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/********************************************************************************/
/* */
/* Papyrus 3 library. */
/* This library constitutes a DICOM file system which helps reading and writing */
/* DICOM files and DICOMDIR files. */
/* */
/* Copyright (C) 2004 - Service of Medical Informatics - */
/* University Hospitals of Geneva (HUG), Geneva, Switzerland */
/* */
/* This library is a free software; you can redistribute it and/or modify it */
/* under the terms of the GNU Lesser General Public License as published by the */
/* Free Software Foundation; either version 2.1 of the License, or */
/* (at your option) any later version. */
/* */
/* This library 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 Lesser General Public License for more details. */
/* */
/* You should have received a copy of the GNU Lesser General Public License */
/* along with this library; if not, write to */
/* the Free Software Foundation, Inc., */
/* 59 Temple Place, Suite 330, */
/* Boston, MA 02111-1307 USA */
/* */
/* You can contact us for more information at osiris@sim.hcuge.ch */
/* or by writing to Papyrus, */
/* Unite d'Imagerie Numerique / Service d'Informatique Medicale / HUG, */
/* 24, Micheli-du-Crest street, 1211 Geneva 14, Switzerland. */
/* */
/* The University Hopitals of Geneva, hereby disclaims all copyright interest */
/* in the library `Papyrus' (a library for reading and writing DICOM files). */
/* */
/* Geneva, april 2004 */
/* Antoine Geissbuhler, head of the Service of Medical Informatics, */
/* University Hospitals of Geneva, Switzerland */
/* */
/********************************************************************************/
/********************************************************************************/
/* */
/* Project : P A P Y R U S Toolkit */
/* File : PapyMemorySystemMac3.c */
/* Function : contains machine specific calls to the different file systems */
/* Authors : Antoine ROSSET */
/* */
/* History : 02.1998 version 3.1 */
/* 04.2001 version 3.7 */
/* 09.2001 version 3.7 on CVS */
/* 10.2001 version 3.71 MAJ Dicom par CHG */
/* */
/********************************************************************************/
/* ------------------------- includes ------------------------------------------*/
#include <Files.h>
#include <string.h>
#include <Script.h>
#ifndef PapyFileSystem3H
#include "PapyFileSystem3.h"
#endif
#ifndef PapyMemorySystemMac3H
#include "PapyMemorySystemMac3.h"
#endif
typedef struct SPapyMemStruct
{
Ptr mFileP;
long mFilePos, mFileSize;
PAPY_FILE mvRefNum;
HIOParam mPtrParm;
} SPapyMemStruct;
static SPapyMemStruct thePapMemStruct [200]; /* Maximum of 200 files open */
static short theListSize = 0;
/********************************************************************************/
/* */
/* Papy3LoadFileMem */
/* return : standard error message */
/* */
/********************************************************************************/
PapyShort Papy3LoadFileMem (PAPY_FILE inVRefNum)
{
OSErr theErr;
theErr = (PapyShort) GetEOF (inVRefNum, &thePapMemStruct [theListSize].mFileSize);
/* thePapMemStruct [theListSize].mFileP = NewPtr (thePapMemStruct [theListSize].mFileSize);*/
thePapMemStruct [theListSize].mFileP = (char *) emalloc3 ((PapyULong) thePapMemStruct [theListSize].mFileSize);
if (thePapMemStruct [theListSize].mFileP == 0L) return -1;
thePapMemStruct [theListSize].mPtrParm.ioRefNum = (short) inVRefNum;
thePapMemStruct [theListSize].mPtrParm.ioBuffer = (Ptr) thePapMemStruct [theListSize].mFileP;
thePapMemStruct [theListSize].mPtrParm.ioReqCount = (long) thePapMemStruct [theListSize].mFileSize;
thePapMemStruct [theListSize].mPtrParm.ioPosMode = fsFromStart;
theErr = (PapyShort) PBRead ((ParmBlkPtr) &thePapMemStruct [theListSize].mPtrParm, TRUE); /* Read in ASYNC ! */
thePapMemStruct [theListSize].mFilePos = 0L;
thePapMemStruct [theListSize].mvRefNum = inVRefNum;
theListSize++;
return noErr;
} /* endof Papy3LoadFileMem */
/********************************************************************************/
/* */
/* Papy3SetMemPtr */
/* return : standard error message */
/* */
/********************************************************************************/
void Papy3SetMemPtr (PAPY_FILE inVRefNum, long inPos, long inSize, Ptr inPtr)
{
short i;
for (i = 0; i < theListSize; i++)
{
if (thePapMemStruct [i].mvRefNum == inVRefNum)
{
if (inPtr == NULL)
{
thePapMemStruct [i].mFilePos = 0L;
thePapMemStruct [i].mFileSize = 0L;
thePapMemStruct [i].mFileP = 0L;
thePapMemStruct [i].mvRefNum = 0L;
} /* if */
else
{
thePapMemStruct [i].mFilePos = inPos;
thePapMemStruct [i].mFileSize = inSize;
thePapMemStruct [i].mFileP = inPtr;
} /* else */
return;
} /* if ...inVRefNum */
} /* for */
DebugStr("\pNot found");
return;
} /* endof Papy3SetMemPtr */
/********************************************************************************/
/* */
/* Papy3GetMemPtr */
/* return : standard error message */
/* */
/********************************************************************************/
Ptr Papy3GetMemPtr (PAPY_FILE inVRefNum, long *ioPosP, long *ioSizeP, long *ActCount)
{
short i;
for (i = 0; i < theListSize; i++)
{
if (thePapMemStruct [i].mvRefNum == inVRefNum)
{
if (ioPosP) *ioPosP = thePapMemStruct [i].mFilePos;
if (ioSizeP) *ioSizeP = thePapMemStruct [i].mFileSize;
if (ActCount) *ActCount = thePapMemStruct [i].mPtrParm.ioActCount;
return thePapMemStruct [i].mFileP;
} /* if */
} /* for */
return 0L;
} /* endof Papy3GetMemPtr */
/********************************************************************************/
/* */
/* Papy3FLoadMem */
/* return : standard error message */
/* */
/********************************************************************************/
PapyShort Papy3FLoadMem (PAPY_FILE inVRefNum)
{
PapyShort theErr;
if (Papy3GetMemPtr (inVRefNum, 0L, 0L, 0L)) Debugger();
theErr = Papy3LoadFileMem (inVRefNum);
if (theErr) DebugStr ("\pPapy3LoadFileMem Err");
return theErr;
} /* endof Papy3FLoadMem */
/********************************************************************************/
/* */
/* Papy3FOpenMem : overwrites the standard open file function */
/* return : standard error message */
/* */
/********************************************************************************/
PapyShort
Papy3FOpenMem (char *inFilenameP, char inPermission, PAPY_FILE inVolumeNb, PAPY_FILE *outFp,
void *inFSSpecP)
/* permission r : read, w : write, a : read/write (all) */
{
PapyShort theErr;
FSSpec *theFSSpecP;
if (inFSSpecP == NULL)
{
/* create the FSSpec ptr */
theFSSpecP = (FSSpec *) emalloc3 ((PapyULong) sizeof (FSSpec));
/* fill in the FSSpec structure */
theFSSpecP->vRefNum = inVolumeNb;
theFSSpecP->parID = LMGetCurDirStore ();
strcpy ((char *) theFSSpecP->name, inFilenameP);
c2pstr ((char *) theFSSpecP->name);
} /* if */
else theFSSpecP = (FSSpec *) inFSSpecP;
/* open the file */
switch (inPermission)
{
case 'r' :
theErr = (PapyShort) FSpOpenDF (theFSSpecP, fsRdPerm, outFp);
break;
case 'w' :
theErr = (PapyShort) FSpOpenDF (theFSSpecP, fsWrPerm, outFp);
break;
case 'a' :
default :
theErr = (PapyShort) FSpOpenDF (theFSSpecP, fsRdWrPerm, outFp);
} /* switch */
if (Papy3GetMemPtr (*outFp, 0L, 0L, 0L)) Debugger();
theErr = Papy3LoadFileMem (*outFp);
if (theErr) DebugStr ("\pPapy3LoadFileMem Err");
if (inFSSpecP == NULL) efree3 (&theFSSpecP);
return theErr;
} /* endof Papy3FOpenMem */
/********************************************************************************/
/* */
/* Papy3FCloseMem : overwrites the standard close file function */
/* return : standard error message */
/* */
/********************************************************************************/
int
Papy3FCloseMem (PAPY_FILE *ioFp)
{
int theErr;
Ptr theFilePtr;
long theFilePos, theFileSize;
theFilePtr = Papy3GetMemPtr (*ioFp, &theFilePos, &theFileSize, 0L);
/*DisposePtr (theFilePtr);*/
efree3 ((void **) &theFilePtr);
theFilePtr = 0L;
theErr = FSClose (*ioFp);
Papy3SetMemPtr (*ioFp, theFilePos, theFileSize, theFilePtr);
return theErr;
} /* endof Papy3FCloseMem */
/********************************************************************************/
/* */
/* Papy3FReadMem : overwrites the standard read from file function */
/* return : error (0 if OK, negative value otherwise) */
/* */
/********************************************************************************/
PapyShort Papy3FReadMem (PAPY_FILE inFp, PapyULong *inBytesToReadP, PapyULong inNb,
void **inBufferP, Boolean inNoMemTransfer)
{
Ptr theFilePtr;
long theFilePos, theFileSize, theActCount;
/* dummy instruction... */
inNb = inNb;
theFilePtr = Papy3GetMemPtr (inFp, &theFilePos, &theFileSize, &theActCount);
/* Wait until the buffer is full to access this data */
while (theFilePos + *inBytesToReadP > theActCount) Papy3GetMemPtr (inFp, 0L, 0L, &theActCount);
if (inNoMemTransfer)
*inBufferP = theFilePtr + theFilePos;
else
BlockMoveData (theFilePtr + theFilePos, *inBufferP, *inBytesToReadP);
theFilePos += *inBytesToReadP;
if (theFilePos > theFileSize)
{
Debugger();
return EOF;
} /* if */
Papy3SetMemPtr (inFp, theFilePos, theFileSize, theFilePtr);
return noErr;
} /* endof Papy3FReadMem */
/********************************************************************************/
/* */
/* Papy3FSeekMem : Papyrus own build file pointer positioning function. */
/* return : standard error message */
/* */
/********************************************************************************/
int
Papy3FSeekMem (PAPY_FILE inFp, int inPosMode, PapyLong inOffset)
{
int theErr = noErr;
short theMacPosMode;
Ptr theFilePtr;
long theFilePos, theFileSize;
theFilePtr = Papy3GetMemPtr (inFp, &theFilePos, &theFileSize, 0L);
switch (inPosMode)
{
case SEEK_SET :
theMacPosMode = fsFromStart;
theFilePos = inOffset;
break;
case SEEK_CUR :
theMacPosMode = fsFromMark;
theFilePos += inOffset;
break;
case SEEK_END :
theMacPosMode = fsFromLEOF;
theFilePos = theFileSize + inOffset;
Debugger();
break;
} /* switch */
Papy3SetMemPtr (inFp, theFilePos, theFileSize, theFilePtr);
return theErr;
} /* endof Papy3FSeekMem */
/********************************************************************************/
/* */
/* Papy3FTellMem : Papyrus function to get the current position of the file*/
/* pointer. */
/* return : standard error message */
/* */
/********************************************************************************/
int
Papy3FTellMem (PAPY_FILE inFp, PapyLong *outFilePosP)
{
int theErr = noErr;
Ptr theFilePtr;
long theFilePos, theFileSize;
theFilePtr = Papy3GetMemPtr (inFp, &theFilePos, &theFileSize, 0L);
*outFilePosP = theFilePos;
return theErr;
} /* endof Papy3FTellMem */
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