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#include "LogController.h"
10
11#include <QAudioOutput>
12
13#include <mgba/core/core.h>
14#include <mgba/core/thread.h>
15
16using namespace QGBA;
17
18AudioProcessorQt::AudioProcessorQt(QObject* parent)
19	: AudioProcessor(parent)
20	, m_audioOutput(nullptr)
21	, m_device(nullptr)
22	, m_sampleRate(44100)
23{
24}
25
26void AudioProcessorQt::setInput(mCoreThread* input) {
27	AudioProcessor::setInput(input);
28	if (m_device) {
29		m_device->setInput(input);
30		if (m_audioOutput) {
31			m_device->setFormat(m_audioOutput->format());
32		}
33	}
34}
35
36bool AudioProcessorQt::start() {
37	if (!input()) {
38		LOG(QT, WARN) << tr("Can't start an audio processor without input");
39		return false;
40	}
41
42	if (!m_device) {
43		m_device = new AudioDevice(this);
44	}
45
46	if (!m_audioOutput) {
47		QAudioFormat format;
48		format.setSampleRate(m_sampleRate);
49		format.setChannelCount(2);
50		format.setSampleSize(16);
51		format.setCodec("audio/pcm");
52		format.setByteOrder(QAudioFormat::Endian(QSysInfo::ByteOrder));
53		format.setSampleType(QAudioFormat::SignedInt);
54
55		m_audioOutput = new QAudioOutput(format, this);
56		m_audioOutput->setCategory("game");
57	}
58
59	m_device->setInput(input());
60	m_device->setFormat(m_audioOutput->format());
61
62	m_audioOutput->start(m_device);
63	return m_audioOutput->state() == QAudio::ActiveState;
64}
65
66void AudioProcessorQt::pause() {
67	if (m_audioOutput) {
68		m_audioOutput->stop();
69	}
70}
71
72void AudioProcessorQt::setBufferSamples(int samples) {
73}
74
75void AudioProcessorQt::inputParametersChanged() {
76	if (m_device) {
77		m_device->setFormat(m_audioOutput->format());
78	}
79}
80
81void AudioProcessorQt::requestSampleRate(unsigned rate) {
82	m_sampleRate = rate;
83	if (m_device) {
84		QAudioFormat format(m_audioOutput->format());
85		format.setSampleRate(rate);
86		m_device->setFormat(format);
87	}
88}
89
90unsigned AudioProcessorQt::sampleRate() const {
91	if (!m_audioOutput) {
92		return 0;
93	}
94	return m_audioOutput->format().sampleRate();
95}