diff options
Diffstat (limited to 'vpx_dsp/arm/intrapred_neon.c')
| -rw-r--r-- | vpx_dsp/arm/intrapred_neon.c | 1351 |
1 files changed, 1126 insertions, 225 deletions
diff --git a/vpx_dsp/arm/intrapred_neon.c b/vpx_dsp/arm/intrapred_neon.c index 38e275834..4f909e493 100644 --- a/vpx_dsp/arm/intrapred_neon.c +++ b/vpx_dsp/arm/intrapred_neon.c @@ -12,51 +12,47 @@ #include "./vpx_config.h" #include "./vpx_dsp_rtcd.h" +#include "mem_neon.h" +#include "sum_neon.h" #include "vpx/vpx_integer.h" //------------------------------------------------------------------------------ // DC 4x4 -static INLINE uint16x4_t dc_sum_4(const uint8_t *ref) { - const uint8x8_t ref_u8 = vld1_u8(ref); - const uint16x4_t p0 = vpaddl_u8(ref_u8); - return vpadd_u16(p0, p0); +static INLINE uint16_t dc_sum_4(const uint8_t *ref) { + return horizontal_add_uint8x4(load_unaligned_u8_4x1(ref)); } static INLINE void dc_store_4x4(uint8_t *dst, ptrdiff_t stride, const uint8x8_t dc) { - const uint8x8_t dc_dup = vdup_lane_u8(dc, 0); int i; for (i = 0; i < 4; ++i, dst += stride) { - vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(dc_dup), 0); + vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(dc), 0); } } void vpx_dc_predictor_4x4_neon(uint8_t *dst, ptrdiff_t stride, const uint8_t *above, const uint8_t *left) { - const uint8x8_t a = vld1_u8(above); - const uint8x8_t l = vld1_u8(left); - const uint16x8_t al = vaddl_u8(a, l); - uint16x4_t sum; - uint8x8_t dc; - sum = vpadd_u16(vget_low_u16(al), vget_low_u16(al)); - sum = vpadd_u16(sum, sum); - dc = vreinterpret_u8_u16(vrshr_n_u16(sum, 3)); + const uint8x8_t a = load_unaligned_u8_4x1(above); + const uint8x8_t l = load_unaligned_u8_4x1(left); + const uint16x4_t al = vget_low_u16(vaddl_u8(a, l)); + const uint16_t sum = horizontal_add_uint16x4(al); + const uint8x8_t dc = vrshrn_n_u16(vdupq_n_u16(sum), 3); dc_store_4x4(dst, stride, dc); } void vpx_dc_left_predictor_4x4_neon(uint8_t *dst, ptrdiff_t stride, const uint8_t *above, const uint8_t *left) { - const uint16x4_t sum = dc_sum_4(left); - const uint8x8_t dc = vreinterpret_u8_u16(vrshr_n_u16(sum, 2)); + const uint16_t sum = dc_sum_4(left); + const uint8x8_t dc = vrshrn_n_u16(vdupq_n_u16(sum), 2); (void)above; dc_store_4x4(dst, stride, dc); } void vpx_dc_top_predictor_4x4_neon(uint8_t *dst, ptrdiff_t stride, const uint8_t *above, const uint8_t *left) { - const uint16x4_t sum = dc_sum_4(above); - const uint8x8_t dc = vreinterpret_u8_u16(vrshr_n_u16(sum, 2)); + const uint16_t sum = dc_sum_4(above); + const uint8x8_t dc = vrshrn_n_u16(vdupq_n_u16(sum), 2); (void)left; dc_store_4x4(dst, stride, dc); } @@ -72,19 +68,15 @@ void vpx_dc_128_predictor_4x4_neon(uint8_t *dst, ptrdiff_t stride, //------------------------------------------------------------------------------ // DC 8x8 -static INLINE uint16x4_t dc_sum_8(const uint8_t *ref) { - const uint8x8_t ref_u8 = vld1_u8(ref); - uint16x4_t sum = vpaddl_u8(ref_u8); - sum = vpadd_u16(sum, sum); - return vpadd_u16(sum, sum); +static INLINE uint16_t dc_sum_8(const uint8_t *ref) { + return horizontal_add_uint8x8(vld1_u8(ref)); } static INLINE void dc_store_8x8(uint8_t *dst, ptrdiff_t stride, const uint8x8_t dc) { - const uint8x8_t dc_dup = vdup_lane_u8(dc, 0); int i; for (i = 0; i < 8; ++i, dst += stride) { - vst1_u8(dst, dc_dup); + vst1_u8(dst, dc); } } @@ -92,28 +84,24 @@ void vpx_dc_predictor_8x8_neon(uint8_t *dst, ptrdiff_t stride, const uint8_t *above, const uint8_t *left) { const uint8x8_t above_u8 = vld1_u8(above); const uint8x8_t left_u8 = vld1_u8(left); - const uint8x16_t above_and_left = vcombine_u8(above_u8, left_u8); - const uint16x8_t p0 = vpaddlq_u8(above_and_left); - uint16x4_t sum = vadd_u16(vget_low_u16(p0), vget_high_u16(p0)); - uint8x8_t dc; - sum = vpadd_u16(sum, sum); - sum = vpadd_u16(sum, sum); - dc = vreinterpret_u8_u16(vrshr_n_u16(sum, 4)); + const uint16x8_t al = vaddl_u8(above_u8, left_u8); + const uint16_t sum = horizontal_add_uint16x8(al); + const uint8x8_t dc = vrshrn_n_u16(vdupq_n_u16(sum), 4); dc_store_8x8(dst, stride, dc); } void vpx_dc_left_predictor_8x8_neon(uint8_t *dst, ptrdiff_t stride, const uint8_t *above, const uint8_t *left) { - const uint16x4_t sum = dc_sum_8(left); - const uint8x8_t dc = vreinterpret_u8_u16(vrshr_n_u16(sum, 3)); + const uint16_t sum = dc_sum_8(left); + const uint8x8_t dc = vrshrn_n_u16(vdupq_n_u16(sum), 3); (void)above; dc_store_8x8(dst, stride, dc); } void vpx_dc_top_predictor_8x8_neon(uint8_t *dst, ptrdiff_t stride, const uint8_t *above, const uint8_t *left) { - const uint16x4_t sum = dc_sum_8(above); - const uint8x8_t dc = vreinterpret_u8_u16(vrshr_n_u16(sum, 3)); + const uint16_t sum = dc_sum_8(above); + const uint8x8_t dc = vrshrn_n_u16(vdupq_n_u16(sum), 3); (void)left; dc_store_8x8(dst, stride, dc); } @@ -129,20 +117,15 @@ void vpx_dc_128_predictor_8x8_neon(uint8_t *dst, ptrdiff_t stride, //------------------------------------------------------------------------------ // DC 16x16 -static INLINE uint16x4_t dc_sum_16(const uint8_t *ref) { - const uint8x16_t ref_u8 = vld1q_u8(ref); - const uint16x8_t p0 = vpaddlq_u8(ref_u8); - uint16x4_t sum = vadd_u16(vget_low_u16(p0), vget_high_u16(p0)); - sum = vpadd_u16(sum, sum); - return vpadd_u16(sum, sum); +static INLINE uint16_t dc_sum_16(const uint8_t *ref) { + return horizontal_add_uint8x16(vld1q_u8(ref)); } static INLINE void dc_store_16x16(uint8_t *dst, ptrdiff_t stride, - const uint8x8_t dc) { - const uint8x16_t dc_dup = vdupq_lane_u8(dc, 0); + const uint8x16_t dc) { int i; for (i = 0; i < 16; ++i, dst += stride) { - vst1q_u8(dst, dc_dup); + vst1q_u8(dst + 0, dc); } } @@ -150,22 +133,19 @@ void vpx_dc_predictor_16x16_neon(uint8_t *dst, ptrdiff_t stride, const uint8_t *above, const uint8_t *left) { const uint8x16_t ref0 = vld1q_u8(above); const uint8x16_t ref1 = vld1q_u8(left); - const uint16x8_t p0 = vpaddlq_u8(ref0); - const uint16x8_t p1 = vpaddlq_u8(ref1); - const uint16x8_t p2 = vaddq_u16(p0, p1); - uint16x4_t sum = vadd_u16(vget_low_u16(p2), vget_high_u16(p2)); - uint8x8_t dc; - sum = vpadd_u16(sum, sum); - sum = vpadd_u16(sum, sum); - dc = vreinterpret_u8_u16(vrshr_n_u16(sum, 5)); + const uint16x8_t a = vpaddlq_u8(ref0); + const uint16x8_t l = vpaddlq_u8(ref1); + const uint16x8_t al = vaddq_u16(a, l); + const uint16_t sum = horizontal_add_uint16x8(al); + const uint8x16_t dc = vdupq_lane_u8(vrshrn_n_u16(vdupq_n_u16(sum), 5), 0); dc_store_16x16(dst, stride, dc); } void vpx_dc_left_predictor_16x16_neon(uint8_t *dst, ptrdiff_t stride, const uint8_t *above, const uint8_t *left) { - const uint16x4_t sum = dc_sum_16(left); - const uint8x8_t dc = vreinterpret_u8_u16(vrshr_n_u16(sum, 4)); + const uint16_t sum = dc_sum_16(left); + const uint8x16_t dc = vdupq_lane_u8(vrshrn_n_u16(vdupq_n_u16(sum), 4), 0); (void)above; dc_store_16x16(dst, stride, dc); } @@ -173,8 +153,8 @@ void vpx_dc_left_predictor_16x16_neon(uint8_t *dst, ptrdiff_t stride, void vpx_dc_top_predictor_16x16_neon(uint8_t *dst, ptrdiff_t stride, const uint8_t *above, const uint8_t *left) { - const uint16x4_t sum = dc_sum_16(above); - const uint8x8_t dc = vreinterpret_u8_u16(vrshr_n_u16(sum, 4)); + const uint16_t sum = dc_sum_16(above); + const uint8x16_t dc = vdupq_lane_u8(vrshrn_n_u16(vdupq_n_u16(sum), 4), 0); (void)left; dc_store_16x16(dst, stride, dc); } @@ -182,7 +162,7 @@ void vpx_dc_top_predictor_16x16_neon(uint8_t *dst, ptrdiff_t stride, void vpx_dc_128_predictor_16x16_neon(uint8_t *dst, ptrdiff_t stride, const uint8_t *above, const uint8_t *left) { - const uint8x8_t dc = vdup_n_u8(0x80); + const uint8x16_t dc = vdupq_n_u8(0x80); (void)above; (void)left; dc_store_16x16(dst, stride, dc); @@ -191,51 +171,41 @@ void vpx_dc_128_predictor_16x16_neon(uint8_t *dst, ptrdiff_t stride, //------------------------------------------------------------------------------ // DC 32x32 -static INLINE uint16x4_t dc_sum_32(const uint8_t *ref) { - const uint8x16x2_t r = vld2q_u8(ref); - const uint16x8_t p0 = vpaddlq_u8(r.val[0]); - const uint16x8_t p1 = vpaddlq_u8(r.val[1]); - const uint16x8_t p2 = vaddq_u16(p0, p1); - uint16x4_t sum = vadd_u16(vget_low_u16(p2), vget_high_u16(p2)); - sum = vpadd_u16(sum, sum); - return vpadd_u16(sum, sum); +static INLINE uint16_t dc_sum_32(const uint8_t *ref) { + const uint8x16_t r0 = vld1q_u8(ref + 0); + const uint8x16_t r1 = vld1q_u8(ref + 16); + const uint16x8_t r01 = vaddq_u16(vpaddlq_u8(r0), vpaddlq_u8(r1)); + return horizontal_add_uint16x8(r01); } static