mirror of
https://github.com/ZDoom/gzdoom.git
synced 2024-12-02 17:02:25 +00:00
620 lines
15 KiB
C++
620 lines
15 KiB
C++
/*
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** serializer.cpp
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** Savegame wrapper around RapidJSON
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**
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**---------------------------------------------------------------------------
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** Copyright 2016 Christoph Oelckers
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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**
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**---------------------------------------------------------------------------
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**
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*/
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// The #defines here *MUST* match serializer.cpp, or we will get countless strange errors.
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#define RAPIDJSON_48BITPOINTER_OPTIMIZATION 0 // disable this insanity which is bound to make the code break over time.
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#define RAPIDJSON_HAS_CXX11_RVALUE_REFS 1
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#define RAPIDJSON_HAS_CXX11_RANGE_FOR 1
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#define RAPIDJSON_PARSE_DEFAULT_FLAGS kParseFullPrecisionFlag
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#include <zlib.h>
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#include "rapidjson/rapidjson.h"
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#include "rapidjson/writer.h"
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#include "rapidjson/prettywriter.h"
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#include "rapidjson/document.h"
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#include "serializer_doom.h"
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#include "actor.h"
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#include "r_defs.h"
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#include "printf.h"
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#include "p_lnspec.h"
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#include "utf8.h"
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#include "g_levellocals.h"
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#include "p_conversation.h"
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#include "p_terrain.h"
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#include "serializer_internal.h"
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//==========================================================================
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//
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// we must explicitly delete all thinkers in the array which did not get linked into the thinker lists.
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// Otherwise these objects may survive a level deletion and point to incorrect data.
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//
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//==========================================================================
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void FDoomSerializer::CloseReaderCustom()
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{
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for (auto obj : r->mDObjects)
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{
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auto think = dyn_cast<DThinker>(obj);
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if (think != nullptr)
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{
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if (think->NextThinker == nullptr || think->PrevThinker == nullptr)
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{
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think->Destroy();
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}
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}
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}
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}
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//==========================================================================
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//
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// Special handler for args (because ACS specials' arg0 needs special treatment.)
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//
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//==========================================================================
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FSerializer &SerializeArgs(FSerializer& arc, const char *key, int *args, int *defargs, int special)
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{
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if (arc.isWriting())
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{
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auto &w = arc.w;
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if (w->inObject() && defargs != nullptr && !memcmp(args, defargs, 5 * sizeof(int)))
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{
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return arc;
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}
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arc.WriteKey(key);
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w->StartArray();
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for (int i = 0; i < 5; i++)
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{
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if (i == 0 && args[i] < 0 && P_IsACSSpecial(special))
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{
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w->String(FName(ENamedName(-args[i])).GetChars());
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}
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else
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{
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w->Int(args[i]);
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}
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}
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w->EndArray();
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}
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else
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{
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auto &r = arc.r;
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auto val = r->FindKey(key);
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if (val != nullptr)
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{
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if (val->IsArray())
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{
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unsigned int cnt = MIN<unsigned>(val->Size(), 5);
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for (unsigned int i = 0; i < cnt; i++)
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{
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const rapidjson::Value &aval = (*val)[i];
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if (aval.IsInt())
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{
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args[i] = aval.GetInt();
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}
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else if (i == 0 && aval.IsString())
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{
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args[i] = -FName(UnicodeToString(aval.GetString())).GetIndex();
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}
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else
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{
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assert(false && "Integer expected");
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Printf(TEXTCOLOR_RED "Integer expected for '%s[%d]'\n", key, i);
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arc.mErrors++;
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}
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}
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}
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else
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{
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assert(false && "array expected");
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Printf(TEXTCOLOR_RED "array expected for '%s'\n", key);
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arc.mErrors++;
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}
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}
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}
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return arc;
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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FSerializer &SerializeTerrain(FSerializer &arc, const char *key, int &terrain, int *def)
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{
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if (arc.isWriting() && def != nullptr && terrain == *def)
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{
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return arc;
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}
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FName terr = P_GetTerrainName(terrain);
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Serialize(arc, key, terr, nullptr);
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if (arc.isReading())
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{
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terrain = P_FindTerrain(terr);
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}
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return arc;
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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FSerializer &FDoomSerializer::Sprite(const char *key, int32_t &spritenum, int32_t *def)
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{
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if (isWriting())
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{
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if (w->inObject() && def != nullptr && *def == spritenum) return *this;
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WriteKey(key);
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w->String(sprites[spritenum].name, 4);
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}
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else
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{
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auto val = r->FindKey(key);
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if (val != nullptr)
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{
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if (val->IsString())
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{
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uint32_t name = *reinterpret_cast<const uint32_t*>(UnicodeToString(val->GetString()));
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for (auto hint = NumStdSprites; hint-- != 0; )
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{
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if (sprites[hint].dwName == name)
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{
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spritenum = hint;
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break;
