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core: avoid function type cast, make happy UBSAN

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oss-fuzz: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14115
pull/14779/head
Alexander Alekhin 6 years ago
parent 11b020b9f9
commit d3d13c41c4
3 changed files with 43 additions and 35 deletions
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  1. 4
      modules/core/src/convert.dispatch.cpp
  2. 60
      modules/core/src/convert.simd.hpp
  3. 14
      modules/core/src/convert_scale.simd.hpp

4
modules/core/src/convert.dispatch.cpp
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@ -244,12 +244,12 @@ void convertFp16(InputArray _src, OutputArray _dst)
}
else
ddepth = CV_16S;
func = (BinaryFunc)getConvertFunc(CV_32F, CV_16F);
func = getConvertFunc(CV_32F, CV_16F);
break;
case CV_16S:
case CV_16F:
ddepth = CV_32F;
func = (BinaryFunc)getConvertFunc(CV_16F, CV_32F);
func = getConvertFunc(CV_16F, CV_32F);
break;
default:
CV_Error(Error::StsUnsupportedFormat, "Unsupported input depth");

60
modules/core/src/convert.simd.hpp
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@ -166,10 +166,12 @@ static void cvtCopy( const uchar* src, size_t sstep,
}
#define DEF_CVT_FUNC(suffix, cvtfunc, _Ts, _Td, _Twvec) \
static void cvt##suffix(const _Ts* src, size_t sstep, uchar*, size_t, \
_Td* dst, size_t dstep, Size size, void*) \
static void cvt##suffix(const uchar* src_, size_t sstep, const uchar*, size_t, \
uchar* dst_, size_t dstep, Size size, void*) \
{ \
CV_INSTRUMENT_REGION(); \
const _Ts* src = (const _Ts*)src_; \
_Td* dst = (_Td*)dst_; \
cvtfunc<_Ts, _Td, _Twvec>(src, sstep, dst, dstep, size); \
}
@ -255,16 +257,16 @@ DEF_CVT_FUNC(16f64f, cvt1_, float16_t, double, v_float32)
///////////// "conversion" w/o conversion ///////////////
static void cvt8u(const uchar* src, size_t sstep, uchar*, size_t, uchar* dst, size_t dstep, Size size, void*)
static void cvt8u(const uchar* src, size_t sstep, const uchar*, size_t, uchar* dst, size_t dstep, Size size, void*)
{ CV_INSTRUMENT_REGION(); cvtCopy(src, sstep, dst, dstep, size, 1); }
static void cvt16u(const ushort* src, size_t sstep, uchar*, size_t, ushort* dst, size_t dstep, Size size, void*)
static void cvt16u(const uchar* src, size_t sstep, const uchar*, size_t, uchar* dst, size_t dstep, Size size, void*)
{ CV_INSTRUMENT_REGION(); cvtCopy((const uchar*)src, sstep, (uchar*)dst, dstep, size, 2); }
static void cvt32s(const int* src, size_t sstep, uchar*, size_t, int* dst, size_t dstep, Size size, void*)
static void cvt32s(const uchar* src, size_t sstep, const uchar*, size_t, uchar* dst, size_t dstep, Size size, void*)
{ CV_INSTRUMENT_REGION(); cvtCopy((const uchar*)src, sstep, (uchar*)dst, dstep, size, 4); }
static void cvt64s(const int64* src, size_t sstep, uchar*, size_t, int64* dst, size_t dstep, Size size, void*)
static void cvt64s(const uchar* src, size_t sstep, const uchar*, size_t, uchar* dst, size_t dstep, Size size, void*)
{ CV_INSTRUMENT_REGION(); cvtCopy((const uchar*)src, sstep, (uchar*)dst, dstep, size, 8); }
@ -368,43 +370,43 @@ BinaryFunc getConvertFunc(int sdepth, int ddepth)
static BinaryFunc cvtTab[][8] =
{
{
(BinaryFunc)(cvt8u), (BinaryFunc)GET_OPTIMIZED(cvt8s8u), (BinaryFunc)GET_OPTIMIZED(cvt16u8u),
(BinaryFunc)GET_OPTIMIZED(cvt16s8u), (BinaryFunc)GET_OPTIMIZED(cvt32s8u), (BinaryFunc)GET_OPTIMIZED(cvt32f8u),
(BinaryFunc)GET_OPTIMIZED(cvt64f8u), (BinaryFunc)(cvt16f8u)
(cvt8u), (cvt8s8u), (cvt16u8u),
(cvt16s8u), (cvt32s8u), (cvt32f8u),
(cvt64f8u), (cvt16f8u)
},
{
(BinaryFunc)GET_OPTIMIZED(cvt8u8s), (BinaryFunc)cvt8u, (BinaryFunc)GET_OPTIMIZED(cvt16u8s),
(BinaryFunc)GET_OPTIMIZED(cvt16s8s), (BinaryFunc)GET_OPTIMIZED(cvt32s8s), (BinaryFunc)GET_OPTIMIZED(cvt32f8s),
(BinaryFunc)GET_OPTIMIZED(cvt64f8s), (BinaryFunc)(cvt16f8s)
(cvt8u8s), cvt8u, (cvt16u8s),
(cvt16s8s), (cvt32s8s), (cvt32f8s),
(cvt64f8s), (cvt16f8s)
},
{
(BinaryFunc)GET_OPTIMIZED(cvt8u16u), (BinaryFunc)GET_OPTIMIZED(cvt8s16u), (BinaryFunc)cvt16u,
(BinaryFunc)GET_OPTIMIZED(cvt16s16u), (BinaryFunc)GET_OPTIMIZED(cvt32s16u), (BinaryFunc)GET_OPTIMIZED(cvt32f16u),
(BinaryFunc)GET_OPTIMIZED(cvt64f16u), (BinaryFunc)(cvt16f16u)
(cvt8u16u), (cvt8s16u), cvt16u,
(cvt16s16u), (cvt32s16u), (cvt32f16u),
(cvt64f16u), (cvt16f16u)
},
{
(BinaryFunc)GET_OPTIMIZED(cvt8u16s), (BinaryFunc)GET_OPTIMIZED(cvt8s16s), (BinaryFunc)GET_OPTIMIZED(cvt16u16s),
(BinaryFunc)cvt16u, (BinaryFunc)GET_OPTIMIZED(cvt32s16s), (BinaryFunc)GET_OPTIMIZED(cvt32f16s),
(BinaryFunc)GET_OPTIMIZED(cvt64f16s), (BinaryFunc)(cvt16f16s)
(cvt8u16s), (cvt8s16s), (cvt16u16s),
cvt16u, (cvt32s16s), (cvt32f16s),
(cvt64f16s), (cvt16f16s)
},
{
(BinaryFunc)GET_OPTIMIZED(cvt8u32s), (BinaryFunc)GET_OPTIMIZED(cvt8s32s), (BinaryFunc)GET_OPTIMIZED(cvt16u32s),
(BinaryFunc)GET_OPTIMIZED(cvt16s32s), (BinaryFunc)cvt32s, (BinaryFunc)GET_OPTIMIZED(cvt32f32s),
(BinaryFunc)GET_OPTIMIZED(cvt64f32s), (BinaryFunc)(cvt16f32s)
(cvt8u32s), (cvt8s32s), (cvt16u32s),
(cvt16s32s), cvt32s, (cvt32f32s),
(cvt64f32s), (cvt16f32s)
},
{
(BinaryFunc)GET_OPTIMIZED(cvt8u32f), (BinaryFunc)GET_OPTIMIZED(cvt8s32f), (BinaryFunc)GET_OPTIMIZED(cvt16u32f),
(BinaryFunc)GET_OPTIMIZED(cvt16s32f), (BinaryFunc)GET_OPTIMIZED(cvt32s32f), (BinaryFunc)cvt32s,
(BinaryFunc)GET_OPTIMIZED(cvt64f32f), (BinaryFunc)(cvt16f32f)
(cvt8u32f), (cvt8s32f), (cvt16u32f),
(cvt16s32f), (cvt32s32f), cvt32s,
(cvt64f32f), (cvt16f32f)
},
{
(BinaryFunc)GET_OPTIMIZED(cvt8u64f), (BinaryFunc)GET_OPTIMIZED(cvt8s64f), (BinaryFunc)GET_OPTIMIZED(cvt16u64f),
(BinaryFunc)GET_OPTIMIZED(cvt16s64f), (BinaryFunc)GET_OPTIMIZED(cvt32s64f), (BinaryFunc)GET_OPTIMIZED(cvt32f64f),
(BinaryFunc)(cvt64s), (BinaryFunc)(cvt16f64f)
(cvt8u64f), (cvt8s64f), (cvt16u64f),
(cvt16s64f), (cvt32s64f), (cvt32f64f),
(cvt64s), (cvt16f64f)
},
{
(BinaryFunc)(cvt8u16f), (BinaryFunc)(cvt8s16f), (BinaryFunc)(cvt16u16f), (BinaryFunc)(cvt16s16f),
(BinaryFunc)(cvt32s16f), (BinaryFunc)(cvt32f16f), (BinaryFunc)(cvt64f16f), (BinaryFunc)(cvt16u)
(cvt8u16f), (cvt8s16f), (cvt16u16f), (cvt16s16f),
(cvt32s16f), (cvt32f16f), (cvt64f16f), (cvt16u)
}
};
return cvtTab[CV_MAT_DEPTH(ddepth)][CV_MAT_DEPTH(sdepth)];

