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/*
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/*
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Header for PLY polygon files.
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Header for PLY polygon files.
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4 |
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- Greg Turk, March 1994
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- Greg Turk, March 1994
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6 |
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A PLY file contains a single polygonal _object_.
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A PLY file contains a single polygonal _object_.
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8 |
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An object is composed of lists of _elements_. Typical elements are
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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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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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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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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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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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chars for red, green and blue.
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---------------------------------------------------------------
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---------------------------------------------------------------
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Copyright (c) 1994 The Board of Trustees of The Leland Stanford
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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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Junior University. All rights reserved.
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Permission to use, copy, modify and distribute this software and its
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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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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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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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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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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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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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WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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*/
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*/
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#ifndef __PLY_H__
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#ifndef __PLY_H__
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#define __PLY_H__
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#define __PLY_H__
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#ifdef __cplusplus
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#ifdef __cplusplus
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extern "C" {
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extern "C" {
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#endif
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38 |
#endif
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39 |
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#include <stdio.h>
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#include <stdio.h>
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#include <stddef.h>
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#include <stddef.h>
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#ifdef LINUX
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#ifdef LINUX
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#include <sys/types.h>
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#include <sys/types.h>
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#endif
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#endif
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#define PLY_ASCII 1 /* ascii PLY file */
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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_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_BINARY_LE 3 /* binary PLY file, little endian */
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#define PLY_OKAY 0 /* ply routine worked okay */
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51 |
#define PLY_OKAY 0 /* ply routine worked okay */
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#define PLY_ERROR -1 /* error in ply routine */
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52 |
#define PLY_ERROR -1 /* error in ply routine */
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| 53 |
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53 |
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/* Define BIG/LITTLE_ENDIAN FLAGS if not already */
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/* Define BIG/LITTLE_ENDIAN FLAGS if not already */
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55 |
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#ifndef BIG_ENDIAN
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#ifndef BIG_ENDIAN
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#define BIG_ENDIAN 4321 /* Flag for native Big Endian machines */
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#define BIG_ENDIAN 4321 /* Flag for native Big Endian machines */
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#endif
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#endif
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#ifndef LITTLE_ENDIAN
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#ifndef LITTLE_ENDIAN
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#define LITTLE_ENDIAN 1234 /* Flag for native Little Endian machines */
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#define LITTLE_ENDIAN 1234 /* Flag for native Little Endian machines */
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#endif
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#endif
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/* Define BYTE_ORDER for big/little endian machines */
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/* Define BYTE_ORDER for big/little endian machines */
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/* This assumes Linux/Win32 are on PC, all else is SGI... */
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/* This assumes Linux/Win32 are on PC, all else is SGI... */
