public void Allocate(GraphicsDevice graphicsDevice, int size, BufferPoolAllocationType type, ref BufferPoolAllocationResult bufferPoolAllocationResult)
{
var result = bufferAllocationOffset;
bufferAllocationOffset += size;
// Align next allocation
// Note: total Size should be a multiple of alignment, so that CanAllocate() and Allocate() Size check matches
bufferAllocationOffset = (bufferAllocationOffset + constantBufferAlignment - 1) / constantBufferAlignment * constantBufferAlignment;
if (bufferAllocationOffset > Size)
{
throw new InvalidOperationException();
}
// Map (if needed)
if (useBufferOffsets && mappedConstantBuffer.Resource == null)
{
Map(commandList);
}
bufferPoolAllocationResult.Data = Data + result;
bufferPoolAllocationResult.Size = size;
if (useBufferOffsets)
{
bufferPoolAllocationResult.Uploaded = true;
bufferPoolAllocationResult.Offset = result;
bufferPoolAllocationResult.Buffer = constantBuffer;
}
else
{
bufferPoolAllocationResult.Uploaded = false;
if (type == BufferPoolAllocationType.UsedMultipleTime)
{
if (bufferPoolAllocationResult.Buffer == null || bufferPoolAllocationResult.Buffer.SizeInBytes != size)
{
// Release old buffer in case size changed
if (bufferPoolAllocationResult.Buffer != null)
{
bufferPoolAllocationResult.Buffer.Dispose();
}
bufferPoolAllocationResult.Buffer = Buffer.Constant.New(graphicsDevice, size, graphicsDevice.Features.HasResourceRenaming ? GraphicsResourceUsage.Dynamic : GraphicsResourceUsage.Default);
//bufferPoolAllocationResult.Buffer = Buffer.New(graphicsDevice, size, BufferFlags.ConstantBuffer);
}
}
}
}
public void Allocate(GraphicsDevice graphicsDevice, int size, BufferPoolAllocationType type, ref BufferPoolAllocationResult bufferPoolAllocationResult)
{
var result = bufferAllocationOffset;
bufferAllocationOffset += size;
if (bufferAllocationOffset > Size)
{
throw new InvalidOperationException();
}
// TODO: We only implemented the D3D11/ES 2.0 compatibility mode
// Need to write code to take advantage of cbuffer offsets later
bufferPoolAllocationResult.Data = Data + result;
bufferPoolAllocationResult.Size = size;
bufferPoolAllocationResult.Uploaded = false;
if (type == BufferPoolAllocationType.UsedMultipleTime)
{
if (bufferPoolAllocationResult.Buffer == null || bufferPoolAllocationResult.Buffer.SizeInBytes != size)
{
// Release old buffer in case size changed
if (bufferPoolAllocationResult.Buffer != null)
{
bufferPoolAllocationResult.Buffer.Dispose();
}
bufferPoolAllocationResult.Buffer = Buffer.Constant.New(graphicsDevice, size);
}
}
}
