Mir
primitive.h
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1 /*
2  * Copyright © 2014 Canonical Ltd.
3  *
4  * This program is free software: you can redistribute it and/or modify it
5  * under the terms of the GNU Lesser General Public License version 3,
6  * as published by the Free Software Foundation.
7  *
8  * This program is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11  * GNU Lesser General Public License for more details.
12  *
13  * You should have received a copy of the GNU Lesser General Public License
14  * along with this program. If not, see <http://www.gnu.org/licenses/>.
15  *
16  * Authored by: Daniel van Vugt <daniel.van.vugt@canonical.com>
17  * Kevin DuBois <kevin.dubois@canonical.com>
18  */
19 
20 #ifndef MIR_GL_PRIMITIVE_H_
21 #define MIR_GL_PRIMITIVE_H_
22 
23 #include <GLES2/gl2.h>
24 
25 namespace mir
26 {
27 namespace gl
28 {
29 struct Vertex
30 {
31  GLfloat position[3];
32  GLfloat texcoord[2];
33 };
34 
35 struct Primitive
36 {
37  enum {max_vertices = 4};
38 
40  : type(GL_TRIANGLE_FAN), nvertices(4)
41  {
42  // Default is a quad. Just need to assign vertices[] and tex_id.
43  }
44 
45  GLenum type; // GL_TRIANGLE_STRIP, GL_TRIANGLE_FAN, GL_TRIANGLES etc
46  GLuint tex_id; // GL texture ID (or 0 to represent the surface itself)
47  int nvertices;
49 };
50 }
51 }
52 #endif /* MIR_GL_PRIMITIVE_H_ */
All things Mir.
Definition: atomic_callback.h:25
GLfloat texcoord[2]
Definition: primitive.h:32
Definition: primitive.h:29
GLenum type
Definition: primitive.h:45
Vertex vertices[max_vertices]
Definition: primitive.h:48
Definition: primitive.h:35
GLuint tex_id
Definition: primitive.h:46
GLfloat position[3]
Definition: primitive.h:31
Definition: primitive.h:37
Primitive()
Definition: primitive.h:39
int nvertices
Definition: primitive.h:47

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