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gl/cocoa: Disable hack for NSApp iteration with a special #define

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The hack causes deadlocks and other interesting problems and it really
can only be fixed properly inside GLib. We will include a patch for
GLib in our builds for now that handles this, and hopefully at some
point GLib will also merge a proper solution.

A proper solution would first require to refactor the polling in
GMainContext to only provide a single fd, e.g. via epoll/kqueue
or a thread like the one added by our patch. Then this single
fd could be retrieved from the GMainContext and directly integrated
into a NSRunLoop.

https://bugzilla.gnome.org/show_bug.cgi?id=741450
https://bugzilla.gnome.org/show_bug.cgi?id=704374
This commit is contained in:
Sebastian Dröge 2015-01-10 15:34:57 +01:00
parent 4108069d05
commit fa5c433e7e
1 changed files with 13 additions and 0 deletions
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13
gst-libs/gst/gl/cocoa/gstglcontext_cocoa.m
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@ -40,6 +40,12 @@ static GstGLPlatform gst_gl_context_cocoa_get_gl_platform (GstGLContext * contex
G_DEFINE_TYPE (GstGLContextCocoa, gst_gl_context_cocoa, GST_GL_TYPE_CONTEXT);
/* Define this if the GLib patch from
* https://bugzilla.gnome.org/show_bug.cgi?id=741450
* is used
*/
#ifndef GSTREAMER_GLIB_COCOA_NSAPPLICATION
static GMutex nsapp_lock;
static GCond nsapp_cond;
@ -95,12 +101,15 @@ gst_gl_window_cocoa_nsapp_iteration (gpointer data)
return TRUE;
}
#endif
static void
gst_gl_context_cocoa_class_init (GstGLContextCocoaClass * klass)
{
GstGLContextClass *context_class = (GstGLContextClass *) klass;
#ifndef GSTREAMER_GLIB_COCOA_NSAPPLICATION
NSAutoreleasePool* pool = nil;
#endif
g_type_class_add_private (klass, sizeof (GstGLContextCocoaPrivate));
@ -116,6 +125,7 @@ gst_gl_context_cocoa_class_init (GstGLContextCocoaClass * klass)
context_class->get_gl_platform =
GST_DEBUG_FUNCPTR (gst_gl_context_cocoa_get_gl_platform);
#ifndef GSTREAMER_GLIB_COCOA_NSAPPLICATION
pool = [[NSAutoreleasePool alloc] init];
/* [NSApplication sharedApplication] will usually be
@ -179,6 +189,7 @@ gst_gl_context_cocoa_class_init (GstGLContextCocoaClass * klass)
}
[pool release];
#endif
}
static void
@ -206,7 +217,9 @@ gst_gl_context_cocoa_create_context (GstGLContext *context, GstGLAPI gl_api,
GstGLWindowCocoa *window_cocoa = GST_GL_WINDOW_COCOA (window);
__block NSOpenGLContext *glContext = nil;
#ifndef GSTREAMER_GLIB_COCOA_NSAPPLICATION
priv->source_id = g_timeout_add (200, gst_gl_window_cocoa_nsapp_iteration, NULL);
#endif
priv->gl_context = nil;
if (other_context)