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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_GlTypeTraits_h
#define otb_GlTypeTraits_h
#include "OTBIceExport.h"
#ifdef _WIN32
# include <windows.h>
#endif
#include <GL/glew.h>
namespace otb { namespace gl {
using Id_t = GLuint;
/**
* @class traits to associate (OpenGL) type to its GLenum value.
*/
template< typename T >
struct TypeTraits
{
/** OpenGL type */
using Type = T;
/** OpenGL type enum */
static constexpr GLenum value() noexcept;
static char const * name() noexcept;
};
/** Define OpenGL type to its GLenum value */
#define OTB_GL_TYPE_TRAITS( type, glenum, glname ) \
/** OpenGL type to GLenum association. */ \
template<> \
struct TypeTraits< type > \
{ \
static constexpr GLenum value() noexcept { return glenum; } \
\
static constexpr char const * name() noexcept { return glname; } \
}
OTB_GL_TYPE_TRAITS( GLfloat, GL_FLOAT, "GLfloat" );
OTB_GL_TYPE_TRAITS( GLdouble, GL_DOUBLE, "GLdouble" );
OTB_GL_TYPE_TRAITS( GLint, GL_INT, "GLint" );
OTB_GL_TYPE_TRAITS( GLuint, GL_UNSIGNED_INT, "GLuint" );
} // end namespace gl.
} // end namespace otb.
#endif // otb_TypeTraits_h
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