INLINE void dc_store_32x32(uint8_t *dst, ptrdiff_t stride, - const uint8x8_t dc) { - uint8x16x2_t dc_dup; + const uint8x16_t dc) { int i; - dc_dup.val[0] = dc_dup.val[1] = vdupq_lane_u8(dc, 0); - for (i = 0; i < 32; ++i, dst += stride) { - vst2q_u8(dst, dc_dup); + vst1q_u8(dst + 0, dc); + vst1q_u8(dst + 16, dc); } } void vpx_dc_predictor_32x32_neon(uint8_t *dst, ptrdiff_t stride, const uint8_t *above, const uint8_t *left) { - const uint8x16x2_t a = vld2q_u8(above); - const uint8x16x2_t l = vld2q_u8(left); - const uint16x8_t pa0 = vpaddlq_u8(a.val[0]); - const uint16x8_t pl0 = vpaddlq_u8(l.val[0]); - const uint16x8_t pa1 = vpaddlq_u8(a.val[1]); - const uint16x8_t pl1 = vpaddlq_u8(l.val[1]); - const uint16x8_t pa = vaddq_u16(pa0, pa1); - const uint16x8_t pl = vaddq_u16(pl0, pl1); - const uint16x8_t pal = vaddq_u16(pa, pl); - uint16x4_t sum = vadd_u16(vget_low_u16(pal), vget_high_u16(pal)); - uint8x8_t dc; - sum = vpadd_u16(sum, sum); - sum = vpadd_u16(sum, sum); - dc = vreinterpret_u8_u16(vrshr_n_u16(sum, 6)); + const uint8x16_t a0 = vld1q_u8(above + 0); + const uint8x16_t a1 = vld1q_u8(above + 16); + const uint8x16_t l0 = vld1q_u8(left + 0); + const uint8x16_t l1 = vld1q_u8(left + 16); + const uint16x8_t a01 = vaddq_u16(vpaddlq_u8(a0), vpaddlq_u8(a1)); + const uint16x8_t l01 = vaddq_u16(vpaddlq_u8(l0), vpaddlq_u8(l1)); + const uint16x8_t al = vaddq_u16(a01, l01); + const uint16_t sum = horizontal_add_uint16x8(al); + const uint8x16_t dc = vdupq_lane_u8(vrshrn_n_u16(vdupq_n_u16(sum), 6), 0); dc_store_32x32(dst, stride, dc); } void vpx_dc_left_predictor_32x32_neon(uint8_t *dst, ptrdiff_t stride, const uint8_t *above, const uint8_t *left) { - const uint16x4_t sum = dc_sum_32(left); - const uint8x8_t dc = vreinterpret_u8_u16(vrshr_n_u16(sum, 5)); + const uint16_t sum = dc_sum_32(left); + const uint8x16_t dc = vdupq_lane_u8(vrshrn_n_u16(vdupq_n_u16(sum), 5), 0); (void)above; dc_store_32x32(dst, stride, dc); } @@ -243,8 +213,8 @@ void vpx_dc_left_predictor_32x32_neon(uint8_t *dst, ptrdiff_t stride, void vpx_dc_top_predictor_32x32_neon(uint8_t *dst, ptrdiff_t stride, const uint8_t *above, const uint8_t *left) { - const uint16x4_t sum = dc_sum_32(above); - const uint8x8_t dc = vreinterpret_u8_u16(vrshr_n_u16(sum, 5)); + const uint16_t sum = dc_sum_32(above); + const uint8x16_t dc = vdupq_lane_u8(vrshrn_n_u16(vdupq_n_u16(sum), 5), 0); (void)left; dc_store_32x32(dst, stride, dc); } @@ -252,7 +222,7 @@ void vpx_dc_top_predictor_32x32_neon(uint8_t *dst, ptrdiff_t stride, void vpx_dc_128_predictor_32x32_neon(uint8_t *dst, ptrdiff_t stride, const uint8_t *above, const uint8_t *left) { - const uint8x8_t dc = vdup_n_u8(0x80); + const uint8x16_t dc = vdupq_n_u8(0x80); (void)above; (void)left; dc_store_32x32(dst, stride, dc); @@ -262,123 +232,629 @@ void vpx_dc_128_predictor_32x32_neon(uint8_t *dst, ptrdiff_t stride, void vpx_d45_predictor_4x4_neon(uint8_t *dst, ptrdiff_t stride, const uint8_t *above, const uint8_t *left) { - const uint8x8_t ABCDEFGH = vld1_u8(above); - const uint64x1_t A1 = vshr_n_u64(vreinterpret_u64_u8(ABCDEFGH), 8); - const uint64x1_t A2 = vshr_n_u64(vreinterpret_u64_u8(ABCDEFGH), 16); - const uint8x8_t BCDEFGH0 = vreinterpret_u8_u64(A1); - const uint8x8_t CDEFGH00 = vreinterpret_u8_u64(A2); - const uint8x8_t avg1 = vhadd_u8(ABCDEFGH, CDEFGH00); - const uint8x8_t avg2 = vrhadd_u8(avg1, BCDEFGH0); - const uint64x1_t avg2_u64 = vreinterpret_u64_u8(avg2); - const uint32x2_t r0 = vreinterpret_u32_u8(avg2); - const uint32x2_t r1 = vreinterpret_u32_u64(vshr_n_u64(avg2_u64, 8)); - const uint32x2_t r2 = vreinterpret_u32_u64(vshr_n_u64(avg2_u64, 16)); - const uint32x2_t r3 = vreinterpret_u32_u64(vshr_n_u64(avg2_u64, 24)); + uint8x8_t a0, a1, a2, d0; + uint8_t a7; (void)left; - vst1_lane_u32((uint32_t *)(dst + 0 * stride), r0, 0); - vst1_lane_u32((uint32_t *)(dst + 1 * stride), r1, 0); - vst1_lane_u32((uint32_t *)(dst + 2 * stride), r2, 0); - vst1_lane_u32((uint32_t *)(dst + 3 * stride), r3, 0); - vst1_lane_u8(dst + 3 * stride + 3, ABCDEFGH, 7); -} -static INLINE void d45_store_8(uint8_t **dst, const ptrdiff_t stride, - const uint8x8_t above_right, uint8x8_t *row) { - *row = vext_u8(*row, above_right, 1); - vst1_u8(*dst, *row); - *dst += stride; + a0 = vld1_u8(above); + a7 = above[7]; + + // [ above[1], ..., above[6], x, x ] + a1 = vext_u8(a0, a0, 1); + // [ above[2], ..., above[7], x, x ] + a2 = vext_u8(a0, a0, 2); + + // d0[0] = AVG3(above[0], above[1], above[2]); + // ... + // d0[5] = AVG3(above[5], above[6], above[7]); + // d0[6] = x (don't care) + // d0[7] = x (don't care) + d0 = vrhadd_u8(vhadd_u8(a0, a2), a1); + + // We want: + // stride=0 [ d0[0], d0[1], d0[2], d0[3] ] + // stride=1 [ d0[1], d0[2], d0[3], d0[4] ] + // stride=2 [ d0[2], d0[3], d0[4], d0[5] ] + // stride=2 [ d0[3], d0[4], d0[5], above[7] ] + store_u8_4x1(dst + 0 * stride, d0); + store_u8_4x1(dst + 1 * stride, vext_u8(d0, d0, 1)); + store_u8_4x1(dst + 2 * stride, vext_u8(d0, d0, 2)); + store_u8_4x1(dst + 3 * stride, vext_u8(d0, d0, 3)); + + // We stored d0[6] above, so fixup into above[7]. + dst[3 * stride + 3] = a7; } void vpx_d45_predictor_8x8_neon(uint8_t *dst, ptrdiff_t stride, const uint8_t *above, const uint8_t *left) { - const uint8x8_t A0 = vld1_u8(above); - const uint8x8_t above_right = vdup_lane_u8(A0, 7); - const uint8x8_t A1 = vext_u8(A0, above_right, 1); - const uint8x8_t A2 = vext_u8(A0, above_right, 2); - const uint8x8_t avg1 = vhadd_u8(A0, A2); - uint8x8_t row = vrhadd_u8(avg1, A1); + uint8x8_t ax0, a0, a1, a7, d0; (void)left; - vst1_u8(dst, row); - dst += stride; - d45_store_8(&dst, stride, above_right, &row); - d45_store_8(&dst, stride, above_right, &row); - d45_store_8(&dst, stride, above_right, &row); - d45_store_8(&dst, stride, above_right, &row); - d45_store_8(&dst, stride, above_right, &row); - d45_store_8(&dst, stride, above_right, &row); - vst1_u8(dst, above_right); -} - -static INLINE void d45_store_16(uint8_t **dst, const ptrdiff_t stride, - const uint8x16_t above_right, uint8x16_t *row) { - *row = vextq_u8(*row, above_right, 1); - vst1q_u8(*dst, *row); - *dst += stride; + a0 = vld1_u8(above + 0); + a1 = vld1_u8(above + 1); + a7 = vld1_dup_u8(above + 7); + + // We want to calculate the AVG3 result in lanes 1-7 inclusive so we can + // shift in above[7] later, so shift a0 across by one to get the right + // inputs: + // [ x, above[0], ... , above[6] ] + ax0 = vext_u8(a0, a0, 7); + + // d0[0] = x (don't care) + // d0[1] = AVG3(above[0], above[1], above[2]); + // ... + // d0[7] = AVG3(above[6], above[7], above[8]); + d0 = vrhadd_u8(vhadd_u8(ax0, a1), a0); + + // Undo the earlier ext, incrementally shift in duplicates of above[7]. + vst1_u8(dst + 0 * stride, vext_u8(d0, a7, 1)); + vst1_u8(dst + 1 * stride, vext_u8(d0, a7, 2)); + vst1_u8(dst + 2 * stride, vext_u8(d0, a7, 3)); + vst1_u8(dst + 3 * stride, vext_u8(d0, a7, 4)); + vst1_u8(dst + 4 * stride, vext_u8(d0, a7, 5)); + vst1_u8(dst + 5 * stride, vext_u8(d0, a7, 6)); + vst1_u8(dst + 6 * stride, vext_u8(d0, a7, 7)); + vst1_u8(dst + 7 * stride, a7); } void vpx_d45_predictor_16x16_neon(uint8_t *dst, ptrdiff_t stride, const uint8_t *above, const uint8_t *left) { - const uint8x16_t A0 = vld1q_u8(above); - const uint8x16_t above_right = vdupq_lane_u8(vget_high_u8(A0), 7); - const uint8x16_t A1 = vextq_u8(A0, above_right, 1); - const uint8x16_t A2 = vextq_u8(A0, above_right, 2); - const uint8x16_t avg1 = vhaddq_u8(A0, A2); - uint8x16_t row = vrhaddq_u8(avg1, A1); + uint8x16_t ax0, a0, a1, a15, d0; (void)left; - vst1q_u8(dst, row); - dst += stride; - d45_store_16(&dst, stride, above_right, &row); - d45_store_16(&dst, stride, above_right, &row); - d45_store_16(&dst, stride, above_right, &row); - d45_store_16(&dst, stride, above_right, &row); - d45_store_16(&dst, stride, above_right, &row); - d45_store_16(&dst, stride, above_right, &row); - d45_store_16(&dst, stride, above_right, &row); - d45_store_16(&dst, stride, above_right, &row); - d45_store_16(&dst, stride, above_right, &row); - d45_store_16(&dst, stride, above_right, &row); - d45_store_16(&dst, stride, above_right, &row); - d45_store_16(&dst, stride, above_right, &row); - d45_store_16(&dst, stride, above_right, &row); - d45_store_16(&dst, stride, above_right, &row); - vst1q_u8(dst, above_right); + a0 = vld1q_u8(above + 0); + a1 = vld1q_u8(above + 1); + a15 = vld1q_dup_u8(above + 15); + + // We want to calculate the AVG3 result in lanes 1-15 