// internal helpers
//-------------------------------------------------
// video_exit - close down the video system
//-------------------------------------------------
void exit(running_machine machine_)
{
// stop recording any movie
m_movie_recordings.clear();
// free the snapshot target
machine().render().target_free(m_snap_target);
m_snap_bitmap.reset();
// print a final result if we have at least 2 seconds' worth of data
if (!emulator_info.standalone() && m_overall_emutime.seconds() >= 1)
{
osd_ticks_t tps = m_osdcore.osd_ticks_per_second();
double final_real_time = (double)m_overall_real_seconds + (double)m_overall_real_ticks / (double)tps;
double final_emu_time = m_overall_emutime.as_double();
osd_printf_info("Average speed: {0}%% ({1} seconds)\n", 100 * final_emu_time / final_real_time, (m_overall_emutime + new attotime(0, ATTOSECONDS_PER_SECOND / 2)).seconds()); // %.2f%% (%d seconds)\n
}
}
//-------------------------------------------------
// recompute_speed - recompute the current
// overall speed; we assume this is called only
// if we did not skip a frame
//-------------------------------------------------
void recompute_speed(attotime emutime)
{
// if we don't have a starting time yet, or if we're paused, reset our starting point
if (m_speed_last_realtime == 0 || machine().paused())
{
m_speed_last_realtime = m_osdcore.osd_ticks();
m_speed_last_emutime = emutime;
}
// if it has been more than the update interval, update the time
attotime delta_emutime = emutime - m_speed_last_emutime;
if (delta_emutime > new attotime(0, ATTOSECONDS_PER_SPEED_UPDATE))
{
// convert from ticks to attoseconds
osd_ticks_t realtime = m_osdcore.osd_ticks();
osd_ticks_t delta_realtime = realtime - m_speed_last_realtime;
osd_ticks_t tps = m_osdcore.osd_ticks_per_second();
m_speed_percent = delta_emutime.as_double() * (double)tps / (double)delta_realtime;
// remember the last times
m_speed_last_realtime = realtime;
m_speed_last_emutime = emutime;
// if we're throttled, this time period counts for overall speed; otherwise, we reset the counter
if (!m_fastforward)
{
m_overall_valid_counter++;
}
else
{
m_overall_valid_counter = 0;
}
// if we've had at least 4 consecutive valid periods, accumulate stats
if (m_overall_valid_counter >= 4)
{
m_overall_real_ticks += delta_realtime;
while (m_overall_real_ticks >= tps)
{
m_overall_real_ticks -= tps;
m_overall_real_seconds++;
}
m_overall_emutime += delta_emutime;
}
}
// if we're past the "time-to-execute" requested, signal an exit
if (m_seconds_to_run != 0 && emutime.seconds() >= m_seconds_to_run)
{
// create a final screenshot
emu_file file = new emu_file(machine().options().snapshot_directory(), OPEN_FLAG_WRITE | OPEN_FLAG_CREATE | OPEN_FLAG_CREATE_PATHS);
std.error_condition filerr = open_next(file, "png");
if (!filerr)
{
save_snapshot(null, file);
}
file.close();
//printf("Scheduled exit at %f\n", emutime.as_double());
// schedule our demise
machine().schedule_exit();
}
}