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| author | Måns Rullgård <mans@mansr.com> | 2009-09-26 19:23:25 +0000 |
|---|---|---|
| committer | Måns Rullgård <mans@mansr.com> | 2009-09-26 19:23:25 +0000 |
| commit | b9b1ad9cd863f925302cf3f67c885b1caac82341 (patch) | |
| tree | 726748db770e34c6785ff1a2c1f63104c05026e9 /libavcodec | |
| parent | 13d41a194e3da2e2a9c64f772b44d703733dbc08 (diff) | |
| download | ffmpeg-b9b1ad9cd863f925302cf3f67c885b1caac82341.tar.gz | |
ARM: NEON optimised vector_fmul_reverse
Originally committed as revision 20029 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/arm/dsputil_neon.c | 3 | ||||
| -rw-r--r-- | libavcodec/arm/dsputil_neon_s.S | 24 |
2 files changed, 27 insertions, 0 deletions
diff --git a/libavcodec/arm/dsputil_neon.c b/libavcodec/arm/dsputil_neon.c index 2ec50a1004..024bb9727c 100644 --- a/libavcodec/arm/dsputil_neon.c +++ b/libavcodec/arm/dsputil_neon.c @@ -171,6 +171,8 @@ 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_int32_to_float_fmul_scalar_neon(float *dst, const int *src, float mul, int len); +void ff_vector_fmul_reverse_neon(float *dst, const float *src0, + const float *src1, 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); @@ -287,6 +289,7 @@ void ff_dsputil_init_neon(DSPContext *c, AVCodecContext *avctx) c->butterflies_float = ff_butterflies_float_neon; c->scalarproduct_float = ff_scalarproduct_float_neon; c->int32_to_float_fmul_scalar = ff_int32_to_float_fmul_scalar_neon; + c->vector_fmul_reverse = ff_vector_fmul_reverse_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 8fd055abbd..7c8328313e 100644 --- a/libavcodec/arm/dsputil_neon_s.S +++ b/libavcodec/arm/dsputil_neon_s.S @@ -1051,3 +1051,27 @@ NOVFP len .req r3 bx lr .unreq len .endfunc + +function ff_vector_fmul_reverse_neon, export=1 + add r2, r2, r3, lsl #2 + sub r2, r2, #32 + mov r12, #-32 + vld1.32 {q0-q1}, [r1,:128]! + vld1.32 {q2-q3}, [r2,:128], r12 +1: pld [r1, #32] + vrev64.32 q3, q3 + vmul.f32 d16, d0, d7 + vmul.f32 d17, d1, d6 + pld [r2, #-32] + vrev64.32 q2, q2 + vmul.f32 d18, d2, d5 + vmul.f32 d19, d3, d4 + subs r3, r3, #8 + beq 2f + vld1.32 {q0-q1}, [r1,:128]! + vld1.32 {q2-q3}, [r2,:128], r12 + vst1.32 {q8-q9}, [r0,:128]! + b 1b +2: vst1.32 {q8-q9}, [r0,:128]! + bx lr + .endfunc |