;******************************************************************************
;* 36 point SSE-optimized IMDCT transform
;* Copyright (c) 2011 Vitor Sessak
;*
;* This file is part of Libav.
;*
;* Libav is free software; you can redistribute it and/or
;* modify it under the terms of the GNU Lesser General Public
;* License as published by the Free Software Foundation; either
;* version 2.1 of the License, or (at your option) any later version.
;*
;* Libav is distributed in the hope that it will be useful,
;* but WITHOUT ANY WARRANTY; without even the implied warranty of
;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;* Lesser General Public License for more details.
;*
;* You should have received a copy of the GNU Lesser General Public
;* License along with Libav; if not, write to the Free Software
;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
;******************************************************************************
%include "libavutil/x86/x86inc.asm"
%include "libavutil/x86/x86util.asm"
SECTION_RODATA
align 16
ps_mask: dd 0, ~0, ~0, ~0
ps_mask2: dd 0, ~0, 0, ~0
ps_mask3: dd 0, 0, 0, ~0
ps_mask4: dd 0, ~0, 0, 0
ps_val1: dd -0.5, -0.5, -0.8660254038, -0.8660254038
ps_val2: dd 1.0, 1.0, 0.8660254038, 0.8660254038
ps_val3: dd 0.1736481777, 0.1736481777, 0.3420201433, 0.3420201433
ps_val4: dd -0.7660444431, -0.7660444431, 0.8660254038, 0.8660254038
ps_val5: dd -0.9396926208, -0.9396926208, -0.9848077530, -0.9848077530
ps_val6: dd 0.5, 0.5, -0.6427876097, -0.6427876097
ps_val7: dd 1.0, 1.0, -0.6427876097, -0.6427876097
ps_p1p1m1m1: dd 0, 0, 0x80000000, 0x80000000
ps_p1m1p1m1: dd 0, 0x80000000, 0, 0x80000000
ps_cosh: dd 1.0, 0.50190991877167369479, 1.0, 5.73685662283492756461
dd 1.0, 0.51763809020504152469, 1.0, 1.93185165257813657349
dd 1.0, 0.55168895948124587824, -1.0, -1.18310079157624925896
dd 1.0, 0.61038729438072803416, -1.0, -0.87172339781054900991
dd 1.0, 0.70710678118654752439, 0.0, 0.0
ps_cosh_sse3: dd 1.0, -0.50190991877167369479, 1.0, -5.73685662283492756461
dd 1.0, -0.51763809020504152469, 1.0, -1.93185165257813657349
dd 1.0, -0.55168895948124587824, -1.0, 1.18310079157624925896
dd 1.0, -0.61038729438072803416, -1.0, 0.87172339781054900991
dd 1.0, 0.70710678118654752439, 0.0, 0.0
%define SBLIMIT 32
SECTION_TEXT
%macro PSHUFD_SSE_AVX 3
shufps %1, %2, %2, %3
%endmacro
%macro PSHUFD_SSE2 3
pshufd %1, %2, %3
%endmacro
; input %1={x1,x2,x3,x4}, %2={y1,y2,y3,y4}
