renderspu_cocoa_helper.m@ 49294

Last change on this file since 49294 was 49294, checked in by vboxsync, 11 years ago
crOpenGL: fix 2D crash on shutdown
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File size: 59.7 KB

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1	/* $Id: renderspu_cocoa_helper.m 49294 2013-10-25 16:02:21Z vboxsync $ */
2	/** @file
3	* VirtualBox OpenGL Cocoa Window System Helper Implementation.
4	*/
5
6	/*
7	* Copyright (C) 2009-2012 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18	#include "renderspu_cocoa_helper.h"
19
20	#import <Cocoa/Cocoa.h>
21	#undef PVM
22
23	#include "chromium.h" /* For the visual bits of chromium */
24
25	#include <iprt/thread.h>
26	#include <iprt/string.h>
27	#include <iprt/mem.h>
28	#include <iprt/time.h>
29	#include <iprt/assert.h>
30
31	#include <cr_vreg.h>
32	#include <cr_error.h>
33	#include <cr_blitter.h>
34	#ifdef VBOX_WITH_CRDUMPER_THUMBNAIL
35	# include <cr_pixeldata.h>
36	#endif
37
38
39	#include "renderspu.h"
40
41	/** @page pg_opengl_cocoa OpenGL - Cocoa Window System Helper
42	*
43	* How this works:
44	* In general it is not so easy like on the other platforms, cause Cocoa
45	* doesn't support any clipping of already painted stuff. In Mac OS X there is
46	* the concept of translucent canvas's e.g. windows and there it is just
47	* painted what should be visible to the user. Unfortunately this isn't the
48	* concept of chromium. Therefor I reroute all OpenGL operation from the guest
49	* to a frame buffer object (FBO). This is a OpenGL extension, which is
50	* supported by all OS X versions we support (AFAIC tell). Of course the guest
51	* doesn't know that and we have to make sure that the OpenGL state always is
52	* in the right state to paint into the FBO and not to the front/back buffer.
53	* Several functions below (like cocoaBindFramebufferEXT, cocoaGetIntegerv,
54	* ...) doing this. When a swap or finish is triggered by the guest, the
55	* content (which is already bound to an texture) is painted on the screen
56	* within a separate OpenGL context. This allows the usage of the same
57	* resources (texture ids, buffers ...) but at the same time having an
58	* different internal OpenGL state. Another advantage is that we can paint a
59	* thumbnail of the current output in a much more smaller (GPU accelerated
60	* scale) version on a third context and use glReadPixels to get the actual
61	* data. glReadPixels is a very slow operation, but as we just use a much more
62	* smaller image, we can handle it (anyway this is only done 5 times per
63	* second).
64	*
65	* Other things to know:
66	* - If the guest request double buffering, we have to make sure there are two
67	* buffers. We use the same FBO with 2 color attachments. Also glDrawBuffer
68	* and glReadBuffer is intercepted to make sure it is painted/read to/from
69	* the correct buffers. On swap our buffers are swapped and not the
70	* front/back buffer.
71	* - If the guest request a depth/stencil buffer, a combined render buffer for
72	* this is created.
73	* - If the size of the guest OpenGL window changes, all FBO's, textures, ...
74	* need to be recreated.
75	* - We need to track any changes to the parent window
76	* (create/destroy/move/resize). The various classes like OverlayHelperView,
77	* OverlayWindow, ... are there for.
78	* - The HGCM service runs on a other thread than the Main GUI. Keeps this
79	* always in mind (see e.g. performSelectorOnMainThread in renderFBOToView)
80	* - We make heavy use of late binding. We can not be sure that the GUI (or any
81	* other third party GUI), overwrite our NSOpenGLContext. So we always ask if
82	* this is our own one, before use. Really neat concept of Objective-C/Cocoa
83	* ;)
84	*/
85
86	/* Debug macros */
87	#define FBO 1 /* Disable this to see how the output is without the FBO in the middle of the processing chain. */
88	#if 0
89	# define CR_RENDER_FORCE_PRESENT_MAIN_THREAD /* force present schedule to main thread */
90	# define SHOW_WINDOW_BACKGROUND 1 /* Define this to see the window background even if the window is clipped */
91	# define DEBUG_VERBOSE /* Define this to get some debug info about the messages flow. */
92	#endif
93
94	#ifdef DEBUG_misha
95	# define DEBUG_MSG(text) \
96	printf text
97	# define DEBUG_WARN(text) do { \
98	crWarning text ; \
99	Assert(0); \
100	} while (0)
101	#else
102	# define DEBUG_MSG(text) \
103	do {} while (0)
104	# define DEBUG_WARN(text) do { \
105	crWarning text ; \
106	} while (0)
107	#endif
108
109	#ifdef DEBUG_VERBOSE
110	# define DEBUG_MSG_1(text) \
111	DEBUG_MSG(text)
112	#else
113	# define DEBUG_MSG_1(text) \
114	do {} while (0)
115	#endif
116
117	#ifdef DEBUG_poetzsch
118	# define CHECK_GL_ERROR()\
119	do \
120	{ \
121	checkGLError(__FILE__, __LINE__); \
122	}while (0);
123
124	static void checkGLError(char *file, int line)
125	{
126	GLenum g = glGetError();
127	if (g != GL_NO_ERROR)
128	{
129	char *errStr;
130	switch (g)
131	{
132	case GL_INVALID_ENUM: errStr = RTStrDup("GL_INVALID_ENUM"); break;
133	case GL_INVALID_VALUE: errStr = RTStrDup("GL_INVALID_VALUE"); break;
134	case GL_INVALID_OPERATION: errStr = RTStrDup("GL_INVALID_OPERATION"); break;
135	case GL_STACK_OVERFLOW: errStr = RTStrDup("GL_STACK_OVERFLOW"); break;
136	case GL_STACK_UNDERFLOW: errStr = RTStrDup("GL_STACK_UNDERFLOW"); break;
137	case GL_OUT_OF_MEMORY: errStr = RTStrDup("GL_OUT_OF_MEMORY"); break;
138	case GL_TABLE_TOO_LARGE: errStr = RTStrDup("GL_TABLE_TOO_LARGE"); break;
139	default: errStr = RTStrDup("UNKNOWN"); break;
140	}
141	DEBUG_MSG(("%s:%d: glError %d (%s)\n", file, line, g, errStr));
142	RTMemFree(errStr);
143	}
144	}
145	#else
146	# define CHECK_GL_ERROR()\
147	do {} while (0)
148	#endif
149
150	#define GL_SAVE_STATE \
151	do \
152	{ \
153	glPushAttrib(GL_ALL_ATTRIB_BITS); \
154	glPushClientAttrib(GL_CLIENT_ALL_ATTRIB_BITS); \
155	glMatrixMode(GL_PROJECTION); \
156	glPushMatrix(); \
157	glMatrixMode(GL_TEXTURE); \
158	glPushMatrix(); \
159	glMatrixMode(GL_COLOR); \
160	glPushMatrix(); \
161	glMatrixMode(GL_MODELVIEW); \
162	glPushMatrix(); \
163	} \
164	while(0);
165
166	#define GL_RESTORE_STATE \
167	do \
168	{ \
169	glMatrixMode(GL_MODELVIEW); \
170	glPopMatrix(); \
171	glMatrixMode(GL_COLOR); \
172	glPopMatrix(); \
173	glMatrixMode(GL_TEXTURE); \
174	glPopMatrix(); \
175	glMatrixMode(GL_PROJECTION); \
176	glPopMatrix(); \
177	glPopClientAttrib(); \
178	glPopAttrib(); \
179	} \
180	while(0);
181
182	static NSOpenGLContext * vboxCtxGetCurrent()
183	{
184	GET_CONTEXT(pCtxInfo);
185	if (pCtxInfo)
186	{
187	Assert(pCtxInfo->context);
188	return pCtxInfo->context;
189	}
190
191	return nil;
192	}
193
194	static bool vboxCtxSyncCurrentInfo()
195	{
196	GET_CONTEXT(pCtxInfo);
197	NSOpenGLContext *pCtx = [NSOpenGLContext currentContext];
198	NSView *pView = pCtx ? [pCtx view] : nil;
199	bool fAdjusted = false;
200	if (pCtxInfo)
201	{
202	WindowInfo *pWinInfo = pCtxInfo->currentWindow;
203	Assert(pWinInfo);
204	if (pCtxInfo->context != pCtx
205	\|\| pWinInfo->window != pView)
206	{
207	renderspu_SystemMakeCurrent(pWinInfo, 0, pCtxInfo);
208	fAdjusted = true;
209	}
210	}
211	else
212	{
213	if (pCtx)
214	{
215	[NSOpenGLContext clearCurrentContext];
216	fAdjusted = true;
217	}
218	}
219
220	return fAdjusted;
221	}
222
223	typedef struct VBOX_CR_RENDER_CTX_INFO
224	{
225	bool fIsValid;
226	NSOpenGLContext *pCtx;
227	NSView *pView;
228	} VBOX_CR_RENDER_CTX_INFO, *PVBOX_CR_RENDER_CTX_INFO;
229
230	static void vboxCtxEnter(NSOpenGLContext*pCtx, PVBOX_CR_RENDER_CTX_INFO pCtxInfo)
231	{
232	NSOpenGLContext *pOldCtx = vboxCtxGetCurrent();
233	NSView *pOldView = (pOldCtx ? [pOldCtx view] : nil);
234	NSView *pView = [pCtx view];
235	bool fNeedCtxSwitch = (pOldCtx != pCtx \|\| pOldView != pView);
236	Assert(pCtx);
237	// Assert(pOldCtx == m_pGLCtx);
238	// Assert(pOldView == self);
239	// Assert(fNeedCtxSwitch);
240	if (fNeedCtxSwitch)
241	{
242	if(pOldCtx != nil)
243	glFlush();
244
245	[pCtx makeCurrentContext];
246
247	pCtxInfo->fIsValid = true;
248	pCtxInfo->pCtx = pOldCtx;
249	pCtxInfo->pView = pView;
250	}
251	else
252	{
253	pCtxInfo->fIsValid = false;
254	}
255	}
256
257	static void vboxCtxLeave(PVBOX_CR_RENDER_CTX_INFO pCtxInfo)
258	{
259	if (pCtxInfo->fIsValid)
260	{
261	NSOpenGLContext *pOldCtx = pCtxInfo->pCtx;
262	NSView *pOldView = pCtxInfo->pView;
263
264	glFlush();
265	if (pOldCtx != nil)
266	{
267	if ([pOldCtx view] != pOldView)
268	{
269	[pOldCtx setView: pOldView];
270	}
271
272	[pOldCtx makeCurrentContext];
273
274	#ifdef DEBUG
275	{
276	NSOpenGLContext *pTstOldCtx = [NSOpenGLContext currentContext];
277	NSView *pTstOldView = (pTstOldCtx ? [pTstOldCtx view] : nil);
278	Assert(pTstOldCtx == pOldCtx);
279	Assert(pTstOldView == pOldView);
280	}
281	#endif
282	}
283	else
284	{
285	[NSOpenGLContext clearCurrentContext];
286	}
287	}
288	}
289
290	/** Custom OpenGL context class.
