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Location: cpp/openttd-patchpack/source/src/os/windows/win32.cpp
r27193:e816892ba57b
19.8 KiB
text/x-c
Codechange: replace strnatcmp with C++ string capable version
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* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file win32.cpp Implementation of MS Windows system calls */
#include "../../stdafx.h"
#include "../../debug.h"
#include "../../gfx_func.h"
#include "../../textbuf_gui.h"
#include "../../fileio_func.h"
#include <windows.h>
#include <fcntl.h>
#include <mmsystem.h>
#include <regstr.h>
#define NO_SHOBJIDL_SORTDIRECTION // Avoid multiple definition of SORT_ASCENDING
#include <shlobj.h> /* SHGetFolderPath */
#include <shellapi.h>
#include "win32.h"
#include "../../fios.h"
#include "../../core/alloc_func.hpp"
#include "../../string_func.h"
#include <errno.h>
#include <sys/stat.h>
#include "../../language.h"
#include "../../thread.h"
#include <array>
#include "../../safeguards.h"
static bool _has_console;
static bool _cursor_disable = true;
static bool _cursor_visible = true;
bool MyShowCursor(bool show, bool toggle)
{
if (toggle) _cursor_disable = !_cursor_disable;
if (_cursor_disable) return show;
if (_cursor_visible == show) return show;
_cursor_visible = show;
ShowCursor(show);
return !show;
}
void ShowOSErrorBox(const char *buf, bool system)
{
MyShowCursor(true);
MessageBox(GetActiveWindow(), OTTD2FS(buf).c_str(), L"Error!", MB_ICONSTOP | MB_TASKMODAL);
}
void OSOpenBrowser(const char *url)
{
ShellExecute(GetActiveWindow(), L"open", OTTD2FS(url).c_str(), nullptr, nullptr, SW_SHOWNORMAL);
}
/* Code below for windows version of opendir/readdir/closedir copied and
* modified from Jan Wassenberg's GPL implementation posted over at
* http://www.gamedev.net/community/forums/topic.asp?topic_id=364584&whichpage=1� */
struct DIR {
HANDLE hFind;
/* the dirent returned by readdir.
* note: having only one global instance is not possible because
* multiple independent opendir/readdir sequences must be supported. */
dirent ent;
WIN32_FIND_DATA fd;
/* since opendir calls FindFirstFile, we need a means of telling the
* first call to readdir that we already have a file.
* that's the case iff this is true */
bool at_first_entry;
};
/* suballocator - satisfies most requests with a reusable static instance.
* this avoids hundreds of alloc/free which would fragment the heap.
* To guarantee concurrency, we fall back to malloc if the instance is
* already in use (it's important to avoid surprises since this is such a
* low-level routine). */
static DIR _global_dir;
static LONG _global_dir_is_in_use = false;
static inline DIR *dir_calloc()
{
DIR *d;
if (InterlockedExchange(&_global_dir_is_in_use, true) == (LONG)true) {
d = CallocT<DIR>(1);
} else {
d = &_global_dir;
memset(d, 0, sizeof(*d));
}
return d;
}
static inline void dir_free(DIR *d)
{
if (d == &_global_dir) {
_global_dir_is_in_use = (LONG)false;
} else {
free(d);
}
}
DIR *opendir(const wchar_t *path)
{
DIR *d;
UINT sem = SetErrorMode(SEM_FAILCRITICALERRORS); // disable 'no-disk' message box
DWORD fa = GetFileAttributes(path);
if ((fa != INVALID_FILE_ATTRIBUTES) && (fa & FILE_ATTRIBUTE_DIRECTORY)) {
d = dir_calloc();
if (d != nullptr) {
std::wstring search_path = path;
bool slash = path[wcslen(path) - 1] == '\\';
/* build search path for FindFirstFile, try not to append additional slashes
* as it throws Win9x off its groove for root directories */
if (!slash) search_path += L"\\";
search_path += L"*";
d->hFind = FindFirstFile(search_path.c_str(), &d->fd);
if (d->hFind != INVALID_HANDLE_VALUE ||
GetLastError() == ERROR_NO_MORE_FILES) { // the directory is empty
d->ent.dir = d;
d->at_first_entry = true;
} else {
dir_free(d);
d = nullptr;
}
} else {
errno = ENOMEM;
}
} else {
/* path not found or not a directory */
d = nullptr;
errno = ENOENT;
}
SetErrorMode(sem); // restore previous setting
return d;
}
struct dirent *readdir(DIR *d)
{
DWORD prev_err = GetLastError(); // avoid polluting last error
if (d->at_first_entry) {
/* the directory was empty when opened */
if (d->hFind == INVALID_HANDLE_VALUE) return nullptr;
d->at_first_entry = false;
} else if (!FindNextFile(d->hFind, &d->fd)) { // determine cause and bail
if (GetLastError() == ERROR_NO_MORE_FILES) SetLastError(prev_err);
return nullptr;
}
/* This entry has passed all checks; return information about it.
