#include <HLRBRep_PolyHLRToShape.hxx>
#include <HLRBRep_PolyAlgo.hxx>
+#include <limits>
+
//=======================================================================
//function : SurfaceGenOCC26675_1
//purpose : Generates a surface for intersect (in corresponding
return 0;
}
+#include <NCollection_Buffer.hxx>
+#include <DDocStd_DrawDocument.hxx>
+#include <OSD_OpenFile.hxx>
+#include <Standard_ArrayStreamBuffer.hxx>
+#include <TDataStd_Name.hxx>
+#include <TDocStd_Application.hxx>
+
+#ifdef max
+ #undef max
+#endif
+
+static Standard_Integer OCC28887 (Draw_Interpretor&, Standard_Integer theNbArgs, const char** theArgVec)
+{
+ if (theNbArgs < 3)
+ {
+ std::cout << "Syntax error: wrong number of arguments!\n";
+ return 1;
+ }
+
+ const TCollection_AsciiString aFilePath (theArgVec[1]);
+ const TCollection_AsciiString aName (theArgVec[2]);
+ Handle(NCollection_Buffer) aBuffer;
+ {
+ std::ifstream aFile;
+ OSD_OpenStream (aFile, aFilePath.ToCString(), std::ios::binary | std::ios::in);
+ if (!aFile.is_open())
+ {
+ std::cout << "Error: input file '" << aFilePath << "' cannot be read\n";
+ return 1;
+ }
+ aFile.seekg (0, std::ios_base::end);
+ const int64_t aFileLength = int64_t (aFile.tellg());
+ if (aFileLength > int64_t (std::numeric_limits<ptrdiff_t>::max())
+ || aFileLength < 1)
+ {
+ std::cout << "Error: input file '" << aFilePath << "' is too large\n";
+ return 1;
+ }
+ aFile.seekg (0, std::ios_base::beg);
+
+ aBuffer = new NCollection_Buffer (NCollection_BaseAllocator::CommonBaseAllocator());
+ if (!aBuffer->Allocate (size_t(aFileLength)))
+ {
+ std::cout << "Error: memory allocation (" << aFileLength << ") has failed\n";
+ return 1;
+ }
+
+ aFile.read ((char* )aBuffer->ChangeData(), aBuffer->Size());
+ if (!aFile.good())
+ {
+ std::cout << "Error: input file '" << aFilePath << "' reading failure\n";
+ return 1;
+ }
+ }
+
+ Standard_ArrayStreamBuffer aStreamBuffer ((const char* )aBuffer->ChangeData(), aBuffer->Size());
+ std::istream aStream (&aStreamBuffer);
+ // just play with seeking
+ aStream.seekg (0, std::ios_base::end);
+ aStream.seekg (0, std::ios_base::beg);
+ if (aFilePath.EndsWith (".brep")
+ || aFilePath.EndsWith (".rle"))
+ {
+ TopoDS_Shape aShape;
+ BRep_Builder aBuilder;
+ BRepTools::Read (aShape, aStream, aBuilder);
+ DBRep::Set (aName.ToCString(), aShape);
+ }
+ else
+ {
+ Handle(TDocStd_Document) aDoc;
+ Handle(TDocStd_Application) anApp = DDocStd::GetApplication();
+ Standard_CString aNameVar = aName.ToCString();
+ if (DDocStd::GetDocument (aNameVar, aDoc, Standard_False))
+ {
+ std::cout << "Error: document with name " << aName << " already exists\n";
+ return 1;
+ }
+
+ if (anApp->Open (aStream, aDoc) != PCDM_RS_OK)
+ {
+ std::cout << "Error: cannot open XDE document\n";
+ return 1;
+ }
+
+ Handle(DDocStd_DrawDocument) aDrawDoc = new DDocStd_DrawDocument (aDoc);
+ TDataStd_Name::Set (aDoc->GetData()->Root(), aName.ToCString());
+ Draw::Set (aName.ToCString(), aDrawDoc);
+ }
+
+ return 0;
+}
+
void QABugs::Commands_20(Draw_Interpretor& theCommands) {
const char *group = "QABugs";
theCommands.Add("OCC28594", "OCC28594", __FILE__, OCC28594, group);
theCommands.Add("OCC28784", "OCC28784 result shape", __FILE__, OCC28784, group);
theCommands.Add("OCC28829", "OCC28829: perform invalid FPE operation", __FILE__, OCC28829, group);
+ theCommands.Add("OCC28887",
+ "OCC28887 filePath result"
+ "\n\t\t: Check interface for reading BRep from memory.",
+ __FILE__, OCC28887, group);
return;
}
Standard.hxx
Standard_AbortiveTransaction.hxx
Standard_Address.hxx
+Standard_ArrayStreamBuffer.hxx
+Standard_ArrayStreamBuffer.cxx
Standard_Assert.hxx
Standard_Atomic.hxx
Standard_Boolean.hxx
--- /dev/null
+// Copyright (c) 2016 OPEN CASCADE SAS
+//
+// This file is part of Open CASCADE Technology software library.
