| 1 | /* |
| 2 | Copyright (C) 2003 Rice1964 |
| 3 | |
| 4 | This program is free software; you can redistribute it and/or |
| 5 | modify it under the terms of the GNU General Public License |
| 6 | as published by the Free Software Foundation; either version 2 |
| 7 | of the License, or (at your option) any later version. |
| 8 | |
| 9 | This program is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | GNU General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU General Public License |
| 15 | along with this program; if not, write to the Free Software |
| 16 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 17 | |
| 18 | */ |
| 19 | |
| 20 | #ifndef _ICOLOR_H_ |
| 21 | #define _ICOLOR_H_ |
| 22 | |
| 23 | #ifndef min |
| 24 | #define min(a,b) ((a) < (b) ? (a) : (b)) |
| 25 | #endif |
| 26 | #ifndef max |
| 27 | #define max(a,b) ((a) > (b) ? (a) : (b)) |
| 28 | #endif |
| 29 | |
| 30 | class IColor { |
| 31 | public: |
| 32 | uint8 r; |
| 33 | uint8 g; |
| 34 | uint8 b; |
| 35 | uint8 a; |
| 36 | |
| 37 | IColor(COLOR rgba) |
| 38 | { |
| 39 | *((COLOR*)this) = rgba; |
| 40 | } |
| 41 | |
| 42 | IColor() |
| 43 | { |
| 44 | *((COLOR*)this) = 0; |
| 45 | } |
| 46 | |
| 47 | IColor(XCOLOR &rgba) |
| 48 | { |
| 49 | *((COLOR*)this) = (unsigned int) rgba; |
| 50 | } |
| 51 | |
| 52 | inline IColor operator = (const IColor &sec) const |
| 53 | { |
| 54 | *((COLOR*)this) = *((COLOR*)&sec); |
| 55 | return *this; |
| 56 | } |
| 57 | |
| 58 | inline IColor operator = (COLOR col) const |
| 59 | { |
| 60 | *((COLOR*)this) = col; |
| 61 | return *this; |
| 62 | } |
| 63 | |
| 64 | inline IColor operator + (const IColor &sec) const |
| 65 | { |
| 66 | IColor newc; |
| 67 | newc.r = (uint8)min((unsigned int) r + (unsigned int) sec.r, 0xFF); |
| 68 | newc.g = (uint8)min((unsigned int) g + (unsigned int) sec.g, 0xFF); |
| 69 | newc.b = (uint8)min((unsigned int) b + (unsigned int) sec.b, 0xFF); |
| 70 | newc.a = (uint8)min((unsigned int) a + (unsigned int) sec.a, 0xFF); |
| 71 | |
| 72 | return newc; |
| 73 | } |
| 74 | |
| 75 | inline IColor operator - (const IColor &sec) const |
| 76 | { |
| 77 | IColor newc; |
| 78 | newc.r = max(int(r)-int(sec.r),0); |
| 79 | newc.g = max(int(g)-int(sec.g),0); |
| 80 | newc.b = max(int(b)-int(sec.b),0); |
| 81 | newc.a = max(int(a)-int(sec.a),0); |
| 82 | |
| 83 | return newc; |
| 84 | } |
| 85 | inline IColor operator * (const IColor &sec) const |
| 86 | { |
| 87 | IColor newc; |
| 88 | newc.r = (uint8)min((unsigned int) r * (unsigned int) sec.r / 256,255); |
| 89 | newc.g = (uint8)min((unsigned int) g * (unsigned int) sec.g / 256,255); |
| 90 | newc.b = (uint8)min((unsigned int) b * (unsigned int) sec.b / 256,255); |
| 91 | newc.a = (uint8)min((unsigned int) a * (unsigned int) sec.a / 256,255); |
| 92 | return newc; |
| 93 | } |
| 94 | |
| 95 | inline IColor& operator += (const IColor &sec) |
| 96 | { |
| 97 | r = uint8(min((unsigned int) r + (unsigned int) sec.r, 255)); |
| 98 | g = uint8(min((unsigned int) g + (unsigned int) sec.g, 255)); |
| 99 | b = uint8(min((unsigned int) b + (unsigned int) sec.b, 255)); |
| 100 | a = uint8(min((unsigned int) a + (unsigned int) sec.a, 255)); |
| 101 | return *this; |
| 102 | } |
| 103 | |
| 104 | inline IColor& operator -= (const IColor &sec) |
| 105 | { |
| 106 | r = uint8(max(int(r)-int(sec.r),0)); |
| 107 | g = uint8(max(int(g)-int(sec.g),0)); |
| 108 | b = uint8(max(int(b)-int(sec.b),0)); |
| 109 | a = uint8(max(int(a)-int(sec.a),0)); |
| 110 | return *this; |
| 111 | } |
| 112 | |
| 113 | inline IColor& operator *= (const IColor &sec) |
| 114 | { |
| 115 | r = uint8(min((unsigned int) r * (unsigned int) sec.r / 256,255)); |
| 116 | g = uint8(min((unsigned int) g * (unsigned int) sec.g / 256,255)); |
| 117 | b = uint8(min((unsigned int) b * (unsigned int) sec.b / 256,255)); |
| 118 | a = uint8(min((unsigned int) a * (unsigned int) sec.a / 256,255)); |
| 119 | return *this; |
| 120 | } |
| 121 | |
| 122 | inline IColor& operator += (XCOLOR val) |
| 123 | { |
| 124 | IColor newc(val); |
| 125 | return this->operator += (newc); |
| 126 | } |
| 127 | |
| 128 | inline IColor& operator -= (XCOLOR val) |
| 129 | { |
| 130 | IColor newc(val); |
| 131 | return this->operator-=(newc); |
| 132 | } |
| 133 | |
| 134 | inline IColor& operator *= (XCOLOR val) |
| 135 | { |
| 136 | IColor newc(val); |
| 137 | return this->operator*=(newc); |
| 138 | } |
| 139 | |
| 140 | inline IColor operator + (XCOLOR val) const |
| 141 | { |
| 142 | IColor newc(val); |
| 143 | return this->operator+(newc); |
| 144 | } |
| 145 | |
| 146 | inline IColor operator - (XCOLOR val) const |
| 147 | { |
| 148 | IColor newc(val); |
| 149 | return this->operator-(newc); |
| 150 | } |
| 151 | |
| 152 | inline IColor operator * (XCOLOR val) const |
| 153 | { |
| 154 | IColor newc(val); |
| 155 | return this->operator*(newc); |
| 156 | } |
| 157 | |
| 158 | inline operator COLOR() const |
| 159 | { |
| 160 | return *((COLOR*)this); |
| 161 | } |
| 162 | |
| 163 | inline operator XCOLOR() const |
| 164 | { |
| 165 | XCOLOR rgba; |
| 166 | rgba.r = (float)r/256.0f; |
| 167 | rgba.g = (float)g/256.0f; |
| 168 | rgba.b = (float)b/256.0f; |
| 169 | rgba.a = (float)a/256.0f; |
| 170 | |
| 171 | return rgba; |
| 172 | } |
| 173 | |
| 174 | inline void Complement() |
| 175 | { |
| 176 | r = 0xFF-r; |
| 177 | g = 0xFF-g; |
| 178 | b = 0xFF-b; |
| 179 | a = 0xFF-a; |
| 180 | } |
| 181 | |
| 182 | inline void AlphaReplicate() |
| 183 | { |
| 184 | r=g=b=a; |
| 185 | } |
| 186 | }; |
| 187 | |
| 188 | |
| 189 | #endif |
| 190 | |
| 191 | |