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Diffstat (limited to 'core/src/fpdfapi/fpdf_page/fpdf_page_parser.cpp')
-rw-r--r--core/src/fpdfapi/fpdf_page/fpdf_page_parser.cpp210
1 files changed, 107 insertions, 103 deletions
diff --git a/core/src/fpdfapi/fpdf_page/fpdf_page_parser.cpp b/core/src/fpdfapi/fpdf_page/fpdf_page_parser.cpp
index 99d0c5adc0..cfc581f4c8 100644
--- a/core/src/fpdfapi/fpdf_page/fpdf_page_parser.cpp
+++ b/core/src/fpdfapi/fpdf_page/fpdf_page_parser.cpp
@@ -4,16 +4,79 @@
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-#include "pageint.h"
+#include "core/src/fpdfapi/fpdf_page/pageint.h"
#include "core/include/fpdfapi/fpdf_module.h"
#include "core/include/fpdfapi/fpdf_page.h"
#include "core/include/fpdfapi/fpdf_serial.h"
-#define REQUIRE_PARAMS(count) \
- if (m_ParamCount != count) { \
- return; \
+namespace {
+
+struct _FX_BSTR {
+ const FX_CHAR* m_Ptr;
+ int m_Size;
+};
+#define _FX_BSTRC(str) \
+ { str, sizeof(str) - 1 }
+
+struct PDF_AbbrPairs {
+ _FX_BSTR full_name;
+ _FX_BSTR abbr;
+};
+
+const PDF_AbbrPairs PDF_InlineKeyAbbr[] = {
+ {_FX_BSTRC("BitsPerComponent"), _FX_BSTRC("BPC")},
+ {_FX_BSTRC("ColorSpace"), _FX_BSTRC("CS")},
+ {_FX_BSTRC("Decode"), _FX_BSTRC("D")},
+ {_FX_BSTRC("DecodeParms"), _FX_BSTRC("DP")},
+ {_FX_BSTRC("Filter"), _FX_BSTRC("F")},
+ {_FX_BSTRC("Height"), _FX_BSTRC("H")},
+ {_FX_BSTRC("ImageMask"), _FX_BSTRC("IM")},
+ {_FX_BSTRC("Interpolate"), _FX_BSTRC("I")},
+ {_FX_BSTRC("Width"), _FX_BSTRC("W")},
+};
+
+const PDF_AbbrPairs PDF_InlineValueAbbr[] = {
+ {_FX_BSTRC("DeviceGray"), _FX_BSTRC("G")},
+ {_FX_BSTRC("DeviceRGB"), _FX_BSTRC("RGB")},
+ {_FX_BSTRC("DeviceCMYK"), _FX_BSTRC("CMYK")},
+ {_FX_BSTRC("Indexed"), _FX_BSTRC("I")},
+ {_FX_BSTRC("ASCIIHexDecode"), _FX_BSTRC("AHx")},
+ {_FX_BSTRC("ASCII85Decode"), _FX_BSTRC("A85")},
+ {_FX_BSTRC("LZWDecode"), _FX_BSTRC("LZW")},
+ {_FX_BSTRC("FlateDecode"), _FX_BSTRC("Fl")},
+ {_FX_BSTRC("RunLengthDecode"), _FX_BSTRC("RL")},
+ {_FX_BSTRC("CCITTFaxDecode"), _FX_BSTRC("CCF")},
+ {_FX_BSTRC("DCTDecode"), _FX_BSTRC("DCT")},
+};
+
+CFX_ByteStringC PDF_FindFullName(const PDF_AbbrPairs* table,
+ size_t count,
+ const CFX_ByteStringC& abbr) {
+ for (size_t i = 0; i < count; ++i) {
+ if (abbr.GetLength() != table[i].abbr.m_Size)
+ continue;
+ if (memcmp(abbr.GetPtr(), table[i].abbr.m_Ptr, abbr.GetLength()))
+ continue;
+ return CFX_ByteStringC(table[i].full_name.m_Ptr, table[i].full_name.m_Size);
}
+ return CFX_ByteStringC();
+}
+
+CFX_ByteStringC PDF_FindAbbrName(const PDF_AbbrPairs* table,
+ size_t count,
+ const CFX_ByteStringC& name) {
+ for (size_t i = 0; i < count; ++i) {
+ if (name.GetLength() != table[i].full_name.m_Size)
+ continue;
