cplay v2.2

CPLAY v2.2 - NATIVE DSP ENGINE & ARCHITECTURE UPDATE

SUMMARY OF CHANGES

1. AUDIO ENGINE & DSP UPGRADES

   • Bauer Stereophonic-to-Binaural (BS2B) Crossfeed Filter:
     • Added native 16-bit PCM Crossfeed DSP module (CrossfeedDSP / ApplyCrossfeed)
       to eliminate harsh hard-panning and reduce listening fatigue.
     • Blends attenuated (~30%) and low-pass delayed (~220us) signals across channels.
   • Volume Normalization (Exponential AGC):
     • Upgraded automatic gain control (ApplyAgcSmoothed) with dual-rate
       exponential moving averages (fast attack, slow release).
     • Fixed volume "bounce" when switching UI screens by keeping smoothing history.
   • Master DSP Dispatcher Integration:
     • Crossfeed added as the 7th DSP module in ApplyAllDSP.

2. UI & LAYOUT IMPROVEMENTS

   • Expanded Options Screen Space:
     • DrawOptionsScreen updated to display 7 active DSP modules.
     • Presets Listbox and 10-Band EQ Parameters Form moved down to Row 10.
   • Input Dispatcher Alignment:
     • Updated selection bounds to index 6 for the 7th DSP item.
     • Added spacebar toggle support and crossfeed_enabled INI persistence.

3. CORE ENGINE & STREAM PIPELINE FIXES

   • Optimized Stream Loop Initialization (WHILE argIdx < g_TrackCount):
     • Reordered loop so CreateTrackStream runs before handle validation.
     • Moved byte position restoring (BASS_ChannelSetPosition) before prebuffering.
     • Placed BASS_ChannelPreBuf(hStream, 2000) at the end of setup to guarantee
       fully processed DSP audio from sample 0.

4. DOCUMENTATION

   • Added DSP_Guide.txt detailing module operations, equipment profiles
     (IEMs vs. Flatheads), and incompatible DSP combinations.