-// Copyright 2005 Ben Hutchings <ben@decadentplace.org.uk>.
+// Copyright 2005-6 Ben Hutchings <ben@decadentplace.org.uk>.
// See the file "COPYING" for licence details.
#include <cassert>
+#include <cstring>
#include <exception>
#include <fstream>
#include <iomanip>
#include <string>
#include <stdlib.h>
-#include <unistd.h>
#include <boost/shared_ptr.hpp>
#include <nsIContent.h>
#include <nsIDocShell.h>
#include <nsIDOMAbstractView.h>
+#include <nsIDOMBarProp.h>
#include <nsIDOMDocumentEvent.h>
#include <nsIDOMDocumentView.h>
#include <nsIDOMElement.h>
#include <nsIInterfaceRequestorUtils.h>
#include <nsIURI.h> // required before nsILink.h
#include <nsILink.h>
+#include <nsIPrefBranch.h>
+#include <nsIPrefService.h>
#include <nsIPresContext.h>
#include <nsIPresShell.h>
+#include <nsIServiceManagerUtils.h>
#include <nsIWebBrowser.h>
#include <nsString.h>
-#include "browserwidget.hpp"
-#include "childiterator.hpp"
+#include "browser_widget.hpp"
+#include "child_iterator.hpp"
#include "dvd.hpp"
-#include "framebuffer.hpp"
-#include "linkiterator.hpp"
+#include "generate_dvd.hpp"
+#include "link_iterator.hpp"
#include "pixbufs.hpp"
-#include "stylesheets.hpp"
+#include "style_sheets.hpp"
#include "temp_file.hpp"
#include "video.hpp"
+#include "x_frame_buffer.hpp"
+#include "xml_utils.hpp"
#include "xpcom_support.hpp"
using xpcom_support::check;
{
rectangle result;
+ // Start with this element's bounding box
nsCOMPtr<nsIBoxObject> box;
check(ns_doc->GetBoxObjectFor(elem, getter_AddRefs(box)));
int width, height;
result.right = result.left + width;
result.bottom = result.top + height;
- for (ChildIterator it = ChildIterator(elem), end; it != end; ++it)
+ // Merge bounding boxes of all child elements
+ for (child_iterator it = child_iterator(elem), end; it != end; ++it)
{
nsCOMPtr<nsIDOMNode> child_node(*it);
PRUint16 child_type;
return result;
}
- class WebDvdWindow : public Gtk::Window
+
+ class webdvd_window : public Gtk::Window
{
public:
- WebDvdWindow(
+ webdvd_window(
const video::frame_params & frame_params,
const std::string & main_page_uri,
const std::string & output_dir);
private:
- void add_page(const std::string & uri);
- void add_video(const std::string & uri);
+ dvd_contents::pgc_ref add_menu(const std::string & uri);
+ dvd_contents::pgc_ref add_title(const std::string & uri);
void load_next_page();
void on_net_state_change(const char * uri, gint flags, guint status);
+ bool browser_is_busy() const
+ {
+ return pending_window_update_ || pending_req_count_;
+ }
+ bool process_page();
void save_screenshot();
void process_links(nsIPresShell * pres_shell,
nsIPresContext * pres_context,
nsIDOMWindow * dom_window);
- void generate_dvd();
- enum ResourceType { page_resource, video_resource };
- typedef std::pair<ResourceType, int> ResourceEntry;
video::frame_params frame_params_;
std::string output_dir_;
- BrowserWidget browser_widget_;
+ browser_widget browser_widget_;
nsCOMPtr<nsIStyleSheet> stylesheet_;
+
+ dvd_contents contents_;
+ typedef std::map<std::string, dvd_contents::pgc_ref> resource_map_type;
+ resource_map_type resource_map_;
+
std::queue<std::string> page_queue_;
- std::map<std::string, ResourceEntry> resource_map_;
- std::vector<std::vector<std::string> > page_links_;
- std::vector<std::string> video_paths_;
- bool loading_;
+ bool pending_window_update_;
int pending_req_count_;
+ bool have_tweaked_page_;
std::auto_ptr<temp_file> background_temp_;
- struct link_state;
- std::auto_ptr<link_state> link_state_;
- std::vector<boost::shared_ptr<temp_file> > page_temp_files_;
+ struct page_state;
+ std::auto_ptr<page_state> page_state_;
};
- WebDvdWindow::WebDvdWindow(
+ webdvd_window::webdvd_window(
const video::frame_params & frame_params,
const std::string & main_page_uri,
const std::string & output_dir)
: frame_params_(frame_params),
