mirror of
https://github.com/HIllya51/LunaHook.git
synced 2024-11-27 07:44:02 +08:00
293 lines
7.7 KiB
C++
293 lines
7.7 KiB
C++
#include "MinHook.h"
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DynamicShiftJISCodec *dynamiccodec = new DynamicShiftJISCodec(932);
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void cast_back(const HookParam &hp, void *data, size_t *len, const std::wstring &trans, bool normal)
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{
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if ((hp.type & EMBED_CODEC_UTF16) || (hp.type & CODEC_UTF16))
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{ // renpy
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write_string_overwrite(data, len, trans);
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}
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else
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{
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std::string astr;
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if (hp.type & EMBED_DYNA_SJIS && !normal)
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{
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astr = dynamiccodec->encodeSTD(trans, 0);
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}
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else
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{
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astr = WideStringToString(trans, hp.codepage ? hp.codepage : ((hp.type & CODEC_UTF8) ? CP_UTF8 : embedsharedmem->codepage));
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}
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write_string_overwrite(data, len, astr);
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}
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}
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struct FunctionInfo
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{
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const char *name; // for debugging purpose
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uintptr_t *oldFunction,
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newFunction;
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bool attached;
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uintptr_t addr;
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explicit FunctionInfo(const uintptr_t _addr = 0, const char *name = "", uintptr_t *oldFunction = nullptr, uintptr_t newFunction = 0,
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bool attached = false)
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: name(name), oldFunction(oldFunction), newFunction(newFunction), attached(attached), addr(_addr)
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{
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}
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};
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std::unordered_map<uintptr_t, FunctionInfo> funcs; // attached functions
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std::vector<uintptr_t> replacedfuns; // attached functions
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bool _1f()
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{
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#define ADD_FUN(_f) funcs[F_##_f] = FunctionInfo((uintptr_t)_f, #_f, (uintptr_t *)&Hijack::old##_f, (uintptr_t)Hijack::new##_f);
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ADD_FUN(CreateFontA)
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ADD_FUN(CreateFontW)
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ADD_FUN(CreateFontIndirectA)
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ADD_FUN(CreateFontIndirectW)
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ADD_FUN(GetGlyphOutlineA)
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ADD_FUN(GetGlyphOutlineW)
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ADD_FUN(GetTextExtentPoint32A)
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ADD_FUN(GetTextExtentPoint32W)
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ADD_FUN(GetTextExtentExPointA)
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ADD_FUN(GetTextExtentExPointW)
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// ADD_FUN(GetCharABCWidthsA)
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// ADD_FUN(GetCharABCWidthsW)
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ADD_FUN(TextOutA)
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ADD_FUN(TextOutW)
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ADD_FUN(ExtTextOutA)
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ADD_FUN(ExtTextOutW)
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ADD_FUN(DrawTextA)
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ADD_FUN(DrawTextW)
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ADD_FUN(DrawTextExA)
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ADD_FUN(DrawTextExW)
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ADD_FUN(CharNextA)
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// ADD_FUN(CharNextW)
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// ADD_FUN(CharNextExA)
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// ADD_FUN(CharNextExW)
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ADD_FUN(CharPrevA)
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// ADD_FUN(CharPrevW)
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ADD_FUN(MultiByteToWideChar)
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ADD_FUN(WideCharToMultiByte)
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#undef ADD_FUN
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return 0;
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}
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bool _1 = _1f();
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bool ReplaceFunction(PVOID oldf, PVOID newf, PVOID *pOrigin)
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{
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PVOID oldx;
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if (!pOrigin)
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pOrigin = &oldx;
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RemoveHook((uintptr_t)oldf);
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if (MH_OK == MH_CreateHook(oldf, newf, pOrigin))
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return MH_OK == MH_EnableHook(oldf);
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else
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{
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MH_RemoveHook(oldf);
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return false;
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}
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}
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void attachFunction(uintptr_t _hook_font_flag)
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{
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for (auto &_func : funcs)
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{
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if (_func.first & _hook_font_flag)
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{
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if (_func.second.attached)
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continue;
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if (ReplaceFunction((PVOID)_func.second.addr, (PVOID)_func.second.newFunction, (PVOID *)_func.second.oldFunction))
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{
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_func.second.attached = true;
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replacedfuns.push_back(_func.first);
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}
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}
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}
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}
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void detachall()
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{
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for (auto _flag : replacedfuns)
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{
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auto info = funcs.at(_flag);
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if (MH_OK == MH_DisableHook((LPVOID)info.addr))
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MH_RemoveHook((LPVOID)info.addr);
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}
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}
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void solvefont(HookParam hp)
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{
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if (hp.hook_font)
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{
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attachFunction(hp.hook_font);
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}
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if (hp.hook_font & F_MultiByteToWideChar)
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disable_mbwc = true;
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if (hp.hook_font & F_WideCharToMultiByte)
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disable_wcmb = true;
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if (auto current_patch_fun = patch_fun.exchange(nullptr))
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{
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current_patch_fun();
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dont_detach = true;
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}
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}
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static std::wstring alwaysInsertSpacesSTD(const std::wstring &text)
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{
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std::wstring ret;
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for (auto c : text)
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{
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ret.push_back(c);
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if (c >= 32) // ignore non-printable characters
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ret.push_back(L' '); // or insert \u3000 if needed
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}
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return ret;
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}
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bool charEncodableSTD(const wchar_t &ch, UINT codepage)
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{
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if (ch <= 127) // ignore ascii characters
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return true;
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std::wstring s;
