WMesa-2.3 is the Windows version of Brian Paul's Mesa-2.3, an OpenGL like, 3-D graphics library.( refer to the reademe.original_mesa.txt)
WMesa-2.3 is distributed in three types:
To get
1. All the source code
download wmesa-2.3.src.zip
2. Binaries of libraries that can be linked to OpenGL application in download wmesa-2.3.binaries.zip
3. Only the files needed by WMesa and not included in Brian's Mesa
download wmesa-2.3.minimal.zip
Features:
1. WMesa-2.3 works on Windos 95, Windows NT 3.51 and Windows NT 4.0
2. WMesa-2.3 can render stereo graphics that support Head Mounted Displays such Virtual I/O's I-glasses.
3. WMesa takes the advantage of Microsoft Direct Draw, hence can dynamically change display mode as well as using the screen exclusively.
4. Many accelaration functions for rendering triangle added, now the rendering speed is much faster.(As fast as the mesa run in Linux.)
Platforms:
Display with DibSection works for Windows 95 , Windows NT 3.51 or Windows NT 4.0.
Display with Direct Draw works for Windows 95 and Windows NT 4.0 with Direct Draw installed.
WinG is required if dither feature desired.
Installation:
1. From the source files
Extract all the files with directory name included
Compile the four libraries: winmesa.lib, tk.lib, winglu.lib and glaux.lib. by opening and building the *.mak files in \mesa-2.3\msvc. Before compiling, add \mesa-2.3\include to the list of include directories. By default, the *.lib files are put at \mesa-2.3\lib
2. From binaries
Extract all the libraries with directory name included. By default, the *.lib files are put at \mesa-2.3\lib
3. From the minimal package
First download and extract Brian Paul's Mesa-2.3. Then extract wmesa-2.3.minmal.zip, overlab all the files with same name. Then build the libraries and demos as the procedure of building from source files.
To work in Direct Draw mode, add macro DDRAW as a variable of compiler and add ddraw.lib to the linking libraries. By default, the macro is undefined.
In Windows 95, if direct draw used, applications can not be debugged in MSDEV with breakpoints set.
In both Windows 95 and Windows NT, if fullscreen mode specified, applications can not be debugged in MSDEV with breakpoints set.
The driver is mainly designed for double buffer, hence the performance for single buffer mode is not changed.( very slow). Single buffer is not supported in color index mode.
Color index mode only works by setting the display to 256-color mode, either by using the Control Panel of Windows or by editing the initializtion file.
When the setting of display mode by direct draw failed, the driver will just given an error message in the console and try to use the current display mode.
Wing is required to surpport dither operation. If you don't like it, define macro NO_DITHER for compiler, then the driver can be compiled without bothout wing.h and wing32.lib, and can run without wing32.dll. A simple package of Wing is available on the same ftp site.(ftp://sun.aiar.xjtu.edu.cn/pub/ddmesa/wing.simple.zip
If any bugs different from the above detected, please inform me.
