av1/common/x86/convolve_sse2.c - aom - Git at Google

 /*
  * 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 "./aom_dsp_rtcd.h"
 #include "aom_dsp/aom_convolve.h"
 #include "aom_dsp/aom_dsp_common.h"
 #include "aom_dsp/aom_filter.h"
 #include "av1/common/convolve.h"

 void av1_convolve_y_sse2(const uint8_t *src, int src_stride, CONV_BUF_TYPE *dst,
                          int dst_stride, int w, int h,
                          InterpFilterParams *filter_params_x,
                          InterpFilterParams *filter_params_y,
                          const int subpel_x_q4, const int subpel_y_q4,
                          ConvolveParams *conv_params) {
   int i, j;
   const int fo_vert = filter_params_y->taps / 2 - 1;
   const int do_average = conv_params->do_average;
   const uint8_t *const src_ptr = src - fo_vert * src_stride;
   const int bits = FILTER_BITS - conv_params->round_0 - conv_params->round_1;
   const __m128i left_shift = _mm_cvtsi32_si128(bits);
   const __m128i zero = _mm_setzero_si128();

   (void)filter_params_x;
   (void)subpel_x_q4;

   const int16_t *y_filter = av1_get_interp_filter_subpel_kernel(
       *filter_params_y, subpel_y_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 1 0 1 0 1 0 1
   const __m128i coeff_01 = _mm_unpacklo_epi64(tmp_0, tmp_0);
   // coeffs 2 3 2 3 2 3 2 3
   const __m128i coeff_23 = _mm_unpackhi_epi64(tmp_0, tmp_0);
   // coeffs 4 5 4 5 4 5 4 5
   const __m128i coeff_45 = _mm_unpacklo_epi64(tmp_1, tmp_1);
   // coeffs 6 7 6 7 6 7 6 7
   const __m128i coeff_67 = _mm_unpackhi_epi64(tmp_1, tmp_1);

   for (i = 0; i < h; ++i) {
     for (j = 0; j < w; j += 8) {
       // Filter low index pixels
       const uint8_t *data = &src_ptr[i * src_stride + j];
       const __m128i src_01 = _mm_unpacklo_epi8(
           _mm_loadl_epi64((__m128i *)(data + 0 * src_stride)),
           _mm_loadl_epi64((__m128i *)(data + 1 * src_stride)));
       const __m128i src_23 = _mm_unpacklo_epi8(
           _mm_loadl_epi64((__m128i *)(data + 2 * src_stride)),
           _mm_loadl_epi64((__m128i *)(data + 3 * src_stride)));
       const __m128i src_45 = _mm_unpacklo_epi8(
           _mm_loadl_epi64((__m128i *)(data + 4 * src_stride)),
           _mm_loadl_epi64((__m128i *)(data + 5 * src_stride)));
       const __m128i src_67 = _mm_unpacklo_epi8(
           _mm_loadl_epi64((__m128i *)(data + 6 * src_stride)),
           _mm_loadl_epi64((__m128i *)(data + 7 * src_stride)));

       const __m128i src_01_lo = _mm_unpacklo_epi8(src_01, zero);
       const __m128i src_23_lo = _mm_unpacklo_epi8(src_23, zero);
       const __m128i src_45_lo = _mm_unpacklo_epi8(src_45, zero);
       const __m128i src_67_lo = _mm_unpacklo_epi8(src_67, zero);

       const __m128i res_01_lo = _mm_madd_epi16(src_01_lo, coeff_01);
       const __m128i res_23_lo = _mm_madd_epi16(src_23_lo, coeff_23);
       const __m128i res_45_lo = _mm_madd_epi16(src_45_lo, coeff_45);
       const __m128i res_67_lo = _mm_madd_epi16(src_67_lo, coeff_67);

       const __m128i res_lo = _mm_add_epi32(_mm_add_epi32(res_01_lo, res_23_lo),
                                            _mm_add_epi32(res_45_lo, res_67_lo));

