wsutil/color.h

   1 /** @file
   2  *
   3  * Definitions for colors
   4  *
   5  * Wireshark - Network traffic analyzer
   6  * By Gerald Combs <gerald@wireshark.org>
   7  * Copyright 1998 Gerald Combs
   8  *
   9  * SPDX-License-Identifier: GPL-2.0-or-later
  10  */
  11 #ifndef  __COLOR_H__
  12 #define  __COLOR_H__
  13
  14 #ifdef __cplusplus
  15 extern "C" {
  16 #endif /* __cplusplus */
  17
  18 #include <inttypes.h>
  19
  20 /*
  21  * Data structure holding RGB value for a color, 16 bits per channel.
  22  */
  23 typedef struct {
  24     uint16_t red;
  25     uint16_t green;
  26     uint16_t blue;
  27 } color_t;
  28
  29 /*
  30  * Convert a color_t to a 24-bit RGB value, reducing each channel to
  31  * 8 bits and combining them.
  32  */
  33 inline static unsigned int
  34 color_t_to_rgb(const color_t *color) {
  35     return (((color->red >> 8) << 16)
  36           | ((color->green >> 8) << 8)
  37           | (color->blue >> 8));
  38 }
  39
  40 #ifdef __cplusplus
  41 }
  42 #endif /* __cplusplus */
  43
  44 #endif
  45
  46 /*
  47  * Editor modelines  -  https://www.wireshark.org/tools/modelines.html
  48  *
  49  * Local variables:
  50  * c-basic-offset: 4
  51  * tab-width: 8
  52  * indent-tabs-mode: nil
  53  * End:
  54  *
  55  * vi: set shiftwidth=4 tabstop=8 expandtab:
  56  * :indentSize=4:tabSize=8:noTabs=true:
  57  */