source/libs/pixman/pixman-src/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 uint32_t
  30 color_to_uint32 (const pixman_color_t *color)
  31 {
  32     return
  33         (color->alpha >> 8 << 24) |
  34         (color->red >> 8 << 16) |
  35         (color->green & 0xff00) |
  36         (color->blue >> 8);
  37 }
  38
  39 static argb_t
  40 color_to_float (const pixman_color_t *color)
  41 {
  42     argb_t result;
  43
  44     result.a = pixman_unorm_to_float (color->alpha, 16);
  45     result.r = pixman_unorm_to_float (color->red, 16);
  46     result.g = pixman_unorm_to_float (color->green, 16);
  47     result.b = pixman_unorm_to_float (color->blue, 16);
  48
  49     return result;
  50 }
  51
  52 PIXMAN_EXPORT pixman_image_t *
  53 pixman_image_create_solid_fill (const pixman_color_t *color)
  54 {
  55     pixman_image_t *img = _pixman_image_allocate ();
  56
  57     if (!img)
  58         return NULL;
  59
  60     img->type = SOLID;
  61     img->solid.color = *color;
  62     img->solid.color_32 = color_to_uint32 (color);
  63     img->solid.color_float = color_to_float (color);
  64
  65     return img;
  66 }
  67