output_dir_(output_dir),
stylesheet_(load_css("file://" WEBDVD_LIB_DIR "/webdvd.css")),
- loading_(false),
- pending_req_count_(0)
+ pending_window_update_(false),
+ pending_req_count_(0),
+ have_tweaked_page_(false)
{
- set_default_size(frame_params_.width, frame_params_.height);
+ set_size_request(frame_params_.width, frame_params_.height);
+ set_resizable(false);
+
add(browser_widget_);
browser_widget_.show();
browser_widget_.signal_net_state().connect(
- SigC::slot(*this, &WebDvdWindow::on_net_state_change));
+ SigC::slot(*this, &webdvd_window::on_net_state_change));
- add_page(main_page_uri);
+ add_menu(main_page_uri);
load_next_page();
}
- void WebDvdWindow::add_page(const std::string & uri)
+ dvd_contents::pgc_ref webdvd_window::add_menu(const std::string & uri)
{
- if (resource_map_.insert(
- std::make_pair(uri, ResourceEntry(page_resource, 0)))
- .second)
+ dvd_contents::pgc_ref next_menu(dvd_contents::menu_pgc,
+ contents_.menus.size());
+ std::pair<resource_map_type::iterator, bool> insert_result(
+ resource_map_.insert(std::make_pair(uri, next_menu)));
+
+ if (!insert_result.second)
+ {
+ return insert_result.first->second;
+ }
+ else
{
page_queue_.push(uri);
+ contents_.menus.resize(contents_.menus.size() + 1);
+ return next_menu;
}
}
- void WebDvdWindow::add_video(const std::string & uri)
+ dvd_contents::pgc_ref webdvd_window::add_title(const std::string & uri)
{
- if (resource_map_.insert(
- std::make_pair(uri, ResourceEntry(video_resource,
- video_paths_.size() + 1)))
- .second)
+ dvd_contents::pgc_ref next_title(dvd_contents::title_pgc,
+ contents_.titles.size());
+ std::pair<resource_map_type::iterator, bool> insert_result(
+ resource_map_.insert(std::make_pair(uri, next_title)));
+
+ if (!insert_result.second)
{
- // FIXME: Should accept some slightly different URI prefixes
- // (e.g. file://localhost/) and decode any URI-escaped
- // characters in the path.
- assert(uri.compare(0, 8, "file:///") == 0);
- video_paths_.push_back(uri.substr(7));
+ return insert_result.first->second;
+ }
+ else
+ {
+ Glib::ustring hostname;
+ std::string path(Glib::filename_from_uri(uri, hostname));
+ // FIXME: Should check the hostname
+
+ vob_list list;
+
+ // Store a reference to a linked VOB file, or the contents
+ // of a linked VOB list file.
+ if (path.compare(path.size() - 4, 4, ".vob") == 0)
+ {
+ if (!Glib::file_test(path, Glib::FILE_TEST_IS_REGULAR))
+ throw std::runtime_error(
+ path + " is missing or not a regular file");
+ vob_ref ref;
+ ref.file = path;
+ list.push_back(ref);
+ }
+ else
+ {
+ assert(path.compare(path.size() - 8, 8, ".voblist") == 0);
+ read_vob_list(path).swap(list);
+ }
+
+ contents_.titles.resize(contents_.titles.size() + 1);
+ contents_.titles.back().swap(list);
+ return next_title;
}
}
- void WebDvdWindow::load_next_page()
+ void webdvd_window::load_next_page()
{
- loading_ = true;
-
assert(!page_queue_.empty());
const std::string & uri = page_queue_.front();
std::cout << "loading " << uri << std::endl;
- std::size_t page_count = page_links_.size();
- resource_map_[uri].second = ++page_count;
- page_links_.resize(page_count);
browser_widget_.load_uri(uri);
}
- void WebDvdWindow::on_net_state_change(const char * uri,
+ void webdvd_window::on_net_state_change(const char * uri,
gint flags, guint status)
{
- enum {
- process_nothing,
- process_new_page,
- process_current_link
- } action = process_nothing;
+# ifdef DEBUG_ON_NET_STATE_CHANGE
+ std::cout << "webdvd_window::on_net_state_change(";
+ if (uri)
+ std::cout << '"' << uri << '"';
+ else
+ std::cout << "NULL";
+ std::cout << ", ";
+ {
+ gint flags_left = flags;
+ static const struct {
+ gint value;
+ const char * name;
+ } flag_names[] = {
+ { GTK_MOZ_EMBED_FLAG_START, "STATE_START" },
+ { GTK_MOZ_EMBED_FLAG_REDIRECTING, "STATE_REDIRECTING" },
