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Unified Diff: core/fpdfapi/fpdf_font/fpdf_font_cid.cpp

Issue 2392773003: Move core/fpdfapi/fpdf_font to core/fpdfapi/font (Closed)
Patch Set: Created 4 years, 2 months ago
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Index: core/fpdfapi/fpdf_font/fpdf_font_cid.cpp
diff --git a/core/fpdfapi/fpdf_font/fpdf_font_cid.cpp b/core/fpdfapi/fpdf_font/fpdf_font_cid.cpp
deleted file mode 100644
index 91117122aaabc80b6615d8e232e537f79c287003..0000000000000000000000000000000000000000
--- a/core/fpdfapi/fpdf_font/fpdf_font_cid.cpp
+++ /dev/null
@@ -1,784 +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
-
-#include "core/fpdfapi/fpdf_font/font_int.h"
-
-#include "core/fpdfapi/cmaps/cmap_int.h"
-#include "core/fpdfapi/cpdf_modulemgr.h"
-#include "core/fpdfapi/fpdf_font/ttgsubtable.h"
-#include "core/fpdfapi/fpdf_page/cpdf_pagemodule.h"
-#include "core/fpdfapi/fpdf_parser/cpdf_array.h"
-#include "core/fpdfapi/fpdf_parser/cpdf_dictionary.h"
-#include "core/fpdfapi/fpdf_parser/cpdf_simple_parser.h"
-#include "core/fxcrt/fx_ext.h"
-#include "core/fxge/fx_freetype.h"
-
-namespace {
-
-const FX_CHAR* const g_CharsetNames[CIDSET_NUM_SETS] = {
- nullptr, "GB1", "CNS1", "Japan1", "Korea1", "UCS"};
-
-
-class CPDF_PredefinedCMap {
- public:
- const FX_CHAR* m_pName;
- CIDSet m_Charset;
- CIDCoding m_Coding;
- CPDF_CMap::CodingScheme m_CodingScheme;
- uint8_t m_LeadingSegCount;
- uint8_t m_LeadingSegs[4];
-};
-
-const CPDF_PredefinedCMap g_PredefinedCMaps[] = {
- {"GB-EUC",
- CIDSET_GB1,
- CIDCODING_GB,
- CPDF_CMap::MixedTwoBytes,
- 1,
- {0xa1, 0xfe}},
- {"GBpc-EUC",
- CIDSET_GB1,
- CIDCODING_GB,
- CPDF_CMap::MixedTwoBytes,
- 1,
- {0xa1, 0xfc}},
- {"GBK-EUC",
- CIDSET_GB1,
- CIDCODING_GB,
- CPDF_CMap::MixedTwoBytes,
- 1,
- {0x81, 0xfe}},
- {"GBKp-EUC",
- CIDSET_GB1,
- CIDCODING_GB,
- CPDF_CMap::MixedTwoBytes,
- 1,
- {0x81, 0xfe}},
- {"GBK2K-EUC",
- CIDSET_GB1,
- CIDCODING_GB,
- CPDF_CMap::MixedTwoBytes,
- 1,
- {0x81, 0xfe}},
- {"GBK2K",
- CIDSET_GB1,
- CIDCODING_GB,
- CPDF_CMap::MixedTwoBytes,
- 1,
- {0x81, 0xfe}},
- {"UniGB-UCS2", CIDSET_GB1, CIDCODING_UCS2, CPDF_CMap::TwoBytes, 0, {}},
- {"UniGB-UTF16", CIDSET_GB1, CIDCODING_UTF16, CPDF_CMap::TwoBytes, 0, {}},
- {"B5pc",
- CIDSET_CNS1,
- CIDCODING_BIG5,
- CPDF_CMap::MixedTwoBytes,
- 1,
- {0xa1, 0xfc}},
- {"HKscs-B5",
- CIDSET_CNS1,
- CIDCODING_BIG5,
- CPDF_CMap::MixedTwoBytes,
- 1,
- {0x88, 0xfe}},
- {"ETen-B5",
- CIDSET_CNS1,
- CIDCODING_BIG5,
- CPDF_CMap::MixedTwoBytes,
- 1,
- {0xa1, 0xfe}},
- {"ETenms-B5",
