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Diffstat (limited to 'src/osd/strconv.cpp')
-rw-r--r-- | src/osd/strconv.cpp | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/src/osd/strconv.cpp b/src/osd/strconv.cpp new file mode 100644 index 00000000000..3eedf040127 --- /dev/null +++ b/src/osd/strconv.cpp @@ -0,0 +1,141 @@ +// license:BSD-3-Clause +// copyright-holders:Aaron Giles +//============================================================ +// +// strconv.c - Win32 string conversion +// +//============================================================ + +#if defined(SDLMAME_WIN32) || defined(OSD_WINDOWS) +#define WIN32_LEAN_AND_MEAN +#include <windows.h> +#endif + +// MAMEOS headers +#include "strconv.h" +#include "unicode.h" + +#if defined(SDLMAME_WIN32) || defined(OSD_WINDOWS) +//============================================================ +// astring_from_utf8 +//============================================================ + +CHAR *astring_from_utf8(const char *utf8string) +{ + WCHAR *wstring; + int char_count; + CHAR *result; + + // convert MAME string (UTF-8) to UTF-16 + char_count = MultiByteToWideChar(CP_UTF8, 0, utf8string, -1, NULL, 0); + wstring = (WCHAR *)alloca(char_count * sizeof(*wstring)); + MultiByteToWideChar(CP_UTF8, 0, utf8string, -1, wstring, char_count); + + // convert UTF-16 to "ANSI code page" string + char_count = WideCharToMultiByte(CP_ACP, 0, wstring, -1, NULL, 0, NULL, NULL); + result = (CHAR *)osd_malloc_array(char_count * sizeof(*result)); + if (result != NULL) + WideCharToMultiByte(CP_ACP, 0, wstring, -1, result, char_count, NULL, NULL); + + return result; +} + + +//============================================================ +// utf8_from_astring +//============================================================ + +char *utf8_from_astring(const CHAR *astring) +{ + WCHAR *wstring; + int char_count; + CHAR *result; + + // convert "ANSI code page" string to UTF-16 + char_count = MultiByteToWideChar(CP_ACP, 0, astring, -1, NULL, 0); + wstring = (WCHAR *)alloca(char_count * sizeof(*wstring)); + MultiByteToWideChar(CP_ACP, 0, astring, -1, wstring, char_count); + + // convert UTF-16 to MAME string (UTF-8) + char_count = WideCharToMultiByte(CP_UTF8, 0, wstring, -1, NULL, 0, NULL, NULL); + result = (CHAR *)osd_malloc_array(char_count * sizeof(*result)); + if (result != NULL) + WideCharToMultiByte(CP_UTF8, 0, wstring, -1, result, char_count, NULL, NULL); + + return result; +} + + +//============================================================ +// wstring_from_utf8 +//============================================================ + +WCHAR *wstring_from_utf8(const char *utf8string) +{ + int char_count; + WCHAR *result; + + // convert MAME string (UTF-8) to UTF-16 + char_count = MultiByteToWideChar(CP_UTF8, 0, utf8string, -1, NULL, 0); + result = (WCHAR *)osd_malloc_array(char_count * sizeof(*result)); + if (result != NULL) + MultiByteToWideChar(CP_UTF8, 0, utf8string, -1, result, char_count); + + return result; +} + + +//============================================================ +// utf8_from_wstring +//============================================================ + +char *utf8_from_wstring(const WCHAR *wstring) +{ + int char_count; + char *result; + + // convert UTF-16 to MAME string (UTF-8) + char_count = WideCharToMultiByte(CP_UTF8, 0, wstring, -1, NULL, 0, NULL, NULL); + result = (char *)osd_malloc_array(char_count * sizeof(*result)); + if (result != NULL) + WideCharToMultiByte(CP_UTF8, 0, wstring, -1, result, char_count, NULL, NULL); + + return result; +} + +//============================================================ +// osd_uchar_from_osdchar +//============================================================ + +int osd_uchar_from_osdchar(UINT32 *uchar, const char *osdchar, size_t count) +{ + WCHAR wch; + + count = MIN(count, IsDBCSLeadByte(*osdchar) ? 2 : 1); + if (MultiByteToWideChar(CP_ACP, 0, osdchar, (DWORD)count, &wch, 1) != 0) + *uchar = wch; + else + *uchar = 0; + return (int) count; +} + +#else + +//============================================================ +// osd_uchar_from_osdchar +//============================================================ + +int osd_uchar_from_osdchar(unicode_char *uchar, const char *osdchar, size_t count) +{ + wchar_t wch; + + count = mbstowcs(&wch, (char *)osdchar, 1); + if (count != -1) + *uchar = wch; + else + *uchar = 0; + + return count; +} + +#endif |