Move core/fxge/ge to core/fxge.

This brings the cpp and h files together and removes the
redundant ge/ path.

Change-Id: I36594b8ae719d362768ba4c2e4ce173e287363eb
Reviewed-on: https://pdfium-review.googlesource.com/7452
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>

1 files changed, 817 insertions, 0 deletions

diff --git a/core/fxge/cfx_fontmapper.cpp b/core/fxge/cfx_fontmapper.cpp
new file mode 100644
index 0000000000..5b4ceaac59
--- /dev/null
+++ b/core/fxge/cfx_fontmapper.cpp
@@ -0,0 +1,817 @@
+// Copyright 2016 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "core/fxge/cfx_fontmapper.h"
+
+#include <algorithm>
+#include <memory>
+#include <sstream>
+#include <utility>
+#include <vector>
+
+#include "core/fxcrt/fx_codepage.h"
+#include "core/fxge/cfx_substfont.h"
+#include "core/fxge/fx_font.h"
+#include "core/fxge/ifx_systemfontinfo.h"
+
+#include "third_party/base/stl_util.h"
+
+#define FX_FONT_STYLE_None 0x00
+#define FX_FONT_STYLE_Bold 0x01
+#define FX_FONT_STYLE_Italic 0x02
+#define FX_FONT_STYLE_BoldBold 0x04
+
+namespace {
+
+const int kNumStandardFonts = 14;
+
+const char* const g_Base14FontNames[kNumStandardFonts] = {
+    "Courier",
+    "Courier-Bold",
+    "Courier-BoldOblique",
+    "Courier-Oblique",
+    "Helvetica",
+    "Helvetica-Bold",
+    "Helvetica-BoldOblique",
+    "Helvetica-Oblique",
+    "Times-Roman",
+    "Times-Bold",
+    "Times-BoldItalic",
+    "Times-Italic",
+    "Symbol",
+    "ZapfDingbats",
+};
+
+const struct AltFontName {
+  const char* m_pName;
+  int m_Index;
+} g_AltFontNames[] = {
+    {"Arial", 4},
+    {"Arial,Bold", 5},
+    {"Arial,BoldItalic", 6},
+    {"Arial,Italic", 7},
+    {"Arial-Bold", 5},
+    {"Arial-BoldItalic", 6},
+    {"Arial-BoldItalicMT", 6},
+    {"Arial-BoldMT", 5},
+    {"Arial-Italic", 7},
+    {"Arial-ItalicMT", 7},
+    {"ArialBold", 5},
+    {"ArialBoldItalic", 6},
+    {"ArialItalic", 7},
+    {"ArialMT", 4},
+    {"ArialMT,Bold", 5},
+    {"ArialMT,BoldItalic", 6},
+    {"ArialMT,Italic", 7},
+    {"ArialRoundedMTBold", 5},
+    {"Courier", 0},
+    {"Courier,Bold", 1},
+    {"Courier,BoldItalic", 2},
+    {"Courier,Italic", 3},
+    {"Courier-Bold", 1},
+    {"Courier-BoldOblique", 2},
+    {"Courier-Oblique", 3},
+    {"CourierBold", 1},
+    {"CourierBoldItalic", 2},
+    {"CourierItalic", 3},
+    {"CourierNew", 0},
+    {"CourierNew,Bold", 1},
+    {"CourierNew,BoldItalic", 2},
+    {"CourierNew,Italic", 3},
+    {"CourierNew-Bold", 1},
+    {"CourierNew-BoldItalic", 2},
+    {"CourierNew-Italic", 3},
+    {"CourierNewBold", 1},
+    {"CourierNewBoldItalic", 2},
+    {"CourierNewItalic", 3},
+    {"CourierNewPS-BoldItalicMT", 2},
+    {"CourierNewPS-BoldMT", 1},
+    {"CourierNewPS-ItalicMT", 3},
+    {"CourierNewPSMT", 0},
+    {"CourierStd", 0},
+    {"CourierStd-Bold", 1},
+    {"CourierStd-BoldOblique", 2},
+    {"CourierStd-Oblique", 3},
+    {"Helvetica", 4},
+    {"Helvetica,Bold", 5},
+    {"Helvetica,BoldItalic", 6},
+    {"Helvetica,Italic", 7},
+    {"Helvetica-Bold", 5},
+    {"Helvetica-BoldItalic", 6},
+    {"Helvetica-BoldOblique", 6},
+    {"Helvetica-Italic", 7},
+    {"Helvetica-Oblique", 7},
+    {"HelveticaBold", 5},
+    {"HelveticaBoldItalic", 6},
+    {"HelveticaItalic", 7},
+    {"Symbol", 12},
+    {"SymbolMT", 12},
+    {"Times-Bold", 9},
+    {"Times-BoldItalic", 10},
+    {"Times-Italic", 11},
