DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Header

Mercurial (2cd3752963fc)

VCS Links

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215
/* -*- 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 <algorithm>

#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 <usp10.h>

using namespace mozilla;
using namespace mozilla::gfx;

#define ROUND(x) floor((x) + 0.5)

#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<BOOL> 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),
      mFontType(aFontType),
      mForceGDI(false),
      mFamilyHasItalicFace(aFamilyHasItalicFace),
      mUnicodeRanges()
{
    mUserFontData.reset(aUserFontData);
    mStyle = aStyle;
    mWeight = aWeight;
    mStretch = aStretch;
    if (IsType1())
        mForceGDI = true;
    mIsDataUserFont = aUserFontData != nullptr;

    InitLogFont(aFaceName, aFontType);
}

gfxFontEntry*
GDIFontEntry::Clone() const
{
    MOZ_ASSERT(!IsUserFont(), "we can only clone installed fonts!");
    return new GDIFontEntry(Name(), mFontType, mStyle, mWeight, mStretch,
                            nullptr, mFamilyHasItalicFace);
}

nsresult
GDIFontEntry::ReadCMAP(FontInfoData *aFontInfoData)
{
    AUTO_PROFILER_LABEL("GDIFontEntry::ReadCMAP", 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<gfxCharacterMap> charmap;
    nsresult rv;

    if (aFontInfoData && (charmap = GetCMAPFromFontInfo(aFontInfoData,
                                                        mUVSOffset))) {
        rv = NS_OK;
    } else {
        uint32_t kCMAP = TRUETYPE_TAG('c','m','a','p');
        charmap = new gfxCharacterMap();
        AutoTArray<uint8_t, 16384> cmap;
        rv = CopyFontTable(kCMAP, cmap);

        if (NS_SUCCEEDED(rv)) {
            rv = gfxFontUtils::ReadCMAP(cmap.Elements(), cmap.Length(),
                                        *charmap, mUVSOffset);
        }
    }

    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;
}

gfxFont *
GDIFontEntry::CreateFontInstance(const gfxFontStyle* aFontStyle, bool aNeedsBold)
{
    return new gfxGDIFont(this, aFontStyle, aNeedsBold);
}

nsresult
GDIFontEntry::CopyFontTable(uint32_t aTableTag, nsTArray<uint8_t>& 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;
}

already_AddRefed<UnscaledFontGDI>
GDIFontEntry::LookupUnscaledFont(HFONT aFont)
{
    RefPtr<UnscaledFontGDI> unscaledFont =
        static_cast<UnscaledFontGDI*>(mUnscaledFont.get());
    if (!unscaledFont) {
        LOGFONT lf;
        GetObject(aFont, sizeof(LOGFONT), &lf);
        unscaledFont = new UnscaledFontGDI(lf);
        mUnscaledFont = unscaledFont;
    }

    return unscaledFont.forget();
}

void
GDIFontEntry::FillLogFont(LOGFONTW *aLogFont,
                          uint16_t aWeight, gfxFloat aSize)
{
    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;
    }
}

#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<gfxFont> tempFont = FindOrMakeFont(&fakeStyle, false);
        if (!tempFont || !tempFont->Valid())
            return false;
        gfxGDIFont *font = static_cast<gfxGDIFont*>(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<int>(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
 *
 */

static bool
ShouldIgnoreItalicStyle(const nsAString& aName)
{
    // Ignore italic style's "Meiryo" because "Meiryo (Bold) Italic" has
    // non-italic style glyphs as Japanese characters.  However, using it
    // causes serious problem if web pages wants some elements to be
    // different style from others only with font-style.  For example,
    // <em> and <i> should be rendered as italic in the default style.
    return aName.EqualsLiteral("Meiryo") ||
           aName.Equals(NS_LITERAL_STRING(u"\x30E1\x30A4\x30EA\x30AA"));
}

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<GDIFontFamily*>(data);

    if (logFont.lfItalic && ShouldIgnoreItalicStyle(ff->mName)) {
        return 1;
    }

    // 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<GDIFontEntry*>(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<GDIFontEntry*>(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
            // XXX Can we still do this now that we store mCharset
            // on the font family rather than the font entry?
            ff->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);

    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<uint32_t>(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