; output %3={x3,x4,y1,y2}
%macro BUILDINVHIGHLOW_SSE 3
movlhps %3, %2
movhlps %3, %1
%endmacro
%macro BUILDINVHIGHLOW_AVX 3
shufps %3, %1, %2, 0x4e
%endmacro
; input %1={x1,x2,x3,x4}, %2={y1,y2,y3,y4}
; output %3={x4,y1,y2,y3}
%macro ROTLEFT_SSE 3
BUILDINVHIGHLOW %1, %2, %3
shufps %3, %3, %2, 0x99
%endmacro
%macro ROTLEFT_SSSE3 3
palignr %3, %2, %1, 12
%endmacro
%macro INVERTHL_SSE1 2
movhlps %1, %2
movlhps %1, %2
%endmacro
%macro INVERTHL_SSE2 2
PSHUFD %1, %2, 0x4e
%endmacro
%macro BUTTERF_SSE12 3
INVERTHL %2, %1
xorps %1, [ps_p1p1m1m1]
addps %1, %2
mulps %1, [ps_cosh + %3]
PSHUFD %2, %1, 0xb1
xorps %1, [ps_p1m1p1m1]
addps %1, %2
%endmacro
%macro BUTTERF_SSE3 3
INVERTHL %2, %1
xorps %1, %1, [ps_p1p1m1m1]
addps %1, %1, %2
mulps %1, %1, [ps_cosh_sse3 + %3]
PSHUFD %2, %1, 0xb1
addsubps %1, %1, %2
%endmacro
%macro STORE 3
movhlps %2, %1
movss [%3 ], %1
movss [%3 + 8*SBLIMIT], %2
shufps %1, %1, 0xb1
movss [%3 + 4*SBLIMIT], %1
movhlps %2, %1
movss [%3 + 12*SBLIMIT], %2
%endmacro
%macro LOADA64 2
movlps %1, [%2]
movhps %1, [%2 + 8]
%endmacro
%macro STOREA64 2
movlps [%1 ], %2
movhps [%1 + 8], %2
%endmacro
%macro DEFINE_IMDCT 1
cglobal imdct36_float_%1, 4,4,9, out, buf, in, win
; for(i=17;i>=1;i--) in[i] += in[i-1];
LOADA64 m0, inq
LOADA64 m1, inq + 16
ROTLEFT m0, m1, m5
PSHUFD m6, m0, 0x93
andps m6, m6, [ps_mask]
addps m0, m0, m6
LOADA64 m2, inq + 32
ROTLEFT m1, m2, m7
addps m1, m1, m5
LOADA64 m3, inq + 48
ROTLEFT m2, m3, m5
xorps m4, m4, m4
movlps m4, [inq+64]
BUILDINVHIGHLOW m3, m4, m6
shufps m6, m6, m4, 0xa9
addps m4, m4, m6
addps m2, m2, m7
addps m3, m3, m5
; for(i=17;i>=3;i-=2) in[i] += in[i-2];
movlhps m5, m5, m0
andps m5, m5, [ps_mask3]
BUILDINVHIGHLOW m0, m1, m7
andps m7, m7, [ps_mask2]
addps m0, m0, m5
BUILDINVHIGHLOW m1, m2, m6
andps m6, m6, [ps_mask2]
addps m1, m1, m7
BUILDINVHIGHLOW m2, m3, m7
andps m7, m7, [ps_mask2]
addps m2, m2, m6
movhlps m6, m6, m3
andps m6, m6, [ps_mask4]
addps m3, m3, m7
addps m4, m4, m6
; Populate tmp[]
movlhps m6, m1, m5 ; zero out high values
subps m6, m6, m4
subps m5, m0, m3
%ifdef ARCH_X86_64
SWAP m5, m8
%endif
mulps m7, m2, [ps_val1]
%ifdef ARCH_X86_64
mulps m5, m8, [ps_val2]
%else
mulps m5, m5, [ps_val2]
%endif
addps m7, m7, m5
mulps m5, m6, [ps_val1]
subps m7, m7, m5
%ifdef ARCH_X86_64
SWAP m5, m8
%else
subps m5, m0, m3
%endif
subps m5, m5, m6
addps m5, m5, m2
shufps m6, m4, m3, 0xe4
subps m6, m6, m2
mulps m6, m6, [ps_val3]
addps m4, m4, m1