+ { GTK_MOZ_EMBED_FLAG_TRANSFERRING, "STATE_TRANSFERRING" },
+ { GTK_MOZ_EMBED_FLAG_NEGOTIATING, "STATE_NEGOTIATING" },
+ { GTK_MOZ_EMBED_FLAG_STOP, "STATE_STOP" },
+ { GTK_MOZ_EMBED_FLAG_IS_REQUEST, "STATE_IS_REQUEST" },
+ { GTK_MOZ_EMBED_FLAG_IS_DOCUMENT, "STATE_IS_DOCUMENT" },
+ { GTK_MOZ_EMBED_FLAG_IS_NETWORK, "STATE_IS_NETWORK" },
+ { GTK_MOZ_EMBED_FLAG_IS_WINDOW, "STATE_IS_WINDOW" }
+ };
+ for (int i = 0; i != sizeof(flag_names)/sizeof(flag_names[0]); ++i)
+ {
+ if (flags & flag_names[i].value)
+ {
+ std::cout << flag_names[i].name;
+ flags_left -= flag_names[i].value;
+ if (flags_left)
+ std::cout << " | ";
+ }
+ }
+ if (flags_left)
+ std::cout << "0x" << std::setbase(16) << flags_left;
+ }
+ std::cout << ", " << "0x" << std::setbase(16) << status << ")\n";
+# endif // DEBUG_ON_NET_STATE_CHANGE
if (flags & GTK_MOZ_EMBED_FLAG_IS_REQUEST)
{
if (flags & GTK_MOZ_EMBED_FLAG_START)
++pending_req_count_;
+
if (flags & GTK_MOZ_EMBED_FLAG_STOP)
{
assert(pending_req_count_ != 0);
--pending_req_count_;
}
- if (pending_req_count_ == 0 && link_state_.get())
- action = process_current_link;
}
- if (flags & GTK_MOZ_EMBED_FLAG_STOP
- && flags & GTK_MOZ_EMBED_FLAG_IS_WINDOW)
- action = process_new_page;
+ if (flags & GTK_MOZ_EMBED_FLAG_IS_DOCUMENT
+ && flags & GTK_MOZ_EMBED_FLAG_START)
+ {
+ pending_window_update_ = true;
+ have_tweaked_page_ = false;
+ }
- if (action != process_nothing)
+ if (flags & GTK_MOZ_EMBED_FLAG_IS_WINDOW
+ && flags & GTK_MOZ_EMBED_FLAG_STOP)
{
- assert(loading_ && !page_queue_.empty());
- assert(pending_req_count_ == 0);
+ // Check whether the load was successful, ignoring this
+ // pseudo-error.
+ if (status != NS_IMAGELIB_ERROR_LOAD_ABORTED)
+ check(status);
+ pending_window_update_ = false;
+ }
+
+ if (!browser_is_busy())
+ {
try
{
- // Check whether the load was successful, ignoring this
- // pseudo-error.
- if (status != NS_IMAGELIB_ERROR_LOAD_ABORTED)
- check(status);
-
- nsCOMPtr<nsIWebBrowser> browser(
- browser_widget_.get_browser());
- nsCOMPtr<nsIDocShell> doc_shell(do_GetInterface(browser));
- assert(doc_shell);
- nsCOMPtr<nsIPresShell> pres_shell;
- check(doc_shell->GetPresShell(getter_AddRefs(pres_shell)));
- nsCOMPtr<nsIPresContext> pres_context;
- check(doc_shell->GetPresContext(
- getter_AddRefs(pres_context)));
- nsCOMPtr<nsIDOMWindow> dom_window;
- check(browser->GetContentDOMWindow(
- getter_AddRefs(dom_window)));
-
- if (action == process_new_page)
- {
- apply_style_sheet(stylesheet_, pres_shell);
- save_screenshot();
- }
- process_links(pres_shell, pres_context, dom_window);
- if (!link_state_.get())
- {
- page_queue_.pop();
- if (page_queue_.empty())
- {
- generate_dvd();
- Gtk::Main::quit();
- }
- else
- load_next_page();
- }
+ if (!process_page())
+ Gtk::Main::quit();
}
catch (std::exception & e)
{
std::cerr << ": " << e.what() << "\n";
Gtk::Main::quit();
}
+ catch (Glib::Exception & e)
+ {
+ std::cerr << "Fatal error";
+ if (!page_queue_.empty())
+ std::cerr << " while processing <" << page_queue_.front()
+ << ">";
+ std::cerr << ": " << e.what() << "\n";
+ Gtk::Main::quit();
+ }
+ }
+ }
+
+ bool webdvd_window::process_page()
+ {
+ assert(!page_queue_.empty());
+
+ nsCOMPtr<nsIWebBrowser> browser(browser_widget_.get_browser());
+ nsCOMPtr<nsIDocShell> doc_shell(do_GetInterface(browser));
+ assert(doc_shell);
+ nsCOMPtr<nsIPresShell> pres_shell;
+ check(doc_shell->GetPresShell(getter_AddRefs(pres_shell)));
+ nsCOMPtr<nsIPresContext> pres_context;
+ check(doc_shell->GetPresContext(getter_AddRefs(pres_context)));
+ nsCOMPtr<nsIDOMWindow> dom_window;
+ check(browser->GetContentDOMWindow(getter_AddRefs(dom_window)));
+
+ // If we haven't done so already, apply the stylesheet and
+ // disable scrollbars.
+ if (!have_tweaked_page_)
+ {
+ apply_style_sheet(stylesheet_, pres_shell);
+
+ // This actually only needs to be done once.
