aboutsummaryrefslogtreecommitdiffstats
path: root/Alc
diff options
context:
space:
mode:
authorChris Robinson <[email protected]>2010-09-22 20:53:04 -0700
committerChris Robinson <[email protected]>2010-09-22 20:53:04 -0700
commit764cfb6a0dbddefc757049ff2c90df916074dbfd (patch)
tree6d41dc3a654547e580a1bfa7f026db56152c67cf /Alc
parent4e3c94509340071307d3422011cee7b11f870851 (diff)
Allow the mixing loop to access the different sample formats
Diffstat (limited to 'Alc')
-rw-r--r--Alc/mixer.c126
1 files changed, 63 insertions, 63 deletions
diff --git a/Alc/mixer.c b/Alc/mixer.c
index a4b82c98..1b483357 100644
--- a/Alc/mixer.c
+++ b/Alc/mixer.c
@@ -61,28 +61,28 @@ static __inline ALubyte aluF2UB(ALfloat Value)
}
-static __inline ALfloat point(ALfloat val1, ALfloat val2, ALint frac)
+static __inline ALfloat point32(ALfloat val1, ALfloat val2, ALint frac)
{
return val1;
(void)val2;
(void)frac;
}
-static __inline ALfloat lerp(ALfloat val1, ALfloat val2, ALint frac)
+static __inline ALfloat lerp32(ALfloat val1, ALfloat val2, ALint frac)
{
return val1 + ((val2-val1)*(frac * (1.0f/(1<<FRACTIONBITS))));
}
-static __inline ALfloat cos_lerp(ALfloat val1, ALfloat val2, ALint frac)
+static __inline ALfloat cos_lerp32(ALfloat val1, ALfloat val2, ALint frac)
{
ALfloat mult = (1.0f-cos(frac * (1.0f/(1<<FRACTIONBITS)) * M_PI)) * 0.5f;
return val1 + ((val2-val1)*mult);
}
-#define DO_MIX_MONO(resampler) do { \
+#define DO_MIX_MONO(S,sampler) do { \
if(j == 0) \
{ \
- value = (resampler)(Data.f32[DataPosInt], Data.f32[DataPosInt+1], \
- DataPosFrac); \
+ value = sampler##S(Data.p##S[DataPosInt], Data.p##S[DataPosInt+1], \
+ DataPosFrac); \
\
outsamp = lpFilter4PC(DryFilter, 0, value); \
ClickRemoval[FRONT_LEFT] -= outsamp*DrySend[FRONT_LEFT]; \
@@ -103,8 +103,8 @@ static __inline ALfloat cos_lerp(ALfloat val1, ALfloat val2, ALint frac)
while(BufferSize--) \
{ \
/* First order interpolator */ \
- value = (resampler)(Data.f32[DataPosInt], Data.f32[DataPosInt+1], \
- DataPosFrac); \
+ value = sampler##S(Data.p##S[DataPosInt], Data.p##S[DataPosInt+1], \
+ DataPosFrac); \
\
/* Direct path final mix buffer and panning */ \
outsamp = lpFilter4P(DryFilter, 0, value); \
@@ -134,7 +134,7 @@ static __inline ALfloat cos_lerp(ALfloat val1, ALfloat val2, ALint frac)
ALuint pos = ((DataPosInt < DataSize) ? DataPosInt : (DataPosInt-1)); \
ALuint frac = ((DataPosInt < DataSize) ? DataPosFrac : \
((DataPosFrac-increment)&FRACTIONMASK)); \
- value = (resampler)(Data.f32[pos], Data.f32[pos+1], frac); \
+ value = sampler##S(Data.p##S[pos], Data.p##S[pos+1], frac); \
