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/liboilfunction.h>

    34 #include "liboil/simdpack/simdpack.h"

    35 #include <math.h>

    36 

    37 /**

    38  * oil_mix_u8:

    39  * @dest: DEST

    40  * @src1: SRC1

    41  * @src2: SRC2

    42  * @src3: MASK

    43  * @n:

    44  *

    45  * Performs the compisiting operation DEST = (SRC2 IN MASK) OVER SRC1,

    46  * except it is done incorrectly, so this function should not be used.

    47  *

    48  * FIXME: This function is broken.

    49  */

    50 OIL_DEFINE_CLASS (mix_u8,

    51     "uint8_t *dest, uint8_t *src1, uint8_t *src2, uint8_t *src3, int n");

    52 

    53 static void mix_u8_ref(uint8_t *dest, uint8_t *src1, uint8_t *src2, uint8_t *scale, int n)

    54 {

    55 	int i;

    56 

    57 	for(i=0;i<n;i++){

    58 		dest[i] = (src1[i]*scale[i] + src2[i]*(255-scale[i]))>>8;

    59 	}

    60 }

    61 

    62 OIL_DEFINE_IMPL_REF (mix_u8_ref, mix_u8);

    63 

    64 

    65 

    66 #ifdef	__SYMBIAN32__

    67  

    68 OilFunctionClass* __oil_function_class_mix_u8() {

    69 		return &_oil_function_class_mix_u8;

    70 }

    71 #endif

    72 

    73 

    74 

    75 #ifdef	__SYMBIAN32__

    76  

    77 OilFunctionImpl* __oil_function_impl_mix_u8_ref() {

    78 		return &_oil_function_impl_mix_u8_ref;

    79 }

    80 #endif

    81 

    82 

    83 

    84 #ifdef	__SYMBIAN32__

    85  

    86 EXPORT_C void** _oil_function_class_ptr_mix_u8 ()	{

    87 	oil_function_class_ptr_mix_u8 = __oil_function_class_mix_u8();

    88 	return &oil_function_class_ptr_mix_u8->func;

    89 	}

    90 #endif

    91