1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
|
// Copyright (C) 2003 Dolphin Project.
// 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, version 2.0.
// 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 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
#include "AudioCommon.h"
#include "XAudio2Stream.h"
const int NUM_BUFFERS = 3;
const int SAMPLES_PER_BUFFER = 96;
const int NUM_CHANNELS = 2;
const int BUFFER_SIZE = SAMPLES_PER_BUFFER * NUM_CHANNELS;
const int BUFFER_SIZE_BYTES = BUFFER_SIZE * sizeof(s16);
void StreamingVoiceContext::SubmitBuffer(PBYTE buf_data)
{
XAUDIO2_BUFFER buf = {};
buf.AudioBytes = BUFFER_SIZE_BYTES;
buf.pContext = buf_data;
buf.pAudioData = buf_data;
m_source_voice->SubmitSourceBuffer(&buf);
}
StreamingVoiceContext::StreamingVoiceContext(IXAudio2 *pXAudio2, CMixer *pMixer, Common::Event& pSyncEvent)
: m_mixer(pMixer)
, m_sound_sync_event(pSyncEvent)
, xaudio_buffer(new BYTE[NUM_BUFFERS * BUFFER_SIZE_BYTES]())
{
WAVEFORMATEXTENSIBLE wfx = {};
wfx.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
wfx.Format.nSamplesPerSec = m_mixer->GetSampleRate();
wfx.Format.nChannels = 2;
wfx.Format.wBitsPerSample = 16;
wfx.Format.nBlockAlign = wfx.Format.nChannels*wfx.Format.wBitsPerSample / 8;
wfx.Format.nAvgBytesPerSec = wfx.Format.nSamplesPerSec * wfx.Format.nBlockAlign;
wfx.Format.cbSize = sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX);
wfx.Samples.wValidBitsPerSample = 16;
wfx.dwChannelMask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT;
wfx.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
// create source voice
HRESULT hr;
if (FAILED(hr = pXAudio2->CreateSourceVoice(&m_source_voice, &wfx.Format, XAUDIO2_VOICE_NOSRC, 1.0f, this)))
{
PanicAlertT("XAudio2 CreateSourceVoice failed: %#X", hr);
return;
}
m_source_voice->Start();
// start buffers with silence
for (int i = 0; i != NUM_BUFFERS; ++i)
SubmitBuffer(xaudio_buffer.get() + (i * BUFFER_SIZE_BYTES));
}
StreamingVoiceContext::~StreamingVoiceContext()
{
if (m_source_voice)
{
m_source_voice->Stop();
m_source_voice->DestroyVoice();
}
}
void StreamingVoiceContext::Stop()
{
if (m_source_voice)
m_source_voice->Stop();
}
void StreamingVoiceContext::Play()
{
if (m_source_voice)
m_source_voice->Start();
}
void StreamingVoiceContext::OnBufferEnd(void* context)
{
// buffer end callback; gets SAMPLES_PER_BUFFER samples for a new buffer
if (!m_source_voice || !context)
return;
//m_sound_sync_event->Wait(); // sync
//m_sound_sync_event->Spin(); // or tight sync
m_mixer->Mix(static_cast<short*>(context), SAMPLES_PER_BUFFER);
SubmitBuffer(static_cast<BYTE*>(context));
}
bool XAudio2::Start()
{
HRESULT hr;
// callback dosent seem to run on a speecific cpu anyways
IXAudio2* xaudptr;
if (FAILED(hr = XAudio2Create(&xaudptr, 0, XAUDIO2_DEFAULT_PROCESSOR)))
{
PanicAlertT("XAudio2 init failed: %#X", hr);
Stop();
return false;
}
m_xaudio2 = std::unique_ptr<IXAudio2, Releaser>(xaudptr);
// XAudio2 master voice
// XAUDIO2_DEFAULT_CHANNELS instead of 2 for expansion?
if (FAILED(hr = m_xaudio2->CreateMasteringVoice(&m_mastering_voice, 2, m_mixer->GetSampleRate())))
{
PanicAlertT("XAudio2 master voice creation failed: %#X", hr);
Stop();
return false;
}
// Volume
m_mastering_voice->SetVolume(m_volume);
m_voice_context = std::unique_ptr<StreamingVoiceContext>
(new StreamingVoiceContext(m_xaudio2.get(), m_mixer, m_sound_sync_event));
return true;
}
void XAudio2::SetVolume(int volume)
{
//linear 1- .01
m_volume = (float)volume / 100.f;
if (m_mastering_voice)
m_mastering_voice->SetVolume(m_volume);
}
void XAudio2::Update()
{
//m_sound_sync_event.Set();
//static int xi = 0;
//if (100000 == ++xi)
//{
// xi = 0;
// XAUDIO2_PERFORMANCE_DATA perfData;
// pXAudio2->GetPerformanceData(&perfData);
// NOTICE_LOG(DSPHLE, "XAudio2 latency (samples): %i", perfData.CurrentLatencyInSamples);
// NOTICE_LOG(DSPHLE, "XAudio2 total glitches: %i", perfData.GlitchesSinceEngineStarted);
//}
}
void XAudio2::Clear(bool mute)
{
m_muted = mute;
if (m_voice_context)
{
if (m_muted)
m_voice_context->Stop();
else
m_voice_context->Play();
}
}
void XAudio2::Stop()
{
//m_sound_sync_event.Set();
m_voice_context.reset();
if (m_mastering_voice)
{
m_mastering_voice->DestroyVoice();
m_mastering_voice = nullptr;
}
m_xaudio2.reset(); // release interface
}
|
