/* * Methods for dealing with opentype font tables * * Copyright 2014 Aric Stewart for CodeWeavers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ #define COBJMACROS #include "dwrite_private.h" #include "winternl.h" WINE_DEFAULT_DEBUG_CHANNEL(dwrite); #define MS_HEAD_TAG DWRITE_MAKE_OPENTYPE_TAG('h','e','a','d') #define MS_HHEA_TAG DWRITE_MAKE_OPENTYPE_TAG('h','h','e','a') #define MS_OTTO_TAG DWRITE_MAKE_OPENTYPE_TAG('O','T','T','O') #define MS_OS2_TAG DWRITE_MAKE_OPENTYPE_TAG('O','S','/','2') #define MS_POST_TAG DWRITE_MAKE_OPENTYPE_TAG('p','o','s','t') #define MS_TTCF_TAG DWRITE_MAKE_OPENTYPE_TAG('t','t','c','f') #define MS_GPOS_TAG DWRITE_MAKE_OPENTYPE_TAG('G','P','O','S') #define MS_GSUB_TAG DWRITE_MAKE_OPENTYPE_TAG('G','S','U','B') #define MS_NAME_TAG DWRITE_MAKE_OPENTYPE_TAG('n','a','m','e') #ifdef WORDS_BIGENDIAN #define GET_BE_WORD(x) (x) #define GET_BE_DWORD(x) (x) #else #define GET_BE_WORD(x) RtlUshortByteSwap(x) #define GET_BE_DWORD(x) RtlUlongByteSwap(x) #endif typedef struct { CHAR TTCTag[4]; DWORD Version; DWORD numFonts; DWORD OffsetTable[1]; } TTC_Header_V1; typedef struct { DWORD version; WORD numTables; WORD searchRange; WORD entrySelector; WORD rangeShift; } TTC_SFNT_V1; typedef struct { CHAR tag[4]; DWORD checkSum; DWORD offset; DWORD length; } TT_TableRecord; typedef struct { WORD platformID; WORD encodingID; DWORD offset; } CMAP_EncodingRecord; typedef struct { WORD version; WORD numTables; CMAP_EncodingRecord tables[1]; } CMAP_Header; typedef struct { DWORD startCharCode; DWORD endCharCode; DWORD startGlyphID; } CMAP_SegmentedCoverage_group; typedef struct { WORD format; WORD reserved; DWORD length; DWORD language; DWORD nGroups; CMAP_SegmentedCoverage_group groups[1]; } CMAP_SegmentedCoverage; typedef struct { WORD format; WORD length; WORD language; WORD segCountX2; WORD searchRange; WORD entrySelector; WORD rangeShift; WORD endCode[1]; } CMAP_SegmentMapping_0; enum OPENTYPE_CMAP_TABLE_FORMAT { OPENTYPE_CMAP_TABLE_SEGMENT_MAPPING = 4, OPENTYPE_CMAP_TABLE_SEGMENTED_COVERAGE = 12 }; /* PANOSE is 10 bytes in size, need to pack the structure properly */ #include "pshpack2.h" typedef struct { ULONG version; ULONG revision; ULONG checksumadj; ULONG magic; USHORT flags; USHORT unitsPerEm; ULONGLONG created; ULONGLONG modified; SHORT xMin; SHORT yMin; SHORT xMax; SHORT yMax; USHORT macStyle; USHORT lowestRecPPEM; SHORT direction_hint; SHORT index_format; SHORT glyphdata_format; } TT_HEAD; enum TT_HEAD_MACSTYLE { TT_HEAD_MACSTYLE_BOLD = 1 << 0, TT_HEAD_MACSTYLE_ITALIC = 1 << 1, TT_HEAD_MACSTYLE_UNDERLINE = 1 << 2, TT_HEAD_MACSTYLE_OUTLINE = 1 << 3, TT_HEAD_MACSTYLE_SHADOW = 1 << 4, TT_HEAD_MACSTYLE_CONDENSED = 1 << 5, TT_HEAD_MACSTYLE_EXTENDED = 1 << 6, }; typedef struct { ULONG Version; ULONG italicAngle; SHORT underlinePosition; SHORT underlineThickness; ULONG fixed_pitch; ULONG minmemType42; ULONG maxmemType42; ULONG minmemType1; ULONG maxmemType1; } TT_POST; typedef struct { USHORT version; SHORT xAvgCharWidth; USHORT usWeightClass; USHORT usWidthClass; SHORT fsType; SHORT ySubscriptXSize; SHORT ySubscriptYSize; SHORT ySubscriptXOffset; SHORT ySubscriptYOffset; SHORT ySuperscriptXSize; SHORT ySuperscriptYSize; SHORT ySuperscriptXOffset; SHORT ySuperscriptYOffset; SHORT yStrikeoutSize; SHORT yStrikeoutPosition; SHORT sFamilyClass; PANOSE panose; ULONG ulUnicodeRange1; ULONG ulUnicodeRange2; ULONG ulUnicodeRange3; ULONG ulUnicodeRange4; CHAR achVendID[4]; USHORT fsSelection; USHORT usFirstCharIndex; USHORT usLastCharIndex; /* According to the Apple spec, original version didn't have the below fields, * version numbers were taken from the OpenType spec. */ /* version 0 (TrueType 1.5) */ USHORT sTypoAscender; USHORT sTypoDescender; USHORT sTypoLineGap; USHORT usWinAscent; USHORT usWinDescent; /* version 1 (TrueType 1.66) */ ULONG ulCodePageRange1; ULONG ulCodePageRange2; /* version 2 (OpenType 1.2) */ SHORT sxHeight; SHORT sCapHeight; USHORT usDefaultChar; USHORT usBreakChar; USHORT usMaxContext; } TT_OS2_V2; typedef struct { ULONG version; SHORT ascender; SHORT descender; SHORT linegap; USHORT advanceWidthMax; SHORT minLeftSideBearing; SHORT minRightSideBearing; SHORT xMaxExtent; SHORT caretSlopeRise; SHORT caretSlopeRun; SHORT caretOffset; SHORT reserved[4]; SHORT metricDataFormat; USHORT numberOfHMetrics; } TT_HHEA; #include "poppack.h" enum OS2_FSSELECTION { OS2_FSSELECTION_ITALIC = 1 << 0, OS2_FSSELECTION_UNDERSCORE = 1 << 1, OS2_FSSELECTION_NEGATIVE = 1 << 2, OS2_FSSELECTION_OUTLINED = 1 << 3, OS2_FSSELECTION_STRIKEOUT = 1 << 4, OS2_FSSELECTION_BOLD = 1 << 5, OS2_FSSELECTION_REGULAR = 1 << 6, OS2_FSSELECTION_USE_TYPO_METRICS = 1 << 7, OS2_FSSELECTION_WWS = 1 << 8, OS2_FSSELECTION_OBLIQUE = 1 << 9 }; typedef struct { WORD platformID; WORD encodingID; WORD languageID; WORD nameID; WORD length; WORD offset; } TT_NameRecord; typedef struct { WORD format; WORD count; WORD stringOffset; TT_NameRecord nameRecord[1]; } TT_NAME_V0; struct VDMX_Header { WORD version; WORD numRecs; WORD numRatios; }; struct