250 Commits

Author SHA1 Message Date
Frank Barchard
f249eaa72f [libyuv] Fix top 20 bugs and performance issues
1. Fix multi-bit TestCpuFlag(A | B) checks in AYUVToNV12, AYUVToNV21,
   RAWToRGBA, NV12ToRGB24Matrix, NV21ToRGB24Matrix, MergeRGBPlane, and
   MergeXR30Plane to compare == (A | B) so AVX-512 VBMI/BW kernels are
   not dispatched when AVX512VBMI or AVX512VL is absent.
2. Fix 2-byte SVE2 heap buffer overflow on odd widths in
   I422ToARGB1555Row_SVE_SC and I422ToARGB4444Row_SVE_SC using
   trn1/trn2 + st2b under .b predicates.
3. Fix ARGBPolynomialRow_SSE2 to use packssdw before packuswb, and add
   missing vzeroupper to SplitRGBRow_AVX2.
4. Fix CalcFrameSsim to return 0.0 instead of 0.0 / 0 (NaN) when
   width <= 8 || height <= 8 so I420Ssim stays finite on small frames.
5. Fix negative-height vertical inversion in ConvertFromI420,
   SplitARGBPlane (when dst_a is NULL), I422Rotate, I010Rotate, and
   I210Rotate.
6. Fix horizontal flip (negative x/dx) in ScaleFilterCols_NEON (signed
   sbfx #16, #16 offset extraction) and ScaleAddCols1_16_C (shift
   x >>= 16 before indexing src_ptr).
7. Fix ConvertToARGB odd crop_x chroma alignment in NV12/NV21, src_u
   offset in I420/YV12/J420/H420/U420, and FOURCC_U422 calling
   U422ToARGB instead of H422ToARGB.
8. Remove dead 14-instruction block in ScaleRowUp2_Bilinear_16_SSE2.
9. Fix UVScale_16 for src_width == 1 (P010ToP410/P210ToP410), enable
   and fix column order in TransposeWx4_32_SVE2, fix ByteToFloatRow
   NEON Any BPP (3 -> 4), fix AB64ToARGBRow_Any_*, ScaleColsUp2_SSE2,
   ScaleUVRowDown2Box_SME, and UYVYToARGBRow_SME macro guards, fix SVE2
   loop tail branches (b.lt/b.ge), and remove duplicate HAS_* macros.
10. Fix ConvertFP16ToFP32Column_NEON loop condition and unsigned b.lo
    underflow on widths < 8 or not multiples of 8.
11. Fix UYVYToNV12 IS_ALIGNED(awidth, ...) checks and WASM SIMD
    IS_ALIGNED(width, 16) checks in I420ToRGB24Matrix /
    I422ToRGB24Matrix.
12. Wire SplitUVRow_SVE2, SplitUVRow_LSX, and SplitUVRow_LASX in
    NV24ToARGB.
13. Fix MJpegDecoder heap buffer overflows in LoadFrame (reallocate
    databuf_[i] when scanlines_size changes), DecodeToBuffers, and
    DecodeToCallback (clamp scanlines_to_copy to lines_left and align
    skip to max_v_samp_factor).
14. Replace width & (vl - 1) tail calculations with post-loop remainder
    across 18 SVE2 functions in row_sve.h for non-power-of-2 SVE VL,
    and remove duplicate label 2: in UYVYToARGBRow_SVE_SC.
15. Handle width & 15 tail pixels in DetileToYUY2_C and validate
    IS_POWEROFTWO(tile_height) in DetileSplitUVPlane and DetileToYUY2.
16. Avoid signed 32-bit overflow in DivideRow_16_C and C16TO8, fix
    ClampFloatToZero_SSE2 pointer increment (lea 0x4) and loop counter
    (sub $0x1), and initialize xmm3 in ARGBCopyYToAlphaRow_SSE2.
17. Check max leaf 7 subleaf and max extended CPUID leaf in GetCpuFlags
    before querying subleaf 7:1 and extended leaf 0x80000021.
18. Free plane_u on error in I422ToNV21, and fix 4x/2x scratch row
    over-allocation in ScaleARGBBilinearDown and ScaleUVBilinearDown.
19. Add ARGBSetRow_RVV and ARGBShuffleRow_RVV in row_rvv.cc.
20. Fix NEON mask (15 -> 7) in ScaleUVRowUp2_Linear_Any_NEON /
    _16_Any_NEON, use SIMD InterpolateRow + SplitUVRow in NV16ToI420,
    wire SSSE3/SSE2 in ARGBToI400Matrix / ARGBToYUY2Matrix /
    ARGBToUYVYMatrix and RGB24Mirror, and split HalfFloatRow multiply
    into (src * scale) * 2^-112 to avoid 50x Intel denormal stalls.

Bug: b/574714081
Test: libyuv_unittest
Change-Id: Iec3ae5c58d52bee3ef13cf9b765ac84b733aa576
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/8601931
Reviewed-by: richard winterton <rrwinterton@gmail.com>
Commit-Queue: Frank Barchard <fbarchard@google.com>
2026-10-19 16:46:40 -07:00
Frank Barchard
700f153cb8 [libyuv] Add Qualcomm Hexagon HVX SIMD support
Implement Qualcomm Hexagon Vector Extensions (HVX) 128-byte SIMD
optimizations and runtime CPU detection for Hexagon DSP targets:
- CPU detection: Add kCpuHasHexagon and kCpuHasHVX flags,
  LIBYUV_DISABLE_HVX environment variable support, and Hexagon
  unit_test mmap/munmap shims.
- Rotate/Transpose (rotate_hvx.cc): Implement TransposeWxH_HVX,
  TransposeUVWxH_HVX, TransposeWxH_16_HVX, and TransposeWxH_32_HVX
  using power-of-2 vdeal/vshuff butterfly networks.
- Compare (compare_hvx.cc): Implement HammingDistance_HVX,
  SumSquareError_HVX, HashDjb2_HVX, and Ssim4x4Row_HVX.
- Scale (scale_hvx.cc): Implement 16 scale row kernels including
  ScaleAddRow_HVX, ScaleRowDown2*_HVX (8-bit and 16-bit),
  ScaleRowDown4*_HVX, ScaleARGBRowDown2*_HVX, and
  ScaleUVRowDown2*_HVX.
- Row functions (row_hvx.cc): Implement 58 row kernels covering
  copy/set/mirror, split/merge, 8/16-bit conversions, YUV-to-ARGB,
  ARGB-to-YUV, ARGB channel swizzles, blend, attenuate, and
  interpolate using hardware-predicated partial loads/stores.

