/// <summary>
/// Copy data from another buffer into this one.
/// </summary>
/// <param name="srcBuffer">The buffer from which to read the copied data.</param>
/// <param name="srcOffset">Offset in the source buffer at which to start reading.</param>
/// <param name="destOffset">Offset in the destination buffer to start writing.</param>
/// <param name="length">Length of the data to copy, in bytes.</param>
/// <param name="discardWholeBuffer">If true, will discard the entire contents of this buffer before copying.</param>
public virtual void CopyData(HardwareBuffer srcBuffer, int srcOffset, int destOffset, int length, bool discardWholeBuffer)
{
// lock the source buffer
IntPtr srcData = srcBuffer.Lock(srcOffset, length, BufferLocking.ReadOnly);
// write the data to this buffer
this.WriteData(destOffset, length, srcData, discardWholeBuffer);
// unlock the source buffer
srcBuffer.Unlock();
}
/// <summary>
/// Must be called after a call to <code>Lock</code>. Unlocks the vertex buffer in the hardware
/// memory.
/// </summary>
public virtual void Unlock()
{
Debug.Assert(this.IsLocked, "Cannot unlock this buffer if it isn't locked to begin with.");
if (useShadowBuffer && shadowBuffer.IsLocked)
{
shadowBuffer.Unlock();
// potentially update the real buffer from the shadow buffer
UpdateFromShadow();
}
else
{
// unlock the real deal
this.UnlockImpl();
isLocked = false;
}
}
/// <summary>
/// Copy data from another buffer into this one.
/// </summary>
/// <param name="srcBuffer">The buffer from which to read the copied data.</param>
/// <param name="srcOffset">Offset in the source buffer at which to start reading.</param>
/// <param name="destOffset">Offset in the destination buffer to start writing.</param>
/// <param name="length">Length of the data to copy, in bytes.</param>
/// <param name="discardWholeBuffer">If true, will discard the entire contents of this buffer before copying.</param>
public virtual void CopyData(HardwareBuffer srcBuffer, int srcOffset, int destOffset, int length, bool discardWholeBuffer)
{
// lock the source buffer
IntPtr srcData = srcBuffer.Lock(srcOffset, length, BufferLocking.ReadOnly);
// write the data to this buffer
this.WriteData(destOffset, length, srcData, discardWholeBuffer);
// unlock the source buffer
srcBuffer.Unlock();
}
