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/*=========================================================================
Program: Visualization Toolkit
Module: vtkShaderCodeLibrary.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
// .NAME vtkShaderCodeLibrary - Library for Hardware Shaders.
// .SECTION Description
// This class provides the hardware shader code.
// .SECTION Thanks
// Shader support in VTK includes key contributions by Gary Templet at
// Sandia National Labs.
#ifndef __vtkShaderCodeLibrary_h
#define __vtkShaderCodeLibrary_h
#include "vtkRenderingCoreModule.h" // For export macro
#include "vtkObject.h"
class VTKRENDERINGCORE_EXPORT vtkShaderCodeLibrary : public vtkObject
{
public:
static vtkShaderCodeLibrary* New();
vtkTypeMacro(vtkShaderCodeLibrary, vtkObject);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Obtain the code for the shader with given name.
// Note that Cg shader names are prefixed with CG and
// GLSL shader names are prefixed with GLSL.
// This method allocates memory. It's the responsibility
// of the caller to free this memory.
static char* GetShaderCode(const char* name);
// Description:
// Returns an array of pointers to char strings that are
// the names of the shader codes provided by the library.
// The end of the array is marked by a null pointer.
static const char** GetListOfShaderCodeNames();
// Description:
// Provides for registering shader code. This overrides the compiled in shader
// codes.
static void RegisterShaderCode(const char* name, const char* code);
//BTX
protected:
vtkShaderCodeLibrary();
~vtkShaderCodeLibrary();
private:
vtkShaderCodeLibrary(const vtkShaderCodeLibrary&); // Not implemented.
void operator=(const vtkShaderCodeLibrary&); // Not implemented.
// vtkInternalCleanup is used to destroy Internal ptr when the application
// exits.
class vtkInternalCleanup
{
public:
vtkInternalCleanup() {}
~vtkInternalCleanup();
};
friend class vtkInternalCleanup;
static vtkInternalCleanup Cleanup;
// vtkInternal is used to maintain user registered shader codes.
class vtkInternal;
static vtkInternal* Internal;
//ETX
};
#endif
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