diff options
Diffstat (limited to 'src/fontcache.cpp')
-rw-r--r-- | src/fontcache.cpp | 760 |
1 files changed, 2 insertions, 758 deletions
diff --git a/src/fontcache.cpp b/src/fontcache.cpp index 27c908678..9e8ed0e1d 100644 --- a/src/fontcache.cpp +++ b/src/fontcache.cpp @@ -11,6 +11,7 @@ #include "stdafx.h" #include "fontcache.h" +#include "fontdetection.h" #include "blitter/factory.hpp" #include "core/math_func.hpp" #include "strings_func.h" @@ -48,11 +49,7 @@ void ResetFontSizes(bool monospace) #include FT_GLYPH_H #include FT_TRUETYPE_TABLES_H -#ifdef WITH_FONTCONFIG -#include <fontconfig/fontconfig.h> -#endif - -static FT_Library _library = NULL; +FT_Library _library = NULL; static FT_Face _face_small = NULL; static FT_Face _face_medium = NULL; static FT_Face _face_large = NULL; @@ -64,759 +61,6 @@ FreeTypeSettings _freetype; static const byte FACE_COLOUR = 1; static const byte SHADOW_COLOUR = 2; -/** - * Get the font loaded into a Freetype face by using a font-name. - * If no appropriate font is found, the function returns an error - */ - -/* ======================================================================================== - * Windows support - * ======================================================================================== */ - -#ifdef WIN32 -#include <windows.h> -#include <shlobj.h> /* SHGetFolderPath */ -#include "os/windows/win32.h" - -/** - * Get the short DOS 8.3 format for paths. - * FreeType doesn't support Unicode filenames and Windows' fopen (as used - * by FreeType) doesn't support UTF-8 filenames. So we have to convert the - * filename into something that isn't UTF-8 but represents the Unicode file - * name. This is the short DOS 8.3 format. This does not contain any - * characters that fopen doesn't support. - * @param long_path the path in UTF-8. - * @return the short path in ANSI (ASCII). - */ -char *GetShortPath(const char *long_path) -{ - static char short_path[MAX_PATH]; -#ifdef UNICODE - /* The non-unicode GetShortPath doesn't support UTF-8..., - * so convert the path to wide chars, then get the short - * path and convert it back again. */ - wchar_t long_path_w[MAX_PATH]; - MultiByteToWideChar(CP_UTF8, 0, long_path, -1, long_path_w, MAX_PATH); - - wchar_t short_path_w[MAX_PATH]; - GetShortPathNameW(long_path_w, short_path_w, MAX_PATH); - - WideCharToMultiByte(CP_ACP, 0, short_path_w, -1, short_path, MAX_PATH, NULL, NULL); -#else - /* Technically not needed, but do it for consistency. */ - GetShortPathNameA(long_path, short_path, MAX_PATH); -#endif - return short_path; -} - -/* Get the font file to be loaded into Freetype by looping the registry - * location where windows lists all installed fonts. Not very nice, will - * surely break if the registry path changes, but it works. Much better - * solution would be to use CreateFont, and extract the font data from it - * by GetFontData. The problem with this is that the font file needs to be - * kept in memory then until the font is no longer needed. This could mean - * an additional memory usage of 30MB (just for fonts!) when using an eastern - * font for all font sizes */ -#define FONT_DIR_NT "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Fonts" -#define FONT_DIR_9X "SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Fonts" -static FT_Error GetFontByFaceName(const char *font_name, FT_Face *face) -{ - FT_Error err = FT_Err_Cannot_Open_Resource; - HKEY hKey; - LONG ret; - TCHAR vbuffer[MAX_PATH], dbuffer[256]; - TCHAR *font_namep; - char *font_path; - uint index; - - /* On windows NT (2000, NT3.5, XP, etc.) the fonts are stored in the - * "Windows NT" key, on Windows 9x in the Windows key. To save us having - * to retrieve the windows version, we'll just query both */ - ret = RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T(FONT_DIR_NT), 0, KEY_READ, &hKey); - if (ret != ERROR_SUCCESS) ret = RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T(FONT_DIR_9X), 0, KEY_READ, &hKey); - - if (ret != ERROR_SUCCESS) { - DEBUG(freetype, 0, "Cannot open registry key HKLM\\SOFTWARE\\Microsoft\\Windows (NT)\\CurrentVersion\\Fonts"); - return err; - } - - /* For Unicode we need some conversion between widechar and - * normal char to match the data returned by RegEnumValue, - * otherwise just use parameter */ -#if defined(UNICODE) - font_namep = MallocT<TCHAR>(MAX_PATH); - MB_TO_WIDE_BUFFER(font_name, font_namep, MAX_PATH * sizeof(TCHAR)); -#else - font_namep = const_cast<char *>(font_name); // only cast because in unicode pointer is not const -#endif - - for (index = 0;; index++) { - TCHAR *s; - DWORD vbuflen = lengthof(vbuffer); - DWORD dbuflen = lengthof(dbuffer); - - ret = RegEnumValue(hKey, index, vbuffer, &vbuflen, NULL, NULL, (byte*)dbuffer, &dbuflen); - if (ret != ERROR_SUCCESS) goto registry_no_font_found; - - /* The font names in the registry are of the following 3 forms: - * - ADMUI3.fon - * - Book Antiqua Bold (TrueType) - * - Batang & BatangChe & Gungsuh & GungsuhChe (TrueType) - * We will strip the font-type '()' if any and work with the font name - * itself, which must match exactly; if... - * TTC files, font files which contain more than one font are separated - * by '&'. Our best bet will be to do substr match for the fontname - * and then let FreeType figure out which index to load */ - s = _tcschr(vbuffer, _T('(')); - if (s != NULL) s[-1] = '\0'; - - if (_tcschr(vbuffer, _T('&')) == NULL) { - if (_tcsicmp(vbuffer, font_namep) == 0) break; - } else { - if (_tcsstr(vbuffer, font_namep) != NULL) break; - } - } - - if (!SUCCEEDED(OTTDSHGetFolderPath(NULL, CSIDL_FONTS, NULL, SHGFP_TYPE_CURRENT, vbuffer))) { - DEBUG(freetype, 0, "SHGetFolderPath cannot return fonts directory"); - goto folder_error; - } - - /* Some fonts are contained in .ttc files, TrueType Collection fonts. These - * contain multiple fonts inside this single file. GetFontData however - * returns the whole file, so we need to check each font inside to get the - * proper font. - * Also note that FreeType does not support UNICODE filenames! */ -#if defined(UNICODE) - /* We need a cast here back from wide because FreeType doesn't support - * widechar filenames. Just use the buffer we allocated before for the - * font_name search */ - font_path = (char*)font_namep; - WIDE_TO_MB_BUFFER(vbuffer, font_path, MAX_PATH * sizeof(TCHAR)); -#else - font_path = vbuffer; -#endif - - ttd_strlcat(font_path, "\\", MAX_PATH * sizeof(TCHAR)); - ttd_strlcat(font_path, WIDE_TO_MB(dbuffer), MAX_PATH * sizeof(TCHAR)); - - /* Convert the path into something that FreeType understands */ - font_path = GetShortPath(font_path); - - index = 0; - do { - err = FT_New_Face(_library, font_path, index, face); - if (err != FT_Err_Ok) break; - - if (strncasecmp(font_name, (*face)->family_name, strlen((*face)->family_name)) == 0) break; - /* Try english name if font name failed */ - if (strncasecmp(font_name + strlen(font_name) + 1, (*face)->family_name, strlen((*face)->family_name)) == 