/// <summary>
/// Initializes a new instance of the <see cref="PrimitiveBatch{T}" /> class.
/// </summary>
/// <param name="graphicsDevice">The device.</param>
/// <param name="maxIndices">The max indices.</param>
/// <param name="maxVertices">The max vertices.</param>
public PrimitiveBatch(GraphicsDevice graphicsDevice, int maxIndices = DefaultBatchSize * 3, int maxVertices = DefaultBatchSize)
: base(graphicsDevice, maxIndices, maxVertices, Utilities.SizeOf <T>())
{
var vertexElements = VertexElement.FromType <T>();
// If the type has some VertexElement description, we can use them directly to setup the vertex input layout.
if (vertexElements != null)
{
vertexInputLayout = VertexInputLayout.New(0, vertexElements);
}
}
protected virtual void ReadVertexBuffer(ref VertexBufferBinding vertexBufferBinding)
{
// Read the number of vertices
int count = Reader.ReadInt32();
// Read vertex elements
int vertexElementCount = Reader.ReadInt32();
var elements = new VertexElement[vertexElementCount];
for (int i = 0; i < vertexElementCount; i++)
{
elements[i].Serialize(this);
}
vertexBufferBinding.Layout = VertexInputLayout.New(0, elements);
// Read Vertex Buffer
int sizeInBytes = Reader.ReadInt32();
SerializeMemoryRegion(SharedMemoryPointer, sizeInBytes);
vertexBufferBinding.Buffer = Buffer.New(GraphicsDevice, new DataPointer(SharedMemoryPointer, sizeInBytes), sizeInBytes / count, BufferFlags.VertexBuffer, ResourceUsage.Immutable);
}