OgreGLHardwarePixelBuffer.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) 2000-2013 Torus Knot Software Ltd
8 
9 Permission is hereby granted, free of charge, to any person obtaining a copy
10 of this software and associated documentation files (the "Software"), to deal
11 in the Software without restriction, including without limitation the rights
12 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
13 copies of the Software, and to permit persons to whom the Software is
14 furnished to do so, subject to the following conditions:
15 
16 The above copyright notice and this permission notice shall be included in
17 all copies or substantial portions of the Software.
18 
19 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
22 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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25 THE SOFTWARE.
26 -----------------------------------------------------------------------------
27 */
28 #ifndef __GLPIXELBUFFER_H__
29 #define __GLPIXELBUFFER_H__
30 
31 #include "OgreGLPrerequisites.h"
33 
34 namespace Ogre {
36  {
37  protected:
39  PixelBox lockImpl(const Image::Box lockBox, LockOptions options);
40 
42  void unlockImpl(void);
43 
48  LockOptions mCurrentLockOptions;
49 
51  void allocateBuffer();
52  void freeBuffer();
54  virtual void upload(const PixelBox &data, const Image::Box &dest);
56  virtual void download(const PixelBox &data);
57  public:
59  GLHardwarePixelBuffer(uint32 mWidth, uint32 mHeight, uint32 mDepth,
60  PixelFormat mFormat,
61  HardwareBuffer::Usage usage);
62 
64  void blitFromMemory(const PixelBox &src, const Image::Box &dstBox);
65 
67  void blitToMemory(const Image::Box &srcBox, const PixelBox &dst);
68 
70 
73  virtual void bindToFramebuffer(GLenum attachment, uint32 zoffset);
74  GLenum getGLFormat() { return mGLInternalFormat; }
75  };
76 
80  {
81  public:
83  GLTextureBuffer(GLSupport& support, const String &baseName, GLenum target, GLuint id, GLint face,
84  GLint level, Usage usage, bool softwareMipmap, bool writeGamma, uint fsaa);
85  ~GLTextureBuffer();
86 
88  virtual void bindToFramebuffer(GLenum attachment, uint32 zoffset);
90  RenderTexture* getRenderTarget(size_t slice);
92  virtual void upload(const PixelBox &data, const Image::Box &dest);
94  virtual void download(const PixelBox &data);
95 
97  virtual void blitFromMemory(const PixelBox &src_orig, const Image::Box &dstBox);
98 
100  void _clearSliceRTT(size_t zoffset)
101  {
102  mSliceTRT[zoffset] = 0;
103  }
105  void copyFromFramebuffer(uint32 zoffset);
107  void blit(const HardwarePixelBufferSharedPtr &src, const Image::Box &srcBox, const Image::Box &dstBox);
109  void blitFromTexture(GLTextureBuffer *src, const Image::Box &srcBox, const Image::Box &dstBox);
110  protected:
111  // In case this is a texture level
112  GLenum mTarget;
113  GLenum mFaceTarget; // same as mTarget in case of GL_TEXTURE_xD, but cubemap face for cubemaps
114  GLuint mTextureID;
115  GLint mFace;
116  GLint mLevel;
117  bool mSoftwareMipmap; // Use GLU for mip mapping
118  bool mHwGamma;
119 
122 
124  };
128  {
129  public:
130  GLRenderBuffer(GLenum format, uint32 width, uint32 height, GLsizei numSamples);
131  ~GLRenderBuffer();
132 
134  virtual void bindToFramebuffer(GLenum attachment, uint32 zoffset);
135  protected:
138  };
139 }
140 
141 #endif
Ogre::GLTextureBuffer::mHwGamma
bool mHwGamma
Definition: OgreGLHardwarePixelBuffer.h:118
Ogre::GLTextureBuffer
Texture surface.
Definition: OgreGLHardwarePixelBuffer.h:79
Ogre
Definition: OgreAndroidLogListener.h:34
Ogre::GLRenderBuffer::mRenderbufferID
GLuint mRenderbufferID
In case this is a render buffer.