inclusive so we can + // shift in above[15] later, so shift a0 across by one to get the right + // inputs: + // [ x, above[0], ... , above[14] ] + ax0 = vextq_u8(a0, a0, 15); + + // d0[0] = x (don't care) + // d0[1] = AVG3(above[0], above[1], above[2]); + // ... + // d0[15] = AVG3(above[14], above[15], above[16]); + d0 = vrhaddq_u8(vhaddq_u8(ax0, a1), a0); + + // Undo the earlier ext, incrementally shift in duplicates of above[15]. + vst1q_u8(dst + 0 * stride, vextq_u8(d0, a15, 1)); + vst1q_u8(dst + 1 * stride, vextq_u8(d0, a15, 2)); + vst1q_u8(dst + 2 * stride, vextq_u8(d0, a15, 3)); + vst1q_u8(dst + 3 * stride, vextq_u8(d0, a15, 4)); + vst1q_u8(dst + 4 * stride, vextq_u8(d0, a15, 5)); + vst1q_u8(dst + 5 * stride, vextq_u8(d0, a15, 6)); + vst1q_u8(dst + 6 * stride, vextq_u8(d0, a15, 7)); + vst1q_u8(dst + 7 * stride, vextq_u8(d0, a15, 8)); + vst1q_u8(dst + 8 * stride, vextq_u8(d0, a15, 9)); + vst1q_u8(dst + 9 * stride, vextq_u8(d0, a15, 10)); + vst1q_u8(dst + 10 * stride, vextq_u8(d0, a15, 11)); + vst1q_u8(dst + 11 * stride, vextq_u8(d0, a15, 12)); + vst1q_u8(dst + 12 * stride, vextq_u8(d0, a15, 13)); + vst1q_u8(dst + 13 * stride, vextq_u8(d0, a15, 14)); + vst1q_u8(dst + 14 * stride, vextq_u8(d0, a15, 15)); + vst1q_u8(dst + 15 * stride, a15); } void vpx_d45_predictor_32x32_neon(uint8_t *dst, ptrdiff_t stride, const uint8_t *above, const uint8_t *left) { - const uint8x16_t A0_0 = vld1q_u8(above); - const uint8x16_t A0_1 = vld1q_u8(above + 16); - const uint8x16_t above_right = vdupq_lane_u8(vget_high_u8(A0_1), 7); - const uint8x16_t A1_0 = vld1q_u8(above + 1); - const uint8x16_t A1_1 = vld1q_u8(above + 17); - const uint8x16_t A2_0 = vld1q_u8(above + 2); - const uint8x16_t A2_1 = vld1q_u8(above + 18); - const uint8x16_t avg_0 = vhaddq_u8(A0_0, A2_0); - const uint8x16_t avg_1 = vhaddq_u8(A0_1, A2_1); - uint8x16_t row_0 = vrhaddq_u8(avg_0, A1_0); - uint8x16_t row_1 = vrhaddq_u8(avg_1, A1_1); - int i; + uint8x16_t ax0, a0, a1, a15, a16, a17, a31, d0[2]; (void)left; - vst1q_u8(dst, row_0); - dst += 16; - vst1q_u8(dst, row_1); - dst += stride - 16; + a0 = vld1q_u8(above + 0); + a1 = vld1q_u8(above + 1); + a15 = vld1q_u8(above + 15); + a16 = vld1q_u8(above + 16); + a17 = vld1q_u8(above + 17); + a31 = vld1q_dup_u8(above + 31); + + // We want to calculate the AVG3 result in lanes 1-15 inclusive so we can + // shift in above[15] later, so shift a0 across by one to get the right + // inputs: + // [ x, above[0], ... , above[14] ] + ax0 = vextq_u8(a0, a0, 15); + + // d0[0] = x (don't care) + // d0[1] = AVG3(above[0], above[1], above[2]); + // ... + // d0[15] = AVG3(above[14], above[15], above[16]); + d0[0] = vrhaddq_u8(vhaddq_u8(ax0, a1), a0); + d0[1] = vrhaddq_u8(vhaddq_u8(a15, a17), a16); + + // Undo the earlier ext, incrementally shift in duplicates of above[15]. + vst1q_u8(dst + 0 * stride + 0, vextq_u8(d0[0], d0[1], 1)); + vst1q_u8(dst + 0 * stride + 16, vextq_u8(d0[1], a31, 1)); + vst1q_u8(dst + 1 * stride + 0, vextq_u8(d0[0], d0[1], 2)); + vst1q_u8(dst + 1 * stride + 16, vextq_u8(d0[1], a31, 2)); + vst1q_u8(dst + 2 * stride + 0, vextq_u8(d0[0], d0[1], 3)); + vst1q_u8(dst + 2 * stride + 16, vextq_u8(d0[1], a31, 3)); + vst1q_u8(dst + 3 * stride + 0, vextq_u8(d0[0], d0[1], 4)); + vst1q_u8(dst + 3 * stride + 16, vextq_u8(d0[1], a31, 4)); + vst1q_u8(dst + 4 * stride + 0, vextq_u8(d0[0], d0[1], 5)); + vst1q_u8(dst + 4 * stride + 16, vextq_u8(d0[1], a31, 5)); + vst1q_u8(dst + 5 * stride + 0, vextq_u8(d0[0], d0[1], 6)); + vst1q_u8(dst + 5 * stride + 16, vextq_u8(d0[1], a31, 6)); + vst1q_u8(dst + 6 * stride + 0, vextq_u8(d0[0], d0[1], 7)); + vst1q_u8(dst + 6 * stride + 16, vextq_u8(d0[1], a31, 7)); + vst1q_u8(dst + 7 * stride + 0, vextq_u8(d0[0], d0[1], 8)); + vst1q_u8(dst + 7 * stride + 16, vextq_u8(d0[1], a31, 8)); + vst1q_u8(dst + 8 * stride + 0, vextq_u8(d0[0], d0[1], 9)); + vst1q_u8(dst + 8 * stride + 16, vextq_u8(d0[1], a31, 9)); + vst1q_u8(dst + 9 * stride + 0, vextq_u8(d0[0], d0[1], 10)); + vst1q_u8(dst + 9 * stride + 16, vextq_u8(d0[1], a31, 10)); + vst1q_u8(dst + 10 * stride + 0, vextq_u8(d0[0], d0[1], 11)); + vst1q_u8(dst + 10 * stride + 16, vextq_u8(d0[1], a31, 11)); + vst1q_u8(dst + 11 * stride + 0, vextq_u8(d0[0], d0[1], 12)); + vst1q_u8(dst + 11 * stride + 16, vextq_u8(d0[1], a31, 12)); + vst1q_u8(dst + 12 * stride + 0, vextq_u8(d0[0], d0[1], 13)); + vst1q_u8(dst + 12 * stride + 16, vextq_u8(d0[1], a31, 13)); + vst1q_u8(dst + 13 * stride + 0, vextq_u8(d0[0], d0[1], 14)); + vst1q_u8(dst + 13 * stride + 16, vextq_u8(d0[1], a31, 14)); + vst1q_u8(dst + 14 * stride + 0, vextq_u8(d0[0], d0[1], 15)); + vst1q_u8(dst + 14 * stride + 16, vextq_u8(d0[1], a31, 15)); + vst1q_u8(dst + 15 * stride + 0, d0[1]); + vst1q_u8(dst + 15 * stride + 16, a31); + + vst1q_u8(dst + 16 * stride + 0, vextq_u8(d0[1], a31, 1)); + vst1q_u8(dst + 16 * stride + 16, a31); + vst1q_u8(dst + 17 * stride + 0, vextq_u8(d0[1], a31, 2)); + vst1q_u8(dst + 17 * stride + 16, a31); + vst1q_u8(dst + 18 * stride + 0, vextq_u8(d0[1], a31, 3)); + vst1q_u8(dst + 18 * stride + 16, a31); + vst1q_u8(dst + 19 * stride + 0, vextq_u8(d0[1], a31, 4)); + vst1q_u8(dst + 19 * stride + 16, a31); + vst1q_u8(dst + 20 * stride + 0, vextq_u8(d0[1], a31, 5)); + vst1q_u8(dst + 20 * stride + 16, a31); + vst1q_u8(dst + 21 * stride + 0, vextq_u8(d0[1], a31, 6)); + vst1q_u8(dst + 21 * stride + 16, a31); + vst1q_u8(dst + 22 * stride + 0, vextq_u8(d0[1], a31, 7)); + vst1q_u8(dst + 22 * stride + 16, a31); + vst1q_u8(dst + 23 * stride + 0, vextq_u8(d0[1], a31, 8)); + vst1q_u8(dst + 23 * stride + 16, a31); + vst1q_u8(dst + 24 * stride + 0, vextq_u8(d0[1], a31, 9)); + vst1q_u8(dst + 24 * stride + 16, a31); + vst1q_u8(dst + 25 * stride + 0, vextq_u8(d0[1], a31, 10)); + vst1q_u8(dst + 25 * stride + 16, a31); + vst1q_u8(dst + 26 * stride + 0, vextq_u8(d0[1], a31, 11)); + vst1q_u8(dst + 26 * stride + 16, a31); + vst1q_u8(dst + 27 * stride + 0, vextq_u8(d0[1], a31, 12)); + vst1q_u8(dst + 27 * stride + 16, a31); + vst1q_u8(dst + 28 * stride + 0, vextq_u8(d0[1], a31, 13)); + vst1q_u8(dst + 28 * stride + 16, a31); + vst1q_u8(dst + 29 * stride + 0, vextq_u8(d0[1], a31, 14)); + vst1q_u8(dst + 29 * stride + 16, a31); + vst1q_u8(dst + 30 * stride + 0, vextq_u8(d0[1], a31, 15)); + vst1q_u8(dst + 30 * stride + 16, a31); + vst1q_u8(dst + 31 * stride + 0, a31); + vst1q_u8(dst + 31 * stride + 16, a31); +} - for (i = 0; i < 30; ++i) { - row_0 = vextq_u8(row_0, row_1, 1); - row_1 = vextq_u8(row_1, above_right, 1); - vst1q_u8(dst, row_0); - dst += 16; - vst1q_u8(dst, row_1); - dst += stride - 16; - } +// ----------------------------------------------------------------------------- + +void vpx_d63_predictor_4x4_neon(uint8_t *dst, ptrdiff_t stride, + const uint8_t *above, const uint8_t *left) { + uint8x8_t a0, a1, a2, a3, d0, d1, d2, d3; + (void)left; + + a0 = load_unaligned_u8_4x1(above + 0); + a1 = load_unaligned_u8_4x1(above + 1); + a2 = load_unaligned_u8_4x1(above + 2); + a3 = load_unaligned_u8_4x1(above + 3); + + d0 = vrhadd_u8(a0, a1); + d1 = vrhadd_u8(vhadd_u8(a0, a2), a1); + d2 = vrhadd_u8(a1, a2); + d3 = vrhadd_u8(vhadd_u8(a1, a3), a2); + + store_u8_4x1(dst + 0 * stride, d0); + store_u8_4x1(dst + 1 * stride, d1); + store_u8_4x1(dst + 2 * stride, d2); + store_u8_4x1(dst + 3 * stride, d3); +} + +void vpx_d63_predictor_8x8_neon(uint8_t *dst, ptrdiff_t stride, + const uint8_t *above, const uint8_t *left) { + uint8x8_t a0, a1, a2, a7, d0, d1; + (void)left; + + a0 = vld1_u8(above + 0); + a1 = vld1_u8(above + 1); + a2 = vld1_u8(above + 2); + a7 = vld1_dup_u8(above + 7); + + d0 = vrhadd_u8(a0, a1); + d1 = vrhadd_u8(vhadd_u8(a0, a2), a1); + + vst1_u8(dst + 0 * stride, d0); + vst1_u8(dst + 1 * stride, d1); + + d0 = vext_u8(d0, d0, 7); + d1 = vext_u8(d1, d1, 7); - vst1q_u8(dst, above_right); - dst += 16; - vst1q_u8(dst, row_1); + vst1_u8(dst + 2 * stride, vext_u8(d0, a7, 2)); + vst1_u8(dst + 3 * stride, vext_u8(d1, a7, 2)); + vst1_u8(dst + 4 * stride, vext_u8(d0, a7, 3)); + vst1_u8(dst + 5 * stride, vext_u8(d1, a7, 3)); + vst1_u8(dst + 6 * stride, vext_u8(d0, a7, 4)); + vst1_u8(dst + 7 * stride, vext_u8(d1, a7, 4)); +} + +void vpx_d63_predictor_16x16_neon(uint8_t *dst, ptrdiff_t stride, + const uint8_t *above, const uint8_t *left) { + uint8x16_t a0, a1, a2, a15, d0, d1; + (void)left; + + a0 = vld1q_u8(above + 0); + a1 = vld1q_u8(above + 1); + a2 = vld1q_u8(above + 2); + a15 = vld1q_dup_u8(above + 15); + + d0 = vrhaddq_u8(a0, a1); + d1 = vrhaddq_u8(vhaddq_u8(a0, a2), a1); + + vst1q_u8(dst + 0 * stride, d0); + vst1q_u8(dst + 1 * stride, d1); + + d0 = vextq_u8(d0, d0, 15); + d1 = vextq_u8(d1, d1, 15); + + vst1q_u8(dst + 2 * stride, vextq_u8(d0, a15, 2)); + vst1q_u8(dst + 3 * stride, vextq_u8(d1, a15, 2)); + vst1q_u8(dst + 4 * stride, vextq_u8(d0, a15, 3)); + vst1q_u8(dst + 5 * stride, vextq_u8(d1, a15, 3)); + vst1q_u8(dst + 6 * stride, vextq_u8(d0, a15, 4)); + vst1q_u8(dst + 7 * stride, vextq_u8(d1, a15, 4)); + vst1q_u8(dst + 8 * stride, vextq_u8(d0, a15, 5)); + vst1q_u8(dst + 9 * stride, vextq_u8(d1, a15, 5)); + vst1q_u8(dst + 10 * stride, vextq_u8(d0, a15, 6)); + vst1q_u8(dst + 11 * stride, vextq_u8(d1, a15, 6)); + vst1q_u8(dst + 12 * stride, vextq_u8(d0, a15, 7)); + vst1q_u8(dst + 13 * stride, vextq_u8(d1, a15, 7)); + vst1q_u8(dst + 14 * stride, vextq_u8(d0, a15, 8)); + vst1q_u8(dst + 15 * stride, vextq_u8(d1, a15, 8)); +} + +void vpx_d63_predictor_32x32_neon(uint8_t *dst, ptrdiff_t stride, + const uint8_t *above, const uint8_t *left) { + uint8x16_t a0, a1, a2, a16, a17, a18, a31, d0_lo, d0_hi, d1_lo, d1_hi; + (void)left; + + a0 = vld1q_u8(above + 0); + a1 = vld1q_u8(above + 1); + a2 = vld1q_u8(above + 2); + a16 = vld1q_u8(above + 16); + a17 = vld1q_u8(above + 17); + a18 = vld1q_u8(above + 18); + a31 = vld1q_dup_u8(above + 31); + + d0_lo = vrhaddq_u8(a0, a1); + d0_hi = vrhaddq_u8(a16, a17); + d1_lo = vrhaddq_u8(vhaddq_u8(a0, a2), a1); + d1_hi = vrhaddq_u8(vhaddq_u8(a16, a18), a17); + + vst1q_u8(dst + 0 * stride + 0, d0_lo); + vst1q_u8(dst + 0 * stride + 16, d0_hi); + vst1q_u8(dst + 1 * stride + 0, d1_lo); + vst1q_u8(dst + 1 * stride + 16, d1_hi); + + d0_hi = vextq_u8(d0_lo, d0_hi, 15); + d0_lo = vextq_u8(d0_lo, d0_lo, 15); + d1_hi = vextq_u8(d1_lo, d1_hi, 15); + d1_lo = vextq_u8(d1_lo, d1_lo, 15); + + vst1q_u8(dst + 2 * stride + 0, vextq_u8(d0_lo, d0_hi, 2)); + vst1q_u8(dst + 2 * stride + 16, vextq_u8(d0_hi, a31, 2)); + vst1q_u8(dst + 3 * stride + 0, vextq_u8(d1_lo, d1_hi, 2)); + vst1q_u8(dst + 3 * stride + 16, vextq_u8(d1_hi, a31, 2)); + vst1q_u8(dst + 4 * stride + 0, vextq_u8(d0_lo, d0_hi, 3)); + vst1q_u8(dst + 4 * stride + 16, vextq_u8(d0_hi, a31, 3)); + vst1q_u8(dst + 5 * stride + 0, vextq_u8(d1_lo, d1_hi, 3)); + vst1q_u8(dst + 5 * stride + 16, vextq_u8(d1_hi, a31, 3)); + vst1q_u8(dst + 6 * stride + 0, vextq_u8(d0_lo, d0_hi, 4)); + vst1q_u8(dst + 6 * stride + 16, vextq_u8(d0_hi, a31, 4)); + vst1q_u8(dst + 7 * stride + 0, vextq_u8(d1_lo, d1_hi, 4)); + vst1q_u8(dst + 7 * stride + 16, vextq_u8(d1_hi, a31, 4)); + vst1q_u8(dst + 8 * stride + 0, vextq_u8(d0_lo, d0_hi, 5)); + vst1q_u8(dst + 8 * stride + 16, vextq_u8(d0_hi, a31, 5)); + vst1q_u8(dst + 9 * stride + 0, vextq_u8(d1_lo, d1_hi, 5)); + vst1q_u8(dst + 9 * stride + 16, vextq_u8(d1_hi, a31, 5)); + vst1q_u8(dst + 10 * stride + 0, vextq_u8(d0_lo, d0_hi, 6)); + vst1q_u8(dst + 10 * stride + 16, vextq_u8(d0_hi, a31, 6)); + vst1q_u8(dst + 11 * stride + 0, vextq_u8(d1_lo, d1_hi, 6)); + vst1q_u8(dst + 11 * stride + 16, vextq_u8(d1_hi, a31, 6)); + vst1q_u8(dst + 12 * stride + 0, vextq_u8(d0_lo, d0_hi, 7)); + vst1q_u8(dst + 12 * stride + 16, vextq_u8(d0_hi, a31, 7)); + vst1q_u8(dst + 13 * stride + 0, vextq_u8(d1_lo, d1_hi, 7)); + vst1q_u8(dst + 13 * stride + 16, vextq_u8(d1_hi, a31, 7)); + vst1q_u8(dst + 14 * stride + 0, vextq_u8(d0_lo, d0_hi, 8)); + vst1q_u8(dst + 14 * stride + 16, vextq_u8(d0_hi, a31, 8)); + vst1q_u8(dst + 15 * stride + 0, vextq_u8(d1_lo, d1_hi, 8)); + vst1q_u8(dst + 15 * stride + 16, vextq_u8(d1_hi, a31, 8)); + vst1q_u8(dst + 16 * stride + 0, vextq_u8(d0_lo, d0_hi, 9)); + vst1q_u8(dst + 16 * stride + 16, vextq_u8(d0_hi, a31, 9)); + vst1q_u8(dst + 17 * stride + 0, vextq_u8(d1_lo, d1_hi, 9)); + vst1q_u8(dst + 17 * stride + 16, vextq_u8(d1_hi, a31, 9)); + vst1q_u8(dst + 18 * stride + 0, vextq_u8(d0_lo, d0_hi, 10)); + vst1q_u8(dst + 18 * stride + 16, vextq_u8(d0_hi, a31, 10)); + vst1q_u8(dst + 19 * stride + 0, vextq_u8(d1_lo, d1_hi, 10)); + vst1q_u8(dst + 19 * stride + 16, vextq_u8(d1_hi, a31, 10)); + vst1q_u8(dst + 20 * stride + 0, vextq_u8(d0_lo, d0_hi, 11)); + vst1q_u8(dst + 20 * stride + 16, vextq_u8(d0_hi, a31, 11)); + vst1q_u8(dst + 21 * stride + 0, vextq_u8(d1_lo, d1_hi, 11)); + vst1q_u8(dst + 21 * stride + 16, vextq_u8(d1_hi, a31, 11)); + vst1q_u8(dst + 22 * stride + 0, vextq_u8(d0_lo, d0_hi, 12)); + vst1q_u8(dst + 22 * stride + 16, vextq_u8(d0_hi, a31, 12)); + vst1q_u8(dst + 23 * stride + 0, vextq_u8(d1_lo, d1_hi, 12)); + vst1q_u8(dst + 23 * stride + 16, vextq_u8(d1_hi, a31, 12)); + vst1q_u8(dst + 24 * stride + 0, vextq_u8(d0_lo, d0_hi, 13)); + vst1q_u8(dst + 24 * stride + 16, vextq_u8(d0_hi, a31, 13)); + vst1q_u8(dst + 25 * stride + 0, vextq_u8(d1_lo, d1_hi, 13)); + vst1q_u8(dst + 25 * stride + 16, vextq_u8(d1_hi, a31, 13)); + vst1q_u8(dst + 26 * stride + 0, vextq_u8(d0_lo, d0_hi, 14)); + vst1q_u8(dst + 26 * stride + 16, vextq_u8(d0_hi, a31, 14)); + vst1q_u8(dst + 27 * stride + 0, vextq_u8(d1_lo, d1_hi, 14)); + vst1q_u8(dst + 27 * stride + 16, vextq_u8(d1_hi, a31, 14)); + vst1q_u8(dst + 28 * stride + 0, vextq_u8(d0_lo, d0_hi, 15)); + vst1q_u8(dst + 28 * stride + 16, vextq_u8(d0_hi, a31, 15)); + vst1q_u8(dst + 29 * stride + 0, vextq_u8(d1_lo, d1_hi, 15)); + vst1q_u8(dst + 29 * stride + 16, vextq_u8(d1_hi, a31, 15)); + vst1q_u8(dst + 30 * stride + 0, d0_hi); + vst1q_u8(dst + 30 * stride + 16, a31); + vst1q_u8(dst + 31 * stride + 0, d1_hi); + vst1q_u8(dst + 31 * stride + 16, a31); +} + +// ----------------------------------------------------------------------------- + +void vpx_d117_predictor_4x4_neon(uint8_t *dst, ptrdiff_t stride, + const uint8_t *above, const uint8_t *left) { + // See vpx_d117_predictor_8x8_neon for more details on the implementation. + uint8x8_t az, a0, l0az, d0, d1, d2, d3, col0, col1; + + az = load_unaligned_u8_4x1(above - 1); + a0 = load_unaligned_u8_4x1(above + 0); + // [ left[0], above[-1], above[0], above[1], x, x, x, x ] + l0az = vext_u8(vld1_dup_u8(left), az, 7); + + col0 = vdup_n_u8((above[-1] + 2 * left[0] + left[1] + 2) >> 2); + col1 = vdup_n_u8((left[0] + 2 * left[1] + left[2] + 2) >> 2); + + d0 = vrhadd_u8(az, a0); + d1 = vrhadd_u8(vhadd_u8(l0az, a0), az); + d2 = vext_u8(col0, d0, 7); + d3 = vext_u8(col1, d1, 7); + + store_u8_4x1(dst + 0 * stride, d0); + store_u8_4x1(dst + 1 * stride, d1); + store_u8_4x1(dst + 2 * stride, d2); + store_u8_4x1(dst + 3 * stride, d3); +} + +void vpx_d117_predictor_8x8_neon(uint8_t *dst, ptrdiff_t stride, + const uint8_t *above, const uint8_t *left) { + uint8x8_t az, a0, l0az, d0, d1, l0, l1, azl0, col0, col0_even, col0_odd; + + az = vld1_u8(above - 1); + a0 = vld1_u8(above + 0); + // [ left[0], above[-1], ... , above[5] ] + l0az = vext_u8(vld1_dup_u8(left), az, 7); + + l0 = vld1_u8(left + 0); + // The last lane here is unused, reading left[8] could cause a buffer + // over-read, so just fill with a duplicate of left[0] to avoid needing to + // materialize a zero: + // [ left[1], ... , left[7], x ] + l1 = vext_u8(l0, l0, 1); + // [ above[-1], left[0], ... , left[6] ] + azl0 = vext_u8(vld1_dup_u8(above - 1), l0, 7); + + // d0[0] = AVG2(above[-1], above[0]) + // d0[1] = AVG2(above[0], above[1]) + // ... + // d0[7] = AVG2(above[6], above[7]) + d0 = vrhadd_u8(az, a0); + + // d1[0] = AVG3(left[0], above[-1], above[0]) + // d1[1] = AVG3(above[-1], above[0], above[1]) + // ... + // d1[7] = AVG3(above[5], above[6], above[7]) + d1 = vrhadd_u8(vhadd_u8(l0az, a0), az); + + // The ext instruction shifts elements in from the end of the vector rather + // than the start, so reverse the vector to put the elements to be shifted in + // at the end. The lowest two lanes here are unused: + // col0[7] = AVG3(above[-1], left[0], left[1]) + // col0[6] = AVG3(left[0], left[1], left[2]) + // ... + // col0[2] = AVG3(left[4], left[5], left[6]) + // col0[1] = x (don't care) + // col0[0] = x (don't care) + col0 = vrev64_u8(vrhadd_u8(vhadd_u8(azl0, l1), l0)); + + // We don't care about the first parameter to this uzp since we only ever use + // the high three elements, we just use col0 again since it is already + // available: + // col0_even = [ x, x, x, x, x, col0[3], col0[5], col0[7] ] + // col0_odd = [ x, x, x, x, x, col0[2], col0[4], col0[6] ] + col0_even = vuzp_u8(col0, col0).val[1]; + col0_odd = vuzp_u8(col0, col0).val[0]; + + // Incrementally shift more elements from col0 into d0/1: + // stride=0 [ d0[0], d0[1], d0[2], d0[3], d0[4], d0[5], d0[6], d0[7] ] + // stride=1 [ d1[0], d1[1], d1[2], d1[3], d1[4], d1[5], d1[6], d1[7] ] + // stride=2 [ col0[7], d0[0], d0[1], d0[2], d0[3], d0[4], d0[5], d0[6] ] + // stride=3 [ col0[6], d1[0], d1[1], d1[2], d1[3], d1[4], d1[5], d1[6] ] + // stride=4 [ col0[5], col0[7], d0[0], d0[1], d0[2], d0[3], d0[4], d0[5] ] + // stride=5 [ col0[4], col0[6], d1[0], d1[1], d1[2], d1[3], d1[4], d1[5] ] + // stride=6 [ col0[3], col0[5], col0[7], d0[0], d0[1], d0[2], d0[3], d0[4] ] + // stride=7 [ col0[2], col0[4], col0[6], d1[0], d1[1], d1[2], d1[3], d1[4] ] + vst1_u8(dst + 0 * stride, d0); + vst1_u8(dst + 1 * stride, d1); + vst1_u8(dst + 2 * stride, vext_u8(col0_even, d0, 7)); + vst1_u8(dst + 3 * stride, vext_u8(col0_odd, d1, 7)); + vst1_u8(dst + 4 * stride, vext_u8(col0_even, d0, 6)); + vst1_u8(dst + 5 * stride, vext_u8(col0_odd, d1, 6)); + vst1_u8(dst + 6 * stride, vext_u8(col0_even, d0, 5)); + vst1_u8(dst + 7 * stride, vext_u8(col0_odd, d1, 5)); +} + +void vpx_d117_predictor_16x16_neon(uint8_t *dst, ptrdiff_t stride, + const uint8_t *above, const uint8_t *left) { + // See vpx_d117_predictor_8x8_neon for more details on the implementation. + uint8x16_t az, a0, l0az, d0, d1, l0, l1, azl0, col0, col0_even, col0_odd; + + az = vld1q_u8(above - 1); + a0 = vld1q_u8(above + 0); + // [ left[0], above[-1], ... , above[13] ] + l0az = vextq_u8(vld1q_dup_u8(left), az, 15); + + l0 = vld1q_u8(left + 0); + // The last lane here is unused, reading left[16] could cause a buffer + // over-read, so just fill with a duplicate of left[0] to avoid needing to + // materialize a zero: + // [ left[1], ... , left[15], x ] + l1 = vextq_u8(l0, l0, 1); + // [ above[-1], left[0], ... , left[14] ] + azl0 = vextq_u8(vld1q_dup_u8(above - 1), l0, 15); + + d0 = vrhaddq_u8(az, a0); + d1 = vrhaddq_u8(vhaddq_u8(l0az, a0), az); + + col0 = vrhaddq_u8(vhaddq_u8(azl0, l1), l0); + col0 = vrev64q_u8(vextq_u8(col0, col0, 8)); + + // The low nine lanes here are unused so the first input to the uzp is + // unused, so just use a duplicate of col0 since we have it already. This + // also means that the lowest lane of col0 here is unused. + col0_even = vuzpq_u8(col0, col0).val[1]; + col0_odd = vuzpq_u8(col0, col0).val[0]; + + vst1q_u8(dst + 0 * stride, d0); + vst1q_u8(dst + 1 * stride, d1); + vst1q_u8(dst + 2 * stride, vextq_u8(col0_even, d0, 15)); + vst1q_u8(dst + 3 * stride, vextq_u8(col0_odd, d1, 15)); + vst1q_u8(dst + 4 * stride, vextq_u8(col0_even, d0, 14)); + vst1q_u8(dst + 5 * stride, vextq_u8(col0_odd, d1, 14)); + vst1q_u8(dst + 6 * stride, vextq_u8(col0_even, d0, 13)); + vst1q_u8(dst + 7 * stride, vextq_u8(col0_odd, d1, 13)); + vst1q_u8(dst + 8 * stride, vextq_u8(col0_even, d0, 12)); + vst1q_u8(dst + 9 * stride, vextq_u8(col0_odd, d1, 12)); + vst1q_u8(dst + 10 * stride, vextq_u8(col0_even, d0, 11)); + vst1q_u8(dst + 11 * stride, vextq_u8(col0_odd, d1, 11)); + vst1q_u8(dst + 12 * stride, vextq_u8(col0_even, d0, 10)); + vst1q_u8(dst + 13 * stride, vextq_u8(col0_odd, d1, 10)); + vst1q_u8(dst + 14 * stride, vextq_u8(col0_even, d0, 9)); + vst1q_u8(dst + 15 * stride, vextq_u8(col0_odd, d1, 9)); +} + +void vpx_d117_predictor_32x32_neon(uint8_t *dst, ptrdiff_t stride, + const uint8_t *above, const uint8_t *left) { + // See vpx_d117_predictor_8x8_neon for more details on the implementation. + uint8x16_t az, a0, a14, a15, a16, l0az, d0_lo, d0_hi, d1_lo, d1_hi, l0, l1, + l15, l16, l17, azl0, col0_lo, col0_hi, col0_even, col0_odd; + + az = vld1q_u8(above - 1); + a0 = vld1q_u8(above + 0); + a14 = vld1q_u8(above + 14); + a15 = vld1q_u8(above + 15); + a16 = vld1q_u8(above + 16); + // [ left[0], above[-1], ... , above[13] ] + l0az = vextq_u8(vld1q_dup_u8(left), az, 15); + + l0 = vld1q_u8(left + 0); + l1 = vld1q_u8(left + 1); + l15 = vld1q_u8(left + 15); + l16 = vld1q_u8(left + 16); + // The last lane here is unused, reading left[32] would cause a buffer + // over-read (observed as an address-sanitizer failure), so just fill with a + // duplicate of left[16] to avoid needing to materialize a zero: + // [ left[17], ... , left[31], x ] + l17 = vextq_u8(l16, l16, 1); + // [ above[-1], left[0], ... , left[14] ] + azl0 = vextq_u8(vld1q_dup_u8(above - 1), l0, 15); + + d0_lo = vrhaddq_u8(az, a0); + d0_hi = vrhaddq_u8(a15, a16); + d1_lo = vrhaddq_u8(vhaddq_u8(l0az, a0), az); + d1_hi = vrhaddq_u8(vhaddq_u8(a14, a16), a15); + + // The last lane of col0_hi is unused here. + col0_lo = vrhaddq_u8(vhaddq_u8(azl0, l1), l0); + col0_hi = vrhaddq_u8(vhaddq_u8(l15, l17), l16); + + col0_lo = vrev64q_u8(vextq_u8(col0_lo, col0_lo, 8)); + col0_hi = vrev64q_u8(vextq_u8(col0_hi, col0_hi, 8)); + + // The first lane of these are unused since they are only ever called as + // ext(col0, _, i) where i >= 1. + col0_even = vuzpq_u8(col0_hi, col0_lo).val[1]; + col0_odd = vuzpq_u8(col0_hi, col0_lo).val[0]; + + vst1q_u8(dst + 0 * stride + 0, d0_lo); + vst1q_u8(dst + 0 * stride + 16, d0_hi); + vst1q_u8(dst + 1 * stride + 0, d1_lo); + vst1q_u8(dst + 1 * stride + 16, d1_hi); + vst1q_u8(dst + 2 * stride + 0, vextq_u8(col0_even, d0_lo, 15)); + vst1q_u8(dst + 2 * stride + 16, vextq_u8(d0_lo, d0_hi, 15)); + vst1q_u8(dst + 3 * stride + 0, vextq_u8(col0_odd, d1_lo, 15)); + vst1q_u8(dst + 3 * stride + 16, vextq_u8(d1_lo, d1_hi, 15)); + vst1q_u8(dst + 4 * stride + 0, vextq_u8(col0_even, d0_lo, 14)); + vst1q_u8(dst + 4 * stride + 16, vextq_u8(d0_lo, d0_hi, 14)); + vst1q_u8(dst + 5 * stride + 0, vextq_u8(col0_odd, d1_lo, 14)); + vst1q_u8(dst + 5 * stride + 16, vextq_u8(d1_lo, d1_hi, 14)); + vst1q_u8(dst + 6 * stride + 0, vextq_u8(col0_even, d0_lo, 13)); + vst1q_u8(dst + 6 * stride + 16, vextq_u8(d0_lo, d0_hi, 13)); + vst1q_u8(dst + 7 * stride + 0, vextq_u8(col0_odd, d1_lo, 13)); + vst1q_u8(dst + 7 * stride + 16, vextq_u8(d1_lo, d1_hi, 13)); + vst1q_u8(dst + 8 * stride + 0, vextq_u8(col0_even, d0_lo, 12)); + vst1q_u8(dst + 8 * stride + 16, vextq_u8(d0_lo, d0_hi, 12)); + vst1q_u8(dst + 9 * stride + 0, vextq_u8(col0_odd, d1_lo, 12)); + vst1q_u8(dst + 9 * stride + 16, vextq_u8(d1_lo, d1_hi, 12)); + vst1q_u8(dst + 10 * stride + 0, vextq_u8(col0_even, d0_lo, 11)); + vst1q_u8(dst + 10 * stride + 16, vextq_u8(d0_lo, d0_hi, 11)); + vst1q_u8(dst + 11 * stride + 0, vextq_u8(col0_odd, d1_lo, 11)); + vst1q_u8(dst + 11 * stride + 16, vextq_u8(d1_lo, d1_hi, 11)); + vst1q_u8(dst + 12 * stride + 0, vextq_u8(col0_even, d0_lo, 10)); + vst1q_u8(dst + 12 * stride + 16, vextq_u8(d0_lo, d0_hi, 10)); + vst1q_u8(dst + 13 * stride + 0, vextq_u8(col0_odd, d1_lo, 10)); + vst1q_u8(dst + 13 * stride + 16, vextq_u8(d1_lo, d1_hi, 10)); + vst1q_u8(dst + 14 * stride + 0, vextq_u8(col0_even, d0_lo, 9)); + vst1q_u8(dst + 14 * stride + 16, vextq_u8(d0_lo, d0_hi, 9)); + vst1q_u8(dst + 15 * stride + 0, vextq_u8(col0_odd, d1_lo, 9)); + vst1q_u8(dst + 15 * stride + 16, vextq_u8(d1_lo, d1_hi, 9)); + vst1q_u8(dst + 16 * stride + 0, vextq_u8(col0_even, d0_lo, 8)); + vst1q_u8(dst + 16 * stride + 16, vextq_u8(d0_lo, d0_hi, 8)); + vst1q_u8(dst + 17 * stride + 0, vextq_u8(col0_odd, d1_lo, 8)); + vst1q_u8(dst + 17 * stride + 16, vextq_u8(d1_lo, d1_hi, 8)); + vst1q_u8(dst + 18 * stride + 0, vextq_u8(col0_even, d0_lo, 7)); + vst1q_u8(dst + 18 * stride + 16, vextq_u8(d0_lo, d0_hi, 7)); + vst1q_u8(dst + 19 * stride + 0, vextq_u8(col0_odd, d1_lo, 7)); + vst1q_u8(dst + 19 * stride + 16, vextq_u8(d1_lo, d1_hi, 7)); + vst1q_u8(dst + 20 * stride + 0, vextq_u8(col0_even, d0_lo, 6)); + vst1q_u8(dst + 20 * stride + 16, vextq_u8(d0_lo, d0_hi, 6)); + vst1q_u8(dst + 21 * stride + 0, vextq_u8(col0_odd, d1_lo, 6)); + vst1q_u8(dst + 21 * stride + 16, vextq_u8(d1_lo, d1_hi, 6)); + vst1q_u8(dst + 22 * stride + 0, vextq_u8(col0_even, d0_lo, 5)); + vst1q_u8(dst + 22 * stride + 16, vextq_u8(d0_lo, d0_hi, 5)); + vst1q_u8(dst + 23 * stride + 0, vextq_u8(col0_odd, d1_lo, 5)); + vst1q_u8(dst + 23 * stride + 16, vextq_u8(d1_lo, d1_hi, 5)); + vst1q_u8(dst + 24 * stride + 0, vextq_u8(col0_even, d0_lo, 4)); + vst1q_u8(dst + 24 * stride + 16, vextq_u8(d0_lo, d0_hi, 4)); + vst1q_u8(dst + 25 * stride + 0, vextq_u8(col0_odd, d1_lo, 4)); + vst1q_u8(dst + 25 * stride + 16, vextq_u8(d1_lo, d1_hi, 4)); + vst1q_u8(dst + 26 * stride + 0, vextq_u8(col0_even, d0_lo, 3)); + vst1q_u8(dst + 26 * stride + 16, vextq_u8(d0_lo, d0_hi, 3)); + vst1q_u8(dst + 27 * stride + 0, vextq_u8(col0_odd, d1_lo, 3)); + vst1q_u8(dst + 27 * stride + 16, vextq_u8(d1_lo, d1_hi, 3)); + vst1q_u8(dst + 28 * stride + 0, vextq_u8(col0_even, d0_lo, 2)); + vst1q_u8(dst + 28 * stride + 