mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-24 09:10:36 +00:00
099712338f
Instead of querying the Qt include path from the dependency or from qmake, rely on the qt5qml_dep to set the include path to QtGui correctly, and look for the header inside the private includedir. Then we can use that path to include the header directly. Reported in https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/issues/780#note_548092 Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/-/merge_requests/640>
360 lines
13 KiB
C++
360 lines
13 KiB
C++
/*
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* GStreamer
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* Copyright (C) 2016 Freescale Semiconductor, Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstqtglutility.h"
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#include <QtGui/QGuiApplication>
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#if GST_GL_HAVE_WINDOW_X11 && defined (HAVE_QT_X11)
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#include <QX11Info>
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#include <gst/gl/x11/gstgldisplay_x11.h>
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#include <QtPlatformHeaders/QGLXNativeContext>
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#endif
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#if GST_GL_HAVE_PLATFORM_EGL && (defined (HAVE_QT_WAYLAND) || defined (HAVE_QT_EGLFS) || defined (HAVE_QT_ANDROID))
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#include <gst/gl/egl/gstegl.h>
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#ifdef HAVE_QT_QPA_HEADER
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#include QT_QPA_HEADER
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#endif
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#include <QtPlatformHeaders/QEGLNativeContext>
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#include <gst/gl/egl/gstgldisplay_egl.h>
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#endif
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#if GST_GL_HAVE_WINDOW_WAYLAND && defined (HAVE_QT_WAYLAND)
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#include <gst/gl/wayland/gstgldisplay_wayland.h>
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#endif
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#if GST_GL_HAVE_WINDOW_VIV_FB
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#include <gst/gl/viv-fb/gstgldisplay_viv_fb.h>
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#endif
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#if GST_GL_HAVE_WINDOW_WIN32 && GST_GL_HAVE_PLATFORM_WGL && defined (HAVE_QT_WIN32)
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#include <windows.h>
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#include <QtPlatformHeaders/QWGLNativeContext>
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#endif
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#include <gst/gl/gstglfuncs.h>
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#define GST_CAT_DEFAULT qt_gl_utils_debug
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GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
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G_LOCK_DEFINE_STATIC (display_lock);
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static GWeakRef qt_display;
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GstGLDisplay *
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gst_qt_get_gl_display ()
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{
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GstGLDisplay *display = NULL;
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QGuiApplication *app = static_cast<QGuiApplication *> (QCoreApplication::instance ());
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static volatile gsize _debug;
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g_assert (app != NULL);
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if (g_once_init_enter (&_debug)) {
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GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "qtglutility", 0,
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"Qt gl utility functions");
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g_once_init_leave (&_debug, 1);
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}
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G_LOCK (display_lock);
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/* XXX: this assumes that only one display will ever be created by Qt */
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display = static_cast<GstGLDisplay *>(g_weak_ref_get (&qt_display));
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if (display) {
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GST_INFO ("returning previously created display");
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G_UNLOCK (display_lock);
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return display;
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}
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GST_INFO ("QGuiApplication::instance()->platformName() %s", app->platformName().toUtf8().data());
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#if GST_GL_HAVE_WINDOW_X11 && defined (HAVE_QT_X11)
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if (QString::fromUtf8 ("xcb") == app->platformName())
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display = (GstGLDisplay *)
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gst_gl_display_x11_new_with_display (QX11Info::display ());
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#endif
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#if GST_GL_HAVE_WINDOW_WAYLAND && GST_GL_HAVE_PLATFORM_EGL && defined (HAVE_QT_WAYLAND)
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if (QString::fromUtf8 ("wayland") == app->platformName()
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|| QString::fromUtf8 ("wayland-egl") == app->platformName()){
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struct wl_display * wayland_display;
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QPlatformNativeInterface *native =
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QGuiApplication::platformNativeInterface();
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wayland_display = (struct wl_display *)
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native->nativeResourceForWindow("display", NULL);
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display = (GstGLDisplay *)
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gst_gl_display_wayland_new_with_display (wayland_display);
