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DocumentServer-v-9.2.0/core/DesktopEditor/fontengine/fontconverter/FontConverter.cpp
Yajbir Singh f1b860b25c
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/*
* (c) Copyright Ascensio System SIA 2010-2023
*
* This program is a free software product. You can redistribute it and/or
* modify it under the terms of the GNU Affero General Public License (AGPL)
* version 3 as published by the Free Software Foundation. In accordance with
* Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
* that Ascensio System SIA expressly excludes the warranty of non-infringement
* of any third-party rights.
*
* This program is distributed WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For
* details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
*
* You can contact Ascensio System SIA at 20A-6 Ernesta Birznieka-Upish
* street, Riga, Latvia, EU, LV-1050.
*
* The interactive user interfaces in modified source and object code versions
* of the Program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU AGPL version 3.
*
* Pursuant to Section 7(b) of the License you must retain the original Product
* logo when distributing the program. Pursuant to Section 7(e) we decline to
* grant you any rights under trademark law for use of our trademarks.
*
* All the Product's GUI elements, including illustrations and icon sets, as
* well as technical writing content are licensed under the terms of the
* Creative Commons Attribution-ShareAlike 4.0 International. See the License
* terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
*
*/
#include "../FontConverter.h"
#include "Consts.h"
#include "Utils.h"
#include FT_XFREE86_H
#include FT_TRUETYPE_TABLES_H
#include "FontFileTrueType.h"
#include "FontFileType1C.h"
#include "FontFileType1.h"
bool CFontConverter::ToOTF(std::wstring sFontIn, std::wstring sFontOut, unsigned int* pSymbols, int nCount, std::wstring sNameW, long nFlag)
{
FT_Library pLibrary = NULL;
if ( FT_Init_FreeType( &pLibrary ) )
return false;
FT_Face pFace = NULL;
NSFile::CFileBinary oFileBinary;
if (!oFileBinary.OpenFile(sFontIn))
return false;
FT_Long nFileSize = (FT_Long)oFileBinary.GetFileSize();
BYTE* pBaseAddress = new BYTE[nFileSize];
DWORD dwRead = 0;
oFileBinary.ReadFile(pBaseAddress, (DWORD)nFileSize, dwRead);
FT_Open_Args oOpenArgs;
oOpenArgs.flags = FT_OPEN_MEMORY;
oOpenArgs.memory_base = (BYTE*)pBaseAddress;
oOpenArgs.memory_size = nFileSize;
NSFontConverter::CFontFileTrueType* pTTF = NSFontConverter::CFontFileTrueType::LoadFromFile( sFontIn.c_str() );
FT_Error oerrr;
if ( oerrr = FT_Open_Face( pLibrary, &oOpenArgs, 0, &pFace ) )
{
FT_Done_FreeType( pLibrary );
RELEASEARRAYOBJECTS(pBaseAddress);
return false;
}
std::string sFontFormat( FT_Get_X11_Font_Format( pFace ) );
// Проверим флаг конвертации и исходный формат шрифта
bool bNeedConvert = false;
if ( nFlag == NSFontConverter::c_lFromAll ||
( "TrueType" == sFontFormat && nFlag & NSFontConverter::c_lFromTT ) ||
( "CFF" == sFontFormat && nFlag & NSFontConverter::c_lFromCFF ) ||
( "Type 1" == sFontFormat && nFlag & NSFontConverter::c_lFromT1 ) )
bNeedConvert = true;
bool bIsGids = (NSFontConverter::c_lFlagsGids & nFlag);
if ( bNeedConvert )
{
if ( "CFF" == sFontFormat || "Type 1" == sFontFormat )
{
NSFontConverter::TCharBuffer oCFF;
NSFontConverter::CFontFileType1C *pT1C = NULL;
if ( "Type 1" == sFontFormat )
{
// Сначала сконвертируем Type1 в CFF
NSFontConverter::CFontFileType1* pT1 = NSFontConverter::CFontFileType1::LoadFromFile( sFontIn.c_str() );
pT1->ToCFF( &NSFontConverter::CharBufferWrite, &oCFF );
delete pT1;
// Конвертируем CFF в OpenTypeCFF
pT1C = NSFontConverter::CFontFileType1C::LoadFromBuffer( oCFF.sBuffer, oCFF.nLen );
}
else
{
// FreeType отдает тип шрифта CFF, в случаях когда файл имеет тип OpenType(CFF).