       // Filter high index pixels
       const __m128i src_01_hi = _mm_unpackhi_epi8(src_01, zero);
       const __m128i src_23_hi = _mm_unpackhi_epi8(src_23, zero);
       const __m128i src_45_hi = _mm_unpackhi_epi8(src_45, zero);
       const __m128i src_67_hi = _mm_unpackhi_epi8(src_67, zero);

       const __m128i res_01_hi = _mm_madd_epi16(src_01_hi, coeff_01);
       const __m128i res_23_hi = _mm_madd_epi16(src_23_hi, coeff_23);
       const __m128i res_45_hi = _mm_madd_epi16(src_45_hi, coeff_45);
       const __m128i res_67_hi = _mm_madd_epi16(src_67_hi, coeff_67);

       const __m128i res_hi = _mm_add_epi32(_mm_add_epi32(res_01_hi, res_23_hi),
                                            _mm_add_epi32(res_45_hi, res_67_hi));

       const __m128i res_lo_shift = _mm_sll_epi32(res_lo, left_shift);
       const __m128i res_hi_shift = _mm_sll_epi32(res_hi, left_shift);

       // Accumulate values into the destination buffer
       __m128i *const p = (__m128i *)&dst[i * dst_stride + j];
       if (do_average) {
         _mm_storeu_si128(p + 0,
                          _mm_add_epi32(_mm_loadu_si128(p + 0), res_lo_shift));
         _mm_storeu_si128(p + 1,
                          _mm_add_epi32(_mm_loadu_si128(p + 1), res_hi_shift));
       } else {
         _mm_storeu_si128(p + 0, res_lo_shift);
         _mm_storeu_si128(p + 1, res_hi_shift);
       }
     }
   }
 }

 void av1_convolve_x_sse2(const uint8_t *src, int src_stride, CONV_BUF_TYPE *dst,
                          int dst_stride, int w, int h,
                          InterpFilterParams *filter_params_x,
                          InterpFilterParams *filter_params_y,
                          const int subpel_x_q4, const int subpel_y_q4,
                          ConvolveParams *conv_params) {
   int i, j;
   const int fo_horiz = filter_params_x->taps / 2 - 1;
   const int do_average = conv_params->do_average;
   const uint8_t *const src_ptr = src - fo_horiz;
   const int bits = FILTER_BITS - conv_params->round_1;
   const __m128i left_shift = _mm_cvtsi32_si128(bits);
   const __m128i zero = _mm_setzero_si128();

   (void)filter_params_y;
   (void)subpel_y_q4;

   const int16_t *x_filter = av1_get_interp_filter_subpel_kernel(
       *filter_params_x, subpel_x_q4 & SUBPEL_MASK);
   const __m128i coeffs_x = _mm_loadu_si128((__m128i *)x_filter);

   // coeffs 0 1 0 1 2 3 2 3
   const __m128i tmp_0 = _mm_unpacklo_epi32(coeffs_x, coeffs_x);
   // coeffs 4 5 4 5 6 7 6 7
   const __m128i tmp_1 = _mm_unpackhi_epi32(coeffs_x, coeffs_x);

   // coeffs 0 1 0 1 0 1 0 1
   const __m128i coeff_01 = _mm_unpacklo_epi64(tmp_0, tmp_0);
   // coeffs 2 3 2 3 2 3 2 3
   const __m128i coeff_23 = _mm_unpackhi_epi64(tmp_0, tmp_0);
   // coeffs 4 5 4 5 4 5 4 5
   const __m128i coeff_45 = _mm_unpacklo_epi64(tmp_1, tmp_1);
   // coeffs 6 7 6 7 6 7 6 7
   const __m128i coeff_67 = _mm_unpackhi_epi64(tmp_1, tmp_1);

   const __m128i round_const = _mm_set1_epi32((1 << conv_params->round_0) >> 1);
   const __m128i round_shift = _mm_cvtsi32_si128(conv_params->round_0);

   for (i = 0; i < h; ++i) {
     for (j = 0; j < w; j += 8) {
       const __m128i data =
           _mm_loadu_si128((__m128i *)&src_ptr[i * src_stride + j]);

       // Filter even-index pixels
       const __m128i src_0 = _mm_unpacklo_epi8(data, zero);
       const __m128i res_0 = _mm_madd_epi16(src_0, coeff_01);
       const __m128i src_2 = _mm_unpacklo_epi8(_mm_srli_si128(data, 2), zero);
       const __m128i res_2 = _mm_madd_epi16(src_2, coeff_23);
       const __m128i src_4 = _mm_unpacklo_epi8(_mm_srli_si128(data, 4), zero);
       const __m128i res_4 = _mm_madd_epi16(src_4, coeff_45);
       const __m128i src_6 = _mm_unpacklo_epi8(_mm_srli_si128(data, 6), zero);
       const __m128i res_6 = _mm_madd_epi16(src_6, coeff_67);
       const __m128i res_even = _mm_add_epi32(_mm_add_epi32(res_0, res_4),
                                              _mm_add_epi32(res_2, res_6));

