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-rw-r--r--poppler/Stream.cc133
1 files changed, 47 insertions, 86 deletions
diff --git a/poppler/Stream.cc b/poppler/Stream.cc
index cb91ca5c..7b87912b 100644
--- a/poppler/Stream.cc
+++ b/poppler/Stream.cc
@@ -175,39 +175,33 @@ Stream *Stream::addFilters(Dict *dict, int recursion) {
int i;
str = this;
- dict->lookup("Filter", &obj, recursion);
+ obj = dict->lookup("Filter", recursion);
if (obj.isNull()) {
- obj.free();
- dict->lookup("F", &obj, recursion);
+ obj = dict->lookup("F", recursion);
}
- dict->lookup("DecodeParms", &params, recursion);
+ params = dict->lookup("DecodeParms", recursion);
if (params.isNull()) {
- params.free();
- dict->lookup("DP", &params, recursion);
+ params = dict->lookup("DP", recursion);
}
if (obj.isName()) {
str = makeFilter(obj.getName(), str, &params, recursion, dict);
} else if (obj.isArray()) {
for (i = 0; i < obj.arrayGetLength(); ++i) {
- obj.arrayGet(i, &obj2, recursion);
+ obj2 = obj.arrayGet(i, recursion);
if (params.isArray())
- params.arrayGet(i, &params2, recursion);
+ params2 = params.arrayGet(i, recursion);
else
- params2.initNull();
+ params2.setToNull();
if (obj2.isName()) {
str = makeFilter(obj2.getName(), str, &params2, recursion);
} else {
error(errSyntaxError, getPos(), "Bad filter name");
str = new EOFStream(str);
}
- obj2.free();
- params2.free();
}
} else if (!obj.isNull()) {
error(errSyntaxError, getPos(), "Bad 'Filter' attribute in stream");
}
- obj.free();
- params.free();
return str;
}
@@ -234,26 +228,21 @@ Stream *Stream::makeFilter(char *name, Stream *str, Object *params, int recursio
bits = 8;
early = 1;
if (params->isDict()) {
- params->dictLookup("Predictor", &obj, recursion);
+ obj = params->dictLookup("Predictor", recursion);
if (obj.isInt())
pred = obj.getInt();
- obj.free();
- params->dictLookup("Columns", &obj, recursion);
+ obj = params->dictLookup("Columns", recursion);
if (obj.isInt())
columns = obj.getInt();
- obj.free();
- params->dictLookup("Colors", &obj, recursion);
+ obj = params->dictLookup("Colors", recursion);
if (obj.isInt())
colors = obj.getInt();
- obj.free();
- params->dictLookup("BitsPerComponent", &obj, recursion);
+ obj = params->dictLookup("BitsPerComponent", recursion);
if (obj.isInt())
bits = obj.getInt();
- obj.free();
- params->dictLookup("EarlyChange", &obj, recursion);
+ obj = params->dictLookup("EarlyChange", recursion);
if (obj.isInt())
early = obj.getInt();
- obj.free();
}
str = new LZWStream(str, pred, columns, colors, bits, early);
} else if (!strcmp(name, "RunLengthDecode") || !strcmp(name, "RL")) {
@@ -267,51 +256,44 @@ Stream *Stream::makeFilter(char *name, Stream *str, Object *params, int recursio
endOfBlock = gTrue;
black = gFalse;
if (params->isDict()) {
- params->dictLookup("K", &obj, recursion);
+ obj = params->dictLookup("K", recursion);
if (obj.isInt()) {
encoding = obj.getInt();
}
