| Commit message (Collapse) | Author | Age | Files | Lines |
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Intel's Instruction Set Reference (as of September 2015) clearly states
that cvtpi2ps switches to MMX state. Actual CPUs do not switch if the
source is a memory location. The Instruction Set Reference from 1999
(Order Number 243191) describes this behaviour but all later versions
I've seen have make no distinction whether MMX registers or memory is
used as source.
The documentation for the matching SSE2 instruction to convert to double
(cvtpi2pd) was fixed (see the valgrind bug
https://bugs.kde.org/show_bug.cgi?id=210264).
It will take time to get a clarification and fixes in place. In the
meantime it makes sense to change ff_int32_to_float_fmul_scalar_sse to
be correct according to the documentation. The vast majority of users
will have SSE2 so a change to the SSE version has little effect.
Fixes fate-checkasm on x86 valgrind targets.
Valgrind 'bug' reported as https://bugs.kde.org/show_bug.cgi?id=357059
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This reverts commit 5dfe4edad63971d669ae456b0bc40ef9364cca80.
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They were superseded with their integer equivalents. Rename integer
decode_hf to decode_hf.
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fixes assembling on OS/2
Signed-off-by: Dave Yeo <dave.r.yeo@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
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Deprecated in 03/2013.
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The .text section is already 16-byte aligned by default on all supported
platforms so `SECTION_TEXT` isn't any different from `SECTION .text`.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
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Change ALLOC_STACK to always align the stack before allocating stack space for
consistency. Previously alignment would occur either before or after allocating
stack space depending on whether manual alignment was required or not.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
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Signed-off-by: Anton Khirnov <anton@khirnov.net>
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There is an SSE2 implementation so the SSE version is never used. The "SSE"
version also happens to contain SSE2 instructions on x86-64.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
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Convert doxygen to multiline and express bitfields more simply.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
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The upper halves are not guaranteed to be zero in x86-64.
Also use `test` instead of `and` when the result isn't used for anything other
than as a branch condition, this allows some register moves to be eliminated.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
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CC: libav-stable@libav.org
Sample-Id: test_bref.mp4
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
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Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
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Simplifies the code and makes it build on certain compilers
running out of registers on x86.
CC: libav-stable@libav.org
Reported-By: mudler
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They are just duplicates of AVCodecContext members so use those instead.
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It uses 6 registers, unbreaks building on hardened x86 system.
Bug-Id: gentoo/541930
CC: libav-stable@libav.org
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Only ac3dec and dcadec use it.
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CC: libav-stable@libav.org
Bug-Id: 795
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
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CC: libav-stable@libav.org
Bug-Id: CID 700556 / CID 700557 / CID 700558
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The upper halves are not guaranteed to be zero in x86-64.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
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Thanks to Pascal Massimino and Michael Militzer for relicensing as LGPL.
Signed-off-by: Diego Biurrun <diego@biurrun.de>
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These function pointers already existed in the ARM code. Adding them globally
allows calls to the function pointers to access arch-optimized versions of the
functions transparently.
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The Xvid IDCT is not MMX-specific.
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This fixes cases where the scantable permuation would get overwritten by
the general idctdsp initialization.
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The Xvid IDCT is only required to decode some Xvid-encoded MPEG-4 files,
so there is no point in having it as an unconditional part of idctdsp.
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Additional contributions by James Almer <jamrial@gmail.com>,
Carl Eugen Hoyos <cehoyos@ag.or.at>, Fiona Glaser <fiona@x264.com> and
Anton Khirnov <anton@khirnov.net>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
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Also rename the enum values to be consistent with other DCT permutations.
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