mirror of
https://github.com/Ryujinx/Ryujinx.git
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99 lines
2.7 KiB
C#
99 lines
2.7 KiB
C#
using Ryujinx.Graphics.GAL;
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using System;
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namespace Ryujinx.Graphics.Gpu.Memory
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{
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class Buffer : IRange<Buffer>, IDisposable
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{
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private GpuContext _context;
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private IBuffer _buffer;
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public ulong Address { get; }
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public ulong Size { get; }
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public ulong EndAddress => Address + Size;
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private int[] _sequenceNumbers;
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public Buffer(GpuContext context, ulong address, ulong size)
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{
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_context = context;
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Address = address;
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Size = size;
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_buffer = context.Renderer.CreateBuffer((int)size);
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_sequenceNumbers = new int[size / MemoryManager.PageSize];
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Invalidate();
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}
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public BufferRange GetRange(ulong address, ulong size)
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{
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int offset = (int)(address - Address);
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return new BufferRange(_buffer, offset, (int)size);
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}
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public bool OverlapsWith(ulong address, ulong size)
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{
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return Address < address + size && address < EndAddress;
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}
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public void SynchronizeMemory(ulong address, ulong size)
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{
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int currentSequenceNumber = _context.SequenceNumber;
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bool needsSync = false;
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ulong buffOffset = address - Address;
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ulong buffEndOffset = (buffOffset + size + MemoryManager.PageMask) & ~MemoryManager.PageMask;
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int startIndex = (int)(buffOffset / MemoryManager.PageSize);
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int endIndex = (int)(buffEndOffset / MemoryManager.PageSize);
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for (int index = startIndex; index < endIndex; index++)
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{
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if (_sequenceNumbers[index] != currentSequenceNumber)
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{
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_sequenceNumbers[index] = currentSequenceNumber;
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needsSync = true;
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}
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}
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if (!needsSync)
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{
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return;
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}
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(ulong, ulong)[] modifiedRanges = _context.PhysicalMemory.GetModifiedRanges(address, size, ResourceName.Buffer);
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for (int index = 0; index < modifiedRanges.Length; index++)
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{
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(ulong mAddress, ulong mSize) = modifiedRanges[index];
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int offset = (int)(mAddress - Address);
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_buffer.SetData(offset, _context.PhysicalMemory.Read(mAddress, mSize));
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}
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}
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public void CopyTo(Buffer destination, int dstOffset)
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{
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_buffer.CopyTo(destination._buffer, 0, dstOffset, (int)Size);
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}
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public void Invalidate()
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{
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_buffer.SetData(0, _context.PhysicalMemory.Read(Address, Size));
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}
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public void Dispose()
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{
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_buffer.Dispose();
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}
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}
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} |