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author | Paweł Kołodziejski | 2002-08-24 15:31:37 +0000 |
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committer | Paweł Kołodziejski | 2002-08-24 15:31:37 +0000 |
commit | 9f993a1d29120120b3d9c08d56ca1990f4222ae5 (patch) | |
tree | 751e3cfdc133f1abf27d6ff35b9b6a2c329bf3a0 /scumm/smush/color.cpp | |
parent | fa181fcd8b6956821f4f8585f3124e9cf0214303 (diff) | |
download | scummvm-rg350-9f993a1d29120120b3d9c08d56ca1990f4222ae5.tar.gz scummvm-rg350-9f993a1d29120120b3d9c08d56ca1990f4222ae5.tar.bz2 scummvm-rg350-9f993a1d29120120b3d9c08d56ca1990f4222ae5.zip |
synced with scummvm
svn-id: r4821
Diffstat (limited to 'scumm/smush/color.cpp')
-rw-r--r-- | scumm/smush/color.cpp | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/scumm/smush/color.cpp b/scumm/smush/color.cpp new file mode 100644 index 0000000000..e88785ccbd --- /dev/null +++ b/scumm/smush/color.cpp @@ -0,0 +1,69 @@ +/* ScummVM - Scumm Interpreter + * Copyright (C) 2001/2002 The ScummVM project + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + * $Header$ + * + */ + +#include <stdafx.h> +#include "color.h" + +Color::Color() : _r(0), _g(0), _b(0) { +} + +Color::Color(value_type r, value_type g, value_type b) : _r(r), _g(g), _b(b) { +} + +Color::Color(const Color & c) : _r(c._r), _g(c._g), _b(c._b) { +} + +Color & Color::operator=(const Color & c) { + _r = c._r; + _g = c._g; + _b = c._b; + return *this; +} + +Color::~Color() { +} + +Color::value_type Color::red() const { + return _r; +} + +Color::value_type Color::green() const { + return _g; +} + +Color::value_type Color::blue() const { + return _b; +} + +void Color::delta(short * ptr) { + // This is a very specific method for XPALs. + int t; +#define UPDATE_COLOR(c, inc) (((int)((c)) << 7) + (c) + (inc)) >> 7 +#define CHECK_BOUNDS(c) (((c) > 255) ? 255 : (((c) < 0) ? 0 : (c))) + t = UPDATE_COLOR(_r, ptr[0]); + _r = CHECK_BOUNDS(t); + t = UPDATE_COLOR(_g, ptr[1]); + _g = CHECK_BOUNDS(t); + t = UPDATE_COLOR(_b, ptr[2]); + _b = CHECK_BOUNDS(t); +#undef UPDATE_COLOR +#undef CHECK_BOUNDS +} |