/// <summary>
/// Merges all the Buffer objects into a single, big one.
/// </summary>
/// <remarks>
/// When merging the buffers, it also adjusts the BufferView offsets so the data they point to remains the same.
/// </remarks>
public void MergeBuffers()
{
// retrieve all buffers and merge them into a single, big buffer
var views = _bufferViews
.OrderByDescending(item => item.Data.Count)
.ToArray();
if (views.Length <= 1)
{
return; // nothing to do.
}
var sbbuilder = new _StaticBufferBuilder(0);
foreach (var bv in views)
{
bv._ConvertToStaticBuffer(sbbuilder);
}
this._buffers.Clear();
var b = new Buffer
{
_Data = sbbuilder.ToArray()
};
this._buffers.Add(b);
}
internal void _ConvertToStaticBuffer(_StaticBufferBuilder targetBuffer)
{
// retrieve old buffer
var srcBuf = this.LogicalParent.LogicalBuffers[this._buffer]._Data;
var data = new Byte[this._byteLength];
Array.Copy(srcBuf, this._byteOffset ?? 0, data, 0, this._byteLength);
// append data to new buffer
this._buffer = targetBuffer.BufferIndex;
this._byteLength = data.Length;
this._byteOffset = targetBuffer.Append(data);
}
