unsigned short CPixelVisibilitySystem::FindQueryForView( CPixelVisSet *pSet, int viewID )
{
unsigned short node = m_queryList.Head( pSet->queryList );
while ( node != m_queryList.InvalidIndex() )
{
if ( m_queryList[node].IsForView( viewID ) )
return node;
node = m_queryList.Next( node );
}
return m_queryList.InvalidIndex();
}
void CPixelVisibilitySystem::LevelShutdownPostEntity()
{
m_pProxyMaterial->DecrementReferenceCount();
m_pProxyMaterial = NULL;
m_pDrawMaterial->DecrementReferenceCount();
m_pDrawMaterial = NULL;
DeleteUnusedSets(true);
m_setList.Purge();
m_queryList.Purge();
m_freeQueriesList = m_queryList.InvalidIndex();
m_activeSetsList = m_setList.InvalidIndex();
m_freeSetsList = m_setList.InvalidIndex();
}
void CPixelVisibilitySystem::EndView()
{
if ( !PixelVisibility_IsAvailable() && CurrentViewID() >= 0 )
return;
if ( m_setList.Head( m_activeSetsList ) == m_setList.InvalidIndex() )
return;
CMatRenderContextPtr pRenderContext( materials );
IMaterial *pProxy = m_drawQueries ? m_pDrawMaterial : m_pProxyMaterial;
pRenderContext->Bind( pProxy );
// BUGBUG: If you draw both queries, the measure query fails for some reason.
if ( r_pixelvisibility_partial.GetBool() && !m_drawQueries )
{
pRenderContext->DepthRange( 0.0f, 0.01f );
unsigned short node = m_setList.Head( m_activeSetsList );
while( node != m_setList.InvalidIndex() )
{
CPixelVisSet *pSet = &m_setList[node];
unsigned short queryNode = FindQueryForView( pSet, CurrentViewID() );
if ( queryNode != m_queryList.InvalidIndex() )
{
m_queryList[queryNode].IssueCountingQuery( pRenderContext, pSet->proxySize, pSet->proxyAspect, pProxy, pSet->sizeIsScreenSpace );
}
node = m_setList.Next( node );
}
pRenderContext->DepthRange( 0.0f, 1.0f );
}
{
unsigned short node = m_setList.Head( m_activeSetsList );
while( node != m_setList.InvalidIndex() )
{
CPixelVisSet *pSet = &m_setList[node];
unsigned short queryNode = FindQueryForView( pSet, CurrentViewID() );
if ( queryNode != m_queryList.InvalidIndex() )
{
m_queryList[queryNode].IssueQuery( pRenderContext, pSet->proxySize, pSet->proxyAspect, pProxy, pSet->sizeIsScreenSpace );
}
node = m_setList.Next( node );
}
}
}
unsigned short CPixelVisibilitySystem::FindOrCreateQueryForView( CPixelVisSet *pSet, int viewID )
{
unsigned short node = FindQueryForView( pSet, viewID );
if ( node != m_queryList.InvalidIndex() )
return node;
node = AllocQuery();
m_queryList.LinkToHead( pSet->queryList, node );
m_queryList[node].SetView( viewID );
return node;
}
void CPixelVisibilitySystem::DeleteUnusedSets( bool bDeleteAll )
{
unsigned short node = m_setList.Head( m_activeSetsList );
while ( node != m_setList.InvalidIndex() )
{
unsigned short next = m_setList.Next( node );
CPixelVisSet *pSet = &m_setList[node];
if ( bDeleteAll || !m_setList[node].IsActive() )
{
DeleteUnusedQueries( pSet, true );
}
else
{
DeleteUnusedQueries( pSet, false );
}
if ( m_queryList.Head(pSet->queryList) == m_queryList.InvalidIndex() )
{
FreeSet( node );
}
node = next;
}
}
unsigned short CPixelVisibilitySystem::AllocQuery()
{
unsigned short node = m_queryList.Head(m_freeQueriesList);
if ( node != m_queryList.InvalidIndex() )
{
m_queryList.Unlink( m_freeQueriesList, node );
}
else
{
node = m_queryList.Alloc();
}
return node;
}
void CPixelVisibilitySystem::DeleteUnusedQueries( CPixelVisSet *pSet, bool bDeleteAll )
{
unsigned short node = m_queryList.Head( pSet->queryList );
while ( node != m_queryList.InvalidIndex() )
{
unsigned short next = m_queryList.Next( node );
if ( bDeleteAll || !m_queryList[node].IsActive() )
{
m_queryList.Unlink( pSet->queryList, node);
m_queryList.LinkToHead( m_freeQueriesList, node );
}
node = next;
}
}
unsigned short CPixelVisibilitySystem::AllocSet()
{
unsigned short node = m_setList.Head(m_freeSetsList);
if ( node != m_setList.InvalidIndex() )
{
m_setList.Unlink( m_freeSetsList, node );
}
else
{
node = m_setList.Alloc();
m_setList[node].queryList = m_queryList.CreateList();
}
m_setList.LinkToHead( m_activeSetsList, node );
return node;
}