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}
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#endif
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#if GST_GL_HAVE_PLATFORM_EGL && GST_GL_HAVE_WINDOW_ANDROID
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if (QString::fromUtf8 ("android") == app->platformName()) {
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EGLDisplay egl_display = (EGLDisplay) gst_gl_display_egl_get_from_native (GST_GL_DISPLAY_TYPE_ANY, 0);
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display = (GstGLDisplay *) gst_gl_display_egl_new_with_egl_display (egl_display);
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}
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#elif GST_GL_HAVE_PLATFORM_EGL && defined (HAVE_QT_EGLFS)
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if (QString::fromUtf8("eglfs") == app->platformName()) {
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#if GST_GL_HAVE_WINDOW_VIV_FB
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/* FIXME: Could get the display directly from Qt like this
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QPlatformNativeInterface *native =
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QGuiApplication::platformNativeInterface();
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EGLDisplay egl_display = (EGLDisplay)
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native->nativeResourceForWindow("egldisplay", NULL);
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However we seem to have no way for getting the EGLNativeDisplayType, aka
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native_display, via public API. As such we have to assume that display 0
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is always used. Only way around that is parsing the index the same way as
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Qt does in QEGLDeviceIntegration::fbDeviceName(), so let's do that.
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*/
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const gchar *fb_dev;
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gint disp_idx = 0;
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fb_dev = g_getenv ("QT_QPA_EGLFS_FB");
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if (fb_dev) {
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if (sscanf (fb_dev, "/dev/fb%d", &disp_idx) != 1)
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disp_idx = 0;
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}
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display = (GstGLDisplay *) gst_gl_display_viv_fb_new (disp_idx);
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#elif defined(HAVE_QT_QPA_HEADER)
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QPlatformNativeInterface *native =
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QGuiApplication::platformNativeInterface();
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EGLDisplay egl_display = (EGLDisplay)
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native->nativeResourceForWindow("egldisplay", NULL);
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if (egl_display != EGL_NO_DISPLAY)
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display = (GstGLDisplay *) gst_gl_display_egl_new_with_egl_display (egl_display);
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#else
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EGLDisplay egl_display = (EGLDisplay) gst_gl_display_egl_get_from_native (GST_GL_DISPLAY_TYPE_ANY, 0);
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display = (GstGLDisplay *) gst_gl_display_egl_new_with_egl_display (egl_display);
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#endif
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}
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#endif
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#if GST_GL_HAVE_WINDOW_COCOA && GST_GL_HAVE_PLATFORM_CGL && defined (HAVE_QT_MAC)
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if (QString::fromUtf8 ("cocoa") == app->platformName())
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display = (GstGLDisplay *) gst_gl_display_new ();
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#endif
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#if GST_GL_HAVE_WINDOW_EAGL && GST_GL_HAVE_PLATFORM_EAGL && defined (HAVE_QT_IOS)
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if (QString::fromUtf8 ("ios") == app->platformName())
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display = gst_gl_display_new ();
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#endif
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#if GST_GL_HAVE_WINDOW_WIN32 && GST_GL_HAVE_PLATFORM_WGL && defined (HAVE_QT_WIN32)
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if (QString::fromUtf8 ("windows") == app->platformName())
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display = gst_gl_display_new ();
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#endif
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if (!display)
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display = gst_gl_display_new ();
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g_weak_ref_set (&qt_display, display);
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G_UNLOCK (display_lock);
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return display;
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}
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gboolean
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gst_qt_get_gl_wrapcontext (GstGLDisplay * display,
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GstGLContext **wrap_glcontext, GstGLContext **context)
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{
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GstGLPlatform platform = (GstGLPlatform) 0;
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GstGLAPI gl_api;
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guintptr gl_handle;
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GError *error = NULL;
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g_return_val_if_fail (display != NULL && wrap_glcontext != NULL, FALSE);
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/* see if we already have a current GL context in GStreamer for this thread */
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{
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GstGLContext *current = gst_gl_context_get_current ();
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if (current) {
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if (current->display == display) {
