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1/////////////////////////////////////////////////////////////////////////////
2// Name: src/common/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// For compilers that support precompilation, includes "wx.h".
13#include "wx/wxprec.h"
14
15#ifdef __BORLANDC__
16 #pragma hdrstop
17#endif
18
19#if wxUSE_STREAMS
20
21#include "wx/datstrm.h"
22
23#ifndef WX_PRECOMP
24 #include "wx/math.h"
25#endif //WX_PRECOMP
26
27// ---------------------------------------------------------------------------
28// wxDataInputStream
29// ---------------------------------------------------------------------------
30
31#if wxUSE_UNICODE
32wxDataInputStream::wxDataInputStream(wxInputStream& s, const wxMBConv& conv)
33 : m_input(&s), m_be_order(false), m_conv(conv.Clone())
34#else
35wxDataInputStream::wxDataInputStream(wxInputStream& s)
36 : m_input(&s), m_be_order(false)
37#endif
38{
39}
40
41wxDataInputStream::~wxDataInputStream()
42{
43#if wxUSE_UNICODE
44 delete m_conv;
45#endif // wxUSE_UNICODE
46}
47
48#if wxUSE_UNICODE
49void wxDataInputStream::SetConv( const wxMBConv &conv )
50{
51 delete m_conv;
52 m_conv = conv.Clone();
53}
54#endif
55
56#if wxHAS_INT64
57wxUint64 wxDataInputStream::Read64()
58{
59 wxUint64 tmp;
60 Read64(&tmp, 1);
61 return tmp;
62}
63#endif // wxHAS_INT64
64
65wxUint32 wxDataInputStream::Read32()
66{
67 wxUint32 i32;
68
69 m_input->Read(&i32, 4);
70
71 if (m_be_order)
72 return wxUINT32_SWAP_ON_LE(i32);
73 else
74 return wxUINT32_SWAP_ON_BE(i32);
75}
76
77wxUint16 wxDataInputStream::Read16()
78{
79 wxUint16 i16;
80
81 m_input->Read(&i16, 2);
82
83 if (m_be_order)
84 return wxUINT16_SWAP_ON_LE(i16);
85 else
86 return wxUINT16_SWAP_ON_BE(i16);
87}
88
89wxUint8 wxDataInputStream::Read8()
90{
91 wxUint8 buf;
92
93 m_input->Read(&buf, 1);
94 return (wxUint8)buf;
95}
96
97double wxDataInputStream::ReadDouble()
98{
99#if wxUSE_APPLE_IEEE
100 char buf[10];
101
102 m_input->Read(buf, 10);
103 return wxConvertFromIeeeExtended((const wxInt8 *)buf);
104#else
105 return 0.0;
106#endif
107}
108
109wxString wxDataInputStream::ReadString()
110{
111 wxString ret;
112
113 const size_t len = Read32();
114 if ( len > 0 )
115 {
116#if wxUSE_UNICODE
117 wxCharBuffer tmp(len + 1);
118 if ( tmp )
119 {
120 m_input->Read(tmp.data(), len);
121 tmp.data()[len] = '\0';
122 ret = m_conv->cMB2WX(tmp.data());
123 }
124#else
125 wxStringBuffer buf(ret, len);
126 if ( buf )
127 m_input->Read(buf, len);
128#endif
129 }
130
131 return ret;
132}
133
134#if wxUSE_LONGLONG
135
136template <class T>
137static
138void DoReadLL(T *buffer, size_t size, wxInputStream *input, bool be_order)
139{
140 typedef T DataType;
141 unsigned char *pchBuffer = new unsigned char[size * 8];
142 // TODO: Check for overflow when size is of type uint and is > than 512m
143 input->Read(pchBuffer, size * 8);
144 size_t idx_base = 0;
145 if ( be_order )
146 {
147 for ( size_t uiIndex = 0; uiIndex != size; ++uiIndex )
148 {
149 buffer[uiIndex] = 0l;
150 for ( unsigned ui = 0; ui != 8; ++ui )
151 {
152 buffer[uiIndex] = buffer[uiIndex] * 256l +
153 DataType((unsigned long) pchBuffer[idx_base + ui]);
154 }
155
156 idx_base += 8;
157 }
158 }
159 else // little endian
160 {
161 for ( size_t uiIndex=0; uiIndex!=size; ++uiIndex )
