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