Implement NEON optimization for compute_weights_line.
Also update the function signature to use ptrdiff_t for stack arguments
(max_meaningful_diff, startx, endx). This is done to unify the stack
layout between Apple platforms (which pack 32-bit stack arguments tightly)
and the generic AAPCS64 ABI (which requires 8-byte stack slots for 32-bit
arguments). Using ptrdiff_t ensures 8-byte slots are used on all AArch64
platforms, avoiding ABI mismatches with the assembly implementation.
The x86 AVX2 prototype is updated to match the new signature.
Performance benchmark (AArch64) in MacOS M4:
./tests/checkasm/checkasm --test=vf_nlmeans --bench
compute_weights_line_c: 151.1 ( 1.00x)
compute_weights_line_neon: 62.6 ( 2.42x)
Reviewed-by: Martin Storsjö <martin@martin.st>
Signed-off-by: Jun Zhao <barryjzhao@tencent.com>
It is more in line with our naming conventions.
Reviewed-by: Martin Storsjö <martin@martin.st>
Reviewed-by: Niklas Haas <ffmpeg@haasn.dev>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This already avoids unnecessary indirectly included headers
in the arch-specific vf_bwdif_init.c files; it is also in
preparation for splitting the actual functions out of vf_bwdif.c.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Exports C filter_line needed for tail fixup of neon code
Adds neon for filter_line
Signed-off-by: John Cox <jc@kynesim.co.uk>
Signed-off-by: Martin Storsjö <martin@martin.st>
Adds clip and spatial macros for aarch64 neon
Exports C filter_edge needed for tail fixup of neon code
Adds neon for filter_edge
Signed-off-by: John Cox <jc@kynesim.co.uk>
Signed-off-by: Martin Storsjö <martin@martin.st>
Adds an outline for aarch neon functions
Adds common macros and consts for aarch64 neon
Exports C filter_intra needed for tail fixup of neon code
Adds neon for filter_intra
Signed-off-by: John Cox <jc@kynesim.co.uk>
Signed-off-by: Martin Storsjö <martin@martin.st>
Some files currently rely on libavutil/cpu.h to include it for them;
yet said file won't use include it any more after the currently
deprecated functions are removed, so include attributes.h directly.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