+    {"Times-Roman", 8},
+    {"TimesBold", 9},
+    {"TimesBoldItalic", 10},
+    {"TimesItalic", 11},
+    {"TimesNewRoman", 8},
+    {"TimesNewRoman,Bold", 9},
+    {"TimesNewRoman,BoldItalic", 10},
+    {"TimesNewRoman,Italic", 11},
+    {"TimesNewRoman-Bold", 9},
+    {"TimesNewRoman-BoldItalic", 10},
+    {"TimesNewRoman-Italic", 11},
+    {"TimesNewRomanBold", 9},
+    {"TimesNewRomanBoldItalic", 10},
+    {"TimesNewRomanItalic", 11},
+    {"TimesNewRomanPS", 8},
+    {"TimesNewRomanPS-Bold", 9},
+    {"TimesNewRomanPS-BoldItalic", 10},
+    {"TimesNewRomanPS-BoldItalicMT", 10},
+    {"TimesNewRomanPS-BoldMT", 9},
+    {"TimesNewRomanPS-Italic", 11},
+    {"TimesNewRomanPS-ItalicMT", 11},
+    {"TimesNewRomanPSMT", 8},
+    {"TimesNewRomanPSMT,Bold", 9},
+    {"TimesNewRomanPSMT,BoldItalic", 10},
+    {"TimesNewRomanPSMT,Italic", 11},
+    {"ZapfDingbats", 13},
+};
+
+const struct AltFontFamily {
+  const char* m_pFontName;
+  const char* m_pFontFamily;
+} g_AltFontFamilies[] = {
+    {"AGaramondPro", "Adobe Garamond Pro"},
+    {"BankGothicBT-Medium", "BankGothic Md BT"},
+    {"ForteMT", "Forte"},
+};
+
+const struct FX_FontStyle {
+  const char* style;
+  int32_t len;
+} g_FontStyles[] = {
+    {"Bold", 4}, {"Italic", 6}, {"BoldItalic", 10}, {"Reg", 3}, {"Regular", 7},
+};
+
+const struct CODEPAGE_MAP {
+  uint16_t codepage;
+  uint8_t charset;
+} g_Codepage2CharsetTable[] = {
+    {0, 1},      {42, 2},     {437, 254},  {850, 255},  {874, 222},
+    {932, 128},  {936, 134},  {949, 129},  {950, 136},  {1250, 238},
+    {1251, 204}, {1252, 0},   {1253, 161}, {1254, 162}, {1255, 177},
+    {1256, 178}, {1257, 186}, {1258, 163}, {1361, 130}, {10000, 77},
+    {10001, 78}, {10002, 81}, {10003, 79}, {10004, 84}, {10005, 83},
+    {10006, 85}, {10007, 89}, {10008, 80}, {10021, 87}, {10029, 88},
+    {10081, 86},
+};
+
+int CompareFontFamilyString(const void* key, const void* element) {
+  CFX_ByteString str_key((const char*)key);
+  const AltFontFamily* family = reinterpret_cast<const AltFontFamily*>(element);
+  if (str_key.Find(family->m_pFontName) != -1)
+    return 0;
+  return FXSYS_stricmp(reinterpret_cast<const char*>(key), family->m_pFontName);
+}
+
+int CompareString(const void* key, const void* element) {
+  return FXSYS_stricmp(reinterpret_cast<const char*>(key),
+                       reinterpret_cast<const AltFontName*>(element)->m_pName);
+}
+
+CFX_ByteString TT_NormalizeName(const char* family) {
+  CFX_ByteString norm(family);
+  norm.Remove(' ');
+  norm.Remove('-');
+  norm.Remove(',');
+  int pos = norm.Find('+');
+  if (pos > 0)
+    norm = norm.Left(pos);
+  norm.MakeLower();
+  return norm;
+}
+
+uint8_t GetCharsetFromCodePage(uint16_t codepage) {
+  const CODEPAGE_MAP* pEnd =
+      g_Codepage2CharsetTable + FX_ArraySize(g_Codepage2CharsetTable);
+  const CODEPAGE_MAP* pCharmap =
+      std::lower_bound(g_Codepage2CharsetTable, pEnd, codepage,
+                       [](const CODEPAGE_MAP& charset, uint16_t page) {
+                         return charset.codepage < page;
+                       });
+  if (pCharmap < pEnd && codepage == pCharmap->codepage)
+    return pCharmap->charset;
+  return FX_CHARSET_Default;
+}
+
+CFX_ByteString GetFontFamily(CFX_ByteString fontName, int nStyle) {
+  if (fontName.Find("Script") >= 0) {
+    if ((nStyle & FX_FONT_STYLE_Bold) == FX_FONT_STYLE_Bold)