mulps m4, m4, [ps_val4]
shufps m1, m1, m0, 0xe4
addps m1, m1, m2
mulps m1, m1, [ps_val5]
mulps m3, m3, [ps_val6]
mulps m0, m0, [ps_val7]
addps m0, m0, m3
xorps m2, m1, [ps_p1p1m1m1]
subps m2, m2, m4
addps m2, m2, m0
addps m3, m4, m0
subps m3, m3, m6
xorps m3, m3, [ps_p1p1m1m1]
shufps m0, m0, m4, 0xe4
subps m0, m0, m1
addps m0, m0, m6
BUILDINVHIGHLOW m2, m3, m4
shufps m3, m3, m2, 0x4e
; we have tmp = {SwAPLH(m0), SwAPLH(m7), m3, m4, m5}
BUTTERF m0, m1, 0
BUTTERF m7, m2, 16
BUTTERF m3, m6, 32
BUTTERF m4, m1, 48
mulps m5, m5, [ps_cosh + 64]
PSHUFD m1, m5, 0xe1
xorps m5, m5, [ps_p1m1p1m1]
addps m5, m5, m1
; permutates:
; m0 0 1 2 3 => 2 6 10 14 m1
; m7 4 5 6 7 => 3 7 11 15 m2
; m3 8 9 10 11 => 17 13 9 5 m3
; m4 12 13 14 15 => 16 12 8 4 m5
; m5 16 17 xx xx => 0 1 xx xx m0
unpckhps m1, m0, m7
unpckhps m6, m3, m4
movhlps m2, m6, m1
movlhps m1, m1, m6
unpcklps m5, m5, m4
unpcklps m3, m3, m7
movhlps m4, m3, m5
movlhps m5, m5, m3
SWAP m4, m3
; permutation done
PSHUFD m6, m2, 0xb1
movlps m7, [bufq + 64]
mulps m6, m6, [winq + 16*4]
addps m6, m6, m7
movss [outq + 64*SBLIMIT], m6
shufps m6, m6, m6, 0xb1
movss [outq + 68*SBLIMIT], m6
mulps m6, m3, [winq + 4*4]
LOADA64 m4, bufq + 16
addps m6, m6, m4
STORE m6, m7, outq + 16*SBLIMIT
shufps m4, m0, m3, 0xb5
mulps m4, m4, [winq + 8*4]
LOADA64 m7, bufq + 32
addps m4, m4, m7
STORE m4, m6, outq + 32*SBLIMIT
shufps m3, m3, m2, 0xb1
mulps m3, m3, [winq + 12*4]
LOADA64 m7, bufq + 48
addps m3, m3, m7
STORE m3, m7, outq + 48*SBLIMIT
mulps m2, m2, [winq]
LOADA64 m6, bufq
addps m2, m2, m6
STORE m2, m7, outq
mulps m4, m1, [winq + 20*4]
STOREA64 bufq, m4
mulps m3, m5, [winq + 24*4]
STOREA64 bufq + 16, m3
shufps m0, m0, m5, 0xb0
mulps m0, m0, [winq + 28*4]
STOREA64 bufq + 32, m0
shufps m5, m5, m1, 0xb1
mulps m5, m5, [winq + 32*4]
STOREA64 bufq + 48, m5
shufps m1, m1, m1, 0xb1
mulps m1, m1, [winq + 36*4]
movlps [bufq + 64], m1
RET
%endmacro
%define PSHUFD PSHUFD_SSE_AVX
%define INVERTHL INVERTHL_SSE1
%define BUTTERF BUTTERF_SSE12
%define BUTTERF0 BUTTERF0_SSE12
%define BUILDINVHIGHLOW BUILDINVHIGHLOW_SSE
%define ROTLEFT ROTLEFT_SSE
INIT_XMM
DEFINE_IMDCT sse
%define PSHUFD PSHUFD_SSE2
%define INVERTHL INVERTHL_SSE2
DEFINE_IMDCT sse2
%define BUTTERF BUTTERF_SSE3
%define BUTTERF0 BUTTERF0_SSE3
DEFINE_IMDCT sse3
%define ROTLEFT ROTLEFT_SSSE3
DEFINE_IMDCT ssse3
%define BUILDINVHIGHLOW BUILDINVHIGHLOW_AVX
%define PSHUFD PSHUFD_SSE_AVX
INIT_AVX
DEFINE_IMDCT avx