Shader.h

/*
  COPYRIGHT (c) 2012-2024 Esri R&D Center Zurich
  TRADE SECRETS: ESRI PROPRIETARY AND CONFIDENTIAL
  Unpublished material - all rights reserved under the
  Copyright Laws of the United States and applicable international
  laws, treaties, and conventions.

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  Environmental Systems Research Institute, Inc.
  Attn: Contracts and Legal Services Department
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  USA

  email: contracts@esri.com
*/

#ifndef PRTX_SHADER_H_
#define PRTX_SHADER_H_

#include "prtx/prtx.h"
#include "prtx/Types.h"
#include "prtx/Builder.h"
#include "prtx/Content.h"

#include <string>
#include <memory>

#ifdef _MSC_VER
#   pragma warning(push)
#   pragma warning (disable : 4231 4251 4275 4660)
#endif


class CoreShader;


namespace prtx {

class Shader;
typedef std::shared_ptr<Shader> ShaderPtr;      

class PRTX_EXPORTS_API Shader : public ComparableContent {
public:
    enum KeyType {
        KT_INT,     
        KT_BOOL,    
        KT_FLOAT,   
        KT_STRING,  
        KT_TEXTURE  
    };

    virtual ~Shader();

    virtual const std::wstring& getName() const = 0;

    virtual size_t getKey(const std::wstring& name) const = 0;

    virtual bool hasKey(const std::wstring& name) const = 0;

    virtual WStringVector getKeys() const = 0;

    static ShaderPtr getDefault();

protected:
    Shader();
};


class PRTX_EXPORTS_API ShaderBuilder : public SharedPtrBuilder<Shader> {
public:
    ShaderBuilder();
    virtual ~ShaderBuilder();

    void setName(const std::wstring& name);
    size_t addKey(const std::wstring& name, Shader::KeyType type, size_t size);

    // SharedPtrBuilder interface implementation
    virtual ShaderPtr createShared(std::wstring* warnings = 0) const;
    virtual ShaderPtr createSharedAndReset(std::wstring* warnings = 0);

private:
    CoreShader* mShader;
};


} /* namespace prtx */


#ifdef _MSC_VER
#   pragma warning(pop)
#endif


#endif /* PRTX_SHADER_H_ */