{
ulong endAddress = address + size;
for (; address < endAddress; address += DescriptorSize)
{
int id = (int)((address - Address) / DescriptorSize);
Sampler sampler = Items[id];
if (sampler != null)
{
sampler.Dispose();
Items[id] = null;
}
}
}
protected override void Delete(Sampler item)
{
item?.Dispose();
}
}
}