/usr/include/oce/OpenGl_VertexBufferCompat.hxx is in liboce-visualization-dev 0.18.2-2build1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 | // Created by: Kirill GAVRILOV
// Copyright (c) 2014 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 _OpenGl_VertexBufferCompat_HeaderFile
#define _OpenGl_VertexBufferCompat_HeaderFile
#include <OpenGl_VertexBuffer.hxx>
//! Compatibility layer for old OpenGL without VBO.
//! Make sure to pass pointer from GetDataOffset() instead of NULL.
//! Method GetDataOffset() returns pointer to real data in this class
//! (while base class OpenGl_VertexBuffer always return NULL).
//!
//! Methods Bind()/Unbind() do nothing (do not affect OpenGL state)
//! and ::GetTarget() is never used.
//! For this reason there is no analog for OpenGl_IndexBuffer.
//! Just pass GetDataOffset() to glDrawElements() directly as last argument.
//!
//! Class overrides methods init() and subData() to copy data into own memory buffer.
//! Extra method initLink() might be used to pass existing buffer through handle without copying the data.
//!
//! Method Create() creates dummy identifier for this object which should NOT be passed to OpenGL functions.
class OpenGl_VertexBufferCompat : public OpenGl_VertexBuffer
{
public:
//! Create uninitialized VBO.
Standard_EXPORT OpenGl_VertexBufferCompat();
//! Destroy object.
Standard_EXPORT virtual ~OpenGl_VertexBufferCompat();
//! Creates VBO name (id) if not yet generated.
//! Data should be initialized by another method.
Standard_EXPORT bool Create (const Handle(OpenGl_Context)& theGlCtx);
//! Destroy object - will release memory if any.
Standard_EXPORT virtual void Release (OpenGl_Context* theGlCtx) Standard_OVERRIDE;
//! Bind this VBO.
Standard_EXPORT virtual void Bind (const Handle(OpenGl_Context)& theGlCtx) const Standard_OVERRIDE;
//! Unbind this VBO.
Standard_EXPORT virtual void Unbind (const Handle(OpenGl_Context)& theGlCtx) const Standard_OVERRIDE;
public: //! @name advanced methods
//! Initialize buffer with existing data.
//! Data will NOT be copied by this method!
Standard_EXPORT bool initLink (const Handle(NCollection_Buffer)& theData,
const GLuint theComponentsNb,
const GLsizei theElemsNb,
const GLenum theDataType);
//! Initialize buffer with new data (data will be copied).
Standard_EXPORT virtual bool init (const Handle(OpenGl_Context)& theGlCtx,
const GLuint theComponentsNb,
const GLsizei theElemsNb,
const void* theData,
const GLenum theDataType,
const GLsizei theStride) Standard_OVERRIDE;
//! Update part of the buffer with new data.
Standard_EXPORT virtual bool subData (const Handle(OpenGl_Context)& theGlCtx,
const GLsizei theElemFrom,
const GLsizei theElemsNb,
const void* theData,
const GLenum theDataType) Standard_OVERRIDE;
protected:
Handle(NCollection_Buffer) myData; //!< buffer data
public:
DEFINE_STANDARD_RTTI(OpenGl_VertexBufferCompat) // Type definition
};
DEFINE_STANDARD_HANDLE(OpenGl_VertexBufferCompat, OpenGl_VertexBuffer)
#endif // _OpenGl_VertexBufferCompat_HeaderFile
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