\
outsamp = lpFilter4PC(DryFilter, 0, value); \
PendingClicks[FRONT_LEFT] += outsamp*DrySend[FRONT_LEFT]; \
@@ -154,15 +154,15 @@ static __inline ALfloat cos_lerp(ALfloat val1, ALfloat val2, ALint frac)
} \
} while(0)
-#define DO_MIX_STEREO(resampler) do { \
+#define DO_MIX_STEREO(S,sampler) do { \
const ALfloat scaler = 1.0f/Channels; \
if(j == 0) \
{ \
for(i = 0;i < Channels;i++) \
{ \
- value = (resampler)(Data.f32[DataPosInt*Channels + i], \
- Data.f32[(DataPosInt+1)*Channels + i], \
- DataPosFrac); \
+ value = sampler##S(Data.p##S[DataPosInt*Channels + i], \
+ Data.p##S[(DataPosInt+1)*Channels + i], \
+ DataPosFrac); \
\
outsamp = lpFilter2PC(DryFilter, chans[i]*2, value); \
ClickRemoval[chans[i+0]] -= outsamp*DrySend[chans[i+0]]; \
@@ -180,9 +180,9 @@ static __inline ALfloat cos_lerp(ALfloat val1, ALfloat val2, ALint frac)
{ \
for(i = 0;i < Channels;i++) \
{ \
- value = (resampler)(Data.f32[DataPosInt*Channels + i], \
- Data.f32[(DataPosInt+1)*Channels + i], \
- DataPosFrac); \
+ value = sampler##S(Data.p##S[DataPosInt*Channels + i], \
+ Data.p##S[(DataPosInt+1)*Channels + i], \
+ DataPosFrac); \
\
outsamp = lpFilter2P(DryFilter, chans[i]*2, value); \
DryBuffer[j][chans[i+0]] += outsamp*DrySend[chans[i+0]]; \
@@ -208,9 +208,9 @@ static __inline ALfloat cos_lerp(ALfloat val1, ALfloat val2, ALint frac)
((DataPosFrac-increment)&FRACTIONMASK)); \
for(i = 0;i < Channels;i++) \
{ \
- value = (resampler)(Data.f32[pos*Channels + i], \
- Data.f32[(pos+1)*Channels + i], \
- frac); \
+ value = sampler##S(Data.p##S[pos*Channels + i], \
+ Data.p##S[(pos+1)*Channels + i], \
+ frac); \
\
outsamp = lpFilter2PC(DryFilter, chans[i]*2, value); \
PendingClicks[chans[i+0]] += outsamp*DrySend[chans[i+0]]; \
@@ -226,15 +226,15 @@ static __inline ALfloat cos_lerp(ALfloat val1, ALfloat val2, ALint frac)
} \
} while(0)
-#define DO_MIX_MC(resampler) do { \
+#define DO_MIX_MC(S,sampler) do { \
const ALfloat scaler = 1.0f/Channels; \
if(j == 0) \
{ \
for(i = 0;i < Channels;i++) \
{ \
- value = (resampler)(Data.f32[DataPosInt*Channels + i], \
- Data.f32[(DataPosInt+1)*Channels + i], \
- DataPosFrac); \
+ value = sampler##S(Data.p##S[DataPosInt*Channels + i], \
+ Data.p##S[(DataPosInt+1)*Channels + i], \
+ DataPosFrac); \
\
outsamp = lpFilter2PC(DryFilter, chans[i]*2, value); \
ClickRemoval[chans[i]] -= outsamp*DrySend[chans[i]]; \
@@ -250,9 +250,9 @@ static __inline ALfloat cos_lerp(ALfloat val1, ALfloat val2, ALint frac)
{ \
for(i = 0;i < Channels;i++) \
{ \
- value = (resampler)(Data.f32[DataPosInt*Channels + i], \
