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1 | // Created on: 2013-09-19 |
2 | // Created by: Denis BOGOLEPOV |
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3 | // Copyright (c) 2013-2014 OPEN CASCADE SAS |
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4 | // |
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5 | // This file is part of Open CASCADE Technology software library. |
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6 | // |
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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 |
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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. |
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12 | // |
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13 | // Alternatively, this file may be used under the terms of Open CASCADE |
14 | // commercial license or contractual agreement. |
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15 | |
16 | #ifndef _OpenGl_ShaderObject_Header |
17 | #define _OpenGl_ShaderObject_Header |
18 | |
19 | #include <Handle_OpenGl_ShaderObject.hxx> |
20 | #include <Graphic3d_ShaderObject.hxx> |
21 | #include <OpenGl_GlCore20.hxx> |
22 | #include <OpenGl_Resource.hxx> |
23 | |
24 | //! Wrapper for OpenGL shader object. |
25 | class OpenGl_ShaderObject : public OpenGl_Resource |
26 | { |
27 | |
28 | public: |
29 | |
30 | //! Non-valid shader name. |
31 | static const GLuint NO_SHADER = 0; |
32 | |
33 | public: |
34 | |
35 | //! Creates uninitialized shader object. |
36 | Standard_EXPORT OpenGl_ShaderObject (GLenum theType); |
37 | |
38 | //! Releases resources of shader object. |
39 | Standard_EXPORT virtual ~OpenGl_ShaderObject(); |
40 | |
41 | //! Loads shader source code. |
42 | Standard_EXPORT Standard_Boolean LoadSource (const Handle(OpenGl_Context)& theCtx, |
43 | const TCollection_AsciiString& theSource); |
44 | |
45 | //! Compiles the shader object. |
46 | Standard_EXPORT Standard_Boolean Compile (const Handle(OpenGl_Context)& theCtx); |
47 | |
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); |
51 | |
52 | //! Fetches information log of the last compile operation. |
53 | Standard_EXPORT Standard_Boolean FetchInfoLog (const Handle(OpenGl_Context)& theCtx, |
54 | TCollection_AsciiString& theLog); |
55 | |
56 | //! Creates new empty shader object of specified type. |
57 | Standard_EXPORT Standard_Boolean Create (const Handle(OpenGl_Context)& theCtx); |
58 | |
59 | //! Destroys shader object. |
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60 | Standard_EXPORT virtual void Release (OpenGl_Context* theCtx); |
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61 | |
62 | //! Returns type of shader object. |
63 | GLenum Type() const { return myType; } |
64 | |
65 | protected: |
66 | |
67 | GLenum myType; //!< Type of OpenGL shader object |
68 | GLuint myShaderID; //!< Handle of OpenGL shader object |
69 | |
70 | public: |
71 | |
72 | DEFINE_STANDARD_RTTI (OpenGl_ShaderObject) |
73 | friend class OpenGl_ShaderProgram; |
74 | |
75 | }; |
76 | |
77 | #endif // _OpenGl_ShaderObject_Header |