/// <summary>
/// Renders all tiles in a given scale
/// </summary>
/// <param name="scaleindex">The scale to render</param>
/// <param name="group">The name of the baselayer group</param>
public void RenderScale(int scaleindex, string group)
{
m_parent.InvokeBeginRendering(this, group, scaleindex);
if (!m_parent.Cancel)
{
int rows = (int)m_dimensions[scaleindex][0];
int cols = (int)m_dimensions[scaleindex][1];
int rowTileOffset = (int)m_dimensions[scaleindex][2];
int colTileOffset = (int)m_dimensions[scaleindex][3];
//If the MaxExtents are different from the actual bounds, we need a start offset offset
using (var settings = new RenderThreads(this, m_parent, m_scaleindexmap[scaleindex], group, m_tileSetResourceID, rows, cols, rowTileOffset, colTileOffset, m_parent.Config.RandomizeTileSequence))
{
settings.RunAndWait();
if (settings.TileSet.Count != 0 && !m_parent.Cancel)
{
throw new Exception(Strings.TS_ThreadFailureError);
}
}
}
m_parent.InvokeFinishRendering(this, group, scaleindex);
}
public void RunAndWait()
{
ThreadPool.QueueUserWorkItem(QueueFiller);
for (int i = 0; i < _parent.Config.ThreadCount; i++)
{
ThreadPool.QueueUserWorkItem(ThreadRender);
}
bool completed = false;
while (!completed)
{
EventPassing eventToRaise = null;
while (true)
{
lock (_syncLock)
{
if (_raiseEvents.Count > 0)
{
eventToRaise = _raiseEvents.Dequeue();
}
}
if (eventToRaise == null)
{
//No more events
break;
}
else
{
switch (eventToRaise.Type)
{
case EventPassing.EventType.Begin:
_parent.InvokeBeginRendering(
_invoker,
_group,
_scale,
eventToRaise.Row,
eventToRaise.Col);
break;
case EventPassing.EventType.Finish:
_parent.InvokeFinishRendering(
_invoker,
_group,
_scale,
eventToRaise.Row,
eventToRaise.Col);
break;
case EventPassing.EventType.Error:
eventToRaise.Result = _parent.InvokeError(
_invoker,
_group,
_scale,
eventToRaise.Row,
eventToRaise.Col,
eventToRaise.Exception);
break;
default:
//Not translated, because it is an internal error that should never happen
throw new Exception("Bad event type"); //NOXLATE
}
eventToRaise.Event.Set();
eventToRaise = null;
}
}
lock (_syncLock)
{
if (_completeFlag == 0 && _raiseEvents.Count == 0)
{
completed = true;
}
}
if (!completed)
{
_event.WaitOne(5 * 1000, true);
}
}
}