aom_dsp/x86/aom_highbd_convolve_hip_ssse3.c - aom - Git at Google


            
            /*

            
             * Copyright (c) 2016, 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 <tmmintrin.h>

            
            #include <assert.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"


            #if EXTRAPREC_BITS > 2

            
            #error "Highbd high-prec convolve filter only supports EXTRAPREC_BITS <= 2"

            
            #error "(need to use 32-bit intermediates for EXTRAPREC_BITS > 2)"

            
            #endif


            void aom_highbd_convolve8_add_src_hip_ssse3(

            
                const uint8_t *src8, ptrdiff_t src_stride, uint8_t *dst8,

            
                ptrdiff_t dst_stride, const int16_t *filter_x, int x_step_q4,

            
                const int16_t *filter_y, int y_step_q4, int w, int h, int bd) {

            
              assert(x_step_q4 == 16 && y_step_q4 == 16);

            
              assert(!(w & 7));

            
              (void)x_step_q4;

            
              (void)y_step_q4;


              const uint16_t *const src = CONVERT_TO_SHORTPTR(src8);

            
              uint16_t *const dst = CONVERT_TO_SHORTPTR(dst8);


              DECLARE_ALIGNED(16, uint16_t,

            
                              temp[(MAX_SB_SIZE + SUBPEL_TAPS - 1) * MAX_SB_SIZE]);

            
              int intermediate_height = h + SUBPEL_TAPS - 1;

            
              int i, j;

            
              const int center_tap = ((SUBPEL_TAPS - 1) / 2);

            
              const uint16_t *const src_ptr = src - center_tap * src_stride - center_tap;


              const __m128i zero = _mm_setzero_si128();

            
              // Add an offset to account for the "add_src" part of the convolve function.

            
              const __m128i offset = _mm_insert_epi16(zero, 1 << FILTER_BITS, 3);


              /* Horizontal filter */

            
              {

            
                const __m128i coeffs_x =

            
                    _mm_add_epi16(_mm_loadu_si128((__m128i *)filter_x), offset);


                // 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 << (FILTER_BITS - EXTRAPREC_BITS - 1)) +

            
                                   (1 << (bd + FILTER_BITS - 1)));


                for (i = 0; i < intermediate_height; ++i) {

            
                  for (j = 0; j < w; j += 8) {

            
                    const __m128i data =

            
                        _mm_loadu_si128((__m128i *)&src_ptr[i * src_stride + j]);

            
                    const __m128i data2 =

            
                        _mm_loadu_si128((__m128i *)&src_ptr[i * src_stride + j + 8]);


                    // Filter even-index pixels

            
                    const __m128i res_0 = _mm_madd_epi16(data, coeff_01);

            
                    const __m128i res_2 =

            
                        _mm_madd_epi16(_mm_alignr_epi8(data2, data, 4), coeff_23);

            
                    const __m128i res_4 =

            
                        _mm_madd_epi16(_mm_alignr_epi8(data2, data, 8), coeff_45);

            
                    const __m128i res_6 =

            
                        _mm_madd_epi16(_mm_alignr_epi8(data2, data, 12), coeff_67);


                    __m128i res_even = _mm_add_epi32(_mm_add_epi32(res_0, res_4),

            
                                                     _mm_add_epi32(res_2, res_6));

            
                    res_even = _mm_srai_epi32(_mm_add_epi32(res_even, round_const),

            
                                              FILTER_BITS - EXTRAPREC_BITS);


                    // Filter odd-index pixels

            
                    const __m128i res_1 =

            
                        _mm_madd_epi16(_mm_alignr_epi8(data2, data, 2), coeff_01);

            
                    const __m128i res_3 =

            
                        _mm_madd_epi16(_mm_alignr_epi8(data2, data, 6), coeff_23);

            
                    const __m128i res_5 =

            
                        _mm_madd_epi16(_mm_alignr_epi8(data2, data, 10), coeff_45);

            
                    const __m128i res_7 =

            
                        _mm_madd_epi16(_mm_alignr_epi8(data2, data, 14), coeff_67);


                    __m128i res_odd = _mm_add_epi32(_mm_add_epi32(res_1, res_5),

            
                                                    _mm_add_epi32(res_3, res_7));

            
                    res_odd = _mm_srai_epi32(_mm_add_epi32(res_odd, round_const),

            
                                             FILTER_BITS - EXTRAPREC_BITS);


