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fix possible segmentation fault error in winograd on x86

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This commit is contained in:
zihaomu 2023-01-09 13:40:04 +08:00
parent 9208dcb07c
commit 82616eec41
3 changed files with 10 additions and 4 deletions
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2
modules/dnn/src/layers/fast_convolution/fast_convolution.avx2.cpp
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@ -119,7 +119,7 @@ void convBlock_AVX2(int np, const float* a, const float* b, float* c, int ldc, b
void _fx_winograd_accum_f32(const float* inwptr, const float* wptr,
float* outbuf, int Cg, int iblock)
{
CV_Assert(_FX_WINO_IBLOCK == 6 && _FX_WINO_KBLOCK == 4);// && _FX_WINO_ATOM_F32 == 8);
CV_Assert(_FX_WINO_IBLOCK == 6 && _FX_WINO_KBLOCK == 4 && _FX_WINO_ATOM_F32 == 8);
if (iblock > 3)
{
for (int atom_id = 0; atom_id < _FX_WINO_NATOMS_F32; atom_id++,

8
modules/dnn/src/layers/fast_convolution/fast_convolution.cpp
View File

@ -105,6 +105,12 @@ Ptr<FastConv> initFastConv(
conv->conv_type = _FX_CONV_TYPE_GENERIC;
#endif
#if CV_TRY_AVX2
// Disabel Winograd when CV_TRY_AVX2 is true, but conv->useAVX2 is false.
if (conv->conv_type == _FX_CONV_TYPE_WINOGRAD3X3 && !conv->useAVX2)
conv->conv_type = _FX_CONV_TYPE_GENERIC;
#endif
Mat weightsMat = _weightsMat.getMat();
auto wShape = shape(weightsMat);
const size_t wstep = weightsMat.step1();
@ -257,7 +263,7 @@ Ptr<FastConv> initFastConv(
// we can always read MR elements starting from any valid index
{
int k = 0, nbias = K + VEC_ALIGN;
conv->biasBuf.reserve(nbias);
conv->biasBuf.resize(nbias);
float* biasBufPtr = conv->biasBuf.data();
for(; k < K; k++)
biasBufPtr[k] = srcBias ? srcBias[k] : 0.f;

4
modules/dnn/src/layers/fast_convolution/winograd_3x3s1_f63.cpp
View File

@ -22,7 +22,7 @@ _fx_winograd_accum_f32(const float* inwptr, const float* wptr,
float* outbuf, int Cg, int iblock)
{
#if CV_NEON && CV_NEON_AARCH64
CV_Assert(_FX_WINO_IBLOCK == 6 && _FX_WINO_KBLOCK == 4);
CV_Assert(_FX_WINO_IBLOCK == 6 && _FX_WINO_KBLOCK == 4 && _FX_WINO_ATOM_F32 == 4);
if (iblock > 3)
{
for (int atom_id = 0; atom_id < _FX_WINO_NATOMS_F32; atom_id++,
@ -144,7 +144,7 @@ _fx_winograd_accum_f32(const float* inwptr, const float* wptr,
}
}
#elif CV_SIMD128
CV_Assert(_FX_WINO_IBLOCK == 3 && _FX_WINO_KBLOCK == 4);
CV_Assert(_FX_WINO_IBLOCK == 3 && _FX_WINO_KBLOCK == 4 && _FX_WINO_ATOM_F32 == 4);
for (int atom_id = 0; atom_id < _FX_WINO_NATOMS_F32; atom_id++,
outbuf += _FX_WINO_ATOM_F32)
{