+//
+// This library is free software; you can redistribute it and/or modify it under
+// the terms of the GNU Lesser General Public License version 2.1 as published
+// by the Free Software Foundation, with special exception defined in the file
+// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
+// distribution for complete text of the license and disclaimer of any warranty.
+//
+// Alternatively, this file may be used under the terms of Open CASCADE
+// commercial license or contractual agreement.
+
+#include <Standard_ArrayStreamBuffer.hxx>
+
+// =======================================================================
+// function : Standard_ArrayStreamBuffer
+// purpose :
+// =======================================================================
+Standard_ArrayStreamBuffer::Standard_ArrayStreamBuffer (const char* theBegin,
+ const size_t theSize)
+: myBegin (theBegin),
+ myEnd (theBegin + theSize),
+ myCurrent(theBegin)
+{
+ //
+}
+
+// =======================================================================
+// function : ~Standard_ArrayStreamBuffer
+// purpose :
+// =======================================================================
+Standard_ArrayStreamBuffer::~Standard_ArrayStreamBuffer()
+{
+ //
+}
+
+// =======================================================================
+// function : Init
+// purpose :
+// =======================================================================
+void Standard_ArrayStreamBuffer::Init (const char* theBegin,
+ const size_t theSize)
+{
+ myBegin = theBegin;
+ myEnd = theBegin + theSize;
+ myCurrent = theBegin;
+}
+
+// =======================================================================
+// function : underflow
+// purpose :
+// =======================================================================
+Standard_ArrayStreamBuffer::int_type Standard_ArrayStreamBuffer::underflow()
+{
+ if (myCurrent == myEnd)
+ {
+ return traits_type::eof();
+ }
+
+ return traits_type::to_int_type(*myCurrent);
+}
+
+// =======================================================================
+// function : uflow
+// purpose :
+// =======================================================================
+Standard_ArrayStreamBuffer::int_type Standard_ArrayStreamBuffer::uflow()
+{
+ if (myCurrent == myEnd)
+ {
+ return traits_type::eof();
+ }
+
+ return traits_type::to_int_type(*myCurrent++);
+}
+
+// =======================================================================
+// function : pbackfail
+// purpose :
+// =======================================================================
+Standard_ArrayStreamBuffer::int_type Standard_ArrayStreamBuffer::pbackfail (int_type ch)
+{
+ if (myCurrent == myBegin
+ || (ch != traits_type::eof()
+ && ch != myCurrent[-1]))
+ {
+ return traits_type::eof();
+ }
+
+ return traits_type::to_int_type(*--myCurrent);
+}
+
+// =======================================================================
+// function : showmanyc
+// purpose :
+// =======================================================================
+std::streamsize Standard_ArrayStreamBuffer::showmanyc()
+{
+ if (myCurrent > myEnd)
+ {
+ // assert
+ }
+ return myEnd - myCurrent;
+}
+
+// =======================================================================
+// function : seekoff
+// purpose :
+// =======================================================================
+Standard_ArrayStreamBuffer::pos_type Standard_ArrayStreamBuffer::seekoff (off_type theOff,