291	*
292	* This implementation doesn't allow to set a view to the
293	* context, but save the view for later use. Also it saves a copy of the
294	* pixel format used to create that context for later use. */
295	@interface OverlayOpenGLContext: NSOpenGLContext
296	{
297	@private
298	NSOpenGLPixelFormat *m_pPixelFormat;
299	NSView *m_pView;
300	}
301	- (NSOpenGLPixelFormat*)openGLPixelFormat;
302	@end
303
304	@class DockOverlayView;
305
306	/** The custom view class.
307	* This is the main class of the cocoa OpenGL implementation. It
308	* manages an frame buffer object for the rendering of the guest
309	* applications. The guest applications render in this frame buffer which
310	* is bind to an OpenGL texture. To display the guest content, an secondary
311	* shared OpenGL context of the main OpenGL context is created. The secondary
312	* context is marked as non opaque & the texture is displayed on an object
313	* which is composed out of the several visible region rectangles. */
314	@interface OverlayView: NSView
315	{
316	@private
317	NSView *m_pParentView;
318	NSWindow *m_pOverlayWin;
319
320	NSOpenGLContext *m_pGLCtx;
321	NSOpenGLContext *m_pSharedGLCtx;
322	RTTHREAD mThread;
323
324	GLuint m_FBOId;
325
326	/** The corresponding dock tile view of this OpenGL view & all helper
327	* members. */
328	DockOverlayView *m_DockTileView;
329
330	GLfloat m_FBOThumbScaleX;
331	GLfloat m_FBOThumbScaleY;
332	uint64_t m_uiDockUpdateTime;
333
334	/* For clipping */
335	GLint m_cClipRects;
336	GLint *m_paClipRects;
337
338	/* Position/Size tracking */
339	NSPoint m_Pos;
340	NSSize m_Size;
341
342	/** This is necessary for clipping on the root window */
343	NSRect m_RootRect;
344	float m_yInvRootOffset;
345
346	CR_BLITTER *m_pBlitter;
347	WindowInfo *m_pWinInfo;
348	bool m_fNeedViewportUpdate;
349	bool m_fNeedCtxUpdate;
350	}
351	- (id)initWithFrame:(NSRect)frame thread:(RTTHREAD)aThread parentView:(NSView)pParentView winInfo:(WindowInfo)pWinInfo;
352	- (void)setGLCtx:(NSOpenGLContext*)pCtx;
353	- (NSOpenGLContext*)glCtx;
354
355	- (void)setParentView: (NSView*)view;
356	- (NSView*)parentView;
357	- (void)setOverlayWin: (NSWindow*)win;
358	- (NSWindow*)overlayWin;
359
360	- (void)setPos:(NSPoint)pos;
361	- (NSPoint)pos;
362	- (void)setSize:(NSSize)size;
363	- (NSSize)size;
364	- (void)updateViewportCS;
365	- (void)reshape;
366	- (void)reshapeLocked;
367
368	- (void)createDockTile;
369	- (void)deleteDockTile;
370
371	- (void)makeCurrentFBO;
372	- (void)swapFBO;
373	- (void)vboxTryDraw;
374	- (void)vboxTryDrawUI;
375	- (void)vboxPresent:(PVBOXVR_SCR_COMPOSITOR)pCompositor;
376	- (void)vboxPresentCS:(PVBOXVR_SCR_COMPOSITOR)pCompositor;
377	- (void)vboxPresentToDockTileCS:(PVBOXVR_SCR_COMPOSITOR)pCompositor;
378	- (void)vboxPresentToViewCS:(PVBOXVR_SCR_COMPOSITOR)pCompositor;
379	- (void)presentComposition:(PVBOXVR_SCR_COMPOSITOR_ENTRY)pChangedEntry;
380	- (void)vboxBlitterSyncWindow;
381
382	- (void)clearVisibleRegions;
383	- (void)setVisibleRegions:(GLint)cRects paRects:(const GLint*)paRects;
384
385	- (NSView*)dockTileScreen;
386	- (void)reshapeDockTile;
387	- (void)cleanupData;
388	@end
389
390	/** Helper view.
391	*
392	* This view is added as a sub view of the parent view to track
393	* main window changes. Whenever the main window is changed
394	* (which happens on fullscreen/seamless entry/exit) the overlay
395	* window is informed & can add them self as a child window
396	* again. */
397	@class OverlayWindow;
398	@interface OverlayHelperView: NSView
399	{
400	@private
401	OverlayWindow *m_pOverlayWindow;
402	}
403	-(id)initWithOverlayWindow:(OverlayWindow*)pOverlayWindow;
404	@end
405
406	/** Custom window class.
407	*
408	* This is the overlay window which contains our custom NSView.
409	* Its a direct child of the Qt Main window. It marks its background
410	* transparent & non opaque to make clipping possible. It also disable mouse
411	* events and handle frame change events of the parent view. */
412	@interface OverlayWindow: NSWindow
413	{
414	@private
415	NSView *m_pParentView;
416	OverlayView *m_pOverlayView;
417	OverlayHelperView *m_pOverlayHelperView;
418	NSThread *m_Thread;
419	}
420	- (id)initWithParentView:(NSView)pParentView overlayView:(OverlayView)pOverlayView;
421	- (void)parentWindowFrameChanged:(NSNotification *)note;
422	- (void)parentWindowChanged:(NSWindow*)pWindow;
423	@end
424
425	@interface DockOverlayView: NSView
426	{
427	NSBitmapImageRep *m_ThumbBitmap;
428	NSImage *m_ThumbImage;
429	NSLock *m_Lock;
430	}
431	- (void)dealloc;
432	- (void)cleanup;
433	- (void)lock;
434	- (void)unlock;
435	- (void)setFrame:(NSRect)frame;
436	- (void)drawRect:(NSRect)aRect;
437	- (NSBitmapImageRep*)thumbBitmap;
438	- (NSImage*)thumbImage;
439	@end
440
441	@implementation DockOverlayView
442	- (id)init
443	{
444	self = [super init];
445
446	if (self)
447	{
448	/* We need a lock cause the thumb image could be accessed from the main
449	* thread when someone is calling display on the dock tile & from the
450	* OpenGL thread when the thumbnail is updated. */
451	m_Lock = [[NSLock alloc] init];
452	}
453
454	return self;
455	}
456
457	- (void)dealloc
458	{
459	[self cleanup];
460	[m_Lock release];
461
462	[super dealloc];
463	}
464
465	- (void)cleanup
466	{
467	if (m_ThumbImage != nil)
468	{
469	[m_ThumbImage release];
470	m_ThumbImage = nil;
471	}
472	if (m_ThumbBitmap != nil)
473	{
474	[m_ThumbBitmap release];
475	m_ThumbBitmap = nil;
476	}
477	}
478
479	- (void)lock
480	{
481	[m_Lock lock];
482	}
483
484	- (void)unlock
485	{
486	[m_Lock unlock];
487	}
488
489	- (void)setFrame:(NSRect)frame
490	{
491	[super setFrame:frame];
492
493	[self lock];
494	[self cleanup];
495
496	if ( frame.size.width > 0
497	&& frame.size.height > 0)
498	{
499	/* Create a buffer for our thumbnail image. Its in the size of this view. */
500	m_ThumbBitmap = [[NSBitmapImageRep alloc] initWithBitmapDataPlanes:NULL
501	pixelsWide:frame.size.width
502	pixelsHigh:frame.size.height
503	bitsPerSample:8
504	samplesPerPixel:4
505	hasAlpha:YES
506	isPlanar:NO
507	colorSpaceName:NSDeviceRGBColorSpace
508	bitmapFormat:NSAlphaFirstBitmapFormat
509	bytesPerRow:frame.size.width * 4
510	bitsPerPixel:8 * 4];
511	m_ThumbImage = [[NSImage alloc] initWithSize:[m_ThumbBitmap size]];
512	[m_ThumbImage addRepresentation:m_ThumbBitmap];
513	}
514	[self unlock];
515	}
516
517	- (BOOL)isFlipped
518	{
519	return YES;
520	}
521
522	- (void)drawRect:(NSRect)aRect
523	{
524	NSRect frame;
525
526	[self lock];
527	#ifdef SHOW_WINDOW_BACKGROUND
528	[[NSColor colorWithCalibratedRed:1.0 green:0.0 blue:0.0 alpha:0.7] set];
529	frame = [self frame];
530	[NSBezierPath fillRect:NSMakeRect(0, 0, frame.size.width, frame.size.height)];
531	#endif /* SHOW_WINDOW_BACKGROUND */
532	if (m_ThumbImage != nil)
533	[m_ThumbImage drawAtPoint:NSMakePoint(0, 0) fromRect:NSZeroRect operation:NSCompositeSourceOver fraction:1.0];
534	[self unlock];
535	}
536
537	- (NSBitmapImageRep*)thumbBitmap
538	{
539	return m_ThumbBitmap;
540	}
541
542	- (NSImage*)thumbImage
543	{
544	return m_ThumbImage;
545	}
546	@end
547
548	/********************************************************************************
549	*
