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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 <emmintrin.h>
#include "config/aom_dsp_rtcd.h"
#include "aom_dsp/aom_convolve.h"
#include "aom_dsp/aom_dsp_common.h"
#include "aom_dsp/aom_filter.h"
#include "aom_dsp/x86/convolve_common_intrin.h"
#include "av1/common/convolve.h"
static INLINE void prepare_coeffs(const InterpFilterParams *const filter_params,
const int subpel_q4,
__m128i *const coeffs /* [4] */) {
const int16_t *const y_filter = av1_get_interp_filter_subpel_kernel(
filter_params, subpel_q4 & SUBPEL_MASK);
const __m128i coeffs_y = _mm_loadu_si128((__m128i *)y_filter);
// coeffs 0 1 0 1 2 3 2 3
const __m128i tmp_0 = _mm_unpacklo_epi32(coeffs_y, coeffs_y);
// coeffs 4 5 4 5 6 7 6 7
const __m128i tmp_1 = _mm_unpackhi_epi32(coeffs_y, coeffs_y);
coeffs[0] = _mm_unpacklo_epi64(tmp_0, tmp_0); // coeffs 0 1 0 1 0 1 0 1
coeffs[1] = _mm_unpackhi_epi64(tmp_0, tmp_0); // coeffs 2 3 2 3 2 3 2 3
coeffs[2] = _mm_unpacklo_epi64(tmp_1, tmp_1); // coeffs 4 5 4 5 4 5 4 5
coeffs[3] = _mm_unpackhi_epi64(tmp_1, tmp_1); // coeffs 6 7 6 7 6 7 6 7
}
static INLINE __m128i convolve(const __m128i *const s,
const __m128i *const coeffs) {
const __m128i d0 = _mm_madd_epi16(s[0], coeffs[0]);
const __m128i d1 = _mm_madd_epi16(s[1], coeffs[1]);
const __m128i d2 = _mm_madd_epi16(s[2], coeffs[2]);
const __m128i d3 = _mm_madd_epi16(s[3], coeffs[3]);
const __m128i d = _mm_add_epi32(_mm_add_epi32(d0, d1), _mm_add_epi32(d2, d3));
return d;
}
static INLINE __m128i convolve_lo_x(const __m128i *const s,
const __m128i *const coeffs) {
__m128i ss[4];
ss[0] = _mm_unpacklo_epi8(s[0], _mm_setzero_si128());
ss[1] = _mm_unpacklo_epi8(s[1], _mm_setzero_si128());
ss[2] = _mm_unpacklo_epi8(s[2], _mm_setzero_si128());
ss[3] = _mm_unpacklo_epi8(s[3], _mm_setzero_si128());
return convolve(ss, coeffs);
}
static INLINE __m128i convolve_lo_y(const __m128i *const s,
const __m128i *const coeffs) {
__m128i ss[4];
ss[0] = _mm_unpacklo_epi8(s[0], _mm_setzero_si128());
ss[1] = _mm_unpacklo_epi8(s[2], _mm_setzero_si128());
ss[2] = _mm_unpacklo_epi8(s[4], _mm_setzero_si128());
ss[3] = _mm_unpacklo_epi8(s[6], _mm_setzero_si128());
return convolve(ss, coeffs);
}
static INLINE __m128i convolve_hi_y(const __m128i *const s,
const __m128i *const coeffs) {
__m128i ss[4];
ss[0] = _mm_unpackhi_epi8(s[0], _mm_setzero_si128());
ss[1] = _mm_unpackhi_epi8(s[2], _mm_setzero_si128());
ss[2] = _mm_unpackhi_epi8(s[4], _mm_setzero_si128());
ss[3] = _mm_unpackhi_epi8(s[6], _mm_setzero_si128());
return convolve(ss, coeffs);
}
void av1_convolve_y_sr_sse2(const uint8_t *src, int src_stride,
const uint8_t *dst, int dst_stride, int w, int h,
const InterpFilterParams *filter_params_x,
