Clean up fpf_skiafontmgr

Remove unused methods, create namespace, nits.

Review-Url: https://chromiumcodereview.appspot.com/2433543002

1 files changed, 0 insertions, 523 deletions

diff --git a/core/fxge/android/fpf_skiafontmgr.cpp b/core/fxge/android/fpf_skiafontmgr.cpp
deleted file mode 100644
index 3bd5cb42d1..0000000000
--- a/core/fxge/android/fpf_skiafontmgr.cpp
+++ /dev/null
@@ -1,523 +0,0 @@
-// Copyright 2014 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/fxcrt/fx_system.h"
-
-#define FPF_SKIAMATCHWEIGHT_NAME1 62
-#define FPF_SKIAMATCHWEIGHT_NAME2 60
-#define FPF_SKIAMATCHWEIGHT_1 16
-#define FPF_SKIAMATCHWEIGHT_2 8
-
-#include "core/fxcrt/fx_ext.h"
-#include "core/fxge/android/fpf_skiafont.h"
-#include "core/fxge/android/fpf_skiafontmgr.h"
-#include "core/fxge/fx_freetype.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-static unsigned long FPF_SkiaStream_Read(FXFT_Stream stream,
-                                         unsigned long offset,
-                                         unsigned char* buffer,
-                                         unsigned long count) {
-  IFX_FileRead* pFileRead = (IFX_FileRead*)stream->descriptor.pointer;
-  if (!pFileRead) {
-    return 0;
-  }
-  if (count > 0) {
-    if (!pFileRead->ReadBlock(buffer, (FX_FILESIZE)offset, (size_t)count)) {
-      return 0;
-    }
-  }
-  return count;
-}
-static void FPF_SkiaStream_Close(FXFT_Stream stream) {}
-#ifdef __cplusplus
-};
-#endif
-struct FPF_SKIAFONTMAP {
-  uint32_t dwFamily;
-  uint32_t dwSubSt;
-};
-static const FPF_SKIAFONTMAP g_SkiaFontmap[] = {
-    {0x58c5083, 0xc8d2e345},  {0x5dfade2, 0xe1633081},
-    {0x684317d, 0xe1633081},  {0x14ee2d13, 0xc8d2e345},
-    {0x3918fe2d, 0xbbeeec72}, {0x3b98b31c, 0xe1633081},
-    {0x3d49f40e, 0xe1633081}, {0x432c41c5, 0xe1633081},
-    {0x491b6ad0, 0xe1633081}, {0x5612cab1, 0x59b9f8f1},
-    {0x779ce19d, 0xc8d2e345}, {0x7cc9510b, 0x59b9f8f1},
-    {0x83746053, 0xbbeeec72}, {0xaaa60c03, 0xbbeeec72},
-    {0xbf85ff26, 0xe1633081}, {0xc04fe601, 0xbbeeec72},
-    {0xca3812d5, 0x59b9f8f1}, {0xca383e15, 0x59b9f8f1},
-    {0xcad5eaf6, 0x59b9f8f1}, {0xcb7a04c8, 0xc8d2e345},
-    {0xfb4ce0de, 0xe1633081},
-};
-uint32_t FPF_SkiaGetSubstFont(uint32_t dwHash) {
-  int32_t iStart = 0;
-  int32_t iEnd = sizeof(g_SkiaFontmap) / sizeof(FPF_SKIAFONTMAP);
-  while (iStart <= iEnd) {
-    int32_t iMid = (iStart + iEnd) / 2;
-    const FPF_SKIAFONTMAP* pItem = &g_SkiaFontmap[iMid];
-    if (dwHash < pItem->dwFamily) {
-      iEnd = iMid - 1;
-    } else if (dwHash > pItem->dwFamily) {
-      iStart = iMid + 1;
-    } else {
-      return pItem->dwSubSt;
-    }
-  }
-  return 0;
-}
-static const FPF_SKIAFONTMAP g_SkiaSansFontMap[] = {
-    {0x58c5083, 0xd5b8d10f},  {0x14ee2d13, 0xd5b8d10f},
