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1 | // Created by: Kirill GAVRILOV |
| 2 | // Copyright (c) 2013 OPEN CASCADE SAS |
| 3 | // |
| 4 | // The content of this file is subject to the Open CASCADE Technology Public |
| 5 | // License Version 6.5 (the "License"). You may not use the content of this file |
| 6 | // except in compliance with the License. Please obtain a copy of the License |
| 7 | // at http://www.opencascade.org and read it completely before using this file. |
| 8 | // |
| 9 | // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its |
| 10 | // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France. |
| 11 | // |
| 12 | // The Original Code and all software distributed under the License is |
| 13 | // distributed on an "AS IS" basis, without warranty of any kind, and the |
| 14 | // Initial Developer hereby disclaims all such warranties, including without |
| 15 | // limitation, any warranties of merchantability, fitness for a particular |
| 16 | // purpose or non-infringement. Please see the License for the specific terms |
| 17 | // and conditions governing the rights and limitations under the License. |
| 18 | |
| 19 | #ifndef _OpenGl_PointSprite_H__ |
| 20 | #define _OpenGl_PointSprite_H__ |
| 21 | |
| 22 | #include <OpenGl_Texture.hxx> |
| 23 | #include <Handle_OpenGl_PointSprite.hxx> |
| 24 | |
| 25 | //! Point sprite resource. On modern hardware it will be texture with extra parameters. |
| 26 | //! On ancient hardware sprites will be drawn using bitmaps. |
| 27 | class OpenGl_PointSprite : public OpenGl_Texture |
| 28 | { |
| 29 | |
| 30 | public: |
| 31 | |
| 32 | //! Create uninitialized resource. |
| 33 | Standard_EXPORT OpenGl_PointSprite(); |
| 34 | |
| 35 | //! Destroy object. |
| 36 | Standard_EXPORT virtual ~OpenGl_PointSprite(); |
| 37 | |
| 38 | //! Destroy object - will release GPU memory if any. |
| 39 | Standard_EXPORT virtual void Release (const OpenGl_Context* theCtx); |
| 40 | |
| 41 | //! @return true if this is display list bitmap |
| 42 | inline Standard_Boolean IsDisplayList() const |
| 43 | { |
| 44 | return myBitmapList != 0; |
| 45 | } |
| 46 | |
| 47 | //! Draw sprite using glBitmap. |
| 48 | //! Please call glRasterPos3fv() before to setup sprite position. |
| 49 | Standard_EXPORT void DrawBitmap (const Handle(OpenGl_Context)& theCtx) const; |
| 50 | |
| 51 | //! Initialize point sprite as display list |
| 52 | Standard_EXPORT void SetDisplayList (const Handle(OpenGl_Context)& theCtx, |
| 53 | const GLuint theBitmapList); |
| 54 | |
| 55 | protected: |
| 56 | |
| 57 | GLuint myBitmapList; //!< if of display list to draw sprite using glBitmap (for backward compatibility) |
| 58 | |
| 59 | public: |
| 60 | |
| 61 | DEFINE_STANDARD_RTTI(OpenGl_PointSprite) // Type definition |
| 62 | |
| 63 | }; |
| 64 | |
| 65 | #endif // _OpenGl_PointSprite_H__ |
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