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42 Commits

Author SHA1 Message Date
Martin Storsjö
95ff456c33 Fix the mask for odd widths for ScaleRowUp2_Linear*_Any_NEON 
These NEON functions produce 16 pixels per iteration each, thus
use the mask 15, not 7.

Change-Id: I1f3eb691a9ca4af705393b2842b18b65f6878926
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/2731801
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
 2021-03-03 16:19:17 +00:00
Yuan Tong
c41eabe3d4 Add full 16 bit scaling up by 2x function 
R=fbarchard@chromium.org

Change-Id: I4a869aefdc16e34357a615727711594c5d8e3a80
Bug: libyuv:882
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/2719842
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
 2021-03-02 19:29:02 +00:00
Yuan Tong
d4ecb70610 Add P010ToP410 and P210ToP410 
These are 16 bit bi-planar convert functions to scale UV plane to
Y plane's size using (bi)linear filter.

libyuv_unittest --gtest_filter=*ToP41*

R=fbarchard@chromium.org

Bug: libyuv:872
Change-Id: I3cb4fafe2b2c9eedd0d91cf4c619abb9ee107bc1
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/2690102
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
 2021-02-12 14:55:24 +00:00
Frank Barchard
12a4a2372c Rounding added to scaling upsampler 
Bug: libyuv:872, b/178521093
Change-Id: I86749f73f5e55d5fd8b87ea6938084cbacb1cda7
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/2686945
Reviewed-by: Wan-Teh Chang <wtc@google.com>
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
 2021-02-10 18:51:02 +00:00
Yuan Tong
f7fc83f46d Add NV12ToNV24 and NV16ToNV24 
These are bi-planar convert functions to scale UV plane to Y plane's size using (bi)linear filter.

libyuv_unittest --gtest_filter=*ToNV24*

R=fbarchard@chromium.org

Change-Id: I3d98f833feeef00af3c903ac9ad0e41bdcbcb51f
Bug: libyuv:872
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/2682152
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
 2021-02-09 07:38:40 +00:00
Frank Barchard
942c508448 BT.2020 Full Range yuvconstants 
new color util to compute constants needed based on white point.

[ RUN      ] LibYUVColorTest.TestFullYUVV
hist	      -2	      -1	       0	       1	       2
red	       0	 1627136	13670144	 1479936	       0
green	  319285	 3456836	 9243059	 3440771	  317265
blue	       0	 1561088	14202112	 1014016	       0

Bug: libyuv:877, b/178283356
Change-Id: If432ebfab76b01302fdb416a153c4f26ca0832d6
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/2678859
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
Reviewed-by: richard winterton <rrwinterton@gmail.com>
 2021-02-06 00:26:55 +00:00
Yuan Tong
fc61dde1eb Add special optimization for I420ToI444 and I422ToI444 
These functions use (bi)linear filter, to scale U and V planes to the size of Y plane.
This will help enhance the quality of YUV to RGB conversion.

Also added 10bit and 12bit version:
I010ToI410
I210ToI410
I012ToI412
I212ToI412

libyuv_unittest --gtest_filter=LibYUVConvertTest.I42*ToI444*:LibYUVConvertTest.I*1*ToI41*

R=fbarchard@chromium.org

Change-Id: Ie4a711a5ba28f2ff1f44c021f7a5c149022264c5
Bug: libyuv:872
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/2658097
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
 2021-02-03 10:53:02 +00:00
Frank Barchard
b7a1c5ee5d Scale by even factor low level row function 
Bug: b/171884264
Change-Id: I6a94bde0aa05e681bb4590ea8beec33a61ddbfc9
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/2518361
Reviewed-by: richard winterton <rrwinterton@gmail.com>
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
 2020-11-03 21:25:18 +00:00
Frank Barchard
a4ec5cf9c2 UVScale down use AVX2 and Neon for aarch32 
Intel SkylakeX
Was SSSE3 UVScaleDownBy4_Box (2496 ms)
Now AVX2  UVScaleDownBy4_Box (1983 ms)

Was SSSE3 UVScaleDownBy2_Box (380 ms)
Now AVX2  UVScaleDownBy2_Box (360 ms)

