#pragma once

/***********************************************************************************/
/**	\file				Shader.h
**	\brief				Header File zur Klasse Shader
*************************************************************************************
**	Autor:				Christian Roesch
*************************************************************************************
**	_tut nichts_
**
*//*********************************************************************************/

#ifndef _Shader_H
#define _Shader_H

// includes
#include <d3dx9.h>

#include <cassert>

#ifdef EXTRACODE
#include <string>
#endif

// Klassen-Deklaration
extern IDirect3DDevice9 *g_d3d_device;

/***********************************************************************************/
/** \brief	Shader _tut nichts_
*************************************************************************************
**	Genau genommen _tut dies nichts_
**
*//*********************************************************************************/

class	Shader
{
public:
	void Init();

	void DeInit();

	void Release();

	void CompileVS(const char* pShaderCode, const char* pEntryPoint, IDirect3DVertexShader9 **ppCachedShader = NULL );
	void CompilePS(const char* pShaderCode, const char* pEntryPoint );

	void SetTextureStageSettings( 
		int iTextureStage,
		int iTextureIndex= -1,
		int iTextureSettings= -1 );

	void Activate();

	static void Deactivate();

	static void SetConstants(bool bHDR = false);
	static void SetResolution(int iResX, int iResY);
	static void SetCamera(const D3DXMATRIX &mView, const D3DXMATRIX &mProj,
		const D3DXVECTOR3 &vCamPos, const D3DXVECTOR3 &vCamDir, D3DXMATRIX *pMatVP = NULL);
	static void SetTransform(const D3DXMATRIX &mWorld, const D3DXMATRIX &mWorldInverse);

#ifdef EXTRACODE
	inline int GetRevision() const { return m_iRevision; };
#endif

private:
	void Compile( 
		const char* pShaderCode, 
		const char* pEntryPoint, 
		const char* ShaderModel, 
		ID3DXBuffer** tmp );

	IDirect3DVertexShader9* m_pVSShader;
	IDirect3DPixelShader9* m_pPSShader;

	static const int m_iMaxTextureStageCount= 5;
	int m_iUsedTextureStageCount;
	int m_iTextureIndices[ m_iMaxTextureStageCount ];
	int m_iTextureSettings[ m_iMaxTextureStageCount ];

#ifdef EXTRACODE
	std::string m_strPSCode;
	std::string m_strVSCode;
	int m_iRevision;
#endif

	static D3DXMATRIX s_matVP;

};

#endif//_Shader_H

class	Shader;


/************************************************************************************
**	Ende der Datei:		Shader.h
************************************************************************************/