diff options
Diffstat (limited to 'windows.c')
| -rw-r--r-- | windows.c | 93 |
1 files changed, 93 insertions, 0 deletions
@@ -4,6 +4,11 @@ #include "display.h" #include <windows.h> #include <shlobj.h> +#include <stdio.h> +#include <fcntl.h> +#include <assert.h> +#include <dirent.h> +#include <zip.h> const char system_divelist_default_font[] = "Sans 8"; @@ -78,3 +83,91 @@ int enumerate_devices (device_callback_t callback, void *userdata) RegCloseKey(hKey); return index; } + +/* this function converts a utf-8 string to win32's utf-16 2 byte string. + * the caller function should manage the allocated memory. + */ +static wchar_t *utf8_to_utf16_fl(const char *utf8, char *file, int line) +{ + assert(utf8 != NULL); + assert(file != NULL); + assert(line); + /* estimate buffer size */ + const int sz = strlen(utf8) + 1; + wchar_t *utf16 = (wchar_t *)malloc(sizeof(wchar_t) * sz); + if (!utf16) { + fprintf(stderr, "%s:%d: %s %d.", file, line, "cannot allocate buffer of size", sz); + return NULL; + } + if (MultiByteToWideChar(CP_UTF8, 0, utf8, -1, utf16, sz)) + return utf16; + fprintf(stderr, "%s:%d: %s", file, line, "cannot convert string."); + free((void *)utf16); + return NULL; +} + +#define utf8_to_utf16(s) utf8_to_utf16_fl(s, __FILE__, __LINE__) + +/* bellow we provide a set of wrappers for some I/O functions to use wchar_t. + * on win32 this solves the issue that we need paths to be utf-16 encoded. + */ +int subsurface_open(const char *path, int oflags, mode_t mode) +{ + int ret = -1; + wchar_t *wpath = utf8_to_utf16(path); + if (wpath) { + ret = _wopen(wpath, oflags, mode); + free((void *)wpath); + return ret; + } + return ret; +} + +FILE *subsurface_fopen(const char *path, const char *mode) +{ + FILE *ret = NULL; + wchar_t *wpath = utf8_to_utf16(path); + if (wpath) { + const int len = strlen(mode); + wchar_t wmode[len + 1]; + for (int i = 0; i < len; i++) + wmode[i] = (wchar_t)mode[i]; + wmode[len] = 0; + ret = _wfopen(wpath, wmode); + free((void *)wpath); + return ret; + } + return ret; +} + +/* here we return a void pointer instead of _WDIR or DIR pointer */ +void *subsurface_opendir(const char *path) +{ + _WDIR *ret = NULL; + wchar_t *wpath = utf8_to_utf16(path); + if (wpath) { + ret = _wopendir(wpath); + free((void *)wpath); + return (void *)ret; + } + return (void *)ret; +} + +#ifndef O_BINARY +#define O_BINARY 0 +#endif + +/* we use zip_fdopen since zip_open doesn't have a wchar_t version */ +struct zip *subsurface_zip_open_readonly(const char *path, int flags, int *errorp) +{ + int fd = subsurface_open(path, O_RDONLY | O_BINARY, 0); + struct zip *ret = zip_fdopen(fd, flags, errorp); + if (!ret) + close(fd); + return ret; +} + +int subsurface_zip_close(struct zip *zip) +{ + return zip_close(zip); +} |