                    // Pack in the column order 0, 2, 4, 6, 1, 3, 5, 7

            
                    const __m128i maxval = _mm_set1_epi16((EXTRAPREC_CLAMP_LIMIT(bd)) - 1);

            
                    __m128i res = _mm_packs_epi32(res_even, res_odd);

            
                    res = _mm_min_epi16(_mm_max_epi16(res, zero), maxval);

            
                    _mm_storeu_si128((__m128i *)&temp[i * MAX_SB_SIZE + j], res);

            
                  }

            
                }

            
              }


              /* Vertical filter */

            
              {

            
                const __m128i coeffs_y =

            
                    _mm_add_epi16(_mm_loadu_si128((__m128i *)filter_y), offset);


                // 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);


                const __m128i round_const =

            
                    _mm_set1_epi32((1 << (FILTER_BITS + EXTRAPREC_BITS - 1)) -

            
                                   (1 << (bd + FILTER_BITS + EXTRAPREC_BITS - 1)));


                for (i = 0; i < h; ++i) {

            
                  for (j = 0; j < w; j += 8) {

            
                    // Filter even-index pixels

            
                    const uint16_t *data = &temp[i * MAX_SB_SIZE + j];

            
                    const __m128i src_0 =

            
                        _mm_unpacklo_epi16(*(__m128i *)(data + 0 * MAX_SB_SIZE),

            
                                           *(__m128i *)(data + 1 * MAX_SB_SIZE));

            
                    const __m128i src_2 =

            
                        _mm_unpacklo_epi16(*(__m128i *)(data + 2 * MAX_SB_SIZE),

            
                                           *(__m128i *)(data + 3 * MAX_SB_SIZE));

            
                    const __m128i src_4 =

            
                        _mm_unpacklo_epi16(*(__m128i *)(data + 4 * MAX_SB_SIZE),

            
                                           *(__m128i *)(data + 5 * MAX_SB_SIZE));

            
                    const __m128i src_6 =

            
                        _mm_unpacklo_epi16(*(__m128i *)(data + 6 * MAX_SB_SIZE),

            
                                           *(__m128i *)(data + 7 * MAX_SB_SIZE));


                    const __m128i res_0 = _mm_madd_epi16(src_0, coeff_01);

            
                    const __m128i res_2 = _mm_madd_epi16(src_2, coeff_23);

            
                    const __m128i res_4 = _mm_madd_epi16(src_4, coeff_45);

            
                    const __m128i res_6 = _mm_madd_epi16(src_6, coeff_67);


                    const __m128i res_even = _mm_add_epi32(_mm_add_epi32(res_0, res_2),

            
                                                           _mm_add_epi32(res_4, res_6));


                    // Filter odd-index pixels

            
                    const __m128i src_1 =

            
                        _mm_unpackhi_epi16(*(__m128i *)(data + 0 * MAX_SB_SIZE),

            
                                           *(__m128i *)(data + 1 * MAX_SB_SIZE));

            
                    const __m128i src_3 =

            
                        _mm_unpackhi_epi16(*(__m128i *)(data + 2 * MAX_SB_SIZE),

            
                                           *(__m128i *)(data + 3 * MAX_SB_SIZE));

            
                    const __m128i src_5 =

            
                        _mm_unpackhi_epi16(*(__m128i *)(data + 4 * MAX_SB_SIZE),

            
                                           *(__m128i *)(data + 5 * MAX_SB_SIZE));

            
                    const __m128i src_7 =

            
                        _mm_unpackhi_epi16(*(__m128i *)(data + 6 * MAX_SB_SIZE),

            
                                           *(__m128i *)(data + 7 * MAX_SB_SIZE));


                    const __m128i res_1 = _mm_madd_epi16(src_1, coeff_01);

            
                    const __m128i res_3 = _mm_madd_epi16(src_3, coeff_23);

            
                    const __m128i res_5 = _mm_madd_epi16(src_5, coeff_45);

            
                    const __m128i res_7 = _mm_madd_epi16(src_7, coeff_67);


                    const __m128i res_odd = _mm_add_epi32(_mm_add_epi32(res_1, res_3),

            
                                                          _mm_add_epi32(res_5, 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_srai_epi32(

            
                        _mm_add_epi32(res_lo, round_const), FILTER_BITS + EXTRAPREC_BITS);

            
                    const __m128i res_hi_round = _mm_srai_epi32(

            
                        _mm_add_epi32(res_hi, round_const), FILTER_BITS + EXTRAPREC_BITS);


                    const __m128i maxval = _mm_set1_epi16((1 << bd) - 1);

