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
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
|
/*
* GStreamer
* Copyright (C) 2016 Freescale Semiconductor, Inc. All rights reserved.
*
* 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 "gstqtglutility.h"
#include <QtGui/QGuiApplication>
#if GST_GL_HAVE_WINDOW_X11 && defined (HAVE_QT_X11)
#include <QX11Info>
#include <gst/gl/x11/gstgldisplay_x11.h>
#endif
#if GST_GL_HAVE_WINDOW_WAYLAND && GST_GL_HAVE_PLATFORM_EGL && defined (HAVE_QT_WAYLAND)
#include <qpa/qplatformnativeinterface.h>
#include <gst/gl/wayland/gstgldisplay_wayland.h>
#endif
#if GST_GL_HAVE_PLATFORM_EGL && (defined (HAVE_QT_EGLFS) || defined (HAVE_QT_ANDROID))
#if GST_GL_HAVE_WINDOW_VIV_FB
#include <qpa/qplatformnativeinterface.h>
#include <gst/gl/viv-fb/gstgldisplay_viv_fb.h>
#else
#include <gst/gl/egl/gstegl.h>
#include <gst/gl/egl/gstgldisplay_egl.h>
#ifdef HAVE_QT_QPA_HEADER
#include <qpa/qplatformnativeinterface.h>
#endif
#endif
#endif
#include <gst/gl/gstglfuncs.h>
#define GST_CAT_DEFAULT qt_gl_utils_debug
GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
GstGLDisplay *
gst_qt_get_gl_display ()
{
GstGLDisplay *display = NULL;
QGuiApplication *app = static_cast<QGuiApplication *> (QCoreApplication::instance ());
static volatile gsize _debug;
g_assert (app != NULL);
if (g_once_init_enter (&_debug)) {
GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "qtglutility", 0,
"Qt gl utility functions");
g_once_init_leave (&_debug, 1);
}
GST_INFO ("QGuiApplication::instance()->platformName() %s", app->platformName().toUtf8().data());
#if GST_GL_HAVE_WINDOW_X11 && defined (HAVE_QT_X11)
if (QString::fromUtf8 ("xcb") == app->platformName())
display = (GstGLDisplay *)
gst_gl_display_x11_new_with_display (QX11Info::display ());
#endif
#if GST_GL_HAVE_WINDOW_WAYLAND && GST_GL_HAVE_PLATFORM_EGL && defined (HAVE_QT_WAYLAND)
if (QString::fromUtf8 ("wayland") == app->platformName()
|| QString::fromUtf8 ("wayland-egl") == app->platformName()){
struct wl_display * wayland_display;
QPlatformNativeInterface *native =
QGuiApplication::platformNativeInterface();
wayland_display = (struct wl_display *)
native->nativeResourceForWindow("display", NULL);
display = (GstGLDisplay *)
gst_gl_display_wayland_new_with_display (wayland_display);
}
#endif
#if GST_GL_HAVE_PLATFORM_EGL && GST_GL_HAVE_WINDOW_ANDROID
if (QString::fromUtf8 ("android") == app->platformName()) {
EGLDisplay egl_display = (EGLDisplay) gst_gl_display_egl_get_from_native (GST_GL_DISPLAY_TYPE_ANY, 0);
display = (GstGLDisplay *) gst_gl_display_egl_new_with_egl_display (egl_display);
}
#elif GST_GL_HAVE_PLATFORM_EGL && defined (HAVE_QT_EGLFS)
if (QString::fromUtf8("eglfs") == app->platformName()) {
#if GST_GL_HAVE_WINDOW_VIV_FB
/* FIXME: Could get the display directly from Qt like this
QPlatformNativeInterface *native =
QGuiApplication::platformNativeInterface();
EGLDisplay egl_display = (EGLDisplay)
native->nativeResourceForWindow("egldisplay", NULL);
However we seem to have no way for getting the EGLNativeDisplayType, aka
native_display, via public API. As such we have to assume that display 0
is always used. Only way around that is parsing the index the same way as
Qt does in QEGLDeviceIntegration::fbDeviceName(), so let's do that.
