255 to 174 cycles on Arrandale / Win64. Unrolling yields no gain.
Signed-off-by: Diego Biurrun <diego@biurrun.de>
SECTION_RODATA
; mask equivalent for multiply by -1.0 1.0
ps_mask times 2 dd 1<<31, 0
SECTION_RODATA
; mask equivalent for multiply by -1.0 1.0
ps_mask times 2 dd 1<<31, 0
cmp zq, r1q
jne .loop
REP_RET
cmp zq, r1q
jne .loop
REP_RET
+
+INIT_XMM sse
+cglobal sbr_qmf_post_shuffle, 2,3,4,W,z
+ lea r2q, [zq + (64-4)*4]
+ mova m3, [ps_neg]
+.loop:
+ mova m1, [zq]
+ xorps m0, m3, [r2q]
+ shufps m0, m0, m0, q0123
+ unpcklps m2, m0, m1
+ unpckhps m0, m0, m1
+ mova [Wq + 0], m2
+ mova [Wq + 16], m0
+ add Wq, 32
+ sub r2q, 16
+ add zq, 16
+ cmp zq, r2q
+ jl .loop
+ REP_RET
void ff_sbr_hf_gen_sse(float (*X_high)[2], const float (*X_low)[2],
const float alpha0[2], const float alpha1[2],
float bw, int start, int end);
void ff_sbr_hf_gen_sse(float (*X_high)[2], const float (*X_low)[2],
const float alpha0[2], const float alpha1[2],
float bw, int start, int end);
+void ff_sbr_qmf_post_shuffle_sse(float W[32][2], const float *z);
void ff_sbrdsp_init_x86(SBRDSPContext *s)
{
void ff_sbrdsp_init_x86(SBRDSPContext *s)
{
s->sum64x5 = ff_sbr_sum64x5_sse;
s->hf_g_filt = ff_sbr_hf_g_filt_sse;
s->hf_gen = ff_sbr_hf_gen_sse;
s->sum64x5 = ff_sbr_sum64x5_sse;
s->hf_g_filt = ff_sbr_hf_g_filt_sse;
s->hf_gen = ff_sbr_hf_gen_sse;
+ s->qmf_post_shuffle = ff_sbr_qmf_post_shuffle_sse;