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#ifndef BYTE_ORDER
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#ifndef BYTE_ORDER
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#if defined (LINUX) || defined (WIN32)
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#if defined (LINUX) || defined (WIN32)
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#define BYTE_ORDER LITTLE_ENDIAN
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#define BYTE_ORDER LITTLE_ENDIAN
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#else
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#else
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#define BYTE_ORDER BIG_ENDIAN
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#define BYTE_ORDER BIG_ENDIAN
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#endif
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70 |
#endif
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#endif
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#endif
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/* scalar data types supported by PLY format */
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73 |
/* scalar data types supported by PLY format */
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#define PLY_START_TYPE 0
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75 |
#define PLY_START_TYPE 0
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#define PLY_CHAR 1
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76 |
#define PLY_CHAR 1
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#define PLY_SHORT 2
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77 |
#define PLY_SHORT 2
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#define PLY_INT 3
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#define PLY_INT 3
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#define PLY_UCHAR 4
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79 |
#define PLY_UCHAR 4
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#define PLY_USHORT 5
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80 |
#define PLY_USHORT 5
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#define PLY_UINT 6
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81 |
#define PLY_UINT 6
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#define PLY_FLOAT 7
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#define PLY_FLOAT 7
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#define PLY_DOUBLE 8
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#define PLY_DOUBLE 8
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#define PLY_END_TYPE 9
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#define PLY_END_TYPE 9
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#define PLY_SCALAR 0
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#define PLY_SCALAR 0
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#define PLY_LIST 1
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#define PLY_LIST 1
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typedef struct PlyProperty { /* description of a property */
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typedef struct PlyProperty { /* description of a property */
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char *name; /* property name */
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char *name; /* property name */
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int external_type; /* file's data type */
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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 internal_type; /* program's data type */
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int offset; /* offset bytes of prop in a struct */
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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 is_list; /* 1 = list, 0 = scalar */
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int count_external; /* file's count type */
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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_internal; /* program's count type */
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int count_offset; /* offset byte for list count */
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100 |
int count_offset; /* offset byte for list count */
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101 |
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} PlyProperty;
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102 |
} PlyProperty;
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103 |
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typedef struct PlyElement { /* description of an element */
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typedef struct PlyElement { /* description of an element */
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char *name; /* element name */
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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 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 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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int nprops; /* number of properties for this element */
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PlyProperty **props; /* list of properties in the file */
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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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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_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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int other_size; /* size of other_props structure */
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} PlyElement;
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} PlyElement;
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typedef struct PlyOtherProp { /* describes other properties in an element */
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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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char *name; /* element name */
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int size; /* size of other_props */
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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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int nprops; /* number of properties in other_props */
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PlyProperty **props; /* list 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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} PlyOtherProp;
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typedef struct OtherData { /* for storing other_props for an other element */
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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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void *other_props;