Pixel 4 aarch32
Was UVScaleDownBy4_Box (4295 ms)
Now UVScaleDownBy4_Box (3307 ms)

Was UVScaleDownBy2_Box (1022 ms)
Now UVScaleDownBy2_Box (778 ms)

Bug: libuyv:838
Change-Id: Ic823fa15e5761c1b9a897da27341adbf1ed39883
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/2470196
Reviewed-by: richard winterton <rrwinterton@gmail.com>
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
 2020-10-14 06:23:26 +00:00
Frank Barchard
d730dc2f18 2x down sample for UV planes ported to SSSE3 / NEON 
Bug: libuyv:838
Change-Id: Id9fb3282a3e86143d76b5e0cb557f0523a88b3c8
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/2465578
Reviewed-by: richard winterton <rrwinterton@gmail.com>
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
 2020-10-13 21:42:15 +00:00
Frank Barchard
c85a7b3ae3 MMI Optimized functions I422ToARGB for 1080p video 
Improves playback performance for 1080p video on www.youku.com

BUG=libyuv:841

Change-Id: Iabe7693fba276162af0290863f46e214ab86fb6c
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/1790959
Reviewed-by: Miguel Casas <mcasas@chromium.org>
 2019-09-11 21:06:21 +00:00
Frank Barchard
b36c86fdfe Port box filter to NEON 
Bug: libyuv:821
Change-Id: I4a6b9bee2c2fae199c73c9ec7ecb32bde37c1852
Tested: out/Release/libyuv_unittest --gtest_filter=*ScaleFrom1920x1080_Box --libyuv_width=160 --libyuv_height=90 --libyuv_repeat=1000
Reviewed-on: https://chromium-review.googlesource.com/c/1298598
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
Reviewed-by: Miguel Casas <mcasas@chromium.org>
 2018-10-25 18:56:29 +00:00
Martin Storsjö
9b772abf97 Restore the file mode for source files 
This was changed in 21be9122aadf7824efe3fc19b2a09ff253a688e1.

Change-Id: I6c04dc92f673557e10c231bd090ec8aa88b6bee4
Reviewed-on: https://chromium-review.googlesource.com/1146183
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
 2018-08-06 18:53:32 +00:00
lixia zhang
21be9122aa libyuv:loongson optimize compare/row/scale/rotate files with mmi. 
Currently, libyuv supports MIPS SIMD Arch(MSA),
but libyuv does not supports MultiMedia Instruction(MMI)(such as loongson3a platform).

In order to improve performance of libyuv on loongson3a platform,
this provides optimize 98 functions with mmi.

BUG=libyuv:804

Change-Id: I8947626009efad769b3103a867363ece25d79629
Reviewed-on: https://chromium-review.googlesource.com/1122064
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
 2018-07-20 22:53:04 +00:00
Frank Barchard
92e22cf5b6 Lint cleanup after C99 change CL 
TBR=braveyao@chromium.org
Bug: libyuv:774
Test: git cl lint
Change-Id: I51cf8107a8db17fbc9952d610f3e4d7aac5aa743
Reviewed-on: https://chromium-review.googlesource.com/882217
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
 2018-01-24 19:16:03 +00:00
Frank Barchard
7e389884a1 Switch to C99 types 
Append _t to all sized types.
uint64 becomes uint64_t etc

Bug: libyuv:774
Test: try bots build on all platforms
Change-Id: Ide273d7f8012313d6610415d514a956d6f3a8cac
Reviewed-on: https://chromium-review.googlesource.com/879922
Reviewed-by: Miguel Casas <mcasas@chromium.org>
 2018-01-23 19:16:05 +00:00
Frank Barchard
3b81288ece Remove Mips DSPR2 code 
Bug: libyuv:765
Test: build for mips still passes
Change-Id: I99105ad3951d2210c0793e3b9241c178442fdc37
Reviewed-on: https://chromium-review.googlesource.com/826404
Reviewed-by: Weiyong Yao <braveyao@chromium.org>
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
 2017-12-14 18:22:16 +00:00
Frank Barchard
8cd3e4f3f2 Add MSA optimized ScaleFilterCols, ScaleARGBCols, ScaleARGBFilterCols and ScaleRowDown34 functions 
TBR=kjellander@chromium.org
R=fbarchard@google.com

