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// Gb_Snd_Emu 0.1.4. http://www.slack.net/~ant/libs/
#include "Basic_Gb_Apu.h"
/* Copyright (C) 2003-2005 Shay Green. This module is free software; you
can redistribute it and/or modify it under the terms of the GNU Lesser
General Public License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version. This
module 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 Lesser General Public License for
more details. You should have received a copy of the GNU Lesser General
Public License along with this module; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
gb_time_t const frame_length = 70224;
Basic_Gb_Apu::Basic_Gb_Apu()
{
time = 0;
// Adjust frequency equalization to make it sound like a tiny speaker
apu.treble_eq( -20.0 ); // lower values muffle it more
buf.bass_freq( 461 ); // higher values simulate smaller speaker
}
Basic_Gb_Apu::~Basic_Gb_Apu()
{
}
blargg_err_t Basic_Gb_Apu::set_sample_rate( long rate )
{
apu.output( buf.center(), buf.left(), buf.right() );
buf.clock_rate( 4194304 );
return buf.set_sample_rate( rate );
}
void Basic_Gb_Apu::write_register( gb_addr_t addr, int data )
{
apu.write_register( clock(), addr, data );
}
int Basic_Gb_Apu::read_register( gb_addr_t addr )
{
return apu.read_register( clock(), addr );
}
void Basic_Gb_Apu::end_frame()
{
time = 0;
bool stereo = apu.end_frame( frame_length );
buf.end_frame( frame_length, stereo );
}
long Basic_Gb_Apu::samples_avail() const
{
return buf.samples_avail();
}
long Basic_Gb_Apu::read_samples( sample_t* out, long count )
{
return buf.read_samples( out, count );
}
//added by 589 --->
void Basic_Gb_Apu::reset()
{
apu.reset();
}
void Basic_Gb_Apu::treble_eq( const blip_eq_t& eq )
{
apu.treble_eq( eq );
}
void Basic_Gb_Apu::bass_freq( int bf )
{
buf.bass_freq( bf );
}
// <---
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