core/src/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 "../../../include/fxge/fx_ge.h"
#include "text_int.h"
static CFX_GEModule* g_pGEModule = NULL;
CFX_GEModule::CFX_GEModule()
{
    m_pFontCache = NULL;
    m_pFontMgr = NULL;
    m_FTLibrary = NULL;
    m_pCodecModule = NULL;
    m_pPlatformData = NULL;
}
CFX_GEModule::~CFX_GEModule()
{
    delete m_pFontCache;
    m_pFontCache = NULL;
    delete m_pFontMgr;
    m_pFontMgr = NULL;
    DestroyPlatform();
}
CFX_GEModule* CFX_GEModule::Get()
{
    return g_pGEModule;
}
void CFX_GEModule::Create()
{
    g_pGEModule = new CFX_GEModule;
    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;
}
void CFX_GEModule::Destroy()
{
    delete g_pGEModule;
    g_pGEModule = NULL;
}
CFX_FontCache* CFX_GEModule::GetFontCache()
{
    if (m_pFontCache == NULL) {
        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++;
    }
}
const uint8_t* CFX_GEModule::GetTextGammaTable()
{
    return m_GammaValue;
}
void CFX_GEModule::SetExtFontMapper(IFX_FontMapper* pFontMapper)
{
    GetFontMgr()->m_pExtMapper = pFontMapper;
    pFontMapper->m_pFontMgr = m_pFontMgr;
}