ref: cd82f6982316e40c8d24ab9d60a90e9a1928f197
dir: /vpx_dsp/arm/intrapred_neon.c/
/*
* Copyright (c) 2014 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include <arm_neon.h>
#include "./vpx_config.h"
#include "./vpx_dsp_rtcd.h"
#include "vpx/vpx_integer.h"
//------------------------------------------------------------------------------
// DC 4x4
// 'do_above' and 'do_left' facilitate branch removal when inlined.
static INLINE void dc_4x4(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left,
int do_above, int do_left) {
uint16x8_t sum_top;
uint16x8_t sum_left;
uint8x8_t dc0;
if (do_above) {
const uint8x8_t A = vld1_u8(above); // top row
const uint16x4_t p0 = vpaddl_u8(A); // cascading summation of the top
const uint16x4_t p1 = vpadd_u16(p0, p0);
sum_top = vcombine_u16(p1, p1);
}
if (do_left) {
const uint8x8_t L = vld1_u8(left); // left border
const uint16x4_t p0 = vpaddl_u8(L); // cascading summation of the left
const uint16x4_t p1 = vpadd_u16(p0, p0);
sum_left = vcombine_u16(p1, p1);
}
if (do_above && do_left) {
const uint16x8_t sum = vaddq_u16(sum_left, sum_top);
dc0 = vrshrn_n_u16(sum, 3);
} else if (do_above) {
dc0 = vrshrn_n_u16(sum_top, 2);
} else if (do_left) {
dc0 = vrshrn_n_u16(sum_left, 2);
} else {
dc0 = vdup_n_u8(0x80);
}
{
const uint8x8_t dc = vdup_lane_u8(dc0, 0);
int i;
for (i = 0; i < 4; ++i) {
vst1_lane_u32((uint32_t*)(dst + i * stride), 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) {
dc_4x4(dst, stride, above, left, 1, 1);
}
void vpx_dc_left_predictor_4x4_neon(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left) {
(void)above;
dc_4x4(dst, stride, NULL, left, 0, 1);
}
void vpx_dc_top_predictor_4x4_neon(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left) {
(void)left;
dc_4x4(dst, stride, above, NULL, 1, 0);
}
void vpx_dc_128_predictor_4x4_neon(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left) {
(void)above;
(void)left;
dc_4x4(dst, stride, NULL, NULL, 0, 0);
}
//------------------------------------------------------------------------------
// DC 8x8
// 'do_above' and 'do_left' facilitate branch removal when inlined.
static INLINE void dc_8x8(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left,
int do_above, int do_left) {
uint16x8_t sum_top;
uint16x8_t sum_left;
uint8x8_t dc0;
if (do_above) {
const uint8x8_t A = vld1_u8(above); // top row
const uint16x4_t p0 = vpaddl_u8(A); // cascading summation of the top
const uint16x4_t p1 = vpadd_u16(p0, p0);
const uint16x4_t p2 = vpadd_u16(p1, p1);
sum_top = vcombine_u16(p2, p2);
}
if (do_left) {
const uint8x8_t L = vld1_u8(left); // left border
const uint16x4_t p0 = vpaddl_u8(L); // cascading summation of the left
const uint16x4_t p1 = vpadd_u16(p0, p0);
const uint16x4_t p2 = vpadd_u16(p1, p1);
sum_left = vcombine_u16(p2, p2);
}
if (do_above && do_left) {
const uint16x8_t sum = vaddq_u16(sum_left, sum_top);
dc0 = vrshrn_n_u16(sum, 4);
} else if (do_above) {
dc0 = vrshrn_n_u16(sum_top, 3);
} else if (do_left) {
dc0 = vrshrn_n_u16(sum_left, 3);
} else {
dc0 = vdup_n_u8(0x80);
}
{
const uint8x8_t dc = vdup_lane_u8(dc0, 0);
int i;
for (i = 0; i < 8; ++i) {
vst1_u32((uint32_t*)(dst + i * stride), vreinterpret_u32_u8(dc));
}
}
}
void vpx_dc_predictor_8x8_neon(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left) {
dc_8x8(dst, stride, above, left, 1, 1);
}
void vpx_dc_left_predictor_8x8_neon(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left) {
(void)above;
dc_8x8(dst, stride, NULL, left, 0, 1);
}
void vpx_dc_top_predictor_8x8_neon(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left) {
(void)left;
dc_8x8(dst, stride, above, NULL, 1, 0);
}
void vpx_dc_128_predictor_8x8_neon(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left) {
(void)above;
(void)left;
dc_8x8(dst, stride, NULL, NULL, 0, 0);
}
//------------------------------------------------------------------------------
// DC 16x16
// 'do_above' and 'do_left' facilitate branch removal when inlined.
