summaryrefslogtreecommitdiffstatshomepage
path: root/src/osd/windows/strconv.c
blob: 0af5fe9c2a347b2f55f6e8754ea063bc3751aebd (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
//============================================================
//
//  strconv.c - Win32 string conversion
//
//============================================================
//
//  Copyright Aaron Giles
//  All rights reserved.
//
//  Redistribution and use in source and binary forms, with or
//  without modification, are permitted provided that the
//  following conditions are met:
//
//    * Redistributions of source code must retain the above
//      copyright notice, this list of conditions and the
//      following disclaimer.
//    * Redistributions in binary form must reproduce the
//      above copyright notice, this list of conditions and
//      the following disclaimer in the documentation and/or
//      other materials provided with the distribution.
//    * Neither the name 'MAME' nor the names of its
//      contributors may be used to endorse or promote
//      products derived from this software without specific
//      prior written permission.
//
//  THIS SOFTWARE IS PROVIDED BY AARON GILES ''AS IS'' AND
//  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
//  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
//  FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
//  EVENT SHALL AARON GILES BE LIABLE FOR ANY DIRECT,
//  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
//  DAMAGE (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
//  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
//  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
//  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
//  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
//  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
//  IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
//============================================================

// standard windows headers
#define WIN32_LEAN_AND_MEAN
#include <windows.h>

// MAMEOS headers
#include "strconv.h"
#include "unicode.h"


//============================================================
//  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;
}