            
                    __m128i res_16bit = _mm_packs_epi32(res_lo_round, res_hi_round);

            
                    res_16bit = _mm_min_epi16(_mm_max_epi16(res_16bit, zero), maxval);


                    __m128i *const p = (__m128i *)&dst[i * dst_stride + j];

            
                    _mm_storeu_si128(p, res_16bit);

            
                  }

            
                }

            
              }

            
            }
	/*
	* Copyright (c) 2016, 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 <tmmintrin.h>
	#include <assert.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"

	#if EXTRAPREC_BITS > 2
	#error "Highbd high-prec convolve filter only supports EXTRAPREC_BITS <= 2"
	#error "(need to use 32-bit intermediates for EXTRAPREC_BITS > 2)"
	#endif

	void aom_highbd_convolve8_add_src_hip_ssse3(
	const uint8_t src8, ptrdiff_t src_stride, uint8_t dst8,
	ptrdiff_t dst_stride, const int16_t *filter_x, int x_step_q4,
	const int16_t *filter_y, int y_step_q4, int w, int h, int bd) {
	assert(x_step_q4 == 16 && y_step_q4 == 16);
	assert(!(w & 7));
	(void)x_step_q4;
	(void)y_step_q4;

	const uint16_t *const src = CONVERT_TO_SHORTPTR(src8);
	uint16_t *const dst = CONVERT_TO_SHORTPTR(dst8);

	DECLARE_ALIGNED(16, uint16_t,
	temp[(MAX_SB_SIZE + SUBPEL_TAPS - 1) * MAX_SB_SIZE]);
	int intermediate_height = h + SUBPEL_TAPS - 1;
	int i, j;
	const int center_tap = ((SUBPEL_TAPS - 1) / 2);
	const uint16_t const src_ptr = src - center_tap src_stride - center_tap;

	const __m128i zero = _mm_setzero_si128();
	// Add an offset to account for the "add_src" part of the convolve function.
	const __m128i offset = _mm_insert_epi16(zero, 1 << FILTER_BITS, 3);

	/* Horizontal filter */
	{
	const __m128i coeffs_x =
	_mm_add_epi16(_mm_loadu_si128((__m128i *)filter_x), offset);

	// 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 << (FILTER_BITS - EXTRAPREC_BITS - 1)) +
	(1 << (bd + FILTER_BITS - 1)));

	for (i = 0; i < intermediate_height; ++i) {
	for (j = 0; j < w; j += 8) {
	const __m128i data =
	_mm_loadu_si128((__m128i )&src_ptr[i src_stride + j]);
	const __m128i data2 =
	_mm_loadu_si128((__m128i )&src_ptr[i src_stride + j + 8]);

	// Filter even-index pixels
	const __m128i res_0 = _mm_madd_epi16(data, coeff_01);
	const __m128i res_2 =
	_mm_madd_epi16(_mm_alignr_epi8(data2, data, 4), coeff_23);
	const __m128i res_4 =
	_mm_madd_epi16(_mm_alignr_epi8(data2, data, 8), coeff_45);
	const __m128i res_6 =
	_mm_madd_epi16(_mm_alignr_epi8(data2, data, 12), coeff_67);

	__m128i res_even = _mm_add_epi32(_mm_add_epi32(res_0, res_4),
	_mm_add_epi32(res_2, res_6));
	res_even = _mm_srai_epi32(_mm_add_epi32(res_even, round_const),
	FILTER_BITS - EXTRAPREC_BITS);

	// Filter odd-index pixels
	const __m128i res_1 =
	_mm_madd_epi16(_mm_alignr_epi8(data2, data, 2), coeff_01);
	const __m128i res_3 =
	_mm_madd_epi16(_mm_alignr_epi8(data2, data, 6), coeff_23);
	const __m128i res_5 =
	_mm_madd_epi16(_mm_alignr_epi8(data2, data, 10), coeff_45);
	const __m128i res_7 =
	_mm_madd_epi16(_mm_alignr_epi8(data2, data, 14), coeff_67);

	__m128i res_odd = _mm_add_epi32(_mm_add_epi32(res_1, res_5),
	_mm_add_epi32(res_3, res_7));
	res_odd = _mm_srai_epi32(_mm_add_epi32(res_odd, round_const),
	FILTER_BITS - EXTRAPREC_BITS);

