/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ #include "mozilla/DebugOnly.h" #include #include "mozilla/Logging.h" #include "mozilla/Sprintf.h" #include "gfxGDIFontList.h" #include "gfxWindowsPlatform.h" #include "gfxUserFontSet.h" #include "gfxFontUtils.h" #include "gfxGDIFont.h" #include "nsServiceManagerUtils.h" #include "nsTArray.h" #include "nsUnicharUtils.h" #include "nsDirectoryServiceUtils.h" #include "nsDirectoryServiceDefs.h" #include "nsAppDirectoryServiceDefs.h" #include "nsISimpleEnumerator.h" #include "nsIWindowsRegKey.h" #include "gfxFontConstants.h" #include "GeckoProfiler.h" #include "mozilla/MemoryReporting.h" #include "mozilla/Telemetry.h" #include "mozilla/WindowsVersion.h" #include using namespace mozilla; #define ROUND(x) floor((x) + 0.5) #ifndef CLEARTYPE_QUALITY #define CLEARTYPE_QUALITY 5 #endif #define LOG_FONTLIST(args) MOZ_LOG(gfxPlatform::GetLog(eGfxLog_fontlist), \ LogLevel::Debug, args) #define LOG_FONTLIST_ENABLED() MOZ_LOG_TEST( \ gfxPlatform::GetLog(eGfxLog_fontlist), \ LogLevel::Debug) #define LOG_CMAPDATA_ENABLED() MOZ_LOG_TEST( \ gfxPlatform::GetLog(eGfxLog_cmapdata), \ LogLevel::Debug) static __inline void BuildKeyNameFromFontName(nsAString &aName) { if (aName.Length() >= LF_FACESIZE) aName.Truncate(LF_FACESIZE - 1); ToLowerCase(aName); } // Implementation of gfxPlatformFontList for Win32 GDI, // using GDI font enumeration APIs to get the list of fonts class WinUserFontData : public gfxUserFontData { public: explicit WinUserFontData(HANDLE aFontRef) : mFontRef(aFontRef) { } virtual ~WinUserFontData() { DebugOnly success; success = RemoveFontMemResourceEx(mFontRef); #if DEBUG if (!success) { char buf[256]; SprintfLiteral(buf, "error deleting font handle (%p) - RemoveFontMemResourceEx failed", mFontRef); NS_ASSERTION(success, buf); } #endif } HANDLE mFontRef; }; BYTE FontTypeToOutPrecision(uint8_t fontType) { BYTE ret; switch (fontType) { case GFX_FONT_TYPE_TT_OPENTYPE: case GFX_FONT_TYPE_TRUETYPE: ret = OUT_TT_ONLY_PRECIS; break; case GFX_FONT_TYPE_PS_OPENTYPE: ret = OUT_PS_ONLY_PRECIS; break; case GFX_FONT_TYPE_TYPE1: ret = OUT_OUTLINE_PRECIS; break; case GFX_FONT_TYPE_RASTER: ret = OUT_RASTER_PRECIS; break; case GFX_FONT_TYPE_DEVICE: ret = OUT_DEVICE_PRECIS; break; default: ret = OUT_DEFAULT_PRECIS; } return ret; } /*************************************************************** * * GDIFontEntry * */ GDIFontEntry::GDIFontEntry(const nsAString& aFaceName, gfxWindowsFontType aFontType, uint8_t aStyle, uint16_t aWeight, int16_t aStretch, gfxUserFontData *aUserFontData, bool aFamilyHasItalicFace) : gfxFontEntry(aFaceName), mWindowsFamily(0), mWindowsPitch(0), mFontType(aFontType), mForceGDI(false), mFamilyHasItalicFace(aFamilyHasItalicFace), mCharset(), mUnicodeRanges() { mUserFontData.reset(aUserFontData); mStyle = aStyle; mWeight = aWeight; mStretch = aStretch; if (IsType1()) mForceGDI = true; mIsDataUserFont = aUserFontData != nullptr; InitLogFont(aFaceName, aFontType); } nsresult GDIFontEntry::ReadCMAP(FontInfoData *aFontInfoData) { PROFILER_LABEL_FUNC(js::ProfileEntry::Category::OTHER); // attempt this once, if errors occur leave a blank cmap if (mCharacterMap) { return NS_OK; } // skip non-SFNT fonts completely if (mFontType != GFX_FONT_TYPE_PS_OPENTYPE && mFontType != GFX_FONT_TYPE_TT_OPENTYPE && mFontType != GFX_FONT_TYPE_TRUETYPE) { mCharacterMap = new gfxCharacterMap(); mCharacterMap->mBuildOnTheFly = true; return NS_ERROR_FAILURE; } RefPtr charmap; nsresult rv; bool unicodeFont = false, symbolFont = false; if (aFontInfoData && (charmap = GetCMAPFromFontInfo(aFontInfoData, mUVSOffset, symbolFont))) { mSymbolFont = symbolFont; rv = NS_OK; } else { uint32_t kCMAP = TRUETYPE_TAG('c','m','a','p'); charmap = new gfxCharacterMap(); AutoTArray cmap; rv = CopyFontTable(kCMAP, cmap); if (NS_SUCCEEDED(rv)) { rv = gfxFontUtils::ReadCMAP(cmap.Elements(), cmap.Length(), *charmap, mUVSOffset, unicodeFont, symbolFont); } mSymbolFont = symbolFont; } mHasCmapTable = NS_SUCCEEDED(rv); if (mHasCmapTable) { gfxPlatformFontList *pfl = gfxPlatformFontList::PlatformFontList(); mCharacterMap = pfl->FindCharMap(charmap); } else { // if error occurred, initialize to null cmap mCharacterMap = new gfxCharacterMap(); // For fonts where we failed to read the character map, // we can take a slow path to look up glyphs character by character mCharacterMap->mBuildOnTheFly = true; } LOG_FONTLIST(("(fontlist-cmap) name: %s, size: %d hash: %8.8x%s\n", NS_ConvertUTF16toUTF8(mName).get(), charmap->SizeOfIncludingThis(moz_malloc_size_of), charmap->mHash, mCharacterMap == charmap ? " new" : "")); if (LOG_CMAPDATA_ENABLED()) { char prefix[256]; SprintfLiteral(prefix, "(cmapdata) name: %.220s", NS_ConvertUTF16toUTF8(mName).get()); charmap->Dump(prefix, eGfxLog_cmapdata); } return rv; } bool GDIFontEntry::IsSymbolFont() { // initialize cmap first HasCmapTable(); return mSymbolFont; } gfxFont * GDIFontEntry::CreateFontInstance(const gfxFontStyle* aFontStyle, bool aNeedsBold) { bool isXP = !IsVistaOrLater(); bool useClearType = isXP && !aFontStyle->systemFont && (gfxWindowsPlatform::GetPlatform()->UseClearTypeAlways() || (mIsDataUserFont && gfxWindowsPlatform::GetPlatform()->UseClearTypeForDownloadableFonts())); return new gfxGDIFont(this, aFontStyle, aNeedsBold, (useClearType ? gfxFont::kAntialiasSubpixel : gfxFont::kAntialiasDefault)); } nsresult GDIFontEntry::CopyFontTable(uint32_t aTableTag, nsTArray& aBuffer) { if (!IsTrueType()) { return NS_ERROR_FAILURE; } AutoDC dc; AutoSelectFont font(dc.GetDC(), &mLogFont); if (font.IsValid()) { uint32_t tableSize = ::GetFontData(dc.GetDC(), NativeEndian::swapToBigEndian(aTableTag), 0, nullptr, 0); if (tableSize != GDI_ERROR) { if (aBuffer.SetLength(tableSize, fallible)) { ::GetFontData(dc.GetDC(), NativeEndian::swapToBigEndian(aTableTag), 0, aBuffer.Elements(), tableSize); return NS_OK; } return NS_ERROR_OUT_OF_MEMORY; } } return NS_ERROR_FAILURE; } void GDIFontEntry::FillLogFont(LOGFONTW *aLogFont, uint16_t aWeight, gfxFloat aSize, bool aUseCleartype) { memcpy(aLogFont, &mLogFont, sizeof(LOGFONTW)); aLogFont->lfHeight = (LONG)-ROUND(aSize); if (aLogFont->lfHeight == 0) { aLogFont->lfHeight = -1; } // If a non-zero weight is passed in, use this to override the original // weight in the entry's logfont. This is used to control synthetic bolding // for installed families with no bold face, and for downloaded fonts // (but NOT for local user fonts, because it could cause a different, // glyph-incompatible face to be used) if (aWeight) { aLogFont->lfWeight = aWeight; } // for non-local() user fonts, we never want to apply italics here; // if the face is described as italic, we should use it as-is, // and if it's not, but then the element is styled italic, we'll use // a cairo transform to create fake italic (oblique) if (mIsDataUserFont) { aLogFont->lfItalic = 0; } aLogFont->lfQuality = (aUseCleartype ? CLEARTYPE_QUALITY : DEFAULT_QUALITY); } #define MISSING_GLYPH 0x1F // glyph index returned for missing characters // on WinXP with .fon fonts, but not Type1 (.pfb) bool GDIFontEntry::TestCharacterMap(uint32_t aCh) { if (!mCharacterMap) { ReadCMAP(); NS_ASSERTION(mCharacterMap, "failed to initialize a character map"); } if (mCharacterMap->mBuildOnTheFly) { if (aCh > 0xFFFF) return false; // previous code was using the group style gfxFontStyle fakeStyle; if (!IsUpright()) { fakeStyle.style = NS_FONT_STYLE_ITALIC; } fakeStyle.weight = mWeight * 100; RefPtr tempFont = FindOrMakeFont(&fakeStyle, false); if (!tempFont || !tempFont->Valid()) return false; gfxGDIFont *font = static_cast(tempFont.get()); HDC dc = GetDC((HWND)nullptr); SetGraphicsMode(dc, GM_ADVANCED); HFONT hfont = font->GetHFONT(); HFONT oldFont = (HFONT)SelectObject(dc, hfont); wchar_t str[1] = { (wchar_t)aCh }; WORD glyph[1]; bool hasGlyph = false; // Bug 573038 - in some cases GetGlyphIndicesW returns 0xFFFF for a // missing glyph or 0x1F in other cases to indicate the "invalid" // glyph. Map both cases to "not found" if (IsType1() || mForceGDI) { // Type1 fonts and uniscribe APIs don't get along. // ScriptGetCMap will return E_HANDLE DWORD ret = GetGlyphIndicesW(dc, str, 1, glyph, GGI_MARK_NONEXISTING_GLYPHS); if (ret != GDI_ERROR && glyph[0] != 0xFFFF && (IsType1() || glyph[0] != MISSING_GLYPH)) { hasGlyph = true; } } else { // ScriptGetCMap works better than GetGlyphIndicesW // for things like bitmap/vector fonts SCRIPT_CACHE sc = nullptr; HRESULT rv = ScriptGetCMap(dc, &sc, str, 1, 0, glyph); if (rv == S_OK) hasGlyph = true; } SelectObject(dc, oldFont); ReleaseDC(nullptr, dc); if (hasGlyph) { mCharacterMap->set(aCh); return true; } } else { // font had a cmap so simply check that return mCharacterMap->test(aCh); } return false; } void GDIFontEntry::InitLogFont(const nsAString& aName, gfxWindowsFontType aFontType) { #define CLIP_TURNOFF_FONTASSOCIATION 0x40 mLogFont.lfHeight = -1; // Fill in logFont structure mLogFont.lfWidth = 0; mLogFont.lfEscapement = 0; mLogFont.lfOrientation = 0; mLogFont.lfUnderline = FALSE; mLogFont.lfStrikeOut = FALSE; mLogFont.lfCharSet = DEFAULT_CHARSET; mLogFont.lfOutPrecision = FontTypeToOutPrecision(aFontType); mLogFont.lfClipPrecision = CLIP_TURNOFF_FONTASSOCIATION; mLogFont.lfQuality = DEFAULT_QUALITY; mLogFont.lfPitchAndFamily = DEFAULT_PITCH | FF_DONTCARE; // always force lfItalic if we want it. Font selection code will // do its best to give us an italic font entry, but if no face exists // it may give us a regular one based on weight. Windows should // do fake italic for us in that case. mLogFont.lfItalic = !IsUpright(); mLogFont.lfWeight = mWeight; int len = std::min(aName.Length(), LF_FACESIZE - 1); memcpy(&mLogFont.lfFaceName, aName.BeginReading(), len * sizeof(char16_t)); mLogFont.lfFaceName[len] = '\0'; } GDIFontEntry* GDIFontEntry::CreateFontEntry(const nsAString& aName, gfxWindowsFontType aFontType, uint8_t aStyle, uint16_t aWeight, int16_t aStretch, gfxUserFontData* aUserFontData, bool aFamilyHasItalicFace) { // jtdfix - need to set charset, unicode ranges, pitch/family GDIFontEntry *fe = new GDIFontEntry(aName, aFontType, aStyle, aWeight, aStretch, aUserFontData, aFamilyHasItalicFace); return fe; } void GDIFontEntry::AddSizeOfIncludingThis(MallocSizeOf aMallocSizeOf, FontListSizes* aSizes) const { aSizes->mFontListSize += aMallocSizeOf(this); AddSizeOfExcludingThis(aMallocSizeOf, aSizes); } /*************************************************************** * * GDIFontFamily * */ int CALLBACK GDIFontFamily::FamilyAddStylesProc(const ENUMLOGFONTEXW *lpelfe, const NEWTEXTMETRICEXW *nmetrics, DWORD fontType, LPARAM data) { const NEWTEXTMETRICW& metrics = nmetrics->ntmTm; LOGFONTW logFont = lpelfe->elfLogFont; GDIFontFamily *ff = reinterpret_cast(data); // Some fonts claim to support things > 900, but we don't so clamp the sizes logFont.lfWeight = clamped(logFont.lfWeight, LONG(100), LONG(900)); gfxWindowsFontType feType = GDIFontEntry::DetermineFontType(metrics, fontType); GDIFontEntry *fe = nullptr; for (uint32_t i = 0; i < ff->mAvailableFonts.Length(); ++i) { fe = static_cast(ff->mAvailableFonts[i].get()); if (feType > fe->mFontType) { // if the new type is better than the old one, remove the old entries ff->mAvailableFonts.RemoveElementAt(i); --i; } else if (feType < fe->mFontType) { // otherwise if the new type is worse, skip it return 1; } } for (uint32_t i = 0; i < ff->mAvailableFonts.Length(); ++i) { fe = static_cast(ff->mAvailableFonts[i].get()); // check if we already know about this face if (fe->mWeight == logFont.lfWeight && fe->IsItalic() == (logFont.lfItalic == 0xFF)) { // update the charset bit here since this could be different fe->mCharset.set(metrics.tmCharSet); return 1; } } // We can't set the hasItalicFace flag correctly here, // because we might not have seen the family's italic face(s) yet. // So we'll set that flag for all members after loading all the faces. uint8_t italicStyle = (logFont.lfItalic == 0xFF ? NS_FONT_STYLE_ITALIC : NS_FONT_STYLE_NORMAL); fe = GDIFontEntry::CreateFontEntry(nsDependentString(lpelfe->elfFullName), feType, italicStyle, (uint16_t) (logFont.lfWeight), 0, nullptr, false); if (!fe) return 1; ff->AddFontEntry(fe); // mark the charset bit fe->mCharset.set(metrics.tmCharSet); fe->mWindowsFamily = logFont.lfPitchAndFamily & 0xF0; fe->mWindowsPitch = logFont.lfPitchAndFamily & 0x0F; if (nmetrics->ntmFontSig.fsUsb[0] != 0x00000000 && nmetrics->ntmFontSig.fsUsb[1] != 0x00000000 && nmetrics->ntmFontSig.fsUsb[2] != 0x00000000 && nmetrics->ntmFontSig.fsUsb[3] != 0x00000000) { // set the unicode ranges uint32_t x = 0; for (uint32_t i = 0; i < 4; ++i) { DWORD range = nmetrics->ntmFontSig.fsUsb[i]; for (uint32_t k = 0; k < 32; ++k) { fe->mUnicodeRanges.set(x++, (range & (1 << k)) != 0); } } } if (LOG_FONTLIST_ENABLED()) { LOG_FONTLIST(("(fontlist) added (%s) to family (%s)" " with style: %s weight: %d stretch: %d", NS_ConvertUTF16toUTF8(fe->Name()).get(), NS_ConvertUTF16toUTF8(ff->Name()).get(), (logFont.lfItalic == 0xff) ? "italic" : "normal", logFont.lfWeight, fe->Stretch())); } return 1; } void GDIFontFamily::FindStyleVariations(FontInfoData *aFontInfoData) { if (mHasStyles) return; mHasStyles = true; HDC hdc = GetDC(nullptr); SetGraphicsMode(hdc, GM_ADVANCED); LOGFONTW logFont; memset(&logFont, 0, sizeof(LOGFONTW)); logFont.lfCharSet = DEFAULT_CHARSET; logFont.lfPitchAndFamily = 0; uint32_t l = std::min(mName.Length(), LF_FACESIZE - 1); memcpy(logFont.lfFaceName, mName.get(), l * sizeof(char16_t)); EnumFontFamiliesExW(hdc, &logFont, (FONTENUMPROCW)GDIFontFamily::FamilyAddStylesProc, (LPARAM)this, 0); if (LOG_FONTLIST_ENABLED() && mAvailableFonts.Length() == 0) { LOG_FONTLIST(("(fontlist) no styles available in family \"%s\"", NS_ConvertUTF16toUTF8(mName).get())); } ReleaseDC(nullptr, hdc); if (mIsBadUnderlineFamily) { SetBadUnderlineFonts(); } // check for existence of italic face(s); if present, set the // FamilyHasItalic flag on all faces so that we'll know *not* // to use GDI's fake-italic effect with them size_t count = mAvailableFonts.Length(); for (size_t i = 0; i < count; ++i) { if (mAvailableFonts[i]->IsItalic()) { for (uint32_t j = 0; j < count; ++j) { static_cast(mAvailableFonts[j].get())-> mFamilyHasItalicFace = true; } break; } } } /*************************************************************** * * gfxGDIFontList * */ gfxGDIFontList::gfxGDIFontList() : mFontSubstitutes(32) { #ifdef MOZ_BUNDLED_FONTS ActivateBundledFonts(); #endif } static void RemoveCharsetFromFontSubstitute(nsAString &aName) { int32_t comma = aName.FindChar(char16_t(',')); if (comma >= 0) aName.Truncate(comma); } #define MAX_VALUE_NAME 512 #define MAX_VALUE_DATA 512 nsresult gfxGDIFontList::GetFontSubstitutes() { HKEY hKey; DWORD i, rv, lenAlias, lenActual, valueType; WCHAR aliasName[MAX_VALUE_NAME]; WCHAR actualName[MAX_VALUE_DATA]; if (RegOpenKeyExW(HKEY_LOCAL_MACHINE, L"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\FontSubstitutes", 0, KEY_READ, &hKey) != ERROR_SUCCESS) { return NS_ERROR_FAILURE; } for (i = 0, rv = ERROR_SUCCESS; rv != ERROR_NO_MORE_ITEMS; i++) { aliasName[0] = 0; lenAlias = ArrayLength(aliasName); actualName[0] = 0; lenActual = sizeof(actualName); rv = RegEnumValueW(hKey, i, aliasName, &lenAlias, nullptr, &valueType, (LPBYTE)actualName, &lenActual); if (rv != ERROR_SUCCESS || valueType != REG_SZ || lenAlias == 0) { continue; } if (aliasName[0] == WCHAR('@')) { continue; } nsAutoString