-    {0x779ce19d, 0xd5b8d10f}, {0xcb7a04c8, 0xd5b8d10f},
-    {0xfb4ce0de, 0xd5b8d10f},
-};
-uint32_t FPF_SkiaGetSansFont(uint32_t dwHash) {
-  int32_t iStart = 0;
-  int32_t iEnd = sizeof(g_SkiaSansFontMap) / sizeof(FPF_SKIAFONTMAP);
-  while (iStart <= iEnd) {
-    int32_t iMid = (iStart + iEnd) / 2;
-    const FPF_SKIAFONTMAP* pItem = &g_SkiaSansFontMap[iMid];
-    if (dwHash < pItem->dwFamily) {
-      iEnd = iMid - 1;
-    } else if (dwHash > pItem->dwFamily) {
-      iStart = iMid + 1;
-    } else {
-      return pItem->dwSubSt;
-    }
-  }
-  return 0;
-}
-static uint32_t FPF_GetHashCode_StringA(const FX_CHAR* pStr,
-                                        int32_t iLength,
-                                        FX_BOOL bIgnoreCase = FALSE) {
-  if (!pStr) {
-    return 0;
-  }
-  if (iLength < 0) {
-    iLength = FXSYS_strlen(pStr);
-  }
-  const FX_CHAR* pStrEnd = pStr + iLength;
-  uint32_t uHashCode = 0;
-  if (bIgnoreCase) {
-    while (pStr < pStrEnd) {
-      uHashCode = 31 * uHashCode + FXSYS_tolower(*pStr++);
-    }
-  } else {
-    while (pStr < pStrEnd) {
-      uHashCode = 31 * uHashCode + *pStr++;
-    }
-  }
-  return uHashCode;
-}
-enum FPF_SKIACHARSET {
-  FPF_SKIACHARSET_Ansi = 1 << 0,
-  FPF_SKIACHARSET_Default = 1 << 1,
-  FPF_SKIACHARSET_Symbol = 1 << 2,
-  FPF_SKIACHARSET_ShiftJIS = 1 << 3,
-  FPF_SKIACHARSET_Korean = 1 << 4,
-  FPF_SKIACHARSET_Johab = 1 << 5,
-  FPF_SKIACHARSET_GB2312 = 1 << 6,
-  FPF_SKIACHARSET_BIG5 = 1 << 7,
-  FPF_SKIACHARSET_Greek = 1 << 8,
-  FPF_SKIACHARSET_Turkish = 1 << 9,
-  FPF_SKIACHARSET_Vietnamese = 1 << 10,
-  FPF_SKIACHARSET_Hebrew = 1 << 11,
-  FPF_SKIACHARSET_Arabic = 1 << 12,
-  FPF_SKIACHARSET_Baltic = 1 << 13,
-  FPF_SKIACHARSET_Cyrillic = 1 << 14,
-  FPF_SKIACHARSET_Thai = 1 << 15,
-  FPF_SKIACHARSET_EeasternEuropean = 1 << 16,
-  FPF_SKIACHARSET_PC = 1 << 17,
-  FPF_SKIACHARSET_OEM = 1 << 18,
-};
-static uint32_t FPF_SkiaGetCharset(uint8_t uCharset) {
-  switch (uCharset) {
-    case FXFONT_ANSI_CHARSET:
-      return FPF_SKIACHARSET_Ansi;
-    case FXFONT_DEFAULT_CHARSET:
-      return FPF_SKIACHARSET_Default;
-    case FXFONT_SYMBOL_CHARSET:
-      return FPF_SKIACHARSET_Symbol;
-    case FXFONT_SHIFTJIS_CHARSET:
-      return FPF_SKIACHARSET_ShiftJIS;
-    case FXFONT_HANGUL_CHARSET:
-      return FPF_SKIACHARSET_Korean;
-    case FXFONT_GB2312_CHARSET:
-      return FPF_SKIACHARSET_GB2312;
-    case FXFONT_CHINESEBIG5_CHARSET:
-      return FPF_SKIACHARSET_BIG5;
-    case FXFONT_GREEK_CHARSET:
-      return FPF_SKIACHARSET_Greek;
-    case FXFONT_TURKISH_CHARSET:
-      return FPF_SKIACHARSET_Turkish;
-    case FXFONT_HEBREW_CHARSET:
-      return FPF_SKIACHARSET_Hebrew;
-    case FXFONT_ARABIC_CHARSET:
-      return FPF_SKIACHARSET_Arabic;
-    case FXFONT_BALTIC_CHARSET:
