X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/1e3eca9d3782d5eed5ba8d8019548c9f82523517..0f5378d414cb68caaa535199c1af12dec1720c3d:/src/common/datstrm.cpp diff --git a/src/common/datstrm.cpp b/src/common/datstrm.cpp index 771d9c32d2..c55f2134fb 100644 --- a/src/common/datstrm.cpp +++ b/src/common/datstrm.cpp @@ -1,18 +1,14 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: datstrm.cpp +// Name: src/common/datstrm.cpp // Purpose: Data stream classes // Author: Guilhem Lavaux -// Modified by: +// Modified by: Mickael Gilabert // Created: 28/06/98 // RCS-ID: $Id$ -// Copyright: (c) Guilhem Lavaux -// Licence: wxWindows license +// Copyright: (c) Guilhem Lavaux +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ -#pragma implementation "datstrm.h" -#endif - // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" @@ -24,142 +20,833 @@ #include "wx/datstrm.h" +#ifndef WX_PRECOMP + #include "wx/math.h" +#endif //WX_PRECOMP + +namespace +{ + +// helper unions used to swap bytes of floats and doubles +union Float32Data +{ + wxFloat32 f; + wxUint32 i; +}; + +union Float64Data +{ + wxFloat64 f; + wxUint32 i[2]; +}; + +} // anonymous namespace + +// ---------------------------------------------------------------------------- +// wxDataStreamBase +// ---------------------------------------------------------------------------- + +wxDataStreamBase::wxDataStreamBase(const wxMBConv& conv) +#if wxUSE_UNICODE + : m_conv(conv.Clone()) +#endif // wxUSE_UNICODE +{ + // It is unused in non-Unicode build, so suppress a warning there. + wxUnusedVar(conv); + + m_be_order = false; + + // For compatibility with the existing data files, we use extended + // precision if it is available, i.e. if wxUSE_APPLE_IEEE is on. +#if wxUSE_APPLE_IEEE + m_useExtendedPrecision = true; +#endif // wxUSE_APPLE_IEEE +} + +#if wxUSE_UNICODE +void wxDataStreamBase::SetConv( const wxMBConv &conv ) +{ + delete m_conv; + m_conv = conv.Clone(); +} +#endif + +wxDataStreamBase::~wxDataStreamBase() +{ +#if wxUSE_UNICODE + delete m_conv; +#endif // wxUSE_UNICODE +} + // --------------------------------------------------------------------------- // wxDataInputStream // --------------------------------------------------------------------------- -wxDataInputStream::wxDataInputStream(wxInputStream& s) - : wxFilterInputStream(s) +wxDataInputStream::wxDataInputStream(wxInputStream& s, const wxMBConv& conv) + : wxDataStreamBase(conv), + m_input(&s) { } -wxDataInputStream::~wxDataInputStream() +#if wxHAS_INT64 +wxUint64 wxDataInputStream::Read64() { + wxUint64 tmp; + Read64(&tmp, 1); + return tmp; } +#endif // wxHAS_INT64 wxUint32 wxDataInputStream::Read32() { - char buf[4]; + wxUint32 i32; - Read(buf, 4); + m_input->Read(&i32, 4); - return (wxUint32)buf[0] | - ((wxUint32)buf[1] << 8) | - ((wxUint32)buf[2] << 16) | - ((wxUint32)buf[3] << 24); + if (m_be_order) + return wxUINT32_SWAP_ON_LE(i32); + else + return wxUINT32_SWAP_ON_BE(i32); } wxUint16 wxDataInputStream::Read16() { - char buf[2]; + wxUint16 i16; - Read(buf, 2); + m_input->Read(&i16, 