From 9d861406c06d44f4b39e25f3a4deabdf11242ea1 Mon Sep 17 00:00:00 2001
From: Chris Robinson <chris.kcat@gmail.com>
Date: Tue, 4 Jun 2019 17:50:36 -0700
Subject: Avoid a separate struct for the bandsplitter all-pass
---
Alc/alu.cpp | 11 +++--------
1 file changed, 3 insertions(+), 8 deletions(-)
(limited to 'Alc/alu.cpp')
diff --git a/Alc/alu.cpp b/Alc/alu.cpp
index d41a66aa..97ebf0cb 100644
--- a/Alc/alu.cpp
+++ b/Alc/alu.cpp
@@ -1499,7 +1499,6 @@ void ApplyStablizer(FrontStablizer *Stablizer, FloatBufferLine *Buffer, const in
}
}
- const SplitterAllpass &APFilter = Stablizer->APFilter;
ALfloat (&lsplit)[2][BUFFERSIZE] = Stablizer->LSplit;
ALfloat (&rsplit)[2][BUFFERSIZE] = Stablizer->RSplit;
auto &tmpbuf = Stablizer->TempBuf;
@@ -1507,7 +1506,7 @@ void ApplyStablizer(FrontStablizer *Stablizer, FloatBufferLine *Buffer, const in
/* This applies the band-splitter, preserving phase at the cost of some
* delay. The shorter the delay, the more error seeps into the result.
*/
- auto apply_splitter = [&APFilter,&tmpbuf,SamplesToDo](const FloatBufferLine &Buffer,
+ auto apply_splitter = [&tmpbuf,SamplesToDo](const FloatBufferLine &Buffer,
ALfloat (&DelayBuf)[FrontStablizer::DelayLength], BandSplitter &Filter,
ALfloat (&splitbuf)[2][BUFFERSIZE]) -> void
{
@@ -1522,13 +1521,9 @@ void ApplyStablizer(FrontStablizer *Stablizer, FloatBufferLine *Buffer, const in
std::copy_n(std::begin(tmpbuf), FrontStablizer::DelayLength, std::begin(DelayBuf));
/* Apply an all-pass on the reversed signal, then reverse the samples
- * to get the forward signal with a reversed phase shift. Note that the
- * all-pass filter is copied to a local for use, since each pass is
- * indepedent because the signal's processed backwards (with a delay
- * being used to hide discontinuities).
+ * to get the forward signal with a reversed phase shift.
*/
- SplitterAllpass allpass{APFilter};
- allpass.process(tmpbuf, SamplesToDo+FrontStablizer::DelayLength);
+ Filter.applyAllpass(tmpbuf, SamplesToDo+FrontStablizer::DelayLength);
std::reverse(std::begin(tmpbuf), tmpbuf_end+FrontStablizer::DelayLength);
/* Now apply the band-splitter, combining its phase shift with the
--
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