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Working audio output by Daniel Sumorok.
Not quite the way I wanted to do it but it will do for now. (on a real Mac, the real audio hardware should be able to pull/grab the data from our buffers - an extra thread with its own set of buffers is wasteful!)
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BasiliskII/src/MacOSX/MacOSX_sound_if.cpp
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86
BasiliskII/src/MacOSX/MacOSX_sound_if.cpp
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/*
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* MacOSX_sound_if.h
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* BasiliskII
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*
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* Copyright 2006 Daniel Sumorok. All rights reserved.
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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 2 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 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, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "AudioBackEnd.h"
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#include "MacOSX_sound_if.h"
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OSXsoundOutput::OSXsoundOutput() :
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player(NULL),
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callback(NULL) {
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}
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void OSXsoundOutput::getMoreSamples(void *arg) {
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OSXsoundOutput *me;
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me = (OSXsoundOutput *)arg;
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if(me == NULL) {
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return;
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}
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if(me->callback == NULL) {
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return;
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}
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me->callback();
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}
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int OSXsoundOutput::start(int bitsPerSample, int numChannels, int sampleRate) {
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stop();
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player = new AudioBackEnd(bitsPerSample, numChannels, sampleRate);
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if(player != NULL) {
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player->setCallback(getMoreSamples, (void *)this);
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player->Start();
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}
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return 0;
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}
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int OSXsoundOutput::stop() {
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if(player != NULL) {
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player->Stop();
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delete player;
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player = NULL;
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}
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return 0;
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}
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OSXsoundOutput::~OSXsoundOutput() {
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stop();
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}
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void OSXsoundOutput::setCallback(audioCallback fn) {
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callback = fn;
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}
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unsigned int OSXsoundOutput::bufferSizeFrames() {
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if(player != NULL) {
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return player->BufferSizeFrames();
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}
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return 0;
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}
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int OSXsoundOutput::sendAudioBuffer(void *buffer, int numFrames) {
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if(player != NULL) {
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return player->sendAudioBuffer(buffer, numFrames);
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}
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return 0;
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}
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41
BasiliskII/src/MacOSX/MacOSX_sound_if.h
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BasiliskII/src/MacOSX/MacOSX_sound_if.h
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/*
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* MacOSX_sound_if.h
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* BasiliskII
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*
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* Copyright 2006 Daniel Sumorok. All rights reserved.
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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 2 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 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, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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typedef int (*audioCallback)(void);
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class AudioBackEnd;
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class OSXsoundOutput {
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private:
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static void getMoreSamples(void *arg);
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AudioBackEnd *player;
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audioCallback callback;
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public:
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OSXsoundOutput();
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~OSXsoundOutput();
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int start(int bitsPerSample, int numChannels, int sampleRate);
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int stop();
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int putBuffer(void *buffer, int numSamples);
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void setCallback(audioCallback fn);
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unsigned int bufferSizeFrames();
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int sendAudioBuffer(void *buffer, int numFrames);
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};
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