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/*******************************************************************************
* boundingtask.cpp
*
* ---------------------------------------------------------------------------
* Persistence of Vision Ray Tracer ('POV-Ray') version 3.7.
* Copyright 1991-2013 Persistence of Vision Raytracer Pty. Ltd.
*
* POV-Ray is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* POV-Ray is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
* ---------------------------------------------------------------------------
* POV-Ray is based on the popular DKB raytracer version 2.12.
* DKBTrace was originally written by David K. Buck.
* DKBTrace Ver 2.0-2.12 were written by David K. Buck & Aaron A. Collins.
* ---------------------------------------------------------------------------
* $File: //depot/public/povray/3.x/source/backend/bounding/boundingtask.cpp $
* $Revision: #1 $
* $Change: 6069 $
* $DateTime: 2013/11/06 11:59:40 $
* $Author: chrisc $
*******************************************************************************/
#include <set>
#include <boost/thread.hpp>
#include <boost/bind.hpp>
// frame.h must always be the first POV file included (pulls in platform config)
#include "backend/frame.h"
#include "backend/math/vector.h"
#include "backend/math/matrices.h"
#include "backend/scene/objects.h"
#include "backend/support/bsptree.h"
#include "backend/bounding/boundingtask.h"
#include "backend/shape/cones.h"
#include "backend/texture/texture.h"
#include "backend/texture/pigment.h"
// this must be the last file included
#include "base/povdebug.h"
namespace pov
{
class SceneObjects : public BSPTree::Objects
{
public:
vector<ObjectPtr> infinite;
vector<ObjectPtr> finite;
unsigned int numLights;
SceneObjects(vector<ObjectPtr>& objects)
{
numLights = 0;
for(vector<ObjectPtr>::iterator i(objects.begin()); i != objects.end(); i++)
{
if(Test_Flag((*i), INFINITE_FLAG))
{
infinite.push_back(*i);
if (((*i)->Type & LIGHT_SOURCE_OBJECT) != 0)
numLights++;
}
else
finite.push_back(*i);
}
}
virtual ~SceneObjects()
{
// nothing to do
}
virtual unsigned int size() const
{
return finite.size();
}
virtual float GetMin(unsigned int axis, unsigned int i) const
{
return finite[i]->BBox.lowerleft[axis];
}
virtual float GetMax(unsigned int axis, unsigned int i) const
{
return (finite[i]->BBox.lowerleft[axis] + finite[i]->BBox.length[axis]);
}
};
class BSPProgress : public BSPTree::Progress
{
public:
BSPProgress(RenderBackend::SceneId sid, POVMSAddress addr) :
sceneId(sid),
frontendAddress(addr),
lastProgressTime(0)
{
}
virtual void operator()(unsigned int nodes) const
{
if((timer.ElapsedRealTime() - lastProgressTime) > 1000) // update progress at most every second
{
POVMS_Object obj(kPOVObjectClass_BoundingProgress);
obj.SetLong(kPOVAttrib_RealTime, timer.ElapsedRealTime());
obj.SetLong(kPOVAttrib_CurrentNodeCount, nodes);
RenderBackend::SendSceneOutput(sceneId, frontendAddress, kPOVMsgIdent_Progress, obj);
Task::CurrentTaskCooperate();
lastProgressTime = timer.ElapsedRealTime();
}
}
private:
RenderBackend::SceneId sceneId;
POVMSAddress frontendAddress;
Timer timer;
mutable POV_LONG lastProgressTime;
BSPProgress();
};
BoundingTask::BoundingTask(shared_ptr<SceneData> sd, unsigned int bt) :
Task(new SceneThreadData(sd), boost::bind(&BoundingTask::SendFatalError, this, _1)),
sceneData(sd),
boundingThreshold(bt)
{
}
BoundingTask::~BoundingTask()
{
}
void BoundingTask::AppendObject(ObjectPtr p)
{
sceneData->objects.push_back(p);
}
void BoundingTask::Run()
{
if((sceneData->objects.size() < boundingThreshold) || (sceneData->boundingMethod == 0))
{
SceneObjects objects(sceneData->objects);
sceneData->boundingMethod = 0;
sceneData->numberOfFiniteObjects = objects.finite.size();
sceneData->numberOfInfiniteObjects = objects.infinite.size() - objects.numLights;
return;
}
switch(sceneData->boundingMethod)
{
case 2:
{
// new BSP tree code
SceneObjects objects(sceneData->objects);
BSPProgress progress(sceneData->sceneId, sceneData->frontendAddress);
sceneData->objects.clear();
sceneData->objects.insert(sceneData->objects.end(), objects.finite.begin(), objects.finite.end());
sceneData->objects.insert(sceneData->objects.end(), objects.infinite.begin(), objects.infinite.end());
sceneData->numberOfFiniteObjects = objects.finite.size();
sceneData->numberOfInfiniteObjects = objects.infinite.size() - objects.numLights;
sceneData->tree = new BSPTree(sceneData->bspMaxDepth, sceneData->bspObjectIsectCost, sceneData->bspBaseAccessCost, sceneData->bspChildAccessCost, sceneData->bspMissChance);
sceneData->tree->build(progress, objects,
sceneData->nodes, sceneData->splitNodes, sceneData->objectNodes, sceneData->emptyNodes,
sceneData->maxObjects, sceneData->averageObjects, sceneData->maxDepth, sceneData->averageDepth,
sceneData->aborts, sceneData->averageAborts, sceneData->averageAbortObjects, sceneData->inputFile);
break;
}
case 1:
{
// old bounding box code
unsigned int numberOfLightSources;
Build_Bounding_Slabs(&(sceneData->boundingSlabs), sceneData->objects, sceneData->numberOfFiniteObjects,
sceneData->numberOfInfiniteObjects, numberOfLightSources);
break;
}
}
}
void BoundingTask::Stopped()
{
}
void BoundingTask::Finish()
{
GetSceneDataPtr()->timeType = SceneThreadData::kBoundingTime;
GetSceneDataPtr()->realTime = ConsumedRealTime();
GetSceneDataPtr()->cpuTime = ConsumedCPUTime();
}
void BoundingTask::SendFatalError(Exception& e)
{
// if the front-end has been told about this exception already, we don't tell it again
if (e.frontendnotified(true))
return;
POVMS_Message msg(kPOVObjectClass_ControlData, kPOVMsgClass_SceneOutput, kPOVMsgIdent_Error);
msg.SetString(kPOVAttrib_EnglishText, e.what());
msg.SetInt(kPOVAttrib_Error, 0);
msg.SetInt(kPOVAttrib_SceneId, sceneData->sceneId);
msg.SetSourceAddress(sceneData->backendAddress);
msg.SetDestinationAddress(sceneData->frontendAddress);
POVMS_SendMessage(msg);
}
}
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