Bug:libyuv:634
Change-Id: Ib139b9701fc67e24d27a6886377c0cb8b2773fda
Reviewed-on: https://chromium-review.googlesource.com/620791
Reviewed-by: Frank Barchard <fbarchard@google.com>
 2017-08-18 17:23:27 +00:00
Frank Barchard
6c94ad13b5 Remove ARM NaCL macros from source 
NaCL has been disabled for awhile, so the code
will still build, but only with C versions.
This change removes the MEMACCESS() macros from
Neon and Neon64 source.

BUG=libyuv:702
TEST=try bots build for arm.
R=kjellander@chromium.org

Change-Id: Id581a5c8ff71e18cc69595e7fee9337f97c44a19
Reviewed-on: https://chromium-review.googlesource.com/528332
Reviewed-by: Cheng Wang <wangcheng@google.com>
Commit-Queue: Frank Barchard <fbarchard@google.com>
 2017-06-09 22:22:07 +00:00
Frank Barchard
44abf70187 ScaleDown odd functions adjust math so last pixel is half width source. 
existing test passes
out/Release/libyuv_unittest --gtest_filter=*Blend* --libyuv_width=33 --libyuv_height=16

new test added
BUG=libyuv:705
TEST=LibYUVScaleTest.TestScaleOdd

Change-Id: Ica91812aee2e4ed9bcc18df4962b089c2e4ae704
Reviewed-on: https://chromium-review.googlesource.com/524932
Reviewed-by: Cheng Wang <wangcheng@google.com>
Commit-Queue: Frank Barchard <fbarchard@google.com>
 2017-06-06 01:37:26 +00:00
Frank Barchard
000d2fa91a Libyuv MIPS DSPR2 optimizations. 
Optimized functions:

I444ToARGBRow_DSPR2
I422ToARGB4444Row_DSPR2
I422ToARGB1555Row_DSPR2
NV12ToARGBRow_DSPR2
BGRAToUVRow_DSPR2
BGRAToYRow_DSPR2
ABGRToUVRow_DSPR2
ARGBToYRow_DSPR2
ABGRToYRow_DSPR2
RGBAToUVRow_DSPR2
RGBAToYRow_DSPR2
ARGBToUVRow_DSPR2
RGB24ToARGBRow_DSPR2
RAWToARGBRow_DSPR2
RGB565ToARGBRow_DSPR2
ARGB1555ToARGBRow_DSPR2
ARGB4444ToARGBRow_DSPR2
ScaleAddRow_DSPR2

Bug-fixes in functions:

ScaleRowDown2_DSPR2
ScaleRowDown4_DSPR2

BUG=

Review-Url: https://codereview.chromium.org/2626123003 .
 2017-01-11 12:19:13 -08:00
Manojkumar Bhosale
288bfbefb5 Add MSA optimized remaining scale row functions 
R=fbarchard@google.com
BUG=libyuv:634

Performance Gain (vs C vectorized)
ScaleRowDown2_MSA            - ~22.3x
ScaleRowDown2_Any_MSA        - ~19.9x
ScaleRowDown2Linear_MSA      - ~31.2x
ScaleRowDown2Linear_Any_MSA  - ~29.4x
ScaleRowDown2Box_MSA         - ~20.1x
ScaleRowDown2Box_Any_MSA     - ~19.6x
ScaleRowDown4_MSA            - ~11.7x
ScaleRowDown4_Any_MSA        - ~11.2x
ScaleRowDown4Box_MSA         - ~15.1x
ScaleRowDown4Box_Any_MSA     - ~15.1x
ScaleRowDown38_MSA           - ~1x
ScaleRowDown38_Any_MSA       - ~1x
ScaleRowDown38_2_Box_MSA     - ~1.7x
ScaleRowDown38_2_Box_Any_MSA - ~1.7x
ScaleRowDown38_3_Box_MSA     - ~1.7x
ScaleRowDown38_3_Box_Any_MSA - ~1.7x
ScaleAddRow_MSA              - ~1.2x
ScaleAddRow_Any_MSA          - ~1.15x

