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ntdll: Generate a Windows format codepage table using the libwine data. 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2019-11-26 17:53:51 +01:00
parent c0ff49061f
commit ea20035272
1 changed files with 93 additions and 1 deletions
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94
dlls/ntdll/locale.c
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@ -234,6 +234,88 @@ static NTSTATUS open_nls_data_file( ULONG type, ULONG id, HANDLE *file )
}
static USHORT *build_cptable( const union cptable *src, SIZE_T *size )
{
unsigned int i, leadbytes = 0;
USHORT *data, *ptr;
*size = 13 + 1 + 256 + 1 + 1 + 1;
if (src->info.char_size == 2)
{
for (i = leadbytes = 0; i < 256; i++) if (src->dbcs.cp2uni_leadbytes[i]) leadbytes++;
*size += 256 + 256 * leadbytes;
*size += 65536;
*size *= sizeof(USHORT);
}
else
{
if (src->sbcs.cp2uni_glyphs != src->sbcs.cp2uni) *size += 256;
*size *= sizeof(USHORT);
*size += 65536;
}
if (!(data = RtlAllocateHeap( GetProcessHeap(), 0, *size ))) return NULL;
ptr = data;
ptr[0] = 0x0d;
ptr[1] = src->info.codepage;
ptr[2] = src->info.char_size;
ptr[3] = (src->info.def_char & 0xff00 ?
RtlUshortByteSwap( src->info.def_char ) : src->info.def_char);
ptr[4] = src->info.def_unicode_char;
if (src->info.char_size == 2)
{
USHORT off = src->dbcs.cp2uni_leadbytes[src->info.def_char >> 8] * 256;
ptr[5] = src->dbcs.cp2uni[off + (src->info.def_char & 0xff)];
ptr[6] = src->dbcs.uni2cp_low[src->dbcs.uni2cp_high[src->info.def_unicode_char >> 8]
+ (src->info.def_unicode_char & 0xff)];
ptr += 7;
memcpy( ptr, src->dbcs.lead_bytes, 12 );
ptr += 6;
*ptr++ = 256 + 3 + (leadbytes + 1) * 256;
for (i = 0; i < 256; i++) *ptr++ = (src->dbcs.cp2uni_leadbytes[i] ? 0 : src->dbcs.cp2uni[i]);
*ptr++ = 0;
for (i = 0; i < 12; i++) if (!src->dbcs.lead_bytes[i]) break;
*ptr++ = i / 2;
for (i = 0; i < 256; i++) *ptr++ = 256 * src->dbcs.cp2uni_leadbytes[i];
for (i = 0; i < leadbytes; i++, ptr += 256)
memcpy( ptr, src->dbcs.cp2uni + 256 * (i + 1), 256 * sizeof(USHORT) );
*ptr++ = 4;
for (i = 0; i < 65536; i++)
ptr[i] = src->dbcs.uni2cp_low[src->dbcs.uni2cp_high[i >> 8] + (i & 0xff)];
}
else
{
char *uni2cp;
ptr[5] = src->sbcs.cp2uni[src->info.def_char];
ptr[6] = src->sbcs.uni2cp_low[src->sbcs.uni2cp_high[src->info.def_unicode_char >> 8]
+ (src->info.def_unicode_char & 0xff)];
ptr += 7;
memset( ptr, 0, 12 );
ptr += 6;
*ptr++ = 256 + 3 + (src->sbcs.cp2uni_glyphs != src->sbcs.cp2uni ? 256 : 0);
memcpy( ptr, src->sbcs.cp2uni, 256 * sizeof(USHORT) );
ptr += 256;
if (src->sbcs.cp2uni_glyphs != src->sbcs.cp2uni)
{
*ptr++ = 256;
memcpy( ptr + 1, src->sbcs.cp2uni_glyphs, 256 );
ptr += 256;
}
else *ptr++ = 0;
*ptr++ = 0;
*ptr++ = 0;
uni2cp = (char *)ptr;
for (i = 0; i < 65536; i++)
uni2cp[i] = src->sbcs.uni2cp_low[src->sbcs.uni2cp_high[i >> 8] + (i & 0xff)];
}
return data;
}
#if !defined(__APPLE__) && !defined(__ANDROID__) /* these platforms always use UTF-8 */
/* charset to codepage map, sorted by name */
@ -604,7 +686,17 @@ NTSTATUS WINAPI NtGetNlsSectionPtr( ULONG type, ULONG id, void *unknown, void **
HANDLE file;
NTSTATUS status;
if ((status = open_nls_data_file( type, id, &file ))) return status;
if ((status = open_nls_data_file( type, id, &file )))
{
/* FIXME: special case for codepage table, generate it from the libwine data */
if (type == NLS_SECTION_CODEPAGE)
{
const union cptable *table = wine_cp_get_table( id );
if (table && (*ptr = build_cptable( table, size ))) return STATUS_SUCCESS;
}
return status;
}
if ((status = NtQueryInformationFile( file, &io, &info, sizeof(info), FileEndOfFileInformation )))
goto done;
/* FIXME: return a heap block instead of a file mapping for now */