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;******************************************************************************
;* SSE-optimized functions for the DCA decoder
;* Copyright (C) 2012-2014 Christophe Gisquet <christophe.gisquet@gmail.com>
;*
;* 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/x86util.asm"
SECTION_RODATA
pf_inv16: times 4 dd 0x3D800000 ; 1/16
SECTION_TEXT
; void int8x8_fmul_int32_sse2(float *dst, const int8_t *src, int scale)
%macro INT8X8_FMUL_INT32 0
cglobal int8x8_fmul_int32, 3,3,5, dst, src, scale
cvtsi2ss m0, scalem
mulss m0, [pf_inv16]
shufps m0, m0, 0
%if cpuflag(sse2)
%if cpuflag(sse4)
pmovsxbd m1, [srcq+0]
pmovsxbd m2, [srcq+4]
%else
movq m1, [srcq]
punpcklbw m1, m1
mova m2, m1
punpcklwd m1, m1
punpckhwd m2, m2
psrad m1, 24
psrad m2, 24
%endif
cvtdq2ps m1, m1
cvtdq2ps m2, m2
%else
movd mm0, [srcq+0]
movd mm1, [srcq+4]
punpcklbw mm0, mm0
punpcklbw mm1, mm1
movq mm2, mm0
movq mm3, mm1
punpcklwd mm0, mm0
punpcklwd mm1, mm1
punpckhwd mm2, mm2
punpckhwd mm3, mm3
psrad mm0, 24
psrad mm1, 24
psrad mm2, 24
psrad mm3, 24
cvtpi2ps m1, mm0
cvtpi2ps m2, mm1
cvtpi2ps m3, mm2
cvtpi2ps m4, mm3
shufps m0, m0, 0
emms
shufps m1, m3, q1010
shufps m2, m4, q1010
%endif
mulps m1, m0
mulps m2, m0
mova [dstq+ 0], m1
mova [dstq+16], m2
REP_RET
%endmacro
%if ARCH_X86_32
INIT_XMM sse
INT8X8_FMUL_INT32
%endif
INIT_XMM sse2
INT8X8_FMUL_INT32
INIT_XMM sse4
INT8X8_FMUL_INT32
; %1=v0/v1 %2=in1 %3=in2
%macro FIR_LOOP 2-3
.loop%1:
%define va m1
%define vb m2
%if %1
%define OFFSET 0
%else
%define OFFSET NUM_COEF*count
%endif
; for v0, incrementing and for v1, decrementing
mova va, [cf0q + OFFSET]
mova vb, [cf0q + OFFSET + 4*NUM_COEF]
%if %0 == 3
mova m4, [cf0q + OFFSET + mmsize]
mova m0, [cf0q + OFFSET + 4*NUM_COEF + mmsize]
%endif
mulps va, %2
mulps vb, %2
%if %0 == 3
mulps m4, %3
mulps m0, %3
addps va, m4
addps vb, m0
%endif
; va = va1 va2 va3 va4
; vb = vb1 vb2 vb3 vb4
%if %1
SWAP va, vb
%endif
mova m4, va
unpcklps va, vb ; va3 vb3 va4 vb4
unpckhps m4, vb ; va1 vb1 va2 vb2
addps m4, va ; va1+3 vb1+3 va2+4 vb2+4
movhlps vb, m4 ; va1+3 vb1+3
addps vb, m4 ; va0..4 vb0..4
movh [outq + count], vb
%if %1
sub cf0q, 8*NUM_COEF
%endif
add count, 8
jl .loop%1
%endmacro
; void dca_lfe_fir(float *out, float *in, float *coefs)
%macro DCA_LFE_FIR 1
cglobal dca_lfe_fir%1, 3,3,6-%1, out, in, cf0
%define IN1 m3
%define IN2 m5
%define count inq
%define NUM_COEF 4*(2-%1)
%define NUM_OUT 32*(%1+1)
movu IN1, [inq + 4 - 1*mmsize]
shufps IN1, IN1, q0123
%if %1 == 0
movu IN2, [inq + 4 - 2*mmsize]
shufps IN2, IN2, q0123
%endif
mov count, -4*NUM_OUT
add cf0q, 4*NUM_COEF*NUM_OUT
add outq, 4*NUM_OUT
; compute v0 first
%if %1 == 0
FIR_LOOP 0, IN1, IN2
%else
FIR_LOOP 0, IN1
%endif
shufps IN1, IN1, q0123
mov count, -4*NUM_OUT
; cf1 already correctly positioned
add outq, 4*NUM_OUT ; outq now at out2
sub cf0q, 8*NUM_COEF
%if %1 == 0
shufps IN2, IN2, q0123
FIR_LOOP 1, IN2, IN1
%else
FIR_LOOP 1, IN1
%endif
RET
%endmacro
INIT_XMM sse
DCA_LFE_FIR 0
DCA_LFE_FIR 1
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