1 // Created on: 2012-11-12
2 // Created by: Kirill Gavrilov
3 // Copyright (c) 2012-2014 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 under
8 // the terms of the GNU Lesser General Public License 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 #if defined(__APPLE__) && !defined(HAVE_XLIB)
18 #ifndef GL_GLEXT_LEGACY
19 #define GL_GLEXT_LEGACY // To prevent inclusion of system glext.h on Mac OS X 10.6.8
22 // macOS 10.4 deprecated OpenGL framework - suppress useless warnings
23 #define GL_SILENCE_DEPRECATION
25 #import <TargetConditionals.h>
27 #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
28 #import <UIKit/UIKit.h>
30 #import <Cocoa/Cocoa.h>
32 #if !defined(MAC_OS_X_VERSION_10_7) || (MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_7)
33 @interface NSView (LionAPI)
34 - (NSSize )convertSizeToBacking: (NSSize )theSize;
40 #include <OpenGl_Window.hxx>
41 #include <OpenGl_FrameBuffer.hxx>
43 #include <OpenGl_Context.hxx>
44 #include <Aspect_GraphicDeviceDefinitionError.hxx>
45 #include <Cocoa_LocalPool.hxx>
46 #include <TCollection_AsciiString.hxx>
47 #include <TCollection_ExtendedString.hxx>
49 #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
52 #include <OpenGL/CGLRenderers.h>
55 // =======================================================================
56 // function : OpenGl_Window
58 // =======================================================================
59 OpenGl_Window::OpenGl_Window (const Handle(OpenGl_GraphicDriver)& theDriver,
60 const Handle(Aspect_Window)& thePlatformWindow,
61 Aspect_RenderingContext theGContext,
62 const Handle(OpenGl_Caps)& theCaps,
63 const Handle(OpenGl_Context)& theShareCtx)
64 : myGlContext (new OpenGl_Context (theCaps)),
65 myOwnGContext (theGContext == 0),
66 myPlatformWindow (thePlatformWindow),
67 #if defined(__APPLE__) && defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
70 mySwapInterval (theCaps->swapInterval)
73 myPlatformWindow->Size (myWidth, myHeight);
75 #if defined(__APPLE__)
77 myHeightPt = myHeight;
80 #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
81 EAGLContext* aGLContext = theGContext;
82 if (aGLContext == NULL)
84 void* aViewPtr = (void* )myPlatformWindow->NativeHandle();
86 myUIView = (__bridge UIView* )aViewPtr;
87 CAEAGLLayer* anEaglLayer = (CAEAGLLayer* )myUIView.layer;
88 anEaglLayer.opaque = TRUE;
89 anEaglLayer.drawableProperties = [NSDictionary dictionaryWithObjectsAndKeys:
90 [NSNumber numberWithBool: FALSE], kEAGLDrawablePropertyRetainedBacking,
91 kEAGLColorFormatRGBA8, kEAGLDrawablePropertyColorFormat,
94 aGLContext = [[EAGLContext alloc] initWithAPI: kEAGLRenderingAPIOpenGLES3];
95 if (aGLContext == NULL
96 || ![EAGLContext setCurrentContext: aGLContext])
98 aGLContext = [[EAGLContext alloc] initWithAPI: kEAGLRenderingAPIOpenGLES2];
100 if (aGLContext == NULL
101 || ![EAGLContext setCurrentContext: aGLContext])
103 TCollection_AsciiString aMsg ("OpenGl_Window::CreateWindow: EAGLContext creation failed");
104 throw Aspect_GraphicDeviceDefinitionError(aMsg.ToCString());
109 myGlContext->Init (aGLContext, Standard_False);
113 if (![EAGLContext setCurrentContext: aGLContext])
115 TCollection_AsciiString aMsg ("OpenGl_Window::CreateWindow: EAGLContext can not be assigned");
116 throw Aspect_GraphicDeviceDefinitionError(aMsg.ToCString());
120 myGlContext->Init (aGLContext, Standard_False);
124 Cocoa_LocalPool aLocalPool;
126 // all GL context within one OpenGl_GraphicDriver should be shared!
