src/common/datstrm.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        datstrm.cpp
   3 // Purpose:     Data stream classes
   4 // Author:      Guilhem Lavaux
   5 // Modified by: Mickael Gilabert
   6 // Created:     28/06/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Guilhem Lavaux
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  13 #pragma implementation "datstrm.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20   #pragma hdrstop
  21 #endif
  22
  23 #if wxUSE_STREAMS
  24
  25 #include "wx/datstrm.h"
  26
  27 // ---------------------------------------------------------------------------
  28 // wxDataInputStream
  29 // ---------------------------------------------------------------------------
  30
  31 #if wxUSE_UNICODE
  32 wxDataInputStream::wxDataInputStream(wxInputStream& s, wxMBConv& conv)
  33   : m_input(&s), m_be_order(FALSE), m_conv(conv)
  34 #else
  35 wxDataInputStream::wxDataInputStream(wxInputStream& s)
  36   : m_input(&s), m_be_order(FALSE)
  37 #endif
  38 {
  39 }
  40
  41 wxDataInputStream::~wxDataInputStream()
  42 {
  43 }
  44
  45 wxUint64 wxDataInputStream::Read64()
  46 {
  47   wxUint64 i64;
  48
  49   m_input->Read(&i64, 8);
  50
  51   if (m_be_order)
  52     return wxUINT64_SWAP_ON_LE(i64);
  53   else
  54     return wxUINT64_SWAP_ON_BE(i64);
  55 }
  56
  57 wxUint32 wxDataInputStream::Read32()
  58 {
  59   wxUint32 i32;
  60
  61   m_input->Read(&i32, 4);
  62
  63   if (m_be_order)
  64     return wxUINT32_SWAP_ON_LE(i32);
  65   else
  66     return wxUINT32_SWAP_ON_BE(i32);
  67 }
  68
  69 wxUint16 wxDataInputStream::Read16()
  70 {
  71   wxUint16 i16;
  72
  73   m_input->Read(&i16, 2);
  74
  75   if (m_be_order)
  76     return wxUINT16_SWAP_ON_LE(i16);
  77   else
  78     return wxUINT16_SWAP_ON_BE(i16);
  79 }
  80
  81 wxUint8 wxDataInputStream::Read8()
  82 {
  83   wxUint8 buf;
  84
  85   m_input->Read(&buf, 1);
  86   return (wxUint8)buf;
  87 }
  88
  89 // Must be at global scope for VC++ 5
  90 extern "C" double ConvertFromIeeeExtended(const unsigned char *bytes);
  91
  92 double wxDataInputStream::ReadDouble()
  93 {
  94 #if wxUSE_APPLE_IEEE
  95   char buf[10];
  96
  97   m_input->Read(buf, 10);
  98   return ConvertFromIeeeExtended((unsigned char *)buf);
  99 #else
 100   return 0.0;
 101 #endif
 102 }
 103
 104 wxString wxDataInputStream::ReadString()
 105 {
 106   size_t len;
 107
 108   len = Read32();
 109
 110   if (len > 0)
 111   {
 112 #if wxUSE_UNICODE
 113     wxCharBuffer tmp(len + 1);
 114     m_input->Read(tmp.data(), len);
 115     tmp.data()[len] = '\0';
 116     wxString ret(m_conv.cMB2WX(tmp.data()));
 117 #else
 118     wxString ret;
 119     m_input->Read( wxStringBuffer(ret, len), len);
 120 #endif
 121     return ret;
 122   }
 123   else
 124     return wxEmptyString;
 125 }
 126
 127 void wxDataInputStream::Read64(wxUint64 *buffer, size_t size)
 128 {
 129   m_input->Read(buffer, size * 8);
 130
 131   if (m_be_order)
 132   {
 133     for (wxUint32 i=0; i<size; i++)
 134     {
 135       wxUint64 v = wxUINT64_SWAP_ON_LE(*buffer);
 136       *(buffer++) = v;
 137     }
 138   }
 139   else
 140   {
 141     for (wxUint32 i=0; i<size; i++)
 142     {
 143       wxUint64 v = wxUINT64_SWAP_ON_BE(*buffer);
 144       *(buffer++) = v;
 145     }
 146   }
 147 }
 148
 149 void wxDataInputStream::Read32(wxUint32 *buffer, size_t size)
 150 {
 151   m_input->Read(buffer, size * 4);
 152
 153   if (m_be_order)
 154   {
 155     for (wxUint32 i=0; i<size; i++)
 156     {
 157       wxUint32 v = wxUINT32_SWAP_ON_LE(*buffer);
 158       *(buffer++) = v;
 159     }
 160   }
 161 else
 162   {
 163     for (wxUint32 i=0; i<size; i++)
 164     {
 165       wxUint32 v = wxUINT32_SWAP_ON_BE(*buffer);
 166       *(buffer++) = v;
 167     }
 168   }
 169 }
 170
 171 void wxDataInputStream::Read16(wxUint16 *buffer, size_t size)
 172 {
 173   m_input->Read(buffer, size * 2);
 174
 175   if (m_be_order)
 176   {
 177     for (wxUint32 i=0; i<size; i++)
 178     {