R=rrwinterton@gmail.com

Bug: None
Test: libyuv_unittest on Hexagon v81 simulator and Snapdragon 8 Elite
Change-Id: Ib6713de51f6246d95e58c95e629ff03f18e3b91e
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/8604586
Reviewed-by: richard winterton <rrwinterton@gmail.com>
2026-10-19 14:16:18 -07:00
Frank Barchard
2404f9730e [libyuv] Rewrite LoongArch LSX/LASX kernels in compact inline asm
Reduce loop unrolling across LoongArch LSX (128-bit) and LASX (256-bit)
compare, row, rotate, and scale kernels to match SSE2/SSSE3 and AVX2
(1-2 vectors per iteration), rewrite intrinsics/macro implementations
into GCC/Clang inline assembly, update all _Any wrapper masks and
IS_ALIGNED dispatch checks, and port all remaining LSX Convert (+19) and
Rotate (+2) kernels to LASX for full parity:

ISA              | Compare | Convert | Rotate  | Scale
-----------------|---------|---------|---------|--------
MIPS/Loong (Any) |    1    |    68   |    4    |   20
  LSX            |    1    |    68   |    4    |   20
  LASX           |    1    |    68   |    4    |    0

Removes 1,935 macro/helper lines from loongson_intrinsics.h (-99.3%) and
reduces total LoongArch compiled .text size by 9,799 bytes (-25.1%
overall, -37.4% row_lsx.cc, -52.3% scale_lsx.cc, -31.2% rotate_lsx.cc,
-4.9% row_lasx.cc while adding +25 LASX functions):

File               | Before   | After    | Change
-------------------|----------|----------|--------
scale_lsx.cc.o     | 6,055 B  | 2,888 B  | -52.3%
row_lsx.cc.o       | 17,252 B | 10,792 B | -37.4%
rotate_lsx.cc.o    | 1,488 B  | 1,024 B  | -31.2%
row_lasx.cc.o      | 13,740 B | 13,072 B |  -4.9%
rotate_lasx.cc.o   |   544 B  | 1,504 B  | +176.5%
TOTAL .text        | 39,079 B | 29,280 B | -25.1%

R=wtc@google.com, yuanhecai@loongson.cn

Test: qemu-loongarch64 -cpu la464 libyuv_unittest (LASX and LIBYUV_DISABLE_LASX=1)
Change-Id: I11c1143ad2aad0399f10b2c3fc9bc4c02c740c59
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/8564659
Reviewed-by: richard winterton <rrwinterton@gmail.com>
2026-10-16 17:25:23 -07:00
Frank Barchard
b9d572cc63 Add 25 native k-masked AVX-512 row kernels
R=rrwinterton@gmail.com

Bug: None
Change-Id: I2ee9b2c2d939f63f49d2f951f2d552ca6863d78b
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/8564927
Commit-Queue: Frank Barchard <fbarchard@google.com>
Reviewed-by: richard winterton <rrwinterton@gmail.com>
2026-10-12 18:14:41 -07:00
Frank Barchard
63b56324de [libyuv] Replace AVX-512 _Any wrappers with k-mask tail handling
Replace stack-buffer memcpy _Any wrappers with native AVX-512 k-mask
tail handling across 8 AVX-512 row kernels (unlocking composite
RGBToUVMatrixRow_AVX512BW as well) and remove IS_ALIGNED dispatch
constraints:
- MirrorSplitUVRow_AVX512BW: Masked 16-bit load (vmovdqu16 %{k1%}%{z%}),
  dynamic reverse index (vpsubw + vpermw via kMirrorUVPermute_AVX512),
  and vpmovwb %{k1%} U/V stores; unlocks unaligned SplitRotateUV180.
- ARGBToUVMatrixRow_AVX512BW: Fix MASK=63 vs 32-pixel loop bug;
  zero-load tail dwords per row, duplicate odd final pixel via knotw +
  vpshufd, and store masked U/V bytes.
- I422ToARGBRow_AVX512BW & I422ToAR30Row_AVX512BW: Add masked Y/U/V
  loads (READYUV422_MASK_AVX512BW) and masked ARGB/AR30 stores.
- CopyRow_AVX512BW: Add 64-byte full vector step + bzhi masked tail.
- BlendPlaneRow_AVX512BW, ARGBShuffleRow_AVX512BW, RGBToARGBRow_AVX512BW
  (RAWToARGBRow_AVX512BW / RGB24ToARGBRow_AVX512BW): Masked loads and
  stores in both row_gcc.cc inline assembly and row_win.cc intrinsics.

Reduces x86-64 binary .text size by 2,592 bytes with 0 bytes added to
.rodata.

Performance on Intel Sapphire Rapids (1275x1650, 1000 iterations):
Function (Test)          | Before  | After   | Speedup
-------------------------|---------|---------|--------
NV12Rotate180_Opt        | 429 ms  | 260 ms  | 1.65x
RGB24ToI420_Opt          | 615 ms  | 531 ms  | 1.16x
I420ToAR30_Opt           | 425 ms  | 383 ms  | 1.11x
ARGBToI420_Opt           | 427 ms  | 411 ms  | 1.04x
I420ToARGB_Opt           | 423 ms  | 411 ms  | 1.03x
RGB24ToARGB_Opt          | 493 ms  | 490 ms  | 1.01x
ARGBToBGRA_Opt           | 544 ms  | 542 ms  | 1.00x
CopyPlane_Opt            | 246 ms  | 245 ms  | 1.00x
BlendPlane_Opt           | 259 ms  | 258 ms  | 1.00x
RAWToARGB_Opt            | 486 ms  | 486 ms  | 1.00x

