1 /* ScummVM - Graphic Adventure Engine
2  *
3  * ScummVM is the legal property of its developers, whose names
4  * are too numerous to list here. Please refer to the COPYRIGHT
5  * file distributed with this source distribution.
6  *
7  * This program is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU General Public License
9  * as published by the Free Software Foundation; either version 2
10  * of the License, or (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20  *
21  */
22 
23 #ifndef DRACI_SCREEN_H
24 #define DRACI_SCREEN_H
25 
26 #include "common/scummsys.h"
27 
28 namespace Draci {
29 
30 enum ScreenParameters {
31 	kScreenWidth = 320,
32 	kScreenHeight = 200,
33 	kNumColors = 256,
34 	kDefaultTransparent = 255
35 };
36 
37 class DraciEngine;
38 class Surface;
39 
40 class Screen {
41 
42 public:
43 	Screen(DraciEngine *vm);
44 	~Screen();
45 
46 	void setPalette(const byte *data, uint16 start, uint16 num);
47 	void interpolatePalettes(const byte *first, const byte *second, uint16 start, uint16 num, int index, int number);
getPalette()48 	const byte *getPalette() const { return _palette; }
49 	void copyToScreen();
50 	void clearScreen();
getSurface()51 	Surface *getSurface() { return _surface; }
52 
53 private:
54 	int interpolate(int first, int second, int index, int number);
55 
56 	Surface *_surface;
57 	byte *_palette;
58 	byte *_blackPalette;
59 	DraciEngine *_vm;
60 };
61 
62 } // End of namespace Draci
63 
64 #endif // DRACI_SCREEN_H
65