127 NSOpenGLContext* aGLCtxShare = theShareCtx.IsNull() ? NULL : theShareCtx->myGContext;
128 NSOpenGLContext* aGLContext = theGContext;
130 if (aGLContext == NULL)
132 NSOpenGLPixelFormatAttribute anAttribs[32] = {};
133 Standard_Integer aLastAttrib = 0;
134 //anAttribs[aLastAttrib++] = NSOpenGLPFAColorSize; anAttribs[aLastAttrib++] = 32,
135 anAttribs[aLastAttrib++] = NSOpenGLPFADepthSize; anAttribs[aLastAttrib++] = 24;
136 anAttribs[aLastAttrib++] = NSOpenGLPFAStencilSize; anAttribs[aLastAttrib++] = 8;
137 anAttribs[aLastAttrib++] = NSOpenGLPFADoubleBuffer;
138 if (theCaps->contextNoAccel)
140 anAttribs[aLastAttrib++] = NSOpenGLPFARendererID;
141 anAttribs[aLastAttrib++] = (NSOpenGLPixelFormatAttribute )kCGLRendererGenericFloatID;
145 anAttribs[aLastAttrib++] = NSOpenGLPFAAccelerated;
147 anAttribs[aLastAttrib] = 0;
148 const Standard_Integer aLastMainAttrib = aLastAttrib;
149 Standard_Integer aTryCore = 0;
150 Standard_Integer aTryStereo = 0;
151 for (aTryCore = 1; aTryCore >= 0; --aTryCore)
153 aLastAttrib = aLastMainAttrib;
156 if (theCaps->contextCompatible)
161 // supported since OS X 10.7+
162 anAttribs[aLastAttrib++] = 99; // NSOpenGLPFAOpenGLProfile
163 anAttribs[aLastAttrib++] = 0x3200; // NSOpenGLProfileVersion3_2Core
166 for (aTryStereo = 1; aTryStereo >= 0; --aTryStereo)
170 if (!theCaps->contextStereo)
175 // deprecated since macOS 10.12 without replacement
176 Standard_DISABLE_DEPRECATION_WARNINGS
177 anAttribs[aLastAttrib++] = NSOpenGLPFAStereo;
178 Standard_ENABLE_DEPRECATION_WARNINGS
181 anAttribs[aLastAttrib] = 0;
183 NSOpenGLPixelFormat* aGLFormat = [[[NSOpenGLPixelFormat alloc] initWithAttributes: anAttribs] autorelease];
184 aGLContext = [[NSOpenGLContext alloc] initWithFormat: aGLFormat
185 shareContext: aGLCtxShare];
186 if (aGLContext != NULL)
192 if (aGLContext != NULL)
198 if (aGLContext == NULL)
200 TCollection_AsciiString aMsg ("OpenGl_Window::CreateWindow: NSOpenGLContext creation failed");
201 throw Aspect_GraphicDeviceDefinitionError(aMsg.ToCString());
206 && theCaps->contextStereo)
208 TCollection_ExtendedString aMsg("OpenGl_Window::CreateWindow: QuadBuffer is unavailable!");
209 myGlContext->PushMessage (GL_DEBUG_SOURCE_APPLICATION, GL_DEBUG_TYPE_OTHER, 0, GL_DEBUG_SEVERITY_LOW, aMsg);
212 && !theCaps->contextCompatible)
214 TCollection_ExtendedString aMsg("OpenGl_Window::CreateWindow: core profile creation failed.");
215 myGlContext->PushMessage (GL_DEBUG_SOURCE_APPLICATION, GL_DEBUG_TYPE_PORTABILITY, 0, GL_DEBUG_SEVERITY_LOW, aMsg);
218 NSView* aView = (NSView* )myPlatformWindow->NativeHandle();
219 [aGLContext setView: aView];
220 isCore = (aTryCore == 1);
223 myGlContext->Init (aGLContext, isCore);
226 myGlContext->Share (theShareCtx);
227 myGlContext->SetSwapInterval (mySwapInterval);
231 // =======================================================================
232 // function : ~OpenGl_Window
234 // =======================================================================
235 OpenGl_Window::~OpenGl_Window()
238 || myGlContext.IsNull())
240 myGlContext.Nullify();
244 #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
245 myGlContext.Nullify();
246 [EAGLContext setCurrentContext: NULL];
249 NSOpenGLContext* aGLCtx = myGlContext->myGContext;
250 myGlContext.Nullify();
252 [NSOpenGLContext clearCurrentContext];
253 [aGLCtx clearDrawable];
258 // =======================================================================
260 // purpose : call_subr_resize
261 // =======================================================================
262 void OpenGl_Window::Resize()
264 // If the size is not changed - do nothing
265 Standard_Integer aWidthPt = 0;
266 Standard_Integer aHeightPt = 0;
