| /* |
| * Copyright (c) 2020, Alliance for Open Media. 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 "config/aom_dsp_rtcd.h" |
| #include "aom/aom_integer.h" |
| #include "aom_dsp/arm/sum_neon.h" |
| #include "av1/common/arm/mem_neon.h" |
| #include "av1/common/arm/transpose_neon.h" |
| |
| static INLINE void sse_w16_neon(uint32x4_t *sum, const uint8_t *a, |
| const uint8_t *b) { |
| const uint8x16_t v_a0 = vld1q_u8(a); |
| const uint8x16_t v_b0 = vld1q_u8(b); |
| const uint8x16_t diff = vabdq_u8(v_a0, v_b0); |
| const uint8x8_t diff_lo = vget_low_u8(diff); |
| const uint8x8_t diff_hi = vget_high_u8(diff); |
| *sum = vpadalq_u16(*sum, vmull_u8(diff_lo, diff_lo)); |
| *sum = vpadalq_u16(*sum, vmull_u8(diff_hi, diff_hi)); |
| } |
| static INLINE void aom_sse4x2_neon(const uint8_t *a, int a_stride, |
| const uint8_t *b, int b_stride, |
| uint32x4_t *sum) { |
| uint8x8_t v_a0, v_b0; |
| v_a0 = v_b0 = vcreate_u8(0); |
| // above line is only to shadow [-Werror=uninitialized] |
| v_a0 = vreinterpret_u8_u32( |
| vld1_lane_u32((uint32_t *)a, vreinterpret_u32_u8(v_a0), 0)); |
| v_a0 = vreinterpret_u8_u32( |
| vld1_lane_u32((uint32_t *)(a + a_stride), vreinterpret_u32_u8(v_a0), 1)); |
| v_b0 = vreinterpret_u8_u32( |
| vld1_lane_u32((uint32_t *)b, vreinterpret_u32_u8(v_b0), 0)); |
| v_b0 = vreinterpret_u8_u32( |
| vld1_lane_u32((uint32_t *)(b + b_stride), vreinterpret_u32_u8(v_b0), 1)); |
| const uint8x8_t v_a_w = vabd_u8(v_a0, v_b0); |
| *sum = vpadalq_u16(*sum, vmull_u8(v_a_w, v_a_w)); |
| } |
| static INLINE void aom_sse8_neon(const uint8_t *a, const uint8_t *b, |
| uint32x4_t *sum) { |
| const uint8x8_t v_a_w = vld1_u8(a); |
| const uint8x8_t v_b_w = vld1_u8(b); |
| const uint8x8_t v_d_w = vabd_u8(v_a_w, v_b_w); |
| *sum = vpadalq_u16(*sum, vmull_u8(v_d_w, v_d_w)); |
| } |
| int64_t aom_sse_neon(const uint8_t *a, int a_stride, const uint8_t *b, |
| int b_stride, int width, int height) { |
| int y = 0; |
| int64_t sse = 0; |
| uint32x4_t sum = vdupq_n_u32(0); |
| switch (width) { |
| case 4: |
| do { |
| aom_sse4x2_neon(a, a_stride, b, b_stride, &sum); |
| a += a_stride << 1; |
| b += b_stride << 1; |
| y += 2; |
| } while (y < height); |
| #if defined(__aarch64__) |
| sse = vaddvq_u32(sum); |
| #else |
| sse = horizontal_add_s32x4(vreinterpretq_s32_u32(sum)); |
| #endif // __aarch64__ |
| break; |
| case 8: |
| do { |
| aom_sse8_neon(a, b, &sum); |
| a += a_stride; |
| b += b_stride; |
| y += 1; |
| } while (y < height); |
| #if defined(__aarch64__) |
| sse = vaddvq_u32(sum); |
| #else |
| sse = horizontal_add_s32x4(vreinterpretq_s32_u32(sum)); |
| #endif // __aarch64__ |
| break; |
| case 16: |
| do { |
| sse_w16_neon(&sum, a, b); |
| a += a_stride; |
| b += b_stride; |
| y += 1; |
| } while (y < height); |
| #if defined(__aarch64__) |
| sse = vaddvq_u32(sum); |
| #else |
| sse = horizontal_add_s32x4(vreinterpretq_s32_u32(sum)); |
| #endif // __aarch64__ |
| break; |
| case 32: |
| do { |
| sse_w16_neon(&sum, a, b); |
| sse_w16_neon(&sum, a + 16, b + 16); |
| a += a_stride; |
| b += b_stride; |
| y += 1; |
| } while (y < height); |
| #if defined(__aarch64__) |
| sse = vaddvq_u32(sum); |
| #else |
| sse = horizontal_add_s32x4(vreinterpretq_s32_u32(sum)); |
| #endif // __aarch64__ |
| break; |
| case 64: |
| do { |
| sse_w16_neon(&sum, a, b); |
| sse_w16_neon(&sum, a + 16 * 1, b + 16 * 1); |
| sse_w16_neon(&sum, a + 16 * 2, b + 16 * 2); |
| sse_w16_neon(&sum, a + 16 * 3, b + 16 * 3); |
| a += a_stride; |
| b += b_stride; |
| y += 1; |
| } while (y < height); |
| #if defined(__aarch64__) |
| sse = vaddvq_u32(sum); |
| #else |
| sse = horizontal_add_s32x4(vreinterpretq_s32_u32(sum)); |
