ref: 7808cc796ef1b7dde0a5e03f6d71e8a7f0174a1e
dir: /vpx_dsp/arm/sad4d_neon.c/
/* * Copyright (c) 2015 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 <assert.h> #include "./vpx_config.h" #include "./vpx_dsp_rtcd.h" #include "vpx/vpx_integer.h" #include "vpx_dsp/arm/mem_neon.h" #include "vpx_dsp/arm/sum_neon.h" static INLINE uint8x8_t load_unaligned_2_buffers(const void *const buf0, const void *const buf1) { uint32_t a; uint32x2_t aa = vdup_n_u32(0); memcpy(&a, buf0, 4); aa = vset_lane_u32(a, aa, 0); memcpy(&a, buf1, 4); aa = vset_lane_u32(a, aa, 1); return vreinterpret_u8_u32(aa); } static INLINE void sad4x_4d(const uint8_t *const src_ptr, const int src_stride, const uint8_t *const ref_array[4], const int ref_stride, const int height, uint32_t *const res) { int i; uint16x8_t abs[2] = { vdupq_n_u16(0), vdupq_n_u16(0) }; uint16x4_t a[2]; uint32x4_t r; assert(!((intptr_t)src_ptr % sizeof(uint32_t))); assert(!(src_stride % sizeof(uint32_t))); for (i = 0; i < height; ++i) { const uint8x8_t s = vreinterpret_u8_u32( vld1_dup_u32((const uint32_t *)(src_ptr + i * src_stride))); const uint8x8_t ref01 = load_unaligned_2_buffers( ref_array[0] + i * ref_stride, ref_array[1] + i * ref_stride); const uint8x8_t ref23 = load_unaligned_2_buffers( ref_array[2] + i * ref_stride, ref_array[3] + i * ref_stride); abs[0] = vabal_u8(abs[0], s, ref01); abs[1] = vabal_u8(abs[1], s, ref23); } a[0] = vpadd_u16(vget_low_u16(abs[0]), vget_high_u16(abs[0])); a[1] = vpadd_u16(vget_low_u16(abs[1]), vget_high_u16(abs[1])); r = vpaddlq_u16(vcombine_u16(a[0], a[1])); vst1q_u32(res, r); } void vpx_sad4x4x4d_neon(const uint8_t *src_ptr, int src_stride, const uint8_t *const ref_array[4], int ref_stride, uint32_t *res) { sad4x_4d(src_ptr, src_stride, ref_array, ref_stride, 4, res); } void vpx_sad4x8x4d_neon(const uint8_t *src_ptr, int src_stride, const uint8_t *const ref_array[4], int ref_stride, uint32_t *res) { sad4x_4d(src_ptr, src_stride, ref_array, ref_stride, 8, res); } //////////////////////////////////////////////////////////////////////////////// // Can handle 512 pixels' sad sum (such as 16x32 or 32x16) static INLINE void sad_512_pel_final_neon(const uint16x8_t *sum /*[4]*/, uint32_t *const res) { const uint16x4_t a0 = vadd_u16(vget_low_u16(sum[0]), vget_high_u16(sum[0])); const uint16x4_t a1 = vadd_u16(vget_low_u16(sum[1]), vget_high_u16(sum[1])); const uint16x4_t a2 = vadd_u16(vget_low_u16(sum[2]), vget_high_u16(sum[2])); const uint16x4_t a3 = vadd_u16(vget_low_u16(sum[3]), vget_high_u16(sum[3])); const uint16x4_t b0 = vpadd_u16(a0, a1); const uint16x4_t b1 = vpadd_u16(a2, a3); const uint32x4_t r = vpaddlq_u16(vcombine_u16(b0, b1)); vst1q_u32(res, r); } // Can handle 1024 pixels' sad sum (such as 32x32) static INLINE void sad_1024_pel_final_neon(const uint16x8_t *sum /*[4]*/, uint32_t *const res) { const uint16x4_t a0 = vpadd_u16(vget_low_u16(sum[0]), vget_high_u16(sum[0])); const uint16x4_t a1 = vpadd_u16(vget_low_u16(sum[1]), vget_high_u16(sum[1])); const uint16x4_t a2 = vpadd_u16(vget_low_u16(sum[2]), vget_high_u16(sum[2])); const uint16x4_t a3 = vpadd_u16(vget_low_u16(sum[3]), vget_high_u16(sum[3])); const uint32x4_t