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
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
|
#include "config.h"
#include "AL/alc.h"
#include "AL/al.h"
#include "alMain.h"
#include "alSource.h"
#include "alAuxEffectSlot.h"
#include "mixer_defs.h"
#ifdef __GNUC__
#define LIKELY(x) __builtin_expect(!!(x), 1)
#define UNLIKELY(x) __builtin_expect(!!(x), 0)
#else
#define LIKELY(x) (x)
#define UNLIKELY(x) (x)
#endif
#define REAL_MERGE2(a,b) a##b
#define MERGE2(a,b) REAL_MERGE2(a,b)
#define MixDirect_Hrtf MERGE2(MixDirect_Hrtf_,SUFFIX)
#define MixDirect MERGE2(MixDirect_,SUFFIX)
#define MixSend MERGE2(MixSend_,SUFFIX)
static __inline void ApplyCoeffsStep(ALuint Offset, ALfloat (*RESTRICT Values)[2],
const ALuint irSize,
ALfloat (*RESTRICT Coeffs)[2],
ALfloat (*RESTRICT CoeffStep)[2],
ALfloat left, ALfloat right);
static __inline void ApplyCoeffs(ALuint Offset, ALfloat (*RESTRICT Values)[2],
const ALuint irSize,
ALfloat (*RESTRICT Coeffs)[2],
ALfloat left, ALfloat right);
#ifndef NO_MIXDIRECT_HRTF
void MixDirect_Hrtf(ALsource *Source, ALCdevice *Device, DirectParams *params,
const ALfloat *RESTRICT data, ALuint srcchan,
ALuint OutPos, ALuint SamplesToDo, ALuint BufferSize)
{
const ALint *RESTRICT DelayStep = params->Hrtf.DelayStep;
const ALuint IrSize = GetHrtfIrSize(Device->Hrtf);
ALfloat (*RESTRICT DryBuffer)[BUFFERSIZE];
ALfloat *RESTRICT ClickRemoval, *RESTRICT PendingClicks;
ALfloat (*RESTRICT CoeffStep)[2] = params->Hrtf.CoeffStep;
ALfloat (*RESTRICT TargetCoeffs)[2] = params->Hrtf.Coeffs[srcchan];
ALuint *RESTRICT TargetDelay = params->Hrtf.Delay[srcchan];
ALfloat *RESTRICT History = Source->Hrtf.History[srcchan];
ALfloat (*RESTRICT Values)[2] = Source->Hrtf.Values[srcchan];
ALint Counter = maxu(Source->Hrtf.Counter, OutPos) - OutPos;
ALuint Offset = Source->Hrtf.Offset + OutPos;
ALIGN(16) ALfloat Coeffs[HRIR_LENGTH][2];
ALuint Delay[2];
ALfloat left, right;
ALuint pos;
ALuint c;
DryBuffer = Device->DryBuffer;
ClickRemoval = Device->ClickRemoval;
PendingClicks = Device->PendingClicks;
pos = 0;
for(c = 0;c < IrSize;c++)
{
Coeffs[c][0] = TargetCoeffs[c][0] - (CoeffStep[c][0]*Counter);
Coeffs[c][1] = TargetCoeffs[c][1] - (CoeffStep[c][1]*Counter);
}
Delay[0] = TargetDelay[0] - (DelayStep[0]*Counter);
Delay[1] = TargetDelay[1] - (DelayStep[1]*Counter);
if(LIKELY(OutPos == 0))
{
History[Offset&SRC_HISTORY_MASK] = data[pos];
left = lerp(History[(Offset-(Delay[0]>>HRTFDELAY_BITS))&SRC_HISTORY_MASK],
History[(Offset-(Delay[0]>>HRTFDELAY_BITS)-1)&SRC_HISTORY_MASK],
(Delay[0]&HRTFDELAY_MASK)*(1.0f/HRTFDELAY_FRACONE));
right = lerp(History[(Offset-(Delay[1]>>HRTFDELAY_BITS))&SRC_HISTORY_MASK],
History[(Offset-(Delay[1]>>HRTFDELAY_BITS)-1)&SRC_HISTORY_MASK],
(Delay[1]&HRTFDELAY_MASK)*(1.0f/HRTFDELAY_FRACONE));
ClickRemoval[FrontLeft] -= Values[(Offset+1)&HRIR_MASK][0] +
Coeffs[0][0] * left;
ClickRemoval[FrontRight] -= Values[(Offset+1)&HRIR_MASK][1] +
Coeffs[0][1] * right;
}
for(pos = 0;pos < BufferSize && Counter > 0;pos++)
{
History[Offset&SRC_HISTORY_MASK] = data[pos];
left = lerp(History[(Offset-(Delay[0]>>HRTFDELAY_BITS))&SRC_HISTORY_MASK],
History[(Offset-(Delay[0]>>HRTFDELAY_BITS)-1)&SRC_HISTORY_MASK],
