| /* |
| * Copyright 2012 The WebRTC Project Authors. All rights reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #include "webrtc/examples/peerconnection/client/linux/main_wnd.h" |
| |
| #include <gdk/gdkkeysyms.h> |
| #include <gtk/gtk.h> |
| #include <stddef.h> |
| |
| #include "webrtc/examples/peerconnection/client/defaults.h" |
| #include "webrtc/base/common.h" |
| #include "webrtc/base/logging.h" |
| #include "webrtc/base/stringutils.h" |
| |
| using rtc::sprintfn; |
| |
| namespace { |
| |
| // |
| // Simple static functions that simply forward the callback to the |
| // GtkMainWnd instance. |
| // |
| |
| gboolean OnDestroyedCallback(GtkWidget* widget, GdkEvent* event, |
| gpointer data) { |
| reinterpret_cast<GtkMainWnd*>(data)->OnDestroyed(widget, event); |
| return FALSE; |
| } |
| |
| void OnClickedCallback(GtkWidget* widget, gpointer data) { |
| reinterpret_cast<GtkMainWnd*>(data)->OnClicked(widget); |
| } |
| |
| gboolean SimulateButtonClick(gpointer button) { |
| g_signal_emit_by_name(button, "clicked"); |
| return false; |
| } |
| |
| gboolean OnKeyPressCallback(GtkWidget* widget, GdkEventKey* key, |
| gpointer data) { |
| reinterpret_cast<GtkMainWnd*>(data)->OnKeyPress(widget, key); |
| return false; |
| } |
| |
| void OnRowActivatedCallback(GtkTreeView* tree_view, GtkTreePath* path, |
| GtkTreeViewColumn* column, gpointer data) { |
| reinterpret_cast<GtkMainWnd*>(data)->OnRowActivated(tree_view, path, column); |
| } |
| |
| gboolean SimulateLastRowActivated(gpointer data) { |
| GtkTreeView* tree_view = reinterpret_cast<GtkTreeView*>(data); |
| GtkTreeModel* model = gtk_tree_view_get_model(tree_view); |
| |
| // "if iter is NULL, then the number of toplevel nodes is returned." |
| int rows = gtk_tree_model_iter_n_children(model, NULL); |
| GtkTreePath* lastpath = gtk_tree_path_new_from_indices(rows - 1, -1); |
| |
| // Select the last item in the list |
| GtkTreeSelection* selection = gtk_tree_view_get_selection(tree_view); |
| gtk_tree_selection_select_path(selection, lastpath); |
| |
| // Our TreeView only has one column, so it is column 0. |
| GtkTreeViewColumn* column = gtk_tree_view_get_column(tree_view, 0); |
| |
| gtk_tree_view_row_activated(tree_view, lastpath, column); |
| |
| gtk_tree_path_free(lastpath); |
| return false; |
| } |
| |
| // Creates a tree view, that we use to display the list of peers. |
| void InitializeList(GtkWidget* list) { |
| GtkCellRenderer* renderer = gtk_cell_renderer_text_new(); |
| GtkTreeViewColumn* column = gtk_tree_view_column_new_with_attributes( |
| "List Items", renderer, "text", 0, NULL); |
| gtk_tree_view_append_column(GTK_TREE_VIEW(list), column); |
| GtkListStore* store = gtk_list_store_new(2, G_TYPE_STRING, G_TYPE_INT); |
| gtk_tree_view_set_model(GTK_TREE_VIEW(list), GTK_TREE_MODEL(store)); |
| g_object_unref(store); |
| } |
| |
| // Adds an entry to a tree view. |
| void AddToList(GtkWidget* list, const gchar* str, int value) { |
| GtkListStore* store = GTK_LIST_STORE( |
| gtk_tree_view_get_model(GTK_TREE_VIEW(list))); |
| |
| GtkTreeIter iter; |
