diff options
| -rw-r--r-- | Alc/mixer.c | 102 |
1 files changed, 43 insertions, 59 deletions
diff --git a/Alc/mixer.c b/Alc/mixer.c index a452727e..4e7ec8b6 100644 --- a/Alc/mixer.c +++ b/Alc/mixer.c @@ -537,82 +537,58 @@ static __inline ALfloat cos_lerp16(ALfloat val1, ALfloat val2, ALint frac) } while(0) -#define MIX_MONO(S) do { \ - switch(Source->Resampler) \ - { \ - case POINT_RESAMPLER: \ - DO_MIX_MONO(S,point); break; \ - case LINEAR_RESAMPLER: \ - DO_MIX_MONO(S,lerp); break; \ - case COSINE_RESAMPLER: \ - DO_MIX_MONO(S,cos_lerp); break; \ - case RESAMPLER_MIN: \ - case RESAMPLER_MAX: \ - break; \ - } \ +#define MIX_MONO(sampler) do { \ + if(Bytes == 4) \ + DO_MIX_MONO(32,sampler); \ + else if(Bytes == 2) \ + DO_MIX_MONO(16,sampler); \ } while(0) -#define MIX_STEREO(S) do { \ +#define MIX_STEREO(sampler) do { \ const int chans[] = { \ FRONT_LEFT, FRONT_RIGHT, \ SIDE_LEFT, SIDE_RIGHT, \ BACK_LEFT, BACK_RIGHT \ }; \ \ - switch(Source->Resampler) \ - { \ - case POINT_RESAMPLER: \ - DO_MIX_STEREO(S,point); break; \ - case LINEAR_RESAMPLER: \ - DO_MIX_STEREO(S,lerp); break; \ - case COSINE_RESAMPLER: \ - DO_MIX_STEREO(S,cos_lerp); break; \ - case RESAMPLER_MIN: \ - case RESAMPLER_MAX: \ - break; \ - } \ + if(Bytes == 4) \ + DO_MIX_STEREO(32,sampler); \ + else if(Bytes == 2) \ + DO_MIX_STEREO(16,sampler); \ } while(0) -#define MIX_MC(S,...) do { \ +#define MIX_MC(sampler,...) do { \ const int chans[] = { __VA_ARGS__ }; \ \ - switch(Source->Resampler) \ - { \ - case POINT_RESAMPLER: \ - DO_MIX_MC(S,point); break; \ - case LINEAR_RESAMPLER: \ - DO_MIX_MC(S,lerp); break; \ - case COSINE_RESAMPLER: \ - DO_MIX_MC(S,cos_lerp); break; \ - case RESAMPLER_MIN: \ - case RESAMPLER_MAX: \ - break; \ - } \ + if(Bytes == 4) \ + DO_MIX_MC(32,sampler); \ + else if(Bytes == 2) \ + DO_MIX_MC(16,sampler); \ } while(0) -#define MIX(S) do { \ +#define MIX(sampler) do { \ if(Channels == 1) /* Mono */ \ - MIX_MONO(S); \ + MIX_MONO(sampler); \ else if(Channels == 2) /* Stereo */ \ - MIX_STEREO(S); \ + MIX_STEREO(sampler); \ else if(Channels == 4) /* Quad */ \ - MIX_MC(S, FRONT_LEFT, FRONT_RIGHT, \ - BACK_LEFT, BACK_RIGHT); \ + MIX_MC(sampler, FRONT_LEFT, FRONT_RIGHT, \ + BACK_LEFT, BACK_RIGHT); \ else if(Channels == 6) /* 5.1 */ \ - MIX_MC(S, FRONT_LEFT, FRONT_RIGHT, \ - FRONT_CENTER, LFE, \ - BACK_LEFT, BACK_RIGHT); \ + MIX_MC(sampler, FRONT_LEFT, FRONT_RIGHT, \ + FRONT_CENTER, LFE, \ + BACK_LEFT, BACK_RIGHT); \ else if(Channels == 7) /* 6.1 */ \ - MIX_MC(S, FRONT_LEFT, FRONT_RIGHT, \ - FRONT_CENTER, LFE, \ - BACK_CENTER, \ - SIDE_LEFT, SIDE_RIGHT); \ + MIX_MC(sampler, FRONT_LEFT, FRONT_RIGHT, \ + FRONT_CENTER, LFE, \ + BACK_CENTER, \ + SIDE_LEFT, SIDE_RIGHT); \ else if(Channels == 8) /* 7.1 */ \ - MIX_MC(S, FRONT_LEFT, FRONT_RIGHT, \ - FRONT_CENTER, LFE, \ - BACK_LEFT, BACK_RIGHT, \ - SIDE_LEFT, SIDE_RIGHT); \ + MIX_MC(sampler, FRONT_LEFT, FRONT_RIGHT, \ + FRONT_CENTER, LFE, \ + BACK_LEFT, BACK_RIGHT, \ + SIDE_LEFT, SIDE_RIGHT); \ } while(0) @@ -717,10 +693,18 @@ ALvoid MixSource(ALsource *Source, ALCdevice *Device, ALuint SamplesToDo) BufferSize = min(BufferSize, (SamplesToDo-j)); - if(Bytes == 4) /* 32-bit float */ - MIX(32); - else if(Bytes == 2) /* signed 16-bit */ - MIX(16); + switch(Source->Resampler) + { + case POINT_RESAMPLER: + MIX(point); break; + case LINEAR_RESAMPLER: + MIX(lerp); break; + case COSINE_RESAMPLER: + MIX(cos_lerp); break; + case RESAMPLER_MIN: + case RESAMPLER_MAX: + break; + } skipmix: /* Handle looping sources */ |