Require aligned memory for everything that needs it

Altivec, NEON, and SSE require more alignment than standard malloc()
guarantees, whereas MMX does not.  Update checks to reflect this.

Originally committed as revision 19438 to svn://svn.ffmpeg.org/ffmpeg/trunk
release/0.6
Måns Rullgård 16 years ago
parent bd20afc401
commit 89e053f83d
  1. 15
      configure

15
configure vendored

@ -1040,6 +1040,8 @@ sse_deps="mmx"
ssse3_deps="sse"
vis_deps="sparc"
need_memalign="altivec neon sse"
# decoders / encoders / hardware accelerators
aac_decoder_select="fft mdct"
ac3_decoder_select="fft mdct"
@ -1668,21 +1670,21 @@ case $target_os in
oss_outdev_extralibs="-lossaudio"
;;
openbsd)
disable need_memalign
enable malloc_aligned
LIBOBJFLAGS='$(PIC)'
SHFLAGS='-shared'
oss_indev_extralibs="-lossaudio"
oss_outdev_extralibs="-lossaudio"
;;
freebsd|dragonfly)
disable need_memalign
enable malloc_aligned
;;
bsd/os)
osextralibs="-lpoll -lgnugetopt"
strip="strip -d"
;;
darwin)
disable need_memalign
enable malloc_aligned
SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
strip="strip -x"
FFLDFLAGS="-Wl,-dynamic,-search_paths_first"
@ -1697,7 +1699,7 @@ case $target_os in
target_os=mingw32
LIBTARGET=i386
if enabled x86_64; then
disable need_memalign
enable malloc_aligned
LIBTARGET=x64
elif enabled arm; then
LIBTARGET=arm
@ -1840,8 +1842,6 @@ enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
check_deps $ARCH_EXT_LIST
test -z "$need_memalign" && need_memalign="$mmx"
#Darwin CC versions
if test $target_os = darwin; then
if enabled xlc; then
@ -2091,7 +2091,8 @@ check_header vdpau/vdpau.h
check_header vdpau/vdpau_x11.h
check_header X11/extensions/XvMClib.h
if enabled sse && { ! enabled_any memalign memalign_hack posix_memalign && enabled need_memalign ;} ; then
if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
enabled_any $need_memalign ; then
die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
fi

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