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cv::pyrUp

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This commit is contained in:
Ilya Lavrenov 2014-10-11 03:38:42 -07:00
parent 46faf592fc
commit 7e6fb668ed
1 changed files with 172 additions and 19 deletions
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191
modules/imgproc/src/pyramids.cpp
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@ -60,11 +60,16 @@ template<typename T, int shift> struct FltCast
rtype operator ()(type1 arg) const { return arg*(T)(1./(1 << shift)); }
};
template<typename T1, typename T2> struct NoVec
template<typename T1, typename T2> struct PyrDownNoVec
{
int operator()(T1**, T2*, int, int) const { return 0; }
};
template<typename T1, typename T2> struct PyrUpNoVec
{
int operator()(T1**, T2**, int, int) const { return 0; }
};
#if CV_SSE2
struct PyrDownVec_32s8u
@ -178,10 +183,13 @@ struct PyrDownVec_32f
}
};
typedef NoVec<int, ushort> PyrDownVec_32s16u;
typedef NoVec<int, short> PyrDownVec_32s16s;
typedef PyrDownNoVec<int, ushort> PyrDownVec_32s16u;
typedef PyrDownNoVec<int, short> PyrDownVec_32s16s;
typedef NoVec<float, float> PyrUpVec_32f;
typedef PyrUpNoVec<int, uchar> PyrUpVec_32s8u;
typedef PyrUpNoVec<int, short> PyrUpVec_32s16s;
typedef PyrUpNoVec<int, ushort> PyrUpVec_32s16u;
typedef PyrUpNoVec<float, float> PyrUpVec_32f;
#elif CV_NEON
@ -329,14 +337,156 @@ struct PyrDownVec_32f
}
};
struct PyrUpVec_32f
struct PyrUpVec_32s8u
{
int operator()(float** src, float* dst, int, int width) const
int operator()(int** src, uchar** dst, int, int width) const
{
int x = 0;
uchar *dst0 = dst[0], *dst1 = dst[1];
const uint *row0 = (uint *)src[0], *row1 = (uint *)src[1], *row2 = (uint *)src[2];
uint16x8_t v_delta = vdupq_n_u16(32);
for( ; x <= width - 16; x += 16 )
{
uint16x8_t v_r0 = vcombine_u16(vqmovn_u32(vld1q_u32(row0 + x)), vqmovn_u32(vld1q_u32(row0 + x + 4)));
uint16x8_t v_r1 = vcombine_u16(vqmovn_u32(vld1q_u32(row1 + x)), vqmovn_u32(vld1q_u32(row1 + x + 4)));
uint16x8_t v_r2 = vcombine_u16(vqmovn_u32(vld1q_u32(row2 + x)), vqmovn_u32(vld1q_u32(row2 + x + 4)));
uint16x8_t v_2r1 = vqaddq_u16(v_r1, v_r1), v_4r1 = vqaddq_u16(v_2r1, v_2r1);
uint16x8_t v_dst00 = vqaddq_u16(vqaddq_u16(v_r0, v_r2), vqaddq_u16(v_2r1, v_4r1));
uint16x8_t v_dst10 = vqshlq_n_u16(vqaddq_u16(v_r1, v_r2), 2);
v_r0 = vcombine_u16(vqmovn_u32(vld1q_u32(row0 + x + 8)), vqmovn_u32(vld1q_u32(row0 + x + 12)));
