diff options
Diffstat (limited to 'core/fpdfapi/font')
25 files changed, 750 insertions, 597 deletions
diff --git a/core/fpdfapi/font/ttgsubtable.cpp b/core/fpdfapi/font/cfx_cttgsubtable.cpp index b8d6946657..902957a436 100644 --- a/core/fpdfapi/font/ttgsubtable.cpp +++ b/core/fpdfapi/font/cfx_cttgsubtable.cpp @@ -4,7 +4,7 @@ // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com -#include "core/fpdfapi/font/ttgsubtable.h" +#include "core/fpdfapi/font/cfx_cttgsubtable.h" #include <utility> diff --git a/core/fpdfapi/font/ttgsubtable.h b/core/fpdfapi/font/cfx_cttgsubtable.h index c3bff43957..aac3f86c07 100644 --- a/core/fpdfapi/font/ttgsubtable.h +++ b/core/fpdfapi/font/cfx_cttgsubtable.h @@ -4,8 +4,8 @@ // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com -#ifndef CORE_FPDFAPI_FONT_TTGSUBTABLE_H_ -#define CORE_FPDFAPI_FONT_TTGSUBTABLE_H_ +#ifndef CORE_FPDFAPI_FONT_CFX_CTTGSUBTABLE_H_ +#define CORE_FPDFAPI_FONT_CFX_CTTGSUBTABLE_H_ #include <stdint.h> @@ -295,4 +295,4 @@ class CFX_CTTGSUBTable { TLookupList LookupList; }; -#endif // CORE_FPDFAPI_FONT_TTGSUBTABLE_H_ +#endif // CORE_FPDFAPI_FONT_CFX_CTTGSUBTABLE_H_ diff --git a/core/fpdfapi/font/cfx_stockfontarray.cpp b/core/fpdfapi/font/cfx_stockfontarray.cpp new file mode 100644 index 0000000000..0808471c82 --- /dev/null +++ b/core/fpdfapi/font/cfx_stockfontarray.cpp @@ -0,0 +1,35 @@ +// Copyright 2017 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/fpdfapi/font/cfx_stockfontarray.h" + +#include <memory> +#include <utility> + +#include "core/fxcrt/fx_memory.h" + +CFX_StockFontArray::CFX_StockFontArray() {} + +CFX_StockFontArray::~CFX_StockFontArray() { + for (size_t i = 0; i < FX_ArraySize(m_StockFonts); ++i) { + if (m_StockFonts[i]) + delete m_StockFonts[i]->GetFontDict(); + } +} + +CPDF_Font* CFX_StockFontArray::GetFont(uint32_t index) const { + if (index >= FX_ArraySize(m_StockFonts)) + return nullptr; + return m_StockFonts[index].get(); +} + +CPDF_Font* CFX_StockFontArray::SetFont(uint32_t index, + std::unique_ptr<CPDF_Font> pFont) { + CPDF_Font* result = pFont.get(); + if (index < FX_ArraySize(m_StockFonts)) + m_StockFonts[index] = std::move(pFont); + return result; +} diff --git a/core/fpdfapi/font/cfx_stockfontarray.h b/core/fpdfapi/font/cfx_stockfontarray.h new file mode 100644 index 0000000000..50a13c167f --- /dev/null +++ b/core/fpdfapi/font/cfx_stockfontarray.h @@ -0,0 +1,27 @@ +// Copyright 2017 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 + +#ifndef CORE_FPDFAPI_FONT_CFX_STOCKFONTARRAY_H_ +#define CORE_FPDFAPI_FONT_CFX_STOCKFONTARRAY_H_ + +#include <memory> + +#include "core/fpdfapi/font/cpdf_font.h" + +class CFX_StockFontArray { + public: + CFX_StockFontArray(); + ~CFX_StockFontArray(); + + // Takes ownership of |pFont|, returns unowned pointer to it. + CPDF_Font* SetFont(uint32_t index, std::unique_ptr<CPDF_Font> pFont); + CPDF_Font* GetFont(uint32_t index) const; + + private: + std::unique_ptr<CPDF_Font> m_StockFonts[14]; +}; + +#endif // CORE_FPDFAPI_FONT_CFX_STOCKFONTARRAY_H_ diff --git a/core/fpdfapi/font/cpdf_cid2unicodemap.cpp b/core/fpdfapi/font/cpdf_cid2unicodemap.cpp new file mode 100644 index 0000000000..cb378aa9d6 --- /dev/null +++ b/core/fpdfapi/font/cpdf_cid2unicodemap.cpp @@ -0,0 +1,42 @@ +// Copyright 2017 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/fpdfapi/font/cpdf_cid2unicodemap.h" + +#include "core/fpdfapi/cpdf_modulemgr.h" +#include "core/fpdfapi/font/cpdf_cmapmanager.h" +#include "core/fpdfapi/page/cpdf_pagemodule.h" + +CPDF_CID2UnicodeMap::CPDF_CID2UnicodeMap() { + m_EmbeddedCount = 0; +} + +CPDF_CID2UnicodeMap::~CPDF_CID2UnicodeMap() {} + +bool CPDF_CID2UnicodeMap::IsLoaded() { + return m_EmbeddedCount != 0; +} + +wchar_t CPDF_CID2UnicodeMap::UnicodeFromCID(uint16_t CID) { + if (m_Charset == CIDSET_UNICODE) { + return CID; + } + if (CID < m_EmbeddedCount) { + return m_pEmbeddedMap[CID]; + } + return 0; +} + +void CPDF_CID2UnicodeMap::Load(CPDF_CMapManager* pMgr, + CIDSet charset, + bool bPromptCJK) { + m_Charset = charset; + + CPDF_FontGlobals* pFontGlobals = + CPDF_ModuleMgr::Get()->GetPageModule()->GetFontGlobals(); + m_pEmbeddedMap = pFontGlobals->m_EmbeddedToUnicodes[charset].m_pMap; + m_EmbeddedCount = pFontGlobals->m_EmbeddedToUnicodes[charset].m_Count; +} diff --git a/core/fpdfapi/font/cpdf_cid2unicodemap.h b/core/fpdfapi/font/cpdf_cid2unicodemap.h new file mode 100644 index 0000000000..2c3fe5b7aa --- /dev/null +++ b/core/fpdfapi/font/cpdf_cid2unicodemap.h @@ -0,0 +1,29 @@ +// Copyright 2017 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 + +#ifndef CORE_FPDFAPI_FONT_CPDF_CID2UNICODEMAP_H_ +#define CORE_FPDFAPI_FONT_CPDF_CID2UNICODEMAP_H_ + +#include "core/fpdfapi/font/cpdf_cidfont.h" + +class CPDF_CMapManager; + +class CPDF_CID2UnicodeMap { + public: + CPDF_CID2UnicodeMap(); + ~CPDF_CID2UnicodeMap(); + + bool IsLoaded(); + void Load(CPDF_CMapManager* pMgr, CIDSet charset, bool bPromptCJK); + wchar_t UnicodeFromCID(uint16_t CID); + + private: + CIDSet m_Charset; + const uint16_t* m_pEmbeddedMap; + uint32_t m_EmbeddedCount; +}; + +#endif // CORE_FPDFAPI_FONT_CPDF_CID2UNICODEMAP_H_ diff --git a/core/fpdfapi/font/cpdf_cidfont.cpp b/core/fpdfapi/font/cpdf_cidfont.cpp index c41f8046f7..8cb59de739 100644 --- a/core/fpdfapi/font/cpdf_cidfont.cpp +++ b/core/fpdfapi/font/cpdf_cidfont.cpp @@ -12,9 +12,11 @@ #include "core/fpdfapi/cmaps/cmap_int.h" #include "core/fpdfapi/cpdf_modulemgr.h" +#include "core/fpdfapi/font/cfx_cttgsubtable.h" +#include "core/fpdfapi/font/cpdf_cid2unicodemap.h" +#include "core/fpdfapi/font/cpdf_cmap.h" +#include "core/fpdfapi/font/cpdf_cmapparser.h" #include "core/fpdfapi/font/cpdf_fontencoding.h" -#include "core/fpdfapi/font/font_int.h" -#include "core/fpdfapi/font/ttgsubtable.h" #include "core/fpdfapi/page/cpdf_pagemodule.h" #include "core/fpdfapi/parser/cpdf_array.h" #include "core/fpdfapi/parser/cpdf_dictionary.h" @@ -377,8 +379,8 @@ bool CPDF_CIDFont::Load() { if (m_Charset == CIDSET_UNKNOWN) { CPDF_Dictionary* pCIDInfo = pCIDFontDict->GetDictFor("CIDSystemInfo"); if (pCIDInfo) { - m_Charset = - CharsetFromOrdering(pCIDInfo->GetStringFor("Ordering").AsStringC()); + m_Charset = CPDF_CMapParser::CharsetFromOrdering( + pCIDInfo->GetStringFor("Ordering").AsStringC()); } } if (m_Charset != CIDSET_UNKNOWN) { diff --git a/core/fpdfapi/font/fpdf_font_cid.cpp b/core/fpdfapi/font/cpdf_cmap.cpp index dd37551b2d..55f5ccc5c5 100644 --- a/core/fpdfapi/font/fpdf_font_cid.cpp +++ b/core/fpdfapi/font/cpdf_cmap.cpp @@ -1,31 +1,22 @@ -// Copyright 2014 PDFium Authors. All rights reserved. +// Copyright 2017 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/fpdfapi/font/font_int.h" +#include "core/fpdfapi/font/cpdf_cmap.h" #include <memory> #include <utility> #include <vector> #include "core/fpdfapi/cmaps/cmap_int.h" -#include "core/fpdfapi/cpdf_modulemgr.h" -#include "core/fpdfapi/font/ttgsubtable.h" -#include "core/fpdfapi/page/cpdf_pagemodule.h" -#include "core/fpdfapi/parser/cpdf_array.h" -#include "core/fpdfapi/parser/cpdf_dictionary.h" +#include "core/fpdfapi/font/cpdf_cmapmanager.h" +#include "core/fpdfapi/font/cpdf_cmapparser.h" #include "core/fpdfapi/parser/cpdf_simple_parser.h" -#include "core/fxcrt/fx_extension.h" -#include "core/fxge/fx_freetype.h" -#include "third_party/base/logging.h" -#include "third_party/base/stl_util.h" namespace { -const char* const g_CharsetNames[CIDSET_NUM_SETS] = {nullptr, "GB1", "CNS1", - "Japan1", "Korea1", "UCS"}; struct ByteRange { uint8_t m_First; uint8_t m_Last; // Inclusive. @@ -190,20 +181,6 @@ const PredefinedCMap g_PredefinedCMaps[] = { {"UniKS-UTF16", CIDSET_KOREA1, CIDCODING_UTF16, CPDF_CMap::TwoBytes, 0, {}}, }; -CIDSet CIDSetFromSizeT(size_t index) { - if (index >= CIDSET_NUM_SETS) { - NOTREACHED(); - return CIDSET_UNKNOWN; - } - return static_cast<CIDSet>(index); -} - -CFX_ByteStringC CMap_GetString(const CFX_ByteStringC& word) { - if (word.GetLength() <= 2) - return CFX_ByteStringC(); - return CFX_ByteStringC(&word[1], word.GetLength() - 2); -} - int CheckFourByteCodeRange(uint8_t* codes, int size, const std::vector<CPDF_CMap::CodeRange>& ranges) { @@ -268,206 +245,6 @@ int GetFourByteCharSizeImpl(uint32_t charcode, } // namespace -CPDF_CMapManager::CPDF_CMapManager() {} - -CPDF_CMapManager::~CPDF_CMapManager() {} - -CFX_RetainPtr<CPDF_CMap> CPDF_CMapManager::GetPredefinedCMap( - const CFX_ByteString& name, - bool bPromptCJK) { - auto it = m_CMaps.find(name); - if (it != m_CMaps.end()) - return it->second; - - CFX_RetainPtr<CPDF_CMap> pCMap = LoadPredefinedCMap(name, bPromptCJK); - if (!name.IsEmpty()) - m_CMaps[name] = pCMap; - - return pCMap; -} - -CFX_RetainPtr<CPDF_CMap> CPDF_CMapManager::LoadPredefinedCMap( - const CFX_ByteString& name, - bool bPromptCJK) { - const char* pname = name.c_str(); - if (*pname == '/') - pname++; - - auto pCMap = pdfium::MakeRetain<CPDF_CMap>(); - pCMap->LoadPredefined(this, pname, bPromptCJK); - return pCMap; -} - -CPDF_CID2UnicodeMap* CPDF_CMapManager::GetCID2UnicodeMap(CIDSet charset, - bool bPromptCJK) { - if (!m_CID2UnicodeMaps[charset]) - m_CID2UnicodeMaps[charset] = LoadCID2UnicodeMap(charset, bPromptCJK); - - return m_CID2UnicodeMaps[charset].get(); -} - -std::unique_ptr<CPDF_CID2UnicodeMap> CPDF_CMapManager::LoadCID2UnicodeMap( - CIDSet charset, - bool bPromptCJK) { - auto pMap = pdfium::MakeUnique<CPDF_CID2UnicodeMap>(); - pMap->Load(this, charset, bPromptCJK); - return pMap; -} - -CPDF_CMapParser::CPDF_CMapParser(CPDF_CMap* pCMap) - : m_pCMap(pCMap), m_Status(0), m_CodeSeq(0) {} - -CPDF_CMapParser::~CPDF_CMapParser() {} - -void CPDF_CMapParser::ParseWord(const CFX_ByteStringC& word) { - if (word.IsEmpty()) { - return; - } - if (word == "begincidchar") { - m_Status = 1; - m_CodeSeq = 0; - } else if (word == "begincidrange") { - m_Status = 2; - m_CodeSeq = 0; - } else if (word == "endcidrange" || word == "endcidchar") { - m_Status = 0; - } else if (word == "/WMode") { - m_Status = 6; - } else if (word == "/Registry") { - m_Status = 3; - } else if (word == "/Ordering") { - m_Status = 4; - } else if (word == "/Supplement") { - m_Status = 5; - } else if (word == "begincodespacerange") { - m_Status = 7; - m_CodeSeq = 0; - } else if (word == "usecmap") { - } else if (m_Status == 1 || m_Status == 2) { - m_CodePoints[m_CodeSeq] = CMap_GetCode(word); - m_CodeSeq++; - uint32_t StartCode, EndCode; - uint16_t StartCID; - if (m_Status == 1) { - if (m_CodeSeq < 2) { - return; - } - EndCode = StartCode = m_CodePoints[0]; - StartCID = (uint16_t)m_CodePoints[1]; - } else { - if (m_CodeSeq < 3) { - return; - } - StartCode = m_CodePoints[0]; - EndCode = m_CodePoints[1]; - StartCID = (uint16_t)m_CodePoints[2]; - } - if (EndCode < 0x10000) { - for (uint32_t code = StartCode; code <= EndCode; code++) { - m_pCMap->m_DirectCharcodeToCIDTable[code] = - static_cast<uint16_t>(StartCID + code - StartCode); - } - } else { - m_AdditionalCharcodeToCIDMappings.push_back( - {StartCode, EndCode, StartCID}); - } - m_CodeSeq = 0; - } else if (m_Status == 3) { - m_Status = 0; - } else if (m_Status == 4) { - m_pCMap->m_Charset = CharsetFromOrdering(CMap_GetString(word)); - m_Status = 0; - } else if (m_Status == 5) { - m_Status = 0; - } else if (m_Status == 6) { - m_pCMap->m_bVertical = CMap_GetCode(word) != 0; - m_Status = 0; - } else if (m_Status == 7) { - if (word == "endcodespacerange") { - uint32_t nSegs = pdfium::CollectionSize<uint32_t>(m_CodeRanges); - if (nSegs > 1) { - m_pCMap->m_CodingScheme = CPDF_CMap::MixedFourBytes; - m_pCMap->m_MixedFourByteLeadingRanges = m_CodeRanges; - } else if (nSegs == 1) { - m_pCMap->m_CodingScheme = (m_CodeRanges[0].m_CharSize == 2) - ? CPDF_CMap::TwoBytes - : CPDF_CMap::OneByte; - } - m_Status = 0; - } else { - if (word.GetLength() == 0 || word.GetAt(0) != '<') { - return; - } - if (m_CodeSeq % 2) { - CPDF_CMap::CodeRange range; - if (CMap_GetCodeRange(range, m_LastWord.AsStringC(), word)) - m_CodeRanges.push_back(range); - } - m_CodeSeq++; - } - } - m_LastWord = word; -} - -// Static. -uint32_t CPDF_CMapParser::CMap_GetCode(const CFX_ByteStringC& word) { - pdfium::base::CheckedNumeric<uint32_t> num = 0; - if (word.GetAt(0) == '<') { - for (int i = 1; i < word.GetLength() && std::isxdigit(word.GetAt(i)); ++i) { - num = num * 16 + FXSYS_HexCharToInt(word.GetAt(i)); - if (!num.IsValid()) - return 0; - } - return num.ValueOrDie(); - } - - for (int i = 0; i < word.GetLength() && std::isdigit(word.GetAt(i)); ++i) { - num = - num * 10 + FXSYS_DecimalCharToInt(static_cast<wchar_t>(word.GetAt(i))); - if (!num.IsValid()) - return 0; - } - return num.ValueOrDie(); -} - -// Static. -bool CPDF_CMapParser::CMap_GetCodeRange(CPDF_CMap::CodeRange& range, - const CFX_ByteStringC& first, - const CFX_ByteStringC& second) { - if (first.GetLength() == 0 || first.GetAt(0) != '<') - return false; - - int i; - for (i = 1; i < first.GetLength(); ++i) { - if (first.GetAt(i) == '>') { - break; - } - } - range.m_CharSize = (i - 1) / 2; - if (range.m_CharSize > 4) - return false; - - for (i = 0; i < range.m_CharSize; ++i) { - uint8_t digit1 = first.GetAt(i * 2 + 1); - uint8_t digit2 = first.GetAt(i * 2 + 2); - range.m_Lower[i] = - FXSYS_HexCharToInt(digit1) * 16 + FXSYS_HexCharToInt(digit2); - } - - uint32_t size = second.GetLength(); - for (i = 0; i < range.m_CharSize; ++i) { - uint8_t digit1 = ((uint32_t)i * 2 + 1 < size) - ? second.GetAt((FX_STRSIZE)i * 2 + 1) - : '0'; - uint8_t digit2 = ((uint32_t)i * 2 + 2 < size) - ? second.GetAt((FX_STRSIZE)i * 2 + 2) - : '0'; - range.m_Upper[i] = - FXSYS_HexCharToInt(digit1) * 16 + FXSYS_HexCharToInt(digit2); - } - return true; -} - CPDF_CMap::CPDF_CMap() : m_bLoaded(false), m_bVertical(false), @@ -709,42 +486,3 @@ int CPDF_CMap::AppendChar(char* str, uint32_t charcode) const { } return 0; } - -CPDF_CID2UnicodeMap::CPDF_CID2UnicodeMap() { - m_EmbeddedCount = 0; -} - -CPDF_CID2UnicodeMap::~CPDF_CID2UnicodeMap() {} - -bool CPDF_CID2UnicodeMap::IsLoaded() { - return m_EmbeddedCount != 0; -} - -wchar_t CPDF_CID2UnicodeMap::UnicodeFromCID(uint16_t CID) { - if (m_Charset == CIDSET_UNICODE) { - return CID; - } - if (CID < m_EmbeddedCount) { - return m_pEmbeddedMap[CID]; - } - return 0; -} - -void CPDF_CID2UnicodeMap::Load(CPDF_CMapManager* pMgr, - CIDSet charset, - bool bPromptCJK) { - m_Charset = charset; - - CPDF_FontGlobals* pFontGlobals = - CPDF_ModuleMgr::Get()->GetPageModule()->GetFontGlobals(); - m_pEmbeddedMap = pFontGlobals->m_EmbeddedToUnicodes[charset].m_pMap; - m_EmbeddedCount = pFontGlobals->m_EmbeddedToUnicodes[charset].m_Count; -} - -CIDSet CharsetFromOrdering(const CFX_ByteStringC& ordering) { - for (size_t charset = 1; charset < FX_ArraySize(g_CharsetNames); ++charset) { - if (ordering == g_CharsetNames[charset]) - return CIDSetFromSizeT(charset); - } - return CIDSET_UNKNOWN; -} diff --git a/core/fpdfapi/font/cpdf_cmap.h b/core/fpdfapi/font/cpdf_cmap.h new file mode 100644 index 0000000000..ab495efbfc --- /dev/null +++ b/core/fpdfapi/font/cpdf_cmap.h @@ -0,0 +1,87 @@ +// Copyright 2017 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 + +#ifndef CORE_FPDFAPI_FONT_CPDF_CMAP_H_ +#define CORE_FPDFAPI_FONT_CPDF_CMAP_H_ + +#include <vector> + +#include "core/fpdfapi/font/cpdf_cidfont.h" +#include "core/fxcrt/cfx_retain_ptr.h" +#include "core/fxcrt/fx_basic.h" + +class CPDF_CMapManager; +struct FXCMAP_CMap; + +enum CIDCoding : uint8_t { + CIDCODING_UNKNOWN = 0, + CIDCODING_GB, + CIDCODING_BIG5, + CIDCODING_JIS, + CIDCODING_KOREA, + CIDCODING_UCS2, + CIDCODING_CID, + CIDCODING_UTF16, +}; + +class CPDF_CMap : public CFX_Retainable { + public: + enum CodingScheme : uint8_t { + OneByte, + TwoBytes, + MixedTwoBytes, + MixedFourBytes + }; + + struct CodeRange { + int m_CharSize; + uint8_t m_Lower[4]; + uint8_t m_Upper[4]; + }; + + struct CIDRange { + uint32_t m_StartCode; + uint32_t m_EndCode; + uint16_t m_StartCID; + }; + + template <typename T, typename... Args> + friend CFX_RetainPtr<T> pdfium::MakeRetain(Args&&... args); + + void LoadPredefined(CPDF_CMapManager* pMgr, + const CFX_ByteString& name, + bool bPromptCJK); + void LoadEmbedded(const uint8_t* pData, uint32_t dwSize); + + bool IsLoaded() const { return m_bLoaded; } + bool IsVertWriting() const { return m_bVertical; } + uint16_t CIDFromCharCode(uint32_t charcode) const; + int GetCharSize(uint32_t charcode) const; + uint32_t GetNextChar(const char* pString, int nStrLen, int& offset) const; + int CountChar(const char* pString, int size) const; + int AppendChar(char* str, uint32_t charcode) const; + + private: + friend class CPDF_CMapParser; + friend class CPDF_CIDFont; + + CPDF_CMap(); + ~CPDF_CMap() override; + + CFX_ByteString m_PredefinedCMap; + bool m_bLoaded; + bool m_bVertical; + CIDSet m_Charset; + CodingScheme m_CodingScheme; + int m_Coding; + std::vector<bool> m_MixedTwoByteLeadingBytes; + std::vector<CodeRange> m_MixedFourByteLeadingRanges; + std::vector<uint16_t> m_DirectCharcodeToCIDTable; + std::vector<CIDRange> m_AdditionalCharcodeToCIDMappings; + const FXCMAP_CMap* m_pEmbedMap; +}; + +#endif // CORE_FPDFAPI_FONT_CPDF_CMAP_H_ diff --git a/core/fpdfapi/font/cpdf_cmapmanager.cpp b/core/fpdfapi/font/cpdf_cmapmanager.cpp new file mode 100644 index 0000000000..040af5556a --- /dev/null +++ b/core/fpdfapi/font/cpdf_cmapmanager.cpp @@ -0,0 +1,59 @@ +// Copyright 2017 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/fpdfapi/font/cpdf_cmapmanager.h" + +#include <utility> + +#include "core/fpdfapi/font/cpdf_cid2unicodemap.h" +#include "core/fpdfapi/font/cpdf_cmap.h" +#include "third_party/base/stl_util.h" + +CPDF_CMapManager::CPDF_CMapManager() {} + +CPDF_CMapManager::~CPDF_CMapManager() {} + +CFX_RetainPtr<CPDF_CMap> CPDF_CMapManager::GetPredefinedCMap( + const CFX_ByteString& name, + bool bPromptCJK) { + auto it = m_CMaps.find(name); + if (it != m_CMaps.end()) + return it->second; + + CFX_RetainPtr<CPDF_CMap> pCMap = LoadPredefinedCMap(name, bPromptCJK); + if (!name.IsEmpty()) + m_CMaps[name] = pCMap; + + return pCMap; +} + +CFX_RetainPtr<CPDF_CMap> CPDF_CMapManager::LoadPredefinedCMap( + const CFX_ByteString& name, + bool bPromptCJK) { + const char* pname = name.c_str(); + if (*pname == '/') + pname++; + + auto pCMap = pdfium::MakeRetain<CPDF_CMap>(); + pCMap->LoadPredefined(this, pname, bPromptCJK); + return pCMap; +} + +CPDF_CID2UnicodeMap* CPDF_CMapManager::GetCID2UnicodeMap(CIDSet charset, + bool bPromptCJK) { + if (!m_CID2UnicodeMaps[charset]) + m_CID2UnicodeMaps[charset] = LoadCID2UnicodeMap(charset, bPromptCJK); + + return m_CID2UnicodeMaps[charset].get(); +} + +std::unique_ptr<CPDF_CID2UnicodeMap> CPDF_CMapManager::LoadCID2UnicodeMap( + CIDSet charset, + bool bPromptCJK) { + auto pMap = pdfium::MakeUnique<CPDF_CID2UnicodeMap>(); + pMap->Load(this, charset, bPromptCJK); + return pMap; +} diff --git a/core/fpdfapi/font/cpdf_cmapmanager.h b/core/fpdfapi/font/cpdf_cmapmanager.h new file mode 100644 index 0000000000..1bc1c6f839 --- /dev/null +++ b/core/fpdfapi/font/cpdf_cmapmanager.h @@ -0,0 +1,36 @@ +// Copyright 2017 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 + +#ifndef CORE_FPDFAPI_FONT_CPDF_CMAPMANAGER_H_ +#define CORE_FPDFAPI_FONT_CPDF_CMAPMANAGER_H_ + +#include <map> +#include <memory> + +#include "core/fpdfapi/font/cpdf_cidfont.h" +#include "core/fxcrt/cfx_bytestring.h" +#include "core/fxcrt/cfx_retain_ptr.h" + +class CPDF_CMapManager { + public: + CPDF_CMapManager(); + ~CPDF_CMapManager(); + + CFX_RetainPtr<CPDF_CMap> GetPredefinedCMap(const CFX_ByteString& name, + bool bPromptCJK); + CPDF_CID2UnicodeMap* GetCID2UnicodeMap(CIDSet charset, bool bPromptCJK); + + private: + CFX_RetainPtr<CPDF_CMap> LoadPredefinedCMap(const CFX_ByteString& name, + bool bPromptCJK); + std::unique_ptr<CPDF_CID2UnicodeMap> LoadCID2UnicodeMap(CIDSet charset, + bool bPromptCJK); + + std::map<CFX_ByteString, CFX_RetainPtr<CPDF_CMap>> m_CMaps; + std::unique_ptr<CPDF_CID2UnicodeMap> m_CID2UnicodeMaps[6]; +}; + +#endif // CORE_FPDFAPI_FONT_CPDF_CMAPMANAGER_H_ diff --git a/core/fpdfapi/font/cpdf_cmapparser.cpp b/core/fpdfapi/font/cpdf_cmapparser.cpp new file mode 100644 index 0000000000..0f9bca6018 --- /dev/null +++ b/core/fpdfapi/font/cpdf_cmapparser.cpp @@ -0,0 +1,204 @@ +// 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/fpdfapi/font/cpdf_cmapparser.h" + +#include <vector> + +#include "core/fpdfapi/cmaps/cmap_int.h" +#include "core/fpdfapi/cpdf_modulemgr.h" +#include "core/fpdfapi/page/cpdf_pagemodule.h" +#include "core/fpdfapi/parser/cpdf_array.h" +#include "core/fpdfapi/parser/cpdf_dictionary.h" +#include "core/fpdfapi/parser/cpdf_simple_parser.h" +#include "core/fxcrt/fx_extension.h" +#include "core/fxge/fx_freetype.h" +#include "third_party/base/logging.h" +#include "third_party/base/stl_util.h" + +namespace { + +const char* const g_CharsetNames[CIDSET_NUM_SETS] = {nullptr, "GB1", "CNS1", + "Japan1", "Korea1", "UCS"}; + +CIDSet CIDSetFromSizeT(size_t index) { + if (index >= CIDSET_NUM_SETS) { + NOTREACHED(); + return CIDSET_UNKNOWN; + } + return static_cast<CIDSet>(index); +} + +CFX_ByteStringC CMap_GetString(const CFX_ByteStringC& word) { + if (word.GetLength() <= 2) + return CFX_ByteStringC(); + return CFX_ByteStringC(&word[1], word.GetLength() - 2); +} + +} // namespace + +CPDF_CMapParser::CPDF_CMapParser(CPDF_CMap* pCMap) + : m_pCMap(pCMap), m_Status(0), m_CodeSeq(0) {} + +CPDF_CMapParser::~CPDF_CMapParser() {} + +void CPDF_CMapParser::ParseWord(const CFX_ByteStringC& word) { + if (word.IsEmpty()) { + return; + } + if (word == "begincidchar") { + m_Status = 1; + m_CodeSeq = 0; + } else if (word == "begincidrange") { + m_Status = 2; + m_CodeSeq = 0; + } else if (word == "endcidrange" || word == "endcidchar") { + m_Status = 0; + } else if (word == "/WMode") { + m_Status = 6; + } else if (word == "/Registry") { + m_Status = 3; + } else if (word == "/Ordering") { + m_Status = 4; + } else if (word == "/Supplement") { + m_Status = 5; + } else if (word == "begincodespacerange") { + m_Status = 7; + m_CodeSeq = 0; + } else if (word == "usecmap") { + } else if (m_Status == 1 || m_Status == 2) { + m_CodePoints[m_CodeSeq] = CMap_GetCode(word); + m_CodeSeq++; + uint32_t StartCode, EndCode; + uint16_t StartCID; + if (m_Status == 1) { + if (m_CodeSeq < 2) { + return; + } + EndCode = StartCode = m_CodePoints[0]; + StartCID = (uint16_t)m_CodePoints[1]; + } else { + if (m_CodeSeq < 3) { + return; + } + StartCode = m_CodePoints[0]; + EndCode = m_CodePoints[1]; + StartCID = (uint16_t)m_CodePoints[2]; + } + if (EndCode < 0x10000) { + for (uint32_t code = StartCode; code <= EndCode; code++) { + m_pCMap->m_DirectCharcodeToCIDTable[code] = + static_cast<uint16_t>(StartCID + code - StartCode); + } + } else { + m_AdditionalCharcodeToCIDMappings.push_back( + {StartCode, EndCode, StartCID}); + } + m_CodeSeq = 0; + } else if (m_Status == 3) { + m_Status = 0; + } else if (m_Status == 4) { + m_pCMap->m_Charset = CharsetFromOrdering(CMap_GetString(word)); + m_Status = 0; + } else if (m_Status == 5) { + m_Status = 0; + } else if (m_Status == 6) { + m_pCMap->m_bVertical = CMap_GetCode(word) != 