0) break; - err = FT_Err_Cannot_Open_Resource; - - } while ((FT_Long)++index != (*face)->num_faces); - - -folder_error: -registry_no_font_found: -#if defined(UNICODE) - free(font_namep); -#endif - RegCloseKey(hKey); - return err; -} - -/** - * Fonts can have localised names and when the system locale is the same as - * one of those localised names Windows will always return that localised name - * instead of allowing to get the non-localised (English US) name of the font. - * This will later on give problems as freetype uses the non-localised name of - * the font and we need to compare based on that name. - * Windows furthermore DOES NOT have an API to get the non-localised name nor - * can we override the system locale. This means that we have to actually read - * the font itself to gather the font name we want. - * Based on: http://blogs.msdn.com/michkap/archive/2006/02/13/530814.aspx - * @param logfont the font information to get the english name of. - * @return the English name (if it could be found). - */ -static const char *GetEnglishFontName(const ENUMLOGFONTEX *logfont) -{ - static char font_name[MAX_PATH]; - const char *ret_font_name = NULL; - uint pos = 0; - HDC dc; - HGDIOBJ oldfont; - byte *buf; - DWORD dw; - uint16 format, count, stringOffset, platformId, encodingId, languageId, nameId, length, offset; - - HFONT font = CreateFontIndirect(&logfont->elfLogFont); - if (font == NULL) goto err1; - - dc = GetDC(NULL); - oldfont = SelectObject(dc, font); - dw = GetFontData(dc, 'eman', 0, NULL, 0); - if (dw == GDI_ERROR) goto err2; - - buf = MallocT<byte>(dw); - dw = GetFontData(dc, 'eman', 0, buf, dw); - if (dw == GDI_ERROR) goto err3; - - format = buf[pos++] << 8; - format += buf[pos++]; - assert(format == 0); - count = buf[pos++] << 8; - count += buf[pos++]; - stringOffset = buf[pos++] << 8; - stringOffset += buf[pos++]; - for (uint i = 0; i < count; i++) { - platformId = buf[pos++] << 8; - platformId += buf[pos++]; - encodingId = buf[pos++] << 8; - encodingId += buf[pos++]; - languageId = buf[pos++] << 8; - languageId += buf[pos++]; - nameId = buf[pos++] << 8; - nameId += buf[pos++]; - if (nameId != 1) { - pos += 4; // skip length and offset - continue; - } - length = buf[pos++] << 8; - length += buf[pos++]; - offset = buf[pos++] << 8; - offset += buf[pos++]; - - /* Don't buffer overflow */ - length = min(length, MAX_PATH - 1); - for (uint j = 0; j < length; j++) font_name[j] = buf[stringOffset + offset + j]; - font_name[length] = '\0'; - - if ((platformId == 1 && languageId == 0) || // Macintosh English - (platformId == 3 && languageId == 0x0409)) { // Microsoft English (US) - ret_font_name = font_name; - break; - } - } - -err3: - free(buf); -err2: - SelectObject(dc, oldfont); - ReleaseDC(NULL, dc); - DeleteObject(font); -err1: - return ret_font_name == NULL ? WIDE_TO_MB((const TCHAR*)logfont->elfFullName) : ret_font_name; -} - -class FontList { -protected: - TCHAR **fonts; - uint items; - uint capacity; - -public: - FontList() : fonts(NULL), items(0), capacity(0) { }; - - ~FontList() { - if (this->fonts == NULL) return; - - for (uint i = 0; i < this->items; i++) { - free(this->fonts[i]); - } - - free(this->fonts); - } - - bool Add(const TCHAR *font) { - for (uint i = 0; i < this->items; i++) { - if (_tcscmp(this->fonts[i], font) == 0) return false; - } - - if (this->items == this->capacity) { - this->capacity += 10; - this->fonts = ReallocT(this->fonts, this->capacity); - } - - this->fonts[this->items++] = _tcsdup(font); - - return true; - } -}; - -struct EFCParam { - FreeTypeSettings *settings; - LOCALESIGNATURE locale; - MissingGlyphSearcher *callback; - FontList fonts; -}; - -static int CALLBACK EnumFontCallback(const ENUMLOGFONTEX *logfont, const NEWTEXTMETRICEX *metric, DWORD type, LPARAM lParam) -{ - EFCParam *info = (EFCParam *)lParam; - - /* Skip duplicates */ - if (!info->fonts.Add((const TCHAR*)logfont->elfFullName)) return 1; - /* Only use TrueType fonts */ - if (!(type & TRUETYPE_FONTTYPE)) return 1; - /* Don't use SYMBOL fonts */ - if (logfont->elfLogFont.lfCharSet == SYMBOL_CHARSET) return 1; - /* Use monospaced fonts when asked for it. */ - if (info->callback->Monospace() && (logfont->elfLogFont.lfPitchAndFamily & (FF_MODERN | FIXED_PITCH)) != (FF_MODERN | FIXED_PITCH)) return 1; - - /* The font has to have at least one of the supported locales to be usable. */ - if ((metric->ntmFontSig.fsCsb[0] & info->locale.lsCsbSupported[0]) == 0 && (metric->ntmFontSig.fsCsb[1] & info->locale.lsCsbSupported[1]) == 0) { - /* On win9x metric->ntmFontSig seems to contain garbage. */ - FONTSIGNATURE fs; - memset(&fs, 0, sizeof(fs)); - HFONT font = CreateFontIndirect(&logfont->elfLogFont); - if (font != NULL) { - HDC dc = GetDC(NULL); - HGDIOBJ oldfont = SelectObject(dc, font); - GetTextCharsetInfo(dc, &fs, 0); - SelectObject(dc, oldfont); - ReleaseDC(NULL, dc); - DeleteObject(font); - } - if ((fs.fsCsb[0] & info->locale.lsCsbSupported[0]) == 0 && (fs.fsCsb[1] & info->locale.lsCsbSupported[1]) == 0) return 1; - } - - char font_name[MAX_PATH]; -#if defined(UNICODE) - WIDE_TO_MB_BUFFER((const TCHAR*)logfont->elfFullName, font_name, lengthof(font_name)); -#else - strecpy(font_name, (const TCHAR*)logfont->elfFullName, lastof(font_name)); -#endif - - /* Add english name after font name */ - const char *english_name = GetEnglishFontName(logfont); - strecpy(font_name + strlen(font_name) + 1, english_name, lastof(font_name)); - - /* Check whether we can actually load the font. */ - bool ft_init = _library != NULL; - bool found = false; - FT_Face face; - /* Init FreeType if needed. */ - if ((ft_init || FT_Init_FreeType(&_library) == FT_Err_Ok) && GetFontByFaceName(font_name, &face) == FT_Err_Ok) { - FT_Done_Face(face); - found = true; - } - if (!ft_init) { - /* Uninit FreeType if we did the init. */ - FT_Done_FreeType(_library); - _library = NULL; - } - - if (!found) return 1; - - info->callback->SetFontNames(info->settings, font_name); - if (info->callback->FindMissingGlyphs(NULL)) return 1; - DEBUG(freetype, 1, "Fallback font: %s (%s)", font_name, english_name); - return 0; // stop enumerating -} - -bool SetFallbackFont(FreeTypeSettings *settings, const char *language_isocode, int winlangid, MissingGlyphSearcher *callback) -{ - DEBUG(freetype, 1, "Trying fallback fonts"); - EFCParam langInfo; - if (GetLocaleInfo(MAKELCID(winlangid, SORT_DEFAULT), LOCALE_FONTSIGNATURE, (LPTSTR)&langInfo.locale, sizeof(langInfo.locale) / sizeof(TCHAR)) == 0) { - /* Invalid langid or some other mysterious error, can't determine fallback font. */ - DEBUG(freetype, 1, "Can't get locale info for fallback font (langid=0x%x)", winlangid); - return false; - } - langInfo.settings = settings; - langInfo.callback = callback; - - LOGFONT font; - /* Enumerate all fonts. */ - font.lfCharSet = DEFAULT_CHARSET; - font.lfFaceName[0] = '\0'; - font.lfPitchAndFamily = 0; - - HDC dc = GetDC(NULL); - int