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Date: Thu, 24 Apr 2003 15:13:47 -0400 From: Shawn Kirst Subject: SDL-1.2.5 patch to add ARB_multisample support Attached is a patch I have written for SDL-1.2.5 that adds ARB_multisample support. I only have the X11 and Win32 video patched. The Win32 patch also adds support for WGL_ARB_pixel_format, as it was required for getting a multisample capable pixel format. No additional GL header files are required to compile on either platform (though you need an up-to-date glx.h for X11). Requesting a multisample pixel format is made possible using SDL_GL_SetAttribute with the two new SDL_GLattr's I've added (SDL_GL_SAMPLE_BUFFERS and SDL_GL_SAMPLES). I've been using SDL in my projects for quite a while now, so I am happy to contribute back to the project. Now you can have and control FSAA in your SDL/GL apps at the application level!
author Sam Lantinga <slouken@libsdl.org>
date Tue, 22 Jul 2003 15:10:06 +0000
parents bce7171e7a85
children 8bedd6d61642
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README by Mike Gorchak <mike@malva.ua>, <lestat@i.com.ua>

    OpenGL in window mode  works well  and  stable, in fullscreen
mode too, but fullscreen mode has not been heavily tested.
    If you have QNX RtP 6.1.0 w/ or w/o Patch A you must download
new Photon3D runtime from http://developers.qnx.com. The versions
of OS before 6.1.0 are not supported.

Problems:
1. While  creating  OpenGL  context  software  renderer  mode  is
   artificially selected (QSSL made acceleration only for  Voodoo
   boards in fullscreen mode, sorry but I don't have  this board,
   if you want acceleration - you may remove some line  in source
   code).
2. Photon has some errors in detecting  how  much bits  per pixel
   videomode has.
3. No  shared  libraries  yet.  We  need  manually  set  flag  to
   'configure' --disable-shared.
4. Due to Photon API limitation, flag SDL_HWSURFACE supported on-
   ly in case of desktop bpp is equal requested bpp in window mo-
   de.

Some building issues:

    Run configure script without x11 support, e.g.:

    a) for OpenGL support:
    ./configure --prefix=/usr/local \
                --disable-video-x11 \
                --disable-shared

    b) without OpenGL support:
    ./configure --prefix=/usr/local \
                --disable-video-x11 \
                --disable-shared    \
                --disable-video-opengl

    In test directory  also run  ./configure  script  without x11
support, e.g.:

    ./configure  --with-sdl-prefix=/usr/local      \
                 --with-sdl-exec-prefix=/usr/local \
                 --prefix=/usr/local --without-x