(Delay[0]&HRTFDELAY_MASK)*(1.0f/HRTFDELAY_FRACONE));
right = lerp(History[(Offset-(Delay[1]>>HRTFDELAY_BITS))&SRC_HISTORY_MASK],
History[(Offset-(Delay[1]>>HRTFDELAY_BITS)-1)&SRC_HISTORY_MASK],
(Delay[1]&HRTFDELAY_MASK)*(1.0f/HRTFDELAY_FRACONE));
Delay[0] += DelayStep[0];
Delay[1] += DelayStep[1];
Values[(Offset+IrSize)&HRIR_MASK][0] = 0.0f;
Values[(Offset+IrSize)&HRIR_MASK][1] = 0.0f;
Offset++;
ApplyCoeffsStep(Offset, Values, IrSize, Coeffs, CoeffStep, left, right);
DryBuffer[FrontLeft][OutPos] += Values[Offset&HRIR_MASK][0];
DryBuffer[FrontRight][OutPos] += Values[Offset&HRIR_MASK][1];
OutPos++;
Counter--;
}
Delay[0] >>= HRTFDELAY_BITS;
Delay[1] >>= HRTFDELAY_BITS;
for(;pos < BufferSize;pos++)
{
History[Offset&SRC_HISTORY_MASK] = data[pos];
left = History[(Offset-Delay[0])&SRC_HISTORY_MASK];
right = History[(Offset-Delay[1])&SRC_HISTORY_MASK];
Values[(Offset+IrSize)&HRIR_MASK][0] = 0.0f;
Values[(Offset+IrSize)&HRIR_MASK][1] = 0.0f;
Offset++;
ApplyCoeffs(Offset, Values, IrSize, Coeffs, left, right);
DryBuffer[FrontLeft][OutPos] += Values[Offset&HRIR_MASK][0];
DryBuffer[FrontRight][OutPos] += Values[Offset&HRIR_MASK][1];
OutPos++;
}
if(LIKELY(OutPos == SamplesToDo))
{
History[Offset&SRC_HISTORY_MASK] = data[pos];
left = History[(Offset-Delay[0])&SRC_HISTORY_MASK];
right = History[(Offset-Delay[1])&SRC_HISTORY_MASK];
PendingClicks[FrontLeft] += Values[(Offset+1)&HRIR_MASK][0] +
Coeffs[0][0] * left;
PendingClicks[FrontRight] += Values[(Offset+1)&HRIR_MASK][1] +
Coeffs[0][1] * right;
}
}
#endif
#ifndef NO_MIXDIRECT
void MixDirect(ALsource *Source, ALCdevice *Device, DirectParams *params,
const ALfloat *RESTRICT data, ALuint srcchan,
ALuint OutPos, ALuint SamplesToDo, ALuint BufferSize)
{
ALfloat (*RESTRICT DryBuffer)[BUFFERSIZE];
ALfloat *RESTRICT ClickRemoval, *RESTRICT PendingClicks;
ALIGN(16) ALfloat DrySend[MaxChannels];
ALuint pos;
ALuint c;
(void)Source;
DryBuffer = Device->DryBuffer;
ClickRemoval = Device->ClickRemoval;
PendingClicks = Device->PendingClicks;
for(c = 0;c < MaxChannels;c++)
DrySend[c] = params->Gains[srcchan][c];
pos = 0;
if(OutPos == 0)
{
for(c = 0;c < MaxChannels;c++)
ClickRemoval[c] -= data[pos]*DrySend[c];
}
for(c = 0;c < MaxChannels;c++)
{
for(pos = 0;pos < BufferSize;pos++)
DryBuffer[c][OutPos+pos] += data[pos]*DrySend[c];
}
if(OutPos+pos == SamplesToDo)
{
for(c = 0;c < MaxChannels;c++)
PendingClicks[c] += data[pos]*DrySend[c];
}
}
#endif
#ifndef NO_MIXSEND
void MixSend(SendParams *params, const ALfloat *RESTRICT data,
ALuint OutPos, ALuint SamplesToDo, ALuint BufferSize)
{
ALeffectslot *Slot;
ALfloat WetSend;
ALfloat *WetBuffer;
ALfloat *WetClickRemoval;
ALfloat *WetPendingClicks;
ALuint pos;
Slot = params->Slot;
WetBuffer = Slot->WetBuffer;
WetClickRemoval = Slot->ClickRemoval;
WetPendingClicks = Slot->PendingClicks;
WetSend = params->Gain;
pos = 0;
if(OutPos == 0)
{
WetClickRemoval[0] -= data[pos] * WetSend;
}
for(pos = 0;pos < BufferSize;pos++)
{
WetBuffer[OutPos] += data[pos] * WetSend;
OutPos++;
}
if(OutPos == SamplesToDo)
{
WetPendingClicks[0] += data[pos] * WetSend;
}
}
#endif
#undef MixSend
#undef MixDirect
#undef MixDirect_Hrtf
#undef MERGE2
#undef REAL_MERGE2
#undef UNLIKELY
#undef LIKELY
|
