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0b0320e76e
Move background arrays to separate class OpenGl_BackgroundArray for texture and gradient arrays. Eliminated warnings on Linux
123 lines
4.1 KiB
C++
123 lines
4.1 KiB
C++
// Created on: 2011-07-13
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// Created by: Sergey ZERCHANINOV
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// Copyright (c) 2011-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef OpenGl_PrimitiveArray_Header
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#define OpenGl_PrimitiveArray_Header
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#include <OpenGl_IndexBuffer.hxx>
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#include <InterfaceGraphic_Graphic3d.hxx>
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#include <Aspect_InteriorStyle.hxx>
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#include <Aspect_TypeOfMarker.hxx>
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#include <Graphic3d_TypeOfPrimitiveArray.hxx>
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#include <Graphic3d_IndexBuffer.hxx>
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#include <Graphic3d_BoundBuffer.hxx>
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#include <OpenGl_Element.hxx>
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class OpenGl_GraphicDriver;
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class Handle(OpenGl_ShaderProgram);
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//! Class for rendering of arbitrary primitive array.
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class OpenGl_PrimitiveArray : public OpenGl_Element
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{
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public:
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// OpenGL does not provide a constant for "none" draw mode.
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// So we define our own one that does not conflict with GL constants
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// and utilizes common GL invalid value
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enum
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{
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DRAW_MODE_NONE = -1
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};
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//! Default constructor
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OpenGl_PrimitiveArray (const OpenGl_GraphicDriver* theDriver,
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const Graphic3d_TypeOfPrimitiveArray theType,
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const Handle(Graphic3d_IndexBuffer)& theIndices,
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const Handle(Graphic3d_Buffer)& theAttribs,
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const Handle(Graphic3d_BoundBuffer)& theBounds);
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//! Render primitives to the window
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virtual void Render (const Handle(OpenGl_Workspace)& theWorkspace) const;
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virtual void Release (OpenGl_Context* theContext);
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//! @return primitive type (GL_LINES, GL_TRIANGLES and others)
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GLint DrawMode() const { return myDrawMode; }
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//! @return indices array
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const Handle(Graphic3d_IndexBuffer)& Indices() const { return myIndices; }
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//! @return attributes array
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const Handle(Graphic3d_Buffer)& Attributes() const { return myAttribs; }
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//! @return bounds array
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const Handle(Graphic3d_BoundBuffer)& Bounds() const { return myBounds; }
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//! Returns unique ID of primitive array.
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const Standard_Size GetUID() const { return myUID; }
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protected:
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//! VBO initialization procedures
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//! @param theCtx bound GL context
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//! @param theToKeepData when true, myAttribs will not be nullified after VBO creation
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Standard_EXPORT Standard_Boolean buildVBO (const Handle(OpenGl_Context)& theCtx,
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const Standard_Boolean theToKeepData) const;
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Standard_EXPORT void clearMemoryGL (const Handle(OpenGl_Context)& theGlCtx) const;
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private:
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//! Initialize normal (OpenGL-provided) VBO
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Standard_Boolean initNormalVbo (const Handle(OpenGl_Context)& theCtx) const;
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//! Main procedure to draw array
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void drawArray (const Handle(OpenGl_Workspace)& theWorkspace,
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const Graphic3d_Vec4* theFaceColors,
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const Standard_Boolean theHasVertColor) const;
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//! Auxiliary procedures
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void drawEdges (const TEL_COLOUR* theEdgeColour,
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const Handle(OpenGl_Workspace)& theWorkspace) const;
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void drawMarkers (const Handle(OpenGl_Workspace)& theWorkspace) const;
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protected:
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//! Destructor
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virtual ~OpenGl_PrimitiveArray();
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protected:
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mutable Handle(OpenGl_VertexBuffer) myVboIndices;
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mutable Handle(OpenGl_VertexBuffer) myVboAttribs;
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mutable Handle(Graphic3d_IndexBuffer) myIndices;
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mutable Handle(Graphic3d_Buffer) myAttribs;
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mutable Handle(Graphic3d_BoundBuffer) myBounds;
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GLint myDrawMode;
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mutable Standard_Boolean myIsVboInit;
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Standard_Size myUID; //!< Unique ID of primitive array.
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public:
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DEFINE_STANDARD_ALLOC
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};
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#endif //OpenGl_PrimitiveArray_Header
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