OGRE  2.0
Object-Oriented Graphics Rendering Engine
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OgreGLESHardwareIndexBuffer.h
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1 /*
2 -----------------------------------------------------------------------------
3 This source file is part of OGRE
4  (Object-oriented Graphics Rendering Engine)
5 For the latest info, see http://www.ogre3d.org/
6 
7 Copyright (c) 2008 Renato Araujo Oliveira Filho <renatox@gmail.com>
8 Copyright (c) 2000-2014 Torus Knot Software Ltd
9 
10 Permission is hereby granted, free of charge, to any person obtaining a copy
11 of this software and associated documentation files (the "Software"), to deal
12 in the Software without restriction, including without limitation the rights
13 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
14 copies of the Software, and to permit persons to whom the Software is
15 furnished to do so, subject to the following conditions:
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17 The above copyright notice and this permission notice shall be included in
18 all copies or substantial portions of the Software.
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20 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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26 THE SOFTWARE.
27 -----------------------------------------------------------------------------
28 */
29 
30 #ifndef __GLESHardwareIndexBuffer_H__
31 #define __GLESHardwareIndexBuffer_H__
32 
33 #include "OgreGLESPrerequisites.h"
36 
37 namespace Ogre {
39  {
40  private:
41  GLuint mBufferId;
42  // Scratch buffer handling
45  size_t mScratchSize;
46  void* mScratchPtr;
48 
49  protected:
51  void* lockImpl(size_t offset, size_t length, LockOptions options);
53  void unlockImpl(void);
54 
55  void createBuffer();
56 
57  void destroyBuffer();
58 
59 #if OGRE_PLATFORM == OGRE_PLATFORM_ANDROID
60 
61  virtual void notifyOnContextLost();
62 
64  virtual void notifyOnContextReset();
65 #endif
66 
67  public:
68  GLESHardwareIndexBuffer(HardwareBufferManagerBase* mgr, IndexType idxType, size_t numIndexes,
70  bool useShadowBuffer);
71  virtual ~GLESHardwareIndexBuffer();
73  void readData(size_t offset, size_t length, void* pDest);
75  void writeData(size_t offset, size_t length,
76  const void* pSource, bool discardWholeBuffer = false);
78  void _updateFromShadow(void);
79 
80  GLuint getGLBufferId(void) const { return mBufferId; }
81  };
82 }
83 
84 #endif
Specialisation of HardwareBuffer for vertex index buffers, still abstract.
#define _OgreGLESExport
#define MANAGED_RESOURCE
Base definition of a hardware buffer manager.
Usage
Enums describing buffer usage; not mutually exclusive.