diff options
author | 2013-07-10 23:17:31 +0000 | |
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committer | 2013-07-10 23:17:31 +0000 | |
commit | 951d6532de49003cd5a43f57caf91dd6d3efc33e (patch) | |
tree | 4b25609f2b94e8a117c422373dfcd4bf2e80536e /experimental/PdfViewer/pdfparser/native/SkPdfNativeTokenizer.cpp | |
parent | 432640ae0b9f4bc40e3447651ff5be0cd2be6b11 (diff) |
pdfviewer: more load references dinamically plumming
Review URL: https://codereview.chromium.org/18536014
git-svn-id: http://skia.googlecode.com/svn/trunk@9988 2bbb7eff-a529-9590-31e7-b0007b416f81
Diffstat (limited to 'experimental/PdfViewer/pdfparser/native/SkPdfNativeTokenizer.cpp')
-rw-r--r-- | experimental/PdfViewer/pdfparser/native/SkPdfNativeTokenizer.cpp | 32 |
1 files changed, 16 insertions, 16 deletions
diff --git a/experimental/PdfViewer/pdfparser/native/SkPdfNativeTokenizer.cpp b/experimental/PdfViewer/pdfparser/native/SkPdfNativeTokenizer.cpp index fc3e0b94ed..128813297a 100644 --- a/experimental/PdfViewer/pdfparser/native/SkPdfNativeTokenizer.cpp +++ b/experimental/PdfViewer/pdfparser/native/SkPdfNativeTokenizer.cpp @@ -40,7 +40,7 @@ static unsigned char* endOfPdfToken(unsigned char* start, unsigned char* end) { } // last elem has to be ] -static unsigned char* readArray(unsigned char* start, unsigned char* end, SkPdfObject* array, SkPdfAllocator* allocator) { +static unsigned char* readArray(unsigned char* start, unsigned char* end, SkPdfObject* array, SkPdfAllocator* allocator, SkNativeParsedPDF* doc) { while (start < end) { // skip white spaces start = skipPdfWhiteSpaces(start, end); @@ -57,7 +57,7 @@ static unsigned char* readArray(unsigned char* start, unsigned char* end, SkPdfO } SkPdfObject* newObj = allocator->allocObject(); - start = nextObject(start, end, newObj, allocator); + start = nextObject(start, end, newObj, allocator, doc); // TODO(edisonn): perf/memory: put the variables on the stack, and flush them on the array only when // we are sure they are not references! if (newObj->isKeywordReference() && array->size() >= 2 && array->objAtAIndex(array->size() - 1)->isInteger() && array->objAtAIndex(array->size() - 2)->isInteger()) { @@ -443,7 +443,7 @@ and it could get worse, with multiple object like this // right now implement the silly algorithm that assumes endstream is finishing the stream -static unsigned char* readStream(unsigned char* start, unsigned char* end, SkPdfObject* dict) { +static unsigned char* readStream(unsigned char* start, unsigned char* end, SkPdfObject* dict, SkNativeParsedPDF* doc) { start = skipPdfWhiteSpaces(start, end); if (!(start[0] == 's' && start[1] == 't' && start[2] == 'r' && start[3] == 'e' && start[4] == 'a' && start[5] == 'm')) { // no stream. return. @@ -462,8 +462,8 @@ static unsigned char* readStream(unsigned char* start, unsigned char* end, SkPdf int64_t length = -1; // TODO(edisonn): very basic implementation - if (stream->has_Length() && stream->Length(NULL) > 0) { - length = stream->Length(NULL); + if (stream->has_Length() && stream->Length(doc) > 0) { + length = stream->Length(doc); } // TODO(edisonn): laod external streams @@ -504,7 +504,7 @@ static unsigned char* readStream(unsigned char* start, unsigned char* end, SkPdf return start; } -static unsigned char* readDictionary(unsigned char* start, unsigned char* end, SkPdfObject* dict, SkPdfAllocator* allocator) { +static unsigned char* readDictionary(unsigned char* start, unsigned char* end, SkPdfObject* dict, SkPdfAllocator* allocator, SkNativeParsedPDF* doc) { SkPdfObject::makeEmptyDictionary(dict); start = skipPdfWhiteSpaces(start, end); @@ -518,7 +518,7 @@ static unsigned char* readDictionary(unsigned char* start, unsigned char* end, S if (start < end) { SkPdfObject* value = allocator->allocObject(); - start = nextObject(start, end, value, allocator); + start = nextObject(start, end, value, allocator, doc); start = skipPdfWhiteSpaces(start, end); @@ -526,10 +526,10 @@ static unsigned char* readDictionary(unsigned