+ nsCOMPtr<nsIDOMBarProp> dom_bar_prop;
+ check(dom_window->GetScrollbars(getter_AddRefs(dom_bar_prop)));
+ check(dom_bar_prop->SetVisible(false));
+
+ have_tweaked_page_ = true;
+
+ // Might need to wait a while for things to load or more
+ // likely for a re-layout.
+ if (browser_is_busy())
+ return true;
+ }
+
+ // All further work should only be done if we're not in preview mode.
+ if (!output_dir_.empty())
+ {
+ // If we haven't already started work on this menu, save a
+ // screenshot of its normal appearance.
+ if (!page_state_.get())
+ save_screenshot();
+
+ // Start or continue processing links.
+ process_links(pres_shell, pres_context, dom_window);
+
+ // If we've finished work on the links, move on to the
+ // next page, if any, or else generate the DVD filesystem.
+ if (!page_state_.get())
+ {
+ page_queue_.pop();
+ if (page_queue_.empty())
+ {
+ generate_dvd(contents_, output_dir_);
+ return false;
+ }
+ else
+ {
+ load_next_page();
+ }
+ }
}
+
+ return true;
}
- void WebDvdWindow::save_screenshot()
+ void webdvd_window::save_screenshot()
{
Glib::RefPtr<Gdk::Window> window(get_window());
assert(window);
->save(background_temp_->get_name(), "png");
}
- struct WebDvdWindow::link_state
+ struct webdvd_window::page_state
{
+ page_state(nsIDOMDocument * doc, int width, int height)
+ : diff_pixbuf(Gdk::Pixbuf::create(
+ Gdk::COLORSPACE_RGB,
+ true, 8, // has_alpha, bits_per_sample
+ width, height)),
+ spumux_temp("webdvd-spumux-"),
+ links_temp("webdvd-links-"),
+ link_num(0),
+ links_it(doc),
+ link_changing(false)
+ {
+ spumux_temp.close();
+ links_temp.close();
+ }
+
Glib::RefPtr<Gdk::Pixbuf> diff_pixbuf;
- std::auto_ptr<temp_file> spumux_temp;
+ temp_file spumux_temp;
std::ofstream spumux_file;
- std::auto_ptr<temp_file> links_temp;
+ temp_file links_temp;
- int link_num;
- LinkIterator links_it, links_end;
+ unsigned link_num;
+ link_iterator links_it, links_end;
rectangle link_rect;
bool link_changing;
Glib::RefPtr<Gdk::Pixbuf> norm_pixbuf;
};
- void WebDvdWindow::process_links(nsIPresShell * pres_shell,
+ void webdvd_window::process_links(nsIPresShell * pres_shell,
nsIPresContext * pres_context,
nsIDOMWindow * dom_window)
{
check(doc_view->GetDefaultView(getter_AddRefs(view)));
// Set up or recover our iteration state.
- std::auto_ptr<link_state> state(link_state_);
+ std::auto_ptr<page_state> state(page_state_);
if (!state.get())
{
- state.reset(new link_state);
-
- state->diff_pixbuf = Gdk::Pixbuf::create(
- Gdk::COLORSPACE_RGB,
- true, 8, // has_alpha, bits_per_sample
- frame_params_.width, frame_params_.height);
-
- state->spumux_temp.reset(new temp_file("webdvd-spumux-"));
- state->spumux_temp->close();
-
- state->links_temp.reset(new temp_file("webdvd-links-"));
- state->links_temp->close();
+ state.reset(
+ new page_state(
+ basic_doc, frame_params_.width, frame_params_.height));
- state->spumux_file.open(state->spumux_temp->get_name().c_str());
+ state->spumux_file.open(state->spumux_temp.get_name().c_str());
state->spumux_file <<
"<subpictures>\n"
" <stream>\n"
" <spu force='yes' start='00:00:00.00'\n"
- " highlight='" << state->links_temp->get_name()
- << "'\n"
- " select='" << state->links_temp->get_name()
- << "'>\n";
-
- state->link_num = 0;
- state->links_it = LinkIterator(basic_doc);
- state->link_changing = false;
+ " highlight='" << state->links_temp.get_name() << "'\n"
+ " select='" << state->links_temp.get_name() << "'>\n";
}
-
+
rectangle window_rect = {
0, 0, frame_params_.width, frame_params_.height
};
+ unsigned menu_num = resource_map_[page_queue_.front()].index;
+
for (/* no initialisation */;
state->links_it != state->links_end;
++state->links_it)
{
nsCOMPtr<nsIDOMNode> node(*state->links_it);
- // Find the link URI.