+ if (memcmp(name.GetPtr(), table[i].full_name.m_Ptr, name.GetLength()))
+ continue;
+ return CFX_ByteStringC(table[i].abbr.m_Ptr, table[i].abbr.m_Size);
+ }
+ return CFX_ByteStringC();
+}
+
+} // namespace
CPDF_StreamContentParser::CPDF_StreamContentParser(
CPDF_Document* pDocument,
@@ -361,7 +424,7 @@ FX_BOOL CPDF_StreamContentParser::OnOperator(const FX_CHAR* op) {
while (i < 4) {
opid <<= 8;
i++;
- };
+ }
int low = 0, high = sizeof g_OpCodes / sizeof(OpCode) - 1;
while (low <= high) {
int middle = (low + high) / 2;
@@ -431,60 +494,8 @@ void CPDF_StreamContentParser::Handle_BeginMarkedContent() {
CFX_ByteString tag = GetString(0);
m_CurContentMark.GetModify()->AddMark(tag, NULL, FALSE);
}
-struct _FX_BSTR {
- const FX_CHAR* m_Ptr;
- int m_Size;
-};
-#define _FX_BSTRC(str) \
- { str, sizeof(str) - 1 }
-const _FX_BSTR _PDF_InlineKeyAbbr[] = {
- _FX_BSTRC("BitsPerComponent"),
- _FX_BSTRC("BPC"),
- _FX_BSTRC("ColorSpace"),
- _FX_BSTRC("CS"),
- _FX_BSTRC("Decode"),
- _FX_BSTRC("D"),
- _FX_BSTRC("DecodeParms"),
- _FX_BSTRC("DP"),
- _FX_BSTRC("Filter"),
- _FX_BSTRC("F"),
- _FX_BSTRC("Height"),
- _FX_BSTRC("H"),
- _FX_BSTRC("ImageMask"),
- _FX_BSTRC("IM"),
- _FX_BSTRC("Interpolate"),
- _FX_BSTRC("I"),
- _FX_BSTRC("Width"),
- _FX_BSTRC("W"),
-};
-const _FX_BSTR _PDF_InlineValueAbbr[] = {
- _FX_BSTRC("DeviceGray"), _FX_BSTRC("G"),
- _FX_BSTRC("DeviceRGB"), _FX_BSTRC("RGB"),
- _FX_BSTRC("DeviceCMYK"), _FX_BSTRC("CMYK"),
- _FX_BSTRC("Indexed"), _FX_BSTRC("I"),
- _FX_BSTRC("ASCIIHexDecode"), _FX_BSTRC("AHx"),
- _FX_BSTRC("ASCII85Decode"), _FX_BSTRC("A85"),
- _FX_BSTRC("LZWDecode"), _FX_BSTRC("LZW"),
- _FX_BSTRC("FlateDecode"), _FX_BSTRC("Fl"),
- _FX_BSTRC("RunLengthDecode"), _FX_BSTRC("RL"),
- _FX_BSTRC("CCITTFaxDecode"), _FX_BSTRC("CCF"),
- _FX_BSTRC("DCTDecode"), _FX_BSTRC("DCT"),
-};
-static CFX_ByteStringC _PDF_FindFullName(const _FX_BSTR* table,
- int count,
- const CFX_ByteStringC& abbr) {
- int i = 0;
- while (i < count) {
- if (abbr.GetLength() == table[i + 1].m_Size &&
- FXSYS_memcmp(abbr.GetPtr(), table[i + 1].m_Ptr, abbr.GetLength()) ==
- 0) {
- return CFX_ByteStringC(table[i].m_Ptr, table[i].m_Size);
- }
- i += 2;
- }
- return CFX_ByteStringC();
-}
-void _PDF_ReplaceAbbr(CPDF_Object* pObj) {
+
+void PDF_ReplaceAbbr(CPDF_Object* pObj) {
switch (pObj->GetType()) {
case PDFOBJ_DICTIONARY: {
CPDF_Dictionary* pDict = pObj->AsDictionary();
@@ -492,9 +503,8 @@ void _PDF_ReplaceAbbr(CPDF_Object* pObj) {
while (pos) {
CFX_ByteString key;
CPDF_Object* value = pDict->GetNextElement(pos, key);
- CFX_ByteStringC fullname = _PDF_FindFullName(
- _PDF_InlineKeyAbbr, sizeof _PDF_InlineKeyAbbr / sizeof(_FX_BSTR),
- key);
+ CFX_ByteStringC fullname = PDF_FindFullName(
