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-rw-r--r--src/pcm/Volume.cxx50
1 files changed, 0 insertions, 50 deletions
diff --git a/src/pcm/Volume.cxx b/src/pcm/Volume.cxx
index 539ef1238..0ccfe03b5 100644
--- a/src/pcm/Volume.cxx
+++ b/src/pcm/Volume.cxx
@@ -42,56 +42,6 @@ pcm_volume_sample(typename Traits::value_type _sample,
return PcmClamp<F, Traits>(sample);
}
-#ifdef __i386__
-
-/**
- * Optimized volume function for i386. Use the EDX:EAX 2*32 bit
- * multiplication result instead of emulating 64 bit multiplication.
- */
-static inline int32_t
-pcm_volume_sample_24(int32_t sample, int32_t volume, gcc_unused int32_t dither)
-{
- int32_t result;
-
- asm(/* edx:eax = sample * volume */
- "imul %2\n"
-
- /* "add %3, %1\n" dithering disabled for now, because we
- have no overflow check - is dithering really important
- here? */
-
- /* eax = edx:eax / PCM_VOLUME_1 */
- "sal $22, %%edx\n"
- "shr $10, %1\n"
- "or %%edx, %1\n"
-
- : "=a"(result)
- : "0"(sample), "r"(volume) /* , "r"(dither) */
- : "edx"
- );
-
- return result;
-}
-
-template<>
-inline int32_t
-pcm_volume_sample<SampleFormat::S24_P32,
- SampleTraits<SampleFormat::S24_P32>>(int32_t sample,
- int volume)
-{
- return pcm_volume_sample_24(sample, volume, pcm_volume_dither());
-}
-
-template<>
-inline int32_t
-pcm_volume_sample<SampleFormat::S32,
- SampleTraits<SampleFormat::S32>>(int32_t sample, int volume)
-{
- return pcm_volume_sample_24(sample, volume, pcm_volume_dither());
-}
-
-#endif
-
template<SampleFormat F, class Traits=SampleTraits<F>>
static void
pcm_volume_change(typename Traits::pointer_type dest,