aom_dsp/x86/aom_subpixel_8t_intrin_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 "config/aom_dsp_rtcd.h"

 #include "aom_dsp/aom_filter.h"
 #include "aom_dsp/x86/convolve.h"
 #include "aom_mem/aom_mem.h"
 #include "aom_ports/mem.h"
 #include "aom_ports/emmintrin_compat.h"

 // filters only for the 4_h8 convolution
 DECLARE_ALIGNED(16, static const uint8_t, filt1_4_h8[16]) = {
   0, 1, 1, 2, 2, 3, 3, 4, 2, 3, 3, 4, 4, 5, 5, 6
 };

 DECLARE_ALIGNED(16, static const uint8_t, filt2_4_h8[16]) = {
   4, 5, 5, 6, 6, 7, 7, 8, 6, 7, 7, 8, 8, 9, 9, 10
 };

 // filters for 8_h8 and 16_h8
 DECLARE_ALIGNED(16, static const uint8_t, filt1_global[16]) = {
   0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8
 };

 DECLARE_ALIGNED(16, static const uint8_t, filt2_global[16]) = {
   2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10
 };

 DECLARE_ALIGNED(16, static const uint8_t, filt3_global[16]) = {
   4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12
 };

 DECLARE_ALIGNED(16, static const uint8_t, filt4_global[16]) = {
   6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14
 };

 // These are reused by the avx2 intrinsics.
 filter8_1dfunction aom_filter_block1d8_v8_intrin_ssse3;
 filter8_1dfunction aom_filter_block1d8_h8_intrin_ssse3;
 filter8_1dfunction aom_filter_block1d4_h8_intrin_ssse3;

 void aom_filter_block1d4_h8_intrin_ssse3(
     const uint8_t *src_ptr, ptrdiff_t src_pixels_per_line, uint8_t *output_ptr,
     ptrdiff_t output_pitch, uint32_t output_height, const int16_t *filter) {
   __m128i firstFilters, secondFilters, shuffle1, shuffle2;
   __m128i srcRegFilt1, srcRegFilt2, srcRegFilt3, srcRegFilt4;
   __m128i addFilterReg64, filtersReg, srcReg, minReg;
   unsigned int i;

   // create a register with 0,64,0,64,0,64,0,64,0,64,0,64,0,64,0,64
   addFilterReg64 = _mm_set1_epi32((int)0x0400040u);
   filtersReg = _mm_loadu_si128((const __m128i *)filter);
   // converting the 16 bit (short) to  8 bit (byte) and have the same data
   // in both lanes of 128 bit register.
   filtersReg = _mm_packs_epi16(filtersReg, filtersReg);

   // duplicate only the first 16 bits in the filter into the first lane
   firstFilters = _mm_shufflelo_epi16(filtersReg, 0);
   // duplicate only the third 16 bit in the filter into the first lane
   secondFilters = _mm_shufflelo_epi16(filtersReg, 0xAAu);
   // duplicate only the seconds 16 bits in the filter into the second lane
   // firstFilters: k0 k1 k0 k1 k0 k1 k0 k1 k2 k3 k2 k3 k2 k3 k2 k3
   firstFilters = _mm_shufflehi_epi16(firstFilters, 0x55u);
   // duplicate only the forth 16 bits in the filter into the second lane
   // secondFilters: k4 k5 k4 k5 k4 k5 k4 k5 k6 k7 k6 k7 k6 k7 k6 k7
   secondFilters = _mm_shufflehi_epi16(secondFilters, 0xFFu);

   // loading the local filters
   shuffle1 = _mm_load_si128((__m128i const *)filt1_4_h8);
   shuffle2 = _mm_load_si128((__m128i const *)filt2_4_h8);

   for (i = 0; i < output_height; i++) {
     srcReg = _mm_loadu_si128((const __m128i *)(src_ptr - 3));

     // filter the source buffer
     srcRegFilt1 = _mm_shuffle_epi8(srcReg, shuffle1);
     srcRegFilt2 = _mm_shuffle_epi8(srcReg, shuffle2);

