mirror of
https://github.com/ZDoom/gzdoom.git
synced 2024-11-25 21:41:03 +00:00
c197d0687c
- Fixed: Don't access class metadata at all in DObject::PropagateMark if the type system is shutdown. - Fixed: If FCompressedMemFile::Reopen() fails, then it would try to double-free memory when deleted. SVN r3688 (trunk)
631 lines
15 KiB
C++
631 lines
15 KiB
C++
/*
|
|
** dobject.cpp
|
|
** Implements the base class DObject, which most other classes derive from
|
|
**
|
|
**---------------------------------------------------------------------------
|
|
** Copyright 1998-2006 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.
|
|
**---------------------------------------------------------------------------
|
|
**
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "cmdlib.h"
|
|
#include "actor.h"
|
|
#include "dobject.h"
|
|
#include "doomstat.h" // Ideally, DObjects can be used independant of Doom.
|
|
#include "d_player.h" // See p_user.cpp to find out why this doesn't work.
|
|
#include "g_game.h" // Needed for bodyque.
|
|
#include "c_dispatch.h"
|
|
#include "i_system.h"
|
|
#include "r_state.h"
|
|
#include "stats.h"
|
|
#include "a_sharedglobal.h"
|
|
#include "dsectoreffect.h"
|
|
#include "farchive.h"
|
|
|
|
PClass DObject::_StaticType;
|
|
ClassReg DObject::RegistrationInfo =
|
|
{
|
|
&DObject::_StaticType, // MyClass
|
|
"DObject", // Name
|
|
NULL, // ParentType
|
|
sizeof(DObject), // SizeOf
|
|
NULL, // Pointers
|
|
&DObject::InPlaceConstructor // ConstructNative
|
|
};
|
|
_DECLARE_TI(DObject)
|
|
|
|
FMetaTable::~FMetaTable ()
|
|
{
|
|
FreeMeta ();
|
|
}
|
|
|
|
FMetaTable::FMetaTable (const FMetaTable &other)
|
|
{
|
|
Meta = NULL;
|
|
CopyMeta (&other);
|
|
}
|
|
|
|
FMetaTable &FMetaTable::operator = (const FMetaTable &other)
|
|
{
|
|
CopyMeta (&other);
|
|
return *this;
|
|
}
|
|
|
|
void FMetaTable::FreeMeta ()
|
|
{
|
|
while (Meta != NULL)
|
|
{
|
|
FMetaData *meta = Meta;
|
|
|
|
switch (meta->Type)
|
|
{
|
|
case META_String:
|
|
delete[] meta->Value.String;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
Meta = meta->Next;
|
|
delete meta;
|
|
}
|
|
}
|
|
|
|
void FMetaTable::CopyMeta (const FMetaTable *other)
|
|
{
|
|
const FMetaData *meta_src;
|
|
FMetaData **meta_dest;
|
|
|
|
FreeMeta ();
|
|
|
|
meta_src = other->Meta;
|
|
meta_dest = &Meta;
|
|
while (meta_src != NULL)
|
|
{
|
|
FMetaData *newmeta = new FMetaData (meta_src->Type, meta_src->ID);
|
|
switch (meta_src->Type)
|
|
{
|
|
case META_String:
|
|
newmeta->Value.String = copystring (meta_src->Value.String);
|
|
break;
|
|
default:
|
|
newmeta->Value = meta_src->Value;
|
|
break;
|
|
}
|
|
*meta_dest = newmeta;
|
|
meta_dest = &newmeta->Next;
|
|
meta_src = meta_src->Next;
|
|
}
|
|
*meta_dest = NULL;
|
|
}
|
|
|
|
FMetaData *FMetaTable::FindMeta (EMetaType type, DWORD id) const
|
|
{
|
|
FMetaData *meta = Meta;
|
|
|
|
while (meta != NULL)
|
|
{
|
|
