Commit Graph

11 Commits

Author SHA1 Message Date
Michael Niedermayer
0a30ad3473 Merge commit '874c751cc5b99cd68932e21c2c3a0d21134207e0'
* commit '874c751cc5b99cd68932e21c2c3a0d21134207e0':
  threads: Check w32threads dependencies at the configure stage

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-02-19 21:53:58 +01:00
Diego Biurrun
874c751cc5 threads: Check w32threads dependencies at the configure stage
Also add warning comment about threading implementations without matching
atomics implementation to the atomics fallback implementation.
2014-02-19 15:12:37 +01:00
Michael Niedermayer
3f307d79d3 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  atomics: cosmetics: Restructure ifdefs for greater clarity

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-12-20 13:16:56 +01:00
Diego Biurrun
e1b9de4fe1 atomics: cosmetics: Restructure ifdefs for greater clarity
Also fix the #endif comment in a few places and #include config.h to
avoid assuming it is #included implicitly.
2013-12-20 11:23:13 +01:00
Michael Niedermayer
6ce1d87355 Merge commit 'f9f6402e9c9ce3642df981b48507df3a2d956f65'
* commit 'f9f6402e9c9ce3642df981b48507df3a2d956f65':
  configure: prettify atomics handling.

Conflicts:
	configure

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-04-03 14:46:48 +02:00
Anton Khirnov
f9f6402e9c configure: prettify atomics handling.
Add simpler names and a shorthand for native atomics (as opposed to
pthreads fallback).
2013-04-03 09:22:31 +02:00
Michael Niedermayer
b274703493 avutil/atomic: use av_assert0()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-20 13:45:30 +01:00
Martin Storsjö
c48828f763 atomic: Check for __sync_val_compare_and_swap instead of __sync_synchronize
Not all gcc configurations have an implementation of all the atomic
operations, and some gcc configurations have some atomic builtins
implemented but not all.

Thus check for the most essential function, whose presence should
indicate that all others are present as well, since it can be used
to implement all the other ones.

Signed-off-by: Martin Storsjö <martin@martin.st>
2013-03-12 10:41:02 +01:00
Michael Niedermayer
e92ba51fd7 Merge commit '65f1d45dcc71186ede72fff950996099d23359bd'
* commit '65f1d45dcc71186ede72fff950996099d23359bd':
  lavu: add support for atomic operations.

Conflicts:
	configure

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-08 15:48:27 +01:00
Martin Storsjö
e460aa3282 atomic: Check for __sync_val_compare_and_swap instead of __sync_synchronize
Not all gcc configurations have an implementation of all the atomic
operations, and some gcc configurations have some atomic builtins
implemented but not all.

Thus check for the most essential function, whose presence should
indicate that all others are present as well, since it can be used
to implement all the other ones.

Signed-off-by: Martin Storsjö <martin@martin.st>
2013-03-08 14:55:08 +02:00
Ronald S. Bultje
65f1d45dcc lavu: add support for atomic operations.
These could be used for reference counting, or for keeping track of
decoding progress in references in multithreaded decoders.

Support is provided by gcc/msvc/suncc intrinsics, with a fallback using
pthread mutexes.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
2013-03-08 07:32:36 +01:00