* (note: d_name is a pointer; see struct dirent definition) */
d->ent.d_name = d->fd.cFileName;
return &d->ent;
}
int closedir(DIR *d)
{
FindClose(d->hFind);
dir_free(d);
return 0;
}
bool FiosIsRoot(const char *file)
{
return file[3] == '\0'; // C:\...
}
void FiosGetDrives(FileList &file_list)
{
wchar_t drives[256];
const wchar_t *s;
GetLogicalDriveStrings(lengthof(drives), drives);
for (s = drives; *s != '\0';) {
FiosItem *fios = &file_list.emplace_back();
fios->type = FIOS_TYPE_DRIVE;
fios->mtime = 0;
seprintf(fios->name, lastof(fios->name), "%c:", s[0] & 0xFF);
strecpy(fios->title, fios->name, lastof(fios->title));
while (*s++ != '\0') { /* Nothing */ }
}
}
bool FiosIsValidFile(const char *path, const struct dirent *ent, struct stat *sb)
{
/* hectonanoseconds between Windows and POSIX epoch */
static const int64 posix_epoch_hns = 0x019DB1DED53E8000LL;
const WIN32_FIND_DATA *fd = &ent->dir->fd;
sb->st_size = ((uint64) fd->nFileSizeHigh << 32) + fd->nFileSizeLow;
/* UTC FILETIME to seconds-since-1970 UTC
* we just have to subtract POSIX epoch and scale down to units of seconds.
* http://www.gamedev.net/community/forums/topic.asp?topic_id=294070&whichpage=1�
* XXX - not entirely correct, since filetimes on FAT aren't UTC but local,
* this won't entirely be correct, but we use the time only for comparison. */
sb->st_mtime = (time_t)((*(const uint64*)&fd->ftLastWriteTime - posix_epoch_hns) / 1E7);
sb->st_mode = (fd->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)? S_IFDIR : S_IFREG;
return true;
}
bool FiosIsHiddenFile(const struct dirent *ent)
{
return (ent->dir->fd.dwFileAttributes & (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM)) != 0;
}
bool FiosGetDiskFreeSpace(const char *path, uint64 *tot)
{
UINT sem = SetErrorMode(SEM_FAILCRITICALERRORS); // disable 'no-disk' message box
ULARGE_INTEGER bytes_free;
bool retval = GetDiskFreeSpaceEx(OTTD2FS(path).c_str(), &bytes_free, nullptr, nullptr);
if (retval && tot != nullptr) *tot = bytes_free.QuadPart;
SetErrorMode(sem); // reset previous setting
return retval;
}
void CreateConsole()
{
HANDLE hand;
CONSOLE_SCREEN_BUFFER_INFO coninfo;
if (_has_console) return;
_has_console = true;
if (!AllocConsole()) return;
hand = GetStdHandle(STD_OUTPUT_HANDLE);
GetConsoleScreenBufferInfo(hand, &coninfo);
coninfo.dwSize.Y = 500;
SetConsoleScreenBufferSize(hand, coninfo.dwSize);
/* redirect unbuffered STDIN, STDOUT, STDERR to the console */
#if !defined(__CYGWIN__)
/* Check if we can open a handle to STDOUT. */
int fd = _open_osfhandle((intptr_t)hand, _O_TEXT);
if (fd == -1) {
/* Free everything related to the console. */
FreeConsole();
_has_console = false;
_close(fd);
CloseHandle(hand);
ShowInfo("Unable to open an output handle to the console. Check known-bugs.txt for details.");