    // If we ignored italic face(s), we should mark this has italic face.
    bool hasItalicFace = ShouldIgnoreItalicStyle(mName);

    if (!hasItalicFace) {
        for (RefPtr<gfxFontEntry>& fontEntry : mAvailableFonts) {
            if (fontEntry->IsItalic()) {
                hasItalicFace = true;
                break;
            }
        }
    }

    if (hasItalicFace) {
        for (RefPtr<gfxFontEntry>& fontEntry : mAvailableFonts) {
            static_cast<GDIFontEntry*>(fontEntry.get())->
                mFamilyHasItalicFace = true;
        }
    }
}

/***************************************************************
 *
 * 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<Telemetry::GDI_INITFONTLIST_TOTAL> 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 NEWTEXTMETRICW& metrics = lpntme->ntmTm;
    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<GDIFontFamily> 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();

        family->mWindowsFamily = lf.lfPitchAndFamily & 0xF0;
        family->mWindowsPitch = lf.lfPitchAndFamily & 0x0F;

        // mark the charset bit
        family->mCharset.set(metrics.tmCharSet);
    }

    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<GDIFontEntry*>(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<CmapHeader*>(aFontData + uint32_t(dir->offset));
        CmapEncodingRecord *encRec =
            reinterpret_cast<CmapEncodingRecord*>(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<uint8_t> newFontData;

    rv = gfxFontUtils::RenameFont(uniqueName, aFontData, aLength, &newFontData);

    if (NS_FAILED(rv))
        return nullptr;
        
    DWORD numFonts = 0;

    uint8_t *fontData = reinterpret_cast<uint8_t*> (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) {
      fe->mIsDataUserFont = true;
    }

    return fe;
}

bool
gfxGDIFontList::FindAndAddFamilies(const nsAString& aFamily,
                                   nsTArray<gfxFontFamily*>* aOutput,
                                   FindFamiliesFlags aFlags,
                                   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,
                                                   aFlags,
                                                   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<nsString> mOtherFamilyNames;
    GDIFontInfo& mFontInfo;
    nsString mPreviousFontName;
};

int CALLBACK GDIFontInfo::EnumerateFontsForFamily(
                 const ENUMLOGFONTEXW *lpelfe,
                 const NEWTEXTMETRICEXW *nmetrics,
                 DWORD fontType, LPARAM data)
{
    EnumerateFontsForFamilyData *famData =
        reinterpret_cast<EnumerateFontsForFamilyData*>(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<uint8_t, 1024> 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<uint8_t, 1024> 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;
            RefPtr<gfxCharacterMap> charmap = new gfxCharacterMap();
            uint32_t offset;

            if (NS_SUCCEEDED(gfxFontUtils::ReadCMAP(cmapData.Elements(),
                                                    cmapSize, *charmap,
                                                    offset))) {
                fontData.mCharacterMap = charmap;
                fontData.mUVSOffset = offset;
                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<uint32_t>(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<FontInfoData>
gfxGDIFontList::CreateFontInfoData()
{
    bool loadCmaps = !UsesSystemFallback() ||
        gfxPlatform::GetPlatform()->UseCmapsDuringSystemFallback();

    RefPtr<GDIFontInfo> fi =
        new GDIFontInfo(true, NeedFullnamePostscriptNames(), loadCmaps);

    return fi.forget();
}

gfxFontFamily*
gfxGDIFontList::CreateFontFamily(const nsAString& aName) const
{
    return new GDIFontFamily(aName);
}

#ifdef MOZ_BUNDLED_FONTS

void
gfxGDIFontList::ActivateBundledFonts()
{
    nsCOMPtr<nsIFile> 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<nsISimpleEnumerator> e;
    rv = localDir->GetDirectoryEntries(getter_AddRefs(e));
    if (NS_FAILED(rv)) {
        return;
    }

    bool hasMore;
    while (NS_SUCCEEDED(e->HasMoreElements(&hasMore)) && hasMore) {
        nsCOMPtr<nsISupports> entry;
        if (NS_FAILED(e->GetNext(getter_AddRefs(entry)))) {
            break;
        }
        nsCOMPtr<nsIFile> file = do_QueryInterface(entry);
        if (!file) {
            continue;
        }
        nsAutoString path;
        if (NS_FAILED(file->GetPath(path))) {
            continue;
        }
        AddFontResourceExW(path.get(), FR_PRIVATE, nullptr);
    }
}

#endif