anki-3d-engine/include/anki/resource/MaterialShaderProgramCreator.h

#ifndef ANKI_RESOURCE_MATERIAL_SHADER_PROGRAM_CREATOR_H
#define ANKI_RESOURCE_MATERIAL_SHADER_PROGRAM_CREATOR_H

#include "anki/util/StringList.h"

namespace anki {

class XmlElement;

/// Creator of shader programs. This class parses between
/// <shaderProgam></shaderProgram> located inside a <material></material>
/// and creates the source of a custom program.
class MaterialShaderProgramCreator
{
public:
	MaterialShaderProgramCreator(const XmlElement& pt);
	~MaterialShaderProgramCreator();

	/// Get the shader program source code. This is the one and only public
	/// member
	const std::string& getShaderProgramSource() const
	{
		return source;
	}

private:
	/// The lines of the shader program source
	StringList srcLines;

	std::string source; ///< Shader program final source

	/// Used for shorting vectors of strings. Used in std::sort
	static bool compareStrings(const std::string& a, const std::string& b);

	/// Parse what is within the
	/// @code <shaderProgram></shaderProgram> @endcode
	void parseShaderProgramTag(const XmlElement& el);

	/// Parse what is within the
	/// @code <shader></shader> @endcode
	void parseShaderTag(const XmlElement& el);

	/// Parse what is within the @code <input></input> @endcode
	void parseInputTag(const XmlElement& el,
		std::string& line);

	/// Parse what is within the @code <operation></operation> @endcode
	void parseOperationTag(const XmlElement& el);
};

} // end namespace anki

#endif