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Use a multiplier instead of if checks

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This commit is contained in:
Chris Robinson
2010-08-15 15:09:38 -07:00
parent 00525274a0
commit 343a8241ab
1 changed files with 20 additions and 28 deletions
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Alc/mixer.c
+20 -28
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@@ -239,7 +239,7 @@ static void MixSource(ALsource *ALSource, ALCcontext *ALContext,
#define DO_MIX(resampler) do { \
if(j == 0 && UpdateClick) \
{ \
const ALboolean FirstStart = ALSource->FirstStart; \
const ALfloat Starter = (ALSource->FirstStart ? 1.0f : 0.0f); \
\
value = (resampler)(Data[DataPosInt], Data[DataPosInt+1], \
DataPosFrac); \
@@ -252,24 +252,21 @@ static void MixSource(ALsource *ALSource, ALCcontext *ALContext,
ClickRemoval[BACK_RIGHT] += outsamp*dryGainDiff[BACK_RIGHT]; \
ClickRemoval[FRONT_CENTER] += outsamp*dryGainDiff[FRONT_CENTER]; \
ClickRemoval[BACK_CENTER] += outsamp*dryGainDiff[BACK_CENTER]; \
if(FirstStart) \
{ \
ClickRemoval[FRONT_LEFT] += -outsamp*DrySend[FRONT_LEFT]; \
ClickRemoval[FRONT_RIGHT] += -outsamp*DrySend[FRONT_RIGHT]; \
ClickRemoval[SIDE_LEFT] += -outsamp*DrySend[SIDE_LEFT]; \
ClickRemoval[SIDE_RIGHT] += -outsamp*DrySend[SIDE_RIGHT]; \
ClickRemoval[BACK_LEFT] += -outsamp*DrySend[BACK_LEFT]; \
ClickRemoval[BACK_RIGHT] += -outsamp*DrySend[BACK_RIGHT]; \
ClickRemoval[FRONT_CENTER] += -outsamp*DrySend[FRONT_CENTER]; \
ClickRemoval[BACK_CENTER] += -outsamp*DrySend[BACK_CENTER]; \
} \
\
ClickRemoval[FRONT_LEFT] -= outsamp*Starter*DrySend[FRONT_LEFT]; \
ClickRemoval[FRONT_RIGHT] -= outsamp*Starter*DrySend[FRONT_RIGHT]; \
ClickRemoval[SIDE_LEFT] -= outsamp*Starter*DrySend[SIDE_LEFT]; \
ClickRemoval[SIDE_RIGHT] -= outsamp*Starter*DrySend[SIDE_RIGHT]; \
ClickRemoval[BACK_LEFT] -= outsamp*Starter*DrySend[BACK_LEFT]; \
ClickRemoval[BACK_RIGHT] -= outsamp*Starter*DrySend[BACK_RIGHT]; \
ClickRemoval[FRONT_CENTER] -= outsamp*Starter*DrySend[FRONT_CENTER]; \
ClickRemoval[BACK_CENTER] -= outsamp*Starter*DrySend[BACK_CENTER]; \
\
for(out = 0;out < MAX_SENDS;out++) \
{ \
outsamp = lpFilter2PC(WetFilter[out], 0, value); \
WetClickRemoval[out][0] += outsamp*wetGainDiff[BACK_CENTER]; \
if(FirstStart) \
WetClickRemoval[out][0] += -outsamp*WetSend[out]; \
WetClickRemoval[out][0] -= outsamp*Starter*WetSend[out]; \
} \
} \
while(BufferSize--) \
@@ -330,7 +327,7 @@ static void MixSource(ALsource *ALSource, ALCcontext *ALContext,
const ALfloat scaler = 1.0f/Channels; \
if(j == 0 && UpdateClick) \
{ \
const ALboolean FirstStart = ALSource->FirstStart; \
const ALfloat Starter = (ALSource->FirstStart ? 1.0f : 0.0f); \
for(i = 0;i < Channels;i++) \
{ \
value = (resampler)(Data[DataPosInt*Channels + i], \
@@ -341,19 +338,16 @@ static void MixSource(ALsource *ALSource, ALCcontext *ALContext,
ClickRemoval[chans[i]] += outsamp*dryGainDiff[chans[i]]; \
ClickRemoval[chans2[i*2+0]] += outsamp*dryGainDiff[chans2[i*2+0]];\
ClickRemoval[chans2[i*2+1]] += outsamp*dryGainDiff[chans2[i*2+1]];\
if(FirstStart) \
{ \
ClickRemoval[chans[i]] += -outsamp*DrySend[chans[i]]; \
ClickRemoval[chans2[i*2+0]] += -outsamp*DrySend[chans2[i*2+0]];\
ClickRemoval[chans2[i*2+1]] += -outsamp*DrySend[chans2[i*2+1]];\
} \
\
ClickRemoval[chans[i]] -= outsamp*Starter*DrySend[chans[i]]; \
ClickRemoval[chans2[i*2+0]] -= outsamp*Starter*DrySend[chans2[i*2+0]];\
ClickRemoval[chans2[i*2+1]] -= outsamp*Starter*DrySend[chans2[i*2+1]];\
\
for(out = 0;out < MAX_SENDS;out++) \
{ \
outsamp = lpFilter1PC(WetFilter[out], chans[out], value) * scaler;\
WetClickRemoval[out][0] += outsamp*wetGainDiff[out]; \
if(FirstStart) \
WetClickRemoval[out][0] += -outsamp*WetSend[out]; \
WetClickRemoval[out][0] -= outsamp*Starter*WetSend[out]; \
} \
} \
} \
@@ -409,7 +403,7 @@ static void MixSource(ALsource *ALSource, ALCcontext *ALContext,
const ALfloat scaler = 1.0f/Channels; \
if(j == 0 && UpdateClick) \
{ \
const ALboolean FirstStart = ALSource->FirstStart; \
const ALfloat Starter = (ALSource->FirstStart ? 1.0f : 0.0f); \
for(i = 0;i < Channels;i++) \
{ \
value = (resampler)(Data[DataPosInt*Channels + i], \
@@ -418,15 +412,13 @@ static void MixSource(ALsource *ALSource, ALCcontext *ALContext,
\
outsamp = lpFilter2PC(DryFilter, chans[i]*2, value); \
ClickRemoval[chans[i]] += outsamp*dryGainDiff[chans[i]]; \
if(FirstStart) \
ClickRemoval[chans[i]] += -outsamp*DrySend[chans[i]]; \
ClickRemoval[chans[i]] -= outsamp*Starter*DrySend[chans[i]]; \
\
for(out = 0;out < MAX_SENDS;out++) \
{ \
outsamp = lpFilter1PC(WetFilter[out], chans[out], value) * scaler;\
WetClickRemoval[out][0] += outsamp*wetGainDiff[out]; \
if(FirstStart) \
WetClickRemoval[out][0] += -outsamp*WetSend[out]; \
WetClickRemoval[out][0] -= outsamp*Starter*WetSend[out]; \
} \
} \
} \