/*

 * 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.h>

#include <liboilfunction.h>

OIL_DEFINE_CLASS (argb_paint_u8, "uint8_t *i_4xn, uint8_t *s1_4, uint8_t *s2_n, int n");

#define div255(x) (((x + 128) + ((x + 128)>>8))>>8)

#define blend(x,y,a) div255((x)*(a) + (y)*(255-(a)))

/**

 * oil_argb_paint_u8:

 * @i_4xn: array

 * @s1_4: source color

 * @s2_n: source alpha array

 * @n: number of elements

 *

 * Composites source color onto in-place array according to the alpha

 * array.

 *

 * Deprecated.

 */

static void

argb_paint_u8_ref (uint8_t *dest, const uint8_t *color, const uint8_t *alpha, int n)

{

  int i;

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

    dest[0] = blend(color[0],dest[0],alpha[0]);

    dest[1] = blend(color[1],dest[1],alpha[0]);

    dest[2] = blend(color[2],dest[2],alpha[0]);

    dest[3] = blend(color[3],dest[3],alpha[0]);

    dest+=4;

    alpha++;

  }

}

OIL_DEFINE_IMPL_REF (argb_paint_u8_ref, argb_paint_u8);

#ifdef	__SYMBIAN32__

OilFunctionClass* __oil_function_class_argb_paint_u8() {

		return &_oil_function_class_argb_paint_u8;

}

#endif

#ifdef	__SYMBIAN32__

OilFunctionImpl* __oil_function_impl_argb_paint_u8_ref() {

		return &_oil_function_impl_argb_paint_u8_ref;

}

#endif

#ifdef	__SYMBIAN32__

EXPORT_C void** _oil_function_class_ptr_argb_paint_u8 ()	{

	oil_function_class_ptr_argb_paint_u8 = __oil_function_class_argb_paint_u8();

	return &oil_function_class_ptr_argb_paint_u8->func;

	}

#endif