OsgUniformGlslTypes.h

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// This file is a part of the OpenSurgSim project.
// Copyright 2013-2015, SimQuest Solutions Inc.
//
// 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 SURGSIM_GRAPHICS_OSGUNIFORMGLSLTYPES_H
#define SURGSIM_GRAPHICS_OSGUNIFORMGLSLTYPES_H

#include<memory>

#include "SurgSim/Math/Matrix.h"
#include "SurgSim/Math/Vector.h"

namespace SurgSim
{

namespace Graphics
{

class OsgTexture1d;
class OsgTexture2d;
class OsgTexture3d;
class OsgTextureCubeMap;
class OsgTextureRectangle;

template <class T>
inline const std::string getGlslType()
{
    return "__undefined__";
}

template <>
inline const std::string getGlslType<float>()
{
    return "float";
}

template <>
inline const std::string getGlslType<double>()
{
    return "double";
}
template <>
inline const std::string getGlslType<int>()
{
    return "int";
}
template <>
inline const std::string getGlslType<unsigned int>()
{
    return "uint";
}
template <>
inline const std::string getGlslType<bool>()
{
    return "bool";
}

template <>
inline const std::string getGlslType<SurgSim::Math::Vector2f>()
{
    return "vec2";
}
template <>
inline const std::string getGlslType<SurgSim::Math::Vector3f>()
{
    return "vec3";
}
template <>
inline const std::string getGlslType<SurgSim::Math::Vector4f>()
{
    return "vec4";
}

template <>
inline const std::string getGlslType<SurgSim::Math::Vector2d>()
{
    return "dvec2";
}
template <>
inline const std::string getGlslType<SurgSim::Math::Vector3d>()
{
    return "dvec3";
}
template <>
inline const std::string getGlslType<SurgSim::Math::Vector4d>()
{
    return "dvec4";
}

template <>
inline const std::string getGlslType<SurgSim::Math::Matrix22f>()
{
    return "mat2";
}
template <>
inline const std::string getGlslType<SurgSim::Math::Matrix33f>()
{
    return "mat3";
}
template <>
inline const std::string getGlslType<SurgSim::Math::Matrix44f>()
{
    return "mat4";
}

template <>
inline const std::string getGlslType<SurgSim::Math::Matrix22d>()
{
    return "dmat2";
}
template <>
inline const std::string getGlslType<SurgSim::Math::Matrix33d>()
{
    return "dmat3";
}
template <>
inline const std::string getGlslType<SurgSim::Math::Matrix44d>()
{
    return "dmat4";
}

template <>
inline const std::string getGlslType<std::shared_ptr<OsgTexture1d>>()
{
    return "sampler1D";
}

template <>
inline const std::string getGlslType<std::shared_ptr<OsgTexture2d>>()
{
    return "sampler2D";
}

template <>
inline const std::string getGlslType<std::shared_ptr<OsgTexture3d>>()
{
    return "sampler3D";
}

template <>
inline const std::string getGlslType<std::shared_ptr<OsgTextureCubeMap>>()
{
    return "samplerCube";
}

template <>
inline const std::string getGlslType<std::shared_ptr<OsgTextureRectangle>>()
{
    return "sampler2DRect";
}

};  // namespace Graphics

};  // namespace SurgSim

#endif  // SURGSIM_GRAPHICS_OSGUNIFORMGLSLTYPES_H