96 lines
2.7 KiB
C++
96 lines
2.7 KiB
C++
/*
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epple2
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Copyright (C) 2008 by Christopher A. Mosher <cmosher01@gmail.com>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY, without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "a2colorsobserved.h"
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static unsigned char tobyt(float x)
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{
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x *= 256.0f;
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x += 0.0001f;
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int xi = (int)x;
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if (xi > 255)
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xi = 255;
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return (unsigned char)xi;
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}
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// 0 <= h < 360 degrees; 0 <= s,v <= 1
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static int HSVtoRGB(const int h, const float s, const float v)
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{
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const float f = (h % 60) / 60.0;
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float r, g, b;
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switch (h / 60)
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{
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case 0:
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r = v;
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g = v * (1 - s * (1 - f));
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b = v * (1 - s);
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break;
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case 1:
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r = v * (1 - s * f);
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g = v;
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b = v * (1 - s);
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break;
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case 2:
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r = v * (1 - s);
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g = v;
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b = v * (1 - s * (1 - f));
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break;
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case 3:
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r = v * (1 - s);
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g = v * (1 - s * f);
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b = v;
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break;
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case 4:
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r = v * (1 - s * (1 - f));
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g = v * (1 - s);
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b = v;
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break;
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case 5:
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r = v;
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g = v * (1 - s);
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b = v * (1 - s * f);
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break;
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default:
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r = g = b = 0;
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}
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return (tobyt(r) << 16) | (tobyt(g) << 8) | (tobyt(b));
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}
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A2ColorsObserved::A2ColorsObserved():
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COLOR(0x10)
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{
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// const unsigned int clr[] = { 0x1, 0xB, 0x3, 0x2, 0x7, 0x6, 0x4, 0xE, 0xC, 0x8, 0xD, 0x9, 0x5, 0xA, 0xF, 0x0 };
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const unsigned int map[] = { 0xF, 0x0, 0x3, 0x2, 0x6, 0xC, 0x5, 0x4, 0x9, 0xB, 0xD, 0x1, 0x8, 0xA, 0x7, 0xE };
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const unsigned int hue[] = { 342, 342, 277, 233, 233, 213, 160, 160, 75, 33, 52, 24, 0, 0, 0, 0 };
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const unsigned int sat[] = { 100, 50, 75, 100, 50, 100, 100, 100, 100, 100, 100, 100, 0, 0, 0, 0 };
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const unsigned int val[] = { 67, 100, 100, 75, 100, 100, 33, 100, 75, 50, 100, 100, 50, 50, 100, 0 };
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for (unsigned int i(0); i < COLOR.size(); ++i)
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{
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COLOR[i] = HSVtoRGB(hue[map[i]],sat[map[i]]/100.0f,val[map[i]]/100.0f);
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}
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}
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A2ColorsObserved::~A2ColorsObserved()
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{
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}
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