OsgTextureUniform.h

// This file is a part of the OpenSurgSim project.
// Copyright 2013, 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_OSGTEXTUREUNIFORM_H
#define SURGSIM_GRAPHICS_OSGTEXTUREUNIFORM_H


namespace SurgSim
{

namespace Graphics
{

template <class T>
class OsgTextureUniform : public Uniform<std::shared_ptr<T>>, public OsgUniformBase
{
public:
    explicit OsgTextureUniform(const std::string& name);

    void setMinimumTextureUnit(size_t unit);

    size_t getMinimumTextureUnit() const;

    virtual void set(const std::shared_ptr<T>& value);

    virtual void set(const YAML::Node& node);

    virtual const std::shared_ptr<T>& get() const;

    virtual void addToStateSet(osg::StateSet* stateSet);

    virtual void removeFromStateSet(osg::StateSet* stateSet);

    virtual const std::string getGlslType() const;

private:
    std::shared_ptr<T> m_texture;

    osg::ref_ptr<osg::StateSet> m_stateset;

    ptrdiff_t m_unit;

    size_t m_minimumTextureUnit;
};

template <>
class OsgUniform<std::shared_ptr<OsgTexture1d>> : public OsgTextureUniform<OsgTexture1d>
{
public:
    explicit OsgUniform(const std::string& name) : OsgTextureUniform<OsgTexture1d>(name)
    {
    }
};

template <>
class OsgUniform<std::shared_ptr<OsgTexture2d>> : public OsgTextureUniform<OsgTexture2d>
{
public:
    explicit OsgUniform(const std::string& name) : OsgTextureUniform<OsgTexture2d>(name)
    {
    }
};

template <>
class OsgUniform<std::shared_ptr<OsgTexture3d>> : public OsgTextureUniform<OsgTexture3d>
{
public:
    explicit OsgUniform(const std::string& name) : OsgTextureUniform<OsgTexture3d>(name)
    {
    }
};

template <>
class OsgUniform<std::shared_ptr<OsgTextureCubeMap>> : public OsgTextureUniform<OsgTextureCubeMap>
{
public:
    explicit OsgUniform(const std::string& name) : OsgTextureUniform<OsgTextureCubeMap>(name)
    {
    }
};

template <>
class OsgUniform<std::shared_ptr<OsgTextureRectangle>> : public OsgTextureUniform<OsgTextureRectangle>
{
public:
    explicit OsgUniform(const std::string& name) : OsgTextureUniform<OsgTextureRectangle>(name)
    {
    }
};

};  // namespace Graphics

};  // namespace SurgSim

#endif  // SURGSIM_GRAPHICS_OSGTEXTUREUNIFORM_H