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| author | Tom Sepez <tsepez@chromium.org> | 2015-10-23 14:14:26 -0700 |
|---|---|---|
| committer | Tom Sepez <tsepez@chromium.org> | 2015-10-23 14:14:26 -0700 |
| commit | 924b7e968e3aa19e9e916f8437acbf85d92df40e (patch) | |
| tree | a90fc7caa1153605b6dfcb504bf08e1a8ec4f2ab /core | |
| parent | e00d731e207b0f9c476ff7ee2e20a55185fb8861 (diff) | |
| download | pdfium-924b7e968e3aa19e9e916f8437acbf85d92df40e.tar.xz | |
XFA: make JBig2_HuffmanTable.cpp match master
Includes one array bounds fix.
R=thestig@chromium.org
Review URL: https://codereview.chromium.org/1412583003 .
Diffstat (limited to 'core')
| -rw-r--r-- | core/src/fxcodec/jbig2/JBig2_HuffmanTable.cpp | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/core/src/fxcodec/jbig2/JBig2_HuffmanTable.cpp b/core/src/fxcodec/jbig2/JBig2_HuffmanTable.cpp index 4effbfadef..9d7cd2aee1 100644 --- a/core/src/fxcodec/jbig2/JBig2_HuffmanTable.cpp +++ b/core/src/fxcodec/jbig2/JBig2_HuffmanTable.cpp @@ -146,11 +146,8 @@ int CJBig2_HuffmanTable::parseFromCodedBuffer(CJBig2_BitStream* pStream) { } CODES = FX_Alloc(int, NTEMP); int LENMAX = 0; - for (FX_DWORD i = 0; i < NTEMP; ++i) { - if (PREFLEN[i] > LENMAX) { - LENMAX = PREFLEN[i]; - } - } + for (FX_DWORD i = 0; i < NTEMP; ++i) + LENMAX = std::max(PREFLEN[i], LENMAX); std::vector<int> LENCOUNT(LENMAX + 1); for (FX_DWORD i = 0; i < NTEMP; ++i) @@ -159,7 +156,7 @@ int CJBig2_HuffmanTable::parseFromCodedBuffer(CJBig2_BitStream* pStream) { std::vector<int> FIRSTCODE(LENMAX + 1); FIRSTCODE[0] = 0; - for (int i = 0; i <= LENMAX; ++i) { + for (int i = 1; i <= LENMAX; ++i) { FIRSTCODE[i] = (FIRSTCODE[i - 1] + LENCOUNT[i - 1]) << 1; int CURCODE = FIRSTCODE[i]; for (FX_DWORD j = 0; j < NTEMP; ++j) { |