[med-svn] [concavity] 02/04: Imported Upstream version 0.1+dfsg.1
Andreas Tille
tille at debian.org
Wed Jun 8 06:36:17 UTC 2016
This is an automated email from the git hooks/post-receive script.
tille pushed a commit to branch master
in repository concavity.
commit 004dc744e661a3c7de1e7a1be49cfe8a5d9f3dd3
Author: Andreas Tille <tille at debian.org>
Date: Wed Jun 8 08:29:59 2016 +0200
Imported Upstream version 0.1+dfsg.1
---
pkgs/R3Shapes/ply.C | 2637 ---------------------------------------------------
pkgs/R3Shapes/ply.h | 209 ----
2 files changed, 2846 deletions(-)
diff --git a/pkgs/R3Shapes/ply.C b/pkgs/R3Shapes/ply.C
deleted file mode 100644
index f0736be..0000000
--- a/pkgs/R3Shapes/ply.C
+++ /dev/null
@@ -1,2637 +0,0 @@
-/*
-
-The interface routines for reading and writing PLY polygon files.
-
-Greg Turk, February 1994
-
----------------------------------------------------------------
-
-A PLY file contains a single polygonal _object_.
-
-An object is composed of lists of _elements_. Typical elements are
-vertices, faces, edges and materials.
-
-Each type of element for a given object has one or more _properties_
-associated with the element type. For instance, a vertex element may
-have as properties the floating-point values x,y,z and the three unsigned
-chars representing red, green and blue.
-
----------------------------------------------------------------
-
-Copyright (c) 1994 The Board of Trustees of The Leland Stanford
-Junior University. All rights reserved.
-
-Permission to use, copy, modify and distribute this software and its
-documentation for any purpose is hereby granted without fee, provided
-that the above copyright notice and this permission notice appear in
-all copies of this software and that you do not sell the software.
-
-THE SOFTWARE IS PROVIDED "AS IS" AND WITHOUT WARRANTY OF ANY KIND,
-EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
-WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
-
-*/
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <string.h>
-#include "ply.h"
-
-char *type_names[] = {
-"invalid",
-"char", "short", "int",
-"uchar", "ushort", "uint",
-"float", "double",
-};
-
-int ply_type_size[] = {
- 0, 1, 2, 4, 1, 2, 4, 4, 8
-};
-
-typedef union
-{
- int int_value;
- char byte_values[sizeof(int)];
-} endian_test_type;
-
-
-static int native_binary_type = -1;
-static int types_checked = 0;
-
-#define NO_OTHER_PROPS -1
-
-#define DONT_STORE_PROP 0
-#define STORE_PROP 1
-
-#define OTHER_PROP 0
-#define NAMED_PROP 1
-
-
-/* returns 1 if strings are equal, 0 if not */
-int equal_strings(char *, char *);
-
-/* find an element in a plyfile's list */
-PlyElement *find_element(PlyFile *, char *);
-
-/* find a property in an element's list */
-PlyProperty *find_property(PlyElement *, char *, int *);
-
-/* write to a file the word describing a PLY file data type */
-void write_scalar_type (FILE *, int);
-
-/* read a line from a file and break it up into separate words */
-char **get_words(FILE *, int *, char **);
-char **old_get_words(FILE *, int *);
-
-/* write an item to a file */
-void write_binary_item(FILE *, int, int, unsigned int, double, int);
-void write_ascii_item(FILE *, int, unsigned int, double, int);
-double old_write_ascii_item(FILE *, char *, int);
-
-/* add information to a PLY file descriptor */
-void add_element(PlyFile *, char **);
-void add_property(PlyFile *, char **);
-void add_comment(PlyFile *, char *);
-void add_obj_info(PlyFile *, char *);
-
-/* copy a property */
-void copy_property(PlyProperty *, PlyProperty *);
-
-/* store a value into where a pointer and a type specify */
-void store_item(char *, int, int, unsigned int, double);
-
-/* return the value of a stored item */
-void get_stored_item( void *, int, int *, unsigned int *, double *);
-
-/* return the value stored in an item, given ptr to it and its type */
-double get_item_value(char *, int);
-
-/* get binary or ascii item and store it according to ptr and type */
-void get_ascii_item(char *, int, int *, unsigned int *, double *);
-void get_binary_item(FILE *, int, int, int *, unsigned int *, double *);
-
-/* get a bunch of elements from a file */
-void ascii_get_element(PlyFile *, char *);
-void binary_get_element(PlyFile *, char *);
-
-/* memory allocation */
-char *my_alloc(int, int, char *);
-
-/* byte ordering */
-void get_native_binary_type();
-void swap_bytes(char *, int);
-
-void check_types();
-
-/*************/
-/* Writing */
-/*************/
-
-
-/******************************************************************************
-Given a file pointer, get ready to write PLY data to the file.
-
-Entry:
- fp - the given file pointer
- nelems - number of elements in object
- elem_names - list of element names
- file_type - file type, either ascii or binary
-
-Exit:
- returns a pointer to a PlyFile, used to refer to this file, or NULL if error
-******************************************************************************/
-
-PlyFile *ply_write(
- FILE *fp,
- int nelems,
- char **elem_names,
- int file_type
-)
-{
- int i;
- PlyFile *plyfile;
- PlyElement *elem;
-
- /* check for NULL file pointer */
- if (fp == NULL)
- return (NULL);
-
- if (native_binary_type == -1)
- get_native_binary_type();
- if (!types_checked)
- check_types();
-
- /* create a record for this object */
-
- plyfile = (PlyFile *) myalloc (sizeof (PlyFile));
- if (file_type == PLY_BINARY_NATIVE)
- plyfile->file_type = native_binary_type;
- else
- plyfile->file_type = file_type;
- plyfile->num_comments = 0;
- plyfile->num_obj_info = 0;
- plyfile->nelems = nelems;
- plyfile->version = 1.0;
- plyfile->fp = fp;
- plyfile->other_elems = NULL;
-
- /* tuck aside the names of the elements */
-
- plyfile->elems = (PlyElement **) myalloc (sizeof (PlyElement *) * nelems);
- for (i = 0; i < nelems; i++) {
- elem = (PlyElement *) myalloc (sizeof (PlyElement));
- plyfile->elems[i] = elem;
- elem->name = strdup (elem_names[i]);
- elem->num = 0;
- elem->nprops = 0;
- }
-
- /* return pointer to the file descriptor */
- return (plyfile);
-}
-
-
-/******************************************************************************
-Open a polygon file for writing.
-
-Entry:
- filename - name of file to read from
- nelems - number of elements in object
- elem_names - list of element names
- file_type - file type, either ascii or binary
-
-Exit:
- version - version number of PLY file
- returns a file identifier, used to refer to this file, or NULL if error
-******************************************************************************/
-
-PlyFile *ply_open_for_writing(
- char *filename,
- int nelems,
- char **elem_names,
- int file_type,
- float *version
-)
-{
- PlyFile *plyfile;
- char *name;
- FILE *fp;
-
- /* tack on the extension .ply, if necessary */
-
- name = (char *) myalloc (sizeof (char) * (strlen (filename) + 5));
- strcpy (name, filename);
- if (strlen (name) < 4 ||
- strcmp (name + strlen (name) - 4, ".ply") != 0)
- strcat (name, ".ply");
-
- /* open the file for writing */
-
- fp = fopen (name, "w");
- if (fp == NULL) {
- return (NULL);
- }
-
- /* create the actual PlyFile structure */
-
- plyfile = ply_write (fp, nelems, elem_names, file_type);
- if (plyfile == NULL)
- return (NULL);
-
- /* say what PLY file version number we're writing */
- *version = plyfile->version;
-
- /* return pointer to the file descriptor */
- return (plyfile);
-}
-
-
-/******************************************************************************
-Describe an element, including its properties and how many will be written
-to the file.
-
-Entry:
- plyfile - file identifier
- elem_name - name of element that information is being specified about
- nelems - number of elements of this type to be written
- nprops - number of properties contained in the element
- prop_list - list of properties
-******************************************************************************/
-
-void ply_describe_element(
- PlyFile *plyfile,
- char *elem_name,
- int nelems,
- int nprops,
- PlyProperty *prop_list
-)
-{
- int i;
- PlyElement *elem;
- PlyProperty *prop;
-
- /* look for appropriate element */
- elem = find_element (plyfile, elem_name);
- if (elem == NULL) {
- fprintf(stderr,"ply_describe_element: can't find element '%s'\n",elem_name);
- exit (-1);
- }
-
- elem->num = nelems;
-
- /* copy the list of properties */
-
- elem->nprops = nprops;
- elem->props = (PlyProperty **) myalloc (sizeof (PlyProperty *) * nprops);
- elem->store_prop = (char *) myalloc (sizeof (char) * nprops);
-
- for (i = 0; i < nprops; i++) {
- prop = (PlyProperty *) myalloc (sizeof (PlyProperty));
- elem->props[i] = prop;
- elem->store_prop[i] = NAMED_PROP;
- copy_property (prop, &prop_list[i]);
- }
-}
-
-
-/******************************************************************************
-Describe a property of an element.
-
-Entry:
- plyfile - file identifier
- elem_name - name of element that information is being specified about
- prop - the new property
-******************************************************************************/
-
-void ply_describe_property(
- PlyFile *plyfile,
- char *elem_name,
- PlyProperty *prop
-)
-{
- PlyElement *elem;
- PlyProperty *elem_prop;
-
- /* look for appropriate element */
- elem = find_element (plyfile, elem_name);
- if (elem == NULL) {
- fprintf(stderr, "ply_describe_property: can't find element '%s'\n",
- elem_name);
- return;
- }
-
- /* create room for new property */
-
- if (elem->nprops == 0) {
- elem->props = (PlyProperty **) myalloc (sizeof (PlyProperty *));
- elem->store_prop = (char *) myalloc (sizeof (char));
- elem->nprops = 1;
- }
- else {
- elem->nprops++;
- elem->props = (PlyProperty **)
- realloc (elem->props, sizeof (PlyProperty *) * elem->nprops);
- elem->store_prop = (char *)
- realloc (elem->store_prop, sizeof (char) * elem->nprops);
- }
-
- /* copy the new property */
-
- elem_prop = (PlyProperty *) myalloc (sizeof (PlyProperty));
- elem->props[elem->nprops - 1] = elem_prop;
- elem->store_prop[elem->nprops - 1] = NAMED_PROP;
- copy_property (elem_prop, prop);
-}
-
-
-/******************************************************************************
-Describe what the "other" properties are that are to be stored, and where
-they are in an element.