static INLINE void dc_16x16(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left,
int do_above, int do_left) {
uint16x8_t sum_top;
uint16x8_t sum_left;
uint8x8_t dc0;
if (do_above) {
const uint8x16_t A = vld1q_u8(above); // top row
const uint16x8_t p0 = vpaddlq_u8(A); // cascading summation of the top
const uint16x4_t p1 = vadd_u16(vget_low_u16(p0), vget_high_u16(p0));
const uint16x4_t p2 = vpadd_u16(p1, p1);
const uint16x4_t p3 = vpadd_u16(p2, p2);
sum_top = vcombine_u16(p3, p3);
}
if (do_left) {
const uint8x16_t L = vld1q_u8(left); // left row
const uint16x8_t p0 = vpaddlq_u8(L); // cascading summation of the left
const uint16x4_t p1 = vadd_u16(vget_low_u16(p0), vget_high_u16(p0));
const uint16x4_t p2 = vpadd_u16(p1, p1);
const uint16x4_t p3 = vpadd_u16(p2, p2);
sum_left = vcombine_u16(p3, p3);
}
if (do_above && do_left) {
const uint16x8_t sum = vaddq_u16(sum_left, sum_top);
dc0 = vrshrn_n_u16(sum, 5);
} else if (do_above) {
dc0 = vrshrn_n_u16(sum_top, 4);
} else if (do_left) {
dc0 = vrshrn_n_u16(sum_left, 4);
} else {
dc0 = vdup_n_u8(0x80);
}
{
const uint8x16_t dc = vdupq_lane_u8(dc0, 0);
int i;
for (i = 0; i < 16; ++i) {
vst1q_u8(dst + i * stride, dc);
}
}
}
void vpx_dc_predictor_16x16_neon(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left) {
dc_16x16(dst, stride, above, left, 1, 1);
}
void vpx_dc_left_predictor_16x16_neon(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above,
const uint8_t *left) {
(void)above;
dc_16x16(dst, stride, NULL, left, 0, 1);
}
void vpx_dc_top_predictor_16x16_neon(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above,
const uint8_t *left) {
(void)left;
dc_16x16(dst, stride, above, NULL, 1, 0);
}
void vpx_dc_128_predictor_16x16_neon(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above,
const uint8_t *left) {
(void)above;
(void)left;
dc_16x16(dst, stride, NULL, NULL, 0, 0);
}
//------------------------------------------------------------------------------
// DC 32x32
// 'do_above' and 'do_left' facilitate branch removal when inlined.
