1/* Copyright (c) 2013-2015 Jeffrey Pfau
 2 *
 3 * This Source Code Form is subject to the terms of the Mozilla Public
 4 * License, v. 2.0. If a copy of the MPL was not distributed with this
 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 6#include "AudioProcessorQt.h"
 7
 8#include "AudioDevice.h"
 9
10#include <QAudioOutput>
11
12extern "C" {
13#include "gba/supervisor/thread.h"
14}
15
16using namespace QGBA;
17
18AudioProcessorQt::AudioProcessorQt(QObject* parent)
19	: AudioProcessor(parent)
20	, m_audioOutput(nullptr)
21	, m_device(nullptr)
22{
23}
24
25void AudioProcessorQt::setInput(GBAThread* input) {
26	AudioProcessor::setInput(input);
27	if (m_device) {
28		m_device->setInput(input);
29		if (m_audioOutput) {
30			m_device->setFormat(m_audioOutput->format());
31		}
32	}
33}
34
35void AudioProcessorQt::start() {
36	if (!input()) {
37		return;
38	}
39
40	if (!m_device) {
41		m_device = new AudioDevice(this);
42	}
43
44	if (!m_audioOutput) {
45		QAudioFormat format;
46		format.setSampleRate(44100);
47		format.setChannelCount(2);
48		format.setSampleSize(16);
49		format.setCodec("audio/pcm");
50		format.setByteOrder(QAudioFormat::LittleEndian);
51		format.setSampleType(QAudioFormat::SignedInt);
52
53		m_audioOutput = new QAudioOutput(format, this);
54		m_audioOutput->setCategory("game");
55	}
56
57	m_device->setInput(input());
58	m_device->setFormat(m_audioOutput->format());
59	m_audioOutput->setBufferSize(input()->audioBuffers * 4);
60
61	m_audioOutput->start(m_device);
62}
63
64void AudioProcessorQt::pause() {
65	if (m_audioOutput) {
66		m_audioOutput->stop();
67	}
68}
69
70void AudioProcessorQt::setBufferSamples(int samples) {
71	AudioProcessor::setBufferSamples(samples);
72	if (m_audioOutput) {
73		m_audioOutput->stop();
74		m_audioOutput->setBufferSize(samples * 4);
75		m_audioOutput->start(m_device);
76	}
77}
78
79void AudioProcessorQt::inputParametersChanged() {
80	if (m_device) {
81		m_device->setFormat(m_audioOutput->format());
82	}
83}