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 GROOVIE_GRAPHICS_H
24 #define GROOVIE_GRAPHICS_H
25 
26 #include "graphics/surface.h"
27 
28 namespace Groovie {
29 
30 class GroovieEngine;
31 
32 class GraphicsMan {
33 public:
34 	GraphicsMan(GroovieEngine *vm);
35 	~GraphicsMan();
36 
37 	// Buffers
38 	void update();
39 	void change();
40 	void mergeFgAndBg();
41 	void switchToFullScreen(bool fullScreen);
isFullScreen()42 	bool isFullScreen() { return (_foreground.h == 480); }
43 	void updateScreen(Graphics::Surface *source);
44 	Graphics::Surface _foreground;	// The main surface that most things are drawn to
45 	Graphics::Surface _background;	// Used occasionally, mostly (only?) in puzzles
46 
47 	// Palette fading
48 	bool isFading();
49 	void fadeIn(byte *pal);
50 	void fadeOut();
51 
52 private:
53 	GroovieEngine *_vm;
54 
55 	bool _changed;
56 
57 	// Palette fading
58 	void applyFading(int step);
59 	int _fading;
60 	byte _paletteFull[256 * 3];
61 	uint32 _fadeStartTime;
62 };
63 
64 } // End of Groovie namespace
65 
66 #endif // GROOVIE_GRAPHICS_H
67