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Fix minor sample track playback/export glitches #4666

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merged 1 commit into from Oct 29, 2018

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@PhysSong PhysSong commented Oct 15, 2018

This PR makes LMMS handle loop points correctly and export samples without glitches. Switches some signal-slot connections to Qt::DirectConnection and change Song::processNextBuffer to emit the updateSampleTracks signal correctly. I believe queued connections caused #3133 (comment), so I removed the old workaround.
Also tweaks some Mixer-related code to avoid deadlocks on export. Due to how Mixer::requestChangeInModel works, Mixer's processing state should be set properly based on whether Mixer::renderNextBuffer can be called or not. So I touched Mixer and ProjectRenderer a bit.
Fixes #4362.

Switches some signal-slot connections to Qt::DirectConnection.
Now LMMS can handle loop points correctly and export samples without glitches.
Also tweaks some Mixer-related code to avoid related deadlocks on export.
@PhysSong PhysSong merged commit d8fb07f into LMMS:stable-1.2 Oct 29, 2018
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@PhysSong PhysSong deleted the samplefixes branch Oct 29, 2018
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