| #endif // __aarch64__ |
| break; |
| case 128: |
| do { |
| sse_w16_neon(&sum, a, b); |
| sse_w16_neon(&sum, a + 16 * 1, b + 16 * 1); |
| sse_w16_neon(&sum, a + 16 * 2, b + 16 * 2); |
| sse_w16_neon(&sum, a + 16 * 3, b + 16 * 3); |
| sse_w16_neon(&sum, a + 16 * 4, b + 16 * 4); |
| sse_w16_neon(&sum, a + 16 * 5, b + 16 * 5); |
| sse_w16_neon(&sum, a + 16 * 6, b + 16 * 6); |
| sse_w16_neon(&sum, a + 16 * 7, b + 16 * 7); |
| a += a_stride; |
| b += b_stride; |
| y += 1; |
| } while (y < height); |
| #if defined(__aarch64__) |
| sse = vaddvq_u32(sum); |
| #else |
| sse = horizontal_add_s32x4(vreinterpretq_s32_u32(sum)); |
| #endif // __aarch64__ |
| break; |
| default: |
| if (width & 0x07) { |
| do { |
| int i = 0; |
| do { |
| aom_sse8_neon(a + i, b + i, &sum); |
| aom_sse8_neon(a + i + a_stride, b + i + b_stride, &sum); |
| i += 8; |
| } while (i + 4 < width); |
| aom_sse4x2_neon(a + i, a_stride, b + i, b_stride, &sum); |
| a += (a_stride << 1); |
| b += (b_stride << 1); |
| y += 2; |
| } while (y < height); |
| } else { |
| do { |
| int i = 0; |
| do { |
| aom_sse8_neon(a + i, b + i, &sum); |
| i += 8; |
| } while (i < width); |
| a += a_stride; |
| b += b_stride; |
| y += 1; |
| } while (y < height); |
| } |
| #if defined(__aarch64__) |
| sse = vaddvq_u32(sum); |
| #else |
| sse = horizontal_add_s32x4(vreinterpretq_s32_u32(sum)); |
| #endif // __aarch64__ |
| break; |
| } |
| return sse; |
| } |
| |
| #if CONFIG_AV1_HIGHBITDEPTH |
| static INLINE uint32_t highbd_sse_W8x1_neon(uint16x8_t q2, uint16x8_t q3) { |
| uint32_t sse; |
| const uint32_t sse1 = 0; |
| const uint32x4_t q1 = vld1q_dup_u32(&sse1); |
| |
| uint16x8_t q4 = vabdq_u16(q2, q3); // diff = abs(a[x] - b[x]) |
| uint16x4_t d0 = vget_low_u16(q4); |
| uint16x4_t d1 = vget_high_u16(q4); |
| |
| uint32x4_t q6 = vmlal_u16(q1, d0, d0); |
| uint32x4_t q7 = vmlal_u16(q1, d1, d1); |
| |
| uint32x2_t d4 = vadd_u32(vget_low_u32(q6), vget_high_u32(q6)); |
| uint32x2_t d5 = vadd_u32(vget_low_u32(q7), vget_high_u32(q7)); |
| |
| uint32x2_t d6 = vadd_u32(d4, d5); |
| |
| sse = vget_lane_u32(d6, 0); |
| sse += vget_lane_u32(d6, 1); |
| |
| return sse; |
| } |
| |
| int64_t aom_highbd_sse_neon(const uint8_t *a8, int a_stride, const uint8_t *b8, |
| int b_stride, int width, int height) { |
| const uint16x8_t q0 = { 0, 1, 2, 3, 4, 5, 6, 7 }; |
| int64_t sse = 0; |
| uint16_t *a = CONVERT_TO_SHORTPTR(a8); |
| uint16_t *b = CONVERT_TO_SHORTPTR(b8); |
| int x, y; |
| int addinc; |
| uint16x4_t d0, d1, d2, d3; |
| uint16_t dx; |
| uint16x8_t q2, q3, q4, q5; |
| |
| switch (width) { |
| case 4: |
| for (y = 0; y < height; y += 2) { |
| d0 = vld1_u16(a); // load 4 data |
| a += a_stride; |
| d1 = vld1_u16(a); |
| a += a_stride; |
| |
| d2 = vld1_u16(b); |
| b += b_stride; |
| d3 = vld1_u16(b); |
| b += b_stride; |
| q2 = vcombine_u16(d0, d1); // make a 8 data vector |
| q3 = vcombine_u16(d2, d3); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| } |
| break; |
| case 8: |
| for (y = 0; y < height; y++) { |
| q2 = vld1q_u16(a); |
| q3 = vld1q_u16(b); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| |
| a += a_stride; |
| b += b_stride; |
| } |
| break; |
| case 16: |
| for (y = 0; y < height; y++) { |
| q2 = vld1q_u16(a); |
| q3 = vld1q_u16(b); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| |
| q2 = vld1q_u16(a + 8); |
| q3 = vld1q_u16(b + 8); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| |
| a += a_stride; |
| b += b_stride; |
| } |
| break; |
| case 32: |
| for (y = 0; y < height; y++) { |
| q2 = vld1q_u16(a); |
| q3 = vld1q_u16(b); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| |
| q2 = vld1q_u16(a + 8); |