R=rrwinterton@gmail.com

Test: LIBYUV_WIDTH=1275 LIBYUV_HEIGHT=1650 LIBYUV_REPEAT=1000 out/Release/libyuv_unittest
Change-Id: Ib5e5ae52076352649108b20f8df2b12d81860fb1
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/8563977
Reviewed-by: richard winterton <rrwinterton@gmail.com>
2026-10-12 15:33:19 -07:00
Frank Barchard
98697ab033 [libyuv] Add WASM SIMD128 compare, rotate, scale and row functions
d8 geomean speedup vs C compiled with -O2 -msimd128:
File            AMD Zen 3  ARM Neoverse-V2
row_wasm.cc         5.67x            3.24x
scale_wasm.cc       5.47x            3.17x
compare_wasm.cc     4.58x            5.77x
rotate_wasm.cc      6.83x            6.03x

Bug: None
Change-Id: Ia06c805dc4029f94842c40e7301b2933beb8c1e5
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/8524106
Reviewed-by: richard winterton <rrwinterton@gmail.com>
2026-10-06 19:05:05 -07:00
Frank Barchard
2124173f34 I422ToRGB24 avx512bw tail and row coalesce
I422ToRGB24Matrix (299x299, repeat=10000)
====================================================================
CPU                        Before       After            Improvement
--------------------------------------------------------------------
Intel Skylake-X            275 ms       213 ms       -22.5% (1.29x)
Intel Ice Lake             225 ms       177 ms       -21.3% (1.27x)
Intel Sapphire Rapids      181 ms       144 ms       -20.4% (1.26x)
Intel Emerald Rapids       167 ms       136 ms       -18.6% (1.23x)
Intel Granite Rapids       170 ms       140 ms       -17.6% (1.21x)
AMD Zen 4 (Genoa)          192 ms       136 ms       -29.2% (1.41x)
AMD Zen 5 (Turin)          102 ms        68 ms       -33.3% (1.50x)
AMD Zen 6 (Venice)         102 ms        60 ms       -41.2% (1.70x)
====================================================================

I422ToRGB24Matrix (298x299, repeat=10000)
====================================================================
CPU                        Before       After            Improvement
--------------------------------------------------------------------
Intel Skylake-X            271 ms       184 ms       -32.1% (1.47x)
Intel Ice Lake             235 ms       152 ms       -35.3% (1.55x)
Intel Sapphire Rapids      199 ms       128 ms       -35.7% (1.55x)
Intel Emerald Rapids       170 ms       121 ms       -28.8% (1.40x)
Intel Granite Rapids       177 ms       125 ms       -29.4% (1.42x)
AMD Zen 4 (Genoa)          185 ms       119 ms       -35.7% (1.55x)
AMD Zen 5 (Turin)          102 ms        59 ms       -42.2% (1.73x)
AMD Zen 6 (Venice)         100 ms        51 ms       -49.0% (1.96x)
====================================================================

Bug: None
Change-Id: Id75e3d1df6d26bc28a252672816a7c438cb664a4
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/8452502
Reviewed-by: richard winterton <rrwinterton@gmail.com>
Commit-Queue: Frank Barchard <fbarchard@google.com>
2026-09-24 12:07:29 -07:00
Frank Barchard
41a6e684a6 I422ToRGB24Row_AVX512VBMI handle tail with mask
I422ToRGB24Matrix (299x299, repeat=10000)
====================================================================
CPU                        Before       After            Improvement
--------------------------------------------------------------------
Intel Ice Lake             220 ms       181 ms       -17.7% (1.22x)
Intel Sapphire Rapids      181 ms       145 ms       -19.9% (1.25x)
Intel Emerald Rapids       169 ms       148 ms       -12.4% (1.14x)
Intel Granite Rapids       191 ms       141 ms       -26.2% (1.35x)
AMD Zen 4 (Genoa)          171 ms       136 ms       -20.5% (1.26x)
AMD Zen 5 (Turin)           94 ms        72 ms       -23.4% (1.31x)
AMD Zen 6 (Venice)          95 ms        66 ms       -30.5% (1.44x)
====================================================================

Bug: None
Change-Id: I4cd657410cc5253b5e8fd2caa78d17e2b3812393
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/8445804
Reviewed-by: richard winterton <rrwinterton@gmail.com>
Commit-Queue: Frank Barchard <fbarchard@google.com>
2026-09-23 22:42:30 -07:00
Sida Zhu
dab3111c8a convert, scale: Add P010/P210/P410 convert paths and NV16/NV24/Px10 scale
P010 and P210 were auxiliary FourCCs and P410 did not exist, so
ConvertToI420, ConvertToARGB, and ConvertFromI420 could not consume or
produce them. Callers had to pick I010/I210 helpers and pack UV by hand.
NV12Scale existed, but NV16/NV24 and P010/P210/P410 had no Scale APIs.

Promote P010 and P210 to primary FourCCs, add FOURCC_P410, and add the
I4xx/Px10 converters those entry points need: I410ToP410, I412ToP412,
P210ToI210, P410ToI410, P010/P210/P410ToI420, I420ToP010/P210/P410,
I422ToP210, I444ToP410, and P410ToARGB/AR30Matrix.

Add NV16Scale (same path as NV12Scale: ScalePlane + UVScale).
Add P010Scale, P210Scale, and P410Scale: 10-bit samples stay in the MSBs, so Y/UV convert to 10-bit LSB, ScalePlane_16, then back to MSB.

UVScale_16 cannot general-scale, so UV is split, scaled as planes, and merged.

Packed-plane layout, odd-width strides, ConvertTo/From round-trips, and
the existing scale factor/size/swap tests cover the new APIs.

