/// <summary>
/// Create a wrapper for a drawprim batch.
/// </summary>
/// <param name="src"></param>
public Batch(BoundVBuf src)
{
this.data = src;
numVerts = src.Buffer.VertexCount;
Debug.Assert((numVerts & 0x3) == 0);
int numQuads = numVerts / 4;
numTris = numQuads * 2;
}
/// <summary>
/// Return the center position along Y for the given buffer.
/// </summary>
/// <param name="buf"></param>
/// <returns></returns>
private static float CenterY(BoundVBuf buf)
{
return((buf.Bounds.Max.Y + buf.Bounds.Min.Y) * 0.5f);
}
/// <summary>
/// Return the center position along X for the given buffer.
/// </summary>
/// <param name="buf"></param>
/// <returns></returns>
private static float CenterX(BoundVBuf buf)
{
return((buf.Bounds.Max.X + buf.Bounds.Min.X) * 0.5f);
}
