111 lines
3.8 KiB
C++
111 lines
3.8 KiB
C++
/*
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Open Tracker License
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Terms and Conditions
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Copyright (c) 1991-2000, Be Incorporated. All rights reserved.
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal in
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is furnished to do
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so, subject to the following conditions:
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The above copyright notice and this permission notice applies to all licensees
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and shall be included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF TITLE, MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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BE INCORPORATED BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF, OR IN CONNECTION
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of Be Incorporated shall not be
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used in advertising or otherwise to promote the sale, use or other dealings in
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this Software without prior written authorization from Be Incorporated.
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Tracker(TM), Be(R), BeOS(R), and BeIA(TM) are trademarks or registered trademarks
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of Be Incorporated in the United States and other countries. Other brand product
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names are registered trademarks or trademarks of their respective holders.
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All rights reserved.
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*/
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/*******************************************************************************
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/
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/ File: ColorTools.cpp
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/
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/ Description: Additional experimental color manipulation functions.
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/
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/ Copyright 2000, Be Incorporated, All Rights Reserved
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/
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*******************************************************************************/
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#include "ColorTools.h"
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#if B_BEOS_VERSION <= B_BEOS_VERSION_MAUI
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namespace BExperimental {
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#if DEBUG
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#define DB_INLINE
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#else
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#define DB_INLINE inline
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#endif
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static DB_INLINE void mix_color_func(rgb_color* target, const rgb_color other, uint8 amount)
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{
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target->red = (uint8)( ((int16(other.red)-int16(target->red))*amount)/255
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+ target->red );
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target->green = (uint8)( ((int16(other.green)-int16(target->green))*amount)/255
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+ target->green );
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target->blue = (uint8)( ((int16(other.blue)-int16(target->blue))*amount)/255
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+ target->blue );
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target->alpha = (uint8)( ((int16(other.alpha)-int16(target->alpha))*amount)/255
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+ target->alpha );
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}
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static DB_INLINE void blend_color_func(rgb_color* target, const rgb_color other, uint8 amount)
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{
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const uint8 alphaMix = (uint8)( ((int16(other.alpha)-int16(255-target->alpha))*amount)/255
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+ (255-target->alpha) );
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target->red = (uint8)( ((int16(other.red)-int16(target->red))*alphaMix)/255
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+ target->red );
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target->green = (uint8)( ((int16(other.green)-int16(target->green))*alphaMix)/255
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+ target->green );
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target->blue = (uint8)( ((int16(other.blue)-int16(target->blue))*alphaMix)/255
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+ target->blue );
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target->alpha = (uint8)( ((int16(other.alpha)-int16(target->alpha))*amount)/255
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+ target->alpha );
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}
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static DB_INLINE void disable_color_func(rgb_color* target, const rgb_color background)
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{
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blend_color_func(target, background, 255-70);
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}
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// --------------------------------------------------------------------------
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rgb_color mix_color(rgb_color color1, rgb_color color2, uint8 amount)
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{
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mix_color_func(&color1, color2, amount);
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return color1;
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}
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rgb_color blend_color(rgb_color color1, rgb_color color2, uint8 amount)
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{
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blend_color_func(&color1, color2, amount);
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return color1;
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}
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rgb_color disable_color(rgb_color color, rgb_color background)
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{
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disable_color_func(&color, background);
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return color;
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}
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}
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#endif
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