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Move the B-Format HRTF virtual speaker stuff to InitHrtfPanning

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This keeps the decoder matrices and coefficient mapping together for if it
changes in the future.
This commit is contained in:
Chris Robinson
2017-01-18 19:16:24 -08:00
parent e8ac0e5bfd
commit aa56af1ecb
4 changed files with 96 additions and 100 deletions
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Alc/hrtf.c
+9 -66
View File
@@ -136,82 +136,28 @@ void GetHrtfCoeffs(const struct Hrtf *Hrtf, ALfloat elevation, ALfloat azimuth,
}
ALsizei BuildBFormatHrtf(const struct Hrtf *Hrtf, ALfloat (*coeffs)[HRIR_LENGTH][2], ALsizei NumChannels, const ALsizei *AmbiMap)
ALsizei BuildBFormatHrtf(const struct Hrtf *Hrtf, ALfloat (*coeffs)[HRIR_LENGTH][2], ALsizei NumChannels, const ALfloat (*restrict AmbiPoints)[2], const ALfloat (*restrict AmbiMatrix)[2][MAX_AMBI_COEFFS], ALsizei AmbiCount)
{
#define HRTF_AMBI_CHAN_COUNT 14
/* NOTE: azimuth goes clockwise. */
static const struct {
ALfloat elevation;
ALfloat azimuth;
} Ambi3DPoints[HRTF_AMBI_CHAN_COUNT] = {
{ DEG2RAD( 90.0f), DEG2RAD( 0.0f) },
{ DEG2RAD( 35.0f), DEG2RAD( -45.0f) },
{ DEG2RAD( 35.0f), DEG2RAD( 45.0f) },
{ DEG2RAD( 35.0f), DEG2RAD( 135.0f) },
{ DEG2RAD( 35.0f), DEG2RAD(-135.0f) },
{ DEG2RAD( 0.0f), DEG2RAD( 0.0f) },
{ DEG2RAD( 0.0f), DEG2RAD( 90.0f) },
{ DEG2RAD( 0.0f), DEG2RAD( 180.0f) },
{ DEG2RAD( 0.0f), DEG2RAD( -90.0f) },
{ DEG2RAD(-35.0f), DEG2RAD( -45.0f) },
{ DEG2RAD(-35.0f), DEG2RAD( 45.0f) },
{ DEG2RAD(-35.0f), DEG2RAD( 135.0f) },
{ DEG2RAD(-35.0f), DEG2RAD(-135.0f) },
{ DEG2RAD(-90.0f), DEG2RAD( 0.0f) },
};
static const ALfloat Ambi3DMatrixFOA[HRTF_AMBI_CHAN_COUNT][2][MAX_AMBI_COEFFS] = {
{ { 1.88982237e-001f, 0.00000000e+000f, 1.90399923e-001f, 0.00000000e+000f }, { 7.14285714e-002f, 0.00000000e+000f, 1.24646009e-001f, 0.00000000e+000f } },
{ { 1.88982237e-001f, 1.09057783e-001f, 1.09208910e-001f, 1.09057783e-001f }, { 7.14285714e-002f, 7.13950780e-002f, 7.14940135e-002f, 7.13950780e-002f } },
{ { 1.88982237e-001f, -1.09057783e-001f, 1.09208910e-001f, 1.09057783e-001f }, { 7.14285714e-002f, -7.13950780e-002f, 7.14940135e-002f, 7.13950780e-002f } },
{ { 1.88982237e-001f, -1.09057783e-001f, 1.09208910e-001f, -1.09057783e-001f }, { 7.14285714e-002f, -7.13950780e-002f, 7.14940135e-002f, -7.13950780e-002f } },
{ { 1.88982237e-001f, 1.09057783e-001f, 1.09208910e-001f, -1.09057783e-001f }, { 7.14285714e-002f, 7.13950780e-002f, 7.14940135e-002f, -7.13950780e-002f } },
{ { 1.88982237e-001f, 0.00000000e+000f, 0.00000000e+000f, 1.88281281e-001f }, { 7.14285714e-002f, 0.00000000e+000f, 0.00000000e+000f, 1.23259031e-001f } },
{ { 1.88982237e-001f, -1.88281281e-001f, 0.00000000e+000f, 0.00000000e+000f }, { 7.14285714e-002f, -1.23259031e-001f, 0.00000000e+000f, 0.00000000e+000f } },
{ { 1.88982237e-001f, 0.00000000e+000f, 0.00000000e+000f, -1.88281281e-001f }, { 7.14285714e-002f, 0.00000000e+000f, 0.00000000e+000f, -1.23259031e-001f } },
