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/*
* libADLMIDI is a free MIDI to WAV conversion library with OPL3 emulation
*
* Original ADLMIDI code: Copyright (c) 2010-2014 Joel Yliluoma <bisqwit@iki.fi>
* ADLMIDI Library API: Copyright (c) 2017 Vitaly Novichkov <admin@wohlnet.ru>
*
* Library is based on the ADLMIDI, a MIDI player for Linux and Windows with OPL3 emulation:
* http://iki.fi/bisqwit/source/adlmidi.html
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "adlmidi_private.hpp"
std::string ADLMIDI_ErrorString;
int adlRefreshNumCards(ADL_MIDIPlayer *device)
{
unsigned n_fourop[2] = {0, 0}, n_total[2] = {0, 0};
MIDIplay *play = reinterpret_cast<MIDIplay *>(device->adl_midiPlayer);
//Automatically calculate how much 4-operator channels is necessary
if(play->opl.AdlBank == ~0u)
{
//For custom bank
for(size_t a = 0; a < play->opl.dynamic_metainstruments.size(); ++a)
{
size_t div = (a >= play->opl.dynamic_percussion_offset) ? 1 : 0;
++n_total[div];
adlinsdata &ins = play->opl.dynamic_metainstruments[a];
if((ins.adlno1 != ins.adlno2) && ((ins.flags & adlinsdata::Flag_Pseudo4op) == 0))
++n_fourop[div];
}
play->m_setup.NumFourOps =
(n_fourop[0] >= 128 * 7 / 8) ? play->m_setup.NumCards * 6
: (n_fourop[0] < 128 * 1 / 8) ? (n_fourop[1] > 0 ? 4 : 0)
: (play->m_setup.NumCards == 1 ? 1 : play->m_setup.NumCards * 4);
}
else
{
//For embedded bank
for(unsigned a = 0; a < 256; ++a)
{
unsigned insno = banks[play->m_setup.AdlBank][a];
if(insno == 198)
continue;
++n_total[a / 128];
const adlinsdata &ins = adlins[insno];
if((ins.adlno1 != ins.adlno2) && ((ins.flags & adlinsdata::Flag_Pseudo4op) == 0))
++n_fourop[a / 128];
}
play->m_setup.NumFourOps =
(n_fourop[0] >= (n_total[0] % 128) * 7 / 8) ? play->m_setup.NumCards * 6
: (n_fourop[0] < (n_total[0] % 128) * 1 / 8) ? 0
: (play->m_setup.NumCards == 1 ? 1 : play->m_setup.NumCards * 4);
}
play->opl.NumFourOps = play->m_setup.NumFourOps;
if(n_fourop[0] >= n_total[0] * 15 / 16 && play->m_setup.NumFourOps == 0)
{
play->setErrorString("ERROR: You have selected a bank that consists almost exclusively of four-op patches.\n"
" The results (silence + much cpu load) would be probably\n"
" not what you want, therefore ignoring the request.\n");
return -1;
}
return 0;
}
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