sl@0: /*
sl@0:  * LIBOIL - Library of Optimized Inner Loops
sl@0:  * Copyright (c) 2003,2004 David A. Schleef <ds@schleef.org>
sl@0:  * All rights reserved.
sl@0:  *
sl@0:  * Redistribution and use in source and binary forms, with or without
sl@0:  * modification, are permitted provided that the following conditions
sl@0:  * are met:
sl@0:  * 1. Redistributions of source code must retain the above copyright
sl@0:  *    notice, this list of conditions and the following disclaimer.
sl@0:  * 2. Redistributions in binary form must reproduce the above copyright
sl@0:  *    notice, this list of conditions and the following disclaimer in the
sl@0:  *    documentation and/or other materials provided with the distribution.
sl@0:  * 
sl@0:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
sl@0:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
sl@0:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
sl@0:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
sl@0:  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
sl@0:  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
sl@0:  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
sl@0:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
sl@0:  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
sl@0:  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
sl@0:  * POSSIBILITY OF SUCH DAMAGE.
sl@0:  */
sl@0: //Portions Copyright (c)  2008-2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. 
sl@0: 
sl@0: #ifdef HAVE_CONFIG_H
sl@0: #include "config.h"
sl@0: #endif
sl@0: 
sl@0: #include <liboil/liboilfunction.h>
sl@0: #include "liboil/simdpack/simdpack.h"
sl@0: #include <math.h>
sl@0: 
sl@0: #define ABS(x) ((x)>0 ? (x) : -(x))
sl@0: #define DSP_OP_ABS_DIFF(a,b) ABS((((int)(a)) - ((int)(b))))
sl@0: 
sl@0: /**
sl@0:  * oil_rowsad8x8_u8:
sl@0:  * @d_1:
sl@0:  * @s1_8x8:
sl@0:  * @s2_8x8:
sl@0:  *
sl@0:  * Calculates the sum of absolute differences between @s1_8x8 and @s1_8s8
sl@0:  * for the first 4 elements of the first row, and the sum of absolute
sl@0:  * differences for the last 4 elements of the first row, and places the
sl@0:  * maximum of those values in @dest.
sl@0:  *
sl@0:  * FIXME: This function is declared incorrectly.
sl@0:  */
sl@0: OIL_DEFINE_CLASS (rowsad8x8_u8,
sl@0:     "uint32_t *d_1, uint8_t *s1_8x8, uint8_t *s2_8x8");
sl@0: /**
sl@0:  * oil_colsad8x8_u8:
sl@0:  * @d_1:
sl@0:  * @s1_8x8:
sl@0:  * @s2_8x8:
sl@0:  *
sl@0:  * Divides the 8x8 block into 16 1x4 regions, and calculates the
sl@0:  * sum of absolute differences between @s1_8x8 and @s2_8x8 for
sl@0:  * each region.  The maximum of the results in each region is
sl@0:  * placed in @d_1.
sl@0:  */
sl@0: OIL_DEFINE_CLASS (colsad8x8_u8,
sl@0:     "uint32_t *d_1, uint8_t *s1_8x8, int ss1, uint8_t *s2_8x8, int ss2");
sl@0: 
sl@0: static void
sl@0: rowsad8x8_u8_ref (uint32_t *dest, uint8_t *src1, uint8_t *src2)
sl@0: {
sl@0:   uint32_t SadValue;
sl@0:   uint32_t SadValue1;
sl@0: 
sl@0:   SadValue    = DSP_OP_ABS_DIFF (src1[0], src2[0]) + 
sl@0: 	        DSP_OP_ABS_DIFF (src1[1], src2[1]) +
sl@0: 	        DSP_OP_ABS_DIFF (src1[2], src2[2]) +
sl@0: 	        DSP_OP_ABS_DIFF (src1[3], src2[3]);
sl@0: 
