D3D7 -> WineD3D, 2nd attempt
stefandoesinger at gmx.at
Wed Oct 19 13:02:06 CDT 2005
I have read a little bit more into the concept of vertex buffering, and I
wanted to make sure that I've understood everything correctly and ask some
According to some documents I've found on the internet and the description in
the DX7 SDK, the the application uses Vertex Buffers to store some vertex
declarations. Therefore it Locks() the buffer, writes some vertex data into
the buffer and Unlocks() it. When it calls DrawIndexedPrimitiveVB, it tells
D3D7 to render some vertices from the buffers memory, based on the index it
The purpose for this is optimisation, so the graphics driver knows about the
vertices in the buffer and can do some pre-calculations.
So what the implementation of DrawIndexedPrimitiveVB has to do is to read the
vertex definitions from the buffer and pass it to the rendering functions.
Which render function does WineD3D have? From the headers it looks like
drawPrimitive() is the main function here.
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