if (meta->ID == id && meta->Type == type)
|
|
{
|
|
return meta;
|
|
}
|
|
meta = meta->Next;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
FMetaData *FMetaTable::FindMetaDef (EMetaType type, DWORD id)
|
|
{
|
|
FMetaData *meta = FindMeta (type, id);
|
|
if (meta == NULL)
|
|
{
|
|
meta = new FMetaData (type, id);
|
|
meta->Next = Meta;
|
|
meta->Value.String = NULL;
|
|
Meta = meta;
|
|
}
|
|
return meta;
|
|
}
|
|
|
|
void FMetaTable::SetMetaInt (DWORD id, int parm)
|
|
{
|
|
FMetaData *meta = FindMetaDef (META_Int, id);
|
|
meta->Value.Int = parm;
|
|
}
|
|
|
|
int FMetaTable::GetMetaInt (DWORD id, int def) const
|
|
{
|
|
FMetaData *meta = FindMeta (META_Int, id);
|
|
return meta != NULL ? meta->Value.Int : def;
|
|
}
|
|
|
|
void FMetaTable::SetMetaFixed (DWORD id, fixed_t parm)
|
|
{
|
|
FMetaData *meta = FindMetaDef (META_Fixed, id);
|
|
meta->Value.Fixed = parm;
|
|
}
|
|
|
|
fixed_t FMetaTable::GetMetaFixed (DWORD id, fixed_t def) const
|
|
{
|
|
FMetaData *meta = FindMeta (META_Fixed, id);
|
|
return meta != NULL ? meta->Value.Fixed : def;
|
|
}
|
|
|
|
void FMetaTable::SetMetaString (DWORD id, const char *parm)
|
|
{
|
|
FMetaData *meta = FindMetaDef (META_String, id);
|
|
ReplaceString (&meta->Value.String, parm);
|
|
}
|
|
|
|
const char *FMetaTable::GetMetaString (DWORD id) const
|
|
{
|
|
FMetaData *meta = FindMeta (META_String, id);
|
|
return meta != NULL ? meta->Value.String : NULL;
|
|
}
|
|
|
|
CCMD (dumpactors)
|
|
{
|
|
const char *const filters[32] =
|
|
{
|
|
"0:All", "1:Doom", "2:Heretic", "3:DoomHeretic", "4:Hexen", "5:DoomHexen", "6:Raven", "7:IdRaven",
|
|
"8:Strife", "9:DoomStrife", "10:HereticStrife", "11:DoomHereticStrife", "12:HexenStrife",
|
|
"13:DoomHexenStrife", "14:RavenStrife", "15:NotChex", "16:Chex", "17:DoomChex", "18:HereticChex",
|
|
"19:DoomHereticChex", "20:HexenChex", "21:DoomHexenChex", "22:RavenChex", "23:NotStrife", "24:StrifeChex",
|
|
"25:DoomStrifeChex", "26:HereticStrifeChex", "27:NotHexen", "28:HexenStrifeChex", "29:NotHeretic",
|
|
"30:NotDoom", "31:All",
|
|
};
|
|
Printf("%i object class types total\nActor\tEd Num\tSpawnID\tFilter\tSource\n", PClass::m_Types.Size());
|
|
for (unsigned int i = 0; i < PClass::m_Types.Size(); i++)
|
|
{
|
|
PClass *cls = PClass::m_Types[i];
|
|
if (cls != NULL && cls->ActorInfo != NULL)
|
|
Printf("%s\t%i\t%i\t%s\t%s\n",
|
|
cls->TypeName.GetChars(), cls->ActorInfo->DoomEdNum,
|
|
cls->ActorInfo->SpawnID, filters[cls->ActorInfo->GameFilter & 31],
|
|
cls->Meta.GetMetaString (ACMETA_Lump));
|
|
else if (cls != NULL)
|
|
Printf("%s\tn/a\tn/a\tn/a\tEngine (not an actor type)\n", cls->TypeName.GetChars());
|
|
else
|
|
Printf("Type %i is not an object class\n", i);
|
|
}
|
|
}
|
|
|
|
CCMD (dumpclasses)
|
|
{
|
|
// This is by no means speed-optimized. But it's an informational console
|
|
// command that will be executed infrequently, so I don't mind.
