opengl: default to vsync=0 everywhere. This reverts commit 3ee29f2e7a3af825daf39ec980d5f92896773b45, among other changes. This means getting a scary warning on the javascript console in Emscripten by default, but this is easily fixed by setting a GL swap interval at startup or creating a 2D renderer with the appropriate property (or call to SDL_SetRenderVSync()). Fixes #14625.
Simple DirectMedia Layer (SDL for short) is a cross-platform library designed to make it easy to write multi-media software, such as games and emulators.
You can find the latest release and additional information at: https://www.libsdl.org/
Installation instructions and a quick introduction is available in INSTALL.md
This library is distributed under the terms of the zlib license, available in LICENSE.txt.
Enjoy!
Sam Lantinga (slouken@libsdl.org)