| /* |
| * Copyright (c) 2017, Alliance for Open Media. All rights reserved |
| * |
| * This source code is subject to the terms of the BSD 2 Clause License and |
| * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License |
| * was not distributed with this source code in the LICENSE file, you can |
| * obtain it at www.aomedia.org/license/software. If the Alliance for Open |
| * Media Patent License 1.0 was not distributed with this source code in the |
| * PATENTS file, you can obtain it at www.aomedia.org/license/patent. |
| */ |
| |
| #include <immintrin.h> |
| |
| #include "config/av1_rtcd.h" |
| |
| #include "aom_dsp/x86/convolve_avx2.h" |
| #include "aom_dsp/x86/convolve_common_intrin.h" |
| #include "aom_dsp/aom_dsp_common.h" |
| #include "aom_dsp/aom_filter.h" |
| #include "aom_dsp/x86/synonyms.h" |
| #include "av1/common/convolve.h" |
| |
| void av1_convolve_2d_sr_avx2(const uint8_t *src, int src_stride, uint8_t *dst, |
| int dst_stride, int w, int h, |
| const InterpFilterParams *filter_params_x, |
| const InterpFilterParams *filter_params_y, |
| const int subpel_x_qn, const int subpel_y_qn, |
| ConvolveParams *conv_params) { |
| const int bd = 8; |
| int im_stride = 8; |
| int i, is_horiz_4tap = 0, is_vert_4tap = 0; |
| DECLARE_ALIGNED(32, int16_t, im_block[(MAX_SB_SIZE + MAX_FILTER_TAP) * 8]); |
| const int bits = |
| FILTER_BITS * 2 - conv_params->round_0 - conv_params->round_1; |
| const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0; |
| |
| assert(conv_params->round_0 > 0); |
| |
| const __m256i round_const_h = _mm256_set1_epi16( |
| ((1 << (conv_params->round_0 - 1)) >> 1) + (1 << (bd + FILTER_BITS - 2))); |
| const __m128i round_shift_h = _mm_cvtsi32_si128(conv_params->round_0 - 1); |
| |
| const __m256i sum_round_v = _mm256_set1_epi32( |
| (1 << offset_bits) + ((1 << conv_params->round_1) >> 1)); |
| const __m128i sum_shift_v = _mm_cvtsi32_si128(conv_params->round_1); |
| |
| const __m256i round_const_v = _mm256_set1_epi32( |
| ((1 << bits) >> 1) - (1 << (offset_bits - conv_params->round_1)) - |
| ((1 << (offset_bits - conv_params->round_1)) >> 1)); |
| const __m128i round_shift_v = _mm_cvtsi32_si128(bits); |
| |
| __m256i filt[4], coeffs_h[4], coeffs_v[4]; |
| |
| filt[0] = _mm256_load_si256((__m256i const *)(filt_global_avx2)); |
| filt[1] = _mm256_load_si256((__m256i const *)(filt_global_avx2 + 32)); |
| |
| prepare_coeffs_lowbd(filter_params_x, subpel_x_qn, coeffs_h); |
| prepare_coeffs(filter_params_y, subpel_y_qn, coeffs_v); |
| |
| // Condition for checking valid horz_filt taps |
| if (!(_mm256_extract_epi32(_mm256_or_si256(coeffs_h[0], coeffs_h[3]), 0))) |
| is_horiz_4tap = 1; |
| |
| // Condition for checking valid vert_filt taps |
| if (!(_mm256_extract_epi32(_mm256_or_si256(coeffs_v[0], coeffs_v[3]), 0))) |
| is_vert_4tap = 1; |
| |
| // horz_filt as 4 tap and vert_filt as 8 tap |
| if (is_horiz_4tap) { |
| int im_h = h + filter_params_y->taps - 1; |
| const int fo_vert = filter_params_y->taps / 2 - 1; |
| const int fo_horiz = 1; |
| const uint8_t *const src_ptr = src - fo_vert * src_stride - fo_horiz; |
| |
| // horz-filter |
| for (int j = 0; j < w; j += 8) { |
| for (i = 0; i < (im_h - 2); i += 2) { |
| __m256i data = _mm256_castsi128_si256( |
| _mm_loadu_si128((__m128i *)&src_ptr[(i * src_stride) + j])); |
| |
| // Load the next line |
| data = _mm256_inserti128_si256( |
| data, |
| _mm_loadu_si128( |
| (__m128i *)&src_ptr[(i * src_stride) + j + src_stride]), |
| 1); |
| __m256i res = convolve_lowbd_x_4tap(data, coeffs_h + 1, filt); |
| |
| res = _mm256_sra_epi16(_mm256_add_epi16(res, round_const_h), |
| round_shift_h); |
