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lmms/plugins/FreeBoy/GbApuWrapper.h
2024-06-17 22:48:04 +01:00

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/*
* GbApuWrapper.h - Gb_Apu subclass which allows direct buffer access
* Copyright (c) 2017 Tres Finocchiaro <tres.finocchiaro/at/gmail.com>
*
* This file is part of LMMS - https://lmms.io
*
* 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 2 of the License, or (at your option) 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 (see COPYING); if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA.
*
*/
#ifndef LMMS_GB_APU_WRAPPER_H
#define LMMS_GB_APU_WRAPPER_H
#include <Gb_Apu.h>
#include <Multi_Buffer.h>
namespace lmms
{
class GbApuWrapper : private Gb_Apu
{
public:
GbApuWrapper() = default;
~GbApuWrapper() = default;
blargg_err_t setSampleRate(long sampleRate, long clockRate);
void writeRegister(unsigned addr, int data) { Gb_Apu::write_register(fakeClock(), addr, data); }
long samplesAvail() const;
long readSamples(blip_sample_t* out, long count);
void trebleEq(const blip_eq_t& eq) { Gb_Apu::treble_eq(eq); }
void bassFreq(int freq);
void endFrame(blip_time_t endTime);
private:
Stereo_Buffer m_buf;
// Fake CPU timing
blip_time_t fakeClock() { return m_time += 4; }
blip_time_t m_time = 0;
};
} // namespace lmms
#endif // LMMS_GB_APU_WRAPPER_H