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/*
* Copyright (C) 2005-2020 Centre National d'Etudes Spatiales (CNES)
*
* This file is part of Orfeo Toolbox
*
* https://www.orfeo-toolbox.org/
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef otb_ShaderRegistry_h
#define otb_ShaderRegistry_h
#include "itkObject.h"
#include "itkObjectFactory.h"
namespace otb
{
class ShaderRegistry
: public itk::Object
{
public:
typedef ShaderRegistry Self;
typedef itk::Object Superclass;
typedef itk::SmartPointer<Self> Pointer;
typedef itk::SmartPointer<const Self> ConstPointer;
static Pointer Instance();
void RegisterShader(const std::string& name, const std::string& vSource, const std::string& fSource);
bool UnregisterShader(const std::string& name);
bool IsShaderRegistered(const std::string& name) const;
bool LoadShader(const std::string& name);
void UnloadShader();
void ClearShaders();
unsigned int GetShaderProgram(const std::string& name);
protected:
ShaderRegistry();
~ShaderRegistry() override;
private:
typedef std::map<std::string, unsigned int > ShaderMapType;
itkNewMacro(Self);
// prevent implementation
ShaderRegistry(const Self&);
void operator=(const Self&);
unsigned int CompileShader(int stype, const std::string& name, const std::string& src);
static Pointer m_Instance;
ShaderMapType m_ShaderMap;
}; // End class ShaderRegistry
} // End namespace otb
#endif
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