Bug: 537818862
Change-Id: I1ae5e6cad5e6d83acf1d0df69f94c23688bbe0e8
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/8346569
Reviewed-by: Frank Barchard <fbarchard@google.com>
Reviewed-by: richard winterton <rrwinterton@gmail.com>
2026-09-23 20:43:22 -07:00
Frank Barchard
e111db837a Add I422ToAR30Row_RVV for RISC-V Vector
Bug: none
Change-Id: I39f28554b455356c4494c5bea5bdbb04aefff22c
TAG=agy
CONV=abcd6ba2-e3a4-49ba-a3fc-3b6b55b83509
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/8311933
Commit-Queue: Frank Barchard <fbarchard@google.com>
Reviewed-by: Wan-Teh Chang <wtc@google.com>
2026-09-01 17:00:40 -07:00
Frank Barchard
0f36c7f808 STORERGB24 macros for avx512
- improves I420ToRAW performance

I420ToRAW on Skylake
  Was AVX2
    I420ToRAW_Opt (262 ms)
  Now AVX512
    I420ToRAW_Opt (212 ms)

I420ToRAW on Icelake with avx512vbmi
  Was I420ToRAW_Opt (200 ms)
  Now I420ToRAW_Opt (187 ms)

Bug: None
Change-Id: If5b171801ba931557d379696fc128d9b155f7c44
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/8267746
Commit-Queue: Frank Barchard <fbarchard@google.com>
Reviewed-by: richard winterton <rrwinterton@gmail.com>
2026-08-18 14:18:47 -07:00
Frank Barchard
6fa5264292 ARGBToRGB565Dither fix for unaligned dither matrix
Copy dither4x4 (16 bytes) into an aligned local uint32_t dither4[4] array
using memcpy and index using dither4[y & 3] to avoid unaligned 32-bit
pointer dereference traps in fastbuild / UB sanitizers.

Bug: None
Test: LibYUVConvertTest.TestNoDither, LibYUVConvertTest.TestDither
Change-Id: I4447cd2924b16739a9bce2792d57a550dedeb345
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/8262354
Reviewed-by: richard winterton <rrwinterton@gmail.com>
Commit-Queue: Frank Barchard <fbarchard@google.com>
Reviewed-by: Wan-Teh Chang <wtc@google.com>
2026-08-14 17:27:08 -07:00
Frank Barchard
c20b35a7bc I420ToAR30 add avx512bw support
Benchmark for 720p 1000 images
CPU Architecture          AVX2 (us)   AVX512 (us)   Speedup    Change
---------------------------------------------------------------------
Intel Skylake                325          229        1.42x     -29.5%
Intel Cascade Lake           289          213        1.36x     -26.3%
Intel Granite Rapids         209          168        1.24x     -19.6%
AMD Zen 4                    168          165        1.02x      -1.8%
AMD Zen 5 (Turin)            180          112        1.61x     -37.8%

Bug: None
Change-Id: I3d07c9b36196305ba7ff63973246c080ff872367
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/8251940
Reviewed-by: richard winterton <rrwinterton@gmail.com>
Commit-Queue: Frank Barchard <fbarchard@google.com>
Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
2026-08-13 15:40:19 -07:00
Frank Barchard
86a4d94d7a I420ToRAW and I420ToRGB24 1 pass AVX2 and AVX512VBMI
- Implemented `I422ToRGB24Row_AVX2` and `I422ToRGB24Row_AVX512VBMI` in:
 - `row_gcc.cc`: Inline assembly for GCC/Clang.
 - `row_win.cc`: C++ intrinsics for MSVC (also verified with Clang).

Reduced width alignment requirement: changed from 32-pixel to 16-pixel
alignment in `convert_argb.cc` and `row_any.cc`. This allows the AVX2
path to be used for more common video resolutions.

```
I420ToRAW vs Rust on Icelake Xeon
Size        I420ToRAW     yuv420_to_rgb  iterations
-------     ---------   ---------------  ----------
640x480         57 us    77.377 µs/iter     3000
1280x720       170 us   221.671 µs/iter     1000
1920x1080      396 us   494.324 µs/iter      500
3840x2160     2040 us      2357 µs/iter      200
```

Bug: 42280902
Change-Id: I07c0505c95410ea16a6218c858844791a11ef073
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/7908323
Reviewed-by: Wan-Teh Chang <wtc@google.com>
Reviewed-by: richard winterton <rrwinterton@gmail.com>
Commit-Queue: Frank Barchard <fbarchard@google.com>
2026-07-20 18:15:10 -07:00
Frank Barchard
3bdb3b94ca I420ToRAW use 2 step AVX512
On Icelake
Was AVX2
I420ToRAW_Opt (283 ms)
  67.55%  I422ToARGBRow_AVX2
  26.46%  ARGBToRGB24Row_AVX2

Now AVX512VBMI
I420ToRAW_Opt (238 ms)
  73.08%  I422ToARGBRow_AVX512BW
  21.59%  ARGBToRGB24Row_AVX512VBMI

Bug: 42280902
Change-Id: I9d4d21faed30c529a5e593819f103be115709f37
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/7909924
Reviewed-by: richard winterton <rrwinterton@gmail.com>
Commit-Queue: Frank Barchard <fbarchard@google.com>
2026-06-08 14:32:13 -07:00
Frank Barchard
4be798d7c5 BGRAToI420 use BgraConstants for a direct conversion using AVX512BW
row win (msvc)
Was C/SSSE3
BGRAToARGB_Opt (594 ms)
BGRAToARGB_Endswap_Opt (609 ms)
BGRAToI420_Opt (122 ms)

Now AVX2
BGRAToARGB_Opt (100 ms)
BGRAToARGB_Endswap_Opt (99 ms)
BGRAToI420_Opt (115 ms)

Clang/GCC AVX512BW
BGRAToARGB_Opt (86 ms)
BGRAToARGB_Endswap_Opt (91 ms)
BGRAToI420_Opt (110 ms)


Bug: 42280902
Change-Id: I52cb2b0cacea8f2f0b138ec3cc521185dbef8595
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/7905821
Commit-Queue: Frank Barchard <fbarchard@google.com>
Reviewed-by: richard winterton <rrwinterton@gmail.com>
2026-06-08 12:21:47 -07:00
Wan-Teh Chang
62fffa9eeb Fix integer overflow when flipping negative height
Treat height == INT_MIN as invalid. Omit explicit height == INT_MIN
check if we disallow height < 32768.

Perform multiplications of stride in the ptrdiff_t type.