+ std::ios_base::seekdir theWay,
+ std::ios_base::openmode theWhich)
+{
+ switch (theWay)
+ {
+ case std::ios_base::beg:
+ {
+ myCurrent = myBegin + theOff;
+ if (myCurrent >= myEnd)
+ {
+ myCurrent = myEnd;
+ }
+ break;
+ }
+ case std::ios_base::cur:
+ {
+ myCurrent += theOff;
+ if (myCurrent >= myEnd)
+ {
+ myCurrent = myEnd;
+ }
+ break;
+ }
+ case std::ios_base::end:
+ {
+ myCurrent = myEnd - theOff;
+ if (myCurrent < myBegin)
+ {
+ myCurrent = myBegin;
+ }
+ break;
+ }
+ default:
+ {
+ break;
+ }
+ }
+ (void )theWhich;
+ return myCurrent - myBegin;
+}
+
+// =======================================================================
+// function : seekpos
+// purpose :
+// =======================================================================
+Standard_ArrayStreamBuffer::pos_type Standard_ArrayStreamBuffer::seekpos (pos_type thePosition,
+ std::ios_base::openmode theWhich)
+{
+ return seekoff (off_type(thePosition), std::ios_base::beg, theWhich);
+}
+
+// =======================================================================
+// function : xsgetn
+// purpose :
+// =======================================================================
+std::streamsize Standard_ArrayStreamBuffer::xsgetn (char* thePtr,
+ std::streamsize theCount)
+{
+ const char* aCurrent = myCurrent + theCount;
+ if (aCurrent >= myEnd)
+ {
+ aCurrent = myEnd;
+ }
+ size_t aCopied = aCurrent - myCurrent;
+ if (aCopied == 0)
+ {
+ return 0;
+ }
+ memcpy (thePtr, myCurrent, aCopied);
+ myCurrent = aCurrent;
+ return aCopied;
+}
--- /dev/null
+// Copyright (c) 2016 OPEN CASCADE SAS
+//
+// This file is part of Open CASCADE Technology software library.
+//
+// This library is free software; you can redistribute it and/or modify it under
+// the terms of the GNU Lesser General Public License version 2.1 as published
+// by the Free Software Foundation, with special exception defined in the file
+// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
+// distribution for complete text of the license and disclaimer of any warranty.
+//
+// Alternatively, this file may be used under the terms of Open CASCADE
+// commercial license or contractual agreement.
+
+#ifndef _Standard_ArrayStreamBuffer_HeaderFile
+#define _Standard_ArrayStreamBuffer_HeaderFile
+
+#include <Standard_Type.hxx>
+
+#include <fstream>
+
+//! Custom buffer object implementing STL interface std::streambuf for streamed reading from allocated memory block.
+//! Implements minimal sub-set of methods for passing buffer to std::istream, including seek support.
+//!
+//! This class can be used for creating a seekable input stream in cases,
+//! when the source data does not satisfies Reader requirements (non-seekable stream, compressed data)
+//! or represents an in-memory resource.
+//!
+//! The memory itself is NOT managed by this class - it is up to the caller to ensure that passed memory pointer
+//! is not released during Standard_ArrayStreamBuffer lifetime.
+//!
+//! Usage example:
+//! @code
+//! const char* theBuffer;
+//! const size_t theBufferLength;
+//! Standard_ArrayStreamBuffer aStreamBuffer (theBuffer, theBufferLength);
+//! std::istream aStream (&aStreamBuffer);
+//! TopoDS_Shape aShape;
+//! BRep_Builder aBuilder;
+//! BRepTools::Read (aShape, aStream, aBuilder);
+//! @endcode
+class Standard_ArrayStreamBuffer : public std::streambuf
+{
+public:
+
+ //! Main constructor.
