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75 lines
2.2 KiB
C++
75 lines
2.2 KiB
C++
// Copyright (c) 2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _Graphic3d_BoundBuffer_HeaderFile
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#define _Graphic3d_BoundBuffer_HeaderFile
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#include <Graphic3d_Buffer.hxx>
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//! Bounds buffer.
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class Graphic3d_BoundBuffer : public NCollection_Buffer
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{
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public:
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//! Empty constructor.
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Graphic3d_BoundBuffer (const Handle(NCollection_BaseAllocator)& theAlloc)
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: NCollection_Buffer (theAlloc),
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Colors (NULL),
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Bounds (NULL),
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NbBounds (0) {}
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//! Allocates new empty array
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bool Init (const Standard_Integer theNbBounds,
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const Standard_Boolean theHasColors)
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{
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Colors = NULL;
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Bounds = NULL;
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NbBounds = 0;
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Free();
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if (theNbBounds < 1)
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{
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return false;
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}
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const size_t aBoundsSize = sizeof(Standard_Integer) * theNbBounds;
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const size_t aColorsSize = theHasColors
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? sizeof(Graphic3d_Vec4) * theNbBounds
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: 0;
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if (!Allocate (aColorsSize + aBoundsSize))
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{
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Free();
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return false;
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}
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NbBounds = theNbBounds;
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Colors = theHasColors ? reinterpret_cast<Graphic3d_Vec4* >(myData) : NULL;
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Bounds = reinterpret_cast<Standard_Integer* >(theHasColors ? (myData + aColorsSize) : myData);
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return true;
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}
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public:
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Graphic3d_Vec4* Colors; //!< pointer to facet color values
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Standard_Integer* Bounds; //!< pointer to bounds array
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Standard_Integer NbBounds; //!< number of bounds
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public:
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DEFINE_STANDARD_RTTI_INLINE(Graphic3d_BoundBuffer,NCollection_Buffer) // Type definition
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};
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DEFINE_STANDARD_HANDLE(Graphic3d_BoundBuffer, NCollection_Buffer)
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#endif // _Graphic3d_BoundBuffer_HeaderFile
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