Add checks for invalid width and height to some functions.

Bug: 518806561
Change-Id: I5e39fffed7f806852a8758d4b59df919839c0a3b
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/7891415
Reviewed-by: Frank Barchard <fbarchard@google.com>
Commit-Queue: Wan-Teh Chang <wtc@google.com>
2026-06-03 16:17:37 -07:00
Frank Barchard
e14b0e2c60 RGB565ToARGB use AVX2 instead of SSE2
Now AVX2/AVX512
ARGB4444ToI420_Opt (204 ms)
RGB565ToI420_Opt (211 ms)
ARGB1555ToI420_Opt (231 ms)
RAWToI420_Opt (197 ms)
RGB24ToI420_Opt (197 ms)

Was SSE2/AVX2
ARGB4444ToI420_Opt (276 ms)
RGB565ToI420_Opt (292 ms)
ARGB1555ToI420_Opt (332 ms)
RAWToI420_Opt (237 ms)
RGB24ToI420_Opt (232 ms)

Bug: libyuv:508639302
Change-Id: I2005189d1b6af15cb5ebef1f6d66b426fa9df8eb
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/7891416
Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
Commit-Queue: Frank Barchard <fbarchard@google.com>
2026-06-02 18:28:02 -07:00
Wan-Teh Chang
d2c6dd5e6a Fix integer overflow in two convert functions
Fix integer overflow in buffer allocation size calculations in the
align_buffer_64() macro and the I422ToNV21() and
Android420ToARGBMatrix() functions.

Based on a CL autogenerated by MendIt (go/androidmendit):
https://googleplex-android-review.googlesource.com/c/platform/external/libyuv/+/39981732

Bug: 511821134
Change-Id: Ie1728c3ad337d460d9b85979489a817cc97e3bf3
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/7886817
Reviewed-by: Frank Barchard <fbarchard@google.com>
Commit-Queue: Wan-Teh Chang <wtc@google.com>
2026-05-29 19:26:14 -07:00
Wan-Teh Chang
c98edcc8dc Don't coalesce rows if width*height would overflow
Audit all occurrences of "width *= height;" in the libyuv source code.
Make sure height > 0 and (ptrdiff_t)width * height <= INT_MAX before
executing width *= height.

Bug: chromium:517339758
Change-Id: I143a41c66492a6e4c48b6aa2a1c4a2ae974ceeb1
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/7883816
Commit-Queue: Wan-Teh Chang <wtc@google.com>
Reviewed-by: Frank Barchard <fbarchard@google.com>
2026-05-29 11:57:47 -07:00
Frank Barchard
e449eb2172 J400ToARGB switch from SSE2 to AVX2
- port for row_win
- remove unused HAS_ macros

Was C/SSE2
MSVC  J400ToARGB_Opt (1967 ms)
Clang J400ToARGB_Opt (568 ms)

Now AVX2
MSVC  J400ToARGB_Opt (411 ms)
Clang J400ToARGB_Opt (418 ms)

Test: libyuv_unittest --gtest_filter=*J400ToARGB*
Bug: libyuv:508639302

Change-Id: Ifdfb026832b708b61f55477250cc5ee52449f421
TAG=agy
CONV=186608fc-966a-4ea7-bf57-9fe07cc1383c
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/7877368
Commit-Queue: Frank Barchard <fbarchard@google.com>
Reviewed-by: Justin Green <greenjustin@google.com>
2026-05-28 21:24:32 -07:00
Frank Barchard
4afb965416 RAWToARGB use AVX512BW
Bug: libyuv:42280902
Change-Id: I7a80fd64d97b6d411316819df0fd917d609a173b
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/7787163
Reviewed-by: richard winterton <rrwinterton@gmail.com>
Commit-Queue: Frank Barchard <fbarchard@google.com>
2026-04-22 16:56:46 -07:00
Frank Barchard
bd2c4c76ec RAWToARGB AVX512VBMI
Bug: libyuv:42280902
Change-Id: I1c7f432f004079357a00515785bc524c459ed4b9
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/7787160
Reviewed-by: richard winterton <rrwinterton@gmail.com>
Commit-Queue: Frank Barchard <fbarchard@google.com>
2026-04-22 14:48:29 -07:00
Frank Barchard
d445250d8b Replace RAWToY/RGB24ToY with RGBToYMatrix
Bug: libyuv:42280902
Change-Id: I6ddebd492036c416550fc045eb39493dea73246b
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/7784094
Commit-Queue: Frank Barchard <fbarchard@google.com>
Reviewed-by: richard winterton <rrwinterton@gmail.com>
2026-04-21 17:11:14 -07:00
Chema Gonzalez
dec8272138 Fix typo
Change-Id: I4dea1bcacc7d10dd2db74f4b221db42e2deade83
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/7762903
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
Reviewed-by: richard winterton <rrwinterton@gmail.com>
2026-04-16 14:27:40 -07:00
Frank Barchard
59ca5d8074 Fix parameter names and comments for ARGB/BGRA/RGBA/ABGR functions
In all functions that start with ARGB, BGRA, RGBA or ABGR in the include/libyuv/ headers, make sure the parameter variable name has the same 4 letters, but lower case, and the comment before the function should have the same matching name. Then make sure the implementation in source/ folder has the same variable names.

Change-Id: Idadbbbb993156eea16e318719f4888cb3bed5f6a
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/7760057
Reviewed-by: richard winterton <rrwinterton@gmail.com>
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
2026-04-13 18:28:37 -07:00
Frank Barchard
2b4453d46f Deprecate MIPS and MSA support.
- Remove *_msa.cc source files
- Update build files
- Update header references, planar ifdefs for row functions
- Update documentation on supported platforms
- Version bumped to 1921
- clang-format applied

Bug: 434383432
Change-Id: I072d6aac4956f0ed668e64614ac8557612171f76
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/7045953
Reviewed-by: Justin Green <greenjustin@google.com>
2025-10-16 12:20:40 -07:00
George Steed
7e5863ae5a Add SVE2 and SME implementations of I422ToAR30Row
This can make use of the existing load/convert/store macros that are
already present for other kernels, so add I422ToAR30Row_SVE2 and
I422ToAR30Row_SME to match the existing kernels.

