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63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
/*
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* Copyright (C) 2014 Freie Universität Berlin
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*
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* This file is subject to the terms and conditions of the GNU Lesser General
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* Public License v2.1. See the file LICENSE in the top level directory for more
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* details.
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*/
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/**
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* @defgroup sys_color Color
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* @ingroup sys
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* @brief The color sys module supports handling RGB and HSV color
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* @{
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*
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* @file
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* @brief Headers for the color handling module
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*
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* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
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*/
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#ifndef __COLOR_H
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#define __COLOR_H
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#include <stdint.h>
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/**
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* @brief Data-structure describing a RGB color
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*/
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typedef struct {
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uint8_t r; /**< red value [0 - 255] */
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uint8_t g; /**< green value [0 - 255] */
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uint8_t b; /**< blue value [0 - 255] */
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} color_rgb_t;
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/**
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* @brief Data-structure for holding HSV colors
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*/
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typedef struct {
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float h; /**< hue value [0.0 - 360.0] */
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float s; /**< saturation value [0.0 - 1.0] */
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float v; /**< value [0.0 - 1.0] */
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} color_hsv_t;
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/**
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* @brief Convert RGB color to HSV color
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*
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* @param[in] rgb Input color encoded in RGB space
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* @param[out] hsv Output color encoded in HSV space
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*/
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void color_rgb2hsv(color_rgb_t *rgb, color_hsv_t *hsv);
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/**
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* @brief Convert HSV color to RGB color
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*
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* @param[in] hsv Input color encoded in HSV space
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* @param[out] rgb Output color encoded in RGB space
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*/
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void color_hsv2rgb(color_hsv_t *hsv, color_rgb_t *rgb);
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#endif /* __COLOR_H */
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/** @} */
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