Performance Gain (vs C non-vectorized)
ScaleRowDown2_MSA            - ~22.4x
ScaleRowDown2_Any_MSA        - ~19.8x
ScaleRowDown2Linear_MSA      - ~31.6x
ScaleRowDown2Linear_Any_MSA  - ~29.4x
ScaleRowDown2Box_MSA         - ~20.1x
ScaleRowDown2Box_Any_MSA     - ~19.6x
ScaleRowDown4_MSA            - ~11.7x
ScaleRowDown4_Any_MSA        - ~11.2x
ScaleRowDown4Box_MSA         - ~15.1x
ScaleRowDown4Box_Any_MSA     - ~15.1x
ScaleRowDown38_MSA           - ~3.2x
ScaleRowDown38_Any_MSA       - ~3.2x
ScaleRowDown38_2_Box_MSA     - ~2.4x
ScaleRowDown38_2_Box_Any_MSA - ~2.3x
ScaleRowDown38_3_Box_MSA     - ~2.9x
ScaleRowDown38_3_Box_Any_MSA - ~2.8x
ScaleAddRow_MSA              - ~8x
ScaleAddRow_Any_MSA          - ~7.46x

Review-Url: https://codereview.chromium.org/2559683002 .
 2016-12-21 13:39:44 +05:30
Manojkumar Bhosale
56b5bbb0be Add MSA optimized ARGB scaling functions 
R=fbarchard@google.com
BUG=libyuv:634

Performance Gain (vs C vectorized)
ScaleARGBRowDown2_MSA           - ~2.6x
ScaleARGBRowDown2Linear_MSA     - ~7.9x
ScaleARGBRowDown2Box_MSA        - ~3.7x
ScaleARGBRowDownEven_MSA        - ~1.2x
ScaleARGBRowDownEvenBox_MSA     - ~3.5x

ScaleARGBRowDown2_Any_MSA       - ~2.6x
ScaleARGBRowDown2Linear_Any_MSA - ~7.9x
ScaleARGBRowDown2Box_Any_MSA    - ~3.6x
ScaleARGBRowDownEven_Any_MSA    - ~1.2x
ScaleARGBRowDownEvenBox_Any_MSA - ~3.5x

Performance Gain (vs C non-vectorized)
ScaleARGBRowDown2_MSA           - 2.6x
ScaleARGBRowDown2Linear_MSA     - 13.5x
ScaleARGBRowDown2Box_MSA        - 5.8x
ScaleARGBRowDownEven_MSA        - 1.2x
ScaleARGBRowDownEvenBox_MSA     - 3.7x

ScaleARGBRowDown2_Any_MSA       - 2.6x
ScaleARGBRowDown2Linear_Any_MSA - 13.5x
ScaleARGBRowDown2Box_Any_MSA    - 5.3x
ScaleARGBRowDownEven_Any_MSA    - 1.2x
ScaleARGBRowDownEvenBox_Any_MSA - 3.7x

Review URL: https://codereview.chromium.org/2527983002 .
 2016-12-07 11:47:15 +05:30
Frank Barchard
e62309f259 clang-format libyuv 
BUG=libyuv:654
R=kjellander@chromium.org

Review URL: https://codereview.chromium.org/2469353005 .
 2016-11-07 17:37:23 -08:00
Frank Barchard
fc52d8ded2 Odd width variation of scale down by 2 for subsampling 
R=dhrosa@google.com, harryjin@google.com
BUG=libyuv:538

Review URL: https://codereview.chromium.org/1558093003 .
 2016-01-06 15:12:17 -08:00
Frank Barchard
80ca4514ef change scale down by 4 to use rounding. 
TBR=harryjin@google.com
BUG=libyuv:447

Review URL: https://codereview.chromium.org/1525033005 .
 2015-12-15 21:25:18 -08:00
Frank Barchard
ae55e41851 use rounding in scaledown by 2 
When scaling down by 2 the formula should round consistently.
(a+b+c+d+2)/4
The C version did but the SSE2 version was doing 2 averages.
avg(avg(a,b),avg(c,d))
This change uses a sum, then rounds.

