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plylib.cpp
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plylib.cpp
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/****************************************************************************
* VCGLib o o *
* Visual and Computer Graphics Library o o *
* _ O _ *
* Copyright(C) 2004 \/)\/ *
* Visual Computing Lab /\/| *
* ISTI - Italian National Research Council | *
* \ *
* All rights reserved. *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) *
* for more details. *
* *
****************************************************************************/
/****************************************************************************
Acknowlegments
Portions of this file were based on the original code of the Ply library
of Greg Turk and on the work of Claudio Rocchini
****************************************************************************/
/****************************************************************************
History
$Log: not supported by cvs2svn $
Revision 1.12 2006/01/27 09:09:10 corsini
Fix signed/unsigned mismatch
Revision 1.11 2005/12/02 00:00:53 cignoni
Moved and corrected interpret_texture_name from plystuff.h to plylib.cpp
Revision 1.10 2005/11/26 00:22:46 cignoni
added untested code of interpret_texture
Revision 1.9 2005/11/12 07:07:47 cignoni
Changed Offset types to remove warnings
Revision 1.8 2005/03/15 11:46:52 cignoni
Cleaning of the automatic bbox caching support for ply files. First working version.
Revision 1.7 2005/01/03 10:35:59 cignoni
Improved the compatibility for ply format for faces having the list size (e.g. number of vertexes of a face) as a char
instead of a uchar.
Added a couple of new face descriptors, corrected a bug in error reporting function (and restructured) and translated a
few comments.
Thanks to Patrick Min for the careful bug reporting
Revision 1.6 2004/06/23 15:36:57 cignoni
Restructured management of error, now the standard open for any mesh type return the error code, the default success
value is zero
Any import class has a method ErrorMsg that give a verbal description of an error code.
Revision 1.5 2004/06/23 00:06:45 ponchio
Moved #define LITTLE_MACHINE outside of #ifdef WIN32 (linux on PC is little too).
Revision 1.4 2004/05/12 17:21:08 ganovelli
inclusion of io.h removed (unnecessary)
Revision 1.3 2004/05/12 10:13:29 ganovelli
direct.h was included also without WIN32 definition
Revision 1.2 2004/04/06 21:48:50 cignoni
Commented out unused parameter names
Revision 1.1 2004/03/03 15:00:51 cignoni
Initial commit
****************************************************************************/
// Note that on ppc mac (the only bigendian machine around)
// the preprocessor def __BIG_ENDIAN__ is always defined.
// Otherwise we should be on a little endian machine (intel/amd based)
#ifndef __BIG_ENDIAN__
#define LITTLE_MACHINE
#endif
#ifdef WIN32
#define assert ASSERT
#else
#include <assert.h>
#endif
#ifdef _MSC_VER
#pragma warning(disable : 4267)
#endif
#ifdef WIN32
#include <direct.h>
#endif
#include <assert.h>
#include <fcntl.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <time.h>
#include <algorithm>
#include <vector>
#include "plylib.h"
using namespace std;
namespace vcg
{
namespace ply
{
typedef unsigned short ushort;
typedef unsigned long ulong;
typedef unsigned char uchar;
typedef unsigned int uint;
//#ifdef USE_ZLIB
//#include <zlib.h>
//#define XFILE void
