1 /*
2  Copyright (c) 2013 yvt
3 
4  This file is part of OpenSpades.
5 
6  OpenSpades is free software: you can redistribute it and/or modify
7  it under the terms of the GNU General Public License as published by
8  the Free Software Foundation, either version 3 of the License, or
9  (at your option) any later version.
10 
11  OpenSpades is distributed in the hope that it will be useful,
12  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  GNU General Public License for more details.
15 
16  You should have received a copy of the GNU General Public License
17  along with OpenSpades.  If not, see <http://www.gnu.org/licenses/>.
18 
19  */
20 
21 #pragma once
22 
23 #include "IGLDevice.h"
24 
25 namespace spades {
26 	namespace draw {
27 
28 		/** draws a quad for post filters.
29 		 * load program by yourself, and GLQuadRenderer does
30 		 * setting vertex attributes and drawing. */
31 		class GLQuadRenderer {
32 			IGLDevice *device;
33 
34 			IGLDevice::UInteger attrIndex;
35 
36 		public:
37 			GLQuadRenderer(IGLDevice *);
38 			~GLQuadRenderer();
39 
40 			/** specifies the index of an attribute that
41 			 * indicates the coordinate in [0, 1] */
42 			void SetCoordAttributeIndex(IGLDevice::UInteger);
43 
44 			void Draw();
45 		};
46 	}
47 }