-      return FPF_SKIACHARSET_Baltic;
-    case FXFONT_RUSSIAN_CHARSET:
-      return FPF_SKIACHARSET_Cyrillic;
-    case FXFONT_THAI_CHARSET:
-      return FPF_SKIACHARSET_Thai;
-    case FXFONT_EASTEUROPE_CHARSET:
-      return FPF_SKIACHARSET_EeasternEuropean;
-  }
-  return FPF_SKIACHARSET_Default;
-}
-static uint32_t FPF_SKIANormalizeFontName(const CFX_ByteStringC& bsfamily) {
-  uint32_t dwHash = 0;
-  int32_t iLength = bsfamily.GetLength();
-  const FX_CHAR* pBuffer = bsfamily.c_str();
-  for (int32_t i = 0; i < iLength; i++) {
-    FX_CHAR ch = pBuffer[i];
-    if (ch == ' ' || ch == '-' || ch == ',') {
-      continue;
-    }
-    dwHash = 31 * dwHash + FXSYS_tolower(ch);
-  }
-  return dwHash;
-}
-static uint32_t FPF_SKIAGetFamilyHash(const CFX_ByteStringC& bsFamily,
-                                      uint32_t dwStyle,
-                                      uint8_t uCharset) {
-  CFX_ByteString bsFont(bsFamily);
-  if (dwStyle & FXFONT_BOLD) {
-    bsFont += "Bold";
-  }
-  if (dwStyle & FXFONT_ITALIC) {
-    bsFont += "Italic";
-  }
-  if (dwStyle & FXFONT_SERIF) {
-    bsFont += "Serif";
-  }
-  bsFont += uCharset;
-  return FPF_GetHashCode_StringA(bsFont.c_str(), bsFont.GetLength(), TRUE);
-}
-static FX_BOOL FPF_SkiaIsCJK(uint8_t uCharset) {
-  return (uCharset == FXFONT_GB2312_CHARSET) ||
-         (uCharset == FXFONT_CHINESEBIG5_CHARSET) ||
-         (uCharset == FXFONT_HANGUL_CHARSET) ||
-         (uCharset == FXFONT_SHIFTJIS_CHARSET);
-}
-static FX_BOOL FPF_SkiaMaybeSymbol(const CFX_ByteStringC& bsFacename) {
-  CFX_ByteString bsName(bsFacename);
-  bsName.MakeLower();
-  return bsName.Find("symbol") > -1;
-}
-static FX_BOOL FPF_SkiaMaybeArabic(const CFX_ByteStringC& bsFacename) {
-  CFX_ByteString bsName(bsFacename);
-  bsName.MakeLower();
-  return bsName.Find("arabic") > -1;
-}
-CFPF_SkiaFontMgr::CFPF_SkiaFontMgr() : m_bLoaded(FALSE), m_FTLibrary(nullptr) {}
-CFPF_SkiaFontMgr::~CFPF_SkiaFontMgr() {
-  for (const auto& pair : m_FamilyFonts) {
-    if (pair.second)
-      pair.second->Release();
-  }
-  m_FamilyFonts.clear();
-  for (auto it = m_FontFaces.rbegin(); it != m_FontFaces.rend(); ++it) {
-    delete *it;
-  }
-  m_FontFaces.clear();
-  if (m_FTLibrary) {
-    FXFT_Done_FreeType(m_FTLibrary);
-  }
-}
-FX_BOOL CFPF_SkiaFontMgr::InitFTLibrary() {
-  if (!m_FTLibrary)
-    FXFT_Init_FreeType(&m_FTLibrary);
-  return !!m_FTLibrary;
-}
-void CFPF_SkiaFontMgr::LoadSystemFonts() {
-  if (m_bLoaded) {
-    return;
-  }
-  ScanPath("/system/fonts");
-  OutputSystemFonts();
-  m_bLoaded = TRUE;
-}
-void CFPF_SkiaFontMgr::LoadPrivateFont(IFX_FileRead* pFontFile) {}
-void CFPF_SkiaFontMgr::LoadPrivateFont(const CFX_ByteStringC& bsFileName) {}
-void CFPF_SkiaFontMgr::LoadPrivateFont(void* pBuffer, size_t szBuffer) {}
