diff options
| author | Måns Rullgård <mans@mansr.com> | 2009-08-14 01:02:06 +0000 |
|---|---|---|
| committer | Måns Rullgård <mans@mansr.com> | 2009-08-14 01:02:06 +0000 |
| commit | e814015d69578cb0d45407a8070a77fd542df6bf (patch) | |
| tree | d09bfa8012e316e541a074c72f96849ee122ce6b /libavcodec/arm/dsputil_neon_s.S | |
| parent | 737cbcde0873998f51cc7f640f6ea91d9e3fffd3 (diff) | |
| download | ffmpeg-e814015d69578cb0d45407a8070a77fd542df6bf.tar.gz | |
ARM: NEON optimised vorbis_inverse_coupling
12% faster Vorbis decoding on Cortex-A8.
Originally committed as revision 19637 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/arm/dsputil_neon_s.S')
| -rw-r--r-- | libavcodec/arm/dsputil_neon_s.S | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/libavcodec/arm/dsputil_neon_s.S b/libavcodec/arm/dsputil_neon_s.S index c816f08089..71d09c6512 100644 --- a/libavcodec/arm/dsputil_neon_s.S +++ b/libavcodec/arm/dsputil_neon_s.S @@ -19,6 +19,7 @@ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ +#include "config.h" #include "asm.S" preserve8 @@ -795,3 +796,66 @@ NOVFP ldr lr, [sp, #16] vst1.64 {d22,d23},[ip,:128], r5 pop {r4,r5,pc} .endfunc + +#if CONFIG_VORBIS_DECODER +function ff_vorbis_inverse_coupling_neon, export=1 + vmov.i32 q10, #1<<31 + subs r2, r2, #4 + tst r2, #4 + mov r3, r0 + mov r12, r1 + beq 3f + + vld1.32 {d24-d25},[r1,:128]! + vld1.32 {d22-d23},[r0,:128]! + vcle.s32 q8, q12, #0 + vand q9, q11, q10 + veor q12, q12, q9 + vand q2, q12, q8 + vbic q3, q12, q8 + vadd.f32 q12, q11, q2 + vsub.f32 q11, q11, q3 +1: vld1.32 {d2-d3}, [r1,:128]! + vld1.32 {d0-d1}, [r0,:128]! + vcle.s32 q8, q1, #0 + vand q9, q0, q10 + veor q1, q1, q9 + vst1.32 {d24-d25},[r3, :128]! + vst1.32 {d22-d23},[r12,:128]! + vand q2, q1, q8 + vbic q3, q1, q8 + vadd.f32 q1, q0, q2 + vsub.f32 q0, q0, q3 + subs r2, r2, #8 + ble 2f + vld1.32 {d24-d25},[r1,:128]! + vld1.32 {d22-d23},[r0,:128]! + vcle.s32 q8, q12, #0 + vand q9, q11, q10 + veor q12, q12, q9 + vst1.32 {d2-d3}, [r3, :128]! + vst1.32 {d0-d1}, [r12,:128]! + vand q2, q12, q8 + vbic q3, q12, q8 + vadd.f32 q12, q11, q2 + vsub.f32 q11, q11, q3 + b 1b + +2: vst1.32 {d2-d3}, [r3, :128]! + vst1.32 {d0-d1}, [r12,:128]! + bxlt lr + +3: vld1.32 {d2-d3}, [r1,:128] + vld1.32 {d0-d1}, [r0,:128] + vcle.s32 q8, q1, #0 + vand q9, q0, q10 + veor q1, q1, q9 + vand q2, q1, q8 + vbic q3, q1, q8 + vadd.f32 q1, q0, q2 + vsub.f32 q0, q0, q3 + vst1.32 {d2-d3}, [r0,:128]! + vst1.32 {d0-d1}, [r1,:128]! + bx lr + .endfunc +#endif |