Reduction in time taken observed for the new SVE2 implementation,
compared to the existing Neon implementation:

Cortex-A510: -9.1%
Cortex-A520: +6.8% (!)
Cortex-A710: -4.0%
Cortex-A715: -1.1%
Cortex-A720: -1.1%
  Cortex-X2: -5.7%
  Cortex-X3: -5.9%
  Cortex-X4: -2.8%
Cortex-X925: -4.0%

Change-Id: Ibf8bfaaeaba51f426649ded621cb0c8948dd9ee1
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/6592332
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
2025-05-27 11:39:00 -07:00
George Steed
949cb623bf Add SVE2 and SME implementations of I444ToRGB24Row
Move the READYUV444_SVE_2X and I444TORGB_SVE_2X macros to row_sve.h so
they are usable in both SVE2 and SME implementations, and use them to
add new I444ToRGB24Row implementations for SVE2 and SME. We need to use
the unrolled versions here to use the ST3B interleaving store
instructions, since there is no partial vector version of this store
instruction.

Reduction in time taken observed for the new SVE2 implementation,
compared to the existing Neon implementation:

Cortex-A510: -57.6%
Cortex-A520: -38.1%
Cortex-A710: -15.5%
Cortex-A715:  -9.2%
Cortex-A720:  -9.2%
  Cortex-X2: -25.8%
  Cortex-X3: -26.2%
  Cortex-X4: -23.2%
Cortex-X925: -17.8%

Change-Id: I6acd0b798a35e5352d4fad664769f12d3d938ed7
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/6530646
Reviewed-by: Justin Green <greenjustin@google.com>
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
2025-05-22 13:33:06 -07:00
Frank Barchard
61354d2671 ARGBToUV Matrix for AVX2 and SSSE3
- Round before shifting to 8 bit to match NEON
  - RAWToARGB use unaligned loads and port to AVX2

Was C/SSSE/AVX2
ARGBToI444_Opt (343 ms)
ARGBToJ444_Opt (677 ms)
RAWToI444_Opt (405 ms)
RAWToJ444_Opt (803 ms)

Now AVX2
ARGBToI444_Opt (283 ms)
ARGBToJ444_Opt (284 ms)
RAWToI444_Opt (316 ms)
RAWToJ444_Opt (339 ms)

Profile Now AVX2
  38.31%  ARGBToUVJ444Row_AVX2
  32.31%  RAWToARGBRow_AVX2
  23.99%  ARGBToYJRow_AVX2

Profile Was C/SSSE/AVX2
    73.15%  ARGBToUVJ444Row_C
    15.74%  RAWToARGBRow_SSSE3
     8.87%  ARGBToYJRow_AVX2

Bug: 381138208
Change-Id: I696b2d83435bc985aa38df831e01ff1a658da56e
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/6231592
Reviewed-by: Wan-Teh Chang <wtc@google.com>
Reviewed-by: Ben Weiss <bweiss@google.com>
Reviewed-by: richard winterton <rrwinterton@gmail.com>
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
2025-02-10 18:36:18 -08:00
George Steed
7fd0bd197e [AArch64] Port YUVToRGB color conversions to SME
Some of the color conversion kernels already have Streaming-SVE
implementations however many do not. We can re-use the existing SVE
implementation by moving it to a new shared row_sve.h header and marking
it with a "streaming-compatible" attribute to ensure it can be called
from both streaming and non-streaming execution modes.

As part of this move to a common header we also add duplicated
streaming-mode implementations of the following kernels that did not
previously have an SME implementation:

- I210AlphaToARGBRow_SME
- I210ToAR30Row_SME
- I210ToARGBRow_SME
- I212ToAR30Row_SME
- I212ToARGBRow_SME
- I400ToARGBRow_SME
- I410AlphaToARGBRow_SME
- I410ToAR30Row_SME
- I410ToARGBRow_SME
- I422AlphaToARGBRow_SME
- I422ToARGB1555Row_SME
- I422ToARGB4444Row_SME
- I422ToRGB24Row_SME
- I422ToRGB565Row_SME
- I422ToRGBARow_SME
- I444AlphaToARGBRow_SME
- NV12ToARGBRow_SME
- NV12ToRGB24Row_SME
- NV21ToARGBRow_SME
- NV21ToRGB24Row_SME
- P210ToAR30Row_SME
- P210ToARGBRow_SME
- P410ToAR30Row_SME
- P410ToARGBRow_SME
- UYVYToARGBRow_SME
- YUY2ToARGBRow_SME

Change-Id: I84583478e465351cbe6fc0ec65254c3009922e84
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/6087804
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
2024-12-12 03:07:54 -08:00
George Steed
8f659daffd [AArch64] Add SVE2 implementations of NV{12,21}ToRGB24Row
Now that we have the `_2X` versions of the macros we can use these to
implement `ToRGB24` kernels. These cannot use the bottom/top approach
previously used by other SVE kernels since there are three rather than
two or four elements each.

Reduction in runtimes observed compared to the existing Neon
implementations:

            | NV12ToRGB24Row | NV21ToRGB24Row
Cortex-A510 |         -60.7% |         -60.7%
Cortex-A520 |         -46.0% |         -46.0%
Cortex-A715 |         -25.2% |         -25.2%
Cortex-A720 |         -25.2% |         -25.2%
  Cortex-X2 |         -28.9% |         -29.0%
  Cortex-X3 |         -28.2% |         -28.1%
  Cortex-X4 |         -30.8% |         -30.7%
Cortex-X925 |         -28.8% |         -28.9%

Change-Id: I39853d124bfdcac38584109870b398b8ecd5b632
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/6067149
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
2024-12-04 17:51:08 +00:00
Hao Chen
532126bf70 Fix bugs in ARGBAttenuateRow_LASX/LSX function
Fix errors in ARGBAttenuateRow_LASX and ARGBAttenuateRow_LSX functions
caused by changes in calculation methods.
In addition, add the option to automatically add "-mlsx" and "-mlasx" to
enable SIMD optimization when compiling with cmake on LoongArch
platform.