return;
}
#if defined(_MSC_VER) && _MSC_VER >= 1900
freopen("CONOUT$", "a", stdout);
freopen("CONIN$", "r", stdin);
freopen("CONOUT$", "a", stderr);
#else
*stdout = *_fdopen(fd, "w");
*stdin = *_fdopen(_open_osfhandle((intptr_t)GetStdHandle(STD_INPUT_HANDLE), _O_TEXT), "r" );
*stderr = *_fdopen(_open_osfhandle((intptr_t)GetStdHandle(STD_ERROR_HANDLE), _O_TEXT), "w" );
#endif
#else
/* open_osfhandle is not in cygwin */
*stdout = *fdopen(1, "w" );
*stdin = *fdopen(0, "r" );
*stderr = *fdopen(2, "w" );
#endif
setvbuf(stdin, nullptr, _IONBF, 0);
setvbuf(stdout, nullptr, _IONBF, 0);
setvbuf(stderr, nullptr, _IONBF, 0);
}
/** Temporary pointer to get the help message to the window */
static const char *_help_msg;
/** Callback function to handle the window */
static INT_PTR CALLBACK HelpDialogFunc(HWND wnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
switch (msg) {
case WM_INITDIALOG: {
char help_msg[8192];
const char *p = _help_msg;
char *q = help_msg;
while (q != lastof(help_msg) && *p != '\0') {
if (*p == '\n') {
*q++ = '\r';
if (q == lastof(help_msg)) {
q[-1] = '\0';
break;
}
}
*q++ = *p++;
}
*q = '\0';
/* We need to put the text in a separate buffer because the default
* buffer in OTTD2FS might not be large enough (512 chars). */
wchar_t help_msg_buf[8192];
SetDlgItemText(wnd, 11, convert_to_fs(help_msg, help_msg_buf, lengthof(help_msg_buf)));
SendDlgItemMessage(wnd, 11, WM_SETFONT, (WPARAM)GetStockObject(ANSI_FIXED_FONT), FALSE);
} return TRUE;
case WM_COMMAND:
if (wParam == 12) ExitProcess(0);
return TRUE;
case WM_CLOSE:
ExitProcess(0);
}
return FALSE;
}
void ShowInfoI(const std::string &str)
{
if (_has_console) {
fprintf(stderr, "%s\n", str.c_str());
} else {
bool old;
ReleaseCapture();
_left_button_clicked = _left_button_down = false;
old = MyShowCursor(true);
if (str.size() > 2048) {
/* The minimum length of the help message is 2048. Other messages sent via
* ShowInfo are much shorter, or so long they need this way of displaying
* them anyway. */
_help_msg = str.c_str();
DialogBox(GetModuleHandle(nullptr), MAKEINTRESOURCE(101), nullptr, HelpDialogFunc);
} else {
/* We need to put the text in a separate buffer because the default
* buffer in OTTD2FS might not be large enough (512 chars). */
wchar_t help_msg_buf[8192];
MessageBox(GetActiveWindow(), convert_to_fs(str, help_msg_buf, lengthof(help_msg_buf)), L"OpenTTD", MB_ICONINFORMATION | MB_OK);
}
MyShowCursor(old);
}
}
char *getcwd(char *buf, size_t size)
{
wchar_t path[MAX_PATH];
GetCurrentDirectory(MAX_PATH - 1, path);
convert_from_fs(path, buf, size);
return buf;
}
extern std::string _config_file;
void DetermineBasePaths(const char *exe)
{
extern std::array<std::string, NUM_SEARCHPATHS> _searchpaths;
wchar_t path[MAX_PATH];
