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