-******************************************************************************/
-
-void ply_describe_other_properties(
- PlyFile *plyfile,
- PlyOtherProp *other,
- int offset
-)
-{
- int i;
- PlyElement *elem;
- PlyProperty *prop;
-
- /* look for appropriate element */
- elem = find_element (plyfile, other->name);
- if (elem == NULL) {
- fprintf(stderr, "ply_describe_other_properties: can't find element '%s'\n",
- other->name);
- return;
- }
-
- /* create room for other properties */
-
- if (elem->nprops == 0) {
- elem->props = (PlyProperty **)
- myalloc (sizeof (PlyProperty *) * other->nprops);
- elem->store_prop = (char *) myalloc (sizeof (char) * other->nprops);
- elem->nprops = 0;
- }
- else {
- int newsize;
- newsize = elem->nprops + other->nprops;
- elem->props = (PlyProperty **)
- realloc (elem->props, sizeof (PlyProperty *) * newsize);
- elem->store_prop = (char *)
- realloc (elem->store_prop, sizeof (char) * newsize);
- }
-
- /* copy the other properties */
-
- for (i = 0; i < other->nprops; i++) {
- prop = (PlyProperty *) myalloc (sizeof (PlyProperty));
- copy_property (prop, other->props[i]);
- elem->props[elem->nprops] = prop;
- elem->store_prop[elem->nprops] = OTHER_PROP;
- elem->nprops++;
- }
-
- /* save other info about other properties */
- elem->other_size = other->size;
- elem->other_offset = offset;
-}
-
-
-/******************************************************************************
-State how many of a given element will be written.
-
-Entry:
- plyfile - file identifier
- elem_name - name of element that information is being specified about
- nelems - number of elements of this type to be written
-******************************************************************************/
-
-void ply_element_count(
- PlyFile *plyfile,
- char *elem_name,
- int nelems
-)
-{
- PlyElement *elem;
-
- /* look for appropriate element */
- elem = find_element (plyfile, elem_name);
- if (elem == NULL) {
- fprintf(stderr,"ply_element_count: can't find element '%s'\n",elem_name);
- exit (-1);
- }
-
- elem->num = nelems;
-}
-
-
-/******************************************************************************
-Signal that we've described everything a PLY file's header and that the
-header should be written to the file.
-
-Entry:
- plyfile - file identifier
-******************************************************************************/
-
-void ply_header_complete(PlyFile *plyfile)
-{
- int i,j;
- FILE *fp = plyfile->fp;
- PlyElement *elem;
- PlyProperty *prop;
-
- fprintf (fp, "ply\n");
-
- switch (plyfile->file_type) {
- case PLY_ASCII:
- fprintf (fp, "format ascii 1.0\n");
- break;
- case PLY_BINARY_BE:
- fprintf (fp, "format binary_big_endian 1.0\n");
- break;
- case PLY_BINARY_LE:
- fprintf (fp, "format binary_little_endian 1.0\n");
- break;
- default:
- fprintf (stderr, "ply_header_complete: bad file type = %d\n",
- plyfile->file_type);
- exit (-1);
- }
-
- /* write out the comments */
-
- for (i = 0; i < plyfile->num_comments; i++)
- fprintf (fp, "comment %s\n", plyfile->comments[i]);
-
- /* write out object information */
-
- for (i = 0; i < plyfile->num_obj_info; i++)
- fprintf (fp, "obj_info %s\n", plyfile->obj_info[i]);
-
- /* write out information about each element */
-
- for (i = 0; i < plyfile->nelems; i++) {
-
- elem = plyfile->elems[i];
- fprintf (fp, "element %s %d\n", elem->name, elem->num);
-
- /* write out each property */
- for (j = 0; j < elem->nprops; j++) {
- prop = elem->props[j];
- if (prop->is_list) {
- fprintf (fp, "property list ");
- write_scalar_type (fp, prop->count_external);
- fprintf (fp, " ");
- write_scalar_type (fp, prop->external_type);
- fprintf (fp, " %s\n", prop->name);
- }
- else {
- fprintf (fp, "property ");
- write_scalar_type (fp, prop->external_type);
- fprintf (fp, " %s\n", prop->name);
- }
- }
- }
-
- fprintf (fp, "end_header\n");
-}
-
-
-/******************************************************************************
-Specify which elements are going to be written. This should be called
-before a call to the routine ply_put_element().
-
-Entry:
- plyfile - file identifier
- elem_name - name of element we're talking about
-******************************************************************************/
-
-void ply_put_element_setup(PlyFile *plyfile, char *elem_name)
-{
- PlyElement *elem;
-
- elem = find_element (plyfile, elem_name);
- if (elem == NULL) {
- fprintf(stderr, "ply_elements_setup: can't find element '%s'\n", elem_name);
- exit (-1);
- }
-
- plyfile->which_elem = elem;
-}
-
-
-/******************************************************************************
-Write an element to the file. This routine assumes that we're
-writing the type of element specified in the last call to the routine
-ply_put_element_setup().
-
-Entry:
- plyfile - file identifier
- elem_ptr - pointer to the element
-******************************************************************************/
-
-void ply_put_element(PlyFile *plyfile, void *elem_ptr)
-{
- int j,k;
- FILE *fp = plyfile->fp;
- PlyElement *elem;
- PlyProperty *prop;
- char *elem_data,*item;
- char **item_ptr;
- int list_count;
- int item_size;
- int int_val;
- unsigned int uint_val;
- double double_val;
- char **other_ptr;
-
- elem = plyfile->which_elem;
- elem_data = (char *)elem_ptr;
- other_ptr = (char **) (((char *) elem_ptr) + elem->other_offset);
-
- /* write out either to an ascii or binary file */
-
- if (plyfile->file_type == PLY_ASCII) {
-
- /* write an ascii file */
-
- /* write out each property of the element */
- for (j = 0; j < elem->nprops; j++) {
- prop = elem->props[j];
- if (elem->store_prop[j] == OTHER_PROP)
- elem_data = *other_ptr;
- else
- elem_data = (char *)elem_ptr;
- if (prop->is_list) {
- item = elem_data + prop->count_offset;
- get_stored_item ((void *) item, prop->count_internal,
- &int_val, &uint_val, &double_val);
- write_ascii_item (fp, int_val, uint_val, double_val,
- prop->count_external);
- list_count = uint_val;
- item_ptr = (char **) (elem_data + prop->offset);
- item = item_ptr[0];
- item_size = ply_type_size[prop->internal_type];
- for (k = 0; k < list_count; k++) {
- get_stored_item ((void *) item, prop->internal_type,
- &int_val, &uint_val, &double_val);
- write_ascii_item (fp, int_val, uint_val, double_val,
- prop->external_type);
- item += item_size;
- }
- }
- else {
- item = elem_data + prop->offset;
- get_stored_item ((void *) item, prop->internal_type,
- &int_val, &uint_val, &double_val);
- write_ascii_item (fp, int_val, uint_val, double_val,
- prop->external_type);
- }
- }
-
- fprintf (fp, "\n");
- }
- else {
-
- /* write a binary file */
-
- /* write out each property of the element */
- for (j = 0; j < elem->nprops; j++) {
- prop = elem->props[j];
- if (elem->store_prop[j] == OTHER_PROP)
- elem_data = *other_ptr;
- else
- elem_data = (char *)elem_ptr;
- if (prop->is_list) {
- item = elem_data + prop->count_offset;
- item_size = ply_type_size[prop->count_internal];
- get_stored_item ((void *) item, prop->count_internal,
- &int_val, &uint_val, &double_val);
- write_binary_item (fp, plyfile->file_type, int_val, uint_val,
- double_val, prop->count_external);
- list_count = uint_val;
- item_ptr = (char **) (elem_data + prop->offset);
- item = item_ptr[0];
- item_size = ply_type_size[prop->internal_type];
- for (k = 0; k < list_count; k++) {
- get_stored_item ((void *) item, prop->internal_type,
- &int_val, &uint_val, &double_val);
- write_binary_item (fp, plyfile->file_type, int_val, uint_val,
- double_val, prop->external_type);
- item += item_size;
- }
- }
- else {
- item = elem_data + prop->offset;
- item_size = ply_type_size[prop->internal_type];
- get_stored_item ((void *) item, prop->internal_type,
- &int_val, &uint_val, &double_val);
- write_binary_item (fp, plyfile->file_type, int_val, uint_val,
- double_val, prop->external_type);
- }
- }
-
- }
-}
-
-
-/******************************************************************************
-Specify a comment that will be written in the header.
-
-Entry:
- plyfile - file identifier
- comment - the comment to be written
-******************************************************************************/
-
-void ply_put_comment(PlyFile *plyfile, char *comment)
-{
- /* (re)allocate space for new comment */
- if (plyfile->num_comments == 0)
- plyfile->comments = (char **) myalloc (sizeof (char *));
- else
- plyfile->comments = (char **) realloc (plyfile->comments,
- sizeof (char *) * (plyfile->num_comments + 1));
-
- /* add comment to list */
- plyfile->comments[plyfile->num_comments] = strdup (comment);
- plyfile->num_comments++;
-}
-
-
-/******************************************************************************
-Specify a piece of object information (arbitrary text) that will be written
-in the header.
