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Grazvydas Ignotas authored
zlib provides a faster slice-by-4 CRC32 implementation than the traditional single byte lookup one used by mesa. As most supported platforms now link zlib unconditionally, we can easily use it. Improvement for a 1MB buffer (avg MB/s, n=100, zlib 1.2.8): i5-6600K C2D E4500 mesa zlib mesa zlib 443 1443 225% +/- 2.1% 403 1175 191% +/- 0.9% It has been verified the calculation results stay the same after this change. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com> Reviewed-by: Marek Olšák <marek.olsak@amd.com> Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
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