       // Filter odd-index pixels
       const __m128i src_1 = _mm_unpacklo_epi8(_mm_srli_si128(data, 1), zero);
       const __m128i res_1 = _mm_madd_epi16(src_1, coeff_01);
       const __m128i src_3 = _mm_unpacklo_epi8(_mm_srli_si128(data, 3), zero);
       const __m128i res_3 = _mm_madd_epi16(src_3, coeff_23);
       const __m128i src_5 = _mm_unpacklo_epi8(_mm_srli_si128(data, 5), zero);
       const __m128i res_5 = _mm_madd_epi16(src_5, coeff_45);
       const __m128i src_7 = _mm_unpacklo_epi8(_mm_srli_si128(data, 7), zero);
       const __m128i res_7 = _mm_madd_epi16(src_7, coeff_67);
       const __m128i res_odd = _mm_add_epi32(_mm_add_epi32(res_1, res_5),
                                             _mm_add_epi32(res_3, res_7));

       // 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);

       const __m128i res_lo_round =
           _mm_sra_epi32(_mm_add_epi32(res_lo, round_const), round_shift);
       const __m128i res_hi_round =
           _mm_sra_epi32(_mm_add_epi32(res_hi, round_const), round_shift);
       const __m128i res_lo_shift = _mm_sll_epi32(res_lo_round, left_shift);
       const __m128i res_hi_shift = _mm_sll_epi32(res_hi_round, left_shift);

       // Accumulate values into the destination buffer
       __m128i *const p = (__m128i *)&dst[i * dst_stride + j];
       if (do_average) {
         _mm_storeu_si128(p + 0,
                          _mm_add_epi32(_mm_loadu_si128(p + 0), res_lo_shift));
         _mm_storeu_si128(p + 1,
                          _mm_add_epi32(_mm_loadu_si128(p + 1), res_hi_shift));
       } else {
         _mm_storeu_si128(p + 0, res_lo_shift);
         _mm_storeu_si128(p + 1, res_hi_shift);
       }
     }
   }
 }
	/*
	* 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 "./aom_dsp_rtcd.h"
	#include "aom_dsp/aom_convolve.h"
	#include "aom_dsp/aom_dsp_common.h"
	#include "aom_dsp/aom_filter.h"
	#include "av1/common/convolve.h"

	void av1_convolve_y_sse2(const uint8_t src, int src_stride, CONV_BUF_TYPE dst,
	int dst_stride, int w, int h,
	InterpFilterParams *filter_params_x,
	InterpFilterParams *filter_params_y,
	const int subpel_x_q4, const int subpel_y_q4,
	ConvolveParams *conv_params) {
	int i, j;
	const int fo_vert = filter_params_y->taps / 2 - 1;
	const int do_average = conv_params->do_average;
	const uint8_t const src_ptr = src - fo_vert src_stride;
	const int bits = FILTER_BITS - conv_params->round_0 - conv_params->round_1;
	const __m128i left_shift = _mm_cvtsi32_si128(bits);
	const __m128i zero = _mm_setzero_si128();

	(void)filter_params_x;
	(void)subpel_x_q4;

	const int16_t *y_filter = av1_get_interp_filter_subpel_kernel(
	*filter_params_y, subpel_y_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 1 0 1 0 1 0 1
	const __m128i coeff_01 = _mm_unpacklo_epi64(tmp_0, tmp_0);
	// coeffs 2 3 2 3 2 3 2 3
	const __m128i coeff_23 = _mm_unpackhi_epi64(tmp_0, tmp_0);
	// coeffs 4 5 4 5 4 5 4 5
	const __m128i coeff_45 = _mm_unpacklo_epi64(tmp_1, tmp_1);
	// coeffs 6 7 6 7 6 7 6 7
	const __m128i coeff_67 = _mm_unpackhi_epi64(tmp_1, tmp_1);

