gstreamer/ext/wpe/WPEThreadedView.h
Philippe Normand 5b8935bc77 wpe: Add a source element acting as a Web Browser based on WebKit WPE
The wpe element is used to produce a video texture representing a web page
rendered off-screen by WPE. This element can be used to overlay HTML on top of
another video stream for instance.
2018-12-06 12:38:52 +00:00

94 lines
2.6 KiB
C++

/* Copyright (C) <2018> Philippe Normand <philn@igalia.com>
* Copyright (C) <2018> Žan Doberšek <zdobersek@igalia.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.
*/
#pragma once
#include <EGL/egl.h>
#include <glib.h>
#include <gst/gl/gl.h>
#include <gst/gl/gstglfuncs.h>
#include <gst/gl/egl/gsteglimage.h>
#include <gst/gl/egl/gstgldisplay_egl.h>
#include <wpe/fdo.h>
#include <wpe/fdo-egl.h>
#include <wpe/webkit.h>
#include "gstwpesrc.h"
GST_DEBUG_CATEGORY_EXTERN(wpe_src_debug);
class WPEThreadedView {
public:
WPEThreadedView();
~WPEThreadedView();
void initialize(GstWpeSrc*, GstGLContext*, GstGLDisplay*, int width, int height);
void resize(int width, int height);
void loadUri(const gchar*);
void setDrawBackground(gboolean);
GstEGLImage* image();
struct wpe_view_backend* backend() const;
private:
void frameComplete();
void releaseImage(EGLImageKHR);
void loadUriUnlocked(const gchar*);
static void s_loadEvent(WebKitWebView*, WebKitLoadEvent, gpointer);
static gpointer s_viewThread(gpointer);
struct {
GMutex mutex;
GCond cond;
GMutex ready_mutex;
GCond ready_cond;
GThread* thread { nullptr };
} threading;
struct {
GMainContext* context;
GMainLoop* loop;
} glib { nullptr, nullptr };
struct {
GstGLContext* context;
GstGLDisplay* display;
} gst { nullptr, nullptr };
static struct wpe_view_backend_exportable_fdo_egl_client s_exportableClient;
static void s_releaseImage(GstEGLImage*, gpointer);
struct {
struct wpe_view_backend_exportable_fdo* exportable;
int width;
int height;
} wpe { nullptr, 0, 0 };
struct {
gchar* uri;
WebKitWebView* view;
} webkit = { nullptr, nullptr };
struct {
GMutex mutex;
GstEGLImage* pending { nullptr };
GstEGLImage* committed { nullptr };
} images;
};