| gtk_list_store_append(store, &iter); |
| gtk_list_store_set(store, &iter, 0, str, 1, value, -1); |
| } |
| |
| struct UIThreadCallbackData { |
| explicit UIThreadCallbackData(MainWndCallback* cb, int id, void* d) |
| : callback(cb), msg_id(id), data(d) {} |
| MainWndCallback* callback; |
| int msg_id; |
| void* data; |
| }; |
| |
| gboolean HandleUIThreadCallback(gpointer data) { |
| UIThreadCallbackData* cb_data = reinterpret_cast<UIThreadCallbackData*>(data); |
| cb_data->callback->UIThreadCallback(cb_data->msg_id, cb_data->data); |
| delete cb_data; |
| return false; |
| } |
| |
| gboolean Redraw(gpointer data) { |
| GtkMainWnd* wnd = reinterpret_cast<GtkMainWnd*>(data); |
| wnd->OnRedraw(); |
| return false; |
| } |
| |
| } // namespace |
| |
| // |
| // GtkMainWnd implementation. |
| // |
| |
| GtkMainWnd::GtkMainWnd(const char* server, int port, bool autoconnect, |
| bool autocall) |
| : window_(NULL), draw_area_(NULL), vbox_(NULL), server_edit_(NULL), |
| port_edit_(NULL), peer_list_(NULL), callback_(NULL), |
| server_(server), autoconnect_(autoconnect), autocall_(autocall) { |
| char buffer[10]; |
| sprintfn(buffer, sizeof(buffer), "%i", port); |
| port_ = buffer; |
| } |
| |
| GtkMainWnd::~GtkMainWnd() { |
| ASSERT(!IsWindow()); |
| } |
| |
| void GtkMainWnd::RegisterObserver(MainWndCallback* callback) { |
| callback_ = callback; |
| } |
| |
| bool GtkMainWnd::IsWindow() { |
| return window_ != NULL && GTK_IS_WINDOW(window_); |
| } |
| |
| void GtkMainWnd::MessageBox(const char* caption, const char* text, |
| bool is_error) { |
| GtkWidget* dialog = gtk_message_dialog_new(GTK_WINDOW(window_), |
| GTK_DIALOG_DESTROY_WITH_PARENT, |
| is_error ? GTK_MESSAGE_ERROR : GTK_MESSAGE_INFO, |
| GTK_BUTTONS_CLOSE, "%s", text); |
| gtk_window_set_title(GTK_WINDOW(dialog), caption); |
| gtk_dialog_run(GTK_DIALOG(dialog)); |
| gtk_widget_destroy(dialog); |
| } |
| |
| MainWindow::UI GtkMainWnd::current_ui() { |
| if (vbox_) |
| return CONNECT_TO_SERVER; |
| |
| if (peer_list_) |
| return LIST_PEERS; |
| |
| return STREAMING; |
| } |
| |
| |
| void GtkMainWnd::StartLocalRenderer(webrtc::VideoTrackInterface* local_video) { |
| local_renderer_.reset(new VideoRenderer(this, local_video)); |
| } |
| |
| void GtkMainWnd::StopLocalRenderer() { |
| local_renderer_.reset(); |
| } |
| |
| void GtkMainWnd::StartRemoteRenderer( |
| webrtc::VideoTrackInterface* remote_video) { |
| remote_renderer_.reset(new VideoRenderer(this, remote_video)); |
| } |
| |
| void GtkMainWnd::StopRemoteRenderer() { |
| remote_renderer_.reset(); |
| } |
| |
| void GtkMainWnd::QueueUIThreadCallback(int msg_id, void* data) { |
| g_idle_add(HandleUIThreadCallback, |
| new UIThreadCallbackData(callback_, msg_id, data)); |
| } |
| |
| bool GtkMainWnd::Create() { |
| ASSERT(window_ == NULL); |
| |
| window_ = gtk_window_new(GTK_WINDOW_TOPLEVEL); |
| if (window_) { |
| gtk_window_set_position(GTK_WINDOW(window_), GTK_WIN_POS_CENTER); |
| gtk_window_set_default_size(GTK_WINDOW(window_), 640, 480); |
| gtk_window_set_title(GTK_WINDOW(window_), "PeerConnection client"); |
