Introduction to Mesa
Mesa is an OpenGL compatible 3D
graphics library.
![[Note]](../images/note.png)
Note
Mesa is updated relatively
often. You may want to use the latest available 20.1.x mesa
version.
This package is known to build and work properly using an LFS-10.0
platform.
Package Information
Additional Downloads
Mesa Dependencies
Required
Xorg
Libraries, libdrm-2.4.102, and Mako-1.1.3
Recommended
libva-2.8.0 (to provide VA-API support for some
gallium drivers, note that there is a circular dependency. You must
build libva first without EGL and
GLX support, install this package, and rebuild libva), libvdpau-1.4 (to
build VDPAU drivers), LLVM-10.0.1 (required for Gallium3D,
nouveau, r300, and radeonsi drivers and for swrast, the software
rasterizer which is sometimes referred to as llvmpipe. See
http://www.mesa3d.org/systems.html
for more information), and wayland-protocols-1.20 (required for
Plasma-5.19.4, GNOME, and recommended for
GTK+-3.24.22)
Optional
libgcrypt-1.8.6, lm-sensors-3-6-0 , Nettle-3.6,
Valgrind-3.16.1, mesa-demos
(provides more than 300 extra demos to test Mesa; this includes the same programs added by
the patch above), Bellagio OpenMAX Integration
Layer (for mobile platforms), libunwind, and
libtizonia
Note
The instructions below assume that LLVM with the r600/amdgpu and host backends
and run-time type information (RTTI - needed for nouveau) are
installed. You will need to modify the instructions if you choose
not to install all of these. For an explanation of Gallium3D see
https://en.wikipedia.org/wiki/Gallium3D.
User Notes: http://wiki.linuxfromscratch.org/blfs/wiki/mesa
Installation of Mesa
If you have downloaded the xdemos patch (needed if testing the Xorg
installation per BLFS instructions), apply it by running the
following command:
patch -Np1 -i ../mesa-20.1.5-add_xdemos-1.patch
If Python-2.7.18 is not installed, adjust a script
file in test suite to use Python 3:
sed '1s/python/&3/' -i bin/symbols-check.py
Note
The measurements above, and the Contents below, are for a full
build. Many people will not wish to install drivers they cannot
use, so the following paragraphs explain how to limit the
drivers, and give an example which can be be reduced or amended
as necessary.
Now, select the drivers you wish to install. For the X86
architecture, the available gallium drivers are auto, or alternatively a choice from i915,
nouveau, r300, r600, radeonsi, svga, swrast, and virgl. The latter
is recommended if you intend to run the system under qemu-5.1.0. If you wish to build all available
gallium drivers, use 'auto'.
The (non-gallium) DRI drivers available in X86 are auto,
or alternatively a choice
from i915, i965, nouveau, r100, r200, and swrast. Use
'auto' to build all available DRI drivers, or use an empty string
(DRI_DRIVERS="") if you wish to only build gallium drivers.
The platforms ("window systems") available for X86 linux are x11,
wayland, drm, and surfaceless. By not specifying anything, the
meson build-system will build for all these platforms if you have
the dependencies, identical to if you had specified
'-Dplatforms=auto'.
Modify the commands below for your desired drivers. The drivers
listed below will cover most modern video cards and virtual
machines. For help in selecting drivers see http://www.mesa3d.org/systems.html.
Note
Although the nouveau drivers can be built for both gallium and
dri, the i915 driver can only be built for one or the other.
GALLIUM_DRV="i915,iris,nouveau,r600,radeonsi,svga,swrast,virgl"
DRI_DRIVERS="i965,nouveau"
Install Mesa by running the
following commands:
mkdir build &&
cd build &&
meson --prefix=$XORG_PREFIX \
-Dbuildtype=release \
-Ddri-drivers=$DRI_DRIVERS \
-Dgallium-drivers=$GALLIUM_DRV \
-Dgallium-nine=false \
-Dglx=dri \
-Dosmesa=gallium \
-Dvalgrind=false \
-Dlibunwind=false \
.. &&
unset GALLIUM_DRV DRI_DRIVERS &&
ninja
If you built the tests (see 'Command Explanations'), to run them
issue: ninja test.
Four tests in the glcpp test suite and two tests in the llvmpipe
suite are known to fail.
Now, as the root user:
ninja install
If desired, install the optional documentation by running the
following commands as the root
user:
install -v -dm755 /usr/share/doc/mesa-20.1.5 &&
cp -rfv ../docs/* /usr/share/doc/mesa-20.1.5
Command Explanations
-Dbuildtype=release: This
switch ensures a fully-optimized build, and disables debug
assertions which will severely slow down the libraries in certain
use-cases. Without this switch, build sizes can span into the 2GB
range.
-Ddri-drivers="...": This
parameter controls which (non-gallium) dri drivers should be built.
-Dgallium-drivers="...":
This parameter controls which Gallium3D drivers should be built.
-Dgallium-nine=true: Setting this
option to true will provide support for (MS Windows) games designed
for DX9.
-Dosmesa=gallium: This
switch enables building the libOSMesa
library and provides Gallium3D support in it. It requires the
swrast gallium driver.
-Dvalgrind=false: This
parameter disables the usage of Valgrind during the build process.
Remove this parameter if you have Valgrind installed, and wish to
check for memory leaks.
-Dbuild-tests=true: This option will
cause the test code to be enabled.