CVS commit: xsrc/external/mit/xf86-video-openchrome/dist/src

["Jared D. McNeill" <jmcneill%netbsd.org@localhost>]

Module Name:    xsrc
Committed By:   jmcneill
Date:           Sun Feb 13 20:06:20 UTC 2011

Modified Files:
        xsrc/external/mit/xf86-video-openchrome/dist/src: via_memcpy.c

Log Message:
Remove a couple '#ifdef linux's to let the driver use optimized memcpy
functions on NetBSD for video copy. Gives nearly 2x performance on my
test system (previously "kernel" memcpy was always used):

CHROME(0): Benchmarking video copy.  Less time is better.
CHROME(0): Timed   libc YUV420 copy... 3000272. Throughput: 315.6 MiB/s.
CHROME(0): Timed kernel YUV420 copy... 3024946. Throughput: 313.0 MiB/s.
CHROME(0): Timed    SSE YUV420 copy... 1591352. Throughput: 595.0 MiB/s.
CHROME(0): Timed    MMX YUV420 copy... 2566279. Throughput: 369.0 MiB/s.
CHROME(0): Ditching 3DNow! YUV420 copy. Not supported by CPU.
CHROME(0): Timed   MMX2 YUV420 copy... 1696662. Throughput: 558.1 MiB/s.
CHROME(0): Using SSE YUV42X copy for video.


To generate a diff of this commit:
cvs rdiff -u -r1.1.1.1 -r1.2 \
    xsrc/external/mit/xf86-video-openchrome/dist/src/via_memcpy.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.