Another round of fx_ge cleanup.

- Clean up CFX_GEModule.
- Remove duplicate #defines in fx_ge.h
- Remove IsFontStyleFromCharCode() that always returns true.
- Mark a FXTEXT_CHARPOS field as Mac only.

Review-Url: https://codereview.chromium.org/2075333002

5 files changed, 67 insertions, 60 deletions

diff --git a/core/fpdfapi/fpdf_font/cpdf_cidfont.cpp b/core/fpdfapi/fpdf_font/cpdf_cidfont.cpp
index af4121da16..317e6ddb01 100644
--- a/core/fpdfapi/fpdf_font/cpdf_cidfont.cpp
+++ b/core/fpdfapi/fpdf_font/cpdf_cidfont.cpp
@@ -775,34 +775,36 @@ int CPDF_CIDFont::GlyphFromCharCode(uint32_t charcode, FX_BOOL* pVertGlyph) {
   const uint8_t* pdata = m_pStreamAcc->GetData() + byte_pos;
   return pdata[0] * 256 + pdata[1];
 }
+
 uint32_t CPDF_CIDFont::GetNextChar(const FX_CHAR* pString,
                                    int nStrLen,
                                    int& offset) const {
   return m_pCMap->GetNextChar(pString, nStrLen, offset);
 }
+
 int CPDF_CIDFont::GetCharSize(uint32_t charcode) const {
   return m_pCMap->GetCharSize(charcode);
 }
+
 int CPDF_CIDFont::CountChar(const FX_CHAR* pString, int size) const {
   return m_pCMap->CountChar(pString, size);
 }
+
 int CPDF_CIDFont::AppendChar(FX_CHAR* str, uint32_t charcode) const {
   return m_pCMap->AppendChar(str, charcode);
 }
+
 FX_BOOL CPDF_CIDFont::IsUnicodeCompatible() const {
-  if (!m_pCMap->IsLoaded() || !m_pCID2UnicodeMap ||
-      !m_pCID2UnicodeMap->IsLoaded()) {
-    return m_pCMap->m_Coding != CIDCODING_UNKNOWN;
-  }
-  return TRUE;
-}
-FX_BOOL CPDF_CIDFont::IsFontStyleFromCharCode(uint32_t charcode) const {
-  return TRUE;
+  if (m_pCID2UnicodeMap && m_pCID2UnicodeMap->IsLoaded() && m_pCMap->IsLoaded())
+    return TRUE;
+  return m_pCMap->m_Coding != CIDCODING_UNKNOWN;
 }
+
 void CPDF_CIDFont::LoadSubstFont() {
   m_Font.LoadSubst(m_BaseFont, !m_bType1, m_Flags, m_StemV * 5, m_ItalicAngle,
                    g_CharsetCPs[m_Charset], IsVertWriting());
 }
+
 void CPDF_CIDFont::LoadMetricsArray(CPDF_Array* pArray,
                                     CFX_ArrayTemplate<uint32_t>& result,
                                     int nElements) {
diff --git a/core/fpdfapi/fpdf_font/cpdf_cidfont.h b/core/fpdfapi/fpdf_font/cpdf_cidfont.h
index f1c72c65cf..5abb20f7aa 100644
--- a/core/fpdfapi/fpdf_font/cpdf_cidfont.h
+++ b/core/fpdfapi/fpdf_font/cpdf_cidfont.h
@@ -61,7 +61,6 @@ class CPDF_CIDFont : public CPDF_Font {
   const uint8_t* GetCIDTransform(uint16_t CID) const;
   short GetVertWidth(uint16_t CID) const;
   void GetVertOrigin(uint16_t CID, short& vx, short& vy) const;
-  virtual FX_BOOL IsFontStyleFromCharCode(uint32_t charcode) const;
 
  protected:
   int GetGlyphIndex(uint32_t unicodeb, FX_BOOL* pVertGlyph);
diff --git a/core/fpdfapi/fpdf_render/fpdf_render_text.cpp b/core/fpdfapi/fpdf_render/fpdf_render_text.cpp
index 5b0ad96aee..2da51b90d5 100644
--- a/core/fpdfapi/fpdf_render/fpdf_render_text.cpp
+++ b/core/fpdfapi/fpdf_render/fpdf_render_text.cpp
@@ -562,7 +562,7 @@ void CPDF_CharPosList::Load(int nChars,
     FX_BOOL bVert = FALSE;
     FXTEXT_CHARPOS& charpos = m_pCharPos[m_nChars++];
     if (pCIDFont) {
-      charpos.m_bFontStyle = pCIDFont->IsFontStyleFromCharCode(CharCode);
+      charpos.m_bFontStyle = true;
     }
     charpos.m_GlyphIndex = pFont->GlyphFromCharCode(CharCode, &bVert);
 #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
diff --git a/core/fxge/ge/fx_ge.cpp b/core/fxge/ge/fx_ge.cpp
index 360a4eb417..4ebf812f12 100644
--- a/core/fxge/ge/fx_ge.cpp
+++ b/core/fxge/ge/fx_ge.cpp
@@ -9,52 +9,57 @@
 #include "core/fxge/ge/fx_text_int.h"
 