ret = EnumFontFamiliesEx(dc, &font, (FONTENUMPROC)&EnumFontCallback, (LPARAM)&langInfo, 0); - ReleaseDC(NULL, dc); - return ret == 0; -} - -#elif defined(__APPLE__) /* end ifdef Win32 */ -/* ======================================================================================== - * OSX support - * ======================================================================================== */ - -#include "os/macosx/macos.h" - -FT_Error GetFontByFaceName(const char *font_name, FT_Face *face) -{ - FT_Error err = FT_Err_Cannot_Open_Resource; - - /* Get font reference from name. */ - CFStringRef name = CFStringCreateWithCString(kCFAllocatorDefault, font_name, kCFStringEncodingUTF8); - ATSFontRef font = ATSFontFindFromName(name, kATSOptionFlagsDefault); - CFRelease(name); - if (font == kInvalidFont) return err; - - /* Get a file system reference for the font. */ - FSRef ref; - OSStatus os_err = -1; -#if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5) - if (MacOSVersionIsAtLeast(10, 5, 0)) { - os_err = ATSFontGetFileReference(font, &ref); - } else -#endif - { -#if (MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5) && !__LP64__ - /* This type was introduced with the 10.5 SDK. */ -#if (MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_5) - #define ATSFSSpec FSSpec -#endif - FSSpec spec; - os_err = ATSFontGetFileSpecification(font, (ATSFSSpec *)&spec); - if (os_err == noErr) os_err = FSpMakeFSRef(&spec, &ref); -#endif - } - - if (os_err == noErr) { - /* Get unix path for file. */ - UInt8 file_path[PATH_MAX]; - if (FSRefMakePath(&ref, file_path, sizeof(file_path)) == noErr) { - DEBUG(freetype, 3, "Font path for %s: %s", font_name, file_path); - err = FT_New_Face(_library, (const char *)file_path, 0, face); - } - } - - return err; -} - -bool SetFallbackFont(FreeTypeSettings *settings, const char *language_isocode, int winlangid, MissingGlyphSearcher *callback) -{ - const char *str; - bool result = false; - - callback->FindMissingGlyphs(&str); - -#if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5) - if (MacOSVersionIsAtLeast(10, 5, 0)) { - /* Determine fallback font using CoreText. This uses the language isocode - * to find a suitable font. CoreText is available from 10.5 onwards. */ - char lang[16]; - if (strcmp(language_isocode, "zh_TW") == 0) { - /* Traditional Chinese */ - strecpy(lang, "zh-Hant", lastof(lang)); - } else if (strcmp(language_isocode, "zh_CN") == 0) { - /* Simplified Chinese */ - strecpy(lang, "zh-Hans", lastof(lang)); - } else if (strncmp(language_isocode, "ur", 2) == 0) { - /* The urdu alphabet is variant of persian. As OS X has no default - * font that advertises an urdu language code, search for persian - * support instead. */ - strecpy(lang, "fa", lastof(lang)); - } else { - /* Just copy the first part of the isocode. */ - strecpy(lang, language_isocode, lastof(lang)); - char *sep = strchr(lang, '_'); - if (sep != NULL) *sep = '\0'; - } - - CFStringRef lang_code; - lang_code = CFStringCreateWithCString(kCFAllocatorDefault, lang, kCFStringEncodingUTF8); - - /* Create a font iterator and iterate over all fonts that - * are available to the application. */ - ATSFontIterator itr; - ATSFontRef font; - ATSFontIteratorCreate(kATSFontContextLocal, NULL, NULL, kATSOptionFlagsUnRestrictedScope, &itr); - while (!result && ATSFontIteratorNext(itr, &font) == noErr) { - /* Get CoreText font handle. */ - CTFontRef font_ref = CTFontCreateWithPlatformFont(font, 0.0, NULL, NULL); - CFArrayRef