{ { 1.88982237e-001f, 1.88281281e-001f, 0.00000000e+000f, 0.00000000e+000f }, { 7.14285714e-002f, 1.23259031e-001f, 0.00000000e+000f, 0.00000000e+000f } },
{ { 1.88982237e-001f, 1.09057783e-001f, -1.09208910e-001f, 1.09057783e-001f }, { 7.14285714e-002f, 7.13950780e-002f, -7.14940135e-002f, 7.13950780e-002f } },
{ { 1.88982237e-001f, -1.09057783e-001f, -1.09208910e-001f, 1.09057783e-001f }, { 7.14285714e-002f, -7.13950780e-002f, -7.14940135e-002f, 7.13950780e-002f } },
{ { 1.88982237e-001f, -1.09057783e-001f, -1.09208910e-001f, -1.09057783e-001f }, { 7.14285714e-002f, -7.13950780e-002f, -7.14940135e-002f, -7.13950780e-002f } },
{ { 1.88982237e-001f, 1.09057783e-001f, -1.09208910e-001f, -1.09057783e-001f }, { 7.14285714e-002f, 7.13950780e-002f, -7.14940135e-002f, -7.13950780e-002f } },
{ { 1.88982237e-001f, 0.00000000e+000f, -1.90399923e-001f, 0.00000000e+000f }, { 7.14285714e-002f, 0.00000000e+000f, -1.24646009e-001f, 0.00000000e+000f } }
}, Ambi3DMatrixHOA[HRTF_AMBI_CHAN_COUNT][2][MAX_AMBI_COEFFS] = {
{ { 1.43315266e-001f, 0.00000000e+000f, 1.90399923e-001f, 0.00000000e+000f, 0.00000000e+000f, 0.00000000e+000f, 1.18020996e-001f, 0.00000000e+000f, 0.00000000e+000f }, { 7.26741039e-002f, 0.00000000e+000f, 1.24646009e-001f, 0.00000000e+000f, 0.00000000e+000f, 0.00000000e+000f, 1.49618920e-001f, 0.00000000e+000f, 0.00000000e+000f } },
{ { 1.40852210e-001f, 1.09057783e-001f, 1.09208910e-001f, 1.09057783e-001f, 7.58818830e-002f, 7.66295578e-002f, -3.28314629e-004f, 7.66295578e-002f, 0.00000000e+000f }, { 7.14251066e-002f, 7.13950780e-002f, 7.14940135e-002f, 7.13950780e-002f, 9.61978444e-002f, 9.71456952e-002f, -4.16214759e-004f, 9.71456952e-002f, 0.00000000e+000f } },
{ { 1.40852210e-001f, -1.09057783e-001f, 1.09208910e-001f, 1.09057783e-001f, -7.58818830e-002f, -7.66295578e-002f, -3.28314629e-004f, 7.66295578e-002f, 0.00000000e+000f }, { 7.14251066e-002f, -7.13950780e-002f, 7.14940135e-002f, 7.13950780e-002f, -9.61978444e-002f, -9.71456952e-002f, -4.16214759e-004f, 9.71456952e-002f, 0.00000000e+000f } },
{ { 1.40852210e-001f, -1.09057783e-001f, 1.09208910e-001f, -1.09057783e-001f, 7.58818830e-002f, -7.66295578e-002f, -3.28314629e-004f, -7.66295578e-002f, 0.00000000e+000f }, { 7.14251066e-002f, -7.13950780e-002f, 7.14940135e-002f, -7.13950780e-002f, 9.61978444e-002f, -9.71456952e-002f, -4.16214759e-004f, -9.71456952e-002f, 0.00000000e+000f } },
{ { 1.40852210e-001f, 1.09057783e-001f, 1.09208910e-001f, -1.09057783e-001f, -7.58818830e-002f, 7.66295578e-002f, -3.28314629e-004f, -7.66295578e-002f, 0.00000000e+000f }, { 7.14251066e-002f, 7.13950780e-002f, 7.14940135e-002f, -7.13950780e-002f, -9.61978444e-002f, 9.71456952e-002f, -4.16214759e-004f, -9.71456952e-002f, 0.00000000e+000f } },
{ { 1.39644596e-001f, 0.00000000e+000f, 0.00000000e+000f, 1.88281281e-001f, 0.00000000e+000f, 0.00000000e+000f, -5.83538687e-002f, 0.00000000e+000f, 1.01835015e-001f }, { 7.08127349e-002f, 0.00000000e+000f, 0.00000000e+000f, 1.23259031e-001f, 0.00000000e+000f, 0.00000000e+000f, -7.39770307e-002f, 0.00000000e+000f, 1.29099445e-001f } },
