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jpeg_loader: resolve the asan bug report.

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fix the invalid negative shift operations.

@Issue: https://github.com/Samsung/thorvg/issues/1172
This commit is contained in:
Hermet Park 2022-02-16 12:22:53 +09:00
parent 143cb83515
commit ccce0d7641
1 changed files with 7 additions and 7 deletions
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14
src/loaders/jpg/tvgJpgd.cpp
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@ -382,8 +382,8 @@ struct Row
const int tmp2 = z1 + MULTIPLY(z3, - FIX_1_847759065);
const int tmp3 = z1 + MULTIPLY(z2, FIX_0_765366865);
const int tmp0 = (ACCESS_COL(0) + ACCESS_COL(4)) << CONST_BITS;
const int tmp1 = (ACCESS_COL(0) - ACCESS_COL(4)) << CONST_BITS;
const int tmp0 = static_cast<unsigned int>(ACCESS_COL(0) + ACCESS_COL(4)) << CONST_BITS;
const int tmp1 = static_cast<unsigned int>(ACCESS_COL(0) - ACCESS_COL(4)) << CONST_BITS;
const int tmp10 = tmp0 + tmp3, tmp13 = tmp0 - tmp3, tmp11 = tmp1 + tmp2, tmp12 = tmp1 - tmp2;
@ -461,8 +461,8 @@ struct Col
const int tmp2 = z1 + MULTIPLY(z3, - FIX_1_847759065);
const int tmp3 = z1 + MULTIPLY(z2, FIX_0_765366865);
const int tmp0 = (ACCESS_ROW(0) + ACCESS_ROW(4)) << CONST_BITS;
const int tmp1 = (ACCESS_ROW(0) - ACCESS_ROW(4)) << CONST_BITS;
const int tmp0 = static_cast<unsigned int>(ACCESS_ROW(0) + ACCESS_ROW(4)) << CONST_BITS;
const int tmp1 = static_cast<unsigned int>(ACCESS_ROW(0) - ACCESS_ROW(4)) << CONST_BITS;
const int tmp10 = tmp0 + tmp3, tmp13 = tmp0 - tmp3, tmp11 = tmp1 + tmp2, tmp12 = tmp1 - tmp2;
@ -2557,7 +2557,7 @@ void jpeg_decoder::decode_block_dc_first(jpeg_decoder *pD, int component_id, int
s = JPGD_HUFF_EXTEND(r, s);
}
pD->m_last_dc_val[component_id] = (s += pD->m_last_dc_val[component_id]);
p[0] = static_cast<jpgd_block_t>(s << pD->m_successive_low);
p[0] = static_cast<jpgd_block_t>(static_cast<unsigned int>(s) << pD->m_successive_low);
}
@ -2588,7 +2588,7 @@ void jpeg_decoder::decode_block_ac_first(jpeg_decoder *pD, int component_id, int
if ((k += r) > 63) pD->stop_decoding(JPGD_DECODE_ERROR);
r = pD->get_bits_no_markers(s);
s = JPGD_HUFF_EXTEND(r, s);
p[g_ZAG[k]] = static_cast<jpgd_block_t>(s << pD->m_successive_low);
p[g_ZAG[k]] = static_cast<jpgd_block_t>(static_cast<unsigned int>(s) << pD->m_successive_low);
} else {
if (r == 15) {
if ((k += 15) > 63) pD->stop_decoding(JPGD_DECODE_ERROR);
@ -2607,7 +2607,7 @@ void jpeg_decoder::decode_block_ac_refine(jpeg_decoder *pD, int component_id, in
{
int s, k, r;
int p1 = 1 << pD->m_successive_low;
int m1 = (-1) << pD->m_successive_low;
int m1 = static_cast<unsigned int>(-1) << pD->m_successive_low;
jpgd_block_t *p = pD->coeff_buf_getp(pD->m_ac_coeffs[component_id], block_x, block_y);
JPGD_ASSERT(pD->m_spectral_end <= 63);