bool Actor::video_negotiate (VisVideoDepth run_depth, bool noevent, bool forced)
{
auto output_width = m_impl->video->get_width ();
auto output_height = m_impl->video->get_height ();
auto output_depth = m_impl->video->get_depth ();
// Ask actor for preferred rendering dimensions
int run_width = output_width;
int run_height = output_height;
m_impl->get_actor_plugin ()->requisition (m_impl->plugin, &run_width, &run_height);
// Check to make sure requested run depth is supported. If not, pick the highest.
auto supported_depths = get_supported_depths ();
m_impl->run_depth = forced ? run_depth : visual_video_depth_get_highest_nogl (supported_depths);
if (!visual_video_depth_is_supported (supported_depths, m_impl->run_depth)) {
m_impl->run_depth = visual_video_depth_get_highest_nogl (supported_depths);
}
// Configure proxy videos to convert rendering
m_impl->to_scale.reset ();
m_impl->to_convert.reset ();
visual_log (VISUAL_LOG_DEBUG, "Setting up any necessary video conversions..");
if (output_depth != VISUAL_VIDEO_DEPTH_GL) {
// Configure any necessary depth conversion
if (m_impl->run_depth != output_depth) {
visual_log (VISUAL_LOG_DEBUG, "Setting up depth conversion: %s -> %s",
visual_video_depth_name (m_impl->run_depth),
visual_video_depth_name (output_depth));
m_impl->to_convert = Video::create (output_width, output_height, m_impl->run_depth);
}
// Configure any necessary scaling
if (run_width != output_width || run_height != output_height) {
visual_log (VISUAL_LOG_DEBUG, "Setting up scaling: (%dx%d) -> (%dx%d)",
run_width, run_height, output_width, output_height);
m_impl->to_scale = Video::create (run_width, run_height, output_depth);
}
} else {
visual_log (VISUAL_LOG_DEBUG, "Conversions skipped in OpenGL rendering mode");
}
// FIXME: This should be moved into the if block above. It's out
// here because plugins depend on this to receive information
// about initial dimensions
if (!noevent) {
visual_event_queue_add (visual_plugin_get_event_queue (m_impl->plugin),
visual_event_new_resize (run_width, run_height));
}
return true;
}
int main (int argc, char **argv)
{
try {
// print warm welcome
std::cerr << visual_truncate_path (argv[0], 1) << " - "
<< PACKAGE_STRING
<< " (" << LV_REVISION << ") commandline tool - "
<< PACKAGE_URL << "\n";
// setup signal handlers
setup_signal_handlers ();
// default loglevel
visual_log_set_verbosity (VISUAL_LOG_ERROR);
// initialize LV
Libvisual main {argc, argv};
// parse commandline arguments
int parse_result = parse_args (argc, argv);
if (parse_result < 0) {
throw std::runtime_error ("Failed to parse arguments");
}
if (parse_result > 0) {
return EXIT_SUCCESS;
}
// Set system-wide random seed
if (have_seed) {
LV::System::instance()->set_rng_seed (seed);
}
// create new VisBin for video output
LV::Bin bin;
bin.set_supported_depth(VISUAL_VIDEO_DEPTH_ALL);
bin.use_morph(false);
// Let the bin manage plugins. There's a bug otherwise.