Bug: libyuv:913
Change-Id: I7215f5198d3fb94f981d60969dc21a483006023e
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/5802829
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
Reviewed-by: Ben Weiss <bweiss@google.com>
2024-11-30 23:09:04 +00:00
George Steed
9ed07258c7 [AArch64] Add SVE2 implementation of I410ToAR30Row
Observed reduction in runtime compared to the existing Neon code:

Cortex-A510: -18.1%
Cortex-A520:  -6.0%
Cortex-A715: -22.0%
Cortex-A720: -21.1%
  Cortex-X2:  -9.4%
  Cortex-X3: -12.0%
  Cortex-X4:  -7.6%
Cortex-X925:  -5.8%

Bug: b/42280942
Change-Id: I853a028e08f1f1076ac20cd9c7f4f8ac8a211ac1
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/6023584
Reviewed-by: Justin Green <greenjustin@google.com>
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
2024-11-23 00:59:55 +00:00
George Steed
3dd047733e [AArch64] Add SVE2 implementation of I410AlphaToARGBRow
Observed reduction in runtime compared to the existing Neon code:

Cortex-A510: -37.2%
Cortex-A520:  -6.9%
Cortex-A715: -14.8%
Cortex-A720: -16.0%
  Cortex-X2: -14.8%
  Cortex-X3: -17.5%
  Cortex-X4: -12.8%
Cortex-X925: -13.0%

Bug: b/42280942
Change-Id: I1977fd1e1dfac25021724483fd89c6ff3e227d8b
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/6023582
Reviewed-by: Justin Green <greenjustin@google.com>
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
2024-11-23 00:58:11 +00:00
George Steed
e84d809348 [AArch64] Add SVE2 implementation of I410ToARGBRow
Observed reduction in runtime compared to the existing Neon code:

Cortex-A510: -37.9%
Cortex-A520:  -9.2%
Cortex-A715: -14.3%
Cortex-A720: -14.2%
  Cortex-X2: -10.9%
  Cortex-X3: -11.1%
  Cortex-X4: -12.5%
Cortex-X925: -10.6%

Bug: b/42280942
Change-Id: I6720b07c900c7dfbd849ee38e413e98b9374dac2
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/6023581
Reviewed-by: Justin Green <greenjustin@google.com>
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
2024-11-23 00:54:48 +00:00
George Steed
7c9c72ab4b [AArch64] Add SVE2 implementation of I210ToAR30Row
Observed reduction in runtime compared to the existing Neon code:

Cortex-A510: -15.5%
Cortex-A520:  -3.8%
Cortex-A715: -15.8%
Cortex-A720: -15.8%
  Cortex-X2:  -7.9%
  Cortex-X3:  -6.5%
  Cortex-X4:  -5.0%
Cortex-X925:  -5.3%

Bug: b/42280942
Change-Id: I5171537fd125b3214d25a0ae503a8f40dbeb6042
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/6023583
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
Reviewed-by: Justin Green <greenjustin@google.com>
2024-11-23 00:53:16 +00:00
George Steed
fc3569ad27 [AArch64] Add SVE2 implementation of I210AlphaToARGBRow
Observed reduction in runtime compared to the existing Neon code:

Cortex-A510: -33.9%
Cortex-A520:  -4.2%
Cortex-A715: -22.0%
Cortex-A720: -22.4%
  Cortex-X2: -14.6%
  Cortex-X3: -14.5%
  Cortex-X4: -11.6%
Cortex-X925: -12.6%

Bug: b/42280942
Change-Id: Ifb4ed7a865c369d584af498cc65b84d065cfb207
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/6023580
Reviewed-by: Justin Green <greenjustin@google.com>
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
2024-11-23 00:47:32 +00:00
George Steed
50108f29fb [AArch64] Add SVE2 implementation of I212ToAR30Row
Observed reduction in runtime compared to the existing Neon code:

Cortex-A510: -15.4%
Cortex-A520:  -3.8%
Cortex-A715: -15.7%
Cortex-A720: -15.6%
  Cortex-X2:  -7.9%
  Cortex-X3:  -5.7%
  Cortex-X4:  -5.3%
Cortex-X925:  -4.8%

Bug: b/42280942
Change-Id: I99846820682687c8e0f52d05f5aa3d50369fe0a2
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/6025829
Reviewed-by: Justin Green <greenjustin@google.com>
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
2024-11-23 00:27:57 +00:00
George Steed
305a7a4ede [AArch64] Add SVE2 implementation of I212ToARGBRow
Observed reduction in runtime compared to the existing Neon code:

Cortex-A510: -34.5%
Cortex-A520:  -6.5%
Cortex-A715: -10.1%
Cortex-A720: -16.1%
  Cortex-X2: -11.9%
  Cortex-X3: -11.9%
  Cortex-X4:  -9.3%
Cortex-X925: -11.2%

Bug: b/42280942
Change-Id: Idc30e69552f7d227217ac7011a786210b11e4752
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/6025828
Reviewed-by: Justin Green <greenjustin@google.com>
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
2024-11-23 00:21:27 +00:00
George Steed
823d960afc [AArch64] Add SVE2 implementations of {P210,P410}ToAR30Row
Observed reductions in runtime compared to the existing Neon code:

            | P210ToAR30Row | P410ToAR30Row
Cortex-A510 |       -16.5%  |        -21.2%
Cortex-A520 | (!)    +2.7%  |         -8.7%
Cortex-A715 |        -6.1%  |         -6.1%
Cortex-A720 |        -6.2%  |         -5.9%
  Cortex-X2 |        -4.1%  |         -4.2%
  Cortex-X3 |        -4.2%  |         -4.2%
  Cortex-X4 |        -1.2%  |         -1.2%
Cortex-X925 |        -3.6%  |         -2.8%

Bug: b/42280942
Change-Id: I40723a370fad1ccb53f8ccd9d32cddb502500dd6
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/6023036
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
2024-11-14 16:52:21 +00:00
George Steed
0ddf3f7b90 [AArch64] Add SVE2 implementation of I210ToARGBRow
Observed reduction in runtime compared to the existing Neon code:

