engine/engine/gl/model_hl.h

/*
 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
    Half-Life Model Renderer (Experimental) Copyright (C) 2001 James 'Ender' Brown [ender@quakesrc.org] This program is
    free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as
    published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
    This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
    warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
    details. You should have received a copy of the GNU General Public License along with this program; if not, write
    to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. fromquake.h -
    
	model_hl.h - halflife model structure
 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 */
#define HLPOLYHEADER	(('T' << 24) + ('S' << 16) + ('D' << 8) + 'I')	/* little-endian "IDST" */
#define HLMDLHEADER		"IDST"

/*
 -----------------------------------------------------------------------------------------------------------------------
    main model header
 -----------------------------------------------------------------------------------------------------------------------
 */
typedef struct
{
    int		filetypeid;	//IDSP
	int		version;	//10
    char	name[64];
    int		filesize;
    vec3_t	unknown3[5];
    int		unknown4;
    int		numbones;
    int		boneindex;
    int		numcontrollers;
    int		controllerindex;
    int		unknown5[2];
    int		numseq;
    int		seqindex;
    int		unknown6;
    int		seqgroups;
    int		numtextures;
    int		textures;
    int		unknown7[3];
    int		skins;
    int		numbodyparts;
    int		bodypartindex;
    int		unknown9[8];
} hlmdl_header_t;

/*
 -----------------------------------------------------------------------------------------------------------------------
    skin info
 -----------------------------------------------------------------------------------------------------------------------
 */
typedef struct
{
    char	name[64];
    int		flags;
    int		w;	/* width */
    int		h;	/* height */
    int		offset;	/* index */
} hlmdl_tex_t;

/*
 -----------------------------------------------------------------------------------------------------------------------
    body part index
 -----------------------------------------------------------------------------------------------------------------------
 */
typedef struct
{
    char	name[64];
    int		nummodels;
    int		base;
    int		modelindex;
} hlmdl_bodypart_t;

/*
 -----------------------------------------------------------------------------------------------------------------------
    meshes
 -----------------------------------------------------------------------------------------------------------------------
 */
typedef struct
{
    int numtris;
    int index;
    int skinindex;
    int unknown2;
    int unknown3;
} hlmdl_mesh_t;

/*
 -----------------------------------------------------------------------------------------------------------------------
    bones
 -----------------------------------------------------------------------------------------------------------------------
 */
typedef struct
{
    char	name[32];
    int		parent;
    int		unknown1;
    int		bonecontroller[6];
    float	value[6];
    float	scale[6];
} hlmdl_bone_t;

/*
 -----------------------------------------------------------------------------------------------------------------------
    bone controllers
 -----------------------------------------------------------------------------------------------------------------------
 */
typedef struct
{
    int		name;
    int		type;
    float	start;
    float	end;
    int		unknown1;
    int		index;
} hlmdl_bonecontroller_t;

/*
 -----------------------------------------------------------------------------------------------------------------------
    halflife model descriptor
 -----------------------------------------------------------------------------------------------------------------------
 */
typedef struct
{
    char	name[64];
    int		unknown1;
    float	unknown2;
    int		nummesh;
    int		meshindex;
    int		numverts;
    int		vertinfoindex;
    int		vertindex;
    int		unknown3[5];
} hlmdl_model_t;

/*
 -----------------------------------------------------------------------------------------------------------------------
    animation
 -----------------------------------------------------------------------------------------------------------------------
 */
typedef struct
{
    unsigned short	offset[6];
} hlmdl_anim_t;

/*
 -----------------------------------------------------------------------------------------------------------------------
    animation frames
 -----------------------------------------------------------------------------------------------------------------------
 */
typedef union
{
    struct {
        qbyte	valid;
        qbyte	total;
    } num;
    short	value;
} hlmdl_animvalue_t;

/*
 -----------------------------------------------------------------------------------------------------------------------
    sequence descriptions
 -----------------------------------------------------------------------------------------------------------------------
 */
typedef struct
{
    char	name[32];
    float	timing;
	int		loop;
    int		unknown1[4];
    int		numframes;
    int		unknown2[2];
    int		motiontype;
    int		motionbone;
    vec3_t	unknown3;
    int		unknown4[2];
    vec3_t	bbox[2];
    int		hasblendseq;
    int		index;
    int		unknown7[2];
    float	unknown[4];
    int		unknown8;
    unsigned int		seqindex;
    int		unknown9[4];
} hlmdl_sequencelist_t;

/*
 -----------------------------------------------------------------------------------------------------------------------
    sequence groups
 -----------------------------------------------------------------------------------------------------------------------
 */
typedef struct
{
    char			name[96];	/* should be split label[32] and name[64] */
    unsigned int	cache;
    int				data;
} hlmdl_sequencedata_t;

typedef struct
{
	int magic;		//IDSQ
	int version;	//10
	char name[64];
	int unk1;
} hlmdl_sequencefile_t;
/*
 -----------------------------------------------------------------------------------------------------------------------
    halflife model internal structure
 -----------------------------------------------------------------------------------------------------------------------
 */
typedef struct
{
    float	controller[5];				/* Position of bone controllers */
    float	adjust[5];

    /* Static pointers */
    hlmdl_header_t			*header;
    hlmdl_bone_t			*bones;
    hlmdl_bonecontroller_t	*bonectls;
	struct hlmodelshaders_s	*shaders;
	hlmdl_sequencefile_t	**animcache;
	zonegroup_t				*memgroup;
} hlmodel_t;

#define MAX_ANIM_GROUPS	16	//submodel files containing anim data.
typedef struct	//this is stored as the cache. an hlmodel_t is generated when drawing
{
    hlmdl_header_t			*header;
    hlmdl_bone_t			*bones;
    hlmdl_bonecontroller_t	*bonectls;
	hlmdl_sequencefile_t	*animcache[MAX_ANIM_GROUPS];
	struct hlmodelshaders_s
	{
		char name[MAX_QPATH];
		texnums_t defaulttex;
		shader_t *shader;
		int w, h;
	} *shaders;
	short *skins;
	int numskins;
} hlmodelcache_t;

/* HL mathlib prototypes: */
void	QuaternionGLAngle(const vec3_t angles, vec4_t quaternion);
void	QuaternionGLMatrix(float x, float y, float z, float w, vec4_t *GLM);
//void	UploadTexture(hlmdl_tex_t *ptexture, qbyte *data, qbyte *pal);

/* HL drawing */
qboolean QDECL Mod_LoadHLModel (model_t *mod, void *buffer, size_t fsize);
void	R_DrawHLModel(entity_t	*curent);

/* physics stuff */
void *Mod_GetHalfLifeModelData(model_t *mod);