Program.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_PROGRAM_H
#define SURGSIM_GRAPHICS_PROGRAM_H

#include <string>
#include "SurgSim/Framework/Accessible.h"
#include "SurgSim/Framework/Asset.h"

namespace SurgSim
{

namespace Framework
{
class Asset;
}

namespace Graphics
{

class Program : public Framework::Asset
{
public:

    virtual ~Program() = 0;

    virtual bool hasVertexShader() const = 0;

    virtual void clearVertexShader() = 0;

    virtual bool loadVertexShader(const std::string& filePath) = 0;

    virtual void setVertexShaderSource(const std::string& source) = 0;

    virtual bool getVertexShaderSource(std::string* source) const = 0;

    virtual bool hasGeometryShader() const = 0;

    virtual void clearGeometryShader() = 0;

    virtual bool loadGeometryShader(const std::string& filePath) = 0;

    virtual void setGeometryShaderSource(const std::string& source) = 0;

    virtual bool getGeometryShaderSource(std::string* source) const = 0;


    virtual bool hasFragmentShader() const = 0;

    virtual void clearFragmentShader() = 0;

    virtual bool loadFragmentShader(const std::string& filePath) = 0;

    virtual void setFragmentShaderSource(const std::string& source) = 0;

    virtual bool getFragmentShaderSource(std::string* source) const = 0;

    virtual void clear()
    {
        clearVertexShader();
        clearGeometryShader();
        clearFragmentShader();
    }

    virtual void setGlobalScope(bool val) = 0;

    virtual bool isGlobalScope() const = 0;

};

inline Program::~Program()
{
}

};  // namespace Graphics

};  // namespace SurgSim

#endif  // SURGSIM_GRAPHICS_PROGRAM_H