pixman-solid-fill.c revision 9ad247e8 
1/*
2 * Copyright © 2000 SuSE, Inc.
3 * Copyright © 2007, 2009 Red Hat, Inc.
4 * Copyright © 2009 Soren Sandmann
5 *
6 * Permission to use, copy, modify, distribute, and sell this software and its
7 * documentation for any purpose is hereby granted without fee, provided that
8 * the above copyright notice appear in all copies and that both that
9 * copyright notice and this permission notice appear in supporting
10 * documentation, and that the name of SuSE not be used in advertising or
11 * publicity pertaining to distribution of the software without specific,
12 * written prior permission.  SuSE makes no representations about the
13 * suitability of this software for any purpose.  It is provided "as is"
14 * without express or implied warranty.
15 *
16 * SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE
18 * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
19 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
20 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
21 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
22 */
23
24#ifdef HAVE_CONFIG_H
25#include <config.h>
26#endif
27#include "pixman-private.h"
28
29void
30_pixman_solid_fill_iter_init (pixman_image_t *image, pixman_iter_t  *iter)
31{
32    if (iter->iter_flags & ITER_NARROW)
33    {
34	uint32_t *b = (uint32_t *)iter->buffer;
35	uint32_t *e = b + iter->width;
36	uint32_t color = iter->image->solid.color_32;
37
38	while (b < e)
39	    *(b++) = color;
40    }
41    else
42    {
43	argb_t *b = (argb_t *)iter->buffer;
44	argb_t *e = b + iter->width;
45	argb_t color = image->solid.color_float;
46
47	while (b < e)
48	    *(b++) = color;
49    }
50
51    iter->get_scanline = _pixman_iter_get_scanline_noop;
52}
53
54static uint32_t
55color_to_uint32 (const pixman_color_t *color)
56{
57    return
58        (color->alpha >> 8 << 24) |
59        (color->red >> 8 << 16) |
60        (color->green & 0xff00) |
61        (color->blue >> 8);
62}
63
64static argb_t
65color_to_float (const pixman_color_t *color)
66{
67    argb_t result;
68
69    result.a = pixman_unorm_to_float (color->alpha, 16);
70    result.r = pixman_unorm_to_float (color->red, 16);
71    result.g = pixman_unorm_to_float (color->green, 16);
72    result.b = pixman_unorm_to_float (color->blue, 16);
73
74    return result;
75}
76
77PIXMAN_EXPORT pixman_image_t *
78pixman_image_create_solid_fill (const pixman_color_t *color)
79{
80    pixman_image_t *img = _pixman_image_allocate ();
81
82    if (!img)
83	return NULL;
84
85    img->type = SOLID;
86    img->solid.color = *color;
87    img->solid.color_32 = color_to_uint32 (color);
88    img->solid.color_float = color_to_float (color);
89
90    return img;
91}
92
93