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96 lines
2.6 KiB
C++
96 lines
2.6 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkOpenGLTexture.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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/**
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* @class vtkOpenGLTexture
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* @brief OpenGL texture map
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*
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* vtkOpenGLTexture is a concrete implementation of the abstract class
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* vtkTexture. vtkOpenGLTexture interfaces to the OpenGL rendering library.
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*/
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#ifndef vtkOpenGLTexture_h
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#define vtkOpenGLTexture_h
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#include "vtkRenderingOpenGLModule.h" // For export macro
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#include "vtkTexture.h"
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#include "vtkWeakPointer.h" // needed for vtkWeakPointer.
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class vtkWindow;
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class vtkOpenGLRenderer;
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class vtkRenderWindow;
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class vtkPixelBufferObject;
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class VTKRENDERINGOPENGL_EXPORT vtkOpenGLTexture : public vtkTexture
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{
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public:
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static vtkOpenGLTexture *New();
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vtkTypeMacro(vtkOpenGLTexture, vtkTexture);
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void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
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/**
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* Implement base class method.
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*/
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void Load(vtkRenderer*);
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// Descsription:
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// Clean up after the rendering is complete.
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virtual void PostRender(vtkRenderer*);
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/**
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* Release any graphics resources that are being consumed by this texture.
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* The parameter window could be used to determine which graphic
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* resources to release. Using the same texture object in multiple
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* render windows is NOT currently supported.
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*/
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void ReleaseGraphicsResources(vtkWindow*);
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//@{
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/**
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* Get the openGL texture name to which this texture is bound.
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* This is available only if GL version >= 1.1
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*/
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vtkGetMacro(Index, long);
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//@}
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protected:
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vtkOpenGLTexture();
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~vtkOpenGLTexture();
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unsigned char *ResampleToPowerOfTwo(int &xsize, int &ysize,
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unsigned char *dptr, int bpp);
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vtkTimeStamp LoadTime;
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unsigned int Index; // actually GLuint
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vtkWeakPointer<vtkRenderWindow> RenderWindow; // RenderWindow used for previous render
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bool CheckedHardwareSupport;
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bool SupportsNonPowerOfTwoTextures;
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bool SupportsPBO;
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vtkPixelBufferObject *PBO;
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private:
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vtkOpenGLTexture(const vtkOpenGLTexture&) VTK_DELETE_FUNCTION;
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void operator=(const vtkOpenGLTexture&) VTK_DELETE_FUNCTION;
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/**
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* Handle loading in extension support
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*/
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virtual void Initialize(vtkRenderer * ren);
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};
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#endif
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