b8d70d26fa
This update uses upstream commit f88ef828a600ce66d1f730c8fb2a7f580f6f6165. This update switches to use the new Munt C++ interface, which will allow ScummVM to link to an external Munt library instead of requiring it to be built-in in the future. For the moment, the emulator is still built-in, since it is not available from most package repositories. The Munt driver in ScummVM now uses writeSysex instead of the (now-private) playSysexWithoutFraming, per recommendation from the Munt team <https://github.com/munt/munt/pull/30>. This changeset also removes direct modifications that used to be made to Munt code, to ease future updates. To update Munt code in the future: 1. Replace all source files in the `softsynth/mt32` directory with new files from the upstream `mt32emu/src` directory; 2. Update `config.h` with the correct version number for the new version of Munt; 3. Update `module.mk` to add any new source files that need to be built.
155 lines
6 KiB
C++
Executable file
155 lines
6 KiB
C++
Executable file
/* Copyright (C) 2003, 2004, 2005, 2006, 2008, 2009 Dean Beeler, Jerome Fisher
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* Copyright (C) 2011-2016 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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/* Using two guards since this file may be included twice with different MT32EMU_C_ENUMERATIONS define. */
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#if (!defined MT32EMU_CPP_ENUMERATIONS_H && !defined MT32EMU_C_ENUMERATIONS) || (!defined MT32EMU_C_ENUMERATIONS_H && defined MT32EMU_C_ENUMERATIONS)
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#ifdef MT32EMU_C_ENUMERATIONS
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#define MT32EMU_C_ENUMERATIONS_H
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#define MT32EMU_DAC_INPUT_MODE_NAME mt32emu_dac_input_mode
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#define MT32EMU_DAC_INPUT_MODE(ident) MT32EMU_DAC_##ident
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#define MT32EMU_MIDI_DELAY_MODE_NAME mt32emu_midi_delay_mode
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#define MT32EMU_MIDI_DELAY_MODE(ident) MT32EMU_MDM_##ident
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#define MT32EMU_ANALOG_OUTPUT_MODE_NAME mt32emu_analog_output_mode
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#define MT32EMU_ANALOG_OUTPUT_MODE(ident) MT32EMU_AOM_##ident
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#define MT32EMU_PARTIAL_STATE_NAME mt32emu_partial_state
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#define MT32EMU_PARTIAL_STATE(ident) MT32EMU_PS_##ident
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#else /* #ifdef MT32EMU_C_ENUMERATIONS */
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#define MT32EMU_CPP_ENUMERATIONS_H
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#define MT32EMU_DAC_INPUT_MODE_NAME DACInputMode
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#define MT32EMU_DAC_INPUT_MODE(ident) DACInputMode_##ident
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#define MT32EMU_MIDI_DELAY_MODE_NAME MIDIDelayMode
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#define MT32EMU_MIDI_DELAY_MODE(ident) MIDIDelayMode_##ident
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#define MT32EMU_ANALOG_OUTPUT_MODE_NAME AnalogOutputMode
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#define MT32EMU_ANALOG_OUTPUT_MODE(ident) AnalogOutputMode_##ident
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#define MT32EMU_PARTIAL_STATE_NAME PartialState
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#define MT32EMU_PARTIAL_STATE(ident) PartialState_##ident
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namespace MT32Emu {
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#endif /* #ifdef MT32EMU_C_ENUMERATIONS */
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/**
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* Methods for emulating the connection between the LA32 and the DAC, which involves
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* some hacks in the real devices for doubling the volume.
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* See also http://en.wikipedia.org/wiki/Roland_MT-32#Digital_overflow
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*/
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enum MT32EMU_DAC_INPUT_MODE_NAME {
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/**
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* Produces samples at double the volume, without tricks.
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* Nicer overdrive characteristics than the DAC hacks (it simply clips samples within range)
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* Higher quality than the real devices
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*/
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MT32EMU_DAC_INPUT_MODE(NICE),
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/**
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* Produces samples that exactly match the bits output from the emulated LA32.
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* Nicer overdrive characteristics than the DAC hacks (it simply clips samples within range)
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* Much less likely to overdrive than any other mode.
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* Half the volume of any of the other modes.
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* Output gain is ignored for both LA32 and reverb output.