- CIDSET_CNS1,
- CIDCODING_BIG5,
- CPDF_CMap::MixedTwoBytes,
- 1,
- {0xa1, 0xfe}},
- {"UniCNS-UCS2", CIDSET_CNS1, CIDCODING_UCS2, CPDF_CMap::TwoBytes, 0, {}},
- {"UniCNS-UTF16", CIDSET_CNS1, CIDCODING_UTF16, CPDF_CMap::TwoBytes, 0, {}},
- {"83pv-RKSJ",
- CIDSET_JAPAN1,
- CIDCODING_JIS,
- CPDF_CMap::MixedTwoBytes,
- 2,
- {0x81, 0x9f, 0xe0, 0xfc}},
- {"90ms-RKSJ",
- CIDSET_JAPAN1,
- CIDCODING_JIS,
- CPDF_CMap::MixedTwoBytes,
- 2,
- {0x81, 0x9f, 0xe0, 0xfc}},
- {"90msp-RKSJ",
- CIDSET_JAPAN1,
- CIDCODING_JIS,
- CPDF_CMap::MixedTwoBytes,
- 2,
- {0x81, 0x9f, 0xe0, 0xfc}},
- {"90pv-RKSJ",
- CIDSET_JAPAN1,
- CIDCODING_JIS,
- CPDF_CMap::MixedTwoBytes,
- 2,
- {0x81, 0x9f, 0xe0, 0xfc}},
- {"Add-RKSJ",
- CIDSET_JAPAN1,
- CIDCODING_JIS,
- CPDF_CMap::MixedTwoBytes,
- 2,
- {0x81, 0x9f, 0xe0, 0xfc}},
- {"EUC",
- CIDSET_JAPAN1,
- CIDCODING_JIS,
- CPDF_CMap::MixedTwoBytes,
- 2,
- {0x8e, 0x8e, 0xa1, 0xfe}},
- {"H", CIDSET_JAPAN1, CIDCODING_JIS, CPDF_CMap::TwoBytes, 1, {0x21, 0x7e}},
- {"V", CIDSET_JAPAN1, CIDCODING_JIS, CPDF_CMap::TwoBytes, 1, {0x21, 0x7e}},
- {"Ext-RKSJ",
- CIDSET_JAPAN1,
- CIDCODING_JIS,
- CPDF_CMap::MixedTwoBytes,
- 2,
- {0x81, 0x9f, 0xe0, 0xfc}},
- {"UniJIS-UCS2", CIDSET_JAPAN1, CIDCODING_UCS2, CPDF_CMap::TwoBytes, 0, {}},
- {"UniJIS-UCS2-HW",
- CIDSET_JAPAN1,
- CIDCODING_UCS2,
- CPDF_CMap::TwoBytes,
- 0,
- {}},
- {"UniJIS-UTF16",
- CIDSET_JAPAN1,
- CIDCODING_UTF16,
- CPDF_CMap::TwoBytes,
- 0,
- {}},
- {"KSC-EUC",
- CIDSET_KOREA1,
- CIDCODING_KOREA,
- CPDF_CMap::MixedTwoBytes,
- 1,
- {0xa1, 0xfe}},
- {"KSCms-UHC",
- CIDSET_KOREA1,
- CIDCODING_KOREA,
- CPDF_CMap::MixedTwoBytes,
- 1,
- {0x81, 0xfe}},
- {"KSCms-UHC-HW",
- CIDSET_KOREA1,
- CIDCODING_KOREA,
- CPDF_CMap::MixedTwoBytes,
- 1,
- {0x81, 0xfe}},
- {"KSCpc-EUC",
- CIDSET_KOREA1,
- CIDCODING_KOREA,
- CPDF_CMap::MixedTwoBytes,
- 1,
- {0xa1, 0xfd}},
- {"UniKS-UCS2", CIDSET_KOREA1, CIDCODING_UCS2, CPDF_CMap::TwoBytes, 0, {}},
- {"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 CompareDWORD(const void* data1, const void* data2) {
- return (*(uint32_t*)data1) - (*(uint32_t*)data2);
-}
-
-int CompareCID(const void* key, const void* element) {
- if ((*(uint32_t*)key) < (*(uint32_t*)element)) {
- return -1;
- }
- if ((*(uint32_t*)key) >
- (*(uint32_t*)element) + ((uint32_t*)element)[1] / 65536) {
- return 1;
- }
- return 0;
-}
-
-int CheckCodeRange(uint8_t* codes,
- int size,
- CMap_CodeRange* pRanges,
- int nRanges) {
- int iSeg = nRanges - 1;
- while (iSeg >= 0) {
- if (pRanges[iSeg].m_CharSize < size) {
- --iSeg;
- continue;
- }