*/
const gchar *fb_dev;
gint disp_idx = 0;
fb_dev = g_getenv ("QT_QPA_EGLFS_FB");
if (fb_dev) {
if (sscanf (fb_dev, "/dev/fb%d", &disp_idx) != 1)
disp_idx = 0;
}
display = (GstGLDisplay *) gst_gl_display_viv_fb_new (disp_idx);
#elif defined(HAVE_QT_QPA_HEADER)
QPlatformNativeInterface *native =
QGuiApplication::platformNativeInterface();
EGLDisplay egl_display = (EGLDisplay)
native->nativeResourceForWindow("egldisplay", NULL);
if (egl_display != EGL_NO_DISPLAY)
display = (GstGLDisplay *) gst_gl_display_egl_new_with_egl_display (egl_display);
#else
EGLDisplay egl_display = (EGLDisplay) gst_gl_display_egl_get_from_native (GST_GL_DISPLAY_TYPE_ANY, 0);
display = (GstGLDisplay *) gst_gl_display_egl_new_with_egl_display (egl_display);
#endif
}
#endif
#if GST_GL_HAVE_WINDOW_COCOA && GST_GL_HAVE_PLATFORM_CGL && defined (HAVE_QT_MAC)
if (QString::fromUtf8 ("cocoa") == app->platformName())
display = (GstGLDisplay *) gst_gl_display_new ();
#endif
#if GST_GL_HAVE_WINDOW_EAGL && GST_GL_HAVE_PLATFORM_EAGL && defined (HAVE_QT_IOS)
if (QString::fromUtf8 ("ios") == app->platformName())
display = gst_gl_display_new ();
#endif
#if GST_GL_HAVE_WINDOW_WIN32 && GST_GL_HAVE_PLATFORM_WGL && defined (HAVE_QT_WIN32)
if (QString::fromUtf8 ("windows") == app->platformName())
display = gst_gl_display_new ();
#endif
if (!display)
display = gst_gl_display_new ();
return display;
}
gboolean
gst_qt_get_gl_wrapcontext (GstGLDisplay * display,
GstGLContext **wrap_glcontext, GstGLContext **context)
{
GstGLPlatform platform = (GstGLPlatform) 0;
GstGLAPI gl_api;
guintptr gl_handle;
GError *error = NULL;
g_return_val_if_fail (display != NULL && wrap_glcontext != NULL, FALSE);
#if GST_GL_HAVE_WINDOW_X11 && defined (HAVE_QT_X11)
if (GST_IS_GL_DISPLAY_X11 (display)) {
#if GST_GL_HAVE_PLATFORM_GLX
platform = GST_GL_PLATFORM_GLX;
#elif GST_GL_HAVE_PLATFORM_EGL
platform = GST_GL_PLATFORM_EGL;
#endif
}
#endif
#if GST_GL_HAVE_WINDOW_WAYLAND && defined (HAVE_QT_WAYLAND)
if (GST_IS_GL_DISPLAY_WAYLAND (display)) {
platform = GST_GL_PLATFORM_EGL;
}
#endif
#if GST_GL_HAVE_PLATFORM_EGL && defined (HAVE_QT_EGLFS)
#if GST_GL_HAVE_WINDOW_VIV_FB
if (GST_IS_GL_DISPLAY_VIV_FB (display)) {
#else
if (GST_IS_GL_DISPLAY_EGL (display)) {
#endif
platform = GST_GL_PLATFORM_EGL;
}
#endif
if (platform == 0) {
#if GST_GL_HAVE_WINDOW_COCOA && GST_GL_HAVE_PLATFORM_CGL && defined (HAVE_QT_MAC)
platform = GST_GL_PLATFORM_CGL;
#elif GST_GL_HAVE_WINDOW_EAGL && GST_GL_HAVE_PLATFORM_EAGL && defined (HAVE_QT_IOS)
platform = GST_GL_PLATFORM_EAGL;
#elif GST_GL_HAVE_WINDOW_WIN32 && GST_GL_HAVE_PLATFORM_WGL && defined (HAVE_QT_WIN32)
platform = GST_GL_PLATFORM_WGL;
#elif GST_GL_HAVE_WINDOW_ANDROID && GST_GL_HAVE_PLATFORM_EGL && defined (HAVE_QT_ANDROID)
platform = GST_GL_PLATFORM_EGL;
#else
GST_ERROR ("Unknown platform");
return FALSE;
#endif
}
gl_api = gst_gl_context_get_current_gl_api (platform, NULL, NULL);
gl_handle = gst_gl_context_get_current_gl_context (platform);
if (gl_handle)
*wrap_glcontext =
gst_gl_context_new_wrapped (display, gl_handle,
platform, gl_api);
if (!*wrap_glcontext) {
GST_ERROR ("cannot wrap qt OpenGL context");
return FALSE;
}
(void) platform;
(void) gl_api;
(void) gl_handle;
gst_gl_context_activate(*wrap_glcontext, TRUE);
if (!gst_gl_context_fill_info (*wrap_glcontext, &error)) {
GST_ERROR ("failed to retrieve qt context info: %s", error->message);
g_object_unref (*wrap_glcontext);
*wrap_glcontext = NULL;
return FALSE;
} else {
gst_gl_display_filter_gl_api (display, gst_gl_context_get_gl_api (*wrap_glcontext));
#if GST_GL_HAVE_WINDOW_WIN32 && GST_GL_HAVE_PLATFORM_WGL && defined (HAVE_QT_WIN32)
g_return_val_if_fail (context != NULL, FALSE);
G_STMT_START {
GstGLWindow *window;
HDC device;
/* If there's no wglCreateContextAttribsARB() support, then we would fallback to
* wglShareLists() which will fail with ERROR_BUSY (0xaa) if either of the GL
* contexts are current in any other thread.
*
* The workaround here is to temporarily disable Qt's GL context while we
* set up our own.
*
* Sometimes wglCreateContextAttribsARB()
* exists, but isn't functional (some Intel drivers), so it's easiest to do this
* unconditionally.
*/
*context = gst_gl_context_new (display);
window = gst_gl_context_get_window (*context);
device = (HDC) gst_gl_window_get_display (window);
wglMakeCurrent (device, 0);
gst_object_unref (window);
if (!gst_gl_context_create (*context, *wrap_glcontext, &error)) {
GST_ERROR ("failed to create shared GL context: %s", error->message);
g_object_unref (*context);
*context = NULL;
g_object_unref (*wrap_glcontext);
*wrap_glcontext = NULL;
wglMakeCurrent (device, (HGLRC) gl_handle);
return FALSE;
}
wglMakeCurrent (device, (HGLRC) gl_handle);
} G_STMT_END;
#endif
gst_gl_context_activate (*wrap_glcontext, FALSE);
}
return TRUE;
}
|
