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Usage
=====
Requirements
^^^^^^^^^^^^
* An x86 processor with AVX or AVX2
* LLVM version 3.6 or later
Building
^^^^^^^^
To build with GNU automake, select building the swr driver at
configure time, for example: ::
configure --with-gallium-drivers=swrast,swr
Using
^^^^^
On Linux, building will create a drop-in alternative for libGL.so into::
lib/gallium/libGL.so
or::
build/foo/gallium/targets/libgl-xlib/libGL.so
To use it set the LD_LIBRARY_PATH environment variable accordingly.
**IMPORTANT:** Mesa will default to using llvmpipe or softpipe as the default software renderer. To select the OpenSWR driver, set the GALLIUM_DRIVER environment variable appropriately: ::
GALLIUM_DRIVER=swr
To verify OpenSWR is being used, check to see if a message like the following is printed when the application is started: ::
SWR detected AVX2
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