https://gitlab.synchro.net/main/sbbs/-/commit/c4d40f8df8bfe47e5962a1e6
Modified Files:
src/xpdev/xpbeep.c
Log Message:
And, of course, fix the Borland build.
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https://gitlab.synchro.net/main/sbbs/-/commit/695158804810f59a019739fa
Modified Files:
src/xpdev/xpbeep.c
Log Message:
Add some "idiomatic" idiocy for Windows.
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https://gitlab.synchro.net/main/sbbs/-/commit/d0f1673364b87c2e9d70ce00
Modified Files:
src/xpdev/xpbeep.c
Log Message:
Fix warning.
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https://gitlab.synchro.net/main/sbbs/-/commit/4f8d820161535a3e4ff10518
Modified Files:
src/xpdev/xpbeep.c
Log Message:
xpbeep: fix non-MT build broken by xptone rewrite

The node-FIFO mixer commit (897325cdb8) rewrote xptone() to open its
own xp_audio stream via pthread_once + assert_pthread_mutex_lock + xp_audio_open Ä all MT-only symbols Ä but xptone() sits outside the XPDEV_THREAD_SAFE guard in xpbeep.c, so non-MT builds (single-threaded
xpdev consumed by the Borland SBBS build) no longer compiled.

Split xptone() into two variants under #ifdef XPDEV_THREAD_SAFE / #else:
- MT keeps the new single-stream xp_audio_open + chunk-append path with
the stream opened at -12 dB for headroom.
- Non-MT restores the pre-rewrite per-chunk xp_play_sample16s flow and
bakes the -12 dB attenuation into the wave buffer with an inline
0.251 scale, since the non-MT path has no stream/mixer volume to
carry it.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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https://gitlab.synchro.net/main/sbbs/-/commit/ee221af10158c7b559e3071c
Modified Files:
src/xpdev/xpbeep.c
Log Message:
Switch to an equal-power cross-fade.

The old dB-linear cross-fade was terrible... the two samples crossed
at -30dB from the channel level (normally -12), which while perceptible
isn't exactly what people imagine when they think of a cross-fade.

The equal-power curve actually seems reasonable for all fades.
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https://gitlab.synchro.net/main/sbbs/-/commit/77c1c5218b8d4a29a086831d
Modified Files:
src/xpdev/xpbeep.c
Log Message:
Use equal-power ramp for Volume command too.

This effectively let's you pan channels around as they play.
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