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diff --git a/docs/README.WINDML b/docs/README.WINDML new file mode 100644 index 0000000000..a227d42b4d --- /dev/null +++ b/docs/README.WINDML @@ -0,0 +1,144 @@ + + WindML Driver for Mesa 3.5 + + +Requirements +------------ + +Tornado 2 + WindML, Cumulative Patchs are recommended. + +I suppose you have a valid WindML installation. Double buffer hardware +gives better performance than double buffer software so if you can +compile your WindML driver with this option, just do it. I/O +redirection is adviced in target server. + +Tested on +--------- + +During the development, my main target was a CoolMonster: +- Video card: CT69000 +- CPU: PENTIUM 266MHz + +and my host a Windows NT + Tornado 2. + + +Installation +------------ + +1. Mesa sources must be in root directory (C:\) + +2. Add the following line to your torVars.bat: +set MESA_BASE=C:\Mesa + +OR copy the new torVars.bat in your bin path: +c:/Mesa/src/ugl/tornado/torVars.sample -> +/mnt/nt/Tornado/host/x86-win32/bin/torVars (for example) + +3. In a command prompt: +$ torVars +$ cd c:\Mesa +$ make -f Makefile.ugl CPU=PENTIUM + +Take a long while... + +5. Include all the files from ugldemos folder to build some downloadable + application modules + +4. Download UGL/Mesa object files on target + +For example via the WindShell: +ld < c:\Tornado\target\lib\objMesaGL.o +ld < c:\Tornado\target\lib\objMesaUGL.o +ld < c:\Tornado\target\lib\objMesaGLU.o +ld < c:\Tornado\target\lib\objGLUTshapes.o +ld < c:\Tornado\target\lib\objMesaOS.o + +6. Download the application modules. + +7. In WindShell, run: +-> uglalldemos + +During the show some messages will appear, it provides some useful +information on key management. + + +Coding +------ + +Sample Usage: + +In addition to the usual ugl calls to initialize UGL, (may be find an +input driver), you must do the following to use the UGL/Mesa interface: + +1. Call uglMesaCreateContext() to create a UGL/Mesa rendering context, + given the display format. + +2. Call uglMesaMakeCurrent() to bind the UGL/Mesa buffers to an + UGL/Mesa Context and to make the context the current one. + +3. Make gl* calls to render your graphics. + +4. Use uglMesaSwapBuffers() when double buffering to swap front/back buffers. + +5. Before the UGL is destroyed, call MesaDestroyContext(). + +6. Before exiting, call if required uglEventQDestroy and then uglDeinitialize(); + +Limitations +----------- + +I found the following limitations in my driver : + - Color Indexed management is only in 8 bits + - The front and the back buffer must have the structure (mode and + size). A structure umc->buffer is requisite if the front and back + buffers are different. + - It isn't possible to mix UGL/OpenGL application with a software + double buffer (to fix) + +Modifications +------------ + +New files in Mesa: +- Makefile.ugl +- rules.windmlmesa +- docs/README.UGL +- include/GL/uglmesa.h +- si-glu/Makefile.ugl +- src/Makefile.ugl +- src/ugl/torGLUTShapesInit.c +- src/ugl/torMesaUGLInit.c +- src/ugl/ugl_api.c +- src/ugl/ugl_dd.c +- src/ugl/ugl_glutshapes.c +- src/ugl/ugl_line.c +- src/ugl/ugl_span.c +- src/ugl/ugl_tri.c +- src/ugl/uglmesaP.h +- ugldemos/* + +Modified files in Tornado 2.0: +- c:\Tornado\host\x86-win32\bin\torVars.bat +rem Command line build environments +set WIND_HOST_TYPE=x86-win32 +set WIND_BASE=C:\Tornado +set MESA_BASE=C:\Mesa +set PATH=%WIND_BASE%\host\%WIND_HOST_TYPE%\bin;%PATH% +- c:\Tornado\target\config\comps\VxWorks\01uglmesa.cdf +- c:\Tornado\target\h\GL\* + +Todo +---- +- GCC 2.96, ASM compilation + +Thanks to: +---------- + +Precision Insight team for their great job around Mesa, XFree, and DRI. +Wind River Systems to take me as an intern. + + +Stephane Raimbault +<stephane.raimbault@windriver.com> +<stephane.raimbault@deesse.univ-lemans.fr> + +July 24, 2001 |