// Если так оно и есть, тогда нам с файлом ничего делать на надо.
pT1C = NSFontConverter::CFontFileType1C::LoadFromFile( sFontIn.c_str() );
}
if ( pT1C )
{
NSFile::CFileBinary oWriteFile;
oWriteFile.CreateFileW(sFontOut);
pT1C->ToOpenTypeCFF( &NSFontConverter::FileWrite, oWriteFile.GetFileNative(), pFace );
oWriteFile.CloseFile();
}
delete pT1C;
}
else if ( "TrueType" == sFontFormat && ( pSymbols != NULL || !sNameW.empty() ) )
{
NSFontConverter::CFontFileTrueType* pTTF = NSFontConverter::CFontFileTrueType::LoadFromFile( sFontIn.c_str() );
if ( pTTF )
{
std::string sName = U_TO_UTF8(sNameW);
unsigned char *pUseGlyfs = NULL;
long lGlyfsCount = pFace->num_glyphs;
if ( pSymbols )
{
// Сначала составим список нужных нами GID
unsigned int* pUnicode = pSymbols;
unsigned short* pGIDs = new unsigned short[nCount];
int nCMapIndex = 0;
int nSymbolicIndex = NSFontConverter::GetSymbolicCmapIndex(pFace);
if (!bIsGids)
{
for ( int nIndex = 0; nIndex < nCount; nIndex++ )
{
pGIDs[nIndex] = NSFontConverter::SetCMapForCharCode( pFace, pUnicode[nIndex], &nCMapIndex );
if ((pGIDs[nIndex] == 0) && (-1 != nSymbolicIndex) && (pUnicode[nIndex] < 0xF000))
{
pGIDs[nIndex] = NSFontConverter::SetCMapForCharCode( pFace, pUnicode[nIndex] + 0xF000, &nCMapIndex );
}
}
}
else
{
for (int i = 0; i < nCount; ++i)
pGIDs[i] = (unsigned short)pUnicode[i];
}
pUseGlyfs = new unsigned char[lGlyfsCount];
::memset( pUseGlyfs, 0x00, lGlyfsCount * sizeof(unsigned char) );
pUseGlyfs[0] = 1; // нулевой гид всегда записываем
for ( int nGID = 1; nGID < lGlyfsCount; nGID++ )
{
if ( 1 != pUseGlyfs[nGID] )
{
bool bFound = false;
for ( int nIndex = 0; nIndex < nCount; nIndex++ )
{
if ( nGID == pGIDs[nIndex] )
{
bFound = true;
break;
}
}
// Если данный символ составной (CompositeGlyf), тогда мы должны учесть все его дочерные символы (subglyfs)
if ( bFound && 0 == FT_Load_Glyph( pFace, nGID, FT_LOAD_NO_SCALE | FT_LOAD_NO_RECURSE ) )
{
for ( int nSubIndex = 0; nSubIndex < pFace->glyph->num_subglyphs; nSubIndex++ )
{
FT_Int nSubGID;
FT_UInt unFlags;
FT_Int nArg1;
FT_Int nArg2;
FT_Matrix oMatrix;
FT_Get_SubGlyph_Info( pFace->glyph, nSubIndex, &nSubGID, &unFlags, &nArg1, &nArg2, &oMatrix );
if ( nSubGID < lGlyfsCount )
pUseGlyfs[nSubGID] = 1;
}
}
if ( bFound )
pUseGlyfs[nGID] = 1;
}
}
}
NSFile::CFileBinary oWriteFile;
oWriteFile.CreateFileW(sFontOut);
pTTF->WriteTTF( &NSFontConverter::FileWrite, oWriteFile.GetFileNative(), sName.c_str(), NULL, pUseGlyfs, lGlyfsCount );
oWriteFile.CloseFile();
}
else
{
// error parse font
// Просто копируем файл
NSFile::CFileBinary::Copy(sFontIn, sFontOut);
}
}
}
else
{
// Просто копируем файл
NSFile::CFileBinary::Copy(sFontIn, sFontOut);
}
FT_Done_Face( pFace );
FT_Done_FreeType( pLibrary );
RELEASEARRAYOBJECTS(pBaseAddress);
return true;
}
bool CFontConverter::ToOTF2(std::wstring sFontIn, unsigned int* pSymbols, int nCount, std::wstring sNameW, long nFlag, long lFaceIndex, unsigned char*& pDstData, int& nDstLen)
{
// функция просто скопирована и немного доработана. это все из-за нехватки времени.