-
-Entry:
- plyfile - file identifier
- obj_info - the text information to be written
-******************************************************************************/
-
-void ply_put_obj_info(PlyFile *plyfile, char *obj_info)
-{
- /* (re)allocate space for new info */
- if (plyfile->num_obj_info == 0)
- plyfile->obj_info = (char **) myalloc (sizeof (char *));
- else
- plyfile->obj_info = (char **) realloc (plyfile->obj_info,
- sizeof (char *) * (plyfile->num_obj_info + 1));
-
- /* add info to list */
- plyfile->obj_info[plyfile->num_obj_info] = strdup (obj_info);
- plyfile->num_obj_info++;
-}
-
-
-
-
-
-
-
-/*************/
-/* Reading */
-/*************/
-
-
-
-/******************************************************************************
-Given a file pointer, get ready to read PLY data from the file.
-
-Entry:
- fp - the given file pointer
-
-Exit:
- nelems - number of elements in object
- elem_names - list of element names
- returns a pointer to a PlyFile, used to refer to this file, or NULL if error
-******************************************************************************/
-
-PlyFile *ply_read(FILE *fp, int *nelems, char ***elem_names)
-{
- int i,j;
- PlyFile *plyfile;
- int nwords;
- char **words;
- char **elist;
- PlyElement *elem;
- char *orig_line;
-
- /* check for NULL file pointer */
- if (fp == NULL)
- return (NULL);
-
- if (native_binary_type == -1)
- get_native_binary_type();
- if (!types_checked)
- check_types();
-
- /* create record for this object */
-
- plyfile = (PlyFile *) myalloc (sizeof (PlyFile));
- plyfile->nelems = 0;
- plyfile->comments = NULL;
- plyfile->num_comments = 0;
- plyfile->obj_info = NULL;
- plyfile->num_obj_info = 0;
- plyfile->fp = fp;
- plyfile->other_elems = NULL;
-
- /* read and parse the file's header */
-
- words = get_words (plyfile->fp, &nwords, &orig_line);
- if (!words || !equal_strings (words[0], "ply"))
- {
- if (words)
- free(words);
- return (NULL);
- }
-
- while (words) {
-
- /* parse words */
-
- if (equal_strings (words[0], "format")) {
- if (nwords != 3) {
- free(words);
- return (NULL);
- }
- if (equal_strings (words[1], "ascii"))
- plyfile->file_type = PLY_ASCII;
- else if (equal_strings (words[1], "binary_big_endian"))
- plyfile->file_type = PLY_BINARY_BE;
- else if (equal_strings (words[1], "binary_little_endian"))
- plyfile->file_type = PLY_BINARY_LE;
- else {
- free(words);
- return (NULL);
- }
- plyfile->version = atof (words[2]);
- }
- else if (equal_strings (words[0], "element"))
- add_element (plyfile, words);
- else if (equal_strings (words[0], "property"))
- add_property (plyfile, words);
- else if (equal_strings (words[0], "comment"))
- add_comment (plyfile, orig_line);
- else if (equal_strings (words[0], "obj_info"))
- add_obj_info (plyfile, orig_line);
- else if (equal_strings (words[0], "end_header")) {
- free(words);
- break;
- }
-
- /* free up words space */
- free (words);
-
- words = get_words (plyfile->fp, &nwords, &orig_line);
- }
-
- /* create tags for each property of each element, to be used */
- /* later to say whether or not to store each property for the user */
-
- for (i = 0; i < plyfile->nelems; i++) {
- elem = plyfile->elems[i];
- elem->store_prop = (char *) myalloc (sizeof (char) * elem->nprops);
- for (j = 0; j < elem->nprops; j++)
- elem->store_prop[j] = DONT_STORE_PROP;
- elem->other_offset = NO_OTHER_PROPS; /* no "other" props by default */
- }
-
- /* set return values about the elements */
-
- elist = (char **) myalloc (sizeof (char *) * plyfile->nelems);
- for (i = 0; i < plyfile->nelems; i++)
- elist[i] = strdup (plyfile->elems[i]->name);
-
- *elem_names = elist;
- *nelems = plyfile->nelems;
-
- /* return a pointer to the file's information */
-
- return (plyfile);
-}
-
-
-/******************************************************************************
-Open a polygon file for reading.
-
-Entry:
- filename - name of file to read from
-
-Exit:
- nelems - number of elements in object
- elem_names - list of element names
- file_type - file type, either ascii or binary
- version - version number of PLY file
- returns a file identifier, used to refer to this file, or NULL if error
-******************************************************************************/
-
-PlyFile *ply_open_for_reading(
- char *filename,
- int *nelems,
- char ***elem_names,
- int *file_type,
- float *version
-)
-{
- FILE *fp;
- PlyFile *plyfile;
- char *name;
-
- /* tack on the extension .ply, if necessary */
-
- name = (char *) myalloc (sizeof (char) * (strlen (filename) + 5));
- strcpy (name, filename);
- if (strlen (name) < 4 ||
- strcmp (name + strlen (name) - 4, ".ply") != 0)
- strcat (name, ".ply");
-
- /* open the file for reading */
-
- fp = fopen (name, "r");
- if (fp == NULL)
- return (NULL);
-
- /* create the PlyFile data structure */
-
- plyfile = ply_read (fp, nelems, elem_names);
-
- /* determine the file type and version */
-
- *file_type = plyfile->file_type;
- *version = plyfile->version;
-
- /* return a pointer to the file's information */
-
- return (plyfile);
-}
-
-
-/******************************************************************************
-Get information about a particular element.
-
-Entry:
- plyfile - file identifier
- elem_name - name of element to get information about
-
-Exit:
- nelems - number of elements of this type in the file
- nprops - number of properties
- returns a list of properties, or NULL if the file doesn't contain that elem
-******************************************************************************/
-
-PlyProperty **ply_get_element_description(
- PlyFile *plyfile,
- char *elem_name,
- int *nelems,
- int *nprops
-)
-{
- int i;
- PlyElement *elem;
- PlyProperty *prop;
- PlyProperty **prop_list;
-
- /* find information about the element */
- elem = find_element (plyfile, elem_name);
- if (elem == NULL)
- return (NULL);
-
- *nelems = elem->num;
- *nprops = elem->nprops;
-
- /* make a copy of the element's property list */
- prop_list = (PlyProperty **) myalloc (sizeof (PlyProperty *) * elem->nprops);
- for (i = 0; i < elem->nprops; i++) {
- prop = (PlyProperty *) myalloc (sizeof (PlyProperty));
- copy_property (prop, elem->props[i]);
- prop_list[i] = prop;
- }
-
- /* return this duplicate property list */
- return (prop_list);
-}
-
-
-/******************************************************************************
-Specify which properties of an element are to be returned. This should be
-called before a call to the routine ply_get_element().
-
-Entry:
- plyfile - file identifier
- elem_name - which element we're talking about
- nprops - number of properties
- prop_list - list of properties
-******************************************************************************/
-
-void ply_get_element_setup(
- PlyFile *plyfile,
- char *elem_name,
- int nprops,
- PlyProperty *prop_list
-)
-{
- int i;
- PlyElement *elem;
- PlyProperty *prop;
- int index;
-
- /* find information about the element */
- elem = find_element (plyfile, elem_name);
- plyfile->which_elem = elem;
-
- /* deposit the property information into the element's description */
- for (i = 0; i < nprops; i++) {
-
- /* look for actual property */
- prop = find_property (elem, prop_list[i].name, &index);
- if (prop == NULL) {
- fprintf (stderr, "Warning: Can't find property '%s' in element '%s'\n",
- prop_list[i].name, elem_name);
- continue;
- }
-
- /* store its description */
- prop->internal_type = prop_list[i].internal_type;
- prop->offset = prop_list[i].offset;
- prop->count_internal = prop_list[i].count_internal;
- prop->count_offset = prop_list[i].count_offset;
-
- /* specify that the user wants this property */
- elem->store_prop[index] = STORE_PROP;
- }
-}
-
-
-/******************************************************************************
-Specify a property of an element that is to be returned. This should be
-called (usually multiple times) before a call to the routine ply_get_element().
-This routine should be used in preference to the less flexible old routine
-called ply_get_element_setup().
-
-Entry:
- plyfile - file identifier
- elem_name - which element we're talking about
- prop - property to add to those that will be returned
-******************************************************************************/
-
-void ply_get_property(
- PlyFile *plyfile,
- char *elem_name,
- PlyProperty *prop
-)
-{
- PlyElement *elem;
- PlyProperty *prop_ptr;
- int index;
-
- /* find information about the element */
- elem = find_element (plyfile, elem_name);
- plyfile->which_elem = elem;
-
- /* deposit the property information into the element's description */
-
- prop_ptr = find_property (elem, prop->name, &index);
- if (prop_ptr == NULL) {
- fprintf (stderr, "Warning: Can't find property '%s' in element '%s'\n",
- prop->name, elem_name);
- return;
- }
- prop_ptr->internal_type = prop->internal_type;
- prop_ptr->offset = prop->offset;
- prop_ptr->count_internal = prop->count_internal;
- prop_ptr->count_offset = prop->count_offset;
-
- /* specify that the user wants this property */
- elem->store_prop[index] = STORE_PROP;
-}
-
-
-/******************************************************************************
-Read one element from the file. This routine assumes that we're reading
-the type of element specified in the last call to the routine
-ply_get_element_setup().
-
-Entry:
- plyfile - file identifier
- elem_ptr - pointer to location where the element information should be put
-******************************************************************************/
-
-void ply_get_element(PlyFile *plyfile, void *elem_ptr)
-{
- if (plyfile->file_type == PLY_ASCII)
- ascii_get_element (plyfile, (char *) elem_ptr);
- else
- binary_get_element (plyfile, (char *) elem_ptr);
-}
-
-
-/******************************************************************************
-Extract the comments from the header information of a PLY file.
