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Fixed several cases of unaligned pointer cast

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This commit is contained in:
Maksim Shabunin 2024-11-28 19:20:14 +03:00
parent a5f8711ce1
commit c58b6bf11f
3 changed files with 22 additions and 6 deletions
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18
modules/core/src/stat.simd.hpp
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@ -48,12 +48,16 @@ int normHamming(const uchar* a, int n)
# if defined CV_POPCNT_U64
for(; i <= n - 8; i += 8)
{
result += (int)CV_POPCNT_U64(*(uint64*)(a + i));
uint64_t val;
std::memcpy(&val, a + i, sizeof(val));
result += (int)CV_POPCNT_U64(val);
}
# endif
for(; i <= n - 4; i += 4)
{
result += CV_POPCNT_U32(*(uint*)(a + i));
uint32_t val;
std::memcpy(&val, a + i, sizeof(val));
result += CV_POPCNT_U32(val);
}
}
#endif
@ -92,12 +96,18 @@ int normHamming(const uchar* a, const uchar* b, int n)
# if defined CV_POPCNT_U64
for(; i <= n - 8; i += 8)
{
result += (int)CV_POPCNT_U64(*(uint64*)(a + i) ^ *(uint64*)(b + i));
uint64_t val_a, val_b;
std::memcpy(&val_a, a + i, sizeof(val_a));
std::memcpy(&val_b, b + i, sizeof(val_b));
result += (int)CV_POPCNT_U64(val_a ^ val_b);
}
# endif
for(; i <= n - 4; i += 4)
{
result += CV_POPCNT_U32(*(uint*)(a + i) ^ *(uint*)(b + i));
uint32_t val_a, val_b;
std::memcpy(&val_a, a + i, sizeof(val_a));
std::memcpy(&val_b, b + i, sizeof(val_b));
result += (int)CV_POPCNT_U32(val_a ^ val_b);
}
}
#endif

6
modules/imgcodecs/src/utils.hpp
View File

@ -137,7 +137,11 @@ uchar* FillGrayRow1( uchar* data, uchar* indices, int len, uchar* palette );
CV_INLINE bool isBigEndian( void )
{
return (((const int*)"\0\x1\x2\x3\x4\x5\x6\x7")[0] & 255) != 0;
#ifdef WORDS_BIGENDIAN
return true;
#else
return false;
#endif
}
} // namespace

4
modules/imgproc/src/smooth.simd.hpp
View File

@ -1324,7 +1324,9 @@ void vlineSmooth3N<uint8_t, ufixedpoint16>(const ufixedpoint16* const * src, con
ufixedpoint32 val[] = { (m[0] + m[1] + m[2]) * ufixedpoint16((uint8_t)128) };
v_128_4 = vx_setall_s32(*((int32_t*)val));
}
v_int16 v_mul01 = v_reinterpret_as_s16(vx_setall_u32(*((uint32_t*)m)));
uint32_t val01;
std::memcpy(&val01, m, sizeof(val01));
v_int16 v_mul01 = v_reinterpret_as_s16(vx_setall_u32(val01));
v_int16 v_mul2 = v_reinterpret_as_s16(vx_setall_u16(*((uint16_t*)(m + 2))));
for (; i <= len - 4*VECSZ; i += 4*VECSZ)
{