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ARM: NEON optimised vector_clip_int32()

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Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard 2011-07-02 17:21:02 +01:00
parent 8f440223f6
commit 8aa63f0b31
2 changed files with 19 additions and 0 deletions
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3
libavcodec/arm/dsputil_init_neon.c
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@ -160,6 +160,8 @@ void ff_vector_fmul_add_neon(float *dst, const float *src0, const float *src1,
void ff_vector_clipf_neon(float *dst, const float *src, float min, float max,
int len);
void ff_vector_clip_int32_neon(int32_t *dst, const int32_t *src, int32_t min,
int32_t max, unsigned int len);
void ff_vorbis_inverse_coupling_neon(float *mag, float *ang, int blocksize);
@ -316,6 +318,7 @@ void ff_dsputil_init_neon(DSPContext *c, AVCodecContext *avctx)
c->vector_fmul_reverse = ff_vector_fmul_reverse_neon;
c->vector_fmul_add = ff_vector_fmul_add_neon;
c->vector_clipf = ff_vector_clipf_neon;
c->vector_clip_int32 = ff_vector_clip_int32_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;

16
libavcodec/arm/dsputil_neon.S
View File

@ -815,3 +815,19 @@ function ff_apply_window_int16_neon, export=1
pop {r4,pc}
endfunc
function ff_vector_clip_int32_neon, export=1
vdup.32 q0, r2
vdup.32 q1, r3
ldr r2, [sp]
1:
vld1.32 {q2-q3}, [r1,:128]!
vmin.s32 q2, q2, q1
vmin.s32 q3, q3, q1
vmax.s32 q2, q2, q0
vmax.s32 q3, q3, q0
vst1.32 {q2-q3}, [r0,:128]!
subs r2, r2, #8
bgt 1b
bx lr
endfunc