#ifdef WITH_PERSONAL_DIR
if (SUCCEEDED(SHGetFolderPath(nullptr, CSIDL_PERSONAL, nullptr, SHGFP_TYPE_CURRENT, path))) {
std::string tmp(FS2OTTD(path));
AppendPathSeparator(tmp);
tmp += PERSONAL_DIR;
AppendPathSeparator(tmp);
_searchpaths[SP_PERSONAL_DIR] = tmp;
tmp += "content_download";
AppendPathSeparator(tmp);
_searchpaths[SP_AUTODOWNLOAD_PERSONAL_DIR] = tmp;
} else {
_searchpaths[SP_PERSONAL_DIR].clear();
}
if (SUCCEEDED(SHGetFolderPath(nullptr, CSIDL_COMMON_DOCUMENTS, nullptr, SHGFP_TYPE_CURRENT, path))) {
std::string tmp(FS2OTTD(path));
AppendPathSeparator(tmp);
tmp += PERSONAL_DIR;
AppendPathSeparator(tmp);
_searchpaths[SP_SHARED_DIR] = tmp;
} else {
_searchpaths[SP_SHARED_DIR].clear();
}
#else
_searchpaths[SP_PERSONAL_DIR].clear();
_searchpaths[SP_SHARED_DIR].clear();
#endif
if (_config_file.empty()) {
char cwd[MAX_PATH];
getcwd(cwd, lengthof(cwd));
std::string cwd_s(cwd);
AppendPathSeparator(cwd_s);
_searchpaths[SP_WORKING_DIR] = cwd_s;
} else {
/* Use the folder of the config file as working directory. */
wchar_t config_dir[MAX_PATH];
wcsncpy(path, convert_to_fs(_config_file, path, lengthof(path)), lengthof(path));
if (!GetFullPathName(path, lengthof(config_dir), config_dir, nullptr)) {
Debug(misc, 0, "GetFullPathName failed ({})", GetLastError());
_searchpaths[SP_WORKING_DIR].clear();
} else {
std::string tmp(FS2OTTD(config_dir));
auto pos = tmp.find_last_of(PATHSEPCHAR);
if (pos != std::string::npos) tmp.erase(pos + 1);
_searchpaths[SP_WORKING_DIR] = tmp;
}
}
if (!GetModuleFileName(nullptr, path, lengthof(path))) {
Debug(misc, 0, "GetModuleFileName failed ({})", GetLastError());
_searchpaths[SP_BINARY_DIR].clear();
} else {
wchar_t exec_dir[MAX_PATH];
wcsncpy(path, convert_to_fs(exe, path, lengthof(path)), lengthof(path));
if (!GetFullPathName(path, lengthof(exec_dir), exec_dir, nullptr)) {
Debug(misc, 0, "GetFullPathName failed ({})", GetLastError());
_searchpaths[SP_BINARY_DIR].clear();
} else {
std::string tmp(FS2OTTD(exec_dir));
auto pos = tmp.find_last_of(PATHSEPCHAR);
if (pos != std::string::npos) tmp.erase(pos + 1);
_searchpaths[SP_BINARY_DIR] = tmp;
}
}
_searchpaths[SP_INSTALLATION_DIR].clear();
_searchpaths[SP_APPLICATION_BUNDLE_DIR].clear();
}
bool GetClipboardContents(char *buffer, const char *last)
{
HGLOBAL cbuf;
const char *ptr;
if (IsClipboardFormatAvailable(CF_UNICODETEXT)) {
OpenClipboard(nullptr);
cbuf = GetClipboardData(CF_UNICODETEXT);
ptr = (const char*)GlobalLock(cbuf);
int out_len = WideCharToMultiByte(CP_UTF8, 0, (LPCWSTR)ptr, -1, buffer, (last - buffer) + 1, nullptr, nullptr);
GlobalUnlock(cbuf);
CloseClipboard();
if (out_len == 0) return false;
} else {
return false;
}
return true;
}
/**
* Convert to OpenTTD's encoding from a wide string.
* OpenTTD internal encoding is UTF8.
