Commit 37b001d1 authored by Ronald S. Bultje's avatar Ronald S. Bultje

vp9/x86: idct_32x32_add_ssse3 sub-16x16-idct.

Runtime of all IDCTs together goes from 3327 to 2473 cycles (intra, i.e.
~35% faster) or from 2312 to 1448 cycles (inter, i.e. ~60% faster). Total
decode time of ped1080p.webm goes from 8.086sec to 7.974sec (1.4% faster).
parent e84d14df
......@@ -724,6 +724,20 @@ cglobal vp9_idct_idct_16x16_add, 4, 5, 16, 512, dst, stride, block, eob
mova m15, [%1+11*64]
mova m12, [%1+13*64]
mova m11, [%1+15*64]
%if %3 <= 16
pmulhrsw m5, m10, [pw_16364x2]
pmulhrsw m10, [pw_804x2]
pmulhrsw m4, m11, [pw_m11003x2]
pmulhrsw m11, [pw_12140x2]
pmulhrsw m7, m8, [pw_14811x2]
pmulhrsw m8, [pw_7005x2]
pmulhrsw m6, m9, [pw_m5520x2]
pmulhrsw m9, [pw_15426x2]
pmulhrsw m1, m14, [pw_15893x2]
pmulhrsw m14, [pw_3981x2]
pmulhrsw m0, m15, [pw_m8423x2]
pmulhrsw m15, [pw_14053x2]
%else
mova m4, [%1+17*64]
mova m0, [%1+21*64]
mova m7, [%1+23*64]
......@@ -740,6 +754,7 @@ cglobal vp9_idct_idct_16x16_add, 4, 5, 16, 512, dst, stride, block, eob
VP9_UNPACK_MULSUB_2W_4X 6, 9, 5520, 15426, [pd_8192], 2, 3 ; t19, t28
VP9_UNPACK_MULSUB_2W_4X 14, 1, 15893, 3981, [pd_8192], 2, 3 ; t20, t27
VP9_UNPACK_MULSUB_2W_4X 0, 15, 8423, 14053, [pd_8192], 2, 3 ; t21, t26
%endif
; from 1 stage forward
SUMSUB_BA w, 4, 10, 2
......@@ -749,10 +764,17 @@ cglobal vp9_idct_idct_16x16_add, 4, 5, 16, 512, dst, stride, block, eob
; temporary storage
mova [rsp+17*%%str], m8 ; t16
mova [rsp+21*%%str], m4 ; t19
%if %3 <= 16
pmulhrsw m3, m12, [pw_13160x2]
pmulhrsw m12, [pw_9760x2]
pmulhrsw m2, m13, [pw_m2404x2]
pmulhrsw m13, [pw_16207x2]
%else
mova m2, [%1+29*64]
mova m3, [%1+19*64]
VP9_UNPACK_MULSUB_2W_4X 12, 3, 13160, 9760, [pd_8192], 4, 8 ; t22, t25
VP9_UNPACK_MULSUB_2W_4X 2, 13, 2404, 16207, [pd_8192], 4, 8 ; t23, t24
%endif
; m10=t16, m4=t17, m8=t18, m6=t19, m14=t20, m0=t21, m12=t22, m2=t23,
; m13=t24, m3=t25, m15=t26, m1=t27, m9=t28, m7=t29, m11=t30, m5=t31
......@@ -1005,8 +1027,10 @@ cglobal vp9_idct_idct_16x16_add, 4, 5, 16, 512, dst, stride, block, eob
INIT_XMM ssse3
cglobal vp9_idct_idct_32x32_add, 4, 8, 16, 2048, dst, stride, block, eob
cmp eobd, 1
cmp eobd, 135
jg .idctfull
cmp eobd, 1
jg .idct16x16
; dc-only case
movd m0, [blockq]
......@@ -1026,6 +1050,37 @@ cglobal vp9_idct_idct_32x32_add, 4, 8, 16, 2048, dst, stride, block, eob
RET
DEFINE_ARGS dst_bak, stride, block, cnt, dst, stride30, dst_end, stride2
.idct16x16:
mov cntd, 2
.loop1_16x16:
VP9_IDCT32_1D blockq, 1, 16
add blockq, 16
add rsp, 512
dec cntd
jg .loop1_16x16
sub blockq, 32
sub rsp, 1024
mov stride30q, strideq ; stride
lea stride2q, [strideq*2] ; stride*2
shl stride30q, 5 ; stride*32
mov cntd, 4
sub stride30q, stride2q ; stride*30
.loop2_16x16:
mov dstq, dst_bakq
lea dst_endq, [dst_bakq+stride30q]
VP9_IDCT32_1D rsp, 2, 16
add dst_bakq, 8
add rsp, 16
dec cntd
jg .loop2_16x16
sub rsp, 64
; at the end of the loop, m7 should still be zero
; use that to zero out block coefficients
ZERO_BLOCK blockq, 64, 16, m7
RET
.idctfull:
mov cntd, 4
.loop1_full:
......
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