1 Usage 2 ===== 3 4 Requirements 5 ^^^^^^^^^^^^ 6 7 * An x86 processor with AVX or AVX2 8 * LLVM version 3.6 or later 9 10 Building 11 ^^^^^^^^ 12 13 To build with GNU automake, select building the swr driver at 14 configure time, for example: :: 15 16 configure --with-gallium-drivers=swrast,swr 17 18 Using 19 ^^^^^ 20 21 On Linux, building will create a drop-in alternative for libGL.so into:: 22 23 lib/gallium/libGL.so 24 25 or:: 26 27 build/foo/gallium/targets/libgl-xlib/libGL.so 28 29 To use it set the LD_LIBRARY_PATH environment variable accordingly. 30 31 **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: :: 32 33 GALLIUM_DRIVER=swr 34 35 To verify OpenSWR is being used, check to see if a message like the following is printed when the application is started: :: 36 37 SWR detected AVX2 38 39
