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| author | Erik de Castro Lopo <erikd@mega-nerd.com> | 2014-12-04 21:03:01 +1100 |
|---|---|---|
| committer | Erik de Castro Lopo <erikd@mega-nerd.com> | 2014-12-04 21:03:06 +1100 |
| commit | ac0b4b4cab42fdd5c010bac85bf4e63f49647e69 (patch) | |
| tree | ca05780c2fad18468d1fb2d8a691250bfdf2b046 /src/libFLAC/include/private/lpc.h | |
| parent | d03c9f46be975307f30db39c8cbd09b505fe5e24 (diff) | |
| download | flac-ac0b4b4cab42fdd5c010bac85bf4e63f49647e69.tar.gz | |
Improve encoding speed on older Intel CPUs.
The commit http://git.xiph.org/?p=flac.git;a=commit;h=e9d805dd4374
changed the that calculate autocorrelation. However, the new code
worked slightly (about 4%) slower on Core 2, but with the new
presets the speed decrease can reach ~25%.
This patch enables both old and new functions and chooses between
them at runtime.
Patch-from: lvqcl <lvqcl.mail@gmail.com>
Diffstat (limited to 'src/libFLAC/include/private/lpc.h')
| -rw-r--r-- | src/libFLAC/include/private/lpc.h | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/src/libFLAC/include/private/lpc.h b/src/libFLAC/include/private/lpc.h index d36b30be..c4ed085c 100644 --- a/src/libFLAC/include/private/lpc.h +++ b/src/libFLAC/include/private/lpc.h @@ -73,18 +73,22 @@ void FLAC__lpc_compute_autocorrelation(const FLAC__real data[], unsigned data_le # ifdef FLAC__CPU_IA32 # ifdef FLAC__HAS_NASM void FLAC__lpc_compute_autocorrelation_asm_ia32(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]); -void FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_4(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]); -void FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_8(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]); -void FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_12(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]); -void FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_16(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]); +void FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_4_old(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]); +void FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_8_old(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]); +void FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_12_old(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]); +void FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_16_old(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]); # endif # endif # if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && defined FLAC__HAS_X86INTRIN # ifdef FLAC__SSE_SUPPORTED -void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_4(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]); -void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_8(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]); -void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_12(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]); -void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_16(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]); +void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_4_old(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]); +void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_8_old(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]); +void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_12_old(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]); +void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_16_old(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]); +void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_4_new(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]); +void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_8_new(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]); +void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_12_new(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]); +void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_16_new(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]); # endif # endif #endif |