+      fontName = "ScriptMTBold";
+    else if (fontName.Find("Palace") >= 0)
+      fontName = "PalaceScriptMT";
+    else if (fontName.Find("French") >= 0)
+      fontName = "FrenchScriptMT";
+    else if (fontName.Find("FreeStyle") >= 0)
+      fontName = "FreeStyleScript";
+    return fontName;
+  }
+  AltFontFamily* found = reinterpret_cast<AltFontFamily*>(bsearch(
+      fontName.c_str(), g_AltFontFamilies, FX_ArraySize(g_AltFontFamilies),
+      sizeof(AltFontFamily), CompareFontFamilyString));
+  return found ? CFX_ByteString(found->m_pFontFamily) : fontName;
+}
+
+CFX_ByteString ParseStyle(const char* pStyle, int iLen, int iIndex) {
+  std::ostringstream buf;
+  if (!iLen || iLen <= iIndex)
+    return CFX_ByteString(buf);
+  while (iIndex < iLen) {
+    if (pStyle[iIndex] == ',')
+      break;
+    buf << pStyle[iIndex];
+    ++iIndex;
+  }
+  return CFX_ByteString(buf);
+}
+
+int32_t GetStyleType(const CFX_ByteString& bsStyle, bool bReverse) {
+  int32_t iLen = bsStyle.GetLength();
+  if (!iLen)
+    return -1;
+  int iSize = FX_ArraySize(g_FontStyles);
+  const FX_FontStyle* pStyle = nullptr;
+  for (int i = iSize - 1; i >= 0; --i) {
+    pStyle = g_FontStyles + i;
+    if (!pStyle || pStyle->len > iLen)
+      continue;
+
+    if (bReverse) {
+      if (bsStyle.Right(pStyle->len).Compare(pStyle->style) == 0)
+        return i;
+    } else {
+      if (bsStyle.Left(pStyle->len).Compare(pStyle->style) == 0)
+        return i;
+    }
+  }
+  return -1;
+}
+
+bool CheckSupportThirdPartFont(CFX_ByteString name, int& PitchFamily) {
+  if (name == "MyriadPro") {
+    PitchFamily &= ~FXFONT_FF_ROMAN;
+    return true;
+  }
+  return false;
+}
+
+void UpdatePitchFamily(uint32_t flags, int& PitchFamily) {
+  if (flags & FXFONT_SERIF)
+    PitchFamily |= FXFONT_FF_ROMAN;
+  if (flags & FXFONT_SCRIPT)
+    PitchFamily |= FXFONT_FF_SCRIPT;
+  if (flags & FXFONT_FIXED_PITCH)
+    PitchFamily |= FXFONT_FF_FIXEDPITCH;
+}
+
+}  // namespace
+
+CFX_FontMapper::CFX_FontMapper(CFX_FontMgr* mgr)
+    : m_bListLoaded(false), m_pFontMgr(mgr) {
+  m_MMFaces[0] = nullptr;
+  m_MMFaces[1] = nullptr;
+  memset(m_FoxitFaces, 0, sizeof(m_FoxitFaces));
+}
+
+CFX_FontMapper::~CFX_FontMapper() {
+  for (size_t i = 0; i < FX_ArraySize(m_FoxitFaces); ++i) {
+    if (m_FoxitFaces[i])
+      FXFT_Done_Face(m_FoxitFaces[i]);
+  }
+  if (m_MMFaces[0])
+    FXFT_Done_Face(m_MMFaces[0]);
+  if (m_MMFaces[1])
+    FXFT_Done_Face(m_MMFaces[1]);
+}
+
+void CFX_FontMapper::SetSystemFontInfo(
+    std::unique_ptr<IFX_SystemFontInfo> pFontInfo) {
+  if (!pFontInfo)
+    return;
+
+  m_pFontInfo = std::move(pFontInfo);
+}
+
+CFX_ByteString CFX_FontMapper::GetPSNameFromTT(void* hFont) {
+  if (!m_pFontInfo)
+    return CFX_ByteString();
+
+  uint32_t size = m_pFontInfo->GetFontData(hFont, kTableNAME, nullptr, 0);
+  if (!size)
+    return CFX_ByteString();
+
+  std::vector<uint8_t> buffer(size);
+  uint8_t* buffer_ptr = buffer.data();
+  uint32_t bytes_read =
+      m_pFontInfo->GetFontData(hFont, kTableNAME, buffer_ptr, size);
+  return bytes_read == size ? GetNameFromTT(buffer_ptr, bytes_read, 6)
+                            : CFX_ByteString();
+}
+
+void CFX_FontMapper::AddInstalledFont(const CFX_ByteString& name, int charset) {
+  if (!m_pFontInfo)
+    return;
+
+  m_FaceArray.push_back({name, static_cast<uint32_t>(charset)});
