Developer Documentation

ScreenQuad.hh
1 /*===========================================================================*\
2 * *
3 * OpenFlipper *
4 * Copyright (c) 2001-2015, RWTH-Aachen University *
5 * Department of Computer Graphics and Multimedia *
6 * All rights reserved. *
7 * www.openflipper.org *
8 * *
9 *---------------------------------------------------------------------------*
10 * This file is part of OpenFlipper. *
11 *---------------------------------------------------------------------------*
12 * *
13 * Redistribution and use in source and binary forms, with or without *
14 * modification, are permitted provided that the following conditions *
15 * are met: *
16 * *
17 * 1. Redistributions of source code must retain the above copyright notice, *
18 * this list of conditions and the following disclaimer. *
19 * *
20 * 2. Redistributions in binary form must reproduce the above copyright *
21 * notice, this list of conditions and the following disclaimer in the *
22 * documentation and/or other materials provided with the distribution. *
23 * *
24 * 3. Neither the name of the copyright holder nor the names of its *
25 * contributors may be used to endorse or promote products derived from *
26 * this software without specific prior written permission. *
27 * *
28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS *
29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *
30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *
31 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER *
32 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, *
33 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, *
34 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR *
35 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF *
36 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING *
37 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS *
38 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
39 * *
40 \*===========================================================================*/
41
42
43 //=============================================================================
44 //
45 // CLASS ScreenQuad
46 //
47 //=============================================================================
48
49 #ifndef ACG_SCREENQUAD_HH
50 #define ACG_SCREENQUAD_HH
51
52
53 //== INCLUDES =================================================================
54
55 #include <vector>
56
57 #include <ACG/GL/gl.hh>
58 #include <ACG/GL/VertexDeclaration.hh>
59
60
61 //== NAMESPACES ===============================================================
62
63
64 namespace ACG {
65
66
67 //== CLASS DEFINITION =========================================================
68
69
72 class ACGDLLEXPORT ScreenQuad
73 {
74 public:
76 ~ScreenQuad();
77
78
84 static void draw(GLSL::Program* _prog = 0);
85
93 static void drawInstanced(int _count, GLSL::Program* _prog = 0);
94
95
104 static void drawTexture2D(GLuint _texture, const Vec2f& _offset = Vec2f(0.0f, 0.0f),
105 const Vec2f& _size = Vec2f(1.0f, 1.0f));
106
107 private:
108
110 ScreenQuad();
111
112
114 static ScreenQuad& instance();
115
117 void init();
118
120 void intDraw(GLSL::Program* _prog, int _numInstances = 0);
121
122
123
125 GLuint vbo_;
126
128 VertexDeclaration* decl_;
129
130
132 GLSL::Program* texDrawProg_;
133 };
134
135
136 //=============================================================================
137 } // namespace ACG
138 //=============================================================================
139 #endif // ACG_SCREENQUAD_HH defined
140 //=============================================================================
141
ACG::ScreenQuad::decl_
VertexDeclaration * decl_
vertex format of screen quad (float2 pos)
Definition: ScreenQuad.hh:128
ACG::Vec2f
VectorT< float, 2 > Vec2f
Definition: VectorT.hh:102
ACG
Namespace providing different geometric functions concerning angles.
Definition: BaseObjectData.hh:68
ACG::ScreenQuad::vbo_
GLuint vbo_
vbo containing the quad in projected coordinates
Definition: ScreenQuad.hh:125
ACG::VertexDeclaration
Class to define the vertex input layout.
Definition: VertexDeclaration.hh:268
OpenMesh::VectorT
Definition: Vector11T.hh:83
GLSL::Program
GLSL program class.
Definition: GLSLShader.hh:211
ACG::ScreenQuad
Definition: ScreenQuad.hh:72
ACG::ScreenQuad::texDrawProg_
GLSL::Program * texDrawProg_
Simple texture drawing shader.
Definition: ScreenQuad.hh:132