162 {
163 buffer[uiIndex] = 0l;
164 for ( unsigned ui=0; ui!=8; ++ui )
165 buffer[uiIndex] = buffer[uiIndex] * 256l +
166 DataType((unsigned long) pchBuffer[idx_base + 7 - ui]);
167 idx_base += 8;
168 }
169 }
170 delete[] pchBuffer;
171}
172
173template <class T>
174static void DoWriteLL(const T *buffer, size_t size, wxOutputStream *output, bool be_order)
175{
176 typedef T DataType;
177 unsigned char *pchBuffer = new unsigned char[size * 8];
178 size_t idx_base = 0;
179 if ( be_order )
180 {
181 for ( size_t uiIndex = 0; uiIndex != size; ++uiIndex )
182 {
183 DataType i64 = buffer[uiIndex];
184 for ( unsigned ui = 0; ui != 8; ++ui )
185 {
186 pchBuffer[idx_base + 7 - ui] =
187 (unsigned char) (i64.GetLo() & 255l);
188 i64 >>= 8l;
189 }
190
191 idx_base += 8;
192 }
193 }
194 else // little endian
195 {
196 for ( size_t uiIndex=0; uiIndex != size; ++uiIndex )
197 {
198 DataType i64 = buffer[uiIndex];
199 for (unsigned ui=0; ui!=8; ++ui)
200 {
201 pchBuffer[idx_base + ui] =
202 (unsigned char) (i64.GetLo() & 255l);
203 i64 >>= 8l;
204 }
205
206 idx_base += 8;
207 }
208 }
209
210 // TODO: Check for overflow when size is of type uint and is > than 512m
211 output->Write(pchBuffer, size * 8);
212 delete[] pchBuffer;
213}
214
215#endif // wxUSE_LONGLONG
216
217#ifdef wxLongLong_t
218
219template <class T>
220static
221void DoReadI64(T *buffer, size_t size, wxInputStream *input, bool be_order)
222{
223 typedef T DataType;
224 unsigned char *pchBuffer = (unsigned char*) buffer;
225 // TODO: Check for overflow when size is of type uint and is > than 512m
226 input->Read(pchBuffer, size * 8);
227 if ( be_order )
228 {
229 for ( wxUint32 i = 0; i < size; i++ )
230 {
231 DataType v = wxUINT64_SWAP_ON_LE(*buffer);
232 *(buffer++) = v;
233 }
234 }
235 else // little endian
236 {
237 for ( wxUint32 i=0; i<size; i++ )
238 {
239 DataType v = wxUINT64_SWAP_ON_BE(*buffer);
240 *(buffer++) = v;
241 }
242 }
243}
244
245template <class T>
246static
247void DoWriteI64(const T *buffer, size_t size, wxOutputStream *output, bool be_order)
248{
249 typedef T DataType;
250 if ( be_order )
251 {
252 for ( size_t i = 0; i < size; i++ )
253 {
254 DataType i64 = wxUINT64_SWAP_ON_LE(*buffer);
255 buffer++;
256 output->Write(&i64, 8);
257 }
258 }
259 else // little endian
260 {
261 for ( size_t i=0; i < size; i++ )
262 {
263 DataType i64 = wxUINT64_SWAP_ON_BE(*buffer);
264 buffer++;
265 output->Write(&i64, 8);
266 }
267 }
268}
269
270#endif // wxLongLong_t
271
272
273#if wxHAS_INT64
274void wxDataInputStream::Read64(wxUint64 *buffer, size_t size)
275{
276#ifndef wxLongLong_t
277 DoReadLL(buffer, size, m_input, m_be_order);
278#else
279 DoReadI64(buffer, size, m_input, m_be_order);
280#endif
281}
282
283void wxDataInputStream::Read64(wxInt64 *buffer, size_t size)
284{
285#ifndef wxLongLong_t
286 DoReadLL(buffer, size, m_input, m_be_order);
287#else
288 DoReadI64(buffer, size, m_input, m_be_order);
289#endif
290}
291#endif // wxHAS_INT64
292
293#if defined(wxLongLong_t) && wxUSE_LONGLONG
294void wxDataInputStream::Read64(wxULongLong *buffer, size_t size)
295{
296 DoReadLL(buffer, size, m_input, m_be_order);
297}
298
299void wxDataInputStream::Read64(wxLongLong *buffer, size_t size)
300{
301 DoReadLL(buffer, size, m_input, m_be_order);