+  if (name == m_LastFamily)
+    return;
+
+  bool bLocalized = std::any_of(name.begin(), name.end(), [](const char& c) {
+    return static_cast<uint8_t>(c) > 0x80;
+  });
+
+  if (bLocalized) {
+    void* hFont = m_pFontInfo->GetFont(name.c_str());
+    if (!hFont) {
+      int iExact;
+      hFont = m_pFontInfo->MapFont(0, 0, FX_CHARSET_Default, 0, name.c_str(),
+                                   iExact);
+      if (!hFont)
+        return;
+    }
+
+    CFX_ByteString new_name = GetPSNameFromTT(hFont);
+    if (!new_name.IsEmpty())
+      m_LocalizedTTFonts.push_back(std::make_pair(new_name, name));
+    m_pFontInfo->DeleteFont(hFont);
+  }
+  m_InstalledTTFonts.push_back(name);
+  m_LastFamily = name;
+}
+
+void CFX_FontMapper::LoadInstalledFonts() {
+  if (!m_pFontInfo || m_bListLoaded)
+    return;
+
+  m_pFontInfo->EnumFontList(this);
+  m_bListLoaded = true;
+}
+
+CFX_ByteString CFX_FontMapper::MatchInstalledFonts(
+    const CFX_ByteString& norm_name) {
+  LoadInstalledFonts();
+  int i;
+  for (i = pdfium::CollectionSize<int>(m_InstalledTTFonts) - 1; i >= 0; i--) {
+    CFX_ByteString norm1 = TT_NormalizeName(m_InstalledTTFonts[i].c_str());
+    if (norm1 == norm_name)
+      return m_InstalledTTFonts[i];
+  }
+  for (i = pdfium::CollectionSize<int>(m_LocalizedTTFonts) - 1; i >= 0; i--) {
+    CFX_ByteString norm1 =
+        TT_NormalizeName(m_LocalizedTTFonts[i].first.c_str());
+    if (norm1 == norm_name)
+      return m_LocalizedTTFonts[i].second;
+  }
+  return CFX_ByteString();
+}
+
+FXFT_Face CFX_FontMapper::UseInternalSubst(CFX_SubstFont* pSubstFont,
+                                           int iBaseFont,
+                                           int italic_angle,
+                                           int weight,
+                                           int picthfamily) {
+  if (iBaseFont < kNumStandardFonts) {
+    if (m_FoxitFaces[iBaseFont])
+      return m_FoxitFaces[iBaseFont];
+    const uint8_t* pFontData = nullptr;
+    uint32_t size = 0;
+    if (m_pFontMgr->GetBuiltinFont(iBaseFont, &pFontData, &size)) {
+      m_FoxitFaces[iBaseFont] = m_pFontMgr->GetFixedFace(pFontData, size, 0);
+      return m_FoxitFaces[iBaseFont];
+    }
+  }
+  pSubstFont->m_SubstFlags |= FXFONT_SUBST_MM;
+  pSubstFont->m_ItalicAngle = italic_angle;
+  if (weight)
+    pSubstFont->m_Weight = weight;
+  if (picthfamily & FXFONT_FF_ROMAN) {
+    pSubstFont->m_Weight = pSubstFont->m_Weight * 4 / 5;
+    pSubstFont->m_Family = "Chrome Serif";
+    if (m_MMFaces[1])
+      return m_MMFaces[1];
+    const uint8_t* pFontData = nullptr;
+    uint32_t size = 0;
+    m_pFontMgr->GetBuiltinFont(14, &pFontData, &size);
+    m_MMFaces[1] = m_pFontMgr->GetFixedFace(pFontData, size, 0);
+    return m_MMFaces[1];
+  }
+  pSubstFont->m_Family = "Chrome Sans";
+  if (m_MMFaces[0])
+    return m_MMFaces[0];
+  const uint8_t* pFontData = nullptr;
+  uint32_t size = 0;
+  m_pFontMgr->GetBuiltinFont(15, &pFontData, &size);
+  m_MMFaces[0] = m_pFontMgr->GetFixedFace(pFontData, size, 0);
+  return m_MMFaces[0];
+}
+
+FXFT_Face CFX_FontMapper::FindSubstFont(const CFX_ByteString& name,
+                                        bool bTrueType,
+                                        uint32_t flags,
+                                        int weight,
+                                        int italic_angle,
