gtkradiant/libs/picomodel/pm_fm.h

/* -----------------------------------------------------------------------------

   PicoModel Library

   Copyright (c) 2002, Randy Reddig & seaw0lf
   All rights reserved.

   Redistribution and use in source and binary forms, with or without modification,
   are permitted provided that the following conditions are met:

   Redistributions of source code must retain the above copyright notice, this list
   of conditions and the following disclaimer.

   Redistributions in binary form must reproduce the above copyright notice, this
   list of conditions and the following disclaimer in the documentation and/or
   other materials provided with the distribution.

   Neither the names of the copyright holders nor the names of its contributors may
   be used to endorse or promote products derived from this software without
   specific prior written permission.

   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
   ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
   ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
   ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

   ----------------------------------------------------------------------------- */

// This header file is based from the following:

/*
    FlexModel.H - Header file for FlexModel file structure

    By Chris Burke
    serotonin@earthlink.net
 */

#ifndef __PM_FM_H__
#define __PM_FM_H__

#include "picointernal.h"


//
//	Absolute limits (from QData / QMView source)
//
#define MAX_FM_TRIANGLES    2048
#define MAX_FM_VERTS        2048
#define MAX_FM_FRAMES       2048
#define MAX_FM_SKINS        64
#define MAX_FM_SKINNAME     64
#define MAX_FM_MESH_NODES   16

#define DTRIVERTX_V0   0
#define DTRIVERTX_V1   1
#define DTRIVERTX_V2   2
#define DTRIVERTX_LNI  3
#define DTRIVERTX_SIZE 4

#define SKINPAGE_WIDTH 640
#define SKINPAGE_HEIGHT 480

#define ENCODED_WIDTH_X 92
#define ENCODED_WIDTH_Y 475
#define ENCODED_HEIGHT_X 128
#define ENCODED_HEIGHT_Y 475

#define SCALE_ADJUST_FACTOR 0.96

#define INFO_HEIGHT 5
#define INFO_Y ( SKINPAGE_HEIGHT - INFO_HEIGHT )


//
//	Generic header on every chunk
//
#define FM_MAXCHUNKIDENT    32L
typedef struct
{
	char ident[FM_MAXCHUNKIDENT];
	unsigned int version;
	unsigned int size;
} fm_chunk_header_t;

//
//	The format of the "header" chunk
//
#define FM_HEADERCHUNKNAME  "header"
#define FM_HEADERCHUNKVER   2
#define FM_HEADERCHUNKSIZE  40
typedef struct
{
	int skinWidth;              // in pixels
	int skinHeight;             // in pixels
	int frameSize;              // size of each frame (in bytes)
	int numSkins;               // number of skins
	int numXYZ;                 // number of unique vertices in 3D space
	int numST;                  // number of unique vertices in texture space
	int numTris;                // number of unique triangles
	int numGLCmds;              // # 32-bit elements in strip/fan command list
	int numFrames;              // number of animation frames
	int numMeshNodes;               // number of mesh nodes
} fm_header_t;

//
//	The format of an entry in the "skin" chunk.
//	The number of entries is given in the fmheader chunk
//
#define FM_SKINCHUNKNAME    "skin"
#define FM_SKINCHUNKVER     1
#define FM_MAXPATHLENGTH    64L
#define FM_SKINPATHSIZE ( FM_MAXPATHLENGTH )
typedef struct
{
	char path[FM_SKINPATHSIZE];                 //	path, relative to 'base'
} fm_skinpath_t;

//
//	The format of the "st coord" chunk. This is a list
//	of unique skin texture (u, v) coordinates to be mapped
//	to verteces of the model
//
#define FM_STCOORDCHUNKNAME "st coord"
#define FM_STCOORDCHUNKVER  1
#define FM_STCOORDUVSIZE    ( 2L + 2L )

typedef struct
{
	short s;
	short t;
} fm_st_t;

//
//	The format of the "tris" chunk. This is a list of vertex indeces
//	in 3D space, and the corresponding vertex indeces in texture space.
//
#define FM_TRISCHUNKNAME    "tris"
#define FM_TRISCHUNKVER     1
#define FM_TRISINFOSIZE     ( 2L * 3 + 2L * 3 )

typedef struct
{
	short index_xyz[3];
	short index_st[3];
} fm_xyz_st_t;


//
//	The format of the "frames" chunk. This is a list of animation
//	frames, each specifying the coordinates and "light normal" index
//	of every vertex of the model in 3D space.
//
#define FM_FRAMESCHUNKNAME  "frames"
#define FM_FRAMESCHUNKVER   1