+ // Find the link URI and separate any fragment from it.
nsCOMPtr<nsILink> link(do_QueryInterface(node));
assert(link);
- nsCOMPtr<nsIURI> uri;
- check(link->GetHrefURI(getter_AddRefs(uri)));
- std::string uri_string;
+ nsCOMPtr<nsIURI> uri_iface;
+ check(link->GetHrefURI(getter_AddRefs(uri_iface)));
+ std::string uri_and_fragment, uri, fragment;
{
- nsCString uri_ns_string;
- check(uri->GetSpec(uri_ns_string));
- uri_string.assign(uri_ns_string.BeginReading(),
- uri_ns_string.EndReading());
+ nsCString uri_and_fragment_ns;
+ check(uri_iface->GetSpec(uri_and_fragment_ns));
+ uri_and_fragment.assign(uri_and_fragment_ns.BeginReading(),
+ uri_and_fragment_ns.EndReading());
+
+ std::size_t hash_pos = uri_and_fragment.find('#');
+ uri.assign(uri_and_fragment, 0, hash_pos);
+ if (hash_pos != std::string::npos)
+ fragment.assign(uri_and_fragment,
+ hash_pos + 1, std::string::npos);
}
- std::string uri_sans_fragment(uri_string, 0, uri_string.find('#'));
// Is this a new link?
if (!state->link_changing)
if (state->link_rect.empty())
{
std::cerr << "Ignoring invisible link to "
- << uri_string << "\n";
+ << uri_and_fragment << "\n";
continue;
}
++state->link_num;
- if (state->link_num >= dvd::menu_buttons_max)
+ if (state->link_num >= unsigned(dvd::menu_buttons_max))
{
- if (state->link_num == dvd::menu_buttons_max)
+ if (state->link_num == unsigned(dvd::menu_buttons_max))
std::cerr << "No more than " << dvd::menu_buttons_max
- << " buttons can be placed on a page\n";
- std::cerr << "Ignoring link to " << uri_string << "\n";
+ << " buttons can be placed on a menu\n";
+ std::cerr << "Ignoring link to " << uri_and_fragment
+ << "\n";
continue;
}
+ state->spumux_file <<
+ " <button x0='" << state->link_rect.left << "'"
+ " y0='" << state->link_rect.top << "'"
+ " x1='" << state->link_rect.right - 1 << "'"
+ " y1='" << state->link_rect.bottom - 1 << "'/>\n";
+
// Check whether this is a link to a video or a page then
- // add it to the known resources if not already seen.
- nsCString path;
- check(uri->GetPath(path));
+ // add it to the known resources if not already seen; then
+ // add it to the menu entries.
+ dvd_contents::pgc_ref target;
// FIXME: This is a bit of a hack. Perhaps we could decide
// later based on the MIME type determined by Mozilla?
- if (path.Length() > 4
- && std::strcmp(path.EndReading() - 4, ".vob") == 0)
+ if ((uri.size() > 4
+ && uri.compare(uri.size() - 4, 4, ".vob") == 0)
+ || (uri.size() > 8
+ && uri.compare(uri.size() - 8, 8, ".voblist") == 0))
{
PRBool is_file;
- check(uri->SchemeIs("file", &is_file));
+ check(uri_iface->SchemeIs("file", &is_file));
if (!is_file)
{
std::cerr << "Links to video must use the file:"
<< " scheme\n";
continue;
}
- add_video(uri_sans_fragment);
+ target = add_title(uri);
+ target.sub_index =
+ std::strtoul(fragment.c_str(), NULL, 10);
}
else
{
- add_page(uri_sans_fragment);
+ target = add_menu(uri);
+ // TODO: If there's a fragment, work out which button
+ // is closest and set target.sub_index.
}
+ contents_.menus[menu_num].entries.push_back(target);
nsCOMPtr<nsIContent> content(do_QueryInterface(node));
assert(content);
// We may have to exit and wait for image loading
// to complete, at which point we will be called
// again.
- if (pending_req_count_ > 0)
+ if (browser_is_busy())
{
state->link_changing = true;
- link_state_ = state;
+ page_state_ = state;
return;
}
}
state->link_rect.top,
state->link_rect.right - state->link_rect.left,
state->link_rect.bottom - state->link_rect.top);
-
- state->spumux_file <<
- " <button x0='" << state->link_rect.left << "'"
- " y0='" << state->link_rect.top << "'"
- " x1='" << state->link_rect.right - 1 << "'"
- " y1='" << state->link_rect.bottom - 1 << "'/>\n";
-
- // Add to the page's links, ignoring any fragment (for now).
- page_links_.back().push_back(uri_sans_fragment);
}
quantise_rgba_pixbuf(state->diff_pixbuf, dvd::button_n_colours);
- std::cout << "saving " << state->links_temp->get_name()
+ std::cout << "saving " << state->links_temp.get_name()
<< std::endl;
- state->diff_pixbuf->save(state->links_temp->get_name(), "png");
+ state->diff_pixbuf->save(state->links_temp.get_name(), "png");
state->spumux_file <<
" </spu>\n"
// TODO: if (!state->spumux_file) throw ...