v_r1 = vcombine_u16(vqmovn_u32(vld1q_u32(row1 + x + 8)), vqmovn_u32(vld1q_u32(row1 + x + 12)));
v_r2 = vcombine_u16(vqmovn_u32(vld1q_u32(row2 + x + 8)), vqmovn_u32(vld1q_u32(row2 + x + 12)));
v_2r1 = vqaddq_u16(v_r1, v_r1), v_4r1 = vqaddq_u16(v_2r1, v_2r1);
uint16x8_t v_dst01 = vqaddq_u16(vqaddq_u16(v_r0, v_r2), vqaddq_u16(v_2r1, v_4r1));
uint16x8_t v_dst11 = vshlq_n_u16(vqaddq_u16(v_r1, v_r2), 2);
vst1q_u8(dst0 + x, vcombine_u8(vqmovn_u16(vshrq_n_u16(vaddq_u16(v_dst00, v_delta), 6)),
vqmovn_u16(vshrq_n_u16(vaddq_u16(v_dst01, v_delta), 6))));
vst1q_u8(dst1 + x, vcombine_u8(vqmovn_u16(vshrq_n_u16(vaddq_u16(v_dst10, v_delta), 6)),
vqmovn_u16(vshrq_n_u16(vaddq_u16(v_dst11, v_delta), 6))));
}
for( ; x <= width - 8; x += 8 )
{
uint16x8_t v_r0 = vcombine_u16(vqmovn_u32(vld1q_u32(row0 + x)), vqmovn_u32(vld1q_u32(row0 + x + 4)));
uint16x8_t v_r1 = vcombine_u16(vqmovn_u32(vld1q_u32(row1 + x)), vqmovn_u32(vld1q_u32(row1 + x + 4)));
uint16x8_t v_r2 = vcombine_u16(vqmovn_u32(vld1q_u32(row2 + x)), vqmovn_u32(vld1q_u32(row2 + x + 4)));
uint16x8_t v_2r1 = vqaddq_u16(v_r1, v_r1), v_4r1 = vqaddq_u16(v_2r1, v_2r1);
uint16x8_t v_dst0 = vqaddq_u16(vqaddq_u16(v_r0, v_r2), vqaddq_u16(v_2r1, v_4r1));
uint16x8_t v_dst1 = vqshlq_n_u16(vqaddq_u16(v_r1, v_r2), 2);
vst1_u8(dst0 + x, vqmovn_u16(vshrq_n_u16(vaddq_u16(v_dst0, v_delta), 6)));
vst1_u8(dst1 + x, vqmovn_u16(vshrq_n_u16(vaddq_u16(v_dst1, v_delta), 6)));
}
return x;
}
};
struct PyrUpVec_32s16u
{
int operator()(int** src, ushort** dst, int, int width) const
{
int x = 0;
ushort *dst0 = dst[0], *dst1 = dst[1];
const uint *row0 = (uint *)src[0], *row1 = (uint *)src[1], *row2 = (uint *)src[2];
uint32x4_t v_delta = vdupq_n_u32(32);
for( ; x <= width - 8; x += 8 )
{
uint32x4_t v_r0 = vld1q_u32(row0 + x), v_r1 = vld1q_u32(row1 + x), v_r2 = vld1q_u32(row2 + x);
uint32x4_t v_2r1 = vshlq_n_u32(v_r1, 1), v_4r1 = vshlq_n_u32(v_r1, 2);
uint32x4_t v_dst00 = vaddq_u32(vqaddq_u32(v_r0, v_r2), vaddq_u32(v_2r1, v_4r1));
uint32x4_t v_dst10 = vshlq_n_u32(vaddq_u32(v_r1, v_r2), 2);
v_r0 = vld1q_u32(row0 + x + 4);
v_r1 = vld1q_u32(row1 + x + 4);
v_r2 = vld1q_u32(row2 + x + 4);
v_2r1 = vshlq_n_u32(v_r1, 1);
v_4r1 = vshlq_n_u32(v_r1, 2);
uint32x4_t v_dst01 = vaddq_u32(vaddq_u32(v_r0, v_r2), vaddq_u32(v_2r1, v_4r1));
uint32x4_t v_dst11 = vshlq_n_u32(vaddq_u32(v_r1, v_r2), 2);
vst1q_u16(dst0 + x, vcombine_u16(vmovn_u32(vshrq_n_u32(vaddq_u32(v_dst00, v_delta), 6)),
vmovn_u32(vshrq_n_u32(vaddq_u32(v_dst01, v_delta), 6))));
