mango_engine.graphics.opengl.gl_renderer source code

1 /*
2  *  BSD 3-Clause License
3  *  
4  *  Copyright (c) 2016, Mango-Engine Team
5  *  All rights reserved.
6  *  
7  *  Redistribution and use in source and binary forms, with or without
8  *  modification, are permitted provided that the following conditions are met:
9  *  
10  *  * Redistributions of source code must retain the above copyright notice, this
11  *    list of conditions and the following disclaimer.
12  *  
13  *  * Redistributions in binary form must reproduce the above copyright notice,
14  *    this list of conditions and the following disclaimer in the documentation
15  *    and/or other materials provided with the distribution.
16  *  
17  *  * Neither the name of the copyright holder nor the names of its
18  *    contributors may be used to endorse or promote products derived from
19  *    this software without specific prior written permission.
20  *  
21  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
22  *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
24  *  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
25  *  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  *  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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30  *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32 module mango_engine.graphics.opengl.gl_renderer;
33 
34 import mango_engine.game;
35 import mango_engine.exception;
36 import mango_engine.graphics.model;
37 import mango_engine.graphics.renderer;
38 import mango_engine.graphics.opengl.gl_model;
39 import mango_engine.graphics.opengl.gl_backend;
40 
41 import derelict.opengl3.gl3;
42 
43 class GLRenderer : Renderer {
44     // TODO: Remove renderer class?
45 
46     /// Use Renderer.rendererFactory()
47     this(GameManager game) @safe {
48         super(game);
49 
50         gl_check();
51 
52         setup();
53     }
54 
55     private void setup() @trusted {
56         glClearColor(0f, 100f, 0f, 0f);
57         glEnable(GL_TEXTURE_2D);
58     }
59 
60     override {
61         protected void prepareRender() @system {
62             super.prepareRender();
63             glClear(GL_COLOR_BUFFER_BIT);
64         }
65 
66         protected void renderModel(shared Model model_) @system {
67             shared GLModel model = cast(shared GLModel) model_;
68             if(model is null) {
69                 throw new InvalidArgumentException("Cannot render Model not of type GLModel.");
70             }
71 
72             (cast(GLModel) model_).render(this);
73         }
74 
75         protected void finishRender() @system {
76             super.finishRender();
77             (cast(shared) this.game.window).updateBuffers();
78         }
79     }
80 }