VDMX_Ratio { BYTE bCharSet; BYTE xRatio; BYTE yStartRatio; BYTE yEndRatio; }; struct VDMX_group { WORD recs; BYTE startsz; BYTE endsz; }; struct VDMX_vTable { WORD yPelHeight; SHORT yMax; SHORT yMin; }; typedef struct { CHAR FeatureTag[4]; WORD Feature; } OT_FeatureRecord; typedef struct { WORD FeatureCount; OT_FeatureRecord FeatureRecord[1]; } OT_FeatureList; typedef struct { WORD LookupOrder; /* Reserved */ WORD ReqFeatureIndex; WORD FeatureCount; WORD FeatureIndex[1]; } OT_LangSys; typedef struct { CHAR LangSysTag[4]; WORD LangSys; } OT_LangSysRecord; typedef struct { WORD DefaultLangSys; WORD LangSysCount; OT_LangSysRecord LangSysRecord[1]; } OT_Script; typedef struct { CHAR ScriptTag[4]; WORD Script; } OT_ScriptRecord; typedef struct { WORD ScriptCount; OT_ScriptRecord ScriptRecord[1]; } OT_ScriptList; typedef struct { DWORD version; WORD ScriptList; WORD FeatureList; WORD LookupList; } GPOS_GSUB_Header; enum OPENTYPE_PLATFORM_ID { OPENTYPE_PLATFORM_UNICODE = 0, OPENTYPE_PLATFORM_MAC, OPENTYPE_PLATFORM_ISO, OPENTYPE_PLATFORM_WIN, OPENTYPE_PLATFORM_CUSTOM }; enum TT_NAME_WINDOWS_ENCODING_ID { TT_NAME_WINDOWS_ENCODING_SYMBOL = 0, TT_NAME_WINDOWS_ENCODING_UCS2, TT_NAME_WINDOWS_ENCODING_SJIS, TT_NAME_WINDOWS_ENCODING_PRC, TT_NAME_WINDOWS_ENCODING_BIG5, TT_NAME_WINDOWS_ENCODING_WANSUNG, TT_NAME_WINDOWS_ENCODING_JOHAB, TT_NAME_WINDOWS_ENCODING_RESERVED1, TT_NAME_WINDOWS_ENCODING_RESERVED2, TT_NAME_WINDOWS_ENCODING_RESERVED3, TT_NAME_WINDOWS_ENCODING_UCS4 }; enum TT_NAME_MAC_ENCODING_ID { TT_NAME_MAC_ENCODING_ROMAN = 0, TT_NAME_MAC_ENCODING_JAPANESE, TT_NAME_MAC_ENCODING_TRAD_CHINESE, TT_NAME_MAC_ENCODING_KOREAN, TT_NAME_MAC_ENCODING_ARABIC, TT_NAME_MAC_ENCODING_HEBREW, TT_NAME_MAC_ENCODING_GREEK, TT_NAME_MAC_ENCODING_RUSSIAN, TT_NAME_MAC_ENCODING_RSYMBOL, TT_NAME_MAC_ENCODING_DEVANAGARI, TT_NAME_MAC_ENCODING_GURMUKHI, TT_NAME_MAC_ENCODING_GUJARATI, TT_NAME_MAC_ENCODING_ORIYA, TT_NAME_MAC_ENCODING_BENGALI, TT_NAME_MAC_ENCODING_TAMIL, TT_NAME_MAC_ENCODING_TELUGU, TT_NAME_MAC_ENCODING_KANNADA, TT_NAME_MAC_ENCODING_MALAYALAM, TT_NAME_MAC_ENCODING_SINHALESE, TT_NAME_MAC_ENCODING_BURMESE, TT_NAME_MAC_ENCODING_KHMER, TT_NAME_MAC_ENCODING_THAI, TT_NAME_MAC_ENCODING_LAOTIAN, TT_NAME_MAC_ENCODING_GEORGIAN, TT_NAME_MAC_ENCODING_ARMENIAN, TT_NAME_MAC_ENCODING_SIMPL_CHINESE, TT_NAME_MAC_ENCODING_TIBETAN, TT_NAME_MAC_ENCODING_MONGOLIAN, TT_NAME_MAC_ENCODING_GEEZ, TT_NAME_MAC_ENCODING_SLAVIC, TT_NAME_MAC_ENCODING_VIETNAMESE, TT_NAME_MAC_ENCODING_SINDHI, TT_NAME_MAC_ENCODING_UNINTERPRETED }; enum TT_NAME_MAC_LANGUAGE_ID { TT_NAME_MAC_LANGID_ENGLISH = 0, TT_NAME_MAC_LANGID_FRENCH, TT_NAME_MAC_LANGID_GERMAN, TT_NAME_MAC_LANGID_ITALIAN, TT_NAME_MAC_LANGID_DUTCH, TT_NAME_MAC_LANGID_SWEDISH, TT_NAME_MAC_LANGID_SPANISH, TT_NAME_MAC_LANGID_DANISH, TT_NAME_MAC_LANGID_PORTUGUESE, TT_NAME_MAC_LANGID_NORWEGIAN, TT_NAME_MAC_LANGID_HEBREW, TT_NAME_MAC_LANGID_JAPANESE, TT_NAME_MAC_LANGID_ARABIC, TT_NAME_MAC_LANGID_FINNISH, TT_NAME_MAC_LANGID_GREEK, TT_NAME_MAC_LANGID_ICELANDIC, TT_NAME_MAC_LANGID_MALTESE, TT_NAME_MAC_LANGID_TURKISH, TT_NAME_MAC_LANGID_CROATIAN, TT_NAME_MAC_LANGID_TRAD_CHINESE, TT_NAME_MAC_LANGID_URDU, TT_NAME_MAC_LANGID_HINDI, TT_NAME_MAC_LANGID_THAI, TT_NAME_MAC_LANGID_KOREAN, TT_NAME_MAC_LANGID_LITHUANIAN, TT_NAME_MAC_LANGID_POLISH, TT_NAME_MAC_LANGID_HUNGARIAN, TT_NAME_MAC_LANGID_ESTONIAN, TT_NAME_MAC_LANGID_LATVIAN, TT_NAME_MAC_LANGID_SAMI, TT_NAME_MAC_LANGID_FAROESE, TT_NAME_MAC_LANGID_FARSI, TT_NAME_MAC_LANGID_RUSSIAN, TT_NAME_MAC_LANGID_SIMPL_CHINESE, TT_NAME_MAC_LANGID_FLEMISH, TT_NAME_MAC_LANGID_GAELIC, TT_NAME_MAC_LANGID_ALBANIAN, TT_NAME_MAC_LANGID_ROMANIAN, TT_NAME_MAC_LANGID_CZECH, TT_NAME_MAC_LANGID_SLOVAK, TT_NAME_MAC_LANGID_SLOVENIAN, TT_NAME_MAC_LANGID_YIDDISH, TT_NAME_MAC_LANGID_SERBIAN, TT_NAME_MAC_LANGID_MACEDONIAN, TT_NAME_MAC_LANGID_BULGARIAN, TT_NAME_MAC_LANGID_UKRAINIAN, TT_NAME_MAC_LANGID_BYELORUSSIAN, TT_NAME_MAC_LANGID_UZBEK, TT_NAME_MAC_LANGID_KAZAKH, TT_NAME_MAC_LANGID_AZERB_CYR, TT_NAME_MAC_LANGID_AZERB_ARABIC, TT_NAME_MAC_LANGID_ARMENIAN, TT_NAME_MAC_LANGID_GEORGIAN, TT_NAME_MAC_LANGID_MOLDAVIAN, TT_NAME_MAC_LANGID_KIRGHIZ, TT_NAME_MAC_LANGID_TAJIKI, TT_NAME_MAC_LANGID_TURKMEN, TT_NAME_MAC_LANGID_MONGOLIAN, TT_NAME_MAC_LANGID_MONGOLIAN_CYR, TT_NAME_MAC_LANGID_PASHTO, TT_NAME_MAC_LANGID_KURDISH, TT_NAME_MAC_LANGID_KASHMIRI, TT_NAME_MAC_LANGID_SINDHI, TT_NAME_MAC_LANGID_TIBETAN, TT_NAME_MAC_LANGID_NEPALI, TT_NAME_MAC_LANGID_SANSKRIT, TT_NAME_MAC_LANGID_MARATHI, TT_NAME_MAC_LANGID_BENGALI, TT_NAME_MAC_LANGID_ASSAMESE, TT_NAME_MAC_LANGID_GUJARATI, TT_NAME_MAC_LANGID_PUNJABI, TT_NAME_MAC_LANGID_ORIYA, TT_NAME_MAC_LANGID_MALAYALAM, TT_NAME_MAC_LANGID_KANNADA, TT_NAME_MAC_LANGID_TAMIL, TT_NAME_MAC_LANGID_TELUGU, TT_NAME_MAC_LANGID_SINHALESE, TT_NAME_MAC_LANGID_BURMESE, TT_NAME_MAC_LANGID_KHMER, TT_NAME_MAC_LANGID_LAO, TT_NAME_MAC_LANGID_VIETNAMESE, TT_NAME_MAC_LANGID_INDONESIAN, TT_NAME_MAC_LANGID_TAGALONG, TT_NAME_MAC_LANGID_MALAY_ROMAN, TT_NAME_MAC_LANGID_MALAY_ARABIC, TT_NAME_MAC_LANGID_AMHARIC