     // multiply 2 adjacent elements with the filter and add the result
     srcRegFilt1 = _mm_maddubs_epi16(srcRegFilt1, firstFilters);
     srcRegFilt2 = _mm_maddubs_epi16(srcRegFilt2, secondFilters);

     // extract the higher half of the lane
     srcRegFilt3 = _mm_srli_si128(srcRegFilt1, 8);
     srcRegFilt4 = _mm_srli_si128(srcRegFilt2, 8);

     minReg = _mm_min_epi16(srcRegFilt3, srcRegFilt2);

     // add and saturate all the results together
     srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, srcRegFilt4);
     srcRegFilt3 = _mm_max_epi16(srcRegFilt3, srcRegFilt2);
     srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, minReg);
     srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, srcRegFilt3);
     srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, addFilterReg64);

     // shift by 7 bit each 16 bits
     srcRegFilt1 = _mm_srai_epi16(srcRegFilt1, 7);

     // shrink to 8 bit each 16 bits
     srcRegFilt1 = _mm_packus_epi16(srcRegFilt1, srcRegFilt1);
     src_ptr += src_pixels_per_line;

     // save only 4 bytes
     *((int *)&output_ptr[0]) = _mm_cvtsi128_si32(srcRegFilt1);

     output_ptr += output_pitch;
   }
 }

 void aom_filter_block1d8_h8_intrin_ssse3(
     const uint8_t *src_ptr, ptrdiff_t src_pixels_per_line, uint8_t *output_ptr,
     ptrdiff_t output_pitch, uint32_t output_height, const int16_t *filter) {
   __m128i firstFilters, secondFilters, thirdFilters, forthFilters, srcReg;
   __m128i filt1Reg, filt2Reg, filt3Reg, filt4Reg;
   __m128i srcRegFilt1, srcRegFilt2, srcRegFilt3, srcRegFilt4;
   __m128i addFilterReg64, filtersReg, minReg;
   unsigned int i;

   // create a register with 0,64,0,64,0,64,0,64,0,64,0,64,0,64,0,64
   addFilterReg64 = _mm_set1_epi32((int)0x0400040u);
   filtersReg = _mm_loadu_si128((const __m128i *)filter);
   // converting the 16 bit (short) to  8 bit (byte) and have the same data
   // in both lanes of 128 bit register.
   filtersReg = _mm_packs_epi16(filtersReg, filtersReg);

   // duplicate only the first 16 bits (first and second byte)
   // across 128 bit register
   firstFilters = _mm_shuffle_epi8(filtersReg, _mm_set1_epi16(0x100u));
   // duplicate only the second 16 bits (third and forth byte)
   // across 128 bit register
   secondFilters = _mm_shuffle_epi8(filtersReg, _mm_set1_epi16(0x302u));
   // duplicate only the third 16 bits (fifth and sixth byte)
   // across 128 bit register
   thirdFilters = _mm_shuffle_epi8(filtersReg, _mm_set1_epi16(0x504u));
   // duplicate only the forth 16 bits (seventh and eighth byte)
   // across 128 bit register
   forthFilters = _mm_shuffle_epi8(filtersReg, _mm_set1_epi16(0x706u));

   filt1Reg = _mm_load_si128((__m128i const *)filt1_global);
   filt2Reg = _mm_load_si128((__m128i const *)filt2_global);
   filt3Reg = _mm_load_si128((__m128i const *)filt3_global);
   filt4Reg = _mm_load_si128((__m128i const *)filt4_global);

   for (i = 0; i < output_height; i++) {
     srcReg = _mm_loadu_si128((const __m128i *)(src_ptr - 3));

     // filter the source buffer
     srcRegFilt1 = _mm_shuffle_epi8(srcReg, filt1Reg);
     srcRegFilt2 = _mm_shuffle_epi8(srcReg, filt2Reg);

