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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $Workfile: $
// $Date: $
// $NoKeywords: $
//=============================================================================//
#ifndef IMAGEPACKER_H
#define IMAGEPACKER_H
#ifdef _WIN32
#pragma once
#endif
#include "utlvector.h"
#include "utlrbtree.h"
#define MAX_MAX_LIGHTMAP_WIDTH 2048
//-----------------------------------------------------------------------------
// This packs a single lightmap
//-----------------------------------------------------------------------------
class CImagePacker
{
public:
bool Reset( int nSortId, int maxLightmapWidth, int maxLightmapHeight );
bool AddBlock( int width, int height,
int *returnX, int *returnY );
void GetMinimumDimensions( int *returnWidth, int *returnHeight );
float GetEfficiency( void );
int GetSortId() const;
void IncrementSortId();
protected:
int GetMaxYIndex( int firstX, int width );
int m_MaxLightmapWidth;
int m_MaxLightmapHeight;
int m_pLightmapWavefront[MAX_MAX_LIGHTMAP_WIDTH];
int m_AreaUsed;
int m_MinimumHeight;
// For optimization purposes:
// These store the width + height of the first image
// that was unable to be stored in this image
int m_MaxBlockWidth;
int m_MaxBlockHeight;
int m_nSortID;
};
//-----------------------------------------------------------------------------
// Inline methods
//-----------------------------------------------------------------------------
inline int CImagePacker::GetSortId() const
{
return m_nSortID;
}
inline void CImagePacker::IncrementSortId()
{
++m_nSortID;
}
#endif // IMAGEPACKER_H
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