mirror of
https://github.com/ZDoom/Raze.git
synced 2024-12-13 14:10:54 +00:00
555007539d
This fixes #164
474 lines
13 KiB
C++
474 lines
13 KiB
C++
/*
|
|
** dobject.h
|
|
**
|
|
**---------------------------------------------------------------------------
|
|
** Copyright 1998-2008 Randy Heit
|
|
** All rights reserved.
|
|
**
|
|
** Redistribution and use in source and binary forms, with or without
|
|
** modification, are permitted provided that the following conditions
|
|
** are met:
|
|
**
|
|
** 1. Redistributions of source code must retain the above copyright
|
|
** notice, this list of conditions and the following disclaimer.
|
|
** 2. Redistributions in binary form must reproduce the above copyright
|
|
** notice, this list of conditions and the following disclaimer in the
|
|
** documentation and/or other materials provided with the distribution.
|
|
** 3. The name of the author may not be used to endorse or promote products
|
|
** derived from this software without specific prior written permission.
|
|
**
|
|
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
**---------------------------------------------------------------------------
|
|
**
|
|
*/
|
|
|
|
#ifndef __DOBJECT_H__
|
|
#define __DOBJECT_H__
|
|
|
|
#include <stdlib.h>
|
|
#include <type_traits>
|
|
#include "m_alloc.h"
|
|
#include "vectors.h"
|
|
#include "name.h"
|
|
#include "palentry.h"
|
|
#include "textureid.h"
|
|
#include "autosegs.h"
|
|
|
|
class PClass;
|
|
class PType;
|
|
class FSerializer;
|
|
class FSoundID;
|
|
|
|
class DObject;
|
|
/*
|
|
class DConsoleCommand;
|
|
class DConsoleAlias;
|
|
class DSeqNode;
|
|
class DSeqActorNode;
|
|
class DSeqPolyNode;
|
|
class DSeqSectorNode;
|
|
class DThinker;
|
|
class AActor;
|
|
class DPolyAction;
|
|
class DMovePoly;
|
|
class DPolyDoor;
|
|
class DRotatePoly;
|
|
class DPusher;
|
|
class DScroller;
|
|
class DSectorEffect;
|
|
class DLighting;
|
|
class DFireFlicker;
|
|
class DFlicker;
|
|
class DGlow;
|
|
class DGlow2;
|
|
class DLightFlash;
|
|
class DPhased;
|
|
class DStrobe;
|
|
class DMover;
|
|
class DElevator;
|
|
class DMovingCeiling;
|
|
class DCeiling;
|
|
class DDoor;
|
|
class DMovingFloor;
|
|
class DFloor;
|
|
class DFloorWaggle;
|
|
class DPlat;
|
|
class DPillar;
|
|
*/
|
|
|
|
class PClassActor;
|
|
|
|
#define RUNTIME_CLASS_CASTLESS(cls) (cls::RegistrationInfo.MyClass) // Passed a native class name, returns a PClass representing that class
|
|
#define RUNTIME_CLASS(cls) ((typename cls::MetaClass *)RUNTIME_CLASS_CASTLESS(cls)) // Like above, but returns the true type of the meta object
|
|
#define NATIVE_TYPE(object) (object->StaticType()) // Passed an object, returns the type of the C++ class representing the object
|
|
|
|
// Enumerations for the meta classes created by ClassReg::RegisterClass()
|
|
struct ClassReg
|
|
{
|
|
PClass *MyClass;
|
|
const char *Name;
|
|
ClassReg *ParentType;
|
|
ClassReg *_VMExport;
|
|
const size_t *Pointers;
|
|
void (*ConstructNative)(void *);
|
|
void(*InitNatives)();
|
|
unsigned int SizeOf;
|
|
|
|
PClass *RegisterClass();
|
|
void SetupClass(PClass *cls);
|
|
};
|
|
|
|
enum EInPlace { EC_InPlace };
|
|
|
|
#define DECLARE_ABSTRACT_CLASS(cls,parent) \
|
|
public: \
|
|
