0030748: Visualization - Marker displayed in immediate layer ruins QT Quick view...
[occt.git] / src / OpenGl / OpenGl_PointSprite.hxx
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a577aaab 1// Created by: Kirill GAVRILOV
d5f74e42 2// Copyright (c) 2013-2014 OPEN CASCADE SAS
a577aaab 3//
973c2be1 4// This file is part of Open CASCADE Technology software library.
a577aaab 5//
d5f74e42 6// This library is free software; you can redistribute it and/or modify it under
7// the terms of the GNU Lesser General Public License version 2.1 as published
973c2be1 8// by the Free Software Foundation, with special exception defined in the file
9// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
10// distribution for complete text of the license and disclaimer of any warranty.
a577aaab 11//
973c2be1 12// Alternatively, this file may be used under the terms of Open CASCADE
13// commercial license or contractual agreement.
a577aaab 14
15#ifndef _OpenGl_PointSprite_H__
16#define _OpenGl_PointSprite_H__
17
18#include <OpenGl_Texture.hxx>
a577aaab 19
c04c30b3 20class OpenGl_PointSprite;
21DEFINE_STANDARD_HANDLE(OpenGl_PointSprite, OpenGl_Texture)
22
a577aaab 23//! Point sprite resource. On modern hardware it will be texture with extra parameters.
24//! On ancient hardware sprites will be drawn using bitmaps.
25class OpenGl_PointSprite : public OpenGl_Texture
26{
737e9a8d 27 DEFINE_STANDARD_RTTIEXT(OpenGl_PointSprite, OpenGl_Texture)
a577aaab 28public:
29
30 //! Create uninitialized resource.
cc8cbabe 31 Standard_EXPORT OpenGl_PointSprite (const TCollection_AsciiString& theResourceId);
a577aaab 32
33 //! Destroy object.
34 Standard_EXPORT virtual ~OpenGl_PointSprite();
35
36 //! Destroy object - will release GPU memory if any.
79104795 37 Standard_EXPORT virtual void Release (OpenGl_Context* theCtx) Standard_OVERRIDE;
a577aaab 38
737e9a8d 39 //! Returns TRUE for point sprite texture.
40 virtual bool IsPointSprite() const Standard_OVERRIDE { return true; }
41
a577aaab 42 //! @return true if this is display list bitmap
43 inline Standard_Boolean IsDisplayList() const
44 {
45 return myBitmapList != 0;
46 }
47
48 //! Draw sprite using glBitmap.
49 //! Please call glRasterPos3fv() before to setup sprite position.
50 Standard_EXPORT void DrawBitmap (const Handle(OpenGl_Context)& theCtx) const;
51
52 //! Initialize point sprite as display list
53 Standard_EXPORT void SetDisplayList (const Handle(OpenGl_Context)& theCtx,
54 const GLuint theBitmapList);
55
56protected:
57
58 GLuint myBitmapList; //!< if of display list to draw sprite using glBitmap (for backward compatibility)
59
a577aaab 60};
61
62#endif // _OpenGl_PointSprite_H__