 static CFX_GEModule* g_pGEModule = nullptr;
-CFX_GEModule::CFX_GEModule(const char** pUserFontPaths) {
-  m_pFontCache = nullptr;
-  m_pFontMgr = nullptr;
-  m_FTLibrary = nullptr;
-  m_pCodecModule = nullptr;
-  m_pPlatformData = nullptr;
-  m_pUserFontPaths = pUserFontPaths;
+
+CFX_GEModule::CFX_GEModule(const char** pUserFontPaths,
+                           CCodec_ModuleMgr* pCodecModule)
+    : m_FTLibrary(nullptr),
+      m_pFontCache(nullptr),
+      m_pFontMgr(new CFX_FontMgr),
+      m_pCodecModule(pCodecModule),
+      m_pPlatformData(nullptr),
+      m_pUserFontPaths(pUserFontPaths) {
+  InitPlatform();
+  SetTextGamma(2.2f);
 }
+
 CFX_GEModule::~CFX_GEModule() {
   delete m_pFontCache;
-  m_pFontCache = nullptr;
-  delete m_pFontMgr;
-  m_pFontMgr = nullptr;
   DestroyPlatform();
 }
+
+// static
+void CFX_GEModule::Create(const char** userFontPaths,
+                          CCodec_ModuleMgr* pCodecModule) {
+  ASSERT(!g_pGEModule);
+  g_pGEModule = new CFX_GEModule(userFontPaths, pCodecModule);
+}
+
+// static
 CFX_GEModule* CFX_GEModule::Get() {
   return g_pGEModule;
 }
-void CFX_GEModule::Create(const char** userFontPaths) {
-  g_pGEModule = new CFX_GEModule(userFontPaths);
-  g_pGEModule->m_pFontMgr = new CFX_FontMgr;
-  g_pGEModule->InitPlatform();
-  g_pGEModule->SetTextGamma(2.2f);
-}
-void CFX_GEModule::Use(CFX_GEModule* pModule) {
-  g_pGEModule = pModule;
-}
+
+// static
 void CFX_GEModule::Destroy() {
+  ASSERT(g_pGEModule);
   delete g_pGEModule;
   g_pGEModule = nullptr;
 }
+
 CFX_FontCache* CFX_GEModule::GetFontCache() {
-  if (!m_pFontCache) {
+  if (!m_pFontCache)
     m_pFontCache = new CFX_FontCache();
-  }
   return m_pFontCache;
 }
+
 void CFX_GEModule::SetTextGamma(FX_FLOAT gammaValue) {
   gammaValue /= 2.2f;
-  int i = 0;
-  while (i < 256) {
-    m_GammaValue[i] =
-        (uint8_t)(FXSYS_pow((FX_FLOAT)i / 255, gammaValue) * 255.0f + 0.5f);
-    i++;
+  for (int i = 0; i < 256; ++i) {
+    m_GammaValue[i] = static_cast<uint8_t>(
+        FXSYS_pow(static_cast<FX_FLOAT>(i) / 255, gammaValue) * 255.0f + 0.5f);
   }
 }
-const uint8_t* CFX_GEModule::GetTextGammaTable() {
+
+const uint8_t* CFX_GEModule::GetTextGammaTable() const {
   return m_GammaValue;
 }
diff --git a/core/fxge/include/fx_ge.h b/core/fxge/include/fx_ge.h
index 9114b47008..538afdb581 100644
--- a/core/fxge/include/fx_ge.h
+++ b/core/fxge/include/fx_ge.h
@@ -7,6 +7,8 @@
 #ifndef CORE_FXGE_INCLUDE_FX_GE_H_
 #define CORE_FXGE_INCLUDE_FX_GE_H_
 
+#include <memory>
+
 #include "core/fxge/include/fx_dib.h"
 #include "core/fxge/include/fx_font.h"
 
