| 1 | // Created on: 2013-09-19 |
| 2 | // Created by: Denis BOGOLEPOV |
| 3 | // Copyright (c) 2013-2014 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_ShaderObject_Header |
| 17 | #define _OpenGl_ShaderObject_Header |
| 18 | |
| 19 | #include <Graphic3d_ShaderObject.hxx> |
| 20 | #include <OpenGl_GlCore20.hxx> |
| 21 | #include <OpenGl_Resource.hxx> |
| 22 | |
| 23 | class OpenGl_ShaderObject; |
| 24 | DEFINE_STANDARD_HANDLE(OpenGl_ShaderObject, OpenGl_Resource) |
| 25 | |
| 26 | //! Wrapper for OpenGL shader object. |
| 27 | class OpenGl_ShaderObject : public OpenGl_Resource |
| 28 | { |
| 29 | |
| 30 | public: |
| 31 | |
| 32 | //! Non-valid shader name. |
| 33 | static const GLuint NO_SHADER = 0; |
| 34 | |
| 35 | public: |
| 36 | |
| 37 | //! Creates uninitialized shader object. |
| 38 | Standard_EXPORT OpenGl_ShaderObject (GLenum theType); |
| 39 | |
| 40 | //! Releases resources of shader object. |
| 41 | Standard_EXPORT virtual ~OpenGl_ShaderObject(); |
| 42 | |
| 43 | //! Loads shader source code. |
| 44 | Standard_EXPORT Standard_Boolean LoadSource (const Handle(OpenGl_Context)& theCtx, |
| 45 | const TCollection_AsciiString& theSource); |
| 46 | |
| 47 | //! Compiles the shader object. |
| 48 | Standard_EXPORT Standard_Boolean Compile (const Handle(OpenGl_Context)& theCtx); |
| 49 | |
| 50 | //! Initializes (loads and compiles) shader object with the specified description. |
| 51 | Standard_EXPORT Standard_Boolean Initialize (const Handle(OpenGl_Context)& theCtx, |
| 52 | const Handle(Graphic3d_ShaderObject)& theShader); |
| 53 | |
| 54 | //! Fetches information log of the last compile operation. |
| 55 | Standard_EXPORT Standard_Boolean FetchInfoLog (const Handle(OpenGl_Context)& theCtx, |
| 56 | TCollection_AsciiString& theLog); |
| 57 | |
| 58 | //! Creates new empty shader object of specified type. |
| 59 | Standard_EXPORT Standard_Boolean Create (const Handle(OpenGl_Context)& theCtx); |
| 60 | |
| 61 | //! Destroys shader object. |
| 62 | Standard_EXPORT virtual void Release (OpenGl_Context* theCtx) Standard_OVERRIDE; |
| 63 | |
| 64 | //! Returns type of shader object. |
| 65 | GLenum Type() const { return myType; } |
| 66 | |
| 67 | protected: |
| 68 | |
| 69 | GLenum myType; //!< Type of OpenGL shader object |
| 70 | GLuint myShaderID; //!< Handle of OpenGL shader object |
| 71 | |
| 72 | public: |
| 73 | |
| 74 | DEFINE_STANDARD_RTTIEXT(OpenGl_ShaderObject,OpenGl_Resource) |
| 75 | friend class OpenGl_ShaderProgram; |
| 76 | |
| 77 | }; |
| 78 | |
| 79 | #endif // _OpenGl_ShaderObject_Header |