FT_Library pLibrary = NULL;
if ( FT_Init_FreeType( &pLibrary ) )
return false;
FT_Face pFace = NULL;
NSFile::CFileBinary oFileBinary;
if (!oFileBinary.OpenFile(sFontIn))
return false;
FT_Long nFileSize = (FT_Long)oFileBinary.GetFileSize();
BYTE* pBaseAddress = new BYTE[nFileSize];
DWORD dwRead = 0;
oFileBinary.ReadFile(pBaseAddress, (DWORD)nFileSize, dwRead);
FT_Open_Args oOpenArgs;
oOpenArgs.flags = FT_OPEN_MEMORY;
oOpenArgs.memory_base = (BYTE*)pBaseAddress;
oOpenArgs.memory_size = (FT_Long)nFileSize;
NSFontConverter::CFontFileTrueType* pTTF = NSFontConverter::CFontFileTrueType::LoadFromFile( sFontIn.c_str() );
FT_Error oerrr;
if ( oerrr = FT_Open_Face( pLibrary, &oOpenArgs, lFaceIndex, &pFace ) )
{
FT_Done_FreeType( pLibrary );
RELEASEARRAYOBJECTS(pBaseAddress);
return false;
}
std::string sFontFormat( FT_Get_X11_Font_Format( pFace ) );
// Проверим флаг конвертации и исходный формат шрифта
bool bNeedConvert = false;
if ( nFlag == NSFontConverter::c_lFromAll ||
( "TrueType" == sFontFormat && nFlag & NSFontConverter::c_lFromTT ) ||
( "CFF" == sFontFormat && nFlag & NSFontConverter::c_lFromCFF ) ||
( "Type 1" == sFontFormat && nFlag & NSFontConverter::c_lFromT1 ) )
bNeedConvert = true;
bool bIsGids = (NSFontConverter::c_lFlagsGids & nFlag);
NSFontConverter::TCharBuffer* pCharBuffer = NULL;
if ( bNeedConvert )
{
pCharBuffer = new NSFontConverter::TCharBuffer(100000); // ~100Kb
if ( "CFF" == sFontFormat || "Type 1" == sFontFormat )
{
NSFontConverter::TCharBuffer oCFF;
NSFontConverter::CFontFileType1C *pT1C = NULL;
if ( "Type 1" == sFontFormat )
{
// Сначала сконвертируем Type1 в CFF
NSFontConverter::CFontFileType1* pT1 = NSFontConverter::CFontFileType1::LoadFromFile( sFontIn.c_str() );
pT1->ToCFF( &NSFontConverter::CharBufferWrite, &oCFF );
delete pT1;
// Конвертируем CFF в OpenTypeCFF
pT1C = NSFontConverter::CFontFileType1C::LoadFromBuffer( oCFF.sBuffer, oCFF.nLen );
}
else
{
// FreeType отдает тип шрифта CFF, в случаях когда файл имеет тип OpenType(CFF).
