| 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 under |
| 8 | // the terms of the GNU Lesser General Public License 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_AspectLine_Header |
| 17 | #define _OpenGl_AspectLine_Header |
| 18 | |
| 19 | #include <TCollection_AsciiString.hxx> |
| 20 | |
| 21 | #include <Graphic3d_AspectLine3d.hxx> |
| 22 | #include <OpenGl_Element.hxx> |
| 23 | |
| 24 | class OpenGl_ShaderProgram; |
| 25 | |
| 26 | //! The element holding Graphic3d_AspectLine3d. |
| 27 | class OpenGl_AspectLine : public OpenGl_Element |
| 28 | { |
| 29 | public: |
| 30 | |
| 31 | //! Empty constructor. |
| 32 | Standard_EXPORT OpenGl_AspectLine(); |
| 33 | |
| 34 | //! Create and assign line aspect. |
| 35 | Standard_EXPORT OpenGl_AspectLine (const Handle(Graphic3d_AspectLine3d)& theAspect); |
| 36 | |
| 37 | //! Return line aspect. |
| 38 | const Handle(Graphic3d_AspectLine3d)& Aspect() const { return myAspect; } |
| 39 | |
| 40 | //! Assign line aspect. |
| 41 | Standard_EXPORT void SetAspect (const Handle(Graphic3d_AspectLine3d)& theAspect); |
| 42 | |
| 43 | //! Init and return OpenGl shader program resource. |
| 44 | //! @return shader program resource. |
| 45 | const Handle(OpenGl_ShaderProgram)& ShaderProgramRes (const Handle(OpenGl_Context)& theCtx) const |
| 46 | { |
| 47 | if (!myResources.IsShaderReady()) |
| 48 | { |
| 49 | myResources.BuildShader (theCtx, myAspect->ShaderProgram()); |
| 50 | myResources.SetShaderReady(); |
| 51 | } |
| 52 | |
| 53 | return myResources.ShaderProgram; |
| 54 | } |
| 55 | |
| 56 | Standard_EXPORT virtual void Render (const Handle(OpenGl_Workspace)& theWorkspace) const; |
| 57 | Standard_EXPORT virtual void Release (OpenGl_Context* theContext); |
| 58 | |
| 59 | protected: |
| 60 | |
| 61 | //! OpenGl resources |
| 62 | mutable struct Resources |
| 63 | { |
| 64 | public: |
| 65 | Resources() : myIsShaderReady (Standard_False) {} |
| 66 | |
| 67 | Standard_Boolean IsShaderReady() const { return myIsShaderReady; } |
| 68 | void SetShaderReady() { myIsShaderReady = Standard_True; } |
| 69 | void ResetShaderReadiness() { myIsShaderReady = Standard_False; } |
| 70 | |
| 71 | Standard_EXPORT void BuildShader (const Handle(OpenGl_Context)& theCtx, |
| 72 | const Handle(Graphic3d_ShaderProgram)& theShader); |
| 73 | |
| 74 | Handle(OpenGl_ShaderProgram) ShaderProgram; |
| 75 | TCollection_AsciiString ShaderProgramId; |
| 76 | |
| 77 | private: |
| 78 | |
| 79 | Standard_Boolean myIsShaderReady; |
| 80 | |
| 81 | } myResources; |
| 82 | Handle(Graphic3d_AspectLine3d) myAspect; |
| 83 | |
| 84 | public: |
| 85 | DEFINE_STANDARD_ALLOC |
| 86 | }; |
| 87 | |
| 88 | #endif //_OpenGl_AspectLine_Header |