OGRE  2.0
Object-Oriented Graphics Rendering Engine
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OgreGLRenderTexture.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) 2000-2014 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
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27 */
28 
29 #ifndef __GLRENDERTEXTURE_H__
30 #define __GLRENDERTEXTURE_H__
31 
32 #include "OgreGLTexture.h"
33 
34 namespace Ogre {
38  {
39  public:
43 
44  GLSurfaceDesc() :buffer(0), zoffset(0), numSamples(0) {}
45  };
46 
50  {
51  public:
52  GLRenderTexture(const String &name, const GLSurfaceDesc &target, bool writeGamma, uint fsaa);
53  virtual ~GLRenderTexture();
54 
55  bool requiresTextureFlipping() const { return true; }
56 
60  };
61 
64  class _OgreGLExport GLRTTManager: public Singleton<GLRTTManager>
65  {
66  public:
67  virtual ~GLRTTManager();
68 
71  virtual RenderTexture *createRenderTexture(const String &name, const GLSurfaceDesc &target, bool writeGamma, uint fsaa) = 0;
72 
75  virtual bool checkFormat(PixelFormat format) = 0;
76 
79  virtual void bind(RenderTarget *target) = 0;
80 
85  virtual void unbind(RenderTarget *target) = 0;
86 
87  virtual void getBestDepthStencil(GLenum internalFormat, GLenum *depthFormat, GLenum *stencilFormat)
88  {
89  *depthFormat = GL_NONE;
90  *stencilFormat = GL_NONE;
91  }
92 
95  virtual MultiRenderTarget* createMultiRenderTarget(const String & name);
96 
99  virtual PixelFormat getSupportedAlternative(PixelFormat format);
100  };
101 
104  class GLCopyingRTTManager;
106  {
107  public:
108  GLCopyingRenderTexture(GLCopyingRTTManager *manager, const String &name, const GLSurfaceDesc &target,
109  bool writeGamma, uint fsaa);
110 
111  virtual void getCustomAttribute(const String& name, void* pData);
112  };
113 
118  {
119  public:
121  virtual ~GLCopyingRTTManager();
122 
125  virtual RenderTexture *createRenderTexture(const String &name, const GLSurfaceDesc &target, bool writeGamma, uint fsaa);
126 
129  virtual bool checkFormat(PixelFormat format);
130 
133  virtual void bind(RenderTarget *target);
134 
137  virtual void unbind(RenderTarget *target);
138  };
139 }
140 
141 #endif // __GLTEXTURE_H__
A 'canvas' which can receive the results of a rendering operation.
unsigned int uint32
Definition: OgrePlatform.h:420
Template class for creating single-instance global classes.
Definition: OgreSingleton.h:64
This class represents a RenderTarget that renders to a Texture.
static const String CustomAttributeString_FBO
Simple, copying manager/factory for RenderTextures.
#define _OgreGLExport
bool requiresTextureFlipping() const
This class represents a render target that renders to multiple RenderTextures at once.
static const String CustomAttributeString_GLCONTEXT
PixelFormat
The pixel format used for images, textures, and render surfaces.
#define _OgrePrivate
Definition: OgrePlatform.h:256
GLHardwarePixelBuffer * buffer
virtual void getBestDepthStencil(GLenum internalFormat, GLenum *depthFormat, GLenum *stencilFormat)
#define GL_NONE
Base class for GL Render Textures.
_StringBase String
Definition: OgreCommon.h:53
Manager/factory for RenderTextures.
GL surface descriptor.
static const String CustomAttributeString_TARGET
unsigned int uint