Example #1
0
void GfxImageLoaderEngine::run()
{
    lock.lock();

    while(true) {
        if(ops.isEmpty()) {
            wait.wait(&lock);
        } else {
            Op op = *ops.begin();
            lock.unlock();

            runOp(op);

            lock.lock();
        }
    }
}
Example #2
0
int QDeclarativeTimeLinePrivate::advance(int t)
{
    int pauseTime = -1;

    // XXX - surely there is a more efficient way?
    do {
        pauseTime = -1;
        // Minimal advance time
        int advanceTime = t;
        for (Ops::Iterator iter = ops.begin(); iter != ops.end(); ++iter) {
            TimeLine &tl = *iter;
            Op &op = tl.ops.first();
            int length = op.length - tl.consumedOpLength;
                
            if (length < advanceTime) {
                advanceTime = length;
                if (advanceTime == 0)
                    break;
            }
        }
        t -= advanceTime;

        // Process until then.  A zero length advance time will only process 
        // sets.
        QList<QPair<int, Update> > updates;

        for (Ops::Iterator iter = ops.begin(); iter != ops.end(); ) {
            QDeclarativeTimeLineValue *v = static_cast<QDeclarativeTimeLineValue *>(iter.key());
            TimeLine &tl = *iter;
            Q_ASSERT(!tl.ops.isEmpty());

            do {
                Op &op = tl.ops.first();
                if (advanceTime == 0 && op.length != 0)
                    continue;

                if (tl.consumedOpLength == 0 && 
                   op.type != Op::Pause && 
                   op.type != Op::Execute)
                    tl.base = v->value();

                if ((tl.consumedOpLength + advanceTime) == op.length) {
                    if (op.type == Op::Execute) {
                        updates << qMakePair(op.order, Update(op.event));
                    } else {
                        bool changed = false;
                        qreal val = value(op, op.length, tl.base, &changed);
                        if (changed)
                            updates << qMakePair(op.order, Update(v, val));
                    }
                    tl.length -= qMin(advanceTime, tl.length);
                    tl.consumedOpLength = 0;
                    tl.ops.removeFirst();
                } else {
                    tl.consumedOpLength += advanceTime;
                    bool changed = false;
                    qreal val = value(op, tl.consumedOpLength, tl.base, &changed);
                    if (changed)
                        updates << qMakePair(op.order, Update(v, val));
                    tl.length -= qMin(advanceTime, tl.length);
                    break;
                }

            } while(!tl.ops.isEmpty() && advanceTime == 0 && tl.ops.first().length == 0);


            if (tl.ops.isEmpty()) {
                iter = ops.erase(iter);
                v->_t = 0;
            } else {
                if (tl.ops.first().type == Op::Pause && pauseTime != 0) {
                    int opPauseTime = tl.ops.first().length - tl.consumedOpLength;
                    if (pauseTime == -1 || opPauseTime < pauseTime)
                        pauseTime = opPauseTime;
                } else {
                    pauseTime = 0;
                }
                ++iter;
            }
        }

        length -= qMin(length, advanceTime);
        syncPoint -= advanceTime;

        qSort(updates.begin(), updates.end());
        updateQueue = &updates;
        for (int ii = 0; ii < updates.count(); ++ii) {
            const Update &v = updates.at(ii).second;
            if (v.g) {
                v.g->setValue(v.v);
            } else {
                v.e.d0(v.e.d1);
            }
        }
        updateQueue = 0;
    } while(t);

    return pauseTime;
}