mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-24 10:41:04 +00:00
qmlglsink: add win32 support
The current state of c++ ABI's on Window's and Gst's/Qt's conflicting mingw builds means that we cannot use mingw for building the qt plugin. Instead, a qmake .pro file is provided that is expected to be used with the msvc binaries provided by Qt like so: (with the PATH environment variable containing the path to the qt biniaries and PKG_CONFIG_PATH containing the path to GStreamer modules) cd /path/to/sources/gst-plugins-bad/ext/qt qmake -tp vc Then open the resulting VS project and build the library. Then cp debug/libgstqtsink.dll /path/to/prefix/lib/gstreamer-1.0/libgstqtsink.cll https://bugzilla.gnome.org/show_bug.cgi?id=761260
This commit is contained in:
Matthew Waters
parent
c9dd45393e
commit
3be4b85a43
2 changed files with 91 additions and 41 deletions
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@ -178,6 +178,10 @@ QtGLVideoItem::QtGLVideoItem()
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if (QString::fromUtf8 ("ios") == app->platformName())
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this->priv->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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this->priv->display = gst_gl_display_new ();
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#endif
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if (!this->priv->display)
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this->priv->display = gst_gl_display_new ();
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@ -216,9 +220,9 @@ QtGLVideoItem::getDAR(gint * num, gint * den)
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}
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void
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QtGLVideoItem::setForceAspectRatio(bool far)
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QtGLVideoItem::setForceAspectRatio(bool force_aspect_ratio)
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{
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this->priv->force_aspect_ratio = far;
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this->priv->force_aspect_ratio = !!force_aspect_ratio;
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}
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bool
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@ -314,7 +318,7 @@ qt_item_set_buffer (QtGLVideoItem * widget, GstBuffer * buffer)
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void
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QtGLVideoItem::onSceneGraphInitialized ()
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{
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GstGLPlatform platform;
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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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@ -333,60 +337,37 @@ QtGLVideoItem::onSceneGraphInitialized ()
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#if GST_GL_HAVE_WINDOW_X11 && defined (HAVE_QT_X11)
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if (GST_IS_GL_DISPLAY_X11 (this->priv->display)) {
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platform = GST_GL_PLATFORM_GLX;
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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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this->priv->other_context =
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gst_gl_context_new_wrapped (this->priv->display, gl_handle,
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platform, gl_api);
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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 (this->priv->display)) {
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platform = GST_GL_PLATFORM_EGL;
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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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this->priv->other_context =
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gst_gl_context_new_wrapped (this->priv->display, gl_handle,
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platform, gl_api);
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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_IS_GL_DISPLAY_EGL (this->priv->display)) {
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platform = GST_GL_PLATFORM_EGL;
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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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this->priv->other_context =
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gst_gl_context_new_wrapped (this->priv->display, gl_handle,
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platform, gl_api);
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}
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#endif
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if (platform == 0 && this->priv->display) {
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#if GST_GL_HAVE_WINDOW_COCOA && GST_GL_HAVE_PLATFORM_COCOA && defined (HAVE_QT_MAC)
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if (this->priv->display) {
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platform = GST_GL_PLATFORM_CGL;
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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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this->priv->other_context =
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gst_gl_context_new_wrapped (this->priv->display, gl_handle,
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platform, gl_api);
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}
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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 (this->priv->display) {
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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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#else
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GST_ERROR ("Unknown platform");
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return;
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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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this->priv->other_context =
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gst_gl_context_new_wrapped (this->priv->display, gl_handle,
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platform, gl_api);
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}
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#endif
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(void) platform;
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(void) gl_api;
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@ -402,6 +383,36 @@ QtGLVideoItem::onSceneGraphInitialized ()
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this->priv->other_context = NULL;
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} else {
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gst_gl_display_filter_gl_api (this->priv->display, gst_gl_context_get_gl_api (this->priv->other_context));
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#if GST_GL_HAVE_WINDOW_WIN32 && GST_GL_HAVE_PLATFORM_WGL && defined (HAVE_QT_WIN32)
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if (!wglGetProcAddress ("wglCreateContextAttribsARB")) {
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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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this->priv->context = gst_gl_context_new (this->priv->display);
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window = gst_gl_context_get_window (this->priv->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 (this->priv->context, this->priv->other_context, &error)) {
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GST_ERROR ("%p failed to create shared GL context: %s", this, error->message);
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g_object_unref (this->priv->context);
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this->priv->context = NULL;
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g_object_unref (this->priv->other_context);
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this->priv->other_context = NULL;
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wglMakeCurrent (device, (HGLRC) gl_handle);
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return;
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}
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wglMakeCurrent (device, (HGLRC) gl_handle);
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}
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#endif
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gst_gl_context_activate (this->priv->other_context, FALSE);
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m_openGlContextInitialized = true;
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}
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39
ext/qt/qtplugin.pro
Normal file
39
ext/qt/qtplugin.pro
Normal file
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@ -0,0 +1,39 @@
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TEMPLATE = lib
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TARGET = libgstqtsink
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QT += qml quick widgets
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QT_CONFIG -= no-pkg-config
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CONFIG += link_pkgconfig debug plugin
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PKGCONFIG = \
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gstreamer-1.0 \
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gstreamer-video-1.0 \
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gstreamer-gl-1.0
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DEFINES += \
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GST_USE_UNSTABLE_API \
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HAVE_QT_WIN32 \
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'GST_PACKAGE_NAME=\"GStreamer Bad Plug-ins (qmake)\"' \
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'GST_PACKAGE_ORIGIN=\"Unknown package origin\"' \
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'GST_LICENSE=\"LGPL\"' \
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'PACKAGE=\"gst-plugins-bad (qmake)\"' \
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'PACKAGE_VERSION=\"1.9.0.1\"'
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SOURCES += \
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gstplugin.cc \
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gstqsgtexture.cc \
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gstqtsink.cc \
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qtitem.cc
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HEADERS += \
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gstqsgtexture.h \
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gstqtgl.h \
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gstqtsink.h \
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qtitem.h
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INCLUDEPATH += \
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$$(GSTREAMER_ROOT)/include \
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$$[QT_INSTALL_PREFIX]/include/QtGui/$$[QT_VERSION]/QtGui/
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