1 // Created on: 2013-09-19
2 // Created by: Denis BOGOLEPOV
3 // Copyright (c) 2013 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
8 // under the terms of the GNU Lesser General Public 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 <Handle_OpenGl_ShaderObject.hxx>
20 #include <Graphic3d_ShaderObject.hxx>
21 #include <OpenGl_GlCore20.hxx>
22 #include <OpenGl_Resource.hxx>
24 //! Wrapper for OpenGL shader object.
25 class OpenGl_ShaderObject : public OpenGl_Resource
30 //! Non-valid shader name.
31 static const GLuint NO_SHADER = 0;
35 //! Creates uninitialized shader object.
36 Standard_EXPORT OpenGl_ShaderObject (GLenum theType);
38 //! Releases resources of shader object.
39 Standard_EXPORT virtual ~OpenGl_ShaderObject();
41 //! Loads shader source code.
42 Standard_EXPORT Standard_Boolean LoadSource (const Handle(OpenGl_Context)& theCtx,
43 const TCollection_AsciiString& theSource);
45 //! Compiles the shader object.
46 Standard_EXPORT Standard_Boolean Compile (const Handle(OpenGl_Context)& theCtx);
48 //! Initializes (loads and compiles) shader object with the specified description.
49 Standard_EXPORT Standard_Boolean Initialize (const Handle(OpenGl_Context)& theCtx,
50 const Handle(Graphic3d_ShaderObject)& theShader);
52 //! Fetches information log of the last compile operation.
53 Standard_EXPORT Standard_Boolean FetchInfoLog (const Handle(OpenGl_Context)& theCtx,
54 TCollection_AsciiString& theLog);
56 //! Creates new empty shader object of specified type.
57 Standard_EXPORT Standard_Boolean Create (const Handle(OpenGl_Context)& theCtx);
59 //! Destroys shader object.
60 Standard_EXPORT virtual void Release (const OpenGl_Context* theCtx);
62 //! Returns type of shader object.
63 GLenum Type() const { return myType; }
67 GLenum myType; //!< Type of OpenGL shader object
68 GLuint myShaderID; //!< Handle of OpenGL shader object
72 DEFINE_STANDARD_RTTI (OpenGl_ShaderObject)
73 friend class OpenGl_ShaderProgram;
77 #endif // _OpenGl_ShaderObject_Header