aboutsummaryrefslogtreecommitdiffstats
path: root/Alc/mixer_neon.c
blob: 246b4308cf0deb21e09cd861cd45710370ae7426 (plain)
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
#include "config.h"

#ifdef HAVE_ARM_NEON_H
#include <arm_neon.h>
#endif

#include "AL/al.h"
#include "AL/alc.h"
#include "alMain.h"
#include "alu.h"


static __inline void ApplyCoeffsStep(ALuint Offset, ALfloat (*RESTRICT Values)[2],
                                     ALfloat (*RESTRICT Coeffs)[2],
                                     ALfloat (*RESTRICT CoeffStep)[2],
                                     ALfloat left, ALfloat right)
{
    ALuint c;
    for(c = 0;c < HRIR_LENGTH;c++)
    {
        const ALuint off = (Offset+c)&HRIR_MASK;
        Values[off][0] += Coeffs[c][0] * left;
        Values[off][1] += Coeffs[c][1] * right;
        Coeffs[c][0] += CoeffStep[c][0];
        Coeffs[c][1] += CoeffStep[c][1];
    }
}

static __inline void ApplyCoeffs(ALuint Offset, ALfloat (*RESTRICT Values)[2],
                                 ALfloat (*RESTRICT Coeffs)[2],
                                 ALfloat left, ALfloat right)
{
    ALuint c;
    float32x4_t leftright4;
    {
        float32x2_t leftright2 = vdup_n_f32(0.0);
        leftright2 = vset_lane_f32(left, leftright2, 0);
        leftright2 = vset_lane_f32(right, leftright2, 1);
        leftright4 = vcombine_f32(leftright2, leftright2);
    }
    for(c = 0;c < HRIR_LENGTH;c += 2)
    {
        const ALuint o0 = (Offset+c)&HRIR_MASK;
        const ALuint o1 = (o0+1)&HRIR_MASK;
        float32x4_t vals = vcombine_f32(vld1_f32((float32_t*)&Values[o0][0]),
                                        vld1_f32((float32_t*)&Values[o1][0]));
        float32x4_t coefs = vld1q_f32((float32_t*)&Coeffs[c][0]);

        vals = vmlaq_f32(vals, coefs, leftright4);

        vst1_f32((float32_t*)&Values[o0][0], vget_low_f32(vals));
        vst1_f32((float32_t*)&Values[o1][0], vget_high_f32(vals));
    }
}


static __inline void ApplyValue(ALfloat *RESTRICT Output, ALfloat value, const ALfloat *DrySend)
{
    ALuint c;
    for(c = 0;c < MaxChannels;c++)
        Output[c] += value*DrySend[c];
}


#define SUFFIX Neon
#define Sampler point32
#include "mixer_inc.c"
#undef Sampler
#define Sampler lerp32
#include "mixer_inc.c"
#undef Sampler
#define Sampler cubic32
#include "mixer_inc.c"
#undef Sampler
#undef SUFFIX