550	* OverlayOpenGLContext class implementation
551	*
552	********************************************************************************/
553	@implementation OverlayOpenGLContext
554
555	-(id)initWithFormat:(NSOpenGLPixelFormat)format shareContext:(NSOpenGLContext)share
556	{
557	m_pPixelFormat = NULL;
558	m_pView = NULL;
559
560	self = [super initWithFormat:format shareContext:share];
561	if (self)
562	m_pPixelFormat = format;
563
564	DEBUG_MSG(("OCTX(%p): init OverlayOpenGLContext\n", (void*)self));
565
566	return self;
567	}
568
569	- (void)dealloc
570	{
571	DEBUG_MSG(("OCTX(%p): dealloc OverlayOpenGLContext\n", (void*)self));
572
573	[m_pPixelFormat release];
574
575	[super dealloc];
576	}
577
578	-(bool)isDoubleBuffer
579	{
580	GLint val;
581	[m_pPixelFormat getValues:&val forAttribute:NSOpenGLPFADoubleBuffer forVirtualScreen:0];
582	return val == GL_TRUE ? YES : NO;
583	}
584
585	-(void)setView:(NSView*)view
586	{
587	DEBUG_MSG(("OCTX(%p): setView: new view: %p\n", (void)self, (void)view));
588
589	#if 1 /* def FBO */
590	m_pView = view;;
591	#else
592	[super setView: view];
593	#endif
594	}
595
596	-(NSView*)view
597	{
598	#if 1 /* def FBO */
599	return m_pView;
600	#else
601	return [super view];
602	#endif
603	}
604
605	-(void)clearDrawable
606	{
607	DEBUG_MSG(("OCTX(%p): clearDrawable\n", (void*)self));
608
609	m_pView = NULL;;
610	[super clearDrawable];
611	}
612
613	-(NSOpenGLPixelFormat*)openGLPixelFormat
614	{
615	return m_pPixelFormat;
616	}
617
618	@end
619
620	/********************************************************************************
621	*
622	* OverlayHelperView class implementation
623	*
624	********************************************************************************/
625	@implementation OverlayHelperView
626
627	-(id)initWithOverlayWindow:(OverlayWindow*)pOverlayWindow
628	{
629	self = [super initWithFrame:NSZeroRect];
630
631	m_pOverlayWindow = pOverlayWindow;
632
633	DEBUG_MSG(("OHVW(%p): init OverlayHelperView\n", (void*)self));
634
635	return self;
636	}
637
638	-(void)viewDidMoveToWindow
639	{
640	DEBUG_MSG(("OHVW(%p): viewDidMoveToWindow: new win: %p\n", (void)self, (void)[self window]));
641
642	[m_pOverlayWindow parentWindowChanged:[self window]];
643	}
644
645	@end
646
647	/********************************************************************************
648	*
649	* OverlayWindow class implementation
650	*
651	********************************************************************************/
652	@implementation OverlayWindow
653
654	- (id)initWithParentView:(NSView)pParentView overlayView:(OverlayView)pOverlayView
655	{
656	NSWindow *pParentWin = nil;
657
658	if((self = [super initWithContentRect:NSZeroRect styleMask:NSBorderlessWindowMask backing:NSBackingStoreBuffered defer:NO]))
659	{
660	m_pParentView = pParentView;
661	m_pOverlayView = pOverlayView;
662	m_Thread = [NSThread currentThread];
663
664	[m_pOverlayView setOverlayWin: self];
665
666	m_pOverlayHelperView = [[OverlayHelperView alloc] initWithOverlayWindow:self];
667	/* Add the helper view as a child of the parent view to get notifications */
668	[pParentView addSubview:m_pOverlayHelperView];
669
670	/* Make sure this window is transparent */
671	#ifdef SHOW_WINDOW_BACKGROUND
672	/* For debugging */
673	[self setBackgroundColor:[NSColor colorWithCalibratedRed:1.0 green:0.0 blue:0.0 alpha:0.7]];
674	#else
675	[self setBackgroundColor:[NSColor clearColor]];
676	#endif
677	[self setOpaque:NO];
678	[self setAlphaValue:.999];
679	/* Disable mouse events for this window */
680	[self setIgnoresMouseEvents:YES];
681
682	pParentWin = [m_pParentView window];
683
684	/* Initial set the position to the parents view top/left (Compiz fix). */
685	[self setFrameOrigin:
686	[pParentWin convertBaseToScreen:
687	[m_pParentView convertPoint:NSZeroPoint toView:nil]]];
688
689	/* Set the overlay view as our content view */
690	[self setContentView:m_pOverlayView];
691
692	/* Add ourself as a child to the parent views window. Note: this has to
693	* be done last so that everything else is setup in
694	* parentWindowChanged. */
695	[pParentWin addChildWindow:self ordered:NSWindowAbove];
696	}
697	DEBUG_MSG(("OWIN(%p): init OverlayWindow\n", (void*)self));
698
699	return self;
700	}
701
702	- (void)dealloc
703	{
704	DEBUG_MSG(("OWIN(%p): dealloc OverlayWindow\n", (void*)self));
705
706	[[NSNotificationCenter defaultCenter] removeObserver:self];
707
708	[m_pOverlayHelperView removeFromSuperview];
709	[m_pOverlayHelperView release];
710
711	[super dealloc];
712	}
713
714	- (void)parentWindowFrameChanged:(NSNotification*)pNote
715	{
716	DEBUG_MSG(("OWIN(%p): parentWindowFrameChanged\n", (void*)self));
717
718	/* Reposition this window with the help of the OverlayView. Perform the
719	* call in the OpenGL thread. */
720	/*
721	[m_pOverlayView performSelector:@selector(reshape) onThread:m_Thread withObject:nil waitUntilDone:YES];
722	*/
723
724	[m_pOverlayView reshape];
725	}
726
727	- (void)parentWindowChanged:(NSWindow*)pWindow
728	{
729	DEBUG_MSG(("OWIN(%p): parentWindowChanged\n", (void*)self));
730
731	[[NSNotificationCenter defaultCenter] removeObserver:self];
732
733	if(pWindow != nil)
734	{
735	/* Ask to get notifications when our parent window frame changes. */
736	[[NSNotificationCenter defaultCenter]
737	addObserver:self
738	selector:@selector(parentWindowFrameChanged:)
739	name:NSWindowDidResizeNotification
740	object:pWindow];
741	/* Add us self as child window */
742	[pWindow addChildWindow:self ordered:NSWindowAbove];
743	/* Reshape the overlay view after a short waiting time to let the main
744	* window resize itself properly. */
745	/*
746	[m_pOverlayView performSelector:@selector(reshape) withObject:nil afterDelay:0.2];
747	[NSTimer scheduledTimerWithTimeInterval:0.2 target:m_pOverlayView selector:@selector(reshape) userInfo:nil repeats:NO];
748	*/
749	[m_pOverlayView reshape];
750	}
751	}
752
753	@end
754
755	/********************************************************************************
756	*
757	* OverlayView class implementation
758	*
759	********************************************************************************/
760	@implementation OverlayView
761
762	- (id)initWithFrame:(NSRect)frame thread:(RTTHREAD)aThread parentView:(NSView)pParentView winInfo:(WindowInfo)pWinInfo
763	{
764	m_pParentView = pParentView;
765	/* Make some reasonable defaults */
766	m_pGLCtx = nil;
767	m_pSharedGLCtx = nil;
768	mThread = aThread;
769	m_FBOId = 0;
770	m_cClipRects = 0;
771	m_paClipRects = NULL;
772	m_Pos = NSZeroPoint;
773	m_Size = NSMakeSize(1, 1);
774	m_RootRect = NSMakeRect(0, 0, m_Size.width, m_Size.height);
775	m_yInvRootOffset = 0;
776	m_pBlitter = nil;
777	m_pWinInfo = pWinInfo;
778	m_fNeedViewportUpdate = true;
779	m_fNeedCtxUpdate = true;
780
781	self = [super initWithFrame:frame];
782
783	DEBUG_MSG(("OVIW(%p): init OverlayView\n", (void*)self));
784
785	return self;
786	}
787
788	- (void)cleanupData
789	{
790	[self deleteDockTile];
791
792	if (m_pGLCtx)
793	{
794	if ([m_pGLCtx view] == self)
795	[m_pGLCtx clearDrawable];
796
797	m_pGLCtx = nil;
798	}
799	if (m_pSharedGLCtx)
800	{
801	if ([m_pSharedGLCtx view] == self)
802	[m_pSharedGLCtx clearDrawable];
803
