hrydgard/ppsspp — pull request #3165 by thedax (2013-08-14 12:49:30+00:00)
Title: Fix a bug where sound would never be initialised if a game is started with it off.

Before, if a user started a game with sound disabled, the mixer would never be initialised, even if they turn it on later. This simply checks to see if mixer isn't null(and that we're in-game via PSP_IsInited) and if it is, it initialises it.