1 // Created on: 2013-09-19
2 // Created by: Denis BOGOLEPOV
3 // Copyright (c) 2013-2014 OPEN CASCADE SAS
5 // This file is part of Open CASCADE Technology software library.
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.
13 // Alternatively, this file may be used under the terms of Open CASCADE
14 // commercial license or contractual agreement.
16 #ifndef _OpenGl_ShaderObject_Header
17 #define _OpenGl_ShaderObject_Header
19 #include <Graphic3d_ShaderObject.hxx>
20 #include <OpenGl_GlCore20.hxx>
21 #include <OpenGl_Resource.hxx>
23 //! Wrapper for OpenGL shader object.
24 class OpenGl_ShaderObject : public OpenGl_Resource
29 //! Non-valid shader name.
30 static const GLuint NO_SHADER = 0;
34 //! Creates uninitialized shader object.
35 Standard_EXPORT OpenGl_ShaderObject (GLenum theType);
37 //! Releases resources of shader object.
38 Standard_EXPORT virtual ~OpenGl_ShaderObject();
40 //! Loads shader source code.
41 Standard_EXPORT Standard_Boolean LoadSource (const Handle(OpenGl_Context)& theCtx,
42 const TCollection_AsciiString& theSource);
44 //! Compiles the shader object.
45 Standard_EXPORT Standard_Boolean Compile (const Handle(OpenGl_Context)& theCtx);
47 //! Initializes (loads and compiles) shader object with the specified description.
48 Standard_EXPORT Standard_Boolean Initialize (const Handle(OpenGl_Context)& theCtx,
49 const Handle(Graphic3d_ShaderObject)& theShader);
51 //! Fetches information log of the last compile operation.
52 Standard_EXPORT Standard_Boolean FetchInfoLog (const Handle(OpenGl_Context)& theCtx,
53 TCollection_AsciiString& theLog);
55 //! Creates new empty shader object of specified type.
56 Standard_EXPORT Standard_Boolean Create (const Handle(OpenGl_Context)& theCtx);
58 //! Destroys shader object.
59 Standard_EXPORT virtual void Release (OpenGl_Context* theCtx);
61 //! Returns type of shader object.
62 GLenum Type() const { return myType; }
66 GLenum myType; //!< Type of OpenGL shader object
67 GLuint myShaderID; //!< Handle of OpenGL shader object
71 DEFINE_STANDARD_RTTI (OpenGl_ShaderObject, OpenGl_Resource)
72 friend class OpenGl_ShaderProgram;
76 #endif // _OpenGl_ShaderObject_Header