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loader/jpg: fix a sanitizer report.

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Bypass the operation involving a negative value shift.

../src/loaders/jpg/tvgJpgd.cpp:434:36: runtime error: left shift of negative value -5
This commit is contained in:
Hermet Park 2023-08-21 14:39:08 +09:00 • committed by Hermet Park
parent c2ca01a5c5
commit cd71c66703
1 changed files with 1 additions and 1 deletions
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src/loaders/jpg/tvgJpgd.cpp
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@ -431,7 +431,7 @@ struct Row<1>
{ {
static void idct(int* pTemp, const jpgd_block_t* pSrc) static void idct(int* pTemp, const jpgd_block_t* pSrc)
{ {
const int dcval = (pSrc[0] << PASS1_BITS); const int dcval = pSrc[0] * (pSrc[0] * (PASS1_BITS * 2));
pTemp[0] = dcval; pTemp[0] = dcval;
pTemp[1] = dcval; pTemp[1] = dcval;