/////////////////////////////////////////////////////
/////////////////////////////////////////////////////
//
//		            IsStretchRectSupported
//
/////////////////////////////////////////////////////
/////////////////////////////////////////////////////
#include "stdafx.h"
#include "CKRasterizer.h"

CKERROR CreateIsStretchRectSupportedProto(CKBehaviorPrototype **);
int IsStretchRectSupported(const CKBehaviorContext& behcontext);

enum
{
	OutParam_StretchRectSupported = 0
};

CKObjectDeclaration	*FillBehaviorIsStretchRectSupported()
{

	CKObjectDeclaration *od = CreateCKObjectDeclaration("Is Stretch Rect Supported");
	od->SetDescription("Tells wether the Stretch Rect functionnality is supported by the current rasterizer");
	od->SetCategory("Shaders/General");
	od->SetType(CKDLL_BEHAVIORPROTOTYPE);
	od->SetGuid(CKGUID(0x558b6423, 0x1a7362eb));
	od->SetAuthorGuid(CKGUID());
	od->SetAuthorName("Virtools");
	od->SetVersion(0x00010000);
	od->SetCreationFunction(CreateIsStretchRectSupportedProto);
	return od;
}

CKERROR CreateIsStretchRectSupportedProto(CKBehaviorPrototype **pproto)
{
	CKBehaviorPrototype *proto = CreateCKBehaviorPrototype("Is Stretch Rect Supported");
	if(!proto) return CKERR_OUTOFMEMORY;

	proto->DeclareInput("In");
	proto->DeclareOutput("Yes");
	proto->DeclareOutput("No");
	
	proto->DeclareOutParameter("Supported",	 CKPGUID_BOOL,	"TRUE" );

	proto->SetFlags(CK_BEHAVIORPROTOTYPE_NORMAL);
	proto->SetFunction(IsStretchRectSupported);
	proto->SetBehaviorFlags(CKBEHAVIOR_TARGETABLE);
	

	*pproto = proto;
	return CK_OK;

}

int IsStretchRectSupported(const CKBehaviorContext& behcontext)
{
	CKBehavior* beh = behcontext.Behavior;
	beh->ActivateInput(0,FALSE);
	//	
	CKRasterizerContext* rsctx = behcontext.CurrentRenderContext->GetRasterizerContext();
	CKBOOL support = rsctx ? rsctx->m_Driver->m_3DCaps.StretchRectSupport : FALSE;	
	beh->SetOutputParameterValue(OutParam_StretchRectSupported, &support);
	beh->ActivateOutput(support ? 0 : 1);		
	return CKBR_OK;
}