{ { 1.39644596e-001f, -1.88281281e-001f, 0.00000000e+000f, 0.00000000e+000f, 0.00000000e+000f, 0.00000000e+000f, -5.83538687e-002f, 0.00000000e+000f, -1.01835015e-001f }, { 7.08127349e-002f, -1.23259031e-001f, 0.00000000e+000f, 0.00000000e+000f, 0.00000000e+000f, 0.00000000e+000f, -7.39770307e-002f, 0.00000000e+000f, -1.29099445e-001f } },
{ { 1.39644596e-001f, 0.00000000e+000f, 0.00000000e+000f, -1.88281281e-001f, 0.00000000e+000f, 0.00000000e+000f, -5.83538687e-002f, 0.00000000e+000f, 1.01835015e-001f }, { 7.08127349e-002f, 0.00000000e+000f, 0.00000000e+000f, -1.23259031e-001f, 0.00000000e+000f, 0.00000000e+000f, -7.39770307e-002f, 0.00000000e+000f, 1.29099445e-001f } },
{ { 1.39644596e-001f, 1.88281281e-001f, 0.00000000e+000f, 0.00000000e+000f, 0.00000000e+000f, 0.00000000e+000f, -5.83538687e-002f, 0.00000000e+000f, -1.01835015e-001f }, { 7.08127349e-002f, 1.23259031e-001f, 0.00000000e+000f, 0.00000000e+000f, 0.00000000e+000f, 0.00000000e+000f, -7.39770307e-002f, 0.00000000e+000f, -1.29099445e-001f } },
{ { 1.40852210e-001f, 1.09057783e-001f, -1.09208910e-001f, 1.09057783e-001f, 7.58818830e-002f, -7.66295578e-002f, -3.28314629e-004f, -7.66295578e-002f, 0.00000000e+000f }, { 7.14251066e-002f, 7.13950780e-002f, -7.14940135e-002f, 7.13950780e-002f, 9.61978444e-002f, -9.71456952e-002f, -4.16214759e-004f, -9.71456952e-002f, 0.00000000e+000f } },
{ { 1.40852210e-001f, -1.09057783e-001f, -1.09208910e-001f, 1.09057783e-001f, -7.58818830e-002f, 7.66295578e-002f, -3.28314629e-004f, -7.66295578e-002f, 0.00000000e+000f }, { 7.14251066e-002f, -7.13950780e-002f, -7.14940135e-002f, 7.13950780e-002f, -9.61978444e-002f, 9.71456952e-002f, -4.16214759e-004f, -9.71456952e-002f, 0.00000000e+000f } },
{ { 1.40852210e-001f, -1.09057783e-001f, -1.09208910e-001f, -1.09057783e-001f, 7.58818830e-002f, 7.66295578e-002f, -3.28314629e-004f, 7.66295578e-002f, 0.00000000e+000f }, { 7.14251066e-002f, -7.13950780e-002f, -7.14940135e-002f, -7.13950780e-002f, 9.61978444e-002f, 9.71456952e-002f, -4.16214759e-004f, 9.71456952e-002f, 0.00000000e+000f } },
{ { 1.40852210e-001f, 1.09057783e-001f, -1.09208910e-001f, -1.09057783e-001f, -7.58818830e-002f, -7.66295578e-002f, -3.28314629e-004f, 7.66295578e-002f, 0.00000000e+000f }, { 7.14251066e-002f, 7.13950780e-002f, -7.14940135e-002f, -7.13950780e-002f, -9.61978444e-002f, -9.71456952e-002f, -4.16214759e-004f, 9.71456952e-002f, 0.00000000e+000f } },
{ { 1.43315266e-001f, 0.00000000e+000f, -1.90399923e-001f, 0.00000000e+000f, 0.00000000e+000f, 0.00000000e+000f, 1.18020996e-001f, 0.00000000e+000f, 0.00000000e+000f }, { 7.26741039e-002f, 0.00000000e+000f, -1.24646009e-001f, 0.00000000e+000f, 0.00000000e+000f, 0.00000000e+000f, 1.49618920e-001f, 0.00000000e+000f, 0.00000000e+000f } },
};
const ALfloat (*Ambi3DMatrix)[2][MAX_AMBI_COEFFS] = AmbiMap ? Ambi3DMatrixHOA : Ambi3DMatrixFOA;
/* Set this to 2 for dual-band HRTF processing. May require a higher quality
* band-splitter, or better calculation of the new IR length to deal with the
* tail generated by the filter.