| g_signal_connect(G_OBJECT(window_), "delete-event", |
| G_CALLBACK(&OnDestroyedCallback), this); |
| g_signal_connect(window_, "key-press-event", G_CALLBACK(OnKeyPressCallback), |
| this); |
| |
| SwitchToConnectUI(); |
| } |
| |
| return window_ != NULL; |
| } |
| |
| bool GtkMainWnd::Destroy() { |
| if (!IsWindow()) |
| return false; |
| |
| gtk_widget_destroy(window_); |
| window_ = NULL; |
| |
| return true; |
| } |
| |
| void GtkMainWnd::SwitchToConnectUI() { |
| LOG(INFO) << __FUNCTION__; |
| |
| ASSERT(IsWindow()); |
| ASSERT(vbox_ == NULL); |
| |
| gtk_container_set_border_width(GTK_CONTAINER(window_), 10); |
| |
| if (peer_list_) { |
| gtk_widget_destroy(peer_list_); |
| peer_list_ = NULL; |
| } |
| |
| vbox_ = gtk_vbox_new(FALSE, 5); |
| GtkWidget* valign = gtk_alignment_new(0, 1, 0, 0); |
| gtk_container_add(GTK_CONTAINER(vbox_), valign); |
| gtk_container_add(GTK_CONTAINER(window_), vbox_); |
| |
| GtkWidget* hbox = gtk_hbox_new(FALSE, 5); |
| |
| GtkWidget* label = gtk_label_new("Server"); |
| gtk_container_add(GTK_CONTAINER(hbox), label); |
| |
| server_edit_ = gtk_entry_new(); |
| gtk_entry_set_text(GTK_ENTRY(server_edit_), server_.c_str()); |
| gtk_widget_set_size_request(server_edit_, 400, 30); |
| gtk_container_add(GTK_CONTAINER(hbox), server_edit_); |
| |
| port_edit_ = gtk_entry_new(); |
| gtk_entry_set_text(GTK_ENTRY(port_edit_), port_.c_str()); |
| gtk_widget_set_size_request(port_edit_, 70, 30); |
| gtk_container_add(GTK_CONTAINER(hbox), port_edit_); |
| |
| GtkWidget* button = gtk_button_new_with_label("Connect"); |
| gtk_widget_set_size_request(button, 70, 30); |
| g_signal_connect(button, "clicked", G_CALLBACK(OnClickedCallback), this); |
| gtk_container_add(GTK_CONTAINER(hbox), button); |
| |
| GtkWidget* halign = gtk_alignment_new(1, 0, 0, 0); |
| gtk_container_add(GTK_CONTAINER(halign), hbox); |
| gtk_box_pack_start(GTK_BOX(vbox_), halign, FALSE, FALSE, 0); |
| |
| gtk_widget_show_all(window_); |
| |
| if (autoconnect_) |
| g_idle_add(SimulateButtonClick, button); |
| } |
| |
| void GtkMainWnd::SwitchToPeerList(const Peers& peers) { |
| LOG(INFO) << __FUNCTION__; |
| |
| if (!peer_list_) { |
| gtk_container_set_border_width(GTK_CONTAINER(window_), 0); |
| if (vbox_) { |
| gtk_widget_destroy(vbox_); |
| vbox_ = NULL; |
| server_edit_ = NULL; |
| port_edit_ = NULL; |
| } else if (draw_area_) { |
| gtk_widget_destroy(draw_area_); |
| draw_area_ = NULL; |
| draw_buffer_.reset(); |
| } |
| |
| peer_list_ = gtk_tree_view_new(); |
| g_signal_connect(peer_list_, "row-activated", |
| G_CALLBACK(OnRowActivatedCallback), this); |
| gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(peer_list_), FALSE); |
| InitializeList(peer_list_); |
| gtk_container_add(GTK_CONTAINER(window_), peer_list_); |
| gtk_widget_show_all(window_); |
| } else { |
| GtkListStore* store = |
| GTK_LIST_STORE(gtk_tree_view_get_model(GTK_TREE_VIEW(peer_list_))); |
| gtk_list_store_clear(store); |
| } |
| |
| AddToList(peer_list_, "List of currently connected peers:", -1); |
| for (Peers::const_iterator i = peers.begin(); i != peers.end(); ++i) |