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}
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}
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}
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}
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}
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return *this;
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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FSerializer& FDoomSerializer::StatePointer(const char* key, void* ptraddr, bool *res)
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{
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if (isWriting())
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{
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if (res) *res = true;
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(*this)(key, *(FState**)ptraddr);
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}
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else
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{
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::Serialize(*this, key, *(FState**)ptraddr, nullptr, res);
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}
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return *this;
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}
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template<> FSerializer &Serialize(FSerializer &ar, const char *key, FPolyObj *&value, FPolyObj **defval)
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{
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auto arc = dynamic_cast<FDoomSerializer*>(&ar);
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if (!arc || arc->Level == nullptr) I_Error("Trying to serialize polyobject without a valid level");
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return SerializePointer(*arc, key, value, defval, arc->Level->Polyobjects);
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}
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template<> FSerializer &Serialize(FSerializer &ar, const char *key, side_t *&value, side_t **defval)
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{
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auto arc = dynamic_cast<FDoomSerializer*>(&ar);
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if (!arc || arc->Level == nullptr) I_Error("Trying to serialize SIDEDEF without a valid level");
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return SerializePointer(*arc, key, value, defval, arc->Level->sides);
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}
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template<> FSerializer &Serialize(FSerializer &ar, const char *key, sector_t *&value, sector_t **defval)
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{
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auto arc = dynamic_cast<FDoomSerializer*>(&ar);
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if (!arc || arc->Level == nullptr) I_Error("Trying to serialize sector without a valid level");
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return SerializePointer(*arc, key, value, defval, arc->Level->sectors);
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}
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template<> FSerializer &Serialize(FSerializer &arc, const char *key, player_t *&value, player_t **defval)
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{
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return SerializePointer(arc, key, value, defval, players, MAXPLAYERS);
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}
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template<> FSerializer &Serialize(FSerializer &ar, const char *key, line_t *&value, line_t **defval)
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{
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auto arc = dynamic_cast<FDoomSerializer*>(&ar);
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if (!arc || arc->Level == nullptr) I_Error("Trying to serialize linedef without a valid level");
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return SerializePointer(*arc, key, value, defval, arc->Level->lines);
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}
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template<> FSerializer &Serialize(FSerializer &ar, const char *key, vertex_t *&value, vertex_t **defval)
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{
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auto arc = dynamic_cast<FDoomSerializer*>(&ar);
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if (!arc || arc->Level == nullptr) I_Error("Trying to serialize vertex without a valid level");
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return SerializePointer(*arc, key, value, defval, arc->Level->vertexes);
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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template<> FSerializer &Serialize(FSerializer &arc, const char *key, PClassActor *&clst, PClassActor **def)
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{
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if (arc.isWriting())
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{
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if (!arc.w->inObject() || def == nullptr || clst != *def)
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{
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arc.WriteKey(key);
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if (clst == nullptr)
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{
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arc.w->Null();
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}
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else
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{
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arc.w->String(clst->TypeName.GetChars());
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}
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}
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}
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else
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{
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auto val = arc.r->FindKey(key);
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if (val != nullptr)
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{
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assert(val->IsString() || val->IsNull());
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if (val->IsString())
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{
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clst = PClass::FindActor(UnicodeToString(val->GetString()));
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}
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else if (val->IsNull())
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{
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clst = nullptr;
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}
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else
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{
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Printf(TEXTCOLOR_RED "string type expected for '%s'\n", key);
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clst = nullptr;
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arc.mErrors++;
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}
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}
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}
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return arc;
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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FSerializer &Serialize(FSerializer &arc, const char *key, FState *&state, FState **def, bool *retcode)
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{
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if (retcode) *retcode = false;
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if (arc.isWriting())
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{
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if (!arc.w->inObject() || def == nullptr || state != *def)
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{
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if (retcode) *retcode = true;
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arc.WriteKey(key);
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if (state == nullptr)
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{
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arc.w->Null();
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}
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else
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{
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PClassActor *info = FState::StaticFindStateOwner(state);
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if (info != NULL)
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{
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arc.w->StartArray();
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arc.w->String(info->TypeName.GetChars());
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arc.w->Uint((uint32_t)(state - info->GetStates()));
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arc.w->EndArray();
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}
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else
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{
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arc.w->Null();
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}
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}
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}
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}
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else
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{
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auto val = arc.r->FindKey(key);
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if (val != nullptr)
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{
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if (val->IsNull())
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{
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if (retcode) *retcode = true;
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state = nullptr;
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}
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else if (val->IsArray())
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{
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if (retcode) *retcode = true;
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const rapidjson::Value &cls = (*val)[0];
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const rapidjson::Value &ndx = (*val)[1];
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state = nullptr;
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assert(cls.IsString() && ndx.IsUint());
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if (cls.IsString() && ndx.IsUint())
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{
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PClassActor *clas = PClass::FindActor(UnicodeToString(cls.GetString()));
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if (clas && ndx.GetUint() < (unsigned)clas->GetStateCount())
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{
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state = clas->GetStates() + ndx.GetUint();
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}
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else
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{
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// this can actually happen by changing the DECORATE so treat it as a warning, not an error.
