libcmo21/LibCmo/CK2/CKStateChunk.cpp

805 lines
22 KiB
C++

#include "CKStateChunk.hpp"
#include "CKFile.hpp"
#include "CKContext.hpp"
namespace LibCmo::CK2 {
#pragma region Ctor Dtor
//CKStateChunk::CKStateChunk() :
// m_ClassId(CK_CLASSID::CKCID_OBJECT), m_DataDwSize(0u), m_pData(nullptr),
// m_DataVersion(CK_STATECHUNK_DATAVERSION::CHUNKDATA_CURRENTVERSION), m_ChunkVersion(CK_STATECHUNK_CHUNKVERSION::CHUNK_VERSION4),
// m_Parser{ CKStateChunkStatus::IDLE, 0u, 0u, 0u },
// m_ObjectList(), m_ChunkList(), m_ManagerList(),
// m_BindDoc(nullptr), m_BindContext(nullptr)
//{
// ;
//}
CKStateChunk::CKStateChunk(CKFileVisitor* visitor, CKContext* ctx) :
m_ClassId(CK_CLASSID::CKCID_OBJECT), m_DataDwSize(0u), m_pData(nullptr),
m_DataVersion(CK_STATECHUNK_DATAVERSION::CHUNKDATA_CURRENTVERSION), m_ChunkVersion(CK_STATECHUNK_CHUNKVERSION::CHUNK_VERSION4),
m_Parser{ CKStateChunkStatus::IDLE, 0u, 0u, 0u },
m_ObjectList(), m_ChunkList(), m_ManagerList(),
m_BindFile(visitor), m_BindContext(ctx)
{}
CKStateChunk::CKStateChunk(const CKStateChunk& rhs) :
m_ClassId(rhs.m_ClassId), m_DataVersion(rhs.m_DataVersion), m_ChunkVersion(rhs.m_ChunkVersion),
m_Parser(rhs.m_Parser),
m_ObjectList(rhs.m_ObjectList), m_ManagerList(rhs.m_ManagerList), m_ChunkList(rhs.m_ChunkList),
m_pData(nullptr), m_DataDwSize(rhs.m_DataDwSize),
m_BindFile(rhs.m_BindFile), m_BindContext(rhs.m_BindContext) {
// copy buffer
if (rhs.m_pData != nullptr) {
this->m_pData = new(std::nothrow) CKDWORD[rhs.m_DataDwSize];
if (this->m_pData != nullptr) {
std::memcpy(this->m_pData, rhs.m_pData, sizeof(CKDWORD) * rhs.m_DataDwSize);
}
}
}
CKStateChunk& CKStateChunk::operator=(const CKStateChunk& rhs) {
this->Clear();
this->m_DataVersion = rhs.m_DataVersion;
this->m_ChunkVersion = rhs.m_ChunkVersion;
this->m_ClassId = rhs.m_ClassId;
this->m_Parser = rhs.m_Parser;
this->m_ObjectList = rhs.m_ObjectList;
this->m_ManagerList = rhs.m_ManagerList;
this->m_ChunkList = rhs.m_ChunkList;
this->m_BindFile = rhs.m_BindFile;
this->m_BindContext = rhs.m_BindContext;
// copy buffer
if (rhs.m_pData != nullptr) {
this->m_pData = new(std::nothrow) CKDWORD[rhs.m_DataDwSize];
if (this->m_pData != nullptr) {
std::memcpy(this->m_pData, rhs.m_pData, sizeof(CKDWORD) * rhs.m_DataDwSize);
}
}
this->m_DataDwSize = rhs.m_DataDwSize;
return *this;
}
CKStateChunk::~CKStateChunk() {
if (this->m_pData != nullptr)
delete[] this->m_pData;
}
#pragma endregion
#pragma region Misc Funcs
void CKStateChunk::Clear(void) {
this->m_ClassId = CK_CLASSID::CKCID_OBJECT;
this->m_DataVersion = CK_STATECHUNK_DATAVERSION::CHUNK_DEV_2_1;
this->m_ChunkVersion = CK_STATECHUNK_CHUNKVERSION::CHUNK_VERSION4;
this->m_Parser.m_CurrentPos = 0;
this->m_Parser.m_DataSize = 0;
this->m_Parser.m_PrevIdentifierPos = 0;
this->m_DataDwSize = 0;
if (this->m_pData != nullptr) {
delete[] this->m_pData;
this->m_pData = nullptr;
}
this->m_ObjectList.clear();
this->m_ManagerList.clear();
this->m_ChunkList.clear();
}
CKDWORD CKStateChunk::GetDataSize(void) {
return sizeof(CKDWORD) * this->m_DataDwSize;
}
CK_STATECHUNK_DATAVERSION CKStateChunk::GetDataVersion() {