//#define pb_fclose gzclose
//#define pb_fopen gzopen
//#define pb_fgets(s,n,f) gzgets(f,s,n)
//#define pb_fread(b,s,n,f) gzread(f,b,(s)*(n))
//#else
#define XFILE FILE
#define pb_fclose fclose
#define pb_fopen fopen
#define pb_fgets(s, n, f) fgets(s, n, f)
#define pb_fread(b, s, n, f) fread(b, s, n, f)
//#endif
//#ifdef WIN32
#define pb_mkdir(n) _mkdir(n)
#define pb_access _access
#define pb_stat _stat
#define pb_open _open
#define pb_close _close
/*
#else
#define pb_mkdir(n) mkdir(n,0)
#define pb_access access
#define pb_stat stat
#define pb_open open
#define pb_close close
#endif
*/
// Funzioni statiche per la lettura di un elemento
int ReadBin(XFILE *fp, const PlyProperty *pr, void *mem, int fmt);
int ReadAscii(XFILE *fp, const PlyProperty *pr, void *mem, int fmt);
const char * ::vcg::ply::PlyFile::typenames[9] = { "none", "char", "short", "int", "uchar",
"ushort", "uint", "float", "double" };
const char *PlyFile::newtypenames[9] = { "none", "int8", "int16", "int32", "uint8",
"uint16", "uint32", "float32", "float64" };
static int TypeSize[] = { 0, 1, 2, 4, 1, 2, 4, 4, 8 };
size_t PropDescriptor::memtypesize() const
{
return TypeSize[memtype1];
}
size_t PropDescriptor::stotypesize() const
{
return TypeSize[stotype1];
}
const char *PropDescriptor::memtypename() const
{
return PlyFile::typenames[memtype1];
}
const char *PropDescriptor::stotypename() const
{
return PlyFile::typenames[stotype1];
}
static char CrossType[9][9] = { { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, { 0, 1, 1, 1, 1, 1, 1, 0, 0 },
{ 0, 0, 1, 1, 0, 1, 1, 0, 0 }, { 0, 0, 0, 1, 0, 0, 1, 0, 0 },
{ 0, 1, 1, 1, 1, 1, 1, 0, 0 }, { 0, 0, 1, 1, 0, 1, 1, 0, 0 },
{ 0, 0, 0, 1, 0, 0, 1, 0, 0 }, { 0, 0, 0, 0, 0, 0, 0, 1, 1 },
{ 0, 0, 0, 0, 0, 0, 0, 1, 1 } };
// ******************************************************
// Funzioni di supporto per la lettura/scrittura dei dati
// ******************************************************
// Big-little endian
static inline void SwapShort(ushort *s)
{
assert(s);
*s = ushort((int(*s) >> 8) | (int(*s) << 8));
}
static inline void SwapInt(uint *x)
{
assert(x);
*x = (((*x) >> 24) & 0x000000FF) | (((*x) >> 8) & 0x0000FF00) | (((*x) << 8) & 0x00FF0000) |
(((*x) << 24) & 0xFF000000);
}
static inline void SwapDouble(double * /*d*/)
{
// Come si fa?
assert(0);
}
// Lettura tipi binari
static inline int ReadCharB(XFILE *fp, char *c, int /*format*/)
{
assert(fp);
assert(c);
return pb_fread(c, 1, 1, fp);
}
static inline int ReadShortB(XFILE *fp, short *s, int format)
{
assert(fp);
assert(s);
int r;
r = pb_fread(s, sizeof(short), 1, fp);
#ifdef LITTLE_MACHINE
if (format == F_BINBIG)
#else
if (format == F_BINLITTLE)
#endif
SwapShort((ushort *)s);
return r;
}
static inline int ReadIntB(XFILE *fp, int *i, int format)
{
assert(fp);
assert(i);
int r;
r = pb_fread(i, sizeof(int), 1, fp);
#ifdef LITTLE_MACHINE
if (format == F_BINBIG)
#else
if (format == F_BINLITTLE)
#endif
SwapInt((uint *)i);
return r;
}
static inline int ReadUCharB(XFILE *fp, uchar *uc, int /*format*/)
{
assert(fp);
assert(uc);
return pb_fread(uc, 1, 1, fp);
}
static inline int ReadUShortB(XFILE *fp, ushort *us, int format)
{
assert(fp);
assert(us);
int r;
r = pb_fread(us, sizeof(ushort), 1, fp);
#ifdef LITTLE_MACHINE
if (format == F_BINBIG)
#else
if (format == F_BINLITTLE)
#endif
SwapShort(us);
return r;
}
static inline int ReadUIntB(XFILE *fp, uint *ui, int format)
{
assert(fp);
assert(ui);
int r;
