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wiki:development:glx-xlib-workaround [2017/11/04 11:28]
ionic Do not record development tools in world file if not strictly necessary.
wiki:development:glx-xlib-workaround [2020/06/02 19:12]
uli42
Line 11: Line 11:
 Use a wrapper/proxy library provided by Mesa. The applications will use the supplied libGL.so, which in turn uses the lib interface to talk to the X server (nxagent) rather than the GLX interface. From the applications' perspective, they have GLX 1.4. Use a wrapper/proxy library provided by Mesa. The applications will use the supplied libGL.so, which in turn uses the lib interface to talk to the X server (nxagent) rather than the GLX interface. From the applications' perspective, they have GLX 1.4.
  
 +
 +==== Mesa 19 and newer ====
 +Please note: the instructions below are valid for olter Mesa releases. In Mesa 19 //meson// is recommended for building. Please consult https://mesa3d.org/llvmpipe.html for a basic compilation instruction. Since those instructions will not work out of the box (Error: "gallium-xlib conflicts
 +with any dri driver") as of Mesa 19.3.2 you need to call //meson// with some further parameters like this:
 +<code>
 +$ meson -D glx=gallium-xlib -D gallium-drivers=swrast -D platforms=x11 -D dri3=false -D dri-drivers="" -D vulkan-drivers="" -D buildtype=release -D optimization=3
 +$ ninja
 +</code>
 +
 +==== Debian Buster and Mesa 19.3.2 ====
 +
 +<code>
 +$ (download and extract tarball from mesa3d.org)
 +$ cd mesa-19.3.2
 +$ mkdir build
 +$ cd build
 +$ meson -D glx=gallium-xlib -D gallium-drivers=swrast -D platforms=x11 -D dri3=false -D dri-drivers="" -D vulkan-drivers="" -D buildtype=release -D optimization=3
 +$ ninja
 +$ LD_LIBRARY_PATH=`pwd`/src/gallium/targets/libgl-xlib/:${LD_LIBRARY_PATH} glxinfo | grep 'GLX version:'
 +</code>
 +
 +If you want you can copy the libgl-xlib directory to some location of your likes and write a small wrapper "x2goglx" for starting GLX applications:
 +<code>
 +#!/bin/sh
 +LD_LIBRARY_PATH=<your directory>/libgl-xlib exec "$@"
 +</code>
 +
 +<code>
 +$ chmod u+rx x2goglx
 +$ x2goglx glxinfo
 +</code>
 ==== Ubuntu 14.04 ==== ==== Ubuntu 14.04 ====
  
Line 37: Line 68:
 mkdir -p /usr/local/share/mesa-libgl-xlib mkdir -p /usr/local/share/mesa-libgl-xlib
 </code> </code>
 +
 Place the following line in a suitable place - either in your .bashrc or in the script that calls the individual application: Place the following line in a suitable place - either in your .bashrc or in the script that calls the individual application:
 <code> <code>
Line 42: Line 74:
 </code> </code>
  
-Configure portage to keep the working area that is used to compile the Mesa package. Before doing so, ensure that the USE flags for media-libs/mesa are configured to your liking.+Configure portage to extract and patch the Mesa package into a known location. Before doing so, ensure that the USE flags for media-libs/mesa are configured to your liking.
  
 <code> <code>
-export MESA_VERSION=$(equery -q list media-libs/mesa -F '$version'+mesa_version="$(equery -q list media-libs/mesa -F '$version')" 
-ebuild "/usr/portage/media-libs/mesa/mesa-${MESA_VERSION}.ebuild" prepare+ebuild "/usr/portage/media-libs/mesa/mesa-${mesa_version}.ebuild" prepare
 </code> </code>
  
 Now compile the library and move it over to the storage location: Now compile the library and move it over to the storage location:
 <code> <code>
-cd /var/tmp/portage/media-libs/mesa-${MESA_VERSION}/work/mesa-${MESA_VERSION}+cd "/var/tmp/portage/media-libs/mesa-${mesa_version}/work/mesa-${mesa_version}"
 scons libgl-xlib scons libgl-xlib
-cp build/linux-x86_64-debug/gallium/targets/libgl-xlib/* /usr/local/share/mesa-libgl-xlib/+cp -av build/linux-x86_64-debug/gallium/targets/libgl-xlib/* /usr/local/share/mesa-libgl-xlib/
 </code> </code>
  
Line 59: Line 91:
  
 <code> <code>
-ebuild /usr/portage/media-libs/mesa/mesa-${MESA_VERSION}.ebuild clean+ebuild "/usr/portage/media-libs/mesa/mesa-${mesa_version}.ebuildclean
 </code> </code>
 +
 +===== Matlab 2019b =====
 +
 +Compile like this:
 +<code>
 +meson -D glx=gallium-xlib -D gallium-drivers=swrast -D platforms=x11 -D dri3=false -D dri-drivers="" -D vulkan-drivers="" -D buildtype=release -D optimization=3 -Dprefix=/usr/local/mesa-20.1.0/
 +</code>
 +
 +To make Matlab load the new driver modify Matlab's lib search path:
 +cp $MATLAB_DIRECTORY/bin/.matlab7rc.sh ~
 +
 +Edit the file ~/.matlab7rc.sh, find the glnxa* section and add `/usr/local/mesa-20.1.0/lib/x86_64-linux-gnu` to LDPATH_PREFIX
 +
 +Add to your .profile: export MESA_GL_VERSION_OVERRIDE=3.0
wiki/development/glx-xlib-workaround.txt · Last modified: 2021/10/25 21:01 by uli42