b0 = vpaddlq_u16(vcombine_u16(a0, a1)); const uint32x4_t b1 = vpaddlq_u16(vcombine_u16(a2, a3)); const uint32x2_t c0 = vpadd_u32(vget_low_u32(b0), vget_high_u32(b0)); const uint32x2_t c1 = vpadd_u32(vget_low_u32(b1), vget_high_u32(b1)); vst1q_u32(res, vcombine_u32(c0, c1)); } // Can handle 2048 pixels' sad sum (such as 32x64 or 64x32) static INLINE void sad_2048_pel_final_neon(const uint16x8_t *sum /*[4]*/, uint32_t *const res) { const uint32x4_t a0 = vpaddlq_u16(sum[0]); const uint32x4_t a1 = vpaddlq_u16(sum[1]); const uint32x4_t a2 = vpaddlq_u16(sum[2]); const uint32x4_t a3 = vpaddlq_u16(sum[3]); const uint32x2_t b0 = vadd_u32(vget_low_u32(a0), vget_high_u32(a0)); const uint32x2_t b1 = vadd_u32(vget_low_u32(a1), vget_high_u32(a1)); const uint32x2_t b2 = vadd_u32(vget_low_u32(a2), vget_high_u32(a2)); const uint32x2_t b3 = vadd_u32(vget_low_u32(a3), vget_high_u32(a3)); const uint32x2_t c0 = vpadd_u32(b0, b1); const uint32x2_t c1 = vpadd_u32(b2, b3); vst1q_u32(res, vcombine_u32(c0, c1)); } // Can handle 4096 pixels' sad sum (such as 64x64) static INLINE void sad_4096_pel_final_neon(const uint16x8_t *sum /*[8]*/, uint32_t *const res) { const uint32x4_t a0 = vpaddlq_u16(sum[0]); const uint32x4_t a1 = vpaddlq_u16(sum[1]); const uint32x4_t a2 = vpaddlq_u16(sum[2]); const uint32x4_t a3 = vpaddlq_u16(sum[3]); const uint32x4_t a4 = vpaddlq_u16(sum[4]); const uint32x4_t a5 = vpaddlq_u16(sum[5]); const uint32x4_t a6 = vpaddlq_u16(sum[6]); const uint32x4_t a7 = vpaddlq_u16(sum[7]); const uint32x4_t b0 = vaddq_u32(a0, a1); const uint32x4_t b1 = vaddq_u32(a2, a3); const uint32x4_t b2 = vaddq_u32(a4, a5); const uint32x4_t b3 = vaddq_u32(a6, a7); const uint32x2_t c0 = vadd_u32(vget_low_u32(b0), vget_high_u32(b0)); const uint32x2_t c1 = vadd_u32(vget_low_u32(b1), vget_high_u32(b1)); const uint32x2_t c2 = vadd_u32(vget_low_u32(b2), vget_high_u32(b2)); const uint32x2_t c3 = vadd_u32(vget_low_u32(b3), vget_high_u32(b3)); const uint32x2_t d0 = vpadd_u32(c0, c1); const uint32x2_t d1 = vpadd_u32(c2, c3); vst1q_u32(res, vcombine_u32(d0, d1)); } static INLINE void sad8x_4d(const uint8_t *src_ptr, int src_stride, const uint8_t *const ref_array[4], int ref_stride, uint32_t *res, const int height) { int i, j; const uint8_t *ref_loop[4] = { ref_array[0], ref_array[1], ref_array[2], ref_array[3] }; uint16x8_t sum[4] = { vdupq_n_u16(0), vdupq_n_u16(0), vdupq_n_u16(0), vdupq_n_u16(0) }; for (i = 0; i < height; ++i) { const uint8x8_t s = vld1_u8(src_ptr); src_ptr += src_stride; for (j = 0; j < 4; ++j) { const uint8x8_t b_u8 = vld1_u8(ref_loop[j]); ref_loop[j] += ref_stride; sum[j] = vabal_u8(sum[j], s, b_u8); } } sad_512_pel_final_neon(sum, res); } void vpx_sad8x4x4d_neon(const uint8_t *src_ptr, int src_stride, const uint8_t *const ref_array[4], int ref_stride, uint32_t *res) { sad8x_4d(src_ptr, src_stride, ref_array, ref_stride, res, 4); } void vpx_sad8x8x4d_neon(const uint8_t *src_ptr, int src_stride, const uint8_t *const ref_array[4], int ref_stride, uint32_t *res) { sad8x_4d(src_ptr, src_stride, ref_array, ref_stride, res, 8); } void vpx_sad8x16x4d_neon(const uint8_t *src_ptr, int src_stride, const uint8_t *const ref_array[4], int