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1 | // Created on: 2012-11-12 |
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2 | // Created by: Kirill GAVRILOV |
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3 | // Copyright (c) 2012-2014 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 | #if defined(__APPLE__) && !defined(MACOSX_USE_GLX) |
17 | |
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18 | #ifndef GL_GLEXT_LEGACY |
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19 | #define GL_GLEXT_LEGACY // To prevent inclusion of system glext.h on Mac OS X 10.6.8 |
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20 | #endif |
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21 | |
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22 | #import <TargetConditionals.h> |
23 | |
24 | #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE |
25 | #import <UIKit/UIKit.h> |
26 | #else |
27 | #import <Cocoa/Cocoa.h> |
28 | #endif |
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29 | |
30 | #include <OpenGl_GlCore11.hxx> |
31 | #include <OpenGl_Context.hxx> |
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32 | #include <OpenGl_FrameBuffer.hxx> |
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33 | |
34 | #include <Standard_ProgramError.hxx> |
35 | |
36 | // ======================================================================= |
37 | // function : IsCurrent |
38 | // purpose : |
39 | // ======================================================================= |
40 | Standard_Boolean OpenGl_Context::IsCurrent() const |
41 | { |
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42 | #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE |
43 | return myGContext != NULL |
44 | && [EAGLContext currentContext] == myGContext; |
45 | #else |
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46 | return myGContext != NULL |
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47 | && [NSOpenGLContext currentContext] == myGContext; |
48 | #endif |
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49 | } |
50 | |
51 | // ======================================================================= |
52 | // function : MakeCurrent |
53 | // purpose : |
54 | // ======================================================================= |
55 | Standard_Boolean OpenGl_Context::MakeCurrent() |
56 | { |
57 | if (myGContext == NULL) |
58 | { |
59 | Standard_ProgramError_Raise_if (myIsInitialized, "OpenGl_Context::Init() should be called before!"); |
60 | return Standard_False; |
61 | } |
62 | |
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63 | #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE |
64 | return [EAGLContext setCurrentContext: myGContext] == YES; |
65 | #else |
66 | [myGContext makeCurrentContext]; |
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67 | return Standard_True; |
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68 | #endif |
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69 | } |
70 | |
71 | // ======================================================================= |
72 | // function : SwapBuffers |
73 | // purpose : |
74 | // ======================================================================= |
75 | void OpenGl_Context::SwapBuffers() |
76 | { |
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77 | if (myGContext == NULL) |
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78 | { |
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79 | return; |
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80 | } |
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81 | |
82 | #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE |
83 | if (myDefaultFbo.IsNull() |
84 | || !myDefaultFbo->IsValid() |
85 | || myDefaultFbo->ColorRenderBuffer() == 0) |
86 | { |
87 | return; |
88 | } |
89 | |
90 | ::glBindRenderbuffer (GL_RENDERBUFFER, myDefaultFbo->ColorRenderBuffer()); |
91 | [myGContext presentRenderbuffer: GL_RENDERBUFFER]; |
92 | //::glBindRenderbuffer (GL_RENDERBUFFER, 0); |
93 | #else |
94 | glFinish(); |
95 | [myGContext flushBuffer]; |
96 | #endif |
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97 | } |
98 | |
99 | // ======================================================================= |
100 | // function : Init |
101 | // purpose : |
102 | // ======================================================================= |
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103 | Standard_Boolean OpenGl_Context::Init (const Standard_Boolean theIsCoreProfile) |
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104 | { |
105 | if (myIsInitialized) |
106 | { |
107 | return Standard_True; |
108 | } |
109 | |
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110 | #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE |
111 | myGContext = [EAGLContext currentContext]; |
112 | #else |
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113 | myGContext = [NSOpenGLContext currentContext]; |
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114 | #endif |
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115 | if (myGContext == NULL) |
116 | { |
117 | return Standard_False; |
118 | } |
119 | |
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120 | init (theIsCoreProfile); |
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121 | myIsInitialized = Standard_True; |
122 | return Standard_True; |
123 | } |
124 | |
125 | #endif // __APPLE__ |