const InterpFilterParams *filter_params_y,
const int subpel_x_q4, const int subpel_y_q4,
ConvolveParams *conv_params) {
const int fo_vert = filter_params_y->taps / 2 - 1;
const uint8_t *src_ptr = src - fo_vert * src_stride;
const __m128i round_const = _mm_set1_epi32((1 << FILTER_BITS) >> 1);
const __m128i round_shift = _mm_cvtsi32_si128(FILTER_BITS);
__m128i coeffs[4];
(void)filter_params_x;
(void)subpel_x_q4;
(void)conv_params;
assert(conv_params->round_0 <= FILTER_BITS);
assert(((conv_params->round_0 + conv_params->round_1) <= (FILTER_BITS + 1)) ||
((conv_params->round_0 + conv_params->round_1) == (2 * FILTER_BITS)));
prepare_coeffs(filter_params_y, subpel_y_q4, coeffs);
if (w <= 4) {
__m128i s[8], src6, res, res_round, res16;
uint32_t res_int;
src6 = _mm_cvtsi32_si128(*(uint32_t *)(src_ptr + 6 * src_stride));
s[0] = _mm_unpacklo_epi8(
_mm_cvtsi32_si128(*(uint32_t *)(src_ptr + 0 * src_stride)),
_mm_cvtsi32_si128(*(uint32_t *)(src_ptr + 1 * src_stride)));
s[1] = _mm_unpacklo_epi8(
_mm_cvtsi32_si128(*(uint32_t *)(src_ptr + 1 * src_stride)),
_mm_cvtsi32_si128(*(uint32_t *)(src_ptr + 2 * src_stride)));
s[2] = _mm_unpacklo_epi8(
_mm_cvtsi32_si128(*(uint32_t *)(src_ptr + 2 * src_stride)),
_mm_cvtsi32_si128(*(uint32_t *)(src_ptr + 3 * src_stride)));
s[3] = _mm_unpacklo_epi8(
_mm_cvtsi32_si128(*(uint32_t *)(src_ptr + 3 * src_stride)),
_mm_cvtsi32_si128(*(uint32_t *)(src_ptr + 4 * src_stride)));
s[4] = _mm_unpacklo_epi8(
_mm_cvtsi32_si128(*(uint32_t *)(src_ptr + 4 * src_stride)),
_mm_cvtsi32_si128(*(uint32_t *)(src_ptr + 5 * src_stride)));
s[5] = _mm_unpacklo_epi8(
_mm_cvtsi32_si128(*(uint32_t *)(src_ptr + 5 * src_stride)), src6);
do {
s[6] = _mm_unpacklo_epi8(
src6, _mm_cvtsi32_si128(*(uint32_t *)(src_ptr + 7 * src_stride)));
src6 = _mm_cvtsi32_si128(*(uint32_t *)(src_ptr + 8 * src_stride));
s[7] = _mm_unpacklo_epi8(
_mm_cvtsi32_si128(*(uint32_t *)(src_ptr + 7 * src_stride)), src6);
res = convolve_lo_y(s + 0, coeffs);
res_round = _mm_sra_epi32(_mm_add_epi32(res, round_const), round_shift);
res16 = _mm_packs_epi32(res_round, res_round);
res_int = _mm_cvtsi128_si32(_mm_packus_epi16(res16, res16));
if (w == 2)
*(uint16_t *)dst = res_int;
else
*(uint32_t *)dst = res_int;
src_ptr += src_stride;
dst += dst_stride;
res = convolve_lo_y(s + 1, coeffs);
res_round = _mm_sra_epi32(_mm_add_epi32(res, round_const), round_shift);
res16 = _mm_packs_epi32(res_round, res_round);
res_int = _mm_cvtsi128_si32(_mm_packus_epi16(res16, res16));
if (w == 2)
*(uint16_t *)dst = res_int;
else
*(uint32_t *)dst = res_int;
src_ptr += src_stride;
dst += dst_stride;
s[0] = s[2];
s[1] = s[3];
s[2] = s[4];
s[3] = s[5];
s[4] = s[6];
s[5] = s[7];
h -= 2;
} while (h);
} else {
assert(!(w % 8));
