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73 lines
2.2 KiB
C++
73 lines
2.2 KiB
C++
/* Copyright (C) 2003, 2004, 2005, 2006, 2008, 2009 Dean Beeler, Jerome Fisher
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* Copyright (C) 2011, 2012, 2013 Dean Beeler, Jerome Fisher, Sergey V. Mikayev
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*
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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 Lesser General Public License as published by
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* the Free Software Foundation, either version 2.1 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 Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser 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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#ifndef MT32EMU_TABLES_H
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#define MT32EMU_TABLES_H
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namespace MT32Emu {
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// Sample rate to use in mixing. With the progress of development, we've found way too many thing dependent.
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// In order to achieve further advance in emulation accuracy, sample rate made fixed throughout the emulator.
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// The output from the synth is supposed to be resampled to convert the sample rate.
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const unsigned int SAMPLE_RATE = 32000;
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// MIDI interface data transfer rate in samples. Used to simulate the transfer delay.
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const double MIDI_DATA_TRANSFER_RATE = (double)SAMPLE_RATE / 31250.0 * 8.0;
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const float CM32L_REVERB_TO_LA32_ANALOG_OUTPUT_GAIN_FACTOR = 0.68f;
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const int MIDDLEC = 60;
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class Synth;
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class Tables {
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private:
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Tables();
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Tables(Tables &);
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public:
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static const Tables &getInstance();
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// Constant LUTs
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// CONFIRMED: This is used to convert several parameters to amp-modifying values in the TVA envelope:
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// - PatchTemp.outputLevel
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// - RhythmTemp.outlevel
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// - PartialParam.tva.level
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// - expression
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// It's used to determine how much to subtract from the amp envelope's target value
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Bit8u levelToAmpSubtraction[101];
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// CONFIRMED: ...
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Bit8u envLogarithmicTime[256];
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// CONFIRMED: ...
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Bit8u masterVolToAmpSubtraction[101];
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// CONFIRMED:
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Bit8u pulseWidth100To255[101];
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Bit16u exp9[512];
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Bit16u logsin9[512];
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const Bit8u *resAmpDecayFactor;
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};
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}
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#endif
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