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-rw-r--r--core/fxcodec/jbig2/JBig2_SddProc.cpp26
1 files changed, 12 insertions, 14 deletions
diff --git a/core/fxcodec/jbig2/JBig2_SddProc.cpp b/core/fxcodec/jbig2/JBig2_SddProc.cpp
index 43768bd823..ee0c0f37f3 100644
--- a/core/fxcodec/jbig2/JBig2_SddProc.cpp
+++ b/core/fxcodec/jbig2/JBig2_SddProc.cpp
@@ -310,25 +310,23 @@ std::unique_ptr<CJBig2_SymbolDict> CJBig2_SDDProc::decode_Huffman(
HCFIRSTSYM = NSYMSDECODED;
for (;;) {
nVal = pHuffmanDecoder->decodeAValue(SDHUFFDW, &DW);
- if (nVal == JBIG2_OOB) {
+ if (nVal == JBIG2_OOB)
break;
- } else if (nVal != 0) {
+ if (nVal != 0)
+ return nullptr;
+ if (NSYMSDECODED >= SDNUMNEWSYMS)
return nullptr;
- } else {
- if (NSYMSDECODED >= SDNUMNEWSYMS)
- return nullptr;
- SYMWIDTH = SYMWIDTH + DW;
- if ((int)SYMWIDTH < 0 || (int)SYMWIDTH > JBIG2_MAX_IMAGE_SIZE) {
- return nullptr;
- } else if (HCHEIGHT == 0 || SYMWIDTH == 0) {
- TOTWIDTH = TOTWIDTH + SYMWIDTH;
- SDNEWSYMS[NSYMSDECODED] = nullptr;
- NSYMSDECODED = NSYMSDECODED + 1;
- continue;
- }
+ SYMWIDTH = SYMWIDTH + DW;
+ if ((int)SYMWIDTH < 0 || (int)SYMWIDTH > JBIG2_MAX_IMAGE_SIZE)
+ return nullptr;
+ if (HCHEIGHT == 0 || SYMWIDTH == 0) {
TOTWIDTH = TOTWIDTH + SYMWIDTH;
+ SDNEWSYMS[NSYMSDECODED] = nullptr;
+ NSYMSDECODED = NSYMSDECODED + 1;
+ continue;
}
+ TOTWIDTH = TOTWIDTH + SYMWIDTH;
if (SDREFAGG == 1) {
if (pHuffmanDecoder->decodeAValue(SDHUFFAGGINST, (int*)&REFAGGNINST) !=
0) {