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Object-Oriented Graphics Rendering Engine
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OgreGL3PlusHardwarePixelBuffer.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/
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7 Copyright (c) 2000-2014 Torus Knot Software Ltd
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28 
29 #ifndef __GL3PlusHardwarePixelBuffer_H__
30 #define __GL3PlusHardwarePixelBuffer_H__
31 
34 
35 namespace Ogre {
37  {
38  protected:
40  PixelBox lockImpl(const Image::Box &lockBox, LockOptions options);
41 
43  void unlockImpl(void);
44 
45  // Internal buffer; either on-card or in system memory, freed/allocated on demand
46  // depending on buffer usage
48  GLenum mGLInternalFormat; // GL internal format
49  LockOptions mCurrentLockOptions;
50 
51  // Buffer allocation/freeage
52  void allocateBuffer();
53 
54  void freeBuffer();
55 
57  virtual void upload(const PixelBox &data, const Image::Box &dest);
58 
60  virtual void download(const PixelBox &data);
61 
62  public:
64  GL3PlusHardwarePixelBuffer(uint32 mWidth, uint32 mHeight, uint32 mDepth,
65  PixelFormat mFormat,
66  HardwareBuffer::Usage usage);
67 
69  void blitFromMemory(const PixelBox &src, const Image::Box &dstBox);
70 
72  void blitToMemory(const Image::Box &srcBox, const PixelBox &dst);
73 
75 
78  virtual void bindToFramebuffer(GLenum attachment, uint32 zoffset);
79  GLenum getGLFormat() { return mGLInternalFormat; }
80  };
81 
85  {
86  public:
87  GL3PlusRenderBuffer(GLenum format, uint32 width, uint32 height, GLsizei numSamples);
89 
91  virtual void bindToFramebuffer(GLenum attachment, uint32 zoffset);
92 
93  protected:
94  // In case this is a render buffer
96  };
97 }
98 
99 #endif
unsigned int uint32
Definition: OgrePlatform.h:420
Structure used to define a box in a 3-D integer space.
Definition: OgreCommon.h:689
PixelFormat
The pixel format used for images, textures, and render surfaces.
Usage
Enums describing buffer usage; not mutually exclusive.
Specialisation of HardwareBuffer for a pixel buffer.
#define _OgreGL3PlusExport