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-rw-r--r--core/fpdfapi/page/cpdf_streamcontentparser.cpp59
-rw-r--r--core/fpdfapi/page/cpdf_streamcontentparser.h6
-rw-r--r--core/fpdfapi/page/cpdf_streamparser.cpp3
-rw-r--r--core/fpdfapi/page/cpdf_streamparser.h5
4 files changed, 27 insertions, 46 deletions
diff --git a/core/fpdfapi/page/cpdf_streamcontentparser.cpp b/core/fpdfapi/page/cpdf_streamcontentparser.cpp
index 141442bb28..2426027976 100644
--- a/core/fpdfapi/page/cpdf_streamcontentparser.cpp
+++ b/core/fpdfapi/page/cpdf_streamcontentparser.cpp
@@ -316,18 +316,17 @@ int CPDF_StreamContentParser::GetNextParamPos() {
return index;
}
-void CPDF_StreamContentParser::AddNameParam(const FX_CHAR* name, int len) {
- CFX_ByteStringC bsName(name, len);
+void CPDF_StreamContentParser::AddNameParam(const CFX_ByteStringC& bsName) {
ContentParam& param = m_ParamBuf[GetNextParamPos()];
- if (len > 32) {
+ if (bsName.GetLength() > 32) {
param.m_Type = ContentParam::OBJECT;
param.m_pObject = pdfium::MakeUnique<CPDF_Name>(
m_pDocument->GetByteStringPool(), PDF_NameDecode(bsName));
} else {
param.m_Type = ContentParam::NAME;
if (bsName.Find('#') == -1) {
- FXSYS_memcpy(param.m_Name.m_Buffer, name, len);
- param.m_Name.m_Len = len;
+ FXSYS_memcpy(param.m_Name.m_Buffer, bsName.raw_str(), bsName.GetLength());
+ param.m_Name.m_Len = bsName.GetLength();
} else {
CFX_ByteString str = PDF_NameDecode(bsName);
FXSYS_memcpy(param.m_Name.m_Buffer, str.c_str(), str.GetLength());
@@ -336,11 +335,10 @@ void CPDF_StreamContentParser::AddNameParam(const FX_CHAR* name, int len) {
}
}
-void CPDF_StreamContentParser::AddNumberParam(const FX_CHAR* str, int len) {
+void CPDF_StreamContentParser::AddNumberParam(const CFX_ByteStringC& str) {
ContentParam& param = m_ParamBuf[GetNextParamPos()];
param.m_Type = ContentParam::NUMBER;
- param.m_Number.m_bInteger =
- FX_atonum(CFX_ByteStringC(str, len), &param.m_Number.m_Integer);
+ param.m_Number.m_bInteger = FX_atonum(str, &param.m_Number.m_Integer);
}
void CPDF_StreamContentParser::AddObjectParam(
@@ -570,21 +568,10 @@ CPDF_StreamContentParser::InitializeOpCodes() {
});
}
-void CPDF_StreamContentParser::OnOperator(const FX_CHAR* op) {
- int i = 0;
- uint32_t opid = 0;
- while (i < 4 && op[i]) {
- opid = (opid << 8) + op[i];
- i++;
- }
- while (i < 4) {
- opid <<= 8;
- i++;
- }
-
+void CPDF_StreamContentParser::OnOperator(const CFX_ByteStringC& op) {
static const OpCodes s_OpCodes = InitializeOpCodes();
- auto it = s_OpCodes.find(opid);
+ auto it = s_OpCodes.find(op.GetID());
if (it != s_OpCodes.end())
(this->*it->second)();
}
@@ -632,9 +619,7 @@ void CPDF_StreamContentParser::Handle_BeginImage() {
while (1) {
CPDF_StreamParser::SyntaxType type = m_pSyntax->ParseNextElement();
if (type == CPDF_StreamParser::Keyword) {
- CFX_ByteString bsKeyword(m_pSyntax->GetWordBuf(),
- m_pSyntax->GetWordSize());
- if (bsKeyword != "ID") {
+ if (m_pSyntax->GetWord() != "ID") {
m_pSyntax->SetPos(savePos);
return;
}
@@ -642,8 +627,7 @@ void CPDF_StreamContentParser::Handle_BeginImage() {
if (type != CPDF_StreamParser::Name) {
break;
}
- CFX_ByteString key((const FX_CHAR*)m_pSyntax->GetWordBuf() + 1,
- m_pSyntax->GetWordSize() - 1);
+ CFX_ByteString key(m_pSyntax->GetWord().Mid(1));
auto pObj = m_pSyntax->ReadNextObject(false, 0);
if (!key.IsEmpty()) {
uint32_t dwObjNum = pObj ? pObj->GetObjNum() : 0;
@@ -677,8 +661,7 @@ void CPDF_StreamContentParser::Handle_BeginImage() {
if (type != CPDF_StreamParser::Keyword) {
continue;
}
- if (m_pSyntax->GetWordSize() == 2 && m_pSyntax->GetWordBuf()[0] == 'E' &&
- m_pSyntax->GetWordBuf()[1] == 'I') {
+ if (m_pSyntax->GetWord() == "EI") {
break;
}
}
@@ -1561,15 +1544,14 @@ uint32_t CPDF_StreamContentParser::Parse(const uint8_t* pData,
case CPDF_StreamParser::EndOfData:
return m_pSyntax->GetPos();
case CPDF_StreamParser::Keyword:
- OnOperator((char*)syntax.GetWordBuf());