302}
303#endif // wxLongLong_t
304
305#if wxUSE_LONGLONG
306void wxDataInputStream::ReadLL(wxULongLong *buffer, size_t size)
307{
308 DoReadLL(buffer, size, m_input, m_be_order);
309}
310
311void wxDataInputStream::ReadLL(wxLongLong *buffer, size_t size)
312{
313 DoReadLL(buffer, size, m_input, m_be_order);
314}
315
316wxLongLong wxDataInputStream::ReadLL(void)
317{
318 wxLongLong ll;
319 DoReadLL(&ll, (size_t)1, m_input, m_be_order);
320 return ll;
321}
322#endif // wxUSE_LONGLONG
323
324void wxDataInputStream::Read32(wxUint32 *buffer, size_t size)
325{
326 m_input->Read(buffer, size * 4);
327
328 if (m_be_order)
329 {
330 for (wxUint32 i=0; i<size; i++)
331 {
332 wxUint32 v = wxUINT32_SWAP_ON_LE(*buffer);
333 *(buffer++) = v;
334 }
335 }
336 else
337 {
338 for (wxUint32 i=0; i<size; i++)
339 {
340 wxUint32 v = wxUINT32_SWAP_ON_BE(*buffer);
341 *(buffer++) = v;
342 }
343 }
344}
345
346void wxDataInputStream::Read16(wxUint16 *buffer, size_t size)
347{
348 m_input->Read(buffer, size * 2);
349
350 if (m_be_order)
351 {
352 for (wxUint32 i=0; i<size; i++)
353 {
354 wxUint16 v = wxUINT16_SWAP_ON_LE(*buffer);
355 *(buffer++) = v;
356 }
357 }
358 else
359 {
360 for (wxUint32 i=0; i<size; i++)
361 {
362 wxUint16 v = wxUINT16_SWAP_ON_BE(*buffer);
363 *(buffer++) = v;
364 }
365 }
366}
367
368void wxDataInputStream::Read8(wxUint8 *buffer, size_t size)
369{
370 m_input->Read(buffer, size);
371}
372
373void wxDataInputStream::ReadDouble(double *buffer, size_t size)
374{
375 for (wxUint32 i=0; i<size; i++)
376 {
377 *(buffer++) = ReadDouble();
378 }
379}
380
381wxDataInputStream& wxDataInputStream::operator>>(wxString& s)
382{
383 s = ReadString();
384 return *this;
385}
386
387wxDataInputStream& wxDataInputStream::operator>>(wxInt8& c)
388{
389 c = (wxInt8)Read8();
390 return *this;
391}
392
393wxDataInputStream& wxDataInputStream::operator>>(wxInt16& i)
394{
395 i = (wxInt16)Read16();
396 return *this;
397}
398
399wxDataInputStream& wxDataInputStream::operator>>(wxInt32& i)
400{
401 i = (wxInt32)Read32();
402 return *this;
403}
404
405wxDataInputStream& wxDataInputStream::operator>>(wxUint8& c)
406{
407 c = Read8();
408 return *this;
409}
410
411wxDataInputStream& wxDataInputStream::operator>>(wxUint16& i)
412{
413 i = Read16();
414 return *this;
415}
416
417wxDataInputStream& wxDataInputStream::operator>>(wxUint32& i)
418{
419 i = Read32();
420 return *this;
421}
422
423#if wxHAS_INT64
424wxDataInputStream& wxDataInputStream::operator>>(wxUint64& i)
425{
426 i = Read64();
427 return *this;
428}
429
430wxDataInputStream& wxDataInputStream::operator>>(wxInt64& i)
431{
432 i = Read64();
433 return *this;
434}
435#endif // wxHAS_INT64
436
437#if defined(wxLongLong_t) && wxUSE_LONGLONG
438wxDataInputStream& wxDataInputStream::operator>>(wxULongLong& i)
439{
440 i = ReadLL();
441 return *this;
442}
443
444wxDataInputStream& wxDataInputStream::operator>>(wxLongLong& i)
445{
446 i = ReadLL();
447 return *this;
448}
449#endif // wxLongLong_t
450
451wxDataInputStream& wxDataInputStream::operator>>(double& i)
452{
453 i = ReadDouble();
454 return *this;
455}
456
457wxDataInputStream& wxDataInputStream::operator>>(float& f)
458{
459 f = (float)ReadDouble();
460 return *this;
461}
462
