FFmpeg

293MB

Tree: c14a8c834c

Author	SHA1	Message	Date
Hendrik Leppkes	b91459e565	atomic: prefer gcc builtins over win32 atomics, if available. The mingw win32 atomics appear to be faulty, so they should not be used if the gcc ones are available. Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
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>	12 years ago
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>	12 years ago
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>	13 years ago

4 Commits (c14a8c834c0f48e948da688b68f2cd202349adf0)