vst1q_u16(dst1 + x, vcombine_u16(vmovn_u32(vshrq_n_u32(vaddq_u32(v_dst10, v_delta), 6)),
vmovn_u32(vshrq_n_u32(vaddq_u32(v_dst11, v_delta), 6))));
}
for( ; x <= width - 4; x += 4 )
{
uint32x4_t v_r0 = vld1q_u32(row0 + x), v_r1 = vld1q_u32(row1 + x), v_r2 = vld1q_u32(row2 + x);
uint32x4_t v_2r1 = vshlq_n_u32(v_r1, 1), v_4r1 = vshlq_n_u32(v_r1, 2);
uint32x4_t v_dst0 = vaddq_u32(vqaddq_u32(v_r0, v_r2), vaddq_u32(v_2r1, v_4r1));
uint32x4_t v_dst1 = vshlq_n_u32(vaddq_u32(v_r1, v_r2), 2);
vst1_u16(dst0 + x, vmovn_u32(vshrq_n_u32(vaddq_u32(v_dst0, v_delta), 6)));
vst1_u16(dst1 + x, vmovn_u32(vshrq_n_u32(vaddq_u32(v_dst1, v_delta), 6)));
}
return x;
}
};
struct PyrUpVec_32s16s
{
int operator()(int** src, short** dst, int, int width) const
{
int x = 0;
short *dst0 = dst[0], *dst1 = dst[1];
const int *row0 = src[0], *row1 = src[1], *row2 = src[2];
int32x4_t v_delta = vdupq_n_s32(32);
for( ; x <= width - 8; x += 8 )
{
int32x4_t v_r0 = vld1q_s32(row0 + x), v_r1 = vld1q_s32(row1 + x), v_r2 = vld1q_s32(row2 + x);
int32x4_t v_2r1 = vshlq_n_s32(v_r1, 1), v_4r1 = vshlq_n_s32(v_r1, 2);
int32x4_t v_dst00 = vaddq_s32(vaddq_s32(v_r0, v_r2), vaddq_s32(v_2r1, v_4r1));
int32x4_t v_dst10 = vshlq_n_s32(vaddq_s32(v_r1, v_r2), 2);
v_r0 = vld1q_s32(row0 + x + 4);
v_r1 = vld1q_s32(row1 + x + 4);
v_r2 = vld1q_s32(row2 + x + 4);
v_2r1 = vshlq_n_s32(v_r1, 1);
v_4r1 = vshlq_n_s32(v_r1, 2);
int32x4_t v_dst01 = vaddq_s32(vaddq_s32(v_r0, v_r2), vaddq_s32(v_2r1, v_4r1));
int32x4_t v_dst11 = vshlq_n_s32(vaddq_s32(v_r1, v_r2), 2);
vst1q_s16(dst0 + x, vcombine_s16(vqmovn_s32(vshrq_n_s32(vaddq_s32(v_dst00, v_delta), 6)),
vqmovn_s32(vshrq_n_s32(vaddq_s32(v_dst01, v_delta), 6))));
vst1q_s16(dst1 + x, vcombine_s16(vqmovn_s32(vshrq_n_s32(vaddq_s32(v_dst10, v_delta), 6)),
vqmovn_s32(vshrq_n_s32(vaddq_s32(v_dst11, v_delta), 6))));
}
for( ; x <= width - 4; x += 4 )
{
int32x4_t v_r0 = vld1q_s32(row0 + x), v_r1 = vld1q_s32(row1 + x), v_r2 = vld1q_s32(row2 + x);
int32x4_t v_2r1 = vshlq_n_s32(v_r1, 1), v_4r1 = vshlq_n_s32(v_r1, 2);
int32x4_t v_dst0 = vaddq_s32(vaddq_s32(v_r0, v_r2), vaddq_s32(v_2r1, v_4r1));
int32x4_t v_dst1 = vshlq_n_s32(vaddq_s32(v_r1, v_r2), 2);
vst1_s16(dst0 + x, vqmovn_s32(vshrq_n_s32(vaddq_s32(v_dst0, v_delta), 6)));
vst1_s16(dst1 + x, vqmovn_s32(vshrq_n_s32(vaddq_s32(v_dst1, v_delta), 6)));
}
return x;
}
};
struct PyrUpVec_32f
{
int operator()(float** src, float** dst, int, int width) const
{
int x = 0;
float ** dsts = (float **)dst;