0; + m_Status = 0; + } else if (m_Status == 7) { + if (word == "endcodespacerange") { + uint32_t nSegs = pdfium::CollectionSize<uint32_t>(m_CodeRanges); + if (nSegs > 1) { + m_pCMap->m_CodingScheme = CPDF_CMap::MixedFourBytes; + m_pCMap->m_MixedFourByteLeadingRanges = m_CodeRanges; + } else if (nSegs == 1) { + m_pCMap->m_CodingScheme = (m_CodeRanges[0].m_CharSize == 2) + ? CPDF_CMap::TwoBytes + : CPDF_CMap::OneByte; + } + m_Status = 0; + } else { + if (word.GetLength() == 0 || word.GetAt(0) != '<') { + return; + } + if (m_CodeSeq % 2) { + CPDF_CMap::CodeRange range; + if (CMap_GetCodeRange(range, m_LastWord.AsStringC(), word)) + m_CodeRanges.push_back(range); + } + m_CodeSeq++; + } + } + m_LastWord = word; +} + +// Static. +uint32_t CPDF_CMapParser::CMap_GetCode(const CFX_ByteStringC& word) { + pdfium::base::CheckedNumeric<uint32_t> num = 0; + if (word.GetAt(0) == '<') { + for (int i = 1; i < word.GetLength() && std::isxdigit(word.GetAt(i)); ++i) { + num = num * 16 + FXSYS_HexCharToInt(word.GetAt(i)); + if (!num.IsValid()) + return 0; + } + return num.ValueOrDie(); + } + + for (int i = 0; i < word.GetLength() && std::isdigit(word.GetAt(i)); ++i) { + num = + num * 10 + FXSYS_DecimalCharToInt(static_cast<wchar_t>(word.GetAt(i))); + if (!num.IsValid()) + return 0; + } + return num.ValueOrDie(); +} + +// Static. +bool CPDF_CMapParser::CMap_GetCodeRange(CPDF_CMap::CodeRange& range, + const CFX_ByteStringC& first, + const CFX_ByteStringC& second) { + if (first.GetLength() == 0 || first.GetAt(0) != '<') + return false; + + int i; + for (i = 1; i < first.GetLength(); ++i) { + if (first.GetAt(i) == '>') { + break; + } + } + range.m_CharSize = (i - 1) / 2; + if (range.m_CharSize > 4) + return false; + + for (i = 0; i < range.m_CharSize; ++i) { + uint8_t digit1 = first.GetAt(i * 2 + 1); + uint8_t digit2 = first.GetAt(i * 2 + 2); + range.m_Lower[i] = + FXSYS_HexCharToInt(digit1) * 16 + FXSYS_HexCharToInt(digit2); + } + + uint32_t size = second.GetLength(); + for (i = 0; i < range.m_CharSize; ++i) { + uint8_t digit1 = ((uint32_t)i * 2 + 1 < size) + ? second.GetAt((FX_STRSIZE)i * 2 + 1) + : '0'; + uint8_t digit2 = ((uint32_t)i * 2 + 2 < size) + ? second.GetAt((FX_STRSIZE)i * 2 + 2) + : '0'; + range.m_Upper[i] = + FXSYS_HexCharToInt(digit1) * 16 + FXSYS_HexCharToInt(digit2); + } + return true; +} + +// static +CIDSet CPDF_CMapParser::CharsetFromOrdering(const CFX_ByteStringC& ordering) { + for (size_t charset = 1; charset < FX_ArraySize(g_CharsetNames); ++charset) { + if (ordering == g_CharsetNames[charset]) + return CIDSetFromSizeT(charset); + } + return CIDSET_UNKNOWN; +} diff --git a/core/fpdfapi/font/cpdf_cmapparser.h b/core/fpdfapi/font/cpdf_cmapparser.h new file mode 100644 index 0000000000..184ef75043 --- /dev/null +++ b/core/fpdfapi/font/cpdf_cmapparser.h @@ -0,0 +1,52 @@ +// Copyright 2017 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 + +#ifndef CORE_FPDFAPI_FONT_CPDF_CMAPPARSER_H_ +#define CORE_FPDFAPI_FONT_CPDF_CMAPPARSER_H_ + +#include <map> +#include <utility> +#include <vector> + +#include "core/fpdfapi/font/cpdf_cidfont.h" +#include "core/fpdfapi/font/cpdf_cmap.h" +#include "core/fxcrt/cfx_unowned_ptr.h" +#include "core/fxcrt/fx_basic.h" + +class CPDF_CMapParser { + public: + explicit CPDF_CMapParser(CPDF_CMap* pMap); + ~CPDF_CMapParser(); + + void ParseWord(const CFX_ByteStringC& str); + bool HasAdditionalMappings() const { + return !m_AdditionalCharcodeToCIDMappings.empty(); + } + std::vector<CPDF_CMap::CIDRange> TakeAdditionalMappings() { + return std::move(m_AdditionalCharcodeToCIDMappings); + } + + static CIDSet CharsetFromOrdering(const CFX_ByteStringC& ordering); + + private: + friend class cpdf_cmapparser_CMap_GetCode_Test; + friend class cpdf_cmapparser_CMap_GetCodeRange_Test; + + static uint32_t CMap_GetCode(const CFX_ByteStringC& word); + static bool CMap_GetCodeRange(CPDF_CMap::CodeRange& range, + const CFX_ByteStringC& first, + const CFX_ByteStringC& second); + + CFX_UnownedPtr<CPDF_CMap> const m_pCMap; + int m_Status; + int m_CodeSeq; + uint32_t m_CodePoints[4]; + std::vector<CPDF_CMap::CodeRange> m_CodeRanges; + std::vector<CPDF_CMap::CIDRange> m_AdditionalCharcodeToCIDMappings; + CFX_ByteString m_LastWord; +}; + +#endif // CORE_FPDFAPI_FONT_CPDF_CMAPPARSER_H_ diff --git a/core/fpdfapi/font/fpdf_font_cid_unittest.cpp b/core/fpdfapi/font/cpdf_cmapparser_unittest.cpp index 813a3a9d9b..0d55aa274d 100644 --- a/core/fpdfapi/font/fpdf_font_cid_unittest.cpp +++ b/core/fpdfapi/font/cpdf_cmapparser_unittest.cpp @@ -2,7 +2,8 @@ // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. -#include "core/fpdfapi/font/font_int.h" +#include "core/fpdfapi/font/cpdf_cmapparser.h" + #include "testing/gtest/include/gtest/gtest.h" namespace { @@ -17,7 +18,7 @@ bool uint_ranges_equal(uint8_t* a, uint8_t* b, size_t count) { } // namespace -TEST(fpdf_font_cid, CMap_GetCode) { +TEST(cpdf_cmapparser, CMap_GetCode) { EXPECT_EQ(0u, CPDF_CMapParser::CMap_GetCode("")); EXPECT_EQ(0u, CPDF_CMapParser::CMap_GetCode("<")); EXPECT_EQ(194u, CPDF_CMapParser::CMap_GetCode("<c2")); @@ -35,7 +36,7 @@ TEST(fpdf_font_cid, CMap_GetCode) { EXPECT_EQ(0u, CPDF_CMapParser::CMap_GetCode("<100000000")); } -TEST(fpdf_font_cid, CMap_GetCodeRange) { +TEST(cpdf_cmapparser, CMap_GetCodeRange) { CPDF_CMap::CodeRange range; // Must start with a < diff --git a/core/fpdfapi/font/cpdf_font.cpp b/core/fpdfapi/font/cpdf_font.cpp index 1a7fb60b0b..1faa4ec4be 100644 --- a/core/fpdfapi/font/cpdf_font.cpp +++ b/core/fpdfapi/font/cpdf_font.cpp @@ -15,7 +15,6 @@ #include "core/fpdfapi/font/cpdf_truetypefont.h" #include "core/fpdfapi/font/cpdf_type1font.h" #include "core/fpdfapi/font/cpdf_type3font.h" -#include "core/fpdfapi/font/font_int.h" #include "core/fpdfapi/page/cpdf_docpagedata.h" #include "core/fpdfapi/page/cpdf_pagemodule.h" #include "core/fpdfapi/parser/cpdf_array.h" @@ -477,3 +476,27 @@ CFX_Font* CPDF_Font::GetFontFallback(int position) { return nullptr; return m_FontFallbacks[position].get(); } + +// static +int CPDF_Font::TT2PDF(int m, FXFT_Face face) { + int upm = FXFT_Get_Face_UnitsPerEM(face); + if (upm == 0) + return m; + return pdfium::base::checked_cast<int>( + (static_cast<double>(m) * 1000 + upm / 2) / upm); +} + +// static +bool CPDF_Font::FT_UseTTCharmap(FXFT_Face face, + int platform_id, + int encoding_id) { + auto** pCharMap = FXFT_Get_Face_Charmaps(face); + for (int i = 0; i < FXFT_Get_Face_CharmapCount(face); i++) { + if (FXFT_Get_Charmap_PlatformID(pCharMap[i]) == platform_id && + FXFT_Get_Charmap_EncodingID(pCharMap[i]) == encoding_id) { + FXFT_Set_Charmap(face, pCharMap[i]); + return true; + } + } + return false; +} diff --git a/core/fpdfapi/font/cpdf_font.h b/core/fpdfapi/font/cpdf_font.h index c8e65e26a5..1fef77b322 100644 --- a/core/fpdfapi/font/cpdf_font.h +++ b/core/fpdfapi/font/cpdf_font.h @@ -10,6 +10,7 @@ #include <memory> #include <vector> +#include "core/fpdfapi/font/cpdf_tounicodemap.h" #include "core/fpdfapi/parser/cpdf_stream_acc.h" #include "core/fxcrt/cfx_unowned_ptr.h" #include "core/fxcrt/fx_string.h" @@ -87,6 +88,9 @@ class CPDF_Font { protected: CPDF_Font(); + static int TT2PDF(int m, FXFT_Face face); + static bool FT_UseTTCharmap(FXFT_Face face, int platform_id, int encoding_id); + virtual bool Load() = 0; void LoadUnicodeMap() const; // logically const only. diff --git a/core/fpdfapi/font/cpdf_fontglobals.cpp b/core/fpdfapi/font/cpdf_fontglobals.cpp new file mode 100644 index 0000000000..ddf87b1c09 --- /dev/null +++ b/core/fpdfapi/font/cpdf_fontglobals.cpp @@ -0,0 +1,39 @@ +// Copyright 2017 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/fpdfapi/font/cpdf_fontglobals.h" + +#include <utility> + +#include "core/fpdfapi/parser/cpdf_document.h" +#include "third_party/base/ptr_util.h" +#include "third_party/base/stl_util.h" + +CPDF_FontGlobals::CPDF_FontGlobals() { + memset(m_EmbeddedCharsets, 0, sizeof(m_EmbeddedCharsets)); + memset(m_EmbeddedToUnicodes, 0, sizeof(m_EmbeddedToUnicodes)); +} + +CPDF_FontGlobals::~CPDF_FontGlobals() {} + +CPDF_Font* CPDF_FontGlobals::Find(CPDF_Document* pDoc, uint32_t index) { + auto it = m_StockMap.find(pDoc); + if (it == m_StockMap.end()) + return nullptr; + return it->second ? it->second->GetFont(index) : nullptr; +} + +CPDF_Font* CPDF_FontGlobals::Set(CPDF_Document* pDoc, + uint32_t index, + std::unique_ptr<CPDF_Font> pFont) { + if (!pdfium::ContainsKey(m_StockMap, pDoc)) + m_StockMap[pDoc] = pdfium::MakeUnique<CFX_StockFontArray>(); + return m_StockMap[pDoc]->SetFont(index, std::move(pFont)); +} + +void CPDF_FontGlobals::Clear(CPDF_Document* pDoc) { + m_StockMap.erase(pDoc); +} diff --git a/core/fpdfapi/font/cpdf_fontglobals.h b/core/fpdfapi/font/cpdf_fontglobals.h new file mode 100644 index 0000000000..b930aa2905 --- /dev/null +++ b/core/fpdfapi/font/cpdf_fontglobals.h @@ -0,0 +1,45 @@ +// Copyright 2017 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 + +#ifndef CORE_FPDFAPI_FONT_CPDF_FONTGLOBALS_H_ +#define CORE_FPDFAPI_FONT_CPDF_FONTGLOBALS_H_ + +#include <map> +#include <memory> + +#include "core/fpdfapi/cmaps/cmap_int.h" +#include "core/fpdfapi/font/cfx_stockfontarray.h" +#include "core/fpdfapi/font/cpdf_cmapmanager.h" +#include "core/fxcrt/fx_basic.h" + +class CPDF_FontGlobals { + public: + CPDF_FontGlobals(); + ~CPDF_FontGlobals(); + + void Clear(CPDF_Document* pDoc); + CPDF_Font* Find(CPDF_Document* pDoc, uint32_t index); + + // Takes ownership of |pFont|, returns unowned pointer to it. + CPDF_Font* Set(CPDF_Document* key, + uint32_t index, + std::unique_ptr<CPDF_Font> pFont); + + CPDF_CMapManager m_CMapManager; + struct { + CFX_UnownedPtr<const FXCMAP_CMap> m_pMapList; + uint32_t m_Count; + } m_EmbeddedCharsets[CIDSET_NUM_SETS]; + struct { + const uint16_t* m_pMap; + uint32_t m_Count; + } m_EmbeddedToUnicodes[CIDSET_NUM_SETS]; + + private: + std::map<CPDF_Document*, std::unique_ptr<CFX_StockFontArray>> m_StockMap; +}; + +#endif // CORE_FPDFAPI_FONT_CPDF_FONTGLOBALS_H_ diff --git a/core/fpdfapi/font/cpdf_simplefont.cpp b/core/fpdfapi/font/cpdf_simplefont.cpp index cb8f00a98a..ebf2cb65c7 100644 --- a/core/fpdfapi/font/cpdf_simplefont.cpp +++ b/core/fpdfapi/font/cpdf_simplefont.cpp @@ -6,7 +6,6 @@ #include "core/fpdfapi/font/cpdf_simplefont.h" -#include "core/fpdfapi/font/font_int.h" #include "core/fpdfapi/parser/cpdf_array.h" #include "core/fpdfapi/parser/cpdf_dictionary.h" #include "core/fxge/fx_freetype.h" diff --git a/core/fpdfapi/font/fpdf_font.cpp b/core/fpdfapi/font/cpdf_tounicodemap.cpp index ebdad49da7..8989f0be37 100644 --- a/core/fpdfapi/font/fpdf_font.cpp +++ b/core/fpdfapi/font/cpdf_tounicodemap.cpp @@ -1,99 +1,18 @@ -// Copyright 2014 PDFium Authors. All rights reserved. +// Copyright 2017 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/fpdfapi/font/font_int.h" - -#include <memory> -#include <utility> +#include "core/fpdfapi/font/cpdf_tounicodemap.h" #include "core/fpdfapi/cpdf_modulemgr.h" -#include "core/fpdfapi/page/cpdf_form.h" +#include "core/fpdfapi/font/cpdf_cid2unicodemap.h" #include "core/fpdfapi/page/cpdf_pagemodule.h" -#include "core/fpdfapi/parser/cpdf_array.h" -#include "core/fpdfapi/parser/cpdf_dictionary.h" -#include "core/fpdfapi/parser/cpdf_document.h" -#include "core/fpdfapi/parser/cpdf_name.h" -#include "core/fpdfapi/parser/cpdf_number.h" #include "core/fpdfapi/parser/cpdf_simple_parser.h" -#include "core/fpdfapi/parser/cpdf_stream_acc.h" #include "core/fxcrt/fx_extension.h" #include "core/fxcrt/fx_safe_types.h" -#include "core/fxge/fx_freetype.h" #include "third_party/base/numerics/safe_conversions.h" -#include "third_party/base/ptr_util.h" -#include "third_party/base/stl_util.h" - -int TT2PDF(int m, FXFT_Face face) { - int upm = FXFT_Get_Face_UnitsPerEM(face); - if (upm == 0) - return m; - return pdfium::base::checked_cast<int>( - (static_cast<double>(m) * 1000 + upm / 2) / upm); -} - -bool FT_UseTTCharmap(FXFT_Face face, int platform_id, int encoding_id) { - auto** pCharMap = FXFT_Get_Face_Charmaps(face); - for (int i = 0; i < FXFT_Get_Face_CharmapCount(face); i++) { - if (FXFT_Get_Charmap_PlatformID(pCharMap[i]) == platform_id && - FXFT_Get_Charmap_EncodingID(pCharMap[i]) == encoding_id) { - FXFT_Set_Charmap(face, pCharMap[i]); - return true; - } - } - return false; -} - -CFX_StockFontArray::CFX_StockFontArray() {} - -CFX_StockFontArray::~CFX_StockFontArray() { - for (size_t i = 0; i < FX_ArraySize(m_StockFonts); ++i) { - if (m_StockFonts[i]) - delete m_StockFonts[i]->GetFontDict(); - } -} - -CPDF_Font* CFX_StockFontArray::GetFont(uint32_t index) const { - if (index >= FX_ArraySize(m_StockFonts)) - return nullptr; - return m_StockFonts[index].get(); -} - -CPDF_Font* CFX_StockFontArray::SetFont(uint32_t index, - std::unique_ptr<CPDF_Font> pFont) { - CPDF_Font* result = pFont.get(); - if (index < FX_ArraySize(m_StockFonts)) - m_StockFonts[index] = std::move(pFont); - return result; -} - -CPDF_FontGlobals::CPDF_FontGlobals() { - memset(m_EmbeddedCharsets, 0, sizeof(m_EmbeddedCharsets)); - memset(m_EmbeddedToUnicodes, 0, sizeof(m_EmbeddedToUnicodes)); -} - -CPDF_FontGlobals::~CPDF_FontGlobals() {} - -CPDF_Font* CPDF_FontGlobals::Find(CPDF_Document* pDoc, uint32_t index) { - auto it = m_StockMap.find(pDoc); - if (it == m_StockMap.end()) - return nullptr; - return it->second ? it->second->GetFont(index) : nullptr; -} - -CPDF_Font* CPDF_FontGlobals::Set(CPDF_Document* pDoc, - uint32_t index, - std::unique_ptr<CPDF_Font> pFont) { - if (!pdfium::ContainsKey(m_StockMap, pDoc)) - m_StockMap[pDoc] = pdfium::MakeUnique<CFX_StockFontArray>(); - return m_StockMap[pDoc]->SetFont(index, std::move(pFont)); -} - -void CPDF_FontGlobals::Clear(CPDF_Document* pDoc) { - m_StockMap.erase(pDoc); -} CFX_WideString CPDF_ToUnicodeMap::Lookup(uint32_t charcode) const { auto it = m_Map.find(charcode); diff --git a/core/fpdfapi/font/cpdf_tounicodemap.h b/core/fpdfapi/font/cpdf_tounicodemap.h new file mode 100644 index 0000000000..83db6e3030 --- /dev/null +++ b/core/fpdfapi/font/cpdf_tounicodemap.h @@ -0,0 +1,42 @@ +// Copyright 2017 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 + +#ifndef CORE_FPDFAPI_FONT_CPDF_TOUNICODEMAP_H_ +#define CORE_FPDFAPI_FONT_CPDF_TOUNICODEMAP_H_ + +#include <map> + +#include "core/fpdfapi/parser/cpdf_stream.h" +#include "core/fxcrt/cfx_unowned_ptr.h" +#include "core/fxcrt/fx_basic.h" + +class CPDF_CID2UnicodeMap; + +class CPDF_ToUnicodeMap { + public: + CPDF_ToUnicodeMap(); + ~CPDF_ToUnicodeMap(); + + void Load(CPDF_Stream* pStream); + + CFX_WideString Lookup(uint32_t charcode) const; + uint32_t ReverseLookup(wchar_t unicode) const; + + private: + friend class cpdf_tounicodemap_StringToCode_Test; + friend class cpdf_tounicodemap_StringToWideString_Test; + + static uint32_t StringToCode(const CFX_ByteStringC& str); + static CFX_WideString StringToWideString(const CFX_ByteStringC& str); + + uint32_t GetUnicode(); + + std::map<uint32_t, uint32_t> m_Map; + CFX_UnownedPtr<CPDF_CID2UnicodeMap> m_pBaseMap; + CFX_WideTextBuf m_MultiCharBuf; +}; + +#endif // CORE_FPDFAPI_FONT_CPDF_TOUNICODEMAP_H_ diff --git a/core/fpdfapi/font/fpdf_font_unittest.cpp b/core/fpdfapi/font/cpdf_tounicodemap_unittest.cpp index 977ae8a3bb..299f4d9b1e 100644 --- a/core/fpdfapi/font/fpdf_font_unittest.cpp +++ b/core/fpdfapi/font/cpdf_tounicodemap_unittest.cpp @@ -2,10 +2,11 @@ // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. -#include "core/fpdfapi/font/font_int.h" +#include "core/fpdfapi/font/cpdf_tounicodemap.h" + #include "testing/gtest/include/gtest/gtest.h" -TEST(fpdf_font, StringToCode) { +TEST(cpdf_tounicodemap, StringToCode) { EXPECT_EQ(0u, CPDF_ToUnicodeMap::StringToCode("")); EXPECT_EQ(194u, CPDF_ToUnicodeMap::StringToCode("<c2")); EXPECT_EQ(162u, CPDF_ToUnicodeMap::StringToCode("<A2")); @@ -14,7 +15,7 @@ TEST(fpdf_font, StringToCode) { EXPECT_EQ(128u, CPDF_ToUnicodeMap::StringToCode("128")); } -TEST(fpdf_font, StringToWideString) { +TEST(cpdf_tounicodemap, StringToWideString) { EXPECT_EQ(L"", CPDF_ToUnicodeMap::StringToWideString("")); EXPECT_EQ(L"", CPDF_ToUnicodeMap::StringToWideString("1234")); diff --git a/core/fpdfapi/font/cpdf_truetypefont.cpp b/core/fpdfapi/font/cpdf_truetypefont.cpp index 7f4512da05..5fde64693a 100644 --- a/core/fpdfapi/font/cpdf_truetypefont.cpp +++ b/core/fpdfapi/font/cpdf_truetypefont.cpp @@ -6,7 +6,6 @@ #include "core/fpdfapi/font/cpdf_truetypefont.h" -#include "core/fpdfapi/font/font_int.h" #include "core/fpdfapi/parser/cpdf_dictionary.h" #include "core/fxge/fx_font.h" diff --git a/core/fpdfapi/font/cpdf_type1font.cpp b/core/fpdfapi/font/cpdf_type1font.cpp index ac0aed4050..a7ac264fe0 100644 --- a/core/fpdfapi/font/cpdf_type1font.cpp +++ b/core/fpdfapi/font/cpdf_type1font.cpp @@ -6,7 +6,6 @@ #include "core/fpdfapi/font/cpdf_type1font.h" -#include "core/fpdfapi/font/font_int.h" #include "core/fpdfapi/parser/cpdf_dictionary.h" #include "core/fxge/cfx_gemodule.h" #include "core/fxge/fx_freetype.h" diff --git a/core/fpdfapi/font/font_int.h b/core/fpdfapi/font/font_int.h deleted file mode 100644 index 5544a1b016..0000000000 --- a/core/fpdfapi/font/font_int.h +++ /dev/null @@ -1,229 +0,0 @@ -// 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 - -#ifndef CORE_FPDFAPI_FONT_FONT_INT_H_ -#define CORE_FPDFAPI_FONT_FONT_INT_H_ - -#include <map> -#include <memory> -#include <utility> -#include <vector> - -#include "core/fpdfapi/font/cpdf_cidfont.h" -#include "core/fxcrt/cfx_retain_ptr.h" -#include "core/fxcrt/cfx_unowned_ptr.h" -#include "core/fxcrt/fx_basic.h" - -class CPDF_CID2UnicodeMap; -class CPDF_CMapManager; -class CPDF_Font; -class CPDF_Stream; -struct FXCMAP_CMap; - -using FXFT_Library = void*; - -int TT2PDF(int m, FXFT_Face face); -bool FT_UseTTCharmap(FXFT_Face face, int platform_id, int encoding_id); -CIDSet CharsetFromOrdering(const CFX_ByteStringC& ordering); - -class CFX_StockFontArray { - public: - CFX_StockFontArray(); - ~CFX_StockFontArray(); - - // Takes ownership of |pFont|, returns unowned pointer to it. - CPDF_Font* SetFont(uint32_t index, std::unique_ptr<CPDF_Font> pFont); - CPDF_Font* GetFont(uint32_t index) const; - - private: - std::unique_ptr<CPDF_Font> m_StockFonts[14]; -}; - -enum CIDCoding : uint8_t { - CIDCODING_UNKNOWN = 0, - CIDCODING_GB, - CIDCODING_BIG5, - CIDCODING_JIS, - CIDCODING_KOREA, - CIDCODING_UCS2, - CIDCODING_CID, - CIDCODING_UTF16, -}; - -class CPDF_CMap : public CFX_Retainable { - public: - enum CodingScheme : uint8_t { - OneByte, - TwoBytes, - MixedTwoBytes, - MixedFourBytes - }; - - struct CodeRange { - int m_CharSize; - uint8_t m_Lower[4]; - uint8_t m_Upper[4]; - }; - - struct CIDRange { - uint32_t m_StartCode; - uint32_t m_EndCode; - uint16_t m_StartCID; - }; - - template <typename T, typename... Args> - friend CFX_RetainPtr<T> pdfium::MakeRetain(Args&&... args); - - void LoadPredefined(CPDF_CMapManager* pMgr, - const CFX_ByteString& name, - bool bPromptCJK); - void LoadEmbedded(const uint8_t* pData, uint32_t dwSize); - - bool IsLoaded() const { return m_bLoaded; } - bool IsVertWriting() const { return m_bVertical; } - uint16_t CIDFromCharCode(uint32_t charcode) const; - int GetCharSize(uint32_t charcode) const; - uint32_t GetNextChar(const char* pString, int nStrLen, int& offset) const; - int CountChar(const char* pString, int size) const; - int AppendChar(char* str, uint32_t charcode) const; - - private: - friend class CPDF_CMapParser; - friend class CPDF_CIDFont; - - CPDF_CMap(); - ~CPDF_CMap() override; - - CFX_ByteString m_PredefinedCMap; - bool m_bLoaded; - bool m_bVertical; - CIDSet m_Charset; - CodingScheme m_CodingScheme; - int m_Coding; - std::vector<bool> m_MixedTwoByteLeadingBytes; - std::vector<CodeRange> m_MixedFourByteLeadingRanges; - std::vector<uint16_t> m_DirectCharcodeToCIDTable; - std::vector<CIDRange> m_AdditionalCharcodeToCIDMappings; - const FXCMAP_CMap* m_pEmbedMap; -}; - -class CPDF_CMapManager { - public: - CPDF_CMapManager(); - ~CPDF_CMapManager(); - - CFX_RetainPtr<CPDF_CMap> GetPredefinedCMap(const CFX_ByteString& name, - bool bPromptCJK); - CPDF_CID2UnicodeMap* GetCID2UnicodeMap(CIDSet charset, bool bPromptCJK); - - private: - CFX_RetainPtr<CPDF_CMap> LoadPredefinedCMap(const CFX_ByteString& name, - bool bPromptCJK); - std::unique_ptr<CPDF_CID2UnicodeMap> LoadCID2UnicodeMap(CIDSet charset, - bool bPromptCJK); - - std::map<CFX_ByteString, CFX_RetainPtr<CPDF_CMap>> m_CMaps; - std::unique_ptr<CPDF_CID2UnicodeMap> m_CID2UnicodeMaps[6]; -}; - -class CPDF_CMapParser { - public: - explicit CPDF_CMapParser(CPDF_CMap* pMap); - ~CPDF_CMapParser(); - - void ParseWord(const CFX_ByteStringC& str); - bool HasAdditionalMappings() const { - return !m_AdditionalCharcodeToCIDMappings.empty(); - } - std::vector<CPDF_CMap::CIDRange> TakeAdditionalMappings() { - return std::move(m_AdditionalCharcodeToCIDMappings); - } - - private: - friend class fpdf_font_cid_CMap_GetCode_Test; - friend class fpdf_font_cid_CMap_GetCodeRange_Test; - - static uint32_t CMap_GetCode(const CFX_ByteStringC& word); - static bool CMap_GetCodeRange(CPDF_CMap::CodeRange& range, - const CFX_ByteStringC& first, - const CFX_ByteStringC& second); - - CFX_UnownedPtr<CPDF_CMap> const m_pCMap; - int m_Status; - int m_CodeSeq; - uint32_t m_CodePoints[4]; - std::vector<CPDF_CMap::CodeRange> m_CodeRanges; - std::vector<CPDF_CMap::CIDRange> m_AdditionalCharcodeToCIDMappings; - CFX_ByteString m_LastWord; -}; - -class CPDF_CID2UnicodeMap { - public: - CPDF_CID2UnicodeMap(); - ~CPDF_CID2UnicodeMap(); - - bool IsLoaded(); - void Load(CPDF_CMapManager* pMgr, CIDSet charset, bool bPromptCJK); - wchar_t UnicodeFromCID(uint16_t CID); - - private: - CIDSet m_Charset; - const uint16_t* m_pEmbeddedMap; - uint32_t m_EmbeddedCount; -}; - -class CPDF_ToUnicodeMap { - public: - CPDF_ToUnicodeMap(); - ~CPDF_ToUnicodeMap(); - - void Load(CPDF_Stream* pStream); - - CFX_WideString Lookup(uint32_t charcode) const; - uint32_t ReverseLookup(wchar_t unicode) const; - - private: - friend class fpdf_font_StringToCode_Test; - friend class fpdf_font_StringToWideString_Test; - - static uint32_t StringToCode(const CFX_ByteStringC& str); - static CFX_WideString StringToWideString(const CFX_ByteStringC& str); - - uint32_t GetUnicode(); - - std::map<uint32_t, uint32_t> m_Map; - CFX_UnownedPtr<CPDF_CID2UnicodeMap> m_pBaseMap; - CFX_WideTextBuf m_MultiCharBuf; -}; - -class CPDF_FontGlobals { - public: - CPDF_FontGlobals(); - ~CPDF_FontGlobals(); - - void Clear(CPDF_Document* pDoc); - CPDF_Font* Find(CPDF_Document* pDoc, uint32_t index); - - // Takes ownership of |pFont|, returns unowned pointer to it. - CPDF_Font* Set(CPDF_Document* key, - uint32_t index, - std::unique_ptr<CPDF_Font> pFont); - - CPDF_CMapManager m_CMapManager; - struct { - CFX_UnownedPtr<const FXCMAP_CMap> m_pMapList; - uint32_t m_Count; - } m_EmbeddedCharsets[CIDSET_NUM_SETS]; - struct { - const uint16_t* m_pMap; - uint32_t m_Count; - } m_EmbeddedToUnicodes[CIDSET_NUM_SETS]; - - private: - std::map<CPDF_Document*, std::unique_ptr<CFX_StockFontArray>> m_StockMap; -}; - -#endif // CORE_FPDFAPI_FONT_FONT_INT_H_ |