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35 lines
1.1 KiB
35 lines
1.1 KiB
2 years ago
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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//
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// fx_shimmer_helper.h
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//
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// Helper class for the FX Shimmer FX that is ported from Mutable Instruments
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// Ported by: Vincent Gauché
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//
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#pragma once
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#include "fx.h"
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extern const float lut_pitch_ratio_high[257];
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extern const float lut_pitch_ratio_low[257];
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inline float32_t semitoneToRatio(float32_t semitones)
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{
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float32_t pitch = semitones + 128.0f;
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MAKE_INTEGRAL_FRACTIONAL(pitch);
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return lut_pitch_ratio_high[pitch_integral] * lut_pitch_ratio_low[static_cast<int32_t>(pitch_fractional * 256.0f)];
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}
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