#define FM_NUMVERTEXNORMALS 162

// Frame info
typedef struct
{
	byte v[3];                          //	scaled by header info
	byte lightnormalindex;              //	index in canned table of closest vertex normal
} fm_vert_normal_t;

typedef struct
{
	float scale[3];                     //	multiply byte verts by this
	float translate[3];                 //	then add this
	char name[16];                      //	frame name
} fm_framehdr_t;

typedef struct
{
	fm_framehdr_t header;                   //	One header per frame
	fm_vert_normal_t verts[1];              //	variable number of these
} fm_frame_t;

typedef struct
{
	fm_chunk_header_t   *fm_header_hdr;
	fm_header_t     *fm_header;
	fm_chunk_header_t   *fm_skin_hdr;
	fm_skinpath_t       *fm_skin;
	fm_chunk_header_t   *fm_st_hdr;
	fm_st_t         *fm_st;
	fm_chunk_header_t   *fm_tri_hdr;
	fm_xyz_st_t     *fm_tri;
	fm_chunk_header_t   *fm_frame_hdr;
	fm_frame_t      *fm_frame;
} fm_t;

float fm_normals[FM_NUMVERTEXNORMALS][3] = {
	{-0.525731f, 0.000000f, 0.850651f},
	{-0.442863f, 0.238856f, 0.864188f},
	{-0.295242f, 0.000000f, 0.955423f},
	{-0.309017f, 0.500000f, 0.809017f},
	{-0.162460f, 0.262866f, 0.951056f},
	{0.000000f, 0.000000f, 1.000000f},
	{0.000000f, 0.850651f, 0.525731f},
	{-0.147621f, 0.716567f, 0.681718f},
	{0.147621f, 0.716567f, 0.681718f},
	{0.000000f, 0.525731f, 0.850651f},
	{0.309017f, 0.500000f, 0.809017f},
	{0.525731f, 0.000000f, 0.850651f},
	{0.295242f, 0.000000f, 0.955423f},
	{0.442863f, 0.238856f, 0.864188f},
	{0.162460f, 0.262866f, 0.951056f},
	{-0.681718f, 0.147621f, 0.716567f},
	{-0.809017f, 0.309017f, 0.500000f},
	{-0.587785f, 0.425325f, 0.688191f},
	{-0.850651f, 0.525731f, 0.000000f},
	{-0.864188f, 0.442863f, 0.238856f},
	{-0.716567f, 0.681718f, 0.147621f},
	{-0.688191f, 0.587785f, 0.425325f},
	{-0.500000f, 0.809017f, 0.309017f},
	{-0.238856f, 0.864188f, 0.442863f},
	{-0.425325f, 0.688191f, 0.587785f},
	{-0.716567f, 0.681718f, -0.147621f},
	{-0.500000f, 0.809017f, -0.309017f},
	{-0.525731f, 0.850651f, 0.000000f},
	{0.000000f, 0.850651f, -0.525731f},
	{-0.238856f, 0.864188f, -0.442863f},
	{0.000000f, 0.955423f, -0.295242f},
	{-0.262866f, 0.951056f, -0.162460f},
	{0.000000f, 1.000000f, 0.000000f},
	{0.000000f, 0.955423f, 0.295242f},
	{-0.262866f, 0.951056f, 0.162460f},
	{0.238856f, 0.864188f, 0.442863f},
	{0.262866f, 0.951056f, 0.162460f},
	{0.500000f, 0.809017f, 0.309017f},
	{0.238856f, 0.864188f, -0.442863f},
	{0.262866f, 0.951056f, -0.162460f},
	{0.500000f, 0.809017f, -0.309017f},
	{0.850651f, 0.525731f, 0.000000f},
	{0.716567f, 0.681718f, 0.147621f},
	{0.716567f, 0.681718f, -0.147621f},
	{0.525731f, 0.850651f, 0.000000f},
	{0.425325f, 0.688191f, 0.587785f},
	{0.864188f, 0.442863f, 0.238856f},
	{0.688191f, 0.587785f, 0.425325f},
	{0.809017f, 0.309017f, 0.500000f},
	{0.681718f, 0.147621f, 0.716567f},
	{0.587785f, 0.425325f, 0.688191f},
	{0.955423f, 0.295242f, 0.000000f},
	{1.000000f, 0.000000f, 0.000000f},
	{0.951056f, 0.162460f, 0.262866f},
	{0.850651f, -0.525731f, 0.000000f},
	{0.955423f, -0.295242f, 0.000000f},
	{0.864188f, -0.442863f, 0.238856f},
	{0.951056f, -0.162460f, 0.262866f},
	{0.809017f, -0.309017f, 0.500000f},
	{0.681718f, -0.147621f, 0.716567f},
	{0.850651f, 0.000000f, 0.525731f},
	{0.864188f, 0.442863f, -0.238856f},
	{0.809017f, 0.309017f, -0.500000f},
	{0.951056f, 0.162460f, -0.262866f},
	{0.525731f, 0.000000f, -0.850651f},
	{0.681718f, 0.147621f, -0.716567f},
	{0.681718f, -0.147621f, -0.716567f},
	{0.850651f, 0.000000f, -0.525731f},
	{0.809017f, -0.309017f, -0.500000f},
