/*
 * OpenClonk, http://www.openclonk.org
 *
 * Copyright (c) 2007  Günther Brammer
 * Copyright (c) 2001-2009, RedWolf Design GmbH, http://www.clonk.de
 *
 * Portions might be copyrighted by other authors who have contributed
 * to OpenClonk.
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 * See isc_license.txt for full license and disclaimer.
 *
 * "Clonk" is a registered trademark of Matthes Bender.
 * See clonk_trademark_license.txt for full license.
 */
// a class holding a 8 bpp memory surface

#ifndef INC_StdSurface8
#define INC_StdSurface8

#include <StdColors.h>

class CSurface8
{
public:
	CSurface8();
	~CSurface8();
	CSurface8(int iWdt, int iHgt); // create new surface and init it
public:
	int Wdt,Hgt,Pitch; // size of surface
	int ClipX,ClipY,ClipX2,ClipY2;
	BYTE *Bits;
	CStdPalette *pPal;            // pal for this surface (usually points to the main pal)
	bool HasOwnPal();             // return whether the surface palette is owned
	void HLine(int iX, int iX2, int iY, int iCol);
	void Polygon(int iNum, int *ipVtx, int iCol, uint8_t *conversion_table=NULL);
	void Box(int iX, int iY, int iX2, int iY2, int iCol);
	void Circle(int x, int y, int r, BYTE col);
	void ClearBox8Only(int iX, int iY, int iWdt, int iHgt); // clear box in 8bpp-surface only
	void SetPix(int iX, int iY, BYTE byCol)
	{
		// clip
		if ((iX<ClipX) || (iX>ClipX2) || (iY<ClipY) || (iY>ClipY2)) return;
		// set pix in local copy...
		if (Bits) Bits[iY*Pitch+iX]=byCol;
	}
	BYTE GetPix(int iX, int iY) // get pixel
	{
		if (iX<0 || iY<0 || iX>=Wdt || iY>=Hgt) return 0;
		return Bits ? Bits[iY*Pitch+iX] : 0;
	}
	inline BYTE _GetPix(int x, int y) // get pixel (bounds not checked)
	{
		return Bits[y*Pitch+x];
	}
	bool Create(int iWdt, int iHgt);
	void MoveFrom(CSurface *psfcFrom); // grab data from other surface - invalidates other surface
	void Clear();
	void Clip(int iX, int iY, int iX2, int iY2);
	void NoClip();
	bool Read(class CStdStream &hGroup);
	bool Save(const char *szFilename, BYTE *bpPalette = NULL);
	void GetSurfaceSize(int &irX, int &irY); // get surface size
	void AllowColor(BYTE iRngLo, BYTE iRngHi, bool fAllowZero=false);
	void SetBuffer(BYTE *pbyToBuf, int Wdt, int Hgt, int Pitch);
	void ReleaseBuffer();
protected:
	void MapBytes(BYTE *bpMap);
	bool ReadBytes(BYTE **lpbpData, void *bpTarget, int iSize);
};

#endif