     // multiply 2 adjacent elements with the filter and add the result
     srcRegFilt1 = _mm_maddubs_epi16(srcRegFilt1, firstFilters);
     srcRegFilt2 = _mm_maddubs_epi16(srcRegFilt2, secondFilters);

     // filter the source buffer
     srcRegFilt3 = _mm_shuffle_epi8(srcReg, filt3Reg);
     srcRegFilt4 = _mm_shuffle_epi8(srcReg, filt4Reg);

     // multiply 2 adjacent elements with the filter and add the result
     srcRegFilt3 = _mm_maddubs_epi16(srcRegFilt3, thirdFilters);
     srcRegFilt4 = _mm_maddubs_epi16(srcRegFilt4, forthFilters);

     // add and saturate all the results together
     minReg = _mm_min_epi16(srcRegFilt2, srcRegFilt3);
     srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, srcRegFilt4);

     srcRegFilt2 = _mm_max_epi16(srcRegFilt2, srcRegFilt3);
     srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, minReg);
     srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, srcRegFilt2);
     srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, addFilterReg64);

     // shift by 7 bit each 16 bits
     srcRegFilt1 = _mm_srai_epi16(srcRegFilt1, 7);

     // shrink to 8 bit each 16 bits
     srcRegFilt1 = _mm_packus_epi16(srcRegFilt1, srcRegFilt1);

     src_ptr += src_pixels_per_line;

     // save only 8 bytes
     _mm_storel_epi64((__m128i *)&output_ptr[0], srcRegFilt1);

     output_ptr += output_pitch;
   }
 }

 void aom_filter_block1d8_v8_intrin_ssse3(
     const uint8_t *src_ptr, ptrdiff_t src_pitch, uint8_t *output_ptr,
     ptrdiff_t out_pitch, uint32_t output_height, const int16_t *filter) {
   __m128i addFilterReg64, filtersReg, minReg;
   __m128i firstFilters, secondFilters, thirdFilters, forthFilters;
   __m128i srcRegFilt1, srcRegFilt2, srcRegFilt3, srcRegFilt5;
   __m128i srcReg1, srcReg2, srcReg3, srcReg4, srcReg5, srcReg6, srcReg7;
   __m128i srcReg8;
   unsigned int i;

   // create a register with 0,64,0,64,0,64,0,64,0,64,0,64,0,64,0,64
   addFilterReg64 = _mm_set1_epi32((int)0x0400040u);
   filtersReg = _mm_loadu_si128((const __m128i *)filter);
   // converting the 16 bit (short) to  8 bit (byte) and have the same data
   // in both lanes of 128 bit register.
   filtersReg = _mm_packs_epi16(filtersReg, filtersReg);

   // duplicate only the first 16 bits in the filter
   firstFilters = _mm_shuffle_epi8(filtersReg, _mm_set1_epi16(0x100u));
   // duplicate only the second 16 bits in the filter
   secondFilters = _mm_shuffle_epi8(filtersReg, _mm_set1_epi16(0x302u));
   // duplicate only the third 16 bits in the filter
   thirdFilters = _mm_shuffle_epi8(filtersReg, _mm_set1_epi16(0x504u));
   // duplicate only the forth 16 bits in the filter
   forthFilters = _mm_shuffle_epi8(filtersReg, _mm_set1_epi16(0x706u));

   // load the first 7 rows of 8 bytes
   srcReg1 = _mm_loadl_epi64((const __m128i *)src_ptr);
   srcReg2 = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch));
   srcReg3 = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch * 2));
   srcReg4 = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch * 3));
   srcReg5 = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch * 4));
   srcReg6 = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch * 5));
   srcReg7 = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch * 6));

   for (i = 0; i < output_height; i++) {
     // load the last 8 bytes
     srcReg8 = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch * 7));

     // merge the result together
     srcRegFilt1 = _mm_unpacklo_epi8(srcReg1, srcReg2);
     srcRegFilt3 = _mm_unpacklo_epi8(srcReg3, srcReg4);

