Refactoring mmx2/mmxext YASM code with cpuflags will force renames.
So switching to a consistent naming scheme beforehand is sensible.
The name "mmxext" is more official and widespread and also the name
of the CPU flag, as reported e.g. by the Linux kernel.

When HAVE_7REGS was not defined these functions had an empty body
causing the following warnings during compilation.
In file included from libswscale/x86/yuv2rgb_mmx.c:58:
libswscale/x86/yuv2rgb_template.c: In function ‘yuva420_rgb32_MMX’:
libswscale/x86/yuv2rgb_template.c:412: warning: no return statement in function returning non-void
libswscale/x86/yuv2rgb_template.c: In function ‘yuva420_bgr32_MMX’:
libswscale/x86/yuv2rgb_template.c:457: warning: no return statement in function returning non-void
Signed-off-by: Diego Biurrun <diego@biurrun.de>

Signed-off-by: Mans Rullgard <mans@mansr.com>

Originally committed as revision 31279 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale

It is now faster than the old gpl version on conroe.

Originally committed as revision 31181 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale

It is now faster than the old gpl version on conroe.

Originally committed as revision 31180 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale

written by Kostya Shishkov

Originally committed as revision 31135 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale