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Merge branch 'V9_3_BR'
[modules/smesh.git] / src / MEDWrapper / MED_Factory.cxx
index 5ae8e43de77f39a2d62d29cbe1486682309e8fca..c6d62d253e4b7352de16efddc2031f3405429e90 100644 (file)
@@ -1,4 +1,4 @@
-// Copyright (C) 2007-2016  CEA/DEN, EDF R&D, OPEN CASCADE
+// Copyright (C) 2007-2019  CEA/DEN, EDF R&D, OPEN CASCADE
 //
 // Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
 #include "MED_Utilities.hxx"
 #include "MED_Wrapper.hxx"
 
+#include <Basics_Utils.hxx>
+
 #include <stdio.h>
 #include <errno.h>
 #include <sstream>
+#include <fstream>
 
 #include <med.h>
 extern "C"
@@ -41,6 +44,9 @@ extern "C"
 #include <windows.h>
 #endif
 
+// -------------------------------------------------------------------------------------------------------------------
+// --- MED file compatibility: write using a lower major version implies append on an empty file of the target version
+
 #define MED_MAJOR_EXPECTED 4
 #define MED_MINOR_EXPECTED 0
 #if MED_MAJOR_NUM != MED_MAJOR_EXPECTED
@@ -52,6 +58,46 @@ extern "C"
 #define MED_VERSIONS_APPEND_COMPATIBLE {40, 32, 33} // --- 10*major + minor (the 3rd digit, release, is not used here,
                                                     //                       med uses always the latest available)
                                                     // --- The first in the list should be the default: current version
+// --- empty med file content for the different MED versions with a different major.
+//     ==> correct accordingly CreateEmptyMEDFile method below!
+#define EMPTY_FILE_32 {0x89,0x48,0x44,0x46,0xd,0xa,0x1a,0xa,0x0,0x0,0x0,0x0,0x0,0x8,0x8,0x0,0x4,0x0,0x10,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xe8,0x7,0x0,0x0,0x0,0x0,0x0,0x0,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x60,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x1,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x88,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0xa8,0x2,0x0,0x0,0x0,0x0,0x0,0x0,0x1,0x0,0x1,0x0,0x1,0x0,0x0,0x0,0x18,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x11,0x0,0x10,0x0,0x0,0x0,0x0,0x0,0x88,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0xa8,0x2,0x0,0x0,0x0,0x0,0x0,0x0,0x54,0x52,0x45,0x45,0x0,0x0,0x1,0x0,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0xe0,0x5,0x0,0x0,0x0,0x0,0x0,0x0,0x8,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x48,0x45,0x41,0x50,0x0,0x0,0x0,0x0,0x58,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x18,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0xc8,0x2,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x49,0x4e,0x46,0x4f,0x53,0x5f,0x47,0x45,0x4e,0x45,0x52,0x41,0x4c,0x45,0x53,0x0,0x1,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x40,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x1,0x0,0x5,0x0,0x1,0x0,0x0,0x0,0x18,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x10,0x0,0x10,0x0,0x0,0x0,0x0,0x0,0x28,0x7,0x0,0x0,0x0,0x0,0x0,0x0,0xc0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x54,0x52,0x45,0x45,0x0,0x0,0x0,0x0,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0xe0,0x5,0x0,0x0,0x0,0x0,0x0,0x0,0x8,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0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+/* --- bytes hexa representation of MED file built in Python
+f= open('vide_321.med', 'rb')
+data=f.read()
+ba=bytearray(data)
+a=""
+for i in ba:
+  a+=hex(i)
+  a+=','
+print a
+*/
+
+//! internal use: fileName and version must be checked before call
+bool CreateEmptyMEDFile(const std::string& fileName, int version)
+{
+  MESSAGE("create an empty med file of the right version, for append " << version);
+  static const unsigned char empty_32[] = EMPTY_FILE_32;
+  static const unsigned char empty_33[] = EMPTY_FILE_33;
+#ifdef WIN32
+#ifdef UNICODE
+  std::wstring aFilename = Kernel_Utils::utf8_decode_s(fileName);
+#else
+  std::wstring aFilename = fileName;
+#endif
+  std::ofstream ofs(aFilename, std::ios::binary);
+#else
+  std::ofstream ofs(fileName);
+#endif
+  if (version == 32)
+    ofs.write(reinterpret_cast<const char *>(empty_32),sizeof(empty_32));
+  else if (version == 33)
+    ofs.write(reinterpret_cast<const char *>(empty_33),sizeof(empty_33));
+  ofs.flush();
+  ofs.close();
+  return true;
+}
+// -------------------------------------------------------------------------------------------------------------------
 
 namespace MED
 {
@@ -59,14 +105,18 @@ namespace MED
   {
 #ifdef WIN32
 #ifdef UNICODE
-       size_t length = strlen(fileName.c_str()) + sizeof(char);
-       wchar_t* path = new wchar_t[length];
-       memset(path, '\0', length);
-       mbstowcs(path, fileName.c_str(), length);
+    int size_needed = MultiByteToWideChar(CP_UTF8, 0, fileName.c_str(), strlen(fileName.c_str()), NULL, 0);
+    wchar_t* path = new wchar_t[size_needed + 1];
+    MultiByteToWideChar(CP_UTF8, 0, fileName.c_str(), strlen(fileName.c_str()), path, size_needed);
+    path[size_needed] = '\0';
 #else
-       cosnt char* path = xmlPath.c_str();
+    cosnt char* path = xmlPath.c_str();
+#endif
+    bool res = (GetFileAttributes(path) != INVALID_FILE_ATTRIBUTES);
+#ifdef UNICODE
+    delete path;
 #endif
-    return (GetFileAttributes(path) != INVALID_FILE_ATTRIBUTES);
+    return res;
 #else
     return (access(fileName.c_str(), F_OK) == 0);
 #endif
@@ -111,7 +161,7 @@ namespace MED
               ok = true;
             else {
               int medVersion = 10*major + minor;
-              for (int ii=0; ii < sizeof(medVersionsOK)/sizeof(int); ii++)
+              for (size_t ii=0; ii < sizeof(medVersionsOK)/sizeof(int); ii++)
                 if (medVersionsOK[ii] == medVersion) {
                   ok =true;
                   break;
@@ -161,13 +211,46 @@ namespace MED
     if (!CheckCompatibility(fileName)) {
       EXCEPTION(std::runtime_error, "Cannot open file '"<<fileName<<"'.");
     }
-    return new MED::TWrapper(fileName);
+    return new MED::TWrapper(fileName, false);
   }
 
-  PWrapper CrWrapperW(const std::string& fileName, int theMinor)
+  PWrapper CrWrapperW(const std::string& fileName, int theVersion)
   {
+    bool isCreated = false;
     if (!CheckCompatibility(fileName, true))
+    {
       remove(fileName.c_str());
-    return new MED::TWrapper(fileName, theMinor);
+      isCreated = true;
+    }
+    int minor = -1;
+    if (isCreated)
+    {
+      med_int wantedMajor = MED_MAJOR_NUM;
+      med_int wantedMinor = MED_MINOR_NUM;
+      if (theVersion > 0)
+      {
+        wantedMajor = theVersion/10;
+        wantedMinor = theVersion%10;
+      }
+      if (wantedMajor == MED_MAJOR_NUM) // the med file will be actually created
+      {
+        if (wantedMinor < MED_MINOR_NUM)
+          minor = wantedMinor;
+      }
+      else                              // an empty existing med file of the right version will be used for append
+      {
+        int medVersionsOK[] = MED_VERSIONS_APPEND_COMPATIBLE;
+        bool isVersionOK = false;
+        for (size_t ii=0; ii < sizeof(medVersionsOK)/sizeof(int); ii++)
+          if (medVersionsOK[ii] == theVersion)
+          {
+            isVersionOK =true;
+            break;
+          }
+        if (isVersionOK)              // copy an empty existing med file of the right version, for append
+          CreateEmptyMEDFile(fileName, theVersion);
+      }
+    }
+    return new MED::TWrapper(fileName, true, minor);
   }
 }