804	[m_pSharedGLCtx release];
805
806	m_pSharedGLCtx = nil;
807
808	CrBltTerm(m_pBlitter);
809
810	m_pBlitter = nil;
811	}
812
813	[self clearVisibleRegions];
814	}
815
816	- (void)dealloc
817	{
818	DEBUG_MSG(("OVIW(%p): dealloc OverlayView\n", (void*)self));
819
820	[self cleanupData];
821
822	[super dealloc];
823	}
824
825	- (void)drawRect:(NSRect)aRect
826	{
827	[self vboxTryDrawUI];
828	}
829
830	- (void)setGLCtx:(NSOpenGLContext*)pCtx
831	{
832	DEBUG_MSG(("OVIW(%p): setGLCtx: new ctx: %p\n", (void)self, (void)pCtx));
833	if (m_pGLCtx == pCtx)
834	return;
835
836	/* ensure the context drawable is cleared to avoid holding a reference to inexistent view */
837	if (m_pGLCtx)
838	[m_pGLCtx clearDrawable];
839
840	m_pGLCtx = pCtx;
841	}
842
843	- (NSOpenGLContext*)glCtx
844	{
845	return m_pGLCtx;
846	}
847
848	- (NSView*)parentView
849	{
850	return m_pParentView;
851	}
852
853	- (void)setParentView:(NSView*)pView
854	{
855	DEBUG_MSG(("OVIW(%p): setParentView: new view: %p\n", (void)self, (void)pView));
856
857	m_pParentView = pView;
858	}
859
860	- (void)setOverlayWin:(NSWindow*)pWin
861	{
862	DEBUG_MSG(("OVIW(%p): setOverlayWin: new win: %p\n", (void)self, (void)pWin));
863
864	m_pOverlayWin = pWin;
865	}
866
867	- (NSWindow*)overlayWin
868	{
869	return m_pOverlayWin;
870	}
871
872	- (void)setPos:(NSPoint)pos
873	{
874	DEBUG_MSG(("OVIW(%p): setPos: new pos: %d, %d\n", (void*)self, (int)pos.x, (int)pos.y));
875
876	m_Pos = pos;
877
878	[self reshape];
879
880	/* we need to redwar on regions change, however the compositor now is cleared
881	* because all compositor&window data-related modifications are performed with compositor cleared
882	* the renderspu client will re-set the compositor after modifications are complete
883	* this way we indicate renderspu generic code not to ignore the empty compositor */
884	/* generally this should not be needed for setPos because compositor should not be zeroed with it,
885	* in any way setting this flag here should not hurt as it will be re-set on next present */
886	m_pWinInfo->fCompositorPresentEmpty = GL_TRUE;
887	}
888
889	- (NSPoint)pos
890	{
891	return m_Pos;
892	}
893
894	- (void)setSize:(NSSize)size
895	{
896	NSOpenGLContext *pCurCtx;
897	NSView *pCurView;
898	m_Size = size;
899
900	DEBUG_MSG(("OVIW(%p): setSize: new size: %dx%d\n", (void*)self, (int)size.width, (int)size.height));
901	[self reshape];
902	[self createDockTile];
903	/* have to rebind GL_TEXTURE_RECTANGLE_ARB as m_FBOTexId could be changed in updateFBO call */
904	m_fNeedViewportUpdate = true;
905	pCurCtx = [NSOpenGLContext currentContext];
906	if (pCurCtx && pCurCtx == m_pGLCtx && (pCurView = [pCurCtx view]) == self)
907	{
908	[m_pGLCtx update];
909	m_fNeedCtxUpdate = false;
910	}
911	else
912	{
913	/* do it in a lazy way */
914	m_fNeedCtxUpdate = true;
915	}
916
917	/* we need to redwar on regions change, however the compositor now is cleared
918	* because all compositor&window data-related modifications are performed with compositor cleared
919	* the renderspu client will re-set the compositor after modifications are complete
920	* this way we indicate renderspu generic code not to ignore the empty compositor */
921	/* generally this should not be needed for setSize because compositor should not be zeroed with it,
922	* in any way setting this flag here should not hurt as it will be re-set on next present */
923	m_pWinInfo->fCompositorPresentEmpty = GL_TRUE;
924	}
925
926	- (NSSize)size
927	{
928	return m_Size;
929	}
930
931	- (void)updateViewportCS
932	{
933	DEBUG_MSG(("OVIW(%p): updateViewport\n", (void*)self));
934
935	/* Update the viewport for our OpenGL view */
936	[m_pSharedGLCtx update];
937
938	[self vboxBlitterSyncWindow];
939
940	/* Clear background to transparent */
941	glClearColor(0.0f, 0.0f, 0.0f, 0.0f);}
942
943	- (void)reshapeLocked
944	{
945	NSRect parentFrame = NSZeroRect;
946	NSPoint parentPos = NSZeroPoint;
947	NSPoint childPos = NSZeroPoint;
948	NSRect childFrame = NSZeroRect;
949	NSRect newFrame = NSZeroRect;
950
951	DEBUG_MSG(("OVIW(%p): reshape\n", (void*)self));
952
953	/* Getting the right screen coordinates of the parents frame is a little bit
954	* complicated. */
955	parentFrame = [m_pParentView frame];
956	parentPos = [[m_pParentView window] convertBaseToScreen:[[m_pParentView superview] convertPointToBase:NSMakePoint(parentFrame.origin.x, parentFrame.origin.y + parentFrame.size.height)]];
957	parentFrame.origin.x = parentPos.x;
958	parentFrame.origin.y = parentPos.y;
959
960	/* Calculate the new screen coordinates of the overlay window. */
961	childPos = NSMakePoint(m_Pos.x, m_Pos.y + m_Size.height);
962	childPos = [[m_pParentView window] convertBaseToScreen:[[m_pParentView superview] convertPointToBase:childPos]];
963
964	/* Make a frame out of it. */
965	childFrame = NSMakeRect(childPos.x, childPos.y, m_Size.width, m_Size.height);
966
967	/* We have to make sure that the overlay window will not be displayed out
968	* of the parent window. So intersect both frames & use the result as the new
969	* frame for the window. */
970	newFrame = NSIntersectionRect(parentFrame, childFrame);
971
972	DEBUG_MSG(("[%#p]: parentFrame pos[%f : %f] size[%f : %f]\n",
973	(void*)self,
974	parentFrame.origin.x, parentFrame.origin.y,
975	parentFrame.size.width, parentFrame.size.height));
976	DEBUG_MSG(("[%#p]: childFrame pos[%f : %f] size[%f : %f]\n",
977	(void*)self,
978	childFrame.origin.x, childFrame.origin.y,
979	childFrame.size.width, childFrame.size.height));
980
981	DEBUG_MSG(("[%#p]: newFrame pos[%f : %f] size[%f : %f]\n",
982	(void*)self,
983	newFrame.origin.x, newFrame.origin.y,
984	newFrame.size.width, newFrame.size.height));
985
986	/* Later we have to correct the texture position in the case the window is
987	* out of the parents window frame. So save the shift values for later use. */
988	m_RootRect.origin.x = newFrame.origin.x - childFrame.origin.x;
989	m_RootRect.origin.y = childFrame.size.height + childFrame.origin.y - (newFrame.size.height + newFrame.origin.y);
990	m_RootRect.size = newFrame.size;
991	m_yInvRootOffset = newFrame.origin.y - childFrame.origin.y;
992
993	DEBUG_MSG(("[%#p]: m_RootRect pos[%f : %f] size[%f : %f]\n",
994	(void*)self,
995	m_RootRect.origin.x, m_RootRect.origin.y,
996	m_RootRect.size.width, m_RootRect.size.height));
997
998
999	/*
1000	NSScrollView *pScrollView = [[[m_pParentView window] contentView] enclosingScrollView];
1001	if (pScrollView)
1002	{
1003	NSRect scrollRect = [pScrollView documentVisibleRect];
1004	NSRect scrollRect = [m_pParentView visibleRect];
1005	printf ("sc rect: %d %d %d %d\n", (int) scrollRect.origin.x,(int) scrollRect.origin.y,(int) scrollRect.size.width,(int) scrollRect.size.height);
1006	NSRect b = [[m_pParentView superview] bounds];
1007	printf ("bound rect: %d %d %d %d\n", (int) b.origin.x,(int) b.origin.y,(int) b.size.width,(int) b.size.height);
1008	newFrame.origin.x += scrollRect.origin.x;
1009	newFrame.origin.y += scrollRect.origin.y;
1010	}
1011	*/
1012
1013	/* Set the new frame. */
1014	[[self window] setFrame:newFrame display:YES];
1015
1016	/* Inform the dock tile view as well */
1017	[self reshapeDockTile];
1018