static INLINE void dc_32x32(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left,
int do_above, int do_left) {
uint16x8_t sum_top;
uint16x8_t sum_left;
uint8x8_t dc0;
if (do_above) {
const uint8x16_t A0 = vld1q_u8(above); // top row
const uint8x16_t A1 = vld1q_u8(above + 16);
const uint16x8_t p0 = vpaddlq_u8(A0); // cascading summation of the top
const uint16x8_t p1 = vpaddlq_u8(A1);
const uint16x8_t p2 = vaddq_u16(p0, p1);
const uint16x4_t p3 = vadd_u16(vget_low_u16(p2), vget_high_u16(p2));
const uint16x4_t p4 = vpadd_u16(p3, p3);
const uint16x4_t p5 = vpadd_u16(p4, p4);
sum_top = vcombine_u16(p5, p5);
}
if (do_left) {
const uint8x16_t L0 = vld1q_u8(left); // left row
const uint8x16_t L1 = vld1q_u8(left + 16);
const uint16x8_t p0 = vpaddlq_u8(L0); // cascading summation of the left
const uint16x8_t p1 = vpaddlq_u8(L1);
const uint16x8_t p2 = vaddq_u16(p0, p1);
const uint16x4_t p3 = vadd_u16(vget_low_u16(p2), vget_high_u16(p2));
const uint16x4_t p4 = vpadd_u16(p3, p3);
const uint16x4_t p5 = vpadd_u16(p4, p4);
sum_left = vcombine_u16(p5, p5);
}
if (do_above && do_left) {
const uint16x8_t sum = vaddq_u16(sum_left, sum_top);
dc0 = vrshrn_n_u16(sum, 6);
} else if (do_above) {
dc0 = vrshrn_n_u16(sum_top, 5);
} else if (do_left) {
dc0 = vrshrn_n_u16(sum_left, 5);
} else {
dc0 = vdup_n_u8(0x80);
}
{
const uint8x16_t dc = vdupq_lane_u8(dc0, 0);
int i;
for (i = 0; i < 32; ++i) {
vst1q_u8(dst + i * stride, dc);
vst1q_u8(dst + i * stride + 16, dc);
}
}
}
void vpx_dc_predictor_32x32_neon(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left) {
dc_32x32(dst, stride, above, left, 1, 1);
}
void vpx_dc_left_predictor_32x32_neon(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above,
const uint8_t *left) {
(void)above;
dc_32x32(dst, stride, NULL, left, 0, 1);
}
void vpx_dc_top_predictor_32x32_neon(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above,
const uint8_t *left) {
(void)left;
dc_32x32(dst, stride, above, NULL, 1, 0);
}
void vpx_dc_128_predictor_32x32_neon(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above,
const uint8_t *left) {
(void)above;
(void)left;
dc_32x32(dst, stride, NULL, NULL, 0, 0);
}
// -----------------------------------------------------------------------------
void vpx_d45_predictor_4x4_neon(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left) {
const uint64x1_t A0 = vreinterpret_u64_u8(vld1_u8(above)); // top row
const uint64x1_t A1 = vshr_n_u64(A0, 8);
const uint64x1_t A2 = vshr_n_u64(A0, 16);
const uint8x8_t ABCDEFGH = vreinterpret_u8_u64(A0);
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));
(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);
dst[3 * stride + 3] = above[7];
}
void vpx_d45_predictor_8x8_neon(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left) {
static const uint8_t shuffle1[8] = { 1, 2, 3, 4, 5, 6, 7, 7 };
