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
|
#include "AudioBufferPlayer.h"
#include "AudioBuffer.h"
#include "../ServiceLocator.h"
#define NCINE_INCLUDE_OPENAL
#include "../CommonHeaders.h"
namespace nCine
{
AudioBufferPlayer::AudioBufferPlayer()
: IAudioPlayer(ObjectType::AudioBufferPlayer), audioBuffer_(nullptr)
{
}
AudioBufferPlayer::AudioBufferPlayer(AudioBuffer* audioBuffer)
: IAudioPlayer(ObjectType::AudioBufferPlayer), audioBuffer_(audioBuffer)
{
}
AudioBufferPlayer::~AudioBufferPlayer()
{
stop();
}
std::uint32_t AudioBufferPlayer::bufferId() const
{
std::uint32_t bufferId = (audioBuffer_ != nullptr ? audioBuffer_->bufferId() : 0U);
return (state_ != PlayerState::Initial && state_ != PlayerState::Stopped ? bufferId : 0U);
}
std::int32_t AudioBufferPlayer::bytesPerSample() const
{
return (audioBuffer_ != nullptr ? audioBuffer_->bytesPerSample() : 0);
}
std::int32_t AudioBufferPlayer::numChannels() const
{
return (audioBuffer_ != nullptr ? audioBuffer_->numChannels() : 0);
}
std::int32_t AudioBufferPlayer::frequency() const
{
return (audioBuffer_ != nullptr ? audioBuffer_->frequency() : 0);
}
std::int32_t AudioBufferPlayer::numSamples() const
{
return (audioBuffer_ != nullptr ? audioBuffer_->numSamples() : 0UL);
}
float AudioBufferPlayer::duration() const
{
return (audioBuffer_ != nullptr ? audioBuffer_->duration() : 0.0f);
}
std::int32_t AudioBufferPlayer::bufferSize() const
{
return (audioBuffer_ != nullptr ? audioBuffer_->bufferSize() : 0);
}
void AudioBufferPlayer::setAudioBuffer(AudioBuffer* audioBuffer)
{
stop();
audioBuffer_ = audioBuffer;
}
void AudioBufferPlayer::play()
{
IAudioDevice& device = theServiceLocator().GetAudioDevice();
switch (state_) {
case PlayerState::Initial:
case PlayerState::Stopped: {
if (audioBuffer_ == nullptr) {
break;
}
const unsigned int source = device.registerPlayer(this);
if (source == IAudioDevice::UnavailableSource) {
if (device.isValid()) {
LOGW("No more available audio sources for playing");
}
break;
}
sourceId_ = source;
alSourcei(sourceId_, AL_BUFFER, audioBuffer_->bufferId());
// Setting OpenAL source looping only if not streaming
alSourcei(sourceId_, AL_LOOPING, GetFlags(PlayerFlags::Looping));
alSourcef(sourceId_, AL_GAIN, gain_);
alSourcef(sourceId_, AL_PITCH, pitch_);
updateFilters();
bool isSourceRelative = GetFlags(PlayerFlags::SourceRelative);
bool isAs2D = GetFlags(PlayerFlags::As2D);
alSourcei(sourceId_, AL_SOURCE_RELATIVE, isSourceRelative || isAs2D ? AL_TRUE : AL_FALSE);
alSourcef(sourceId_, AL_REFERENCE_DISTANCE, IAudioDevice::ReferenceDistance);
alSourcef(sourceId_, AL_MAX_DISTANCE, IAudioDevice::MaxDistance);
setPositionInternal(getAdjustedPosition(device, position_, isSourceRelative, isAs2D));
alSourcePlay(sourceId_);
state_ = PlayerState::Playing;
break;
}
case PlayerState::Paused: {
updateFilters();
alSourcePlay(sourceId_);
state_ = PlayerState::Playing;
break;
}
}
}
void AudioBufferPlayer::pause()
{
switch (state_) {
case PlayerState::Playing: {
alSourcePause(sourceId_);
state_ = PlayerState::Paused;
break;
}
}
}
void AudioBufferPlayer::stop()
{
switch (state_) {
case PlayerState::Playing:
case PlayerState::Paused: {
alSourceStop(sourceId_);
// Detach the buffer from source
alSourcei(sourceId_, AL_BUFFER, 0);
#if defined(OPENAL_FILTERS_SUPPORTED)
if (filterHandle_ != 0) {
alSourcei(sourceId_, AL_DIRECT_FILTER, 0);
}
#endif
state_ = PlayerState::Stopped;
break;
}
}
IAudioDevice& device = theServiceLocator().GetAudioDevice();
device.unregisterPlayer(this);
}
void AudioBufferPlayer::updateState()
{
if (state_ == PlayerState::Playing) {
ALenum alState;
alGetSourcei(sourceId_, AL_SOURCE_STATE, &alState);
if (alState != AL_PLAYING) {
// Detach the buffer from source
alSourcei(sourceId_, AL_BUFFER, 0);
#if defined(OPENAL_FILTERS_SUPPORTED)
if (filterHandle_ != 0) {
alSourcei(sourceId_, AL_DIRECT_FILTER, 0);
}
#endif
state_ = PlayerState::Stopped;
IAudioDevice& device = theServiceLocator().GetAudioDevice();
device.unregisterPlayer(this);
} else {
alSourcei(sourceId_, AL_LOOPING, GetFlags(PlayerFlags::Looping));
}
}
}
}
|
