ref: 8d85e79d6ed90db4c9ab56b72d54e8fd625fdb07
dir: /vpx_dsp/ppc/sad_vsx.c/
/* * Copyright (c) 2017 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 <stdlib.h> #include "./vpx_dsp_rtcd.h" #include "vpx_dsp/ppc/types_vsx.h" #include "vpx/vpx_integer.h" #include "vpx_ports/mem.h" #define PROCESS16(offset) \ v_a = vec_vsx_ld(offset, a); \ v_b = vec_vsx_ld(offset, b); \ v_abs = vec_absd(v_a, v_b); \ v_sad = vec_sum4s(v_abs, v_sad); #define SAD8(height) \ unsigned int vpx_sad8x##height##_vsx(const uint8_t *a, int a_stride, \ const uint8_t *b, int b_stride) { \ int y = 0; \ uint8x16_t v_a, v_b, v_abs; \ uint32x4_t v_sad = vec_zeros_u32; \ \ do { \ PROCESS16(0) \ \ a += a_stride; \ b += b_stride; \ y++; \ } while (y < height); \ \ return v_sad[1] + v_sad[0]; \ } #define SAD16(height) \ unsigned int vpx_sad16x##height##_vsx(const uint8_t *a, int a_stride, \ const uint8_t *b, int b_stride) { \ int y = 0; \ uint8x16_t v_a, v_b, v_abs; \ uint32x4_t v_sad = vec_zeros_u32; \ \ do { \ PROCESS16(0); \ \ a += a_stride; \ b += b_stride; \ y++; \ } while (y < height); \ \ return v_sad[3] + v_sad[2] + v_sad[1] + v_sad[0]; \ } #define SAD32(height) \ unsigned int vpx_sad32x##height##_vsx(const uint8_t *a, int a_stride, \ const uint8_t *b, int b_stride) { \ int y = 0; \ uint8x16_t v_a, v_b, v_abs; \ uint32x4_t v_sad = vec_zeros_u32; \ \ do { \ PROCESS16(0); \ PROCESS16(16); \ \ a += a_stride; \ b += b_stride; \ y++; \ } while (y < height); \ \ return v_sad[3] + v_sad[2] + v_sad[1] + v_sad[0]; \ } #define SAD64(height) \ unsigned int vpx_sad64x##height##_vsx(const uint8_t *a, int a_stride, \ const uint8_t *b, int b_stride) { \ int y = 0; \ uint8x16_t v_a, v_b, v_abs; \ uint32x4_t v_sad = vec_zeros_u32; \ \ do { \ PROCESS16(0); \ PROCESS16(16); \ PROCESS16(32); \ PROCESS16(48); \ \ a += a_stride; \ b += b_stride; \ y++; \ } while (y < height); \ \ return v_sad[3] + v_sad[2] + v_sad[1] + v_sad[0]; \ } SAD8(4); SAD8(8); SAD8(16); SAD16(8); SAD16(16); SAD16(32); SAD32(16); SAD32(32); SAD32(64); SAD64(32); SAD64(64); #define SAD16AVG(height) \ unsigned int vpx_sad16x##height##_avg_vsx( \ const uint8_t *src, int src_stride, const uint8_t *ref, int ref_stride, \ const uint8_t *second_pred) { \ DECLARE_ALIGNED(16, uint8_t, comp_pred[16 * (height)]); \ vpx_comp_avg_pred_vsx(comp_pred, second_pred, 16, height, ref, \ ref_stride); \ \ return vpx_sad16x##height##_vsx(src, src_stride, comp_pred, 16); \ } #define SAD32AVG(height) \ unsigned int vpx_sad32x##height##_avg_vsx( \ const uint8_t *src, int src_stride, const uint8_t *ref, int ref_stride, \ const uint8_t *second_pred) { \ DECLARE_ALIGNED(32, uint8_t, comp_pred[32 * (height)]); \ vpx_comp_avg_pred_vsx(comp_pred, second_pred, 32, height, ref, \ ref_stride); \ \ return vpx_sad32x##height##_vsx(src, src_stride, comp_pred, 32); \ } #define SAD64AVG(height) \ unsigned int vpx_sad64x##height##_avg_vsx( \ const uint8_t *src, int src_stride, const uint8_t *ref, int ref_stride, \ const uint8_t *second_pred) { \ DECLARE_ALIGNED(64, uint8_t, comp_pred[64 * (height)]); \ vpx_comp_avg_pred_vsx(comp_pred, second_pred, 64, height, ref, \ ref_stride); \ return vpx_sad64x##height##_vsx(src, src_stride, comp_pred, 64); \ } SAD16AVG(8); SAD16AVG(16); SAD16AVG(32); SAD32AVG(16); SAD32AVG(32); SAD32AVG(64); SAD64AVG(32); SAD64AVG(64); #define PROCESS16_4D(offset, ref, v_h, v_l) \ v_b = vec_vsx_ld(offset, ref); \ v_bh = unpack_to_s16_h(v_b); \ v_bl = unpack_to_s16_l(v_b); \ v_subh = vec_sub(v_h, v_bh); \ v_subl = vec_sub(v_l, v_bl); \ v_absh = vec_abs(v_subh); \ v_absl = vec_abs(v_subl); \ v_sad = vec_sum4s(v_absh, v_sad); \ v_sad = vec_sum4s(v_absl, v_sad); #define UNPACK_SRC(offset, srcv_h, srcv_l) \ v_a = vec_vsx_ld(offset, src); \ srcv_h = unpack_to_s16_h(v_a); \ srcv_l = unpack_to_s16_l(v_a); #define SAD16_4D(height) \ void vpx_sad16x##height##x4d_vsx(const uint8_t *src, int src_stride, \ const uint8_t *const ref_array[], \ int ref_stride, uint32_t *sad_array) { \ int i; \ int y; \ unsigned int sad[4]; \ uint8x16_t v_a, v_b; \ int16x8_t v_ah, v_al, v_bh, v_bl, v_absh, v_absl, v_subh, v_subl; \ \ for (i = 0; i < 4; i++) sad_array[i] = 0; \ \ for (y = 0; y < height; y++) { \ UNPACK_SRC(y *src_stride, v_ah, v_al); \ for (i = 0; i < 4; i++) { \ int32x4_t v_sad = vec_splat_s32(0); \ PROCESS16_4D(y *ref_stride, ref_array[i], v_ah, v_al); \ \ vec_vsx_st((uint32x4_t)v_sad, 0, sad); \ sad_array[i] += (sad[3] + sad[2] + sad[1] + sad[0]); \ } \ } \ } #define SAD32_4D(height) \ void vpx_sad32x##height##x4d_vsx(const uint8_t *src, int src_stride, \ const uint8_t *const ref_array[], \ int ref_stride, uint32_t *sad_array) { \ int i; \ int y; \ unsigned int sad[4]; \ uint8x16_t v_a, v_b; \ int16x8_t v_ah1, v_al1, v_ah2, v_al2, v_bh, v_bl; \ int16x8_t v_absh, v_absl, v_subh, v_subl; \ \ for (i = 0; i < 4; i++) sad_array[i] = 0; \ \ for (y = 0; y < height; y++) { \ UNPACK_SRC(y *src_stride, v_ah1, v_al1); \ UNPACK_SRC(y *src_stride + 16, v_ah2, v_al2); \ for (i = 0; i < 4; i++) { \ int32x4_t v_sad = vec_splat_s32(0); \ PROCESS16_4D(y *ref_stride, ref_array[i], v_ah1, v_al1); \ PROCESS16_4D(y *ref_stride + 16, ref_array[i], v_ah2, v_al2); \ \ vec_vsx_st((uint32x4_t)v_sad, 0, sad); \ sad_array[i] += (sad[3] + sad[2] + sad[1] + sad[0]); \ } \ } \ } #define SAD64_4D(height) \ void vpx_sad64x##height##x4d_vsx(const uint8_t *src, int src_stride, \ const uint8_t *const ref_array[], \ int ref_stride, uint32_t *sad_array) { \ int i; \ int y; \ unsigned int sad[4]; \ uint8x16_t v_a, v_b; \ int16x8_t v_ah1, v_al1, v_ah2, v_al2, v_bh, v_bl; \ int16x8_t v_ah3, v_al3, v_ah4, v_al4; \ int16x8_t v_absh, v_absl, v_subh, v_subl; \ \ for (i = 0; i < 4; i++) sad_array[i] = 0; \ \ for (y = 0; y < height; y++) { \ UNPACK_SRC(y *src_stride, v_ah1, v_al1); \ UNPACK_SRC(y *src_stride + 16, v_ah2, v_al2); \ UNPACK_SRC(y *src_stride + 32, v_ah3, v_al3); \ UNPACK_SRC(y *src_stride + 48, v_ah4, v_al4); \ for (i = 0; i < 4; i++) { \ int32x4_t v_sad = vec_splat_s32(0); \ PROCESS16_4D(y *ref_stride, ref_array[i], v_ah1, v_al1); \ PROCESS16_4D(y *ref_stride + 16, ref_array[i], v_ah2, v_al2); \ PROCESS16_4D(y *ref_stride + 32, ref_array[i], v_ah3, v_al3); \ PROCESS16_4D(y *ref_stride + 48, ref_array[i], v_ah4, v_al4); \ \ vec_vsx_st((uint32x4_t)v_sad, 0, sad); \ sad_array[i] += (sad[3] + sad[2] + sad[1] + sad[0]); \ } \ } \ } SAD16_4D(8); SAD16_4D(16); SAD16_4D(32); SAD32_4D(16); SAD32_4D(32); SAD32_4D(64); SAD64_4D(32); SAD64_4D(64);