Merge to XFA: Make CFX_FontMgr member variables private. (try 2)

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1412733011 .

(cherry picked from commit 5a5b6fb3759daf1201ffc9702f626f4b243922d0)

Review URL: https://codereview.chromium.org/1414463006 .

3 files changed, 54 insertions, 92 deletions

diff --git a/core/src/fxge/ge/fx_ge_font.cpp b/core/src/fxge/ge/fx_ge_font.cpp
index 468033eb01..7517cf1bed 100644
--- a/core/src/fxge/ge/fx_ge_font.cpp
+++ b/core/src/fxge/ge/fx_ge_font.cpp
@@ -39,6 +39,10 @@ CFX_UnicodeEncodingEx* _FXFM_CreateFontEncoding(CFX_Font* pFont,
   return new CFX_UnicodeEncodingEx(pFont, nEncodingID);
 }
 
+FXFT_Face FT_LoadFont(const uint8_t* pData, int size) {
+  return CFX_GEModule::Get()->GetFontMgr()->GetFixedFace(pData, size, 0);
+}
+
 }  // namespace
 
 CFX_Font::CFX_Font() {
@@ -181,23 +185,27 @@ FX_BOOL _LoadFile(FXFT_Library library,
   }
   return TRUE;
 }
+
 FX_BOOL CFX_Font::LoadFile(IFX_FileRead* pFile,
                            int nFaceIndex,
                            int* pFaceCount) {
   m_bEmbedded = FALSE;
-  FXFT_Library library;
-  if (CFX_GEModule::Get()->GetFontMgr()->m_FTLibrary == NULL)
-    FXFT_Init_FreeType(&CFX_GEModule::Get()->GetFontMgr()->m_FTLibrary);
-  library = CFX_GEModule::Get()->GetFontMgr()->m_FTLibrary;
-  FXFT_Stream stream = NULL;
+
+  CFX_FontMgr* pFontMgr = CFX_GEModule::Get()->GetFontMgr();
+  pFontMgr->InitFTLibrary();
+  FXFT_Library library = pFontMgr->GetFTLibrary();
+
+  FXFT_Stream stream = nullptr;
   if (!_LoadFile(library, &m_Face, pFile, &stream, nFaceIndex))
     return FALSE;
+
   if (pFaceCount)
     *pFaceCount = (int)m_Face->num_faces;
   m_pOwnedStream = stream;
   FXFT_Set_Pixel_Sizes(m_Face, 0, 64);
   return TRUE;
 }
+
 int CFX_Font::GetGlyphWidth(FX_DWORD glyph_index) {
   if (!m_Face) {
     return 0;
@@ -215,28 +223,12 @@ int CFX_Font::GetGlyphWidth(FX_DWORD glyph_index) {
                         FXFT_Get_Glyph_HoriAdvance(m_Face));
   return width;
 }
-static FXFT_Face FT_LoadFont(uint8_t* pData, int size) {
-  FXFT_Library library;
-  if (CFX_GEModule::Get()->GetFontMgr()->m_FTLibrary == NULL) {
-    FXFT_Init_FreeType(&CFX_GEModule::Get()->GetFontMgr()->m_FTLibrary);
-  }
-  library = CFX_GEModule::Get()->GetFontMgr()->m_FTLibrary;
-  FXFT_Face face = NULL;
-  int error = FXFT_New_Memory_Face(library, pData, size, 0, &face);
-  if (error) {
-    return NULL;
-  }
-  error = FXFT_Set_Pixel_Sizes(face, 64, 64);
-  if (error) {
-    return NULL;
-  }
-  return face;
-}
+
 FX_BOOL CFX_Font::LoadEmbedded(const uint8_t* data, FX_DWORD size) {
   m_pFontDataAllocation = FX_Alloc(uint8_t, size);
   FXSYS_memcpy(m_pFontDataAllocation, data, size);
-  m_Face = FT_LoadFont((uint8_t*)m_pFontDataAllocation, size);
-  m_pFontData = (uint8_t*)m_pFontDataAllocation;
+  m_Face = FT_LoadFont(m_pFontDataAllocation, size);
+  m_pFontData = m_pFontDataAllocation;
   m_bEmbedded = TRUE;
   m_dwSize = size;
