diff options
Diffstat (limited to 'sbc/sbc_tables.h')
-rw-r--r-- | sbc/sbc_tables.h | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/sbc/sbc_tables.h b/sbc/sbc_tables.h index a9a995fa..7c2af076 100644 --- a/sbc/sbc_tables.h +++ b/sbc/sbc_tables.h @@ -351,6 +351,20 @@ static const FIXED_T cos_table_fixed_8[128] = { #undef F /* + * Enforce 16 byte alignment for the data, which is supposed to be used + * with SIMD optimized code. + */ + +#define SBC_ALIGN_BITS 4 +#define SBC_ALIGN_MASK ((1 << (SBC_ALIGN_BITS)) - 1) + +#ifdef __GNUC__ +#define SBC_ALIGNED __attribute__((aligned(1 << (SBC_ALIGN_BITS)))) +#else +#define SBC_ALIGNED +#endif + +/* * Constant tables for the use in SIMD optimized analysis filters * Each table consists of two parts: * 1. reordered "proto" table @@ -360,7 +374,7 @@ static const FIXED_T cos_table_fixed_8[128] = { * and "odd" cases are needed */ -static const FIXED_T analysis_consts_fixed4_simd_even[40 + 16] = { +static const FIXED_T SBC_ALIGNED analysis_consts_fixed4_simd_even[40 + 16] = { #define F(x) F_PROTO4(x) F(0.00000000E+00), F(3.83720193E-03), F(5.36548976E-04), F(2.73370904E-03), @@ -395,7 +409,7 @@ static const FIXED_T analysis_consts_fixed4_simd_even[40 + 16] = { #undef F }; -static const FIXED_T analysis_consts_fixed4_simd_odd[40 + 16] = { +static const FIXED_T SBC_ALIGNED analysis_consts_fixed4_simd_odd[40 + 16] = { #define F(x) F_PROTO4(x) F(2.73370904E-03), F(5.36548976E-04), -F(1.49188357E-03), F(0.00000000E+00), @@ -430,7 +444,7 @@ static const FIXED_T analysis_consts_fixed4_simd_odd[40 + 16] = { #undef F }; -static const FIXED_T analysis_consts_fixed8_simd_even[80 + 64] = { +static const FIXED_T SBC_ALIGNED analysis_consts_fixed8_simd_even[80 + 64] = { #define F(x) F_PROTO8(x) F(0.00000000E+00), F(2.01182542E-03), F(1.56575398E-04), F(1.78371725E-03), @@ -509,7 +523,7 @@ static const FIXED_T analysis_consts_fixed8_simd_even[80 + 64] = { #undef F }; -static const FIXED_T analysis_consts_fixed8_simd_odd[80 + 64] = { +static const FIXED_T SBC_ALIGNED analysis_consts_fixed8_simd_odd[80 + 64] = { #define F(x) F_PROTO8(x) F(0.00000000E+00), -F(8.23919506E-04), F(1.56575398E-04), F(1.78371725E-03), |