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| author | Måns Rullgård <mans@mansr.com> | 2009-09-22 20:37:55 +0000 |
|---|---|---|
| committer | Måns Rullgård <mans@mansr.com> | 2009-09-22 20:37:55 +0000 |
| commit | 275cfd1501c385857d0fecb827aa3a3a4177b102 (patch) | |
| tree | ec1090ff74844ec5822602d1f9ff5d97744e5d4c | |
| parent | 0cb71412829dfe60421961a19a1deb1a8a52066a (diff) | |
ARM: NEON optimised scalarproduct_float
Originally committed as revision 19971 to svn://svn.ffmpeg.org/ffmpeg/trunk
| -rw-r--r-- | libavcodec/arm/dsputil_neon.c | 2 | ||||
| -rw-r--r-- | libavcodec/arm/dsputil_neon_s.S | 13 |
2 files changed, 15 insertions, 0 deletions
diff --git a/libavcodec/arm/dsputil_neon.c b/libavcodec/arm/dsputil_neon.c index 03e17466b6..bfea27ff13 100644 --- a/libavcodec/arm/dsputil_neon.c +++ b/libavcodec/arm/dsputil_neon.c @@ -168,6 +168,7 @@ void ff_sv_fmul_scalar_2_neon(float *dst, const float **vp, float mul, void ff_sv_fmul_scalar_4_neon(float *dst, const float **vp, float mul, int len); void ff_butterflies_float_neon(float *v1, float *v2, int len); +float ff_scalarproduct_float_neon(const float *v1, const float *v2, int len); void ff_float_to_int16_neon(int16_t *, const float *, long); void ff_float_to_int16_interleave_neon(int16_t *, const float **, long, int); @@ -282,6 +283,7 @@ void ff_dsputil_init_neon(DSPContext *c, AVCodecContext *avctx) c->vector_fmul_window = ff_vector_fmul_window_neon; c->vector_fmul_scalar = ff_vector_fmul_scalar_neon; c->butterflies_float = ff_butterflies_float_neon; + c->scalarproduct_float = ff_scalarproduct_float_neon; c->vector_fmul_sv_scalar[0] = ff_vector_fmul_sv_scalar_2_neon; c->vector_fmul_sv_scalar[1] = ff_vector_fmul_sv_scalar_4_neon; diff --git a/libavcodec/arm/dsputil_neon_s.S b/libavcodec/arm/dsputil_neon_s.S index 8764cedc4e..b9779354fa 100644 --- a/libavcodec/arm/dsputil_neon_s.S +++ b/libavcodec/arm/dsputil_neon_s.S @@ -1010,3 +1010,16 @@ function ff_butterflies_float_neon, export=1 bgt 1b bx lr .endfunc + +function ff_scalarproduct_float_neon, export=1 + vmov.f32 q2, #0.0 +1: vld1.32 {q0},[r0,:128]! + vld1.32 {q1},[r1,:128]! + vmla.f32 q2, q0, q1 + subs r2, r2, #4 + bgt 1b + vadd.f32 d0, d4, d5 + vpadd.f32 d0, d0, d0 +NOVFP vmov.32 r0, d0[0] + bx lr + .endfunc |