     // merge the result together
     srcRegFilt2 = _mm_unpacklo_epi8(srcReg5, srcReg6);
     srcRegFilt5 = _mm_unpacklo_epi8(srcReg7, srcReg8);

     // multiply 2 adjacent elements with the filter and add the result
     srcRegFilt1 = _mm_maddubs_epi16(srcRegFilt1, firstFilters);
     srcRegFilt3 = _mm_maddubs_epi16(srcRegFilt3, secondFilters);
     srcRegFilt2 = _mm_maddubs_epi16(srcRegFilt2, thirdFilters);
     srcRegFilt5 = _mm_maddubs_epi16(srcRegFilt5, forthFilters);

     // add and saturate the results together
     minReg = _mm_min_epi16(srcRegFilt2, srcRegFilt3);
     srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, srcRegFilt5);
     srcRegFilt2 = _mm_max_epi16(srcRegFilt2, srcRegFilt3);
     srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, minReg);
     srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, srcRegFilt2);
     srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, addFilterReg64);

     // shift by 7 bit each 16 bit
     srcRegFilt1 = _mm_srai_epi16(srcRegFilt1, 7);

     // shrink to 8 bit each 16 bits
     srcRegFilt1 = _mm_packus_epi16(srcRegFilt1, srcRegFilt1);

     src_ptr += src_pitch;

     // shift down a row
     srcReg1 = srcReg2;
     srcReg2 = srcReg3;
     srcReg3 = srcReg4;
     srcReg4 = srcReg5;
     srcReg5 = srcReg6;
     srcReg6 = srcReg7;
     srcReg7 = srcReg8;

     // save only 8 bytes convolve result
     _mm_storel_epi64((__m128i *)&output_ptr[0], srcRegFilt1);

     output_ptr += out_pitch;
   }
 }

 filter8_1dfunction aom_filter_block1d16_v8_ssse3;
 filter8_1dfunction aom_filter_block1d16_h8_ssse3;
 filter8_1dfunction aom_filter_block1d8_v8_ssse3;
 filter8_1dfunction aom_filter_block1d8_h8_ssse3;
 filter8_1dfunction aom_filter_block1d4_v8_ssse3;
 filter8_1dfunction aom_filter_block1d4_h8_ssse3;

 #define aom_filter_block1d16_h4_ssse3 aom_filter_block1d16_h8_ssse3
 #define aom_filter_block1d16_v4_ssse3 aom_filter_block1d16_v8_ssse3
 #define aom_filter_block1d8_h4_ssse3 aom_filter_block1d8_h8_ssse3
 #define aom_filter_block1d8_v4_ssse3 aom_filter_block1d8_v8_ssse3
 #define aom_filter_block1d4_h4_ssse3 aom_filter_block1d4_h8_ssse3
 #define aom_filter_block1d4_v4_ssse3 aom_filter_block1d4_v8_ssse3

 filter8_1dfunction aom_filter_block1d16_v2_ssse3;
 filter8_1dfunction aom_filter_block1d16_h2_ssse3;
 filter8_1dfunction aom_filter_block1d8_v2_ssse3;
 filter8_1dfunction aom_filter_block1d8_h2_ssse3;
 filter8_1dfunction aom_filter_block1d4_v2_ssse3;
 filter8_1dfunction aom_filter_block1d4_h2_ssse3;

 // void aom_convolve8_horiz_ssse3(const uint8_t *src, ptrdiff_t src_stride,
 //                                uint8_t *dst, 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);
 // void aom_convolve8_vert_ssse3(const uint8_t *src, ptrdiff_t src_stride,
 //                               uint8_t *dst, 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);
 FUN_CONV_1D(horiz, x_step_q4, filter_x, h, src, , ssse3);
 FUN_CONV_1D(vert, y_step_q4, filter_y, v, src - src_stride * 3, , ssse3);
	/*
	* 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 "config/aom_dsp_rtcd.h"

