Commit 8bf32e12d85598fcb7dcedfc9bf30445beb9d42a

Brick 2021-10-15T06:26:10

Improved SDL_PollEvent usage (#4794) * Avoid unnecessary SDL_PumpEvents calls in SDL_WaitEventTimeout * Add a sentinel event to avoid infinite poll loops * Move SDL_POLLSENTINEL to new internal event category * Tweak documentation to indicate SDL_PumpEvents isn't always called * Avoid shadowing event variable * Ignore poll sentinel if more (user) events have been added after Co-authored-by: Sam Lantinga <slouken@libsdl.org>