PClass *StaticType() const override; \
|
|
static ClassReg RegistrationInfo, * const RegistrationInfoPtr; \
|
|
typedef parent Super; \
|
|
private: \
|
|
typedef cls ThisClass;
|
|
|
|
#define DECLARE_ABSTRACT_CLASS_WITH_META(cls,parent,meta) \
|
|
DECLARE_ABSTRACT_CLASS(cls,parent) \
|
|
public: \
|
|
typedef meta MetaClass; \
|
|
MetaClass *GetClass() const { return static_cast<MetaClass *>(DObject::GetClass()); }
|
|
|
|
#define DECLARE_CLASS(cls,parent) \
|
|
DECLARE_ABSTRACT_CLASS(cls,parent) \
|
|
private: static void InPlaceConstructor (void *mem);
|
|
|
|
#define DECLARE_CLASS_WITH_META(cls,parent,meta) \
|
|
DECLARE_ABSTRACT_CLASS_WITH_META(cls,parent,meta) \
|
|
private: static void InPlaceConstructor (void *mem);
|
|
|
|
#define HAS_OBJECT_POINTERS \
|
|
static const size_t PointerOffsets[];
|
|
|
|
#if defined(_MSC_VER)
|
|
# pragma section(SECTION_CREG,read)
|
|
# define _DECLARE_TI(cls) __declspec(allocate(SECTION_CREG)) ClassReg * const cls::RegistrationInfoPtr = &cls::RegistrationInfo;
|
|
#else
|
|
# define _DECLARE_TI(cls) ClassReg * const cls::RegistrationInfoPtr __attribute__((section(SECTION_CREG))) = &cls::RegistrationInfo;
|
|
#endif
|
|
|
|
#define _IMP_PCLASS(cls, ptrs, create) \
|
|
ClassReg cls::RegistrationInfo = {\
|
|
nullptr, \
|
|
#cls, \
|
|
&cls::Super::RegistrationInfo, \
|
|
nullptr, \
|
|
ptrs, \
|
|
create, \
|
|
nullptr, \
|
|
sizeof(cls) }; \
|
|
_DECLARE_TI(cls) \
|
|
PClass *cls::StaticType() const { return RegistrationInfo.MyClass; }
|
|
|
|
#define IMPLEMENT_CLASS(cls, isabstract, ptrs) \
|
|
_X_CONSTRUCTOR_##isabstract(cls) \
|
|
_IMP_PCLASS(cls, _X_POINTERS_##ptrs(cls), _X_ABSTRACT_##isabstract(cls))
|
|
|
|
// Taking the address of a field in an object at address > 0 instead of
|
|
// address 0 keeps GCC from complaining about possible misuse of offsetof.
|
|
// Using 8 to avoid unaligned pointer use.
|
|
#define IMPLEMENT_POINTERS_START(cls) const size_t cls::PointerOffsets[] = {
|
|
#define IMPLEMENT_POINTER(field) ((size_t)&((ThisClass*)8)->field) - 8,
|
|
#define IMPLEMENT_POINTERS_END ~(size_t)0 };
|
|
|
|
// Possible arguments for the IMPLEMENT_CLASS macro
|
|
#define _X_POINTERS_true(cls) cls::PointerOffsets
|
|
#define _X_POINTERS_false(cls) nullptr
|
|
#define _X_FIELDS_true(cls) nullptr
|
|
#define _X_FIELDS_false(cls) nullptr
|
|
#define _X_CONSTRUCTOR_true(cls)
|
|
#define _X_CONSTRUCTOR_false(cls) void cls::InPlaceConstructor(void *mem) { new((EInPlace *)mem) cls; }
|
|
#define _X_ABSTRACT_true(cls) nullptr
|
|
#define _X_ABSTRACT_false(cls) cls::InPlaceConstructor
|
|
#define _X_VMEXPORT_true(cls) nullptr
|
|
#define _X_VMEXPORT_false(cls) nullptr
|
|
|
|
#include "dobjgc.h"
|
|
|
|
class AActor;
|
|
|
|
class DObject
|
|
{
|
|
public:
|
|
virtual PClass *StaticType() const { return RegistrationInfo.MyClass; }
|
|
static ClassReg RegistrationInfo, * const RegistrationInfoPtr;
|
|
static void InPlaceConstructor (void *mem);
|
|
typedef PClass MetaClass;
|
|
private:
|
|
typedef DObject ThisClass;
|
|
protected:
|
|
|
|
// Per-instance variables. There are four.
|
|
#ifndef NDEBUG
|
|
public:
|
|
enum
|
|
{
|
|
MAGIC_ID = 0x1337cafe
|
|
};
|
|
uint32_t MagicID = MAGIC_ID; // only used by the VM for checking native function parameter types.