- obj.free();
- params->dictLookup("EndOfLine", &obj, recursion);
+ obj = params->dictLookup("EndOfLine", recursion);
if (obj.isBool()) {
endOfLine = obj.getBool();
}
- obj.free();
- params->dictLookup("EncodedByteAlign", &obj, recursion);
+ obj = params->dictLookup("EncodedByteAlign", recursion);
if (obj.isBool()) {
byteAlign = obj.getBool();
}
- obj.free();
- params->dictLookup("Columns", &obj, recursion);
+ obj = params->dictLookup("Columns", recursion);
if (obj.isInt()) {
columns = obj.getInt();
}
- obj.free();
- params->dictLookup("Rows", &obj, recursion);
+ obj = params->dictLookup("Rows", recursion);
if (obj.isInt()) {
rows = obj.getInt();
}
- obj.free();
- params->dictLookup("EndOfBlock", &obj, recursion);
+ obj = params->dictLookup("EndOfBlock", recursion);
if (obj.isBool()) {
endOfBlock = obj.getBool();
}
- obj.free();
- params->dictLookup("BlackIs1", &obj, recursion);
+ obj = params->dictLookup("BlackIs1", recursion);
if (obj.isBool()) {
black = obj.getBool();
}
- obj.free();
}
str = new CCITTFaxStream(str, encoding, endOfLine, byteAlign,
columns, rows, endOfBlock, black);
} else if (!strcmp(name, "DCTDecode") || !strcmp(name, "DCT")) {
colorXform = -1;
if (params->isDict()) {
- if (params->dictLookup("ColorTransform", &obj, recursion)->isInt()) {
+ obj = params->dictLookup("ColorTransform", recursion);
+ if (obj.isInt()) {
colorXform = obj.getInt();
}
- obj.free();
}
str = new DCTStream(str, colorXform, dict, recursion);
} else if (!strcmp(name, "FlateDecode") || !strcmp(name, "Fl")) {
@@ -320,33 +302,27 @@ Stream *Stream::makeFilter(char *name, Stream *str, Object *params, int recursio
colors = 1;
bits = 8;
if (params->isDict()) {
- params->dictLookup("Predictor", &obj, recursion);
+ obj = params->dictLookup("Predictor", recursion);
if (obj.isInt())
pred = obj.getInt();
- obj.free();
- params->dictLookup("Columns", &obj, recursion);
+ obj = params->dictLookup("Columns", recursion);
if (obj.isInt())
columns = obj.getInt();
- obj.free();
- params->dictLookup("Colors", &obj, recursion);
+ obj = params->dictLookup("Colors", recursion);
if (obj.isInt())
colors = obj.getInt();
- obj.free();
- params->dictLookup("BitsPerComponent", &obj, recursion);
+ obj = params->dictLookup("BitsPerComponent", recursion);
if (obj.isInt())
bits = obj.getInt();
- obj.free();
}
str = new FlateStream(str, pred, columns, colors, bits);
} else if (!strcmp(name, "JBIG2Decode")) {
if (params->isDict()) {
XRef *xref = params->getDict()->getXRef();
- params->dictLookupNF("JBIG2Globals", &obj);
- obj.fetch(xref, &globals, recursion);
+ obj = params->dictLookupNF("JBIG2Globals");
+ globals = obj.fetch(xref, recursion);
}
str = new JBIG2Stream(str, &globals, &obj);
- globals.free();
- obj.free();
} else if (!strcmp(name, "JPXDecode")) {
str = new JPXStream(str);
} else if (!strcmp(name, "Crypt")) {
@@ -416,13 +392,12 @@ void FileOutStream::printf(const char *format, ...)
