* commit '36b822b8be7f9ecd6f9d87acaa786b128a873cd9':
arm: dsputil: Drop restrict keyword from add_pixels_clamped_armv6 prototype
Merged-by: Michael Niedermayer <michaelni@gmx.at>
The function is assigned to a function pointer that does not have the
restrict keyword for that parameter.
This fixes compilation for MSVC builds that don't recognize "restrict",
broken since ed9625eb62.
* commit '831a1180785a786272cdcefb71566a770bfb879e':
Update dsputil- and SIMD-related comments to match reality more closely
Conflicts:
libavcodec/x86/hpeldsp.asm
libavutil/arm/float_dsp_init_arm.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Based on the aarch64 asm. CPU cycle counts on cortex-a9 compared to
gcc 4.8.2:
before: 475 decicycles in get_cabac_noinline, 67106035 runs, 2829 skips
after: 393 decicycles in get_cabac_noinline, 67106474 runs, 2390 skips
Overall speedup is above 2%. Code generated by clang 3.4 is slower on
the same hardware and the relative change is a little larger.
The overread avoidance fix in cbddee1cca
broke the computation for the last row since it prevented the safe
reading from the height+1-th row.
CC: libav-stable@libav.org
The vector dequantization has a test in a loop preventing effective SIMD
implementation. By moving it out of the loop, this loop can be DSPized.
Therefore, modify the current DSP implementation. In particular, the
DSP implementation no longer has to handle null loop sizes.
The decode_hf implementations have following timings:
For x86 Arrandale:
C SSE SSE2 SSE4
win32: 260 162 119 104
win64: 242 N/A 89 72
The arm NEON optimizations follow in a later patch as external asm. The
now unused check for the y modifier in arm inline asm is removed from
configure.
The scaling factor is constant so it is faster to scale the
FIR coefficients in the tables during compilation.
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
* commit '5c1c6e82261b856214499b9fef3a08bf3ff6e0ae':
dca: include dcadsp.h in {arm,x86}/dca.h for checkheaders
Merged-by: Michael Niedermayer <michaelni@gmx.at>
The x86 runs short on registers because numerous elements are not static.
In addition, splitting them allows more optimized code, at least for x86.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
It is currently declared as a macro who is set to inlinable functions,
among which a Neon and a default C implementations.
Add a DSP parameter to each inline function, unused except by the
default C implementation which calls a function from the DSP context.
On an Arrandale CPU, gain for an inlined SSE2 function vs. a call:
- Win32: 29 to 26 cycles
- Win64: 25 to 23 cycles
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit '5bcbb516f2ff45290ef7995b081762e668693672':
arm: Add X() around all references to extern symbols
Merged-by: Michael Niedermayer <michaelni@gmx.at>
The x86 runs short on registers because numerous elements are not static.
In addition, splitting them allows more optimized code, at least for x86.
Arm asm changes by Janne Grunau.
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
It is currently declared as a macro who is set to inlinable functions,
among which a Neon and a default C implementations.
Add a DSP parameter to each inline function, unused except by the
default C implementation which calls a function from the DSP context.
On an Arrandale CPU, gain for an inlined SSE2 function vs. a call:
- Win32: 29 to 26 cycles
- Win64: 25 to 23 cycles
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
* qatar/master:
vp8: Use 2 registers for dst_stride and src_stride in neon bilin filter
Conflicts:
libavcodec/arm/vp8dsp_neon.S
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '7151c5d04aed3b496c21f713dcb603e2cbdb9c49':
arm: Use full filenames as multiple inclusion guards
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* qatar/master:
arm: Add an option for making sure NEON registers aren't clobbered
Conflicts:
configure
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '5dae4872357613a0b51120b54a4c5221e0ec3f69':
arm: Allow overriding the alignment set in the function macro
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'b7b932f5e3602bd34c3cc634b71c8bbbc0fb8dc0':
arm: Remove a leftover define for the pld instruction
Merged-by: Michael Niedermayer <michaelni@gmx.at>
