Re: [PATCH 1/3] d3dx9/line: Implemented ID3DXLine's Draw method.

[Matteo Bruni]

2011/6/30 Charles Welton :
> -
>    memcpy(buffer_mem, vertices, size);

There is no need to allocate and write into your own buffer then copy
the content, you can directly write into the vertex buffer.

A more important issue: MSDN says "The ID3DXLine interface implements
line drawing using textured triangles", which is probably true (as far
as I know there is otherwise no support in D3D9 to
antialiased/stippled/wide lines, which are instead supported by
ID3DXLine). So, drawing with D3DPT_LINESTRIP primitives in general is
probably not the right way...