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Use separate lines for HRTF history and values

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This commit is contained in:
Chris Robinson 2011-06-17 16:22:39 -07:00
parent 753e64c76c
commit edf78b077e
5 changed files with 35 additions and 35 deletions
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2
Alc/hrtf.c
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@ -82,7 +82,7 @@ void InitHrtf(void)
}
if(f != NULL)
{
const ALubyte maxDelay = SRC_HISTORY_LENGTH - HRIR_LENGTH;
const ALubyte maxDelay = SRC_HISTORY_LENGTH;
ALboolean failed = AL_FALSE;
struct HRTF newdata;
size_t i, j;

55
Alc/mixer.c
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@ -98,10 +98,10 @@ static void Mix_Hrtf_##T##_##sampler(ALsource *Source, ALCdevice *Device, \
\
for(i = 0;i < NumChannels;i++) \
{ \
static const ALuint MaxDelay = SRC_HISTORY_LENGTH - HRIR_LENGTH; \
ALfloat (*RESTRICT Coeffs)[2] = Source->Params.HrtfCoeffs[i]; \
const ALuint *RESTRICT Delay = Source->Params.HrtfDelay[i]; \
ALfloat (*RESTRICT History)[2] = Source->HrtfHistory[i]; \
ALfloat *RESTRICT History = Source->HrtfHistory[i]; \
ALfloat (*RESTRICT Values)[2] = Source->HrtfValues[i]; \
ALuint Offset = Source->HrtfOffset + OutPos; \
\
pos = 0; \
@ -112,18 +112,17 @@ static void Mix_Hrtf_##T##_##sampler(ALsource *Source, ALCdevice *Device, \
value = sampler(data + pos*NumChannels + i, NumChannels, frac); \
value = lpFilter2PC(DryFilter, i, value); \
\
History[Offset&SRC_HISTORY_MASK][0] = value; \
History[Offset&SRC_HISTORY_MASK][1] = value; \
History[Offset&SRC_HISTORY_MASK] = value; \
\
History[(Offset-MaxDelay)&SRC_HISTORY_MASK][0] = \
History[(Offset-Delay[0])&SRC_HISTORY_MASK][0];\
History[(Offset-MaxDelay)&SRC_HISTORY_MASK][1] = \
History[(Offset-Delay[1])&SRC_HISTORY_MASK][1];\
Values[Offset&HRIR_MASK][0] = \
History[(Offset-Delay[0])&SRC_HISTORY_MASK];\
Values[Offset&HRIR_MASK][1] = \
History[(Offset-Delay[1])&SRC_HISTORY_MASK];\
for(c = 0;c < HRIR_LENGTH;c++) \
{ \
const ALuint off = (Offset-MaxDelay-c)&SRC_HISTORY_MASK; \
ClickRemoval[FRONT_LEFT] -= History[off][0] * Coeffs[c][0]; \
ClickRemoval[FRONT_RIGHT] -= History[off][1] * Coeffs[c][1]; \
const ALuint off = (Offset-c)&HRIR_MASK; \
ClickRemoval[FRONT_LEFT] -= Values[off][0] * Coeffs[c][0]; \
ClickRemoval[FRONT_RIGHT] -= Values[off][1] * Coeffs[c][1]; \
} \
} \
for(BufferIdx = 0;BufferIdx < BufferSize;BufferIdx++) \
@ -131,18 +130,17 @@ static void Mix_Hrtf_##T##_##sampler(ALsource *Source, ALCdevice *Device, \
value = sampler(data + pos*NumChannels + i, NumChannels, frac); \
value = lpFilter2P(DryFilter, i, value); \
\
History[Offset&SRC_HISTORY_MASK][0] = value; \
History[Offset&SRC_HISTORY_MASK][1] = value; \
History[Offset&SRC_HISTORY_MASK] = value; \
\
History[(Offset-MaxDelay)&SRC_HISTORY_MASK][0] = \
History[(Offset-Delay[0])&SRC_HISTORY_MASK][0];\
History[(Offset-MaxDelay)&SRC_HISTORY_MASK][1] = \
History[(Offset-Delay[1])&SRC_HISTORY_MASK][1];\
Values[Offset&HRIR_MASK][0] = \
History[(Offset-Delay[0])&SRC_HISTORY_MASK];\
Values[Offset&HRIR_MASK][1] = \
History[(Offset-Delay[1])&SRC_HISTORY_MASK];\
for(c = 0;c < HRIR_LENGTH;c++) \
{ \
const ALuint off = (Offset-MaxDelay-c)&SRC_HISTORY_MASK; \
DryBuffer[OutPos][FRONT_LEFT] += History[off][0] * Coeffs[c][0];\
DryBuffer[OutPos][FRONT_RIGHT] += History[off][1] * Coeffs[c][1];\
const ALuint off = (Offset-c)&HRIR_MASK; \
DryBuffer[OutPos][FRONT_LEFT] += Values[off][0] * Coeffs[c][0];\
DryBuffer[OutPos][FRONT_RIGHT] += Values[off][1] * Coeffs[c][1];\
} \
Offset++; \
\
@ -156,18 +154,17 @@ static void Mix_Hrtf_##T##_##sampler(ALsource *Source, ALCdevice *Device, \
value = sampler(data + pos*NumChannels + i, NumChannels, frac); \
value = lpFilter2PC(DryFilter, i, value); \
\
History[Offset&SRC_HISTORY_MASK][0] = value; \
History[Offset&SRC_HISTORY_MASK][1] = value; \
History[Offset&SRC_HISTORY_MASK] = value; \
\
History[(Offset-MaxDelay)&SRC_HISTORY_MASK][0] = \
History[(Offset-Delay[0])&SRC_HISTORY_MASK][0];\
History[(Offset-MaxDelay)&SRC_HISTORY_MASK][1] = \
History[(Offset-Delay[1])&SRC_HISTORY_MASK][1];\
Values[Offset&HRIR_MASK][0] = \
History[(Offset-Delay[0])&SRC_HISTORY_MASK];\
Values[Offset&HRIR_MASK][1] = \
History[(Offset-Delay[1])&SRC_HISTORY_MASK];\
for(c = 0;c < HRIR_LENGTH;c++) \
{ \
const ALuint off = (Offset-MaxDelay-c)&SRC_HISTORY_MASK; \
PendingClicks[FRONT_LEFT] += History[off][0] * Coeffs[c][0]; \
PendingClicks[FRONT_RIGHT] += History[off][1] * Coeffs[c][1]; \
const ALuint off = (Offset-c)&HRIR_MASK; \
PendingClicks[FRONT_LEFT] += Values[off][0] * Coeffs[c][0]; \
PendingClicks[FRONT_RIGHT] += Values[off][1] * Coeffs[c][1]; \
} \
} \
OutPos -= BufferSize; \

