f27ece50c9
Use bilinear filtering to reduce 36 taps to 25 for the regular path. This works because the middle weights are always between 0 and 1, allowing texture coordinates to be placed strategically to sample correct ratios. I'm not sure about the undistort path, so I've left that alone. Also remove scaling added in #526, after which weight normalization is unnecessary. If we want to use or invent an algorithm with alternate downscaling properties, that's fine, but I don't think we should change Lanczos scaling to mean something it's not. The scale implementation was also seen not working when applied directly to scene items because of assumptions made about the projection matrix. Intel GPA, SetStablePowerState, Intel HD Graphics 530, D3D11 644x478 -> 1323x1080: 3890 us -> 3401 us 1920x1080 -> 1280x720: 2555 us -> 2261 us
OBS Studio <https://obsproject.com> =================================== .. image:: https://travis-ci.org/obsproject/obs-studio.svg?branch=master :alt: OBS Studio Build Status - Travis CI :target: https://travis-ci.org/obsproject/obs-studio .. image:: https://ci.appveyor.com/api/projects/status/github/obsproject/obs-studio?branch=master&svg=true :alt: OBS Studio Build Status - AppVeyor CI :target: https://ci.appveyor.com/project/jp9000/obs-studio/branch/master .. image:: https://dev.azure.com/obsjim/obsjim/_apis/build/status/obsproject.obs-studio?branchName=master :alt: OBS Studio Build Status - Azure Pipelines :target: https://dev.azure.com/obsjim/obsjim/_build/latest?definitionId=1&branchName=master .. image:: https://discordapp.com/api/guilds/348973006581923840/widget.png?style=shield :alt: OBS Studio Discord Server :target: https://obsproject.com/discord What is OBS Studio? ------------------- OBS Studio is software designed for capturing, compositing, encoding, recording, and streaming video content, efficiently. It's distributed under the GNU General Public License v2 (or any later version) - see the accompanying COPYING file for more details. Quick Links ----------- - Website: https://obsproject.com - Help/Documentation/Guides: https://github.com/obsproject/obs-studio/wiki - Forums: https://obsproject.com/forum/ - Build Instructions: https://github.com/obsproject/obs-studio/wiki/Install-Instructions - Developer/API Documentation: https://obsproject.com/docs - Donating/backing/sponsoring: https://obsproject.com/contribute - Bug Tracker: https://obsproject.com/mantis/ (Note: The bug tracker is linked to forum accounts. To use the bug tracker, log in to a forum account) Contributing ------------ - If you would like to help fund or sponsor the project, you can do so via `Patreon <https://www.patreon.com/obsproject>`_, `OpenCollective <https://opencollective.com/obsproject>`_, or `PayPal <https://www.paypal.me/obsproject>`_. See our `contribute page <https://obsproject.com/contribute>`_ for more information. - If you wish to contribute code to the project, please make sure to read the coding and commit guidelines: https://github.com/obsproject/obs-studio/blob/master/CONTRIBUTING.rst - Developer/API documentation can be found here: https://obsproject.com/docs - If you wish to contribute translations, do not submit pull requests. Instead, please use Crowdin. For more information read this thread: https://obsproject.com/forum/threads/how-to-contribute-translations-for-obs.16327/ - Other ways to contribute are by helping people out with support on our forums or in our community chat. Please limit support to topics you fully understand -- bad advice is worse than no advice. When it comes to something that you don't fully know or understand, please defer to the official help or official channels.