mirror of
https://github.com/Ryujinx/Ryujinx.git
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* Initial implementation. Still pending better valid-overlap handling, disposed pool, compressed format flush fix. * Very messy backend resource cache. * Oops * Dispose -> Release * Improve Release/Dispose. * More rule refinement. * View compatibility levels as an enum - you can always know if a view is only copy compatible. * General cleanup. Use locking on the resource cache, as it is likely to be used by other threads in future. * Rename resource cache to resource pool. * Address some of the smaller nits. * Fix regression with MK8 lens flare Texture flushes done the old way should trigger memory tracking. * Use TextureCreateInfo as a key. It now implements IEquatable and generates a hashcode based on width/height. * Fix size change for compressed+non-compressed view combos. Before, this could set either the compressed or non compressed texture with a size with the wrong size, depending on which texture had its size changed. This caused exceptions when flushing the texture. Now it correctly takes the block size into account, assuming that these textures are only related because a pixel in the non-compressed texture represents a block in the compressed one. * Implement JD's suggestion for HashCode Combine Co-authored-by: jduncanator <1518948+jduncanator@users.noreply.github.com> * Address feedback * Address feedback. Co-authored-by: jduncanator <1518948+jduncanator@users.noreply.github.com>
166 lines
5.9 KiB
C#
166 lines
5.9 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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/// <summary>
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/// Buffer, used to store vertex and index data, uniform and storage buffers, and others.
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/// </summary>
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class Buffer : IRange, IDisposable
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{
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private readonly GpuContext _context;
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/// <summary>
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/// Host buffer handle.
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/// </summary>
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public BufferHandle Handle { get; }
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/// <summary>
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/// Start address of the buffer in guest memory.
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/// </summary>
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public ulong Address { get; }
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/// <summary>
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/// Size of the buffer in bytes.
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/// </summary>
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public ulong Size { get; }
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/// <summary>
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/// End address of the buffer in guest memory.
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/// </summary>
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public ulong EndAddress => Address + Size;
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private readonly (ulong, ulong)[] _modifiedRanges;
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private readonly int[] _sequenceNumbers;
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/// <summary>
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/// Creates a new instance of the buffer.
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/// </summary>
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/// <param name="context">GPU context that the buffer belongs to</param>
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/// <param name="address">Start address of the buffer</param>
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/// <param name="size">Size of the buffer in bytes</param>
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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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Handle = context.Renderer.CreateBuffer((int)size);
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_modifiedRanges = new (ulong, ulong)[size / PhysicalMemory.PageSize];
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_sequenceNumbers = new int[size / MemoryManager.PageSize];
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}
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/// <summary>
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/// Gets a sub-range from the buffer.
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/// </summary>
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/// <remarks>
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/// This can be used to bind and use sub-ranges of the buffer on the host API.
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/// </remarks>
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/// <param name="address">Start address of the sub-range, must be greater than or equal to the buffer address</param>
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/// <param name="size">Size in bytes of the sub-range, must be less than or equal to the buffer size</param>
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/// <returns>The buffer sub-range</returns>
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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(Handle, offset, (int)size);
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}
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/// <summary>
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/// Checks if a given range overlaps with the buffer.
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/// </summary>
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/// <param name="address">Start address of the range</param>
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/// <param name="size">Size in bytes of the range</param>
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/// <returns>True if the range overlaps, false otherwise</returns>
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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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/// <summary>
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/// Performs guest to host memory synchronization of the buffer data.
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/// </summary>
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/// <remarks>
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/// This causes the buffer data to be overwritten if a write was detected from the CPU,
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/// since the last call to this method.
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/// </remarks>
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/// <param name="address">Start address of the range to synchronize</param>
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/// <param name="size">Size in bytes of the range to synchronize</param>
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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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int count = _context.PhysicalMemory.QueryModified(address, size, ResourceName.Buffer, _modifiedRanges);
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for (int index = 0; index < count; 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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_context.Renderer.SetBufferData(Handle, offset, _context.PhysicalMemory.GetSpan(mAddress, (int)mSize));
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}
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}
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/// <summary>
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/// Performs copy of all the buffer data from one buffer to another.
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/// </summary>
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/// <param name="destination">The destination buffer to copy the data into</param>
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/// <param name="dstOffset">The offset of the destination buffer to copy into</param>
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public void CopyTo(Buffer destination, int dstOffset)
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{
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_context.Renderer.Pipeline.CopyBuffer(Handle, destination.Handle, 0, dstOffset, (int)Size);
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}
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/// <summary>
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/// Flushes a range of the buffer.
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/// This writes the range data back into guest memory.
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/// </summary>
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/// <param name="address">Start address of the range</param>
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/// <param name="size">Size in bytes of the range</param>
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public void Flush(ulong address, ulong size)
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{
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int offset = (int)(address - Address);
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byte[] data = _context.Renderer.GetBufferData(Handle, offset, (int)size);
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// TODO: When write tracking shaders, they will need to be aware of changes in overlapping buffers.
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_context.PhysicalMemory.WriteUntracked(address, data);
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}
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/// <summary>
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/// Disposes the host buffer.
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/// </summary>
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public void Dispose()
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{
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_context.Renderer.DeleteBuffer(Handle);
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}
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}
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} |