   return m_Face != NULL;
diff --git a/core/src/fxge/ge/fx_ge_fontmap.cpp b/core/src/fxge/ge/fx_ge_fontmap.cpp
index 2dfb3c7a17..63cbecd0eb 100644
--- a/core/src/fxge/ge/fx_ge_fontmap.cpp
+++ b/core/src/fxge/ge/fx_ge_fontmap.cpp
@@ -80,31 +80,31 @@ int32_t CTTFontDesc::ReleaseFace(FXFT_Face face) {
   delete this;
   return 0;
 }
+
 CFX_FontMgr::CFX_FontMgr() : m_FTLibrary(nullptr) {
-  m_pBuiltinMapper = new CFX_FontMapper(this);
-  FXSYS_memset(m_ExternalFonts, 0, sizeof m_ExternalFonts);
+  m_pBuiltinMapper.reset(new CFX_FontMapper(this));
 }
+
 CFX_FontMgr::~CFX_FontMgr() {
-  delete m_pBuiltinMapper;
-  FreeCache();
-  if (m_FTLibrary) {
-    FXFT_Done_FreeType(m_FTLibrary);
-  }
+  for (const auto& pair : m_FaceMap)
+    delete pair.second;
+
+  // |m_pBuiltinMapper| references |m_FTLibrary|, so it has to be destroyed
+  // first.
+  m_pBuiltinMapper.reset();
+  FXFT_Done_FreeType(m_FTLibrary);
 }
+
 void CFX_FontMgr::InitFTLibrary() {
-  if (m_FTLibrary == NULL) {
-    FXFT_Init_FreeType(&m_FTLibrary);
-  }
-}
-void CFX_FontMgr::FreeCache() {
-  for (const auto& pair : m_FaceMap) {
-    delete pair.second;
-  }
-  m_FaceMap.clear();
+  if (m_FTLibrary)
+    return;
+  FXFT_Init_FreeType(&m_FTLibrary);
 }
+
 void CFX_FontMgr::SetSystemFontInfo(IFX_SystemFontInfo* pFontInfo) {
   m_pBuiltinMapper->SetSystemFontInfo(pFontInfo);
 }
+
 FXFT_Face CFX_FontMgr::FindSubstFont(const CFX_ByteString& face_name,
                                      FX_BOOL bTrueType,
                                      FX_DWORD flags,
@@ -112,12 +112,11 @@ FXFT_Face CFX_FontMgr::FindSubstFont(const CFX_ByteString& face_name,
                                      int italic_angle,
                                      int CharsetCP,
                                      CFX_SubstFont* pSubstFont) {
-  if (!m_FTLibrary) {
-    FXFT_Init_FreeType(&m_FTLibrary);
-  }
+  InitFTLibrary();
   return m_pBuiltinMapper->FindSubstFont(face_name, bTrueType, flags, weight,
                                          italic_angle, CharsetCP, pSubstFont);
 }
+
 FXFT_Face CFX_FontMgr::GetCachedFace(const CFX_ByteString& face_name,
                                      int weight,
                                      FX_BOOL bItalic,
@@ -144,11 +143,9 @@ FXFT_Face CFX_FontMgr::AddCachedFace(const CFX_ByteString& face_name,
   pFontDesc->m_SingleFace.m_bItalic = bItalic;
   pFontDesc->m_pFontData = pData;
   pFontDesc->m_RefCount = 1;
-  FXFT_Library library;
-  if (m_FTLibrary == NULL) {
-    FXFT_Init_FreeType(&m_FTLibrary);
-  }
-  library = m_FTLibrary;
+
+  InitFTLibrary();
+  FXFT_Library library = m_FTLibrary;
   int ret = FXFT_New_Memory_Face(library, pData, size, face_index,
                                  &pFontDesc->m_SingleFace.m_pFace);
   if (ret) {
@@ -335,42 +332,27 @@ FXFT_Face CFX_FontMgr::AddCachedTTCFace(int ttc_size,
       GetFixedFace(pFontDesc->m_pFontData, ttc_size, face_index);
   return pFontDesc->m_TTCFace.m_pFaces[face_index];