	// Pack in the column order 0, 2, 4, 6, 1, 3, 5, 7
	const __m128i maxval = _mm_set1_epi16((EXTRAPREC_CLAMP_LIMIT(bd)) - 1);
	__m128i res = _mm_packs_epi32(res_even, res_odd);
	res = _mm_min_epi16(_mm_max_epi16(res, zero), maxval);
	_mm_storeu_si128((__m128i )&temp[i MAX_SB_SIZE + j], res);
	}
	}
	}

	/* Vertical filter */
	{
	const __m128i coeffs_y =
	_mm_add_epi16(_mm_loadu_si128((__m128i *)filter_y), offset);

	// 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);

	const __m128i round_const =
	_mm_set1_epi32((1 << (FILTER_BITS + EXTRAPREC_BITS - 1)) -
	(1 << (bd + FILTER_BITS + EXTRAPREC_BITS - 1)));

	for (i = 0; i < h; ++i) {
	for (j = 0; j < w; j += 8) {
	// Filter even-index pixels
	const uint16_t data = &temp[i MAX_SB_SIZE + j];
	const __m128i src_0 =
	_mm_unpacklo_epi16((__m128i )(data + 0 * MAX_SB_SIZE),
	(__m128i )(data + 1 * MAX_SB_SIZE));
	const __m128i src_2 =
	_mm_unpacklo_epi16((__m128i )(data + 2 * MAX_SB_SIZE),
	(__m128i )(data + 3 * MAX_SB_SIZE));
	const __m128i src_4 =
	_mm_unpacklo_epi16((__m128i )(data + 4 * MAX_SB_SIZE),
	(__m128i )(data + 5 * MAX_SB_SIZE));
	const __m128i src_6 =
	_mm_unpacklo_epi16((__m128i )(data + 6 * MAX_SB_SIZE),
	(__m128i )(data + 7 * MAX_SB_SIZE));

	const __m128i res_0 = _mm_madd_epi16(src_0, coeff_01);
	const __m128i res_2 = _mm_madd_epi16(src_2, coeff_23);
	const __m128i res_4 = _mm_madd_epi16(src_4, coeff_45);
	const __m128i res_6 = _mm_madd_epi16(src_6, coeff_67);

	const __m128i res_even = _mm_add_epi32(_mm_add_epi32(res_0, res_2),
	_mm_add_epi32(res_4, res_6));

	// Filter odd-index pixels
	const __m128i src_1 =
	_mm_unpackhi_epi16((__m128i )(data + 0 * MAX_SB_SIZE),
	(__m128i )(data + 1 * MAX_SB_SIZE));
	const __m128i src_3 =
	_mm_unpackhi_epi16((__m128i )(data + 2 * MAX_SB_SIZE),
	(__m128i )(data + 3 * MAX_SB_SIZE));
	const __m128i src_5 =
	_mm_unpackhi_epi16((__m128i )(data + 4 * MAX_SB_SIZE),
	(__m128i )(data + 5 * MAX_SB_SIZE));
	const __m128i src_7 =
	_mm_unpackhi_epi16((__m128i )(data + 6 * MAX_SB_SIZE),
	(__m128i )(data + 7 * MAX_SB_SIZE));

	const __m128i res_1 = _mm_madd_epi16(src_1, coeff_01);
	const __m128i res_3 = _mm_madd_epi16(src_3, coeff_23);
	const __m128i res_5 = _mm_madd_epi16(src_5, coeff_45);
	const __m128i res_7 = _mm_madd_epi16(src_7, coeff_67);

	const __m128i res_odd = _mm_add_epi32(_mm_add_epi32(res_1, res_3),
	_mm_add_epi32(res_5, 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_srai_epi32(
	_mm_add_epi32(res_lo, round_const), FILTER_BITS + EXTRAPREC_BITS);
	const __m128i res_hi_round = _mm_srai_epi32(
	_mm_add_epi32(res_hi, round_const), FILTER_BITS + EXTRAPREC_BITS);

	const __m128i maxval = _mm_set1_epi16((1 << bd) - 1);
	__m128i res_16bit = _mm_packs_epi32(res_lo_round, res_hi_round);
	res_16bit = _mm_min_epi16(_mm_max_epi16(res_16bit, zero), maxval);

	__m128i const p = (__m128i )&dst[i * dst_stride + j];
	_mm_storeu_si128(p, res_16bit);
	}
	}
	}
	}