, TT_NAME_MAC_LANGID_TIGRINYA, TT_NAME_MAC_LANGID_GALLA, TT_NAME_MAC_LANGID_SOMALI, TT_NAME_MAC_LANGID_SWAHILI, TT_NAME_MAC_LANGID_KINYARWANDA, TT_NAME_MAC_LANGID_RUNDI, TT_NAME_MAC_LANGID_NYANJA, TT_NAME_MAC_LANGID_MALAGASY, TT_NAME_MAC_LANGID_ESPERANTO, TT_NAME_MAC_LANGID_WELSH, TT_NAME_MAC_LANGID_BASQUE, TT_NAME_MAC_LANGID_CATALAN, TT_NAME_MAC_LANGID_LATIN, TT_NAME_MAC_LANGID_QUENCHUA, TT_NAME_MAC_LANGID_GUARANI, TT_NAME_MAC_LANGID_AYMARA, TT_NAME_MAC_LANGID_TATAR, TT_NAME_MAC_LANGID_UIGHUR, TT_NAME_MAC_LANGID_DZONGKHA, TT_NAME_MAC_LANGID_JAVANESE, TT_NAME_MAC_LANGID_SUNDANESE, TT_NAME_MAC_LANGID_GALICIAN, TT_NAME_MAC_LANGID_AFRIKAANS, TT_NAME_MAC_LANGID_BRETON, TT_NAME_MAC_LANGID_INUKTITUT, TT_NAME_MAC_LANGID_SCOTTISH_GAELIC, TT_NAME_MAC_LANGID_MANX_GAELIC, TT_NAME_MAC_LANGID_IRISH_GAELIC, TT_NAME_MAC_LANGID_TONGAN, TT_NAME_MAC_LANGID_GREEK_POLYTONIC, TT_NAME_MAC_LANGID_GREENLANDIC, TT_NAME_MAC_LANGID_AZER_ROMAN }; /* Names are indexed with TT_NAME_MAC_LANGUAGE_ID values */ static const char name_mac_langid_to_locale[][10] = { "en-US", "fr-FR", "de-DE", "it-IT", "nl-NL", "sv-SE", "es-ES", "da-DA", "pt-PT", "no-NO", "he-IL", "ja-JP", "ar-AR", "fi-FI", "el-GR", "is-IS", "mt-MT", "tr-TR", "hr-HR", "zh-HK", "ur-PK", "hi-IN", "th-TH", "ko-KR", "lt-LT", "pl-PL", "hu-HU", "et-EE", "lv-LV", "se-NO", "fo-FO", "fa-IR", "ru-RU", "zh-CN", "nl-BE", "gd-GB", "sq-AL", "ro-RO", "cs-CZ", "sk-SK", "sl-SI", "", "sr-Latn", "mk-MK", "bg-BG", "uk-UA", "be-BY", "uz-Latn", "kk-KZ", "az-Cyrl-AZ", "az-AZ", "hy-AM", "ka-GE", "", "", "tg-TJ", "tk-TM", "mn-Mong", "mn-MN", "ps-AF", "ku-Arab", "", "sd-Arab", "bo-CN", "ne-NP", "sa-IN", "mr-IN", "bn-IN", "as-IN", "gu-IN", "pa-Arab", "or-IN", "ml-IN", "kn-IN", "ta-LK", "te-IN", "si-LK", "", "km-KH", "lo-LA", "vi-VN", "id-ID", "", "ms-MY", "ms-Arab", "am-ET", "ti-ET", "", "", "sw-KE", "rw-RW", "", "", "", "", "cy-GB", "eu-ES", "ca-ES", "", "", "", "", "tt-RU", "ug-CN", "", "", "", "gl-ES", "af-ZA", "br-FR", "iu-Latn-CA", "gd-GB", "", "ga-IE", "", "", "kl-GL", "az-Latn" }; enum OPENTYPE_STRING_ID { OPENTYPE_STRING_COPYRIGHT_NOTICE = 0, OPENTYPE_STRING_FAMILY_NAME, OPENTYPE_STRING_SUBFAMILY_NAME, OPENTYPE_STRING_UNIQUE_IDENTIFIER, OPENTYPE_STRING_FULL_FONTNAME, OPENTYPE_STRING_VERSION_STRING, OPENTYPE_STRING_POSTSCRIPT_FONTNAME, OPENTYPE_STRING_TRADEMARK, OPENTYPE_STRING_MANUFACTURER, OPENTYPE_STRING_DESIGNER, OPENTYPE_STRING_DESCRIPTION, OPENTYPE_STRING_VENDOR_URL, OPENTYPE_STRING_DESIGNER_URL, OPENTYPE_STRING_LICENSE_DESCRIPTION, OPENTYPE_STRING_LICENSE_INFO_URL, OPENTYPE_STRING_RESERVED_ID15, OPENTYPE_STRING_PREFERRED_FAMILY_NAME, OPENTYPE_STRING_PREFERRED_SUBFAMILY_NAME, OPENTYPE_STRING_COMPATIBLE_FULLNAME, OPENTYPE_STRING_SAMPLE_TEXT, OPENTYPE_STRING_POSTSCRIPT_CID_NAME, OPENTYPE_STRING_WWS_FAMILY_NAME, OPENTYPE_STRING_WWS_SUBFAMILY_NAME }; static const UINT16 dwriteid_to_opentypeid[DWRITE_INFORMATIONAL_STRING_POSTSCRIPT_CID_NAME+1] = { (UINT16)-1, /* DWRITE_INFORMATIONAL_STRING_NONE is not used */ OPENTYPE_STRING_COPYRIGHT_NOTICE, OPENTYPE_STRING_VERSION_STRING, OPENTYPE_STRING_TRADEMARK, OPENTYPE_STRING_MANUFACTURER, OPENTYPE_STRING_DESIGNER, OPENTYPE_STRING_DESIGNER_URL, OPENTYPE_STRING_DESCRIPTION, OPENTYPE_STRING_VENDOR_URL, OPENTYPE_STRING_LICENSE_DESCRIPTION, OPENTYPE_STRING_LICENSE_INFO_URL, OPENTYPE_STRING_FAMILY_NAME, OPENTYPE_STRING_SUBFAMILY_NAME, OPENTYPE_STRING_PREFERRED_FAMILY_NAME, OPENTYPE_STRING_PREFERRED_SUBFAMILY_NAME, OPENTYPE_STRING_SAMPLE_TEXT, OPENTYPE_STRING_FULL_FONTNAME, OPENTYPE_STRING_POSTSCRIPT_FONTNAME, OPENTYPE_STRING_POSTSCRIPT_CID_NAME }; /* CPAL table */ struct CPAL_Header_0 { USHORT version; USHORT numPaletteEntries; USHORT numPalette; USHORT numColorRecords; ULONG offsetFirstColorRecord; USHORT colorRecordIndices[1]; }; /* for version == 1, this comes after full CPAL_Header_0 */ struct CPAL_SubHeader_1 { ULONG offsetPaletteTypeArray; ULONG offsetPaletteLabelArray; ULONG offsetPaletteEntryLabelArray; }; struct CPAL_ColorRecord { BYTE blue; BYTE green; BYTE red; BYTE alpha; }; BOOL is_face_type_supported(DWRITE_FONT_FACE_TYPE type) { return (type == DWRITE_FONT_FACE_TYPE_CFF) || (type == DWRITE_FONT_FACE_TYPE_TRUETYPE) || (type == DWRITE_FONT_FACE_TYPE_TRUETYPE_COLLECTION) || (type == DWRITE_FONT_FACE_TYPE_RAW_CFF); } HRESULT opentype_analyze_font(IDWriteFontFileStream *stream, UINT32* font_count, DWRITE_FONT_FILE_TYPE *file_type, DWRITE_FONT_FACE_TYPE *face_type, BOOL *supported) { /* TODO: Do font validation */ DWRITE_FONT_FACE_TYPE face; const void *font_data; const char* tag; void *context; HRESULT hr; hr = IDWriteFontFileStream_ReadFileFragment(stream, &font_data, 0, sizeof(TTC_Header_V1), &context); if (FAILED(hr)) return hr; tag = font_data; *file_type = DWRITE_FONT_FILE_TYPE_UNKNOWN; face = DWRITE_FONT_FACE_TYPE_UNKNOWN; *font_count = 0; if (DWRITE_MAKE_OPENTYPE_TAG(tag[0], tag[1], tag[2], tag[3]) == MS_TTCF_TAG) { const TTC_Header_V1 *header = font_data; *font_count = GET_BE_DWORD(header->numFonts); *file_type = DWRITE_FONT_FILE_TYPE_TRUETYPE_COLLECTION; face = DWRITE_FONT_FACE_TYPE_TRUETYPE_COLLECTION; } else if (GET_BE_DWORD(*(DWORD*)font_data) == 0x10000) { *font_count = 1; *file_type = DWRITE_FONT_FILE_TYPE_TRUETYPE; face = DWRITE_FONT_FACE_TYPE_TRUETYPE; } else if (DWRITE_MAKE_OPENTYPE_TAG(tag[0], tag[1], tag[2], tag[3]) == MS_OTTO_TAG) { *font_count = 1; *file_type = DWRITE_FONT_FILE_TYPE_CFF; face = DWRITE_FONT_FACE_TYPE_CFF; } if (face_type) *face_type = face; *supported = is_face_type_supported(face); IDWriteFontFileStream_ReleaseFileFragment(stream, context); return S_OK; } HRESULT opentype_get_font_table(IDWriteFontFileStream *stream, DWRITE_FONT_FACE_TYPE type, UINT32 font_index, UINT32 tag, const void **table_data, void **table_context, UINT32 *table_size, BOOL *found) { HRESULT hr; TTC_SFNT_V1 *font_header = NULL; void *sfnt_context; TT_TableRecord *table_record = NULL; void *table_record_context; int table_count, table_offset = 0; int i; if (found) *found = FALSE; if (table_size) *table_size = 0; if (type == DWRITE_FONT_FACE_TYPE_TRUETYPE_COLLECTION) { const TTC_Header_V1 *ttc_header; void * ttc_context; hr = IDWriteFontFileStream_ReadFileFragment(stream, (const void**)&ttc_header, 0, sizeof(*ttc_header), &ttc_context); if (SUCCEEDED(hr)) { if (font_index >= GET_BE_DWORD(ttc_header->numFonts)) hr = E_INVALIDARG; else { table_offset = GET_BE_DWORD(ttc_header->OffsetTable[font_index]); hr = IDWriteFontFileStream_ReadFileFragment(stream, (const void**)&font_header, table_offset, sizeof(*font_header), &sfnt_context); } IDWriteFontFileStream_ReleaseFileFragment(stream, ttc_context); } } else hr = IDWriteFontFileStream_ReadFileFragment(stream, (const void**)&font_header, 0, sizeof(*font_header), &sfnt_context); if (FAILED(hr)) return hr; table_count = GET_BE_WORD(font_header->numTables); table_offset += sizeof(*font_header); for (i = 0; i < table_count; i++) { hr = IDWriteFontFileStream_ReadFileFragment(stream, (const void**)&table_record, table_offset, sizeof(*table_record), &table_record_context); if (FAILED(hr)) break; if (DWRITE_MAKE_OPENTYPE_TAG(table_record->tag[0], table_record->tag[1], table_record->tag[2], table_record->tag[3]) == tag) break; IDWriteFontFileStream_ReleaseFileFragment(stream, table_record_context); table_offset += sizeof(*table_record); } IDWriteFontFileStream_ReleaseFileFragment(stream, sfnt_context); if (SUCCEEDED(hr) && i < table_count) { int offset = GET_BE_DWORD(table_record->offset); int length = GET_BE_DWORD(table_record->length); IDWriteFontFileStream_ReleaseFileFragment(stream, table_record_context); if (found) *found = TRUE; if (table_size) *table_size = length; hr = IDWriteFontFileStream_ReadFileFragment(stream, table_data, offset, length, table_context); } return hr; } /********** * CMAP **********/ static UINT32 opentype_cmap_get_unicode_ranges_count(const CMAP_Header *CMAP_Table) { UINT32 count = 0; int i; for (i = 0; i < GET_BE_WORD(CMAP_Table->numTables); i++) { WORD type; WORD *table; if (GET_BE_WORD(CMAP_Table->tables[i].platformID) != 3) continue; table = (WORD*)(((BYTE*)CMAP_Table) + GET_BE_DWORD(CMAP_Table->tables[i].offset)); type = GET_BE_WORD(*table); TRACE("table type %i\n", type); switch (type) { case OPENTYPE_CMAP_TABLE_SEGMENT_MAPPING: { CMAP_SegmentMapping_0 *format = (CMAP_SegmentMapping_0*)table; count += GET_BE_WORD(format->segCountX2)/2; break; } case OPENTYPE_CMAP_TABLE_SEGMENTED_COVERAGE: { CMAP_SegmentedCoverage *format = (CMAP_SegmentedCoverage*)table; count += GET_BE_DWORD(format->nGroups); break; } default: FIXME("table type %i unhandled.\n", type); } } return count; } HRESULT opentype_cmap_get_unicode_ranges(void *data, UINT32 max_count, DWRITE_UNICODE_RANGE *ranges, UINT32 *count) { CMAP_Header *CMAP_Table = data; int i, k = 0; if (!CMAP_Table) return E_FAIL; *count = opentype_cmap_get_unicode_ranges_count(CMAP_Table); for (i = 0; i < GET_BE_WORD(CMAP_Table->numTables) && k < max_count; i++) { WORD type; WORD *table; int j; if (GET_BE_WORD(CMAP_Table->tables[i].platformID) != 3) continue; table = (WORD*)(((BYTE*)CMAP_Table) + GET_BE_DWORD(CMAP_Table->tables[i].offset)); type = GET_BE_WORD(*table); TRACE("table type %i\n", type); switch (type) { case OPENTYPE_CMAP_TABLE_SEGMENT_MAPPING: { CMAP_SegmentMapping_0 *format = (CMAP_SegmentMapping_0*)table; UINT16 segment_count = GET_BE_WORD(format->segCountX2)/2; UINT16 *startCode = (WORD*)((BYTE*)format + sizeof(CMAP_SegmentMapping_0) + (sizeof(WORD) * segment_count)); for (j = 0; j < segment_count && GET_BE_WORD(format->endCode[j]) < 0xffff && k < max_count; j++, k++) { ranges[k].first = GET_BE_WORD(startCode[j]); ranges[k].last = GET_BE_WORD(format->endCode[j]); } break; } case OPENTYPE_CMAP_TABLE_SEGMENTED_COVERAGE: { CMAP_SegmentedCoverage *format = (CMAP_SegmentedCoverage*)table; for (j = 0; j < GET_BE_DWORD(format->nGroups) && k < max_count; j++, k++) { ranges[k].first = GET_BE_DWORD(format->groups[j].startCharCode); ranges[k].last = GET_BE_DWORD(format->groups[j].endCharCode); } break; } default: FIXME("table type %i unhandled.