ref_stride, uint32_t *res) { sad8x_4d(src_ptr, src_stride, ref_array, ref_stride, res, 16); } //////////////////////////////////////////////////////////////////////////////// static INLINE void sad16_neon(const uint8_t *ref_ptr, const uint8x16_t src_ptr, uint16x8_t *const sum) { const uint8x16_t r = vld1q_u8(ref_ptr); *sum = vabal_u8(*sum, vget_low_u8(src_ptr), vget_low_u8(r)); *sum = vabal_u8(*sum, vget_high_u8(src_ptr), vget_high_u8(r)); } static INLINE void sad16x_4d(const uint8_t *src_ptr, int src_stride, const uint8_t *const ref_array[4], int ref_stride, uint32_t *res, const int height) { int i, j; const uint8_t *ref_loop[4] = { ref_array[0], ref_array[1], ref_array[2], ref_array[3] }; uint16x8_t sum[4] = { vdupq_n_u16(0), vdupq_n_u16(0), vdupq_n_u16(0), vdupq_n_u16(0) }; for (i = 0; i < height; ++i) { const uint8x16_t s = vld1q_u8(src_ptr); src_ptr += src_stride; for (j = 0; j < 4; ++j) { sad16_neon(ref_loop[j], s, &sum[j]); ref_loop[j] += ref_stride; } } sad_512_pel_final_neon(sum, res); } void vpx_sad16x8x4d_neon(const uint8_t *src_ptr, int src_stride, const uint8_t *const ref_array[4], int ref_stride, uint32_t *res) { sad16x_4d(src_ptr, src_stride, ref_array, ref_stride, res, 8); } void vpx_sad16x16x4d_neon(const uint8_t *src_ptr, int src_stride, const uint8_t *const ref_array[4], int ref_stride, uint32_t *res) { sad16x_4d(src_ptr, src_stride, ref_array, ref_stride, res, 16); } void vpx_sad16x32x4d_neon(const uint8_t *src_ptr, int src_stride, const uint8_t *const ref_array[4], int ref_stride, uint32_t *res) { sad16x_4d(src_ptr, src_stride, ref_array, ref_stride, res, 32); } //////////////////////////////////////////////////////////////////////////////// static INLINE void sad32x_4d(const uint8_t *src_ptr, int src_stride, const uint8_t *const ref_array[4], int ref_stride, const int height, uint16x8_t *const sum) { int i; const uint8_t *ref_loop[4] = { ref_array[0], ref_array[1], ref_array[2], ref_array[3] }; sum[0] = sum[1] = sum[2] = sum[3] = vdupq_n_u16(0); for (i = 0; i < height; ++i) { uint8x16_t s; s = vld1q_u8(src_ptr + 0 * 16); sad16_neon(ref_loop[0] + 0 * 16, s, &sum[0]); sad16_neon(ref_loop[1] + 0 * 16, s, &sum[1]); sad16_neon(ref_loop[2] + 0 * 16, s, &sum[2]); sad16_neon(ref_loop[3] + 0 * 16, s, &sum[3]); s = vld1q_u8(src_ptr + 1 * 16); sad16_neon(ref_loop[0] + 1 * 16, s, &sum[0]); sad16_neon(ref_loop[1] + 1 * 16, s, &sum[1]); sad16_neon(ref_loop[2] + 1 * 16, s, &sum[2]); sad16_neon(ref_loop[3] + 1 * 16, s, &sum[3]); src_ptr += src_stride; ref_loop[0] += ref_stride; ref_loop[1] += ref_stride; ref_loop[2] += ref_stride; ref_loop[3] += ref_stride; } } void vpx_sad32x16x4d_neon(const uint8_t *src_ptr, int src_stride, const uint8_t *const ref_array[4], int ref_stride, uint32_t *res) { uint16x8_t sum[4]; sad32x_4d(src_ptr, src_stride, ref_array, ref_stride, 16, sum); sad_512_pel_final_neon(sum, res); } void vpx_sad32x32x4d_neon(const uint8_t *src_ptr, int src_stride, const uint8_t *const ref_array[4], int ref_stride, uint32_t *res) { uint16x8_t sum[4]; sad32x_4d(src_ptr, src_stride, ref_array, ref_stride, 32, sum); sad_1024_pel_final_neon(sum, res); } void vpx_sad32x64x4d_neon(const