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*wrap_glcontext = static_cast<GstGLContext *> (gst_object_ref (current));
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return TRUE;
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}
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}
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}
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#if GST_GL_HAVE_WINDOW_X11 && defined (HAVE_QT_X11)
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if (GST_IS_GL_DISPLAY_X11 (display)) {
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#if GST_GL_HAVE_PLATFORM_GLX
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platform = GST_GL_PLATFORM_GLX;
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#elif GST_GL_HAVE_PLATFORM_EGL
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platform = GST_GL_PLATFORM_EGL;
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#endif
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}
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#endif
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#if GST_GL_HAVE_WINDOW_WAYLAND && defined (HAVE_QT_WAYLAND)
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if (GST_IS_GL_DISPLAY_WAYLAND (display)) {
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platform = GST_GL_PLATFORM_EGL;
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}
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#endif
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#if GST_GL_HAVE_PLATFORM_EGL && defined (HAVE_QT_EGLFS)
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#if GST_GL_HAVE_WINDOW_VIV_FB
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if (GST_IS_GL_DISPLAY_VIV_FB (display)) {
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#else
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if (GST_IS_GL_DISPLAY_EGL (display)) {
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#endif
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platform = GST_GL_PLATFORM_EGL;
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}
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#endif
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if (platform == 0) {
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#if GST_GL_HAVE_WINDOW_COCOA && GST_GL_HAVE_PLATFORM_CGL && defined (HAVE_QT_MAC)
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platform = GST_GL_PLATFORM_CGL;
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#elif GST_GL_HAVE_WINDOW_EAGL && GST_GL_HAVE_PLATFORM_EAGL && defined (HAVE_QT_IOS)
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platform = GST_GL_PLATFORM_EAGL;
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#elif GST_GL_HAVE_WINDOW_WIN32 && GST_GL_HAVE_PLATFORM_WGL && defined (HAVE_QT_WIN32)
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platform = GST_GL_PLATFORM_WGL;
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#elif GST_GL_HAVE_WINDOW_ANDROID && GST_GL_HAVE_PLATFORM_EGL && defined (HAVE_QT_ANDROID)
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platform = GST_GL_PLATFORM_EGL;
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#else
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GST_ERROR ("Unknown platform");
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return FALSE;
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#endif
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}
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gl_api = gst_gl_context_get_current_gl_api (platform, NULL, NULL);
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gl_handle = gst_gl_context_get_current_gl_context (platform);
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if (gl_handle)
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*wrap_glcontext =
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gst_gl_context_new_wrapped (display, gl_handle,
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platform, gl_api);
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if (!*wrap_glcontext) {
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GST_ERROR ("cannot wrap qt OpenGL context");
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return FALSE;
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}
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(void) platform;
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(void) gl_api;
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(void) gl_handle;
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gst_gl_context_activate(*wrap_glcontext, TRUE);
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if (!gst_gl_context_fill_info (*wrap_glcontext, &error)) {
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GST_ERROR ("failed to retrieve qt context info: %s", error->message);
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gst_object_unref (*wrap_glcontext);
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*wrap_glcontext = NULL;
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return FALSE;
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} else {
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gst_gl_display_filter_gl_api (display, gst_gl_context_get_gl_api (*wrap_glcontext));
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#if GST_GL_HAVE_WINDOW_WIN32 && GST_GL_HAVE_PLATFORM_WGL && defined (HAVE_QT_WIN32)
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g_return_val_if_fail (context != NULL, FALSE);
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G_STMT_START {
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GstGLWindow *window;
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HDC device;
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/* If there's no wglCreateContextAttribsARB() support, then we would fallback to
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* wglShareLists() which will fail with ERROR_BUSY (0xaa) if either of the GL
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* contexts are current in any other thread.
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*
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* The workaround here is to temporarily disable Qt's GL context while we
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* set up our own.
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*
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* Sometimes wglCreateContextAttribsARB()
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* exists, but isn't functional (some Intel drivers), so it's easiest to do this
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* unconditionally.