return this->m_DataVersion;
}
void CKStateChunk::SetDataVersion(CK_STATECHUNK_DATAVERSION version) {
this->m_DataVersion = version;
}
void CKStateChunk::DeleteBuffer(void* buf) {
if (buf == nullptr) return;
delete[] reinterpret_cast<char*>(buf);
}
bool CKStateChunk::Skip(CKDWORD DwordCount) {
bool result;
switch (this->m_Parser.m_Status) {
case CKStateChunkStatus::READ:
result = EnsureReadSpace(DwordCount);
break;
case CKStateChunkStatus::WRITE:
result = EnsureWriteSpace(DwordCount);
break;
case CKStateChunkStatus::IDLE:
default:
result = false;
break;
}
// if success, move cursor
if (result) {
this->m_Parser.m_CurrentPos += DwordCount;
}
return result;
}
size_t CKStateChunk::GetCeilDwordSize(size_t char_size) {
return (char_size + 3) >> 2;
}
bool CKStateChunk::ResizeBuffer(CKDWORD new_dwsize) {
if (new_dwsize == 0u) {
// if reuqired size is zero, we just delete it
if (this->m_pData != nullptr) {
delete[] this->m_pData;
this->m_pData = nullptr;
}
} else {
// otherwise, we create a new buffer instead it
CKDWORD* newbuf = new(std::nothrow) CKDWORD[new_dwsize];
if (newbuf == nullptr) return false; // if fail to create, return
// if no original data, we do not need copy it and free it
if (this->m_pData != nullptr) {
std::memcpy(newbuf, this->m_pData, sizeof(CKDWORD) * new_dwsize);
delete[] this->m_pData;
}
// assign new buffer
this->m_pData = newbuf;
}
return true;
}
bool CKStateChunk::EnsureWriteSpace(CKDWORD dwsize) {
if (this->m_Parser.m_Status != CKStateChunkStatus::WRITE) return false;
// check whether need enlarge
CKDWORD needed = dwsize + this->m_Parser.m_CurrentPos;
if (needed > this->m_Parser.m_DataSize) {
// add a very enough space to buffer
if (dwsize < 512) dwsize = 512;
needed = dwsize + this->m_Parser.m_CurrentPos;
// try resizing it
if (!this->ResizeBuffer(needed)) return false;
// update size
this->m_Parser.m_DataSize = needed;
}
return true;
}
bool CKStateChunk::EnsureReadSpace(CKDWORD dword_required) {
return (m_Parser.m_Status == CKStateChunkStatus::READ) &&
(this->m_Parser.m_CurrentPos + dword_required <= this->m_Parser.m_DataSize);
}
#pragma endregion
#pragma region Buffer Related
bool CKStateChunk::ConvertFromBuffer(const void* buf) {
if (buf == nullptr) return false;
// read chunk ver and data ver first
// chunk ver always set in the 3rd BYTE in every format
this->m_ChunkVersion = static_cast<CK_STATECHUNK_CHUNKVERSION>(
reinterpret_cast<const char*>(buf)[2]
);
// data ver always set in the 1st BYTE in every format
this->m_DataVersion = static_cast<CK_STATECHUNK_DATAVERSION>(
reinterpret_cast<const char*>(buf)[0]
);
// switch according to chunk ver
const CKDWORD* dwbuf = reinterpret_cast<const CKDWORD*>(buf);
size_t bufpos = 0u;
if (this->m_ChunkVersion < CK_STATECHUNK_CHUNKVERSION::CHUNK_VERSION2) {
// very old file
this->m_ClassId = static_cast<CK_CLASSID>(dwbuf[1]);
this->m_DataDwSize = dwbuf[2];
this->m_ObjectList.resize(dwbuf[4]);
this->m_ChunkList.resize(dwbuf[5]);
bufpos = 6u;
if (this->m_DataDwSize != 0) {
this->m_pData = new(std::nothrow) CKDWORD[this->m_DataDwSize];
if (m_pData == nullptr) return false;
std::memcpy(this->m_pData, dwbuf + bufpos, sizeof(CKDWORD) * this->m_DataDwSize);
bufpos += this->m_DataDwSize;
}
if (!this->m_ObjectList.empty()) {
std::memcpy(this->m_ObjectList.data(), dwbuf + bufpos, sizeof(CKDWORD) * this->m_ObjectList.size());
bufpos += this->m_ObjectList.size();
}
if (!this->m_ChunkList.empty()) {
std::memcpy(this->m_ChunkList.data(), dwbuf + bufpos, sizeof(CKDWORD) * this->m_ChunkList.size());
bufpos += this->m_ChunkList.size();
}
} else if (this->m_ChunkVersion == CK_STATECHUNK_CHUNKVERSION::CHUNK_VERSION2) {
// medium ver file
this->m_ClassId = static_cast<CK_CLASSID>(dwbuf[1]);
this->m_DataDwSize = dwbuf[2];
this->m_ObjectList.resize(dwbuf[4]);
this->m_ChunkList.resize(dwbuf[5]);
this->m_ManagerList.resize(dwbuf[6]);
bufpos = 7u;
if (this->m_DataDwSize != 0) {
this->m_pData = new(std::nothrow) CKDWORD[this->m_DataDwSize];
if (m_pData == nullptr) return false;
std::memcpy(this->m_pData, dwbuf + bufpos, sizeof(CKDWORD) * this->m_DataDwSize);
bufpos += this->m_DataDwSize;
}
if (!this->m_ObjectList.empty()) {
std::memcpy(this->m_ObjectList.data(), dwbuf + bufpos, sizeof(CKDWORD) * this->m_ObjectList.size());
bufpos += this->m_ObjectList.size();
}
if (!this->m_ChunkList.empty()) {
std::memcpy(this->m_ChunkList.data(), dwbuf + bufpos, sizeof(CKDWORD) * this->m_ChunkList.size());
bufpos += this->m_ChunkList.size();
}
if (!this->m_ManagerList.empty()) {
std::memcpy(this->m_ManagerList.data(), dwbuf + bufpos, sizeof(CKDWORD) * this->m_ManagerList.size());
bufpos += this->m_ManagerList.size();
}
} else if (this->m_ChunkVersion <= CK_STATECHUNK_CHUNKVERSION::CHUNK_VERSION4) {
// the latest file
// re-read some extra data
// class id located the 2nd BYTE
this->m_ClassId = static_cast<CK_CLASSID>(
reinterpret_cast<const char*>(buf)[1]
);
// options located the 4th BYTE
CK_STATECHUNK_CHUNKOPTIONS options = static_cast<CK_STATECHUNK_CHUNKOPTIONS>(
reinterpret_cast<const char*>(buf)[3]
);
// read normal data
this->m_DataDwSize = dwbuf[1];
bufpos = 2u;
if (this->m_DataDwSize != 0) {
this->m_pData = new(std::nothrow) CKDWORD[this->m_DataDwSize];
if (m_pData == nullptr) return false;
std::memcpy(this->m_pData, dwbuf + bufpos, sizeof(CKDWORD) * this->m_DataDwSize);
bufpos += this->m_DataDwSize;
}
if (EnumsHelper::Has(options, CK_STATECHUNK_CHUNKOPTIONS::CHNK_OPTION_FILE)) {
// MARK: set ckfile = nullptr;
;
}
if (EnumsHelper::Has(options, CK_STATECHUNK_CHUNKOPTIONS::CHNK_OPTION_IDS)) {
this->m_ObjectList.resize(dwbuf[bufpos]);
bufpos += 1u;
std::memcpy(this->m_ObjectList.data(), dwbuf + bufpos, sizeof(CKDWORD) * this->m_ObjectList.size());
bufpos += this->m_ObjectList.size();
}
if (EnumsHelper::Has(options, CK_STATECHUNK_CHUNKOPTIONS::CHNK_OPTION_CHN)) {
this->m_ChunkList.resize(dwbuf[bufpos]);
bufpos += 1u;
std::memcpy(this->m_ChunkList.data(), dwbuf + bufpos, sizeof(CKDWORD) * this->m_ChunkList.size());
bufpos += this->m_ChunkList.size();
}
if (EnumsHelper::Has(options, CK_STATECHUNK_CHUNKOPTIONS::CHNK_OPTION_MAN)) {
this->m_ManagerList.resize(dwbuf[bufpos]);