	#include "aom_dsp/aom_filter.h"
	#include "aom_dsp/x86/convolve.h"
	#include "aom_mem/aom_mem.h"
	#include "aom_ports/mem.h"
	#include "aom_ports/emmintrin_compat.h"

	// filters only for the 4_h8 convolution
	DECLARE_ALIGNED(16, static const uint8_t, filt1_4_h8[16]) = {
	0, 1, 1, 2, 2, 3, 3, 4, 2, 3, 3, 4, 4, 5, 5, 6
	};

	DECLARE_ALIGNED(16, static const uint8_t, filt2_4_h8[16]) = {
	4, 5, 5, 6, 6, 7, 7, 8, 6, 7, 7, 8, 8, 9, 9, 10
	};

	// filters for 8_h8 and 16_h8
	DECLARE_ALIGNED(16, static const uint8_t, filt1_global[16]) = {
	0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8
	};

	DECLARE_ALIGNED(16, static const uint8_t, filt2_global[16]) = {
	2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10
	};

	DECLARE_ALIGNED(16, static const uint8_t, filt3_global[16]) = {
	4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12
	};

	DECLARE_ALIGNED(16, static const uint8_t, filt4_global[16]) = {
	6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14
	};

	// These are reused by the avx2 intrinsics.
	filter8_1dfunction aom_filter_block1d8_v8_intrin_ssse3;
	filter8_1dfunction aom_filter_block1d8_h8_intrin_ssse3;
	filter8_1dfunction aom_filter_block1d4_h8_intrin_ssse3;

	void aom_filter_block1d4_h8_intrin_ssse3(
	const uint8_t src_ptr, ptrdiff_t src_pixels_per_line, uint8_t output_ptr,
	ptrdiff_t output_pitch, uint32_t output_height, const int16_t *filter) {
	__m128i firstFilters, secondFilters, shuffle1, shuffle2;
	__m128i srcRegFilt1, srcRegFilt2, srcRegFilt3, srcRegFilt4;
	__m128i addFilterReg64, filtersReg, srcReg, minReg;
	unsigned int i;

	// create a register with 0,64,0,64,0,64,0,64,0,64,0,64,0,64,0,64
	addFilterReg64 = _mm_set1_epi32((int)0x0400040u);
	filtersReg = _mm_loadu_si128((const __m128i *)filter);
	// converting the 16 bit (short) to 8 bit (byte) and have the same data
	// in both lanes of 128 bit register.
	filtersReg = _mm_packs_epi16(filtersReg, filtersReg);

	// duplicate only the first 16 bits in the filter into the first lane
	firstFilters = _mm_shufflelo_epi16(filtersReg, 0);
	// duplicate only the third 16 bit in the filter into the first lane
	secondFilters = _mm_shufflelo_epi16(filtersReg, 0xAAu);
	// duplicate only the seconds 16 bits in the filter into the second lane
	// firstFilters: k0 k1 k0 k1 k0 k1 k0 k1 k2 k3 k2 k3 k2 k3 k2 k3
	firstFilters = _mm_shufflehi_epi16(firstFilters, 0x55u);
	// duplicate only the forth 16 bits in the filter into the second lane
	// secondFilters: k4 k5 k4 k5 k4 k5 k4 k5 k6 k7 k6 k7 k6 k7 k6 k7
	secondFilters = _mm_shufflehi_epi16(secondFilters, 0xFFu);

	// loading the local filters
	shuffle1 = _mm_load_si128((__m128i const *)filt1_4_h8);
	shuffle2 = _mm_load_si128((__m128i const *)filt2_4_h8);

	for (i = 0; i < output_height; i++) {
	srcReg = _mm_loadu_si128((const __m128i *)(src_ptr - 3));

	// filter the source buffer
	srcRegFilt1 = _mm_shuffle_epi8(srcReg, shuffle1);
	srcRegFilt2 = _mm_shuffle_epi8(srcReg, shuffle2);

	// multiply 2 adjacent elements with the filter and add the result
	srcRegFilt1 = _mm_maddubs_epi16(srcRegFilt1, firstFilters);
	srcRegFilt2 = _mm_maddubs_epi16(srcRegFilt2, secondFilters);

