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Working audio output by Daniel Sumorok.

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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!)
This commit is contained in:
nigel 2006-07-28 13:42:29 +00:00
parent 938c61485c
commit c68e5d916d
2 changed files with 127 additions and 0 deletions
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86
BasiliskII/src/MacOSX/MacOSX_sound_if.cpp Normal file
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/*
* MacOSX_sound_if.h
* BasiliskII
*
* Copyright 2006 Daniel Sumorok. All rights reserved.
*
* 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; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "AudioBackEnd.h"
#include "MacOSX_sound_if.h"
OSXsoundOutput::OSXsoundOutput() :
player(NULL),
callback(NULL) {
}
void OSXsoundOutput::getMoreSamples(void *arg) {
OSXsoundOutput *me;
me = (OSXsoundOutput *)arg;
if(me == NULL) {
return;
}
if(me->callback == NULL) {
return;
}
me->callback();
}
int OSXsoundOutput::start(int bitsPerSample, int numChannels, int sampleRate) {
stop();
player = new AudioBackEnd(bitsPerSample, numChannels, sampleRate);
if(player != NULL) {
player->setCallback(getMoreSamples, (void *)this);
player->Start();
}
return 0;
}
int OSXsoundOutput::stop() {
if(player != NULL) {
player->Stop();
delete player;
player = NULL;
}
return 0;
}
OSXsoundOutput::~OSXsoundOutput() {
stop();
}
void OSXsoundOutput::setCallback(audioCallback fn) {
callback = fn;
}
unsigned int OSXsoundOutput::bufferSizeFrames() {
if(player != NULL) {
return player->BufferSizeFrames();
}
return 0;
}
int OSXsoundOutput::sendAudioBuffer(void *buffer, int numFrames) {
if(player != NULL) {
return player->sendAudioBuffer(buffer, numFrames);
}
return 0;
}

41
BasiliskII/src/MacOSX/MacOSX_sound_if.h Normal file
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/*
* MacOSX_sound_if.h
* BasiliskII
*
* Copyright 2006 Daniel Sumorok. All rights reserved.
*
* 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; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
typedef int (*audioCallback)(void);
class AudioBackEnd;
class OSXsoundOutput {
private:
static void getMoreSamples(void *arg);
AudioBackEnd *player;
audioCallback callback;
public:
OSXsoundOutput();
~OSXsoundOutput();
int start(int bitsPerSample, int numChannels, int sampleRate);
int stop();
int putBuffer(void *buffer, int numSamples);
void setCallback(audioCallback fn);
unsigned int bufferSizeFrames();
int sendAudioBuffer(void *buffer, int numFrames);
};