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_GFX_OPENGL_SURFACE_H
24 #define STARK_GFX_OPENGL_SURFACE_H
25 
26 #include "engines/stark/gfx/surfacerenderer.h"
27 #include "engines/stark/gfx/opengl.h"
28 
29 #include "math/vector2d.h"
30 
31 #if defined(USE_OPENGL_GAME)
32 
33 namespace Stark {
34 namespace Gfx {
35 
36 class OpenGLDriver;
37 class Texture;
38 
39 struct _SurfaceVertex {
40 	float x;
41 	float y;
42 };
43 typedef _SurfaceVertex SurfaceVertex;
44 
45 /**
46  * An programmable pipeline OpenGL surface renderer
47  */
48 class OpenGLSurfaceRenderer : public SurfaceRenderer {
49 public:
50 	OpenGLSurfaceRenderer(OpenGLDriver *gfx);
51 	virtual ~OpenGLSurfaceRenderer();
52 
53 	// SurfaceRenderer API
54 	void render(const Texture *texture, const Common::Point &dest) override;
55 	void render(const Texture *texture, const Common::Point &dest, uint width, uint height) override;
56 
57 private:
58 	Math::Vector2d normalizeOriginalCoordinates(int x, int y) const;
59 	Math::Vector2d normalizeCurrentCoordinates(int x, int y) const;
60 
61 	OpenGLDriver *_gfx;
62 };
63 
64 } // End of namespace Gfx
65 } // End of namespace Stark
66 
67 #endif // defined(USE_OPENGL_GAME)
68 
69 #endif // STARK_GFX_OPENGL_SURFACE_H
70