static const uint8_t shuffle2[8] = { 2, 3, 4, 5, 6, 7, 7, 7 };
const uint8x8_t sh_12345677 = vld1_u8(shuffle1);
const uint8x8_t sh_23456777 = vld1_u8(shuffle2);
const uint8x8_t A0 = vld1_u8(above); // top row
const uint8x8_t A1 = vtbl1_u8(A0, sh_12345677);
const uint8x8_t A2 = vtbl1_u8(A0, sh_23456777);
const uint8x8_t avg1 = vhadd_u8(A0, A2);
uint8x8_t row = vrhadd_u8(avg1, A1);
int i;
(void)left;
for (i = 0; i < 7; ++i) {
vst1_u8(dst + i * stride, row);
row = vtbl1_u8(row, sh_12345677);
}
vst1_u8(dst + i * stride, row);
}
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); // top row
const uint8x16_t above_right = vld1q_dup_u8(above + 15);
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);
int i;
(void)left;
for (i = 0; i < 15; ++i) {
vst1q_u8(dst + i * stride, row);
row = vextq_u8(row, above_right, 1);
}
vst1q_u8(dst + i * stride, row);
}
// -----------------------------------------------------------------------------
void vpx_d135_predictor_4x4_neon(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left) {
const uint8x8_t XABCD_u8 = vld1_u8(above - 1);
const uint64x1_t XABCD = vreinterpret_u64_u8(XABCD_u8);
const uint64x1_t ____XABC = vshl_n_u64(XABCD, 32);
const uint32x2_t zero = vdup_n_u32(0);
const uint32x2_t IJKL = vld1_lane_u32((const uint32_t *)left, zero, 0);
const uint8x8_t IJKL_u8 = vreinterpret_u8_u32(IJKL);
const uint64x1_t LKJI____ = vreinterpret_u64_u8(vrev32_u8(IJKL_u8));
const uint64x1_t LKJIXABC = vorr_u64(LKJI____, ____XABC);
const uint8x8_t KJIXABC_ = vreinterpret_u8_u64(vshr_n_u64(LKJIXABC, 8));
const uint8x8_t JIXABC__ = vreinterpret_u8_u64(vshr_n_u64(LKJIXABC, 16));
const uint8_t D = vget_lane_u8(XABCD_u8, 4);
const uint8x8_t JIXABCD_ = vset_lane_u8(D, JIXABC__, 6);
const uint8x8_t LKJIXABC_u8 = vreinterpret_u8_u64(LKJIXABC);
const uint8x8_t avg1 = vhadd_u8(JIXABCD_, LKJIXABC_u8);
const uint8x8_t avg2 = vrhadd_u8(avg1, KJIXABC_);
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 + 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);
}
#if !HAVE_NEON_ASM
void vpx_v_predictor_4x4_neon(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left) {
int i;
uint32x2_t d0u32 = vdup_n_u32(0);
(void)left;
d0u32 = vld1_lane_u32((const uint32_t *)above, d0u32, 0);
for (i = 0; i < 4; i++, dst += stride)
vst1_lane_u32((uint32_t *)dst, d0u32, 0);
}
void vpx_v_predictor_8x8_neon(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left) {
int i;
uint8x8_t d0u8 = vdup_n_u8(0);
(void)left;
d0u8 = vld1_u8(above);
for (i = 0; i < 8; i++, dst += stride)
vst1_u8(dst, d0u8);
}
void vpx_v_predictor_16x16_neon(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left) {
int i;
uint8x16_t q0u8 = vdupq_n_u8(0);
(void)left;
q0u8 = vld1q_u8(above);
for (i = 0; i < 16; i++, dst += stride)
vst1q_u8(dst, q0u8);
}
void vpx_v_predictor_32x32_neon(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left) {