substituteName((char16_t*) aliasName); nsAutoString actualFontName((char16_t*) actualName); RemoveCharsetFromFontSubstitute(substituteName); BuildKeyNameFromFontName(substituteName); RemoveCharsetFromFontSubstitute(actualFontName); BuildKeyNameFromFontName(actualFontName); gfxFontFamily *ff; if (!actualFontName.IsEmpty() && (ff = mFontFamilies.GetWeak(actualFontName))) { mFontSubstitutes.Put(substituteName, ff); } else { mNonExistingFonts.AppendElement(substituteName); } } // "Courier" on a default Windows install is an ugly bitmap font. // If there is no substitution for Courier in the registry // substitute "Courier" with "Courier New". nsAutoString substituteName; substituteName.AssignLiteral("Courier"); BuildKeyNameFromFontName(substituteName); if (!mFontSubstitutes.GetWeak(substituteName)) { gfxFontFamily *ff; nsAutoString actualFontName; actualFontName.AssignLiteral("Courier New"); BuildKeyNameFromFontName(actualFontName); ff = mFontFamilies.GetWeak(actualFontName); if (ff) { mFontSubstitutes.Put(substituteName, ff); } } return NS_OK; } nsresult gfxGDIFontList::InitFontListForPlatform() { Telemetry::AutoTimer timer; mFontSubstitutes.Clear(); mNonExistingFonts.Clear(); // iterate over available families LOGFONTW logfont; memset(&logfont, 0, sizeof(logfont)); logfont.lfCharSet = DEFAULT_CHARSET; AutoDC hdc; int result = EnumFontFamiliesExW(hdc.GetDC(), &logfont, (FONTENUMPROCW)&EnumFontFamExProc, 0, 0); GetFontSubstitutes(); GetPrefsAndStartLoader(); return NS_OK; } int CALLBACK gfxGDIFontList::EnumFontFamExProc(ENUMLOGFONTEXW *lpelfe, NEWTEXTMETRICEXW *lpntme, DWORD fontType, LPARAM lParam) { const LOGFONTW& lf = lpelfe->elfLogFont; if (lf.lfFaceName[0] == '@') { return 1; } nsAutoString name(lf.lfFaceName); BuildKeyNameFromFontName(name); gfxGDIFontList *fontList = PlatformFontList(); if (!fontList->mFontFamilies.GetWeak(name)) { nsDependentString faceName(lf.lfFaceName); RefPtr family = new GDIFontFamily(faceName); fontList->mFontFamilies.Put(name, family); // if locale is such that CJK font names are the default coming from // GDI, then if a family name is non-ASCII immediately read in other // family names. This assures that MS Gothic, MS Mincho are all found // before lookups begin. if (!IsASCII(faceName)) { family->ReadOtherFamilyNames(gfxPlatformFontList::PlatformFontList()); } if (fontList->mBadUnderlineFamilyNames.Contains(name)) family->SetBadUnderlineFamily(); } return 1; } gfxFontEntry* gfxGDIFontList::LookupLocalFont(const nsAString& aFontName, uint16_t aWeight, int16_t aStretch, uint8_t aStyle) { gfxFontEntry *lookup; lookup = LookupInFaceNameLists(aFontName); if (!lookup) { return nullptr; } bool isCFF = false; // jtdfix -- need to determine this // use the face name from the lookup font entry, which will be the localized // face name which GDI mapping tables use (e.g. with the system locale set to // Dutch, a fullname of 'Arial Bold' will find a font entry with the face name // 'Arial Vet' which can be used as a key in GDI font lookups). GDIFontEntry *fe = GDIFontEntry::CreateFontEntry(lookup->Name(), gfxWindowsFontType(isCFF ? GFX_FONT_TYPE_PS_OPENTYPE : GFX_FONT_TYPE_TRUETYPE) /*type*/, lookup->mStyle, lookup->mWeight, aStretch, nullptr, static_cast(lookup)->mFamilyHasItalicFace); if (!fe) return nullptr; fe->mIsLocalUserFont = true; // make the new font entry match the userfont entry style characteristics fe->mWeight = (aWeight == 0 ? 