genesis-3d_engine/Engine/addons/particles/particlejob.cc

/****************************************************************************
Copyright (c) 2011-2013,WebJet Business Division,CYOU

http://www.genesis-3d.com.cn

Permission is hereby granted, free of charge, to any person obtaining a copy
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****************************************************************************/
#include "stdneb.h"
#include "particles/particlejob.h"
#include "particles/particlesystem.h"
#include "jobs/stdjob.h"

namespace Particles{

	void ParticleJobFunc(const JobFuncContext& ctx)
	{
		ParticleJobData* data = (ParticleJobData*)ctx.uniforms[0];
		ParSystemList& loopList = *(data->mUpdateList);
		for( IndexT index = data->mBeginIndex; index < data->mEndIndex; ++index )
		{
			loopList[index]->Update();
		}
	}

} // namespace Vis
__ImplementSpursJob(Particles::ParticleJobFunc);

namespace Particles
{
	__ImplementClass(Particles::ParticleJob, 'PARJ', Core::RefCounted)
		//------------------------------------------------------------------------
		ParticleJob::ParticleJob()
	{

	}
	//------------------------------------------------------------------------
	ParticleJob::~ParticleJob()
	{
		n_assert( !mData.mUpdateList ); 
		n_assert( mData.mBeginIndex == 0 );
		n_assert( mData.mEndIndex == InvalidIndex);
		n_assert( !mJobPort.isvalid() );
		n_assert( !mJob.isvalid() );
	}
	//------------------------------------------------------------------------
	void ParticleJob::Setup( ParSystemList* updateList, IndexT begin, IndexT end )
	{
		mData.mUpdateList = updateList;
		mData.mBeginIndex = begin;
		mData.mEndIndex = end;
		n_assert( mData.mEndIndex > mData.mBeginIndex ); 
	}

	//------------------------------------------------------------------------
	void 
		ParticleJob::Run()
	{
		n_assert( !mJobPort.isvalid() );
		n_assert( mData.mUpdateList != NULL );
		n_assert( mData.mBeginIndex < mData.mEndIndex );

		mJobPort = Jobs::JobPort::Create();
		mJobPort->Setup();

		// create new job           
		mJob = Jobs::Job::Create();

		// input data for job  
		// function
		Jobs::JobFuncDesc jobFunction(ParticleJobFunc);   

		Jobs::JobUniformDesc uniformData( &mData, sizeof(void*), 0 );

		Jobs::JobDataDesc inputData( &mData, sizeof(void*), sizeof(void*) );
		Jobs::JobDataDesc outputData( &mData, sizeof(void*), sizeof(void*) );

		// setup job with data
		mJob->Setup(uniformData, inputData, outputData, jobFunction);

		mJobPort->PushJob( mJob );
	}
	//------------------------------------------------------------------------
	void 
		ParticleJob::End()
	{
		mData.mUpdateList = NULL;
		mData.mBeginIndex = 0;
		mData.mEndIndex = InvalidIndex;
		mJobPort = NULL;
		mJob = NULL;
	}

}