int i;
uint8x16_t q0u8 = vdupq_n_u8(0);
uint8x16_t q1u8 = vdupq_n_u8(0);
(void)left;
q0u8 = vld1q_u8(above);
q1u8 = vld1q_u8(above + 16);
for (i = 0; i < 32; i++, dst += stride) {
vst1q_u8(dst, q0u8);
vst1q_u8(dst + 16, q1u8);
}
}
void vpx_h_predictor_4x4_neon(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left) {
uint8x8_t d0u8 = vdup_n_u8(0);
uint32x2_t d1u32 = vdup_n_u32(0);
(void)above;
d1u32 = vld1_lane_u32((const uint32_t *)left, d1u32, 0);
d0u8 = vdup_lane_u8(vreinterpret_u8_u32(d1u32), 0);
vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(d0u8), 0);
dst += stride;
d0u8 = vdup_lane_u8(vreinterpret_u8_u32(d1u32), 1);
vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(d0u8), 0);
dst += stride;
d0u8 = vdup_lane_u8(vreinterpret_u8_u32(d1u32), 2);
vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(d0u8), 0);
dst += stride;
d0u8 = vdup_lane_u8(vreinterpret_u8_u32(d1u32), 3);
vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(d0u8), 0);
}
void vpx_h_predictor_8x8_neon(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left) {
uint8x8_t d0u8 = vdup_n_u8(0);
uint64x1_t d1u64 = vdup_n_u64(0);
(void)above;
d1u64 = vld1_u64((const uint64_t *)left);
d0u8 = vdup_lane_u8(vreinterpret_u8_u64(d1u64), 0);
vst1_u8(dst, d0u8);
dst += stride;
d0u8 = vdup_lane_u8(vreinterpret_u8_u64(d1u64), 1);
vst1_u8(dst, d0u8);
dst += stride;
d0u8 = vdup_lane_u8(vreinterpret_u8_u64(d1u64), 2);
vst1_u8(dst, d0u8);
dst += stride;
d0u8 = vdup_lane_u8(vreinterpret_u8_u64(d1u64), 3);
vst1_u8(dst, d0u8);
dst += stride;
d0u8 = vdup_lane_u8(vreinterpret_u8_u64(d1u64), 4);
vst1_u8(dst, d0u8);
dst += stride;
d0u8 = vdup_lane_u8(vreinterpret_u8_u64(d1u64), 5);
vst1_u8(dst, d0u8);
dst += stride;
d0u8 = vdup_lane_u8(vreinterpret_u8_u64(d1u64), 6);
vst1_u8(dst, d0u8);
dst += stride;
d0u8 = vdup_lane_u8(vreinterpret_u8_u64(d1u64), 7);
vst1_u8(dst, d0u8);
}
void vpx_h_predictor_16x16_neon(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left) {
int j;
uint8x8_t d2u8 = vdup_n_u8(0);
uint8x16_t q0u8 = vdupq_n_u8(0);
uint8x16_t q1u8 = vdupq_n_u8(0);
(void)above;
q1u8 = vld1q_u8(left);
d2u8 = vget_low_u8(q1u8);
for (j = 0; j < 2; j++, d2u8 = vget_high_u8(q1u8)) {
q0u8 = vdupq_lane_u8(d2u8, 0);
vst1q_u8(dst, q0u8);
dst += stride;
q0u8 = vdupq_lane_u8(d2u8, 1);
vst1q_u8(dst, q0u8);
dst += stride;
q0u8 = vdupq_lane_u8(d2u8, 2);
vst1q_u8(dst, q0u8);
dst += stride;
q0u8 = vdupq_lane_u8(d2u8, 3);
vst1q_u8(dst, q0u8);
dst += stride;
q0u8 = vdupq_lane_u8(d2u8, 4);
vst1q_u8(dst, q0u8);
dst += stride;
q0u8 = vdupq_lane_u8(d2u8, 5);
vst1q_u8(dst, q0u8);
dst += stride;
q0u8 = vdupq_lane_u8(d2u8, 6);
vst1q_u8(dst, q0u8);
dst += stride;
q0u8 = vdupq_lane_u8(d2u8, 7);
vst1q_u8(dst, q0u8);
dst += stride;
}
}
void vpx_h_predictor_32x32_neon(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left) {