*/
#define NUM_BANDS 2
BandSplitter splitter;
ALsizei lidx[HRTF_AMBI_CHAN_COUNT], ridx[HRTF_AMBI_CHAN_COUNT];
ALsizei lidx[HRTF_AMBI_MAX_CHANNELS], ridx[HRTF_AMBI_MAX_CHANNELS];
ALsizei min_delay = HRTF_HISTORY_LENGTH;
ALfloat temps[3][HRIR_LENGTH];
ALsizei max_length = 0;
ALsizei i, j, c, b;
for(c = 0;c < HRTF_AMBI_CHAN_COUNT;c++)
for(c = 0;c < AmbiCount;c++)
{
ALuint evidx, azidx;
ALuint evoffset;
ALuint azcount;
/* Calculate elevation index. */
evidx = (ALsizei)floorf((F_PI_2 + Ambi3DPoints[c].elevation) *
evidx = (ALsizei)floorf((F_PI_2 + AmbiPoints[c][0]) *
(Hrtf->evCount-1)/F_PI + 0.5f);
evidx = mini(evidx, Hrtf->evCount-1);
@@ -219,7 +165,7 @@ ALsizei BuildBFormatHrtf(const struct Hrtf *Hrtf, ALfloat (*coeffs)[HRIR_LENGTH]
evoffset = Hrtf->evOffset[evidx];
/* Calculate azimuth index for this elevation. */
azidx = (ALsizei)floorf((F_TAU+Ambi3DPoints[c].azimuth) *
azidx = (ALsizei)floorf((F_TAU+AmbiPoints[c][1]) *
azcount/F_TAU + 0.5f) % azcount;
/* Calculate indices for left and right channels. */
@@ -231,7 +177,7 @@ ALsizei BuildBFormatHrtf(const struct Hrtf *Hrtf, ALfloat (*coeffs)[HRIR_LENGTH]
memset(temps, 0, sizeof(temps));
bandsplit_init(&splitter, 400.0f / (ALfloat)Hrtf->sampleRate);
for(c = 0;c < HRTF_AMBI_CHAN_COUNT;c++)
for(c = 0;c < AmbiCount;c++)
{
const ALshort *fir;
ALsizei delay;
@@ -256,12 +202,11 @@ ALsizei BuildBFormatHrtf(const struct Hrtf *Hrtf, ALfloat (*coeffs)[HRIR_LENGTH]
delay = Hrtf->delays[lidx[c]] - min_delay;
for(i = 0;i < NumChannels;++i)
{
const ALsizei a = AmbiMap ? AmbiMap[i] : i;
for(b = 0;b < NUM_BANDS;b++)
{
ALsizei k = 0;
for(j = delay;j < HRIR_LENGTH;++j)
coeffs[i][j][0] += temps[b][k++] * Ambi3DMatrix[c][b][a];
coeffs[i][j][0] += temps[b][k++] * AmbiMatrix[c][b][i];
}
}
max_length = maxi(max_length, mini(delay + Hrtf->irSize, HRIR_LENGTH));
@@ -286,21 +231,19 @@ ALsizei BuildBFormatHrtf(const struct Hrtf *Hrtf, ALfloat (*coeffs)[HRIR_LENGTH]
delay = Hrtf->delays[ridx[c]] - min_delay;
for(i = 0;i < NumChannels;++i)
{
const ALsizei a = AmbiMap ? AmbiMap[i] : i;
for(b = 0;b < NUM_BANDS;b++)
{
ALuint k = 0;
for(j = delay;j < HRIR_LENGTH;++j)
coeffs[i][j][1] += temps[b][k++] * Ambi3DMatrix[c][b][a];
coeffs[i][j][1] += temps[b][k++] * AmbiMatrix[c][b][i];
}
}
max_length = maxi(max_length, mini(delay + Hrtf->irSize, HRIR_LENGTH));
}
TRACE("Skipped min delay: %d, new combined length: %d\n", min_delay, max_length);
#undef NUM_BANDS
return max_length;
#undef HRTF_AMBI_CHAN_COUNT
#undef NUM_BANDS
}
Alc/hrtf.h
+12 -15
View File
@@ -4,6 +4,7 @@
#include "AL/al.h"
#include "AL/alc.h"
#include "alMain.h"
#include "alstring.h"
@@ -21,20 +22,15 @@ struct Hrtf {
struct Hrtf *next;
};
typedef struct HrtfEntry {
al_string name;
const struct Hrtf *hrtf;
} HrtfEntry;
TYPEDEF_VECTOR(HrtfEntry, vector_HrtfEntry)
#define HRIR_BITS (7)
#define HRIR_LENGTH (1<<HRIR_BITS)
#define HRIR_MASK (HRIR_LENGTH-1)
#define HRTFDELAY_BITS (20)
#define HRTFDELAY_FRACONE (1<<HRTFDELAY_BITS)
#define HRTFDELAY_MASK (HRTFDELAY_FRACONE-1)
/* The maximum number of virtual speakers used to generate HRTF coefficients
* for decoding B-Format.
