[FFmpeg-cvslog] ARM: disable ff_vector_fmul_vfp on VFPv3 systems

[Mans Rullgard]

ffmpeg | branch: master | Mans Rullgard <mans at mansr.com> | Fri May 27 20:18:26 2011 +0100| [79aeade6f6f8fbd7ce1da619fdd475e5db88ae24] | committer: Mans Rullgard

ARM: disable ff_vector_fmul_vfp on VFPv3 systems

This function uses old-style vector operations deprecated in VFPv3.
Some implementations, e.g. Cortex-A9, support them only through
slow software emulation.  Cortex-A8 does have this functionality
in hardware, but as it also has NEON, this function is not used
there regardless.

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

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=79aeade6f6f8fbd7ce1da619fdd475e5db88ae24
---

 libavcodec/arm/dsputil_init_vfp.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/libavcodec/arm/dsputil_init_vfp.c b/libavcodec/arm/dsputil_init_vfp.c
index 3928911..9cda890 100644
--- a/libavcodec/arm/dsputil_init_vfp.c
+++ b/libavcodec/arm/dsputil_init_vfp.c
@@ -28,6 +28,7 @@ void ff_vector_fmul_reverse_vfp(float *dst, const float *src0,
 
 void ff_dsputil_init_vfp(DSPContext* c, AVCodecContext *avctx)
 {
-    c->vector_fmul = ff_vector_fmul_vfp;
+    if (!HAVE_VFPV3)
+        c->vector_fmul = ff_vector_fmul_vfp;
     c->vector_fmul_reverse = ff_vector_fmul_reverse_vfp;
 }