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RendererModules/OpenGLES/GeometryBuffer.h
1 /***********************************************************************
2  filename: CEGUIOpenGLESGeometryBuffer.h
3  created: Thu Jan 8 2009
4  author: Paul D Turner
5 *************************************************************************/
6 /***************************************************************************
7  * Copyright (C) 2004 - 2009 Paul D Turner & The CEGUI Development Team
8  *
9  * Permission is hereby granted, free of charge, to any person obtaining
10  * a copy of this software and associated documentation files (the
11  * "Software"), to deal in the Software without restriction, including
12  * without limitation the rights to use, copy, modify, merge, publish,
13  * distribute, sublicense, and/or sell copies of the Software, and to
14  * permit persons to whom the Software is furnished to do so, subject to
15  * the following conditions:
16  *
17  * The above copyright notice and this permission notice shall be
18  * included in all copies or substantial portions of the Software.
19  *
20  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
23  * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
24  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
25  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
26  * OTHER DEALINGS IN THE SOFTWARE.
27  ***************************************************************************/
28 #ifndef _CEGUIOpenGLESGeometryBuffer_h_
29 #define _CEGUIOpenGLESGeometryBuffer_h_
30 
31 #include "CEGUI/GeometryBuffer.h"
32 #include "CEGUI/RendererModules/OpenGLES/Renderer.h"
33 #include "CEGUI/Rect.h"
34 #include "CEGUI/Quaternion.h"
35 
36 #include <utility>
37 #include <vector>
38 
39 #if defined(_MSC_VER)
40 # pragma warning(push)
41 # pragma warning(disable : 4251)
42 #endif
43 
44 // Start of CEGUI namespace section
45 namespace CEGUI
46 {
47 class OpenGLESTexture;
48 
53 class OPENGLES_GUIRENDERER_API OpenGLESGeometryBuffer : public GeometryBuffer
54 {
55 public:
57  OpenGLESGeometryBuffer();
58 
59  // implementation of abstract members from GeometryBuffer
60  void draw() const;
61  void setTranslation(const Vector3f& t);
62  void setRotation(const Quaternion& r);
63  void setPivot(const Vector3f& p);
64  void setClippingRegion(const Rectf& region);
65  void appendVertex(const Vertex& vertex);
66  void appendGeometry(const Vertex* const vbuff, uint vertex_count);
67  void setActiveTexture(Texture* texture);
68  void reset();
69  Texture* getActiveTexture() const;
70  uint getVertexCount() const;
71  uint getBatchCount() const;
72  void setRenderEffect(RenderEffect* effect);
73  RenderEffect* getRenderEffect();
74 
76  const float* getMatrix() const;
77 
78 protected:
80  void performBatchManagement();
81 
83  void updateMatrix() const;
84 
86  struct GLVertex
87  {
88  float tex[2];
89  float colour[4];
90  float position[3];
91  };
92 
94  OpenGLESTexture* d_activeTexture;
96  typedef std::pair<uint, uint> BatchInfo;
98  typedef std::vector<BatchInfo> BatchList;
100  BatchList d_batches;
102  typedef std::vector<GLVertex> VertexList;
104  VertexList d_vertices;
106  Rectf d_clipRect;
108  Vector3f d_translation;
110  Quaternion d_rotation;
112  Vector3f d_pivot;
114  RenderEffect* d_effect;
116  mutable float d_matrix[16];
118  mutable bool d_matrixValid;
119 };
120 
121 
122 } // End of CEGUI namespace section
123 
124 #if defined(_MSC_VER)
125 # pragma warning(pop)
126 #endif
127 
128 #endif // end of guard _CEGUIOpenGLESGeometryBuffer_h_