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*/
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*context = gst_gl_context_new (display);
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window = gst_gl_context_get_window (*context);
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device = (HDC) gst_gl_window_get_display (window);
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wglMakeCurrent (device, 0);
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gst_object_unref (window);
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if (!gst_gl_context_create (*context, *wrap_glcontext, &error)) {
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GST_ERROR ("failed to create shared GL context: %s", error->message);
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gst_object_unref (*context);
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*context = NULL;
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gst_object_unref (*wrap_glcontext);
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*wrap_glcontext = NULL;
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wglMakeCurrent (device, (HGLRC) gl_handle);
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return FALSE;
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}
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wglMakeCurrent (device, (HGLRC) gl_handle);
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} G_STMT_END;
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#endif
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gst_gl_context_activate (*wrap_glcontext, FALSE);
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}
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return TRUE;
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}
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QVariant
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qt_opengl_native_context_from_gst_gl_context (GstGLContext * context)
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{
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guintptr handle;
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GstGLPlatform platform;
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handle = gst_gl_context_get_gl_context (context);
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platform = gst_gl_context_get_gl_platform (context);
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#if GST_GL_HAVE_WINDOW_X11 && defined (HAVE_QT_X11)
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if (platform == GST_GL_PLATFORM_GLX) {
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GstGLDisplay *display = gst_gl_context_get_display (context);
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GstGLWindow *window = gst_gl_context_get_window (context);
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Display *xdisplay = (Display *) gst_gl_display_get_handle (display);
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Window win = gst_gl_window_get_window_handle (window);
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gst_object_unref (window);
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gst_object_unref (display);
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return QVariant::fromValue(QGLXNativeContext((GLXContext) handle, xdisplay, win));
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}
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#endif
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#if GST_GL_HAVE_PLATFORM_EGL && (defined (HAVE_QT_WAYLAND) || defined (HAVE_QT_EGLFS) || defined (HAVE_QT_ANDROID))
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if (platform == GST_GL_PLATFORM_EGL) {
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EGLDisplay egl_display = EGL_DEFAULT_DISPLAY;
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GstGLDisplay *display = gst_gl_context_get_display (context);
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GstGLDisplayEGL *display_egl = gst_gl_display_egl_from_gl_display (display);
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#if GST_GL_HAVE_WINDOW_WAYLAND && defined (HAVE_QT_WAYLAND)
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if (gst_gl_display_get_handle_type (display) == GST_GL_DISPLAY_TYPE_WAYLAND) {
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#if 1
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g_warning ("Qt does not support wrapping native OpenGL contexts "
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"on wayland. See https://bugreports.qt.io/browse/QTBUG-82528");
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gst_object_unref (display_egl);
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gst_object_unref (display);
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return QVariant::fromValue(nullptr);
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#else
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if (display_egl)
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egl_display = (EGLDisplay) gst_gl_display_get_handle ((GstGLDisplay *) display_egl);
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#endif
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}
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#endif
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gst_object_unref (display_egl);
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gst_object_unref (display);
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return QVariant::fromValue(QEGLNativeContext((EGLContext) handle, egl_display));
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}
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#endif
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#if GST_GL_HAVE_WINDOW_WIN32 && GST_GL_HAVE_PLATFORM_WGL && defined (HAVE_QT_WIN32)
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if (platform == GST_GL_PLATFORM_WGL) {
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GstGLWindow *window = gst_gl_context_get_window (context);
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guintptr hwnd = gst_gl_window_get_window_handle (window);
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gst_object_unref (window);
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return QVariant::fromValue(QWGLNativeContext((HGLRC) handle, (HWND) hwnd));
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}
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#endif
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{
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gchar *platform_s = gst_gl_platform_to_string (platform);
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g_warning ("Unimplemented configuration! This means either:\n"
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"1. The qmlgl plugin was built without support for your platform.\n"
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"2. The necessary code to convert from a GstGLContext to Qt's "
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"native context type for \'%s\' currently does not exist.",
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platform_s);
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g_free (platform_s);
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}
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return QVariant::fromValue(nullptr);
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}
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