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| author | Linfeng Zhang <linfengz@google.com> | 2017-09-19 16:39:17 -0700 |
|---|---|---|
| committer | Linfeng Zhang <linfengz@google.com> | 2017-09-19 16:39:17 -0700 |
| commit | 7c0529728a24cf9f812a3229eb3881998b28eb0d (patch) | |
| tree | 9976ad1ff3cafe4474be761a7c57e80e7c1fa838 /vpx_dsp | |
| parent | f357335c38c82dc6e4eb27a587dd13d42b0d45a2 (diff) | |
| download | libvpx-7c0529728a24cf9f812a3229eb3881998b28eb0d.tar libvpx-7c0529728a24cf9f812a3229eb3881998b28eb0d.tar.gz libvpx-7c0529728a24cf9f812a3229eb3881998b28eb0d.tar.bz2 libvpx-7c0529728a24cf9f812a3229eb3881998b28eb0d.zip | |
cosmetics: NEON scaling code
Change-Id: Ib91054622c1f09c4ca523bc6837d7d8ab9f03618
Diffstat (limited to 'vpx_dsp')
| -rw-r--r-- | vpx_dsp/arm/vpx_convolve8_neon.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/vpx_dsp/arm/vpx_convolve8_neon.h b/vpx_dsp/arm/vpx_convolve8_neon.h index bd20a263c..2ac865816 100644 --- a/vpx_dsp/arm/vpx_convolve8_neon.h +++ b/vpx_dsp/arm/vpx_convolve8_neon.h @@ -90,3 +90,22 @@ static INLINE uint8x8_t convolve8_8(const int16x8_t s0, const int16x8_t s1, sum = vqaddq_s16(sum, vmulq_s16(s4, filter4)); return vqrshrun_n_s16(sum, 7); } + +static INLINE uint8x8_t scale_filter_8(const uint8x8_t *const s, + const int16x8_t filters) { + const int16x8_t filter3 = vdupq_lane_s16(vget_low_s16(filters), 3); + const int16x8_t filter4 = vdupq_lane_s16(vget_high_s16(filters), 0); + int16x8_t ss[8]; + + ss[0] = vreinterpretq_s16_u16(vmovl_u8(s[0])); + ss[1] = vreinterpretq_s16_u16(vmovl_u8(s[1])); + ss[2] = vreinterpretq_s16_u16(vmovl_u8(s[2])); + ss[3] = vreinterpretq_s16_u16(vmovl_u8(s[3])); + ss[4] = vreinterpretq_s16_u16(vmovl_u8(s[4])); + ss[5] = vreinterpretq_s16_u16(vmovl_u8(s[5])); + ss[6] = vreinterpretq_s16_u16(vmovl_u8(s[6])); + ss[7] = vreinterpretq_s16_u16(vmovl_u8(s[7])); + + return convolve8_8(ss[0], ss[1], ss[2], ss[3], ss[4], ss[5], ss[6], ss[7], + filters, filter3, filter4); +} |