uint8_t *src_ptr, int src_stride, const uint8_t *const ref_array[4], int ref_stride, uint32_t *res) { uint16x8_t sum[4]; sad32x_4d(src_ptr, src_stride, ref_array, ref_stride, 64, sum); sad_2048_pel_final_neon(sum, res); } //////////////////////////////////////////////////////////////////////////////// void vpx_sad64x32x4d_neon(const uint8_t *src_ptr, int src_stride, const uint8_t *const ref_array[4], int ref_stride, uint32_t *res) { int i; const uint8_t *ref_loop[4] = { ref_array[0], ref_array[1], ref_array[2], ref_array[3] }; uint16x8_t sum[4] = { vdupq_n_u16(0), vdupq_n_u16(0), vdupq_n_u16(0), vdupq_n_u16(0) }; for (i = 0; i < 32; ++i) { uint8x16_t s; s = vld1q_u8(src_ptr + 0 * 16); sad16_neon(ref_loop[0] + 0 * 16, s, &sum[0]); sad16_neon(ref_loop[1] + 0 * 16, s, &sum[1]); sad16_neon(ref_loop[2] + 0 * 16, s, &sum[2]); sad16_neon(ref_loop[3] + 0 * 16, s, &sum[3]); s = vld1q_u8(src_ptr + 1 * 16); sad16_neon(ref_loop[0] + 1 * 16, s, &sum[0]); sad16_neon(ref_loop[1] + 1 * 16, s, &sum[1]); sad16_neon(ref_loop[2] + 1 * 16, s, &sum[2]); sad16_neon(ref_loop[3] + 1 * 16, s, &sum[3]); s = vld1q_u8(src_ptr + 2 * 16); sad16_neon(ref_loop[0] + 2 * 16, s, &sum[0]); sad16_neon(ref_loop[1] + 2 * 16, s, &sum[1]); sad16_neon(ref_loop[2] + 2 * 16, s, &sum[2]); sad16_neon(ref_loop[3] + 2 * 16, s, &sum[3]); s = vld1q_u8(src_ptr + 3 * 16); sad16_neon(ref_loop[0] + 3 * 16, s, &sum[0]); sad16_neon(ref_loop[1] + 3 * 16, s, &sum[1]); sad16_neon(ref_loop[2] + 3 * 16, s, &sum[2]); sad16_neon(ref_loop[3] + 3 * 16, s, &sum[3]); src_ptr += src_stride; ref_loop[0] += ref_stride; ref_loop[1] += ref_stride; ref_loop[2] += ref_stride; ref_loop[3] += ref_stride; } sad_2048_pel_final_neon(sum, res); } void vpx_sad64x64x4d_neon(const uint8_t *src_ptr, int src_stride, const uint8_t *const ref_array[4], int ref_stride, uint32_t *res) { int i; const uint8_t *ref_loop[4] = { ref_array[0], ref_array[1], ref_array[2], ref_array[3] }; uint16x8_t sum[8] = { vdupq_n_u16(0), vdupq_n_u16(0), vdupq_n_u16(0), vdupq_n_u16(0), vdupq_n_u16(0), vdupq_n_u16(0), vdupq_n_u16(0), vdupq_n_u16(0) }; for (i = 0; i < 64; ++i) { uint8x16_t s; s = vld1q_u8(src_ptr + 0 * 16); sad16_neon(ref_loop[0] + 0 * 16, s, &sum[0]); sad16_neon(ref_loop[1] + 0 * 16, s, &sum[2]); sad16_neon(ref_loop[2] + 0 * 16, s, &sum[4]); sad16_neon(ref_loop[3] + 0 * 16, s, &sum[6]); s = vld1q_u8(src_ptr + 1 * 16); sad16_neon(ref_loop[0] + 1 * 16, s, &sum[0]); sad16_neon(ref_loop[1] + 1 * 16, s, &sum[2]); sad16_neon(ref_loop[2] + 1 * 16, s, &sum[4]); sad16_neon(ref_loop[3] + 1 * 16, s, &sum[6]); s = vld1q_u8(src_ptr + 2 * 16); sad16_neon(ref_loop[0] + 2 * 16, s, &sum[1]); sad16_neon(ref_loop[1] + 2 * 16, s, &sum[3]); sad16_neon(ref_loop[2] + 2 * 16, s, &sum[5]); sad16_neon(ref_loop[3] + 2 * 16, s, &sum[7]); s = vld1q_u8(src_ptr + 3 * 16); sad16_neon(ref_loop[0] + 3 * 16, s, &sum[1]); sad16_neon(ref_loop[1] + 3 * 16, s, &sum[3]); sad16_neon(ref_loop[2] + 3 * 16, s, &sum[5]); sad16_neon(ref_loop[3] + 3 * 16, s, &sum[7]); src_ptr += src_stride; ref_loop[0] += ref_stride; ref_loop[1] += ref_stride; ref_loop[2] += ref_stride; ref_loop[3] += ref_stride; } sad_4096_pel_final_neon(sum, res); }