mirror of
https://github.com/ZDoom/gzdoom-gles.git
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84 lines
3.2 KiB
C++
84 lines
3.2 KiB
C++
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/*
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* libADLMIDI is a free MIDI to WAV conversion library with OPL3 emulation
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*
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* Original ADLMIDI code: Copyright (c) 2010-2014 Joel Yliluoma <bisqwit@iki.fi>
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* ADLMIDI Library API: Copyright (c) 2015-2018 Vitaly Novichkov <admin@wohlnet.ru>
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*
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* Library is based on the ADLMIDI, a MIDI player for Linux and Windows with OPL3 emulation:
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* http://iki.fi/bisqwit/source/adlmidi.html
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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 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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* 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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#include "adlmidi_private.hpp"
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std::string ADLMIDI_ErrorString;
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int adlRefreshNumCards(ADL_MIDIPlayer *device)
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{
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unsigned n_fourop[2] = {0, 0}, n_total[2] = {0, 0};
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MIDIplay *play = reinterpret_cast<MIDIplay *>(device->adl_midiPlayer);
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//Automatically calculate how much 4-operator channels is necessary
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if(play->opl.AdlBank == ~0u)
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{
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//For custom bank
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for(size_t a = 0; a < play->opl.dynamic_metainstruments.size(); ++a)
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{
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size_t div = (a >= play->opl.dynamic_percussion_offset) ? 1 : 0;
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++n_total[div];
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adlinsdata &ins = play->opl.dynamic_metainstruments[a];
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if((ins.adlno1 != ins.adlno2) && ((ins.flags & adlinsdata::Flag_Pseudo4op) == 0))
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++n_fourop[div];
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}
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play->m_setup.NumFourOps =
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(n_fourop[0] >= 128 * 7 / 8) ? play->m_setup.NumCards * 6
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: (n_fourop[0] < 128 * 1 / 8) ? (n_fourop[1] > 0 ? 4 : 0)
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: (play->m_setup.NumCards == 1 ? 1 : play->m_setup.NumCards * 4);
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}
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else
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{
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//For embedded bank
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for(unsigned a = 0; a < 256; ++a)
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{
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unsigned insno = banks[play->m_setup.AdlBank][a];
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if(insno == 198)
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continue;
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++n_total[a / 128];
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const adlinsdata &ins = adlins[insno];
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if((ins.adlno1 != ins.adlno2) && ((ins.flags & adlinsdata::Flag_Pseudo4op) == 0))
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++n_fourop[a / 128];
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}
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play->m_setup.NumFourOps =
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(n_fourop[0] >= (n_total[0] % 128) * 7 / 8) ? play->m_setup.NumCards * 6
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: (n_fourop[0] < (n_total[0] % 128) * 1 / 8) ? 0
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: (play->m_setup.NumCards == 1 ? 1 : play->m_setup.NumCards * 4);
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}
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play->opl.NumFourOps = play->m_setup.NumFourOps;
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if(n_fourop[0] >= n_total[0] * 15 / 16 && play->m_setup.NumFourOps == 0)
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{
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play->setErrorString("ERROR: You have selected a bank that consists almost exclusively of four-op patches.\n"
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" The results (silence + much cpu load) would be probably\n"
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" not what you want, therefore ignoring the request.\n");
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return -1;
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}
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return 0;
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}
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