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} OtherData;
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} OtherData;
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typedef struct OtherElem { /* data for one "other" element */
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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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char *elem_name; /* names of other elements */
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int elem_count; /* count of instances of each element */
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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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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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PlyOtherProp *other_props; /* description of the property data */
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} OtherElem;
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} OtherElem;
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typedef struct PlyOtherElems { /* "other" elements, not interpreted by user */
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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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int num_elems; /* number of other elements */
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OtherElem *other_list; /* list of data for other elements */
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OtherElem *other_list; /* list of data for other elements */
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} PlyOtherElems;
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} PlyOtherElems;
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137 |
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typedef struct PlyFile { /* description of PLY file */
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typedef struct PlyFile { /* description of PLY file */
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FILE *fp; /* file pointer */
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FILE *fp; /* file pointer */
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int file_type; /* ascii or binary */
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int file_type; /* ascii or binary */
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float version; /* version number of file */
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141 |
float version; /* version number of file */
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int nelems; /* number of elements of object */
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142 |
int nelems; /* number of elements of object */
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PlyElement **elems; /* list of elements */
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143 |
PlyElement **elems; /* list of elements */
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int num_comments; /* number of comments */
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144 |
int num_comments; /* number of comments */
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char **comments; /* list of comments */
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145 |
char **comments; /* list of comments */
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int num_obj_info; /* number of items of object information */
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146 |
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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147 |
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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148 |
PlyElement *which_elem; /* which element we're currently writing */
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| 149 |
PlyOtherElems *other_elems; /* "other" elements from a PLY file */
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149 |
PlyOtherElems *other_elems; /* "other" elements from a PLY file */
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} PlyFile;
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150 |
} PlyFile;
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| 151 |
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151 |
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| 152 |
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152 |
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/*** delcaration of routines ***/
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153 |
/*** delcaration of routines ***/
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154 |
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extern PlyFile *ply_write(FILE *, int, char **, int);
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155 |
extern PlyFile *ply_write(FILE *, int, char **, int);
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extern PlyFile *ply_open_for_writing(const char *, int, char **, int, float *);
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156 |
extern PlyFile *ply_open_for_writing(const char *, int, char **, int, float *);
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extern void ply_describe_element(PlyFile *, char *, int, int, PlyProperty *);
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157 |
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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158 |
extern void ply_describe_property(PlyFile *, char *, PlyProperty *);
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extern void ply_element_count(PlyFile *, char *, int);
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159 |
extern void ply_element_count(PlyFile *, char *, int);
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extern void ply_header_complete(PlyFile *);
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160 |
extern void ply_header_complete(PlyFile *);
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extern void ply_put_element_setup(PlyFile *, char *);
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161 |
extern void ply_put_element_setup(PlyFile *, char *);
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extern void ply_put_element(PlyFile *, void *);
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162 |
extern void ply_put_element(PlyFile *, void *);
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| 163 |
extern void ply_put_comment(PlyFile *, char *);
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163 |
extern void ply_put_comment(PlyFile *, char *);
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| 164 |
extern void ply_put_obj_info(PlyFile *, char *);
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164 |
extern void ply_put_obj_info(PlyFile *, char *);
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extern PlyFile *ply_read(FILE *, int *, char ***);
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165 |
extern PlyFile *ply_read(FILE *, int *, char ***);
