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spatialGradient: Move vector decl into loop

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This commit is contained in:
Seon-Wook Park 2015-06-27 10:01:47 +02:00
parent db0cc56c52
commit 15ea401087
1 changed files with 37 additions and 44 deletions
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81
modules/imgproc/src/spatialgradient.cpp
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@ -115,6 +115,10 @@ void spatialGradient( InputArray _src, OutputArray _dx, OutputArray _dy,
int i_start = 0;
int j_start = 0;
#if CV_SIMD128
uchar tmp;
uchar *m_src;
short *n_dx, *n_dy;
// Characters in variable names have the following meanings:
// u: unsigned char
// s: signed int
@ -124,18 +128,6 @@ void spatialGradient( InputArray _src, OutputArray _dx, OutputArray _dy,
// n: offset 0
// p: offset 1
// Example: umn is offset -1 in row and offset 0 in column
uchar tmp;
v_uint8x16 v_um, v_un, v_up;
v_uint16x8 v_um1, v_um2, v_un1, v_un2, v_up1, v_up2;
v_int16x8 v_s1m1, v_s1m2, v_s1n1, v_s1n2, v_s1p1, v_s1p2,
v_s2m1, v_s2m2, v_s2n1, v_s2n2, v_s2p1, v_s2p2,
v_s3m1, v_s3m2, v_s3n1, v_s3n2, v_s3p1, v_s3p2,
v_s4m1, v_s4m2, v_s4n1, v_s4n2, v_s4p1, v_s4p2,
v_tmp, v_sdx1, v_sdx2, v_sdy1, v_sdy2;
uchar *m_src;
short *n_dx, *n_dy;
for ( i = 0; i < H - 1; i += 2 )
{
p_src = P_src[i]; c_src = P_src[i+1]; n_src = P_src[i+2]; m_src = P_src[i+3];
@ -150,24 +142,25 @@ void spatialGradient( InputArray _src, OutputArray _dx, OutputArray _dy,
// Load top row for 3x3 Sobel filter
if ( left ) { tmp = p_src[j-1]; p_src[j-1] = p_src[j+j_offl]; }
v_um = v_load(&p_src[j-1]);
v_uint8x16 v_um = v_load(&p_src[j-1]);
if ( left ) p_src[j-1] = tmp;
v_un = v_load(&p_src[j]);
v_uint8x16 v_un = v_load(&p_src[j]);
if ( right ) { tmp = p_src[j+16]; p_src[j+16] = p_src[j+15+j_offr]; }
v_up = v_load(&p_src[j+1]);
v_uint8x16 v_up = v_load(&p_src[j+1]);
if ( right ) p_src[j+16] = tmp;
v_uint16x8 v_um1, v_um2, v_un1, v_un2, v_up1, v_up2;
v_expand(v_um, v_um1, v_um2);
v_expand(v_un, v_un1, v_un2);
v_expand(v_up, v_up1, v_up2);
v_s1m1 = v_reinterpret_as_s16(v_um1);
v_s1m2 = v_reinterpret_as_s16(v_um2);
v_s1n1 = v_reinterpret_as_s16(v_un1);
v_s1n2 = v_reinterpret_as_s16(v_un2);
v_s1p1 = v_reinterpret_as_s16(v_up1);
v_s1p2 = v_reinterpret_as_s16(v_up2);
v_int16x8 v_s1m1 = v_reinterpret_as_s16(v_um1);
v_int16x8 v_s1m2 = v_reinterpret_as_s16(v_um2);
v_int16x8 v_s1n1 = v_reinterpret_as_s16(v_un1);
v_int16x8 v_s1n2 = v_reinterpret_as_s16(v_un2);
v_int16x8 v_s1p1 = v_reinterpret_as_s16(v_up1);
v_int16x8 v_s1p2 = v_reinterpret_as_s16(v_up2);
// Load second row for 3x3 Sobel filter
if ( left ) { tmp = c_src[j-1]; c_src[j-1] = c_src[j+j_offl]; }
@ -183,12 +176,12 @@ void spatialGradient( InputArray _src, OutputArray _dx, OutputArray _dy,
v_expand(v_um, v_um1, v_um2);
v_expand(v_un, v_un1, v_un2);
v_expand(v_up, v_up1, v_up2);