 179       wxUint16 v = wxUINT16_SWAP_ON_LE(*buffer);
 180       *(buffer++) = v;
 181     }
 182   }
 183   else
 184   {
 185     for (wxUint32 i=0; i<size; i++)
 186     {
 187       wxUint16 v = wxUINT16_SWAP_ON_BE(*buffer);
 188       *(buffer++) = v;
 189     }
 190   }
 191 }
 192
 193 void wxDataInputStream::Read8(wxUint8 *buffer, size_t size)
 194 {
 195   m_input->Read(buffer, size);
 196 }
 197
 198 void wxDataInputStream::ReadDouble(double *buffer, size_t size)
 199 {
 200   for (wxUint32 i=0; i<size; i++)
 201   {
 202     *(buffer++) = ReadDouble();
 203   }
 204 }
 205
 206 wxDataInputStream& wxDataInputStream::operator>>(wxString& s)
 207 {
 208   s = ReadString();
 209   return *this;
 210 }
 211
 212 wxDataInputStream& wxDataInputStream::operator>>(wxInt8& c)
 213 {
 214   c = (wxInt8)Read8();
 215   return *this;
 216 }
 217
 218 wxDataInputStream& wxDataInputStream::operator>>(wxInt16& i)
 219 {
 220   i = (wxInt16)Read16();
 221   return *this;
 222 }
 223
 224 wxDataInputStream& wxDataInputStream::operator>>(wxInt32& i)
 225 {
 226   i = (wxInt32)Read32();
 227   return *this;
 228 }
 229
 230 wxDataInputStream& wxDataInputStream::operator>>(wxUint8& c)
 231 {
 232   c = Read8();
 233   return *this;
 234 }
 235
 236 wxDataInputStream& wxDataInputStream::operator>>(wxUint16& i)
 237 {
 238   i = Read16();
 239   return *this;
 240 }
 241
 242 wxDataInputStream& wxDataInputStream::operator>>(wxUint32& i)
 243 {
 244   i = Read32();
 245   return *this;
 246 }
 247
 248 wxDataInputStream& wxDataInputStream::operator>>(wxUint64& i)
 249 {
 250   i = Read64();
 251   return *this;
 252 }
 253
 254 wxDataInputStream& wxDataInputStream::operator>>(double& i)
 255 {
 256   i = ReadDouble();
 257   return *this;
 258 }
 259
 260 wxDataInputStream& wxDataInputStream::operator>>(float& f)
 261 {
 262   f = (float)ReadDouble();
 263   return *this;
 264 }
 265
 266 // ---------------------------------------------------------------------------
 267 // wxDataOutputStream
 268 // ---------------------------------------------------------------------------
 269
 270 #if wxUSE_UNICODE
 271 wxDataOutputStream::wxDataOutputStream(wxOutputStream& s, wxMBConv& conv)
 272   : m_output(&s), m_be_order(FALSE), m_conv(conv)
 273 #else
 274 wxDataOutputStream::wxDataOutputStream(wxOutputStream& s)
 275   : m_output(&s), m_be_order(FALSE)
 276 #endif
 277 {
 278 }
 279
 280 wxDataOutputStream::~wxDataOutputStream()
 281 {
 282 }
 283
 284 void wxDataOutputStream::Write64(wxUint64 i)
 285 {
 286   wxUint64 i64;
 287
 288   if (m_be_order)
 289     i64 = wxUINT64_SWAP_ON_LE(i);
 290   else
 291     i64 = wxUINT64_SWAP_ON_BE(i);
 292   m_output->Write(&i64, 8);
 293 }
 294
 295 void wxDataOutputStream::Write32(wxUint32 i)
 296 {
 297   wxUint32 i32;
 298
 299   if (m_be_order)
 300     i32 = wxUINT32_SWAP_ON_LE(i);
 301   else
 302     i32 = wxUINT32_SWAP_ON_BE(i);
 303   m_output->Write(&i32, 4);
 304 }
 305
 306 void wxDataOutputStream::Write16(wxUint16 i)
 307 {
 308   wxUint16 i16;
 309
 310   if (m_be_order)
 311     i16 = wxUINT16_SWAP_ON_LE(i);
 312   else
 313     i16 = wxUINT16_SWAP_ON_BE(i);
 314
 315   m_output->Write(&i16, 2);
 316 }
 317
 318 void wxDataOutputStream::Write8(wxUint8 i)
 319 {
 320   m_output->Write(&i, 1);
 321 }
 322
 323 void wxDataOutputStream::WriteString(const wxString& string)
 324 {
 325 #if wxUSE_UNICODE
 326   const wxWX2MBbuf buf = string.mb_str(m_conv);
 327 #else
 328   const wxWX2MBbuf buf = string.mb_str();
 329 #endif
 330   size_t len = strlen(buf);
 331   Write32(len);
 332   if (len > 0)
 333       m_output->Write(buf, len);
 334 }
 335
 336 // Must be at global scope for VC++ 5
 337 extern "C" void ConvertToIeeeExtended(double num, unsigned char *bytes);
 338
 339 void wxDataOutputStream::WriteDouble(double d)
 340 {
 341   char buf[10];
 342
 343 #if wxUSE_APPLE_IEEE
 344   ConvertToIeeeExtended(d, (unsigned char *)buf);
 345 #else
 346 #ifndef __VMS__
 347 # pragma warning "wxDataOutputStream::WriteDouble() not using IeeeExtended - will not work!"