- int iChar = 0;
- while (iChar < size) {
- if (codes[iChar] < pRanges[iSeg].m_Lower[iChar] ||
- codes[iChar] > pRanges[iSeg].m_Upper[iChar]) {
- break;
- }
- ++iChar;
- }
- if (iChar == pRanges[iSeg].m_CharSize)
- return 2;
-
- if (iChar)
- return (size == pRanges[iSeg].m_CharSize) ? 2 : 1;
- iSeg--;
- }
- return 0;
-}
-
-int GetCharSizeImpl(uint32_t charcode,
- CMap_CodeRange* pRanges,
- int iRangesSize) {
- if (!iRangesSize)
- return 1;
-
- uint8_t codes[4];
- codes[0] = codes[1] = 0x00;
- codes[2] = (uint8_t)(charcode >> 8 & 0xFF);
- codes[3] = (uint8_t)charcode;
- int offset = 0;
- int size = 4;
- for (int i = 0; i < 4; ++i) {
- int iSeg = iRangesSize - 1;
- while (iSeg >= 0) {
- if (pRanges[iSeg].m_CharSize < size) {
- --iSeg;
- continue;
- }
- int iChar = 0;
- while (iChar < size) {
- if (codes[offset + iChar] < pRanges[iSeg].m_Lower[iChar] ||
- codes[offset + iChar] > pRanges[iSeg].m_Upper[iChar]) {
- break;
- }
- ++iChar;
- }
- if (iChar == pRanges[iSeg].m_CharSize)
- return size;
- --iSeg;
- }
- --size;
- ++offset;
- }
- return 1;
-}
-
-} // namespace
-
-CPDF_CMapManager::CPDF_CMapManager() {
- FXSYS_memset(m_CID2UnicodeMaps, 0, sizeof m_CID2UnicodeMaps);
-}
-CPDF_CMapManager::~CPDF_CMapManager() {
- for (const auto& pair : m_CMaps) {
- delete pair.second;
- }
- m_CMaps.clear();
- for (size_t i = 0; i < FX_ArraySize(m_CID2UnicodeMaps); ++i) {
- delete m_CID2UnicodeMaps[i];
- }
-}
-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;
- }
- CPDF_CMap* pCMap = LoadPredefinedCMap(name, bPromptCJK);
- if (!name.IsEmpty()) {
- m_CMaps[name] = pCMap;
- }
- return pCMap;
-}
-CPDF_CMap* CPDF_CMapManager::LoadPredefinedCMap(const CFX_ByteString& name,
- bool bPromptCJK) {
- CPDF_CMap* pCMap = new CPDF_CMap;
- const FX_CHAR* pname = name.c_str();
- if (*pname == '/') {
- pname++;
- }
- 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];
-}
-CPDF_CID2UnicodeMap* CPDF_CMapManager::LoadCID2UnicodeMap(CIDSet charset,
- bool bPromptCJK) {
- CPDF_CID2UnicodeMap* pMap = new CPDF_CID2UnicodeMap();
- pMap->Load(this, charset, bPromptCJK);
- return pMap;
-}
-
-CPDF_CMapParser::CPDF_CMapParser()
- : m_pCMap(nullptr), m_Status(0), m_CodeSeq(0) {}
-
-CPDF_CMapParser::~CPDF_CMapParser() {}
-
-void CPDF_CMapParser::Initialize(CPDF_CMap* pCMap) {
- m_pCMap = pCMap;
- m_Status = 0;
- m_CodeSeq = 0;
- m_AddMaps.EstimateSize(0, 10240);
-}
-
-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_pMapping[code] = (uint16_t)(StartCID + code - StartCode);
- }
- } else {
- uint32_t buf[2];
- buf[0] = StartCode;