400 : aWeight); fe->mStyle = aStyle; return fe; } // If aFontData contains only a MS/Symbol cmap subtable, not MS/Unicode, // we modify the subtable header to mark it as Unicode instead, because // otherwise GDI will refuse to load the font. // NOTE that this function does not bounds-check every access to the font data. // This is OK because we only use it on data that has already been validated // by OTS, and therefore we will not hit out-of-bounds accesses here. static bool FixupSymbolEncodedFont(uint8_t* aFontData, uint32_t aLength) { struct CmapHeader { AutoSwap_PRUint16 version; AutoSwap_PRUint16 numTables; }; struct CmapEncodingRecord { AutoSwap_PRUint16 platformID; AutoSwap_PRUint16 encodingID; AutoSwap_PRUint32 offset; }; const uint32_t kCMAP = TRUETYPE_TAG('c','m','a','p'); const TableDirEntry* dir = gfxFontUtils::FindTableDirEntry(aFontData, kCMAP); if (dir && uint32_t(dir->length) >= sizeof(CmapHeader)) { CmapHeader *cmap = reinterpret_cast(aFontData + uint32_t(dir->offset)); CmapEncodingRecord *encRec = reinterpret_cast(cmap + 1); int32_t symbolSubtable = -1; for (uint32_t i = 0; i < (uint16_t)cmap->numTables; ++i) { if (uint16_t(encRec[i].platformID) != gfxFontUtils::PLATFORM_ID_MICROSOFT) { continue; // only interested in MS platform } if (uint16_t(encRec[i].encodingID) == gfxFontUtils::ENCODING_ID_MICROSOFT_UNICODEBMP) { // We've got a Microsoft/Unicode table, so don't interfere. symbolSubtable = -1; break; } if (uint16_t(encRec[i].encodingID) == gfxFontUtils::ENCODING_ID_MICROSOFT_SYMBOL) { // Found a symbol subtable; remember it for possible fixup, // but if we subsequently find a Microsoft/Unicode subtable, // we'll cancel this. symbolSubtable = i; } } if (symbolSubtable != -1) { // We found a windows/symbol cmap table, and no windows/unicode one; // change the encoding ID so that AddFontMemResourceEx will accept it encRec[symbolSubtable].encodingID = gfxFontUtils::ENCODING_ID_MICROSOFT_UNICODEBMP; return true; } } return false; } gfxFontEntry* gfxGDIFontList::MakePlatformFont(const nsAString& aFontName, uint16_t aWeight, int16_t aStretch, uint8_t aStyle, const uint8_t* aFontData, uint32_t aLength) { // MakePlatformFont is responsible for deleting the font data with free // so we set up a stack object to ensure it is freed even if we take an // early exit struct FontDataDeleter { explicit FontDataDeleter(const uint8_t* aFontData) : mFontData(aFontData) { } ~FontDataDeleter() { free((void*)mFontData); } const uint8_t *mFontData; }; FontDataDeleter autoDelete(aFontData); bool isCFF = gfxFontUtils::IsCffFont(aFontData); nsresult rv; HANDLE fontRef = nullptr; nsAutoString uniqueName; rv = gfxFontUtils::MakeUniqueUserFontName(uniqueName); if (NS_FAILED(rv)) return nullptr; FallibleTArray newFontData; rv = gfxFontUtils::RenameFont(uniqueName, aFontData, aLength, &newFontData); if (NS_FAILED(rv)) return nullptr; DWORD numFonts = 0; uint8_t *fontData = reinterpret_cast (newFontData.Elements()); uint32_t fontLength = newFontData.Length(); NS_ASSERTION(fontData, "null font data after renaming"); // http://msdn.microsoft.com/en-us/library/ms533942(VS.85).aspx // "A font that is added by AddFontMemResourceEx is always private // to the process that made the call and is not enumerable." fontRef = AddFontMemResourceEx(fontData, fontLength, 0 /* reserved */, &numFonts); if (!fontRef) { if (FixupSymbolEncodedFont(fontData, fontLength)) { fontRef = AddFontMemResourceEx(fontData, fontLength, 0, &numFonts); } } if (!fontRef) { return nullptr; } // only load fonts with a single face contained in the data // AddFontMemResourceEx generates an additional face name for // vertical text if the font supports vertical writing but since // the font is referenced via the name this can be ignored if (fontRef && numFonts > 2) { RemoveFontMemResourceEx(fontRef); return nullptr; } // make a new font entry using the unique name WinUserFontData *winUserFontData = new WinUserFontData(fontRef); uint16_t w = (aWeight == 0 ? 