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Xiph.Org
aom-rav1e
Commits
66c41f99
Commit
66c41f99
authored
Sep 09, 2016
by
Yaowu Xu
Committed by
Gerrit Code Review
Sep 09, 2016
Browse files
Merge "Clarify valid value ranges" into nextgenv2
parents
34ddb7ab
6feda060
Changes
1
Hide whitespace changes
Inline
Side-by-side
aom_dsp/x86/variance_sse2.c
View file @
66c41f99
...
...
@@ -9,6 +9,7 @@
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#include <assert.h>
#include <emmintrin.h> // SSE2
#include "./aom_config.h"
...
...
@@ -166,11 +167,13 @@ static void variance_sse2(const unsigned char *src, int src_stride,
}
}
unsigned
int
aom_variance4x4_sse2
(
const
u
nsigned
char
*
src
,
int
src_stride
,
const
u
nsigned
char
*
ref
,
int
ref_stride
,
unsigned
int
aom_variance4x4_sse2
(
const
u
int8_t
*
src
,
int
src_stride
,
const
u
int8_t
*
ref
,
int
ref_stride
,
unsigned
int
*
sse
)
{
int
sum
;
get4x4var_sse2
(
src
,
src_stride
,
ref
,
ref_stride
,
sse
,
&
sum
);
assert
(
sum
<=
255
*
4
*
4
);
assert
(
sum
>=
-
255
*
4
*
4
);
return
*
sse
-
((
sum
*
sum
)
>>
4
);
}
...
...
@@ -180,6 +183,8 @@ unsigned int aom_variance8x4_sse2(const uint8_t *src, int src_stride,
int
sum
;
variance_sse2
(
src
,
src_stride
,
ref
,
ref_stride
,
8
,
4
,
sse
,
&
sum
,
get4x4var_sse2
,
4
);
assert
(
sum
<=
255
*
8
*
4
);
assert
(
sum
>=
-
255
*
8
*
4
);
return
*
sse
-
((
sum
*
sum
)
>>
5
);
}
...
...
@@ -189,6 +194,8 @@ unsigned int aom_variance4x8_sse2(const uint8_t *src, int src_stride,
int
sum
;
variance_sse2
(
src
,
src_stride
,
ref
,
ref_stride
,
4
,
8
,
sse
,
&
sum
,
get4x4var_sse2
,
4
);
assert
(
sum
<=
255
*
8
*
4
);
assert
(
sum
>=
-
255
*
8
*
4
);
return
*
sse
-
((
sum
*
sum
)
>>
5
);
}
...
...
@@ -197,6 +204,8 @@ unsigned int aom_variance8x8_sse2(const unsigned char *src, int src_stride,
unsigned
int
*
sse
)
{
int
sum
;
aom_get8x8var_sse2
(
src
,
src_stride
,
ref
,
ref_stride
,
sse
,
&
sum
);
assert
(
sum
<=
255
*
8
*
8
);
assert
(
sum
>=
-
255
*
8
*
8
);
return
*
sse
-
((
sum
*
sum
)
>>
6
);
}
...
...
@@ -206,6 +215,8 @@ unsigned int aom_variance16x8_sse2(const unsigned char *src, int src_stride,
int
sum
;
variance_sse2
(
src
,
src_stride
,
ref
,
ref_stride
,
16
,
8
,
sse
,
&
sum
,
aom_get8x8var_sse2
,
8
);
assert
(
sum
<=
255
*
16
*
8
);
assert
(
sum
>=
-
255
*
16
*
8
);
return
*
sse
-
((
sum
*
sum
)
>>
7
);
}
...
...
@@ -215,6 +226,8 @@ unsigned int aom_variance8x16_sse2(const unsigned char *src, int src_stride,
int
sum
;
variance_sse2
(
src
,
src_stride
,
ref
,
ref_stride
,
8
,
16
,
sse
,
&
sum
,
aom_get8x8var_sse2
,
8
);
assert
(
sum
<=
255
*
16
*
8
);
assert
(
sum
>=
-
255
*
16
*
8
);
return
*
sse
-
((
sum
*
sum
)
>>
7
);
}
...
