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