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Require aligned memory for everything that needs it

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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
This commit is contained in:
Måns Rullgård 2009-07-15 18:33:12 +00:00
parent bd20afc401
commit 89e053f83d
1 changed files with 8 additions and 7 deletions
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15
configure vendored
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@ -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