r = pb_fread(ui, sizeof(uint), 1, fp);
#ifdef LITTLE_MACHINE
if (format == F_BINBIG)
#else
if (format == F_BINLITTLE)
#endif
SwapInt(ui);
return r;
}
static inline int ReadFloatB(XFILE *fp, float *f, int format)
{
assert(fp);
assert(f);
int r;
r = pb_fread(f, sizeof(float), 1, fp);
#ifdef LITTLE_MACHINE
if (format == F_BINBIG)
#else
if (format == F_BINLITTLE)
#endif
SwapInt((uint *)f);
return r;
}
static inline int ReadDoubleB(XFILE *fp, double *d, int format)
{
assert(fp);
assert(d);
int r;
r = pb_fread(d, sizeof(double), 1, fp);
#ifdef LITTLE_MACHINE
if (format == F_BINBIG)
#else
if (format == F_BINLITTLE)
#endif
SwapDouble(d);
return r;
}
// --- simulazione di scanf ------
// static bool sbuffer_ok = false;
// static const int SBUFFERSIZE = 4096;
// static char sbuffer[SBUFFERSIZE];
// static const char * separators = " \t,\n\r\f";
static void InitSBuffer()
{
// sbuffer_ok = false;
}
static inline int ReadInt(XFILE *fp, int &t)
{
/*
char * p;
if(!sbuffer_ok)
{
pb_fgets(sbuffer,SBUFFERSIZE,fp);
p = strtok(sbuffer,separators);
sbuffer_ok = true;
}
else p = strtok(0,separators);
if(p==0)
{
pb_fgets(sbuffer,SBUFFERSIZE,fp);
p = strtok(sbuffer,separators);
}
t = atoi(p);
return 1;
*/
int r = fscanf(fp, "%d", &t);
if (r == EOF)
r = 0;
return r;
}
static inline int ReadUInt(XFILE *fp, unsigned int &t)
{
/*
char * p;
if(!sbuffer_ok)
{
pb_fgets(sbuffer,SBUFFERSIZE,fp);
p = strtok(sbuffer,separators);
sbuffer_ok = true;
}
else p = strtok(0,separators);
if(p==0)
{
pb_fgets(sbuffer,SBUFFERSIZE,fp);
p = strtok(sbuffer,separators);
}
t = atoi(p);
return 1;
*/
int r = fscanf(fp, "%u", &t);
if (r == EOF)
r = 0;
return r;
}
static inline int ReadFloat(XFILE *fp, float &f)
{
/*
char * p;
if(!sbuffer_ok)
{
pb_fgets(sbuffer,SBUFFERSIZE,fp);
p = strtok(sbuffer,separators);
sbuffer_ok = true;
}
else p = strtok(0,separators);
if(p==0)
{
pb_fgets(sbuffer,SBUFFERSIZE,fp);
p = strtok(sbuffer,separators);
}
f = atof(p);
return 1;
*/
int r = fscanf(fp, "%f", &f);
if (r == EOF)
r = 0;
return r;
}
static inline int ReadDouble(XFILE *fp, double &d)
{
/*
char * p;
if(!sbuffer_ok)
{
pb_fgets(sbuffer,SBUFFERSIZE,fp);
p = strtok(sbuffer,separators);
sbuffer_ok = true;
}
else p = strtok(0,separators);
if(p==0)
{
pb_fgets(sbuffer,SBUFFERSIZE,fp);
p = strtok(sbuffer,separators);
}
d = atof(p);
return 1;
*/
int r = fscanf(fp, "%lf", &d);
if (r == EOF)
r = 0;
return r;
}
// Lettura tipi ascii
static inline int ReadCharA(XFILE *fp, char *c)
{
assert(fp);
assert(c);
int r, t;
r = ReadInt(fp, t);
*c = (char)t;
return r;
}
static inline int ReadShortA(XFILE *fp, short *s)
{
assert(fp);
assert(s);
int r, t;
r = ReadInt(fp, t);
*s = (short)t;
return r;
}
static inline int ReadIntA(XFILE *fp, int *i)
{
assert(fp);
assert(i);
return ReadInt(fp, *i);
}
static inline int ReadUCharA(XFILE *fp, uchar *uc)
{
assert(fp);
assert(uc);
int r;
uint t;
r = ReadUInt(fp, t);
*uc = (uchar)t;
return r;
}
static inline int ReadUShortA(XFILE *fp, ushort *us)
{
assert(fp);
assert(us);
int r;
uint t;
r = ReadUInt(fp, t);
*us = (ushort)t;
return r;
}
static inline int ReadUIntA(XFILE *fp, uint *ui)
{
assert(fp);
assert(ui);
return ReadUInt(fp, *ui);
}
static inline int ReadFloatA(XFILE *fp, float *f)
{
assert(fp);
assert(f);
return ReadFloat(fp, *f);
}
static inline int ReadDoubleA(XFILE *fp, double *d)
{
assert(fp);
assert(d);
return ReadDouble(fp, *d);
}
// Memorizza il valore val nella variabile mem di tipo tm
static inline void StoreInt(void *mem, const int tm, const int val)
{
assert(mem);
switch (tm)
{
case T_CHAR:
*(char *)mem = (char)val;
break;
case T_SHORT:
*(short *)mem = (short)val;
break;
case T_INT:
*(int *)mem = (int)val;
break;
case T_UCHAR:
*(uchar *)mem = (uchar)val;
break;
case T_USHORT:
*(ushort *)mem = (ushort)val;
break;
case T_UINT:
*(uint *)mem = (uint)val;
break;
case T_FLOAT:
*(float *)mem = (float)val;
break;
case T_DOUBLE:
*(double *)mem = (double)val;
break;
default:
assert(0);
}
}
// Salta un valore nel file
static inline int SkipScalarA(XFILE *fp, const int tf)
{
int t;
float f;
assert(fp);
switch (tf)
{
case T_CHAR:
case T_SHORT:
case T_INT:
case T_UCHAR:
case T_USHORT:
case T_UINT:
return ReadInt(fp, t);
case T_FLOAT:
case T_DOUBLE:
return ReadFloat(fp, f);
default:
assert(0);
return 0;
}
}
static inline int SkipScalarB(XFILE *fp, const int tf)
{
static char dummy[8];
assert(fp);
return pb_fread(dummy, 1, TypeSize[tf], fp);
}
static int ReadScalarB(XFILE *fp, void *mem, const int tf, const int tm, int fmt)
{
static char ch;
static short sh;
static int in;
static uchar uc;
static ushort us;
static uint ui;
static float fl;
static double dd;
int r = 0;
switch (tf)
{
case T_CHAR: //================== Lettura char
r = ReadCharB(fp, &ch, fmt);
switch (tm)
{
case T_CHAR:
*(char *)mem = (char)ch;
break;
case T_SHORT:
*(short *)mem = (short)ch;
break;
case T_INT:
*(int *)mem = (int)ch;
break;
case T_UCHAR:
*(uchar *)mem = (uchar)ch;
break;
case T_USHORT:
*(ushort *)mem = (ushort)ch;
break;
case T_UINT:
*(uint *)mem = (uint)ch;
break;
case T_FLOAT:
*(float *)mem = (float)ch;
break;
case T_DOUBLE:
*(double *)mem = (double)ch;
break;
default:
assert(0);
}
break;
case T_SHORT: //================== Lettura short
r = ReadShortB(fp, &sh, fmt);
switch (tm)
{
case T_CHAR:
*(char *)mem = (char)sh;
break;
case T_SHORT:
*(short *)mem = (short)sh;
break;
case T_INT:
*(int *)mem = (int)sh;
break;
case T_UCHAR:
*(uchar *)mem = (uchar)sh;
break;
case T_USHORT:
*(ushort *)mem = (ushort)sh;
break;
case T_UINT:
*(uint *)mem = (uint)sh;
break;
case T_FLOAT:
*(float *)mem = (float)sh;
break;
case T_DOUBLE:
*(double *)mem = (double)sh;
break;
default:
assert(0);
}
break;
case T_INT: //================== Lettura int
r = ReadIntB(fp, &in, fmt);
switch (tm)
{
case T_CHAR:
*(char *)mem = (char)in;
break;
case T_SHORT:
*(short *)mem = (short)in;
break;
case T_INT:
*(int *)mem = (int)in;
break;
case T_UCHAR:
*(uchar *)mem = (uchar)in;
break;
case T_USHORT:
*(ushort *)mem = (ushort)in;
break;
case T_UINT:
*(uint *)mem = (uint)in;
break;
case T_FLOAT:
*(float *)mem = (float)in;
break;
case T_DOUBLE:
*(double *)mem = (double)in;
break;
default:
assert(0);
}
break;
case T_UCHAR: //================== Lettura uchar
r = ReadUCharB(fp, &uc, fmt);
switch (tm)
{
case T_CHAR:
*(char *)mem = (char)uc;
break;
case T_SHORT:
*(short *)mem = (short)uc;
break;
case T_INT:
*(int *)mem = (int)uc;
break;
case T_UCHAR:
*(uchar *)mem = (uchar)uc;
break;
case T_USHORT:
*(ushort *)mem = (ushort)uc;
break;
case T_UINT:
*(uint *)mem = (uint)uc;
break;
case T_FLOAT:
*(float *)mem = (float)uc;
break;
case T_DOUBLE:
*(double *)mem = (double)uc;
break;
default:
assert(0);
}
break;
case T_USHORT: //================== Lettura ushort
r = ReadUShortB(fp, &us, fmt);
switch (tm)
{
case T_CHAR:
*(char *)mem = (char)us;
break;
case T_SHORT:
*(short *)mem = (short)us;
break;
case T_INT:
*(int *)mem = (int)us;
break;
case T_UCHAR:
