49 lines
1.1 KiB
Plaintext
49 lines
1.1 KiB
Plaintext
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LLVMPIPE -- a fork of softpipe that employs LLVM for code generation.
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Requirements
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============
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- Linux
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- LLVM. On Debian based distributions do:
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aptitude install llvm-dev
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- A x86 or amd64 processor with support for sse2, sse3, and sse4.1 SIMD
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instructions. This is necessary because we emit several SSE intrinsics for
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convenience. See /proc/cpuinfo to know what your CPU supports.
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- scons (although it should be straightforward to fix the Makefiles as well)
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Building
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========
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To build everything invoke scons as:
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scons debug=yes statetrackers=mesa drivers=llvmpipe winsys=xlib dri=false -k
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Using
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=====
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Building will create a drop-in alternative for libGL.so. To use it set the
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environment variables:
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export LD_LIRBARY_PATH=$PWD/build/linux-x86-debug/lib:$LD_LIRBARY_PATH
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export LD_LIRBARY_PATH=$PWD/build/linux-x86_64-debug/lib:$LD_LIRBARY_PATH
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Unit testing
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============
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Building will also create several unit tests in
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build/linux-???-debug/gallium/drivers/llvmpipe:
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- lp_test_blend: blending
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- lp_test_conv: SIMD vector conversion
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- lp_test_format: pixel unpacking/packing
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