*/
#define HRTF_AMBI_MAX_CHANNELS 16
void FreeHrtfs(void);
vector_HrtfEntry EnumerateHrtf(const_al_string devname);
@@ -42,11 +38,12 @@ void FreeHrtfList(vector_HrtfEntry *list);
void GetHrtfCoeffs(const struct Hrtf *Hrtf, ALfloat elevation, ALfloat azimuth, ALfloat spread, ALfloat gain, ALfloat (*coeffs)[2], ALsizei *delays);
/* Produces HRTF filter coefficients for decoding B-Format. The result will
* have ACN ordering with N3D normalization. NumChannels must currently be 4,
* for first-order. Returns the maximum impulse-response length of the
* generated coefficients.
/**
* Produces HRTF filter coefficients for decoding B-Format, given a set of
* virtual speaker positions and HF/LF matrices for decoding to them. The
* returned coefficients are ordered and scaled according to the matrices.
* Returns the maximum impulse-response length of the generated coefficients.
*/
ALsizei BuildBFormatHrtf(const struct Hrtf *Hrtf, ALfloat (*coeffs)[HRIR_LENGTH][2], ALsizei NumChannels, const ALsizei *AmbiMap);
ALsizei BuildBFormatHrtf(const struct Hrtf *Hrtf, ALfloat (*coeffs)[HRIR_LENGTH][2], ALsizei NumChannels, const ALfloat (*restrict AmbiPoints)[2], const ALfloat (*restrict AmbiMatrix)[2][MAX_AMBI_COEFFS], ALsizei AmbiCount);
#endif /* ALC_HRTF_H */
Alc/panning.c
+55 -7
View File
@@ -758,18 +758,65 @@ static void InitHQPanning(ALCdevice *device, const AmbDecConf *conf, const ALuin
static void InitHrtfPanning(ALCdevice *device, bool hoa_mode)
{
static const ALsizei map_foa[] = { 0, 1, 2, 3 };
static const ALsizei map_hoa[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8 };
const ALsizei *ambi_map = hoa_mode ? map_hoa : map_foa;
size_t count = hoa_mode ? COUNTOF(map_hoa) : COUNTOF(map_foa);
/* NOTE: azimuth goes clockwise. */
static const ALfloat AmbiPoints[][2] = {
{ DEG2RAD( 90.0f), DEG2RAD( 0.0f) },
{ DEG2RAD( 35.0f), DEG2RAD( -45.0f) },
{ DEG2RAD( 35.0f), DEG2RAD( 45.0f) },
{ DEG2RAD( 35.0f), DEG2RAD( 135.0f) },
{ DEG2RAD( 35.0f), DEG2RAD(-135.0f) },
{ DEG2RAD( 0.0f), DEG2RAD( 0.0f) },
{ DEG2RAD( 0.0f), DEG2RAD( 90.0f) },
{ DEG2RAD( 0.0f), DEG2RAD( 180.0f) },
{ DEG2RAD( 0.0f), DEG2RAD( -90.0f) },
{ DEG2RAD(-35.0f), DEG2RAD( -45.0f) },
{ DEG2RAD(-35.0f), DEG2RAD( 45.0f) },
{ DEG2RAD(-35.0f), DEG2RAD( 135.0f) },
{ DEG2RAD(-35.0f), DEG2RAD(-135.0f) },
{ DEG2RAD(-90.0f), DEG2RAD( 0.0f) },
};
static const ALfloat AmbiMatrixFOA[][2][MAX_AMBI_COEFFS] = {
{ { 1.88982237e-001f, 0.00000000e+000f, 1.90399923e-001f, 0.00000000e+000f }, { 7.14285714e-002f, 0.00000000e+000f, 1.24646009e-001f, 0.00000000e+000f } },
{ { 1.88982237e-001f, 1.09057783e-001f, 1.09208910e-001f, 1.09057783e-001f }, { 7.14285714e-002f, 7.13950780e-002f, 7.14940135e-002f, 7.13950780e-002f } },
{ { 1.88982237e-001f, -1.09057783e-001f, 1.09208910e-001f, 1.09057783e-001f }, { 7.14285714e-002f, -7.13950780e-002f, 7.14940135e-002f, 7.13950780e-002f } },
{ { 1.88982237e-001f, -1.09057783e-001f, 1.09208910e-001f, -1.09057783e-001f }, { 7.14285714e-002f, -7.13950780e-002f, 7.14940135e-002f, -7.13950780e-002f } },