2); - return (wxUint16)buf[0] | - ((wxUint16)buf[1] << 8); + if (m_be_order) + return wxUINT16_SWAP_ON_LE(i16); + else + return wxUINT16_SWAP_ON_BE(i16); } wxUint8 wxDataInputStream::Read8() { wxUint8 buf; - Read((char *)&buf, 1); + m_input->Read(&buf, 1); return (wxUint8)buf; } -// Must be at global scope for VC++ 5 -extern "C" double ConvertFromIeeeExtended(const unsigned char *bytes); - double wxDataInputStream::ReadDouble() { #if wxUSE_APPLE_IEEE - char buf[10]; + if ( m_useExtendedPrecision ) + { + char buf[10]; + + m_input->Read(buf, 10); + return wxConvertFromIeeeExtended((const wxInt8 *)buf); + } + else +#endif // wxUSE_APPLE_IEEE + { + Float64Data floatData; + + if ( m_be_order == (wxBYTE_ORDER == wxBIG_ENDIAN) ) + { + floatData.i[0] = Read32(); + floatData.i[1] = Read32(); + } + else + { + floatData.i[1] = Read32(); + floatData.i[0] = Read32(); + } + + return static_cast<double>(floatData.f); + } +} + +float wxDataInputStream::ReadFloat() +{ +#if wxUSE_APPLE_IEEE + if ( m_useExtendedPrecision ) + { + return (float)ReadDouble(); + } + else +#endif // wxUSE_APPLE_IEEE + { + Float32Data floatData; + + floatData.i = Read32(); + return static_cast<float>(floatData.f); + } +} - Read(buf, 10); - return ConvertFromIeeeExtended((unsigned char *)buf); +wxString wxDataInputStream::ReadString() +{ + wxString ret; + + const size_t len = Read32(); + if ( len > 0 ) + { +#if wxUSE_UNICODE + wxCharBuffer tmp(len); + if ( tmp ) + { + m_input->Read(tmp.data(), len); + ret = m_conv->cMB2WX(tmp.data()); + } #else - return 0.0; + wxStringBuffer buf(ret, len); + if ( buf ) + m_input->Read(buf, len); #endif + } + + return ret; } -wxString wxDataInputStream::ReadString() +#if wxUSE_LONGLONG + +template <class T> +static +void DoReadLL(T *buffer, size_t size, wxInputStream *input, bool be_order) { - wxString wx_string; - char *string; - unsigned long len; + typedef T DataType; + unsigned char *pchBuffer = new unsigned char[size * 8]; + // TODO: Check for overflow when size is of type uint and is > than 512m + input->Read(pchBuffer, size * 8); + size_t idx_base = 0; + if ( be_order ) + { + for ( size_t uiIndex = 0; uiIndex != size; ++uiIndex ) + { + buffer[uiIndex] = 0l; + for ( unsigned ui = 0; ui != 8; ++ui ) + { + buffer[uiIndex] = buffer[uiIndex] * 256l + + DataType((unsigned long) pchBuffer[idx_base + ui]); + } + + idx_base += 8; + } + } + else // little endian + { + for ( size_t uiIndex=0; uiIndex!=size; ++uiIndex ) + { + buffer[uiIndex] = 0l; + for ( unsigned ui=0; ui!=8; ++ui ) + buffer[uiIndex] = buffer[uiIndex] * 256l + + DataType((unsigned long) pchBuffer[idx_base + 7 - ui]); + idx_base += 8; + } + } + delete[] pchBuffer; +} - len = Read32(); - string = new char[len+1]; +template <class T> +static void DoWriteLL(const T *buffer, size_t size, wxOutputStream *output, bool be_order) +{ + typedef T DataType; + unsigned char *pchBuffer = new unsigned char[size * 8]; + size_t idx_base = 0; + if ( be_order ) + { + for ( size_t uiIndex = 0; uiIndex != size; ++uiIndex ) + { + DataType i64 = buffer[uiIndex]; + for ( unsigned ui = 0; ui != 8; ++ui ) + { + pchBuffer[idx_base + 7 - ui] = + (unsigned char) (i64.GetLo() & 255l); + i64 >>= 8l; + } + + idx_base += 8; + } + } + else // little endian + { + for ( size_t uiIndex=0; uiIndex != size; ++uiIndex ) + { + DataType i64 = buffer[uiIndex]; + for (unsigned ui=0; ui!