Developer Documentation
ScreenQuad.hh
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51 
52 //=============================================================================
53 //
54 // CLASS ScreenQuad
55 //
56 //=============================================================================
57 
58 #ifndef ACG_SCREENQUAD_HH
59 #define ACG_SCREENQUAD_HH
60 
61 
62 //== INCLUDES =================================================================
63 
64 #include <vector>
65 
66 #include <ACG/GL/gl.hh>
67 #include <ACG/GL/VertexDeclaration.hh>
68 
69 
70 //== NAMESPACES ===============================================================
71 
72 
73 namespace ACG {
74 
75 
76 //== CLASS DEFINITION =========================================================
77 
78 
81 class ACGDLLEXPORT ScreenQuad
82 {
83 public:
85  ~ScreenQuad();
86 
87 
93  static void draw(GLSL::Program* _prog = 0);
94 
102  static void drawInstanced(int _count, GLSL::Program* _prog = 0);
103 
104 
113  static void drawTexture2D(GLuint _texture, const Vec2f& _offset = Vec2f(0.0f, 0.0f),
114  const Vec2f& _size = Vec2f(1.0f, 1.0f));
115 
116 private:
117 
119  ScreenQuad();
120 
121 
123  static ScreenQuad& instance();
124 
126  void init();
127 
129  void intDraw(GLSL::Program* _prog, int _numInstances = 0);
130 
131 
132 
134  GLuint vbo_;
135 
138 
139 
142 };
143 
144 
145 //=============================================================================
146 } // namespace ACG
147 //=============================================================================
148 #endif // ACG_SCREENQUAD_HH defined
149 //=============================================================================
150 
VectorT< float, 2 > Vec2f
Definition: VectorT.hh:108
VertexDeclaration * decl_
vertex format of screen quad (float2 pos)
Definition: ScreenQuad.hh:137
Class to define the vertex input layout.
GLSL::Program * texDrawProg_
Simple texture drawing shader.
Definition: ScreenQuad.hh:141
GLuint vbo_
vbo containing the quad in projected coordinates
Definition: ScreenQuad.hh:134
Namespace providing different geometric functions concerning angles.
Definition: DBSCANT.cc:51
GLSL program class.
Definition: GLSLShader.hh:217