| AddToList(peer_list_, i->second.c_str(), i->first); |
| |
| if (autocall_ && peers.begin() != peers.end()) |
| g_idle_add(SimulateLastRowActivated, peer_list_); |
| } |
| |
| void GtkMainWnd::SwitchToStreamingUI() { |
| LOG(INFO) << __FUNCTION__; |
| |
| ASSERT(draw_area_ == NULL); |
| |
| gtk_container_set_border_width(GTK_CONTAINER(window_), 0); |
| if (peer_list_) { |
| gtk_widget_destroy(peer_list_); |
| peer_list_ = NULL; |
| } |
| |
| draw_area_ = gtk_drawing_area_new(); |
| gtk_container_add(GTK_CONTAINER(window_), draw_area_); |
| |
| gtk_widget_show_all(window_); |
| } |
| |
| void GtkMainWnd::OnDestroyed(GtkWidget* widget, GdkEvent* event) { |
| callback_->Close(); |
| window_ = NULL; |
| draw_area_ = NULL; |
| vbox_ = NULL; |
| server_edit_ = NULL; |
| port_edit_ = NULL; |
| peer_list_ = NULL; |
| } |
| |
| void GtkMainWnd::OnClicked(GtkWidget* widget) { |
| // Make the connect button insensitive, so that it cannot be clicked more than |
| // once. Now that the connection includes auto-retry, it should not be |
| // necessary to click it more than once. |
| gtk_widget_set_sensitive(widget, false); |
| server_ = gtk_entry_get_text(GTK_ENTRY(server_edit_)); |
| port_ = gtk_entry_get_text(GTK_ENTRY(port_edit_)); |
| int port = port_.length() ? atoi(port_.c_str()) : 0; |
| callback_->StartLogin(server_, port); |
| } |
| |
| void GtkMainWnd::OnKeyPress(GtkWidget* widget, GdkEventKey* key) { |
| if (key->type == GDK_KEY_PRESS) { |
| switch (key->keyval) { |
| case GDK_Escape: |
| if (draw_area_) { |
| callback_->DisconnectFromCurrentPeer(); |
| } else if (peer_list_) { |
| callback_->DisconnectFromServer(); |
| } |
| break; |
| |
| case GDK_KP_Enter: |
| case GDK_Return: |
| if (vbox_) { |
| OnClicked(NULL); |
| } else if (peer_list_) { |
| // OnRowActivated will be called automatically when the user |
| // presses enter. |
| } |
| break; |
| |
| default: |
| break; |
| } |
| } |
| } |
| |
| void GtkMainWnd::OnRowActivated(GtkTreeView* tree_view, GtkTreePath* path, |
| GtkTreeViewColumn* column) { |
| ASSERT(peer_list_ != NULL); |
| GtkTreeIter iter; |
| GtkTreeModel* model; |
| GtkTreeSelection* selection = |
| gtk_tree_view_get_selection(GTK_TREE_VIEW(tree_view)); |
| if (gtk_tree_selection_get_selected(selection, &model, &iter)) { |
| char* text; |
| int id = -1; |
| gtk_tree_model_get(model, &iter, 0, &text, 1, &id, -1); |
| if (id != -1) |
| callback_->ConnectToPeer(id); |
| g_free(text); |
| } |
| } |
| |
| void GtkMainWnd::OnRedraw() { |
| gdk_threads_enter(); |
| |
| VideoRenderer* remote_renderer = remote_renderer_.get(); |
| if (remote_renderer && remote_renderer->image() != NULL && |
| draw_area_ != NULL) { |
| int width = remote_renderer->width(); |
| int height = remote_renderer->height(); |
| |
| if (!draw_buffer_.get()) { |
| draw_buffer_size_ = (width * height * 4) * 4; |
| draw_buffer_.reset(new uint8_t[draw_buffer_size_]); |
| gtk_widget_set_size_request(draw_area_, width * 2, height * 2); |
| } |
| |
| const uint32_t* image = |
| reinterpret_cast<const uint32_t*>(remote_renderer->image()); |
