| | 1 | // Created on: 2011-07-13 |
| | 2 | // Created by: Sergey ZERCHANINOV |
| | 3 | // Copyright (c) 2011-2014 OPEN CASCADE SAS |
| | 4 | // |
| | 5 | // This file is part of Open CASCADE Technology software library. |
| | 6 | // |
| | 7 | // This library is free software; you can redistribute it and / or modify it |
| | 8 | // under the terms of the GNU Lesser General Public version 2.1 as published |
| | 9 | // by the Free Software Foundation, with special exception defined in the file |
| | 10 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
| | 11 | // distribution for complete text of the license and disclaimer of any warranty. |
| | 12 | // |
| | 13 | // Alternatively, this file may be used under the terms of Open CASCADE |
| | 14 | // commercial license or contractual agreement. |
| | 15 | |
| | 16 | #ifndef OpenGl_PrimitiveArray_Header |
| | 17 | #define OpenGl_PrimitiveArray_Header |
| | 18 | |
| | 19 | #include <OpenGl_VertexBuffer.hxx> |
| | 20 | |
| | 21 | #include <InterfaceGraphic_Graphic3d.hxx> |
| | 22 | #include <Aspect_InteriorStyle.hxx> |
| | 23 | #include <Aspect_TypeOfMarker.hxx> |
| | 24 | |
| | 25 | #include <OpenGl_Element.hxx> |
| | 26 | |
| | 27 | struct OPENGL_SURF_PROP; |
| | 28 | |
| | 29 | class OpenGl_PrimitiveArray : public OpenGl_Element |
| | 30 | { |
| | 31 | public: |
| | 32 | // OpenGL does not provie a constant for "none" draw mode. |
| | 33 | // So we define our own one that does not conflict with GL constants |
| | 34 | // and untilizes common GL invalid value |
| | 35 | enum |
| | 36 | { |
| | 37 | DRAW_MODE_NONE = -1 |
| | 38 | }; |
| | 39 | |
| | 40 | //! Default constructor |
| | 41 | OpenGl_PrimitiveArray (CALL_DEF_PARRAY* thePArray); |
| | 42 | |
| | 43 | //! Render primitives to the window |
| | 44 | virtual void Render (const Handle(OpenGl_Workspace)& theWorkspace) const; |
| | 45 | |
| | 46 | virtual void Release (const Handle(OpenGl_Context)& theContext); |
| | 47 | |
| | 48 | CALL_DEF_PARRAY* PArray() const { return myPArray; } |
| | 49 | |
| | 50 | private: |
| | 51 | |
| | 52 | Standard_Boolean toDrawVbo() const |
| | 53 | { |
| | 54 | return !myVbos[VBOVertices].IsNull(); |
| | 55 | } |
| | 56 | |
| | 57 | //! VBO initialization procedures |
| | 58 | Standard_Boolean BuildVBO (const Handle(OpenGl_Workspace)& theWorkspace) const; |
| | 59 | void clearMemoryOwn() const; |
| | 60 | void clearMemoryGL (const Handle(OpenGl_Context)& theGlCtx) const; |
| | 61 | |
| | 62 | //! Main procedure to draw array |
| | 63 | void DrawArray (Tint theLightingModel, |
| | 64 | const Aspect_InteriorStyle theInteriorStyle, |
| | 65 | Tint theEdgeFlag, |
| | 66 | const TEL_COLOUR* theInteriorColour, |
| | 67 | const TEL_COLOUR* theLineColour, |
| | 68 | const TEL_COLOUR* theEdgeColour, |
| | 69 | const OPENGL_SURF_PROP* theFaceProp, |
| | 70 | const Handle(OpenGl_Workspace)& theWorkspace) const; |
| | 71 | |
| | 72 | //! Auxiliary procedures |
| | 73 | void DrawEdges (const TEL_COLOUR* theEdgeColour, |
| | 74 | const Handle(OpenGl_Workspace)& theWorkspace) const; |
| | 75 | |
| | 76 | void DrawMarkers (const Handle(OpenGl_Workspace)& theWorkspace) const; |
| | 77 | |
| | 78 | protected: |
| | 79 | |
| | 80 | //! Destructor |
| | 81 | virtual ~OpenGl_PrimitiveArray(); |
| | 82 | |
| | 83 | protected: |
| | 84 | |
| | 85 | typedef enum |
| | 86 | { |
| | 87 | VBOEdges, |
| | 88 | VBOVertices, |
| | 89 | VBOVcolours, |
| | 90 | VBOVnormals, |
| | 91 | VBOVtexels, |
| | 92 | VBOMaxType |
| | 93 | } VBODataType; |
| | 94 | |
| | 95 | mutable CALL_DEF_PARRAY* myPArray; |
| | 96 | mutable Handle(OpenGl_VertexBuffer) myVbos[VBOMaxType]; |
| | 97 | GLint myDrawMode; |
| | 98 | mutable Standard_Boolean myIsVboInit; |
| | 99 | |
| | 100 | public: |
| | 101 | |
| | 102 | DEFINE_STANDARD_ALLOC |
| | 103 | |
| | 104 | }; |
| | 105 | |
| | 106 | #endif //OpenGl_PrimitiveArray_Header |
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