/*

  * Copyright (c) 2005

  *	Eric Anholt.  All rights reserved.

  *

  * Redistribution and use in source and binary forms, with or without

  * modification, are permitted provided that the following conditions

  * are met:

  * 1. Redistributions of source code must retain the above copyright

  *    notice, this list of conditions and the following disclaimer.

  * 2. Redistributions in binary form must reproduce the above copyright

  *    notice, this list of conditions and the following disclaimer in the

  *    documentation and/or other materials provided with the distribution.

  *

  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND

  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE

  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

  * SUCH DAMAGE.

  */

 #ifdef HAVE_CONFIG_H

 #include "config.h"

 #endif

 #include <liboil/liboilclasses.h>

 #include <liboil/liboilfunction.h>

 #include <emmintrin.h>

 #define SSE_FUNCTION __attribute__((force_align_arg_pointer))

 #ifdef ENABLE_BROKEN_IMPLS

 union m128_int {

   __m128i m128;

   uint32_t i[4];

   uint16_t s[8];

 };

 SSE_FUNCTION static void

 sad8x8_u8_sse (uint32_t *dest, uint8_t *src1, int sstr1, uint8_t *src2,

     int sstr2)

 {

   int i;

   __m128i sum = _mm_setzero_si128();

   union m128_int sumi;

   for (i = 0; i < 4; i++) {

     __m128i xmm0, xmm1, xmm2, xmm3;

     xmm0 = _mm_loadl_epi64((__m128i *)src1);

     xmm1 = _mm_loadl_epi64((__m128i *)(src1 + sstr1));

     xmm2 = _mm_loadl_epi64((__m128i *)src2);

     xmm3 = _mm_loadl_epi64((__m128i *)(src2 + sstr2));

     xmm0 = _mm_unpacklo_epi8(xmm0, xmm1);

     xmm2 = _mm_unpacklo_epi8(xmm2, xmm3);

     sum = _mm_add_epi64(sum, _mm_sad_epu8(xmm0, xmm2));

     src1 += 2 * sstr1;

     src2 += 2 * sstr2;

   }

   sumi.m128 = sum;

   *dest = sumi.i[0] + sumi.i[2];

 }

 OIL_DEFINE_IMPL_FULL_WRAPPER(sad8x8_u8_sse, sad8x8_u8, OIL_IMPL_FLAG_SSE2);

 #endif