+                                        int WindowCP,
+                                        CFX_SubstFont* pSubstFont) {
+  if (!(flags & FXFONT_USEEXTERNATTR)) {
+    weight = FXFONT_FW_NORMAL;
+    italic_angle = 0;
+  }
+  CFX_ByteString SubstName = name;
+  SubstName.Remove(' ');
+  if (bTrueType && name[0] == '@')
+    SubstName = name.Mid(1);
+  PDF_GetStandardFontName(&SubstName);
+  if (SubstName == "Symbol" && !bTrueType) {
+    pSubstFont->m_Family = "Chrome Symbol";
+    pSubstFont->m_Charset = FX_CHARSET_Symbol;
+    return UseInternalSubst(pSubstFont, 12, italic_angle, weight, 0);
+  }
+  if (SubstName == "ZapfDingbats") {
+    pSubstFont->m_Family = "Chrome Dingbats";
+    pSubstFont->m_Charset = FX_CHARSET_Symbol;
+    return UseInternalSubst(pSubstFont, 13, italic_angle, weight, 0);
+  }
+  int iBaseFont = 0;
+  CFX_ByteString family;
+  CFX_ByteString style;
+  bool bHasComma = false;
+  bool bHasHyphen = false;
+  int find = SubstName.Find(",", 0);
+  if (find >= 0) {
+    family = SubstName.Left(find);
+    PDF_GetStandardFontName(&family);
+    style = SubstName.Mid(find + 1);
+    bHasComma = true;
+  } else {
+    family = SubstName;
+  }
+  for (; iBaseFont < 12; iBaseFont++) {
+    if (family == CFX_ByteStringC(g_Base14FontNames[iBaseFont]))
+      break;
+  }
+  int PitchFamily = 0;
+  bool bItalic = false;
+  uint32_t nStyle = 0;
+  bool bStyleAvail = false;
+  if (iBaseFont < 12) {
+    if ((iBaseFont % 4) == 1 || (iBaseFont % 4) == 2)
+      nStyle |= FX_FONT_STYLE_Bold;
+    if ((iBaseFont % 4) / 2)
+      nStyle |= FX_FONT_STYLE_Italic;
+    if (iBaseFont < 4)
+      PitchFamily |= FXFONT_FF_FIXEDPITCH;
+    if (iBaseFont >= 8)
+      PitchFamily |= FXFONT_FF_ROMAN;
+  } else {
+    iBaseFont = kNumStandardFonts;
+    if (!bHasComma) {
+      find = family.ReverseFind('-');
+      if (find >= 0) {
+        style = family.Mid(find + 1);
+        family = family.Left(find);
+        bHasHyphen = true;
+      }
+    }
+    if (!bHasHyphen) {
+      int nLen = family.GetLength();
+      int32_t nRet = GetStyleType(family, true);
+      if (nRet > -1) {
+        family = family.Left(nLen - g_FontStyles[nRet].len);
+        if (nRet == 0)
+          nStyle |= FX_FONT_STYLE_Bold;
+        else if (nRet == 1)
+          nStyle |= FX_FONT_STYLE_Italic;
+        else if (nRet == 2)
+          nStyle |= (FX_FONT_STYLE_Bold | FX_FONT_STYLE_Italic);
+      }
+    }
+    UpdatePitchFamily(flags, PitchFamily);
+  }
+  if (!style.IsEmpty()) {
+    int nLen = style.GetLength();
+    const char* pStyle = style.c_str();
+    int i = 0;
+    bool bFirstItem = true;
+    CFX_ByteString buf;
+    while (i < nLen) {
+      buf = ParseStyle(pStyle, nLen, i);
+      int32_t nRet = GetStyleType(buf, false);
+      if ((i && !bStyleAvail) || (!i && nRet < 0)) {
+        family = SubstName;
+        iBaseFont = kNumStandardFonts;
+        break;
+      }
+      if (nRet >= 0) {
+        bStyleAvail = true;
+      }
+      if (nRet == 1) {
+        if (bFirstItem) {
+          nStyle |= FX_FONT_STYLE_Italic;
+        } else {
+          family = SubstName;
+          iBaseFont = kNumStandardFonts;
+        }
+        break;
+      }
+      if (nRet == 0) {
+        if (nStyle & FX_FONT_STYLE_Bold)
+          nStyle |= FX_FONT_STYLE_BoldBold;
+        else
+          nStyle |= FX_FONT_STYLE_Bold;
+        bFirstItem = false;
