diff options
| -rw-r--r-- | src/gallium/drivers/llvmpipe/README | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/gallium/drivers/llvmpipe/README b/src/gallium/drivers/llvmpipe/README new file mode 100644 index 00000000000..55707fe333d --- /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 + + |