int j, k;
uint8x8_t d2u8 = vdup_n_u8(0);
uint8x16_t q0u8 = vdupq_n_u8(0);
uint8x16_t q1u8 = vdupq_n_u8(0);
(void)above;
for (k = 0; k < 2; k++, left += 16) {
q1u8 = vld1q_u8(left);
d2u8 = vget_low_u8(q1u8);
for (j = 0; j < 2; j++, d2u8 = vget_high_u8(q1u8)) {
q0u8 = vdupq_lane_u8(d2u8, 0);
vst1q_u8(dst, q0u8);
vst1q_u8(dst + 16, q0u8);
dst += stride;
q0u8 = vdupq_lane_u8(d2u8, 1);
vst1q_u8(dst, q0u8);
vst1q_u8(dst + 16, q0u8);
dst += stride;
q0u8 = vdupq_lane_u8(d2u8, 2);
vst1q_u8(dst, q0u8);
vst1q_u8(dst + 16, q0u8);
dst += stride;
q0u8 = vdupq_lane_u8(d2u8, 3);
vst1q_u8(dst, q0u8);
vst1q_u8(dst + 16, q0u8);
dst += stride;
q0u8 = vdupq_lane_u8(d2u8, 4);
vst1q_u8(dst, q0u8);
vst1q_u8(dst + 16, q0u8);
dst += stride;
q0u8 = vdupq_lane_u8(d2u8, 5);
vst1q_u8(dst, q0u8);
vst1q_u8(dst + 16, q0u8);
dst += stride;
q0u8 = vdupq_lane_u8(d2u8, 6);
vst1q_u8(dst, q0u8);
vst1q_u8(dst + 16, q0u8);
dst += stride;
q0u8 = vdupq_lane_u8(d2u8, 7);
vst1q_u8(dst, q0u8);
vst1q_u8(dst + 16, q0u8);
dst += stride;
}
}
}
void vpx_tm_predictor_4x4_neon(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left) {
int i;
uint16x8_t q1u16, q3u16;
int16x8_t q1s16;
uint8x8_t d0u8 = vdup_n_u8(0);
uint32x2_t d2u32 = vdup_n_u32(0);
d0u8 = vld1_dup_u8(above - 1);
d2u32 = vld1_lane_u32((const uint32_t *)above, d2u32, 0);
q3u16 = vsubl_u8(vreinterpret_u8_u32(d2u32), d0u8);
for (i = 0; i < 4; i++, dst += stride) {
q1u16 = vdupq_n_u16((uint16_t)left[i]);
q1s16 = vaddq_s16(vreinterpretq_s16_u16(q1u16),
vreinterpretq_s16_u16(q3u16));
d0u8 = vqmovun_s16(q1s16);
vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(d0u8), 0);
}
}
void vpx_tm_predictor_8x8_neon(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left) {
int j;
uint16x8_t q0u16, q3u16, q10u16;
int16x8_t q0s16;
uint16x4_t d20u16;
uint8x8_t d0u8, d2u8, d30u8;
d0u8 = vld1_dup_u8(above - 1);
d30u8 = vld1_u8(left);
d2u8 = vld1_u8(above);
q10u16 = vmovl_u8(d30u8);
q3u16 = vsubl_u8(d2u8, d0u8);
d20u16 = vget_low_u16(q10u16);
for (j = 0; j < 2; j++, d20u16 = vget_high_u16(q10u16)) {
q0u16 = vdupq_lane_u16(d20u16, 0);
q0s16 = vaddq_s16(vreinterpretq_s16_u16(q3u16),
vreinterpretq_s16_u16(q0u16));
d0u8 = vqmovun_s16(q0s16);
vst1_u64((uint64_t *)dst, vreinterpret_u64_u8(d0u8));
dst += stride;
q0u16 = vdupq_lane_u16(d20u16, 1);
q0s16 = vaddq_s16(vreinterpretq_s16_u16(q3u16),
vreinterpretq_s16_u16(q0u16));
d0u8 = vqmovun_s16(q0s16);
vst1_u64((uint64_t *)dst, vreinterpret_u64_u8(d0u8));
dst += stride;
q0u16 = vdupq_lane_u16(d20u16, 2);
q0s16 = vaddq_s16(vreinterpretq_s16_u16(q3u16),
vreinterpretq_s16_u16(q0u16));
d0u8 = vqmovun_s16(q0s16);
vst1_u64((uint64_t *)dst, vreinterpret_u64_u8(d0u8));
dst += stride;
q0u16 = vdupq_lane_u16(d20u16, 3);
q0s16 = vaddq_s16(vreinterpretq_s16_u16(q3u16),
vreinterpretq_s16_u16(q0u16));
d0u8 = vqmovun_s16(q0s16);