// Если так оно и есть, тогда нам с файлом ничего делать на надо.
pT1C = NSFontConverter::CFontFileType1C::LoadFromFile( sFontIn.c_str() );
}
if ( pT1C )
{
pT1C->ToOpenTypeCFF( &NSFontConverter::CharBufferWrite, pCharBuffer, pFace );
}
delete pT1C;
}
else if ( "TrueType" == sFontFormat && ( pSymbols != NULL || !sNameW.empty() ) )
{
NSFontConverter::CFontFileTrueType* pTTF = NSFontConverter::CFontFileTrueType::LoadFromFile( sFontIn.c_str() );
if ( pTTF )
{
std::string sName = U_TO_UTF8(sNameW);
unsigned char *pUseGlyfs = NULL;
long lGlyfsCount = pFace->num_glyphs;
if ( pSymbols )
{
// Сначала составим список нужных нами GID
unsigned int* pUnicode = (unsigned int*)pSymbols;
unsigned short* pGIDs = new unsigned short[nCount];
int nCMapIndex = 0;
int nSymbolicIndex = NSFontConverter::GetSymbolicCmapIndex(pFace);
if (!bIsGids)
{
for ( int nIndex = 0; nIndex < nCount; nIndex++ )
{
pGIDs[nIndex] = NSFontConverter::SetCMapForCharCode( pFace, pUnicode[nIndex], &nCMapIndex );
if ((pGIDs[nIndex] == 0) && (-1 != nSymbolicIndex) && (pUnicode[nIndex] < 0xF000))
{
pGIDs[nIndex] = NSFontConverter::SetCMapForCharCode( pFace, pUnicode[nIndex] + 0xF000, &nCMapIndex );
}
}
}
else
{
for (int i = 0; i < nCount; ++i)
pGIDs[i] = (unsigned short)pUnicode[i];
}
pUseGlyfs = new unsigned char[lGlyfsCount];
::memset( pUseGlyfs, 0x00, lGlyfsCount * sizeof(unsigned char) );
pUseGlyfs[0] = 1; // нулевой гид всегда записываем
for ( int nGID = 1; nGID < lGlyfsCount; nGID++ )
{
if ( 1 != pUseGlyfs[nGID] )
{
bool bFound = false;
for ( int nIndex = 0; nIndex < nCount; nIndex++ )
{
if ( nGID == pGIDs[nIndex] )
{
bFound = true;
break;
}
}
// Если данный символ составной (CompositeGlyf), тогда мы должны учесть все его дочерные символы (subglyfs)
if ( bFound && 0 == FT_Load_Glyph( pFace, nGID, FT_LOAD_NO_SCALE | FT_LOAD_NO_RECURSE ) )
{
for ( int nSubIndex = 0; nSubIndex < pFace->glyph->num_subglyphs; nSubIndex++ )
{
FT_Int nSubGID;
FT_UInt unFlags;
FT_Int nArg1;
FT_Int nArg2;
FT_Matrix oMatrix;
FT_Get_SubGlyph_Info( pFace->glyph, nSubIndex, &nSubGID, &unFlags, &nArg1, &nArg2, &oMatrix );
if ( nSubGID < lGlyfsCount )
pUseGlyfs[nSubGID] = 1;
}
}
if ( bFound )
pUseGlyfs[nGID] = 1;
}
}
}
pTTF->WriteTTF( &NSFontConverter::CharBufferWrite, pCharBuffer, sName.c_str(), NULL, pUseGlyfs, lGlyfsCount );
}
}
LONG nSizeFont = pCharBuffer->nLen;
nDstLen = (int)nSizeFont;
pDstData = new BYTE[nDstLen];
memcpy(pDstData, pCharBuffer->sBuffer, nDstLen);
RELEASEOBJECT(pCharBuffer);
}
else
{
nDstLen = (int)nFileSize;
pDstData = new BYTE[nDstLen];
memcpy(pDstData, pBaseAddress, nDstLen);
}
FT_Done_Face( pFace );
FT_Done_FreeType( pLibrary );
RELEASEARRAYOBJECTS(pBaseAddress);
return true;
}