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-rw-r--r--Alc/ALu.c244
1 files changed, 36 insertions, 208 deletions
diff --git a/Alc/ALu.c b/Alc/ALu.c
index 7d1805fc..a4304448 100644
--- a/Alc/ALu.c
+++ b/Alc/ALu.c
@@ -78,6 +78,7 @@ static __inline ALvoid aluMatrixVector(ALfloat *vector,ALfloat w,ALfloat matrix[
ALvoid CalcNonAttnSourceParams(ALsource *ALSource, const ALCcontext *ALContext)
{
+ static const ALfloat angles_Mono[1] = { 0.0f };
static const ALfloat angles_Stereo[2] = { -30.0f, 30.0f };
static const ALfloat angles_Rear[2] = { -150.0f, 150.0f };
static const ALfloat angles_Quad[4] = { -45.0f, 45.0f, -135.0f, 135.0f };
@@ -99,6 +100,9 @@ ALvoid CalcNonAttnSourceParams(ALsource *ALSource, const ALCcontext *ALContext)
ALfloat WetGainHF[MAX_SENDS];
ALint NumSends, Frequency;
const ALfloat *SpeakerGain;
+ const ALfloat *angles = NULL;
+ ALint num_channels = 0;
+ ALint lfe_chan = -1;
ALfloat Pitch;
ALfloat cw;
ALuint pos;
@@ -171,49 +175,11 @@ ALvoid CalcNonAttnSourceParams(ALsource *ALSource, const ALCcontext *ALContext)
switch(Channels)
{
case FmtMono:
- if((ALContext->Device->Flags&DEVICE_USE_HRTF))
- {
- const ALshort *hrtf_left, *hrtf_right;
-
- GetHrtfCoeffs(0.0, 0.0, &hrtf_left, &hrtf_right);
- for(i = 0;i < HRTF_LENGTH;i++)
- {
- ALSource->Params.HrtfCoeffs[0][i][0] =
- hrtf_left[i]*(1.0/32767.0)*DryGain*ListenerGain;
- ALSource->Params.HrtfCoeffs[0][i][1] =
- hrtf_right[i]*(1.0/32767.0)*DryGain*ListenerGain;
- }
- }
- else
- {
- pos = aluCart2LUTpos(cos(0.0), sin(0.0));
- SpeakerGain = &Device->PanningLUT[MAXCHANNELS * pos];
-
- for(i = 0;i < (ALint)Device->NumChan;i++)
- {
- Channel chan = Device->Speaker2Chan[i];
- SrcMatrix[0][chan] = DryGain * ListenerGain * SpeakerGain[chan];
- }
- }
+ angles = angles_Mono;
+ num_channels = 1;
break;
case FmtStereo:
- if((ALContext->Device->Flags&DEVICE_USE_HRTF))
- {
- for(c = 0;c < 2;c++)
- {
- const ALshort *hrtf_left, *hrtf_right;
-
- GetHrtfCoeffs(0.0, angles_Stereo[c], &hrtf_left, &hrtf_right);
- for(i = 0;i < HRTF_LENGTH;i++)
- {
- ALSource->Params.HrtfCoeffs[c][i][0] =
- hrtf_left[i]*(1.0/32767.0)*DryGain*ListenerGain;
- ALSource->Params.HrtfCoeffs[c][i][1] =
- hrtf_right[i]*(1.0/32767.0)*DryGain*ListenerGain;
- }
- }
- }
- else if((ALContext->Device->Flags&DEVICE_DUPLICATE_STEREO))
+ if((ALContext->Device->Flags&DEVICE_DUPLICATE_STEREO))
{
static const ALfloat angles_StereoDup[4] = { -30.0f, -150.0f,
30.0f, 150.0f };
@@ -234,189 +200,52 @@ ALvoid CalcNonAttnSourceParams(ALsource *ALSource, const ALCcontext *ALContext)
}
else
{
- for(c = 0;c < 2;c++)
- {
- pos = aluCart2LUTpos(cos(angles_Stereo[c] * (M_PI/180.0)),
- sin(angles_Stereo[c] * (M_PI/180.0)));