{ { 1.88982237e-001f, 1.09057783e-001f, 1.09208910e-001f, -1.09057783e-001f }, { 7.14285714e-002f, 7.13950780e-002f, 7.14940135e-002f, -7.13950780e-002f } },
{ { 1.88982237e-001f, 0.00000000e+000f, 0.00000000e+000f, 1.88281281e-001f }, { 7.14285714e-002f, 0.00000000e+000f, 0.00000000e+000f, 1.23259031e-001f } },
{ { 1.88982237e-001f, -1.88281281e-001f, 0.00000000e+000f, 0.00000000e+000f }, { 7.14285714e-002f, -1.23259031e-001f, 0.00000000e+000f, 0.00000000e+000f } },
{ { 1.88982237e-001f, 0.00000000e+000f, 0.00000000e+000f, -1.88281281e-001f }, { 7.14285714e-002f, 0.00000000e+000f, 0.00000000e+000f, -1.23259031e-001f } },
{ { 1.88982237e-001f, 1.88281281e-001f, 0.00000000e+000f, 0.00000000e+000f }, { 7.14285714e-002f, 1.23259031e-001f, 0.00000000e+000f, 0.00000000e+000f } },
{ { 1.88982237e-001f, 1.09057783e-001f, -1.09208910e-001f, 1.09057783e-001f }, { 7.14285714e-002f, 7.13950780e-002f, -7.14940135e-002f, 7.13950780e-002f } },
{ { 1.88982237e-001f, -1.09057783e-001f, -1.09208910e-001f, 1.09057783e-001f }, { 7.14285714e-002f, -7.13950780e-002f, -7.14940135e-002f, 7.13950780e-002f } },
{ { 1.88982237e-001f, -1.09057783e-001f, -1.09208910e-001f, -1.09057783e-001f }, { 7.14285714e-002f, -7.13950780e-002f, -7.14940135e-002f, -7.13950780e-002f } },
{ { 1.88982237e-001f, 1.09057783e-001f, -1.09208910e-001f, -1.09057783e-001f }, { 7.14285714e-002f, 7.13950780e-002f, -7.14940135e-002f, -7.13950780e-002f } },
{ { 1.88982237e-001f, 0.00000000e+000f, -1.90399923e-001f, 0.00000000e+000f }, { 7.14285714e-002f, 0.00000000e+000f, -1.24646009e-001f, 0.00000000e+000f } }
}, AmbiMatrixHOA[][2][MAX_AMBI_COEFFS] = {
{ { 1.43315266e-001f, 0.00000000e+000f, 1.90399923e-001f, 0.00000000e+000f, 0.00000000e+000f, 0.00000000e+000f, 1.18020996e-001f, 0.00000000e+000f, 0.00000000e+000f }, { 7.26741039e-002f, 0.00000000e+000f, 1.24646009e-001f, 0.00000000e+000f, 0.00000000e+000f, 0.00000000e+000f, 1.49618920e-001f, 0.00000000e+000f, 0.00000000e+000f } },
{ { 1.40852210e-001f, 1.09057783e-001f, 1.09208910e-001f, 1.09057783e-001f, 7.58818830e-002f, 7.66295578e-002f, -3.28314629e-004f, 7.66295578e-002f, 0.00000000e+000f }, { 7.14251066e-002f, 7.13950780e-002f, 7.14940135e-002f, 7.13950780e-002f, 9.61978444e-002f, 9.71456952e-002f, -4.16214759e-004f, 9.71456952e-002f, 0.00000000e+000f } },
{ { 1.40852210e-001f, -1.09057783e-001f, 1.09208910e-001f, 1.09057783e-001f, -7.58818830e-002f, -7.66295578e-002f, -3.28314629e-004f, 7.66295578e-002f, 0.00000000e+000f }, { 7.14251066e-002f, -7.13950780e-002f, 7.14940135e-002f, 7.13950780e-002f, -9.61978444e-002f, -9.71456952e-002f, -4.16214759e-004f, 9.71456952e-002f, 0.00000000e+000f } },
{ { 1.40852210e-001f, -1.09057783e-001f, 1.09208910e-001f, -1.09057783e-001f, 7.58818830e-002f, -7.66295578e-002f, -3.28314629e-004f, -7.66295578e-002f, 0.00000000e+000f }, { 7.14251066e-002f, -7.13950780e-002f, 7.14940135e-002f, -7.13950780e-002f, 9.61978444e-002f, -9.71456952e-002f, -4.16214759e-004f, -9.71456952e-002f, 0.00000000e+000f } },