* @param name valid string that will be converted (local, or wide)
* @return converted string; if failed string is of zero-length
* @see the current code-page comes from video\win32_v.cpp, event-notification
* WM_INPUTLANGCHANGE
*/
std::string FS2OTTD(const std::wstring &name)
{
int name_len = (name.length() >= INT_MAX) ? INT_MAX : (int)name.length();
int len = WideCharToMultiByte(CP_UTF8, 0, name.c_str(), name_len, nullptr, 0, nullptr, nullptr);
if (len <= 0) return std::string();
std::string utf8_buf(len, '\0'); // len includes terminating null
WideCharToMultiByte(CP_UTF8, 0, name.c_str(), name_len, utf8_buf.data(), len, nullptr, nullptr);
return utf8_buf;
}
/**
* Convert from OpenTTD's encoding to a wide string.
* OpenTTD internal encoding is UTF8.
* @param name valid string that will be converted (UTF8)
* @param console_cp convert to the console encoding instead of the normal system encoding.
* @return converted string; if failed string is of zero-length
*/
std::wstring OTTD2FS(const std::string &name)
{
int name_len = (name.length() >= INT_MAX) ? INT_MAX : (int)name.length();
int len = MultiByteToWideChar(CP_UTF8, 0, name.c_str(), name_len, nullptr, 0);
if (len <= 0) return std::wstring();
std::wstring system_buf(len, L'\0'); // len includes terminating null
MultiByteToWideChar(CP_UTF8, 0, name.c_str(), name_len, system_buf.data(), len);
return system_buf;
}
/**
* Convert to OpenTTD's encoding from that of the environment in
* UNICODE. OpenTTD encoding is UTF8, local is wide.
* @param name pointer to a valid string that will be converted
* @param utf8_buf pointer to a valid buffer that will receive the converted string
* @param buflen length in characters of the receiving buffer
* @return pointer to utf8_buf. If conversion fails the string is of zero-length
*/
char *convert_from_fs(const wchar_t *name, char *utf8_buf, size_t buflen)
{
/* Convert UTF-16 string to UTF-8. */
int len = WideCharToMultiByte(CP_UTF8, 0, name, -1, utf8_buf, (int)buflen, nullptr, nullptr);
if (len == 0) utf8_buf[0] = '\0';
return utf8_buf;
}
/**
* Convert from OpenTTD's encoding to that of the environment in
* UNICODE. OpenTTD encoding is UTF8, local is wide.
* @param name pointer to a valid string that will be converted
* @param system_buf pointer to a valid wide-char buffer that will receive the
* converted string
* @param buflen length in wide characters of the receiving buffer
* @param console_cp convert to the console encoding instead of the normal system encoding.
* @return pointer to system_buf. If conversion fails the string is of zero-length
*/
wchar_t *convert_to_fs(const std::string_view name, wchar_t *system_buf, size_t buflen)
{
int len = MultiByteToWideChar(CP_UTF8, 0, name.data(), (int)name.size(), system_buf, (int)buflen);
system_buf[len] = '\0';
return system_buf;
}
/** Determine the current user's locale. */
const char *GetCurrentLocale(const char *)
{
const LANGID userUiLang = GetUserDefaultUILanguage();
const LCID userUiLocale = MAKELCID(userUiLang, SORT_DEFAULT);
char lang[9], country[9];
if (GetLocaleInfoA(userUiLocale, LOCALE_SISO639LANGNAME, lang, lengthof(lang)) == 0 ||
GetLocaleInfoA(userUiLocale, LOCALE_SISO3166CTRYNAME, country, lengthof(country)) == 0) {
/* Unable to retrieve the locale. */
return nullptr;
}
/* Format it as 'en_us'. */