+ //! Passed pointer is stored as is (memory is NOT copied nor released with destructor).
+ //! @param theBegin pointer to the beggining of pre-allocated buffer
+ //! @param theSize length of pre-allocated buffer
+ Standard_EXPORT Standard_ArrayStreamBuffer (const char* theBegin,
+ const size_t theSize);
+
+ //! Destructor.
+ Standard_EXPORT virtual ~Standard_ArrayStreamBuffer();
+
+ //! (Re)-initialize the stream.
+ //! Passed pointer is stored as is (memory is NOT copied nor released with destructor).
+ //! @param theBegin pointer to the beggining of pre-allocated buffer
+ //! @param theSize length of pre-allocated buffer
+ Standard_EXPORT virtual void Init (const char* theBegin,
+ const size_t theSize);
+
+protected:
+
+ //! Get character on underflow.
+ //! Virtual function called by other member functions to get the current character
+ //! in the controlled input sequence without changing the current position.
+ Standard_EXPORT virtual int_type underflow() Standard_OVERRIDE;
+
+ //! Get character on underflow and advance position.
+ //! Virtual function called by other member functions to get the current character
+ //! in the controlled input sequence and then advance the position indicator to the next character.
+ Standard_EXPORT virtual int_type uflow() Standard_OVERRIDE;
+
+ //! Put character back in the case of backup underflow.
+ //! Virtual function called by other member functions to put a character back
+ //! into the controlled input sequence and decrease the position indicator.
+ Standard_EXPORT virtual int_type pbackfail (int_type ch) Standard_OVERRIDE;
+
+ //! Get number of characters available.
+ //! Virtual function (to be read s-how-many-c) called by other member functions
+ //! to get an estimate on the number of characters available in the associated input sequence.
+ Standard_EXPORT virtual std::streamsize showmanyc() Standard_OVERRIDE;
+
+ //! Seek to specified position.
+ Standard_EXPORT virtual pos_type seekoff (off_type theOff,
+ std::ios_base::seekdir theWay,
+ std::ios_base::openmode theWhich) Standard_OVERRIDE;
+
+ //! Change to specified position, according to mode.
+ Standard_EXPORT virtual pos_type seekpos (pos_type thePosition,
+ std::ios_base::openmode theWhich) Standard_OVERRIDE;
+
+public:
+
+ //! Read a bunch of bytes at once.
+ Standard_EXPORT virtual std::streamsize xsgetn (char* thePtr,
+ std::streamsize theCount) Standard_OVERRIDE;
+
+private:
+
+ // copying is not allowed
+ Standard_ArrayStreamBuffer (const Standard_ArrayStreamBuffer& );
+ Standard_ArrayStreamBuffer& operator= (const Standard_ArrayStreamBuffer& );
+
+protected:
+
+ const char* myBegin;
+ const char* myEnd;
+ const char* myCurrent;
+
+};
+
+#endif // _Standard_ArrayStreamBuffer_HeaderFile
--- /dev/null
+puts "=========="
+puts "OCC28887 Test case for Standard_ArrayStreamBuffer class - streaming interface for reading from allocated memory block"
+puts "=========="
+puts ""
+
+pload QAcommands VISUALIZATION
+OCC28887 [locate_data_file face.brep] f
+
+vclear
+vclose ALL
+vinit View1
+vaxo
+vdisplay -dispMode 1 f
+vfit
+vdump $::imagedir/${::casename}.png
--- /dev/null
+puts "=========="
+puts "OCC28887 Test case for Standard_ArrayStreamBuffer class - streaming interface for reading from allocated memory block"
+puts "=========="
+puts ""
+
+pload QAcommands VISUALIZATION DCAF
+catch { Close doc }
+OCC28887 [locate_data_file bug23384-doc_subshapes.xbf] doc
+
+vclear
+vclose ALL
+XShow doc
+vaxo
+vfit
+vsetdispmode 1
+vdump $::imagedir/${::casename}.png
projects / occt.git / commitdiff