14
modules/core/src/convert_scale.simd.hpp
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@ -197,17 +197,23 @@ cvt_64f( const _Ts* src, size_t sstep, _Td* dst, size_t dstep,
//==================================================================================================
#define DEF_CVT_SCALE_ABS_FUNC(suffix, cvt, stype, dtype, wtype) \
static void cvtScaleAbs##suffix( const stype* src, size_t sstep, const uchar*, size_t, \
dtype* dst, size_t dstep, Size size, double* scale) \
static void cvtScaleAbs##suffix( const uchar* src_, size_t sstep, const uchar*, size_t, \
uchar* dst_, size_t dstep, Size size, void* scale_) \
{ \
const stype* src = (const stype*)src_; \
dtype* dst = (dtype*)dst_; \
double* scale = (double*)scale_; \
cvt(src, sstep, dst, dstep, size, (wtype)scale[0], (wtype)scale[1]); \
}
#define DEF_CVT_SCALE_FUNC(suffix, cvt, stype, dtype, wtype) \
static void cvtScale##suffix( const stype* src, size_t sstep, const uchar*, size_t, \
dtype* dst, size_t dstep, Size size, double* scale) \
static void cvtScale##suffix( const uchar* src_, size_t sstep, const uchar*, size_t, \
uchar* dst_, size_t dstep, Size size, void* scale_) \
{ \
const stype* src = (const stype*)src_; \
dtype* dst = (dtype*)dst_; \
double* scale = (double*)scale_; \
cvt(src, sstep, dst, dstep, size, (wtype)scale[0], (wtype)scale[1]); \
}

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