generic-library/webrtc
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
8811e5af02
webrtc/peerconnection/samples/client/linux/main_wnd.cc

462 lines
13 KiB
C++
Raw Blame History

/*
* Copyright (c) 2011 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 "peerconnection/samples/client/linux/main_wnd.h"
#include <gdk/gdkkeysyms.h>
#include <gtk/gtk.h>
#include <stddef.h>
#include "peerconnection/samples/client/defaults.h"
#include "talk/base/common.h"
#include "talk/base/logging.h"
#include "talk/base/stringutils.h"
using talk_base::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 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);
}
// 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;
}
} // end anonymous
//
// GtkMainWnd implementation.
//
GtkMainWnd::GtkMainWnd()
: window_(NULL), draw_area_(NULL), vbox_(NULL), server_edit_(NULL),
port_edit_(NULL), peer_list_(NULL), callback_(NULL),
server_("localhost") {
char buffer[10];
sprintfn(buffer, sizeof(buffer), "%i", kDefaultServerPort);
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;
}
cricket::VideoRenderer* GtkMainWnd::local_renderer() {
ASSERT(local_renderer_.get() != NULL);
return local_renderer_.get();
}
cricket::VideoRenderer* GtkMainWnd::remote_renderer() {
ASSERT(remote_renderer_.get() != NULL);
return remote_renderer_.get();
}
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_);
}
void GtkMainWnd::SwitchToPeerList(const Peers& peers) {
LOG(INFO) << __FUNCTION__;
// Clean up buffers from a potential previous session.
local_renderer_.reset();
remote_renderer_.reset();
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);
}
void GtkMainWnd::SwitchToStreamingUI() {
LOG(INFO) << __FUNCTION__;
ASSERT(draw_area_ == NULL);
// Prepare new buffers for the new conversation. We don't
// reuse buffers across sessions to avoid possibly rendering
// a frame from the previous conversation.
remote_renderer_.reset(new VideoRenderer(this));
local_renderer_.reset(new VideoRenderer(this));
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) {
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();
if (remote_renderer_.get() && 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[draw_buffer_size_]);
gtk_widget_set_size_request(draw_area_, width * 2, height * 2);
}
const uint32* image = reinterpret_cast<const uint32*>(
remote_renderer_->image());
uint32* scaled = reinterpret_cast<uint32*>(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* prev_line = scaled;
scaled += width * 2;
memcpy(scaled, prev_line, (width * 2) * 4);
image += width;
scaled += width * 2;
}
image = reinterpret_cast<const uint32*>(local_renderer_->image());
scaled = reinterpret_cast<uint32*>(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)
: width_(0), height_(0), main_wnd_(main_wnd) {
}
GtkMainWnd::VideoRenderer::~VideoRenderer() {
}
bool GtkMainWnd::VideoRenderer::SetSize(int width, int height, int reserved) {
gdk_threads_enter();
width_ = width;
height_ = height;
image_.reset(new uint8[width * height * 4]);
gdk_threads_leave();
return true;
}
bool GtkMainWnd::VideoRenderer::RenderFrame(const cricket::VideoFrame* frame) {
gdk_threads_enter();
int size = width_ * height_ * 4;
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* pix = image_.get();
uint8* 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_);
return true;
}
Reference in New Issue View Git Blame Copy Permalink