4 This file contains information about Wine's implementation of
7 The current version requires :
8 * Mesa (tested with version 3.1 beta)
11 To minimize the impact on DirectDraw (i.e. to reuse most of the code
12 already done for DirectDraw), I decided not to start with an
13 implementation based on GLX, but on OSMesa. This way, all the OpenGL
14 rendering are done in a 'private' memory buffer, buffer that will
15 copied back to the DirectDraw Surface each time a 3D scene
16 finishes. It is not optimal for execution speed (on each frame, the
17 OpenGL buffer is converted from 32 to 16 bpp and copied onto the
18 screen) but is for development (I had almost nothing to change in
19 DirectDraw). Moreover, 99 % of the code in the Direct3D implementation
20 is 'device independant' (i.e. GLX / OSMesa / whatever), so that
21 changing to GLX will have only a minor impact on Direct3D's code.
26 TODO (well, once the code will be put in the dll/ddraw directory)
31 Some programs with which I tested the code :
33 * BOIDS.EXE (DX5.0) that comes with the 5.2 DirectX SDK : works
34 great. Only thing missing is the texturing and transparency on the
35 spinning gobes. Lighting seems to be a bit different than the Real
38 * Tomb Raider II (DX5.0) : works perfectly (but slowly). All the
39 calls needed to make TR2 work have been written.
41 * Jedi Knight (DX3.0) : does not start
43 * Shadow of the Empire demo (DX3.0) : runs but does not display
48 * finish working on Execute Buffers (i.e. Direct3D 3.0)
49 * real GLX implementation (will need a complete rewrite of DirectDraw
50 also) to have 3DFx support
51 * restructuration of all the DDRAW.DLL (put that in the dll
52 directory, better separation of 'drivers, ...)
53 * start looking into DirectX 6.0
54 * inquire on Mesa / XFree86 mailing lists about direct access to
55 display hardware (for games such as Tomb Raider II that displays
56 vertices that are already in screen coordinates)
57 * look into thread safeness...
60 Lionel Ulmer - ulmer@directprovider.net
61 Last updated : Sun Jan 10 1999