{ { 1.40852210e-001f, 1.09057783e-001f, 1.09208910e-001f, -1.09057783e-001f, -7.58818830e-002f, 7.66295578e-002f, -3.28314629e-004f, -7.66295578e-002f, 0.00000000e+000f }, { 7.14251066e-002f, 7.13950780e-002f, 7.14940135e-002f, -7.13950780e-002f, -9.61978444e-002f, 9.71456952e-002f, -4.16214759e-004f, -9.71456952e-002f, 0.00000000e+000f } },
{ { 1.39644596e-001f, 0.00000000e+000f, 0.00000000e+000f, 1.88281281e-001f, 0.00000000e+000f, 0.00000000e+000f, -5.83538687e-002f, 0.00000000e+000f, 1.01835015e-001f }, { 7.08127349e-002f, 0.00000000e+000f, 0.00000000e+000f, 1.23259031e-001f, 0.00000000e+000f, 0.00000000e+000f, -7.39770307e-002f, 0.00000000e+000f, 1.29099445e-001f } },
{ { 1.39644596e-001f, -1.88281281e-001f, 0.00000000e+000f, 0.00000000e+000f, 0.00000000e+000f, 0.00000000e+000f, -5.83538687e-002f, 0.00000000e+000f, -1.01835015e-001f }, { 7.08127349e-002f, -1.23259031e-001f, 0.00000000e+000f, 0.00000000e+000f, 0.00000000e+000f, 0.00000000e+000f, -7.39770307e-002f, 0.00000000e+000f, -1.29099445e-001f } },
{ { 1.39644596e-001f, 0.00000000e+000f, 0.00000000e+000f, -1.88281281e-001f, 0.00000000e+000f, 0.00000000e+000f, -5.83538687e-002f, 0.00000000e+000f, 1.01835015e-001f }, { 7.08127349e-002f, 0.00000000e+000f, 0.00000000e+000f, -1.23259031e-001f, 0.00000000e+000f, 0.00000000e+000f, -7.39770307e-002f, 0.00000000e+000f, 1.29099445e-001f } },
{ { 1.39644596e-001f, 1.88281281e-001f, 0.00000000e+000f, 0.00000000e+000f, 0.00000000e+000f, 0.00000000e+000f, -5.83538687e-002f, 0.00000000e+000f, -1.01835015e-001f }, { 7.08127349e-002f, 1.23259031e-001f, 0.00000000e+000f, 0.00000000e+000f, 0.00000000e+000f, 0.00000000e+000f, -7.39770307e-002f, 0.00000000e+000f, -1.29099445e-001f } },
{ { 1.40852210e-001f, 1.09057783e-001f, -1.09208910e-001f, 1.09057783e-001f, 7.58818830e-002f, -7.66295578e-002f, -3.28314629e-004f, -7.66295578e-002f, 0.00000000e+000f }, { 7.14251066e-002f, 7.13950780e-002f, -7.14940135e-002f, 7.13950780e-002f, 9.61978444e-002f, -9.71456952e-002f, -4.16214759e-004f, -9.71456952e-002f, 0.00000000e+000f } },
{ { 1.40852210e-001f, -1.09057783e-001f, -1.09208910e-001f, 1.09057783e-001f, -7.58818830e-002f, 7.66295578e-002f, -3.28314629e-004f, -7.66295578e-002f, 0.00000000e+000f }, { 7.14251066e-002f, -7.13950780e-002f, -7.14940135e-002f, 7.13950780e-002f, -9.61978444e-002f, 9.71456952e-002f, -4.16214759e-004f, -9.71456952e-002f, 0.00000000e+000f } },
{ { 1.40852210e-001f, -1.09057783e-001f, -1.09208910e-001f, -1.09057783e-001f, 7.58818830e-002f, 7.66295578e-002f, -3.28314629e-004f, 7.66295578e-002f, 0.00000000e+000f }, { 7.14251066e-002f, -7.13950780e-002f, -7.14940135e-002f, -7.13950780e-002f, 9.61978444e-002f, 9.71456952e-002f, -4.16214759e-004f, 9.71456952e-002f, 0.00000000e+000f } },
{ { 1.40852210e-001f, 1.09057783e-001f, -1.09208910e-001f, -1.09057783e-001f, -7.58818830e-002f, -7.66295578e-002f, -3.28314629e-004f, 7.66295578e-002f, 0.00000000e+000f }, { 7.14251066e-002f, 7.13950780e-002f, -7.14940135e-002f, -7.13950780e-002f, -9.61978444e-002f, -9.71456952e-002f, -4.16214759e-004f, 9.71456952e-002f, 0.00000000e+000f } },