R=dhrosa@google.com, harryjin@google.com
BUG=libyuv:447,libyuv:527

Review URL: https://codereview.chromium.org/1513183004 .
 2015-12-14 17:25:36 -08:00
fbarchard@google.com
05416e2d9a Box filter for YUV use rows with accumulation buffer for better memory behavior. The old code would do columns accumulated into registers, and then store the result once. This was slow from a memory point of view. The new code does a row of source at a time, updating an accumulation buffer every row. The accumulation buffer is small, and should fit cache. Before each accumulation of N rows, the buffer needs to be reset to zero. If the memset is a bottleneck, it would be faster to do the first row without an add, storing to the accumulation buffer, and then add for the remaining rows. 
BUG=425
TESTED=out\release\libyuv_unittest --gtest_filter=*ScaleTo1x1*
R=harryjin@google.com

Review URL: https://webrtc-codereview.appspot.com/52659004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1428 16f28f9a-4ce2-e073-06de-1de4eb20be90
 2015-06-09 01:05:18 +00:00
fbarchard@google.com
7c09264ffc odd width support for scale by even scale factor and box scale down by 4. scale down by 4 uses scale down by 2 internally. 
BUG=431
TESTED=libyuvTest.ARGBScaleDownBy4_Bilinear

Review URL: https://webrtc-codereview.appspot.com/57399004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1412 16f28f9a-4ce2-e073-06de-1de4eb20be90
 2015-05-26 17:56:51 +00:00
fbarchard@google.com
c38aeec322 scale down by 2 on argb images support odd widths using _any function. 
BUG=431
TESTED=libyuvTest.ARGBScaleDownBy2_Bilinear

Review URL: https://webrtc-codereview.appspot.com/52569004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1410 16f28f9a-4ce2-e073-06de-1de4eb20be90
 2015-05-22 21:39:21 +00:00
fbarchard@google.com
31806d76d9 scale to 3/4 bug fix for odd widths. multiply to index into source by scale factor should be 4 / 3 not 3 / 4. 
BUG=433
TESTED=set LIBYUV_WIDTH=1276 out\release\libyuv_unittest.exe --gtest_catch_exceptions=0 --gtest_filter=*.Scale*
R=tpsiaki@google.com

Review URL: https://webrtc-codereview.appspot.com/49219004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1391 16f28f9a-4ce2-e073-06de-1de4eb20be90
 2015-04-30 17:18:13 +00:00
fbarchard@google.com
9f4636e298 AVX2 port of ScaleDownBy4. 
BUG=314
TESTED=out\release\libyuv_unittest --gtest_filter=*.ScaleDownBy4*

Review URL: https://webrtc-codereview.appspot.com/46159004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1390 16f28f9a-4ce2-e073-06de-1de4eb20be90
 2015-04-30 01:58:32 +00:00
fbarchard@google.com
4e78b8dc2e scale to 3/4 or 3/8 with odd width destinations efficiently. previously if width was not multiple of what the simd loop would do (24), scaling would fall back on slower C code. This change allows SIMD to be used for most of the scaling and C for the remainder, improving efficiency. 
BUG=314
TESTED=set LIBYUV_WIDTH=1896 & ScaleDownBy3by4_*
R=tpsiaki@google.com

Review URL: https://webrtc-codereview.appspot.com/48249004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1380 16f28f9a-4ce2-e073-06de-1de4eb20be90
 2015-04-27 21:56:08 +00:00
fbarchard@google.com
1ffb04b43e Allow ScaleRowDown any functions to accept non-power of 2 for destination SIMD multiple. 
BUG=none
TESTED=local unittests pass
R=bcornell@google.com

Review URL: https://webrtc-codereview.appspot.com/45129004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1379 16f28f9a-4ce2-e073-06de-1de4eb20be90
 2015-04-24 22:32:12 +00:00
fbarchard@google.com
2b7f6b7dee ScaleAddRows_Any_SSE2 functions for handling odd widths. 
BUG=425
TESTED=out\release\libyuv_unittest_old --gtest_filter=*.ScaleDownBy3_*
R=tpsiaki@google.com