\n", type); } } return *count > max_count ? E_NOT_SUFFICIENT_BUFFER : S_OK; } void opentype_get_font_metrics(IDWriteFontFileStream *stream, DWRITE_FONT_FACE_TYPE face_type, UINT32 face_index, DWRITE_FONT_METRICS1 *metrics, DWRITE_CARET_METRICS *caret) { void *os2_context, *head_context, *post_context, *hhea_context; const TT_OS2_V2 *tt_os2; const TT_HEAD *tt_head; const TT_POST *tt_post; const TT_HHEA *tt_hhea; memset(metrics, 0, sizeof(*metrics)); opentype_get_font_table(stream, face_type, face_index, MS_OS2_TAG, (const void**)&tt_os2, &os2_context, NULL, NULL); opentype_get_font_table(stream, face_type, face_index, MS_HEAD_TAG, (const void**)&tt_head, &head_context, NULL, NULL); opentype_get_font_table(stream, face_type, face_index, MS_POST_TAG, (const void**)&tt_post, &post_context, NULL, NULL); opentype_get_font_table(stream, face_type, face_index, MS_HHEA_TAG, (const void**)&tt_hhea, &hhea_context, NULL, NULL); if (tt_head) { metrics->designUnitsPerEm = GET_BE_WORD(tt_head->unitsPerEm); metrics->glyphBoxLeft = GET_BE_WORD(tt_head->xMin); metrics->glyphBoxTop = GET_BE_WORD(tt_head->yMax); metrics->glyphBoxRight = GET_BE_WORD(tt_head->xMax); metrics->glyphBoxBottom = GET_BE_WORD(tt_head->yMin); } if (caret) { if (tt_hhea) { caret->slopeRise = GET_BE_WORD(tt_hhea->caretSlopeRise); caret->slopeRun = GET_BE_WORD(tt_hhea->caretSlopeRun); caret->offset = GET_BE_WORD(tt_hhea->caretOffset); } else { caret->slopeRise = 0; caret->slopeRun = 0; caret->offset = 0; } } if (tt_os2) { USHORT version = GET_BE_WORD(tt_os2->version); metrics->ascent = GET_BE_WORD(tt_os2->usWinAscent); /* Some fonts have usWinDescent value stored as signed short, which could be wrongly interpreted as large unsigned value. */ metrics->descent = abs((SHORT)GET_BE_WORD(tt_os2->usWinDescent)); /* line gap is estimated using two sets of ascender/descender values and 'hhea' line gap */ if (tt_hhea) { SHORT descender = (SHORT)GET_BE_WORD(tt_hhea->descender); INT32 linegap; linegap = GET_BE_WORD(tt_hhea->ascender) + abs(descender) + GET_BE_WORD(tt_hhea->linegap) - metrics->ascent - metrics->descent; metrics->lineGap = linegap > 0 ? linegap : 0; } metrics->strikethroughPosition = GET_BE_WORD(tt_os2->yStrikeoutPosition); metrics->strikethroughThickness = GET_BE_WORD(tt_os2->yStrikeoutSize); metrics->subscriptPositionX = GET_BE_WORD(tt_os2->ySubscriptXOffset); /* Y offset is stored as positive offset below baseline */ metrics->subscriptPositionY = -GET_BE_WORD(tt_os2->ySubscriptYOffset); metrics->subscriptSizeX = GET_BE_WORD(tt_os2->ySubscriptXSize); metrics->subscriptSizeY = GET_BE_WORD(tt_os2->ySubscriptYSize); metrics->superscriptPositionX = GET_BE_WORD(tt_os2->ySuperscriptXOffset); metrics->superscriptPositionY = GET_BE_WORD(tt_os2->ySuperscriptYOffset); metrics->superscriptSizeX = GET_BE_WORD(tt_os2->ySuperscriptXSize); metrics->superscriptSizeY = GET_BE_WORD(tt_os2->ySuperscriptYSize); /* version 2 fields */ if (version >= 2) { metrics->capHeight = GET_BE_WORD(tt_os2->sCapHeight); metrics->xHeight = GET_BE_WORD(tt_os2->sxHeight); } /* version 4 fields */ if (version >= 4) { if (GET_BE_WORD(tt_os2->fsSelection) & OS2_FSSELECTION_USE_TYPO_METRICS) { SHORT descent = GET_BE_WORD(tt_os2->sTypoDescender); metrics->ascent = GET_BE_WORD(tt_os2->sTypoAscender); metrics->descent = descent < 0 ? -descent : 0; metrics->lineGap = GET_BE_WORD(tt_os2->sTypoLineGap); metrics->hasTypographicMetrics = TRUE; } } } if (tt_post) { metrics->underlinePosition = GET_BE_WORD(tt_post->underlinePosition); metrics->underlineThickness = GET_BE_WORD(tt_post->underlineThickness); } /* estimate missing metrics */ if (metrics->xHeight == 0) metrics->xHeight = metrics->designUnitsPerEm / 2; if (metrics->capHeight == 0) metrics->capHeight = metrics->designUnitsPerEm * 7 / 10; if (tt_os2) IDWriteFontFileStream_ReleaseFileFragment(stream, os2_context); if (tt_head) IDWriteFontFileStream_ReleaseFileFragment(stream, head_context); if (tt_post) IDWriteFontFileStream_ReleaseFileFragment(stream, post_context); if (tt_hhea) IDWriteFontFileStream_ReleaseFileFragment(stream, hhea_context); } void opentype_get_font_properties(IDWriteFontFileStream *stream, DWRITE_FONT_FACE_TYPE type, UINT32 index, struct dwrite_font_props *props) { void *os2_context, *head_context; const TT_OS2_V2 *tt_os2; const TT_HEAD *tt_head; opentype_get_font_table(stream, type, index, MS_OS2_TAG, (const void**)&tt_os2, &os2_context, NULL, NULL); opentype_get_font_table(stream, type, index, MS_HEAD_TAG, (const void**)&tt_head, &head_context, NULL, NULL); /* default stretch, weight and style to normal */ props->stretch = DWRITE_FONT_STRETCH_NORMAL; props->weight = DWRITE_FONT_WEIGHT_NORMAL; props->style = DWRITE_FONT_STYLE_NORMAL; memset(&props->panose, 0, sizeof(props->panose)); /* DWRITE_FONT_STRETCH enumeration values directly match font data values */ if (tt_os2) { USHORT version = GET_BE_WORD(tt_os2->version); USHORT fsSelection = GET_BE_WORD(tt_os2->fsSelection); USHORT usWeightClass = GET_BE_WORD(tt_os2->usWeightClass); if (GET_BE_WORD(tt_os2->usWidthClass) <= DWRITE_FONT_STRETCH_ULTRA_EXPANDED) props->stretch = GET_BE_WORD(tt_os2->usWidthClass); if (usWeightClass >= 1 && usWeightClass <= 9) usWeightClass *= 100; if (usWeightClass > DWRITE_FONT_WEIGHT_ULTRA_BLACK) props->weight = DWRITE_FONT_WEIGHT_ULTRA_BLACK; else props->weight = usWeightClass; if (version >= 4 && (fsSelection & OS2_FSSELECTION_OBLIQUE)) props->style = DWRITE_FONT_STYLE_OBLIQUE; else if (fsSelection & OS2_FSSELECTION_ITALIC) props->style = DWRITE_FONT_STYLE_ITALIC; memcpy(&props->panose, &tt_os2->panose, sizeof(props->panose)); } else if (tt_head) { USHORT macStyle = GET_BE_WORD(tt_head->macStyle); if (macStyle & TT_HEAD_MACSTYLE_CONDENSED) props->stretch = DWRITE_FONT_STRETCH_CONDENSED; else if (macStyle & TT_HEAD_MACSTYLE_EXTENDED) props->stretch = DWRITE_FONT_STRETCH_EXPANDED; if (macStyle & TT_HEAD_MACSTYLE_BOLD) props->weight = DWRITE_FONT_WEIGHT_BOLD; if (macStyle & TT_HEAD_MACSTYLE_ITALIC) props->style = DWRITE_FONT_STYLE_ITALIC; } TRACE("stretch=%d, weight=%d, style %d\n", props->stretch, props->weight, props->style); if (tt_os2) IDWriteFontFileStream_ReleaseFileFragment(stream, os2_context); if (tt_head) IDWriteFontFileStream_ReleaseFileFragment(stream, head_context); } static UINT get_name_record_codepage(enum OPENTYPE_PLATFORM_ID platform, USHORT encoding) { UINT codepage = 0; switch (platform) { case OPENTYPE_PLATFORM_UNICODE: break; case OPENTYPE_PLATFORM_MAC: switch (encoding) { case TT_NAME_MAC_ENCODING_ROMAN: codepage = 10000; break; case TT_NAME_MAC_ENCODING_JAPANESE: codepage = 10001; break; case TT_NAME_MAC_ENCODING_TRAD_CHINESE: codepage = 10002; break; case TT_NAME_MAC_ENCODING_KOREAN: codepage = 10003; break; case TT_NAME_MAC_ENCODING_ARABIC: codepage = 10004; break; case TT_NAME_MAC_ENCODING_HEBREW: codepage = 10005; break; case TT_NAME_MAC_ENCODING_GREEK: codepage = 10006; break; case TT_NAME_MAC_ENCODING_RUSSIAN: codepage = 10007; break; case TT_NAME_MAC_ENCODING_SIMPL_CHINESE: codepage = 10008; break; case TT_NAME_MAC_ENCODING_THAI: codepage = 10021; break; default: FIXME("encoding %u not handled, platform %d.\n", encoding, platform); break; } break; case OPENTYPE_PLATFORM_WIN: switch (encoding) { case TT_NAME_WINDOWS_ENCODING_SYMBOL: case TT_NAME_WINDOWS_ENCODING_UCS2: break; case TT_NAME_WINDOWS_ENCODING_SJIS: codepage = 932; break; case TT_NAME_WINDOWS_ENCODING_PRC: codepage = 936; break; case TT_NAME_WINDOWS_ENCODING_BIG5: codepage = 950; break; case TT_NAME_WINDOWS_ENCODING_WANSUNG: codepage = 20949; break; case TT_NAME_WINDOWS_ENCODING_JOHAB: codepage = 1361; break; default: FIXME("encoding %u not handled, platform %d.\n", encoding, platform); break; } break; default: FIXME("unknown platform %d\n", platform); } return codepage; } static void get_name_record_locale(enum OPENTYPE_PLATFORM_ID platform, USHORT lang_id, WCHAR *locale, USHORT locale_len) { static const WCHAR enusW[] = {'e','n','-','U','S',0}; switch (platform) { case OPENTYPE_PLATFORM_MAC: { const char *locale_name = NULL; if (lang_id > TT_NAME_MAC_LANGID_AZER_ROMAN) ERR("invalid mac lang id %d\n", lang_id); else if (!name_mac_langid_to_locale[lang_id][0]) FIXME("failed to map mac lang id %d to locale name\n", lang_id); else locale_name = name_mac_langid_to_locale[lang_id]; if (locale_name) MultiByteToWideChar(CP_ACP, 0, name_mac_langid_to_locale[lang_id], -1, locale, locale_len); else strcpyW(locale, enusW); break; } case OPENTYPE_PLATFORM_WIN: if (!LCIDToLocaleName(MAKELCID(lang_id, SORT_DEFAULT), locale, locale_len, 0)) { FIXME("failed to get locale name for lcid=0x%08x\n", MAKELCID(lang_id, SORT_DEFAULT)); strcpyW(locale, enusW); } break; default: FIXME("unknown platform %d\n", platform); } } static HRESULT opentype_get_font_strings_from_id(const void *table_data, enum OPENTYPE_STRING_ID id, IDWriteLocalizedStrings **strings) { const TT_NAME_V0 *header; BYTE *storage_area = 0; USHORT count = 0; WORD format; BOOL exists; HRESULT hr; int i; if (!table_data) return E_FAIL; hr = create_localizedstrings(strings); if (FAILED(hr)) return hr; header = table_data; format = GET_BE_WORD(header->format); switch (format) { case 0: case 1: break; default: FIXME("unsupported NAME format %d\n", format); } storage_area = (LPBYTE)table_data + GET_BE_WORD(header->stringOffset); count = GET_BE_WORD(header->count); exists = FALSE; for (i = 0; i < count; i++) { const TT_NameRecord *record = &header->nameRecord[i]; USHORT lang_id, length, offset, encoding, platform; if (GET_BE_WORD(record->nameID) != id) continue; exists = TRUE; /* Right now only accept unicode and windows encoded fonts */ platform = GET_BE_WORD(record->platformID); if (platform != OPENTYPE_PLATFORM_UNICODE && platform != OPENTYPE_PLATFORM_MAC && platform != OPENTYPE_PLATFORM_WIN) { FIXME("platform %i not supported\n", platform); continue; } /* Skip such entries for now, as it's not clear which locale is implied when unicode platform is used. Also fonts tend to duplicate those strings as WIN platform entries. */ if (platform == OPENTYPE_PLATFORM_UNICODE) continue; lang_id = GET_BE_WORD(record->languageID); length = GET_BE_WORD(record->length); offset = GET_BE_WORD(record->offset); encoding = GET_BE_WORD(record->encodingID); if (lang_id < 0x8000) { WCHAR locale[LOCALE_NAME_MAX_LENGTH]; WCHAR *name_string; UINT codepage; codepage = get_name_record_codepage(platform, encoding); get_name_record_locale(platform, lang_id, locale, sizeof(locale)/sizeof(WCHAR)); if (codepage) { DWORD len = MultiByteToWideChar(codepage, 0, (LPSTR)(storage_area + offset), length, NULL, 0); name_string = heap_alloc(sizeof(WCHAR) * (len+1)); MultiByteToWideChar(codepage, 0, (LPSTR)(storage_area + offset), length, name_string, len); name_string[len] = 0; } else { int i; length /= sizeof(WCHAR); name_string = heap_strdupnW((LPWSTR)(storage_area + offset), length); for (i = 0; i < length; i++) name_string[i] = GET_BE_WORD(name_string[i]); } TRACE("string %s for locale %s found\n", debugstr_w(name_string), debugstr_w(locale)); add_localizedstring(*strings, locale, name_string); heap_free(name_string); } else { FIXME("handle NAME format 1\n"); continue; } } if (!exists) { IDWriteLocalizedStrings_Release(*strings); *strings = NULL; } return exists ? S_OK : E_FAIL; } /* Provides a conversion from DWRITE to OpenType name ids, input id be valid, it's not checked. */ HRESULT opentype_get_font_info_strings(const void *table_data, DWRITE_INFORMATIONAL_STRING_ID id, IDWriteLocalizedStrings **strings) { return opentype_get_font_strings_from_id(table_data, dwriteid_to_opentypeid[id], strings); } /* FamilyName locating order is WWS Family Name -> Preferred Family Name -> Family Name. If font claims to have 'Preferred Family Name' in WWS format, then WWS name is not used. */ HRESULT opentype_get_font_familyname(IDWriteFontFileStream *stream, DWRITE_FONT_FACE_TYPE facetype, UINT32 index, IDWriteLocalizedStrings **names) { const TT_OS2_V2 *tt_os2; void *os2_context, *name_context; const void *name_table; HRESULT hr; opentype_get_font_table(stream, facetype, index, MS_OS2_TAG, (const void**)&tt_os2, &os2_context, NULL, NULL); opentype_get_font_table(stream, facetype, index, MS_NAME_TAG, &name_table, &name_context, NULL, NULL); *names = NULL; /* if Preferred Family doesn't conform to WWS model try WWS name */ if (tt_os2 && !(GET_BE_WORD(tt_os2->fsSelection) & OS2_FSSELECTION_WWS)) hr = opentype_get_font_strings_from_id(name_table, OPENTYPE_STRING_WWS_FAMILY_NAME, names); else hr = E_FAIL; if (FAILED(hr)) hr = opentype_get_font_strings_from_id(name_table, OPENTYPE_STRING_PREFERRED_FAMILY_NAME, names); if (FAILED(hr)) hr = opentype_get_font_strings_from_id(name_table, OPENTYPE_STRING_FAMILY_NAME, names); if (tt_os2) IDWriteFontFileStream_ReleaseFileFragment(stream, os2_context); if (name_context) IDWriteFontFileStream_ReleaseFileFragment(stream, name_context); return hr; } /* FaceName locating order is WWS Face Name -> Preferred Face Name -> Face Name. If font claims to have 'Preferred Face Name' in WWS format, then WWS name is not used. */ HRESULT opentype_get_font_facename(IDWriteFontFileStream *stream, DWRITE_FONT_FACE_TYPE facetype, UINT32 index, IDWriteLocalizedStrings **names) { const TT_OS2_V2 *tt_os2; void *os2_context, *name_context; const void *name_table; HRESULT hr; opentype_get_font_table(stream, facetype, index, MS_OS2_TAG, (const void**)&tt_os2, &os2_context, NULL, NULL); opentype_get_font_table(stream, facetype, index, MS_NAME_TAG, &name_table, &name_context, NULL, NULL); *names = NULL; /* if Preferred Family doesn't conform to WWS model try WWS name */ if (tt_os2 && !(GET_BE_WORD(tt_os2->fsSelection) & OS2_FSSELECTION_WWS)) hr = opentype_get_font_strings_from_id(name_table, OPENTYPE_STRING_WWS_SUBFAMILY_NAME, names); else hr = E_FAIL; if (FAILED(hr)) hr = opentype_get_font_strings_from_id(name_table, OPENTYPE_STRING_PREFERRED_SUBFAMILY_NAME, names); if (FAILED(hr)) hr = opentype_get_font_strings_from_id(name_table, OPENTYPE_STRING_SUBFAMILY_NAME, names); if (tt_os2) IDWriteFontFileStream_ReleaseFileFragment(stream, os2_context); if (name_context) IDWriteFontFileStream_ReleaseFileFragment(stream, name_context); return hr; } static inline const OT_Script *opentype_get_script(const OT_ScriptList *scriptlist, UINT32 scripttag) { UINT16 j; for (j = 0; j < GET_BE_WORD(scriptlist->ScriptCount); j++) { const char *tag = scriptlist->ScriptRecord[j].ScriptTag; if (scripttag == DWRITE_MAKE_OPENTYPE_TAG(tag[0], tag[1], tag[2], tag[3])) return (OT_Script*)((BYTE*)scriptlist + GET_BE_WORD(scriptlist->ScriptRecord[j].Script)); } return NULL; } static inline const OT_LangSys *opentype_get_langsys(const OT_Script *script, UINT32 languagetag) { UINT16 j; for (j = 0; j < GET_BE_WORD(script->LangSysCount); j++) { const char *tag = script->LangSysRecord[j].LangSysTag; if (languagetag == DWRITE_MAKE_OPENTYPE_TAG(tag[0], tag[1], tag[2], tag[3])) return (OT_LangSys*)((BYTE*)script + GET_BE_WORD(script->LangSysRecord[j].LangSys)); } return NULL; } static void opentype_add_font_features(const