if (!bin.connect(actor_name, input_name)) {
throw std::runtime_error ("Failed to start pipeline with actor '" + actor_name + "' and input '" + input_name + "'");
}
auto actor = bin.get_actor();
// Select output colour depth
VisVideoDepth depth;
int depthflag = actor->get_supported_depths ();
// Pick the best display depth directly supported by non GL actor
if(depthflag != VISUAL_VIDEO_DEPTH_GL)
{
if (color_depth == 0)
{
depth = visual_video_depth_get_highest_nogl (depthflag);
}
// Pick user chosen colordepth
else
{
depth = visual_video_depth_from_bpp (color_depth);
}
}
/* GL actor */
else
{
depth = visual_video_depth_get_highest (depthflag);
}
bin.set_depth (depth);
auto vidoptions = actor->get_video_attribute_options ();
// initialize display
Display display (driver_name);
// create display
auto video = display.create(depth, vidoptions, width, height, true);
if(!video) {
throw std::runtime_error("Failed to setup display for rendering");
}
// Set the display title
display.set_title(_("lv-tool"));
// put it all together
bin.set_video(video);
bin.realize();
bin.sync(false);
bin.depth_changed();
bin.set_morph(morph_name);
// get a queue to handle events
LV::EventQueue localqueue;
// rendering statistics
uint64_t frames_drawn = 0;
// frame rate control state
uint64_t const frame_period_us = frame_rate > 0 ? VISUAL_USECS_PER_SEC / frame_rate : 0;
LV::Time last_frame_time;
bool draw_frame = true;
// main loop
bool running = true;
//bool visible = true;
while (running)
{
// Check if process termination was signaled
if (terminate_process) {
std::cerr << "Received signal to terminate process, exiting..\n";
return EXIT_SUCCESS;
}
// Control frame rate
if (frame_rate > 0) {
if (frames_drawn > 0) {
draw_frame = (LV::Time::now () - last_frame_time).to_usecs () >= frame_period_us;
}
}
if (draw_frame) {
DisplayLock lock {display};
// Draw audio data and render
bin.run();
// Display rendering
display.update_all ();
// Record frame time
last_frame_time = LV::Time::now ();
// All frames rendered?
frames_drawn++;
if (frame_count > 0 && frames_drawn >= frame_count) {
break;
}
// switch actor?
if (actor_switch_after_frames > 0 &&
frames_drawn >= actor_switch_after_frames + actor_switch_framecount)
{
actor_switch_framecount += actor_switch_after_frames;
actor_name = cycle_actor_name (actor_name, CycleDir::NEXT);
std::cerr << "Switching to actor '" << actor_name << "'...\n";
bin.switch_actor (actor_name);
}
}
LV::Event ev;
// Handle all events
display.drain_events(localqueue);
auto pluginqueue = visual_plugin_get_event_queue (bin.get_actor()->get_plugin ());
while (localqueue.poll(ev))
{
if(ev.type != VISUAL_EVENT_RESIZE)
pluginqueue->add (ev);
switch (ev.type)
{
case VISUAL_EVENT_PARAM:
{
break;
}
case VISUAL_EVENT_RESIZE:
{
DisplayLock lock {display};
width = ev.event.resize.width;
height = ev.event.resize.height;
video = display.create(depth, vidoptions, width, height, true);
display.set_title(_("lv-tool"));
bin.set_video (video);
bin.sync(false);
break;
}
case VISUAL_EVENT_MOUSEMOTION:
{
break;
}
case VISUAL_EVENT_MOUSEBUTTONDOWN:
{
// switch to next actor
actor_name = cycle_actor_name (actor_name, CycleDir::NEXT);
std::cerr << "Switching to actor '" << actor_name << "'...\n";
bin.switch_actor (actor_name);
break;
}
case VISUAL_EVENT_MOUSEBUTTONUP:
{
break;
}
case VISUAL_EVENT_KEYDOWN:
{
switch(ev.event.keyboard.keysym.sym)
{
case VKEY_ESCAPE:
{
running = false;
break;
}
case VKEY_TAB:
{
break;
}
default:
break;
}
break;
}
case VISUAL_EVENT_KEYUP:
{
break;
}
case VISUAL_EVENT_QUIT:
{
running = false;
break;
}
case VISUAL_EVENT_VISIBILITY:
{
//visible = ev.event.visibility.is_visible;
break;
}
default:
{
break;
}
}
}
if (bin.depth_changed())
{
DisplayLock lock {display};
int depthflag = bin.get_depth();
VisVideoDepth depth = visual_video_depth_get_highest(depthflag);
display.create(depth, vidoptions, width, height, true);
video = display.get_video();
bin.set_video(video);
bin.sync(true);
}
}
return EXIT_SUCCESS;
}
catch (std::exception& error) {
std::cerr << error.what () << std::endl;
return EXIT_FAILURE;
}
}