295 lines
8.1 KiB
C++
295 lines
8.1 KiB
C++
#include "../VTUtils.hpp"
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#if defined(LIBCMO_OS_WIN32)
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#define ZLIB_WINAPI
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#endif
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#include <zconf.h>
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#include <zlib.h>
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#include "CKGlobals.hpp"
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#include <algorithm>
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#include "ObjImpls/CKObject.hpp"
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#include "ObjImpls/CKSceneObject.hpp"
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#include "ObjImpls/CKBeObject.hpp"
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#include "ObjImpls/CKGroup.hpp"
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#include "ObjImpls/CKRenderObject.hpp"
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#include "ObjImpls/CK3dEntity.hpp"
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#include "ObjImpls/CK3dObject.hpp"
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#include "ObjImpls/CKTexture.hpp"
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#include "ObjImpls/CKMaterial.hpp"
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namespace LibCmo::CK2 {
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#pragma region Compression utilities
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void* CKPackData(const void* Data, CKDWORD size, CKDWORD& NewSize, CKINT compressionlevel) {
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uLong boundary = compressBound(static_cast<uLong>(size));
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char* DestBuffer = new char[boundary];
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uLongf _destLen = static_cast<uLongf>(boundary);
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if (compress2(
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reinterpret_cast<Bytef*>(DestBuffer), &_destLen,
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reinterpret_cast<const Bytef*>(Data), static_cast<uLong>(size),
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static_cast<int>(compressionlevel)) != Z_OK) {
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NewSize = 0;
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delete[] DestBuffer;
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return nullptr;
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}
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NewSize = static_cast<CKDWORD>(_destLen);
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return DestBuffer;
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}
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void* CKUnPackData(CKDWORD DestSize, const void* SrcBuffer, CKDWORD SrcSize) {
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char* DestBuffer = new char[DestSize];
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uLongf cache = DestSize;
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if (uncompress(
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reinterpret_cast<Bytef*>(DestBuffer), &cache,
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reinterpret_cast<const Bytef*>(SrcBuffer), static_cast<uLong>(SrcSize)) != Z_OK) {
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delete[] DestBuffer;
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return nullptr;
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}
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return DestBuffer;
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}
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CKDWORD CKComputeDataCRC(const void* data, CKDWORD size, CKDWORD PreviousCRC) {
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return static_cast<CKDWORD>(adler32(
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static_cast<uLong>(PreviousCRC),
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reinterpret_cast<const Bytef*>(data),
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static_cast<uInt>(size)
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));
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}
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#pragma endregion
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#pragma region String Utilities
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bool CKStrEqual(CKSTRING str1, CKSTRING str2) {
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if (str1 == nullptr) {
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if (str2 == nullptr) return true;
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else return false;
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} else {
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if (str2 == nullptr) return false;
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else {
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return std::strcmp(str1, str2) == 0;
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}
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}
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}
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bool CKStrEqualI(CKSTRING str1, CKSTRING str2) {
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if (str1 == nullptr) {
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if (str2 == nullptr) return true;
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else return false;
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} else {
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if (str2 == nullptr) return false;
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else {
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// do real cmp
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size_t i = 0;
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while (str1[i] != '\0' && str2[i] != '\0') {
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if (std::tolower(str1[i]) != std::tolower(str2[i])) return false;
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++str1;
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++str2;
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}
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// !XOR the result, if both of them is zero, return true(1)
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return !((str1[i] != '\0') ^ (str2[i] != '\0'));
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}
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}
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}
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bool CKStrEmpty(CKSTRING strl) {
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if (strl == nullptr) return true;
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return strl[0] == '\0';
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}
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#pragma endregion
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#pragma region CKClass Registration
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static XContainer::XArray<CKClassDesc> g_CKClassInfo;
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CK_CLASSID CKClassGetNewIdentifier() {
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size_t classsize = g_CKClassInfo.size();
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if (classsize < static_cast<size_t>(CK_CLASSID::CKCID_MAXCLASSID)) {
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return CK_CLASSID::CKCID_MAXCLASSID;
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} else {
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return static_cast<CK_CLASSID>(classsize);
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}
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}
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static void ComputeParentsTable(CKClassDesc& desc) {
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// if it has done, do not process it again.
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if (desc.Done) return;
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// find direct parent
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CKClassDesc& parent = g_CKClassInfo[static_cast<size_t>(desc.Parent)];
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if (!parent.IsValid) LIBPANIC("No such CK_CLASSID.");
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// if it is not self inheritance, call recursively
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if (desc.Self != desc.Parent) {
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ComputeParentsTable(parent);
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}
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// copy parent's parents
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desc.Parents = parent.Parents;
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// and set self as its parent
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desc.Parents[static_cast<size_t>(desc.Self)] = true;
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// set derivation level
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desc.DerivationLevel = parent.DerivationLevel + 1;
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// set done
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desc.Done = true;
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}
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static void CKBuildClassHierarchyTable() {
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// set Done to false and resize all XBitArray
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size_t classCount = g_CKClassInfo.size();
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for (auto& item : g_CKClassInfo) {
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if (!item.IsValid) continue;
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item.Done = false;
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item.Parents.resize(classCount, false);
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item.Children.resize(classCount, false);
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}
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// compute parents
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for (auto& item : g_CKClassInfo) {
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if (!item.IsValid) continue;
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ComputeParentsTable(item);
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}
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// compute children by parents table
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// iterate CKClassDesc::Parents and register it self to gotten parents
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for (auto& item : g_CKClassInfo) {
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if (!item.IsValid) continue;
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for (size_t idx = 0; idx < classCount; ++idx) {
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if (!g_CKClassInfo[idx].IsValid) continue;
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// if this idx is its parent,
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// add self to parent.