-
-CFPF_SkiaFont* CFPF_SkiaFontMgr::CreateFont(const CFX_ByteStringC& bsFamilyname,
-                                            uint8_t uCharset,
-                                            uint32_t dwStyle,
-                                            uint32_t dwMatch) {
-  uint32_t dwHash = FPF_SKIAGetFamilyHash(bsFamilyname, dwStyle, uCharset);
-  auto it = m_FamilyFonts.find(dwHash);
-  if (it != m_FamilyFonts.end() && it->second)
-    return it->second->Retain();
-
-  uint32_t dwFaceName = FPF_SKIANormalizeFontName(bsFamilyname);
-  uint32_t dwSubst = FPF_SkiaGetSubstFont(dwFaceName);
-  uint32_t dwSubstSans = FPF_SkiaGetSansFont(dwFaceName);
-  FX_BOOL bMaybeSymbol = FPF_SkiaMaybeSymbol(bsFamilyname);
-  if (uCharset != FXFONT_ARABIC_CHARSET && FPF_SkiaMaybeArabic(bsFamilyname)) {
-    uCharset = FXFONT_ARABIC_CHARSET;
-  } else if (uCharset == FXFONT_ANSI_CHARSET &&
-             (dwMatch & FPF_MATCHFONT_REPLACEANSI)) {
-    uCharset = FXFONT_DEFAULT_CHARSET;
-  }
-  int32_t nExpectVal = FPF_SKIAMATCHWEIGHT_NAME1 + FPF_SKIAMATCHWEIGHT_1 * 3 +
-                       FPF_SKIAMATCHWEIGHT_2 * 2;
-  CFPF_SkiaFontDescriptor* pBestFontDes = nullptr;
-  int32_t nMax = -1;
-  int32_t nGlyphNum = 0;
-  for (auto it = m_FontFaces.rbegin(); it != m_FontFaces.rend(); ++it) {
-    CFPF_SkiaPathFont* pFontDes = static_cast<CFPF_SkiaPathFont*>(*it);
-    if (!(pFontDes->m_dwCharsets & FPF_SkiaGetCharset(uCharset))) {
-      continue;
-    }
-    int32_t nFind = 0;
-    uint32_t dwSysFontName = FPF_SKIANormalizeFontName(pFontDes->m_pFamily);
-    if (dwFaceName == dwSysFontName) {
-      nFind += FPF_SKIAMATCHWEIGHT_NAME1;
-    }
-    bool bMatchedName = (nFind == FPF_SKIAMATCHWEIGHT_NAME1);
-    if ((dwStyle & FXFONT_BOLD) == (pFontDes->m_dwStyle & FXFONT_BOLD)) {
-      nFind += FPF_SKIAMATCHWEIGHT_1;
-    }
-    if ((dwStyle & FXFONT_ITALIC) == (pFontDes->m_dwStyle & FXFONT_ITALIC)) {
-      nFind += FPF_SKIAMATCHWEIGHT_1;
-    }
-    if ((dwStyle & FXFONT_FIXED_PITCH) ==
-        (pFontDes->m_dwStyle & FXFONT_FIXED_PITCH)) {
-      nFind += FPF_SKIAMATCHWEIGHT_2;
-    }
-    if ((dwStyle & FXFONT_SERIF) == (pFontDes->m_dwStyle & FXFONT_SERIF)) {
-      nFind += FPF_SKIAMATCHWEIGHT_1;
-    }
-    if ((dwStyle & FXFONT_SCRIPT) == (pFontDes->m_dwStyle & FXFONT_SCRIPT)) {
-      nFind += FPF_SKIAMATCHWEIGHT_2;
-    }
-    if (dwSubst == dwSysFontName || dwSubstSans == dwSysFontName) {
-      nFind += FPF_SKIAMATCHWEIGHT_NAME2;
-      bMatchedName = true;
-    }
-    if (uCharset == FXFONT_DEFAULT_CHARSET || bMaybeSymbol) {
-      if (nFind > nMax && bMatchedName) {
-        nMax = nFind;
-        pBestFontDes = *it;
-      }
-    } else if (FPF_SkiaIsCJK(uCharset)) {
-      if (bMatchedName || pFontDes->m_iGlyphNum > nGlyphNum) {