-
-Entry:
- plyfile - file identifier
-
-Exit:
- num_comments - number of comments returned
- returns a pointer to a list of comments
-******************************************************************************/
-
-char **ply_get_comments(PlyFile *plyfile, int *num_comments)
-{
- *num_comments = plyfile->num_comments;
- return (plyfile->comments);
-}
-
-
-/******************************************************************************
-Extract the object information (arbitrary text) from the header information
-of a PLY file.
-
-Entry:
- plyfile - file identifier
-
-Exit:
- num_obj_info - number of lines of text information returned
- returns a pointer to a list of object info lines
-******************************************************************************/
-
-char **ply_get_obj_info(PlyFile *plyfile, int *num_obj_info)
-{
- *num_obj_info = plyfile->num_obj_info;
- return (plyfile->obj_info);
-}
-
-
-/******************************************************************************
-Make ready for "other" properties of an element-- those properties that
-the user has not explicitly asked for, but that are to be stashed away
-in a special structure to be carried along with the element's other
-information.
-
-Entry:
- plyfile - file identifier
- elem - element for which we want to save away other properties
-******************************************************************************/
-
-void setup_other_props(PlyElement *elem)
-{
- int i;
- PlyProperty *prop;
- int size = 0;
- int type_size;
-
- /* Examine each property in decreasing order of size. */
- /* We do this so that all data types will be aligned by */
- /* word, half-word, or whatever within the structure. */
-
- for (type_size = 8; type_size > 0; type_size /= 2) {
-
- /* add up the space taken by each property, and save this information */
- /* away in the property descriptor */
-
- for (i = 0; i < elem->nprops; i++) {
-
- /* don't bother with properties we've been asked to store explicitly */
- if (elem->store_prop[i])
- continue;
-
- prop = elem->props[i];
-
- /* internal types will be same as external */
- prop->internal_type = prop->external_type;
- prop->count_internal = prop->count_external;
-
- /* check list case */
- if (prop->is_list) {
-
- /* pointer to list */
- if (type_size == sizeof (void *)) {
- prop->offset = size;
- size += sizeof (void *); /* always use size of a pointer here */
- }
-
- /* count of number of list elements */
- if (type_size == ply_type_size[prop->count_external]) {
- prop->count_offset = size;
- size += ply_type_size[prop->count_external];
- }
- }
- /* not list */
- else if (type_size == ply_type_size[prop->external_type]) {
- prop->offset = size;
- size += ply_type_size[prop->external_type];
- }
- }
-
- }
-
- /* save the size for the other_props structure */
- elem->other_size = size;
-}
-
-
-/******************************************************************************
-Specify that we want the "other" properties of an element to be tucked
-away within the user's structure. The user needn't be concerned for how
-these properties are stored.
-
-Entry:
- plyfile - file identifier
- elem_name - name of element that we want to store other_props in
- offset - offset to where other_props will be stored inside user's structure
-
-Exit:
- returns pointer to structure containing description of other_props
-******************************************************************************/
-
-PlyOtherProp *ply_get_other_properties(
- PlyFile *plyfile,
- char *elem_name,
- int offset
-)
-{
- int i;
- PlyElement *elem;
- PlyOtherProp *other;
- PlyProperty *prop;
- int nprops;
-
- /* find information about the element */
- elem = find_element (plyfile, elem_name);
- if (elem == NULL) {
- fprintf (stderr, "ply_get_other_properties: Can't find element '%s'\n",
- elem_name);
- return (NULL);
- }
-
- /* remember that this is the "current" element */
- plyfile->which_elem = elem;
-
- /* save the offset to where to store the other_props */
- elem->other_offset = offset;
-
- /* place the appropriate pointers, etc. in the element's property list */
- setup_other_props (elem);
-
- /* create structure for describing other_props */
- other = (PlyOtherProp *) myalloc (sizeof (PlyOtherProp));
- other->name = strdup (elem_name);
-#if 0
- if (elem->other_offset == NO_OTHER_PROPS) {
- other->size = 0;
- other->props = NULL;
- other->nprops = 0;
- return (other);
- }
-#endif
- other->size = elem->other_size;
- other->props = (PlyProperty **) myalloc (sizeof(PlyProperty) * elem->nprops);
-
- /* save descriptions of each "other" property */
- nprops = 0;
- for (i = 0; i < elem->nprops; i++) {
- if (elem->store_prop[i])
- continue;
- prop = (PlyProperty *) myalloc (sizeof (PlyProperty));
- copy_property (prop, elem->props[i]);
- other->props[nprops] = prop;
- nprops++;
- }
- other->nprops = nprops;
-
-#if 1
- /* set other_offset pointer appropriately if there are NO other properties */
- if (other->nprops == 0) {
- elem->other_offset = NO_OTHER_PROPS;
- }
-#endif
-
- /* return structure */
- return (other);
-}
-
-
-
-
-/*************************/
-/* Other Element Stuff */
-/*************************/
-
-
-
-
-/******************************************************************************
-Grab all the data for an element that a user does not want to explicitly
-read in.
-
-Entry:
- plyfile - pointer to file
- elem_name - name of element whose data is to be read in
- elem_count - number of instances of this element stored in the file
-
-Exit:
- returns pointer to ALL the "other" element data for this PLY file
-******************************************************************************/
-
-PlyOtherElems *ply_get_other_element (
- PlyFile *plyfile,
- char *elem_name,
- int elem_count
-)
-{
- int i;
- PlyElement *elem;
- PlyOtherElems *other_elems;
- OtherElem *other;
-
- /* look for appropriate element */
- elem = find_element (plyfile, elem_name);
- if (elem == NULL) {
- fprintf (stderr,
- "ply_get_other_element: can't find element '%s'\n", elem_name);
- exit (-1);
- }
-
- /* create room for the new "other" element, initializing the */
- /* other data structure if necessary */
-
- if (plyfile->other_elems == NULL) {
- plyfile->other_elems = (PlyOtherElems *) myalloc (sizeof (PlyOtherElems));
- other_elems = plyfile->other_elems;
- other_elems->other_list = (OtherElem *) myalloc (sizeof (OtherElem));
- other = &(other_elems->other_list[0]);
- other_elems->num_elems = 1;
- }
- else {
- other_elems = plyfile->other_elems;
- other_elems->other_list = (OtherElem *) realloc (other_elems->other_list,
- sizeof (OtherElem) * other_elems->num_elems + 1);
- other = &(other_elems->other_list[other_elems->num_elems]);
- other_elems->num_elems++;
- }
-
- /* count of element instances in file */
- other->elem_count = elem_count;
-
- /* save name of element */
- other->elem_name = strdup (elem_name);
-
- /* create a list to hold all the current elements */
- other->other_data = (OtherData **)
- malloc (sizeof (OtherData *) * other->elem_count);
-
- /* set up for getting elements */
- other->other_props = ply_get_other_properties (plyfile, elem_name,
- offsetof(OtherData,other_props));
-
- /* grab all these elements */
- for (i = 0; i < other->elem_count; i++) {
- /* grab and element from the file */
- other->other_data[i] = (OtherData *) malloc (sizeof (OtherData));
- ply_get_element (plyfile, (void *) other->other_data[i]);
- }
-
- /* return pointer to the other elements data */
- return (other_elems);
-}
-
-
-/******************************************************************************
-Pass along a pointer to "other" elements that we want to save in a given
-PLY file. These other elements were presumably read from another PLY file.
-
-Entry:
- plyfile - file pointer in which to store this other element info
- other_elems - info about other elements that we want to store
-******************************************************************************/
-
-void ply_describe_other_elements (
- PlyFile *plyfile,
- PlyOtherElems *other_elems
-)
-{
- int i;
- OtherElem *other;
- PlyElement *elem;
-
- /* ignore this call if there is no other element */
- if (other_elems == NULL)
- return;
-
- /* save pointer to this information */
- plyfile->other_elems = other_elems;
-
- /* describe the other properties of this element */
- /* store them in the main element list as elements with
- only other properties */
-
- REALLOCN(plyfile->elems, PlyElement *,
- plyfile->nelems, plyfile->nelems + other_elems->num_elems);
- for (i = 0; i < other_elems->num_elems; i++) {
- other = &(other_elems->other_list[i]);
- elem = (PlyElement *) myalloc (sizeof (PlyElement));
- plyfile->elems[plyfile->nelems++] = elem;
- elem->name = strdup (other->elem_name);
- elem->num = other->elem_count;
- elem->nprops = 0;
- ply_describe_other_properties (plyfile, other->other_props,
- offsetof(OtherData,other_props));
- }
-}
-
-
-/******************************************************************************
-Write out the "other" elements specified for this PLY file.
-
-Entry:
- plyfile - pointer to PLY file to write out other elements for
-******************************************************************************/
-
-void ply_put_other_elements (PlyFile *plyfile)
-{
- int i,j;
- OtherElem *other;
-
- /* make sure we have other elements to write */
- if (plyfile->other_elems == NULL)
- return;
-
- /* write out the data for each "other" element */
-
- for (i = 0; i < plyfile->other_elems->num_elems; i++) {
-
- other = &(plyfile->other_elems->other_list[i]);
- ply_put_element_setup (plyfile, other->elem_name);
-
- /* write out each instance of the current element */
- for (j = 0; j < other->elem_count; j++)
- ply_put_element (plyfile, (void *) other->other_data[j]);
- }
-}
-
-
-/******************************************************************************
-Free up storage used by an "other" elements data structure.
-
-Entry:
- other_elems - data structure to free up
-******************************************************************************/
-
-void ply_free_other_elements (PlyOtherElems *other_elems)
-{
- other_elems = other_elems;
-}
-
-
-
-/*******************/
-/* Miscellaneous */
-/*******************/
-
-
-
-/******************************************************************************
-Close a PLY file.
-
-Entry:
- plyfile - identifier of file to close
-******************************************************************************/
-
-void ply_close(PlyFile *plyfile)
-{
- fclose (plyfile->fp);
-
- /* free up memory associated with the PLY file */
- free (plyfile);
-}
-
-
-/******************************************************************************
-Get version number and file type of a PlyFile.
