/*

  * LIBOIL - Library of Optimized Inner Loops

  * Copyright (c) 2003,2004 David A. Schleef <ds@schleef.org>

  * 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.

  */

 //Portions Copyright (c)  2008-2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. 

 #ifdef HAVE_CONFIG_H

 #include "config.h"

 #endif

 #include <liboil/liboilfunction.h>

 #include "liboil/simdpack/simdpack.h"

 #include <math.h>

 #define ABS(x) ((x)>0 ? (x) : -(x))

 #define DSP_OP_ABS_DIFF(a,b) ABS((((int)(a)) - ((int)(b))))

 /**

  * oil_rowsad8x8_u8:

  * @d_1:

  * @s1_8x8:

  * @s2_8x8:

  *

  * Calculates the sum of absolute differences between @s1_8x8 and @s1_8s8

  * for the first 4 elements of the first row, and the sum of absolute

  * differences for the last 4 elements of the first row, and places the

  * maximum of those values in @dest.

  *

  * FIXME: This function is declared incorrectly.

  */

 OIL_DEFINE_CLASS (rowsad8x8_u8,

     "uint32_t *d_1, uint8_t *s1_8x8, uint8_t *s2_8x8");

 /**

  * oil_colsad8x8_u8:

  * @d_1:

  * @s1_8x8:

  * @s2_8x8:

  *

  * Divides the 8x8 block into 16 1x4 regions, and calculates the

  * sum of absolute differences between @s1_8x8 and @s2_8x8 for

  * each region.  The maximum of the results in each region is

  * placed in @d_1.

  */

 OIL_DEFINE_CLASS (colsad8x8_u8,

     "uint32_t *d_1, uint8_t *s1_8x8, int ss1, uint8_t *s2_8x8, int ss2");

 static void

 rowsad8x8_u8_ref (uint32_t *dest, uint8_t *src1, uint8_t *src2)

 {

   uint32_t SadValue;

   uint32_t SadValue1;

   SadValue    = DSP_OP_ABS_DIFF (src1[0], src2[0]) + 

 	        DSP_OP_ABS_DIFF (src1[1], src2[1]) +

 	        DSP_OP_ABS_DIFF (src1[2], src2[2]) +

 	        DSP_OP_ABS_DIFF (src1[3], src2[3]);

   SadValue1   = DSP_OP_ABS_DIFF (src1[4], src2[4]) + 

 	        DSP_OP_ABS_DIFF (src1[5], src2[5]) +

 	        DSP_OP_ABS_DIFF (src1[6], src2[6]) +

 	        DSP_OP_ABS_DIFF (src1[7], src2[7]);

   *dest = (SadValue > SadValue1) ? SadValue : SadValue1;

 }

 OIL_DEFINE_IMPL_REF (rowsad8x8_u8_ref, rowsad8x8_u8);

 static void

 colsad8x8_u8_ref (uint32_t *dest, uint8_t *src1, int ss1, uint8_t *src2, int ss2)

 {

   uint32_t SadValue[8] = {0,0,0,0,0,0,0,0};

   uint32_t SadValue2[8] = {0,0,0,0,0,0,0,0};

   uint32_t MaxSad = 0;

   uint32_t i;

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

     SadValue[0] += ABS(src1[0] - src2[0]);

     SadValue[1] += ABS(src1[1] - src2[1]);

     SadValue[2] += ABS(src1[2] - src2[2]);

     SadValue[3] += ABS(src1[3] - src2[3]);

     SadValue[4] += ABS(src1[4] - src2[4]);

     SadValue[5] += ABS(src1[5] - src2[5]);

     SadValue[6] += ABS(src1[6] - src2[6]);

     SadValue[7] += ABS(src1[7] - src2[7]);

     src1 += ss1;

     src2 += ss2;

   }

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

     SadValue2[0] += ABS(src1[0] - src2[0]);

     SadValue2[1] += ABS(src1[1] - src2[1]);

     SadValue2[2] += ABS(src1[2] - src2[2]);

     SadValue2[3] += ABS(src1[3] - src2[3]);

     SadValue2[4] += ABS(src1[4] - src2[4]);

     SadValue2[5] += ABS(src1[5] - src2[5]);

     SadValue2[6] += ABS(src1[6] - src2[6]);

     SadValue2[7] += ABS(src1[7] - src2[7]);

     src1 += ss1;

     src2 += ss2;

   }

   for ( i = 0; i < 8; i++ ){

     if ( SadValue[i] > MaxSad )

       MaxSad = SadValue[i];

     if ( SadValue2[i] > MaxSad )

       MaxSad = SadValue2[i];

   }

   *dest = MaxSad;

 }

 OIL_DEFINE_IMPL_REF (colsad8x8_u8_ref, colsad8x8_u8);

 #ifdef	__SYMBIAN32__

 OilFunctionClass* __oil_function_class_rowsad8x8_u8() {

 		return &_oil_function_class_rowsad8x8_u8;

 }

 #endif

 #ifdef	__SYMBIAN32__

 OilFunctionClass* __oil_function_class_colsad8x8_u8() {

 		return &_oil_function_class_colsad8x8_u8;

 }

 #endif

 #ifdef	__SYMBIAN32__

 OilFunctionImpl* __oil_function_impl_rowsad8x8_u8_ref() {

 		return &_oil_function_impl_rowsad8x8_u8_ref;

 }

 #endif

 #ifdef	__SYMBIAN32__

 OilFunctionImpl* __oil_function_impl_colsad8x8_u8_ref() {

 		return &_oil_function_impl_colsad8x8_u8_ref;

 }

 #endif

 #ifdef	__SYMBIAN32__

 EXPORT_C void** _oil_function_class_ptr_rowsad8x8_u8 ()	{

 	oil_function_class_ptr_rowsad8x8_u8 = __oil_function_class_rowsad8x8_u8();

 	return &oil_function_class_ptr_rowsad8x8_u8->func;

 	}

 #endif

 #ifdef	__SYMBIAN32__

 EXPORT_C void** _oil_function_class_ptr_colsad8x8_u8 ()	{

 	oil_function_class_ptr_colsad8x8_u8 = __oil_function_class_colsad8x8_u8();

 	return &oil_function_class_ptr_colsad8x8_u8->func;

 	}

 #endif