pixman-solid-fill.c revision 953d7d37 
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,
31			      pixman_iter_t  *iter,
32			      int x, int y, int width, int height,
33			      uint8_t *buffer, iter_flags_t flags)
34{
35    if (flags & ITER_NARROW)
36    {
37	uint32_t *b = (uint32_t *)buffer;
38	uint32_t *e = b + width;
39	uint32_t color = image->solid.color_32;
40
41	while (b < e)
42	    *(b++) = color;
43    }
44    else
45    {
46	uint64_t *b = (uint64_t *)buffer;
47	uint64_t *e = b + width;
48	uint64_t color = image->solid.color_64;
49
50	while (b < e)
51	    *(b++) = color;
52    }
53
54    iter->get_scanline = _pixman_iter_get_scanline_noop;
55}
56
57static uint32_t
58color_to_uint32 (const pixman_color_t *color)
59{
60    return
61        (color->alpha >> 8 << 24) |
62        (color->red >> 8 << 16) |
63        (color->green & 0xff00) |
64        (color->blue >> 8);
65}
66
67static uint64_t
68color_to_uint64 (const pixman_color_t *color)
69{
70    return
71        ((uint64_t)color->alpha << 48) |
72        ((uint64_t)color->red << 32) |
73        ((uint64_t)color->green << 16) |
74        ((uint64_t)color->blue);
75}
76
77PIXMAN_EXPORT pixman_image_t *
78pixman_image_create_solid_fill (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_64 = color_to_uint64 (color);
89
90    return img;
91}
92
93