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314a8c023f
The WPEThreaded view is now split in 2 classes: - WPEContextThread handles the persistent WebKit thread, where all WebKit API calls should be handled. - WPEView: is created from the WPEContextThread. It handles the WebView and maintains the public interface on which wpesrc relies. This is the facade for the WebView, basically. It takes care of dispatching API calls into the context thread. With these fixes it is now possible to create (and reuse) mutlple wpesrc elements during the application lifetime. Fixes #1372 Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1484>
150 lines
4.1 KiB
C++
150 lines
4.1 KiB
C++
/* Copyright (C) <2018> Philippe Normand <philn@igalia.com>
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* Copyright (C) <2018> Žan Doberšek <zdobersek@igalia.com>
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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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#pragma once
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#include <EGL/egl.h>
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#include <glib.h>
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#include <gst/gl/gstglfuncs.h>
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#include <wpe/fdo.h>
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#include <wpe/fdo-egl.h>
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#include <wpe/webkit.h>
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#include "gstwpesrc.h"
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typedef struct _GstGLContext GstGLContext;
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typedef struct _GstGLDisplay GstGLDisplay;
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typedef struct _GstEGLImage GstEGLImage;
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#if defined(WPE_FDO_CHECK_VERSION) && WPE_FDO_CHECK_VERSION(1, 7, 0)
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#define ENABLE_SHM_BUFFER_SUPPORT 1
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#else
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#define ENABLE_SHM_BUFFER_SUPPORT 0
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#endif
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class WPEView {
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public:
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WPEView(WebKitWebContext*, GstWpeSrc*, GstGLContext*, GstGLDisplay*, int width, int height);
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~WPEView();
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bool operator!() const { return m_isValid; }
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/* Used by wpesrc */
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void resize(int width, int height);
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void loadUri(const gchar*);
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void loadData(GBytes*);
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void setDrawBackground(gboolean);
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GstEGLImage* image();
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GstBuffer* buffer();
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void dispatchKeyboardEvent(struct wpe_input_keyboard_event&);
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void dispatchPointerEvent(struct wpe_input_pointer_event&);
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void dispatchAxisEvent(struct wpe_input_axis_event&);
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/* Used by WPEContextThread */
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bool hasUri() const { return webkit.uri; }
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void disconnectLoadFailedSignal();
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protected:
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void handleExportedImage(gpointer);
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#if ENABLE_SHM_BUFFER_SUPPORT
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void handleExportedBuffer(struct wpe_fdo_shm_exported_buffer*);
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#endif
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private:
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struct wpe_view_backend* backend() const;
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void frameComplete();
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void loadUriUnlocked(const gchar*);
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void releaseImage(gpointer);
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#if ENABLE_SHM_BUFFER_SUPPORT
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void releaseSHMBuffer(gpointer);
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static void s_releaseSHMBuffer(gpointer);
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#endif
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struct {
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GstGLContext* context;
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GstGLDisplay* display;
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} gst { nullptr, nullptr };
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static struct wpe_view_backend_exportable_fdo_egl_client s_exportableEGLClient;
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#if ENABLE_SHM_BUFFER_SUPPORT
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static struct wpe_view_backend_exportable_fdo_client s_exportableClient;
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#endif
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static void s_releaseImage(GstEGLImage*, gpointer);
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struct {
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struct wpe_view_backend_exportable_fdo* exportable;
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int width;
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int height;
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} wpe { nullptr, 0, 0 };
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struct {
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gchar* uri;
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WebKitWebView* view;
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} webkit = { nullptr, nullptr };
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bool m_isValid { false };
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// This mutex guards access to either egl or shm resources declared below,
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// depending on the runtime behavior.
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GMutex images_mutex;
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struct {
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GstEGLImage* pending;
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GstEGLImage* committed;
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} egl { nullptr, nullptr };
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struct {
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GstBuffer* pending;
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GstBuffer* committed;
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} shm { nullptr, nullptr };
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};
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class WPEContextThread {
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public:
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static WPEContextThread& singleton();
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WPEContextThread();
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~WPEContextThread();
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WPEView* createWPEView(GstWpeSrc*, GstGLContext*, GstGLDisplay*, int width, int height);
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template<typename Function>
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void dispatch(Function);
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void notifyLoadFinished();
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private:
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static gpointer s_viewThread(gpointer);
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struct {
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GMutex mutex;
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GCond cond;
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GMutex ready_mutex;
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GCond ready_cond;
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gboolean ready;
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GThread* thread { nullptr };
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} threading;
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struct {
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GMainContext* context;
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GMainLoop* loop;
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WebKitWebContext* web_context;
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} glib { nullptr, nullptr, nullptr };
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};
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