Definition: OgreGLHardwarePixelBuffer.h:137
Ogre::GLHardwarePixelBuffer::getGLFormat
GLenum getGLFormat()
Definition: OgreGLHardwarePixelBuffer.h:74
Ogre::GLTextureBuffer::mTextureID
GLuint mTextureID
Definition: OgreGLHardwarePixelBuffer.h:114
Ogre::HardwarePixelBuffer
Specialisation of HardwareBuffer for a pixel buffer.
Definition: OgreHardwarePixelBuffer.h:53
Ogre::GLTextureBuffer::mFace
GLint mFace
Definition: OgreGLHardwarePixelBuffer.h:115
Ogre::uint32
unsigned int uint32
Definition: OgrePlatform.h:359
Ogre::String
_StringBase String
Definition: OgrePrerequisites.h:439
OgreHardwarePixelBuffer.h
Ogre::GLSupport
Definition: OgreGLSupport.h:43
Ogre::GLRenderBuffer
Renderbuffer surface.
Definition: OgreGLHardwarePixelBuffer.h:127
Ogre::GLHardwarePixelBuffer::mCurrentLockOptions
LockOptions mCurrentLockOptions
GL internal format.
Definition: OgreGLHardwarePixelBuffer.h:48
Ogre::PixelFormat
PixelFormat
The pixel format used for images, textures, and render surfaces.
Definition: OgrePixelFormat.h:43
Ogre::GLTextureBuffer::mSoftwareMipmap
bool mSoftwareMipmap
Definition: OgreGLHardwarePixelBuffer.h:117
Ogre::GLTextureBuffer::mFaceTarget
GLenum mFaceTarget
Definition: OgreGLHardwarePixelBuffer.h:113
_OgreGLExport
#define _OgreGLExport
Definition: OgreGLPrerequisites.h:99
OgreGLPrerequisites.h
Ogre::GLTextureBuffer::_clearSliceRTT
void _clearSliceRTT(size_t zoffset)
Notify TextureBuffer of destruction of render target.
Definition: OgreGLHardwarePixelBuffer.h:100
Ogre::Box
Structure used to define a box in a 3-D integer space.
Definition: OgreCommon.h:659
Ogre::GLHardwarePixelBuffer::mGLInternalFormat
GLenum mGLInternalFormat
Definition: OgreGLHardwarePixelBuffer.h:47
Ogre::GLTextureBuffer::mLevel
GLint mLevel
Definition: OgreGLHardwarePixelBuffer.h:116
Ogre::GLHardwarePixelBuffer::mBuffer
PixelBox mBuffer
Internal buffer; either on-card or in system memory, freed/allocated on demand depending on buffer us...
Definition: OgreGLHardwarePixelBuffer.h:46
Ogre::uint
unsigned int uint
Definition: OgrePrerequisites.h:114
Ogre::PixelBox
A primitive describing a volume (3D), image (2D) or line (1D) of pixels in memory.
Definition: OgrePixelFormat.h:304
Ogre::HardwarePixelBufferSharedPtr
Shared pointer implementation used to share pixel buffers.
Definition: OgreHardwarePixelBuffer.h:193
Ogre::RenderTexture
This class represents a RenderTarget that renders to a Texture.
Definition: OgreRenderTexture.h:48
Ogre::GLTextureBuffer::SliceTRT
vector< RenderTexture * >::type SliceTRT
Definition: OgreGLHardwarePixelBuffer.h:120
Ogre::HardwareBuffer::Usage
Usage
Enums describing buffer usage; not mutually exclusive.
Definition: OgreHardwareBuffer.h:79
Ogre::GLTextureBuffer::mGLSupport
GLSupport & mGLSupport
Definition: OgreGLHardwarePixelBuffer.h:123
Ogre::GLHardwarePixelBuffer
Definition: OgreGLHardwarePixelBuffer.h:35
Ogre::vector
Definition: OgrePrerequisites.h:491
Ogre::GLTextureBuffer::mSliceTRT
SliceTRT mSliceTRT
Definition: OgreGLHardwarePixelBuffer.h:121
Ogre::GLTextureBuffer::mTarget
GLenum mTarget
Definition: OgreGLHardwarePixelBuffer.h:112

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Last modified Tue Apr 13 2021 08:53:15