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Fixes #90.

Janne Grunau authored Oct 23, 2018 and Ronald S. Bultje committed Oct 24, 2018

Fixes #97.

Janne Grunau authored Oct 23, 2018 and Ronald S. Bultje committed Oct 24, 2018

See #97.

Martin Storsjö authored Oct 21, 2018 and Janne Grunau committed Oct 24, 2018

For MachO, this makes sure that the label difference actually is
evaluated at assembly time (as it already was for ELF and COFF);
evaluating it at link time failed when the difference is stored in
a .hword.

This fixes linking errors like these:
ld: in section __TEXT,__text reloc 0: ARM64_RELOC_SUBTRACTOR must have r_length of 2 or 3 file 'src/src@@dav1d_bitdepth_8@sta/arm_64_mc.S.o' for architecture arm64

This adds an asm.S macro for decorating a symbol for making a
local symbol. For armasm64 with gas-preprocessor, this doesn't
actually create a local label (but neither do the local numbered
labels either currently), which might be slightly inconsistent
in it would be necessary to make the distinction for that assembler
as well.

Alternatively, the table symbol could be made into a plain local
numbered label as all the other labels.

Janne Grunau authored Oct 23, 2018 and Ronald S. Bultje committed Oct 23, 2018

Fixes 9 warnings. See #97.

Janne Grunau authored Oct 23, 2018 and Ronald S. Bultje committed Oct 23, 2018

Replaces the boolean 'build_libfuzzer' meson option with 'fuzzing_engine'.
This allows reproducing fuzzing test cases on systems without libfuzzer.
Also prevents regressions in the fuzzing test target since it will be
build by default.

Janne Grunau authored Oct 19, 2018 and Ronald S. Bultje committed Oct 23, 2018

Fixes an undefined shift in
clusterfuzz-testcase-minimized-dav1d_fuzzer-5685383740784640. Credits to
oss-fuzz.

Working only for the first Operating Point for now.

Janne Grunau authored Oct 19, 2018 and Ronald S. Bultje committed Oct 23, 2018

Fixes clusterfuzz-testcase-minimized-dav1d_fuzzer-5669943870226432. Credits to
oss-fuzz.

As indicated in the spec, get_poc_diff should return 0 when
order_hints are disabled.

Closes #77

Calling get_uniform(max=1) results in a read_bits(n=0),
In get_uniform, the n param is renamed to max to clarify the
semantics. Asserts are added to detect calls to get_uniform()
and get_bits() that don't actually read anything.

Closes #76

Ronald S. Bultje authored Oct 23, 2018 and Jean-Baptiste Kempf committed Oct 23, 2018

This is identical to what libaom does. Fixes #65.

Fixes #69.

Also prevent using warped motion when force_integer_mv=1. Fixes #84.

Fixes #83.

Fixes #82.

armasm64 fails to assemble this:
error A2173: syntax error in expression
        sub             x7,  x7,  w4, uxth

This clearly is a bug in armasm64, and will be reported. For now,
this workaround should be harmless though, as we've just loaded
the register with ldrh, so the upper parts of the register should
be zeroed.

Fixes #60.

These can be used in intrabc coding. Fixes #74.

Fixes #80.

checkasm --bench on a Qualcomm Kryo (Sanpdragon 820):
nop: 33.0
avg_w4_8bpc_c: 450.5
avg_w4_8bpc_neon: 20.1
avg_w8_8bpc_c: 438.6
avg_w8_8bpc_neon: 45.2
avg_w16_8bpc_c: 1003.7
avg_w16_8bpc_neon: 112.8
avg_w32_8bpc_c: 3249.6
avg_w32_8bpc_neon: 429.9
avg_w64_8bpc_c: 7213.3
avg_w64_8bpc_neon: 1299.4
avg_w128_8bpc_c: 16791.3
avg_w128_8bpc_neon: 2978.4
w_avg_w4_8bpc_c: 605.7
w_avg_w4_8bpc_neon: 30.9
w_avg_w8_8bpc_c: 545.8
w_avg_w8_8bpc_neon: 72.9
w_avg_w16_8bpc_c: 1430.1
w_avg_w16_8bpc_neon: 193.5
w_avg_w32_8bpc_c: 4876.3
w_avg_w32_8bpc_neon: 715.3
w_avg_w64_8bpc_c: 11338.0
w_avg_w64_8bpc_neon: 2147.0
w_avg_w128_8bpc_c: 26822.0
w_avg_w128_8bpc_neon: 4596.3
mask_w4_8bpc_c: 604.6
mask_w4_8bpc_neon: 37.2
mask_w8_8bpc_c: 654.8
mask_w8_8bpc_neon: 96.0
mask_w16_8bpc_c: 1663.0
mask_w16_8bpc_neon: 272.4
mask_w32_8bpc_c: 5707.6
mask_w32_8bpc_neon: 1028.9
mask_w64_8bpc_c: 12735.3
mask_w64_8bpc_neon: 2533.2
mask_w128_8bpc_c: 31027.6
mask_w128_8bpc_neon: 6247.2

Ordering the elements this way is more SIMD-friendly.

Janne Grunau authored Oct 18, 2018 and Ronald S. Bultje committed Oct 20, 2018

The simplified versions catches tg_start != 0 for the first tile group
too. Fixes a heap-buffer-overflow in setup_tile when the first tile index is
larger than 0 but the number of tiles is correct. Fixes #61, #73.

Fixes stack buffer overflows.

Sets the meson b_ndebug option to default to if-release,
so that asserts are disabled in release builds.