v_s2m1 = v_reinterpret_as_s16(v_um1);
v_s2m2 = v_reinterpret_as_s16(v_um2);
v_s2n1 = v_reinterpret_as_s16(v_un1);
v_s2n2 = v_reinterpret_as_s16(v_un2);
v_s2p1 = v_reinterpret_as_s16(v_up1);
v_s2p2 = v_reinterpret_as_s16(v_up2);
v_int16x8 v_s2m1 = v_reinterpret_as_s16(v_um1);
v_int16x8 v_s2m2 = v_reinterpret_as_s16(v_um2);
v_int16x8 v_s2n1 = v_reinterpret_as_s16(v_un1);
v_int16x8 v_s2n2 = v_reinterpret_as_s16(v_un2);
v_int16x8 v_s2p1 = v_reinterpret_as_s16(v_up1);
v_int16x8 v_s2p2 = v_reinterpret_as_s16(v_up2);
// Load third row for 3x3 Sobel filter
if ( left ) { tmp = n_src[j-1]; n_src[j-1] = n_src[j+j_offl]; }
@ -204,12 +197,12 @@ void spatialGradient( InputArray _src, OutputArray _dx, OutputArray _dy,
v_expand(v_um, v_um1, v_um2);
v_expand(v_un, v_un1, v_un2);
v_expand(v_up, v_up1, v_up2);
v_s3m1 = v_reinterpret_as_s16(v_um1);
v_s3m2 = v_reinterpret_as_s16(v_um2);
v_s3n1 = v_reinterpret_as_s16(v_un1);
v_s3n2 = v_reinterpret_as_s16(v_un2);
v_s3p1 = v_reinterpret_as_s16(v_up1);
v_s3p2 = v_reinterpret_as_s16(v_up2);
v_int16x8 v_s3m1 = v_reinterpret_as_s16(v_um1);
v_int16x8 v_s3m2 = v_reinterpret_as_s16(v_um2);
v_int16x8 v_s3n1 = v_reinterpret_as_s16(v_un1);
v_int16x8 v_s3n2 = v_reinterpret_as_s16(v_un2);
v_int16x8 v_s3p1 = v_reinterpret_as_s16(v_up1);
v_int16x8 v_s3p2 = v_reinterpret_as_s16(v_up2);
// Load fourth row for 3x3 Sobel filter
if ( left ) { tmp = m_src[j-1]; m_src[j-1] = m_src[j+j_offl]; }
@ -225,24 +218,24 @@ void spatialGradient( InputArray _src, OutputArray _dx, OutputArray _dy,
v_expand(v_um, v_um1, v_um2);
v_expand(v_un, v_un1, v_un2);
v_expand(v_up, v_up1, v_up2);
v_s4m1 = v_reinterpret_as_s16(v_um1);
v_s4m2 = v_reinterpret_as_s16(v_um2);
v_s4n1 = v_reinterpret_as_s16(v_un1);
v_s4n2 = v_reinterpret_as_s16(v_un2);
v_s4p1 = v_reinterpret_as_s16(v_up1);
v_s4p2 = v_reinterpret_as_s16(v_up2);
v_int16x8 v_s4m1 = v_reinterpret_as_s16(v_um1);
v_int16x8 v_s4m2 = v_reinterpret_as_s16(v_um2);
v_int16x8 v_s4n1 = v_reinterpret_as_s16(v_un1);
v_int16x8 v_s4n2 = v_reinterpret_as_s16(v_un2);
v_int16x8 v_s4p1 = v_reinterpret_as_s16(v_up1);
v_int16x8 v_s4p2 = v_reinterpret_as_s16(v_up2);
// dx
v_tmp = v_s2p1 - v_s2m1;
v_sdx1 = (v_s1p1 - v_s1m1) + (v_tmp + v_tmp) + (v_s3p1 - v_s3m1);
v_int16x8 v_tmp = v_s2p1 - v_s2m1;
v_int16x8 v_sdx1 = (v_s1p1 - v_s1m1) + (v_tmp + v_tmp) + (v_s3p1 - v_s3m1);
v_tmp = v_s2p2 - v_s2m2;
v_sdx2 = (v_s1p2 - v_s1m2) + (v_tmp + v_tmp) + (v_s3p2 - v_s3m2);
v_int16x8 v_sdx2 = (v_s1p2 - v_s1m2) + (v_tmp + v_tmp) + (v_s3p2 - v_s3m2);
// dy
v_tmp = v_s3n1 - v_s1n1;
v_sdy1 = (v_s3m1 - v_s1m1) + (v_tmp + v_tmp) + (v_s3p1 - v_s1p1);
v_int16x8 v_sdy1 = (v_s3m1 - v_s1m1) + (v_tmp + v_tmp) + (v_s3p1 - v_s1p1);
v_tmp = v_s3n2 - v_s1n2;
v_sdy2 = (v_s3m2 - v_s1m2) + (v_tmp + v_tmp) + (v_s3p2 - v_s1p2);
v_int16x8 v_sdy2 = (v_s3m2 - v_s1m2) + (v_tmp + v_tmp) + (v_s3p2 - v_s1p2);
// Store
v_store(&c_dx[j], v_sdx1);