Refactor fx_ge part 1

core/fxge/ge/fx_ge.cpp

-// 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/fxge/include/fx_ge.h"
-
-#include "core/fxge/ge/cfx_folderfontinfo.h"
-#include "core/fxge/ge/fx_text_int.h"
-#include "core/fxge/include/cfx_fontmgr.h"
-
-namespace {
-
-CFX_GEModule* g_pGEModule = nullptr;
-
-}  // namespace
-
-CFX_GEModule::CFX_GEModule()
-    : m_FTLibrary(nullptr),
-      m_pFontCache(nullptr),
-      m_pFontMgr(new CFX_FontMgr),
-      m_pCodecModule(nullptr),
-      m_pPlatformData(nullptr),
-      m_pUserFontPaths(nullptr) {}
-
-CFX_GEModule::~CFX_GEModule() {
-  delete m_pFontCache;
-  DestroyPlatform();
-}
-
-// static
-CFX_GEModule* CFX_GEModule::Get() {
-  if (!g_pGEModule)
-    g_pGEModule = new CFX_GEModule();
-  return g_pGEModule;
-}
-
-// static
-void CFX_GEModule::Destroy() {
-  ASSERT(g_pGEModule);
-  delete g_pGEModule;
-  g_pGEModule = nullptr;
-}
-
-void CFX_GEModule::Init(const char** userFontPaths,
-                        CCodec_ModuleMgr* pCodecModule) {
-  ASSERT(g_pGEModule);
-  m_pCodecModule = pCodecModule;
-  m_pUserFontPaths = userFontPaths;
-  InitPlatform();
-  SetTextGamma(2.2f);
-}
-
-CFX_FontCache* CFX_GEModule::GetFontCache() {
-  if (!m_pFontCache)
-    m_pFontCache = new CFX_FontCache();
-  return m_pFontCache;
-}
-
-void CFX_GEModule::SetTextGamma(FX_FLOAT gammaValue) {
-  gammaValue /= 2.2f;
-  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 {
-  return m_GammaValue;
-}