+      } else if (nRet == 2) {
+        nStyle |= FX_FONT_STYLE_Italic;
+        if (nStyle & FX_FONT_STYLE_Bold)
+          nStyle |= FX_FONT_STYLE_BoldBold;
+        else
+          nStyle |= FX_FONT_STYLE_Bold;
+        bFirstItem = false;
+      }
+      i += buf.GetLength() + 1;
+    }
+  }
+  weight = weight ? weight : FXFONT_FW_NORMAL;
+  int old_weight = weight;
+  if (nStyle) {
+    weight =
+        nStyle & FX_FONT_STYLE_BoldBold
+            ? 900
+            : (nStyle & FX_FONT_STYLE_Bold ? FXFONT_FW_BOLD : FXFONT_FW_NORMAL);
+  }
+  if (nStyle & FX_FONT_STYLE_Italic)
+    bItalic = true;
+  int iExact = 0;
+  int Charset = FX_CHARSET_ANSI;
+  if (WindowCP)
+    Charset = GetCharsetFromCodePage(WindowCP);
+  else if (iBaseFont == kNumStandardFonts && (flags & FXFONT_SYMBOLIC))
+    Charset = FX_CHARSET_Symbol;
+  bool bCJK = (Charset == FX_CHARSET_ShiftJIS ||
+               Charset == FX_CHARSET_ChineseSimplified ||
+               Charset == FX_CHARSET_Hangul ||
+               Charset == FX_CHARSET_ChineseTraditional);
+  if (!m_pFontInfo) {
+    return UseInternalSubst(pSubstFont, iBaseFont, italic_angle, old_weight,
+                            PitchFamily);
+  }
+  family = GetFontFamily(family, nStyle);
+  CFX_ByteString match = MatchInstalledFonts(TT_NormalizeName(family.c_str()));
+  if (match.IsEmpty() && family != SubstName &&
+      (!bHasComma && (!bHasHyphen || (bHasHyphen && !bStyleAvail)))) {
+    match = MatchInstalledFonts(TT_NormalizeName(SubstName.c_str()));
+  }
+  if (match.IsEmpty() && iBaseFont >= kNumStandardFonts) {
+    if (!bCJK) {
+      if (!CheckSupportThirdPartFont(family, PitchFamily)) {
+        bItalic = italic_angle != 0;
+        weight = old_weight;
+      }
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_LINUX_
+      if (SubstName.Find("Narrow") > 0 || SubstName.Find("Condensed") > 0)
+        family = "LiberationSansNarrow";
+#elif _FXM_PLATFORM_ == _FXM_PLATFORM_ANDROID_
+      if (family.Find("Narrow") > 0 || family.Find("Condensed") > 0)
+        family = "RobotoCondensed";
+#else
+      if (family.Find("Narrow") > 0 || family.Find("Condensed") > 0)
+        family = "ArialNarrow";
+#endif  // _FXM_PLATFORM_ == _FXM_PLATFORM_LINUX_
+    } else {
+      pSubstFont->m_bSubstCJK = true;
+      if (nStyle)
+        pSubstFont->m_WeightCJK = nStyle ? weight : FXFONT_FW_NORMAL;
+      if (nStyle & FX_FONT_STYLE_Italic)
+        pSubstFont->m_bItalicCJK = true;
+    }
+  } else {
+    italic_angle = 0;
+    weight =
+        nStyle & FX_FONT_STYLE_BoldBold
+            ? 900
+            : (nStyle & FX_FONT_STYLE_Bold ? FXFONT_FW_BOLD : FXFONT_FW_NORMAL);
+  }
+  if (!match.IsEmpty() || iBaseFont < kNumStandardFonts) {
+    if (!match.IsEmpty())
+      family = match;
+    if (iBaseFont < kNumStandardFonts) {
+      if (nStyle && !(iBaseFont % 4)) {
+        if ((nStyle & 0x3) == 1)
+          iBaseFont += 1;
+        if ((nStyle & 0x3) == 2)
+          iBaseFont += 3;
+        if ((nStyle & 0x3) == 3)
+          iBaseFont += 2;
+      }
+      family = g_Base14FontNames[iBaseFont];
+    }
+  } else {
+    if (flags & FXFONT_ITALIC)
+      bItalic = true;
+  }
+  iExact = !match.IsEmpty();
+  void* hFont = m_pFontInfo->MapFont(weight, bItalic, Charset, PitchFamily,
+                                     family.c_str(), iExact);
+  if (iExact)
