R=fbarchard@google.com
BUG=libyuv:634
Performance Gains :- (vs C vectorized)
I422ToARGBRow_MSA : ~1.6x
I422ToRGBARow_MSA : ~1.6x
I422ToARGBRow_Any_MSA : ~1.58x
I422ToRGBARow_Any_MSA : ~1.6x
Performance Gains :- (vs C non-vectorized)
I422ToARGBRow_MSA : ~7x
I422ToRGBARow_MSA : ~7x
I422ToARGBRow_Any_MSA : ~6.9x
I422ToRGBARow_Any_MSA : ~6.8x
Regarding performance measurement, We have created standalone tests which pass in row's data from a 1920x1080 filled buffer to both the C and MSA functions. And such N iterations are executed to get more accurate timings of C vs MSA.
Review URL: https://codereview.chromium.org/2430313005 .
Halffloats have a limited range. It shouldnt normally come up, but if the scale value passed in produces a small value, the half floats will be denormals, which are slow and/or flust to zero. This test ensures they behave the same in C and SIMD and tests the performance of denormals.
TEST=TestHalfFloatPlane_denormal
BUG=libyuv:560
R=hubbe@chromium.org
Review URL: https://codereview.chromium.org/2424233004 .
YUY2ToI422_Any_Neon previously required 16 pixels and duplicated
the last pixel. The replication was not necessary after a previous
change to treat YUY2 to 4 byte macro pixels.
TBR=harryjin@google.com
BUG=libyuv:648
TESTED=util/android/test_runner.py gtest -s libyuv_unittest -t 7200 --verbose --release --gtest_filter=*YUY2ToI422* -a "--libyuv_width=17 --libyuv_height=7 --libyuv_repeat=999 --libyuv_flags=1"
Review URL: https://codereview.chromium.org/2399143002 .
As per the preparation patch added in Chromium sources at,
2150943003: Add MIPS SIMD Arch (MSA) build flags for GYP/GN builds
This patch adds first MSA optimized function in libYUV project.
BUG=libyuv:634
R=fbarchard@google.com
Review URL: https://codereview.chromium.org/2285683002 .
Add public methods SplitUVPlanes and MergeUVPlanes based on the
optimized assembly functions that already exists. Also, de-duplicate the
CPU dispatching code for these functions by moving them to helper
functions.
BUG=libyuv:629
R=braveyao@chromium.org
Review URL: https://codereview.chromium.org/2277603004 .
blur requires memory be aligned. change the unittest allocator to guarantee 64 byte alignment.
re-enable blur any test that fails if memory is unaligned.
TBR=harryjin@google.com
BUG=libyuv:596,libyuv:594
TESTED=local build passes with row.h removed from tests.
Review URL: https://codereview.chromium.org/2019753002 .
When using C version of I420Interpolate for msan, a 50% interpolation
would cause stride to be cast to int, which could cause erroneous
memory reads on 64 bit build.
This CL makes the stride use ptrdiff_t for HalfRow_C
BUG=libyuv:582
TESTED=try bots tests
R=dhrosa@google.com
Review URL: https://codereview.chromium.org/1872953002 .
When attempting to normalize function names to end in Row_SIMD it was made
harder with MIPS_DSPR2 naming convention.
Other CPUs do not include the vendor. This should be named consistently.
Removed the DISABLE_MIPS in favour of DISABLE_ASM for consistency with other
processors.
TBR=harryjin@google.com
BUG=libyuv:562
Review URL: https://codereview.chromium.org/1677633002 .
When width was odd Y channel wrote an extra pixel.
This change splits the Y from UV into a temporary
buffer and memcpy's to the destination. Performance
is slower.
Was
YUY2ToNV12_Any (307 ms)
YUY2ToNV12_Unaligned (213 ms)
TestYUY2ToNV12 (181 ms)
YUY2ToNV12_Opt (177 ms)
YUY2ToNV12_Invert (177 ms)
Npw
YUY2ToNV12_Any (300 ms)
YUY2ToNV12_Unaligned (226 ms)
YUY2ToNV12_Invert (206 ms)
TestYUY2ToNV12 (184 ms)
YUY2ToNV12_Opt (181 ms)
TBR=harryjin@google.com
BUG=libyuv:545
Review URL: https://codereview.chromium.org/1593833002 .
Remove inaccurate specializations for 1/4 and 3/4, since they round
incorrectly. Specialize for 100% and 50% are kept due to performance.
Make C and ARM code match SSSE3.
Make unittests expect zero difference.
BUG=libyuv:535
R=harryjin@google.com
Review URL: https://codereview.chromium.org/1533643005 .
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 .
Removes low levels for I420ToBGRA and I420ToRAW and reimplements them as I420ToRGBA and I420ToRGB24 with transposed color matrix.
Adds unittests that do 1 step conversion vs 2 steps to test end swapping versions match direct conversions.
R=harryjin@google.com
BUG=libyuv:518
Review URL: https://codereview.chromium.org/1427993004 .
yuv constants for bt.601 were previously ported to neon64, as well
as the code to respect other color spaces. But the jpeg and bt.709
colour conversion constants were still in armv7 form. This changes
the constants for aarch64 builds to be compatible with the code.
yuv constants are now passed as const *
Remove Yvu constants which were used for older version on nv21 but not new code.
TBR=harryjin@google.com
BUG=none
Review URL: https://codereview.chromium.org/1398623002 .
Low level for NV21ToARGB written to accept yuv matrix used by
other YUV to ARGB functions.
Previously NV21 was implemented for Windows using NV12 with a different
matrix that swapped U and V. But the Arm version of the low level does
not allow the matrix U and V contributions to be swapped.
Using a new low level function that reads NV21 and uses the same
yuvconstants as other YUV conversion functions allows an Arm port of
this function.
TBR=harryjin@google.com
BUG=libyuv:500
Review URL: https://codereview.chromium.org/1388273002 .
ARGBBlendRow_SSE2, ARGBAttenuateRow_SSE2, and MirrorRow_SSE2
Since vast majority of CPUs have SSSE3 now, removing the SSE2
improves the performance of CPU dispatching.
R=harryjin@google.com
BUG=none
Review URL: https://codereview.chromium.org/1377053003 .
