pixman-solid-fill.c revision 952204ab 
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
29static void
30solid_fill_get_scanline_32 (pixman_image_t *image,
31                            int             x,
32                            int             y,
33                            int             width,
34                            uint32_t *      buffer,
35                            const uint32_t *mask,
36                            uint32_t        mask_bits)
37{
38    uint32_t *end = buffer + width;
39    uint32_t color = image->solid.color_32;
40
41    while (buffer < end)
42	*(buffer++) = color;
43
44    return;
45}
46
47static void
48solid_fill_get_scanline_64 (pixman_image_t *image,
49			    int             x,
50			    int             y,
51			    int             width,
52			    uint32_t *      buffer,
53			    const uint32_t *mask,
54			    uint32_t        mask_bits)
55{
56    uint64_t *b = (uint64_t *)buffer;
57    uint64_t *e = b + width;
58    uint64_t color = image->solid.color_64;
59
60    while (b < e)
61	*(b++) = color;
62}
63
64static source_image_class_t
65solid_fill_classify (pixman_image_t *image,
66                     int             x,
67                     int             y,
68                     int             width,
69                     int             height)
70{
71    return (image->source.class = SOURCE_IMAGE_CLASS_HORIZONTAL);
72}
73
74static void
75solid_fill_property_changed (pixman_image_t *image)
76{
77    image->common.get_scanline_32 = solid_fill_get_scanline_32;
78    image->common.get_scanline_64 = solid_fill_get_scanline_64;
79}
80
81static uint32_t
82color_to_uint32 (const pixman_color_t *color)
83{
84    return
85        (color->alpha >> 8 << 24) |
86        (color->red >> 8 << 16) |
87        (color->green & 0xff00) |
88        (color->blue >> 8);
89}
90
91static uint64_t
92color_to_uint64 (const pixman_color_t *color)
93{
94    return
95        ((uint64_t)color->alpha << 48) |
96        ((uint64_t)color->red << 32) |
97        ((uint64_t)color->green << 16) |
98        ((uint64_t)color->blue);
99}
100
101PIXMAN_EXPORT pixman_image_t *
102pixman_image_create_solid_fill (pixman_color_t *color)
103{
104    pixman_image_t *img = _pixman_image_allocate ();
105
106    if (!img)
107	return NULL;
108
109    img->type = SOLID;
110    img->solid.color = *color;
111    img->solid.color_32 = color_to_uint32 (color);
112    img->solid.color_64 = color_to_uint64 (color);
113
114    img->source.class = SOURCE_IMAGE_CLASS_UNKNOWN;
115    img->common.classify = solid_fill_classify;
116    img->common.property_changed = solid_fill_property_changed;
117
118    return img;
119}
120
121