=8; ++ui) + { + pchBuffer[idx_base + ui] = + (unsigned char) (i64.GetLo() & 255l); + i64 >>= 8l; + } + + idx_base += 8; + } + } + + // TODO: Check for overflow when size is of type uint and is > than 512m + output->Write(pchBuffer, size * 8); + delete[] pchBuffer; +} - Read(string, len); +#endif // wxUSE_LONGLONG - string[len] = 0; - wx_string = string; - delete string; +#ifdef wxLongLong_t + +template <class T> +static +void DoReadI64(T *buffer, size_t size, wxInputStream *input, bool be_order) +{ + typedef T DataType; + unsigned char *pchBuffer = (unsigned char*) buffer; + // TODO: Check for overflow when size is of type uint and is > than 512m + input->Read(pchBuffer, size * 8); + if ( be_order ) + { + for ( wxUint32 i = 0; i < size; i++ ) + { + DataType v = wxUINT64_SWAP_ON_LE(*buffer); + *(buffer++) = v; + } + } + else // little endian + { + for ( wxUint32 i=0; i<size; i++ ) + { + DataType v = wxUINT64_SWAP_ON_BE(*buffer); + *(buffer++) = v; + } + } +} - return wx_string; +template <class T> +static +void DoWriteI64(const T *buffer, size_t size, wxOutputStream *output, bool be_order) +{ + typedef T DataType; + if ( be_order ) + { + for ( size_t i = 0; i < size; i++ ) + { + DataType i64 = wxUINT64_SWAP_ON_LE(*buffer); + buffer++; + output->Write(&i64, 8); + } + } + else // little endian + { + for ( size_t i=0; i < size; i++ ) + { + DataType i64 = wxUINT64_SWAP_ON_BE(*buffer); + buffer++; + output->Write(&i64, 8); + } + } +} + +#endif // wxLongLong_t + + +#if wxHAS_INT64 +void wxDataInputStream::Read64(wxUint64 *buffer, size_t size) +{ +#ifndef wxLongLong_t + DoReadLL(buffer, size, m_input, m_be_order); +#else + DoReadI64(buffer, size, m_input, m_be_order); +#endif +} + +void wxDataInputStream::Read64(wxInt64 *buffer, size_t size) +{ +#ifndef wxLongLong_t + DoReadLL(buffer, size, m_input, m_be_order); +#else + DoReadI64(buffer, size, m_input, m_be_order); +#endif +} +#endif // wxHAS_INT64 + +#if defined(wxLongLong_t) && wxUSE_LONGLONG +void wxDataInputStream::Read64(wxULongLong *buffer, size_t size) +{ + DoReadLL(buffer, size, m_input, m_be_order); +} + +void wxDataInputStream::Read64(wxLongLong *buffer, size_t size) +{ + DoReadLL(buffer, size, m_input, m_be_order); +} +#endif // wxLongLong_t + +#if wxUSE_LONGLONG +void wxDataInputStream::ReadLL(wxULongLong *buffer, size_t size) +{ + DoReadLL(buffer, size, m_input, m_be_order); +} + +void wxDataInputStream::ReadLL(wxLongLong *buffer, size_t size) +{ + DoReadLL(buffer, size, m_input, m_be_order); +} + +wxLongLong wxDataInputStream::ReadLL(void) +{ + wxLongLong ll; + DoReadLL(&ll, (size_t)1, m_input, m_be_order); + return ll; +} +#endif // wxUSE_LONGLONG + +void wxDataInputStream::Read32(wxUint32 *buffer, size_t size) +{ + m_input->Read(buffer, size * 4); + + if (m_be_order) + { + for (wxUint32 i=0; i<size; i++) + { + wxUint32 v = wxUINT32_SWAP_ON_LE(*buffer); + *(buffer++) = v; + } + } + else + { + for (wxUint32 i=0; i<size; i++) + { + wxUint32 v = wxUINT32_SWAP_ON_BE(*buffer); + *(buffer++) = v; + } + } +} + +void wxDataInputStream::Read16(wxUint16 *buffer, size_t size) +{ + m_input->Read(buffer, size * 2); + + if (m_be_order) + { + for (wxUint32 i=0; i<size; i++) + { + wxUint16 v = wxUINT16_SWAP_ON_LE(*buffer); + *(buffer++) = v; + } + } + else + { + for (wxUint32 i=0; i<size; i++) + { + wxUint16 v = wxUINT16_SWAP_ON_BE(*buffer); + *(buffer++) = v; + } + } +} + +void wxDataInputStream::Read8(wxUint8 *buffer, size_t size) +{ + m_input->Read(buffer, size); +} + +void wxDataInputStream::ReadDouble(double *buffer, size_t size) +{ + for (wxUint32 i=0; i<size; i++) + { + *(buffer++) = ReadDouble(); + } +} + +void wxDataInputStream::ReadFloat(float *buffer, size_t size) +{ + for (wxUint32 i=0; i<size; i++) + { + *(buffer++) = ReadFloat(); + } +} + +wxDataInputStream& wxDataInputStream::operator>>(wxString& s) +{ + s = ReadString(); + return *this; +} + +wxDataInputStream& wxDataInputStream::operator>>(wxInt8& c) +{ + c = (wxInt8)Read8(); + return *this; +} + +wxDataInputStream& wxDataInputStream::operator>>(wxInt16& i) +{ + i = (wxInt16)Read16(); + return *this; +} + +wxDataInputStream& wxDataInputStream::operator>>(wxInt32& i) +{ + i = (wxInt32)Read32(); + return *this; +} + +wxDataInputStream& wxDataInputStream::operator>>(wxUint8& c) +{ + c = Read8(); + return *this; +} + +wxDataInputStream& wxDataInputStream::operator>>(wxUint16& i) +{ + i = Read16(); + return *this; +} + +wxDataInputStream& wxDataInputStream::operator>>(wxUint32& i) +{ + i = Read32(); + return *this; +} + +#if wxHAS_INT64 +wxDataInputStream& wxDataInputStream::operator>>(wxUint64& i) +{ + i = Read64(); + return *this; +} + +wxDataInputStream& wxDataInputStream::operator>>(wxInt64& i) +{ + i = Read64(); + return *this; +} +#endif // wxHAS_INT64 + +#if defined(wxLongLong_t) && wxUSE_LONGLONG +wxDataInputStream& wxDataInputStream::operator>>(wxULongLong& i) +{ + i = ReadLL(); + return *this; +} + +wxDataInputStream& wxDataInputStream::operator>>(wxLongLong& i) +{ + i = ReadLL(); + return *this; +} +#endif // wxLongLong_t + +wxDataInputStream& wxDataInputStream::operator>>(double& d) +{ + d = ReadDouble(); + return *this; +} + +wxDataInputStream& wxDataInputStream::operator>>(float& f) +{ + f = ReadFloat(); + return *this; } // --------------------------------------------------------------------------- // wxDataOutputStream // --------------------------------------------------------------------------- -wxDataOutputStream::wxDataOutputStream(wxOutputStream& s) - : wxFilterOutputStream(s) +wxDataOutputStream::wxDataOutputStream(wxOutputStream& s, const wxMBConv& conv) + : wxDataStreamBase(conv), + m_output(&s) { } -wxDataOutputStream::~wxDataOutputStream() +#if wxHAS_INT64 +void wxDataOutputStream::Write64(wxUint64 i) { + Write64(&i, 1); } +void wxDataOutputStream::Write64(wxInt64 i) +{ + Write64(&i, 1); +} +#endif // wxHAS_INT64 + void wxDataOutputStream::Write32(wxUint32 i) { - char buf[4]; + wxUint32 i32; - buf[0] = i & 0xff; - buf[1] = (i >> 8) & 0xff; - buf[2] = (i >> 16) & 0xff; - buf[3] = (i >> 24) & 0xff; - Write(buf, 4); + if (m_be_order) + i32 = wxUINT32_SWAP_ON_LE(i); + else + i32 = wxUINT32_SWAP_ON_BE(i); + m_output->Write(&i32, 4); } void wxDataOutputStream::Write16(wxUint16 i) { - char buf[2]; + wxUint16 i16; + + if (m_be_order) + i16 = wxUINT16_SWAP_ON_LE(i); + else + i16 = wxUINT16_SWAP_ON_BE(i); - buf[0] = i & 0xff; - buf[1] = (i >> 8) & 0xff; - Write(buf, 2); + m_output->Write(&i16, 2); } void wxDataOutputStream::Write8(wxUint8 i) { - Write(&i, 1); + m_output->Write(&i, 1); } void wxDataOutputStream::WriteString(const wxString& string) { - Write32(string.Length()); - Write((const wxChar *) string, string.Length()*sizeof(wxChar)); +#if wxUSE_UNICODE + const wxWX2MBbuf buf = string.mb_str(*m_conv); +#else + const wxWX2MBbuf buf = string.mb_str(); +#endif + size_t len = strlen(buf); + Write32(len); + if (len > 0) + m_output->Write(buf, len); } -// Must be at global scope for VC++ 5 -extern "C" void ConvertToIeeeExtended(double num, unsigned char *bytes); - void wxDataOutputStream::WriteDouble(double d) { - char buf[10]; +#if wxUSE_APPLE_IEEE + if ( m_useExtendedPrecision ) + { + char buf[10]; + + wxConvertToIeeeExtended(d, (wxInt8 *)buf); + m_output->Write(buf, 10); + } + else +#endif // wxUSE_APPLE_IEEE + { + Float64Data floatData; + + floatData.f = (wxFloat64)d; + + if ( m_be_order == (wxBYTE_ORDER == wxBIG_ENDIAN) ) + { + Write32(floatData.i[0]); + Write32(floatData.i[1]); + } + else + { + Write32(floatData.i[1]); + Write32(floatData.i[0]); + } + } +} +void wxDataOutputStream::WriteFloat(float f) +{ #if wxUSE_APPLE_IEEE - ConvertToIeeeExtended(d, (unsigned char *)buf); + if ( m_useExtendedPrecision ) + { + WriteDouble((double)f); + } + else +#endif // wxUSE_APPLE_IEEE + { + Float32Data floatData; + + floatData.f = (wxFloat32)f; + Write32(floatData.i); + } +} + +#if wxHAS_INT64 +void wxDataOutputStream::Write64(const wxUint64 *buffer, size_t size) +{ +#ifndef wxLongLong_t + DoWriteLL(buffer, size, m_output, m_be_order); +#else + DoWriteI64(buffer, size, m_output, m_be_order); +#endif +} + +void wxDataOutputStream::Write64(const wxInt64 *buffer, size_t size) +{ +#ifndef wxLongLong_t + DoWriteLL(buffer, size, m_output, m_be_order); #else -# pragma warning "wxDataOutputStream::WriteDouble() not using IeeeExtended - will not work!" - buf[0] = '\0'; + DoWriteI64(buffer, size, m_output, m_be_order); #endif - Write(buf, 10); +} +#endif // wxHAS_INT64 + +#if defined(wxLongLong_t) && wxUSE_LONGLONG +void wxDataOutputStream::Write64(const wxULongLong *buffer, size_t size) +{ + DoWriteLL(buffer, size, m_output, m_be_order); +} + +void wxDataOutputStream::Write64(const wxLongLong *buffer, size_t size) +{ + DoWriteLL(buffer, size, m_output, m_be_order); +} +#endif // wxLongLong_t + +#if wxUSE_LONGLONG +void wxDataOutputStream::WriteLL(const wxULongLong *buffer, size_t size) +{ + DoWriteLL(buffer, size, m_output, m_be_order); +} + +void wxDataOutputStream::WriteLL(const wxLongLong *buffer, size_t size) +{ + DoWriteLL(buffer, size, m_output, m_be_order); +} + +void wxDataOutputStream::WriteLL(const wxLongLong &ll) +{ + WriteLL(&ll, 1); +} + +void wxDataOutputStream::WriteLL(const wxULongLong &ll) +{ + WriteLL(&ll, 1); +} +#endif // wxUSE_LONGLONG + +void wxDataOutputStream::Write32(const wxUint32 *buffer, size_t size) +{ + if (m_be_order) + { + for (wxUint32 i=0; i<size ;i++) + { + wxUint32 i32 = wxUINT32_SWAP_ON_LE(*buffer); + buffer++; + m_output->Write(&i32, 4); + } + } + else + { + for (wxUint32 i=0; i<size ;i++) + { + wxUint32 i32 = wxUINT32_SWAP_ON_BE(*buffer); + buffer++; + m_output->Write(&i32, 4); + } + } +} + +void wxDataOutputStream::Write16(const wxUint16 *buffer, size_t size) +{ + if (m_be_order) + { + for (wxUint32 i=0; i<size ;i++) + { + wxUint16 i16 = wxUINT16_SWAP_ON_LE(*buffer); + buffer++; + m_output->Write(&i16, 2); + } + } + else + { + for (wxUint32 i=0; i<size ;i++) + { + wxUint16 i16 = wxUINT16_SWAP_ON_BE(*buffer); + buffer++; + m_output->Write(&i16, 2); + } + } +} + +void wxDataOutputStream::Write8(const wxUint8 *buffer, size_t size) +{ + m_output->Write(buffer, size); +} + +void wxDataOutputStream::WriteDouble(const double *buffer, size_t size) +{ + for (wxUint32 i=0; i<size; i++) + { + WriteDouble(*(buffer++)); + } +} + +void wxDataOutputStream::WriteFloat(const float *buffer, size_t size) +{ + for (wxUint32 i=0; i<size; i++) + { + WriteFloat(*(buffer++)); + } +} + +wxDataOutputStream& wxDataOutputStream::operator<<(const wxString& string) +{ + WriteString(string); + return *this; +} + +wxDataOutputStream& wxDataOutputStream::operator<<(wxInt8 c) +{ + Write8((wxUint8)c); + return *this; +} + +wxDataOutputStream& wxDataOutputStream::operator<<(wxInt16 i) +{ + Write16((wxUint16)i); + return *this; +} + +wxDataOutputStream& wxDataOutputStream::operator<<(wxInt32 i) +{ + Write32((wxUint32)i); + return *this; +} + +wxDataOutputStream& wxDataOutputStream::operator<<(wxUint8 c) +{ + Write8(c); + return *this; +} + +wxDataOutputStream& wxDataOutputStream::operator<<(wxUint16 i) +{ + Write16(i); + return *this; +} + +wxDataOutputStream& wxDataOutputStream::operator<<(wxUint32 i) +{ + Write32(i); + return *this; +} + +#if wxHAS_INT64 +wxDataOutputStream& wxDataOutputStream::operator<<(wxUint64 i) +{ + Write64(i); + return *this; +} + +wxDataOutputStream& wxDataOutputStream::operator<<(wxInt64 i) +{ + Write64(i); + return *this; +} +#endif // wxHAS_INT64 + +#if defined(wxLongLong_t) && wxUSE_LONGLONG +wxDataOutputStream& wxDataOutputStream::operator<<(const wxULongLong &i) +{ + WriteLL(i); + return *this; +} + +wxDataOutputStream& wxDataOutputStream::operator<<(const wxLongLong &i) +{ + WriteLL(i); + return *this; +} +#endif // wxLongLong_t + +wxDataOutputStream& wxDataOutputStream::operator<<(double d) +{ + WriteDouble(d); + return *this; +} + +wxDataOutputStream& wxDataOutputStream::operator<<(float f) +{ + WriteFloat(f); + return *this; } #endif // wxUSE_STREAMS -