bufpos += 1u;
std::memcpy(this->m_ManagerList.data(), dwbuf + bufpos, sizeof(CKDWORD) * this->m_ManagerList.size());
bufpos += this->m_ManagerList.size();
}
} else {
// too new. can not read, skip
;
}
return true;
}
CKDWORD CKStateChunk::ConvertToBuffer(void* buf) {
return 0u;
}
#pragma endregion
//bool CKStateChunk::UnPack(CKDWORD DestSize) {
// // NOTE: in UnPack. pData store the compressed buffer, and
// // dwSize store the length of compressed buffer as CHAR size, not DWORD size!
// // create a enough buffer
// char* buffer = new(std::nothrow) char[DestSize];
// if (buffer == nullptr) return false;
// uLongf destSize = DestSize;
// // uncompress it
// auto err = uncompress(
// reinterpret_cast<Bytef*>(buffer), &destSize,
// reinterpret_cast<const Bytef*>(this->m_pData), static_cast<uLong>(this->m_DataDwSize)
// );
// // if no error, assign data
// if (err == Z_OK) {
// // get dw size and copy it to remove useless blank data
// this->m_DataDwSize = static_cast<CKDWORD>(destSize) / sizeof(CKDWORD);
// delete[] this->m_pData;
// this->m_pData = nullptr;
// this->m_pData = new(std::nothrow) CKDWORD[this->m_DataDwSize];
// if (this->m_pData != nullptr) {
// std::memcpy(this->m_pData, buffer, this->m_DataDwSize * sizeof(CKDWORD));
// }
// }
// delete[] buffer;
// return true;
//}
#pragma region Read Functions
void CKStateChunk::StartRead(void) {
if (this->m_Parser.m_Status != CKStateChunkStatus::IDLE) return;
this->m_Parser.m_CurrentPos = 0u;
this->m_Parser.m_DataSize = this->m_DataDwSize;
this->m_Parser.m_PrevIdentifierPos = 0u;
this->m_Parser.m_Status = CKStateChunkStatus::READ;
}
void CKStateChunk::StopRead(void) {
if (this->m_Parser.m_Status != CKStateChunkStatus::READ) return;
this->m_Parser.m_CurrentPos = 0u;
this->m_Parser.m_DataSize = this->m_DataDwSize;
this->m_Parser.m_PrevIdentifierPos = 0u;
this->m_Parser.m_Status = CKStateChunkStatus::IDLE;
}
/* ========== Identifier Functions ==========*/
bool CKStateChunk::SeekIdentifierDword(CKDWORD identifier) {
CKDWORD cache;
return SeekIdentifierDwordAndReturnSize(identifier, &cache);
}
bool CKStateChunk::SeekIdentifierDwordAndReturnSize(CKDWORD identifier, CKDWORD* out_size) {
if (this->m_Parser.m_Status != CKStateChunkStatus::READ) return false;
CKDWORD pos = 0u;
if (this->m_DataDwSize < 2u) return false; // impossible to have a identifier
// search identifier
while (this->m_pData[pos] != identifier) {
pos = this->m_pData[pos + 1];
if (pos == 0u) return false; // got tail. no more identifier
if (pos + 1 >= this->m_DataDwSize) return false; // out of buffer
}
// got identifier
this->m_Parser.m_PrevIdentifierPos = pos;
this->m_Parser.m_CurrentPos = pos + 2;
// calc size
CKDWORD nextptr = this->m_pData[pos + 1];
if (nextptr == 0) {
// the last identifier, use chunk size instead
nextptr = this->m_DataDwSize;
}
*out_size = sizeof(CKDWORD) * (nextptr - pos - 2u);
return true;
}
/* ========== Basic Data Read Functions ==========*/
bool CKStateChunk::ReadByteData(void* data_ptr, CKDWORD size_in_byte) {
if (this->m_Parser.m_Status != CKStateChunkStatus::READ) return false;
