Add a dirty bit to the image struct, and validate before using the image.
[profile/ivi/pixman.git] / pixman / pixman-solid-fill.c
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
29 static void
30 solid_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     register uint32_t color = ((solid_fill_t *)image)->color;
40
41     while (buffer < end)
42         *(buffer++) = color;
43
44     return;
45 }
46
47 static source_image_class_t
48 solid_fill_classify (pixman_image_t *image,
49                      int             x,
50                      int             y,
51                      int             width,
52                      int             height)
53 {
54     return (image->source.class = SOURCE_IMAGE_CLASS_HORIZONTAL);
55 }
56
57 static void
58 solid_fill_property_changed (pixman_image_t *image)
59 {
60     image->common.get_scanline_32 = solid_fill_get_scanline_32;
61     image->common.get_scanline_64 = _pixman_image_get_scanline_generic_64;
62 }
63
64 static uint32_t
65 color_to_uint32 (const pixman_color_t *color)
66 {
67     return
68         (color->alpha >> 8 << 24) |
69         (color->red >> 8 << 16) |
70         (color->green & 0xff00) |
71         (color->blue >> 8);
72 }
73
74 PIXMAN_EXPORT pixman_image_t *
75 pixman_image_create_solid_fill (pixman_color_t *color)
76 {
77     pixman_image_t *img = _pixman_image_allocate ();
78
79     if (!img)
80         return NULL;
81
82     img->type = SOLID;
83     img->solid.color = color_to_uint32 (color);
84
85     img->source.class = SOURCE_IMAGE_CLASS_UNKNOWN;
86     img->common.classify = solid_fill_classify;
87     img->common.property_changed = solid_fill_property_changed;
88
89     return img;
90 }
91