1019	/* Make sure the context is updated according */
1020	/* [self updateViewport]; */
1021	if (m_pSharedGLCtx)
1022	{
1023	VBOX_CR_RENDER_CTX_INFO CtxInfo;
1024	vboxCtxEnter(m_pSharedGLCtx, &CtxInfo);
1025
1026	[self updateViewportCS];
1027
1028	vboxCtxLeave(&CtxInfo);
1029	}
1030	}
1031
1032	- (void)reshape
1033	{
1034	int rc = renderspuVBoxCompositorLock(m_pWinInfo);
1035	if (RT_SUCCESS(rc))
1036	{
1037	[self reshapeLocked];
1038	renderspuVBoxCompositorUnlock(m_pWinInfo);
1039	}
1040	}
1041
1042	- (void)createDockTile
1043	{
1044	NSView *pDockScreen = nil;
1045	[self deleteDockTile];
1046
1047	/* Is there a dock tile preview enabled in the GUI? If so setup a
1048	* additional thumbnail view for the dock tile. */
1049	pDockScreen = [self dockTileScreen];
1050	if (pDockScreen)
1051	{
1052	m_DockTileView = [[DockOverlayView alloc] init];
1053	[self reshapeDockTile];
1054	[pDockScreen addSubview:m_DockTileView];
1055	}
1056	}
1057
1058	- (void)deleteDockTile
1059	{
1060	if (m_DockTileView != nil)
1061	{
1062	[m_DockTileView removeFromSuperview];
1063	[m_DockTileView release];
1064	m_DockTileView = nil;
1065	}
1066	}
1067
1068	- (void)makeCurrentFBO
1069	{
1070	DEBUG_MSG(("OVIW(%p): makeCurrentFBO\n", (void*)self));
1071
1072	if (m_pGLCtx)
1073	{
1074	if ([m_pGLCtx view] != self)
1075	{
1076	/* We change the active view, so flush first */
1077	if([NSOpenGLContext currentContext] != 0)
1078	glFlush();
1079	[m_pGLCtx setView: self];
1080	CHECK_GL_ERROR();
1081	}
1082	/*
1083	if ([NSOpenGLContext currentContext] != m_pGLCtx)
1084	*/
1085	{
1086	[m_pGLCtx makeCurrentContext];
1087	CHECK_GL_ERROR();
1088	if (m_fNeedCtxUpdate == true)
1089	{
1090	[m_pGLCtx update];
1091	m_fNeedCtxUpdate = false;
1092	}
1093	}
1094
1095	if (!m_FBOId)
1096	{
1097	glGenFramebuffersEXT(1, &m_FBOId);
1098	Assert(m_FBOId);
1099	}
1100
1101	}
1102	}
1103
1104	- (void)vboxTryDraw
1105	{
1106	GLint opaque = 0;
1107	if ([self lockFocusIfCanDraw])
1108	{
1109	VBOXVR_SCR_COMPOSITOR *pCompositor = NULL;
1110	if (!m_pSharedGLCtx)
1111	{
1112	pCompositor = renderspuVBoxCompositorAcquire(m_pWinInfo);
1113	if (pCompositor)
1114	{
1115	Assert(!m_pBlitter);
1116	m_pBlitter = RTMemAlloc(sizeof (*m_pBlitter));
1117	if (m_pBlitter)
1118	{
1119	int rc = CrBltInit(m_pBlitter, NULL, false, false, &render_spu.GlobalShaders, render_spu.blitterDispatch);
1120	if (RT_SUCCESS(rc))
1121	{
1122	DEBUG_MSG(("blitter created successfully for view 0x%p\n", (void*)self));
1123	}
1124	else
1125	{
1126	DEBUG_WARN(("CrBltInit failed, rc %d", rc));
1127	RTMemFree(m_pBlitter);
1128	m_pBlitter = NULL;
1129	}
1130	}
1131	else
1132	{
1133	DEBUG_WARN(("m_pBlitter allocation failed"));
1134	}
1135
1136	if (m_pBlitter)
1137	{
1138	/* Create a shared context out of the main context. Use the same pixel format. */
1139	m_pSharedGLCtx = [[NSOpenGLContext alloc] initWithFormat:[(OverlayOpenGLContext*)m_pGLCtx openGLPixelFormat] shareContext:m_pGLCtx];
1140
1141	/* Set the new context as non opaque */
1142	[m_pSharedGLCtx setValues:&opaque forParameter:NSOpenGLCPSurfaceOpacity];
1143	/* Set this view as the drawable for the new context */
1144	[m_pSharedGLCtx setView: self];
1145	m_fNeedViewportUpdate = true;
1146	}
1147	#ifdef CR_RENDER_FORCE_PRESENT_MAIN_THREAD
1148	renderspuVBoxCompositorRelease(m_pWinInfo);
1149	pCompositor = NULL;
1150	#endif
1151	}
1152	}
1153
1154	if (m_pSharedGLCtx)
1155	{
1156	if (!pCompositor)
1157	{
1158	#ifndef CR_RENDER_FORCE_PRESENT_MAIN_THREAD
1159	/* we do not want to be blocked with the GUI thread here, so only draw her eif we are really able to do that w/o bllocking */
1160	int rc = renderspuVBoxCompositorTryAcquire(m_pWinInfo, &pCompositor);
1161	if (RT_SUCCESS(rc))
1162	{
1163	Assert(pCompositor);
1164	}
1165	else if (rc == VERR_SEM_BUSY)
1166	#endif
1167	{
1168	glFlush();
1169
1170	/* issue to the gui thread */
1171	[self setNeedsDisplay:YES];
1172	}
1173	#ifndef CR_RENDER_FORCE_PRESENT_MAIN_THREAD
1174	else
1175	{
1176	/* this is somewhat we do not expect */
1177	DEBUG_MSG(("renderspuVBoxCompositorTryAcquire failed rc %d", rc));
1178	}
1179	#endif
1180	}
1181
1182	#ifdef CR_RENDER_FORCE_PRESENT_MAIN_THREAD
1183	Assert(!pCompositor);
1184	#endif
1185	if (pCompositor)
1186	{
1187	[self vboxPresent:pCompositor];
1188	renderspuVBoxCompositorRelease(m_pWinInfo);
1189	}
1190	}
1191	else
1192	{
1193	AssertRelease(!pCompositor);
1194	}
1195	[self unlockFocus];
1196	}
1197	else
1198	{
1199	[self setNeedsDisplay:YES];
1200	}
1201	}
1202
1203	- (void)vboxTryDrawUI
1204	{
1205	if ([self lockFocusIfCanDraw])
1206	{
1207	if (m_pSharedGLCtx)
1208	{
1209	#if 1
1210	/* tmp workaround to prevent potential deadlock:
1211	* crOpenGL service thread does compositor lock acquire and calls cocoa NS methods that could synchronize on the GUI thread
1212	* while here we do a reverse order: acquire compositor lock being in gui thread.
1213	* this is why we do only try acquire and re-submit repaint event if compositor lock is busy */
1214	VBOXVR_SCR_COMPOSITOR *pCompositor = NULL;
1215	int rc = renderspuVBoxCompositorTryAcquire(m_pWinInfo, &pCompositor);
1216	if (RT_SUCCESS(rc))
1217	{
1218	Assert(pCompositor);
1219	[self vboxPresent:pCompositor];
1220	renderspuVBoxCompositorRelease(m_pWinInfo);
1221	}
1222	else if (rc == VERR_SEM_BUSY)
1223	{
1224	/* re-issue to the gui thread */
1225	# ifdef DEBUG_misha
1226	DEBUG_WARN(("renderspuVBoxCompositorTryAcquire busy\n"));
1227	# endif
1228	[NSTimer scheduledTimerWithTimeInterval:0.1 target:self selector:@selector(vboxTryDrawUI) userInfo:nil repeats:NO];
1229	}
1230	else
1231	{
1232	/* this is somewhat we do not expect */
1233	DEBUG_WARN(("renderspuVBoxCompositorTryAcquire failed rc %d", rc));
1234	}
1235	#else
1236	VBOXVR_SCR_COMPOSITOR *pCompositor = renderspuVBoxCompositorAcquire(m_pWinInfo);
1237	if (pCompositor)
1238	{
1239	[self vboxPresent:pCompositor];
1240	renderspuVBoxCompositorRelease(m_pWinInfo);
1241	}
1242	#endif
1243	}
1244	[self unlockFocus];
1245	}
1246	else
1247	{
1248	[self setNeedsDisplay:YES];
1249	}
1250	}
1251
1252	- (void)swapFBO
1253	{
1254	[m_pGLCtx flushBuffer];
1255	}
1256
1257	- (void)vboxPresent:(PVBOXVR_SCR_COMPOSITOR)pCompositor
1258	{
1259	VBOX_CR_RENDER_CTX_INFO CtxInfo;
1260
1261	DEBUG_MSG(("OVIW(%p): renderFBOToView\n", (void*)self));
1262
1263	Assert(pCompositor);
1264
1265	#if 0 //def DEBUG
1266	{
1267	NSOpenGLContext *pTstOldCtx = [NSOpenGLContext currentContext];
1268	NSView *pTstOldView = (pTstOldCtx ? [pTstOldCtx view] : nil);
1269	Assert(pTstOldCtx == m_pGLCtx);
1270	Assert(pTstOldView == self);
1271	}
1272	#endif
1273
1274	vboxCtxEnter(m_pSharedGLCtx, &CtxInfo);
1275
1276	[self vboxPresentCS:pCompositor];
1277
1278	vboxCtxLeave(&CtxInfo);
1279	}
1280
1281	- (void)vboxPresentCS:(PVBOXVR_SCR_COMPOSITOR)pCompositor
1282	{
1283	{
1284	if ([m_pSharedGLCtx view] != self)
1285	{
1286	DEBUG_MSG(("OVIW(%p): not current view of shared ctx! Switching ...\n", (void*)self));
1287	[m_pSharedGLCtx setView: self];
1288	m_fNeedViewportUpdate = true;
1289	}
1290
1291	if (m_fNeedViewportUpdate)
1292	{
1293	[self updateViewportCS];
1294	m_fNeedViewportUpdate = false;
1295	}
1296
1297	/* Render FBO content to the dock tile when necessary. */