if (data_ptr == nullptr) return false;
CKDWORD size_in_dword = this->GetCeilDwordSize(size_in_byte);
if (this->EnsureReadSpace(size_in_dword)) {
std::memcpy(data_ptr, this->m_pData + this->m_Parser.m_CurrentPos, size_in_byte);
return true;
} else {
// failed, report to context
m_BindContext->OutputToConsoleEx("CKStateChunk read length error at %" PRIckDWORD ".", this->m_Parser.m_CurrentPos);
return false;
}
}
bool CKStateChunk::ReadString(std::string* strl) {
if (strl == nullptr) return false;
// get byte based size
CKDWORD strByteSize = 0u;
if (!this->ReadStruct(strByteSize)) {
strl->clear();
return false;
}
// read data
strl->resize(strByteSize);
if (!this->ReadByteData(strl->data(), strByteSize)) {
strl->clear();
return false;
}
return true;
}
/* ========== Complex Data Read Functions ==========*/
bool CKStateChunk::ReadObjectID(CK_ID* id) {
if (id == nullptr) return false;
// get basic value
CKINT gotten_id = 0;
if (!this->ReadStruct(gotten_id)) return false;
// different strategy according to chunk ver
if (this->m_ChunkVersion >= CK_STATECHUNK_CHUNKVERSION::CHUNK_VERSION1) {
// new file
// if no doc associated, return directly
if (this->m_BindFile == nullptr) {
*id = static_cast<CK_ID>(gotten_id);
return true;
}
// if it is positive, return corresponding value
if (gotten_id >= 0) {
*id = this->m_BindFile->GetFileObjectByIndex(gotten_id)->CreatedObjectId;
return true;
}
} else {
// old file
// i don't know why I need skip 2 DWORD
// just copy IDA code.
if (gotten_id) {
this->Skip(2);
return this->ReadStruct(id);
}
}
// all failed
*id = 0u;
return false;
}
bool CKStateChunk::ReadManagerInt(CKGUID* guid, CKINT* intval) {
if (guid == nullptr || intval == nullptr) return false;
// read guid first
if (!this->ReadStruct(guid)) return false;
// then read int value
if (!this->ReadStruct(intval)) return false;
return true;
}
CKStateChunk* CKStateChunk::ReadSubChunk(void) {
CKStateChunk* subchunk = nullptr;
// get size and do a enough space check
CKDWORD subChunkSize;
if (!this->ReadStruct(subChunkSize)) goto subchunk_defer;
if (!this->EnsureReadSpace(subChunkSize)) goto subchunk_defer;
// create statechunk
subchunk = new(std::nothrow) CKStateChunk(this->m_BindFile, this->m_BindContext);
if (subchunk == nullptr) goto subchunk_defer;
// start read data
// read class id
if (!this->ReadStruct(subchunk->m_ClassId)) goto subchunk_defer;
// different read strategy by chunk version
if (this->m_ChunkVersion >= CK_STATECHUNK_CHUNKVERSION::CHUNK_VERSION1) {
// new file
// read combined version
CKDWORD versionInfo;
if (!this->ReadStruct(versionInfo)) goto subchunk_defer;
subchunk->m_DataVersion = static_cast<CK_STATECHUNK_DATAVERSION>(versionInfo & 0xffff);
subchunk->m_ChunkVersion = static_cast<CK_STATECHUNK_CHUNKVERSION>((versionInfo >> 16) & 0xffff);
// read data size and create it
if (!this->ReadStruct(subchunk->m_DataDwSize)) goto subchunk_defer;
subchunk->m_pData = new(std::nothrow) CKDWORD[subchunk->m_DataDwSize];
if (subchunk->m_pData == nullptr) goto subchunk_defer;
// has bind file?
