Allocate the effect slot wet buffer dynamically

1 files changed, 8 insertions, 6 deletions

diff --git a/Alc/panning.cpp b/Alc/panning.cpp
index 01ac5ad7..d92570f3 100644
--- a/Alc/panning.cpp
+++ b/Alc/panning.cpp
@@ -861,7 +861,7 @@ void ComputePanningGainsBF(const BFChannelConfig *chanmap, ALsizei numchans, con
 }
 
 void ComputePanGains(const ALeffectslot *slot, const ALfloat*RESTRICT coeffs, ALfloat ingain, ALfloat (&gains)[MAX_OUTPUT_CHANNELS])
-{ ComputePanningGainsBF(slot->ChanMap, slot->NumChannels, coeffs, ingain, gains); }
+{ ComputePanningGainsBF(slot->ChanMap, slot->WetBuffer.size(), coeffs, ingain, gains); }
 
 
 void aluInitRenderer(ALCdevice *device, ALint hrtf_id, HrtfRequestMode hrtf_appreq, HrtfRequestMode hrtf_userreq)
@@ -1121,10 +1121,12 @@ no_hrtf:
 
 void aluInitEffectPanning(ALeffectslot *slot)
 {
-    const size_t count{countof(slot->ChanMap)};
+    const size_t count{4u};
+    slot->WetBuffer.resize(count);
+    slot->WetBuffer.shrink_to_fit();
+
     auto acnmap_end = AmbiIndex::From3D.begin() + count;
-    std::transform(AmbiIndex::From3D.begin(), acnmap_end, std::begin(slot->ChanMap),
-        [](const ALsizei &acn) noexcept { return BFChannelConfig{1.0f, acn}; }
-    );
-    slot->NumChannels = static_cast<ALsizei>(count);
+    auto iter = std::transform(AmbiIndex::From3D.begin(), acnmap_end, std::begin(slot->ChanMap),
+        [](const ALsizei &acn) noexcept { return BFChannelConfig{1.0f, acn}; });
+    std::fill(iter, std::end(slot->ChanMap), BFChannelConfig{});
 }