1298	[self vboxPresentToDockTileCS:pCompositor];
1299	/* change to #if 0 to see thumbnail image */
1300	#if 1
1301	[self vboxPresentToViewCS:pCompositor];
1302	#else
1303	glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
1304	[m_pSharedGLCtx flushBuffer];
1305	#endif
1306
1307	}
1308	}
1309
1310	DECLINLINE(void) vboxNSRectToRect(const NSRect pR, RTRECT pRect)
1311	{
1312	pRect->xLeft = (int)pR->origin.x;
1313	pRect->yTop = (int)pR->origin.y;
1314	pRect->xRight = (int)(pR->origin.x + pR->size.width);
1315	pRect->yBottom = (int)(pR->origin.y + pR->size.height);
1316	}
1317
1318	DECLINLINE(void) vboxNSRectToRectUnstretched(const NSRect pR, RTRECT pRect, float xStretch, float yStretch)
1319	{
1320	pRect->xLeft = (int)(pR->origin.x / xStretch);
1321	pRect->yTop = (int)(pR->origin.y / yStretch);
1322	pRect->xRight = (int)((pR->origin.x + pR->size.width) / xStretch);
1323	pRect->yBottom = (int)((pR->origin.y + pR->size.height) / yStretch);
1324	}
1325
1326	DECLINLINE(void) vboxNSRectToRectStretched(const NSRect pR, RTRECT pRect, float xStretch, float yStretch)
1327	{
1328	pRect->xLeft = (int)(pR->origin.x * xStretch);
1329	pRect->yTop = (int)(pR->origin.y * yStretch);
1330	pRect->xRight = (int)((pR->origin.x + pR->size.width) * xStretch);
1331	pRect->yBottom = (int)((pR->origin.y + pR->size.height) * yStretch);
1332	}
1333
1334	- (void)vboxPresentToViewCS:(PVBOXVR_SCR_COMPOSITOR)pCompositor
1335	{
1336	NSRect r = [self frame];
1337	float xStretch, yStretch;
1338	DEBUG_MSG(("OVIW(%p): rF2V frame: [%i, %i, %i, %i]\n", (void*)self, (int)r.origin.x, (int)r.origin.y, (int)r.size.width, (int)r.size.height));
1339
1340	#if 1 /* Set to 0 to see the docktile instead of the real output */
1341	VBOXVR_SCR_COMPOSITOR_ITERATOR CIter;
1342	PVBOXVR_SCR_COMPOSITOR_ENTRY pEntry;
1343
1344	CrVrScrCompositorIterInit(pCompositor, &CIter);
1345
1346	glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, 0);
1347	glDrawBuffer(GL_BACK);
1348
1349	/* Clear background to transparent */
1350	glClear(GL_COLOR_BUFFER_BIT);
1351
1352	CrVrScrCompositorGetStretching(pCompositor, &xStretch, &yStretch);
1353
1354	while ((pEntry = CrVrScrCompositorIterNext(&CIter)) != NULL)
1355	{
1356	uint32_t cRegions;
1357	const RTRECT paSrcRegions, paDstRegions;
1358	int rc = CrVrScrCompositorEntryRegionsGet(pCompositor, pEntry, &cRegions, &paSrcRegions, &paDstRegions, NULL);
1359	uint32_t fFlags = CrVrScrCompositorEntryFlagsCombinedGet(pCompositor, pEntry);
1360	if (RT_SUCCESS(rc))
1361	{
1362	uint32_t i;
1363	int rc = CrBltEnter(m_pBlitter, NULL, NULL);
1364	if (RT_SUCCESS(rc))
1365	{
1366	for (i = 0; i < cRegions; ++i)
1367	{
1368	const RTRECT * pSrcRect = &paSrcRegions[i];
1369	const RTRECT * pDstRect = &paDstRegions[i];
1370	RTRECT SrcRect, DstRect, RestrictSrcRect, RestrictDstRect;
1371
1372	vboxNSRectToRect(&m_RootRect, &RestrictDstRect);
1373	VBoxRectIntersected(&RestrictDstRect, pDstRect, &DstRect);
1374
1375	if (VBoxRectIsZero(&DstRect))
1376	continue;
1377
1378	VBoxRectTranslate(&DstRect, -RestrictDstRect.xLeft, -RestrictDstRect.yTop);
1379
1380	vboxNSRectToRectUnstretched(&m_RootRect, &RestrictSrcRect, xStretch, yStretch);
1381	VBoxRectIntersected(&RestrictSrcRect, pSrcRect, &SrcRect);
1382
1383	if (VBoxRectIsZero(&SrcRect))
1384	continue;
1385
1386	pSrcRect = &SrcRect;
1387	pDstRect = &DstRect;
1388
1389	CrBltBlitTexMural(m_pBlitter, true, &pEntry->Tex, pSrcRect, pDstRect, 1, fFlags \| CRBLT_F_NOALPHA);
1390	}
1391	CrBltLeave(m_pBlitter);
1392	}
1393	else
1394	{
1395	DEBUG_WARN(("CrBltEnter failed rc %d", rc));
1396	}
1397	}
1398	else
1399	{
1400	Assert(0);
1401	DEBUG_MSG_1(("BlitStretched: CrVrScrCompositorEntryRegionsGet failed rc %d\n", rc));
1402	}
1403	}
1404	#endif
1405	/*
1406	glFinish();
1407	*/
1408	glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
1409	[m_pSharedGLCtx flushBuffer];
1410	}
1411
1412	- (void)presentComposition:(PVBOXVR_SCR_COMPOSITOR_ENTRY)pChangedEntry
1413	{
1414	[self vboxTryDraw];
1415	}
1416
1417	- (void)vboxBlitterSyncWindow
1418	{
1419	CR_BLITTER_WINDOW WinInfo;
1420	NSRect r;
1421
1422	if (!m_pBlitter)
1423	return;
1424
1425	memset(&WinInfo, 0, sizeof (WinInfo));
1426
1427	r = [self frame];
1428	WinInfo.width = r.size.width;
1429	WinInfo.height = r.size.height;
1430
1431	Assert(WinInfo.width = m_RootRect.size.width);
1432	Assert(WinInfo.height = m_RootRect.size.height);
1433
1434	/CrBltMuralSetCurrent(m_pBlitter, NULL);/
1435
1436	CrBltMuralSetCurrent(m_pBlitter, &WinInfo);
1437	CrBltCheckUpdateViewport(m_pBlitter);
1438	}
1439
1440	#ifdef VBOX_WITH_CRDUMPER_THUMBNAIL
1441	static int g_cVBoxTgaCtr = 0;
1442	#endif
1443	- (void)vboxPresentToDockTileCS:(PVBOXVR_SCR_COMPOSITOR)pCompositor
1444	{
1445	NSRect r = [self frame];
1446	NSRect rr = NSZeroRect;
1447	GLint i = 0;
1448	NSDockTile *pDT = nil;
1449	float xStretch, yStretch;
1450
1451	if ([m_DockTileView thumbBitmap] != nil)
1452	{
1453	/* Only update after at least 200 ms, cause glReadPixels is
1454	* heavy performance wise. */
1455	uint64_t uiNewTime = RTTimeMilliTS();
1456	VBOXVR_SCR_COMPOSITOR_ITERATOR CIter;
1457	PVBOXVR_SCR_COMPOSITOR_ENTRY pEntry;
1458
1459	if (uiNewTime - m_uiDockUpdateTime > 200)
1460	{
1461	m_uiDockUpdateTime = uiNewTime;
1462	#if 0
1463	/* todo: check this for optimization */
1464	glBindTexture(GL_TEXTURE_RECTANGLE_ARB, myTextureName);
1465	glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_STORAGE_HINT_APPLE,
1466	GL_STORAGE_SHARED_APPLE);
1467	glPixelStorei(GL_UNPACK_CLIENT_STORAGE_APPLE, GL_TRUE);
1468	glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA,
1469	sizex, sizey, 0, GL_BGRA,
1470	GL_UNSIGNED_INT_8_8_8_8_REV, myImagePtr);
1471	glCopyTexSubImage2D(GL_TEXTURE_RECTANGLE_ARB,
1472	0, 0, 0, 0, 0, image_width, image_height);
1473	glFlush();
1474	/* Do other work processing here, using a double or triple buffer */
1475	glGetTexImage(GL_TEXTURE_RECTANGLE_ARB, 0, GL_BGRA,
1476	GL_UNSIGNED_INT_8_8_8_8_REV, pixels);
1477	#endif
1478	glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, 0);
1479	glDrawBuffer(GL_BACK);
1480
1481	/* Clear background to transparent */
1482	glClear(GL_COLOR_BUFFER_BIT);
1483
1484	rr = [m_DockTileView frame];
1485
1486	CrVrScrCompositorGetStretching(pCompositor, &xStretch, &yStretch);
1487
1488	CrVrScrCompositorIterInit(pCompositor, &CIter);
1489	while ((pEntry = CrVrScrCompositorIterNext(&CIter)) != NULL)
1490	{
1491	uint32_t cRegions;
1492	const RTRECT paSrcRegions, paDstRegions;
1493	int rc = CrVrScrCompositorEntryRegionsGet(pCompositor, pEntry, &cRegions, &paSrcRegions, &paDstRegions, NULL);
1494	uint32_t fFlags = CrVrScrCompositorEntryFlagsCombinedGet(pCompositor, pEntry);
1495	if (RT_SUCCESS(rc))
1496	{
1497	uint32_t i;
1498	int rc = CrBltEnter(m_pBlitter, NULL, NULL);
1499	if (RT_SUCCESS(rc))
1500	{
1501	for (i = 0; i < cRegions; ++i)
1502	{
1503	const RTRECT * pSrcRect = &paSrcRegions[i];
1504	const RTRECT * pDstRect = &paDstRegions[i];
1505	RTRECT SrcRect, DstRect, RestrictSrcRect, RestrictDstRect;
1506
1507	vboxNSRectToRect(&m_RootRect, &RestrictDstRect);
1508	VBoxRectIntersected(&RestrictDstRect, pDstRect, &DstRect);
1509
1510	VBoxRectTranslate(&DstRect, -RestrictDstRect.xLeft, -RestrictDstRect.yTop);
1511
