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.
20 #ifndef OpenGl_PrimitiveArray_Header
21 #define OpenGl_PrimitiveArray_Header
23 #include <OpenGl_VertexBuffer.hxx>
25 #include <InterfaceGraphic_Graphic3d.hxx>
26 #include <Aspect_InteriorStyle.hxx>
28 #include <OpenGl_Element.hxx>
30 struct OPENGL_SURF_PROP;
32 class OpenGl_PrimitiveArray : public OpenGl_Element
35 // OpenGL does not provie a constant for "none" draw mode.
36 // So we define our own one that does not conflict with GL constants
37 // and untilizes common GL invalid value
43 //! Default constructor
44 OpenGl_PrimitiveArray (CALL_DEF_PARRAY* thePArray);
46 //! Render primitives to the window
47 virtual void Render (const Handle(OpenGl_Workspace)& theWorkspace) const;
49 virtual void Release (const Handle(OpenGl_Context)& theContext);
51 CALL_DEF_PARRAY* PArray() const { return myPArray; }
55 Standard_Boolean toDrawVbo() const
57 return !myVbos[VBOVertices].IsNull();
60 //! VBO initialization procedures
61 Standard_Boolean BuildVBO (const Handle(OpenGl_Workspace)& theWorkspace) const;
62 void clearMemoryOwn() const;
63 void clearMemoryGL (const Handle(OpenGl_Context)& theGlCtx) const;
65 //! Main procedure to draw array
66 void DrawArray (Tint theLightingModel,
67 const Aspect_InteriorStyle theInteriorStyle,
69 const TEL_COLOUR* theInteriorColour,
70 const TEL_COLOUR* theLineColour,
71 const TEL_COLOUR* theEdgeColour,
72 const OPENGL_SURF_PROP* theFaceProp,
73 const Handle(OpenGl_Workspace)& theWorkspace) const;
75 //! Auxiliary procedures
76 void DrawEdges (const TEL_COLOUR* theEdgeColour,
77 const Handle(OpenGl_Workspace)& theWorkspace) const;
79 void DrawDegeneratesAsPoints (const TEL_COLOUR* theEdgeColour,
80 const float theSkipRatio) const;
81 void DrawDegeneratesAsLines (const TEL_COLOUR* theEdgeColour,
82 const Handle(OpenGl_Workspace)& theWorkspace) const;
83 void DrawDegeneratesAsBBoxs (const TEL_COLOUR* theEdgeColour) const;
85 void DrawDegeneratesPointsAsPoints() const;
86 void DrawDegeneratesLinesAsPoints() const;
87 void DrawDegeneratesLinesAsLines (const float theSkipRatio) const;
88 void DrawDegeneratesTrianglesAsPoints() const;
89 void DrawDegeneratesTrianglesAsLines (const float theSkipRatio) const;
90 void DrawDegeneratesTrianglestripsAsPoints() const;
91 void DrawDegeneratesTrianglestripsAsLines (const float theSkipRatio) const;
92 void DrawDegeneratesQuadranglesAsPoints() const;
93 void DrawDegeneratesQuadranglesAsLines (const float theSkipRatio) const;
94 void DrawDegeneratesQuadranglestripsAsPoints() const;
95 void DrawDegeneratesQuadranglestripsAsLines (const float theSkipRatio) const;
96 void DrawDegeneratesPolygonsAsPoints() const;
97 void DrawDegeneratesPolygonsAsLines (const float theSkipRatio) const;
102 virtual ~OpenGl_PrimitiveArray();
116 mutable CALL_DEF_PARRAY* myPArray;
117 mutable Handle(OpenGl_VertexBuffer) myVbos[VBOMaxType];
119 mutable Standard_Boolean myIsVboInit;
123 DEFINE_STANDARD_ALLOC
127 #endif //OpenGl_PrimitiveArray_Header