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using Ryujinx.Common.Memory;
using Ryujinx.Graphics.GAL;
using Silk.NET.Vulkan;
using System;
using System.Collections.Generic;
using VkFormat = Silk.NET.Vulkan.Format;
namespace Ryujinx.Graphics.Vulkan
{
class TextureBuffer : ITexture
{
private readonly VulkanRenderer _gd;
private BufferHandle _bufferHandle;
private int _offset;
private int _size;
private Auto<DisposableBufferView> _bufferView;
private Dictionary<GAL.Format, Auto<DisposableBufferView>> _selfManagedViews;
private int _bufferCount;
public int Width { get; }
public int Height { get; }
public VkFormat VkFormat { get; }
public float ScaleFactor { get; }
public TextureBuffer(VulkanRenderer gd, TextureCreateInfo info, float scale)
{
_gd = gd;
Width = info.Width;
Height = info.Height;
VkFormat = FormatTable.GetFormat(info.Format);
ScaleFactor = scale;
gd.Textures.Add(this);
}
public void CopyTo(ITexture destination, int firstLayer, int firstLevel)
{
throw new NotSupportedException();
}
public void CopyTo(ITexture destination, int srcLayer, int dstLayer, int srcLevel, int dstLevel)
{
throw new NotSupportedException();
}
public void CopyTo(ITexture destination, Extents2D srcRegion, Extents2D dstRegion, bool linearFilter)
{
throw new NotSupportedException();
}
public ITexture CreateView(TextureCreateInfo info, int firstLayer, int firstLevel)
{
throw new NotSupportedException();
}
public ReadOnlySpan<byte> GetData()
{
return _gd.GetBufferData(_bufferHandle, _offset, _size);
}
public ReadOnlySpan<byte> GetData(int layer, int level)
{
return GetData();
}
public void Release()
{
if (_gd.Textures.Remove(this))
{
ReleaseImpl();
}
}
private void ReleaseImpl()
{
if (_selfManagedViews != null)
{
foreach (var bufferView in _selfManagedViews.Values)
{
bufferView.Dispose();
}
_selfManagedViews = null;
}
_bufferView?.Dispose();
_bufferView = null;
}
public void SetData(SpanOrArray<byte> data)
{
_gd.SetBufferData(_bufferHandle, _offset, data);
}
public void SetData(SpanOrArray<byte> data, int layer, int level)
{
throw new NotSupportedException();
}
public void SetData(SpanOrArray<byte> data, int layer, int level, Rectangle<int> region)
{
throw new NotSupportedException();
}
public void SetStorage(BufferRange buffer)
{
if (_bufferHandle == buffer.Handle &&
_offset == buffer.Offset &&
_size == buffer.Size &&
_bufferCount == _gd.BufferManager.BufferCount)
{
return;
}
_bufferHandle = buffer.Handle;
_offset = buffer.Offset;
_size = buffer.Size;
_bufferCount = _gd.BufferManager.BufferCount;
ReleaseImpl();
}
public BufferView GetBufferView(CommandBufferScoped cbs)
{
if (_bufferView == null)
{
_bufferView = _gd.BufferManager.CreateView(_bufferHandle, VkFormat, _offset, _size);
}
return _bufferView?.Get(cbs, _offset, _size).Value ?? default;
}
public BufferView GetBufferView(CommandBufferScoped cbs, GAL.Format format)
{
var vkFormat = FormatTable.GetFormat(format);
if (vkFormat == VkFormat)
{
return GetBufferView(cbs);
}
if (_selfManagedViews != null && _selfManagedViews.TryGetValue(format, out var bufferView))
{
return bufferView.Get(cbs, _offset, _size).Value;
}
bufferView = _gd.BufferManager.CreateView(_bufferHandle, vkFormat, _offset, _size);
if (bufferView != null)
{
(_selfManagedViews ??= new Dictionary<GAL.Format, Auto<DisposableBufferView>>()).Add(format, bufferView);
}
return bufferView?.Get(cbs, _offset, _size).Value ?? default;
}
}
}
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