	// extract the higher half of the lane
	srcRegFilt3 = _mm_srli_si128(srcRegFilt1, 8);
	srcRegFilt4 = _mm_srli_si128(srcRegFilt2, 8);

	minReg = _mm_min_epi16(srcRegFilt3, srcRegFilt2);

	// add and saturate all the results together
	srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, srcRegFilt4);
	srcRegFilt3 = _mm_max_epi16(srcRegFilt3, srcRegFilt2);
	srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, minReg);
	srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, srcRegFilt3);
	srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, addFilterReg64);

	// shift by 7 bit each 16 bits
	srcRegFilt1 = _mm_srai_epi16(srcRegFilt1, 7);

	// shrink to 8 bit each 16 bits
	srcRegFilt1 = _mm_packus_epi16(srcRegFilt1, srcRegFilt1);
	src_ptr += src_pixels_per_line;

	// save only 4 bytes
	((int )&output_ptr[0]) = _mm_cvtsi128_si32(srcRegFilt1);

	output_ptr += output_pitch;
	}
	}

	void aom_filter_block1d8_h8_intrin_ssse3(
	const uint8_t src_ptr, ptrdiff_t src_pixels_per_line, uint8_t output_ptr,
	ptrdiff_t output_pitch, uint32_t output_height, const int16_t *filter) {
	__m128i firstFilters, secondFilters, thirdFilters, forthFilters, srcReg;
	__m128i filt1Reg, filt2Reg, filt3Reg, filt4Reg;
	__m128i srcRegFilt1, srcRegFilt2, srcRegFilt3, srcRegFilt4;
	__m128i addFilterReg64, filtersReg, minReg;
	unsigned int i;

	// create a register with 0,64,0,64,0,64,0,64,0,64,0,64,0,64,0,64
	addFilterReg64 = _mm_set1_epi32((int)0x0400040u);
	filtersReg = _mm_loadu_si128((const __m128i *)filter);
	// converting the 16 bit (short) to 8 bit (byte) and have the same data
	// in both lanes of 128 bit register.
	filtersReg = _mm_packs_epi16(filtersReg, filtersReg);

	// duplicate only the first 16 bits (first and second byte)
	// across 128 bit register
	firstFilters = _mm_shuffle_epi8(filtersReg, _mm_set1_epi16(0x100u));
	// duplicate only the second 16 bits (third and forth byte)
	// across 128 bit register
	secondFilters = _mm_shuffle_epi8(filtersReg, _mm_set1_epi16(0x302u));
	// duplicate only the third 16 bits (fifth and sixth byte)
	// across 128 bit register
	thirdFilters = _mm_shuffle_epi8(filtersReg, _mm_set1_epi16(0x504u));
	// duplicate only the forth 16 bits (seventh and eighth byte)
	// across 128 bit register
	forthFilters = _mm_shuffle_epi8(filtersReg, _mm_set1_epi16(0x706u));

	filt1Reg = _mm_load_si128((__m128i const *)filt1_global);
	filt2Reg = _mm_load_si128((__m128i const *)filt2_global);
	filt3Reg = _mm_load_si128((__m128i const *)filt3_global);
	filt4Reg = _mm_load_si128((__m128i const *)filt4_global);

	for (i = 0; i < output_height; i++) {
	srcReg = _mm_loadu_si128((const __m128i *)(src_ptr - 3));

	// filter the source buffer
	srcRegFilt1 = _mm_shuffle_epi8(srcReg, filt1Reg);
	srcRegFilt2 = _mm_shuffle_epi8(srcReg, filt2Reg);

	// multiply 2 adjacent elements with the filter and add the result
	srcRegFilt1 = _mm_maddubs_epi16(srcRegFilt1, firstFilters);
	srcRegFilt2 = _mm_maddubs_epi16(srcRegFilt2, secondFilters);