Review URL: https://webrtc-codereview.appspot.com/45219004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1377 16f28f9a-4ce2-e073-06de-1de4eb20be90
 2015-04-22 00:51:56 +00:00
yang.zhang@arm.com
5f609856de Add ScaleARGBFilterCols_NEON for ARM32/64 
ARM32/64 NEON versions of ScaleARGBFilterCols_NEON are implemented.

BUG=319
TESTED=libyuvTest.* on ARM32/64 with Android
R=fbarchard@google.com

Change-Id: Ifea62bc25d846bf16cb51d13b408de7bf58dccd4

Review URL: https://webrtc-codereview.appspot.com/46699004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1361 16f28f9a-4ce2-e073-06de-1de4eb20be90
 2015-04-07 03:45:29 +00:00
fbarchard@google.com
44b6ba91e4 Scale down by 4 for odd number of destination pixels using 'any' that handles SIMD for multiple of 8 pixels, and C for the remainder. 
BUG=314
TESTED=local test with width odd

Review URL: https://webrtc-codereview.appspot.com/49599004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1355 16f28f9a-4ce2-e073-06de-1de4eb20be90
 2015-04-03 22:12:53 +00:00
yang.zhang@arm.com
f23d6222ac Add ScaleARGBCols_NEON for ARM32/64 
ARM32/64 NEON versions of ScaleARGBCols_NEON are implemented.

BUG=319
TESTED=libyuvTest.* on ARM32/64 with Android
R=fbarchard@google.com

Change-Id: Id9ad97f7aa5d8a34cd55ace9e648cb6ff028efd9

Review URL: https://webrtc-codereview.appspot.com/47689004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1351 16f28f9a-4ce2-e073-06de-1de4eb20be90
 2015-03-31 03:03:05 +00:00
fbarchard@google.com
72673ac873 linear and point sample scale to half size for AVX2. 
BUG=314
TESTED=out\release\libyuv_unittest.exe --gtest_catch_exceptions=0 --gtest_filter=*.ScaleDownBy2*
R=tpsiaki@google.com

Review URL: https://webrtc-codereview.appspot.com/44959004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1349 16f28f9a-4ce2-e073-06de-1de4eb20be90
 2015-03-30 21:46:08 +00:00
fbarchard@google.com
e6ca9cc2a2 Scale down by 2 AVX2 port. Processes twice as many pixels as SSE2 and takes advantage of 3 argument instructions to reduce register usage and number of instructions. 
BUG=314
TESTED=libyuvTest.ScaleDownBy2_Box
R=tpsiaki@google.com

Review URL: https://webrtc-codereview.appspot.com/42959004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1347 16f28f9a-4ce2-e073-06de-1de4eb20be90
 2015-03-26 23:21:08 +00:00
fbarchard@google.com
d41fbf40dd Handle scale down by factor of 2 efficiently by calling SIMD for multiple of 16 destination pixels, and C for remainder. 
BUG=314
TESTED=out\release\libyuv_unittest.exe --gtest_catch_exceptions=0 --gtest_filter=*.ScaleDownBy2*
R=bcornell@google.com

Review URL: https://webrtc-codereview.appspot.com/48689004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1344 16f28f9a-4ce2-e073-06de-1de4eb20be90
 2015-03-24 23:25:30 +00:00
yang.zhang@arm.com
d6d7de5742 Add ScaleFilterCols_NEON for ARM32/64 
ARM32/64 NEON versions of ScaleFilterCols_NEON are implemented.

BUG=319
TESTED=libyuvTest.* on ARM32/64 with Android
R=fbarchard@google.com

Change-Id: I5b0838769ffb0182155d7cd6bcc520eb81eb5c4e

Review URL: https://webrtc-codereview.appspot.com/41349004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1340 16f28f9a-4ce2-e073-06de-1de4eb20be90
 2015-03-19 03:55:05 +00:00