CKDWORD hasBindFile;
if (!this->ReadStruct(hasBindFile)) goto subchunk_defer;
if (hasBindFile == 1) subchunk->m_BindFile = nullptr;
// 3 list size
// manager only existed when ver > 4
CKDWORD lssize;
if (!this->ReadStruct(lssize)) goto subchunk_defer;
subchunk->m_ObjectList.resize(lssize);
if (!this->ReadStruct(lssize)) goto subchunk_defer;
subchunk->m_ChunkList.resize(lssize);
if (this->m_ChunkVersion > CK_STATECHUNK_CHUNKVERSION::CHUNK_VERSION1) {
if (!this->ReadStruct(lssize)) goto subchunk_defer;
subchunk->m_ManagerList.resize(lssize);
}
// core data
if (subchunk->m_DataDwSize != 0) {
if (!this->ReadByteData(subchunk->m_pData, subchunk->m_DataDwSize * sizeof(CKDWORD))) goto subchunk_defer;
}
// 3 list data
if (!subchunk->m_ObjectList.empty()) {
if (!this->ReadByteData(
subchunk->m_ObjectList.data(),
subchunk->m_ObjectList.size() * sizeof(CKDWORD)
)) goto subchunk_defer;
}
if (!subchunk->m_ChunkList.empty()) {
if (!this->ReadByteData(
subchunk->m_ChunkList.data(),
subchunk->m_ChunkList.size() * sizeof(CKDWORD)
)) goto subchunk_defer;
}
if (!subchunk->m_ManagerList.empty()) {
if (!this->ReadByteData(
subchunk->m_ManagerList.data(),
subchunk->m_ManagerList.size() * sizeof(CKDWORD)
)) goto subchunk_defer;
}
} else {
// old file
// read data size and create it
if (!this->ReadStruct(subchunk->m_DataDwSize)) goto subchunk_defer;
subchunk->m_pData = new(std::nothrow) CKDWORD[subchunk->m_DataDwSize];
if (subchunk->m_pData == nullptr) goto subchunk_defer;
// skip one?
// I don't know why
this->Skip(1u);
// read core buf
if (!this->ReadByteData(subchunk->m_pData, subchunk->m_DataDwSize * sizeof(CKDWORD))) goto subchunk_defer;
}
return subchunk;
subchunk_defer:
if (subchunk != nullptr) delete subchunk;
return nullptr;
}
/* ========== Buffer Functions ==========*/
bool CKStateChunk::ReadNoSizeBuffer(CKDWORD size_in_byte, void* allocatedBuf) {
if (allocatedBuf == nullptr) return false;
return this->ReadByteData(allocatedBuf, size_in_byte);
}
bool CKStateChunk::ReadBuffer(void** buf, CKDWORD* len_in_byte) {
if (buf == nullptr || len_in_byte == nullptr) return false;
// get buffer size.