	// filter the source buffer
	srcRegFilt3 = _mm_shuffle_epi8(srcReg, filt3Reg);
	srcRegFilt4 = _mm_shuffle_epi8(srcReg, filt4Reg);

	// multiply 2 adjacent elements with the filter and add the result
	srcRegFilt3 = _mm_maddubs_epi16(srcRegFilt3, thirdFilters);
	srcRegFilt4 = _mm_maddubs_epi16(srcRegFilt4, forthFilters);

	// add and saturate all the results together
	minReg = _mm_min_epi16(srcRegFilt2, srcRegFilt3);
	srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, srcRegFilt4);

	srcRegFilt2 = _mm_max_epi16(srcRegFilt2, srcRegFilt3);
	srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, minReg);
	srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, srcRegFilt2);
	srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, addFilterReg64);

	// shift by 7 bit each 16 bits
	srcRegFilt1 = _mm_srai_epi16(srcRegFilt1, 7);

	// shrink to 8 bit each 16 bits
	srcRegFilt1 = _mm_packus_epi16(srcRegFilt1, srcRegFilt1);

	src_ptr += src_pixels_per_line;

	// save only 8 bytes
	_mm_storel_epi64((__m128i *)&output_ptr[0], srcRegFilt1);

	output_ptr += output_pitch;
	}
	}

	void aom_filter_block1d8_v8_intrin_ssse3(
	const uint8_t src_ptr, ptrdiff_t src_pitch, uint8_t output_ptr,
	ptrdiff_t out_pitch, uint32_t output_height, const int16_t *filter) {
	__m128i addFilterReg64, filtersReg, minReg;
	__m128i firstFilters, secondFilters, thirdFilters, forthFilters;
	__m128i srcRegFilt1, srcRegFilt2, srcRegFilt3, srcRegFilt5;
	__m128i srcReg1, srcReg2, srcReg3, srcReg4, srcReg5, srcReg6, srcReg7;
	__m128i srcReg8;
	unsigned int i;

	// create a register with 0,64,0,64,0,64,0,64,0,64,0,64,0,64,0,64
	addFilterReg64 = _mm_set1_epi32((int)0x0400040u);
	filtersReg = _mm_loadu_si128((const __m128i *)filter);
	// converting the 16 bit (short) to 8 bit (byte) and have the same data
	// in both lanes of 128 bit register.
	filtersReg = _mm_packs_epi16(filtersReg, filtersReg);

	// duplicate only the first 16 bits in the filter
	firstFilters = _mm_shuffle_epi8(filtersReg, _mm_set1_epi16(0x100u));
	// duplicate only the second 16 bits in the filter
	secondFilters = _mm_shuffle_epi8(filtersReg, _mm_set1_epi16(0x302u));
	// duplicate only the third 16 bits in the filter
	thirdFilters = _mm_shuffle_epi8(filtersReg, _mm_set1_epi16(0x504u));
	// duplicate only the forth 16 bits in the filter
	forthFilters = _mm_shuffle_epi8(filtersReg, _mm_set1_epi16(0x706u));

	// load the first 7 rows of 8 bytes
	srcReg1 = _mm_loadl_epi64((const __m128i *)src_ptr);
	srcReg2 = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch));
	srcReg3 = _mm_loadl_epi64((const __m128i )(src_ptr + src_pitch 2));
	srcReg4 = _mm_loadl_epi64((const __m128i )(src_ptr + src_pitch 3));
	srcReg5 = _mm_loadl_epi64((const __m128i )(src_ptr + src_pitch 4));
	srcReg6 = _mm_loadl_epi64((const __m128i )(src_ptr + src_pitch 5));
	srcReg7 = _mm_loadl_epi64((const __m128i )(src_ptr + src_pitch 6));

	for (i = 0; i < output_height; i++) {
	// load the last 8 bytes
	srcReg8 = _mm_loadl_epi64((const __m128i )(src_ptr + src_pitch 7));