@@ -16,42 +18,37 @@ class CFX_Font;
 class CFX_FontCache;
 class CFX_FontMgr;
 class CPDF_ShadingPattern;
-class CPSFont;
 class IFX_RenderDeviceDriver;
 class SkPictureRecorder;
 
 class CFX_GEModule {
  public:
-  static void Create(const char** pUserFontPaths);
-  static void Use(CFX_GEModule* pMgr);
+  static void Create(const char** pUserFontPaths,
+                     CCodec_ModuleMgr* pCodecModule);
   static CFX_GEModule* Get();
   static void Destroy();
 
   CFX_FontCache* GetFontCache();
-  CFX_FontMgr* GetFontMgr() { return m_pFontMgr; }
+  CFX_FontMgr* GetFontMgr() { return m_pFontMgr.get(); }
   void SetTextGamma(FX_FLOAT gammaValue);
-  const uint8_t* GetTextGammaTable();
+  const uint8_t* GetTextGammaTable() const;
 
-  void SetCodecModule(CCodec_ModuleMgr* pCodecModule) {
-    m_pCodecModule = pCodecModule;
-  }
   CCodec_ModuleMgr* GetCodecModule() { return m_pCodecModule; }
   void* GetPlatformData() { return m_pPlatformData; }
 
   FXFT_Library m_FTLibrary;
 
- protected:
-  explicit CFX_GEModule(const char** pUserFontPaths);
+ private:
+  CFX_GEModule(const char** pUserFontPaths, CCodec_ModuleMgr* pCodecModule);
   ~CFX_GEModule();
 
   void InitPlatform();
   void DestroyPlatform();
 
- private:
   uint8_t m_GammaValue[256];
   CFX_FontCache* m_pFontCache;
-  CFX_FontMgr* m_pFontMgr;
-  CCodec_ModuleMgr* m_pCodecModule;
+  std::unique_ptr<CFX_FontMgr> m_pFontMgr;
+  CCodec_ModuleMgr* const m_pCodecModule;
   void* m_pPlatformData;
   const char** m_pUserFontPaths;
 };
@@ -62,14 +59,6 @@ struct FX_PATHPOINT {
   int m_Flag;
 };
 
-#define FXPT_CLOSEFIGURE 0x01
-#define FXPT_LINETO 0x02
-#define FXPT_BEZIERTO 0x04
-#define FXPT_MOVETO 0x06
-#define FXPT_TYPE 0x06
-#define FXFILL_ALTERNATE 1
-#define FXFILL_WINDING 2
-
 class CFX_ClipRgn {
  public:
   enum ClipType { RectI, MaskF };
@@ -168,6 +157,13 @@ class CFX_GraphStateData {
 #define FXDC_RENDER_CAPS 7
 #define FXDC_DISPLAY 1
 #define FXDC_PRINTER 2
+
+#define FXPT_CLOSEFIGURE 0x01
+#define FXPT_LINETO 0x02
+#define FXPT_BEZIERTO 0x04
+#define FXPT_MOVETO 0x06
+#define FXPT_TYPE 0x06
+
 #define FXRC_GET_BITS 0x01
 #define FXRC_BIT_MASK 0x02
 #define FXRC_ALPHA_MASK 0x04
@@ -182,6 +178,7 @@ class CFX_GraphStateData {
 #define FXRENDER_IMAGE_LOSSY 0x1000
 #define FXRC_FILLSTROKE_PATH 0x2000
 #define FXRC_SHADING 0x4000
+
 #define FXFILL_ALTERNATE 1
 #define FXFILL_WINDING 2
 #define FXFILL_FULLCOVER 4
@@ -192,6 +189,7 @@ class CFX_GraphStateData {
 #define FX_FILL_TEXT_MODE 128
 #define FX_ZEROAREA_FILL 256
 #define FXFILL_NOPATHSMOOTH 512
+
 #define FXTEXT_CLEARTYPE 0x01
 #define FXTEXT_BGR_STRIPE 0x02
 #define FXTEXT_PRINTGRAPHICTEXT 0x04
@@ -201,12 +199,15 @@ class CFX_GraphStateData {
 
 struct FXTEXT_CHARPOS {
   uint32_t m_GlyphIndex;
-  FX_FLOAT m_OriginX, m_OriginY;
+  FX_FLOAT m_OriginX;
+  FX_FLOAT m_OriginY;
   int m_FontCharWidth;
   FX_BOOL m_bGlyphAdjust;
   FX_FLOAT m_AdjustMatrix[4];
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
   uint32_t m_ExtGID;
-  FX_BOOL m_bFontStyle;
+#endif
+  bool m_bFontStyle;
 };
 
 class CFX_RenderDevice {