const float *row0 = src[0], *row1 = src[1], *row2 = src[2];
float *dst0 = dsts[0], *dst1 = dsts[1];
float *dst0 = dst[0], *dst1 = dst[1];
float32x4_t v_6 = vdupq_n_f32(6.0f), v_scale = vdupq_n_f32(1.f/64.0f), v_scale4 = vmulq_n_f32(v_scale, 4.0f);
for( ; x <= width - 8; x += 8 )
@ -362,12 +512,15 @@ struct PyrUpVec_32f
#else
typedef NoVec<int, uchar> PyrDownVec_32s8u;
typedef NoVec<int, ushort> PyrDownVec_32s16u;
typedef NoVec<int, short> PyrDownVec_32s16s;
typedef NoVec<float, float> PyrDownVec_32f;
typedef PyrDownNoVec<int, uchar> PyrDownVec_32s8u;
typedef PyrDownNoVec<int, ushort> PyrDownVec_32s16u;
typedef PyrDownNoVec<int, short> PyrDownVec_32s16s;
typedef PyrDownNoVec<float, float> PyrDownVec_32f;
typedef NoVec<float, float> PyrUpVec_32f;
typedef PyrUpNoVec<int, uchar> PyrUpVec_32s8u;
typedef PyrUpNoVec<int, short> PyrUpVec_32s16s;
typedef PyrUpNoVec<int, ushort> PyrUpVec_32s16u;
typedef PyrUpNoVec<float, float> PyrUpVec_32f;
#endif
@ -574,7 +727,7 @@ pyrUp_( const Mat& _src, Mat& _dst, int)
row0 = rows[0]; row1 = rows[1]; row2 = rows[2];
dsts[0] = dst0; dsts[1] = dst1;
x = vecOp(rows, (T*)dsts, (int)_dst.step, dsize.width);
x = vecOp(rows, dsts, (int)_dst.step, dsize.width);
for( ; x < dsize.width; x++ )
{
T t1 = castOp((row1[x] + row2[x])*4);
@ -761,7 +914,7 @@ void cv::pyrDown( InputArray _src, OutputArray _dst, const Size& _dsz, int borde
else if( depth == CV_32F )
func = pyrDown_<FltCast<float, 8>, PyrDownVec_32f>;
else if( depth == CV_64F )
func = pyrDown_<FltCast<double, 8>, NoVec<double, double> >;
func = pyrDown_<FltCast<double, 8>, PyrDownNoVec<double, double> >;
else
CV_Error( CV_StsUnsupportedFormat, "" );
@ -830,15 +983,15 @@ void cv::pyrUp( InputArray _src, OutputArray _dst, const Size& _dsz, int borderT
PyrFunc func = 0;
if( depth == CV_8U )
func = pyrUp_<FixPtCast<uchar, 6>, NoVec<int, uchar> >;
func = pyrUp_<FixPtCast<uchar, 6>, PyrUpVec_32s8u >;
else if( depth == CV_16S )
func = pyrUp_<FixPtCast<short, 6>, NoVec<int, short> >;
func = pyrUp_<FixPtCast<short, 6>, PyrUpVec_32s16s >;
else if( depth == CV_16U )
func = pyrUp_<FixPtCast<ushort, 6>, NoVec<int, ushort> >;
func = pyrUp_<FixPtCast<ushort, 6>, PyrUpVec_32s16u >;
else if( depth == CV_32F )
func = pyrUp_<FltCast<float, 6>, PyrUpVec_32f >;
else if( depth == CV_64F )
func = pyrUp_<FltCast<double, 6>, NoVec<double, double> >;
func = pyrUp_<FltCast<double, 6>, PyrUpNoVec<double, double> >;
else
CV_Error( CV_StsUnsupportedFormat, "" );