	// merge the result together
	srcRegFilt1 = _mm_unpacklo_epi8(srcReg1, srcReg2);
	srcRegFilt3 = _mm_unpacklo_epi8(srcReg3, srcReg4);

	// merge the result together
	srcRegFilt2 = _mm_unpacklo_epi8(srcReg5, srcReg6);
	srcRegFilt5 = _mm_unpacklo_epi8(srcReg7, srcReg8);

	// multiply 2 adjacent elements with the filter and add the result
	srcRegFilt1 = _mm_maddubs_epi16(srcRegFilt1, firstFilters);
	srcRegFilt3 = _mm_maddubs_epi16(srcRegFilt3, secondFilters);
	srcRegFilt2 = _mm_maddubs_epi16(srcRegFilt2, thirdFilters);
	srcRegFilt5 = _mm_maddubs_epi16(srcRegFilt5, forthFilters);

	// add and saturate the results together
	minReg = _mm_min_epi16(srcRegFilt2, srcRegFilt3);
	srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, srcRegFilt5);
	srcRegFilt2 = _mm_max_epi16(srcRegFilt2, srcRegFilt3);
	srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, minReg);
	srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, srcRegFilt2);
	srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, addFilterReg64);

	// shift by 7 bit each 16 bit
	srcRegFilt1 = _mm_srai_epi16(srcRegFilt1, 7);

	// shrink to 8 bit each 16 bits
	srcRegFilt1 = _mm_packus_epi16(srcRegFilt1, srcRegFilt1);

	src_ptr += src_pitch;

	// shift down a row
	srcReg1 = srcReg2;
	srcReg2 = srcReg3;
	srcReg3 = srcReg4;
	srcReg4 = srcReg5;
	srcReg5 = srcReg6;
	srcReg6 = srcReg7;
	srcReg7 = srcReg8;

	// save only 8 bytes convolve result
	_mm_storel_epi64((__m128i *)&output_ptr[0], srcRegFilt1);

	output_ptr += out_pitch;
	}
	}

	filter8_1dfunction aom_filter_block1d16_v8_ssse3;
	filter8_1dfunction aom_filter_block1d16_h8_ssse3;
	filter8_1dfunction aom_filter_block1d8_v8_ssse3;
	filter8_1dfunction aom_filter_block1d8_h8_ssse3;
	filter8_1dfunction aom_filter_block1d4_v8_ssse3;
	filter8_1dfunction aom_filter_block1d4_h8_ssse3;

	#define aom_filter_block1d16_h4_ssse3 aom_filter_block1d16_h8_ssse3
	#define aom_filter_block1d16_v4_ssse3 aom_filter_block1d16_v8_ssse3
	#define aom_filter_block1d8_h4_ssse3 aom_filter_block1d8_h8_ssse3
	#define aom_filter_block1d8_v4_ssse3 aom_filter_block1d8_v8_ssse3
	#define aom_filter_block1d4_h4_ssse3 aom_filter_block1d4_h8_ssse3
	#define aom_filter_block1d4_v4_ssse3 aom_filter_block1d4_v8_ssse3

	filter8_1dfunction aom_filter_block1d16_v2_ssse3;
	filter8_1dfunction aom_filter_block1d16_h2_ssse3;
	filter8_1dfunction aom_filter_block1d8_v2_ssse3;
	filter8_1dfunction aom_filter_block1d8_h2_ssse3;
	filter8_1dfunction aom_filter_block1d4_v2_ssse3;
	filter8_1dfunction aom_filter_block1d4_h2_ssse3;

	// void aom_convolve8_horiz_ssse3(const uint8_t *src, ptrdiff_t src_stride,
	// uint8_t *dst, 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);
	// void aom_convolve8_vert_ssse3(const uint8_t *src, ptrdiff_t src_stride,
	// uint8_t *dst, 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);
	FUN_CONV_1D(horiz, x_step_q4, filter_x, h, src, , ssse3);
	FUN_CONV_1D(vert, y_step_q4, filter_y, v, src - src_stride * 3, , ssse3);