vst1_u64((uint64_t *)dst, vreinterpret_u64_u8(d0u8));
dst += stride;
}
}
void vpx_tm_predictor_16x16_neon(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left) {
int j, k;
uint16x8_t q0u16, q2u16, q3u16, q8u16, q10u16;
uint8x16_t q0u8, q1u8;
int16x8_t q0s16, q1s16, q8s16, q11s16;
uint16x4_t d20u16;
uint8x8_t d2u8, d3u8, d18u8, d22u8, d23u8;
q0u8 = vld1q_dup_u8(above - 1);
q1u8 = vld1q_u8(above);
q2u16 = vsubl_u8(vget_low_u8(q1u8), vget_low_u8(q0u8));
q3u16 = vsubl_u8(vget_high_u8(q1u8), vget_high_u8(q0u8));
for (k = 0; k < 2; k++, left += 8) {
d18u8 = vld1_u8(left);
q10u16 = vmovl_u8(d18u8);
d20u16 = vget_low_u16(q10u16);
for (j = 0; j < 2; j++, d20u16 = vget_high_u16(q10u16)) {
q0u16 = vdupq_lane_u16(d20u16, 0);
q8u16 = vdupq_lane_u16(d20u16, 1);
q1s16 = vaddq_s16(vreinterpretq_s16_u16(q0u16),
vreinterpretq_s16_u16(q2u16));
q0s16 = vaddq_s16(vreinterpretq_s16_u16(q0u16),
vreinterpretq_s16_u16(q3u16));
q11s16 = vaddq_s16(vreinterpretq_s16_u16(q8u16),
vreinterpretq_s16_u16(q2u16));
q8s16 = vaddq_s16(vreinterpretq_s16_u16(q8u16),
vreinterpretq_s16_u16(q3u16));
d2u8 = vqmovun_s16(q1s16);
d3u8 = vqmovun_s16(q0s16);
d22u8 = vqmovun_s16(q11s16);
d23u8 = vqmovun_s16(q8s16);
vst1_u64((uint64_t *)dst, vreinterpret_u64_u8(d2u8));
vst1_u64((uint64_t *)(dst + 8), vreinterpret_u64_u8(d3u8));
dst += stride;
vst1_u64((uint64_t *)dst, vreinterpret_u64_u8(d22u8));
vst1_u64((uint64_t *)(dst + 8), vreinterpret_u64_u8(d23u8));
dst += stride;
q0u16 = vdupq_lane_u16(d20u16, 2);
q8u16 = vdupq_lane_u16(d20u16, 3);
q1s16 = vaddq_s16(vreinterpretq_s16_u16(q0u16),
vreinterpretq_s16_u16(q2u16));
q0s16 = vaddq_s16(vreinterpretq_s16_u16(q0u16),
vreinterpretq_s16_u16(q3u16));
q11s16 = vaddq_s16(vreinterpretq_s16_u16(q8u16),
vreinterpretq_s16_u16(q2u16));
q8s16 = vaddq_s16(vreinterpretq_s16_u16(q8u16),
vreinterpretq_s16_u16(q3u16));
d2u8 = vqmovun_s16(q1s16);
d3u8 = vqmovun_s16(q0s16);
d22u8 = vqmovun_s16(q11s16);
d23u8 = vqmovun_s16(q8s16);
vst1_u64((uint64_t *)dst, vreinterpret_u64_u8(d2u8));
vst1_u64((uint64_t *)(dst + 8), vreinterpret_u64_u8(d3u8));
dst += stride;
vst1_u64((uint64_t *)dst, vreinterpret_u64_u8(d22u8));
vst1_u64((uint64_t *)(dst + 8), vreinterpret_u64_u8(d23u8));
dst += stride;
}
}
}
void vpx_tm_predictor_32x32_neon(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left) {
int j, k;
uint16x8_t q0u16, q3u16, q8u16, q9u16, q10u16, q11u16;
uint8x16_t q0u8, q1u8, q2u8;
int16x8_t q12s16, q13s16, q14s16, q15s16;
uint16x4_t d6u16;
uint8x8_t d0u8, d1u8, d2u8, d3u8, d26u8;
q0u8 = vld1q_dup_u8(above - 1);
q1u8 = vld1q_u8(above);
q2u8 = vld1q_u8(above + 16);
q8u16 = vsubl_u8(vget_low_u8(q1u8), vget_low_u8(q0u8));
q9u16 = vsubl_u8(vget_high_u8(q1u8), vget_high_u8(q0u8));
q10u16 = vsubl_u8(vget_low_u8(q2u8), vget_low_u8(q0u8));
q11u16 = vsubl_u8(vget_high_u8(q2u8), vget_high_u8(q0u8));
for (k = 0; k < 4; k++, left += 8) {