- buf[1] = ((EndCode - StartCode) << 16) + StartCID;
- m_AddMaps.AppendBlock(buf, sizeof buf);
- }
- 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") {
- int nSegs = m_CodeRanges.GetSize();
- if (nSegs > 1) {
- m_pCMap->m_CodingScheme = CPDF_CMap::MixedFourBytes;
- m_pCMap->m_nCodeRanges = nSegs;
- FX_Free(m_pCMap->m_pLeadingBytes);
- m_pCMap->m_pLeadingBytes =
- FX_Alloc2D(uint8_t, nSegs, sizeof(CMap_CodeRange));
- FXSYS_memcpy(m_pCMap->m_pLeadingBytes, m_CodeRanges.GetData(),
- nSegs * sizeof(CMap_CodeRange));
- } 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) {
- CMap_CodeRange range;
- if (CMap_GetCodeRange(range, m_LastWord.AsStringC(), word)) {
- m_CodeRanges.Add(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_toHexDigit(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_toDecimalDigit(static_cast<FX_WCHAR>(word.GetAt(i)));
- if (!num.IsValid())
- return 0;
- }
- return num.ValueOrDie();
-}
-
-// Static.
-bool CPDF_CMapParser::CMap_GetCodeRange(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_toHexDigit(digit1) * 16 + FXSYS_toHexDigit(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_toHexDigit(digit1) * 16 + FXSYS_toHexDigit(digit2);
- }
- return true;
-}
-
-CPDF_CMap::CPDF_CMap() {
- m_Charset = CIDSET_UNKNOWN;
- m_Coding = CIDCODING_UNKNOWN;
- m_CodingScheme = TwoBytes;
- m_bVertical = false;
- m_bLoaded = false;
- m_pMapping = nullptr;
- m_pLeadingBytes = nullptr;
- m_pAddMapping = nullptr;
- m_pEmbedMap = nullptr;
- m_nCodeRanges = 0;
-}
-CPDF_CMap::~CPDF_CMap() {
- FX_Free(m_pMapping);
- FX_Free(m_pAddMapping);
- FX_Free(m_pLeadingBytes);
-}
-
-bool CPDF_CMap::IsLoaded() const {
- return m_bLoaded;
-}
-
-bool CPDF_CMap::IsVertWriting() const {
- return m_bVertical;
-}
-
-void CPDF_CMap::LoadPredefined(CPDF_CMapManager* pMgr,
- const CFX_ByteString& bsName,
- bool bPromptCJK) {
- m_PredefinedCMap = bsName;
- if (m_PredefinedCMap == "Identity-H" || m_PredefinedCMap == "Identity-V") {
- m_Coding = CIDCODING_CID;
- m_bVertical = bsName[9] == 'V';
- m_bLoaded = true;
- return;
- }
- CFX_ByteString cmapid = m_PredefinedCMap;
- m_bVertical = cmapid.Right(1) == "V";
- if (cmapid.GetLength() > 2) {
- cmapid = cmapid.Left(cmapid.GetLength() - 2);
- }
- const CPDF_PredefinedCMap* map = nullptr;
- for (size_t i = 0; i < FX_ArraySize(g_PredefinedCMaps); ++i) {
- if (cmapid == CFX_ByteStringC(g_PredefinedCMaps[i].m_pName)) {
- map = &g_PredefinedCMaps[i];
- break;
- }
- }
- if (!map)
- return;
-
- m_Charset = map->m_Charset;
- m_Coding = map->m_Coding;