1512	VBoxRectStretch(&DstRect, m_FBOThumbScaleX, m_FBOThumbScaleY);
1513
1514	if (VBoxRectIsZero(&DstRect))
1515	continue;
1516
1517	vboxNSRectToRectUnstretched(&m_RootRect, &RestrictSrcRect, xStretch, yStretch);
1518	VBoxRectIntersected(&RestrictSrcRect, pSrcRect, &SrcRect);
1519
1520	if (VBoxRectIsZero(&SrcRect))
1521	continue;
1522
1523	pSrcRect = &SrcRect;
1524	pDstRect = &DstRect;
1525
1526	CrBltBlitTexMural(m_pBlitter, true, &pEntry->Tex, pSrcRect, pDstRect, 1, fFlags);
1527	}
1528	CrBltLeave(m_pBlitter);
1529	}
1530	else
1531	{
1532	DEBUG_WARN(("CrBltEnter failed rc %d", rc));
1533	}
1534	}
1535	else
1536	{
1537	Assert(0);
1538	DEBUG_MSG_1(("BlitStretched: CrVrScrCompositorEntryRegionsGet failed rc %d\n", rc));
1539	}
1540	}
1541
1542	glFinish();
1543
1544	glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, 0);
1545	glReadBuffer(GL_BACK);
1546	/* Here the magic of reading the FBO content in our own buffer
1547	* happens. We have to lock this access, in the case the dock
1548	* is updated currently. */
1549	[m_DockTileView lock];
1550	glReadPixels(0, m_RootRect.size.height - rr.size.height, rr.size.width, rr.size.height,
1551	GL_BGRA,
1552	GL_UNSIGNED_INT_8_8_8_8,
1553	[[m_DockTileView thumbBitmap] bitmapData]);
1554	[m_DockTileView unlock];
1555
1556	#ifdef VBOX_WITH_CRDUMPER_THUMBNAIL
1557	++g_cVBoxTgaCtr;
1558	crDumpNamedTGAF((GLint)rr.size.width, (GLint)rr.size.height,
1559	[[m_DockTileView thumbBitmap] bitmapData], "/Users/leo/vboxdumps/dump%d.tga", g_cVBoxTgaCtr);
1560	#endif
1561
1562	pDT = [[NSApplication sharedApplication] dockTile];
1563
1564	/* Send a display message to the dock tile in the main thread */
1565	[[[NSApplication sharedApplication] dockTile] performSelectorOnMainThread:@selector(display) withObject:nil waitUntilDone:NO];
1566	}
1567	}
1568	}
1569
1570	- (void)clearVisibleRegions
1571	{
1572	if(m_paClipRects)
1573	{
1574	RTMemFree(m_paClipRects);
1575	m_paClipRects = NULL;
1576	}
1577	m_cClipRects = 0;
1578	}
1579
1580	- (void)setVisibleRegions:(GLint)cRects paRects:(const GLint*)paRects
1581	{
1582	GLint cOldRects = m_cClipRects;
1583
1584	DEBUG_MSG_1(("OVIW(%p): setVisibleRegions: cRects=%d\n", (void*)self, cRects));
1585
1586	[self clearVisibleRegions];
1587
1588	if (cRects > 0)
1589	{
1590	#ifdef DEBUG_poetzsch
1591	int i =0;
1592	for (i = 0; i < cRects; ++i)
1593	DEBUG_MSG_1(("OVIW(%p): setVisibleRegions: %d - %d %d %d %d\n", (void)self, i, paRects[i 4], paRects[i * 4 + 1], paRects[i * 4 + 2], paRects[i * 4 + 3]));
1594	#endif
1595
1596	m_paClipRects = (GLint)RTMemAlloc(sizeof(GLint) 4 * cRects);
1597	m_cClipRects = cRects;
1598	memcpy(m_paClipRects, paRects, sizeof(GLint) * 4 * cRects);
1599	}
1600
1601	/* we need to redwar on regions change, however the compositor now is cleared
1602	* because all compositor&window data-related modifications are performed with compositor cleared
1603	* the renderspu client will re-set the compositor after modifications are complete
1604	* this way we indicate renderspu generic code not to ignore the empty compositor */
1605	m_pWinInfo->fCompositorPresentEmpty = GL_TRUE;
1606	}
1607
1608	- (NSView*)dockTileScreen
1609	{
1610	NSView *contentView = [[[NSApplication sharedApplication] dockTile] contentView];
1611	NSView *screenContent = nil;
1612	/* First try the new variant which checks if this window is within the
1613	screen which is previewed in the dock. */
1614	if ([contentView respondsToSelector:@selector(screenContentWithParentView:)])
1615	screenContent = [contentView performSelector:@selector(screenContentWithParentView:) withObject:(id)m_pParentView];
1616	/* If it fails, fall back to the old variant (VBox...) */
1617	else if ([contentView respondsToSelector:@selector(screenContent)])
1618	screenContent = [contentView performSelector:@selector(screenContent)];
1619	return screenContent;
1620	}
1621
1622	- (void)reshapeDockTile
1623	{
1624	NSRect newFrame = NSZeroRect;
1625
1626	NSView *pView = [self dockTileScreen];
1627	if (pView != nil)
1628	{
1629	NSRect dockFrame = [pView frame];
1630	/* todo: this is not correct, we should use framebuffer size here, while parent view frame size may differ in case of scrolling */
1631	NSRect parentFrame = [m_pParentView frame];
1632
1633	m_FBOThumbScaleX = (float)dockFrame.size.width / parentFrame.size.width;
1634	m_FBOThumbScaleY = (float)dockFrame.size.height / parentFrame.size.height;
1635	newFrame = NSMakeRect((int)(m_Pos.x * m_FBOThumbScaleX), (int)(dockFrame.size.height - (m_Pos.y + m_Size.height - m_yInvRootOffset) * m_FBOThumbScaleY), (int)(m_Size.width * m_FBOThumbScaleX), (int)(m_Size.height * m_FBOThumbScaleY));
1636	/*
1637	NSRect newFrame = NSMakeRect ((int)roundf(m_Pos.x * m_FBOThumbScaleX), (int)roundf(dockFrame.size.height - (m_Pos.y + m_Size.height) * m_FBOThumbScaleY), (int)roundf(m_Size.width * m_FBOThumbScaleX), (int)roundf(m_Size.height * m_FBOThumbScaleY));
1638	NSRect newFrame = NSMakeRect ((m_Pos.x * m_FBOThumbScaleX), (dockFrame.size.height - (m_Pos.y + m_Size.height) * m_FBOThumbScaleY), (m_Size.width * m_FBOThumbScaleX), (m_Size.height * m_FBOThumbScaleY));
1639	printf ("%f %f %f %f - %f %f\n", newFrame.origin.x, newFrame.origin.y, newFrame.size.width, newFrame.size.height, m_Size.height, m_FBOThumbScaleY);
1640	*/
1641	[m_DockTileView setFrame: newFrame];
1642	}
1643	}
1644
1645	@end
1646
1647	/********************************************************************************
1648	*
1649	* OpenGL context management
1650	*
1651	********************************************************************************/
1652	void cocoaGLCtxCreate(NativeNSOpenGLContextRef *ppCtx, GLbitfield fVisParams, NativeNSOpenGLContextRef pSharedCtx)
1653	{
1654	NSOpenGLPixelFormat *pFmt = nil;
1655
1656	NSAutoreleasePool *pPool = [[NSAutoreleasePool alloc] init];
1657
1658	NSOpenGLPixelFormatAttribute attribs[24] =
1659	{
1660	NSOpenGLPFAWindow,
1661	NSOpenGLPFAAccelerated,
1662	NSOpenGLPFAColorSize, (NSOpenGLPixelFormatAttribute)24
1663	};
1664
1665	int i = 4;
1666
1667	if (fVisParams & CR_ALPHA_BIT)
1668	{
1669	DEBUG_MSG(("CR_ALPHA_BIT requested\n"));
1670	attribs[i++] = NSOpenGLPFAAlphaSize;
1671	attribs[i++] = 8;
1672	}
1673	if (fVisParams & CR_DEPTH_BIT)
1674	{
1675	DEBUG_MSG(("CR_DEPTH_BIT requested\n"));
1676	attribs[i++] = NSOpenGLPFADepthSize;
1677	attribs[i++] = 24;
1678	}
1679	if (fVisParams & CR_STENCIL_BIT)
1680	{
1681	DEBUG_MSG(("CR_STENCIL_BIT requested\n"));
1682	attribs[i++] = NSOpenGLPFAStencilSize;
1683	attribs[i++] = 8;
1684	}
1685	if (fVisParams & CR_ACCUM_BIT)
1686	{
1687	DEBUG_MSG(("CR_ACCUM_BIT requested\n"));
1688	attribs[i++] = NSOpenGLPFAAccumSize;
1689	if (fVisParams & CR_ALPHA_BIT)
1690	attribs[i++] = 32;
1691	else
1692	attribs[i++] = 24;
1693	}
1694	if (fVisParams & CR_MULTISAMPLE_BIT)
1695	{
1696	DEBUG_MSG(("CR_MULTISAMPLE_BIT requested\n"));
1697	attribs[i++] = NSOpenGLPFASampleBuffers;
1698	attribs[i++] = 1;
1699	attribs[i++] = NSOpenGLPFASamples;
1700	attribs[i++] = 4;
1701	}
1702	if (fVisParams & CR_DOUBLE_BIT)
1703	{
1704	DEBUG_MSG(("CR_DOUBLE_BIT requested\n"));
1705	attribs[i++] = NSOpenGLPFADoubleBuffer;
1706	}
1707	if (fVisParams & CR_STEREO_BIT)
1708	{
1709	/* We don't support that.