sl@0:   SadValue1   = DSP_OP_ABS_DIFF (src1[4], src2[4]) + 
sl@0: 	        DSP_OP_ABS_DIFF (src1[5], src2[5]) +
sl@0: 	        DSP_OP_ABS_DIFF (src1[6], src2[6]) +
sl@0: 	        DSP_OP_ABS_DIFF (src1[7], src2[7]);
sl@0: 
sl@0:   *dest = (SadValue > SadValue1) ? SadValue : SadValue1;
sl@0: }
sl@0: OIL_DEFINE_IMPL_REF (rowsad8x8_u8_ref, rowsad8x8_u8);
sl@0: 
sl@0: static void
sl@0: colsad8x8_u8_ref (uint32_t *dest, uint8_t *src1, int ss1, uint8_t *src2, int ss2)
sl@0: {
sl@0:   uint32_t SadValue[8] = {0,0,0,0,0,0,0,0};
sl@0:   uint32_t SadValue2[8] = {0,0,0,0,0,0,0,0};
sl@0:   uint32_t MaxSad = 0;
sl@0:   uint32_t i;
sl@0: 
sl@0:   for ( i = 0; i < 4; i++ ){
sl@0:     SadValue[0] += ABS(src1[0] - src2[0]);
sl@0:     SadValue[1] += ABS(src1[1] - src2[1]);
sl@0:     SadValue[2] += ABS(src1[2] - src2[2]);
sl@0:     SadValue[3] += ABS(src1[3] - src2[3]);
sl@0:     SadValue[4] += ABS(src1[4] - src2[4]);
sl@0:     SadValue[5] += ABS(src1[5] - src2[5]);
sl@0:     SadValue[6] += ABS(src1[6] - src2[6]);
sl@0:     SadValue[7] += ABS(src1[7] - src2[7]);
sl@0:     
sl@0:     src1 += ss1;
sl@0:     src2 += ss2;
sl@0:   }
sl@0: 
sl@0:   for ( i = 0; i < 4; i++ ){
sl@0:     SadValue2[0] += ABS(src1[0] - src2[0]);
sl@0:     SadValue2[1] += ABS(src1[1] - src2[1]);
sl@0:     SadValue2[2] += ABS(src1[2] - src2[2]);
sl@0:     SadValue2[3] += ABS(src1[3] - src2[3]);
sl@0:     SadValue2[4] += ABS(src1[4] - src2[4]);
sl@0:     SadValue2[5] += ABS(src1[5] - src2[5]);
sl@0:     SadValue2[6] += ABS(src1[6] - src2[6]);
sl@0:     SadValue2[7] += ABS(src1[7] - src2[7]);
sl@0:     
sl@0:     src1 += ss1;
sl@0:     src2 += ss2;
sl@0:   }
sl@0:     
sl@0:   for ( i = 0; i < 8; i++ ){
sl@0:     if ( SadValue[i] > MaxSad )
sl@0:       MaxSad = SadValue[i];
sl@0:     if ( SadValue2[i] > MaxSad )
sl@0:       MaxSad = SadValue2[i];
sl@0:   }
sl@0:     
sl@0:   *dest = MaxSad;
sl@0: }
sl@0: OIL_DEFINE_IMPL_REF (colsad8x8_u8_ref, colsad8x8_u8);
sl@0: 
sl@0: 
sl@0: 
sl@0: #ifdef	__SYMBIAN32__
sl@0:  
sl@0: OilFunctionClass* __oil_function_class_rowsad8x8_u8() {
sl@0: 		return &_oil_function_class_rowsad8x8_u8;
sl@0: }
sl@0: #endif
sl@0: 
sl@0: #ifdef	__SYMBIAN32__
sl@0:  
sl@0: OilFunctionClass* __oil_function_class_colsad8x8_u8() {
sl@0: 		return &_oil_function_class_colsad8x8_u8;
sl@0: }
sl@0: #endif
sl@0: 
sl@0: 
sl@0: 
sl@0: #ifdef	__SYMBIAN32__
sl@0:  
sl@0: OilFunctionImpl* __oil_function_impl_rowsad8x8_u8_ref() {
sl@0: 		return &_oil_function_impl_rowsad8x8_u8_ref;
sl@0: }
sl@0: #endif
sl@0: 
sl@0: #ifdef	__SYMBIAN32__
sl@0:  
sl@0: OilFunctionImpl* __oil_function_impl_colsad8x8_u8_ref() {
sl@0: 		return &_oil_function_impl_colsad8x8_u8_ref;
sl@0: }
sl@0: #endif
sl@0: 
sl@0: 
sl@0: 
sl@0: #ifdef	__SYMBIAN32__
sl@0:  
sl@0: EXPORT_C void** _oil_function_class_ptr_rowsad8x8_u8 ()	{
sl@0: 	oil_function_class_ptr_rowsad8x8_u8 = __oil_function_class_rowsad8x8_u8();
sl@0: 	return &oil_function_class_ptr_rowsad8x8_u8->func;
sl@0: 	}
sl@0: #endif
sl@0: 
sl@0: #ifdef	__SYMBIAN32__
sl@0:  
sl@0: EXPORT_C void** _oil_function_class_ptr_colsad8x8_u8 ()	{
sl@0: 	oil_function_class_ptr_colsad8x8_u8 = __oil_function_class_colsad8x8_u8();
sl@0: 	return &oil_function_class_ptr_colsad8x8_u8->func;
sl@0: 	}
sl@0: #endif
sl@0: