lwo.h

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/*

Lightwave Object Loader
(LWOB, LWLO, LWO2)

converted by Dennis Verbeek ([e-mail])

These files were originally coded by Ernie Wright and were included in the 
Lightwave SDK.
*/

#pragma once
#include <iostream>
#include <fstream>
#include <vector>
#include <algorithm>
#include "Point.h"

//using namespace std;

/* chunk and subchunk IDs */

#define LWID_(a,b,c,d) (((a)<<24)|((b)<<16)|((c)<<8)|(d))

#define ID_FORM LWID_('F','O','R','M')
#define ID_LWO2 LWID_('L','W','O','2')
#define ID_LWOB LWID_('L','W','O','B')
#define ID_LWLO LWID_('L','W','L','O')

/* top-level chunks */
#define ID_LAYR LWID_('L','A','Y','R')
#define ID_TAGS LWID_('T','A','G','S')
#define ID_PNTS LWID_('P','N','T','S')
#define ID_BBOX LWID_('B','B','O','X')
#define ID_VMAP LWID_('V','M','A','P')
#define ID_VMAD LWID_('V','M','A','D')
#define ID_POLS LWID_('P','O','L','S')
#define ID_PTAG LWID_('P','T','A','G')
#define ID_ENVL LWID_('E','N','V','L')
#define ID_CLIP LWID_('C','L','I','P')
#define ID_SURF LWID_('S','U','R','F')
#define ID_DESC LWID_('D','E','S','C')
#define ID_TEXT LWID_('T','E','X','T')
#define ID_ICON LWID_('I','C','O','N')

/* polygon types */
#define ID_FACE LWID_('F','A','C','E')
#define ID_CURV LWID_('C','U','R','V')
#define ID_PTCH LWID_('P','T','C','H')
#define ID_MBAL LWID_('M','B','A','L')
#define ID_BONE LWID_('B','O','N','E')

/* polygon tags */
#define ID_SURF LWID_('S','U','R','F')
#define ID_PART LWID_('P','A','R','T')
#define ID_SMGP LWID_('S','M','G','P')

/* envelopes */
#define ID_PRE  LWID_('P','R','E',' ')
#define ID_POST LWID_('P','O','S','T')
#define ID_KEY  LWID_('K','E','Y',' ')
#define ID_SPAN LWID_('S','P','A','N')
#define ID_TCB  LWID_('T','C','B',' ')
#define ID_HERM LWID_('H','E','R','M')
#define ID_BEZI LWID_('B','E','Z','I')
#define ID_BEZ2 LWID_('B','E','Z','2')
#define ID_LINE LWID_('L','I','N','E')
#define ID_STEP LWID_('S','T','E','P')

/* clips */
#define ID_STIL LWID_('S','T','I','L')
#define ID_ISEQ LWID_('I','S','E','Q')
#define ID_ANIM LWID_('A','N','I','M')
#define ID_XREF LWID_('X','R','E','F')
#define ID_STCC LWID_('S','T','C','C')
#define ID_TIME LWID_('T','I','M','E')
#define ID_CONT LWID_('C','O','N','T')
#define ID_BRIT LWID_('B','R','I','T')
#define ID_SATR LWID_('S','A','T','R')
#define ID_HUE  LWID_('H','U','E',' ')
#define ID_GAMM LWID_('G','A','M','M')
#define ID_NEGA LWID_('N','E','G','A')
#define ID_IFLT LWID_('I','F','L','T')
#define ID_PFLT LWID_('P','F','L','T')

/* surfaces */
#define ID_COLR LWID_('C','O','L','R')
#define ID_LUMI LWID_('L','U','M','I')
#define ID_DIFF LWID_('D','I','F','F')
#define ID_SPEC LWID_('S','P','E','C')
#define ID_GLOS LWID_('G','L','O','S')
#define ID_REFL LWID_('R','E','F','L')
#define ID_RFOP LWID_('R','F','O','P')
#define ID_RIMG LWID_('R','I','M','G')
#define ID_RSAN LWID_('R','S','A','N')
#define ID_TRAN LWID_('T','R','A','N')
#define ID_TROP LWID_('T','R','O','P')
#define ID_TIMG LWID_('T','I','M','G')
#define ID_RIND LWID_('R','I','N','D')
#define ID_TRNL LWID_('T','R','N','L')
#define ID_BUMP LWID_('B','U','M','P')
#define ID_SMAN LWID_('S','M','A','N')
#define ID_SIDE LWID_('S','I','D','E')
#define ID_CLRH LWID_('C','L','R','H')
#define ID_CLRF LWID_('C','L','R','F')
#define ID_ADTR LWID_('A','D','T','R')
#define ID_SHRP LWID_('S','H','R','P')
#define ID_LINE LWID_('L','I','N','E')
#define ID_LSIZ LWID_('L','S','I','Z')
#define ID_ALPH LWID_('A','L','P','H')
#define ID_AVAL LWID_('A','V','A','L')
#define ID_GVAL LWID_('G','V','A','L')
#define ID_BLOK LWID_('B','L','O','K')

/* texture layer */
#define ID_TYPE LWID_('T','Y','P','E')
#define ID_CHAN LWID_('C','H','A','N')
#define ID_NAME LWID_('N','A','M','E')
#define ID_ENAB LWID_('E','N','A','B')
#define ID_OPAC LWID_('O','P','A','C')
#define ID_FLAG LWID_('F','L','A','G')
#define ID_PROJ LWID_('P','R','O','J')
#define ID_STCK LWID_('S','T','C','K')
#define ID_TAMP LWID_('T','A','M','P')

/* texture coordinates */
#define ID_TMAP LWID_('T','M','A','P')
#define ID_AXIS LWID_('A','X','I','S')
#define ID_CNTR LWID_('C','N','T','R')
#define ID_SIZE LWID_('S','I','Z','E')
#define ID_ROTA LWID_('R','O','T','A')
#define ID_OREF LWID_('O','R','E','F')
#define ID_FALL LWID_('F','A','L','L')
#define ID_CSYS LWID_('C','S','Y','S')

/* image map */
#define ID_IMAP LWID_('I','M','A','P')
#define ID_IMAG LWID_('I','M','A','G')
#define ID_WRAP LWID_('W','R','A','P')
#define ID_WRPW LWID_('W','R','P','W')
#define ID_WRPH LWID_('W','R','P','H')
#define ID_VMAP LWID_('V','M','A','P')
#define ID_AAST LWID_('A','A','S','T')
#define ID_PIXB LWID_('P','I','X','B')

/* procedural */
#define ID_PROC LWID_('P','R','O','C')
#define ID_COLR LWID_('C','O','L','R')
#define ID_VALU LWID_('V','A','L','U')
#define ID_FUNC LWID_('F','U','N','C')
#define ID_FTPS LWID_('F','T','P','S')
#define ID_ITPS LWID_('I','T','P','S')
#define ID_ETPS LWID_('E','T','P','S')

/* gradient */
#define ID_GRAD LWID_('G','R','A','D')
#define ID_GRST LWID_('G','R','S','T')
#define ID_GREN LWID_('G','R','E','N')
#define ID_PNAM LWID_('P','N','A','M')
#define ID_INAM LWID_('I','N','A','M')
#define ID_GRPT LWID_('G','R','P','T')
#define ID_FKEY LWID_('F','K','E','Y')
#define ID_IKEY LWID_('I','K','E','Y')

/* shader */
#define ID_SHDR LWID_('S','H','D','R')
#define ID_DATA LWID_('D','A','T','A')

/* IDs specific to LWOB */
#define ID_SRFS LWID_('S','R','F','S')
#define ID_FLAG LWID_('F','L','A','G')
#define ID_VLUM LWID_('V','L','U','M')
#define ID_VDIF LWID_('V','D','I','F')
#define ID_VSPC LWID_('V','S','P','C')
#define ID_RFLT LWID_('R','F','L','T')
#define ID_BTEX LWID_('B','T','E','X')
#define ID_CTEX LWID_('C','T','E','X')
#define ID_DTEX LWID_('D','T','E','X')
#define ID_LTEX LWID_('L','T','E','X')
#define ID_RTEX LWID_('R','T','E','X')
#define ID_STEX LWID_('S','T','E','X')
#define ID_TTEX LWID_('T','T','E','X')
#define ID_TFLG LWID_('T','F','L','G')
#define ID_TSIZ LWID_('T','S','I','Z')
#define ID_TCTR LWID_('T','C','T','R')
#define ID_TFAL LWID_('T','F','A','L')
#define ID_TVEL LWID_('T','V','E','L')
#define ID_TCLR LWID_('T','C','L','R')
#define ID_TVAL LWID_('T','V','A','L')
#define ID_TAMP LWID_('T','A','M','P')
#define ID_TIMG LWID_('T','I','M','G')
#define ID_TAAS LWID_('T','A','A','S')
#define ID_TREF LWID_('T','R','E','F')
#define ID_TOPC LWID_('T','O','P','C')
#define ID_SDAT LWID_('S','D','A','T')
#define ID_TFP0 LWID_('T','F','P','0')
#define ID_TFP1 LWID_('T','F','P','1')

/* Unknown tags */

#define ID_TFP2 LWID_('T','F','P','2')
#define ID_TFP3 LWID_('T','F','P','3')
#define ID_SHCP LWID_('S','H','C','P')
#define ID_CRVS LWID_('C','R','V','S')

/* plug-in reference */

class lwPlugin
{
public:
	lwPlugin()
	{
		ord = 0;
		name = 0;
		data = 0;
	}

	~lwPlugin()
	{
		if (ord) free(ord);
		if (name) free(name);
		if (data) free(data);
	}

	char          *ord;
	char          *name;
	int            flags;
	void          *data;
};

typedef vector<lwPlugin*> vplugins;

inline bool operator < (const lwPlugin &p1, const lwPlugin &p2 )
{
	return strcmp( p1.ord, p2.ord ) < 0;
}

class lwEParam
{
public:
	lwEParam()
	{
		val = 0.0f;
		eindex = 0;
	}
	float val;
	int   eindex;
};

class lwVParam
{
public:
	lwVParam()
	{
		val[0] = val[1] = val[2] = 0.0f;
		eindex = 0;
	}
	float val[ 3 ];
	int   eindex;
};


/* clips */

/* textures */

class lwTMap {
public:
	lwTMap()
	{
		ref_object = 0;
	}

	~lwTMap()
	{
		if (ref_object) free(ref_object);
	}
	lwVParam       size;
	lwVParam       center;
	lwVParam       rotate;
	lwVParam       falloff;
	int            fall_type;
	char          *ref_object;
	int            coord_sys;
};

class lwImageMap {
public:
	lwImageMap()
	{
		vmap_name = 0;
	}

	~lwImageMap()
	{
		if (vmap_name) free(vmap_name);
	}

	int            cindex;
	int            projection;
	char          *vmap_name;
	int            axis;
	int            wrapw_type;
	int            wraph_type;
	lwEParam       wrapw;
	lwEParam       wraph;
	float          aa_strength;
	int            aas_flags;
	int            pblend;
	lwEParam       stck;
	lwEParam       amplitude;
};

#define PROJ_PLANAR       0
#define PROJ_CYLINDRICAL  1
#define PROJ_SPHERICAL    2
#define PROJ_CUBIC        3
#define PROJ_FRONT        4

#define WRAP_NONE    0
#define WRAP_EDGE    1
#define WRAP_REPEAT  2
#define WRAP_MIRROR  3

class lwProcedural {
public:
	lwProcedural()
	{
		name = 0;
		data = 0;
	}

	~lwProcedural()
	{
		if (name) free(name);
		if (data) free(data);
	}

	int            axis;
	float          value[ 3 ];
	char          *name;
	void          *data;
};

class lwGradKey {
public:
	float          value;
	float          rgba[ 4 ];
};

class lwGradient {
public:
	lwGradient()
	{
		paramname = 0;
		itemname = 0;
		key = 0;
		ikey = 0;