1 // Created on: 2011-07-13
2 // Created by: Sergey ZERCHANINOV
3 // Copyright (c) 2011-2012 OPEN CASCADE SAS
5 // The content of this file is subject to the Open CASCADE Technology Public
6 // License Version 6.5 (the "License"). You may not use the content of this file
7 // except in compliance with the License. Please obtain a copy of the License
8 // at http://www.opencascade.org and read it completely before using this file.
10 // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
11 // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
13 // The Original Code and all software distributed under the License is
14 // distributed on an "AS IS" basis, without warranty of any kind, and the
15 // Initial Developer hereby disclaims all such warranties, including without
16 // limitation, any warranties of merchantability, fitness for a particular
17 // purpose or non-infringement. Please see the License for the specific terms
18 // and conditions governing the rights and limitations under the License.
21 #ifndef OpenGl_PrimitiveArray_Header
22 #define OpenGl_PrimitiveArray_Header
24 #include <OpenGl_VertexBuffer.hxx>
26 #include <InterfaceGraphic_telem.hxx>
27 #include <Aspect_InteriorStyle.hxx>
29 #include <OpenGl_Element.hxx>
31 struct OPENGL_SURF_PROP;
33 class OpenGl_PrimitiveArray : public OpenGl_Element
36 // OpenGL does not provie a constant for "none" draw mode.
37 // So we define our own one that does not conflict with GL constants
38 // and untilizes common GL invalid value
44 //! Default constructor
45 OpenGl_PrimitiveArray (CALL_DEF_PARRAY* thePArray);
47 //! Render primitives to the window
48 virtual void Render (const Handle(OpenGl_Workspace)& theWorkspace) const;
50 virtual void Release (const Handle(OpenGl_Context)& theContext);
52 CALL_DEF_PARRAY* PArray() const { return myPArray; }
56 Standard_Boolean toDrawVbo() const
58 return !myVbos[VBOVertices].IsNull();
61 //! VBO initialization procedures
62 Standard_Boolean BuildVBO (const Handle(OpenGl_Workspace)& theWorkspace) const;
63 void clearMemoryOwn() const;
64 void clearMemoryGL (const Handle(OpenGl_Context)& theGlCtx) const;
66 //! Main procedure to draw array
67 void DrawArray (Tint theLightingModel,
68 const Aspect_InteriorStyle theInteriorStyle,
70 const TEL_COLOUR* theInteriorColour,
71 const TEL_COLOUR* theLineColour,
72 const TEL_COLOUR* theEdgeColour,
73 const OPENGL_SURF_PROP* theFaceProp,
74 const Handle(OpenGl_Workspace)& theWorkspace) const;
76 //! Auxiliary procedures
77 void DrawEdges (const TEL_COLOUR* theEdgeColour,
78 const Handle(OpenGl_Workspace)& theWorkspace) const;
80 void DrawDegeneratesAsPoints (const TEL_COLOUR* theEdgeColour,
81 const float theSkipRatio) const;
82 void DrawDegeneratesAsLines (const TEL_COLOUR* theEdgeColour,
83 const Handle(OpenGl_Workspace)& theWorkspace) const;
84 void DrawDegeneratesAsBBoxs (const TEL_COLOUR* theEdgeColour) const;
86 void DrawDegeneratesPointsAsPoints() const;
87 void DrawDegeneratesLinesAsPoints() const;
88 void DrawDegeneratesLinesAsLines (const float theSkipRatio) const;
89 void DrawDegeneratesTrianglesAsPoints() const;
90 void DrawDegeneratesTrianglesAsLines (const float theSkipRatio) const;
91 void DrawDegeneratesTrianglestripsAsPoints() const;
92 void DrawDegeneratesTrianglestripsAsLines (const float theSkipRatio) const;
93 void DrawDegeneratesQuadranglesAsPoints() const;
94 void DrawDegeneratesQuadranglesAsLines (const float theSkipRatio) const;
95 void DrawDegeneratesQuadranglestripsAsPoints() const;
96 void DrawDegeneratesQuadranglestripsAsLines (const float theSkipRatio) const;
97 void DrawDegeneratesPolygonsAsPoints() const;
98 void DrawDegeneratesPolygonsAsLines (const float theSkipRatio) const;
103 virtual ~OpenGl_PrimitiveArray();
117 mutable CALL_DEF_PARRAY* myPArray;
118 mutable Handle(OpenGl_VertexBuffer) myVbos[VBOMaxType];
120 mutable Standard_Boolean myIsVboInit;
124 DEFINE_STANDARD_ALLOC
128 #endif //OpenGl_PrimitiveArray_Header