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体验新版 GitCode,发现更多精彩内容 >>
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37be8686
编写于
9月 18, 2016
作者:
K
k-shinotsuka
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
improve RGB2Luv_b()
上级
dc3d0cbc
变更
1
显示空白变更内容
内联
并排
Showing
1 changed file
with
25 addition
and
47 deletion
+25
-47
modules/imgproc/src/color.cpp
modules/imgproc/src/color.cpp
+25
-47
未找到文件。
modules/imgproc/src/color.cpp
浏览文件 @
37be8686
...
...
@@ -5872,38 +5872,33 @@ struct RGB2Luv_b
#elif CV_SSE2
v_zero
=
_mm_setzero_si128
();
v_scale_inv
=
_mm_set1_ps
(
1.
f
/
255.
f
);
v_scale
=
_mm_set1_ps
(
2.55
f
);
v_coeff1
=
_mm_set1_ps
(
0.72033898305084743
f
);
v_coeff2
=
_mm_set1_ps
(
96.525423728813564
f
);
v_coeff3
=
_mm_set1_ps
(
0.9732824427480916
f
);
v_coeff4
=
_mm_set1_ps
(
136.259541984732824
f
);
haveSIMD
=
checkHardwareSupport
(
CV_CPU_SSE2
);
#endif
}
#if CV_SSE2
void
process
(
const
float
*
buf
,
__m128
i
&
v_l
,
__m128i
&
v_u
,
__m128i
&
v_v
)
const
__m128
&
v_coeffs
,
__m128
&
v_res
,
uchar
*
dst
)
const
{
__m128
v_l0f
=
_mm_load_ps
(
buf
);
__m128
v_l1f
=
_mm_load_ps
(
buf
+
4
);
__m128
v_u0f
=
_mm_load_ps
(
buf
+
8
);
__m128
v_u1f
=
_mm_load_ps
(
buf
+
12
);
__m128
v_v0f
=
_mm_load_ps
(
buf
+
16
);
__m128
v_v1f
=
_mm_load_ps
(
buf
+
20
);
_mm_deinterleave_ps
(
v_l0f
,
v_l1f
,
v_u0f
,
v_u1f
,
v_v0f
,
v_v1f
);
v_l0f
=
_mm_add_ps
(
_mm_mul_ps
(
v_l0f
,
v_coeffs
),
v_res
);
v_u1f
=
_mm_add_ps
(
_mm_mul_ps
(
v_u1f
,
v_coeffs
),
v_res
);
v_coeffs
=
_mm_castsi128_ps
(
_mm_shuffle_epi32
(
_mm_castps_si128
(
v_coeffs
),
0x92
));
v_res
=
_mm_castsi128_ps
(
_mm_shuffle_epi32
(
_mm_castps_si128
(
v_res
),
0x92
));
v_u0f
=
_mm_add_ps
(
_mm_mul_ps
(
v_u0f
,
v_coeffs
),
v_res
);
v_coeffs
=
_mm_castsi128_ps
(
_mm_shuffle_epi32
(
_mm_castps_si128
(
v_coeffs
),
0x92
));
v_res
=
_mm_castsi128_ps
(
_mm_shuffle_epi32
(
_mm_castps_si128
(
v_res
),
0x92
));
v_l1f
=
_mm_add_ps
(
_mm_mul_ps
(
v_l1f
,
v_coeffs
),
v_res
);
v_l0f
=
_mm_mul_ps
(
v_l0f
,
v_scale
);
v_l1f
=
_mm_mul_ps
(
v_l1f
,
v_scale
);
v_u0f
=
_mm_add_ps
(
_mm_mul_ps
(
v_u0f
,
v_coeff1
),
v_coeff2
);
v_u1f
=
_mm_add_ps
(
_mm_mul_ps
(
v_u1f
,
v_coeff1
),
v_coeff2
);
v_v0f
=
_mm_add_ps
(
_mm_mul_ps
(
v_v0f
,
v_coeff3
),
v_coeff4
);
v_v1f
=
_mm_add_ps
(
_mm_mul_ps
(
v_v1f
,
v_coeff3
),
v_coeff4
);
__m128i
v_l
=
_mm_packs_epi32
(
_mm_cvtps_epi32
(
v_l0f
),
_mm_cvtps_epi32
(
v_l1f
));
__m128i
v_u
=
_mm_packs_epi32
(
_mm_cvtps_epi32
(
v_u0f
),
_mm_cvtps_epi32
(
v_u1f
));
__m128i
v_l0
=
_mm_packus_epi16
(
v_l
,
v_u
);
v_l
=
_mm_packs_epi32
(
_mm_cvtps_epi32
(
v_l0f
),
_mm_cvtps_epi32
(
v_l1f
));
v_u
=
_mm_packs_epi32
(
_mm_cvtps_epi32
(
v_u0f
),
_mm_cvtps_epi32
(
v_u1f
));
v_v
=
_mm_packs_epi32
(
_mm_cvtps_epi32
(
v_v0f
),
_mm_cvtps_epi32
(
v_v1f
));
_mm_storeu_si128
((
__m128i
*
)(
dst
),
v_l0
);
}
#endif
...
