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-rw-r--r--core/fxcodec/jbig2/JBig2_PddProc.cpp23
1 files changed, 7 insertions, 16 deletions
diff --git a/core/fxcodec/jbig2/JBig2_PddProc.cpp b/core/fxcodec/jbig2/JBig2_PddProc.cpp
index bb61088886..82364b6ae2 100644
--- a/core/fxcodec/jbig2/JBig2_PddProc.cpp
+++ b/core/fxcodec/jbig2/JBig2_PddProc.cpp
@@ -17,10 +17,6 @@ std::unique_ptr<CJBig2_PatternDict> CJBig2_PDDProc::DecodeArith(
CJBig2_ArithDecoder* pArithDecoder,
JBig2ArithCtx* gbContext,
PauseIndicatorIface* pPause) {
- uint32_t GRAY;
- std::unique_ptr<CJBig2_Image> BHDC;
- auto pDict = pdfium::MakeUnique<CJBig2_PatternDict>(GRAYMAX + 1);
-
auto pGRD = pdfium::MakeUnique<CJBig2_GRDProc>();
pGRD->MMR = HDMMR;
pGRD->GBW = (GRAYMAX + 1) * HDPW;
@@ -28,7 +24,7 @@ std::unique_ptr<CJBig2_PatternDict> CJBig2_PDDProc::DecodeArith(
pGRD->GBTEMPLATE = HDTEMPLATE;
pGRD->TPGDON = 0;
pGRD->USESKIP = 0;
- pGRD->GBAT[0] = -(int32_t)HDPW;
+ pGRD->GBAT[0] = -1 * static_cast<int32_t>(HDPW);
pGRD->GBAT[1] = 0;
if (pGRD->GBTEMPLATE == 0) {
pGRD->GBAT[2] = -3;
@@ -38,6 +34,8 @@ std::unique_ptr<CJBig2_PatternDict> CJBig2_PDDProc::DecodeArith(
pGRD->GBAT[6] = -2;
pGRD->GBAT[7] = -2;
}
+
+ std::unique_ptr<CJBig2_Image> BHDC;
CJBig2_GRDProc::ProgressiveArithDecodeState state;
state.pImage = &BHDC;
state.pArithDecoder = pArithDecoder;
@@ -51,20 +49,15 @@ std::unique_ptr<CJBig2_PatternDict> CJBig2_PDDProc::DecodeArith(
if (!BHDC)
return nullptr;
- GRAY = 0;
- while (GRAY <= GRAYMAX) {
+ auto pDict = pdfium::MakeUnique<CJBig2_PatternDict>(GRAYMAX + 1);
+ for (uint32_t GRAY = 0; GRAY <= GRAYMAX; ++GRAY)
pDict->HDPATS[GRAY] = BHDC->SubImage(HDPW * GRAY, 0, HDPW, HDPH);
- GRAY = GRAY + 1;
- }
return pDict;
}
std::unique_ptr<CJBig2_PatternDict> CJBig2_PDDProc::DecodeMMR(
CJBig2_BitStream* pStream) {
- uint32_t GRAY;
std::unique_ptr<CJBig2_Image> BHDC;
- auto pDict = pdfium::MakeUnique<CJBig2_PatternDict>(GRAYMAX + 1);
-
auto pGRD = pdfium::MakeUnique<CJBig2_GRDProc>();
pGRD->MMR = HDMMR;
pGRD->GBW = (GRAYMAX + 1) * HDPW;
@@ -73,10 +66,8 @@ std::unique_ptr<CJBig2_PatternDict> CJBig2_PDDProc::DecodeMMR(
if (!BHDC)
return nullptr;
- GRAY = 0;
- while (GRAY <= GRAYMAX) {
+ auto pDict = pdfium::MakeUnique<CJBig2_PatternDict>(GRAYMAX + 1);
+ for (uint32_t GRAY = 0; GRAY <= GRAYMAX; ++GRAY)
pDict->HDPATS[GRAY] = BHDC->SubImage(HDPW * GRAY, 0, HDPW, HDPH);
- GRAY = GRAY + 1;
- }
return pDict;
}