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| 166 |
extern PlyFile *ply_open_for_reading( const char *, int *, char ***, int *, float *);
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166 |
extern PlyFile *ply_open_for_reading( const char *, int *, char ***, int *, float *);
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| 167 |
extern PlyProperty **ply_get_element_description(PlyFile *, char *, int*, int*);
|
167 |
extern PlyProperty **ply_get_element_description(PlyFile *, char *, int*, int*);
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| 168 |
extern void ply_get_element_setup( PlyFile *, char *, int, PlyProperty *);
|
168 |
extern void ply_get_element_setup( PlyFile *, char *, int, PlyProperty *);
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| 169 |
extern void ply_get_property(PlyFile *, char *, PlyProperty *);
|
169 |
extern void ply_get_property(PlyFile *, char *, PlyProperty *);
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| 170 |
extern PlyOtherProp *ply_get_other_properties(PlyFile *, char *, int);
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170 |
extern PlyOtherProp *ply_get_other_properties(PlyFile *, char *, int);
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| 171 |
extern void ply_get_element(PlyFile *, void *);
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171 |
extern void ply_get_element(PlyFile *, void *);
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| 172 |
extern char **ply_get_comments(PlyFile *, int *);
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172 |
extern char **ply_get_comments(PlyFile *, int *);
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| 173 |
extern char **ply_get_obj_info(PlyFile *, int *);
|
173 |
extern char **ply_get_obj_info(PlyFile *, int *);
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| 174 |
extern void ply_close(PlyFile *);
|
174 |
extern void ply_close(PlyFile *);
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| 175 |
extern void ply_get_info(PlyFile *, float *, int *);
|
175 |
extern void ply_get_info(PlyFile *, float *, int *);
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| 176 |
extern PlyOtherElems *ply_get_other_element (PlyFile *, char *, int);
|
176 |
extern PlyOtherElems *ply_get_other_element (PlyFile *, char *, int);
|
| 177 |
extern void ply_describe_other_properties(
|
177 |
extern void ply_describe_other_properties(
|
| 178 |
PlyFile *plyfile, PlyOtherProp *other, int offset);
|
178 |
PlyFile *plyfile, PlyOtherProp *other, int offset);
|
| 179 |
extern void ply_describe_other_elements ( PlyFile *, PlyOtherElems *);
|
179 |
extern void ply_describe_other_elements ( PlyFile *, PlyOtherElems *);
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| 180 |
extern void ply_put_other_elements (PlyFile *);
|
180 |
extern void ply_put_other_elements (PlyFile *);
|
| 181 |
extern void ply_free_other_elements (PlyOtherElems *);
|
181 |
extern void ply_free_other_elements (PlyOtherElems *);
|
| 182 |
extern void copy_property(PlyProperty *, PlyProperty *);
|
182 |
extern void copy_property(PlyProperty *, PlyProperty *);
|
| 183 |
extern int equal_strings(char *, char *);
|
183 |
extern int equal_strings(char *, char *);
|
| 184 |
extern int ply_is_valid_property(PlyFile *plyfile,
|
184 |
extern int ply_is_valid_property(PlyFile *plyfile,
|
| 185 |
char *elem_name, char *prop_name);
|
185 |
char *elem_name, char *prop_name);
|
| 186 |
extern void ply_get_element_noalloc(PlyFile *plyfile, void *elem_ptr);
|
186 |
extern void ply_get_element_noalloc(PlyFile *plyfile, void *elem_ptr);
|
| 187 |
|
187 |
|
| 188 |
|
188 |
|
| 189 |
/* Define some functions/macros to convert numbers (as character strings)
|
189 |
/* Define some functions/macros to convert numbers (as character strings)
|
| 190 |
* from BYTE_ORDER to BIG or LITTLE ENDIAN. */
|
190 |
* from BYTE_ORDER to BIG or LITTLE ENDIAN. */
|
| 191 |
|
191 |
|
| 192 |
/* Reverse order of 2 characters */
|
192 |
/* Reverse order of 2 characters */
|
| 193 |
|
193 |
|
| 194 |
#define SWAP2C(str) { char c; \
|
194 |
#define SWAP2C(str) { char c; \
|
| 195 |
c = (str)[0]; (str)[0] = (str)[1]; (str)[1] = c; }
|
195 |
c = (str)[0]; (str)[0] = (str)[1]; (str)[1] = c; }
|
| 196 |
|
196 |
|
| 197 |
/* Reverse order of 4 characters */
|
197 |
/* Reverse order of 4 characters */
|
| 198 |
#define SWAP4C(str) { char c; \
|
198 |
#define SWAP4C(str) { char c; \
|
| 199 |
c = (str)[0]; (str)[0] = (str)[3]; (str)[3] = c; \
|
199 |
c = (str)[0]; (str)[0] = (str)[3]; (str)[3] = c; \
|
| 200 |
c = (str)[1]; (str)[1] = (str)[2]; (str)[2] = c; }
|
200 |
c = (str)[1]; (str)[1] = (str)[2]; (str)[2] = c; }
|
| 201 |
|
201 |
|
| 202 |
/* Reverse order of 8 characters */
|
202 |
/* Reverse order of 8 characters */
|
| 203 |
#define SWAP8C(str) { char c; \
|
203 |
#define SWAP8C(str) { char c; \
|
| 204 |
c = (str)[0]; (str)[0] = (str)[7]; (str)[7] = c; \
|
204 |
c = (str)[0]; (str)[0] = (str)[7]; (str)[7] = c; \
|
| 205 |
c = (str)[1]; (str)[1] = (str)[6]; (str)[6] = c; \
|
205 |
c = (str)[1]; (str)[1] = (str)[6]; (str)[6] = c; \
|
| 206 |
c = (str)[2]; (str)[2] = (str)[5]; (str)[5] = c; \
|
206 |
c = (str)[2]; (str)[2] = (str)[5]; (str)[5] = c; \
|
| 207 |
c = (str)[3]; (str)[3] = (str)[4]; (str)[4] = c; }
|
207 |
c = (str)[3]; (str)[3] = (str)[4]; (str)[4] = c; }
|
| 208 |
|
208 |
|
| 209 |
/* Macros that call the SWAPn function if necessary for this BYTE_ORDER */
|
209 |
/* Macros that call the SWAPn function if necessary for this BYTE_ORDER */
|
| 210 |
#if BYTE_ORDER == BIG_ENDIAN
|
210 |
#if BYTE_ORDER == BIG_ENDIAN
|
| 211 |
#define SWAP_TO_ENDIAN2(str,end) if ((end)==PLY_BINARY_LE) SWAP2C((char*) str)
|
211 |
#define SWAP_TO_ENDIAN2(str,end) if ((end)==PLY_BINARY_LE) SWAP2C((char*) str)
|
| 212 |
#define SWAP_TO_ENDIAN4(str,end) if ((end)==PLY_BINARY_LE) SWAP4C((char*) str)
|
212 |
#define SWAP_TO_ENDIAN4(str,end) if ((end)==PLY_BINARY_LE) SWAP4C((char*) str)
|
| 213 |
#define SWAP_TO_ENDIAN8(str,end) if ((end)==PLY_BINARY_LE) SWAP8C((char*) str)
|
213 |
#define SWAP_TO_ENDIAN8(str,end) if ((end)==PLY_BINARY_LE) SWAP8C((char*) str)
|
| 214 |
#elif BYTE_ORDER == LITTLE_ENDIAN
|
214 |
#elif BYTE_ORDER == LITTLE_ENDIAN
|
| 215 |
#define SWAP_TO_ENDIAN2(str,end) if ((end)==PLY_BINARY_BE) SWAP2C((char*) str)
|
215 |
#define SWAP_TO_ENDIAN2(str,end) if ((end)==PLY_BINARY_BE) SWAP2C((char*) str)
|
| 216 |
#define SWAP_TO_ENDIAN4(str,end) if ((end)==PLY_BINARY_BE) SWAP4C((char*) str)
|
216 |
#define SWAP_TO_ENDIAN4(str,end) if ((end)==PLY_BINARY_BE) SWAP4C((char*) str)
|
| 217 |
#define SWAP_TO_ENDIAN8(str,end) if ((end)==PLY_BINARY_BE) SWAP8C((char*) str)
|
217 |
#define SWAP_TO_ENDIAN8(str,end) if ((end)==PLY_BINARY_BE) SWAP8C((char*) str)
|
| 218 |
#endif
|
218 |
#endif
|
| 219 |
|
219 |
|
| 220 |
#ifdef __cplusplus
|
220 |
#ifdef __cplusplus
|
| 221 |
}
|
221 |
}
|
| 222 |
#endif
|
222 |
#endif
|
| 223 |
#endif /* !__PLY_H__ */
|
223 |
#endif /* !__PLY_H__ */
|
| 224 |
|
224 |
|
| 225 |
|
225 |
|