| _mm256_store_si256((__m256i *)&im_block[i * im_stride], res); |
| } |
| |
| __m256i data_1 = _mm256_castsi128_si256( |
| _mm_loadu_si128((__m128i *)&src_ptr[(i * src_stride) + j])); |
| |
| __m256i res = convolve_lowbd_x_4tap(data_1, coeffs_h + 1, filt); |
| res = |
| _mm256_sra_epi16(_mm256_add_epi16(res, round_const_h), round_shift_h); |
| _mm256_store_si256((__m256i *)&im_block[i * im_stride], res); |
| |
| // vert filter |
| CONVOLVE_SR_VERTICAL_FILTER_8TAP; |
| } |
| } else if (is_vert_4tap) { |
| int im_h = h + 3; |
| const int fo_vert = 1; |
| const int fo_horiz = filter_params_x->taps / 2 - 1; |
| const uint8_t *const src_ptr = src - fo_vert * src_stride - fo_horiz; |
| |
| filt[2] = _mm256_load_si256((__m256i const *)(filt_global_avx2 + 32 * 2)); |
| filt[3] = _mm256_load_si256((__m256i const *)(filt_global_avx2 + 32 * 3)); |
| |
| for (int j = 0; j < w; j += 8) { |
| // horz_filter |
| CONVOLVE_SR_HORIZONTAL_FILTER_8TAP; |
| // vert_filter |
| __m256i s[6]; |
| __m256i src_0 = _mm256_loadu_si256((__m256i *)(im_block + 0 * im_stride)); |
| __m256i src_1 = _mm256_loadu_si256((__m256i *)(im_block + 1 * im_stride)); |
| __m256i src_2 = _mm256_loadu_si256((__m256i *)(im_block + 2 * im_stride)); |
| __m256i src_3 = _mm256_loadu_si256((__m256i *)(im_block + 3 * im_stride)); |
| |
| s[0] = _mm256_unpacklo_epi16(src_0, src_1); |
| s[1] = _mm256_unpacklo_epi16(src_2, src_3); |
| s[3] = _mm256_unpackhi_epi16(src_0, src_1); |
| s[4] = _mm256_unpackhi_epi16(src_2, src_3); |
| |
| for (i = 0; i < h; i += 2) { |
| const int16_t *data = &im_block[i * im_stride]; |
| |
| const __m256i s4 = |
| _mm256_loadu_si256((__m256i *)(data + 4 * im_stride)); |
| const __m256i s5 = |
| _mm256_loadu_si256((__m256i *)(data + 5 * im_stride)); |
| |
| s[2] = _mm256_unpacklo_epi16(s4, s5); |
| s[5] = _mm256_unpackhi_epi16(s4, s5); |
| |
| __m256i res_a = convolve_4tap(s, coeffs_v + 1); |
| __m256i res_b = convolve_4tap(s + 3, coeffs_v + 1); |
| |
| // Combine V round and 2F-H-V round into a single rounding |
| res_a = |
| _mm256_sra_epi32(_mm256_add_epi32(res_a, sum_round_v), sum_shift_v); |
| res_b = |
| _mm256_sra_epi32(_mm256_add_epi32(res_b, sum_round_v), sum_shift_v); |
| |
| const __m256i res_a_round = _mm256_sra_epi32( |
| _mm256_add_epi32(res_a, round_const_v), round_shift_v); |
| const __m256i res_b_round = _mm256_sra_epi32( |
| _mm256_add_epi32(res_b, round_const_v), round_shift_v); |
| |
| /* rounding code */ |
| // 16 bit conversion |
| const __m256i res_16bit = _mm256_packs_epi32(res_a_round, res_b_round); |
| // 8 bit conversion and saturation to uint8 |
| const __m256i res_8b = _mm256_packus_epi16(res_16bit, res_16bit); |
| |
| const __m128i res_0 = _mm256_castsi256_si128(res_8b); |
| const __m128i res_1 = _mm256_extracti128_si256(res_8b, 1); |
| |
| // Store values into the destination buffer |
| __m128i *const p_0 = (__m128i *)&dst[i * dst_stride + j]; |
| __m128i *const p_1 = (__m128i *)&dst[i * dst_stride + j + dst_stride]; |
| if (w - j > 4) { |
| _mm_storel_epi64(p_0, res_0); |
| _mm_storel_epi64(p_1, res_1); |
| } else if (w == 4) { |
| xx_storel_32(p_0, res_0); |
| xx_storel_32(p_1, res_1); |
| } else { |
| *(uint16_t *)p_0 = _mm_cvtsi128_si32(res_0); |
| *(uint16_t *)p_1 = _mm_cvtsi128_si32(res_1); |
| } |
| |
| s[0] = s[1]; |
| s[1] = s[2]; |
| s[3] = s[4]; |
| s[4] = s[5]; |
| } |
| } |
| } else { |
| int j; |
| int im_h = h + filter_params_y->taps - 1; |
| const int fo_vert = filter_params_y->taps / 2 - 1; |
| const int fo_horiz = filter_params_x->taps / 2 - 1; |
| const uint8_t *const src_ptr = src - fo_vert * src_stride - fo_horiz; |
| |
| filt[2] = _mm256_load_si256((__m256i const *)(filt_global_avx2 + 32 * 2)); |