- Data.f32[(DataPosInt+1)*Channels + i], \
- DataPosFrac); \
+ value = sampler##S(Data.p##S[DataPosInt*Channels + i], \
+ Data.p##S[(DataPosInt+1)*Channels + i], \
+ DataPosFrac); \
\
outsamp = lpFilter2P(DryFilter, chans[i]*2, value); \
DryBuffer[j][chans[i]] += outsamp*DrySend[chans[i]]; \
@@ -276,9 +276,9 @@ static __inline ALfloat cos_lerp(ALfloat val1, ALfloat val2, ALint frac)
((DataPosFrac-increment)&FRACTIONMASK)); \
for(i = 0;i < Channels;i++) \
{ \
- value = (resampler)(Data.f32[pos*Channels + i], \
- Data.f32[(pos+1)*Channels + i], \
- frac); \
+ value = sampler##S(Data.p##S[pos*Channels + i], \
+ Data.p##S[(pos+1)*Channels + i], \
+ frac); \
\
outsamp = lpFilter2PC(DryFilter, chans[i]*2, value); \
PendingClicks[chans[i]] += outsamp*DrySend[chans[i]]; \
@@ -293,22 +293,22 @@ static __inline ALfloat cos_lerp(ALfloat val1, ALfloat val2, ALint frac)
} while(0)
-#define MIX_MONO() do { \
+#define MIX_MONO(S) do { \
switch(Resampler) \
{ \
case POINT_RESAMPLER: \
- DO_MIX_MONO(point); break; \
+ DO_MIX_MONO(S,point); break; \
case LINEAR_RESAMPLER: \
- DO_MIX_MONO(lerp); break; \
+ DO_MIX_MONO(S,lerp); break; \
case COSINE_RESAMPLER: \
- DO_MIX_MONO(cos_lerp); break; \
+ DO_MIX_MONO(S,cos_lerp); break; \
case RESAMPLER_MIN: \
case RESAMPLER_MAX: \
break; \
} \
} while(0)
-#define MIX_STEREO() do { \
+#define MIX_STEREO(S) do { \
const int chans[] = { \
FRONT_LEFT, FRONT_RIGHT, \
SIDE_LEFT, SIDE_RIGHT, \
@@ -318,28 +318,28 @@ static __inline ALfloat cos_lerp(ALfloat val1, ALfloat val2, ALint frac)
switch(Resampler) \
{ \
case POINT_RESAMPLER: \
- DO_MIX_STEREO(point); break; \
+ DO_MIX_STEREO(S,point); break; \
case LINEAR_RESAMPLER: \
- DO_MIX_STEREO(lerp); break; \
+ DO_MIX_STEREO(S,lerp); break; \
case COSINE_RESAMPLER: \
- DO_MIX_STEREO(cos_lerp); break; \
+ DO_MIX_STEREO(S,cos_lerp); break; \
case RESAMPLER_MIN: \
case RESAMPLER_MAX: \
break; \
} \
} while(0)
-#define MIX_MC(...) do { \
+#define MIX_MC(S,...) do { \
const int chans[] = { __VA_ARGS__ }; \
\
switch(Resampler) \
{ \
case POINT_RESAMPLER: \
- DO_MIX_MC(point); break; \
+ DO_MIX_MC(S,point); break; \
case LINEAR_RESAMPLER: \
- DO_MIX_MC(lerp); break; \
+ DO_MIX_MC(S,lerp); break; \
case COSINE_RESAMPLER: \
- DO_MIX_MC(cos_lerp); break; \
+ DO_MIX_MC(S,cos_lerp); break; \
case RESAMPLER_MIN: \
case RESAMPLER_MAX: \
break; \
@@ -419,9 +419,9 @@ static void MixSource(ALsource *ALSource, ALCcontext *ALContext,
do {
const ALbuffer *ALBuffer;
union {
- ALfloat *f32;
- ALshort *s16;
- ALubyte *u8;
+ ALfloat *p32;
