|
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 |
|
28 //Portions Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. |
|
29 |
|
30 #ifdef HAVE_CONFIG_H |
|
31 #include "config.h" |
|
32 #endif |
|
33 |
|
34 #include <liboil.h> |
|
35 #include <liboilfunction.h> |
|
36 |
|
37 OIL_DEFINE_CLASS (argb_paint_u8, "uint8_t *i_4xn, uint8_t *s1_4, uint8_t *s2_n, int n"); |
|
38 |
|
39 |
|
40 #define div255(x) (((x + 128) + ((x + 128)>>8))>>8) |
|
41 #define blend(x,y,a) div255((x)*(a) + (y)*(255-(a))) |
|
42 |
|
43 /** |
|
44 * oil_argb_paint_u8: |
|
45 * @i_4xn: array |
|
46 * @s1_4: source color |
|
47 * @s2_n: source alpha array |
|
48 * @n: number of elements |
|
49 * |
|
50 * Composites source color onto in-place array according to the alpha |
|
51 * array. |
|
52 * |
|
53 * Deprecated. |
|
54 */ |
|
55 static void |
|
56 argb_paint_u8_ref (uint8_t *dest, const uint8_t *color, const uint8_t *alpha, int n) |
|
57 { |
|
58 int i; |
|
59 |
|
60 for(i=0;i<n;i++){ |
|
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]); |
|
65 dest+=4; |
|
66 alpha++; |
|
67 } |
|
68 |
|
69 } |
|
70 OIL_DEFINE_IMPL_REF (argb_paint_u8_ref, argb_paint_u8); |
|
71 |
|
72 |
|
73 |
|
74 #ifdef __SYMBIAN32__ |
|
75 |
|
76 OilFunctionClass* __oil_function_class_argb_paint_u8() { |
|
77 return &_oil_function_class_argb_paint_u8; |
|
78 } |
|
79 #endif |
|
80 |
|
81 |
|
82 |
|
83 #ifdef __SYMBIAN32__ |
|
84 |
|
85 OilFunctionImpl* __oil_function_impl_argb_paint_u8_ref() { |
|
86 return &_oil_function_impl_argb_paint_u8_ref; |
|
87 } |
|
88 #endif |
|
89 |
|
90 |
|
91 |
|
92 #ifdef __SYMBIAN32__ |
|
93 |
|
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; |
|
97 } |
|
98 #endif |
|
99 |