	for (i = 0; i < h; ++i) {
	for (j = 0; j < w; j += 8) {
	// Filter low index pixels
	const uint8_t data = &src_ptr[i src_stride + j];
	const __m128i src_01 = _mm_unpacklo_epi8(
	_mm_loadl_epi64((__m128i )(data + 0 src_stride)),
	_mm_loadl_epi64((__m128i )(data + 1 src_stride)));
	const __m128i src_23 = _mm_unpacklo_epi8(
	_mm_loadl_epi64((__m128i )(data + 2 src_stride)),
	_mm_loadl_epi64((__m128i )(data + 3 src_stride)));
	const __m128i src_45 = _mm_unpacklo_epi8(
	_mm_loadl_epi64((__m128i )(data + 4 src_stride)),
	_mm_loadl_epi64((__m128i )(data + 5 src_stride)));
	const __m128i src_67 = _mm_unpacklo_epi8(
	_mm_loadl_epi64((__m128i )(data + 6 src_stride)),
	_mm_loadl_epi64((__m128i )(data + 7 src_stride)));

	const __m128i src_01_lo = _mm_unpacklo_epi8(src_01, zero);
	const __m128i src_23_lo = _mm_unpacklo_epi8(src_23, zero);
	const __m128i src_45_lo = _mm_unpacklo_epi8(src_45, zero);
	const __m128i src_67_lo = _mm_unpacklo_epi8(src_67, zero);

	const __m128i res_01_lo = _mm_madd_epi16(src_01_lo, coeff_01);
	const __m128i res_23_lo = _mm_madd_epi16(src_23_lo, coeff_23);
	const __m128i res_45_lo = _mm_madd_epi16(src_45_lo, coeff_45);
	const __m128i res_67_lo = _mm_madd_epi16(src_67_lo, coeff_67);

	const __m128i res_lo = _mm_add_epi32(_mm_add_epi32(res_01_lo, res_23_lo),
	_mm_add_epi32(res_45_lo, res_67_lo));

	// Filter high index pixels
	const __m128i src_01_hi = _mm_unpackhi_epi8(src_01, zero);
	const __m128i src_23_hi = _mm_unpackhi_epi8(src_23, zero);
	const __m128i src_45_hi = _mm_unpackhi_epi8(src_45, zero);
	const __m128i src_67_hi = _mm_unpackhi_epi8(src_67, zero);

	const __m128i res_01_hi = _mm_madd_epi16(src_01_hi, coeff_01);
	const __m128i res_23_hi = _mm_madd_epi16(src_23_hi, coeff_23);
	const __m128i res_45_hi = _mm_madd_epi16(src_45_hi, coeff_45);
	const __m128i res_67_hi = _mm_madd_epi16(src_67_hi, coeff_67);

	const __m128i res_hi = _mm_add_epi32(_mm_add_epi32(res_01_hi, res_23_hi),
	_mm_add_epi32(res_45_hi, res_67_hi));

	const __m128i res_lo_shift = _mm_sll_epi32(res_lo, left_shift);
	const __m128i res_hi_shift = _mm_sll_epi32(res_hi, left_shift);

	// Accumulate values into the destination buffer
	__m128i const p = (__m128i )&dst[i * dst_stride + j];
	if (do_average) {
	_mm_storeu_si128(p + 0,
	_mm_add_epi32(_mm_loadu_si128(p + 0), res_lo_shift));
	_mm_storeu_si128(p + 1,
	_mm_add_epi32(_mm_loadu_si128(p + 1), res_hi_shift));
	} else {
	_mm_storeu_si128(p + 0, res_lo_shift);
	_mm_storeu_si128(p + 1, res_hi_shift);
	}
	}
	}
	}

	void av1_convolve_x_sse2(const uint8_t src, int src_stride, CONV_BUF_TYPE dst,
	int dst_stride, int w, int h,
	InterpFilterParams *filter_params_x,
	InterpFilterParams *filter_params_y,
	const int subpel_x_q4, const int subpel_y_q4,
	ConvolveParams *conv_params) {
	int i, j;
	const int fo_horiz = filter_params_x->taps / 2 - 1;
	const int do_average = conv_params->do_average;
	const uint8_t *const src_ptr = src - fo_horiz;
	const int bits = FILTER_BITS - conv_params->round_1;
	const __m128i left_shift = _mm_cvtsi32_si128(bits);
	const __m128i zero = _mm_setzero_si128();

	(void)filter_params_y;
	(void)subpel_y_q4;

	const int16_t *x_filter = av1_get_interp_filter_subpel_kernel(
	*filter_params_x, subpel_x_q4 & SUBPEL_MASK);
	const __m128i coeffs_x = _mm_loadu_si128((__m128i *)x_filter);

