void IconTask::run()
{
assert(NULL != ctxp);
IconTaskCtx ctx = *ctxp;
assert(ctx.nlabels > 0);
assert(ctx.nlabels == ctx.colors.size());
assert(ctx.colors.size() == ctx.nlabels);
assert(ctx.icons.size() == 0); // we do the allocation
assert(IconSizeMin <= ctx.iconSize.width() &&
ctx.iconSize.width() <= IconSizeMax);
assert(IconSizeMin <= ctx.iconSize.height() &&
ctx.iconSize.height() <= IconSizeMax);
// init result vector
ctx.icons = QVector<QImage>(ctx.nlabels);
tbb::auto_partitioner partitioner;
if (abortFlag) {
return;
}
tbb::parallel_for(tbb::blocked_range<short>(0, ctx.nlabels),
ComputeIconMasks(ctx), partitioner, tbbTaskGroupContext);
if (!abortFlag) {
emit labelIconsComputed(ctx.icons);
}
//GGDBGM("return" << endl);
}
void LabelingModel::processLabelIconsComputed(const QVector<QImage> &icons)
{
// The reference argument icons is valid, since the icon task will be
// deleted only after this function leaves its scope.
//GGDBGM("IconTask finished successfully" << endl);
// store the result and emit
this->icons = icons;
emit labelIconsComputed(icons);
discardIconTask();
}