genesis-3d_engine/Engine/addons/shadercompiler/Compilers/CGTool.h

/****************************************************************************
Copyright (c) 2011-2013,WebJet Business Division,CYOU
 
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#ifndef _CGTOOL_H_
#define _CGTOOL_H_

#include "Cg/cg.h"
#include "util/string.h"
#include "util/array.h"
#include "core/refcounted.h"
#include "core/singleton.h"

namespace ShaderProgramCompiler
{
	class ShaderPass;
	class GpuProgramCompiler;

	class CGTool : public Core::RefCounted
{
	__DeclareClass(CGTool);
	__DeclareImageSingleton(CGTool);

public:

	CGTool();

	~CGTool();

public:

	void InitCG();

	void CloseCG();

	void Prepare(const ShaderPass* pPass, const GpuProgramCompiler* pCompiler);

	bool Compile(const Util::String& sourceCode, const Util::String& entryName);

	void GetRegisterIndex();

	void SetProfile(const CGprofile& profile);

	void Clean();

	const Util::String& GetCompiled() const;

	const Util::String& GetBindings() const;

protected:

	void _TrimCode();

	void _IterateParamter(const CGparameter cgParam, Util::String& bindings);

	bool _HasProgramParameter(CGparameter& cgParam);

	bool _HasGlobalParameter(CGparameter& cgParam);

	CGparameter _ResurseParameter(const CGparameter cgParam);

private:

	CGcontext	   m_Context;
	CGerror		   m_Error;
	CGprofile      m_Profile;
	CGprogram      m_CGProgram;

	Util::Array< Util::String > m_Parameters;

	Util::String   m_sIncludeContent;

	Util::String   m_sAssembly;

	Util::String   m_sBindings;

};

inline void CGTool::SetProfile(const CGprofile& profile)
{
	m_Profile = profile; 
}

inline bool CGTool::_HasProgramParameter(CGparameter& cgParam)
{
	cgParam = cgGetFirstLeafParameter(m_CGProgram, CG_PROGRAM);
	
	return cgParam != NULL;
}

inline bool CGTool::_HasGlobalParameter(CGparameter& cgParam)
{
	cgParam = cgGetFirstLeafParameter(m_CGProgram, CG_GLOBAL);

	return cgParam != NULL;
}

inline CGparameter CGTool::_ResurseParameter(const CGparameter cgParam)
{
	return cgGetNextLeafParameter(cgParam);
}

inline void CGTool::Clean()
{
	cgDestroyProgram(m_CGProgram);
	m_CGProgram = NULL;
	
	m_sAssembly.Clear();
	m_sBindings.Clear();
}

inline const Util::String& CGTool::GetCompiled() const
{
	return m_sAssembly;
}

inline const Util::String& CGTool::GetBindings() const
{
	return m_sBindings;
}

}






#endif