2 * LIBOIL - Library of Optimized Inner Loops
3 * Copyright (c) 2003,2004 David A. Schleef <ds@schleef.org>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
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.
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.
28 //Portions Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
35 #include <liboilfunction.h>
37 OIL_DEFINE_CLASS (argb_paint_u8, "uint8_t *i_4xn, uint8_t *s1_4, uint8_t *s2_n, int n");
40 #define div255(x) (((x + 128) + ((x + 128)>>8))>>8)
41 #define blend(x,y,a) div255((x)*(a) + (y)*(255-(a)))
47 * @s2_n: source alpha array
48 * @n: number of elements
50 * Composites source color onto in-place array according to the alpha
56 argb_paint_u8_ref (uint8_t *dest, const uint8_t *color, const uint8_t *alpha, int n)
61 dest[0] = blend(color[0],dest[0],alpha[0]);
62 dest[1] = blend(color[1],dest[1],alpha[0]);
63 dest[2] = blend(color[2],dest[2],alpha[0]);
64 dest[3] = blend(color[3],dest[3],alpha[0]);
70 OIL_DEFINE_IMPL_REF (argb_paint_u8_ref, argb_paint_u8);
76 OilFunctionClass* __oil_function_class_argb_paint_u8() {
77 return &_oil_function_class_argb_paint_u8;
85 OilFunctionImpl* __oil_function_impl_argb_paint_u8_ref() {
86 return &_oil_function_impl_argb_paint_u8_ref;
94 EXPORT_C void** _oil_function_class_ptr_argb_paint_u8 () {
95 oil_function_class_ptr_argb_paint_u8 = __oil_function_class_argb_paint_u8();
96 return &oil_function_class_ptr_argb_paint_u8->func;