{ { 1.43315266e-001f, 0.00000000e+000f, -1.90399923e-001f, 0.00000000e+000f, 0.00000000e+000f, 0.00000000e+000f, 1.18020996e-001f, 0.00000000e+000f, 0.00000000e+000f }, { 7.26741039e-002f, 0.00000000e+000f, -1.24646009e-001f, 0.00000000e+000f, 0.00000000e+000f, 0.00000000e+000f, 1.49618920e-001f, 0.00000000e+000f, 0.00000000e+000f } },
};
const ALfloat (*AmbiMatrix)[2][MAX_AMBI_COEFFS] = hoa_mode ? AmbiMatrixHOA : AmbiMatrixFOA;
size_t count = hoa_mode ? 9 : 4;
size_t i;
static_assert(COUNTOF(map_hoa) <= COUNTOF(device->Hrtf.Coeffs), "ALCdevice::Hrtf.Values/Coeffs size is too small");
static_assert(9 <= COUNTOF(device->Hrtf.Coeffs), "ALCdevice::Hrtf.Values/Coeffs size is too small");
static_assert(COUNTOF(AmbiPoints) <= HRTF_AMBI_MAX_CHANNELS, "HRTF_AMBI_MAX_CHANNELS is too small");
for(i = 0;i < count;i++)
{
device->Dry.Ambi.Map[i].Scale = 1.0f;
device->Dry.Ambi.Map[i].Index = ambi_map[i];
device->Dry.Ambi.Map[i].Index = i;
}
device->Dry.CoeffCount = 0;
device->Dry.NumChannels = count;
@@ -794,7 +841,8 @@ static void InitHrtfPanning(ALCdevice *device, bool hoa_mode)
memset(device->Hrtf.Coeffs, 0, sizeof(device->Hrtf.Coeffs));
device->Hrtf.IrSize = BuildBFormatHrtf(device->Hrtf.Handle,
device->Hrtf.Coeffs, device->Dry.NumChannels, hoa_mode ? ambi_map : NULL
device->Hrtf.Coeffs, device->Dry.NumChannels,
AmbiPoints, AmbiMatrix, COUNTOF(AmbiPoints)
);
/* Round up to the nearest multiple of 8 */
OpenAL32/Include/alMain.h
+20 -12
View File
@@ -20,16 +20,6 @@
#include "AL/alc.h"
#include "AL/alext.h"
#if defined(_WIN64)
#define SZFMT "%I64u"
#elif defined(_WIN32)
#define SZFMT "%u"
#else
#define SZFMT "%zu"
#endif
#include "static_assert.h"
#include "align.h"
#include "atomic.h"
@@ -39,8 +29,6 @@
#include "almalloc.h"
#include "threads.h"
#include "hrtf.h"
#ifndef ALC_SOFT_device_clock
#define ALC_SOFT_device_clock 1
typedef int64_t ALCint64SOFT;
@@ -128,6 +116,15 @@ AL_API ALboolean AL_APIENTRY alIsBufferFormatSupportedSOFT(ALenum format);
#endif
#if defined(_WIN64)
#define SZFMT "%I64u"
#elif defined(_WIN32)
#define SZFMT "%u"
#else
#define SZFMT "%zu"
#endif
#ifdef __GNUC__
/* Because of a long-standing deficiency in C, you're not allowed to implicitly
* cast a pointer-to-type-array to a pointer-to-const-type-array. For example,
@@ -577,6 +574,10 @@ typedef union AmbiConfig {
#define HRTF_HISTORY_LENGTH (1<<HRTF_HISTORY_BITS)
#define HRTF_HISTORY_MASK (HRTF_HISTORY_LENGTH-1)
#define HRIR_BITS (7)
#define HRIR_LENGTH (1<<HRIR_BITS)
#define HRIR_MASK (HRIR_LENGTH-1)
typedef struct HrtfState {
alignas(16) ALfloat History[HRTF_HISTORY_LENGTH];
alignas(16) ALfloat Values[HRIR_LENGTH][2];
@@ -587,6 +588,13 @@ typedef struct HrtfParams {
ALsizei Delay[2];
} HrtfParams;
typedef struct HrtfEntry {
al_string name;
const struct Hrtf *hrtf;
} HrtfEntry;
TYPEDEF_VECTOR(HrtfEntry, vector_HrtfEntry)
/* Size for temporary storage of buffer data, in ALfloats. Larger values need
* more memory, while smaller values may need more iterations. The value needs