- SpeakerGain = &Device->PanningLUT[MAXCHANNELS * pos];
-
- for(i = 0;i < (ALint)Device->NumChan;i++)
- {
- Channel chan = Device->Speaker2Chan[i];
- SrcMatrix[c][chan] = DryGain * ListenerGain *
- SpeakerGain[chan];
- }
- }
+ angles = angles_Stereo;
+ num_channels = 2;
}
break;
case FmtRear:
- if((ALContext->Device->Flags&DEVICE_USE_HRTF))
- {
- for(c = 0;c < 2;c++)
- {
- const ALshort *hrtf_left, *hrtf_right;
-
- GetHrtfCoeffs(0.0, angles_Rear[c], &hrtf_left, &hrtf_right);
- for(i = 0;i < HRTF_LENGTH;i++)
- {
- ALSource->Params.HrtfCoeffs[c][i][0] =
- hrtf_left[i]*(1.0/32767.0)*DryGain*ListenerGain;
- ALSource->Params.HrtfCoeffs[c][i][1] =
- hrtf_right[i]*(1.0/32767.0)*DryGain*ListenerGain;
- }
- }
- }
- else
- {
- for(c = 0;c < 2;c++)
- {
- pos = aluCart2LUTpos(cos(angles_Rear[c] * (M_PI/180.0)),
- sin(angles_Rear[c] * (M_PI/180.0)));
- SpeakerGain = &Device->PanningLUT[MAXCHANNELS * pos];
-
- for(i = 0;i < (ALint)Device->NumChan;i++)
- {
- Channel chan = Device->Speaker2Chan[i];
- SrcMatrix[c][chan] = DryGain * ListenerGain *
- SpeakerGain[chan];
- }
- }
- }
+ angles = angles_Rear;
+ num_channels = 2;
break;
case FmtQuad:
- if((ALContext->Device->Flags&DEVICE_USE_HRTF))
- {
- for(c = 0;c < 4;c++)
- {
- const ALshort *hrtf_left, *hrtf_right;
-
- GetHrtfCoeffs(0.0, angles_Quad[c], &hrtf_left, &hrtf_right);
- for(i = 0;i < HRTF_LENGTH;i++)
- {
- ALSource->Params.HrtfCoeffs[c][i][0] =
- hrtf_left[i]*(1.0/32767.0)*DryGain*ListenerGain;
- ALSource->Params.HrtfCoeffs[c][i][1] =
- hrtf_right[i]*(1.0/32767.0)*DryGain*ListenerGain;
- }
- }
- }
- else
- {
- for(c = 0;c < 4;c++)
- {
- pos = aluCart2LUTpos(cos(angles_Quad[c] * (M_PI/180.0)),
- sin(angles_Quad[c] * (M_PI/180.0)));
- SpeakerGain = &Device->PanningLUT[MAXCHANNELS * pos];
-
- for(i = 0;i < (ALint)Device->NumChan;i++)
- {
- Channel chan = Device->Speaker2Chan[i];
- SrcMatrix[c][chan] = DryGain * ListenerGain *
- SpeakerGain[chan];
- }
- }
- }
+ angles = angles_Quad;
+ num_channels = 4;
break;
case FmtX51:
- if((ALContext->Device->Flags&DEVICE_USE_HRTF))
- {
- for(c = 0;c < 6;c++)
- {
- const ALshort *hrtf_left, *hrtf_right;
-
- if(c == 3) /* Skip LFE */
- continue;
-
- GetHrtfCoeffs(0.0, angles_X51[c], &hrtf_left, &hrtf_right);
- for(i = 0;i < HRTF_LENGTH;i++)
- {
- ALSource->Params.HrtfCoeffs[c][i][0] =
- hrtf_left[i]*(1.0/32767.0)*DryGain*ListenerGain;
- ALSource->Params.HrtfCoeffs[c][i][1] =
- hrtf_right[i]*(1.0/32767.0)*DryGain*ListenerGain;
- }
- }
- }
- else
- {
- for(c = 0;c < 6;c++)
- {
- if(c == 3) /* Special-case LFE */
- {
- SrcMatrix[3][LFE] = DryGain * ListenerGain;
- continue;
- }
- pos = aluCart2LUTpos(cos(angles_X51[c] * (M_PI/180.0)),
- sin(angles_X51[c] * (M_PI/180.0)));
