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add #define FLAC__LPC_UNROLLED_FILTER_LOOPS for easier selection of filter implementation

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Josh Coalson
2007-07-11 04:15:18 +00:00
parent b592b49140
commit d04ddf8b26
1 changed files with 8 additions and 4 deletions
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12
src/libFLAC/lpc.c
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@@ -49,6 +49,10 @@
#define M_LN2 0.69314718055994530942 #define M_LN2 0.69314718055994530942
#endif #endif
/* OPT: #undef'ing this may improve the speed on some architectures */
#define FLAC__LPC_UNROLLED_FILTER_LOOPS
void FLAC__lpc_window_data(const FLAC__int32 in[], const FLAC__real window[], FLAC__real out[], unsigned data_len) void FLAC__lpc_window_data(const FLAC__int32 in[], const FLAC__real window[], FLAC__real out[], unsigned data_len)
{ {
unsigned i; unsigned i;
@@ -259,7 +263,7 @@ int FLAC__lpc_quantize_coefficients(const FLAC__real lp_coeff[], unsigned order,
} }
void FLAC__lpc_compute_residual_from_qlp_coefficients(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[]) void FLAC__lpc_compute_residual_from_qlp_coefficients(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[])
#ifdef FLAC__OVERFLOW_DETECT /* this ugly flavor is only for debugging */ #if defined(FLAC__OVERFLOW_DETECT) || !defined(FLAC__LPC_UNROLLED_FILTER_LOOPS)
{ {
FLAC__int64 sumo; FLAC__int64 sumo;
unsigned i, j; unsigned i, j;
@@ -525,7 +529,7 @@ void FLAC__lpc_compute_residual_from_qlp_coefficients(const FLAC__int32 *data, u
#endif #endif
void FLAC__lpc_compute_residual_from_qlp_coefficients_wide(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[]) void FLAC__lpc_compute_residual_from_qlp_coefficients_wide(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[])
#ifdef FLAC__OVERFLOW_DETECT /* this ugly flavor is only for debugging */ #if defined(FLAC__OVERFLOW_DETECT) || !defined(FLAC__LPC_UNROLLED_FILTER_LOOPS)
{ {
unsigned i, j; unsigned i, j;
FLAC__int64 sum; FLAC__int64 sum;
@@ -789,7 +793,7 @@ void FLAC__lpc_compute_residual_from_qlp_coefficients_wide(const FLAC__int32 *da
#endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */ #endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */
void FLAC__lpc_restore_signal(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[]) void FLAC__lpc_restore_signal(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[])
#ifdef FLAC__OVERFLOW_DETECT /* this ugly flavor is only for debugging */ #if defined(FLAC__OVERFLOW_DETECT) || !defined(FLAC__LPC_UNROLLED_FILTER_LOOPS)
{ {
FLAC__int64 sumo; FLAC__int64 sumo;
unsigned i, j; unsigned i, j;
@@ -1055,7 +1059,7 @@ void FLAC__lpc_restore_signal(const FLAC__int32 residual[], unsigned data_len, c
#endif #endif
void FLAC__lpc_restore_signal_wide(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[]) void FLAC__lpc_restore_signal_wide(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[])
#ifdef FLAC__OVERFLOW_DETECT /* this ugly flavor is only for debugging */ #if defined(FLAC__OVERFLOW_DETECT) || !defined(FLAC__LPC_UNROLLED_FILTER_LOOPS)
{ {
unsigned i, j; unsigned i, j;
FLAC__int64 sum; FLAC__int64 sum;