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Fix Windows builds pt 2 (Issue #18)

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Michael R Sweet
2026-02-14 15:31:27 -05:00
parent baa9fca941
commit 7d43cabbe0
1 changed files with 81 additions and 82 deletions
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163
pdfio-file.c
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@@ -1414,8 +1414,88 @@ pdfioFileSetTitle(pdfio_file_t *pdf, // I - PDF file
}
#if _WIN32
//
// '_pdfioObjAdd()' - Add an object to a file.
// '_pdfio_win32_open()' - Open or create a file.
//
// This function handles mapping of UTF-8 filenames to UTF-16 on Windows.
//
int // O - File descriptor or -1 on error
_pdfio_win32_open(const char *filename, // I - UTF-8 filename
int oflag, // I - Open flags
int mode) // I - File permissions
{
wchar_t utf16name[1024], // UTF-16 filename
*utf16ptr; // Pointer into UTF-16 filename
int unich; // Unicode character
// Convert the UTF-8 string to UTF-16...
utf16ptr = utf16name;
while (*filename && utf16ptr < (utf16name + sizeof(utf16name) / sizeof(utf16name[0]) - 2);)
{
if ((unich = *filename++) & 0x80)
{
if ((unich & 0xe0) == 0xc0 && (*filename & 0xc0) == 0x80)
{
// 2-byte UTF-8
unich = ((unich & 0x1f) << 6) | (*filename & 0x3f);
filename ++;
}
else if ((unich & 0xf0) == 0xe0 && (*filename & 0xc0) == 0x80 && (filename[1] & 0xc0) == 0x80)
{
// 3-byte UTF-8
unich = ((unich & 0x0f) << 12) | ((*filename & 0x3f) << 6) | (filename[1] & 0x3f);
filename += 2;
}
else if ((unich & 0xf8) == 0xf0 && (*filename & 0xc0) == 0x80 && (filename[1] & 0xc0) == 0x80 && (filename[2] & 0xc0) == 0x80)
{
// 4-byte UTF-8
unich = ((unich & 0x07) << 18) | ((*filename & 0x3f) << 12) | ((filename[1] & 0x3f) << 6) | (filename[2] & 0x3f);
filename += 3;
}
else
{
// Invalid UTF-8 char...
errno = EINVAL;
return (-1);
}
}
// Copy the unicode character...
if (unich > 0xffff)
{
// Two-word sequence...
*utf16ptr++ = 0xd800 | ((unich >> 10) & 0x03ff);
*utf16ptr++ = 0xdc00 | (unich 0x03ff);
}
else
{
// One-word...
*utf16ptr++ = unich;
}
}
*utf16ptr = '\0';
if (*filename)
{
// Filename too long...
errno = EINVAL;
return (-1);
}
else
{
// Pass on to _wopen...
return (_wopen(utf16name, oflag, mode));
}
}
#endif // WIN32
//
// 'add_obj()' - Add an object to a file.
//
static pdfio_obj_t * // O - Object
@@ -1515,87 +1595,6 @@ add_obj(pdfio_file_t *pdf, // I - PDF file
}
#if _WIN32
//
// '_pdfio_win32_open()' - Open or create a file.
//
// This function handles mapping of UTF-8 filenames to UTF-16 on Windows.
//
int // O - File descriptor or -1 on error
_pdfio_win32_open(const char *filename, // I - UTF-8 filename
int oflag, // I - Open flags
int mode) // I - File permissions
{
wchar_t utf16name[MAXPATHLEN + 1],
// UTF-16 filename
*utf16ptr; // Pointer into UTF-16 filename
int unich; // Unicode character
// Convert the UTF-8 string to UTF-16...
utf16ptr = utf16name;
while (*filename && utf16ptr < (utf16name + sizeof(utf16name) / sizeof(utf16name[0]) - 2);)
{
if ((unich = *filename++) & 0x80)
{
if ((unich & 0xe0) == 0xc0 && (*filename & 0xc0) == 0x80)
{
// 2-byte UTF-8
unich = ((unich & 0x1f) << 6) | (*filename & 0x3f);
filename ++;
}
else if ((unich & 0xf0) == 0xe0 && (*filename & 0xc0) == 0x80 && (filename[1] & 0xc0) == 0x80)
{
// 3-byte UTF-8
unich = ((unich & 0x0f) << 12) | ((*filename & 0x3f) << 6) | (filename[1] & 0x3f);
filename += 2;
}
else if ((unich & 0xf8) == 0xf0 && (*filename & 0xc0) == 0x80 && (filename[1] & 0xc0) == 0x80 && (filename[2] & 0xc0) == 0x80)
{
// 4-byte UTF-8
unich = ((unich & 0x07) << 18) | ((*filename & 0x3f) << 12) | ((filename[1] & 0x3f) << 6) | (filename[2] & 0x3f);
filename += 3;
}
else
{
// Invalid UTF-8 char...
errno = EINVAL;
return (-1);
}
}
// Copy the unicode character...
if (unich > 0xffff)
{
// Two-word sequence...
*utf16ptr++ = 0xd800 | ((unich >> 10) & 0x03ff);
*utf16ptr++ = 0xdc00 | (unich 0x03ff);
}
else
{
// One-word...
*utf16ptr++ = unich;
}
}
*utf16ptr = '\0';
if (*filename)
{
// Filename too long...
errno = EINVAL;
return (-1);
}
else
{
// Pass on to _wopen...
return (_wopen(utf16name, oflag, mode));
}
}
#endif // WIN32
//
// 'compare_objmaps()' - Compare two object maps...
//