diff options
| author | Mans Rullgard <mans@mansr.com> | 2011-03-23 01:45:43 +0000 |
|---|---|---|
| committer | Mans Rullgard <mans@mansr.com> | 2011-03-24 19:24:03 +0000 |
| commit | 2d3b21ffb91610f806a6c550dc142520d7a11e50 (patch) | |
| tree | ef82639c7628042e39fa8f8b6e06887cad6fbe1f /libavcodec | |
| parent | 245c78313fac79d3336f139fbca88c8d799f866a (diff) | |
ARM: NEON optimised apply_window_int16()
Signed-off-by: Mans Rullgard <mans@mansr.com>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/arm/dsputil_init_neon.c | 5 | ||||
| -rw-r--r-- | libavcodec/arm/dsputil_neon.S | 23 |
2 files changed, 28 insertions, 0 deletions
diff --git a/libavcodec/arm/dsputil_init_neon.c b/libavcodec/arm/dsputil_init_neon.c index 2b283c4ac1..eb0bc575e8 100644 --- a/libavcodec/arm/dsputil_init_neon.c +++ b/libavcodec/arm/dsputil_init_neon.c @@ -168,6 +168,9 @@ int32_t ff_scalarproduct_int16_neon(const int16_t *v1, const int16_t *v2, int le int32_t ff_scalarproduct_and_madd_int16_neon(int16_t *v1, const int16_t *v2, const int16_t *v3, int len, int mul); +void ff_apply_window_int16_neon(int16_t *dst, const int16_t *src, + const int16_t *window, int n); + void ff_dsputil_init_neon(DSPContext *c, AVCodecContext *avctx) { if (!avctx->lowres) { @@ -319,4 +322,6 @@ void ff_dsputil_init_neon(DSPContext *c, AVCodecContext *avctx) c->scalarproduct_int16 = ff_scalarproduct_int16_neon; c->scalarproduct_and_madd_int16 = ff_scalarproduct_and_madd_int16_neon; + + c->apply_window_int16 = ff_apply_window_int16_neon; } diff --git a/libavcodec/arm/dsputil_neon.S b/libavcodec/arm/dsputil_neon.S index 140f5a0743..5b80e40d6f 100644 --- a/libavcodec/arm/dsputil_neon.S +++ b/libavcodec/arm/dsputil_neon.S @@ -789,3 +789,26 @@ NOVFP ldr r2, [sp] vst1.f32 {q9},[r0,:128]! bx lr endfunc + +function ff_apply_window_int16_neon, export=1 + push {r4,lr} + add r4, r1, r3, lsl #1 + add lr, r0, r3, lsl #1 + sub r4, r4, #16 + sub lr, lr, #16 + mov r12, #-16 +1: + vld1.16 {q0}, [r1,:128]! + vld1.16 {q2}, [r2,:128]! + vld1.16 {q1}, [r4,:128], r12 + vrev64.16 q3, q2 + vqrdmulh.s16 q0, q0, q2 + vqrdmulh.s16 d2, d2, d7 + vqrdmulh.s16 d3, d3, d6 + vst1.16 {q0}, [r0,:128]! + vst1.16 {q1}, [lr,:128], r12 + subs r3, r3, #16 + bgt 1b + + pop {r4,pc} +endfunc |