- minor indentation changes
- fix SELECTARG2 behavior (with help from Lionel Ulmer)
- surface locking/unlocking (only rendering and textures surfaces
supported now)
- beginning of Target/Front surface support
- try to get D3DTOP_SELECTARG_* working
- implemented D3DTOP_SUBTRACT: currently only if OpenGL1.3 is used, we
have to use GL_SUBTRACT_ARB for other versions
- AddRef/Release where needed
- use IUnknown* instead void*
- fix many GetDevice using AddRef
- fix IDirect3DSurface8Impl_GetContainer using QueryInterface
- beginning of shaders support (Vertex and Pixel Shaders 1.1 on
DirectX8)
- beginning of D3DX8 support the D3D8 utility API (very basic, only
the core header)