int j = 0;
do {
__m128i s[8], src6, res_lo, res_hi;
__m128i res_lo_round, res_hi_round, res16, res;
const uint8_t *data = &src_ptr[j];
src6 = _mm_loadl_epi64((__m128i *)(data + 6 * src_stride));
s[0] = _mm_unpacklo_epi8(
_mm_loadl_epi64((__m128i *)(data + 0 * src_stride)),
_mm_loadl_epi64((__m128i *)(data + 1 * src_stride)));
s[1] = _mm_unpacklo_epi8(
_mm_loadl_epi64((__m128i *)(data + 1 * src_stride)),
_mm_loadl_epi64((__m128i *)(data + 2 * src_stride)));
s[2] = _mm_unpacklo_epi8(
_mm_loadl_epi64((__m128i *)(data + 2 * src_stride)),
_mm_loadl_epi64((__m128i *)(data + 3 * src_stride)));
s[3] = _mm_unpacklo_epi8(
_mm_loadl_epi64((__m128i *)(data + 3 * src_stride)),
_mm_loadl_epi64((__m128i *)(data + 4 * src_stride)));
s[4] = _mm_unpacklo_epi8(
_mm_loadl_epi64((__m128i *)(data + 4 * src_stride)),
_mm_loadl_epi64((__m128i *)(data + 5 * src_stride)));
s[5] = _mm_unpacklo_epi8(
_mm_loadl_epi64((__m128i *)(data + 5 * src_stride)), src6);
int i = 0;
do {
data = &src_ptr[i * src_stride + j];
s[6] = _mm_unpacklo_epi8(
src6, _mm_loadl_epi64((__m128i *)(data + 7 * src_stride)));
src6 = _mm_loadl_epi64((__m128i *)(data + 8 * src_stride));
s[7] = _mm_unpacklo_epi8(
_mm_loadl_epi64((__m128i *)(data + 7 * src_stride)), src6);
res_lo = convolve_lo_y(s, coeffs); // Filter low index pixels
res_hi = convolve_hi_y(s, coeffs); // Filter high index pixels
res_lo_round =
_mm_sra_epi32(_mm_add_epi32(res_lo, round_const), round_shift);
res_hi_round =
_mm_sra_epi32(_mm_add_epi32(res_hi, round_const), round_shift);
res16 = _mm_packs_epi32(res_lo_round, res_hi_round);
res = _mm_packus_epi16(res16, res16);
_mm_storel_epi64((__m128i *)(dst + i * dst_stride + j), res);
i++;
res_lo = convolve_lo_y(s + 1, coeffs); // Filter low index pixels
res_hi = convolve_hi_y(s + 1, coeffs); // Filter high index pixels
res_lo_round =
_mm_sra_epi32(_mm_add_epi32(res_lo, round_const), round_shift);
res_hi_round =
_mm_sra_epi32(_mm_add_epi32(res_hi, round_const), round_shift);
res16 = _mm_packs_epi32(res_lo_round, res_hi_round);
res = _mm_packus_epi16(res16, res16);
_mm_storel_epi64((__m128i *)(dst + i * dst_stride + j), res);
i++;
s[0] = s[2];
s[1] = s[3];
s[2] = s[4];
s[3] = s[5];
s[4] = s[6];
s[5] = s[7];
} while (i < h);
j += 8;
} while (j < w);
}
}
void av1_convolve_x_sr_sse2(const uint8_t *src, int src_stride,
const uint8_t *dst, int dst_stride, int w, int h,
const InterpFilterParams *filter_params_x,
const InterpFilterParams *filter_params_y,
const int subpel_x_q4, const int subpel_y_q4,
ConvolveParams *conv_params) {
const int fo_horiz = filter_params_x->taps / 2 - 1;
const uint8_t *src_ptr = src - fo_horiz;
const int bits = FILTER_BITS - conv_params->round_0;
const __m128i round_0_const =