{
- boost::shared_ptr<temp_file> vob_temp(
- new temp_file("webdvd-vob-"));
std::ostringstream command_stream;
command_stream << "pngtopnm "
<< background_temp_->get_name()
" | mpeg2enc -v0 -f8 -a2 -o/dev/stdout"
" | mplex -v0 -f8 -o/dev/stdout /dev/stdin"
" | spumux -v0 -mdvd ")
- << state->spumux_temp->get_name()
- << " > " << vob_temp->get_name();
+ << state->spumux_temp.get_name()
+ << " > "
+ << contents_.menus[menu_num].vob_temp->get_name();
std::string command(command_stream.str());
const char * argv[] = {
"/bin/sh", "-c", command.c_str(), 0
&command_result);
if (command_result != 0)
throw std::runtime_error("spumux pipeline failed");
-
- page_temp_files_.push_back(vob_temp);
- }
- }
-
- void generate_page_dispatch(std::ostream &, int indent,
- int first_page, int last_page);
-
- void WebDvdWindow::generate_dvd()
- {
- temp_file temp("webdvd-dvdauthor-");
- temp.close();
- std::ofstream file(temp.get_name().c_str());
-
- // We generate code that uses registers in the following way:
- //
- // g0: link destination (when jumping to menu 1), then scratch
- // g1: current location
- // g2-g11: location history (g2 = most recent)
- // g12: location that last linked to a video
- //
- // All locations are divided into two bitfields: the least
- // significant 10 bits are a page/menu number and the most
- // significant 6 bits are a link/button number. This is
- // chosen for compatibility with the encoding of the s8
- // (button) register.
- //
- static const int link_mult = dvd::reg_s8_button_mult;
- static const int page_mask = link_mult - 1;
- static const int link_mask = (1 << dvd::reg_bits) - link_mult;
-
- file <<
- "<dvdauthor>\n"
- " <vmgm>\n"
- " <menus>\n";
-
- for (std::size_t page_num = 1;
- page_num <= page_links_.size();
- ++page_num)
- {
- std::vector<std::string> & page_links =
- page_links_[page_num - 1];
-
- if (page_num == 1)
- {
- // This is the first page (root menu) which needs to
- // include initialisation and dispatch code.
-
- file <<
- " <pgc entry='title'>\n"
- " <pre>\n"
- // Has the location been set yet?
- " if (g1 eq 0)\n"
- " {\n"
- // Initialise the current location to first link on
- // this page.
- " g1 = " << 1 * link_mult + 1 << ";\n"
- " }\n"
- " else\n"
- " {\n"
- // Has the user selected a link?
- " if (g0 ne 0)\n"
- " {\n"
- // First update the history.
- // Does link go to the last page in the history?
- " if (((g0 ^ g2) & " << page_mask
- << ") == 0)\n"
- // It does; we treat this as going back and pop the old
- // location off the history stack into the current
- // location. Clear the free stack slot.
- " {\n"
- " g1 = g2; g2 = g3; g3 = g4; g4 = g5;\n"
- " g5 = g6; g6 = g7; g7 = g8; g8 = g9;\n"
- " g9 = g10; g10 = g11; g11 = 0;\n"
- " }\n"
- " else\n"
- // Link goes to some other page, so push current
- // location onto the history stack and set the current
- // location to be exactly the target location.
- " {\n"
- " g11 = g10; g10 = g9; g9 = g8; g8 = g7;\n"
- " g7 = g6; g6 = g5; g5 = g4; g4 = g3;\n"
- " g3 = g2; g2 = g1; g1 = g0;\n"
- " }\n"
- " }\n"
- // Find the target page number.
- " g0 = g1 & " << page_mask << ";\n";
- // There seems to be no way to perform a computed jump,
- // so we generate all possible jumps and a binary search
- // to select the correct one.
- generate_page_dispatch(file, 12, 1, page_links_.size());
- file <<
- " }\n";
- }
- else // page_num != 1
- {
- file <<
- " <pgc>\n"
- " <pre>\n";
- }
-
- file <<
- // Clear link indicator and highlight the
- // appropriate link/button.
- " g0 = 0; s8 = g1 & " << link_mask << ";\n"
- " </pre>\n"
- " <vob file='"
- << page_temp_files_[page_num - 1]->get_name() << "'/>\n";
-
- for (std::size_t link_num = 1;
- link_num <= page_links.size();
- ++link_num)
- {
- file <<
- " <button>"
- // Update current location.
- " g1 = " << link_num * link_mult + page_num << ";";
-
- // Jump to appropriate resource.
- const ResourceEntry & resource_loc =
- resource_map_[page_links[link_num - 1]];
- if (resource_loc.first == page_resource)
- file <<
- " g0 = " << 1 * link_mult + resource_loc.second << ";"
- " jump menu 1;";
- else if (resource_loc.first == video_resource)
- file << " jump title " << resource_loc.second << ";";
-
- file << " </button>\n";
- }
-
- file << " </pgc>\n";
- }
-
- file <<
- " </menus>\n"
- " </vmgm>\n";
-
- // Generate a titleset for each video. This appears to make
- // jumping to titles a whole lot simpler.