// BaseStream
//------------------------------------------------------------------------
-BaseStream::BaseStream(Object *dictA, Goffset lengthA) {
- dictA->shallowCopy(&dict);
+BaseStream::BaseStream(Object &&dictA, Goffset lengthA) {
+ dict = std::move(dictA);
length = lengthA;
}
BaseStream::~BaseStream() {
- dict.free();
}
//------------------------------------------------------------------------
@@ -771,8 +746,8 @@ GBool StreamPredictor::getNextLine() {
//------------------------------------------------------------------------
FileStream::FileStream(GooFile* fileA, Goffset startA, GBool limitedA,
- Goffset lengthA, Object *dictA):
- BaseStream(dictA, lengthA) {
+ Goffset lengthA, Object &&dictA):
+ BaseStream(std::move(dictA), lengthA) {
file = fileA;
offset = start = startA;
limited = limitedA;
@@ -788,16 +763,12 @@ FileStream::~FileStream() {
}
BaseStream *FileStream::copy() {
- Object dictRef;
- if (dict.isDict()) {
- dictRef.initDict(dict.getDict());
- }
- return new FileStream(file, start, limited, length, &dictRef);
+ return new FileStream(file, start, limited, length, dict.copy());
}
Stream *FileStream::makeSubStream(Goffset startA, GBool limitedA,
- Goffset lengthA, Object *dictA) {
- return new FileStream(file, startA, limitedA, lengthA, dictA);
+ Goffset lengthA, Object &&dictA) {
+ return new FileStream(file, startA, limitedA, lengthA, std::move(dictA));
}
void FileStream::reset() {
@@ -866,8 +837,8 @@ void FileStream::moveStart(Goffset delta) {
//------------------------------------------------------------------------
CachedFileStream::CachedFileStream(CachedFile *ccA, Goffset startA,
- GBool limitedA, Goffset lengthA, Object *dictA)
- : BaseStream(dictA, lengthA)
+ GBool limitedA, Goffset lengthA, Object &&dictA)
+ : BaseStream(std::move(dictA), lengthA)
{
cc = ccA;
start = startA;
@@ -886,20 +857,15 @@ CachedFileStream::~CachedFileStream()
}
BaseStream *CachedFileStream::copy() {
- Object dictRef;
- if (dict.isDict()) {
- dictRef.initDict(dict.getDict());
- }
-
cc->incRefCnt();
- return new CachedFileStream(cc, start, limited, length, &dictRef);
+ return new CachedFileStream(cc, start, limited, length, dict.copy());
}
Stream *CachedFileStream::makeSubStream(Goffset startA, GBool limitedA,
- Goffset lengthA, Object *dictA)
+ Goffset lengthA, Object &&dictA)
{
cc->incRefCnt();
- return new CachedFileStream(cc, startA, limitedA, lengthA, dictA);
+ return new CachedFileStream(cc, startA, limitedA, lengthA, std::move(dictA));
}
void CachedFileStream::reset()
@@ -974,8 +940,8 @@ void CachedFileStream::moveStart(Goffset delta)
// MemStream
//------------------------------------------------------------------------
-MemStream::MemStream(char *bufA, Goffset startA, Goffset lengthA, Object *dictA):
- BaseStream(dictA, lengthA) {
+MemStream::MemStream(char *bufA, Goffset startA, Goffset lengthA, Object &&dictA):
+ BaseStream(std::move(dictA), lengthA) {
buf = bufA;
start = startA;
length = lengthA;
@@ -991,16 +957,11 @@ MemStream::~MemStream() {
}
BaseStream *MemStream::copy() {
- Object dictRef;
- if (dict.isDict()) {
- dictRef.initDict(dict.getDict());
- }
-
- return new MemStream(buf, start, length, &dictRef);
+ return new MemStream(buf, start, length, dict.copy());
}
Stream *MemStream::makeSubStream(Goffset startA, GBool limited,
- Goffset lengthA, Object *dictA) {
+ Goffset lengthA, Object &&dictA) {
MemStream *subStr;
Goffset newLength;
@@ -1009,7 +970,7 @@ Stream *MemStream::makeSubStream(Goffset startA, GBool limited,
} else {
newLength = lengthA;
}
- subStr = new MemStream(buf, startA, newLength, dictA);
+ subStr = new MemStream(buf, startA, newLength, std::move(dictA));
return subStr;
}
@@ -1062,9 +1023,9 @@ void MemStream::moveStart(Goffset delta) {
// EmbedStream
//------------------------------------------------------------------------
-EmbedStream::EmbedStream(Stream *strA, Object *dictA,
+EmbedStream::EmbedStream(Stream *strA, Object &&dictA,
GBool limitedA, Goffset lengthA):
- BaseStream(dictA, lengthA) {
+ BaseStream(std::move(dictA), lengthA) {
str = strA;
limited = limitedA;
length = lengthA;
@@ -1079,7 +1040,7 @@ BaseStream *EmbedStream::copy() {
}
Stream *EmbedStream::makeSubStream(Goffset start, GBool limitedA,
- Goffset lengthA, Object *dictA) {
+ Goffset lengthA, Object &&dictA) {
error(errInternal, -1, "Called makeSubStream() on EmbedStream");
return NULL;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-16 18:11:24 +0000