0441bb625f
Denormal numbers (see [1]) may origin in APM when the input is zeroed after a non-zero signal. In extreme cases, instructions involving denormal operands may run as much as 100 times slower, which seems to be the case (to some extent) of crbug.com/1227566. This CL adds a class that disables denormals only via hardware on x86 and on ARM. The class is used in APM and it is an adaption of [2]. Tested: appr.tc call on Chromium (Win, Mac) [1] https://en.wikipedia.org/wiki/Denormal_number [2] https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/renderer/platform/audio/denormal_disabler.h Fixed: chromium:1227566 Change-Id: I0ed2eab55dc597529f09f93c26c7a01de051fdbe Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/227768 Reviewed-by: Magnus Flodman <mflodman@webrtc.org> Reviewed-by: Per Åhgren <peah@webrtc.org> Commit-Queue: Alessio Bazzica <alessiob@webrtc.org> Cr-Commit-Position: refs/heads/master@{#34701}
WebRTC is a free, open software project that provides browsers and mobile applications with Real-Time Communications (RTC) capabilities via simple APIs. The WebRTC components have been optimized to best serve this purpose.
Our mission: To enable rich, high-quality RTC applications to be developed for the browser, mobile platforms, and IoT devices, and allow them all to communicate via a common set of protocols.
The WebRTC initiative is a project supported by Google, Mozilla and Opera, amongst others.
Development
See here for instructions on how to get started developing with the native code.
Authoritative list of directories that contain the native API header files.
More info
- Official web site: http://www.webrtc.org
- Master source code repo: https://webrtc.googlesource.com/src
- Samples and reference apps: https://github.com/webrtc
- Mailing list: http://groups.google.com/group/discuss-webrtc
- Continuous build: https://ci.chromium.org/p/webrtc/g/ci/console
- Coding style guide
- Code of conduct
- Reporting bugs
- Documentation