|
|
struct DumpInfo
|
|
{
|
|
const PClass *Type;
|
|
DumpInfo *Next;
|
|
DumpInfo *Children;
|
|
|
|
static DumpInfo *FindType (DumpInfo *root, const PClass *type)
|
|
{
|
|
if (root == NULL)
|
|
{
|
|
return root;
|
|
}
|
|
if (root->Type == type)
|
|
{
|
|
return root;
|
|
}
|
|
if (root->Next != NULL)
|
|
{
|
|
return FindType (root->Next, type);
|
|
}
|
|
if (root->Children != NULL)
|
|
{
|
|
return FindType (root->Children, type);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static DumpInfo *AddType (DumpInfo **root, const PClass *type)
|
|
{
|
|
DumpInfo *info, *parentInfo;
|
|
|
|
if (*root == NULL)
|
|
{
|
|
info = new DumpInfo;
|
|
info->Type = type;
|
|
info->Next = NULL;
|
|
info->Children = *root;
|
|
*root = info;
|
|
return info;
|
|
}
|
|
if (type->ParentClass == (*root)->Type)
|
|
{
|
|
parentInfo = *root;
|
|
}
|
|
else if (type == (*root)->Type)
|
|
{
|
|
return *root;
|
|
}
|
|
else
|
|
{
|
|
parentInfo = FindType (*root, type->ParentClass);
|
|
if (parentInfo == NULL)
|
|
{
|
|
parentInfo = AddType (root, type->ParentClass);
|
|
}
|
|
}
|
|
// Has this type already been added?
|
|
for (info = parentInfo->Children; info != NULL; info = info->Next)
|
|
{
|
|
if (info->Type == type)
|
|
{
|
|
return info;
|
|
}
|
|
}
|
|
info = new DumpInfo;
|
|
info->Type = type;
|
|
info->Next = parentInfo->Children;
|
|
info->Children = NULL;
|
|
parentInfo->Children = info;
|
|
return info;
|
|
}
|
|
|
|
static void PrintTree (DumpInfo *root, int level)
|
|
{
|
|
Printf ("%*c%s\n", level, ' ', root->Type->TypeName.GetChars());
|
|
if (root->Children != NULL)
|
|
{
|
|
PrintTree (root->Children, level + 2);
|
|
}
|
|
if (root->Next != NULL)
|
|
{
|
|
PrintTree (root->Next, level);
|
|
}
|
|
}
|
|
|
|
static void FreeTree (DumpInfo *root)
|
|
{
|
|
if (root->Children != NULL)
|
|
{
|
|
FreeTree (root->Children);
|
|
}
|
|
if (root->Next != NULL)
|
|
{
|
|
FreeTree (root->Next);
|
|
}
|
|
delete root;
|
|
}
|
|
};
|
|
|
|
unsigned int i;
|
|
int shown, omitted;
|
|
DumpInfo *tree = NULL;
|
|
const PClass *root = NULL;
|
|
bool showall = true;
|
|
|
|
if (argv.argc() > 1)
|
|
{
|
|
root = PClass::FindClass (argv[1]);
|
|
if (root == NULL)
|
|
{
|
|
Printf ("Class '%s' not found\n", argv[1]);
|
|
return;
|
|
}
|
|
if (stricmp (argv[1], "Actor") == 0)
|
|
{
|
|
if (argv.argc() < 3 || stricmp (argv[2], "all") != 0)
|
|
{
|
|
showall = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
shown = omitted = 0;
|
|
DumpInfo::AddType (&tree, root != NULL ? root : RUNTIME_CLASS(DObject));
|
|
for (i = 0; i < PClass::m_Types.Size(); i++)
|
|
{
|
|
PClass *cls = PClass::m_Types[i];
|
|
if (root == NULL ||
|
|
(cls->IsDescendantOf (root) &&
|
|
(showall || cls == root ||
|
|
cls->ActorInfo != root->ActorInfo)))
|
|
{
|
|
DumpInfo::AddType (&tree, cls);
|
|
// Printf (" %s\n", PClass::m_Types[i]->Name + 1);
|
|
shown++;
|
|
}
|
|
else
|
|
{
|
|
omitted++;
|
|
}
|
|
}
|
|
DumpInfo::PrintTree (tree, 2);
|
|
DumpInfo::FreeTree (tree);
|
|
Printf ("%d classes shown, %d omitted\n", shown, omitted);
|
|
}
|
|
|
|
void DObject::InPlaceConstructor (void *mem)
|
|
{
|
|
new ((EInPlace *)mem) DObject;
|
|
}
|
|
|
|
DObject::DObject ()
|
|
: Class(0), ObjectFlags(0)
|
|
{
|
|
ObjectFlags = GC::CurrentWhite & OF_WhiteBits;
|
|
ObjNext = GC::Root;
|
|
GC::Root = this;
|
|
}
|
|
|
|
DObject::DObject (PClass *inClass)
|
|
: Class(inClass), ObjectFlags(0)
|
|
{
|
|
ObjectFlags = GC::CurrentWhite & OF_WhiteBits;
|
|
ObjNext = GC::Root;
|
|
GC::Root = this;
|
|
}
|
|
|
|
DObject::~DObject ()
|
|
{
|
|
if (!(ObjectFlags & OF_Cleanup))
|
|
{
|
|
DObject **probe;
|
|
PClass *type = GetClass();
|
|
|
|
if (!(ObjectFlags & OF_YesReallyDelete))
|
|
{
|
|
Printf ("Warning: '%s' is freed outside the GC process.\n",
|
|
type != NULL ? type->TypeName.GetChars() : "==some object==");
|
|
}
|
|
|
|
// Find all pointers that reference this object and NULL them.