	{0.864188f, -0.442863f, -0.238856f},
	{0.951056f, -0.162460f, -0.262866f},
	{0.147621f, 0.716567f, -0.681718f},
	{0.309017f, 0.500000f, -0.809017f},
	{0.425325f, 0.688191f, -0.587785f},
	{0.442863f, 0.238856f, -0.864188f},
	{0.587785f, 0.425325f, -0.688191f},
	{0.688191f, 0.587785f, -0.425325f},
	{-0.147621f, 0.716567f, -0.681718f},
	{-0.309017f, 0.500000f, -0.809017f},
	{0.000000f, 0.525731f, -0.850651f},
	{-0.525731f, 0.000000f, -0.850651f},
	{-0.442863f, 0.238856f, -0.864188f},
	{-0.295242f, 0.000000f, -0.955423f},
	{-0.162460f, 0.262866f, -0.951056f},
	{0.000000f, 0.000000f, -1.000000f},
	{0.295242f, 0.000000f, -0.955423f},
	{0.162460f, 0.262866f, -0.951056f},
	{-0.442863f, -0.238856f, -0.864188f},
	{-0.309017f, -0.500000f, -0.809017f},
	{-0.162460f, -0.262866f, -0.951056f},
	{0.000000f, -0.850651f, -0.525731f},
	{-0.147621f, -0.716567f, -0.681718f},
	{0.147621f, -0.716567f, -0.681718f},
	{0.000000f, -0.525731f, -0.850651f},
	{0.309017f, -0.500000f, -0.809017f},
	{0.442863f, -0.238856f, -0.864188f},
	{0.162460f, -0.262866f, -0.951056f},
	{0.238856f, -0.864188f, -0.442863f},
	{0.500000f, -0.809017f, -0.309017f},
	{0.425325f, -0.688191f, -0.587785f},
	{0.716567f, -0.681718f, -0.147621f},
	{0.688191f, -0.587785f, -0.425325f},
	{0.587785f, -0.425325f, -0.688191f},
	{0.000000f, -0.955423f, -0.295242f},
	{0.000000f, -1.000000f, 0.000000f},
	{0.262866f, -0.951056f, -0.162460f},
	{0.000000f, -0.850651f, 0.525731f},
	{0.000000f, -0.955423f, 0.295242f},
	{0.238856f, -0.864188f, 0.442863f},
	{0.262866f, -0.951056f, 0.162460f},
	{0.500000f, -0.809017f, 0.309017f},
	{0.716567f, -0.681718f, 0.147621f},
	{0.525731f, -0.850651f, 0.000000f},
	{-0.238856f, -0.864188f, -0.442863f},
	{-0.500000f, -0.809017f, -0.309017f},
	{-0.262866f, -0.951056f, -0.162460f},
	{-0.850651f, -0.525731f, 0.000000f},
	{-0.716567f, -0.681718f, -0.147621f},
	{-0.716567f, -0.681718f, 0.147621f},
	{-0.525731f, -0.850651f, 0.000000f},
	{-0.500000f, -0.809017f, 0.309017f},
	{-0.238856f, -0.864188f, 0.442863f},
	{-0.262866f, -0.951056f, 0.162460f},
	{-0.864188f, -0.442863f, 0.238856f},
	{-0.809017f, -0.309017f, 0.500000f},
	{-0.688191f, -0.587785f, 0.425325f},
	{-0.681718f, -0.147621f, 0.716567f},
	{-0.442863f, -0.238856f, 0.864188f},
	{-0.587785f, -0.425325f, 0.688191f},
	{-0.309017f, -0.500000f, 0.809017f},
	{-0.147621f, -0.716567f, 0.681718f},
	{-0.425325f, -0.688191f, 0.587785f},
	{-0.162460f, -0.262866f, 0.951056f},
	{0.442863f, -0.238856f, 0.864188f},
	{0.162460f, -0.262866f, 0.951056f},
	{0.309017f, -0.500000f, 0.809017f},
	{0.147621f, -0.716567f, 0.681718f},
	{0.000000f, -0.525731f, 0.850651f},
	{0.425325f, -0.688191f, 0.587785f},
	{0.587785f, -0.425325f, 0.688191f},
	{0.688191f, -0.587785f, 0.425325f},
	{-0.955423f, 0.295242f, 0.000000f},
	{-0.951056f, 0.162460f, 0.262866f},
	{-1.000000f, 0.000000f, 0.000000f},
	{-0.850651f, 0.000000f, 0.525731f},
	{-0.955423f, -0.295242f, 0.000000f},
	{-0.951056f, -0.162460f, 0.262866f},
	{-0.864188f, 0.442863f, -0.238856f},
	{-0.951056f, 0.162460f, -0.262866f},
	{-0.809017f, 0.309017f, -0.500000f},
	{-0.864188f, -0.442863f, -0.238856f},
	{-0.951056f, -0.162460f, -0.262866f},
	{-0.809017f, -0.309017f, -0.500000f},
	{-0.681718f, 0.147621f, -0.716567f},
	{-0.681718f, -0.147621f, -0.716567f},
	{-0.850651f, 0.000000f, -0.525731f},
	{-0.688191f, 0.587785f, -0.425325f},
	{-0.587785f, 0.425325f, -0.688191f},
	{-0.425325f, 0.688191f, -0.587785f},
	{-0.425325f, -0.688191f, -0.587785f},
	{-0.587785f, -0.425325f, -0.688191f},
	{-0.688191f, -0.587785f, -0.425325f},
};

#endif