Skip to content
Projects
Groups
Snippets
Help
Loading...
Sign in / Register
Toggle navigation
F
ffmpeg
Project
Project
Details
Activity
Cycle Analytics
Repository
Repository
Files
Commits
Branches
Tags
Contributors
Graph
Compare
Charts
Issues
0
Issues
0
List
Board
Labels
Milestones
Merge Requests
0
Merge Requests
0
CI / CD
CI / CD
Pipelines
Jobs
Schedules
Charts
Packages
Packages
Wiki
Wiki
Snippets
Snippets
Members
Members
Collapse sidebar
Close sidebar
Activity
Graph
Charts
Create a new issue
Jobs
Commits
Issue Boards
Open sidebar
submodule
ffmpeg
Commits
82b2df97
Commit
82b2df97
authored
Jun 09, 2012
by
Justin Ruggles
Browse files
Options
Browse Files
Download
Email Patches
Plain Diff
float_dsp: add x86-optimized functions for vector_fmac_scalar()
parent
cb5042d0
Hide whitespace changes
Inline
Side-by-side
Showing
3 changed files
with
57 additions
and
3 deletions
+57
-3
float_dsp.h
libavutil/float_dsp.h
+3
-3
float_dsp.asm
libavutil/x86/float_dsp.asm
+47
-0
float_dsp_init.c
libavutil/x86/float_dsp_init.c
+7
-0
No files found.
libavutil/float_dsp.h
View file @
82b2df97
...
@@ -42,12 +42,12 @@ typedef struct AVFloatDSPContext {
...
@@ -42,12 +42,12 @@ typedef struct AVFloatDSPContext {
* overlap exactly or not at all.
* overlap exactly or not at all.
*
*
* @param dst result vector
* @param dst result vector
* constraints:
16
-byte aligned
* constraints:
32
-byte aligned
* @param src input vector
* @param src input vector
* constraints:
16
-byte aligned
* constraints:
32
-byte aligned
* @param mul scalar value
* @param mul scalar value
* @param len length of vector
* @param len length of vector
* constraints: multiple of
4
* constraints: multiple of
16
*/
*/
void
(
*
vector_fmac_scalar
)(
float
*
dst
,
const
float
*
src
,
float
mul
,
void
(
*
vector_fmac_scalar
)(
float
*
dst
,
const
float
*
src
,
float
mul
,
int
len
);
int
len
);
...
...
libavutil/x86/float_dsp.asm
View file @
82b2df97
...
@@ -19,6 +19,7 @@
...
@@ -19,6 +19,7 @@
;******************************************************************************
;******************************************************************************
%include
"x86inc.asm"
%include
"x86inc.asm"
%include
"x86util.asm"
SECTION
.
text
SECTION
.
text
...
@@ -53,3 +54,49 @@ VECTOR_FMUL
...
@@ -53,3 +54,49 @@ VECTOR_FMUL
INIT_YMM
avx
INIT_YMM
avx
VECTOR_FMUL
VECTOR_FMUL
%endif
%endif
;------------------------------------------------------------------------------
; void ff_vector_fmac_scalar(float *dst, const float *src, float mul, int len)
;------------------------------------------------------------------------------
%macro
VECTOR_FMAC_SCALAR
0
%if
UNIX64
cglobal
vector_fmac_scalar
,
3
,
3
,
3
,
dst
,
src
,
len
%else
cglobal
vector_fmac_scalar
,
4
,
4
,
3
,
dst
,
src
,
mul
,
len
%endif
%if
WIN64
SWAP
0
,
2
%endif
%if
ARCH_X86_32
VBROADCASTSS
m0
,
mulm
%else
shufps
xmm0
,
xmm0
,
0
%if
cpuflag
(
avx
)
vinsertf128
m0
,
m0
,
xmm0
,
1
%endif
%endif
lea
lenq
,
[
lend
*
4
-
2
*
mmsize
]
.
loop
mulps
m1
,
m0
,
[
srcq
+
lenq
]
mulps
m2
,
m0
,
[
srcq
+
lenq
+
mmsize
]
addps
m1
,
m1
,
[
dstq
+
lenq
]
addps
m2
,
m2
,
[
dstq
+
lenq
+
mmsize
]
mova
[
dstq
+
lenq
]
,
m1
mova
[
dstq
+
lenq
+
mmsize
]
,
m2
sub
lenq
,
2
*
mmsize
jge
.
loop
%if
mmsize
==
32
vzeroupper
RET
%else
REP_RET
%endif
%endmacro
INIT_XMM
sse
VECTOR_FMAC_SCALAR
%if
HAVE_AVX
INIT_YMM
avx
VECTOR_FMAC_SCALAR
%endif
libavutil/x86/float_dsp_init.c
View file @
82b2df97
...
@@ -26,6 +26,11 @@ extern void ff_vector_fmul_sse(float *dst, const float *src0, const float *src1,
...
@@ -26,6 +26,11 @@ extern void ff_vector_fmul_sse(float *dst, const float *src0, const float *src1,
extern
void
ff_vector_fmul_avx
(
float
*
dst
,
const
float
*
src0
,
const
float
*
src1
,
extern
void
ff_vector_fmul_avx
(
float
*
dst
,
const
float
*
src0
,
const
float
*
src1
,
int
len
);
int
len
);
extern
void
ff_vector_fmac_scalar_sse
(
float
*
dst
,
const
float
*
src
,
float
mul
,
int
len
);
extern
void
ff_vector_fmac_scalar_avx
(
float
*
dst
,
const
float
*
src
,
float
mul
,
int
len
);
void
ff_float_dsp_init_x86
(
AVFloatDSPContext
*
fdsp
)
void
ff_float_dsp_init_x86
(
AVFloatDSPContext
*
fdsp
)
{
{
#if HAVE_YASM
#if HAVE_YASM
...
@@ -33,9 +38,11 @@ void ff_float_dsp_init_x86(AVFloatDSPContext *fdsp)
...
@@ -33,9 +38,11 @@ void ff_float_dsp_init_x86(AVFloatDSPContext *fdsp)
if
(
mm_flags
&
AV_CPU_FLAG_SSE
&&
HAVE_SSE
)
{
if
(
mm_flags
&
AV_CPU_FLAG_SSE
&&
HAVE_SSE
)
{
fdsp
->
vector_fmul
=
ff_vector_fmul_sse
;
fdsp
->
vector_fmul
=
ff_vector_fmul_sse
;
fdsp
->
vector_fmac_scalar
=
ff_vector_fmac_scalar_sse
;
}
}
if
(
mm_flags
&
AV_CPU_FLAG_AVX
&&
HAVE_AVX
)
{
if
(
mm_flags
&
AV_CPU_FLAG_AVX
&&
HAVE_AVX
)
{
fdsp
->
vector_fmul
=
ff_vector_fmul_avx
;
fdsp
->
vector_fmul
=
ff_vector_fmul_avx
;
fdsp
->
vector_fmac_scalar
=
ff_vector_fmac_scalar_avx
;
}
}
#endif
#endif
}
}
Write
Preview
Markdown
is supported
0%
Try again
or
attach a new file
Attach a file
Cancel
You are about to add
0
people
to the discussion. Proceed with caution.
Finish editing this message first!
Cancel
Please
register
or
sign in
to comment