463// ---------------------------------------------------------------------------
464// wxDataOutputStream
465// ---------------------------------------------------------------------------
466
467#if wxUSE_UNICODE
468wxDataOutputStream::wxDataOutputStream(wxOutputStream& s, const wxMBConv& conv)
469 : m_output(&s), m_be_order(false), m_conv(conv.Clone())
470#else
471wxDataOutputStream::wxDataOutputStream(wxOutputStream& s)
472 : m_output(&s), m_be_order(false)
473#endif
474{
475}
476
477wxDataOutputStream::~wxDataOutputStream()
478{
479#if wxUSE_UNICODE
480 delete m_conv;
481#endif // wxUSE_UNICODE
482}
483
484#if wxUSE_UNICODE
485void wxDataOutputStream::SetConv( const wxMBConv &conv )
486{
487 delete m_conv;
488 m_conv = conv.Clone();
489}
490#endif
491
492#if wxHAS_INT64
493void wxDataOutputStream::Write64(wxUint64 i)
494{
495 Write64(&i, 1);
496}
497
498void wxDataOutputStream::Write64(wxInt64 i)
499{
500 Write64(&i, 1);
501}
502#endif // wxHAS_INT64
503
504void wxDataOutputStream::Write32(wxUint32 i)
505{
506 wxUint32 i32;
507
508 if (m_be_order)
509 i32 = wxUINT32_SWAP_ON_LE(i);
510 else
511 i32 = wxUINT32_SWAP_ON_BE(i);
512 m_output->Write(&i32, 4);
513}
514
515void wxDataOutputStream::Write16(wxUint16 i)
516{
517 wxUint16 i16;
518
519 if (m_be_order)
520 i16 = wxUINT16_SWAP_ON_LE(i);
521 else
522 i16 = wxUINT16_SWAP_ON_BE(i);
523
524 m_output->Write(&i16, 2);
525}
526
527void wxDataOutputStream::Write8(wxUint8 i)
528{
529 m_output->Write(&i, 1);
530}
531
532void wxDataOutputStream::WriteString(const wxString& string)
533{
534#if wxUSE_UNICODE
535 const wxWX2MBbuf buf = string.mb_str(*m_conv);
536#else
537 const wxWX2MBbuf buf = string.mb_str();
538#endif
539 size_t len = strlen(buf);
540 Write32(len);
541 if (len > 0)
542 m_output->Write(buf, len);
543}
544
545void wxDataOutputStream::WriteDouble(double d)
546{
547 char buf[10];
548
549#if wxUSE_APPLE_IEEE
550 wxConvertToIeeeExtended(d, (wxInt8 *)buf);
551#else
552 wxUnusedVar(d);
553#if !defined(__VMS__) && !defined(__GNUG__)
554#ifdef _MSC_VER
555# pragma message("wxDataOutputStream::WriteDouble() not using IeeeExtended - will not work!")
556#else
557# pragma warning "wxDataOutputStream::WriteDouble() not using IeeeExtended - will not work!"
558#endif
559#endif
560 buf[0] = '\0';
561#endif
562 m_output->Write(buf, 10);
563}
564
565#if wxHAS_INT64
566void wxDataOutputStream::Write64(const wxUint64 *buffer, size_t size)
567{
568#ifndef wxLongLong_t
569 DoWriteLL(buffer, size, m_output, m_be_order);
570#else
571 DoWriteI64(buffer, size, m_output, m_be_order);
572#endif
573}
574
575void wxDataOutputStream::Write64(const wxInt64 *buffer, size_t size)
576{
577#ifndef wxLongLong_t
578 DoWriteLL(buffer, size, m_output, m_be_order);
579#else
580 DoWriteI64(buffer, size, m_output, m_be_order);
581#endif
582}
583#endif // wxHAS_INT64
584
585#if defined(wxLongLong_t) && wxUSE_LONGLONG
586void wxDataOutputStream::Write64(const wxULongLong *buffer, size_t size)
587{
588 DoWriteLL(buffer, size, m_output, m_be_order);
589}
590
591void wxDataOutputStream::Write64(const wxLongLong *buffer, size_t size)
592{
593 DoWriteLL(buffer, size, m_output, m_be_order);
594}
595#endif // wxLongLong_t
596
597#if wxUSE_LONGLONG
598void wxDataOutputStream::WriteLL(const wxULongLong *buffer, size_t size)