16, vextq_u8(d0_lo, d0_hi, 2)); + vst1q_u8(dst + 29 * stride + 0, vextq_u8(col0_odd, d1_lo, 2)); + vst1q_u8(dst + 29 * stride + 16, vextq_u8(d1_lo, d1_hi, 2)); + vst1q_u8(dst + 30 * stride + 0, vextq_u8(col0_even, d0_lo, 1)); + vst1q_u8(dst + 30 * stride + 16, vextq_u8(d0_lo, d0_hi, 1)); + vst1q_u8(dst + 31 * stride + 0, vextq_u8(col0_odd, d1_lo, 1)); + vst1q_u8(dst + 31 * stride + 16, vextq_u8(d1_lo, d1_hi, 1)); } // ----------------------------------------------------------------------------- @@ -390,22 +866,14 @@ void vpx_d135_predictor_4x4_neon(uint8_t *dst, ptrdiff_t stride, const uint8x8_t L3210 = vrev64_u8(L0123); const uint8x8_t L3210XA012 = vext_u8(L3210, XA0123, 4); const uint8x8_t L210XA0123 = vext_u8(L3210, XA0123, 5); - const uint8x8_t L10XA0123_ = - vreinterpret_u8_u64(vshr_n_u64(vreinterpret_u64_u8(L210XA0123), 8)); + const uint8x8_t L10XA0123_ = vext_u8(L210XA0123, L210XA0123, 1); const uint8x8_t avg1 = vhadd_u8(L10XA0123_, L3210XA012); const uint8x8_t avg2 = vrhadd_u8(avg1, L210XA0123); - const uint64x1_t avg2_u64 = vreinterpret_u64_u8(avg2); - const uint32x2_t r3 = vreinterpret_u32_u8(avg2); - const uint32x2_t r2 = vreinterpret_u32_u64(vshr_n_u64(avg2_u64, 8)); - const uint32x2_t r1 = vreinterpret_u32_u64(vshr_n_u64(avg2_u64, 16)); - const uint32x2_t r0 = vreinterpret_u32_u64(vshr_n_u64(avg2_u64, 24)); - vst1_lane_u32((uint32_t *)dst, r0, 0); - dst += stride; - vst1_lane_u32((uint32_t *)dst, r1, 0); - dst += stride; - vst1_lane_u32((uint32_t *)dst, r2, 0); - dst += stride; - vst1_lane_u32((uint32_t *)dst, r3, 0); + + store_u8_4x1(dst + 0 * stride, vext_u8(avg2, avg2, 3)); + store_u8_4x1(dst + 1 * stride, vext_u8(avg2, avg2, 2)); + store_u8_4x1(dst + 2 * stride, vext_u8(avg2, avg2, 1)); + store_u8_4x1(dst + 3 * stride, avg2); } void vpx_d135_predictor_8x8_neon(uint8_t *dst, ptrdiff_t stride, @@ -422,31 +890,15 @@ void vpx_d135_predictor_8x8_neon(uint8_t *dst, ptrdiff_t stride, const uint8x16_t L543210XA01234567_ = vcombine_u8(L543210XA0, A1234567_); const uint8x16_t avg = vhaddq_u8(L76543210XA0123456, L543210XA01234567_); const uint8x16_t row = vrhaddq_u8(avg, L6543210XA01234567); - const uint8x8_t row_0 = vget_low_u8(row); - const uint8x8_t row_1 = vget_high_u8(row); - const uint8x8_t r0 = vext_u8(row_0, row_1, 7); - const uint8x8_t r1 = vext_u8(row_0, row_1, 6); - const uint8x8_t r2 = vext_u8(row_0, row_1, 5); - const uint8x8_t r3 = vext_u8(row_0, row_1, 4); - const uint8x8_t r4 = vext_u8(row_0, row_1, 3); - const uint8x8_t r5 = vext_u8(row_0, row_1, 2); - const uint8x8_t r6 = vext_u8(row_0, row_1, 1); - - vst1_u8(dst, r0); - dst += stride; - vst1_u8(dst, r1); - dst += stride; - vst1_u8(dst, r2); - dst += stride; - vst1_u8(dst, r3); - dst += stride; - vst1_u8(dst, r4); - dst += stride; - vst1_u8(dst, r5); - dst += stride; - vst1_u8(dst, r6); - dst += stride; - vst1_u8(dst, row_0); + + vst1_u8(dst + 0 * stride, vget_low_u8(vextq_u8(row, row, 7))); + vst1_u8(dst + 1 * stride, vget_low_u8(vextq_u8(row, row, 6))); + vst1_u8(dst + 2 * stride, vget_low_u8(vextq_u8(row, row, 5))); + vst1_u8(dst + 3 * stride, vget_low_u8(vextq_u8(row, row, 4))); + vst1_u8(dst + 4 * stride, vget_low_u8(vextq_u8(row, row, 3))); + vst1_u8(dst + 5 * stride, vget_low_u8(vextq_u8(row, row, 2))); + vst1_u8(dst + 6 * stride, vget_low_u8(vextq_u8(row, row, 1))); + vst1_u8(dst + 7 * stride, vget_low_u8(row)); } static INLINE void d135_store_16x8( @@ -489,6 +941,7 @@ void vpx_d135_predictor_16x16_neon(uint8_t *dst, ptrdiff_t stride, const uint8x16_t avg_1 = vhaddq_u8(XA0123456789abcde, A123456789abcdef_); const uint8x16_t row_0 = vrhaddq_u8(avg_0, Ledcba9876543210X); const uint8x16_t row_1 = vrhaddq_u8(avg_1, A0123456789abcdef); + const uint8x16_t r_0 = vextq_u8(row_0, row_1, 15); const uint8x16_t r_1 = vextq_u8(row_0, row_1, 14); const uint8x16_t r_2 = vextq_u8(row_0, row_1, 13); @@ -496,7 +949,7 @@ void vpx_d135_predictor_16x16_neon(uint8_t *dst, ptrdiff_t stride, const uint8x16_t r_4 = vextq_u8(row_0, row_1, 11); const uint8x16_t r_5 = vextq_u8(row_0, row_1, 10); const uint8x16_t r_6 = vextq_u8(row_0, row_1, 9); - const uint8x16_t r_7 = vcombine_u8(vget_high_u8(row_0), vget_low_u8(row_1)); + const uint8x16_t r_7 = vextq_u8(row_0, row_1, 8); const uint8x16_t r_8 = vextq_u8(row_0, row_1, 7); const uint8x16_t r_9 = vextq_u8(row_0, row_1, 6); const uint8x16_t r_a = vextq_u8(row_0, row_1, 5); @@ -667,6 +1120,454 @@ void vpx_d135_predictor_32x32_neon(uint8_t *dst, ptrdiff_t stride, d135_store_32x2(&dst, stride, row_0, row_1, row_2); } +// ----------------------------------------------------------------------------- + +void vpx_d153_predictor_4x4_neon(uint8_t *dst, ptrdiff_t stride, + const uint8_t *above, const uint8_t *left) { + // See vpx_d153_predictor_8x8_neon for more details on the implementation. + uint8x8_t az, a0, l0az, l0, l1, azl0, d0, d1, d2, d02; + + az = load_unaligned_u8_4x1(above - 1); + a0 = load_unaligned_u8_4x1(above + 0); + // [ left[0], above[-1], above[0], above[1], x, x, x, x ] + l0az = vext_u8(vld1_dup_u8(left), az, 7); + + l0 = load_unaligned_u8_4x1(left + 0); + l1 = load_unaligned_u8_4x1(left + 1); + // [ above[-1], left[0], left[1], left[2], x, x, x, x ] + azl0 = vext_u8(vld1_dup_u8(above - 1), l0, 7); + + d0 = vrhadd_u8(azl0, l0); + d1 = vrhadd_u8(vhadd_u8(l0az, a0), az); + d2 = vrhadd_u8(vhadd_u8(azl0, l1), l0); + + d02 = vrev64_u8(vzip_u8(d0, d2).val[0]); + + store_u8_4x1(dst + 0 * stride, vext_u8(d02, d1, 7)); + store_u8_4x1(dst + 1 * stride, vext_u8(d02, d1, 5)); + store_u8_4x1(dst + 2 * stride, vext_u8(d02, d1, 3)); + store_u8_4x1(dst + 3 * stride, vext_u8(d02, d1, 1)); +} + +void vpx_d153_predictor_8x8_neon(uint8_t *dst, ptrdiff_t stride, + const uint8_t *above, const uint8_t *left) { + uint8x8_t az, a0, l0az, l0, l1, azl0, d0, d1, d2, d02_lo, d02_hi; + + az = vld1_u8(above - 1); + a0 = vld1_u8(above + 0); + // [ left[0], above[-1], ... , above[5] ] + l0az = vext_u8(vld1_dup_u8(left), az, 7); + + l0 = vld1_u8(left); + // The last lane here is unused, reading left[8] could cause a buffer + // over-read, so just fill with a duplicate of left[0] to avoid needing to + // materialize a zero: + // [ left[1], ... , left[7], x ] + l1 = vext_u8(l0, l0, 1); + // [ above[-1], left[0], ... , left[6] ] + azl0 = vext_u8(vld1_dup_u8(above - 1), l0, 7); + + // d0[0] = AVG2(above[-1], left[0]) + // d0[1] = AVG2(left[0], left[1]) + // ... + // d0[7] = AVG2(left[6], left[7]) + d0 = vrhadd_u8(azl0, l0); + + // d1[0] = AVG3(left[0], above[-1], above[0]) + // d1[1] = AVG3(above[-1], above[0], above[1]) + // ... + // d1[7] = AVG3(above[5], above[6], above[7]) + d1 = vrhadd_u8(vhadd_u8(l0az, a0), az); + + // d2[0] = AVG3(above[-1], left[0], left[1]) + // d2[1] = AVG3(left[0], left[1], left[2]) + // ... + // d2[6] = AVG3(left[5], left[6], left[7]) + // d2[7] = x (don't care) + d2 = vrhadd_u8(vhadd_u8(azl0, l1), l0); + + // The ext instruction shifts elements in from the end of the vector rather + // than the start, so reverse the vectors to put the elements to be shifted + // in at the end. The lowest lane of d02_lo is unused. + d02_lo = vzip_u8(vrev64_u8(d2), vrev64_u8(d0)).val[0]; + d02_hi = vzip_u8(vrev64_u8(d2), vrev64_u8(d0)).val[1]; + + // Incrementally shift more elements from d0/d2 reversed into d1: + // stride=0 [ d0[0], d1[0], d1[1], d1[2], d1[3], d1[4], d1[5], d1[6] ] + // stride=1 [ d0[1], d2[0], d0[0], d1[0], d1[1], d1[2], d1[3], d1[4] ] + // stride=2 [ d0[2], d2[1], d0[1], d2[0], d0[0], d1[0], d1[1], d1[2] ] + // stride=3 [ d0[3], d2[2], d0[2], d2[1], d0[1], d2[0], d0[0], d1[0] ] + // stride=4 [ d0[4], d2[3], d0[3], d2[2], d0[2], d2[1], d0[1], d2[0] ] + // stride=5 [ d0[5], d2[4], d0[4], d2[3], d0[3], d2[2], d0[2], d2[1] ] + // stride=6 [ d0[6], d2[5], d0[5], d2[4], d0[4], d2[3], d0[3], d2[2] ] + // stride=7 [ d0[7], d2[6], d0[6], d2[5], d0[5], d2[4], d0[4], d2[3] ] + vst1_u8(dst + 0 * stride, vext_u8(d02_hi, d1, 7)); + vst1_u8(dst + 1 * stride, vext_u8(d02_hi, d1, 5)); + vst1_u8(dst + 2 * stride, vext_u8(d02_hi, d1, 3)); + vst1_u8(dst + 3 * stride, vext_u8(d02_hi, d1, 1)); + vst1_u8(dst + 4 * stride, vext_u8(d02_lo, d02_hi, 7)); + vst1_u8(dst + 5 * stride, vext_u8(d02_lo, d02_hi, 5)); + vst1_u8(dst + 6 * stride, vext_u8(d02_lo, d02_hi, 3)); + vst1_u8(dst + 7 * stride, vext_u8(d02_lo, d02_hi, 1)); +} + +void vpx_d153_predictor_16x16_neon(uint8_t *dst, ptrdiff_t stride, + const uint8_t *above, const uint8_t *left) { + // See vpx_d153_predictor_8x8_neon