_mm_set1_epi32((1 << conv_params->round_0) >> 1);
const __m128i round_const = _mm_set1_epi32((1 << bits) >> 1);
const __m128i round_0_shift = _mm_cvtsi32_si128(conv_params->round_0);
const __m128i round_shift = _mm_cvtsi32_si128(bits);
__m128i coeffs[4];
(void)filter_params_y;
(void)subpel_y_q4;
assert(bits >= 0);
assert((FILTER_BITS - conv_params->round_1) >= 0 ||
((conv_params->round_0 + conv_params->round_1) == 2 * FILTER_BITS));
prepare_coeffs(filter_params_x, subpel_x_q4, coeffs);
if (w <= 4) {
do {
const __m128i data = _mm_loadu_si128((__m128i *)src_ptr);
__m128i s[4];
s[0] = _mm_unpacklo_epi8(data, _mm_srli_si128(data, 1));
s[1] =
_mm_unpacklo_epi8(_mm_srli_si128(data, 2), _mm_srli_si128(data, 3));
s[2] =
_mm_unpacklo_epi8(_mm_srli_si128(data, 4), _mm_srli_si128(data, 5));
s[3] =
_mm_unpacklo_epi8(_mm_srli_si128(data, 6), _mm_srli_si128(data, 7));
const __m128i res_lo = convolve_lo_x(s, coeffs);
__m128i res_lo_round =
_mm_sra_epi32(_mm_add_epi32(res_lo, round_0_const), round_0_shift);
res_lo_round =
_mm_sra_epi32(_mm_add_epi32(res_lo_round, round_const), round_shift);
const __m128i res16 = _mm_packs_epi32(res_lo_round, res_lo_round);
const __m128i res = _mm_packus_epi16(res16, res16);
uint32_t r = _mm_cvtsi128_si32(res);
if (w == 2)
*(uint16_t *)dst = r;
else
*(uint32_t *)dst = r;
src_ptr += src_stride;
dst += dst_stride;
} while (--h);
} else {
assert(!(w % 8));
int i = 0;
do {
int j = 0;
do {
const __m128i data =
_mm_loadu_si128((__m128i *)&src_ptr[i * src_stride + j]);
__m128i s[4];
// Filter even-index pixels
s[0] = data;
s[1] = _mm_srli_si128(data, 2);
s[2] = _mm_srli_si128(data, 4);
s[3] = _mm_srli_si128(data, 6);
const __m128i res_even = convolve_lo_x(s, coeffs);
// Filter odd-index pixels
s[0] = _mm_srli_si128(data, 1);
s[1] = _mm_srli_si128(data, 3);
s[2] = _mm_srli_si128(data, 5);
s[3] = _mm_srli_si128(data, 7);
const __m128i res_odd = convolve_lo_x(s, coeffs);
// Rearrange pixels back into the order 0 ... 7
const __m128i res_lo = _mm_unpacklo_epi32(res_even, res_odd);
const __m128i res_hi = _mm_unpackhi_epi32(res_even, res_odd);
__m128i res_lo_round =
_mm_sra_epi32(_mm_add_epi32(res_lo, round_0_const), round_0_shift);
res_lo_round = _mm_sra_epi32(_mm_add_epi32(res_lo_round, round_const),
round_shift);
__m128i res_hi_round =
_mm_sra_epi32(_mm_add_epi32(res_hi, round_0_const), round_0_shift);
res_hi_round = _mm_sra_epi32(_mm_add_epi32(res_hi_round, round_const),
round_shift);
const __m128i res16 = _mm_packs_epi32(res_lo_round, res_hi_round);
const __m128i res = _mm_packus_epi16(res16, res16);
_mm_storel_epi64((__m128i *)(dst + i * dst_stride + j), res);
j += 8;
} while (j < w);
} while (++i < h);
}
}
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