preload next frame before ticking over

This commit is contained in:
in1tiate 2021-08-11 09:20:00 -05:00
parent 579456fbd7
commit ce94cd2d1e
2 changed files with 18 additions and 8 deletions

View File

@ -7,6 +7,7 @@
#include <QLabel>
#include <QTimer>
#include <QBitmap>
#include <QtConcurrent/QtConcurrentRun>
class AOApplication;
class VPath;
@ -139,6 +140,9 @@ protected:
// Center the QLabel in the viewport based on the dimensions of f_pixmap
void center_pixmap(QPixmap f_pixmap);
// Populate the frame and delay vectors. Done asynchronously.
void load_next_frame();
signals:
void done();

View File

@ -532,7 +532,11 @@ void CharLayer::movie_ticker()
void AOLayer::movie_ticker()
{
++frame;
if (frame >= max_frames) {
QFuture<void> future;
if (frame >= movie_frames.size() && frame < max_frames) { // need to load the image
future = QtConcurrent::run(this, &AOLayer::load_next_frame);
}
else if (frame >= max_frames) {
if (play_once) {
if (cull_image)
this->stop();
@ -544,19 +548,21 @@ void AOLayer::movie_ticker()
else
frame = 0;
}
// qint64 difference = elapsed - movie_delays[frame];
if (frame >= movie_frames.size()) {
movie_frames.append(this->get_pixmap(m_reader.read()));
movie_delays.append(m_reader.nextImageDelay());
}
#ifdef DEBUG_MOVIE
qDebug() << frame << movie_delays[frame]
<< "actual time taken from last frame:" << actual_time.restart();
#endif
future.waitForFinished(); // don't set the frame before we definitely have it in memory
this->set_frame(movie_frames[frame]);
ticker->setInterval(this->get_frame_delay(movie_delays[frame]));
if (frame + 1 >= movie_frames.size() && frame + 1 < max_frames) { // load the next frame before we tick again
future = QtConcurrent::run(this, &AOLayer::load_next_frame);
}
}
void AOLayer::load_next_frame() {
movie_frames.append(this->get_pixmap(m_reader.read()));
movie_delays.append(m_reader.nextImageDelay());
}
void CharLayer::preanim_done()