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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose : Singleton manager for color correction on the client
//
// $NoKeywords: $
//===========================================================================//
#include "cbase.h"
#include "tier0/vprof.h"
#include "colorcorrectionmgr.h"
//------------------------------------------------------------------------------
// Singleton access
//------------------------------------------------------------------------------
static CColorCorrectionMgr s_ColorCorrectionMgr;
CColorCorrectionMgr *g_pColorCorrectionMgr = &s_ColorCorrectionMgr;
//------------------------------------------------------------------------------
// Constructor
//------------------------------------------------------------------------------
CColorCorrectionMgr::CColorCorrectionMgr()
{
m_nActiveWeightCount = 0;
}
//------------------------------------------------------------------------------
// Creates, destroys color corrections
//------------------------------------------------------------------------------
ClientCCHandle_t CColorCorrectionMgr::AddColorCorrection( const char *pName, const char *pFileName )
{
if ( !pFileName )
{
pFileName = pName;
}
CMatRenderContextPtr pRenderContext( g_pMaterialSystem );
ColorCorrectionHandle_t ccHandle = pRenderContext->AddLookup( pName );
if ( ccHandle )
{
pRenderContext->LockLookup( ccHandle );
pRenderContext->LoadLookup( ccHandle, pFileName );
pRenderContext->UnlockLookup( ccHandle );
}
else
{
Warning("Cannot find color correction lookup file: '%s'\n", pFileName );
}
return (ClientCCHandle_t)ccHandle;
}
void CColorCorrectionMgr::RemoveColorCorrection( ClientCCHandle_t h )
{
if ( h != INVALID_CLIENT_CCHANDLE )
{
CMatRenderContextPtr pRenderContext( g_pMaterialSystem );
ColorCorrectionHandle_t ccHandle = (ColorCorrectionHandle_t)h;
pRenderContext->RemoveLookup( ccHandle );
}
}
//------------------------------------------------------------------------------
// Modify color correction weights
//------------------------------------------------------------------------------
void CColorCorrectionMgr::SetColorCorrectionWeight( ClientCCHandle_t h, float flWeight )
{
if ( h != INVALID_CLIENT_CCHANDLE )
{
CMatRenderContextPtr pRenderContext( g_pMaterialSystem );
ColorCorrectionHandle_t ccHandle = (ColorCorrectionHandle_t)h;
pRenderContext->SetLookupWeight( ccHandle, flWeight );
// FIXME: NOTE! This doesn't work if the same handle has
// its weight set twice with no intervening calls to ResetColorCorrectionWeights
// which, at the moment, is true
if ( flWeight != 0.0f )
{
++m_nActiveWeightCount;
}
}
}
void CColorCorrectionMgr::ResetColorCorrectionWeights()
{
VPROF_("ResetColorCorrectionWeights", 2, VPROF_BUDGETGROUP_OTHER_UNACCOUNTED, false, 0);
// FIXME: Where should I put this? It needs to happen prior to SimulateEntities()
// which is where the client thinks for c_colorcorrection + c_colorcorrectionvolumes
// update the color correction weights.
CMatRenderContextPtr pRenderContext( g_pMaterialSystem );
pRenderContext->ResetLookupWeights();
m_nActiveWeightCount = 0;
}
void CColorCorrectionMgr::SetResetable( ClientCCHandle_t h, bool bResetable )
{
// NOTE: Setting stuff to be not resettable doesn't work when in queued mode
// because the logic that sets m_nActiveWeightCount to 0 in ResetColorCorrectionWeights
// is no longer valid when stuff is not resettable.
Assert( bResetable || !g_pMaterialSystem->GetThreadMode() == MATERIAL_SINGLE_THREADED );
if ( h != INVALID_CLIENT_CCHANDLE )
{
CMatRenderContextPtr pRenderContext( g_pMaterialSystem );
ColorCorrectionHandle_t ccHandle = (ColorCorrectionHandle_t)h;
pRenderContext->SetResetable( ccHandle, bResetable );
}
}
//------------------------------------------------------------------------------
// Is color correction active?
//------------------------------------------------------------------------------
bool CColorCorrectionMgr::HasNonZeroColorCorrectionWeights() const
{
return ( m_nActiveWeightCount != 0 );
}
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