CKDWORD bufByteSize = 0u;
if (!this->ReadStruct(bufByteSize)) {
*buf = nullptr;
*len_in_byte = 0;
return false;
}
*len_in_byte = bufByteSize;
// create buffer
*buf = new(std::nothrow) char[bufByteSize];
if (*buf == nullptr) {
*len_in_byte = 0;
return false;
}
// read data
if (!this->ReadByteData(*buf, bufByteSize)) {
this->DeleteBuffer(*buf);
*buf = nullptr;
*len_in_byte = 0;
return false;
}
return true;
}
/* ========== Sequence Functions ==========*/
bool CKStateChunk::ReadObjectIDSequence(std::vector<CK_ID>* ls) {
if (ls == nullptr) return false;
ls->clear();
// read count
CKDWORD count;
if (!this->ReadStruct(count)) return false;
// resize list and read it
ls->resize(count);
for (size_t i = 0; i < count; ++i) {
if (!this->ReadObjectID(ls->data() + i)) {
ls->clear();
return false;
}
}
return true;
}
bool CKStateChunk::ReadManagerIntSequence(CKGUID* guid, std::vector<CKINT>* ls) {
if (guid == nullptr || ls == nullptr) return false;
// read count
CKDWORD count;
if (!this->ReadStruct(count)) return false;
// read guid
if (!this->ReadStruct(guid)) return false;
// resize list and read it
ls->resize(count);
for (size_t i = 0; i < count; ++i) {
if (!this->ReadStruct(ls->data() + i)) {
ls->clear();
return false;
}
}
return true;
}
bool CKStateChunk::ReadSubChunkSequence(std::vector<CKStateChunk*>* ls) {
if (ls == nullptr) return false;
// clear first
for (auto& item : *ls) {
if (item != nullptr)
delete (item);
}
ls->clear();
// read count
CKDWORD count;
if (!this->ReadStruct(count)) return false;
// resize list and read it
ls->resize(count, nullptr);
for (size_t i = 0; i < count; ++i) {
(*ls)[i] = this->ReadSubChunk();
if ((*ls)[i] == nullptr) {
// fail. remove all created statechunk and clear it
for (auto& item : *ls) {
if (item != nullptr)
delete (item);
}
ls->clear();
// return
return false;
}
}
return true;
}
bool CKStateChunk::ReadObjectArray(std::vector<CK_ID>* ls) {
if (ls == nullptr) return false;
ls->clear();
// read count
CKDWORD count;
if (!this->ReadStruct(count)) return false;
if (!count) return true; // 0 size array
// old file size correction
if (this->m_ChunkVersion < CK_STATECHUNK_CHUNKVERSION::CHUNK_VERSION1) {
// skip 4. but I don't know why!!!
this->Skip(4);
if (!this->ReadStruct(count)) return false;
}
// resize list and read
ls->resize(count);
for (auto& id : *ls) {
// read ID first
CKINT cache;
if (!this->ReadStruct(cache)) {
ls->clear();
return false;
}
// remap id
if (this->m_BindFile != nullptr) {
if (cache < 0) {
id = 0u;
} else {
id = this->m_BindFile->GetFileObjectByIndex(cache)->CreatedObjectId;
}
} else {
id = static_cast<CK_ID>(cache);
}
}
return true;
}
#pragma endregion
#pragma region Write Functions
void CKStateChunk::StartWrite() {
if (this->m_Parser.m_Status != CKStateChunkStatus::IDLE) return;
// delete all current buffer
if (this->m_pData != nullptr) {
delete[] this->m_pData;
this->m_pData = nullptr;
}
this->m_DataDwSize = 0u;
// reset parser
this->m_Parser.m_CurrentPos = 0u;
this->m_Parser.m_DataSize = this->m_DataDwSize;
this->m_Parser.m_PrevIdentifierPos = 0u;
// force chunk version
this->m_ChunkVersion = CK_STATECHUNK_CHUNKVERSION::CHUNK_VERSION4;
// switch status
this->m_Parser.m_Status = CKStateChunkStatus::WRITE;
}
void CKStateChunk::StopWrite(void) {
if (this->m_Parser.m_Status != CKStateChunkStatus::WRITE) return;
// update buffer size
this->m_DataDwSize = this->m_Parser.m_CurrentPos;
// shrink it
ResizeBuffer(this->m_DataDwSize);
// shrink 3 vector also
this->m_ObjectList.shrink_to_fit();
this->m_ManagerList.shrink_to_fit();
this->m_ChunkList.shrink_to_fit();
// reset parser
this->m_Parser.m_CurrentPos = 0u;
this->m_Parser.m_DataSize = this->m_DataDwSize;
this->m_Parser.m_PrevIdentifierPos = 0u;
this->m_Parser.m_Status = CKStateChunkStatus::IDLE;
}
#pragma endregion
}