-
-Entry:
- ply - pointer to PLY file
-
-Exit:
- version - version of the file
- file_type - PLY_ASCII, PLY_BINARY_BE, or PLY_BINARY_LE
-******************************************************************************/
-
-void ply_get_info(PlyFile *ply, float *version, int *file_type)
-{
- if (ply == NULL)
- return;
-
- *version = ply->version;
- *file_type = ply->file_type;
-}
-
-
-/******************************************************************************
-Compare two strings. Returns 1 if they are the same, 0 if not.
-******************************************************************************/
-
-int equal_strings(char *s1, char *s2)
-{
-
- while (*s1 && *s2)
- if (*s1++ != *s2++)
- return (0);
-
- if (*s1 != *s2)
- return (0);
- else
- return (1);
-}
-
-
-/******************************************************************************
-Find an element from the element list of a given PLY object.
-
-Entry:
- plyfile - file id for PLY file
- element - name of element we're looking for
-
-Exit:
- returns the element, or NULL if not found
-******************************************************************************/
-
-PlyElement *find_element(PlyFile *plyfile, char *element)
-{
- int i;
-
- for (i = 0; i < plyfile->nelems; i++)
- if (equal_strings (element, plyfile->elems[i]->name))
- return (plyfile->elems[i]);
-
- return (NULL);
-}
-
-
-/******************************************************************************
-Find a property in the list of properties of a given element.
-
-Entry:
- elem - pointer to element in which we want to find the property
- prop_name - name of property to find
-
-Exit:
- index - index to position in list
- returns a pointer to the property, or NULL if not found
-******************************************************************************/
-
-PlyProperty *find_property(PlyElement *elem, char *prop_name, int *index)
-{
- int i;
-
- for (i = 0; i < elem->nprops; i++)
- if (equal_strings (prop_name, elem->props[i]->name)) {
- *index = i;
- return (elem->props[i]);
- }
-
- *index = -1;
- return (NULL);
-}
-
-
-/******************************************************************************
-Read an element from an ascii file.
-
-Entry:
- plyfile - file identifier
- elem_ptr - pointer to element
-******************************************************************************/
-
-void ascii_get_element(PlyFile *plyfile, char *elem_ptr)
-{
- int j,k;
- PlyElement *elem;
- PlyProperty *prop;
- char **words;
- int nwords;
- int which_word;
- char *elem_data,*item=NULL;
- char *item_ptr;
- int item_size;
- int int_val;
- unsigned int uint_val;
- double double_val;
- int list_count;
- int store_it;
- char **store_array;
- char *orig_line;
- char *other_data=NULL;
- int other_flag;
-
- /* the kind of element we're reading currently */
- elem = plyfile->which_elem;
-
- /* do we need to setup for other_props? */
-
- if (elem->other_offset != NO_OTHER_PROPS) {
- char **ptr;
- other_flag = 1;
- /* make room for other_props */
- other_data = (char *) myalloc (elem->other_size);
- /* store pointer in user's structure to the other_props */
- ptr = (char **) (elem_ptr + elem->other_offset);
- *ptr = other_data;
- }
- else
- other_flag = 0;
-
- /* read in the element */
-
- words = get_words (plyfile->fp, &nwords, &orig_line);
- if (words == NULL) {
- fprintf (stderr, "ply_get_element: unexpected end of file\n");
- exit (-1);
- }
-
- which_word = 0;
-
- for (j = 0; j < elem->nprops; j++) {
-
- prop = elem->props[j];
- store_it = (elem->store_prop[j] | other_flag);
-
- /* store either in the user's structure or in other_props */
- if (elem->store_prop[j])
- elem_data = elem_ptr;
- else
- elem_data = other_data;
-
- if (prop->is_list) { /* a list */
-
- /* get and store the number of items in the list */
- get_ascii_item (words[which_word++], prop->count_external,
- &int_val, &uint_val, &double_val);
- if (store_it) {
- item = elem_data + prop->count_offset;
- store_item(item, prop->count_internal, int_val, uint_val, double_val);
- }
-
- /* allocate space for an array of items and store a ptr to the array */
- list_count = int_val;
- item_size = ply_type_size[prop->internal_type];
- store_array = (char **) (elem_data + prop->offset);
-
- if (list_count == 0) {
- if (store_it)
- *store_array = NULL;
- }
- else {
- if (store_it) {
- item_ptr = (char *) myalloc (sizeof (char) * item_size * list_count);
- item = item_ptr;
- *store_array = item_ptr;
- }
-
- /* read items and store them into the array */
- for (k = 0; k < list_count; k++) {
- get_ascii_item (words[which_word++], prop->external_type,
- &int_val, &uint_val, &double_val);
- if (store_it) {
- store_item (item, prop->internal_type,
- int_val, uint_val, double_val);
- item += item_size;
- }
- }
- }
-
- }
- else { /* not a list */
- get_ascii_item (words[which_word++], prop->external_type,
- &int_val, &uint_val, &double_val);
- if (store_it) {
- item = elem_data + prop->offset;
- store_item (item, prop->internal_type, int_val, uint_val, double_val);
- }
- }
-
- }
-
- free (words);
-}
-
-
-/******************************************************************************
-Read an element from a binary file.
-
-Entry:
- plyfile - file identifier
- elem_ptr - pointer to an element
-******************************************************************************/
-
-void binary_get_element(PlyFile *plyfile, char *elem_ptr)
-{
- int j,k;
- PlyElement *elem;
- PlyProperty *prop;
- FILE *fp = plyfile->fp;
- char *elem_data,*item=NULL;
- char *item_ptr;
- int item_size;
- int int_val;
- unsigned int uint_val;
- double double_val;
- int list_count;
- int store_it;
- char **store_array;
- char *other_data=NULL;
- int other_flag;
-
- /* the kind of element we're reading currently */
- elem = plyfile->which_elem;
-
- /* do we need to setup for other_props? */
-
- if (elem->other_offset != NO_OTHER_PROPS) {
- char **ptr;
- other_flag = 1;
- /* make room for other_props */
- other_data = (char *) myalloc (elem->other_size);
- /* store pointer in user's structure to the other_props */
- ptr = (char **) (elem_ptr + elem->other_offset);
- *ptr = other_data;
- }
- else
- other_flag = 0;
-
- /* read in a number of elements */
-
- for (j = 0; j < elem->nprops; j++) {
-
- prop = elem->props[j];
- store_it = (elem->store_prop[j] | other_flag);
-
- /* store either in the user's structure or in other_props */
- if (elem->store_prop[j])
- elem_data = elem_ptr;
- else
- elem_data = other_data;
-
- if (prop->is_list) { /* a list */
-
- /* get and store the number of items in the list */
- get_binary_item (fp, plyfile->file_type, prop->count_external,
- &int_val, &uint_val, &double_val);
- if (store_it) {
- item = elem_data + prop->count_offset;
- store_item(item, prop->count_internal, int_val, uint_val, double_val);
- }
-
- /* allocate space for an array of items and store a ptr to the array */
- list_count = int_val;
- item_size = ply_type_size[prop->internal_type];
- store_array = (char **) (elem_data + prop->offset);
- if (list_count == 0) {
- if (store_it)
- *store_array = NULL;
- }
- else {
- if (store_it) {
- item_ptr = (char *) myalloc (sizeof (char) * item_size * list_count);
- item = item_ptr;
- *store_array = item_ptr;
- }
-
- /* read items and store them into the array */
- for (k = 0; k < list_count; k++) {
- get_binary_item (fp, plyfile->file_type, prop->external_type,
- &int_val, &uint_val, &double_val);
- if (store_it) {
- store_item (item, prop->internal_type,
- int_val, uint_val, double_val);
- item += item_size;
- }
- }
- }
-
- }
- else { /* not a list */
- get_binary_item (fp, plyfile->file_type, prop->external_type,
- &int_val, &uint_val, &double_val);
- if (store_it) {
- item = elem_data + prop->offset;
- store_item (item, prop->internal_type, int_val, uint_val, double_val);
- }
- }
-
- }
-}
-
-
-/******************************************************************************
-Write to a file the word that represents a PLY data type.
-
-Entry:
- fp - file pointer
- code - code for type
-******************************************************************************/
-
-void write_scalar_type (FILE *fp, int code)
-{
- /* make sure this is a valid code */
-
- if (code <= PLY_START_TYPE || code >= PLY_END_TYPE) {
- fprintf (stderr, "write_scalar_type: bad data code = %d\n", code);
- exit (-1);
- }
-
- /* write the code to a file */
-
- fprintf (fp, "%s", type_names[code]);
-}
-
-/******************************************************************************
- Reverse the order in an array of bytes. This is the conversion from big
- endian to little endian and vice versa
-
-Entry:
- bytes - array of bytes to reverse (in place)
- num_bytes - number of bytes in array
-******************************************************************************/
-
-void swap_bytes(char *bytes, int num_bytes)
-{
- int i;
- char temp;
-
- for (i=0; i < num_bytes/2; i++)
- {
- temp = bytes[i];
- bytes[i] = bytes[(num_bytes-1)-i];
- bytes[(num_bytes-1)-i] = temp;
- }
-}
-
-/******************************************************************************
- Find out if this machine is big endian or little endian
-
- Exit:
- set global variable, native_binary_type =
- either PLY_BINARY_BE or PLY_BINARY_LE
-
-******************************************************************************/
-
-void get_native_binary_type()
-{
- endian_test_type test;
-
- test.int_value = 0;
- test.int_value = 1;
- if (test.byte_values[0] == 1)
- native_binary_type = PLY_BINARY_LE;
- else if (test.byte_values[sizeof(int)-1] == 1)
- native_binary_type = PLY_BINARY_BE;
- else
- {
- fprintf(stderr, "ply: Couldn't determine machine endianness.\n");
- fprintf(stderr, "ply: Exiting...\n");
- exit(1);
- }
-}
-
-/******************************************************************************
- Verify that all the native types are the sizes we need
-
-
-******************************************************************************/
-
-void check_types()
-{
- if ((ply_type_size[PLY_CHAR] != sizeof(char)) ||
- (ply_type_size[PLY_SHORT] != sizeof(short)) ||
- (ply_type_size[PLY_INT] != sizeof(int)) ||
- (ply_type_size[PLY_UCHAR] != sizeof(unsigned char)) ||
- (ply_type_size[PLY_USHORT] != sizeof(unsigned short)) ||
- (ply_type_size[PLY_UINT] != sizeof(unsigned int)) ||
- (ply_type_size[PLY_FLOAT] != sizeof(float)) ||
- (ply_type_size[PLY_DOUBLE] != sizeof(double)))
- {
- fprintf(stderr, "ply: Type sizes do not match built-in types\n");
- fprintf(stderr, "ply: Exiting...\n");
- exit(1);
- }
-
- types_checked = 1;
-}
-
-/******************************************************************************
-Get a text line from a file and break it up into words.