+ PDF_InlineKeyAbbr, FX_ArraySize(PDF_InlineKeyAbbr), key);
if (!fullname.IsEmpty()) {
pDict->ReplaceKey(key, fullname);
key = fullname;
@@ -502,14 +512,13 @@ void _PDF_ReplaceAbbr(CPDF_Object* pObj) {
if (value->IsName()) {
CFX_ByteString name = value->GetString();
- fullname = _PDF_FindFullName(
- _PDF_InlineValueAbbr,
- sizeof _PDF_InlineValueAbbr / sizeof(_FX_BSTR), name);
+ fullname = PDF_FindFullName(PDF_InlineValueAbbr,
+ FX_ArraySize(PDF_InlineValueAbbr), name);
if (!fullname.IsEmpty()) {
pDict->SetAtName(key, fullname);
}
} else {
- _PDF_ReplaceAbbr(value);
+ PDF_ReplaceAbbr(value);
}
}
break;
@@ -520,35 +529,21 @@ void _PDF_ReplaceAbbr(CPDF_Object* pObj) {
CPDF_Object* pElement = pArray->GetElement(i);
if (pElement->IsName()) {
CFX_ByteString name = pElement->GetString();
- CFX_ByteStringC fullname = _PDF_FindFullName(
- _PDF_InlineValueAbbr,
- sizeof _PDF_InlineValueAbbr / sizeof(_FX_BSTR), name);
+ CFX_ByteStringC fullname = PDF_FindFullName(
+ PDF_InlineValueAbbr, FX_ArraySize(PDF_InlineValueAbbr), name);
if (!fullname.IsEmpty()) {
pArray->SetAt(i, new CPDF_Name(fullname));
}
} else {
- _PDF_ReplaceAbbr(pElement);
+ PDF_ReplaceAbbr(pElement);
}
}
break;
}
}
}
-static CFX_ByteStringC _PDF_FindAbbrName(const _FX_BSTR* table,
- int count,
- const CFX_ByteStringC& fullName) {
- int i = 0;
- while (i < count) {
- if (fullName.GetLength() == table[i].m_Size &&
- FXSYS_memcmp(fullName.GetPtr(), table[i].m_Ptr, fullName.GetLength()) ==
- 0) {
- return CFX_ByteStringC(table[i + 1].m_Ptr, table[i + 1].m_Size);
- }
- i += 2;
- }
- return CFX_ByteStringC();
-}
-void _PDF_ReplaceFull(CPDF_Object* pObj) {
+
+void PDF_ReplaceFull(CPDF_Object* pObj) {
switch (pObj->GetType()) {
case PDFOBJ_DICTIONARY: {
CPDF_Dictionary* pDict = pObj->AsDictionary();
@@ -556,23 +551,21 @@ void _PDF_ReplaceFull(CPDF_Object* pObj) {
while (pos) {
CFX_ByteString key;
CPDF_Object* value = pDict->GetNextElement(pos, key);
- CFX_ByteStringC abbrName = _PDF_FindAbbrName(
- _PDF_InlineKeyAbbr, sizeof(_PDF_InlineKeyAbbr) / sizeof(_FX_BSTR),
- key);
+ CFX_ByteStringC abbrName = PDF_FindAbbrName(
+ PDF_InlineKeyAbbr, FX_ArraySize(PDF_InlineKeyAbbr), key);
if (!abbrName.IsEmpty()) {
pDict->ReplaceKey(key, abbrName);
key = abbrName;
}
if (value->IsName()) {
CFX_ByteString name = value->GetString();
- abbrName = _PDF_FindAbbrName(
- _PDF_InlineValueAbbr,
- sizeof(_PDF_InlineValueAbbr) / sizeof(_FX_BSTR), name);
+ abbrName = PDF_FindAbbrName(PDF_InlineValueAbbr,
+ FX_ArraySize(PDF_InlineValueAbbr), name);
if (!abbrName.IsEmpty()) {
pDict->SetAtName(key, abbrName);
}
} else {
- _PDF_ReplaceFull(value);
+ PDF_ReplaceFull(value);
}
}
break;
