private void PrepareBuffers(int count)
{
List <Buffer> toRelease = new List <Buffer>();
for (int i = 0; i < count; i++)
{
toRelease.Add(allocator.GetTemporaryBuffer(defaultDescription));
}
for (int i = 0; i < count; i++)
{
allocator.ReleaseReference(toRelease[i]);
}
}
internal BufferPool(GraphicsResourceAllocator allocator, GraphicsDevice graphicsDevice, int size, CommandList clist = null)
{
constantBufferAlignment = graphicsDevice.ConstantBufferDataPlacementAlignment;
if (size % constantBufferAlignment != 0)
{
throw new ArgumentException($"size needs to be a multiple of constant buffer alignment ({constantBufferAlignment})", nameof(size));
}
this.allocator = allocator;
Size = size;
if (!UseBufferOffsets)
{
Data = Marshal.AllocHGlobal(size);
}
this.commandList = clist;
#if XENKO_GRAPHICS_API_VULKAN
constantBuffer = new Buffer[BUFFERS_PER_POOL];
for (int i = 0; i < constantBuffer.Length; i++)
{
constantBuffer[i] = allocator.GetTemporaryBuffer(new BufferDescription(Size, BufferFlags.ConstantBuffer, GraphicsResourceUsage.Dynamic));
}
#else
constantBuffer = new Buffer[1];
#endif
Reset();
}
internal BufferPool(GraphicsResourceAllocator allocator, GraphicsDevice graphicsDevice, int size, CommandList clist = null)
{
constantBufferAlignment = graphicsDevice.ConstantBufferDataPlacementAlignment;
if (size % constantBufferAlignment != 0)
{
throw new ArgumentException($"size needs to be a multiple of constant buffer alignment ({constantBufferAlignment})", nameof(size));
}
this.allocator = allocator;
Size = size;
if (!UseBufferOffsets)
{
Data = Marshal.AllocHGlobal(size);
}
this.commandList = clist;
#if XENKO_GRAPHICS_API_VULKAN
// make buffers now, so we don't have to during gameplay which can cause threading / performance problems
// eats some memory up, but memory is cheap compared to CPU / stability
if (PreallocatedBuffers == null)
{
PreallocatedBuffers = new Stack <Buffer>();
for (int i = 0; i < BUFFERS_PER_POOL * POOL_PREALLOCATION; i++)
{
PreallocatedBuffers.Push(allocator.GetTemporaryBuffer(new BufferDescription(Size, BufferFlags.ConstantBuffer, GraphicsResourceUsage.Dynamic)));
}
}
// pick our buffers, hopefully from preallocated pool
constantBuffer = new Buffer[BUFFERS_PER_POOL];
for (int i = 0; i < constantBuffer.Length; i++)
{
constantBuffer[i] = PreallocatedBuffers.Count > 0 ? PreallocatedBuffers.Pop() :
allocator.GetTemporaryBuffer(new BufferDescription(Size, BufferFlags.ConstantBuffer, GraphicsResourceUsage.Dynamic));
}
#else
constantBuffer = new Buffer[1];
#endif
Reset();
}
public void Reset()
{
if (UseBufferOffsets)
{
// Release previous buffer
if (constantBuffer != null)
{
allocator.ReleaseReference(constantBuffer);
}
constantBuffer = allocator.GetTemporaryBuffer(new BufferDescription(Size, BufferFlags.ConstantBuffer, GraphicsResourceUsage.Dynamic));
}
bufferAllocationOffset = 0;
}
public void Reset()
{
#if !XENKO_GRAPHICS_API_VULKAN
// Release previous buffer
if (constantBuffer[bufferIndex] != null)
{
allocator.ReleaseReference(constantBuffer[bufferIndex]);
}
constantBuffer[bufferIndex] = allocator.GetTemporaryBuffer(new BufferDescription(Size, BufferFlags.ConstantBuffer, GraphicsResourceUsage.Dynamic));
#else
bufferIndex = (bufferIndex + 1) % constantBuffer.Length;
#endif
bufferAllocationOffset = 0;
}