for more details on the implementation. + uint8x16_t az, a0, l0az, l0, l1, azl0, d0, d1, d2, d02_lo, d02_hi; + + az = vld1q_u8(above - 1); + a0 = vld1q_u8(above + 0); + // [ left[0], above[-1], ... , above[13] ] + l0az = vextq_u8(vld1q_dup_u8(left), az, 15); + + l0 = vld1q_u8(left + 0); + // The last lane here is unused, reading left[16] could cause a buffer + // over-read, so just fill with a duplicate of left[0] to avoid needing to + // materialize a zero: + // [ left[1], ... , left[15], x ] + l1 = vextq_u8(l0, l0, 1); + // [ above[-1], left[0], ... , left[14] ] + azl0 = vextq_u8(vld1q_dup_u8(above - 1), l0, 15); + + d0 = vrhaddq_u8(azl0, l0); + d1 = vrhaddq_u8(vhaddq_u8(l0az, a0), az); + d2 = vrhaddq_u8(vhaddq_u8(azl0, l1), l0); + + d0 = vrev64q_u8(vextq_u8(d0, d0, 8)); + d2 = vrev64q_u8(vextq_u8(d2, d2, 8)); + + // The lowest lane of d02_lo is unused. + d02_lo = vzipq_u8(d2, d0).val[0]; + d02_hi = vzipq_u8(d2, d0).val[1]; + + vst1q_u8(dst + 0 * stride, vextq_u8(d02_hi, d1, 15)); + vst1q_u8(dst + 1 * stride, vextq_u8(d02_hi, d1, 13)); + vst1q_u8(dst + 2 * stride, vextq_u8(d02_hi, d1, 11)); + vst1q_u8(dst + 3 * stride, vextq_u8(d02_hi, d1, 9)); + vst1q_u8(dst + 4 * stride, vextq_u8(d02_hi, d1, 7)); + vst1q_u8(dst + 5 * stride, vextq_u8(d02_hi, d1, 5)); + vst1q_u8(dst + 6 * stride, vextq_u8(d02_hi, d1, 3)); + vst1q_u8(dst + 7 * stride, vextq_u8(d02_hi, d1, 1)); + vst1q_u8(dst + 8 * stride, vextq_u8(d02_lo, d02_hi, 15)); + vst1q_u8(dst + 9 * stride, vextq_u8(d02_lo, d02_hi, 13)); + vst1q_u8(dst + 10 * stride, vextq_u8(d02_lo, d02_hi, 11)); + vst1q_u8(dst + 11 * stride, vextq_u8(d02_lo, d02_hi, 9)); + vst1q_u8(dst + 12 * stride, vextq_u8(d02_lo, d02_hi, 7)); + vst1q_u8(dst + 13 * stride, vextq_u8(d02_lo, d02_hi, 5)); + vst1q_u8(dst + 14 * stride, vextq_u8(d02_lo, d02_hi, 3)); + vst1q_u8(dst + 15 * stride, vextq_u8(d02_lo, d02_hi, 1)); +} + +void vpx_d153_predictor_32x32_neon(uint8_t *dst, ptrdiff_t stride, + const uint8_t *above, const uint8_t *left) { + // See vpx_d153_predictor_8x8_neon for more details on the implementation. + uint8x16_t az, a0, a14, a15, a16, l0az, l0, l1, l15, l16, l17, azl0, d0_lo, + d0_hi, d1_lo, d1_hi, d2_lo, d2_hi; + uint8x16x2_t d02_hi, d02_lo; + + az = vld1q_u8(above - 1); + a0 = vld1q_u8(above + 0); + a14 = vld1q_u8(above + 14); + a15 = vld1q_u8(above + 15); + a16 = vld1q_u8(above + 16); + // [ left[0], above[-1], ... , above[13] ] + l0az = vextq_u8(vld1q_dup_u8(left), az, 15); + + l0 = vld1q_u8(left); + l1 = vld1q_u8(left + 1); + l15 = vld1q_u8(left + 15); + l16 = vld1q_u8(left + 16); + // The last lane here is unused, reading left[32] would cause a buffer + // over-read (observed as an address-sanitizer failure), so just fill with a + // duplicate of left[16] to avoid needing to materialize a zero: + // [ left[17], ... , left[31], x ] + l17 = vextq_u8(l16, l16, 1); + // [ above[-1], left[0], ... , left[14] ] + azl0 = vextq_u8(vld1q_dup_u8(above - 1), l0, 15); + + d0_lo = vrhaddq_u8(azl0, l0); + d0_hi = vrhaddq_u8(l15, l16); + + d1_lo = vrhaddq_u8(vhaddq_u8(l0az, a0), az); + d1_hi = vrhaddq_u8(vhaddq_u8(a14, a16), a15); + + // The highest lane of d2_hi is unused. + d2_lo = vrhaddq_u8(vhaddq_u8(azl0, l1), l0); + d2_hi = vrhaddq_u8(vhaddq_u8(l15, l17), l16); + + d0_lo = vrev64q_u8(vextq_u8(d0_lo, d0_lo, 8)); + d0_hi = vrev64q_u8(vextq_u8(d0_hi, d0_hi, 8)); + + d2_lo = vrev64q_u8(vextq_u8(d2_lo, d2_lo, 8)); + d2_hi = vrev64q_u8(vextq_u8(d2_hi, d2_hi, 8)); + + // d02_hi.val[0][0] is unused here. + d02_hi = vzipq_u8(d2_hi, d0_hi); + d02_lo = vzipq_u8(d2_lo, d0_lo); + + vst1q_u8(dst + 0 * stride + 0, vextq_u8(d02_lo.val[1], d1_lo, 15)); + vst1q_u8(dst + 0 * stride + 16, vextq_u8(d1_lo, d1_hi, 15)); + vst1q_u8(dst + 1 * stride + 0, vextq_u8(d02_lo.val[1], d1_lo, 13)); + vst1q_u8(dst + 1 * stride + 16, vextq_u8(d1_lo, d1_hi, 13)); + vst1q_u8(dst + 2 * stride + 0, vextq_u8(d02_lo.val[1], d1_lo, 11)); + vst1q_u8(dst + 2 * stride + 16, vextq_u8(d1_lo, d1_hi, 11)); + vst1q_u8(dst + 3 * stride + 0, vextq_u8(d02_lo.val[1], d1_lo, 9)); + vst1q_u8(dst + 3 * stride + 16, vextq_u8(d1_lo, d1_hi, 9)); + vst1q_u8(dst + 4 * stride + 0, vextq_u8(d02_lo.val[1], d1_lo, 7)); + vst1q_u8(dst + 4 * stride + 16, vextq_u8(d1_lo, d1_hi, 7)); + vst1q_u8(dst + 5 * stride + 0, vextq_u8(d02_lo.val[1], d1_lo, 5)); + vst1q_u8(dst + 5 * stride + 16, vextq_u8(d1_lo, d1_hi, 5)); + vst1q_u8(dst + 6 * stride + 0, vextq_u8(d02_lo.val[1], d1_lo, 3)); + vst1q_u8(dst + 6 * stride + 16, vextq_u8(d1_lo, d1_hi, 3)); + vst1q_u8(dst + 7 * stride + 0, vextq_u8(d02_lo.val[1], d1_lo, 1)); + vst1q_u8(dst + 7 * stride + 16, vextq_u8(d1_lo, d1_hi, 1)); + vst1q_u8(dst + 8 * stride + 0, vextq_u8(d02_lo.val[0], d02_lo.val[1], 15)); + vst1q_u8(dst + 8 * stride + 16, vextq_u8(d02_lo.val[1], d1_lo, 15)); + vst1q_u8(dst + 9 * stride + 0, vextq_u8(d02_lo.val[0], d02_lo.val[1], 13)); + vst1q_u8(dst + 9 * stride + 16, vextq_u8(d02_lo.val[1], d1_lo, 13)); + vst1q_u8(dst + 10 * stride + 0, vextq_u8(d02_lo.val[0], d02_lo.val[1], 11)); + vst1q_u8(dst + 10 * stride + 16, vextq_u8(d02_lo.val[1], d1_lo, 11)); + vst1q_u8(dst + 11 * stride + 0, vextq_u8(d02_lo.val[0], d02_lo.val[1], 9)); + vst1q_u8(dst + 11 * stride + 16, vextq_u8(d02_lo.val[1], d1_lo, 9)); + vst1q_u8(dst + 12 * stride + 0, vextq_u8(d02_lo.val[0], d02_lo.val[1], 7)); + vst1q_u8(dst + 12 * stride + 16, vextq_u8(d02_lo.val[1], d1_lo, 7)); + vst1q_u8(dst + 13 * stride + 0, vextq_u8(d02_lo.val[0], d02_lo.val[1], 5)); + vst1q_u8(dst + 13 * stride + 16, vextq_u8(d02_lo.val[1], d1_lo, 5)); + vst1q_u8(dst + 14 * stride + 0, vextq_u8(d02_lo.val[0], d02_lo.val[1], 3)); + vst1q_u8(dst + 14 * stride + 16, vextq_u8(d02_lo.val[1], d1_lo, 3)); + vst1q_u8(dst + 15 * stride + 0, vextq_u8(d02_lo.val[0], d02_lo.val[1], 1)); + vst1q_u8(dst + 15 * stride + 16, vextq_u8(d02_lo.val[1], d1_lo, 1)); + vst1q_u8(dst + 16 * stride + 0, vextq_u8(d02_hi.val[1], d02_lo.val[0], 15)); + vst1q_u8(dst + 16 * stride + 16, vextq_u8(d02_lo.val[0], d02_lo.val[1], 15)); + vst1q_u8(dst + 17 * stride + 0, vextq_u8(d02_hi.val[1], d02_lo.val[0], 13)); + vst1q_u8(dst + 17 * stride + 16, vextq_u8(d02_lo.val[0], d02_lo.val[1], 13)); + vst1q_u8(dst + 18 * stride + 0, vextq_u8(d02_hi.val[1], d02_lo.val[0], 11)); + vst1q_u8(dst + 18 * stride + 16, vextq_u8(d02_lo.val[0], d02_lo.val[1], 11)); + vst1q_u8(dst + 19 * stride + 0, vextq_u8(d02_hi.val[1], d02_lo.val[0], 9)); + vst1q_u8(dst + 19 * stride + 16, vextq_u8(d02_lo.val[0], d02_lo.val[1], 9)); + vst1q_u8(dst + 20 * stride + 0, vextq_u8(d02_hi.val[1], d02_lo.val[0], 7)); + vst1q_u8(dst + 20 * stride + 16, vextq_u8(d02_lo.val[0], d02_lo.val[1], 7)); + vst1q_u8(dst + 21 * stride + 0, vextq_u8(d02_hi.val[1], d02_lo.val[0], 5)); + vst1q_u8(dst + 21 * stride + 16, vextq_u8(d02_lo.val[0], d02_lo.val[1], 5)); + vst1q_u8(dst + 22 * stride + 0, vextq_u8(d02_hi.val[1], d02_lo.val[0], 3)); + vst1q_u8(dst + 22 * stride + 16, vextq_u8(d02_lo.val[0], d02_lo.val[1], 3)); + vst1q_u8(dst + 23 * stride + 0, vextq_u8(d02_hi.val[1], d02_lo.val[0], 1)); + vst1q_u8(dst + 23 * stride + 16, vextq_u8(d02_lo.val[0], d02_lo.val[1], 1)); + vst1q_u8(dst + 24 * stride + 0, vextq_u8(d02_hi.val[0], d02_hi.val[1], 15)); + vst1q_u8(dst + 24 * stride + 16, vextq_u8(d02_hi.val[1], d02_lo.val[0], 15)); + vst1q_u8(dst + 25 * stride + 0, vextq_u8(d02_hi.val[0], d02_hi.val[1], 13)); + vst1q_u8(dst + 25 * stride + 16, vextq_u8(d02_hi.val[1], d02_lo.val[0], 13)); + vst1q_u8(dst + 26 * stride + 0, vextq_u8(d02_hi.val[0], d02_hi.val[1], 11)); + vst1q_u8(dst + 26 * stride + 16, vextq_u8(d02_hi.val[1], d02_lo.val[0], 11)); + vst1q_u8(dst + 27 * stride + 0, vextq_u8(d02_hi.val[0], d02_hi.val[1], 9)); + vst1q_u8(dst + 27 * stride + 16, vextq_u8(d02_hi.val[1], d02_lo.val[0], 9)); + vst1q_u8(dst + 28 * stride + 0, vextq_u8(d02_hi.val[0], d02_hi.val[1], 7)); + vst1q_u8(dst + 28 * stride + 16, vextq_u8(d02_hi.val[1], d02_lo.val[0], 7)); + vst1q_u8(dst + 29 * stride + 0, vextq_u8(d02_hi.val[0], d02_hi.val[1], 5)); + vst1q_u8(dst + 29 * stride + 16, vextq_u8(d02_hi.val[1], d02_lo.val[0], 5)); + vst1q_u8(dst + 30 * stride + 0, vextq_u8(d02_hi.val[0], d02_hi.val[1], 3)); + vst1q_u8(dst + 30 * stride + 16, vextq_u8(d02_hi.val[1], d02_lo.val[0], 3)); + vst1q_u8(dst + 31 * stride + 0, vextq_u8(d02_hi.val[0], d02_hi.val[1], 1)); + vst1q_u8(dst + 31 * stride + 16, vextq_u8(d02_hi.val[1], d02_lo.val[0], 1)); +} + +// ----------------------------------------------------------------------------- + +void