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spl_color.h
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/*
===============================================================================
| spl_color.h |
| https://github.com/mrsafalpiya/spl |
| |
| Color related helper functions |
| |
| No warranty implied; Use at your own risk |
| See end of file for license information. |
===============================================================================
*/
/*
===============================================================================
| Version History |
===============================================================================
*
- v0.1 (Current)
*/
/*
===============================================================================
| Usage |
===============================================================================
*
* Do this:
*
* #define SPLCOL_IMPL
*
* before you include this file in *one* C or C++ file to create the
* implementation.
*/
/*
===============================================================================
| HEADER-FILE MODE |
===============================================================================
*/
#ifndef SPLCOL_H
#define SPLCOL_H
/*
===============================================================================
| Options |
===============================================================================
*/
/* = SPLCOL = */
#ifndef SPLCOL_DEF
#define SPLCOL_DEF /* You may want `static` or `static inline` here */
#endif
/*
===============================================================================
| Macros |
===============================================================================
*/
/* = HEX CONVERSION = */
/* Convert hex color representation into 3 comma-separated uint8 values */
#define SPLCOL_HEX(hex) \
((hex) >> (2 * 8)) & 0xFF, ((hex) >> (1 * 8)) & 0xFF, \
((hex) >> (0 * 8)) & 0xFF
/* Convert hex color (including alpha) representation into 4 comma-separated
* uint8 values */
#define SPLCOL_HEXA(hex) \
((hex) >> (3 * 8)) & 0xFF, ((hex) >> (2 * 8)) & 0xFF, \
((hex) >> (1 * 8)) & 0xFF, ((hex) >> (0 * 8)) & 0xFF
/* Convert hex color (including alpha) representation into 4 comma-separated
* normalized float values (mainly for opengl) */
#define SPLCOL_HEXGL(hex) \
(float)(((hex) >> (3 * 8)) & 0xFF) / 255.0, \
(float)(((hex) >> (2 * 8)) & 0xFF) / 255.0, \
(float)(((hex) >> (1 * 8)) & 0xFF) / 255.0, \
(float)(((hex) >> (0 * 8)) & 0xFF) / 255.0
/*
===============================================================================
| Function Declarations |
===============================================================================
*/
#endif /* SPLCOL_H */
/*
===============================================================================
| IMPLEMENTATION MODE |
===============================================================================
*/
#ifdef SPLCOL_IMPL
/*
===============================================================================
| Function Implementations |
===============================================================================
*/
#endif /* SPLCOL_IMPL */
/*
===============================================================================
| License - Public Domain (www.unlicense.org) |
===============================================================================
*
* This is free and unencumbered software released into the public domain.
*
* Anyone is free to copy, modify, publish, use, compile, sell, or
* distribute this software, either in source code form or as a compiled
* binary, for any purpose, commercial or non-commercial, and by any
* means.
*
* In jurisdictions that recognize copyright laws, the author or authors
* of this software dedicate any and all copyright interest in the
* software to the public domain. We make this dedication for the benefit
* of the public at large and to the detriment of our heirs and
* successors. We intend this dedication to be an overt act of
* relinquishment in perpetuity of all present and future rights to this
* software under copyright law.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* For more information, please refer to <http://unlicense.org/>
*/