...
@@ -5912,6 +5907,11 @@ struct RGB2Luv_b
int
i
,
j
,
scn
=
srccn
;
float
CV_DECL_ALIGNED
(
16
)
buf
[
3
*
BLOCK_SIZE
];
#if CV_SSE2
__m128
v_coeffs
=
_mm_set_ps
(
2.55
f
,
0.9732824427480916
f
,
0.72033898305084743
f
,
2.55
f
);
__m128
v_res
=
_mm_set_ps
(
0.
f
,
136.259541984732824
f
,
96.525423728813564
f
,
0.
f
);
#endif
for
(
i
=
0
;
i
<
n
;
i
+=
BLOCK_SIZE
,
dst
+=
BLOCK_SIZE
*
3
)
{
int
dn
=
std
::
min
(
n
-
i
,
(
int
)
BLOCK_SIZE
);
...
...
@@ -5996,38 +5996,16 @@ struct RGB2Luv_b
#elif CV_SSE2
if
(
haveSIMD
)
{
for
(
;
j
<=
(
dn
-
32
)
*
3
;
j
+=
96
)
for
(
;
j
<=
(
dn
-
16
)
*
3
;
j
+=
48
)
{
__m128i
v_l_0
,
v_u_0
,
v_v_0
;
process
(
buf
+
j
,
v_l_0
,
v_u_0
,
v_v_0
);
__m128i
v_l_1
,
v_u_1
,
v_v_1
;
process
(
buf
+
j
+
24
,
v_l_1
,
v_u_1
,
v_v_1
);
__m128i
v_l0
=
_mm_packus_epi16
(
v_l_0
,
v_l_1
);
__m128i
v_u0
=
_mm_packus_epi16
(
v_u_0
,
v_u_1
);
__m128i
v_v0
=
_mm_packus_epi16
(
v_v_0
,
v_v_1
);
process
(
buf
+
j
+
48
,
v_l_0
,
v_u_0
,
v_v_0
);
process
(
buf
+
j
+
72
,
v_l_1
,
v_u_1
,
v_v_1
);
__m128i
v_l1
=
_mm_packus_epi16
(
v_l_0
,
v_l_1
);
__m128i
v_u1
=
_mm_packus_epi16
(
v_u_0
,
v_u_1
);
__m128i
v_v1
=
_mm_packus_epi16
(
v_v_0
,
v_v_1
);
v_coeffs
,
v_res
,
dst
+
j
);
_mm_interleave_epi8
(
v_l0
,
v_l1
,
v_u0
,
v_u1
,
v_v0
,
v_v1
);
process
(
buf
+
j
+
16
,
v_coeffs
,
v_res
,
dst
+
j
+
16
);
_mm_storeu_si128
((
__m128i
*
)(
dst
+
j
),
v_l0
);
_mm_storeu_si128
((
__m128i
*
)(
dst
+
j
+
16
),
v_l1
);
_mm_storeu_si128
((
__m128i
*
)(
dst
+
j
+
32
),
v_u0
);
_mm_storeu_si128
((
__m128i
*
)(
dst
+
j
+
48
),
v_u1
);
_mm_storeu_si128
((
__m128i
*
)(
dst
+
j
+
64
),
v_v0
);
_mm_storeu_si128
((
__m128i
*
)(
dst
+
j
+
80
),
v_v1
);
process
(
buf
+
j
+
32
,
v_coeffs
,
v_res
,
dst
+
j
+
32
);
}
}
#endif
...
...
@@ -6048,7 +6026,7 @@ struct RGB2Luv_b
float32x4_t
v_scale
,
v_scale_inv
,
v_coeff1
,
v_coeff2
,
v_coeff3
,
v_coeff4
;
uint8x8_t
v_alpha
;
#elif CV_SSE2
__m128
v_scale
,
v_scale_inv
,
v_coeff1
,
v_coeff2
,
v_coeff3
,
v_coeff4
;
__m128
v_scale
_inv
;
__m128i
v_zero
;
bool
haveSIMD
;
#endif
...
...
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