- m_CodingScheme = map->m_CodingScheme;
- if (m_CodingScheme == MixedTwoBytes) {
- m_pLeadingBytes = FX_Alloc(uint8_t, 256);
- for (uint32_t i = 0; i < map->m_LeadingSegCount; ++i) {
- const uint8_t* segs = map->m_LeadingSegs;
- for (int b = segs[i * 2]; b <= segs[i * 2 + 1]; ++b) {
- m_pLeadingBytes[b] = 1;
- }
- }
- }
- FPDFAPI_FindEmbeddedCMap(bsName, m_Charset, m_Coding, m_pEmbedMap);
- if (!m_pEmbedMap)
- return;
-
- m_bLoaded = true;
-}
-
-void CPDF_CMap::LoadEmbedded(const uint8_t* pData, uint32_t size) {
- m_pMapping = FX_Alloc(uint16_t, 65536);
- CPDF_CMapParser parser;
- parser.Initialize(this);
- CPDF_SimpleParser syntax(pData, size);
- while (1) {
- CFX_ByteStringC word = syntax.GetWord();
- if (word.IsEmpty()) {
- break;
- }
- parser.ParseWord(word);
- }
- if (m_CodingScheme == MixedFourBytes && parser.m_AddMaps.GetSize()) {
- m_pAddMapping = FX_Alloc(uint8_t, parser.m_AddMaps.GetSize() + 4);
- *(uint32_t*)m_pAddMapping = parser.m_AddMaps.GetSize() / 8;
- FXSYS_memcpy(m_pAddMapping + 4, parser.m_AddMaps.GetBuffer(),
- parser.m_AddMaps.GetSize());
- FXSYS_qsort(m_pAddMapping + 4, parser.m_AddMaps.GetSize() / 8, 8,
- CompareDWORD);
- }
-}
-
-uint16_t CPDF_CMap::CIDFromCharCode(uint32_t charcode) const {
- if (m_Coding == CIDCODING_CID) {
- return (uint16_t)charcode;
- }
- if (m_pEmbedMap) {
- return FPDFAPI_CIDFromCharCode(m_pEmbedMap, charcode);
- }
- if (!m_pMapping) {
- return (uint16_t)charcode;
- }
- if (charcode >> 16) {
- if (m_pAddMapping) {
- void* found = FXSYS_bsearch(&charcode, m_pAddMapping + 4,
- *(uint32_t*)m_pAddMapping, 8, CompareCID);
- if (!found)
- return 0;
- return (uint16_t)(((uint32_t*)found)[1] % 65536 + charcode -
- *(uint32_t*)found);
- }
- return 0;
- }
- return m_pMapping[charcode];
-}
-
-uint32_t CPDF_CMap::GetNextChar(const FX_CHAR* pString,
- int nStrLen,
- int& offset) const {
- switch (m_CodingScheme) {
- case OneByte:
- return ((uint8_t*)pString)[offset++];
- case TwoBytes:
- offset += 2;
- return ((uint8_t*)pString)[offset - 2] * 256 +
- ((uint8_t*)pString)[offset - 1];
- case MixedTwoBytes: {
- uint8_t byte1 = ((uint8_t*)pString)[offset++];
- if (!m_pLeadingBytes[byte1]) {
- return byte1;
- }
- uint8_t byte2 = ((uint8_t*)pString)[offset++];
- return byte1 * 256 + byte2;
- }
- case MixedFourBytes: {
- uint8_t codes[4];
- int char_size = 1;
- codes[0] = ((uint8_t*)pString)[offset++];
- CMap_CodeRange* pRanges = (CMap_CodeRange*)m_pLeadingBytes;
- while (1) {
- int ret = CheckCodeRange(codes, char_size, pRanges, m_nCodeRanges);
- if (ret == 0) {
- return 0;
- }