|
|
StaticPointerSubstitution(this, NULL);
|
|
|
|
// Now unlink this object from the GC list.
|
|
for (probe = &GC::Root; *probe != NULL; probe = &((*probe)->ObjNext))
|
|
{
|
|
if (*probe == this)
|
|
{
|
|
*probe = ObjNext;
|
|
if (&ObjNext == GC::SweepPos)
|
|
{
|
|
GC::SweepPos = probe;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// If it's gray, also unlink it from the gray list.
|
|
if (this->IsGray())
|
|
{
|
|
for (probe = &GC::Gray; *probe != NULL; probe = &((*probe)->GCNext))
|
|
{
|
|
if (*probe == this)
|
|
{
|
|
*probe = GCNext;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void DObject::Destroy ()
|
|
{
|
|
ObjectFlags = (ObjectFlags & ~OF_Fixed) | OF_EuthanizeMe;
|
|
}
|
|
|
|
size_t DObject::PropagateMark()
|
|
{
|
|
const PClass *info = GetClass();
|
|
if (!PClass::bShutdown)
|
|
{
|
|
const size_t *offsets = info->FlatPointers;
|
|
if (offsets == NULL)
|
|
{
|
|
const_cast<PClass *>(info)->BuildFlatPointers();
|
|
offsets = info->FlatPointers;
|
|
}
|
|
while (*offsets != ~(size_t)0)
|
|
{
|
|
GC::Mark((DObject **)((BYTE *)this + *offsets));
|
|
offsets++;
|
|
}
|
|
return info->Size;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
size_t DObject::PointerSubstitution (DObject *old, DObject *notOld)
|
|
{
|
|
const PClass *info = GetClass();
|
|
const size_t *offsets = info->FlatPointers;
|
|
size_t changed = 0;
|
|
if (offsets == NULL)
|
|
{
|
|
const_cast<PClass *>(info)->BuildFlatPointers();
|
|
offsets = info->FlatPointers;
|
|
}
|
|
while (*offsets != ~(size_t)0)
|
|
{
|
|
if (*(DObject **)((BYTE *)this + *offsets) == old)
|
|
{
|
|
*(DObject **)((BYTE *)this + *offsets) = notOld;
|
|
changed++;
|
|
}
|
|
offsets++;
|
|
}
|
|
return changed;
|
|
}
|
|
|
|
size_t DObject::StaticPointerSubstitution (DObject *old, DObject *notOld)
|
|
{
|
|
DObject *probe;
|
|
size_t changed = 0;
|
|
int i;
|
|
|
|
// Go through all objects.
|
|
for (probe = GC::Root; probe != NULL; probe = probe->ObjNext)
|
|
{
|
|
changed += probe->PointerSubstitution(old, notOld);
|
|
}
|
|
|
|
// Go through the bodyque.
|
|
for (i = 0; i < BODYQUESIZE; ++i)
|
|
{
|
|
if (bodyque[i] == old)
|
|
{
|
|
bodyque[i] = static_cast<AActor *>(notOld);
|
|
changed++;
|
|
}
|
|
}
|
|
|
|
// Go through players.
|
|
for (i = 0; i < MAXPLAYERS; i++)
|
|
{
|
|
if (playeringame[i])
|
|
changed += players[i].FixPointers (old, notOld);
|
|
}
|
|
|
|
// Go through sectors.