	// coeffs 0 1 0 1 2 3 2 3
	const __m128i tmp_0 = _mm_unpacklo_epi32(coeffs_x, coeffs_x);
	// coeffs 4 5 4 5 6 7 6 7
	const __m128i tmp_1 = _mm_unpackhi_epi32(coeffs_x, coeffs_x);

	// coeffs 0 1 0 1 0 1 0 1
	const __m128i coeff_01 = _mm_unpacklo_epi64(tmp_0, tmp_0);
	// coeffs 2 3 2 3 2 3 2 3
	const __m128i coeff_23 = _mm_unpackhi_epi64(tmp_0, tmp_0);
	// coeffs 4 5 4 5 4 5 4 5
	const __m128i coeff_45 = _mm_unpacklo_epi64(tmp_1, tmp_1);
	// coeffs 6 7 6 7 6 7 6 7
	const __m128i coeff_67 = _mm_unpackhi_epi64(tmp_1, tmp_1);

	const __m128i round_const = _mm_set1_epi32((1 << conv_params->round_0) >> 1);
	const __m128i round_shift = _mm_cvtsi32_si128(conv_params->round_0);

	for (i = 0; i < h; ++i) {
	for (j = 0; j < w; j += 8) {
	const __m128i data =
	_mm_loadu_si128((__m128i )&src_ptr[i src_stride + j]);

	// Filter even-index pixels
	const __m128i src_0 = _mm_unpacklo_epi8(data, zero);
	const __m128i res_0 = _mm_madd_epi16(src_0, coeff_01);
	const __m128i src_2 = _mm_unpacklo_epi8(_mm_srli_si128(data, 2), zero);
	const __m128i res_2 = _mm_madd_epi16(src_2, coeff_23);
	const __m128i src_4 = _mm_unpacklo_epi8(_mm_srli_si128(data, 4), zero);
	const __m128i res_4 = _mm_madd_epi16(src_4, coeff_45);
	const __m128i src_6 = _mm_unpacklo_epi8(_mm_srli_si128(data, 6), zero);
	const __m128i res_6 = _mm_madd_epi16(src_6, coeff_67);
	const __m128i res_even = _mm_add_epi32(_mm_add_epi32(res_0, res_4),
	_mm_add_epi32(res_2, res_6));

	// Filter odd-index pixels
	const __m128i src_1 = _mm_unpacklo_epi8(_mm_srli_si128(data, 1), zero);
	const __m128i res_1 = _mm_madd_epi16(src_1, coeff_01);
	const __m128i src_3 = _mm_unpacklo_epi8(_mm_srli_si128(data, 3), zero);
	const __m128i res_3 = _mm_madd_epi16(src_3, coeff_23);
	const __m128i src_5 = _mm_unpacklo_epi8(_mm_srli_si128(data, 5), zero);
	const __m128i res_5 = _mm_madd_epi16(src_5, coeff_45);
	const __m128i src_7 = _mm_unpacklo_epi8(_mm_srli_si128(data, 7), zero);
	const __m128i res_7 = _mm_madd_epi16(src_7, coeff_67);
	const __m128i res_odd = _mm_add_epi32(_mm_add_epi32(res_1, res_5),
	_mm_add_epi32(res_3, res_7));

	// 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);

	const __m128i res_lo_round =
	_mm_sra_epi32(_mm_add_epi32(res_lo, round_const), round_shift);
	const __m128i res_hi_round =
	_mm_sra_epi32(_mm_add_epi32(res_hi, round_const), round_shift);
	const __m128i res_lo_shift = _mm_sll_epi32(res_lo_round, left_shift);
	const __m128i res_hi_shift = _mm_sll_epi32(res_hi_round, left_shift);

	// Accumulate values into the destination buffer
	__m128i const p = (__m128i )&dst[i * dst_stride + j];
	if (do_average) {
	_mm_storeu_si128(p + 0,
	_mm_add_epi32(_mm_loadu_si128(p + 0), res_lo_shift));
	_mm_storeu_si128(p + 1,
	_mm_add_epi32(_mm_loadu_si128(p + 1), res_hi_shift));
	} else {
	_mm_storeu_si128(p + 0, res_lo_shift);
	_mm_storeu_si128(p + 1, res_hi_shift);
	}
	}
	}
	}