- for (std::size_t video_num = 1;
- video_num <= video_paths_.size();
- ++video_num)
- {
- file <<
- " <titleset>\n"
- // Generate a dummy menu so that the menu button on the
- // remote control will work.
- " <menus>\n"
- " <pgc entry='root'>\n"
- " <pre> jump vmgm menu; </pre>\n"
- " </pgc>\n"
- " </menus>\n"
- " <titles>\n"
- " <pgc>\n"
- // Record calling page/menu.
- " <pre> g12 = g1; </pre>\n"
- // FIXME: Should XML-escape the path
- " <vob file='" << video_paths_[video_num - 1]
- << "'/>\n"
- // If page/menu location has not been changed during the
- // video, change the location to be the following
- // link/button when returning to it. In any case,
- // return to a page/menu.
- " <post> if (g1 eq g12) g1 = g1 + " << link_mult
- << "; call menu; </post>\n"
- " </pgc>\n"
- " </titles>\n"
- " </titleset>\n";
- }
-
- file <<
- "</dvdauthor>\n";
-
- file.close();
-
- {
- const char * argv[] = {
- "dvdauthor",
- "-o", output_dir_.c_str(),
- "-x", temp.get_name().c_str(),
- 0
- };
- int command_result;
- Glib::spawn_sync(".",
- Glib::ArrayHandle<std::string>(
- argv, sizeof(argv)/sizeof(argv[0]),
- Glib::OWNERSHIP_NONE),
- Glib::SPAWN_SEARCH_PATH
- | Glib::SPAWN_STDOUT_TO_DEV_NULL,
- SigC::Slot0<void>(),
- 0, 0,
- &command_result);
- if (command_result != 0)
- throw std::runtime_error("dvdauthor failed");
- }
- }
-
- void generate_page_dispatch(std::ostream & file, int indent,
- int first_page, int last_page)
- {
- if (first_page == 1 && last_page == 1)
- {
- // The dispatch code is *on* page 1 so we must not dispatch to
- // page 1 since that would cause an infinite loop. This case
- // should be unreachable if there is more than one page due
- // to the following case.
- }
- else if (first_page == 1 && last_page == 2)
- {
- // dvdauthor doesn't allow empty blocks or null statements so
- // when selecting between pages 1 and 2 we don't use an "else"
- // part. We must use braces so that a following "else" will
- // match the right "if".
- file << std::setw(indent) << "" << "{\n"
- << std::setw(indent) << "" << "if (g0 eq 2)\n"
- << std::setw(indent + 2) << "" << "jump menu 2;\n"
- << std::setw(indent) << "" << "}\n";
- }
- else if (first_page == last_page)
- {
- file << std::setw(indent) << ""
- << "jump menu " << first_page << ";\n";
- }
- else
- {
- int middle = (first_page + last_page) / 2;
- file << std::setw(indent) << "" << "if (g0 le " << middle << ")\n";
- generate_page_dispatch(file, indent + 2, first_page, middle);
- file << std::setw(indent) << "" << "else\n";
- generate_page_dispatch(file, indent + 2, middle + 1, last_page);
}
}
std::string("Invalid video standard: ").append(str));
}
+ void print_usage(std::ostream & stream, const char * command_name)
+ {
+ stream << "Usage: " << command_name
+ << (" [gtk-options] [--video-std std-name]"
+ " [--preview] menu-url [output-dir]\n");
+ }
+
+ void set_browser_preferences()
+ {
+ nsCOMPtr<nsIPrefService> pref_service;
+ static const nsCID pref_service_cid = NS_PREFSERVICE_CID;
+ check(CallGetService<nsIPrefService>(pref_service_cid,
+ getter_AddRefs(pref_service)));
+ nsCOMPtr<nsIPrefBranch> pref_branch;
+
+ // Disable IE-compatibility kluge that causes backgrounds to
+ // sometimes/usually be missing from snapshots. This is only
+ // effective from Mozilla 1.8 onward.
+# if MOZ_VERSION_MAJOR > 1 \
+ || (MOZ_VERSION_MAJOR == 1 && MOZ_VERSION_MINOR >= 8)
+ check(pref_service->GetDefaultBranch("layout",
+ getter_AddRefs(pref_branch)));
+ check(pref_branch->SetBoolPref(
+ "fire_onload_after_image_background_loads",
+ true));
+# endif
+
+ // Set display resolution. With standard-definition video we
+ // will be fitting ~600 pixels across a screen typically
+ // ranging from 10 to 25 inches wide, for a resolution of
+ // 24-60 dpi. I therefore declare the average horizontal
+ // resolution to be 40 dpi. The vertical resolution will be
+ // slightly higher (PAL/SECAM) or lower (NTSC), but
+ // unfortunately Mozilla doesn't support non-square pixels
+ // (and neither do fontconfig or Xft anyway).