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state = nullptr;
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Printf(TEXTCOLOR_ORANGE "Invalid state '%s+%d' for '%s'\n", cls.GetString(), ndx.GetInt(), key);
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}
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}
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else
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{
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assert(false && "not a state");
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Printf(TEXTCOLOR_RED "data does not represent a state for '%s'\n", key);
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arc.mErrors++;
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}
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}
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else if (!retcode)
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{
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assert(false && "not an array");
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Printf(TEXTCOLOR_RED "array type expected for '%s'\n", key);
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arc.mErrors++;
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}
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}
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}
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return arc;
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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template<> FSerializer &Serialize(FSerializer &arc, const char *key, FStrifeDialogueNode *&node, FStrifeDialogueNode **def)
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{
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auto doomarc = static_cast<FDoomSerializer*>(&arc);
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if (arc.isWriting())
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{
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if (!arc.w->inObject() || def == nullptr || node != *def)
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{
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arc.WriteKey(key);
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if (node == nullptr)
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{
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arc.w->Null();
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}
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else
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{
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arc.w->Uint(node->ThisNodeNum);
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}
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}
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}
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else
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{
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auto val = arc.r->FindKey(key);
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if (val != nullptr)
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{
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assert(val->IsUint() || val->IsNull());
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if (val->IsNull())
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{
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node = nullptr;
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}
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else if (val->IsUint())
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{
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if (val->GetUint() >= doomarc->Level->StrifeDialogues.Size())
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{
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node = nullptr;
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}
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else
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{
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node = doomarc->Level->StrifeDialogues[val->GetUint()];
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}
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}
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else
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{
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Printf(TEXTCOLOR_RED "integer expected for '%s'\n", key);
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arc.mErrors++;
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node = nullptr;
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}
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}
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}
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return arc;
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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template<> FSerializer &Serialize(FSerializer &arc, const char *key, FString *&pstr, FString **def)
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{
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if (arc.isWriting())
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{
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if (!arc.w->inObject() || def == nullptr || pstr != *def)
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{
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arc.WriteKey(key);
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if (pstr == nullptr)
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{
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arc.w->Null();
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}
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else
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{
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arc.w->String(pstr->GetChars());
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}
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}
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}
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else
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{
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auto val = arc.r->FindKey(key);
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if (val != nullptr)
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{
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assert(val->IsNull() || val->IsString());
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if (val->IsNull())
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{
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pstr = nullptr;
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}
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else if (val->IsString())
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{
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pstr = AActor::mStringPropertyData.Alloc(UnicodeToString(val->GetString()));
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}
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else
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{
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Printf(TEXTCOLOR_RED "string expected for '%s'\n", key);
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pstr = nullptr;
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arc.mErrors++;
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}
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}
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}
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return arc;
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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template<> FSerializer &Serialize(FSerializer &arc, const char *key, char *&pstr, char **def)
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{
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if (arc.isWriting())
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{
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if (!arc.w->inObject() || def == nullptr || strcmp(pstr, *def))
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{
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arc.WriteKey(key);
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if (pstr == nullptr)
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{
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arc.w->Null();
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}
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else
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{
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arc.w->String(pstr);
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}
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}
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}
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else
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{
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auto val = arc.r->FindKey(key);
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if (val != nullptr)
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{
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assert(val->IsNull() || val->IsString());
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if (val->IsNull())
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{
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pstr = nullptr;
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}
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else if (val->IsString())
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{
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pstr = copystring(UnicodeToString(val->GetString()));
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}
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else
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{
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Printf(TEXTCOLOR_RED "string expected for '%s'\n", key);
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pstr = nullptr;
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arc.mErrors++;
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}
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}
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}
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return arc;
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}
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//==========================================================================
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//
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// This is a bit of a cheat because it never actually writes out the pointer.
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// The rules for levels are that they must be self-contained.
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// No level and no object that is part of a level may reference a different one.
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//
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// When writing, this merely checks if the rules are obeyed and if not errors out.
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// When reading, it assumes that the object was properly written and restores
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// the reference from the owning level
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//
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// The only exception are null pointers which are allowed
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//
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//==========================================================================
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template<> FSerializer &Serialize(FSerializer &arc, const char *key, FLevelLocals *&lev, FLevelLocals **def)
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{
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auto doomarc = static_cast<FDoomSerializer*>(&arc);
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if (arc.isWriting())
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{
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if (!arc.w->inObject() || lev == nullptr)
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{
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arc.WriteKey(key);
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if (lev == nullptr)
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{
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arc.w->Null();
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}
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else
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{
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// This MUST be the currently serialized level, anything else will error out here as a sanity check.
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if (doomarc->Level == nullptr || lev != doomarc->Level)
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{
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I_Error("Attempt to serialize invalid level reference");
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}
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if (!arc.w->inObject())
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{
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arc.w->Bool(true); // In the unlikely case this is used in an array, write a filler.
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}
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}
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}
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}
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else
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{
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auto val = arc.r->FindKey(key);
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if (val != nullptr)
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{
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assert(val->IsNull() || val->IsBool());
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if (val->IsNull())
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{
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lev = nullptr;
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}
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else
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{
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lev = doomarc->Level;
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}
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}
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else lev = doomarc->Level;
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}
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return arc;
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}
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