char* start, unsigned char* end, S // seems we have an indirect reference if (isPdfDigit(*start)) { SkPdfObject generation; - start = nextObject(start, end, &generation, allocator); + start = nextObject(start, end, &generation, allocator, doc); SkPdfObject keywordR; - start = nextObject(start, end, &keywordR, allocator); + start = nextObject(start, end, &keywordR, allocator, doc); if (value->isInteger() && generation.isInteger() && keywordR.isKeywordReference()) { int64_t id = value->intValue(); @@ -566,12 +566,12 @@ static unsigned char* readDictionary(unsigned char* start, unsigned char* end, S // TODO(edisonn): read stream ... put dict and stream in a struct, and have a pointer to struct ... // or alocate 2 objects, and if there is no stream, free it to be used by someone else? or just leave it ? - start = readStream(start, end, dict); + start = readStream(start, end, dict, doc); return start; } -unsigned char* nextObject(unsigned char* start, unsigned char* end, SkPdfObject* token, SkPdfAllocator* allocator) { +unsigned char* nextObject(unsigned char* start, unsigned char* end, SkPdfObject* token, SkPdfAllocator* allocator, SkNativeParsedPDF* doc) { unsigned char* current; // skip white spaces @@ -592,7 +592,7 @@ unsigned char* nextObject(unsigned char* start, unsigned char* end, SkPdfObject* case kOpenedSquareBracket_PdfDelimiter: *start = '\0'; SkPdfObject::makeEmptyArray(token); - return readArray(current, end, token, allocator); + return readArray(current, end, token, allocator, doc); case kOpenedRoundBracket_PdfDelimiter: *start = '\0'; @@ -602,7 +602,7 @@ unsigned char* nextObject(unsigned char* start, unsigned char* end, SkPdfObject* *start = '\0'; if (end > start + 1 && start[1] == kOpenedInequityBracket_PdfDelimiter) { // TODO(edisonn): pass here the length somehow? - return readDictionary(start + 2, end, token, allocator); // skip << + return readDictionary(start + 2, end, token, allocator, doc); // skip << } else { return readHexString(start + 1, end, token); // skip < } @@ -678,7 +678,7 @@ SkPdfObject* SkPdfAllocator::allocObject() { } // TODO(edisonn): perf: do no copy the buffers, but use them, and mark cache the result, so there is no need of a second pass -SkPdfNativeTokenizer::SkPdfNativeTokenizer(SkPdfObject* objWithStream, const SkPdfMapper* mapper, SkPdfAllocator* allocator) : fMapper(mapper), fAllocator(allocator), fUncompressedStream(NULL), fUncompressedStreamEnd(NULL), fEmpty(false), fHasPutBack(false) { +SkPdfNativeTokenizer::SkPdfNativeTokenizer(SkPdfObject* objWithStream, const SkPdfMapper* mapper, SkPdfAllocator* allocator, SkNativeParsedPDF* doc) : fDoc(doc), fMapper(mapper), fAllocator(allocator), fUncompressedStream(NULL), fUncompressedStreamEnd(NULL), fEmpty(false), fHasPutBack(false) { unsigned char* buffer = NULL; size_t len = 0; objWithStream->GetFilteredStreamRef(&buffer, &len, fAllocator); @@ -692,7 +692,7 @@ SkPdfNativeTokenizer::SkPdfNativeTokenizer(SkPdfObject* objWithStream, const SkP memcpy(fUncompressedStream, buffer, len); } -SkPdfNativeTokenizer::SkPdfNativeTokenizer(unsigned char* buffer, int len, const SkPdfMapper* mapper, SkPdfAllocator* allocator) : fMapper(mapper), fAllocator(allocator), fEmpty(false), fHasPutBack(false) { +SkPdfNativeTokenizer::SkPdfNativeTokenizer(unsigned char* buffer, int len, const SkPdfMapper* mapper, SkPdfAllocator* allocator, SkNativeParsedPDF* doc) : fDoc(doc), fMapper(mapper), fAllocator(allocator), fEmpty(false), fHasPutBack(false) { // TODO(edisonn): hack, find end of object char* endobj = strstr((char*)buffer, "endobj"); if (endobj) { @@ -716,7 +716,7 @@ bool SkPdfNativeTokenizer::readTokenCore(PdfToken* token) { } SkPdfObject obj; - fUncompressedStream = nextObject(fUncompressedStream, fUncompressedStreamEnd, &obj, fAllocator); + fUncompressedStream = nextObject(fUncompressedStream, fUncompressedStreamEnd, &obj, fAllocator, fDoc); // If it is a keyword, we will only get the pointer of the string if (obj.type() == SkPdfObject::kKeyword_PdfObjectType) { |