- SpeakerGain = &Device->PanningLUT[MAXCHANNELS * pos];
-
- for(i = 0;i < (ALint)Device->NumChan;i++)
- {
- Channel chan = Device->Speaker2Chan[i];
- SrcMatrix[c][chan] = DryGain * ListenerGain *
- SpeakerGain[chan];
- }
- }
- }
+ angles = angles_X51;
+ num_channels = 6;
+ lfe_chan = 3;
break;
case FmtX61:
- if((ALContext->Device->Flags&DEVICE_USE_HRTF))
- {
- for(c = 0;c < 7;c++)
- {
- const ALshort *hrtf_left, *hrtf_right;
-
- if(c == 3) /* Skip LFE */
- continue;
-
- GetHrtfCoeffs(0.0, angles_X61[c], &hrtf_left, &hrtf_right);
- for(i = 0;i < HRTF_LENGTH;i++)
- {
- ALSource->Params.HrtfCoeffs[c][i][0] =
- hrtf_left[i]*(1.0/32767.0)*DryGain*ListenerGain;
- ALSource->Params.HrtfCoeffs[c][i][1] =
- hrtf_right[i]*(1.0/32767.0)*DryGain*ListenerGain;
- }
- }
- }
- else
- {
- for(c = 0;c < 7;c++)
- {
- if(c == 3) /* Special-case LFE */
- {
- SrcMatrix[3][LFE] = DryGain * ListenerGain;
- continue;
- }
- pos = aluCart2LUTpos(cos(angles_X61[c] * (M_PI/180.0)),
- sin(angles_X61[c] * (M_PI/180.0)));
- SpeakerGain = &Device->PanningLUT[MAXCHANNELS * pos];
-
- for(i = 0;i < (ALint)Device->NumChan;i++)
- {
- Channel chan = Device->Speaker2Chan[i];
- SrcMatrix[c][chan] = DryGain * ListenerGain *
- SpeakerGain[chan];
- }
- }
- }
+ angles = angles_X61;
+ num_channels = 7;
+ lfe_chan = 3;
break;
case FmtX71:
- if((ALContext->Device->Flags&DEVICE_USE_HRTF))
+ angles = angles_X71;
+ num_channels = 8;
+ lfe_chan = 3;
+ break;
+ }
+
+ if(angles)
+ {
+ if((Device->Flags&DEVICE_USE_HRTF))
{
- for(c = 0;c < 8;c++)
+ for(c = 0;c < num_channels;c++)
{
const ALshort *hrtf_left, *hrtf_right;
- if(c == 3) /* Skip LFE */
+ if(c == lfe_chan) /* Skip LFE */
continue;
- GetHrtfCoeffs(0.0, angles_X71[c], &hrtf_left, &hrtf_right);
+ GetHrtfCoeffs(0.0, angles[c], &hrtf_left, &hrtf_right);
for(i = 0;i < HRTF_LENGTH;i++)
{
ALSource->Params.HrtfCoeffs[c][i][0] =
@@ -428,15 +257,15 @@ ALvoid CalcNonAttnSourceParams(ALsource *ALSource, const ALCcontext *ALContext)
}
else
{
- for(c = 0;c < 8;c++)
+ for(c = 0;c < num_channels;c++)
{
- if(c == 3) /* Special-case LFE */
+ if(c == lfe_chan) /* Special-case LFE */
{
- SrcMatrix[3][LFE] = DryGain * ListenerGain;
+ SrcMatrix[c][LFE] = DryGain * ListenerGain;
continue;
}
- pos = aluCart2LUTpos(cos(angles_X71[c] * (M_PI/180.0)),
- sin(angles_X71[c] * (M_PI/180.0)));
+ pos = aluCart2LUTpos(cos(angles[c] * (M_PI/180.0)),
+ sin(angles[c] * (M_PI/180.0)));
SpeakerGain = &Device->PanningLUT[MAXCHANNELS * pos];
for(i = 0;i < (ALint)Device->NumChan;i++)
@@ -447,7 +276,6 @@ ALvoid CalcNonAttnSourceParams(ALsource *ALSource, const ALCcontext *ALContext)
}
}
}
- break;
}
for(i = 0;i < NumSends;i++)
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-02 05:12:44 +0000