vpx_d207_predictor_4x4_neon(uint8_t *dst, ptrdiff_t stride, + const uint8_t *above, const uint8_t *left) { + uint8x8_t l0, l3, l1, l2, c0, c1, c01, d0, d1; + (void)above; + + // We need the low half lanes here for the c0/c1 arithmetic but the high half + // lanes for the ext: + // [ left[0], left[1], left[2], left[3], left[0], left[1], left[2], left[3] ] + l0 = load_replicate_u8_4x1(left + 0); + l3 = vld1_dup_u8(left + 3); + + // [ left[1], left[2], left[3], left[3], x, x, x, x ] + l1 = vext_u8(l0, l3, 5); + // [ left[2], left[3], left[3], left[3], x, x, x, x ] + l2 = vext_u8(l0, l3, 6); + + c0 = vrhadd_u8(l0, l1); + c1 = vrhadd_u8(vhadd_u8(l0, l2), l1); + + // [ c0[0], c1[0], c0[1], c1[1], c0[2], c1[2], c0[3], c1[3] ] + c01 = vzip_u8(c0, c1).val[0]; + + d0 = c01; + d1 = vext_u8(c01, l3, 2); + + // Store the high half of the vector for stride={2,3} to avoid needing + // additional ext instructions: + // stride=0 [ c0[0], c1[0], c0[1], c1[1] ] + // stride=1 [ c0[1], c1[1], c0[2], c1[2] ] + // stride=2 [ c0[2], c1[2], c0[3], c1[3] ] + // stride=3 [ c0[3], c1[3], left[3], left[3] ] + store_u8_4x1(dst + 0 * stride, d0); + store_u8_4x1(dst + 1 * stride, d1); + store_u8_4x1_high(dst + 2 * stride, d0); + store_u8_4x1_high(dst + 3 * stride, d1); +} + +void vpx_d207_predictor_8x8_neon(uint8_t *dst, ptrdiff_t stride, + const uint8_t *above, const uint8_t *left) { + uint8x8_t l7, l0, l1, l2, c0, c1, c01_lo, c01_hi; + (void)above; + + l0 = vld1_u8(left + 0); + l7 = vld1_dup_u8(left + 7); + + // [ left[1], left[2], left[3], left[4], left[5], left[6], left[7], left[7] ] + l1 = vext_u8(l0, l7, 1); + // [ left[2], left[3], left[4], left[5], left[6], left[7], left[7], left[7] ] + l2 = vext_u8(l0, l7, 2); + + c0 = vrhadd_u8(l0, l1); + c1 = vrhadd_u8(vhadd_u8(l0, l2), l1); + + c01_lo = vzip_u8(c0, c1).val[0]; + c01_hi = vzip_u8(c0, c1).val[1]; + + vst1_u8(dst + 0 * stride, c01_lo); + vst1_u8(dst + 1 * stride, vext_u8(c01_lo, c01_hi, 2)); + vst1_u8(dst + 2 * stride, vext_u8(c01_lo, c01_hi, 4)); + vst1_u8(dst + 3 * stride, vext_u8(c01_lo, c01_hi, 6)); + vst1_u8(dst + 4 * stride, c01_hi); + vst1_u8(dst + 5 * stride, vext_u8(c01_hi, l7, 2)); + vst1_u8(dst + 6 * stride, vext_u8(c01_hi, l7, 4)); + vst1_u8(dst + 7 * stride, vext_u8(c01_hi, l7, 6)); +} + +void vpx_d207_predictor_16x16_neon(uint8_t *dst, ptrdiff_t stride, + const uint8_t *above, const uint8_t *left) { + uint8x16_t l15, l0, l1, l2, c0, c1, c01_lo, c01_hi; + (void)above; + + l0 = vld1q_u8(left + 0); + l15 = vld1q_dup_u8(left + 15); + + l1 = vextq_u8(l0, l15, 1); + l2 = vextq_u8(l0, l15, 2); + + c0 = vrhaddq_u8(l0, l1); + c1 = vrhaddq_u8(vhaddq_u8(l0, l2), l1); + + c01_lo = vzipq_u8(c0, c1).val[0]; + c01_hi = vzipq_u8(c0, c1).val[1]; + + vst1q_u8(dst + 0 * stride, c01_lo); + vst1q_u8(dst + 1 * stride, vextq_u8(c01_lo, c01_hi, 2)); + vst1q_u8(dst + 2 * stride, vextq_u8(c01_lo, c01_hi, 4)); + vst1q_u8(dst + 3 * stride, vextq_u8(c01_lo, c01_hi, 6)); + vst1q_u8(dst + 4 * stride, vextq_u8(c01_lo, c01_hi, 8)); + vst1q_u8(dst + 5 * stride, vextq_u8(c01_lo, c01_hi, 10)); + vst1q_u8(dst + 6 * stride, vextq_u8(c01_lo, c01_hi, 12)); + vst1q_u8(dst + 7 * stride, vextq_u8(c01_lo, c01_hi, 14)); + vst1q_u8(dst + 8 * stride, c01_hi); + vst1q_u8(dst + 9 * stride, vextq_u8(c01_hi, l15, 2)); + vst1q_u8(dst + 10 * stride, vextq_u8(c01_hi, l15, 4)); + vst1q_u8(dst + 11 * stride, vextq_u8(c01_hi, l15, 6)); + vst1q_u8(dst + 12 * stride, vextq_u8(c01_hi, l15, 8)); + vst1q_u8(dst + 13 * stride, vextq_u8(c01_hi, l15, 10)); + vst1q_u8(dst + 14 * stride, vextq_u8(c01_hi, l15, 12)); + vst1q_u8(dst + 15 * stride, vextq_u8(c01_hi, l15, 14)); +} + +void vpx_d207_predictor_32x32_neon(uint8_t *dst, ptrdiff_t stride, + const uint8_t *above, const uint8_t *left) { + uint8x16_t l0_lo, l0_hi, l1_lo, l1_hi, l2_lo, l2_hi, l31, c0_lo, c0_hi, c1_lo, + c1_hi, c01[4]; + (void)above; + + l0_lo = vld1q_u8(left + 0); + l0_hi = vld1q_u8(left + 16); + l31 = vld1q_dup_u8(left + 31); + + l1_lo = vextq_u8(l0_lo, l0_hi, 1); + l1_hi = vextq_u8(l0_hi, l31, 1); + l2_lo = vextq_u8(l0_lo, l0_hi, 2); + l2_hi = vextq_u8(l0_hi, l31, 2); + + c0_lo = vrhaddq_u8(l0_lo, l1_lo); + c0_hi = vrhaddq_u8(l0_hi, l1_hi); + c1_lo = vrhaddq_u8(vhaddq_u8(l0_lo, l2_lo), l1_lo); + c1_hi = vrhaddq_u8(vhaddq_u8(l0_hi, l2_hi), l1_hi); + + c01[0] = vzipq_u8(c0_lo, c1_lo).val[0]; + c01[1] = vzipq_u8(c0_lo, c1_lo).val[1]; + c01[2] = vzipq_u8(c0_hi, c1_hi).val[0]; + c01[3] = vzipq_u8(c0_hi, c1_hi).val[1]; + + vst1q_u8(dst + 0 * stride + 0, c01[0]); + vst1q_u8(dst + 0 * stride + 16, c01[1]); + vst1q_u8(dst + 1 * stride + 0, vextq_u8(c01[0], c01[1], 2)); + vst1q_u8(dst + 1 * stride + 16, vextq_u8(c01[1], c01[2], 2)); + vst1q_u8(dst + 2 * stride + 0, vextq_u8(c01[0], c01[1], 4)); + vst1q_u8(dst + 2 * stride + 16, vextq_u8(c01[1], c01[2], 4)); + vst1q_u8(dst + 3 * stride + 0, vextq_u8(c01[0], c01[1], 6)); + vst1q_u8(dst + 3 * stride + 16, vextq_u8(c01[1], c01[2], 6)); + vst1q_u8(dst + 4 * stride + 0, vextq_u8(c01[0], c01[1], 8)); + vst1q_u8(dst + 4 * stride + 16, vextq_u8(c01[1], c01[2], 8)); + vst1q_u8(dst + 5 * stride + 0, vextq_u8(c01[0], c01[1], 10)); + vst1q_u8(dst + 5 * stride + 16, vextq_u8(c01[1], c01[2], 10)); + vst1q_u8(dst + 6 * stride + 0, vextq_u8(c01[0], c01[1], 12)); + vst1q_u8(dst + 6 * stride + 16, vextq_u8(c01[1], c01[2], 12)); + vst1q_u8(dst + 7 * stride + 0, vextq_u8(c01[0], c01[1], 14)); + vst1q_u8(dst + 7 * stride + 16, vextq_u8(c01[1], c01[2], 14)); + vst1q_u8(dst + 8 * stride + 0, c01[1]); + vst1q_u8(dst + 8 * stride + 16, c01[2]); + vst1q_u8(dst + 9 * stride + 0, vextq_u8(c01[1], c01[2], 2)); + vst1q_u8(dst + 9 * stride + 16, vextq_u8(c01[2], c01[3], 2)); + vst1q_u8(dst + 10 * stride + 0, vextq_u8(c01[1], c01[2], 4)); + vst1q_u8(dst + 10 * stride + 16, vextq_u8(c01[2], c01[3], 4)); + vst1q_u8(dst + 11 * stride + 0, vextq_u8(c01[1], c01[2], 6)); + vst1q_u8(dst + 11 * stride + 16, vextq_u8(c01[2], c01[3], 6)); + vst1q_u8(dst + 12 * stride + 0, vextq_u8(c01[1], c01[2], 8)); + vst1q_u8(dst + 12 * stride + 16, vextq_u8(c01[2], c01[3], 8)); + vst1q_u8(dst + 13 * stride + 0, vextq_u8(c01[1], c01[2], 10)); + vst1q_u8(dst + 13 * stride + 16, vextq_u8(c01[2], c01[3], 10)); + vst1q_u8(dst + 14 * stride + 0, vextq_u8(c01[1], c01[2], 12)); + vst1q_u8(dst + 14 * stride + 16, vextq_u8(c01[2], c01[3], 12)); + vst1q_u8(dst + 15 * stride + 0, vextq_u8(c01[1], c01[2], 14)); + vst1q_u8(dst + 15 * stride + 16, vextq_u8(c01[2], c01[3], 14)); + vst1q_u8(dst + 16 * stride + 0, c01[2]); + vst1q_u8(dst + 16 * stride + 16, c01[3]); + vst1q_u8(dst + 17 * stride + 0, vextq_u8(c01[2], c01[3], 2)); + vst1q_u8(dst + 17 * stride + 16, vextq_u8(c01[3], l31, 2)); + vst1q_u8(dst + 18 * stride + 0, vextq_u8(c01[2], c01[3], 4)); + vst1q_u8(dst + 18 * stride + 16, vextq_u8(c01[3], l31, 4)); + vst1q_u8(dst + 19 * stride + 0, vextq_u8(c01[2], c01[3], 6)); + vst1q_u8(dst + 19 * stride + 16, vextq_u8(c01[3], l31, 6)); + vst1q_u8(dst + 20 * stride + 0, vextq_u8(c01[2], c01[3], 8)); + vst1q_u8(dst + 20 * stride + 16, vextq_u8(c01[3], l31, 8)); + vst1q_u8(dst + 21 * stride + 0, vextq_u8(c01[2], c01[3], 10)); + vst1q_u8(dst + 21 * stride + 16, vextq_u8(c01[3], l31, 10)); + vst1q_u8(dst + 22 * stride + 0, vextq_u8(c01[2], c01[3], 12)); + vst1q_u8(dst + 22 * stride + 16, vextq_u8(c01[3], l31, 12)); + vst1q_u8(dst + 23 * stride + 0, vextq_u8(c01[2], c01[3], 14)); + vst1q_u8(dst + 23 * stride + 16, vextq_u8(c01[3], l31, 14)); + vst1q_u8(dst + 24 * stride + 0, c01[3]); + vst1q_u8(dst + 24 * stride + 16, l31); + vst1q_u8(dst + 25 * stride + 0, vextq_u8(c01[3], l31, 2)); + vst1q_u8(dst + 25 * stride + 16, l31); + vst1q_u8(dst + 26 * stride + 0, vextq_u8(c01[3], l31, 4)); + vst1q_u8(dst + 26 * stride + 16, l31); + vst1q_u8(dst + 27 * stride + 0, vextq_u8(c01[3], l31, 6)); + vst1q_u8(dst + 27 * stride + 16, l31); + vst1q_u8(dst + 28 * stride + 0, vextq_u8(c01[3], l31, 8)); + vst1q_u8(dst + 28 * stride + 16, l31); + vst1q_u8(dst + 29 * stride + 0, vextq_u8(c01[3], l31, 10)); + vst1q_u8(dst + 29 * stride + 16, l31); + vst1q_u8(dst + 30 * stride + 0, vextq_u8(c01[3], l31, 12)); + vst1q_u8(dst + 30 * stride + 16, l31); + vst1q_u8(dst + 31 * stride + 0, vextq_u8(c01[3], l31, 14)); + vst1q_u8(dst + 31 * stride + 16, l31); +} + +// ----------------------------------------------------------------------------- + #if !HAVE_NEON_ASM void vpx_v_predictor_4x4_neon(uint8_t *dst, ptrdiff_t stride, |