-        pBestFontDes = *it;
-        nGlyphNum = pFontDes->m_iGlyphNum;
-      }
-    } else if (nFind > nMax) {
-      nMax = nFind;
-      pBestFontDes = *it;
-    }
-    if (nExpectVal <= nFind) {
-      pBestFontDes = *it;
-      break;
-    }
-  }
-  if (pBestFontDes) {
-    CFPF_SkiaFont* pFont = new CFPF_SkiaFont;
-    if (pFont->InitFont(this, pBestFontDes, bsFamilyname, dwStyle, uCharset)) {
-      m_FamilyFonts[dwHash] = pFont;
-      return pFont->Retain();
-    }
-    pFont->Release();
-  }
-  return nullptr;
-}
-
-FXFT_Face CFPF_SkiaFontMgr::GetFontFace(IFX_FileRead* pFileRead,
-                                        int32_t iFaceIndex) {
-  if (!pFileRead) {
-    return nullptr;
-  }
-  if (pFileRead->GetSize() == 0) {
-    return nullptr;
-  }
-  if (iFaceIndex < 0) {
-    return nullptr;
-  }
-  FXFT_StreamRec streamRec;
-  FXSYS_memset(&streamRec, 0, sizeof(FXFT_StreamRec));
-  streamRec.size = pFileRead->GetSize();
-  streamRec.descriptor.pointer = pFileRead;
-  streamRec.read = FPF_SkiaStream_Read;
-  streamRec.close = FPF_SkiaStream_Close;
-  FXFT_Open_Args args;
-  args.flags = FT_OPEN_STREAM;
-  args.stream = &streamRec;
-  FXFT_Face face;
-  if (FXFT_Open_Face(m_FTLibrary, &args, iFaceIndex, &face)) {
-    return nullptr;
-  }
-  FXFT_Set_Pixel_Sizes(face, 0, 64);
-  return face;
-}
-FXFT_Face CFPF_SkiaFontMgr::GetFontFace(const CFX_ByteStringC& bsFile,
-                                        int32_t iFaceIndex) {
-  if (bsFile.IsEmpty()) {
-    return nullptr;
-  }
-  if (iFaceIndex < 0) {
-    return nullptr;
-  }
-  FXFT_Open_Args args;
-  args.flags = FT_OPEN_PATHNAME;
-  args.pathname = const_cast<FT_String*>(bsFile.c_str());
-  FXFT_Face face;
-  if (FXFT_Open_Face(m_FTLibrary, &args, iFaceIndex, &face)) {
-    return FALSE;
-  }
-  FXFT_Set_Pixel_Sizes(face, 0, 64);
-  return face;
-}
-FXFT_Face CFPF_SkiaFontMgr::GetFontFace(const uint8_t* pBuffer,
-                                        size_t szBuffer,
-                                        int32_t iFaceIndex) {
-  if (!pBuffer || szBuffer < 1) {
-    return nullptr;
-  }
-  if (iFaceIndex < 0) {
-    return nullptr;
-  }
-  FXFT_Open_Args args;
-  args.flags = FT_OPEN_MEMORY;
-  args.memory_base = pBuffer;
-  args.memory_size = szBuffer;
-  FXFT_Face face;
-  if (FXFT_Open_Face(m_FTLibrary, &args, iFaceIndex, &face)) {
-    return FALSE;
-  }
-  FXFT_Set_Pixel_Sizes(face, 0, 64);
-  return face;
-}
-
-void CFPF_SkiaFontMgr::ScanPath(const CFX_ByteString& path) {
-  DIR* handle = FX_OpenFolder(path.c_str());
-  if (!handle) {
-    return;
-  }
-  CFX_ByteString filename;
-  bool bFolder = false;
-  while (FX_GetNextFile(handle, &filename, &bFolder)) {
-    if (bFolder) {
-      if (filename == "." || filename == "..")