| filt[3] = _mm256_load_si256((__m256i const *)(filt_global_avx2 + 32 * 3)); |
| |
| for (j = 0; j < w; j += 8) { |
| CONVOLVE_SR_HORIZONTAL_FILTER_8TAP; |
| |
| CONVOLVE_SR_VERTICAL_FILTER_8TAP; |
| } |
| } |
| } |
| |
| static INLINE void copy_128(const uint8_t *src, uint8_t *dst) { |
| __m256i s[4]; |
| s[0] = _mm256_loadu_si256((__m256i *)(src + 0 * 32)); |
| s[1] = _mm256_loadu_si256((__m256i *)(src + 1 * 32)); |
| s[2] = _mm256_loadu_si256((__m256i *)(src + 2 * 32)); |
| s[3] = _mm256_loadu_si256((__m256i *)(src + 3 * 32)); |
| _mm256_storeu_si256((__m256i *)(dst + 0 * 32), s[0]); |
| _mm256_storeu_si256((__m256i *)(dst + 1 * 32), s[1]); |
| _mm256_storeu_si256((__m256i *)(dst + 2 * 32), s[2]); |
| _mm256_storeu_si256((__m256i *)(dst + 3 * 32), s[3]); |
| } |
| |
| void av1_convolve_2d_copy_sr_avx2(const uint8_t *src, int src_stride, |
| uint8_t *dst, int dst_stride, int w, int h, |
| const InterpFilterParams *filter_params_x, |
| const InterpFilterParams *filter_params_y, |
| const int subpel_x_qn, const int subpel_y_qn, |
| ConvolveParams *conv_params) { |
| (void)filter_params_x; |
| (void)filter_params_y; |
| (void)subpel_x_qn; |
| (void)subpel_y_qn; |
| (void)conv_params; |
| |
| if (w >= 16) { |
| assert(!((intptr_t)dst % 16)); |
| assert(!(dst_stride % 16)); |
| } |
| |
| if (w == 2) { |
| do { |
| memmove(dst, src, 2 * sizeof(*src)); |
| src += src_stride; |
| dst += dst_stride; |
| memmove(dst, src, 2 * sizeof(*src)); |
| src += src_stride; |
| dst += dst_stride; |
| h -= 2; |
| } while (h); |
| } else if (w == 4) { |
| do { |
| memmove(dst, src, 4 * sizeof(*src)); |
| src += src_stride; |
| dst += dst_stride; |
| memmove(dst, src, 4 * sizeof(*src)); |
| src += src_stride; |
| dst += dst_stride; |
| h -= 2; |
| } while (h); |
| } else if (w == 8) { |
| do { |
| __m128i s[2]; |
| s[0] = _mm_loadl_epi64((__m128i *)src); |
| src += src_stride; |
| s[1] = _mm_loadl_epi64((__m128i *)src); |
| src += src_stride; |
| _mm_storel_epi64((__m128i *)dst, s[0]); |
| dst += dst_stride; |
| _mm_storel_epi64((__m128i *)dst, s[1]); |
| dst += dst_stride; |
| h -= 2; |
| } while (h); |
| } else if (w == 16) { |
| do { |
| __m128i s[2]; |
| s[0] = _mm_loadu_si128((__m128i *)src); |
| src += src_stride; |
| s[1] = _mm_loadu_si128((__m128i *)src); |
| src += src_stride; |
| _mm_store_si128((__m128i *)dst, s[0]); |
| dst += dst_stride; |
| _mm_store_si128((__m128i *)dst, s[1]); |
| dst += dst_stride; |
| h -= 2; |
| } while (h); |
| } else if (w == 32) { |
| do { |
| __m256i s[2]; |
| s[0] = _mm256_loadu_si256((__m256i *)src); |
| src += src_stride; |
| s[1] = _mm256_loadu_si256((__m256i *)src); |
| src += src_stride; |
| _mm256_storeu_si256((__m256i *)dst, s[0]); |
| dst += dst_stride; |
| _mm256_storeu_si256((__m256i *)dst, s[1]); |
| dst += dst_stride; |
| h -= 2; |
| } while (h); |
| } else if (w == 64) { |
| do { |
| __m256i s[4]; |
| s[0] = _mm256_loadu_si256((__m256i *)(src + 0 * 32)); |
| s[1] = _mm256_loadu_si256((__m256i *)(src + 1 * 32)); |
| src += src_stride; |
| s[2] = _mm256_loadu_si256((__m256i *)(src + 0 * 32)); |
| s[3] = _mm256_loadu_si256((__m256i *)(src + 1 * 32)); |
| src += src_stride; |
| _mm256_storeu_si256((__m256i *)(dst + 0 * 32), s[0]); |
| _mm256_storeu_si256((__m256i *)(dst + 1 * 32), s[1]); |
| dst += dst_stride; |
| _mm256_storeu_si256((__m256i *)(dst + 0 * 32), s[2]); |
| _mm256_storeu_si256((__m256i *)(dst + 1 * 32), s[3]); |
| dst += dst_stride; |
| h -= 2; |
| } while (h); |
| } else { |
| do { |
| copy_128(src, dst); |
| src += src_stride; |
| dst += dst_stride; |
| copy_128(src, dst); |
| src += src_stride; |
| dst += dst_stride; |
| h -= 2; |
| } while (h); |
| } |
| } |