d26u8 = vld1_u8(left);
q3u16 = vmovl_u8(d26u8);
d6u16 = vget_low_u16(q3u16);
for (j = 0; j < 2; j++, d6u16 = vget_high_u16(q3u16)) {
q0u16 = vdupq_lane_u16(d6u16, 0);
q12s16 = vaddq_s16(vreinterpretq_s16_u16(q0u16),
vreinterpretq_s16_u16(q8u16));
q13s16 = vaddq_s16(vreinterpretq_s16_u16(q0u16),
vreinterpretq_s16_u16(q9u16));
q14s16 = vaddq_s16(vreinterpretq_s16_u16(q0u16),
vreinterpretq_s16_u16(q10u16));
q15s16 = vaddq_s16(vreinterpretq_s16_u16(q0u16),
vreinterpretq_s16_u16(q11u16));
d0u8 = vqmovun_s16(q12s16);
d1u8 = vqmovun_s16(q13s16);
d2u8 = vqmovun_s16(q14s16);
d3u8 = vqmovun_s16(q15s16);
q0u8 = vcombine_u8(d0u8, d1u8);
q1u8 = vcombine_u8(d2u8, d3u8);
vst1q_u64((uint64_t *)dst, vreinterpretq_u64_u8(q0u8));
vst1q_u64((uint64_t *)(dst + 16), vreinterpretq_u64_u8(q1u8));
dst += stride;
q0u16 = vdupq_lane_u16(d6u16, 1);
q12s16 = vaddq_s16(vreinterpretq_s16_u16(q0u16),
vreinterpretq_s16_u16(q8u16));
q13s16 = vaddq_s16(vreinterpretq_s16_u16(q0u16),
vreinterpretq_s16_u16(q9u16));
q14s16 = vaddq_s16(vreinterpretq_s16_u16(q0u16),
vreinterpretq_s16_u16(q10u16));
q15s16 = vaddq_s16(vreinterpretq_s16_u16(q0u16),
vreinterpretq_s16_u16(q11u16));
d0u8 = vqmovun_s16(q12s16);
d1u8 = vqmovun_s16(q13s16);
d2u8 = vqmovun_s16(q14s16);
d3u8 = vqmovun_s16(q15s16);
q0u8 = vcombine_u8(d0u8, d1u8);
q1u8 = vcombine_u8(d2u8, d3u8);
vst1q_u64((uint64_t *)dst, vreinterpretq_u64_u8(q0u8));
vst1q_u64((uint64_t *)(dst + 16), vreinterpretq_u64_u8(q1u8));
dst += stride;
q0u16 = vdupq_lane_u16(d6u16, 2);
q12s16 = vaddq_s16(vreinterpretq_s16_u16(q0u16),
vreinterpretq_s16_u16(q8u16));
q13s16 = vaddq_s16(vreinterpretq_s16_u16(q0u16),
vreinterpretq_s16_u16(q9u16));
q14s16 = vaddq_s16(vreinterpretq_s16_u16(q0u16),
vreinterpretq_s16_u16(q10u16));
q15s16 = vaddq_s16(vreinterpretq_s16_u16(q0u16),
vreinterpretq_s16_u16(q11u16));
d0u8 = vqmovun_s16(q12s16);
d1u8 = vqmovun_s16(q13s16);
d2u8 = vqmovun_s16(q14s16);
d3u8 = vqmovun_s16(q15s16);
q0u8 = vcombine_u8(d0u8, d1u8);
q1u8 = vcombine_u8(d2u8, d3u8);
vst1q_u64((uint64_t *)dst, vreinterpretq_u64_u8(q0u8));
vst1q_u64((uint64_t *)(dst + 16), vreinterpretq_u64_u8(q1u8));
dst += stride;
q0u16 = vdupq_lane_u16(d6u16, 3);
q12s16 = vaddq_s16(vreinterpretq_s16_u16(q0u16),
vreinterpretq_s16_u16(q8u16));
q13s16 = vaddq_s16(vreinterpretq_s16_u16(q0u16),
vreinterpretq_s16_u16(q9u16));
q14s16 = vaddq_s16(vreinterpretq_s16_u16(q0u16),
vreinterpretq_s16_u16(q10u16));
q15s16 = vaddq_s16(vreinterpretq_s16_u16(q0u16),
vreinterpretq_s16_u16(q11u16));
d0u8 = vqmovun_s16(q12s16);
d1u8 = vqmovun_s16(q13s16);
d2u8 = vqmovun_s16(q14s16);
d3u8 = vqmovun_s16(q15s16);
q0u8 = vcombine_u8(d0u8, d1u8);
q1u8 = vcombine_u8(d2u8, d3u8);
vst1q_u64((uint64_t *)dst, vreinterpretq_u64_u8(q0u8));
vst1q_u64((uint64_t *)(dst + 16), vreinterpretq_u64_u8(q1u8));
dst += stride;
}
}
}
#endif // !HAVE_NEON_ASM