From 9285f159e0136da0e4e2381ea5340faee2a043e0 Mon Sep 17 00:00:00 2001 From: José Fonseca Date: Mon, 10 Aug 2009 12:35:16 +0100 Subject: llvmpipe: Simple description/instructions. --- src/gallium/drivers/llvmpipe/README | 48 +++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 src/gallium/drivers/llvmpipe/README (limited to 'src') diff --git a/src/gallium/drivers/llvmpipe/README b/src/gallium/drivers/llvmpipe/README new file mode 100644 index 0000000000..55707fe333 --- /dev/null +++ b/src/gallium/drivers/llvmpipe/README @@ -0,0 +1,48 @@ +LLVMPIPE -- a fork of softpipe that employs LLVM for code generation. + + +Requirements +============ + + - Linux + + - LLVM. On Debian based distributions do: + + aptitude install llvm-dev + + - A x86 or amd64 processor with support for sse2, sse3, and sse4.1 SIMD + instructions. This is necessary because we emit several SSE intrinsics for + convenience. See /proc/cpuinfo to know what your CPU supports. + + - scons (although it should be straightforward to fix the Makefiles as well) + + +Building +======== + +To build everything invoke scons as: + + scons debug=yes statetrackers=mesa drivers=llvmpipe winsys=xlib dri=false -k + + +Using +===== + +Building will create a drop-in alternative for libGL.so. To use it set the +environment variables: + + export LD_LIRBARY_PATH=$PWD/build/linux-x86-debug/lib:$LD_LIRBARY_PATH + export LD_LIRBARY_PATH=$PWD/build/linux-x86_64-debug/lib:$LD_LIRBARY_PATH + + +Unit testing +============ + +Building will also create several unit tests in +build/linux-???-debug/gallium/drivers/llvmpipe: + + - lp_test_blend: blending + - lp_test_conv: SIMD vector conversion + - lp_test_format: pixel unpacking/packing + + -- cgit v1.2.3