2
OpenAL32/Include/alMain.h
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@ -497,7 +497,7 @@ ALboolean IsValidChannels(ALenum type);
#define HRIR_BITS (5)
#define HRIR_LENGTH (1<<HRIR_BITS)
#define HRIR_LENGTH_MASK (HRIR_LENGTH-1)
#define HRIR_MASK (HRIR_LENGTH-1)
void InitHrtf(void);
void GetHrtfCoeffs(ALfloat elevation, ALfloat angle, const ALshort **left, const ALshort **right, ALuint *ldelay, ALuint *rdelay);

5
OpenAL32/Include/alSource.h
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@ -11,7 +11,7 @@
extern "C" {
#endif
#define SRC_HISTORY_BITS (7)
#define SRC_HISTORY_BITS (6)
#define SRC_HISTORY_LENGTH (1<<SRC_HISTORY_BITS)
#define SRC_HISTORY_MASK (SRC_HISTORY_LENGTH-1)
@ -94,7 +94,8 @@ typedef struct ALsource
ALuint SampleSize;
/* HRTF info */
ALfloat HrtfHistory[MAXCHANNELS][SRC_HISTORY_LENGTH][2];
ALfloat HrtfHistory[MAXCHANNELS][SRC_HISTORY_LENGTH];
ALfloat HrtfValues[MAXCHANNELS][HRIR_LENGTH][2];
ALuint HrtfOffset;
/* Current target parameters used for mixing */

6
OpenAL32/alSource.c
View File

@ -1382,9 +1382,11 @@ AL_API ALvoid AL_APIENTRY alSourcePlayv(ALsizei n, const ALuint *sources)
{
ALuint k;
for(k = 0;k < SRC_HISTORY_LENGTH;k++)
Source->HrtfHistory[j][k] = 0.0f;
for(k = 0;k < HRIR_LENGTH;k++)
{
Source->HrtfHistory[j][k][0] = 0.0f;
Source->HrtfHistory[j][k][1] = 0.0f;
Source->HrtfValues[j][k][0] = 0.0f;
Source->HrtfValues[j][k][1] = 0.0f;
}
}
Source->HrtfOffset = 0;