///////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2004, Industrial Light & Magic, a division of Lucas
// Digital Ltd. LLC
// 
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
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// notice, this list of conditions and the following disclaimer.
// *       Redistributions in binary form must reproduce the above
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// in the documentation and/or other materials provided with the
// distribution.
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// its contributors may be used to endorse or promote products derived
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///////////////////////////////////////////////////////////////////////////


#ifndef INCLUDED_IMF_TILED_MISC_H
#define INCLUDED_IMF_TILED_MISC_H

//-----------------------------------------------------------------------------
//
//	Miscellaneous stuff related to tiled files
//
//-----------------------------------------------------------------------------

#include "ImathBox.h"
#include <ImfHeader.h>
#include <stdio.h>

namespace Imf {

int levelSize (int min, int max, int l, LevelRoundingMode rmode);

Imath::Box2i dataWindowForLevel (const TileDescription &tileDesc,
				 int minX, int maxX,
				 int minY, int maxY,
				 int lx, int ly);

Imath::Box2i dataWindowForTile (const TileDescription &tileDesc,
				int minX, int maxX,
				int minY, int maxY,
				int dx, int dy,
				int lx, int ly);

size_t calculateBytesPerPixel (const Header &header);

void precalculateTileInfo (const TileDescription& tileDesc,
			   int minX, int maxX,
			   int minY, int maxY,
			   int *&numXTiles, int *&numYTiles,
			   int &numXLevels, int &numYLevels);


} // namespace Imf

#endif
