1 /*

     2  * LIBOIL - Library of Optimized Inner Loops

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

     4  * All rights reserved.

     5  *

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

     7  * modification, are permitted provided that the following conditions

     8  * are met:

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

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

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

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

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

    14  * 

    15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR

    16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

    17  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

    18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,

    19  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

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

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

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

    23  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING

    24  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

    25  * POSSIBILITY OF SUCH DAMAGE.

    26  */

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

    28 

    29 #ifdef HAVE_CONFIG_H

    30 #include "config.h"

    31 #endif

    32 

    33 #include <liboil/liboil.h>

    34 #include "jpeg.h"

    35 

    36 /**

    37  * oil_dequantize8x8_s16:

    38  * @d_8x8:

    39  * @dstr:

    40  * @s1_8x8:

    41  * @sstr1:

    42  * @s2_8x8:

    43  *

    44  * Multiplies each element in @s1_8x8 by the corresponding element

    45  * in @s2_8x8 and places the result in @d_8x8.

    46  */

    47 OIL_DEFINE_CLASS (dequantize8x8_s16, 

    48     "int16_t *d_8x8, int dstr, int16_t *s1_8x8, int sstr1, "

    49     "int16_t *s2_8x8, int sstr2");

    50 

    51 #define BLOCK8x8_S16(ptr, stride, row, column) \

    52 	(*((int16_t *)((unsigned char *)ptr + stride*row) + column))

    53 

    54 static void

    55 dequantize8x8_s16_ref (int16_t *dest, int dstr, int16_t *src, int sstr,

    56     int16_t *quant, int qstr)

    57 {

    58 	int i,j;

    59 

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

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

    62 			BLOCK8x8_S16(dest,dstr,i,j) =

    63 				BLOCK8x8_S16(src,sstr,i,j) *

    64 				BLOCK8x8_S16(quant,qstr,i,j);

    65 		}

    66 	}

    67 }

    68 

    69 OIL_DEFINE_IMPL_REF (dequantize8x8_s16_ref, dequantize8x8_s16);

    70 

    71 

    72 

    73 #ifdef	__SYMBIAN32__

    74  

    75 OilFunctionClass* __oil_function_class_dequantize8x8_s16() {

    76 		return &_oil_function_class_dequantize8x8_s16;

    77 }

    78 #endif

    79 

    80 

    81 

    82 #ifdef	__SYMBIAN32__

    83  

    84 OilFunctionImpl* __oil_function_impl_dequantize8x8_s16_ref() {

    85 		return &_oil_function_impl_dequantize8x8_s16_ref;

    86 }

    87 #endif

    88 

    89 

    90 

    91 #ifdef	__SYMBIAN32__

    92  

    93 EXPORT_C void** _oil_function_class_ptr_dequantize8x8_s16 ()	{

    94 	oil_function_class_ptr_dequantize8x8_s16 = __oil_function_class_dequantize8x8_s16();

    95 	return &oil_function_class_ptr_dequantize8x8_s16->func;

    96 	}

    97 #endif

    98