122 lines
4.3 KiB
C
122 lines
4.3 KiB
C
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/**********************************************************************
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Filename : GFxAsFunctionObject.h
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Content : ActionScript function object
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Created : May 5, 2008
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Authors : Artyom Bolgar
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Copyright : (c) 2001-2008 Scaleform Corp. All Rights Reserved.
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Notes :
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Licensees may use this file in accordance with the valid Scaleform
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Commercial License Agreement provided with the software.
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This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING
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THE WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR ANY PURPOSE.
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**********************************************************************/
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#ifndef INC_GASASFUNCOBJ_H
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#define INC_GASASFUNCOBJ_H
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#include "GFxPlayerImpl.h"
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// Function object for ActionScript functions ("As-functions")
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class GASAsFunctionObject : public GASFunctionObject
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{
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friend class GASFunctionObject;
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friend class InvokeContext;
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protected:
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GFxMovieRoot* pMovieRoot;
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GPtr<GFxCharacterHandle> TargetHandle;
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GPtr<GASActionBuffer> pActionBuffer;
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GASWithStackArray WithStack; // initial with-stack on function entry.
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UInt StartPc;
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UInt Length;
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struct ArgSpec
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{
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int Register;
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GASString Name;
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ArgSpec(int r, const GASString &n)
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: Register(r), Name(n) { }
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ArgSpec(const ArgSpec& s)
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: Register(s.Register), Name(s.Name) { }
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};
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GArrayCC<ArgSpec, GFxStatMV_ActionScript_Mem> Args;
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UInt16 Function2Flags; // used by function2 to control implicit arg register assignments
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UByte ExecType; // GASActionBuffer::ExecuteType - Function2, Event, etc.
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UByte LocalRegisterCount;
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GASAsFunctionObject(GASStringContext* psc);
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GASAsFunctionObject(GASEnvironment* penv);
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#ifndef GFC_NO_GC
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void Finalize_GC()
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{
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Args.~GArrayCC();
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WithStack.~GASWithStackArray();
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pActionBuffer = NULL;
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TargetHandle = NULL;
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//pMovieRoot = 0;
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GASFunctionObject::Finalize_GC();
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}
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#endif // GFC_NO_GC
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public:
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GASAsFunctionObject(GASEnvironment* penv, GASActionBuffer* ab,
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UInt start, UInt length,
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const GASWithStackArray* pwithStack,
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GASActionBuffer::ExecuteType execType = GASActionBuffer::Exec_Function);
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virtual GASEnvironment* GetEnvironment(const GASFnCall& fn, GPtr<GFxASCharacter>* ptargetCh);
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virtual void Invoke (const GASFnCall& fn, GASLocalFrame*, const char* pmethodName);
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virtual bool IsNull () const { return false; }
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virtual bool IsEqual(const GASFunctionObject&) const { return false; } // not impl
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virtual bool IsAsFunction() const { return true; }
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//virtual GASFunctionRef ToFunction();
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// returns number of arguments expected by this function;
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// returns -1 if number of arguments is unknown (for C functions)
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int GetNumArgs() const { return (UInt)Args.GetSize(); }
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const ArgSpec* GetArg(int i) const { return &Args[i]; }
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GASActionBuffer* GetActionBuffer() const { return pActionBuffer; }
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UInt GetStartPC() const { return StartPc; }
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UInt GetLength() const { return Length; }
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virtual GASObject* CreateNewObject(GASEnvironment* penv) const;
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// AS-function specific methods
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void SetExecType(GASActionBuffer::ExecuteType execType) { ExecType = (UByte)execType; }
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GASActionBuffer::ExecuteType GetExecType() const { return (GASActionBuffer::ExecuteType)ExecType; }
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bool IsFunction2() const { return ExecType == GASActionBuffer::Exec_Function2; }
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void SetLocalRegisterCount(UByte ct) { GASSERT(IsFunction2()); LocalRegisterCount = ct; }
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void SetFunction2Flags(UInt16 flags) { GASSERT(IsFunction2()); Function2Flags = flags; }
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class GFxASCharacter* GetTargetCharacter();
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const ArgSpec& AddArg(int argRegister, const GASString& name)
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{
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GASSERT(argRegister == 0 || IsFunction2() == true);
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Args.Resize(Args.GetSize() + 1);
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ArgSpec& arg = Args.Back();
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arg.Register = argRegister;
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arg.Name = name;
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return arg;
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}
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void SetLength(int len) { GASSERT(len >= 0); Length = len; }
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};
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#endif //INC_GASASFUNCOBJ_H
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