/*===========================================================================*
* tty_task *
*===========================================================================*/
int main(void)
{
/* Main routine of the terminal task. */
message tty_mess; /* buffer for all incoming messages */
int ipc_status;
int line;
int r;
register tty_t *tp;
/* SEF local startup. */
sef_local_startup();
while (TRUE) {
/* Check for and handle any events on any of the ttys. */
for (tp = FIRST_TTY; tp < END_TTY; tp++) {
if (tp->tty_events) handle_events(tp);
}
/* Get a request message. */
r= driver_receive(ANY, &tty_mess, &ipc_status);
if (r != 0)
panic("driver_receive failed with: %d", r);
/* First handle all kernel notification types that the TTY supports.
* - An alarm went off, expire all timers and handle the events.
* - A hardware interrupt also is an invitation to check for events.
* - A new kernel message is available for printing.
* - Reset the console on system shutdown.
* Then see if this message is different from a normal device driver
* request and should be handled separately. These extra functions
* do not operate on a device, in constrast to the driver requests.
*/
if (is_ipc_notify(ipc_status)) {
switch (_ENDPOINT_P(tty_mess.m_source)) {
case CLOCK:
/* run watchdogs of expired timers */
expire_timers(tty_mess.m_notify.timestamp);
break;
case HARDWARE:
/* hardware interrupt notification */
#if NR_RS_LINES > 0
/* serial I/O */
if (tty_mess.m_notify.interrupts & rs_irq_set)
rs_interrupt(&tty_mess);
#endif
/* run watchdogs of expired timers */
expire_timers(tty_mess.m_notify.timestamp);
break;
default:
/* do nothing */
break;
}
/* done, get new message */
continue;
}
switch (tty_mess.m_type) {
case TTY_FKEY_CONTROL: /* (un)register a fkey observer */
do_fkey_ctl(&tty_mess);
continue;
case TTY_INPUT_UP:
case TTY_INPUT_EVENT:
do_input(&tty_mess);
continue;
default: /* should be a driver request */
; /* do nothing; end switch */
}
if (!IS_CDEV_RQ(tty_mess.m_type)) {
chardriver_process(&tty_tab, &tty_mess, ipc_status);
continue;
}
/* Only device requests should get to this point.
* All requests have a minor device number.
*/
if (OK != chardriver_get_minor(&tty_mess, &line))
continue;
if (line == VIDEO_MINOR) {
do_video(&tty_mess, ipc_status);
continue;
}
/* Execute the requested device driver function. */
chardriver_process(&tty_tab, &tty_mess, ipc_status);
}
return 0;
}
// Aborts and returns 1 if an error is encountered.
int PackageRenderer::render_package(RenderPackage *package)
{
int audio_done = 0;
int video_done = 0;
int samples_rendered = 0;
result = 0;
this->package = package;
// printf(
// "PackageRenderer::render_package: audio s=%lld l=%lld video s=%lld l=%lld\n",
// package->audio_start,
// package->audio_end - package->audio_start,
// package->video_start,
// package->video_end - package->video_start);
// FIXME: The design that we only get EDL once does not give us neccessary flexiblity to do things the way they should be donek
default_asset->video_data = package->video_do;
default_asset->audio_data = package->audio_do;
Render::check_asset(edl, *default_asset);
create_output();
if(!asset->video_data) video_done = 1;
if(!asset->audio_data) audio_done = 1;
// Create render engine
if(!result)
{
create_engine();
//printf("PackageRenderer::render_package 5 %d\n", result);
// Main loop
while((!audio_done || !video_done) && !result)
{
int need_audio = 0, need_video = 0;
// Calculate lengths to process. Audio fragment is constant.
if(!audio_done)
{
if(audio_position + audio_read_length >= package->audio_end)
{
audio_done = 1;
audio_read_length = package->audio_end - audio_position;
}
samples_rendered = audio_read_length;
need_audio = 1;
}
//printf("PackageRenderer::render_package 6 %d\n", samples_rendered);
if(!video_done)
{
if(audio_done)
{
video_read_length = package->video_end - video_position;
// Packetize video length so progress gets updated
video_read_length = (int)MIN(asset->frame_rate, video_read_length);
video_read_length = MAX(video_read_length, 30);
}
else
// Guide video with audio
{
video_read_length = Units::to_int64(
(double)(audio_position + audio_read_length) /
asset->sample_rate *
asset->frame_rate) -
video_position;
}
// Clamp length
if(video_position + video_read_length >= package->video_end)
{
video_done = 1;
video_read_length = package->video_end - video_position;
}
// Calculate samples rendered for progress bar.
if(audio_done)
samples_rendered = Units::round((double)video_read_length /
asset->frame_rate *
asset->sample_rate);
need_video = 1;
}
//printf("PackageRenderer::render_package 1 %d %lld %lld\n", result, audio_read_length, video_read_length);
if(need_video && !result) do_video();
//printf("PackageRenderer::render_package 7 %d %d\n", result, samples_rendered);
if(need_audio && !result) do_audio();
if(!result) set_progress(samples_rendered);
if(!result && progress_cancelled()) result = 1;
// printf("PackageRenderer::render_package 10 %d %d %d %d\n",
// audio_read_length, video_read_length, samples_rendered, result);
if(result)
set_result(result);
else
result = get_result();
}
//printf("PackageRenderer::render_package 20\n");
stop_engine();
//printf("PackageRenderer::render_package 30\n");
stop_output();
//printf("PackageRenderer::render_package 40\n");
}
//printf("PackageRenderer::render_package 50\n");
close_output();
//printf("PackageRenderer::render_package 60\n");
set_result(result);
//printf("PackageRenderer::render_package 70\n");
return result;
}
