#ifndef RAGEDISPLAY_OGL_H
#define RAGEDISPLAY_OGL_H

class RageDisplay_OGL: public RageDisplay
{
public:
	RageDisplay_OGL( VideoModeParams params, bool bAllowUnacceleratedRenderer );
	virtual ~RageDisplay_OGL();
	void Update(float fDeltaTime);

	bool IsSoftwareRenderer();
	void ResolutionChanged();
	const PixelFormatDesc *GetPixelFormatDesc(PixelFormat pf) const;

	void BeginFrame();	
	void EndFrame();
	VideoModeParams GetVideoModeParams() const;
	void SetBlendMode( BlendMode mode );
	bool SupportsTextureFormat( PixelFormat pixfmt );
	bool Supports4BitPalettes();
	unsigned CreateTexture( PixelFormat pixfmt, SDL_Surface* img );
	void UpdateTexture( 
		unsigned uTexHandle, 
		SDL_Surface* img,
		int xoffset, int yoffset, int width, int height 
		);
	void DeleteTexture( unsigned uTexHandle );
	void SetTexture( RageTexture* pTexture );
	void SetTextureModeModulate();
	void SetTextureModeGlow( GlowMode m=GLOW_WHITEN );
	void SetTextureWrapping( bool b );
	int GetMaxTextureSize() const;
	void SetTextureFiltering( bool b);
	bool IsZBufferEnabled() const;
	void SetZBuffer( bool b );
	void ClearZBuffer();
	void SetBackfaceCull( bool b );
	void SetAlphaTest( bool b );
	void SetMaterial( 
		float emissive[4],
		float ambient[4],
		float diffuse[4],
		float specular[4],
		float shininess
		);
	void SetLighting( bool b );
	void SetLightOff( int index );
	void SetLightDirectional( 
		int index, 
		RageColor ambient, 
		RageColor diffuse, 
		RageColor specular, 
		RageVector3 dir );

	void DrawQuads( const RageSpriteVertex v[], int iNumVerts );
	void DrawFan( const RageSpriteVertex v[], int iNumVerts );
	void DrawStrip( const RageSpriteVertex v[], int iNumVerts );
	void DrawTriangles( const RageSpriteVertex v[], int iNumVerts );
	void DrawIndexedTriangles( const RageModelVertex v[], int iNumVerts, const Uint16* pIndices, int iNumIndices );
	void DrawLineStrip( const RageSpriteVertex v[], int iNumVerts, float LineWidth );

	CString GetTextureDiagnostics( unsigned id ) const;

	void SaveScreenshot( CString sPath );
protected:
	CString TryVideoMode( VideoModeParams params, bool &bNewDeviceOut );
	void SetViewport(int shift_left, int shift_down);
	RageMatrix GetOrthoMatrix( float l, float r, float b, float t, float zn, float zf ); 
	PixelFormat GetImgPixelFormat( SDL_Surface* &img, bool &FreeImg, int width, int height );
	bool SupportsSurfaceFormat( PixelFormat pixfmt );
};

#endif