0024166: Unable to create file with "Save" menu of voxeldemo Qt sample
[occt.git] / src / OpenGl / OpenGl_ShaderObject.hxx
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30f0ad28 1// Created on: 2013-09-19
2// Created by: Denis BOGOLEPOV
3// Copyright (c) 2013 OPEN CASCADE SAS
4//
5// The content of this file is subject to the Open CASCADE Technology Public
6// License Version 6.5 (the "License"). You may not use the content of this file
7// except in compliance with the License. Please obtain a copy of the License
8// at http://www.opencascade.org and read it completely before using this file.
9//
10// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
11// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
12//
13// The Original Code and all software distributed under the License is
14// distributed on an "AS IS" basis, without warranty of any kind, and the
15// Initial Developer hereby disclaims all such warranties, including without
16// limitation, any warranties of merchantability, fitness for a particular
17// purpose or non-infringement. Please see the License for the specific terms
18// and conditions governing the rights and limitations under the License.
19
20#ifndef _OpenGl_ShaderObject_Header
21#define _OpenGl_ShaderObject_Header
22
23#include <Handle_OpenGl_ShaderObject.hxx>
24#include <Graphic3d_ShaderObject.hxx>
25#include <OpenGl_GlCore20.hxx>
26#include <OpenGl_Resource.hxx>
27
28//! Wrapper for OpenGL shader object.
29class OpenGl_ShaderObject : public OpenGl_Resource
30{
31
32public:
33
34 //! Non-valid shader name.
35 static const GLuint NO_SHADER = 0;
36
37public:
38
39 //! Creates uninitialized shader object.
40 Standard_EXPORT OpenGl_ShaderObject (GLenum theType);
41
42 //! Releases resources of shader object.
43 Standard_EXPORT virtual ~OpenGl_ShaderObject();
44
45 //! Loads shader source code.
46 Standard_EXPORT Standard_Boolean LoadSource (const Handle(OpenGl_Context)& theCtx,
47 const TCollection_AsciiString& theSource);
48
49 //! Compiles the shader object.
50 Standard_EXPORT Standard_Boolean Compile (const Handle(OpenGl_Context)& theCtx);
51
52 //! Initializes (loads and compiles) shader object with the specified description.
53 Standard_EXPORT Standard_Boolean Initialize (const Handle(OpenGl_Context)& theCtx,
54 const Handle(Graphic3d_ShaderObject)& theShader);
55
56 //! Fetches information log of the last compile operation.
57 Standard_EXPORT Standard_Boolean FetchInfoLog (const Handle(OpenGl_Context)& theCtx,
58 TCollection_AsciiString& theLog);
59
60 //! Creates new empty shader object of specified type.
61 Standard_EXPORT Standard_Boolean Create (const Handle(OpenGl_Context)& theCtx);
62
63 //! Destroys shader object.
64 Standard_EXPORT virtual void Release (const OpenGl_Context* theCtx);
65
66 //! Returns type of shader object.
67 GLenum Type() const { return myType; }
68
69protected:
70
71 GLenum myType; //!< Type of OpenGL shader object
72 GLuint myShaderID; //!< Handle of OpenGL shader object
73
74public:
75
76 DEFINE_STANDARD_RTTI (OpenGl_ShaderObject)
77 friend class OpenGl_ShaderProgram;
78
79};
80
81#endif // _OpenGl_ShaderObject_Header