GPOS_GSUB_Header *header, const OT_LangSys *langsys, UINT32 max_tagcount, UINT32 *count, DWRITE_FONT_FEATURE_TAG *tags) { const OT_FeatureList *features = (const OT_FeatureList*)((const BYTE*)header + GET_BE_WORD(header->FeatureList)); UINT16 j; for (j = 0; j < GET_BE_WORD(langsys->FeatureCount); j++) { const OT_FeatureRecord *feature = &features->FeatureRecord[langsys->FeatureIndex[j]]; const char *tag = feature->FeatureTag; if (*count < max_tagcount) tags[*count] = DWRITE_MAKE_OPENTYPE_TAG(tag[0], tag[1], tag[2], tag[3]); (*count)++; } } HRESULT opentype_get_typographic_features(IDWriteFontFace *fontface, UINT32 scripttag, UINT32 languagetag, UINT32 max_tagcount, UINT32 *count, DWRITE_FONT_FEATURE_TAG *tags) { UINT32 tables[2] = { MS_GSUB_TAG, MS_GPOS_TAG }; HRESULT hr; UINT8 i; *count = 0; for (i = 0; i < sizeof(tables)/sizeof(tables[0]); i++) { const OT_ScriptList *scriptlist; const GPOS_GSUB_Header *header; const OT_Script *script; const void *ptr; void *context; UINT32 size; BOOL exists; exists = FALSE; hr = IDWriteFontFace_TryGetFontTable(fontface, tables[i], &ptr, &size, &context, &exists); if (FAILED(hr)) return hr; if (!exists) continue; header = (const GPOS_GSUB_Header*)ptr; scriptlist = (const OT_ScriptList*)((const BYTE*)header + GET_BE_WORD(header->ScriptList)); script = opentype_get_script(scriptlist, scripttag); if (script) { const OT_LangSys *langsys = opentype_get_langsys(script, languagetag); if (langsys) opentype_add_font_features(header, langsys, max_tagcount, count, tags); } IDWriteFontFace_ReleaseFontTable(fontface, context); } return *count > max_tagcount ? E_NOT_SUFFICIENT_BUFFER : S_OK; } static const struct VDMX_group *find_vdmx_group(const struct VDMX_Header *hdr) { WORD num_ratios, i, group_offset = 0; struct VDMX_Ratio *ratios = (struct VDMX_Ratio*)(hdr + 1); BYTE dev_x_ratio = 1, dev_y_ratio = 1; num_ratios = GET_BE_WORD(hdr->numRatios); for (i = 0; i < num_ratios; i++) { if (!ratios[i].bCharSet) continue; if ((ratios[i].xRatio == 0 && ratios[i].yStartRatio == 0 && ratios[i].yEndRatio == 0) || (ratios[i].xRatio == dev_x_ratio && ratios[i].yStartRatio <= dev_y_ratio && ratios[i].yEndRatio >= dev_y_ratio)) { group_offset = GET_BE_WORD(*((WORD *)(ratios + num_ratios) + i)); break; } } if (group_offset) return (const struct VDMX_group *)((BYTE *)hdr + group_offset); return NULL; } BOOL opentype_get_vdmx_size(const void *data, INT emsize, UINT16 *ascent, UINT16 *descent) { const struct VDMX_Header *hdr = (const struct VDMX_Header*)data; const struct VDMX_group *group; const struct VDMX_vTable *tables; WORD recs, i; if (!data) return FALSE; group = find_vdmx_group(hdr); if (!group) return FALSE; recs = GET_BE_WORD(group->recs); if (emsize < group->startsz || emsize >= group->endsz) return FALSE; tables = (const struct VDMX_vTable *)(group + 1); for (i = 0; i < recs; i++) { WORD ppem = GET_BE_WORD(tables[i].yPelHeight); if (ppem > emsize) { FIXME("interpolate %d\n", emsize); return FALSE; } if (ppem == emsize) { *ascent = (SHORT)GET_BE_WORD(tables[i].yMax); *descent = -(SHORT)GET_BE_WORD(tables[i].yMin); return TRUE; } } return FALSE; } WORD opentype_get_gasp_flags(const WORD *ptr, UINT32 size, INT emsize) { WORD num_recs, version; WORD flags = 0; if (!ptr) return 0; version = GET_BE_WORD( *ptr++ ); num_recs = GET_BE_WORD( *ptr++ ); if (version > 1 || size < (num_recs * 2 + 2) * sizeof(WORD)) { ERR("unsupported gasp table: ver %d size %d recs %d\n", version, size, num_recs); goto done; } while (num_recs--) { flags = GET_BE_WORD( *(ptr + 1) ); if (emsize <= GET_BE_WORD( *ptr )) break; ptr += 2; } done: return flags; } UINT32 opentype_get_cpal_palettecount(const void *cpal) { const struct CPAL_Header_0 *header = (const struct CPAL_Header_0*)cpal; return header ? GET_BE_WORD(header->numPalette) : 0; } UINT32 opentype_get_cpal_paletteentrycount(const void *cpal) { const struct CPAL_Header_0 *header = (const struct CPAL_Header_0*)cpal; return header ? GET_BE_WORD(header->numPaletteEntries) : 0; } HRESULT opentype_get_cpal_entries(const void *cpal, UINT32 palette, UINT32 first_entry_index, UINT32 entry_count, DWRITE_COLOR_F *entries) { const struct CPAL_Header_0 *header = (const struct CPAL_Header_0*)cpal; const struct CPAL_ColorRecord *records; UINT32 palettecount, entrycount, i; if (!header) return DWRITE_E_NOCOLOR; palettecount = GET_BE_WORD(header->numPalette); if (palette >= palettecount) return DWRITE_E_NOCOLOR; entrycount = GET_BE_WORD(header->numPaletteEntries); if (first_entry_index + entry_count > entrycount) return E_INVALIDARG; records = (const struct CPAL_ColorRecord*)((BYTE*)cpal + GET_BE_DWORD(header->offsetFirstColorRecord)); first_entry_index += GET_BE_WORD(header->colorRecordIndices[palette]); for (i = 0; i < entry_count; i++) { entries[i].r = records[first_entry_index + i].red / 255.0f; entries[i].g = records[first_entry_index + i].green / 255.0f; entries[i].b = records[first_entry_index + i].blue / 255.0f; entries[i].a = records[first_entry_index + i].alpha / 255.0f; } return S_OK; }