1 /* ResidualVM - A 3D game interpreter
2  *
3  * ResidualVM is the legal property of its developers, whose names
4  * are too numerous to list here. Please refer to the AUTHORS
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 STARK_VISUAL_EFFECTS_EFFECT_H
24 #define STARK_VISUAL_EFFECTS_EFFECT_H
25 
26 #include "engines/stark/visual/visual.h"
27 
28 #include "common/rect.h"
29 
30 #include "graphics/pixelformat.h"
31 
32 namespace Graphics {
33 struct Surface;
34 }
35 
36 namespace Stark {
37 
38 namespace Gfx {
39 class Driver;
40 class SurfaceRenderer;
41 class Texture;
42 }
43 
44 /**
45  * A 2D visual effect overlay
46  *
47  * The backing surface is alpha blended on top of the scene
48  */
49 class VisualEffect : public Visual {
50 public:
51 	explicit VisualEffect(VisualType type, const Common::Point &size, Gfx::Driver *gfx);
52 	~VisualEffect() override;
53 
54 protected:
55 	Gfx::Driver *_gfx;
56 	Gfx::SurfaceRenderer *_surfaceRenderer;
57 	Gfx::Texture *_texture;
58 	Graphics::Surface *_surface;
59 
60 	uint _timeBetweenTwoUpdates;
61 	int _timeRemainingUntilNextUpdate;
62 	Common::Point _size;
63 };
64 
65 } // End of namespace Stark
66 
67 #endif // STARK_VISUAL_EFFECTS_EFFECT_H
68