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/*
* 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 "third_party/SVT-AV1/convolve_2d_avx2.h"
#include "aom_dsp/x86/convolve_avx2.h"
#include "aom_dsp/aom_filter.h"
#include "aom_dsp/x86/synonyms.h"
#include "av1/common/convolve.h"
static void convolve_2d_sr_general_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) {
if (filter_params_x->taps > 8) {
const int bd = 8;
int im_stride = 8, i;
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_h12 = _mm256_set1_epi32(
((1 << (conv_params->round_0)) >> 1) + (1 << (bd + FILTER_BITS - 1)));
const __m128i round_shift_h12 = _mm_cvtsi32_si128(conv_params->round_0);
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 coeffs_h[6] = { 0 }, coeffs_v[6] = { 0 };
int horiz_tap = 12;
int vert_tap = 12;
prepare_coeffs_12taps(filter_params_x, subpel_x_qn, coeffs_h);
prepare_coeffs_12taps(filter_params_y, subpel_y_qn, coeffs_v);
int im_h = h + vert_tap - 1;
const int fo_vert = vert_tap / 2 - 1;
const int fo_horiz = horiz_tap / 2 - 1;
const uint8_t *const src_ptr = src - fo_vert * src_stride - fo_horiz;
for (int j = 0; j < w; j += 8) {
CONVOLVE_SR_HORIZONTAL_FILTER_12TAP
CONVOLVE_SR_VERTICAL_FILTER_12TAP
}
} else {
const int bd = 8;
int im_stride = 8, i;
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];
prepare_coeffs_lowbd(filter_params_x, subpel_x_qn, coeffs_h);
prepare_coeffs(filter_params_y, subpel_y_qn, coeffs_v);
int horiz_tap = get_filter_tap(filter_params_x, subpel_x_qn);
int vert_tap = get_filter_tap(filter_params_y, subpel_y_qn);
if (horiz_tap == 6)
prepare_coeffs_6t_lowbd(filter_params_x, subpel_x_qn, coeffs_h);
else
prepare_coeffs_lowbd(filter_params_x, subpel_x_qn, coeffs_h);
if (vert_tap == 6)
prepare_coeffs_6t(filter_params_y, subpel_y_qn, coeffs_v);
else
prepare_coeffs(filter_params_y, subpel_y_qn, coeffs_v);
int im_h = h + vert_tap - 1;
const int fo_vert = vert_tap / 2 - 1;
const int fo_horiz = horiz_tap / 2 - 1;
const uint8_t *const src_ptr = src - fo_vert * src_stride - fo_horiz;
filt[0] = _mm256_load_si256((__m256i const *)filt1_global_avx2);
filt[1] = _mm256_load_si256((__m256i const *)filt2_global_avx2);
filt[2] = _mm256_load_si256((__m256i const *)filt3_global_avx2);
filt[3] = _mm256_load_si256((__m256i const *)filt4_global_avx2);
for (int j = 0; j < w; j += 8) {
if (horiz_tap == 4) {
CONVOLVE_SR_HORIZONTAL_FILTER_4TAP
} else if (horiz_tap == 6) {
CONVOLVE_SR_HORIZONTAL_FILTER_6TAP
} else {
CONVOLVE_SR_HORIZONTAL_FILTER_8TAP
}
if (vert_tap == 4) {
CONVOLVE_SR_VERTICAL_FILTER_4TAP
} else if (vert_tap == 6) {
CONVOLVE_SR_VERTICAL_FILTER_6TAP
} else {
CONVOLVE_SR_VERTICAL_FILTER_8TAP
}
}
}
}
void av1_convolve_2d_sr_avx2(
const uint8_t *src, int32_t src_stride, uint8_t *dst, int32_t dst_stride,
int32_t w, int32_t h, const InterpFilterParams *filter_params_x,
const InterpFilterParams *filter_params_y, const int32_t subpel_x_q4,
const int32_t subpel_y_q4, ConvolveParams *conv_params) {
const int32_t tap_x = get_filter_tap(filter_params_x, subpel_x_q4);
const int32_t tap_y = get_filter_tap(filter_params_y, subpel_y_q4);
const bool use_general = (tap_x == 12 || tap_y == 12);
if (use_general) {
convolve_2d_sr_general_avx2(src, src_stride, dst, dst_stride, w, h,
filter_params_x, filter_params_y, subpel_x_q4,
subpel_y_q4, conv_params);
} else {
av1_convolve_2d_sr_specialized_avx2(src, src_stride, dst, dst_stride, w, h,
filter_params_x, filter_params_y,
subpel_x_q4, subpel_y_q4, conv_params);
}
}
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