400 : aWeight); GDIFontEntry *fe = GDIFontEntry::CreateFontEntry(uniqueName, gfxWindowsFontType(isCFF ? GFX_FONT_TYPE_PS_OPENTYPE : GFX_FONT_TYPE_TRUETYPE) /*type*/, aStyle, w, aStretch, winUserFontData, false); if (!fe) return fe; fe->mIsDataUserFont = true; // Uniscribe doesn't place CFF fonts loaded privately // via AddFontMemResourceEx on XP/Vista if (isCFF && !IsWin7OrLater()) { fe->mForceGDI = true; } return fe; } bool gfxGDIFontList::FindAndAddFamilies(const nsAString& aFamily, nsTArray* aOutput, gfxFontStyle* aStyle, gfxFloat aDevToCssSize) { nsAutoString keyName(aFamily); BuildKeyNameFromFontName(keyName); gfxFontFamily *ff = mFontSubstitutes.GetWeak(keyName); if (ff) { aOutput->AppendElement(ff); return true; } if (mNonExistingFonts.Contains(keyName)) { return false; } return gfxPlatformFontList::FindAndAddFamilies(aFamily, aOutput, aStyle, aDevToCssSize); } gfxFontFamily* gfxGDIFontList::GetDefaultFontForPlatform(const gfxFontStyle* aStyle) { gfxFontFamily *ff = nullptr; // this really shouldn't fail to find a font.... NONCLIENTMETRICSW ncm; ncm.cbSize = sizeof(ncm); BOOL status = ::SystemParametersInfoW(SPI_GETNONCLIENTMETRICS, sizeof(ncm), &ncm, 0); if (status) { ff = FindFamily(nsDependentString(ncm.lfMessageFont.lfFaceName)); if (ff) { return ff; } } // ...but just in case, try another (long-deprecated) approach as well HGDIOBJ hGDI = ::GetStockObject(DEFAULT_GUI_FONT); LOGFONTW logFont; if (hGDI && ::GetObjectW(hGDI, sizeof(logFont), &logFont)) { ff = FindFamily(nsDependentString(logFont.lfFaceName)); } return ff; } void gfxGDIFontList::AddSizeOfExcludingThis(MallocSizeOf aMallocSizeOf, FontListSizes* aSizes) const { gfxPlatformFontList::AddSizeOfExcludingThis(aMallocSizeOf, aSizes); aSizes->mFontListSize += SizeOfFontFamilyTableExcludingThis(mFontSubstitutes, aMallocSizeOf); aSizes->mFontListSize += mNonExistingFonts.ShallowSizeOfExcludingThis(aMallocSizeOf); for (uint32_t i = 0; i < mNonExistingFonts.Length(); ++i) { aSizes->mFontListSize += mNonExistingFonts[i].SizeOfExcludingThisIfUnshared(aMallocSizeOf); } } void gfxGDIFontList::AddSizeOfIncludingThis(MallocSizeOf aMallocSizeOf, FontListSizes* aSizes) const { aSizes->mFontListSize += aMallocSizeOf(this); AddSizeOfExcludingThis(aMallocSizeOf, aSizes); } // used to load system-wide font info on off-main thread class GDIFontInfo : public FontInfoData { public: GDIFontInfo(bool aLoadOtherNames, bool aLoadFaceNames, bool aLoadCmaps) : FontInfoData(aLoadOtherNames, aLoadFaceNames, aLoadCmaps) {} virtual ~GDIFontInfo() {} virtual void Load() { mHdc = GetDC(nullptr); SetGraphicsMode(mHdc, GM_ADVANCED); FontInfoData::Load(); ReleaseDC(nullptr, mHdc); } // loads font data for all members of a given family virtual void LoadFontFamilyData(const nsAString& aFamilyName); // callback for GDI EnumFontFamiliesExW call static int CALLBACK EnumerateFontsForFamily(const ENUMLOGFONTEXW *lpelfe, const NEWTEXTMETRICEXW *nmetrics, DWORD fontType, LPARAM data); HDC mHdc; }; struct EnumerateFontsForFamilyData { EnumerateFontsForFamilyData(const nsAString& aFamilyName, GDIFontInfo& aFontInfo) : mFamilyName(aFamilyName), mFontInfo(aFontInfo) {} nsString mFamilyName; nsTArray mOtherFamilyNames; GDIFontInfo& mFontInfo; nsString mPreviousFontName; }; int CALLBACK GDIFontInfo::EnumerateFontsForFamily( const ENUMLOGFONTEXW *lpelfe, const NEWTEXTMETRICEXW *nmetrics, DWORD fontType, LPARAM data) { EnumerateFontsForFamilyData *famData = reinterpret_cast(data); HDC hdc = famData->mFontInfo.mHdc; LOGFONTW logFont = lpelfe->elfLogFont; const NEWTEXTMETRICW& metrics = nmetrics->ntmTm; AutoSelectFont font(hdc, &logFont); if (!font.IsValid()) { return 1; } FontFaceData fontData; nsDependentString fontName(lpelfe->elfFullName); // callback called for each style-charset so return if style already seen if (fontName.Equals(famData->mPreviousFontName)) { return 1; } famData->mPreviousFontName = fontName; famData->mFontInfo.mLoadStats.fonts++; // read name table info bool nameDataLoaded = false; if (famData->mFontInfo.mLoadFaceNames || famData->mFontInfo.mLoadOtherNames) { uint32_t kNAME = NativeEndian::swapToBigEndian(TRUETYPE_TAG('n','a','m','e')); uint32_t nameSize; AutoTArray nameData; nameSize = ::GetFontData(hdc, kNAME, 0, nullptr, 0); if (nameSize != GDI_ERROR && nameSize > 0 && nameData.SetLength(nameSize, fallible)) { ::GetFontData(hdc, kNAME, 0, nameData.Elements(), nameSize); // face names if (famData->mFontInfo.mLoadFaceNames) { gfxFontUtils::ReadCanonicalName((const char*)(nameData.Elements()), nameSize, gfxFontUtils::NAME_ID_FULL, fontData.mFullName); gfxFontUtils::ReadCanonicalName((const char*)(nameData.Elements()), nameSize, gfxFontUtils::NAME_ID_POSTSCRIPT, fontData.mPostscriptName); nameDataLoaded = true; famData->mFontInfo.mLoadStats.facenames++; } // other family names if (famData->mFontInfo.mLoadOtherNames) { gfxFontFamily::ReadOtherFamilyNamesForFace(famData->mFamilyName, (const char*)(nameData.Elements()), nameSize, famData->mOtherFamilyNames, false); } } } // read cmap bool cmapLoaded = false; gfxWindowsFontType feType = GDIFontEntry::DetermineFontType(metrics, fontType); if (famData->mFontInfo.mLoadCmaps && (feType == GFX_FONT_TYPE_PS_OPENTYPE || feType == GFX_FONT_TYPE_TT_OPENTYPE || feType == GFX_FONT_TYPE_TRUETYPE)) { uint32_t kCMAP = NativeEndian::swapToBigEndian(TRUETYPE_TAG('c','m','a','p')); uint32_t cmapSize; AutoTArray cmapData; cmapSize = ::GetFontData(hdc, kCMAP, 0, nullptr, 0); if (cmapSize != GDI_ERROR && cmapSize > 0 && cmapData.SetLength(cmapSize, fallible)) { ::GetFontData(hdc, kCMAP, 0, cmapData.Elements(), cmapSize); bool cmapLoaded = false; bool unicodeFont = false, symbolFont = false; RefPtr charmap = new gfxCharacterMap(); uint32_t offset; if (NS_SUCCEEDED(gfxFontUtils::ReadCMAP(cmapData.Elements(), cmapSize, *charmap, offset, unicodeFont, symbolFont))) { fontData.mCharacterMap = charmap; fontData.mUVSOffset = offset; fontData.mSymbolFont = symbolFont; cmapLoaded = true; famData->mFontInfo.mLoadStats.cmaps++; } } } if (cmapLoaded || nameDataLoaded) { famData->mFontInfo.mFontFaceData.Put(fontName, fontData); } return famData->mFontInfo.mCanceled ? 0 : 1; } void GDIFontInfo::LoadFontFamilyData(const nsAString& aFamilyName) { // iterate over the family LOGFONTW logFont; memset(&logFont, 0, sizeof(LOGFONTW)); logFont.lfCharSet = DEFAULT_CHARSET; logFont.lfPitchAndFamily = 0; uint32_t l = std::min(aFamilyName.Length(), LF_FACESIZE - 1); memcpy(logFont.lfFaceName, aFamilyName.BeginReading(), l * sizeof(char16_t)); EnumerateFontsForFamilyData data(aFamilyName, *this); EnumFontFamiliesExW(mHdc, &logFont, (FONTENUMPROCW)GDIFontInfo::EnumerateFontsForFamily, (LPARAM)(&data), 0); // if found other names, insert them if (data.mOtherFamilyNames.Length() != 0) { mOtherFamilyNames.Put(aFamilyName, data.mOtherFamilyNames); mLoadStats.othernames += data.mOtherFamilyNames.Length(); } } already_AddRefed gfxGDIFontList::CreateFontInfoData() { bool loadCmaps = !UsesSystemFallback() || gfxPlatform::GetPlatform()->UseCmapsDuringSystemFallback(); RefPtr fi = new GDIFontInfo(true, NeedFullnamePostscriptNames(), loadCmaps); return fi.forget(); } #ifdef MOZ_BUNDLED_FONTS void gfxGDIFontList::ActivateBundledFonts() { nsCOMPtr localDir; nsresult rv = NS_GetSpecialDirectory(NS_GRE_DIR, getter_AddRefs(localDir)); if (NS_FAILED(rv)) { return; } if (NS_FAILED(localDir->Append(NS_LITERAL_STRING("fonts")))) { return; } bool isDir; if (NS_FAILED(localDir->IsDirectory(&isDir)) || !isDir) { return; } nsCOMPtr e; rv = localDir->GetDirectoryEntries(getter_AddRefs(e)); if (NS_FAILED(rv)) { return; } bool hasMore; while (NS_SUCCEEDED(e->HasMoreElements(&hasMore)) && hasMore) { nsCOMPtr entry; if (NS_FAILED(e->GetNext(getter_AddRefs(entry)))) { break; } nsCOMPtr file = do_QueryInterface(entry); if (!file) { continue; } nsAutoString path; if (NS_FAILED(file->GetPath(path))) { continue; } AddFontResourceExW(path.get(), FR_PRIVATE, nullptr); } } #endif