 348 #endif
 349    buf[0] = '\0';
 350 #endif
 351   m_output->Write(buf, 10);
 352 }
 353
 354 void wxDataOutputStream::Write64(const wxUint64 *buffer, size_t size)
 355 {
 356   if (m_be_order)
 357   {
 358     for (wxUint32 i=0; i<size ;i++)
 359     {
 360       wxUint64 i64 = wxUINT64_SWAP_ON_LE(*buffer);
 361       buffer++;
 362       m_output->Write(&i64, 8);
 363     }
 364   }
 365   else
 366   {
 367     for (wxUint32 i=0; i<size ;i++)
 368     {
 369       wxUint64 i64 = wxUINT64_SWAP_ON_BE(*buffer);
 370       buffer++;
 371       m_output->Write(&i64, 8);
 372     }
 373   }
 374 }
 375
 376 void wxDataOutputStream::Write32(const wxUint32 *buffer, size_t size)
 377 {
 378   if (m_be_order)
 379   {
 380     for (wxUint32 i=0; i<size ;i++)
 381     {
 382       wxUint32 i32 = wxUINT32_SWAP_ON_LE(*buffer);
 383       buffer++;
 384       m_output->Write(&i32, 4);
 385     }
 386   }
 387   else
 388   {
 389     for (wxUint32 i=0; i<size ;i++)
 390     {
 391       wxUint32 i32 = wxUINT32_SWAP_ON_BE(*buffer);
 392       buffer++;
 393       m_output->Write(&i32, 4);
 394     }
 395   }
 396 }
 397
 398 void wxDataOutputStream::Write16(const wxUint16 *buffer, size_t size)
 399 {
 400   if (m_be_order)
 401   {
 402     for (wxUint32 i=0; i<size ;i++)
 403     {
 404       wxUint16 i16 = wxUINT16_SWAP_ON_LE(*buffer);
 405       buffer++;
 406       m_output->Write(&i16, 2);
 407     }
 408   }
 409   else
 410   {
 411     for (wxUint32 i=0; i<size ;i++)
 412     {
 413       wxUint16 i16 = wxUINT16_SWAP_ON_BE(*buffer);
 414       buffer++;
 415       m_output->Write(&i16, 2);
 416     }
 417   }
 418 }
 419
 420 void wxDataOutputStream::Write8(const wxUint8 *buffer, size_t size)
 421 {
 422   m_output->Write(buffer, size);
 423 }
 424
 425 void wxDataOutputStream::WriteDouble(const double *buffer, size_t size)
 426 {
 427   for (wxUint32 i=0; i<size; i++)
 428   {
 429     WriteDouble(*(buffer++));
 430   }
 431 }
 432
 433 wxDataOutputStream& wxDataOutputStream::operator<<(const wxChar *string)
 434 {
 435   Write32(wxStrlen(string));
 436   m_output->Write((const char *)string, wxStrlen(string)*sizeof(wxChar));
 437   return *this;
 438 }
 439
 440 wxDataOutputStream& wxDataOutputStream::operator<<(const wxString& string)
 441 {
 442   WriteString(string);
 443   return *this;
 444 }
 445
 446 wxDataOutputStream& wxDataOutputStream::operator<<(wxInt8 c)
 447 {
 448   Write8((wxUint8)c);
 449   return *this;
 450 }
 451
 452 wxDataOutputStream& wxDataOutputStream::operator<<(wxInt16 i)
 453 {
 454   Write16((wxUint16)i);
 455   return *this;
 456 }
 457
 458 wxDataOutputStream& wxDataOutputStream::operator<<(wxInt32 i)
 459 {
 460   Write32((wxUint32)i);
 461   return *this;
 462 }
 463
 464 wxDataOutputStream& wxDataOutputStream::operator<<(wxUint8 c)
 465 {
 466   Write8(c);
 467   return *this;
 468 }
 469
 470 wxDataOutputStream& wxDataOutputStream::operator<<(wxUint16 i)
 471 {
 472   Write16(i);
 473   return *this;
 474 }
 475
 476 wxDataOutputStream& wxDataOutputStream::operator<<(wxUint32 i)
 477 {
 478   Write32(i);
 479   return *this;
 480 }
 481
 482 wxDataOutputStream& wxDataOutputStream::operator<<(wxUint64 i)
 483 {
 484   Write64(i);
 485   return *this;
 486 }
 487
 488 wxDataOutputStream& wxDataOutputStream::operator<<(double f)
 489 {
 490   WriteDouble(f);
 491   return *this;
 492 }
 493
 494 wxDataOutputStream& wxDataOutputStream::operator<<(float f)
 495 {
 496   WriteDouble((double)f);
 497   return *this;
 498 }
 499
 500 #endif
 501   // wxUSE_STREAMS
 502