1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
|
/*
* GStreamer
* Copyright (C) 2019 Matthew Waters <matthew@centricular.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "vkdisplay_cocoa.h"
#include "vkcocoa_utils.h"
#define GST_CAT_DEFAULT gst_vulkan_display_debug
GST_DEBUG_CATEGORY_STATIC (gst_vulkan_display_debug);
G_DEFINE_TYPE (GstVulkanDisplayCocoa, gst_vulkan_display_cocoa,
GST_TYPE_VULKAN_DISPLAY);
static void gst_vulkan_display_cocoa_finalize (GObject * object);
static gpointer gst_vulkan_display_cocoa_get_handle (GstVulkanDisplay * display);
/* Define this if the GLib patch from
* https://bugzilla.gnome.org/show_bug.cgi?id=741450
* is used
*/
#ifndef GSTREAMER_GLIB_COCOA_NSAPPLICATION
static GstVulkanDisplayCocoa *singleton = NULL;
static gint nsapp_source_id = 0;
static GMutex nsapp_lock;
static GCond nsapp_cond;
static gboolean
gst_vulkan_display_cocoa_nsapp_iteration (gpointer data)
{
NSEvent *event = nil;
if (![NSThread isMainThread]) {
GST_WARNING ("NSApp iteration not running in the main thread");
return FALSE;
}
while ((event = ([NSApp nextEventMatchingMask:NSEventMaskAny
untilDate:[NSDate dateWithTimeIntervalSinceNow:0.05]
inMode:NSDefaultRunLoopMode dequeue:YES])) != nil) {
[NSApp sendEvent:event];
}
return TRUE;
}
static void
gst_vulkan_display_cocoa_open_and_attach_source (gpointer data)
{
if ([NSThread isMainThread]) {
/* The sharedApplication class method initializes
* the display environment and connects your program
* to the window server and the display server.
* It has to be done in the main thread.
*/
[NSApplication sharedApplication];
GST_DEBUG ("Custom NSApp initialization done");
nsapp_source_id = g_timeout_add (60, gst_vulkan_display_cocoa_nsapp_iteration,
NULL);
GST_DEBUG ("NSApp iteration loop attached, id %d", nsapp_source_id);
}
}
static gboolean
gst_vulkan_display_cocoa_init_nsapp (gpointer data)
{
g_mutex_lock (&nsapp_lock);
gst_vulkan_display_cocoa_open_and_attach_source (data);
g_cond_signal (&nsapp_cond);
g_mutex_unlock (&nsapp_lock);
return FALSE;
}
static GstVulkanDisplayCocoa *
gst_vulkan_display_cocoa_setup_nsapp (gpointer data)
{
GMainContext *context = g_main_context_default ();
gint delta_ms = 0;
g_mutex_lock (&nsapp_lock);
if (singleton) {
GST_DEBUG ("Get existing display");
singleton = gst_object_ref (singleton);
g_mutex_unlock (&nsapp_lock);
return singleton;
}
if (NSApp != nil && !singleton) {
GstVulkanDisplayCocoa *ret = g_object_new (GST_TYPE_VULKAN_DISPLAY_COCOA, NULL);
gst_object_ref_sink (ret);
g_mutex_unlock (&nsapp_lock);
return ret;
}
/* All application have to start with [NSApplication sharedApplication]
* so if NSApp is nil here let's assume this is a debugging application
* that runs a glib main loop. */
g_assert (NSApp == nil);
GST_DEBUG ("The application has not initialized NSApp");
if ([NSThread isMainThread]) {
GST_DEBUG ("Setting up NSApp from the main thread");
if (g_main_context_is_owner (context)) {
GST_DEBUG ("The main thread own the context");
gst_vulkan_display_cocoa_open_and_attach_source (data);
} else if (g_main_context_acquire (context)) {
GST_DEBUG ("The main loop should be shortly running in the main thread");
gst_vulkan_display_cocoa_open_and_attach_source (data);
g_main_context_release (context);
} else {
GST_WARNING ("Main loop running in another thread");
}
} else {
GST_DEBUG ("Setting up NSApp not from the main thread");
if (g_main_context_is_owner (context)) {
GST_WARNING ("Default context not own by the main thread");
delta_ms = -1;
} else if (g_main_context_acquire (context)) {
GST_DEBUG ("The main loop should be shortly running in the main thread");
delta_ms = 1000;
g_main_context_release (context);
} else {
GST_DEBUG ("Main loop running in main thread");
delta_ms = 500;
}
if (delta_ms > 0) {
gint64 end_time = g_get_monotonic_time () + delta_ms * 1000;;
g_idle_add_full (G_PRIORITY_HIGH, gst_vulkan_display_cocoa_init_nsapp, data, NULL);
g_cond_wait_until (&nsapp_cond, &nsapp_lock, end_time);
}
}
if (NSApp == nil) {
GST_ERROR ("Custom NSApp initialization failed");
} else {
GST_DEBUG ("Create display");
singleton = g_object_new (GST_TYPE_VULKAN_DISPLAY_COCOA, NULL);
gst_object_ref_sink (singleton);
}
g_mutex_unlock (&nsapp_lock);
return singleton;
}
#endif
static void
gst_vulkan_display_cocoa_class_init (GstVulkanDisplayCocoaClass * klass)
{
GST_VULKAN_DISPLAY_CLASS (klass)->get_handle =
GST_DEBUG_FUNCPTR (gst_vulkan_display_cocoa_get_handle);
G_OBJECT_CLASS (klass)->finalize = gst_vulkan_display_cocoa_finalize;
}
static void
gst_vulkan_display_cocoa_init (GstVulkanDisplayCocoa * display_cocoa)
{
GstVulkanDisplay *display = (GstVulkanDisplay *) display_cocoa;
display->type = GST_VULKAN_DISPLAY_TYPE_COCOA;
}
static void
gst_vulkan_display_cocoa_finalize (GObject * object)
{
#ifndef GSTREAMER_GLIB_COCOA_NSAPPLICATION
g_mutex_lock (&nsapp_lock);
if (singleton) {
GST_DEBUG ("Destroy display");
singleton = NULL;
if (nsapp_source_id) {
GST_DEBUG ("Remove NSApp loop iteration, id %d", nsapp_source_id);
g_source_remove (nsapp_source_id);
}
nsapp_source_id = 0;
g_mutex_unlock (&nsapp_lock);
}
g_mutex_unlock (&nsapp_lock);
#endif
G_OBJECT_CLASS (gst_vulkan_display_cocoa_parent_class)->finalize (object);
}
/**
* gst_vulkan_display_cocoa_new:
*
* Create a new #GstVulkanDisplayCocoa.
*
* Returns: (transfer full): a new #GstVulkanDisplayCocoa or %NULL
*/
GstVulkanDisplayCocoa *
gst_vulkan_display_cocoa_new (void)
{
GstVulkanDisplayCocoa *ret;
GST_DEBUG_CATEGORY_GET (gst_vulkan_display_debug, "vulkandisplay");
#ifndef GSTREAMER_GLIB_COCOA_NSAPPLICATION
ret = gst_vulkan_display_cocoa_setup_nsapp (NULL);
#else
ret = g_object_new (GST_TYPE_VULKAN_DISPLAY_COCOA, NULL);
gst_object_ref_sink (ret);
#endif
return ret;
}
static gpointer
gst_vulkan_display_cocoa_get_handle (GstVulkanDisplay * display)
{
return (gpointer) (__bridge gpointer) NSApp;
}
|