-
-IMPORTANT: The calling routine call "free" on the returned pointer once
-finished with it.
-
-Entry:
- fp - file to read from
-
-Exit:
- nwords - number of words returned
- orig_line - the original line of characters
- returns a list of words from the line, or NULL if end-of-file
-******************************************************************************/
-
-char **get_words(FILE *fp, int *nwords, char **orig_line)
-{
-#define BIG_STGAPS 4096
- static char str[BIG_STGAPS];
- static char str_copy[BIG_STGAPS];
- char **words;
- int max_words = 10;
- int num_words = 0;
- char *ptr,*ptr2;
- char *result;
-
- words = (char **) myalloc (sizeof (char *) * max_words);
-
- /* read in a line */
- result = fgets (str, BIG_STGAPS, fp);
- if (result == NULL) {
- *nwords = 0;
- *orig_line = NULL;
- return (NULL);
- }
-
- /* convert line-feed and tabs into spaces */
- /* (this guarentees that there will be a space before the */
- /* null character at the end of the string) */
-
- str[BIG_STGAPS-2] = ' ';
- str[BIG_STGAPS-1] = '\0';
-
- for (ptr = str, ptr2 = str_copy; *ptr != '\0'; ptr++, ptr2++) {
- *ptr2 = *ptr;
- if (*ptr == '\t') {
- *ptr = ' ';
- *ptr2 = ' ';
- }
- else if (*ptr == '\n') {
- *ptr = ' ';
- *ptr2 = '\0';
- break;
- }
- else if (*ptr == '\r') {
- *ptr = ' ';
- *ptr2 = '\0';
- }
- }
-
- /* find the words in the line */
-
- ptr = str;
- while (*ptr != '\0') {
-
- /* jump over leading spaces */
- while (*ptr == ' ')
- ptr++;
-
- /* break if we reach the end */
- if (*ptr == '\0')
- break;
-
- /* save pointer to beginning of word */
- if (num_words >= max_words) {
- max_words += 10;
- words = (char **) realloc (words, sizeof (char *) * max_words);
- }
- words[num_words++] = ptr;
-
- /* jump over non-spaces */
- while (*ptr != ' ')
- ptr++;
-
- /* place a null character here to mark the end of the word */
- *ptr++ = '\0';
- }
-
- /* return the list of words */
- *nwords = num_words;
- *orig_line = str_copy;
- return (words);
-}
-
-
-/******************************************************************************
-Return the value of an item, given a pointer to it and its type.
-
-Entry:
- item - pointer to item
- type - data type that "item" points to
-
-Exit:
- returns a double-precision float that contains the value of the item
-******************************************************************************/
-
-double get_item_value(char *item, int type)
-{
- unsigned char *puchar;
- char *pchar;
- short int *pshort;
- unsigned short int *pushort;
- int *pint;
- unsigned int *puint;
- float *pfloat;
- double *pdouble;
- int int_value;
- unsigned int uint_value;
- double double_value;
-
- switch (type) {
- case PLY_CHAR:
- pchar = (char *) item;
- int_value = *pchar;
- return ((double) int_value);
- case PLY_UCHAR:
- puchar = (unsigned char *) item;
- int_value = *puchar;
- return ((double) int_value);
- case PLY_SHORT:
- pshort = (short int *) item;
- int_value = *pshort;
- return ((double) int_value);
- case PLY_USHORT:
- pushort = (unsigned short int *) item;
- int_value = *pushort;
- return ((double) int_value);
- case PLY_INT:
- pint = (int *) item;
- int_value = *pint;
- return ((double) int_value);
- case PLY_UINT:
- puint = (unsigned int *) item;
- uint_value = *puint;
- return ((double) uint_value);
- case PLY_FLOAT:
- pfloat = (float *) item;
- double_value = *pfloat;
- return (double_value);
- case PLY_DOUBLE:
- pdouble = (double *) item;
- double_value = *pdouble;
- return (double_value);
- default:
- fprintf (stderr, "get_item_value: bad type = %d\n", type);
- exit (-1);
- return 0.0;
- }
-}
-
-
-/******************************************************************************
-Write out an item to a file as raw binary bytes.
-
-Entry:
- fp - file to write to
- int_val - integer version of item
- uint_val - unsigned integer version of item
- double_val - double-precision float version of item
- type - data type to write out
-******************************************************************************/
-
-void write_binary_item(
- FILE *fp,
- int file_type,
- int int_val,
- unsigned int uint_val,
- double double_val,
- int type
-)
-{
- unsigned char uchar_val;
- char char_val;
- unsigned short ushort_val;
- short short_val;
- float float_val;
- void *value;
-
- switch (type) {
- case PLY_CHAR:
- char_val = int_val;
- value = &char_val;
- break;
- case PLY_SHORT:
- short_val = int_val;
- value = &short_val;
- break;
- case PLY_INT:
- value = &int_val;
- break;
- case PLY_UCHAR:
- uchar_val = uint_val;
- value = &uchar_val;
- break;
- case PLY_USHORT:
- ushort_val = uint_val;
- value = &ushort_val;
- break;
- case PLY_UINT:
- value = &uint_val;
- break;
- case PLY_FLOAT:
- float_val = double_val;
- value = &float_val;
- break;
- case PLY_DOUBLE:
- value = &double_val;
- break;
- default:
- fprintf (stderr, "write_binary_item: bad type = %d\n", type);
- exit (-1);
- }
-
- if ((file_type != native_binary_type) && (ply_type_size[type] > 1))
- swap_bytes((char *)value, ply_type_size[type]);
-
- fwrite (value, ply_type_size[type], 1, fp);
-}
-
-
-/******************************************************************************
-Write out an item to a file as ascii characters.
-
-Entry:
- fp - file to write to
- int_val - integer version of item
- uint_val - unsigned integer version of item
- double_val - double-precision float version of item
- type - data type to write out
-******************************************************************************/
-
-void write_ascii_item(
- FILE *fp,
- int int_val,
- unsigned int uint_val,
- double double_val,
- int type
-)
-{
- switch (type) {
- case PLY_CHAR:
- case PLY_SHORT:
- case PLY_INT:
- fprintf (fp, "%d ", int_val);
- break;
- case PLY_UCHAR:
- case PLY_USHORT:
- case PLY_UINT:
- fprintf (fp, "%u ", uint_val);
- break;
- case PLY_FLOAT:
- case PLY_DOUBLE:
- fprintf (fp, "%g ", double_val);
- break;
- default:
- fprintf (stderr, "write_ascii_item: bad type = %d\n", type);
- exit (-1);
- }
-}
-
-
-/******************************************************************************
-Write out an item to a file as ascii characters.
-
-Entry:
- fp - file to write to
- item - pointer to item to write
- type - data type that "item" points to
-
-Exit:
- returns a double-precision float that contains the value of the written item
-******************************************************************************/
-
-double old_write_ascii_item(FILE *fp, char *item, int type)
-{
- unsigned char *puchar;
- char *pchar;
- short int *pshort;
- unsigned short int *pushort;
- int *pint;
- unsigned int *puint;
- float *pfloat;
- double *pdouble;
- int int_value;
- unsigned int uint_value;
- double double_value;
-
- switch (type) {
- case PLY_CHAR:
- pchar = (char *) item;
- int_value = *pchar;
- fprintf (fp, "%d ", int_value);
- return ((double) int_value);
- case PLY_UCHAR:
- puchar = (unsigned char *) item;
- int_value = *puchar;
- fprintf (fp, "%d ", int_value);
- return ((double) int_value);
- case PLY_SHORT:
- pshort = (short int *) item;
- int_value = *pshort;
- fprintf (fp, "%d ", int_value);
- return ((double) int_value);
- case PLY_USHORT:
- pushort = (unsigned short int *) item;
- int_value = *pushort;
- fprintf (fp, "%d ", int_value);
- return ((double) int_value);
- case PLY_INT:
- pint = (int *) item;
- int_value = *pint;
- fprintf (fp, "%d ", int_value);
- return ((double) int_value);
- case PLY_UINT:
- puint = (unsigned int *) item;
- uint_value = *puint;
- fprintf (fp, "%u ", uint_value);
- return ((double) uint_value);
- case PLY_FLOAT:
- pfloat = (float *) item;
- double_value = *pfloat;
- fprintf (fp, "%g ", double_value);
- return (double_value);
- case PLY_DOUBLE:
- pdouble = (double *) item;
- double_value = *pdouble;
- fprintf (fp, "%g ", double_value);
- return (double_value);
- default:
- fprintf (stderr, "old_write_ascii_item: bad type = %d\n", type);
- exit (-1);
- return 0.0;
- }
-}
-
-
-/******************************************************************************
-Get the value of an item that is in memory, and place the result
-into an integer, an unsigned integer and a double.