|
|
#endif
|
|
private:
|
|
PClass *Class; // This object's type
|
|
public:
|
|
DObject *ObjNext; // Keep track of all allocated objects
|
|
DObject *GCNext; // Next object in this collection list
|
|
uint32_t ObjectFlags; // Flags for this object
|
|
|
|
void *ScriptVar(FName field, PType *type);
|
|
|
|
protected:
|
|
|
|
public:
|
|
DObject ();
|
|
DObject (PClass *inClass);
|
|
virtual ~DObject ();
|
|
|
|
inline bool IsKindOf (const PClass *base) const;
|
|
inline bool IsKindOf(FName base) const;
|
|
inline bool IsA (const PClass *type) const;
|
|
|
|
void SerializeUserVars(FSerializer &arc);
|
|
virtual void Serialize(FSerializer &arc);
|
|
|
|
// Releases the object from the GC, letting the caller care of any maintenance.
|
|
void Release();
|
|
|
|
// For catching Serialize functions in derived classes
|
|
// that don't call their base class.
|
|
void CheckIfSerialized () const;
|
|
|
|
virtual void OnDestroy() {}
|
|
void Destroy();
|
|
|
|
// Add other types as needed.
|
|
inline bool &BoolVar(FName field);
|
|
inline int &IntVar(FName field);
|
|
inline FTextureID &TextureIDVar(FName field);
|
|
inline FSoundID &SoundVar(FName field);
|
|
inline PalEntry &ColorVar(FName field);
|
|
inline FName &NameVar(FName field);
|
|
inline double &FloatVar(FName field);
|
|
inline DAngle &AngleVar(FName field);
|
|
inline FString &StringVar(FName field);
|
|
template<class T> T*& PointerVar(FName field);
|
|
|
|
// This is only needed for swapping out PlayerPawns and absolutely nothing else!
|
|
virtual size_t PointerSubstitution (DObject *old, DObject *notOld);
|
|
|
|
PClass *GetClass() const
|
|
{
|
|
assert(Class != nullptr);
|
|
return Class;
|
|
}
|
|
|
|
void SetClass (PClass *inClass)
|
|
{
|
|
Class = inClass;
|
|
}
|
|
|
|
private:
|
|
struct nonew
|
|
{
|
|
};
|
|
|
|
void *operator new(size_t len, nonew&)
|
|
{
|
|
return M_Calloc(len, 1);
|
|
}
|
|
public:
|
|
|
|
void operator delete (void *mem, nonew&)
|
|
{
|
|
M_Free(mem);
|
|
}
|
|
|
|
void operator delete (void *mem)
|
|
{
|
|
M_Free(mem);
|
|
}
|
|
|
|
// GC fiddling
|
|
|
|
// An object is white if either white bit is set.
|
|
bool IsWhite() const
|
|
{
|
|
return !!(ObjectFlags & OF_WhiteBits);
|
|
}
|
|
|
|
bool IsBlack() const
|
|
{
|
|
return !!(ObjectFlags & OF_Black);
|
|
}
|
|
|
|
// An object is gray if it isn't white or black.
|
|
bool IsGray() const
|
|
{
|
|
return !(ObjectFlags & OF_MarkBits);
|
|
}
|
|
|
|
// An object is dead if it's the other white.
|
|
bool IsDead() const
|
|
{
|
|
return !!(ObjectFlags & GC::OtherWhite() & OF_WhiteBits);
|
|
}
|
|
|
|
void ChangeWhite()
|
|
{
|
|
ObjectFlags ^= OF_WhiteBits;
|
|
}
|
|
|
|
void MakeWhite()
|
|
{
|
|
ObjectFlags = (ObjectFlags & ~OF_MarkBits) | (GC::CurrentWhite & OF_WhiteBits);
|
|
}
|
|
|
|
void White2Gray()
|
|
{
|
|
ObjectFlags &= ~OF_WhiteBits;
|
|
}
|
|
|
|
void Black2Gray()
|
|
{
|
|
ObjectFlags &= ~OF_Black;
|
|
}
|
|
|
|
void Gray2Black()
|
|
{
|
|
ObjectFlags |= OF_Black;
|
|
}
|
|
|
|
// Marks all objects pointed to by this one. Returns the (approximate)
|
|
// amount of memory used by this object.
|
|
virtual size_t PropagateMark();
|
|
|
|
protected:
|
|
// This form of placement new and delete is for use *only* by PClass's
|
|
// CreateNew() method. Do not use them for some other purpose.