langs = CTFontCopySupportedLanguages(font_ref); - if (langs != NULL) { - /* Font has a list of supported languages. */ - for (CFIndex i = 0; i < CFArrayGetCount(langs); i++) { - CFStringRef lang = (CFStringRef)CFArrayGetValueAtIndex(langs, i); - if (CFStringCompare(lang, lang_code, kCFCompareAnchored) == kCFCompareEqualTo) { - /* Lang code is supported by font, get full font name. */ - CFStringRef font_name = CTFontCopyFullName(font_ref); - char name[128]; - CFStringGetCString(font_name, name, lengthof(name), kCFStringEncodingUTF8); - CFRelease(font_name); - /* Skip some inappropriate or ugly looking fonts that have better alternatives. */ - if (strncmp(name, "Courier", 7) == 0 || strncmp(name, "Apple Symbols", 13) == 0 || - strncmp(name, ".Aqua", 5) == 0 || strncmp(name, "LastResort", 10) == 0 || - strncmp(name, "GB18030 Bitmap", 14) == 0) continue; - - /* Save result. */ - callback->SetFontNames(settings, name); - DEBUG(freetype, 2, "CT-Font for %s: %s", language_isocode, name); - result = true; - break; - } - } - CFRelease(langs); - } - CFRelease(font_ref); - } - ATSFontIteratorRelease(&itr); - CFRelease(lang_code); - } else -#endif - { -#if (MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5) && !__LP64__ - /* Determine fallback font using ATSUI. This uses a string sample with - * missing characters. This is not failure-proof, but a better way like - * using the isocode as in the CoreText code path is not available. - * ATSUI was deprecated with 10.6 and is only partially available in - * 64-bit mode. */ - - /* Remove all control characters in the range from SCC_CONTROL_START to - * SCC_CONTROL_END as well as all ASCII < 0x20 from the string as it will - * mess with the automatic font detection */ - char buff[256]; // This length is enough to find a suitable replacement font - strecpy(buff, str, lastof(buff)); - str_validate(buff, lastof(buff), SVS_ALLOW_NEWLINE); - - /* Extract a UniChar representation of the sample string. */ - CFStringRef cf_str = CFStringCreateWithCString(kCFAllocatorDefault, buff, kCFStringEncodingUTF8); - if (cf_str == NULL) { - /* Something went wrong. Corrupt/invalid sample string? */ - return false; - } - CFIndex str_len = CFStringGetLength(cf_str); - UniChar string[str_len]; - CFStringGetCharacters(cf_str, CFRangeMake(0, str_len), string); - - /* Create a default text style with the default font. */ - ATSUStyle style; - ATSUCreateStyle(&style); - - /* Create a text layout object from the sample string using the text style. */ - UniCharCount run_len = kATSUToTextEnd; - ATSUTextLayout text_layout; - ATSUCreateTextLayoutWithTextPtr(string, kATSUFromTextBeginning, kATSUToTextEnd, str_len, 1, &run_len, &style, &text_layout); - - /* Try to match a font for the sample text. ATSUMatchFontsToText stops after - * it finds the first continuous character run not renderable with the currently - * selected font starting at offset. The matching needs to be repeated until - * the end of the string is reached to make sure the fallback font matches for - * all characters in the string and not only the first run. */ - UniCharArrayOffset offset = kATSUFromTextBeginning; - OSStatus os_err; - do { - ATSUFontID font; - UniCharCount run_len; - os_err = ATSUMatchFontsToText(text_layout, offset, kATSUToTextEnd, &font, &offset, &run_len); - if (os_err == kATSUFontsMatched) { - /* Found a better fallback font. Update the text layout - * object with the new font. */ - ATSUAttributeTag