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using Silk.NET.Vulkan;
using System;
namespace Ryujinx.Graphics.Vulkan
{
struct BufferState : IDisposable
{
public static BufferState Null => new BufferState(null, 0, 0);
private readonly Auto<DisposableBuffer> _buffer;
private readonly int _offset;
private readonly int _size;
private readonly ulong _stride;
private readonly IndexType _type;
public BufferState(Auto<DisposableBuffer> buffer, int offset, int size, IndexType type)
{
_buffer = buffer;
_offset = offset;
_size = size;
_stride = 0;
_type = type;
buffer?.IncrementReferenceCount();
}
public BufferState(Auto<DisposableBuffer> buffer, int offset, int size, ulong stride = 0UL)
{
_buffer = buffer;
_offset = offset;
_size = size;
_stride = stride;
_type = IndexType.Uint16;
buffer?.IncrementReferenceCount();
}
public void BindIndexBuffer(Vk api, CommandBufferScoped cbs)
{
if (_buffer != null)
{
api.CmdBindIndexBuffer(cbs.CommandBuffer, _buffer.Get(cbs, _offset, _size).Value, (ulong)_offset, _type);
}
}
public void BindTransformFeedbackBuffer(VulkanRenderer gd, CommandBufferScoped cbs, uint binding)
{
if (_buffer != null)
{
var buffer = _buffer.Get(cbs, _offset, _size).Value;
gd.TransformFeedbackApi.CmdBindTransformFeedbackBuffers(cbs.CommandBuffer, binding, 1, buffer, (ulong)_offset, (ulong)_size);
}
}
public void BindVertexBuffer(VulkanRenderer gd, CommandBufferScoped cbs, uint binding)
{
if (_buffer != null)
{
var buffer = _buffer.Get(cbs, _offset, _size).Value;
if (gd.Capabilities.SupportsExtendedDynamicState)
{
gd.ExtendedDynamicStateApi.CmdBindVertexBuffers2(
cbs.CommandBuffer,
binding,
1,
buffer,
(ulong)_offset,
(ulong)_size,
_stride);
}
else
{
gd.Api.CmdBindVertexBuffers(cbs.CommandBuffer, binding, 1, buffer, (ulong)_offset);
}
}
}
public void Dispose()
{
_buffer?.DecrementReferenceCount();
}
}
}
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