1 // Created by: Kirill GAVRILOV
2 // Copyright (c) 2013-2014 OPEN CASCADE SAS
4 // This file is part of Open CASCADE Technology software library.
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
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.
12 // Alternatively, this file may be used under the terms of Open CASCADE
13 // commercial license or contractual agreement.
15 #ifndef _OpenGl_PointSprite_H__
16 #define _OpenGl_PointSprite_H__
18 #include <OpenGl_Texture.hxx>
19 #include <Handle_OpenGl_PointSprite.hxx>
21 //! Point sprite resource. On modern hardware it will be texture with extra parameters.
22 //! On ancient hardware sprites will be drawn using bitmaps.
23 class OpenGl_PointSprite : public OpenGl_Texture
28 //! Create uninitialized resource.
29 Standard_EXPORT OpenGl_PointSprite();
32 Standard_EXPORT virtual ~OpenGl_PointSprite();
34 //! Destroy object - will release GPU memory if any.
35 Standard_EXPORT virtual void Release (const OpenGl_Context* theCtx);
37 //! @return true if this is display list bitmap
38 inline Standard_Boolean IsDisplayList() const
40 return myBitmapList != 0;
43 //! Draw sprite using glBitmap.
44 //! Please call glRasterPos3fv() before to setup sprite position.
45 Standard_EXPORT void DrawBitmap (const Handle(OpenGl_Context)& theCtx) const;
47 //! Initialize point sprite as display list
48 Standard_EXPORT void SetDisplayList (const Handle(OpenGl_Context)& theCtx,
49 const GLuint theBitmapList);
53 GLuint myBitmapList; //!< if of display list to draw sprite using glBitmap (for backward compatibility)
57 DEFINE_STANDARD_RTTI(OpenGl_PointSprite) // Type definition
61 #endif // _OpenGl_PointSprite_H__