1710	DEBUG_MSG(("CR_STEREO_BIT requested\n"));
1711	attribs[i++] = NSOpenGLPFAStereo;
1712	*/
1713	}
1714
1715	/* Mark the end */
1716	attribs[i++] = 0;
1717
1718	/* Choose a pixel format */
1719	pFmt = [[NSOpenGLPixelFormat alloc] initWithAttributes:attribs];
1720
1721	if (pFmt)
1722	{
1723	*ppCtx = [[OverlayOpenGLContext alloc] initWithFormat:pFmt shareContext:pSharedCtx];
1724
1725	/* Enable multi threaded OpenGL engine */
1726	/*
1727	CGLContextObj cglCtx = [*ppCtx CGLContextObj];
1728	CGLError err = CGLEnable(cglCtx, kCGLCEMPEngine);
1729	if (err != kCGLNoError)
1730	printf ("Couldn't enable MT OpenGL engine!\n");
1731	*/
1732
1733	DEBUG_MSG(("New context %X\n", (uint)*ppCtx));
1734	}
1735
1736	[pPool release];
1737	}
1738
1739	void cocoaGLCtxDestroy(NativeNSOpenGLContextRef pCtx)
1740	{
1741	NSAutoreleasePool *pPool = [[NSAutoreleasePool alloc] init];
1742
1743	/*
1744	[pCtx release];
1745	*/
1746
1747	[pPool release];
1748	}
1749
1750	/********************************************************************************
1751	*
1752	* View management
1753	*
1754	********************************************************************************/
1755	void cocoaViewCreate(NativeNSViewRef ppView, WindowInfo pWinInfo, NativeNSViewRef pParentView, GLbitfield fVisParams)
1756	{
1757	NSAutoreleasePool *pPool = [[NSAutoreleasePool alloc] init];
1758
1759	/* Create our worker view */
1760	OverlayView* pView = [[OverlayView alloc] initWithFrame:NSZeroRect thread:RTThreadSelf() parentView:pParentView winInfo:pWinInfo];
1761
1762	if (pView)
1763	{
1764	/* We need a real window as container for the view */
1765	[[OverlayWindow alloc] initWithParentView:pParentView overlayView:pView];
1766	/* Return the freshly created overlay view */
1767	*ppView = pView;
1768	}
1769
1770	[pPool release];
1771	}
1772
1773	void cocoaViewReparent(NativeNSViewRef pView, NativeNSViewRef pParentView)
1774	{
1775	NSAutoreleasePool *pPool = [[NSAutoreleasePool alloc] init];
1776
1777	OverlayView* pOView = (OverlayView*)pView;
1778
1779	if (pOView)
1780	{
1781	/* Make sure the window is removed from any previous parent window. */
1782	if ([[pOView overlayWin] parentWindow] != nil)
1783	{
1784	[[[pOView overlayWin] parentWindow] removeChildWindow:[pOView overlayWin]];
1785	}
1786
1787	/* Set the new parent view */
1788	[pOView setParentView: pParentView];
1789
1790	/* Add the overlay window as a child to the new parent window */
1791	if (pParentView != nil)
1792	{
1793	[[pParentView window] addChildWindow:[pOView overlayWin] ordered:NSWindowAbove];
1794	[pOView createDockTile];
1795	}
1796	}
1797
1798	[pPool release];
1799	}
1800
1801	void cocoaViewDestroy(NativeNSViewRef pView)
1802	{
1803	NSWindow *pWin = nil;
1804
1805	NSAutoreleasePool *pPool = [[NSAutoreleasePool alloc] init];
1806
1807	/* Hide the view early */
1808	[pView setHidden: YES];
1809
1810	pWin = [pView window];
1811	[[NSNotificationCenter defaultCenter] removeObserver:pWin];
1812	[pWin setContentView: nil];
1813	[[pWin parentWindow] removeChildWindow: pWin];
1814
1815	/*
1816	a = [pWin retainCount];
1817	for (; a > 1; --a)
1818	[pWin performSelector:@selector(release)]
1819	*/
1820	/* We can NOT run synchronously with the main thread since this may lead to a deadlock,
1821	caused by main thread waiting xpcom thread, xpcom thread waiting to main hgcm thread,
1822	and main hgcm thread waiting for us, this is why use waitUntilDone:NO,
1823	which should cause no harm */
1824	[pWin performSelectorOnMainThread:@selector(release) withObject:nil waitUntilDone:NO];
1825	/*
1826	[pWin release];
1827	*/
1828
1829	/* We can NOT run synchronously with the main thread since this may lead to a deadlock,
1830	caused by main thread waiting xpcom thread, xpcom thread waiting to main hgcm thread,
1831	and main hgcm thread waiting for us, this is why use waitUntilDone:NO.
1832	We need to avoid concurrency though, so we cleanup some data right away via a cleanupData call */
1833	[(OverlayView*)pView cleanupData];
1834
1835	/* There seems to be a bug in the performSelector method which is called in
1836	* parentWindowChanged above. The object is retained but not released. This
1837	* results in an unbalanced reference count, which is here manually
1838	* decremented. */
1839	/*
1840	a = [pView retainCount];
1841	for (; a > 1; --a)
1842	*/
1843	[pView performSelectorOnMainThread:@selector(release) withObject:nil waitUntilDone:NO];
1844	/*
1845	[pView release];
1846	*/
1847
1848	[pPool release];
1849	}
1850
1851	void cocoaViewShow(NativeNSViewRef pView, GLboolean fShowIt)
1852	{
1853	NSAutoreleasePool *pPool = [[NSAutoreleasePool alloc] init];
1854
1855	[pView setHidden: fShowIt==GL_TRUE?NO:YES];
1856
1857	[pPool release];
1858	}
1859
1860	void cocoaViewDisplay(NativeNSViewRef pView)
1861	{
1862	NSAutoreleasePool *pPool = [[NSAutoreleasePool alloc] init];
1863
1864	DEBUG_MSG_1(("cocoaViewDisplay %p\n", (void*)pView));
1865	[(OverlayView*)pView swapFBO];
1866
1867	[pPool release];
1868
1869	}
1870
1871	void cocoaViewSetPosition(NativeNSViewRef pView, NativeNSViewRef pParentView, int x, int y)
1872	{
1873	NSAutoreleasePool *pPool = [[NSAutoreleasePool alloc] init];
1874
1875	[(OverlayView*)pView setPos:NSMakePoint(x, y)];
1876
1877	[pPool release];
1878	}
1879
1880	void cocoaViewSetSize(NativeNSViewRef pView, int w, int h)
1881	{
1882	NSAutoreleasePool *pPool = [[NSAutoreleasePool alloc] init];
1883
1884	[(OverlayView*)pView setSize:NSMakeSize(w, h)];
1885
1886	[pPool release];
1887	}
1888
1889	void cocoaViewGetGeometry(NativeNSViewRef pView, int pX, int pY, int pW, int pH)
1890	{
1891	NSAutoreleasePool *pPool = [[NSAutoreleasePool alloc] init];
1892
1893	NSRect frame = [[pView window] frame];
1894	*pX = frame.origin.x;
1895	*pY = frame.origin.y;
1896	*pW = frame.size.width;
1897	*pH = frame.size.height;
1898
1899	[pPool release];
1900	}
1901
1902	void cocoaViewPresentComposition(NativeNSViewRef pView, struct VBOXVR_SCR_COMPOSITOR_ENTRY *pChangedEntry)
1903	{
1904	NSAutoreleasePool *pPool = [[NSAutoreleasePool alloc] init];
1905	NSOpenGLContext *pCtx;
1906
1907	/* view should not necesserily have a context set */
1908	pCtx = [(OverlayView*)pView glCtx];
1909	if (!pCtx)
1910	{
1911	ContextInfo * pCtxInfo = renderspuDefaultSharedContextAcquire();
1912	if (!pCtxInfo)
1913	{
1914	DEBUG_WARN(("renderspuDefaultSharedContextAcquire returned NULL"));
1915
1916	[pPool release];
1917	return;
1918	}
1919
1920	pCtx = pCtxInfo->context;
1921
1922	[(OverlayView*)pView setGLCtx:pCtx];
1923	}
1924
1925	[(OverlayView*)pView presentComposition:pChangedEntry];
1926
1927	[pPool release];
1928	}
1929
1930	void cocoaViewMakeCurrentContext(NativeNSViewRef pView, NativeNSOpenGLContextRef pCtx)
1931	{
1932	NSAutoreleasePool *pPool = [[NSAutoreleasePool alloc] init];
1933
1934	DEBUG_MSG(("cocoaViewMakeCurrentContext(%p, %p)\n", (void)pView, (void)pCtx));
1935
1936	if (pView)
1937	{
1938	[(OverlayView*)pView setGLCtx:pCtx];
1939	[(OverlayView*)pView makeCurrentFBO];
1940	}
1941	else
1942	{
1943	[NSOpenGLContext clearCurrentContext];
1944	}
1945
1946	[pPool release];
1947	}
1948
1949	void cocoaViewSetVisibleRegion(NativeNSViewRef pView, GLint cRects, const GLint* paRects)
1950	{
1951	NSAutoreleasePool *pPool = [[NSAutoreleasePool alloc] init];
1952
1953	[(OverlayView*)pView setVisibleRegions:cRects paRects:paRects];
1954
1955	[pPool release];
1956	}

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source: vbox/trunk/src/VBox/HostServices/SharedOpenGL/render/renderspu_cocoa_helper.m@ 49294

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