CWE-ou-minkata/Sources/Plasma/PubUtilLib/plSurface/plLayerShadowBase.cpp

/*==LICENSE==*

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*==LICENSE==*/

#include "hsTypes.h"
#include "plLayerShadowBase.h"

///////////////////////////////////////////////////////////////////////////
plLayerLightBase::plLayerLightBase()
:	fDirty(true)
{
	fOwnedChannels = kState
				| kAmbientColor
				| kPreshadeColor;

	fState = TRACKED_NEW hsGMatState;
	fState->Reset();
	
	fAmbientColor = TRACKED_NEW hsColorRGBA;
	fAmbientColor->Set(0,0,0,1.f);

	fPreshadeColor = TRACKED_NEW hsColorRGBA;
	fPreshadeColor->Set(0,0,0,1.f);
}

plLayerLightBase::~plLayerLightBase()
{
}

plLayerInterface* plLayerLightBase::Attach(plLayerInterface* prev)
{
	fDirty = true;
	return plLayerInterface::Attach(prev);
}

UInt32 plLayerLightBase::Eval(double secs, UInt32 frame, UInt32 ignore)
{
	UInt32 ret = plLayerInterface::Eval(secs, frame, ignore);
	if( fUnderLay )
	{
		if( fDirty || (ret & kState) )
		{
			*fState = fUnderLay->GetState();

			UInt32 blend = fState->fBlendFlags;

			fState->fBlendFlags &= ~hsGMatState::kBlendMask;

			switch( blend )
			{
			case hsGMatState::kBlendAlpha:
				fState->fBlendFlags |= hsGMatState::kBlendAddColorTimesAlpha;
				break;
			default:
				fState->fBlendFlags |= hsGMatState::kBlendAdd;
				break;
			}

			fState->fZFlags |= hsGMatState::kZNoZWrite;

			fState->fShadeFlags |= hsGMatState::kShadeIgnoreVtxIllum;

			ret |= kState | kAmbientColor;

			fDirty = false;
		}
	}
	return ret;
}

///////////////////////////////////////////////////////////////////////////
plLayerShadowBase::plLayerShadowBase()
:	fDirty(true)
{
	fOwnedChannels = kState
				| kAmbientColor
				| kPreshadeColor;

	fState = TRACKED_NEW hsGMatState;
	fState->Reset();
	
	fAmbientColor = TRACKED_NEW hsColorRGBA;
	fAmbientColor->Set(0,0,0,1.f);

	fPreshadeColor = TRACKED_NEW hsColorRGBA;
	fPreshadeColor->Set(0,0,0,1.f);
}

plLayerShadowBase::~plLayerShadowBase()
{
}

plLayerInterface* plLayerShadowBase::Attach(plLayerInterface* prev)
{
	fDirty = true;
	return plLayerInterface::Attach(prev);
}

UInt32 plLayerShadowBase::Eval(double secs, UInt32 frame, UInt32 ignore)
{
	UInt32 ret = plLayerInterface::Eval(secs, frame, ignore);
	if( fUnderLay )
	{
		if( fDirty || (ret & kState) )
		{
			*fState = fUnderLay->GetState();
			fState->fBlendFlags &= ~hsGMatState::kBlendMask;
			//WHITE
			fState->fBlendFlags |= hsGMatState::kBlendAlpha;

			fState->fZFlags |= hsGMatState::kZNoZWrite;

			fState->fShadeFlags |= hsGMatState::kShadeIgnoreVtxIllum;

			ret |= kState | kAmbientColor | kPreshadeColor;

			fDirty = false;
		}
	}

	return ret;
}