VTK
vtkOpenGLTexture.h
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1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkOpenGLTexture.h
5 
6  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
7  All rights reserved.
8  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
9 
10  This software is distributed WITHOUT ANY WARRANTY; without even
11  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
12  PURPOSE. See the above copyright notice for more information.
13 
14 =========================================================================*/
23 #ifndef vtkOpenGLTexture_h
24 #define vtkOpenGLTexture_h
25 
26 #include "vtkRenderingOpenGL2Module.h" // For export macro
27 #include "vtkTexture.h"
28 #include "vtkWeakPointer.h" // needed for vtkWeakPointer.
29 
30 class vtkRenderWindow;
31 class vtkTextureObject;
32 
33 class VTKRENDERINGOPENGL2_EXPORT vtkOpenGLTexture : public vtkTexture
34 {
35 public:
36  static vtkOpenGLTexture *New();
37  vtkTypeMacro(vtkOpenGLTexture, vtkTexture);
38  void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
39 
45  void Render(vtkRenderer* ren) VTK_OVERRIDE;
46 
50  void Load(vtkRenderer*) VTK_OVERRIDE;
51 
52  // Descsription:
53  // Clean up after the rendering is complete.
54  void PostRender(vtkRenderer*) VTK_OVERRIDE;
55 
62  void ReleaseGraphicsResources(vtkWindow*) VTK_OVERRIDE;
63 
67  void CopyTexImage(int x, int y, int width, int height);
68 
70 
73  vtkGetMacro(IsDepthTexture,int);
74  vtkSetMacro(IsDepthTexture,int);
76 
78 
81  vtkGetMacro(TextureType,int);
82  vtkSetMacro(TextureType,int);
84 
85  vtkGetObjectMacro(TextureObject, vtkTextureObject);
86  void SetTextureObject(vtkTextureObject *);
87 
91  int GetTextureUnit() VTK_OVERRIDE;
92 
99  int IsTranslucent() VTK_OVERRIDE;
100 
101 protected:
103  ~vtkOpenGLTexture() VTK_OVERRIDE;
104 
105  vtkTimeStamp LoadTime;
106  vtkWeakPointer<vtkRenderWindow> RenderWindow; // RenderWindow used for previous render
107 
108  bool ExternalTextureObject;
109  vtkTextureObject *TextureObject;
110 
111  int IsDepthTexture;
112  int TextureType;
113  int PrevBlendParams[4];
114 
115  // used when the texture exceeds the GL limit
116  unsigned char *ResampleToPowerOfTwo(int &xsize, int &ysize,
117  unsigned char *dptr, int bpp);
118 
119 
120 private:
121  vtkOpenGLTexture(const vtkOpenGLTexture&) VTK_DELETE_FUNCTION;
122  void operator=(const vtkOpenGLTexture&) VTK_DELETE_FUNCTION;
123 };
124 
125 #endif
virtual void PostRender(vtkRenderer *)
Cleans up after the texture rendering to restore the state of the graphics context.
Definition: vtkTexture.h:82
record modification and/or execution time
Definition: vtkTimeStamp.h:32
virtual void ReleaseGraphicsResources(vtkWindow *)
Release any graphics resources that are being consumed by this texture.
Definition: vtkTexture.h:89
abstract specification for renderers
Definition: vtkRenderer.h:57
virtual void Load(vtkRenderer *)
Abstract interface to renderer.
Definition: vtkTexture.h:96
OpenGL texture map.
virtual void Render(vtkRenderer *ren)
Renders a texture map.
window superclass for vtkRenderWindow
Definition: vtkWindow.h:34
a simple class to control print indentation
Definition: vtkIndent.h:33
a weak reference to a vtkObject.
static vtkTexture * New()
handles properties associated with a texture map
Definition: vtkTexture.h:64
vtkSetMacro(IgnoreDriverBugs, bool)
When set known driver bugs are ignored during driver feature detection.
virtual int GetTextureUnit()
Return the texture unit used for this texture.
Definition: vtkTexture.h:251
abstracts an OpenGL texture object.
create a window for renderers to draw into
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.