+ check(pref_service->GetDefaultBranch("browser.display",
+ getter_AddRefs(pref_branch)));
+ check(pref_branch->SetIntPref("screen_resolution", 40));
+ }
+
} // namespace
int main(int argc, char ** argv)
{
try
{
- // Determine video frame parameters.
video::frame_params frame_params = video::pal_params;
- for (int argi = 1; argi != argc; ++argi)
+ bool preview_mode = false;
+ std::string menu_url;
+ std::string output_dir;
+
+ // Do initial option parsing. We have to do this before
+ // letting Gtk parse the arguments since we may need to spawn
+ // Xvfb first.
+ int argi = 1;
+ while (argi != argc)
{
if (std::strcmp(argv[argi], "--") == 0)
+ {
break;
- if (std::strcmp(argv[argi], "--video-std") == 0)
+ }
+ else if (std::strcmp(argv[argi], "--help") == 0)
+ {
+ print_usage(std::cout, argv[0]);
+ return EXIT_SUCCESS;
+ }
+ else if (std::strcmp(argv[argi], "--preview") == 0)
+ {
+ preview_mode = true;
+ argi += 1;
+ }
+ else if (std::strcmp(argv[argi], "--video-std") == 0)
{
if (argi + 1 == argc)
{
std::cerr << "Missing argument to --video-std\n";
+ print_usage(std::cerr, argv[0]);
return EXIT_FAILURE;
}
frame_params = lookup_frame_params(argv[argi + 1]);
- break;
+ argi += 2;
+ }
+ else
+ {
+ argi += 1;
}
}
-
- // Spawn Xvfb and set env variables so that Xlib will use it
- // Use 8 bits each for RGB components, which should translate into
- // "enough" bits for YUV components.
- FrameBuffer fb(frame_params.width, frame_params.height, 3 * 8);
- setenv("XAUTHORITY", fb.get_x_authority().c_str(), true);
- setenv("DISPLAY", fb.get_x_display().c_str(), true);
+
+ std::auto_ptr<x_frame_buffer> fb;
+ if (!preview_mode)
+ {
+ // Spawn Xvfb and set env variables so that Xlib will use it
+ // Use 8 bits each for RGB components, which should translate into
+ // "enough" bits for YUV components.
+ fb.reset(new x_frame_buffer(frame_params.width,
+ frame_params.height,
+ 3 * 8));
+ setenv("XAUTHORITY", fb->get_authority().c_str(), true);
+ setenv("DISPLAY", fb->get_display().c_str(), true);
+ }
// Initialise Gtk
Gtk::Main kit(argc, argv);
- // Check we have the right number of arguments. We can't
- // do this earlier because we need to let Gtk read and remove
- // any of the many options it understands.
- int argi = 1;
+ // Complete option parsing with Gtk's options out of the way.
+ argi = 1;
while (argi != argc)
{
- if (std::strcmp(argv[argi], "--video-std") == 0)
+ if (std::strcmp(argv[argi], "--") == 0)
{
- argi += 2;
+ argi += 1;
+ break;
}
- else if (std::strcmp(argv[argi], "--") == 0)
+ else if (std::strcmp(argv[argi], "--preview") == 0)
{
argi += 1;
- break;
+ }
+ else if (std::strcmp(argv[argi], "--video-std") == 0)
+ {
+ argi += 2;
}
else if (argv[argi][0] == '-')
{
std::cerr << "Invalid option: " << argv[argi] << "\n";
+ print_usage(std::cerr, argv[0]);
return EXIT_FAILURE;
}
else
+ {
break;
+ }
}
- if (argi != argc - 2)
+
+ // Look for a starting URL or filename and (except in preview
+ // mode) an output directory after the options.
+ if (argc - argi != (preview_mode ? 1 : 2))
{
- std::cerr << "Usage: " << argv[0]
- << (" [gtk-options] [--video-std std-name]"
- "front-page-url output-dir\n");
+ print_usage(std::cerr, argv[0]);
return EXIT_FAILURE;
}
+ if (std::strstr(argv[argi], "://"))
+ {
+ // It appears to be an absolute URL, so use it as-is.
+ menu_url = argv[argi];
+ }
+ else
+ {
+ // Assume it's a filename. Resolve it to an absolute URL.
+ std::string path(argv[argi]);
+ if (!Glib::path_is_absolute(path))
+ path = Glib::build_filename(Glib::get_current_dir(), path);
+ menu_url = Glib::filename_to_uri(path);
+ }
+ if (!preview_mode)
+ output_dir = argv[argi + 1];
// Initialise Mozilla
- BrowserWidget::init();
+ browser_widget::initialiser browser_init;
+ set_browser_preferences();
- WebDvdWindow window(frame_params, argv[argi], argv[argi + 1]);
+ // Run the browser/converter
+ webdvd_window window(frame_params, menu_url, output_dir);
Gtk::Main::run(window);
}
catch (std::exception & e)
projects / videolink.git / blobdiff