static char retbuf[6] = {lang[0], lang[1], '_', country[0], country[1], 0};
return retbuf;
}
static WCHAR _cur_iso_locale[16] = L"";
void Win32SetCurrentLocaleName(const char *iso_code)
{
/* Convert the iso code into the format that windows expects. */
char iso[16];
if (strcmp(iso_code, "zh_TW") == 0) {
strecpy(iso, "zh-Hant", lastof(iso));
} else if (strcmp(iso_code, "zh_CN") == 0) {
strecpy(iso, "zh-Hans", lastof(iso));
} else {
/* Windows expects a '-' between language and country code, but we use a '_'. */
strecpy(iso, iso_code, lastof(iso));
for (char *c = iso; *c != '\0'; c++) {
if (*c == '_') *c = '-';
}
}
MultiByteToWideChar(CP_UTF8, 0, iso, -1, _cur_iso_locale, lengthof(_cur_iso_locale));
}
int OTTDStringCompare(std::string_view s1, std::string_view s2)
{
typedef int (WINAPI *PFNCOMPARESTRINGEX)(LPCWSTR, DWORD, LPCWCH, int, LPCWCH, int, LPVOID, LPVOID, LPARAM);
static PFNCOMPARESTRINGEX _CompareStringEx = nullptr;
static bool first_time = true;
#ifndef SORT_DIGITSASNUMBERS
# define SORT_DIGITSASNUMBERS 0x00000008 // use digits as numbers sort method
#endif
#ifndef LINGUISTIC_IGNORECASE
# define LINGUISTIC_IGNORECASE 0x00000010 // linguistically appropriate 'ignore case'
#endif
if (first_time) {
static DllLoader _kernel32(L"Kernel32.dll");
_CompareStringEx = _kernel32.GetProcAddress("CompareStringEx");
first_time = false;
}
if (_CompareStringEx != nullptr) {
/* CompareStringEx takes UTF-16 strings, even in ANSI-builds. */
int len_s1 = MultiByteToWideChar(CP_UTF8, 0, s1.data(), (int)s1.size(), nullptr, 0);
int len_s2 = MultiByteToWideChar(CP_UTF8, 0, s2.data(), (int)s2.size(), nullptr, 0);
if (len_s1 != 0 && len_s2 != 0) {
std::wstring str_s1(len_s1, L'\0'); // len includes terminating null
std::wstring str_s2(len_s2, L'\0');
MultiByteToWideChar(CP_UTF8, 0, s1.data(), (int)s1.size(), str_s1.data(), len_s1);
MultiByteToWideChar(CP_UTF8, 0, s2.data(), (int)s2.size(), str_s2.data(), len_s2);
int result = _CompareStringEx(_cur_iso_locale, LINGUISTIC_IGNORECASE | SORT_DIGITSASNUMBERS, str_s1.c_str(), -1, str_s2.c_str(), -1, nullptr, nullptr, 0);
if (result != 0) return result;
}
}
wchar_t s1_buf[512], s2_buf[512];
convert_to_fs(s1, s1_buf, lengthof(s1_buf));
convert_to_fs(s2, s2_buf, lengthof(s2_buf));
return CompareString(MAKELCID(_current_language->winlangid, SORT_DEFAULT), NORM_IGNORECASE, s1_buf, -1, s2_buf, -1);
}
#ifdef _MSC_VER
/* Based on code from MSDN: https://msdn.microsoft.com/en-us/library/xcb2z8hs.aspx */
const DWORD MS_VC_EXCEPTION = 0x406D1388;
PACK_N(struct THREADNAME_INFO {
DWORD dwType; ///< Must be 0x1000.
LPCSTR szName; ///< Pointer to name (in user addr space).
DWORD dwThreadID; ///< Thread ID (-1=caller thread).
DWORD dwFlags; ///< Reserved for future use, must be zero.
}, 8);
/**
* Signal thread name to any attached debuggers.
*/
void SetCurrentThreadName(const char *threadName)
{
THREADNAME_INFO info;
info.dwType = 0x1000;
info.szName = threadName;
info.dwThreadID = -1;
info.dwFlags = 0;
#pragma warning(push)
#pragma warning(disable: 6320 6322)
__try {
RaiseException(MS_VC_EXCEPTION, 0, sizeof(info) / sizeof(ULONG_PTR), (ULONG_PTR*)&info);
} __except (EXCEPTION_EXECUTE_HANDLER) {
}
#pragma warning(pop)
}
#else
void SetCurrentThreadName(const char *) {}
#endif
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