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* Perfect for developers while debugging :)
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*/
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MT32EMU_DAC_INPUT_MODE(PURE),
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/**
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* Re-orders the LA32 output bits as in early generation MT-32s (according to Wikipedia).
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* Bit order at DAC (where each number represents the original LA32 output bit number, and XX means the bit is always low):
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* 15 13 12 11 10 09 08 07 06 05 04 03 02 01 00 XX
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*/
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MT32EMU_DAC_INPUT_MODE(GENERATION1),
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/**
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* Re-orders the LA32 output bits as in later generations (personally confirmed on my CM-32L - KG).
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* Bit order at DAC (where each number represents the original LA32 output bit number):
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* 15 13 12 11 10 09 08 07 06 05 04 03 02 01 00 14
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*/
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MT32EMU_DAC_INPUT_MODE(GENERATION2)
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};
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/** Methods for emulating the effective delay of incoming MIDI messages introduced by a MIDI interface. */
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enum MT32EMU_MIDI_DELAY_MODE_NAME {
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/** Process incoming MIDI events immediately. */
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MT32EMU_MIDI_DELAY_MODE(IMMEDIATE),
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/**
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* Delay incoming short MIDI messages as if they where transferred via a MIDI cable to a real hardware unit and immediate sysex processing.
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* This ensures more accurate timing of simultaneous NoteOn messages.
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*/
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MT32EMU_MIDI_DELAY_MODE(DELAY_SHORT_MESSAGES_ONLY),
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/** Delay all incoming MIDI events as if they where transferred via a MIDI cable to a real hardware unit.*/
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MT32EMU_MIDI_DELAY_MODE(DELAY_ALL)
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};
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/** Methods for emulating the effects of analogue circuits of real hardware units on the output signal. */
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enum MT32EMU_ANALOG_OUTPUT_MODE_NAME {
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/** Only digital path is emulated. The output samples correspond to the digital signal at the DAC entrance. */
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MT32EMU_ANALOG_OUTPUT_MODE(DIGITAL_ONLY),
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/** Coarse emulation of LPF circuit. High frequencies are boosted, sample rate remains unchanged. */
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MT32EMU_ANALOG_OUTPUT_MODE(COARSE),
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/**
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* Finer emulation of LPF circuit. Output signal is upsampled to 48 kHz to allow emulation of audible mirror spectra above 16 kHz,
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* which is passed through the LPF circuit without significant attenuation.
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*/
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MT32EMU_ANALOG_OUTPUT_MODE(ACCURATE),
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/**
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* Same as AnalogOutputMode_ACCURATE mode but the output signal is 2x oversampled, i.e. the output sample rate is 96 kHz.
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* This makes subsequent resampling easier. Besides, due to nonlinear passband of the LPF emulated, it takes fewer number of MACs
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* compared to a regular LPF FIR implementations.
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*/
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MT32EMU_ANALOG_OUTPUT_MODE(OVERSAMPLED)
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};
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enum MT32EMU_PARTIAL_STATE_NAME {
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MT32EMU_PARTIAL_STATE(INACTIVE),
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MT32EMU_PARTIAL_STATE(ATTACK),
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MT32EMU_PARTIAL_STATE(SUSTAIN),
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MT32EMU_PARTIAL_STATE(RELEASE)
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};
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#ifndef MT32EMU_C_ENUMERATIONS
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} // namespace MT32Emu
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#endif
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#undef MT32EMU_DAC_INPUT_MODE_NAME
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#undef MT32EMU_DAC_INPUT_MODE
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#undef MT32EMU_MIDI_DELAY_MODE_NAME
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#undef MT32EMU_MIDI_DELAY_MODE
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#undef MT32EMU_ANALOG_OUTPUT_MODE_NAME
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#undef MT32EMU_ANALOG_OUTPUT_MODE
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#undef MT32EMU_PARTIAL_STATE_NAME
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#undef MT32EMU_PARTIAL_STATE
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#endif /* #if (!defined MT32EMU_CPP_ENUMERATIONS_H && !defined MT32EMU_C_ENUMERATIONS) || (!defined MT32EMU_C_ENUMERATIONS_H && defined MT32EMU_C_ENUMERATIONS) */
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