+ ALshort *p16;
+ ALubyte *p8;
} Data = { NULL };
ALuint DataSize = 0;
ALuint LoopStart = 0;
@@ -432,7 +432,7 @@ static void MixSource(ALsource *ALSource, ALCcontext *ALContext,
/* Get buffer info */
if((ALBuffer=BufferListItem->buffer) != NULL)
{
- Data.u8 = ALBuffer->data;
+ Data.p8 = ALBuffer->data;
DataSize = ALBuffer->size;
DataSize /= aluFrameSizeFromFormat(ALBuffer->format);
Channels = aluChannelsFromFormat(ALBuffer->format);
@@ -463,7 +463,7 @@ static void MixSource(ALsource *ALSource, ALCcontext *ALContext,
{
ALint ulExtraSamples = BUFFER_PADDING*Channels*Bytes;
ulExtraSamples = min(NextBuf->size, ulExtraSamples);
- memcpy(&Data.u8[DataSize*Channels*Bytes],
+ memcpy(&Data.p8[DataSize*Channels*Bytes],
NextBuf->data, ulExtraSamples);
}
}
@@ -474,13 +474,13 @@ static void MixSource(ALsource *ALSource, ALCcontext *ALContext,
{
ALint ulExtraSamples = BUFFER_PADDING*Channels*Bytes;
ulExtraSamples = min(NextBuf->size, ulExtraSamples);
- memcpy(&Data.u8[DataSize*Channels*Bytes],
+ memcpy(&Data.p8[DataSize*Channels*Bytes],
&((ALubyte*)NextBuf->data)[LoopStart*Channels*Bytes],
ulExtraSamples);
}
}
else
- memset(&Data.u8[DataSize*Channels*Bytes], 0, (BUFFER_PADDING*Channels*Bytes));
+ memset(&Data.p8[DataSize*Channels*Bytes], 0, (BUFFER_PADDING*Channels*Bytes));
/* Figure out how many samples we can mix. */
DataSize64 = LoopEnd;
@@ -494,26 +494,26 @@ static void MixSource(ALsource *ALSource, ALCcontext *ALContext,
/* Actual sample mixing loops */
if(Channels == 1) /* Mono */
- MIX_MONO();
+ MIX_MONO(32);
else if(Channels == 2) /* Stereo */
- MIX_STEREO();
+ MIX_STEREO(32);
else if(Channels == 4) /* Quad */
- MIX_MC(FRONT_LEFT, FRONT_RIGHT,
- BACK_LEFT, BACK_RIGHT);
+ MIX_MC(32, FRONT_LEFT, FRONT_RIGHT,
+ BACK_LEFT, BACK_RIGHT);
else if(Channels == 6) /* 5.1 */
- MIX_MC(FRONT_LEFT, FRONT_RIGHT,
- FRONT_CENTER, LFE,
- BACK_LEFT, BACK_RIGHT);
+ MIX_MC(32, FRONT_LEFT, FRONT_RIGHT,
+ FRONT_CENTER, LFE,
+ BACK_LEFT, BACK_RIGHT);
else if(Channels == 7) /* 6.1 */
- MIX_MC(FRONT_LEFT, FRONT_RIGHT,
- FRONT_CENTER, LFE,
- BACK_CENTER,
- SIDE_LEFT, SIDE_RIGHT);
+ MIX_MC(32, FRONT_LEFT, FRONT_RIGHT,
+ FRONT_CENTER, LFE,
+ BACK_CENTER,
+ SIDE_LEFT, SIDE_RIGHT);
else if(Channels == 8) /* 7.1 */
- MIX_MC(FRONT_LEFT, FRONT_RIGHT,
- FRONT_CENTER, LFE,
- BACK_LEFT, BACK_RIGHT,
- SIDE_LEFT, SIDE_RIGHT);
+ MIX_MC(32, FRONT_LEFT, FRONT_RIGHT,
+ FRONT_CENTER, LFE,
+ BACK_LEFT, BACK_RIGHT,
+ SIDE_LEFT, SIDE_RIGHT);
else /* Unknown? */
{
while(BufferSize--)
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-01 18:44:22 +0000