| q3 = vld1q_u16(b + 8); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| |
| q2 = vld1q_u16(a + 16); |
| q3 = vld1q_u16(b + 16); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| |
| q2 = vld1q_u16(a + 24); |
| q3 = vld1q_u16(b + 24); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| |
| a += a_stride; |
| b += b_stride; |
| } |
| break; |
| case 64: |
| for (y = 0; y < height; y++) { |
| q2 = vld1q_u16(a); |
| q3 = vld1q_u16(b); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| |
| q2 = vld1q_u16(a + 8); |
| q3 = vld1q_u16(b + 8); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| |
| q2 = vld1q_u16(a + 16); |
| q3 = vld1q_u16(b + 16); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| |
| q2 = vld1q_u16(a + 24); |
| q3 = vld1q_u16(b + 24); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| |
| q2 = vld1q_u16(a + 32); |
| q3 = vld1q_u16(b + 32); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| |
| q2 = vld1q_u16(a + 40); |
| q3 = vld1q_u16(b + 40); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| |
| q2 = vld1q_u16(a + 48); |
| q3 = vld1q_u16(b + 48); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| |
| q2 = vld1q_u16(a + 56); |
| q3 = vld1q_u16(b + 56); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| |
| a += a_stride; |
| b += b_stride; |
| } |
| break; |
| case 128: |
| for (y = 0; y < height; y++) { |
| q2 = vld1q_u16(a); |
| q3 = vld1q_u16(b); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| |
| q2 = vld1q_u16(a + 8); |
| q3 = vld1q_u16(b + 8); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| |
| q2 = vld1q_u16(a + 16); |
| q3 = vld1q_u16(b + 16); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| |
| q2 = vld1q_u16(a + 24); |
| q3 = vld1q_u16(b + 24); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| |
| q2 = vld1q_u16(a + 32); |
| q3 = vld1q_u16(b + 32); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| |
| q2 = vld1q_u16(a + 40); |
| q3 = vld1q_u16(b + 40); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| |
| q2 = vld1q_u16(a + 48); |
| q3 = vld1q_u16(b + 48); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| |
| q2 = vld1q_u16(a + 56); |
| q3 = vld1q_u16(b + 56); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| |
| q2 = vld1q_u16(a + 64); |
| q3 = vld1q_u16(b + 64); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| |
| q2 = vld1q_u16(a + 72); |
| q3 = vld1q_u16(b + 72); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| |
| q2 = vld1q_u16(a + 80); |
| q3 = vld1q_u16(b + 80); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| |
| q2 = vld1q_u16(a + 88); |
| q3 = vld1q_u16(b + 88); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| |
| q2 = vld1q_u16(a + 96); |
| q3 = vld1q_u16(b + 96); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| |
| q2 = vld1q_u16(a + 104); |
| q3 = vld1q_u16(b + 104); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| |
| q2 = vld1q_u16(a + 112); |
| q3 = vld1q_u16(b + 112); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| |
| q2 = vld1q_u16(a + 120); |
| q3 = vld1q_u16(b + 120); |
| |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| a += a_stride; |
| b += b_stride; |
| } |
| break; |
| default: |
| |
| for (y = 0; y < height; y++) { |
| x = width; |
| while (x > 0) { |
| addinc = width - x; |
| q2 = vld1q_u16(a + addinc); |
| q3 = vld1q_u16(b + addinc); |
| if (x < 8) { |
| dx = x; |
| q4 = vld1q_dup_u16(&dx); |
| q5 = vcltq_u16(q0, q4); |
| q2 = vandq_u16(q2, q5); |
| q3 = vandq_u16(q3, q5); |
| } |
| sse += highbd_sse_W8x1_neon(q2, q3); |
| x -= 8; |
| } |
| a += a_stride; |
| b += b_stride; |
| } |
| } |
| return (int64_t)sse; |
| } |
| #endif |