Cortex-A510: -34.5%
Cortex-A520:  -6.5%
Cortex-A715: -10.1%
Cortex-A720: -13.9%
  Cortex-X2: -11.9%
  Cortex-X3: -11.6%
  Cortex-X4:  -9.5%
Cortex-X925: -11.5%

Bug: b/42280942
Change-Id: Ie97dc3b5efd021ecfea14d4c477cc205191e09c3
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/6023037
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
2024-11-14 16:36:41 +00:00
George Steed
5b906a0ec8 [AArch64] Add SVE2 implementation of P410ToARGBRow
Observed reduction in runtime compared to the existing Neon code:

Cortex-A510: -34.7%
Cortex-A520:  -2.4%
Cortex-A715: -18.7%
Cortex-A720: -18.8%
  Cortex-X2:  -7.7%
  Cortex-X3:  -8.9%
  Cortex-X4:  +1.0% (!)
Cortex-X925:  -8.3%

Bug: b/42280942
Change-Id: I90dca0573887a9a24e2172378a9e0eb6812e2131
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/5975321
Reviewed-by: Justin Green <greenjustin@google.com>
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
2024-11-12 18:34:56 +00:00
George Steed
b753822d47 [AArch64] Add SVE2 implementation of P210ToARGBRow
Observed reduction in runtime compared to the existing Neon code:

Cortex-A510: -32.8%
Cortex-A520:  +8.7% (!)
Cortex-A715: -18.9%
Cortex-A720: -18.9%
  Cortex-X2:  -7.9%
  Cortex-X3:  -8.8%
  Cortex-X4:  +1.0% (!)
Cortex-X925:  -8.6%

Bug: b/42280942
Change-Id: Ibe557500c3788b4fb39372c92b2f42ba216e6fea
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/5975320
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
Reviewed-by: Justin Green <greenjustin@google.com>
2024-11-12 18:32:55 +00:00
George Steed
237f39cb8c [AArch64] Add SME implementation of I444ToARGBRow
This is based on an unrolled version of the existing SVE2 code. The
implementation in this case is a pure streaming-SVE (SSVE)
implementation based on the existing SVE2 implementation, we do not use
the ZA tile.

Change-Id: I83d8e58aafd814125b3446fb1c9ec4a5fb56fe3e
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/5913882
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
Reviewed-by: Justin Green <greenjustin@google.com>
2024-10-29 18:10:23 +00:00
George Steed
22c5c18778 [AArch64] Add SME implementation of I422ToARGBRow
Including addition of a new row_sme.cc file and associated
infrastructure.

The actual implementation in this case is a pure streaming-SVE (SSVE)
implementation based on the existing SVE2 implementation, we do not use
the ZA tile.

Change-Id: Ibc132c55de8d41a107e563b95f842323fef94444
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/5913881
Reviewed-by: Justin Green <greenjustin@google.com>
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
2024-10-29 05:49:28 +00:00
George Steed
22ac86800e [AArch64] Add SVE2 implementation of I422ToARGB4444Row
This makes use of the same approach as the Neon code to avoid redundant
narrowing and then widening shifts by instead placing the values at the
top portion of the lanes and then shifting down from there instead.

Observed reduction in runtime compared to the existing Neon code:

Cortex-A510: -35.5%
Cortex-A520: -38.2%
Cortex-A715: -19.8%
Cortex-A720: -19.8%
  Cortex-X2: -24.2%
  Cortex-X3: -24.1%
  Cortex-X4: -21.6%
Cortex-X925: -19.5%

Bug: b/42280942
Change-Id: I0a916600e7bdee0f5480ea843b44ab046bb3d082
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/5802968
Reviewed-by: Justin Green <greenjustin@google.com>
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
2024-10-24 21:27:39 +00:00
George Steed
f4eaeca22a [AArch64] Add SVE2 implementation of I422ToARGB1555Row
This makes use of the same approach as the Neon code to avoid redundant
narrowing and then widening shifts by instead placing the values at the
top portion of the lanes and then shifting down from there instead.

Observed reduction in runtime compared to the existing Neon code:

Cortex-A510: -41.8%
Cortex-A520: -42.6%
Cortex-A715: -22.5%
Cortex-A720: -22.6%
  Cortex-X2: -22.7%
  Cortex-X3: -22.4%
  Cortex-X4: -19.4%
Cortex-X925: -27.0%

Bug: b/42280942
Change-Id: I24b092bb352d9858e3d969d82b55940bb00ac7e0
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/5802967
Reviewed-by: Justin Green <greenjustin@google.com>
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
2024-10-24 21:27:39 +00:00
George Steed
f40042533c [AArch64] Add SVE2 implementation of I422ToRGB565Row
This makes use of the same approach as the Neon code to avoid redundant
narrowing and then widening shifts by instead placing the values at the
top portion of the lanes and then shifting down from there instead.

Observed reduction in runtime compared to the existing Neon code:

Cortex-A510: -41.1%
Cortex-A520: -38.2%
Cortex-A715: -21.5%
Cortex-A720: -21.6%
  Cortex-X2: -21.6%
  Cortex-X3: -22.0%
  Cortex-X4: -23.5%
Cortex-X925: -21.7%

Bug: b/42280942
Change-Id: Id84872141435566bbf94a4bbf0227554b5b5fb91
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/5802966
Reviewed-by: Justin Green <greenjustin@google.com>
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
2024-10-24 21:27:39 +00:00
George Steed
0dce974ca0 [AArch64] Add SVE2 implementation of I422ToRGB24Row
Observed reduction in runtime compared to the existing Neon code:

Cortex-A510: -57.8%
Cortex-A520: -41.7%
Cortex-A715: -28.0%
Cortex-A720: -28.1%
  Cortex-X2: -29.7%
  Cortex-X3: -28.7%
  Cortex-X4: -30.5%
Cortex-X925: -30.3%

Bug: b/42280942
Change-Id: I328bd16babda75fb089c8da8f2714465f658187e
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/5802965
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
Reviewed-by: Justin Green <greenjustin@google.com>
2024-10-24 02:17:32 +00:00