-        continue;
-    } else {
-      CFX_ByteString ext = filename.Right(4);
-      ext.MakeLower();
-      if (ext != ".ttf" && ext != ".ttc" && ext != ".otf")
-        continue;
-    }
-    CFX_ByteString fullpath(path);
-    fullpath += "/";
-    fullpath += filename;
-    if (bFolder)
-      ScanPath(fullpath);
-    else
-      ScanFile(fullpath);
-  }
-  FX_CloseFolder(handle);
-}
-
-void CFPF_SkiaFontMgr::ScanFile(const CFX_ByteString& file) {
-  FXFT_Face face = GetFontFace(file.AsStringC());
-  if (face) {
-    CFPF_SkiaPathFont* pFontDesc = new CFPF_SkiaPathFont;
-    pFontDesc->SetPath(file.c_str());
-    ReportFace(face, pFontDesc);
-    m_FontFaces.push_back(pFontDesc);
-    FXFT_Done_Face(face);
-  }
-}
-
-static const uint32_t g_FPFSkiaFontCharsets[] = {
-    FPF_SKIACHARSET_Ansi,
-    FPF_SKIACHARSET_EeasternEuropean,
-    FPF_SKIACHARSET_Cyrillic,
-    FPF_SKIACHARSET_Greek,
-    FPF_SKIACHARSET_Turkish,
-    FPF_SKIACHARSET_Hebrew,
-    FPF_SKIACHARSET_Arabic,
-    FPF_SKIACHARSET_Baltic,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    FPF_SKIACHARSET_Thai,
-    FPF_SKIACHARSET_ShiftJIS,
-    FPF_SKIACHARSET_GB2312,
-    FPF_SKIACHARSET_Korean,
-    FPF_SKIACHARSET_BIG5,
-    FPF_SKIACHARSET_Johab,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    FPF_SKIACHARSET_OEM,
-    FPF_SKIACHARSET_Symbol,
-};
-
-static uint32_t FPF_SkiaGetFaceCharset(TT_OS2* pOS2) {
-  uint32_t dwCharset = 0;
-  if (pOS2) {
-    for (int32_t i = 0; i < 32; i++) {
-      if (pOS2->ulCodePageRange1 & (1 << i)) {
-        dwCharset |= g_FPFSkiaFontCharsets[i];
-      }
-    }
-  }
-  dwCharset |= FPF_SKIACHARSET_Default;
-  return dwCharset;
-}
-
-void CFPF_SkiaFontMgr::ReportFace(FXFT_Face face,
-                                  CFPF_SkiaFontDescriptor* pFontDesc) {
-  if (!face || !pFontDesc) {
-    return;
-  }
-  pFontDesc->SetFamily(FXFT_Get_Face_Family_Name(face));
-  if (FXFT_Is_Face_Bold(face)) {
-    pFontDesc->m_dwStyle |= FXFONT_BOLD;
-  }
-  if (FXFT_Is_Face_Italic(face)) {
-    pFontDesc->m_dwStyle |= FXFONT_ITALIC;
-  }
-  if (FT_IS_FIXED_WIDTH(face)) {
-    pFontDesc->m_dwStyle |= FXFONT_FIXED_PITCH;
-  }
-  TT_OS2* pOS2 = (TT_OS2*)FT_Get_Sfnt_Table(face, ft_sfnt_os2);
-  if (pOS2) {
-    if (pOS2->ulCodePageRange1 & (1 << 31)) {
-      pFontDesc->m_dwStyle |= FXFONT_SYMBOLIC;
-    }
-    if (pOS2->panose[0] == 2) {
-      uint8_t uSerif = pOS2->panose[1];
-      if ((uSerif > 1 && uSerif < 10) || uSerif > 13) {
-        pFontDesc->m_dwStyle |= FXFONT_SERIF;
-      }
-    }
-  }
-  if (pOS2 && (pOS2->ulCodePageRange1 & (1 << 31))) {
-    pFontDesc->m_dwStyle |= FXFONT_SYMBOLIC;
-  }
-  pFontDesc->m_dwCharsets = FPF_SkiaGetFaceCharset(pOS2);
-  pFontDesc->m_iFaceIndex = face->face_index;
-  pFontDesc->m_iGlyphNum = face->num_glyphs;
-}
-
-void CFPF_SkiaFontMgr::OutputSystemFonts() {}