|
|
if (sectors != NULL)
|
|
{
|
|
for (i = 0; i < numsectors; ++i)
|
|
{
|
|
#define SECTOR_CHECK(f,t) \
|
|
if (sectors[i].f.p == static_cast<t *>(old)) { sectors[i].f = static_cast<t *>(notOld); changed++; }
|
|
SECTOR_CHECK( SoundTarget, AActor );
|
|
SECTOR_CHECK( CeilingSkyBox, ASkyViewpoint );
|
|
SECTOR_CHECK( FloorSkyBox, ASkyViewpoint );
|
|
SECTOR_CHECK( SecActTarget, ASectorAction );
|
|
SECTOR_CHECK( floordata, DSectorEffect );
|
|
SECTOR_CHECK( ceilingdata, DSectorEffect );
|
|
SECTOR_CHECK( lightingdata, DSectorEffect );
|
|
#undef SECTOR_CHECK
|
|
}
|
|
}
|
|
|
|
// Go through bot stuff.
|
|
if (bglobal.firstthing.p == (AActor *)old) bglobal.firstthing = (AActor *)notOld, ++changed;
|
|
if (bglobal.body1.p == (AActor *)old) bglobal.body1 = (AActor *)notOld, ++changed;
|
|
if (bglobal.body2.p == (AActor *)old) bglobal.body2 = (AActor *)notOld, ++changed;
|
|
|
|
return changed;
|
|
}
|
|
|
|
void DObject::SerializeUserVars(FArchive &arc)
|
|
{
|
|
PSymbolTable *symt;
|
|
FName varname;
|
|
DWORD count, j;
|
|
int *varloc = NULL;
|
|
|
|
symt = &GetClass()->Symbols;
|
|
|
|
if (arc.IsStoring())
|
|
{
|
|
// Write all user variables.
|
|
for (; symt != NULL; symt = symt->ParentSymbolTable)
|
|
{
|
|
for (unsigned i = 0; i < symt->Symbols.Size(); ++i)
|
|
{
|
|
PSymbol *sym = symt->Symbols[i];
|
|
if (sym->SymbolType == SYM_Variable)
|
|
{
|
|
PSymbolVariable *var = static_cast<PSymbolVariable *>(sym);
|
|
if (var->bUserVar)
|
|
{
|
|
count = var->ValueType.Type == VAL_Array ? var->ValueType.size : 1;
|
|
varloc = (int *)(reinterpret_cast<BYTE *>(this) + var->offset);
|
|
|
|
arc << var->SymbolName;
|
|
arc.WriteCount(count);
|
|
for (j = 0; j < count; ++j)
|
|
{
|
|
arc << varloc[j];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// Write terminator.
|
|
varname = NAME_None;
|
|
arc << varname;
|
|
}
|
|
else
|
|
{
|
|
// Read user variables until 'None' is encountered.
|
|
arc << varname;
|
|
while (varname != NAME_None)
|
|
{
|
|
PSymbol *sym = symt->FindSymbol(varname, true);
|
|
DWORD wanted = 0;
|
|
|
|
if (sym != NULL && sym->SymbolType == SYM_Variable)
|
|
{
|
|
PSymbolVariable *var = static_cast<PSymbolVariable *>(sym);
|
|
|
|
if (var->bUserVar)
|
|
{
|
|
wanted = var->ValueType.Type == VAL_Array ? var->ValueType.size : 1;
|
|
varloc = (int *)(reinterpret_cast<BYTE *>(this) + var->offset);
|
|
}
|
|
}
|
|
count = arc.ReadCount();
|
|
for (j = 0; j < MIN(wanted, count); ++j)
|
|
{
|
|
arc << varloc[j];
|
|
}
|
|
if (wanted < count)
|
|
{
|
|
// Ignore remaining values from archive.
|
|
for (; j < count; ++j)
|
|
{
|
|
int foo;
|
|
arc << foo;
|
|
}
|
|
}
|
|
arc << varname;
|
|
}
|
|
}
|
|
}
|
|
|
|
void DObject::Serialize (FArchive &arc)
|
|
{
|
|
ObjectFlags |= OF_SerialSuccess;
|
|
}
|
|
|
|
void DObject::CheckIfSerialized () const
|
|
{
|
|
if (!(ObjectFlags & OF_SerialSuccess))
|
|
{
|
|
I_Error (
|
|
"BUG: %s::Serialize\n"
|
|
"(or one of its superclasses) needs to call\n"
|
|
"Super::Serialize\n",
|
|
StaticType()->TypeName.GetChars());
|
|
}
|
|
}
|
|
|