-
-Entry:
- ptr - pointer to the item
- type - data type supposedly in the item
-
-Exit:
- int_val - integer value
- uint_val - unsigned integer value
- double_val - double-precision floating point value
-******************************************************************************/
-
-void get_stored_item(
- void *ptr,
- int type,
- int *int_val,
- unsigned int *uint_val,
- double *double_val
-)
-{
- switch (type) {
- case PLY_CHAR:
- *int_val = *((char *) ptr);
- *uint_val = *int_val;
- *double_val = *int_val;
- break;
- case PLY_UCHAR:
- *uint_val = *((unsigned char *) ptr);
- *int_val = *uint_val;
- *double_val = *uint_val;
- break;
- case PLY_SHORT:
- *int_val = *((short int *) ptr);
- *uint_val = *int_val;
- *double_val = *int_val;
- break;
- case PLY_USHORT:
- *uint_val = *((unsigned short int *) ptr);
- *int_val = *uint_val;
- *double_val = *uint_val;
- break;
- case PLY_INT:
- *int_val = *((int *) ptr);
- *uint_val = *int_val;
- *double_val = *int_val;
- break;
- case PLY_UINT:
- *uint_val = *((unsigned int *) ptr);
- *int_val = *uint_val;
- *double_val = *uint_val;
- break;
- case PLY_FLOAT:
- *double_val = *((float *) ptr);
- *int_val = (int) *double_val;
- *uint_val = (unsigned int) *double_val;
- break;
- case PLY_DOUBLE:
- *double_val = *((double *) ptr);
- *int_val = (int) *double_val;
- *uint_val = (unsigned int) *double_val;
- break;
- default:
- fprintf (stderr, "get_stored_item: bad type = %d\n", type);
- exit (-1);
- }
-}
-
-
-/******************************************************************************
-Get the value of an item from a binary file, and place the result
-into an integer, an unsigned integer and a double.
-
-Entry:
- fp - file to get item from
- type - data type supposedly in the word
-
-Exit:
- int_val - integer value
- uint_val - unsigned integer value
- double_val - double-precision floating point value
-******************************************************************************/
-
-void get_binary_item(
- FILE *fp,
- int file_type,
- int type,
- int *int_val,
- unsigned int *uint_val,
- double *double_val
-)
-{
- char c[8];
- void *ptr;
-
- ptr = (void *) c;
-
- fread (ptr, ply_type_size[type], 1, fp);
-
- if ((file_type != native_binary_type) && (ply_type_size[type] > 1))
- swap_bytes((char *)ptr, ply_type_size[type]);
-
- switch (type) {
- case PLY_CHAR:
- *int_val = *((char *) ptr);
- *uint_val = *int_val;
- *double_val = *int_val;
- break;
- case PLY_UCHAR:
- *uint_val = *((unsigned char *) ptr);
- *int_val = *uint_val;
- *double_val = *uint_val;
- break;
- case PLY_SHORT:
- *int_val = *((short int *) ptr);
- *uint_val = *int_val;
- *double_val = *int_val;
- break;
- case PLY_USHORT:
- *uint_val = *((unsigned short int *) ptr);
- *int_val = *uint_val;
- *double_val = *uint_val;
- break;
- case PLY_INT:
- *int_val = *((int *) ptr);
- *uint_val = *int_val;
- *double_val = *int_val;
- break;
- case PLY_UINT:
- *uint_val = *((unsigned int *) ptr);
- *int_val = *uint_val;
- *double_val = *uint_val;
- break;
- case PLY_FLOAT:
- *double_val = *((float *) ptr);
- *int_val = (int) *double_val;
- *uint_val = (unsigned int) *double_val;
- break;
- case PLY_DOUBLE:
- *double_val = *((double *) ptr);
- *int_val = (int) *double_val;
- *uint_val = (unsigned int) *double_val;
- break;
- default:
- fprintf (stderr, "get_binary_item: bad type = %d\n", type);
- exit (-1);
- }
-}
-
-
-/******************************************************************************
-Extract the value of an item from an ascii word, and place the result
-into an integer, an unsigned integer and a double.
-
-Entry:
- word - word to extract value from
- type - data type supposedly in the word
-
-Exit:
- int_val - integer value
- uint_val - unsigned integer value
- double_val - double-precision floating point value
-******************************************************************************/
-
-void get_ascii_item(
- char *word,
- int type,
- int *int_val,
- unsigned int *uint_val,
- double *double_val
-)
-{
- switch (type) {
- case PLY_CHAR:
- case PLY_UCHAR:
- case PLY_SHORT:
- case PLY_USHORT:
- case PLY_INT:
- *int_val = atoi (word);
- *uint_val = (unsigned int) *int_val;
- *double_val = (double) *int_val;
- break;
-
- case PLY_UINT:
- *uint_val = strtol (word, (char **) NULL, 10);
- *int_val = (int) *uint_val;
- *double_val = (double) *uint_val;
- break;
-
- case PLY_FLOAT:
- case PLY_DOUBLE:
- *double_val = atof (word);
- *int_val = (int) *double_val;
- *uint_val = (unsigned int) *double_val;
- break;
-
- default:
- fprintf (stderr, "get_ascii_item: bad type = %d\n", type);
- exit (-1);
- }
-}
-
-
-/******************************************************************************
-Store a value into a place being pointed to, guided by a data type.
-
-Entry:
- item - place to store value
- type - data type
- int_val - integer version of value
- uint_val - unsigned integer version of value
- double_val - double version of value
-
-Exit:
- item - pointer to stored value
-******************************************************************************/
-
-void store_item (
- char *item,
- int type,
- int int_val,
- unsigned int uint_val,
- double double_val
-)
-{
- unsigned char *puchar;
- short int *pshort;
- unsigned short int *pushort;
- int *pint;
- unsigned int *puint;
- float *pfloat;
- double *pdouble;
-
- switch (type) {
- case PLY_CHAR:
- *item = int_val;
- break;
- case PLY_UCHAR:
- puchar = (unsigned char *) item;
- *puchar = uint_val;
- break;
- case PLY_SHORT:
- pshort = (short *) item;
- *pshort = int_val;
- break;
- case PLY_USHORT:
- pushort = (unsigned short *) item;
- *pushort = uint_val;
- break;
- case PLY_INT:
- pint = (int *) item;
- *pint = int_val;
- break;
- case PLY_UINT:
- puint = (unsigned int *) item;
- *puint = uint_val;
- break;
- case PLY_FLOAT:
- pfloat = (float *) item;
- *pfloat = double_val;
- break;
- case PLY_DOUBLE:
- pdouble = (double *) item;
- *pdouble = double_val;
- break;
- default:
- fprintf (stderr, "store_item: bad type = %d\n", type);
- exit (-1);
- }
-}
-
-
-/******************************************************************************
-Add an element to a PLY file descriptor.
-
-Entry:
- plyfile - PLY file descriptor
- words - list of words describing the element
- nwords - number of words in the list
-******************************************************************************/
-
-void add_element (PlyFile *plyfile, char **words)
-{
- PlyElement *elem;
-
- /* create the new element */
- elem = (PlyElement *) myalloc (sizeof (PlyElement));
- elem->name = strdup (words[1]);
- elem->num = atoi (words[2]);
- elem->nprops = 0;
-
- /* make room for new element in the object's list of elements */
- if (plyfile->nelems == 0)
- plyfile->elems = (PlyElement **) myalloc (sizeof (PlyElement *));
- else
- plyfile->elems = (PlyElement **) realloc (plyfile->elems,
- sizeof (PlyElement *) * (plyfile->nelems + 1));
-
- /* add the new element to the object's list */
- plyfile->elems[plyfile->nelems] = elem;
- plyfile->nelems++;
-}
-
-
-/******************************************************************************
-Return the type of a property, given the name of the property.
-
-Entry:
- name - name of property type
-
-Exit:
- returns integer code for property, or 0 if not found
-******************************************************************************/
-
-int get_prop_type(char *type_name)
-{
- int i;
-
- for (i = PLY_START_TYPE + 1; i < PLY_END_TYPE; i++)
- if (equal_strings (type_name, type_names[i]))
- return (i);
-
- static char *new_type_names[] = {
- "invalid",
- "int8", "int16", "int32",
- "uint8", "uint16", "uint32",
- "float32", "float64",
- };
-
- for (i = PLY_START_TYPE + 1; i < PLY_END_TYPE; i++)
- if (equal_strings (type_name, new_type_names[i]))
- return (i);
-
- /* if we get here, we didn't find the type */
- return (0);
-}
-
-
-/******************************************************************************
-Add a property to a PLY file descriptor.
-
-Entry:
- plyfile - PLY file descriptor
- words - list of words describing the property
- nwords - number of words in the list
-******************************************************************************/
-
-void add_property (PlyFile *plyfile, char **words)
-{
- PlyProperty *prop;
- PlyElement *elem;
-
- /* create the new property */
-
- prop = (PlyProperty *) myalloc (sizeof (PlyProperty));
-
- if (equal_strings (words[1], "list")) { /* is a list */
- prop->count_external = get_prop_type (words[2]);
- prop->external_type = get_prop_type (words[3]);
- prop->name = strdup (words[4]);
- prop->is_list = 1;
- }
- else { /* not a list */
- prop->external_type = get_prop_type (words[1]);
- prop->name = strdup (words[2]);
- prop->is_list = 0;
- }
-
- /* add this property to the list of properties of the current element */
-
- elem = plyfile->elems[plyfile->nelems - 1];
-
- if (elem->nprops == 0)
- elem->props = (PlyProperty **) myalloc (sizeof (PlyProperty *));
- else
- elem->props = (PlyProperty **) realloc (elem->props,
- sizeof (PlyProperty *) * (elem->nprops + 1));
-
- elem->props[elem->nprops] = prop;
- elem->nprops++;
-}
-
-
-/******************************************************************************
-Add a comment to a PLY file descriptor.