+    pSubstFont->m_SubstFlags |= FXFONT_SUBST_EXACT;
+  if (!hFont) {
+#ifdef PDF_ENABLE_XFA
+    if (flags & FXFONT_EXACTMATCH)
+      return nullptr;
+#endif  // PDF_ENABLE_XFA
+    if (bCJK) {
+      bItalic = italic_angle != 0;
+      weight = old_weight;
+    }
+    if (!match.IsEmpty()) {
+      hFont = m_pFontInfo->GetFont(match.c_str());
+      if (!hFont) {
+        return UseInternalSubst(pSubstFont, iBaseFont, italic_angle, old_weight,
+                                PitchFamily);
+      }
+    } else {
+      if (Charset == FX_CHARSET_Symbol) {
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ || \
+    _FXM_PLATFORM_ == _FXM_PLATFORM_ANDROID_
+        if (SubstName == "Symbol") {
+          pSubstFont->m_Family = "Chrome Symbol";
+          pSubstFont->m_Charset = FX_CHARSET_Symbol;
+          return UseInternalSubst(pSubstFont, 12, italic_angle, old_weight,
+                                  PitchFamily);
+        }
+#endif
+        return FindSubstFont(family, bTrueType, flags & ~FXFONT_SYMBOLIC,
+                             weight, italic_angle, 0, pSubstFont);
+      }
+      if (Charset == FX_CHARSET_ANSI) {
+        return UseInternalSubst(pSubstFont, iBaseFont, italic_angle, old_weight,
+                                PitchFamily);
+      }
+
+      auto it =
+          std::find_if(m_FaceArray.begin(), m_FaceArray.end(),
+                       [Charset](const FaceData& face) {
+                         return face.charset == static_cast<uint32_t>(Charset);
+                       });
+      if (it == m_FaceArray.end()) {
+        return UseInternalSubst(pSubstFont, iBaseFont, italic_angle, old_weight,
+                                PitchFamily);
+      }
+      hFont = m_pFontInfo->GetFont(it->name.c_str());
+    }
+  }
+  if (!hFont)
+    return nullptr;
+
+  m_pFontInfo->GetFaceName(hFont, &SubstName);
+  if (Charset == FX_CHARSET_Default)
+    m_pFontInfo->GetFontCharset(hFont, &Charset);
+  uint32_t ttc_size = m_pFontInfo->GetFontData(hFont, kTableTTCF, nullptr, 0);
+  uint32_t font_size = m_pFontInfo->GetFontData(hFont, 0, nullptr, 0);
+  if (font_size == 0 && ttc_size == 0) {
+    m_pFontInfo->DeleteFont(hFont);
+    return nullptr;
+  }
+  FXFT_Face face = nullptr;
+  if (ttc_size)
+    face = GetCachedTTCFace(hFont, kTableTTCF, ttc_size, font_size);
+  else
+    face = GetCachedFace(hFont, SubstName, weight, bItalic, font_size);
+  if (!face) {
+    m_pFontInfo->DeleteFont(hFont);
+    return nullptr;
+  }
+  pSubstFont->m_Family = SubstName;
+  pSubstFont->m_Charset = Charset;
+  bool bNeedUpdateWeight = false;
+  if (FXFT_Is_Face_Bold(face))
+    bNeedUpdateWeight = weight != FXFONT_FW_BOLD;
+  else
+    bNeedUpdateWeight = weight != FXFONT_FW_NORMAL;
+  if (bNeedUpdateWeight)
+    pSubstFont->m_Weight = weight;
+  if (bItalic && !FXFT_Is_Face_Italic(face)) {
+    if (italic_angle == 0)
+      italic_angle = -12;
+    else if (abs(italic_angle) < 5)
+      italic_angle = 0;
+    pSubstFont->m_ItalicAngle = italic_angle;
+  }
+  m_pFontInfo->DeleteFont(hFont);
+  return face;
+}
+
+#ifdef PDF_ENABLE_XFA
+FXFT_Face CFX_FontMapper::FindSubstFontByUnicode(uint32_t dwUnicode,
+                                                 uint32_t flags,
+                                                 int weight,
+                                                 int italic_angle) {