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s.push_back(ch);
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return StringToWideString(WideStringToString(s, codepage), codepage).value() == s;
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}
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static std::wstring insertSpacesAfterUnencodableSTD(const std::wstring &text, HookParam hp)
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{
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std::wstring ret;
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for (const wchar_t &c : text)
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{
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ret.push_back(c);
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if (!charEncodableSTD(c, hp.codepage ? hp.codepage : embedsharedmem->codepage))
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ret.push_back(L' ');
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}
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return ret;
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}
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std::wstring adjustSpacesSTD(const std::wstring &text, HookParam hp)
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{
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switch (embedsharedmem->spaceadjustpolicy)
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{
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case 0:
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return text;
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case 1:
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return alwaysInsertSpacesSTD(text);
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case 2:
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return insertSpacesAfterUnencodableSTD(text, hp);
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default:
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return text;
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}
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}
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bool isPauseKeyPressed()
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{
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return WinKey::isKeyControlPressed() || WinKey::isKeyShiftPressed() && !WinKey::isKeyReturnPressed();
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}
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inline UINT64 djb2_n2(const unsigned char *str, size_t len, UINT64 hash = 5381)
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{
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int i = 0;
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while (len--)
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{
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hash = ((hash << 5) + hash) + (*str++); // hash * 33 + c
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}
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return hash;
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}
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std::unordered_map<UINT64, std::wstring> translatecache;
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bool check_is_thread_selected(const ThreadParam &tp)
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{
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for (int i = 0; i < 10; i++)
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if (embedsharedmem->use[i])
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if ((embedsharedmem->addr[i] == tp.addr) && (embedsharedmem->ctx1[i] == tp.ctx) && (embedsharedmem->ctx2[i] == tp.ctx2))
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return true;
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return false;
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}
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bool check_embed_able(const ThreadParam &tp)
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{
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return host_connected && check_is_thread_selected(tp) && ((isPauseKeyPressed() == false) ? true : !embedsharedmem->fastskipignore);
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}
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bool waitforevent(UINT32 timems, const ThreadParam &tp, const std::wstring &origin)
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{
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char eventname[1000];
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sprintf(eventname, LUNA_EMBED_notify_event, GetCurrentProcessId(), djb2_n2((const unsigned char *)(origin.c_str()), origin.size() * 2));
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auto event = win_event(eventname);
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while (timems)
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{
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if (check_embed_able(tp) == false)
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return false;
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auto sleepstep = min(100, timems);
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if (event.wait(sleepstep))
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return true;
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timems -= sleepstep;
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}
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return false;
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}
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void TextHook::parsenewlineseperator(void *data, size_t *len)
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{
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if (!(hp.newlineseperator))
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return;
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if (hp.type & CODEC_UTF16)
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{
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StringCharReplacer((wchar_t *)data, len, hp.newlineseperator, wcslen(hp.newlineseperator), L'\n');
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}
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else if (hp.type & CODEC_UTF32)
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return;
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else
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{
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// ansi/utf8，newlineseperator都是简单字符
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std::string newlineseperatorA;
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for (int i = 0; i < wcslen(hp.newlineseperator); i++)
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newlineseperatorA += (char)hp.newlineseperator[i];
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StringCharReplacer((char *)data, len, newlineseperatorA.c_str(), newlineseperatorA.size(), '\n');
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}
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}
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UINT64 texthash(void *data, size_t len)
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{
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UINT64 sum = 0;
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auto u8data = (UINT8 *)data;
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for (int i = 0; i < len; i++)
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{
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sum += u8data[i];
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sum = sum << 1;
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}
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return sum;
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}
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bool checktranslatedok(void *data, size_t len)
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{
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ZeroMemory(embedsharedmem->text, sizeof(embedsharedmem->text)); // clear trans before call
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if (len > 1000)
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return true;
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return (translatecache.find(texthash(data, len)) != translatecache.end());
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}
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bool TextHook::waitfornotify(TextOutput_T *buffer, void *data, size_t *len, ThreadParam tp)
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{
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std::wstring origin;
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if (auto t = commonparsestring(data, *len, &hp, embedsharedmem->codepage))
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origin = t.value();
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else
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return false;
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std::wstring translate;
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auto hash = texthash(data, *len);
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if (translatecache.find(hash) != translatecache.end())
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{
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translate = translatecache.at(hash);
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}
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else
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{
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if (waitforevent(embedsharedmem->waittime, tp, origin) == false)
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return false;
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translate = embedsharedmem->text;
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if ((translate.size() == 0))
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return false;
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translatecache.insert(std::make_pair(hash, translate));
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}
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if (hp.newlineseperator)
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strReplace(translate, L"\n", hp.newlineseperator);
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translate = adjustSpacesSTD(translate, hp);
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if (embedsharedmem->keeprawtext)
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translate = origin + L" " + translate;
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solvefont(hp);
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cast_back(hp, data, len, translate, false);
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return true;
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} |