tag = kATSUFontTag; - ByteCount size = sizeof(font); - ATSUAttributeValuePtr val = &font; - ATSUSetAttributes(style, 1, &tag, &size, &val); - offset += run_len; - } - /* Exit if the end of the string is reached or some other error occurred. */ - } while (os_err == kATSUFontsMatched && offset < (UniCharArrayOffset)str_len); - - if (os_err == noErr || os_err == kATSUFontsMatched) { - /* ATSUMatchFontsToText exited normally. Extract font - * out of the text layout object. */ - ATSUFontID font; - ByteCount act_len; - ATSUGetAttribute(style, kATSUFontTag, sizeof(font), &font, &act_len); - - /* Get unique font name. The result is not a c-string, we have - * to leave space for a \0 and terminate it ourselves. */ - char name[128]; - ATSUFindFontName(font, kFontUniqueName, kFontNoPlatformCode, kFontNoScriptCode, kFontNoLanguageCode, 127, name, &act_len, NULL); - name[act_len > 127 ? 127 : act_len] = '\0'; - - /* Save Result. */ - callback->SetFontNames(settings, name); - DEBUG(freetype, 2, "ATSUI-Font for %s: %s", language_isocode, name); - result = true; - } - - ATSUDisposeTextLayout(text_layout); - ATSUDisposeStyle(style); - CFRelease(cf_str); -#endif - } - - if (result && strncmp(settings->medium_font, "Geeza Pro", 9) == 0) { - /* The font 'Geeza Pro' is often found for arabic characters, but - * it has the 'tiny' problem of not having any latin characters. - * 'Arial Unicode MS' on the other hand has arabic and latin glyphs, - * but seems to 'forget' to inform the OS about this fact. Manually - * substitute the latter for the former if it is loadable. */ - bool ft_init = _library != NULL; - FT_Face face; - /* Init FreeType if needed. */ - if ((ft_init || FT_Init_FreeType(&_library) == FT_Err_Ok) && GetFontByFaceName("Arial Unicode MS", &face) == FT_Err_Ok) { - FT_Done_Face(face); - callback->SetFontNames(settings, "Arial Unicode MS"); - DEBUG(freetype, 1, "Replacing font 'Geeza Pro' with 'Arial Unicode MS'"); - } - if (!ft_init) { - /* Uninit FreeType if we did the init. */ - FT_Done_FreeType(_library); - _library = NULL; - } - } - - callback->FindMissingGlyphs(NULL); - return result; -} - -#elif defined(WITH_FONTCONFIG) /* end ifdef __APPLE__ */ -/* ======================================================================================== - * FontConfig (unix) support - * ======================================================================================== */ -static FT_Error GetFontByFaceName(const char *font_name, FT_Face *face) -{ - FT_Error err = FT_Err_Cannot_Open_Resource; - - if (!FcInit()) { - ShowInfoF("Unable to load font configuration"); - } else { - FcPattern *match; - FcPattern *pat; - FcFontSet *fs; - FcResult result; - char *font_style; - char *font_family; - - /* Split & strip the font's style */ - font_family = strdup(font_name); - font_style = strchr(font_family, ','); - if (font_style != NULL) { - font_style[0] = '\0'; - font_style++; - while (*font_style == ' ' || *font_style == '\t') font_style++; - } - - /* Resolve the name and populate the information structure */ - pat = FcNameParse((FcChar8*)font_family); - if (font_style != NULL) FcPatternAddString(pat, FC_STYLE, (FcChar8*)font_style); - FcConfigSubstitute(0, pat, FcMatchPattern); - FcDefaultSubstitute(pat); - fs = FcFontSetCreate(); - match = FcFontMatch(0, pat, &result); - - if (fs != NULL && match != NULL) { - int i; - FcChar8 *family; - FcChar8 *style; - FcChar8 *file; - FcFontSetAdd(fs, match); - - for (i = 0; err != FT_Err_Ok && i < fs->nfont; i++) { - /* Try the new filename */ - if (FcPatternGetString(fs->fonts[i], FC_FILE, 0, &file) == FcResultMatch && - FcPatternGetString(fs->fonts[i], FC_FAMILY, 0, &family) == FcResultMatch && - FcPatternGetString(fs->fonts[i], FC_STYLE, 0, &style) == FcResultMatch) { - - /* The correct style? */ - if (font_style != NULL && strcasecmp(font_style, (char*)style) != 0) continue; - - /* Font config takes the best shot, which, if the family name is spelled - * wrongly a 'random' font, so check whether the family name is the - * same as the supplied name */ - if (strcasecmp(font_family, (char*)family) == 0) { - err = FT_New_Face(_library, (char *)file, 0, face); - } - } - } - } - - free(font_family); - FcPatternDestroy(pat); - FcFontSetDestroy(fs); - FcFini(); - } - - return err; -} - -bool SetFallbackFont(FreeTypeSettings *settings, const char *language_isocode, int winlangid, MissingGlyphSearcher *callback) -{ - if (!FcInit()) return false; - - bool ret = false; - - /* Fontconfig doesn't handle full language isocodes, only the part - * before the _ of e.g. en_GB is used, so "remove" everything after - * the _. */ - char lang[16]; - seprintf(lang, lastof(lang), ":lang=%s", language_isocode); - char *split = strchr(lang, '_'); - if (split != NULL) *split = '\0'; - - /* First create a pattern to match the wanted language. */ - FcPattern *pat = FcNameParse((FcChar8*)lang); - /* We only want to know the filename. */ - FcObjectSet *os = FcObjectSetBuild(FC_FILE, FC_SPACING, FC_SLANT, FC_WEIGHT, NULL); - /* Get the list of filenames matching the wanted language. */ - FcFontSet *fs = FcFontList(NULL, pat, os); - - /* We don't need these anymore. */ - FcObjectSetDestroy(os); - FcPatternDestroy(pat); - - if (fs != NULL) { - int best_weight = -1; - const char *best_font = NULL; - - for (int i = 0; i < fs->nfont; i++) { - FcPattern *font = fs->fonts[i]; - - FcChar8 *file = NULL; - FcResult res = FcPatternGetString(font, FC_FILE, 0, &file); - if (res != FcResultMatch || file == NULL) { - continue; - } - - /* Get a font with the right spacing .*/ - int value = 0; - FcPatternGetInteger(font, FC_SPACING, 0, &value); - if (callback->Monospace() != (value == FC_MONO) && value != FC_DUAL) continue; - - /* Do not use those that explicitly say they're slanted. */ - FcPatternGetInteger(font, FC_SLANT, 0, &value); - if (value != 0) continue; - - /* We want the fatter font as they look better at small sizes. */ - FcPatternGetInteger(font, FC_WEIGHT, 0, &value); - if (value <= best_weight) continue; - - callback->SetFontNames(settings, (const char*)file); - - bool missing = callback->FindMissingGlyphs(NULL); - DEBUG(freetype, 1, "Font \"%s\" misses%s glyphs", file, missing ? "" : " no"); - - if (!missing) { - best_weight = value; - best_font = (const char *)file; - } - } - - if (best_font != NULL) { - ret = true; - callback->SetFontNames(settings, best_font); - InitFreeType(callback->Monospace()); - } - - /* Clean up the list of filenames. */ - FcFontSetDestroy(fs); - } - - FcFini(); - return ret; -} - -#else /* without WITH_FONTCONFIG */ -FT_Error GetFontByFaceName(const char *font_name, FT_Face *face) {return FT_Err_Cannot_Open_Resource;} -bool SetFallbackFont(FreeTypeSettings *settings, const char *language_isocode, int winlangid, MissingGlyphSearcher *callback) { return false; } -#endif /* WITH_FONTCONFIG */ - static void SetFontGeometry(FT_Face face, FontSize size, int pixels) { if (pixels == 0) { |