Ancient AMD specific enhancement to the MMX instruction set. Officually
discontinued by AMD.
Note that support for this was already disabled in the previous commit.
This commit removes the actual code.
mplayer had three ways of enabling CPU specific assembler routines:
a) Enable them at compile time; crash if the CPU can't handle it.
b) Enable them at compile time, but let the configure script detect
your CPU. Your binary will only crash if you try to run it on a
different system that has less features than yours.
This was the default, I think.
c) Runtime detection.
The implementation of b) and c) suck. a) is not really feasible (it
sucks for users). Remove all code related to this, and use libav's CPU
detection instead. Now the configure script will always enable CPU
specific features, and disable them at runtime if libav reports them
not as available.
One implication is that now the compiler is always expected to handle
SSE (etc.) inline assembly at runtime, unless it's explicitly disabled.
Only checks for x86 CPU specific features are kept, the rest is either
unused or barely used.
Get rid of all the dump -mpcu, -march etc. flags. Trust the compiler
to select decent settings.
Get rid of support for the following operating systems:
- BSD/OS (some ancient BSD fork)
- QNX (don't care)
- BeOS (dead, Haiku support is still welcome)
- AIX (don't care)
- HP-UX (don't care)
- OS/2 (dead, actual support has been removed a while ago)
Remove the configure code for detecting the endianness. Instead, use
the standard header <endian.h>, which can be used if _GNU_SOURCE or
_BSD_SOURCE is defined. (Maybe these changes should have been in a
separate commit.)
Since this is a quite violent code removal orgy, and I'm testing only
on x86 32 bit Linux, expect regressions.
Patch by Zhou, Zongyi %zz65 A cornell P edu%
Original thread:
date: Wed, Nov 19, 2008 at 4:22 PM
subject: Re: [MPlayer-dev-eng] [PATCH] yadif SSE2/SSSE3 optimization
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@27960 b3059339-0415-0410-9bf9-f77b7e298cf2
libmpeg2) & enough code to enable the AltiVec IMDCT
in liba52 and the DCT64 in mp3lib.
patch by Romain Dolbeau <dolbeau@irisa.fr>
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@9004 b3059339-0415-0410-9bf9-f77b7e298cf2
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