 }
+
 FXFT_Face CFX_FontMgr::GetFixedFace(const uint8_t* pData,
                                     FX_DWORD size,
                                     int face_index) {
-  FXFT_Library library;
-  if (m_FTLibrary == NULL) {
-    FXFT_Init_FreeType(&m_FTLibrary);
-  }
-  library = m_FTLibrary;
-  FXFT_Face face = NULL;
-  int ret = FXFT_New_Memory_Face(library, pData, size, face_index, &face);
-  if (ret) {
-    return NULL;
-  }
-  ret = FXFT_Set_Pixel_Sizes(face, 64, 64);
-  if (ret) {
-    return NULL;
-  }
-  return face;
+  InitFTLibrary();
+  FXFT_Library library = m_FTLibrary;
+  FXFT_Face face = nullptr;
+  if (FXFT_New_Memory_Face(library, pData, size, face_index, &face))
+    return nullptr;
+  return FXFT_Set_Pixel_Sizes(face, 64, 64) ? nullptr : face;
 }
+
 FXFT_Face CFX_FontMgr::GetFileFace(const FX_CHAR* filename, int face_index) {
-  FXFT_Library library;
-  if (m_FTLibrary == NULL) {
-    FXFT_Init_FreeType(&m_FTLibrary);
-  }
-  library = m_FTLibrary;
-  FXFT_Face face = NULL;
-  int ret = FXFT_New_Face(library, filename, face_index, &face);
-  if (ret) {
-    return NULL;
-  }
-  ret = FXFT_Set_Pixel_Sizes(face, 64, 64);
-  if (ret) {
-    return NULL;
-  }
-  return face;
+  InitFTLibrary();
+  FXFT_Library library = m_FTLibrary;
+  FXFT_Face face = nullptr;
+  if (FXFT_New_Face(library, filename, face_index, &face))
+    return nullptr;
+  return FXFT_Set_Pixel_Sizes(face, 64, 64) ? nullptr : face;
 }
+
 void CFX_FontMgr::ReleaseFace(FXFT_Face face) {
   if (!face) {
     return;
@@ -1066,19 +1048,7 @@ FXFT_Face CFX_FontMapper::FindSubstFont(const CFX_ByteString& name,
           iBaseFont += 2;
         }
       }
-      if (m_pFontMgr->m_ExternalFonts[iBaseFont].m_pFontData) {
-        if (m_FoxitFaces[iBaseFont]) {
-          return m_FoxitFaces[iBaseFont];
-        }
-        m_FoxitFaces[iBaseFont] = m_pFontMgr->GetFixedFace(
-            m_pFontMgr->m_ExternalFonts[iBaseFont].m_pFontData,
-            m_pFontMgr->m_ExternalFonts[iBaseFont].m_dwSize, 0);
-        if (m_FoxitFaces[iBaseFont]) {
-          return m_FoxitFaces[iBaseFont];
-        }
-      } else {
-        family = g_Base14FontNames[iBaseFont];
-      }
+      family = g_Base14FontNames[iBaseFont];
       pSubstFont->m_SubstFlags |= FXFONT_SUBST_STANDARD;
     }
   } else {
diff --git a/core/src/fxge/ge/fx_ge_text.cpp b/core/src/fxge/ge/fx_ge_text.cpp
index 1bb7bbeeea..f2ac7129a2 100644
--- a/core/src/fxge/ge/fx_ge_text.cpp
+++ b/core/src/fxge/ge/fx_ge_text.cpp
@@ -1564,7 +1564,7 @@ CFX_GlyphBitmap* CFX_FaceCache::RenderGlyph(CFX_Font* pFont,
     }
     FXFT_Outline_Embolden(FXFT_Get_Glyph_Outline(m_Face), level);
   }
-  FXFT_Library_SetLcdFilter(CFX_GEModule::Get()->GetFontMgr()->m_FTLibrary,
+  FXFT_Library_SetLcdFilter(CFX_GEModule::Get()->GetFontMgr()->GetFTLibrary(),
                             FT_LCD_FILTER_DEFAULT);
   error = FXFT_Render_Glyph(m_Face, anti_alias);
   if (error) {