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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 | |
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16 | #if defined(__APPLE__) && !defined(HAVE_XLIB) |
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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 | // macOS 10.4 deprecated OpenGL framework - suppress useless warnings |
23 | #define GL_SILENCE_DEPRECATION |
24 | |
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25 | #import <TargetConditionals.h> |
26 | |
27 | #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE |
28 | #import <UIKit/UIKit.h> |
29 | #else |
30 | #import <Cocoa/Cocoa.h> |
31 | #endif |
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32 | |
33 | #include <OpenGl_GlCore11.hxx> |
34 | #include <OpenGl_Context.hxx> |
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35 | #include <OpenGl_FrameBuffer.hxx> |
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36 | |
37 | #include <Standard_ProgramError.hxx> |
38 | |
39 | // ======================================================================= |
40 | // function : IsCurrent |
41 | // purpose : |
42 | // ======================================================================= |
43 | Standard_Boolean OpenGl_Context::IsCurrent() const |
44 | { |
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45 | #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE |
46 | return myGContext != NULL |
47 | && [EAGLContext currentContext] == myGContext; |
48 | #else |
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49 | return myGContext != NULL |
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50 | && [NSOpenGLContext currentContext] == myGContext; |
51 | #endif |
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52 | } |
53 | |
54 | // ======================================================================= |
55 | // function : MakeCurrent |
56 | // purpose : |
57 | // ======================================================================= |
58 | Standard_Boolean OpenGl_Context::MakeCurrent() |
59 | { |
60 | if (myGContext == NULL) |
61 | { |
62 | Standard_ProgramError_Raise_if (myIsInitialized, "OpenGl_Context::Init() should be called before!"); |
63 | return Standard_False; |
64 | } |
65 | |
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66 | #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE |
67 | return [EAGLContext setCurrentContext: myGContext] == YES; |
68 | #else |
69 | [myGContext makeCurrentContext]; |
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70 | return Standard_True; |
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71 | #endif |
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72 | } |
73 | |
74 | // ======================================================================= |
75 | // function : SwapBuffers |
76 | // purpose : |
77 | // ======================================================================= |
78 | void OpenGl_Context::SwapBuffers() |
79 | { |
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80 | if (myGContext == NULL) |
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81 | { |
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82 | return; |
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83 | } |
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84 | |
85 | #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE |
86 | if (myDefaultFbo.IsNull() |
87 | || !myDefaultFbo->IsValid() |
88 | || myDefaultFbo->ColorRenderBuffer() == 0) |
89 | { |
90 | return; |
91 | } |
92 | |
93 | ::glBindRenderbuffer (GL_RENDERBUFFER, myDefaultFbo->ColorRenderBuffer()); |
94 | [myGContext presentRenderbuffer: GL_RENDERBUFFER]; |
95 | //::glBindRenderbuffer (GL_RENDERBUFFER, 0); |
96 | #else |
97 | glFinish(); |
98 | [myGContext flushBuffer]; |
99 | #endif |
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100 | } |
101 | |
102 | // ======================================================================= |
103 | // function : Init |
104 | // purpose : |
105 | // ======================================================================= |
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106 | Standard_Boolean OpenGl_Context::Init (const Standard_Boolean theIsCoreProfile) |
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107 | { |
108 | if (myIsInitialized) |
109 | { |
110 | return Standard_True; |
111 | } |
112 | |
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113 | #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE |
114 | myGContext = [EAGLContext currentContext]; |
115 | #else |
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116 | myGContext = [NSOpenGLContext currentContext]; |
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117 | #endif |
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118 | if (myGContext == NULL) |
119 | { |
120 | return Standard_False; |
121 | } |
122 | |
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123 | init (theIsCoreProfile); |
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124 | myIsInitialized = Standard_True; |
125 | return Standard_True; |
126 | } |
127 | |
128 | #endif // __APPLE__ |