| uint32_t* scaled = reinterpret_cast<uint32_t*>(draw_buffer_.get()); |
| for (int r = 0; r < height; ++r) { |
| for (int c = 0; c < width; ++c) { |
| int x = c * 2; |
| scaled[x] = scaled[x + 1] = image[c]; |
| } |
| |
| uint32_t* prev_line = scaled; |
| scaled += width * 2; |
| memcpy(scaled, prev_line, (width * 2) * 4); |
| |
| image += width; |
| scaled += width * 2; |
| } |
| |
| VideoRenderer* local_renderer = local_renderer_.get(); |
| if (local_renderer && local_renderer->image()) { |
| image = reinterpret_cast<const uint32_t*>(local_renderer->image()); |
| scaled = reinterpret_cast<uint32_t*>(draw_buffer_.get()); |
| // Position the local preview on the right side. |
| scaled += (width * 2) - (local_renderer->width() / 2); |
| // right margin... |
| scaled -= 10; |
| // ... towards the bottom. |
| scaled += (height * width * 4) - |
| ((local_renderer->height() / 2) * |
| (local_renderer->width() / 2) * 4); |
| // bottom margin... |
| scaled -= (width * 2) * 5; |
| for (int r = 0; r < local_renderer->height(); r += 2) { |
| for (int c = 0; c < local_renderer->width(); c += 2) { |
| scaled[c / 2] = image[c + r * local_renderer->width()]; |
| } |
| scaled += width * 2; |
| } |
| } |
| |
| gdk_draw_rgb_32_image(draw_area_->window, |
| draw_area_->style->fg_gc[GTK_STATE_NORMAL], |
| 0, |
| 0, |
| width * 2, |
| height * 2, |
| GDK_RGB_DITHER_MAX, |
| draw_buffer_.get(), |
| (width * 2) * 4); |
| } |
| |
| gdk_threads_leave(); |
| } |
| |
| GtkMainWnd::VideoRenderer::VideoRenderer( |
| GtkMainWnd* main_wnd, |
| webrtc::VideoTrackInterface* track_to_render) |
| : width_(0), |
| height_(0), |
| main_wnd_(main_wnd), |
| rendered_track_(track_to_render) { |
| rendered_track_->AddOrUpdateSink(this, rtc::VideoSinkWants()); |
| } |
| |
| GtkMainWnd::VideoRenderer::~VideoRenderer() { |
| rendered_track_->RemoveSink(this); |
| } |
| |
| void GtkMainWnd::VideoRenderer::SetSize(int width, int height) { |
| gdk_threads_enter(); |
| |
| if (width_ == width && height_ == height) { |
| return; |
| } |
| |
| width_ = width; |
| height_ = height; |
| image_.reset(new uint8_t[width * height * 4]); |
| gdk_threads_leave(); |
| } |
| |
| void GtkMainWnd::VideoRenderer::OnFrame( |
| const cricket::VideoFrame& video_frame) { |
| gdk_threads_enter(); |
| |
| const cricket::VideoFrame* frame = video_frame.GetCopyWithRotationApplied(); |
| |
| SetSize(frame->width(), frame->height()); |
| |
| int size = width_ * height_ * 4; |
| // TODO(henrike): Convert directly to RGBA |
| frame->ConvertToRgbBuffer(cricket::FOURCC_ARGB, |
| image_.get(), |
| size, |
| width_ * 4); |
| // Convert the B,G,R,A frame to R,G,B,A, which is accepted by GTK. |
| // The 'A' is just padding for GTK, so we can use it as temp. |
| uint8_t* pix = image_.get(); |
| uint8_t* end = image_.get() + size; |
| while (pix < end) { |
| pix[3] = pix[0]; // Save B to A. |
| pix[0] = pix[2]; // Set Red. |
| pix[2] = pix[3]; // Set Blue. |
| pix[3] = 0xFF; // Fixed Alpha. |
| pix += 4; |
| } |
| |
| gdk_threads_leave(); |
| |
| g_idle_add(Redraw, main_wnd_); |
| } |