*(uchar *)mem = (uchar)us;
break;
case T_USHORT:
*(ushort *)mem = (ushort)us;
break;
case T_UINT:
*(uint *)mem = (uint)us;
break;
case T_FLOAT:
*(float *)mem = (float)us;
break;
case T_DOUBLE:
*(double *)mem = (double)us;
break;
default:
assert(0);
}
break;
case T_UINT: //================== Lettura uint
r = ReadUIntB(fp, &ui, fmt);
switch (tm)
{
case T_CHAR:
*(char *)mem = (char)ui;
break;
case T_SHORT:
*(short *)mem = (short)ui;
break;
case T_INT:
*(int *)mem = (int)ui;
break;
case T_UCHAR:
*(uchar *)mem = (uchar)ui;
break;
case T_USHORT:
*(ushort *)mem = (ushort)ui;
break;
case T_UINT:
*(uint *)mem = (uint)ui;
break;
case T_FLOAT:
*(float *)mem = (float)ui;
break;
case T_DOUBLE:
*(double *)mem = (double)ui;
break;
default:
assert(0);
}
break;
case T_FLOAT: //================== Lettura float
r = ReadFloatB(fp, &fl, fmt);
switch (tm)
{
case T_FLOAT:
*(float *)mem = fl;
break;
case T_DOUBLE:
*(double *)mem = fl;
break;
default:
assert(0);
}
break;
case T_DOUBLE: //================== Lettura double
r = ReadDoubleB(fp, &dd, fmt);
switch (tm)
{
case T_FLOAT:
*(float *)mem = (float)dd;
break;
case T_DOUBLE:
*(double *)mem = dd;
break;
default:
assert(0);
}
break;
default:
assert(0);
}
return r;
}
// Legge un valore di tipo tf e lo memorizza col tipo tm
static int ReadScalarA(XFILE *fp, void *mem, const int tf, const int tm)
{
static char ch;
static short sh;
static int in;
static uchar uc;
static ushort us;
static uint ui;
static float fl;
static double dd;
int r = 0;
switch (tf)
{
case T_CHAR: //================== Lettura char
r = ReadCharA(fp, &ch);
switch (tm)
{
case T_CHAR:
*(char *)mem = (char)ch;
break;
case T_SHORT:
*(short *)mem = (short)ch;
break;
case T_INT:
*(int *)mem = (int)ch;
break;
case T_UCHAR:
*(uchar *)mem = (uchar)ch;
break;
case T_USHORT:
*(ushort *)mem = (ushort)ch;
break;
case T_UINT:
*(uint *)mem = (uint)ch;
break;
case T_FLOAT:
*(float *)mem = (float)ch;
break;
case T_DOUBLE:
*(double *)mem = (double)ch;
break;
default:
assert(0);
}
break;
case T_SHORT: //================== Lettura short
r = ReadShortA(fp, &sh);
switch (tm)
{
case T_CHAR:
*(char *)mem = (char)sh;
break;
case T_SHORT:
*(short *)mem = (short)sh;
break;
case T_INT:
*(int *)mem = (int)sh;
break;
case T_UCHAR:
*(uchar *)mem = (uchar)sh;
break;
case T_USHORT:
*(ushort *)mem = (ushort)sh;
break;
case T_UINT:
*(uint *)mem = (uint)sh;
break;
case T_FLOAT:
*(float *)mem = (float)sh;
break;
case T_DOUBLE:
*(double *)mem = (double)sh;
break;
default:
assert(0);
}
break;
case T_INT: //================== Lettura int
r = ReadIntA(fp, &in);
switch (tm)
{
case T_CHAR:
*(char *)mem = (char)in;
break;
case T_SHORT:
*(short *)mem = (short)in;
break;
case T_INT:
*(int *)mem = (int)in;
break;
case T_UCHAR:
*(uchar *)mem = (uchar)in;
break;
case T_USHORT:
*(ushort *)mem = (ushort)in;
break;
case T_UINT:
*(uint *)mem = (uint)in;
break;
case T_FLOAT:
*(float *)mem = (float)in;
break;
case T_DOUBLE:
*(double *)mem = (double)in;
break;
default:
assert(0);
}
break;
case T_UCHAR: //================== Lettura uchar
r = ReadUCharA(fp, &uc);
switch (tm)
{
case T_CHAR:
*(char *)mem = (char)uc;
break;
case T_SHORT:
*(short *)mem = (short)uc;
break;
case T_INT:
*(int *)mem = (int)uc;
break;
case T_UCHAR:
*(uchar *)mem = (uchar)uc;
break;
case T_USHORT:
*(ushort *)mem = (ushort)uc;
break;
case T_UINT:
*(uint *)mem = (uint)uc;
break;
case T_FLOAT:
*(float *)mem = (float)uc;
break;
case T_DOUBLE:
*(double *)mem = (double)uc;
break;