When Android sends Dolphin to the background, emulation *must* pause,
otherwise emulation continues running and continues outputting audio to
the user. RetroAchievements mustn't be allowed to override it.
Without this, there was a bug where if you turned the device's screen
off and on again while in the advanced mapping dialog, the input
indicators would stop updating. This is because turning the screen on
again causes devices to refresh, which causes all devices to be
recreated, leaving the AdvancedMappingControlViewHolders stuck
referencing controls belonging to devices that are no longer being
updated.
This makes sure view holders get proper widths when they use
layout_width="match_parent". This becomes quite noticeable for
AdvancedMappingControlAdapter in the next commit, but I'm also
making the change for other adapters while I'm at it.
Google Play is now blocking distribution for Android TV unless we
explicitly set the android.hardware.microphone hardware feature as
android:required="false", because it's inferring
android.hardware.microphone from the android.permission.RECORD_AUDIO we
added for Wii Speak emulation, with android:required defaulting to true.
I was under the belief that setting android:required="false" on
android.permission.RECORD_AUDIO would solve this, but looking closer at
the definition of <uses-permission>, it doesn't actually support
android:required attributes, so that presumably has no effect.
This can reduce audio latency according to
https://developer.android.com/ndk/guides/audio/opensl/opensl-prog-notes#perform.
Previously we were using the hardcoded values of 48000 Hz and 256 frames
per buffer. The sample rate we use with this change is 48000 Hz on all
devices I'm aware of, but the buffer size does vary across devices.
Terminology note: The old code used the term "sample" to refer to what
Android refers to as a "frame". "Frame" is a clearer term to use for
this, so I've changed OpenSLESStream's terminology. One frame consists
of one sample per channel.
If you already have a mapping set in the advanced mapping dialog and
want to change it, the easiest way to do it is to press Clear and then
select the new mapping from the list. But pressing Clear causes the
dialog to close, forcing you to open it again, which is inconvenient.
This commit makes it so the Clear button doesn't close the dialog.
This feature allows overriding the frequency of the Vertical Blank Interrupt. For many games, this means that their gameplay speed will change without affecting audio, which would be useful by itself (e.g. grinding in RPGs).
However, there are games that use delta time for their game logic, which allows them to be played at >60 FPS at the same gameplay speed!
Some games aren't dynamic though, and require a patch to adjust their game speed variable.