+  if (!m_pFontInfo)
+    return nullptr;
+
+  bool bItalic = (flags & FXFONT_ITALIC) != 0;
+  int PitchFamily = 0;
+  UpdatePitchFamily(flags, PitchFamily);
+  void* hFont =
+      m_pFontInfo->MapFontByUnicode(dwUnicode, weight, bItalic, PitchFamily);
+  if (!hFont)
+    return nullptr;
+
+  uint32_t ttc_size = m_pFontInfo->GetFontData(hFont, 0x74746366, nullptr, 0);
+  uint32_t font_size = m_pFontInfo->GetFontData(hFont, 0, nullptr, 0);
+  if (font_size == 0 && ttc_size == 0) {
+    m_pFontInfo->DeleteFont(hFont);
+    return nullptr;
+  }
+  FXFT_Face face = nullptr;
+  if (ttc_size) {
+    face = GetCachedTTCFace(hFont, 0x74746366, ttc_size, font_size);
+  } else {
+    CFX_ByteString SubstName;
+    m_pFontInfo->GetFaceName(hFont, &SubstName);
+    face = GetCachedFace(hFont, SubstName, weight, bItalic, font_size);
+  }
+  m_pFontInfo->DeleteFont(hFont);
+  return face;
+}
+#endif  // PDF_ENABLE_XFA
+
+int CFX_FontMapper::GetFaceSize() const {
+  return pdfium::CollectionSize<int>(m_FaceArray);
+}
+
+bool CFX_FontMapper::IsBuiltinFace(const FXFT_Face face) const {
+  for (size_t i = 0; i < MM_FACE_COUNT; ++i) {
+    if (m_MMFaces[i] == face)
+      return true;
+  }
+  for (size_t i = 0; i < FOXIT_FACE_COUNT; ++i) {
+    if (m_FoxitFaces[i] == face)
+      return true;
+  }
+  return false;
+}
+
+FXFT_Face CFX_FontMapper::GetCachedTTCFace(void* hFont,
+                                           const uint32_t tableTTCF,
+                                           uint32_t ttc_size,
+                                           uint32_t font_size) {
+  FXFT_Face face;
+  uint8_t buffer[1024];
+  m_pFontInfo->GetFontData(hFont, tableTTCF, buffer, FX_ArraySize(buffer));
+  uint32_t* pBuffer = reinterpret_cast<uint32_t*>(buffer);
+  uint32_t checksum = 0;
+  for (int i = 0; i < 256; i++)
+    checksum += pBuffer[i];
+  uint8_t* pFontData;
+  face = m_pFontMgr->GetCachedTTCFace(ttc_size, checksum, ttc_size - font_size,
+                                      pFontData);
+  if (!face) {
+    pFontData = FX_Alloc(uint8_t, ttc_size);
+    m_pFontInfo->GetFontData(hFont, tableTTCF, pFontData, ttc_size);
+    face = m_pFontMgr->AddCachedTTCFace(ttc_size, checksum, pFontData, ttc_size,
+                                        ttc_size - font_size);
+  }
+  return face;
+}
+
+FXFT_Face CFX_FontMapper::GetCachedFace(void* hFont,
+                                        CFX_ByteString SubstName,
+                                        int weight,
+                                        bool bItalic,
+                                        uint32_t font_size) {
+  FXFT_Face face;
+  uint8_t* pFontData;
+  face = m_pFontMgr->GetCachedFace(SubstName, weight, bItalic, pFontData);
+  if (!face) {
+    pFontData = FX_Alloc(uint8_t, font_size);
+    m_pFontInfo->GetFontData(hFont, 0, pFontData, font_size);
+    face =
+        m_pFontMgr->AddCachedFace(SubstName, weight, bItalic, pFontData,
+                                  font_size, m_pFontInfo->GetFaceIndex(hFont));
+  }
+  return face;
+}
+
+int PDF_GetStandardFontName(CFX_ByteString* name) {
+  AltFontName* found = static_cast<AltFontName*>(
+      bsearch(name->c_str(), g_AltFontNames, FX_ArraySize(g_AltFontNames),
+              sizeof(AltFontName), CompareString));
+  if (!found)
+    return -1;
+
+  *name = g_Base14FontNames[found->m_Index];
+  return found->m_Index;
+}