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path: root/libavutil/atomic_gcc.h
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* lavu/atomic: add support for the new memory model aware gcc built-insJames Almer2014-10-29
| | | | | | | | | | | | __sync built-ins are considered legacy and will be deprecated. These new memory model aware built-ins have been available since GCC 4.7.0 Use them by default when available except for __atomic_compare_exchange_n(), which is slower, and is instead implemented as a fallback for when and if gcc removes the legacy __sync built-ins. Reviewed-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: James Almer <jamrial@gmail.com>
* Merge commit '6327c10702922eabcb1c6170abd3f03d23ce4c51'Michael Niedermayer2013-03-12
|\ | | | | | | | | | | | | | | | | * commit '6327c10702922eabcb1c6170abd3f03d23ce4c51': atomic: fix CAS with armcc. png: use av_mallocz_array() for the zlib zalloc function libmp3lame: use the correct remaining buffer size when flushing Merged-by: Michael Niedermayer <michaelni@gmx.at>
| * atomic: fix CAS with armcc.Anton Khirnov2013-03-09
| | | | | | | | | | | | On the current code, armcc will fail with: "libavutil/atomic_gcc.h", line 52: Error: #2771: first argument must be a pointer to integer or enumeration type
| * atomic: Add include guards to the implementation headersMartin Storsjö2013-03-08
| | | | | | | | | | | | | | | | This makes them pass standalone compilation tests. Previously, they included atomic.h which included themselves again, leading to double definitions. Signed-off-by: Martin Storsjö <martin@martin.st>
* | atomic: Add include guards to the implementation headersMartin Storsjö2013-03-08
| | | | | | | | | | | | | | | | This makes them pass standalone compilation tests. Previously, they included atomic.h which included themselves again, leading to double definitions. Signed-off-by: Martin Storsjö <martin@martin.st>
* | Merge commit '65f1d45dcc71186ede72fff950996099d23359bd'Michael Niedermayer2013-03-08
|/ | | | | | | | | | * commit '65f1d45dcc71186ede72fff950996099d23359bd': lavu: add support for atomic operations. Conflicts: configure Merged-by: Michael Niedermayer <michaelni@gmx.at>
* lavu: add support for atomic operations.Ronald S. Bultje2013-03-08
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>