|
|
void *operator new(size_t, EInPlace *mem)
|
|
{
|
|
return (void *)mem;
|
|
}
|
|
|
|
void operator delete (void *mem, EInPlace *)
|
|
{
|
|
M_Free (mem);
|
|
}
|
|
|
|
template<typename T, typename... Args>
|
|
friend T* Create(Args&&... args);
|
|
|
|
friend class JitCompiler;
|
|
};
|
|
|
|
// This is the only method aside from calling CreateNew that should be used for creating DObjects
|
|
// to ensure that the Class pointer is always set.
|
|
template<typename T, typename... Args>
|
|
T* Create(Args&&... args)
|
|
{
|
|
DObject::nonew nono;
|
|
T *object = new(nono) T(std::forward<Args>(args)...);
|
|
if (object != nullptr)
|
|
{
|
|
object->SetClass(RUNTIME_CLASS(T));
|
|
assert(object->GetClass() != nullptr); // beware of objects that get created before the type system is up.
|
|
}
|
|
return object;
|
|
}
|
|
|
|
|
|
// When you write to a pointer to an Object, you must call this for
|
|
// proper bookkeeping in case the Object holding this pointer has
|
|
// already been processed by the GC.
|
|
static inline void GC::WriteBarrier(DObject *pointing, DObject *pointed)
|
|
{
|
|
if (pointed != NULL && pointed->IsWhite() && pointing->IsBlack())
|
|
{
|
|
Barrier(pointing, pointed);
|
|
}
|
|
}
|
|
|
|
static inline void GC::WriteBarrier(DObject *pointed)
|
|
{
|
|
if (pointed != NULL && State == GCS_Propagate && pointed->IsWhite())
|
|
{
|
|
Barrier(NULL, pointed);
|
|
}
|
|
}
|
|
|
|
#include "memarena.h"
|
|
extern FMemArena ClassDataAllocator;
|
|
#include "symbols.h"
|
|
#include "dobjtype.h"
|
|
|
|
inline bool DObject::IsKindOf (const PClass *base) const
|
|
{
|
|
return base->IsAncestorOf (GetClass ());
|
|
}
|
|
|
|
inline bool DObject::IsKindOf(FName base) const
|
|
{
|
|
return GetClass()->IsDescendantOf(base);
|
|
}
|
|
|
|
inline bool DObject::IsA (const PClass *type) const
|
|
{
|
|
return (type == GetClass());
|
|
}
|
|
|
|
template<class T> T *dyn_cast(DObject *p)
|
|
{
|
|
if (p != NULL && p->IsKindOf(RUNTIME_CLASS_CASTLESS(T)))
|
|
{
|
|
return static_cast<T *>(p);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
|
|
|
|
template<class T> const T *dyn_cast(const DObject *p)
|
|
{
|
|
return dyn_cast<T>(const_cast<DObject *>(p));
|
|
}
|
|
|
|
inline bool &DObject::BoolVar(FName field)
|
|
{
|
|
return *(bool*)ScriptVar(field, nullptr);
|
|
}
|
|
|
|
inline int &DObject::IntVar(FName field)
|
|
{
|
|
return *(int*)ScriptVar(field, nullptr);
|
|
}
|
|
|
|
inline FTextureID &DObject::TextureIDVar(FName field)
|
|
{
|
|
return *(FTextureID*)ScriptVar(field, nullptr);
|
|
}
|
|
|
|
inline FSoundID &DObject::SoundVar(FName field)
|
|
{
|
|
return *(FSoundID*)ScriptVar(field, nullptr);
|
|
}
|
|
|
|
inline PalEntry &DObject::ColorVar(FName field)
|
|
{
|
|
return *(PalEntry*)ScriptVar(field, nullptr);
|
|
}
|
|
|
|
inline FName &DObject::NameVar(FName field)
|
|
{
|
|
return *(FName*)ScriptVar(field, nullptr);
|
|
}
|
|
|
|
inline double &DObject::FloatVar(FName field)
|
|
{
|
|
return *(double*)ScriptVar(field, nullptr);
|
|
}
|
|
|
|
inline DAngle &DObject::AngleVar(FName field)
|
|
{
|
|
return *(DAngle*)ScriptVar(field, nullptr);
|
|
}
|
|
|
|
template<class T>
|
|
inline T *&DObject::PointerVar(FName field)
|
|
{
|
|
return *(T**)ScriptVar(field, nullptr); // pointer check is more tricky and for the handful of uses in the DECORATE parser not worth the hassle.
|
|
}
|
|
|
|
#endif //__DOBJECT_H__
|