/// <summary>
/// Initializes a new instance of the <see cref="MeshReader"/> class.
/// </summary>
/// <param name="mesh">The mesh.</param>
/// <param name="definition">The mesh's definition data.</param>
public MeshReader(Mesh mesh, RenderGeometryResourceDefinition definition)
{
Mesh = mesh;
Definition = definition;
VertexStreams = new VertexBufferDefinition[StreamCount];
IndexBuffers = new IndexBufferDefinition[IndexBufferCount];
BindVertexStreams();
BindIndexBuffers();
}
/// <summary>
/// Opens an index buffer stream on one of the mesh's index buffers.
/// </summary>
/// <param name="definition">The index buffer definition.</param>
/// <param name="baseStream">The stream open on the mesh's resource data to use as a base stream.</param>
/// <returns>The index buffer stream if successful, or <c>null</c> otherwise.</returns>
public IndexBufferStream OpenIndexBufferStream(IndexBufferDefinition definition, Stream baseStream)
{
if (definition.Data.Address.Type != ResourceAddressType.Resource)
{
return(null); // Don't bother supporting non-resource addresses
}
baseStream.Position = definition.Data.Address.Offset;
return(new IndexBufferStream(baseStream, IndexBufferFormat.UInt16));
}
/// <summary>
/// Initializes a new instance of the <see cref="MeshReader"/> class.
/// </summary>
/// <param name="version">The engine version to target.</param>
/// <param name="mesh">The mesh.</param>
/// <param name="definition">The mesh's definition data.</param>
public MeshReader(EngineVersion version, Mesh mesh, RenderGeometryResourceDefinition definition)
{
_version = version;
Mesh = mesh;
Definition = definition;
VertexStreams = new VertexBufferDefinition[StreamCount];
IndexBuffers = new IndexBufferDefinition[IndexBufferCount];
BindVertexStreams();
BindIndexBuffers();
}
/// <summary>
/// Opens an index buffer reader on one of the mesh's index buffers.
/// </summary>
/// <param name="definition">The index buffer definition.</param>
/// <param name="baseStream">The stream open on the mesh's resource data to use as a base stream.</param>
/// <returns>The index buffer reader if successful, or <c>null</c> otherwise.</returns>
public IndexBufferReader OpenIndexBufferReader(IndexBufferDefinition definition, Stream baseStream)
{
if (definition.Data.Address.Type != ResourceAddressType.Resource)
return null; // Don't bother supporting non-resource addresses
baseStream.Position = definition.Data.Address.Offset;
return new IndexBufferReader(new BinaryReader(baseStream), IndexBufferFormat.UInt16);
}