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if (item.Parents[idx]) {
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g_CKClassInfo[idx].Children[static_cast<size_t>(item.Self)] = true;
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}
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}
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}
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}
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void CKClassRegister(CK_CLASSID cid, CK_CLASSID parentCid,
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CKClassCreationFct createFct, CKClassReleaseFct relFct, CKClassNameFct nameFct) {
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// resize class desc array
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size_t intcid = static_cast<size_t>(cid);
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if (intcid >= g_CKClassInfo.size()) {
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g_CKClassInfo.resize(intcid + 1);
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}
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// emplace desc
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CKClassDesc desc;
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desc.IsValid = true;
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desc.Self = cid;
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desc.Parent = parentCid;
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desc.CreationFct = createFct;
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desc.ReleaseFct = relFct;
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desc.NameFct = nameFct;
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g_CKClassInfo[intcid] = std::move(desc);
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}
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#pragma endregion
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#pragma region Class Hierarchy Management
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static bool GetClassIdIndex(CK_CLASSID cid, size_t& intcid) {
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intcid = static_cast<size_t>(cid);
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if (intcid >= g_CKClassInfo.size()) return false;
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if (!g_CKClassInfo[intcid].IsValid) return false;
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return true;
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}
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CKDWORD CKGetClassCount() {
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return static_cast<CKDWORD>(g_CKClassInfo.size());
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}
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const CKClassDesc* CKGetClassDesc(CK_CLASSID cid) {
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size_t intcid;
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if (!GetClassIdIndex(cid, intcid)) return nullptr;
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return &g_CKClassInfo[intcid];
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}
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CKSTRING CKClassIDToString(CK_CLASSID cid) {
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const CKClassDesc* desc = CKGetClassDesc(cid);
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if (desc == nullptr) return "Undefined Type";
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else return desc->NameFct();
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}
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bool CKIsChildClassOf(CK_CLASSID child, CK_CLASSID parent) {
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size_t intchild, intparent;
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if (!GetClassIdIndex(child, intchild) || !GetClassIdIndex(parent, intparent)) return false;
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return g_CKClassInfo[intchild].Parents[intparent];
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}
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CK_CLASSID CKGetParentClassID(CK_CLASSID child) {
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const CKClassDesc* desc = CKGetClassDesc(child);
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if (desc == nullptr) return CK_CLASSID::CKCID_OBJECT;
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return desc->Parent;
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}
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CK_CLASSID CKGetCommonParent(CK_CLASSID cid1, CK_CLASSID cid2) {
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// I don't know algorithm, I just copy the decompiled code.
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while (true) {
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if (CKIsChildClassOf(cid1, cid2)) return cid2;
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if (CKIsChildClassOf(cid2, cid1)) break;
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cid2 = CKGetParentClassID(cid1);
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cid1 = cid2;
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}
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return cid1;
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}
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#pragma endregion
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#pragma region Initializations functions
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CKERROR CKStartUp() {
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// reserve class info array.
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g_CKClassInfo.reserve(static_cast<size_t>(CK_CLASSID::CKCID_MAXCLASSID));
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// todo: add class type registrations
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#define EasyClassReg(clsname, cid, parentCid, strName) \
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CKClassRegister(cid, parentCid, \
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[](CKContext* ctx, CK_ID id, CKSTRING name) -> ObjImpls::CKObject* { return new clsname(ctx, id, name); }, \
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[](CKContext* ctx, ObjImpls::CKObject* obj) -> void { delete obj; }, \
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[]() -> CKSTRING { return strName; });
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EasyClassReg(ObjImpls::CKObject, CK_CLASSID::CKCID_OBJECT, CK_CLASSID::CKCID_OBJECT, "Basic Object");
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EasyClassReg(ObjImpls::CKSceneObject, CK_CLASSID::CKCID_SCENEOBJECT, CK_CLASSID::CKCID_OBJECT, "Scene Object");
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EasyClassReg(ObjImpls::CKBeObject, CK_CLASSID::CKCID_BEOBJECT, CK_CLASSID::CKCID_SCENEOBJECT, "Behavioral Object");
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EasyClassReg(ObjImpls::CKGroup, CK_CLASSID::CKCID_GROUP, CK_CLASSID::CKCID_BEOBJECT, "Group");
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EasyClassReg(ObjImpls::CKRenderObject, CK_CLASSID::CKCID_RENDEROBJECT, CK_CLASSID::CKCID_BEOBJECT, "Render Object");
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EasyClassReg(ObjImpls::CK3dEntity, CK_CLASSID::CKCID_3DENTITY, CK_CLASSID::CKCID_RENDEROBJECT, "3D Entity");
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EasyClassReg(ObjImpls::CK3dObject, CK_CLASSID::CKCID_3DOBJECT, CK_CLASSID::CKCID_3DENTITY, "3D Object");
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EasyClassReg(ObjImpls::CKTexture, CK_CLASSID::CKCID_TEXTURE, CK_CLASSID::CKCID_BEOBJECT, "Texture");
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EasyClassReg(ObjImpls::CKMaterial, CK_CLASSID::CKCID_MATERIAL, CK_CLASSID::CKCID_BEOBJECT, "Material");
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#undef EasyClassReg
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CKBuildClassHierarchyTable();
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return CKERROR::CKERR_OK;
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}
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CKERROR CKShutdown() {
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// free class indo
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g_CKClassInfo.clear();
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return CKERROR::CKERR_OK;
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}
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#pragma endregion
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}
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