paysages : Preview rendering is balanced when two previews are visible.

git-svn-id: https://subversion.assembla.com/svn/thunderk/paysages@366 b1fd45b6-86a6-48da-8261-f70d1f35bdcc
This commit is contained in:
Michaël Lemaire 2012-06-27 13:05:57 +00:00 committed by ThunderK
parent 1539c75d6d
commit 474e4284d4
3 changed files with 22 additions and 4 deletions

1
TODO
View file

@ -28,7 +28,6 @@ Technology Preview 2 :
- Fix "RGB parameters out of range" (and segfault) on preview while moving render params fast in render tab.
=> May need to change the updateData system.
=> Previews need to be paused while updating data.
- When there are two previews in the same view, balance rendering between the two.
- Lock some previews together (eg: terrain height and colored preview).
- Find a new licence.

View file

@ -25,6 +25,11 @@ public:
_alive = true;
}
inline BasePreview* preview()
{
return _preview;
}
inline bool isOnFront()
{
return _preview->isVisible() && _preview->window()->isActiveWindow();
@ -132,6 +137,7 @@ PreviewDrawingManager::PreviewDrawingManager()
{
_thread_count = 1;
}
_lastRendered = NULL;
}
void PreviewDrawingManager::startThreads()
@ -236,12 +242,24 @@ void PreviewDrawingManager::performOneThreadJob()
_lock.lock();
if (!_updateQueue.isEmpty())
{
chunk = _updateQueue.takeFirst();
for (int i = _updateQueue.size(); i > 0; i--)
{
chunk = _updateQueue.takeFirst();
if (chunk && i > 1 && chunk->preview() == _lastRendered)
{
_updateQueue.append(chunk);
}
else
{
break;
}
}
}
_lock.unlock();
if (chunk)
{
_lastRendered = chunk->preview();
chunk->render();
}
}

View file

@ -136,6 +136,7 @@ private:
QVector<PreviewDrawingThread*> _threads;
QVector<PreviewChunk*> _chunks;
QList<PreviewChunk*> _updateQueue;
BasePreview* _lastRendered;
QMutex _lock;
};