forked from bartvdbraak/blender
197 lines
7.5 KiB
C
197 lines
7.5 KiB
C
/**
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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/*
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Header for PLY polygon files.
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- Greg Turk, March 1994
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A PLY file contains a single polygonal _object_.
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An object is composed of lists of _elements_. Typical elements are
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vertices, faces, edges and materials.
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Each type of element for a given object has one or more _properties_
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associated with the element type. For instance, a vertex element may
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have as properties three floating-point values x,y,z and three unsigned
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chars for red, green and blue.
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---------------------------------------------------------------
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Copyright (c) 1994 The Board of Trustees of The Leland Stanford
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Junior University. All rights reserved.
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Permission to use, copy, modify and distribute this software and its
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documentation for any purpose is hereby granted without fee, provided
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that the above copyright notice and this permission notice appear in
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all copies of this software and that you do not sell the software.
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THE SOFTWARE IS PROVIDED "AS IS" AND WITHOUT WARRANTY OF ANY KIND,
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EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
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WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#ifndef __PLY_H__
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#define __PLY_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdio.h>
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#include <stddef.h>
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#define PLY_ASCII 1 /* ascii PLY file */
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#define PLY_BINARY_BE 2 /* binary PLY file, big endian */
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#define PLY_BINARY_LE 3 /* binary PLY file, little endian */
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#define PLY_OKAY 0 /* ply routine worked okay */
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#define PLY_ERROR -1 /* error in ply routine */
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/* scalar data types supported by PLY format */
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#define PLY_START_TYPE 0
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#define PLY_CHAR 1
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#define PLY_SHORT 2
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#define PLY_INT 3
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#define PLY_UCHAR 4
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#define PLY_USHORT 5
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#define PLY_UINT 6
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#define PLY_FLOAT 7
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#define PLY_DOUBLE 8
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#define PLY_END_TYPE 9
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#define PLY_SCALAR 0
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#define PLY_LIST 1
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typedef struct PlyProperty { /* description of a property */
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char *name; /* property name */
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int external_type; /* file's data type */
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int internal_type; /* program's data type */
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int offset; /* offset bytes of prop in a struct */
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int is_list; /* 1 = list, 0 = scalar */
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int count_external; /* file's count type */
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int count_internal; /* program's count type */
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int count_offset; /* offset byte for list count */
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} PlyProperty;
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typedef struct PlyElement { /* description of an element */
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char *name; /* element name */
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int num; /* number of elements in this object */
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int size; /* size of element (bytes) or -1 if variable */
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int nprops; /* number of properties for this element */
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PlyProperty **props; /* list of properties in the file */
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char *store_prop; /* flags: property wanted by user? */
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int other_offset; /* offset to un-asked-for props, or -1 if none*/
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int other_size; /* size of other_props structure */
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} PlyElement;
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typedef struct PlyOtherProp { /* describes other properties in an element */
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char *name; /* element name */
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int size; /* size of other_props */
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int nprops; /* number of properties in other_props */
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PlyProperty **props; /* list of properties in other_props */
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} PlyOtherProp;
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typedef struct OtherData { /* for storing other_props for an other element */
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void *other_props;
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} OtherData;
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typedef struct OtherElem { /* data for one "other" element */
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char *elem_name; /* names of other elements */
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int elem_count; /* count of instances of each element */
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OtherData **other_data; /* actual property data for the elements */
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PlyOtherProp *other_props; /* description of the property data */
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} OtherElem;
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typedef struct PlyOtherElems { /* "other" elements, not interpreted by user */
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int num_elems; /* number of other elements */
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OtherElem *other_list; /* list of data for other elements */
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} PlyOtherElems;
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typedef struct PlyFile { /* description of PLY file */
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FILE *fp; /* file pointer */
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int file_type; /* ascii or binary */
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float version; /* version number of file */
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int nelems; /* number of elements of object */
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PlyElement **elems; /* list of elements */
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int num_comments; /* number of comments */
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char **comments; /* list of comments */
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int num_obj_info; /* number of items of object information */
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char **obj_info; /* list of object info items */
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PlyElement *which_elem; /* which element we're currently writing */
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PlyOtherElems *other_elems; /* "other" elements from a PLY file */
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} PlyFile;
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/* memory allocation */
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static char *my_alloc();
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#define myalloc(mem_size) my_alloc((mem_size), __LINE__, __FILE__)
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/*** delcaration of routines ***/
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extern PlyFile *ply_write(FILE *, int, char **, int);
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extern PlyFile *ply_open_for_writing(char *, int, char **, int, float *);
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extern void ply_describe_element(PlyFile *, char *, int, int, PlyProperty *);
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extern void ply_describe_property(PlyFile *, char *, PlyProperty *);
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extern void ply_element_count(PlyFile *, char *, int);
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extern void ply_header_complete(PlyFile *);
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extern void ply_put_element_setup(PlyFile *, char *);
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extern void ply_put_element(PlyFile *, void *);
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extern void ply_put_comment(PlyFile *, char *);
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extern void ply_put_obj_info(PlyFile *, char *);
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extern PlyFile *ply_read(FILE *, int *, char ***);
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extern PlyFile *ply_open_for_reading( char *, int *, char ***, int *, float *);
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extern PlyProperty **ply_get_element_description(PlyFile *, char *, int*, int*);
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extern void ply_get_element_setup( PlyFile *, char *, int, PlyProperty *);
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extern void ply_get_property(PlyFile *, char *, PlyProperty *);
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extern PlyOtherProp *ply_get_other_properties(PlyFile *, char *, int);
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extern void ply_get_element(PlyFile *, void *);
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extern char **ply_get_comments(PlyFile *, int *);
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extern char **ply_get_obj_info(PlyFile *, int *);
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extern void ply_close(PlyFile *);
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extern void ply_get_info(PlyFile *, float *, int *);
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extern PlyOtherElems *ply_get_other_element (PlyFile *, char *, int);
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extern void ply_describe_other_elements ( PlyFile *, PlyOtherElems *);
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extern void ply_put_other_elements (PlyFile *);
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extern void ply_free_other_elements (PlyOtherElems *);
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extern int equal_strings(char *, char *);
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#ifdef __cplusplus
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}
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#endif
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#endif /* !__PLY_H__ */
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