+ OnOperator(syntax.GetWord());
ClearAllParams();
break;
case CPDF_StreamParser::Number:
- AddNumberParam((char*)syntax.GetWordBuf(), syntax.GetWordSize());
+ AddNumberParam(syntax.GetWord());
break;
case CPDF_StreamParser::Name:
- AddNameParam((const FX_CHAR*)syntax.GetWordBuf() + 1,
- syntax.GetWordSize() - 1);
+ AddNameParam(syntax.GetWord().Mid(1));
break;
default:
AddObjectParam(syntax.GetObject());
@@ -1589,9 +1571,10 @@ void CPDF_StreamContentParser::ParsePathObject() {
case CPDF_StreamParser::EndOfData:
return;
case CPDF_StreamParser::Keyword: {
- int len = m_pSyntax->GetWordSize();
+ CFX_ByteStringC strc = m_pSyntax->GetWord();
+ int len = strc.GetLength();
if (len == 1) {
- switch (m_pSyntax->GetWordBuf()[0]) {
+ switch (strc[0]) {
case kPathOperatorSubpath:
AddPathPoint(params[0], params[1], FXPT_MOVETO);
nParams = 0;
@@ -1627,8 +1610,8 @@ void CPDF_StreamContentParser::ParsePathObject() {
break;
}
} else if (len == 2) {
- if (m_pSyntax->GetWordBuf()[0] == kPathOperatorRectangle[0] &&
- m_pSyntax->GetWordBuf()[1] == kPathOperatorRectangle[1]) {
+ if (strc[0] == kPathOperatorRectangle[0] &&
+ strc[1] == kPathOperatorRectangle[1]) {
AddPathRect(params[0], params[1], params[2], params[3]);
nParams = 0;
} else {
@@ -1647,9 +1630,7 @@ void CPDF_StreamContentParser::ParsePathObject() {
break;
int value;
- bool bInteger = FX_atonum(
- CFX_ByteStringC(m_pSyntax->GetWordBuf(), m_pSyntax->GetWordSize()),
- &value);
+ bool bInteger = FX_atonum(m_pSyntax->GetWord(), &value);
params[nParams++] = bInteger ? (FX_FLOAT)value : *(FX_FLOAT*)&value;
break;
}
diff --git a/core/fpdfapi/page/cpdf_streamcontentparser.h b/core/fpdfapi/page/cpdf_streamcontentparser.h
index 6429b02bbd..e23ae8ea99 100644
--- a/core/fpdfapi/page/cpdf_streamcontentparser.h
+++ b/core/fpdfapi/page/cpdf_streamcontentparser.h
@@ -77,16 +77,16 @@ class CPDF_StreamContentParser {
std::unordered_map<uint32_t, void (CPDF_StreamContentParser::*)()>;
static OpCodes InitializeOpCodes();
- void AddNumberParam(const FX_CHAR* str, int len);
+ void AddNameParam(const CFX_ByteStringC& str);
+ void AddNumberParam(const CFX_ByteStringC& str);
void AddObjectParam(std::unique_ptr<CPDF_Object> pObj);
- void AddNameParam(const FX_CHAR* name, int size);
int GetNextParamPos();
void ClearAllParams();
CPDF_Object* GetObject(uint32_t index);
CFX_ByteString GetString(uint32_t index);
FX_FLOAT GetNumber(uint32_t index);
int GetInteger(uint32_t index) { return (int32_t)(GetNumber(index)); }
- void OnOperator(const FX_CHAR* op);
+ void OnOperator(const CFX_ByteStringC& op);
void AddTextObject(CFX_ByteString* pText,
FX_FLOAT fInitKerning,
FX_FLOAT* pKerning,
diff --git a/core/fpdfapi/page/cpdf_streamparser.cpp b/core/fpdfapi/page/cpdf_streamparser.cpp
index e26de605b0..14efba2200 100644
--- a/core/fpdfapi/page/cpdf_streamparser.cpp
+++ b/core/fpdfapi/page/cpdf_streamparser.cpp
@@ -209,8 +209,7 @@ std::unique_ptr<CPDF_Stream> CPDF_StreamParser::ReadInlineStream(
dwStreamSize += m_Pos - dwPrevPos;
continue;
}
- if (GetWordSize() == 2 && GetWordBuf()[0] == 'E' &&
- GetWordBuf()[1] == 'I') {
+ if (GetWord() == "EI") {
m_Pos = dwPrevPos;
break;
}
diff --git a/core/fpdfapi/page/cpdf_streamparser.h b/core/fpdfapi/page/cpdf_streamparser.h
index ce01dd04ee..dc3b7dcb40 100644
--- a/core/fpdfapi/page/cpdf_streamparser.h
+++ b/core/fpdfapi/page/cpdf_streamparser.h
@@ -28,8 +28,9 @@ class CPDF_StreamParser {
~CPDF_StreamParser();
SyntaxType ParseNextElement();
- const uint8_t* GetWordBuf() const { return m_WordBuffer; }
- uint32_t GetWordSize() const { return m_WordSize; }
+ CFX_ByteStringC GetWord() const {
+ return CFX_ByteStringC(m_WordBuffer, m_WordSize);
+ }
uint32_t GetPos() const { return m_Pos; }
void SetPos(uint32_t pos) { m_Pos = pos; }
std::unique_ptr<CPDF_Object> GetObject() { return std::move(m_pLastObj); }
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 02:37:57 +0000