- Replace the corresponding assembly code.
- No user level speed performance degrade.
- Unit tests passed.
Change-Id: Idd0c5a4bad4976f1617c34100cb46e75e3b961e5
The previous implementation confused bit/bytes/elements. It was using
'32' as the multiplier but that was mistakenly adopted because a 32x32
transform embedded the stride.
Change-Id: Ieeb867a332416b9a40580b5e7c9b20088e9e691a
This matches bitdepth_conversion_sse2.asm and produces substantially
better assembly. The old way had lots of 'movzwl' and 'shl' and storing
back to memory before loading into an xmm register.
Change-Id: Ib33e35354dfd691a4f8b1e39f4dbcbb14cd5302b
This commit reworks the SSSE3 implementation of the forward 8x8
2D-DCT. It uses a cyclic rotation approach to the temporary xmm
registers. It reduces the average cycles from 158 to 154. The SSE2
version uses 169 cycles.
Change-Id: I1b79b9642aae0ed3fb3cefb5b70246e6de5d5caa
While we are at it:
- Rename some variables to more meaningful names
- Reuse some common consts from a header instead of redefining them.
Change-Id: I75c4248cb75aa54c52111686f139b096dc119328
(cherry picked from aomedia 09eea21)
Rename vpx_lpf_horizontal_edge_8() to vpx_lpf_horizontal_16().
Rename vpx_lpf_horizontal_edge_16() to vpx_lpf_horizontal_16_dual().
Change-Id: I798ca8fbbd657d06d3db2bfb0fb3321168f49e52
Note: some of these warnings are enabled by a combination of -Wunused
(added earlier) and -Wextra.
Cherry-picked from AOM 4790a69faaec8f03d65f64ff070f6ab4307dbb16
Expands use of (void)x; on unused variables. AOM only supports one codec
in codec_factory.h
Does not include changes to HandleDecodeResult. AOM removed
invalid_file_test.cc which does use the video parameter.
Does not enable -Wextra yet. There are more issues to fix.
BUG=webm:1069
Change-Id: I322a1366bd4fd6c0dec9e758c2d5e88e003b1cbf
assume __clang_major__==0 has the latest version of
_mm256_broadcastsi128_si256. fixes builds with custom clang toolchains.
BUG=b/30970831
Change-Id: I90becd56278e4716bd46e2ba9d910af977e8dfa6
This function only exists as a shortcut to subpixel variance with
predefined offsets. xoffset = 4 for horizontal, yoffset = 4 for vertical
and both for "hv"
Removing this allows the existing optimizations for the variance
functions to be called. Instead of having only sse2 optimizations, this
gives sse2, ssse3, msa and neon.
BUG=webm:1273
Change-Id: Ieb407b423b91b87d33c4263c6a1ad5e673b0efd6
disable clang-format for bilinear_filters_avx2
restores the row layout prior to:
099bd7f vpx_dsp: apply clang-format
but keeps the justification used by clang-format
Change-Id: Icf1733a37edb807e74c26b23a93963c03bd08fd7
The LLVM trunk has reached 4.0 and now __clang_major__ is not enough
to distinguish between old XCode Clang and the new 'real' Clang.
Using __apple_build_version__ allows to make this distinction.
BUG=chromium:631144
Change-Id: I0b6e46fddfe4f409c7b7e558bda34872e60ee2d9
Use pixel domain distortion metric in speed 0. This improves the
compression performance by 0.3% for both low and high resolution
test sets.
Change-Id: I5b5b7115960de73f0b5e5d0c69db305e490e6f1d
Speed test shows the new vertical filters have degradation on Celeron
Chromebook. Added "X86_SUBPIX_VFILTER_PREFER_SLOW_CELERON" to control
the vertical filters activated code. Now just simply active the code
without degradation on Celeron. Later there should be 2 set of vertical
filters ssse3 functions, and let jump table to choose based on CPU type.
Change-Id: Iba2f1f2fe059a9d142c396d03a6b8d2d3b981e87
Due to rounding, hbd variance may become negative. This commit put in
check and clamp of negative values to 0.
Change-Id: I610d9c8aa2d4eebe7bc5f2c5624a9e3cadad4c94
add a trailing ':', though it's optional with the tools we support, it's
more common to use it to mark a label. this also quiets the
orphan-labels warning with nasm/yasm.
BUG=b/29583530
Change-Id: I46e95255e12026dd542d9838e2dd3fbddf7b56e2
Speed test shows the new vertical filters have degradation on Celeron
Chromebook. Added "X86_SUBPIX_VFILTER_PREFER_SLOW_CELERON" to control
the vertical filters activated code. Now just simply active the code
without degradation on Celeron. Later there should be 2 set of vertical
filters ssse3 functions, and let jump table to choose based on CPU type.
Change-Id: I37e3e9c5694737d9134a6bce6698d3e43f8fc962
Replaced vpx_d45_predictor_4x4_ssse3(), vpx_d45_predictor_8x8_ssse3()
and vpx_d207_predictor_4x4_ssse3() with
created vpx_d45_predictor_4x4_sse2(), vpx_d45_predictor_8x8_sse2()
and vpx_d207_predictor_4x4_sse2() respectively.
It's mostly neutral or slightly worse than ssse3 in good cases and
better than ssse3 in the bad cases (but still worse than using the mmx
regs).
Change-Id: Ib0237ceb71d2c57b8a93fd3170330cfed9d56bdd
Followed the code style of other lpf fuctions.
These 2 functions put 2 rows of data in a single xmm register,
so they have similar but not identical filter operations,
and cannot share the same macros.
Change-Id: I3bab55a5d1a1232926ac8fd1f03251acc38302bc
This reverts commit 2468163e07.
causes valgrind errors for overread of buffer in SubpelVarianceTest
Change-Id: I448e52c76f815ac199305b71f7d169f2bc167679
This commit clarifies integer value range for vairables used in
several variance functions, also change to use proper type
conversion to reflect the value ranges.
Change-Id: Ic3234b83a912ce1ad12d1b254f3378763e15cc5c
In motion estimation stage for subpel motion, subpel variance is
computed use bilinear interpolation. The motion vector precision
used is at 1/8 pel and three bits are used to represent the x and y
subpel offsets. Based on this, the half pel check should be against
4, not 8.
Change-Id: I1f56fa1fa3f2f5e19a20d27983efe628557f170e
there are sse2 equivalents which is a reasonable modern baseline
Removed mmx variance functions:
vpx_get_mb_ss_mmx()
vpx_get8x8var_mmx()
vpx_get4x4var_mmx()
vpx_variance4x4_mmx()
vpx_variance8x8_mmx()
vpx_mse16x16_mmx()
vpx_variance16x16_mmx()
vpx_variance16x8_mmx()
vpx_variance8x16_mmx()
Change-Id: Iffaf85344c6676a3dd337c0645a2dd5deb2f86a1
In so doing this fixes a couple of bugs:
vpx_plane_add_noise.c needed to subtract a clamp instead of add.
And the assembly (mmx sse) had assumptions that parameters were
continuous in memory which was not true.
Change-Id: I76f2c43cf54bfc838eb2edf8a443eaaa7565d7b5
The product always fits in uint32_t, but the operands don't.
An optimizing compiler should generate the wraparound code.
(Verified with clang).
Change-Id: I25eb64df99152992bc898b8ccbb01d55c8d16e3c
