Move the filters to core

1 files changed, 0 insertions, 113 deletions

diff --git a/alc/filters/splitter.cpp b/alc/filters/splitter.cpp
deleted file mode 100644
index 5cc670b7..00000000
--- a/alc/filters/splitter.cpp
+++ /dev/null
@@ -1,113 +0,0 @@
-
-#include "config.h"
-
-#include "splitter.h"
-
-#include <algorithm>
-#include <cmath>
-#include <limits>
-
-#include "math_defs.h"
-#include "opthelpers.h"
-
-
-template<typename Real>
-void BandSplitterR<Real>::init(Real f0norm)
-{
-    const Real w{f0norm * al::MathDefs<Real>::Tau()};
-    const Real cw{std::cos(w)};
-    if(cw > std::numeric_limits<float>::epsilon())
-        mCoeff = (std::sin(w) - 1.0f) / cw;
-    else
-        mCoeff = cw * -0.5f;
-
-    mLpZ1 = 0.0f;
-    mLpZ2 = 0.0f;
-    mApZ1 = 0.0f;
-}
-
-template<typename Real>
-void BandSplitterR<Real>::process(const al::span<const Real> input, Real *hpout, Real *lpout)
-{
-    const Real ap_coeff{mCoeff};
-    const Real lp_coeff{mCoeff*0.5f + 0.5f};
-    Real lp_z1{mLpZ1};
-    Real lp_z2{mLpZ2};
-    Real ap_z1{mApZ1};
-    auto proc_sample = [ap_coeff,lp_coeff,&lp_z1,&lp_z2,&ap_z1,&lpout](const Real in) noexcept -> Real
-    {
-        /* Low-pass sample processing. */
-        Real d{(in - lp_z1) * lp_coeff};
-        Real lp_y{lp_z1 + d};
-        lp_z1 = lp_y + d;
-
-        d = (lp_y - lp_z2) * lp_coeff;
-        lp_y = lp_z2 + d;
-        lp_z2 = lp_y + d;
-
-        *(lpout++) = lp_y;
-
-        /* All-pass sample processing. */
-        Real ap_y{in*ap_coeff + ap_z1};
-        ap_z1 = in - ap_y*ap_coeff;
-
-        /* High-pass generated from removing low-passed output. */
-        return ap_y - lp_y;
-    };
-    std::transform(input.cbegin(), input.cend(), hpout, proc_sample);
-    mLpZ1 = lp_z1;
-    mLpZ2 = lp_z2;
-    mApZ1 = ap_z1;
-}
-
-template<typename Real>
-void BandSplitterR<Real>::processHfScale(const al::span<Real> samples, const Real hfscale)
-{
-    const Real ap_coeff{mCoeff};
-    const Real lp_coeff{mCoeff*0.5f + 0.5f};
-    Real lp_z1{mLpZ1};
-    Real lp_z2{mLpZ2};
-    Real ap_z1{mApZ1};
-    auto proc_sample = [hfscale,ap_coeff,lp_coeff,&lp_z1,&lp_z2,&ap_z1](const Real in) noexcept -> Real
-    {
-        /* Low-pass sample processing. */
-        Real d{(in - lp_z1) * lp_coeff};
-        Real lp_y{lp_z1 + d};
-        lp_z1 = lp_y + d;
-
-        d = (lp_y - lp_z2) * lp_coeff;
-        lp_y = lp_z2 + d;
-        lp_z2 = lp_y + d;
-
-        /* All-pass sample processing. */
-        Real ap_y{in*ap_coeff + ap_z1};
-        ap_z1 = in - ap_y*ap_coeff;
-
-        /* High-pass generated by removing the low-passed signal, which is then
-         * scaled and added back to the low-passed signal.
-         */
-        return (ap_y-lp_y)*hfscale + lp_y;
-    };
-    std::transform(samples.begin(), samples.end(), samples.begin(), proc_sample);
-    mLpZ1 = lp_z1;
-    mLpZ2 = lp_z2;
-    mApZ1 = ap_z1;
-}
-
-template<typename Real>
-void BandSplitterR<Real>::applyAllpass(const al::span<Real> samples) const
-{
-    const Real coeff{mCoeff};
-    Real z1{0.0f};
-    auto proc_sample = [coeff,&z1](const Real in) noexcept -> Real
-    {
-        const Real out{in*coeff + z1};
-        z1 = in - out*coeff;
-        return out;
-    };
-    std::transform(samples.begin(), samples.end(), samples.begin(), proc_sample);
-}
-
-
-template class BandSplitterR<float>;
-template class BandSplitterR<double>;