[Bug 14717] resampled sound is horrible

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=14717

--- Comment #254 from Alexander E. Patrakov <patrakov at gmail.com> 2011-12-24 07:53:05 CST ---
Created attachment 38100
  --> http://bugs.winehq.org/attachment.cgi?id=38100
Andrew's patchset with the third patch reworked

I made some changes to Andrew's patch, in the part where convert() functions
are replaced with get() and put().

First, to ensure that 8-, 16- and 24-bit audio can pass through unmodified if
there is no resampling and no volume changes, I have changed all int <-> float
conversion factors to be powers of two. Second, the 24-bit case was handled
incorrectly. Third, the original code always rounded floating-point samples
towards zero, I have changed this to a uniform staircase by using lrintf().

No other bugs are fixed. I.e., this patch still causes clicks.

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