599{
600 DoWriteLL(buffer, size, m_output, m_be_order);
601}
602
603void wxDataOutputStream::WriteLL(const wxLongLong *buffer, size_t size)
604{
605 DoWriteLL(buffer, size, m_output, m_be_order);
606}
607
608void wxDataOutputStream::WriteLL(const wxLongLong &ll)
609{
610 WriteLL(&ll, 1);
611}
612
613void wxDataOutputStream::WriteLL(const wxULongLong &ll)
614{
615 WriteLL(&ll, 1);
616}
617#endif // wxUSE_LONGLONG
618
619void wxDataOutputStream::Write32(const wxUint32 *buffer, size_t size)
620{
621 if (m_be_order)
622 {
623 for (wxUint32 i=0; i<size ;i++)
624 {
625 wxUint32 i32 = wxUINT32_SWAP_ON_LE(*buffer);
626 buffer++;
627 m_output->Write(&i32, 4);
628 }
629 }
630 else
631 {
632 for (wxUint32 i=0; i<size ;i++)
633 {
634 wxUint32 i32 = wxUINT32_SWAP_ON_BE(*buffer);
635 buffer++;
636 m_output->Write(&i32, 4);
637 }
638 }
639}
640
641void wxDataOutputStream::Write16(const wxUint16 *buffer, size_t size)
642{
643 if (m_be_order)
644 {
645 for (wxUint32 i=0; i<size ;i++)
646 {
647 wxUint16 i16 = wxUINT16_SWAP_ON_LE(*buffer);
648 buffer++;
649 m_output->Write(&i16, 2);
650 }
651 }
652 else
653 {
654 for (wxUint32 i=0; i<size ;i++)
655 {
656 wxUint16 i16 = wxUINT16_SWAP_ON_BE(*buffer);
657 buffer++;
658 m_output->Write(&i16, 2);
659 }
660 }
661}
662
663void wxDataOutputStream::Write8(const wxUint8 *buffer, size_t size)
664{
665 m_output->Write(buffer, size);
666}
667
668void wxDataOutputStream::WriteDouble(const double *buffer, size_t size)
669{
670 for (wxUint32 i=0; i<size; i++)
671 {
672 WriteDouble(*(buffer++));
673 }
674}
675
676wxDataOutputStream& wxDataOutputStream::operator<<(const wxString& string)
677{
678 WriteString(string);
679 return *this;
680}
681
682wxDataOutputStream& wxDataOutputStream::operator<<(wxInt8 c)
683{
684 Write8((wxUint8)c);
685 return *this;
686}
687
688wxDataOutputStream& wxDataOutputStream::operator<<(wxInt16 i)
689{
690 Write16((wxUint16)i);
691 return *this;
692}
693
694wxDataOutputStream& wxDataOutputStream::operator<<(wxInt32 i)
695{
696 Write32((wxUint32)i);
697 return *this;
698}
699
700wxDataOutputStream& wxDataOutputStream::operator<<(wxUint8 c)
701{
702 Write8(c);
703 return *this;
704}
705
706wxDataOutputStream& wxDataOutputStream::operator<<(wxUint16 i)
707{
708 Write16(i);
709 return *this;
710}
711
712wxDataOutputStream& wxDataOutputStream::operator<<(wxUint32 i)
713{
714 Write32(i);
715 return *this;
716}
717
718#if wxHAS_INT64
719wxDataOutputStream& wxDataOutputStream::operator<<(wxUint64 i)
720{
721 Write64(i);
722 return *this;
723}
724
725wxDataOutputStream& wxDataOutputStream::operator<<(wxInt64 i)
726{
727 Write64(i);
728 return *this;
729}
730#endif // wxHAS_INT64
731
732#if defined(wxLongLong_t) && wxUSE_LONGLONG
733wxDataOutputStream& wxDataOutputStream::operator<<(const wxULongLong &i)
734{
735 WriteLL(i);
736 return *this;
737}
738
739wxDataOutputStream& wxDataOutputStream::operator<<(const wxLongLong &i)
740{
741 WriteLL(i);
742 return *this;
743}
744#endif // wxLongLong_t
745
746wxDataOutputStream& wxDataOutputStream::operator<<(double f)
747{
748 WriteDouble(f);
749 return *this;
750}
751
752wxDataOutputStream& wxDataOutputStream::operator<<(float f)
753{
754 WriteDouble((double)f);
755 return *this;
756}
757
758#endif
759 // wxUSE_STREAMS