/// <summary>
/// constructor
/// </summary>
/// <param name="physicalBuffer"></param>
public DataChunk(IPhysicalGraphicsBuffer physicalBuffer)
{
PhysicalBuffer = physicalBuffer;
Available = physicalBuffer.Size;
GraphicsStreams = new ArrayList();
FreeSlots = new ArrayList( );
FreeSlots.Add(new Slot(0, Available));
}
/// <summary>
/// disposes online data
/// </summary>
public void DisposeOnlineData()
{
if (HasOnlineData())
{
BufferManager.RemoveBuffer(this);
}
physicalBuffer = null;
changeCounter = 0;
}
/// <summary>
/// adds a new DataChunk for the given stream format
/// </summary>
/// <param name="key">of entry</param>
/// <param name="stream">stream to create DataChunk for</param>
/// <returns></returns>
protected DataChunk AddDataChunk(object key, IGraphicsStream stream)
{
Log.Spam("Create stream " + stream.ToString());
ArrayList list = table[key] as ArrayList;
IPhysicalGraphicsBuffer physical = CreatePhysicalBuffer(stream);
DataChunk chunk = new DataChunk(physical);
list.Add(chunk);
return(chunk);
}
/// <summary>
/// uploads from offline to online data
/// </summary>
public void Upload()
{
if (!IsSoftware)
{
if (physicalBuffer == null)
{
physicalBuffer = BufferManager.GetBuffer(this);
}
physicalBuffer.Upload(Data, position, 0, Data.Length);
this.changeCounter = physicalBuffer.ChangeCounter;
}
}
/// <summary>
/// uploads from offline to online data
/// </summary>
/// <param name="start">The start index for uploading.</param>
/// <param name="length">The number of elements to upload</param>
public void Upload(int start, int length)
{
if (!IsSoftware)
{
if (physicalBuffer == null)
{
physicalBuffer = BufferManager.GetBuffer(this);
}
Purple.Profiling.Profiler.Instance.Begin("Upload");
physicalBuffer.Upload(Data, position, start, length);
Profiling.Profiler.Instance.End("Upload");
this.changeCounter = physicalBuffer.ChangeCounter;
}
}
/// <summary>
/// frees ressources
/// </summary>
public void Dispose()
{
PhysicalBuffer.Dispose();
PhysicalBuffer = null;
}