-
-Entry:
- plyfile - PLY file descriptor
- line - line containing comment
-******************************************************************************/
-
-void add_comment (PlyFile *plyfile, char *line)
-{
- int i;
-
- /* skip over "comment" and leading spaces and tabs */
- i = 7;
- while (line[i] == ' ' || line[i] == '\t')
- i++;
-
- ply_put_comment (plyfile, &line[i]);
-}
-
-
-/******************************************************************************
-Add a some object information to a PLY file descriptor.
-
-Entry:
- plyfile - PLY file descriptor
- line - line containing text info
-******************************************************************************/
-
-void add_obj_info (PlyFile *plyfile, char *line)
-{
- int i;
-
- /* skip over "obj_info" and leading spaces and tabs */
- i = 8;
- while (line[i] == ' ' || line[i] == '\t')
- i++;
-
- ply_put_obj_info (plyfile, &line[i]);
-}
-
-
-/******************************************************************************
-Copy a property.
-******************************************************************************/
-
-void copy_property(PlyProperty *dest, PlyProperty *src)
-{
- dest->name = strdup (src->name);
- dest->external_type = src->external_type;
- dest->internal_type = src->internal_type;
- dest->offset = src->offset;
-
- dest->is_list = src->is_list;
- dest->count_external = src->count_external;
- dest->count_internal = src->count_internal;
- dest->count_offset = src->count_offset;
-}
-
-
-/******************************************************************************
-Allocate some memory.
-
-Entry:
- size - amount of memory requested (in bytes)
- lnum - line number from which memory was requested
- fname - file name from which memory was requested
-******************************************************************************/
-
-char *my_alloc(int size, int lnum, char *fname)
-{
- char *ptr;
-
- ptr = (char *) malloc (size);
-
- if (ptr == 0) {
- fprintf(stderr, "Memory allocation bombed on line %d in %s\n", lnum, fname);
- }
-
- return (ptr);
-}
-
diff --git a/pkgs/R3Shapes/ply.h b/pkgs/R3Shapes/ply.h
deleted file mode 100644
index ddf138a..0000000
--- a/pkgs/R3Shapes/ply.h
+++ /dev/null
@@ -1,209 +0,0 @@
-/*
-
-Header for PLY polygon files.
-
-- Greg Turk, March 1994
-
-A PLY file contains a single polygonal _object_.
-
-An object is composed of lists of _elements_. Typical elements are
-vertices, faces, edges and materials.
-
-Each type of element for a given object has one or more _properties_
-associated with the element type. For instance, a vertex element may
-have as properties three floating-point values x,y,z and three unsigned
-chars for red, green and blue.
-
----------------------------------------------------------------
-
-Copyright (c) 1994 The Board of Trustees of The Leland Stanford
-Junior University. All rights reserved.
-
-Permission to use, copy, modify and distribute this software and its
-documentation for any purpose is hereby granted without fee, provided
-that the above copyright notice and this permission notice appear in
-all copies of this software and that you do not sell the software.
-
-THE SOFTWARE IS PROVIDED "AS IS" AND WITHOUT WARRANTY OF ANY KIND,
-EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
-WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
-
-*/
-
-#ifndef __PLY_H__
-#define __PLY_H__
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <stddef.h>
-#include <string.h>
-
-#define PLY_ASCII 1 /* ascii PLY file */
-#define PLY_BINARY_BE 2 /* binary PLY file, big endian */
-#define PLY_BINARY_LE 3 /* binary PLY file, little endian */
-#define PLY_BINARY_NATIVE 4 /* binary PLY file, same endianness as
- current architecture */
-
-#define PLY_OKAY 0 /* ply routine worked okay */
-#define PLY_ERROR -1 /* error in ply routine */
-
-/* scalar data types supported by PLY format */
-
-#define PLY_START_TYPE 0
-#define PLY_CHAR 1
-#define PLY_SHORT 2
-#define PLY_INT 3
-#define PLY_UCHAR 4
-#define PLY_USHORT 5
-#define PLY_UINT 6
-#define PLY_FLOAT 7
-#define PLY_DOUBLE 8
-#define PLY_END_TYPE 9
-
-#define PLY_SCALAR 0
-#define PLY_LIST 1
-
-
-typedef struct PlyProperty { /* description of a property */
-
- char *name; /* property name */
- int external_type; /* file's data type */
- int internal_type; /* program's data type */
- int offset; /* offset bytes of prop in a struct */
-
- int is_list; /* 1 = list, 0 = scalar */
- int count_external; /* file's count type */
- int count_internal; /* program's count type */
- int count_offset; /* offset byte for list count */
-
-} PlyProperty;
-
-typedef struct PlyElement { /* description of an element */
- char *name; /* element name */
- int num; /* number of elements in this object */
- int size; /* size of element (bytes) or -1 if variable */
- int nprops; /* number of properties for this element */
- PlyProperty **props; /* list of properties in the file */
- char *store_prop; /* flags: property wanted by user? */
- int other_offset; /* offset to un-asked-for props, or -1 if none*/
- int other_size; /* size of other_props structure */
-} PlyElement;
-
-typedef struct PlyOtherProp { /* describes other properties in an element */
- char *name; /* element name */
- int size; /* size of other_props */
- int nprops; /* number of properties in other_props */
- PlyProperty **props; /* list of properties in other_props */
-} PlyOtherProp;
-
-typedef struct OtherData { /* for storing other_props for an other element */
- void *other_props;
-} OtherData;
-
-typedef struct OtherElem { /* data for one "other" element */
- char *elem_name; /* names of other elements */
- int elem_count; /* count of instances of each element */
- OtherData **other_data; /* actual property data for the elements */
- PlyOtherProp *other_props; /* description of the property data */
-} OtherElem;
-
-typedef struct PlyOtherElems { /* "other" elements, not interpreted by user */
- int num_elems; /* number of other elements */
- OtherElem *other_list; /* list of data for other elements */
-} PlyOtherElems;
-
-typedef struct PlyFile { /* description of PLY file */
- FILE *fp; /* file pointer */
- int file_type; /* ascii or binary */
- float version; /* version number of file */
- int nelems; /* number of elements of object */
- PlyElement **elems; /* list of elements */
- int num_comments; /* number of comments */
- char **comments; /* list of comments */
- int num_obj_info; /* number of items of object information */
- char **obj_info; /* list of object info items */
- PlyElement *which_elem; /* which element we're currently writing */
- PlyOtherElems *other_elems; /* "other" elements from a PLY file */
-} PlyFile;
-
-/* memory allocation */
-extern char *my_alloc();
-#define myalloc(mem_size) my_alloc((mem_size), __LINE__, __FILE__)
-
-#ifndef ALLOCN
-#define REALLOCN(PTR,TYPE,OLD_N,NEW_N) \
- { \
- if ((OLD_N) == 0) \
- { ALLOCN((PTR),TYPE,(NEW_N));} \
- else \
- { \
- (PTR) = (TYPE *)realloc((PTR),(NEW_N)*sizeof(TYPE)); \
- if (((PTR) == NULL) && ((NEW_N) != 0)) \
- { \
- fprintf(stderr, "Memory reallocation failed on line %d in %s\n", \
- __LINE__, __FILE__); \
- fprintf(stderr, " tried to reallocate %d->%d\n", \
- (OLD_N), (NEW_N)); \
- exit(-1); \
- } \
- if ((NEW_N)>(OLD_N)) \
- memset((char *)(PTR)+(OLD_N)*sizeof(TYPE), 0, \
- ((NEW_N)-(OLD_N))*sizeof(TYPE)); \
- } \
- }
-
-#define ALLOCN(PTR,TYPE,N) \
- { (PTR) = (TYPE *) calloc(((unsigned)(N)),sizeof(TYPE));\
- if ((PTR) == NULL) { \
- fprintf(stderr, "Memory allocation failed on line %d in %s\n", \
- __LINE__, __FILE__); \
- exit(-1); \
- } \
- }
-
-
-#define FREE(PTR) { free((PTR)); (PTR) = NULL; }
-#endif
-
-
-/*** delcaration of routines ***/
-
-extern PlyFile *ply_write(FILE *, int, char **, int);
-extern PlyFile *ply_open_for_writing(char *, int, char **, int, float *);
-extern void ply_describe_element(PlyFile *, char *, int, int, PlyProperty *);
-extern void ply_describe_property(PlyFile *, char *, PlyProperty *);
-extern void ply_element_count(PlyFile *, char *, int);
-extern void ply_header_complete(PlyFile *);
-extern void ply_put_element_setup(PlyFile *, char *);
-extern void ply_put_element(PlyFile *, void *);
-extern void ply_put_comment(PlyFile *, char *);
-extern void ply_put_obj_info(PlyFile *, char *);
-extern PlyFile *ply_read(FILE *, int *, char ***);
-extern PlyFile *ply_open_for_reading( char *, int *, char ***, int *, float *);
-extern PlyProperty **ply_get_element_description(PlyFile *, char *, int*, int*);
-extern void ply_get_element_setup( PlyFile *, char *, int, PlyProperty *);
-extern void ply_get_property(PlyFile *, char *, PlyProperty *);
-extern PlyOtherProp *ply_get_other_properties(PlyFile *, char *, int);
-extern void ply_get_element(PlyFile *, void *);
-extern char **ply_get_comments(PlyFile *, int *);
-extern char **ply_get_obj_info(PlyFile *, int *);
-extern void ply_close(PlyFile *);
-extern void ply_get_info(PlyFile *, float *, int *);
-extern PlyOtherElems *ply_get_other_element (PlyFile *, char *, int);
-extern void ply_describe_other_elements ( PlyFile *, PlyOtherElems *);
-extern void ply_put_other_elements (PlyFile *);
-extern void ply_free_other_elements (PlyOtherElems *);
-extern void ply_describe_other_properties(PlyFile *, PlyOtherProp *, int);
-
-extern int equal_strings(char *, char *);
-
-
-#ifdef __cplusplus
-}
-#endif
-#endif /* !__PLY_H__ */
-
--
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