...
@@ -223,7 +236,9 @@ unsigned int aom_variance16x16_sse2(const unsigned char *src, int src_stride,
unsigned
int
*
sse
)
{
int
sum
;
aom_get16x16var_sse2
(
src
,
src_stride
,
ref
,
ref_stride
,
sse
,
&
sum
);
return
*
sse
-
(((
uint32_t
)((
int64_t
)
sum
*
sum
))
>>
8
);
assert
(
sum
<=
255
*
16
*
16
);
assert
(
sum
>=
-
255
*
16
*
16
);
return
*
sse
-
((
uint32_t
)((
int64_t
)
sum
*
sum
)
>>
8
);
}
unsigned
int
aom_variance32x32_sse2
(
const
uint8_t
*
src
,
int
src_stride
,
...
...
@@ -232,6 +247,8 @@ unsigned int aom_variance32x32_sse2(const uint8_t *src, int src_stride,
int
sum
;
variance_sse2
(
src
,
src_stride
,
ref
,
ref_stride
,
32
,
32
,
sse
,
&
sum
,
aom_get16x16var_sse2
,
16
);
assert
(
sum
<=
255
*
32
*
32
);
assert
(
sum
>=
-
255
*
32
*
32
);
return
*
sse
-
(((
int64_t
)
sum
*
sum
)
>>
10
);
}
...
...
@@ -241,6 +258,8 @@ unsigned int aom_variance32x16_sse2(const uint8_t *src, int src_stride,
int
sum
;
variance_sse2
(
src
,
src_stride
,
ref
,
ref_stride
,
32
,
16
,
sse
,
&
sum
,
aom_get16x16var_sse2
,
16
);
assert
(
sum
<=
255
*
32
*
16
);
assert
(
sum
>=
-
255
*
32
*
16
);
return
*
sse
-
(((
int64_t
)
sum
*
sum
)
>>
9
);
}
...
...
@@ -250,6 +269,8 @@ unsigned int aom_variance16x32_sse2(const uint8_t *src, int src_stride,
int
sum
;
variance_sse2
(
src
,
src_stride
,
ref
,
ref_stride
,
16
,
32
,
sse
,
&
sum
,
aom_get16x16var_sse2
,
16
);
assert
(
sum
<=
255
*
32
*
16
);
assert
(
sum
>=
-
255
*
32
*
16
);
return
*
sse
-
(((
int64_t
)
sum
*
sum
)
>>
9
);
}
...
...
@@ -259,6 +280,8 @@ unsigned int aom_variance64x64_sse2(const uint8_t *src, int src_stride,
int
sum
;
variance_sse2
(
src
,
src_stride
,
ref
,
ref_stride
,
64
,
64
,
sse
,
&
sum
,
aom_get16x16var_sse2
,
16
);
assert
(
sum
<=
255
*
64
*
64
);
assert
(
sum
>=
-
255
*
64
*
64
);
return
*
sse
-
(((
int64_t
)
sum
*
sum
)
>>
12
);
}
...
...
@@ -268,6 +291,8 @@ unsigned int aom_variance64x32_sse2(const uint8_t *src, int src_stride,
int
sum
;
variance_sse2
(
src
,
src_stride
,
ref
,
ref_stride
,
64
,
32
,
sse
,
&
sum
,
aom_get16x16var_sse2
,
16
);
assert
(
sum
<=
255
*
64
*
32
);
assert
(
sum
>=
-
255
*
64
*
32
);
return
*
sse
-
(((
int64_t
)
sum
*
sum
)
>>
11
);
}
...
...
@@ -277,6 +302,8 @@ unsigned int aom_variance32x64_sse2(const uint8_t *src, int src_stride,
int
sum
;
variance_sse2
(
src
,
src_stride
,
ref
,
ref_stride
,
32
,
64
,
sse
,
&
sum
,
aom_get16x16var_sse2
,
16
);
assert
(
sum
<=
255
*
64
*
32
);
assert
(
sum
>=
-
255
*
64
*
32
);
return
*
sse
-
(((
int64_t
)
sum
*
sum
)
>>
11
);
}
...
...
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