/// <summary>
/// Creates a new vertex buffer implementation.
/// </summary>
/// <param name="declaration">Declaration to use</param>
/// <param name="vertexCount">Number of vertices</param>
/// <param name="usage">Resource usage</param>
/// <returns>
/// Vertex buffer implementation
/// </returns>
public VertexBufferImplementation CreateVertexBufferImplementation(VertexDeclaration declaration, int vertexCount, ResourceUsage usage)
{
D3D10VertexBufferImplementation impl = new D3D10VertexBufferImplementation(_renderer, declaration, vertexCount, usage);
SetGraphicsID(impl);
return(impl);
}
/// <summary>
/// Creates a new vertex buffer implementation populated with the array of data buffers, one buffer for each vertex element.
/// These must match up with the defined vertex declaration elements and be of the same number.
/// </summary>
/// <param name="declaration">Declaration to use</param>
/// <param name="usage">Resource usage</param>
/// <param name="data">DataBuffers to copy from, one for each vertex element. Total stride and size of each element must match the vertex declaration</param>
/// <returns></returns>
public VertexBufferImplementation CreateVertexBufferImplementation(VertexDeclaration declaration, ResourceUsage usage, params DataBuffer[] data)
{
D3D10VertexBufferImplementation impl = new D3D10VertexBufferImplementation(_renderer, declaration, usage, data);
SetGraphicsID(impl);
return(impl);
}
private void SetVertexBuffers(VertexBufferBinding[] vertexBuffers, int vbCount)
{
//Do some quick validation first
D3D10Helper.CheckDisposed(_graphicsDevice);
if (vbCount > _adapter.MaximumVertexStreams || vbCount > vertexBuffers.Length)
{
throw new ArgumentOutOfRangeException("vertexBuffers", "Number of vertex buffers to bind to the device exceeds the maximum number of streams.");
}
//Clear the currently bound set of buffers
Array.Clear(_currentVertexBuffers, 0, _currentVertexBufferCount);
Array.Clear(_vertexBindings, 0, _currentVertexBufferCount);
_currentVertexBufferCount = 0;
//Iterate over each buffer, check if it's valid and add it to the bindings array
for (int i = 0; i < vbCount; i++)
{
VertexBufferBinding binding = vertexBuffers[i];
VertexBuffer vb = binding.VertexBuffer;
//Ensure the buffer exists
D3D10Helper.CheckDisposed(vb);
_currentVertexBuffers[_currentVertexBufferCount] = binding;
D3D10VertexBufferImplementation impl = (D3D10VertexBufferImplementation)vb.Implementation;
_vertexBindings[_currentVertexBufferCount] = new D3D.VertexBufferBinding(impl.D3DVertexBuffer, vb.VertexDeclaration.VertexStride, binding.VertexOffset);
_currentVertexBufferCount++;
}
//Set the D3D10 bindings to the device
if (vbCount == 1)
{
_graphicsDevice.InputAssembler.SetVertexBuffers(0, _vertexBindings[0]);
}
else
{
_graphicsDevice.InputAssembler.SetVertexBuffers(0, _vertexBindings);
}
}
