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/* Copyright (C) 2004 Alistair Riddoch <alriddoch@zepler.org>
* This software 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.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
* 3. This notice may not be removed or altered from any source distribution.
*/
#ifndef LIBMD3_STRUCTURE_H
#define LIBMD3_STRUCTURE_H
#include <libmd3/inttypes.h>
/* This file contains definitions for the structures in a .md3 file on disk
* They are typically used as targets for reading blocks of data from
* disk.
*/
/* This is the md3 file header. It tells us how much of everything the file
* contains.
*
* 108 bytes
*/
typedef struct _md3_header {
uint8_t ident[4]; /* Always "IDP3" */
int32_t version; /* Always 15 */
int8_t filename[68]; /* Name of file */
int32_t frame_count; /* Number of frames */
int32_t tag_count; /* Number of tags */
int32_t mesh_count; /* Number of meshes */
int32_t skin_count; /* Number of skins */
int32_t frame_start; /* Start of frames length */
int32_t tag_start; /* Start of tags */
int32_t mesh_start; /* Start of meshes */
int32_t file_end; /* End of file */
} md3_header;
/* Frames for the bone animation.
*
* 56 bytes
*/
typedef struct _md3_frame {
float mins[3];
float maxs[3];
float position[3];
float scale;
int8_t string[16];
} md3_frame;
/* Tag indicating a connection to a tag in another file.
*
* 112 bytes
*/
typedef struct _md3_tag {
int8_t name[64]; /* Name */
float position[3]; /* Position */
float rotation[9]; /* Rotation */
} md3_tag;
/* Header for each mesh in the file, indicating how many frames, skins
* triangles, texcoords and vertixes are present. In some files we
* need to pay attention to the starts for each of these sets of data.
*
* 108 bytes
*/
typedef struct _md3_mesh {
uint8_t ident[4]; /* Always "IDP3" */
int8_t name[68]; /* Name */
int32_t frame_count; /* Number of mesh frames */
int32_t skin_count; /* Number of skins */
int32_t vertex_count; /* Number of vertices */
int32_t triangle_count; /* Number of triangles */
int32_t triangle_start; /* Relative start of triangles */
int32_t skin_start; /* Relative start of skins */
int32_t texcoord_start; /* Relative start of texcoords */
int32_t vertex_start; /* Relative start of vertices */
int32_t mesh_len; /* End of mesh */
} md3_mesh;
/* Name of texture or skin file.
*
* 68 bytes
*/
typedef struct _md3_skin {
uint8_t name[68]; /* Name */
} md3_skin;
/* Index numbers of three vertices which make a triangle
*
* 12 bytes
*/
typedef struct _md3_triangle {
int32_t vertices[3]; /* Indexes of vertices */
} md3_triangle;
/* Texture coordinate
*
* 8 bytes
*/
typedef struct _md3_texcoord {
float texcoord[2]; /* Indexes of vertices */
} md3_texcoord;
#endif /* LIBMD3_STRUCTURE_H */
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