267 myPlatformWindow->Size (aWidthPt, aHeightPt);
268 if (myWidthPt == aWidthPt
269 && myHeightPt == aHeightPt)
271 #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
274 // check backing store change (moving to another screen)
275 NSOpenGLContext* aGLCtx = myGlContext->myGContext;
276 NSView* aView = [aGLCtx view];
277 if (![aView respondsToSelector: @selector(convertSizeToBacking:)])
282 NSRect aBounds = [aView bounds];
283 NSSize aRes = [aView convertSizeToBacking: aBounds.size];
284 if (myWidth == Standard_Integer(aRes.width)
285 && myHeight == Standard_Integer(aRes.height))
292 myWidthPt = aWidthPt;
293 myHeightPt = aHeightPt;
298 // =======================================================================
301 // =======================================================================
302 void OpenGl_Window::Init()
309 #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
310 Handle(OpenGl_FrameBuffer) aDefFbo = myGlContext->SetDefaultFrameBuffer (NULL);
311 if (!aDefFbo.IsNull())
313 aDefFbo->Release (myGlContext.operator->());
317 aDefFbo = new OpenGl_FrameBuffer();
322 EAGLContext* aGLCtx = myGlContext->myGContext;
323 CAEAGLLayer* anEaglLayer = (CAEAGLLayer* )myUIView.layer;
324 GLuint aWinRBColor = 0;
325 ::glGenRenderbuffers (1, &aWinRBColor);
326 ::glBindRenderbuffer (GL_RENDERBUFFER, aWinRBColor);
327 [aGLCtx renderbufferStorage: GL_RENDERBUFFER fromDrawable: anEaglLayer];
328 ::glGetRenderbufferParameteriv (GL_RENDERBUFFER, GL_RENDERBUFFER_WIDTH, &myWidth);
329 ::glGetRenderbufferParameteriv (GL_RENDERBUFFER, GL_RENDERBUFFER_HEIGHT, &myHeight);
330 ::glBindRenderbuffer (GL_RENDERBUFFER, 0);
332 if (!aDefFbo->InitWithRB (myGlContext, Graphic3d_Vec2i (myWidth, myHeight), GL_RGBA8, GL_DEPTH24_STENCIL8, aWinRBColor))
334 TCollection_AsciiString aMsg ("OpenGl_Window::CreateWindow: default FBO creation failed");
335 throw Aspect_GraphicDeviceDefinitionError(aMsg.ToCString());
341 if (!aDefFbo->InitWrapper (myGlContext))
343 TCollection_AsciiString aMsg ("OpenGl_Window::CreateWindow: default FBO wrapper creation failed");
344 throw Aspect_GraphicDeviceDefinitionError(aMsg.ToCString());
348 myWidth = aDefFbo->GetVPSizeX();
349 myHeight = aDefFbo->GetVPSizeY();
351 myGlContext->SetDefaultFrameBuffer (aDefFbo);
352 aDefFbo->BindBuffer (myGlContext);
355 NSOpenGLContext* aGLCtx = myGlContext->myGContext;
356 NSView* aView = [aGLCtx view];
357 NSRect aBounds = [aView bounds];
359 // we should call this method each time when window is resized
362 if ([aView respondsToSelector: @selector(convertSizeToBacking:)])
364 NSSize aRes = [aView convertSizeToBacking: aBounds.size];
365 myWidth = Standard_Integer(aRes.width);
366 myHeight = Standard_Integer(aRes.height);
370 myWidth = Standard_Integer(aBounds.size.width);
371 myHeight = Standard_Integer(aBounds.size.height);
373 myWidthPt = Standard_Integer(aBounds.size.width);
374 myHeightPt = Standard_Integer(aBounds.size.height);
377 ::glDisable (GL_DITHER);
378 ::glDisable (GL_SCISSOR_TEST);
379 ::glViewport (0, 0, myWidth, myHeight);
380 #if !defined(GL_ES_VERSION_2_0)
381 ::glDrawBuffer (GL_BACK);
382 if (myGlContext->core11ffp != NULL)
384 ::glMatrixMode (GL_MODELVIEW);
389 // =======================================================================
390 // function : SetSwapInterval
392 // =======================================================================
393 void OpenGl_Window::SetSwapInterval (Standard_Boolean theToForceNoSync)
395 const Standard_Integer aSwapInterval = theToForceNoSync ? 0 : myGlContext->caps->swapInterval;
396 if (mySwapInterval != aSwapInterval)
398 mySwapInterval = aSwapInterval;
399 myGlContext->SetSwapInterval (mySwapInterval);