@@ -583,14 +576,13 @@ void _PDF_ReplaceFull(CPDF_Object* pObj) {
CPDF_Object* pElement = pArray->GetElement(i);
if (pElement->IsName()) {
CFX_ByteString name = pElement->GetString();
- CFX_ByteStringC abbrName = _PDF_FindAbbrName(
- _PDF_InlineValueAbbr,
- sizeof _PDF_InlineValueAbbr / sizeof(_FX_BSTR), name);
+ CFX_ByteStringC abbrName = PDF_FindAbbrName(
+ PDF_InlineValueAbbr, FX_ArraySize(PDF_InlineValueAbbr), name);
if (!abbrName.IsEmpty()) {
pArray->SetAt(i, new CPDF_Name(abbrName));
}
} else {
- _PDF_ReplaceFull(pElement);
+ PDF_ReplaceFull(pElement);
}
}
break;
@@ -893,7 +885,9 @@ void CPDF_StreamContentParser::Handle_SetLineCap() {
(CFX_GraphStateData::LineCap)GetInteger(0);
}
void CPDF_StreamContentParser::Handle_SetCMYKColor_Fill() {
- REQUIRE_PARAMS(4);
+ if (m_ParamCount != 4)
+ return;
+
FX_FLOAT values[4];
for (int i = 0; i < 4; i++) {
values[i] = GetNumber(3 - i);
@@ -902,7 +896,9 @@ void CPDF_StreamContentParser::Handle_SetCMYKColor_Fill() {
m_pCurStates->m_ColorState.SetFillColor(pCS, values, 4);
}
void CPDF_StreamContentParser::Handle_SetCMYKColor_Stroke() {
- REQUIRE_PARAMS(4);
+ if (m_ParamCount != 4)
+ return;
+
FX_FLOAT values[4];
for (int i = 0; i < 4; i++) {
values[i] = GetNumber(3 - i);
@@ -911,14 +907,18 @@ void CPDF_StreamContentParser::Handle_SetCMYKColor_Stroke() {
m_pCurStates->m_ColorState.SetStrokeColor(pCS, values, 4);
}
void CPDF_StreamContentParser::Handle_LineTo() {
- REQUIRE_PARAMS(2);
+ if (m_ParamCount != 2)
+ return;
+
if (m_Options.m_bTextOnly) {
return;
}
AddPathPoint(GetNumber(1), GetNumber(0), FXPT_LINETO);
}
void CPDF_StreamContentParser::Handle_MoveTo() {
- REQUIRE_PARAMS(2);
+ if (m_ParamCount != 2)
+ return;
+
if (m_Options.m_bTextOnly) {
m_pSyntax->SkipPathObject();
return;
@@ -970,7 +970,9 @@ void CPDF_StreamContentParser::AddPathRect(FX_FLOAT x,
AddPathPoint(x, y, FXPT_LINETO | FXPT_CLOSEFIGURE);
}
void CPDF_StreamContentParser::Handle_SetRGBColor_Fill() {
- REQUIRE_PARAMS(3);
+ if (m_ParamCount != 3)
+ return;
+
FX_FLOAT values[3];
for (int i = 0; i < 3; i++) {
values[i] = GetNumber(2 - i);
@@ -979,7 +981,9 @@ void CPDF_StreamContentParser::Handle_SetRGBColor_Fill() {
m_pCurStates->m_ColorState.SetFillColor(pCS, values, 3);
}
void CPDF_StreamContentParser::Handle_SetRGBColor_Stroke() {
- REQUIRE_PARAMS(3);
+ if (m_ParamCount != 3)
+ return;
+
FX_FLOAT values[3];
for (int i = 0; i < 3; i++) {
values[i] = GetNumber(2 - i);
@@ -1341,7 +1345,7 @@ void CPDF_StreamContentParser::Handle_ShowText_Positioning() {
FXSYS_Mul(pArray->GetNumber(i),
m_pCurStates->m_TextState.GetFontSize()) /
1000;
- };
+ }
return;
}
CFX_ByteString* pStrs = new CFX_ByteString[nsegs];
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-02 21:38:18 +0000