- if (ret == 2) {
- uint32_t charcode = 0;
- for (int i = 0; i < char_size; i++) {
- charcode = (charcode << 8) + codes[i];
- }
- return charcode;
- }
- if (char_size == 4 || offset == nStrLen) {
- return 0;
- }
- codes[char_size++] = ((uint8_t*)pString)[offset++];
- }
- break;
- }
- }
- return 0;
-}
-int CPDF_CMap::GetCharSize(uint32_t charcode) const {
- switch (m_CodingScheme) {
- case OneByte:
- return 1;
- case TwoBytes:
- return 2;
- case MixedTwoBytes:
- case MixedFourBytes:
- if (charcode < 0x100) {
- return 1;
- }
- if (charcode < 0x10000) {
- return 2;
- }
- if (charcode < 0x1000000) {
- return 3;
- }
- return 4;
- }
- return 1;
-}
-int CPDF_CMap::CountChar(const FX_CHAR* pString, int size) const {
- switch (m_CodingScheme) {
- case OneByte:
- return size;
- case TwoBytes:
- return (size + 1) / 2;
- case MixedTwoBytes: {
- int count = 0;
- for (int i = 0; i < size; i++) {
- count++;
- if (m_pLeadingBytes[((uint8_t*)pString)[i]]) {
- i++;
- }
- }
- return count;
- }
- case MixedFourBytes: {
- int count = 0, offset = 0;
- while (offset < size) {
- GetNextChar(pString, size, offset);
- count++;
- }
- return count;
- }
- }
- return size;
-}
-
-int CPDF_CMap::AppendChar(FX_CHAR* str, uint32_t charcode) const {
- switch (m_CodingScheme) {
- case OneByte:
- str[0] = (uint8_t)charcode;
- return 1;
- case TwoBytes:
- str[0] = (uint8_t)(charcode / 256);
- str[1] = (uint8_t)(charcode % 256);
- return 2;
- case MixedTwoBytes:
- case MixedFourBytes:
- if (charcode < 0x100) {
- CMap_CodeRange* pRanges = (CMap_CodeRange*)m_pLeadingBytes;
- int iSize = GetCharSizeImpl(charcode, pRanges, m_nCodeRanges);
- if (iSize == 0) {
- iSize = 1;
- }
- if (iSize > 1) {
- FXSYS_memset(str, 0, sizeof(uint8_t) * iSize);
- }
- str[iSize - 1] = (uint8_t)charcode;
- return iSize;
- }
- if (charcode < 0x10000) {
- str[0] = (uint8_t)(charcode >> 8);
- str[1] = (uint8_t)charcode;
- return 2;
- }
- if (charcode < 0x1000000) {
- str[0] = (uint8_t)(charcode >> 16);
- str[1] = (uint8_t)(charcode >> 8);
- str[2] = (uint8_t)charcode;
- return 3;
- }
- str[0] = (uint8_t)(charcode >> 24);
- str[1] = (uint8_t)(charcode >> 16);
- str[2] = (uint8_t)(charcode >> 8);
- str[3] = (uint8_t)charcode;
- return 4;
- }
- return 0;
-}
-
-CPDF_CID2UnicodeMap::CPDF_CID2UnicodeMap() {
- m_EmbeddedCount = 0;
-}
-
-CPDF_CID2UnicodeMap::~CPDF_CID2UnicodeMap() {}
-
-bool CPDF_CID2UnicodeMap::IsLoaded() {
- return m_EmbeddedCount != 0;
-}
-
-FX_WCHAR 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;
-}
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