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;******************************************************************************
;* Copyright (c) 2012 Michael Niedermayer
;*
;* This file is part of FFmpeg.
;*
;* FFmpeg 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.
;*
;* FFmpeg 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 FFmpeg; 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
flt2pm31: times 8 dd 4.6566129e-10
SECTION .text
%macro INT16_TO_INT32 1
cglobal int16_to_int32_%1, 3, 3, 3, dst, src, len
mov srcq, [srcq]
mov dstq, [dstq]
%ifidn %1, a
test dstq, mmsize-1
jne int16_to_int32_u_int %+ SUFFIX
test srcq, mmsize-1
jne int16_to_int32_u_int %+ SUFFIX
%else
int16_to_int32_u_int %+ SUFFIX
%endif
add dstq, lenq
shr lenq, 1
add srcq, lenq
neg lenq
.next
mov%1 m2, [srcq+lenq]
pxor m0, m0
pxor m1, m1
punpcklwd m0, m2
punpckhwd m1, m2
mov%1 [ dstq+2*lenq], m0
mov%1 [mmsize + dstq+2*lenq], m1
add lenq, mmsize
jl .next
%if mmsize == 8
emms
%endif
REP_RET
%endmacro
%macro INT32_TO_FLOAT 1
cglobal int32_to_float_%1, 3, 3, 3, dst, src, len
mov srcq, [srcq]
mov dstq, [dstq]
%ifidn %1, a
test dstq, mmsize-1
jne int32_to_float_u_int %+ SUFFIX
test srcq, mmsize-1
jne int32_to_float_u_int %+ SUFFIX
%else
int32_to_float_u_int %+ SUFFIX
%endif
add srcq, lenq
add dstq, lenq
neg lenq
mova m2, [flt2pm31]
.next:
%ifidn %1, a
cvtdq2ps m0, [ srcq+lenq]
cvtdq2ps m1, [mmsize + srcq+lenq]
%else
movu m0, [ srcq+lenq]
movu m1, [mmsize + srcq+lenq]
cvtdq2ps m0, m0
cvtdq2ps m1, m1
%endif
mulps m0, m2
mulps m1, m2
mov%1 [ dstq+lenq], m0
mov%1 [mmsize + dstq+lenq], m1
add lenq, 2*mmsize
jl .next
REP_RET
%endmacro
%macro INT16_TO_FLOAT 1
cglobal int16_to_float_%1, 3, 3, 4, dst, src, len
mov srcq, [srcq]
mov dstq, [dstq]
%ifidn %1, a
test dstq, mmsize-1
jne int16_to_float_u_int %+ SUFFIX
test srcq, mmsize-1
jne int16_to_float_u_int %+ SUFFIX
%else
int16_to_float_u_int %+ SUFFIX
%endif
add dstq, lenq
shr lenq, 1
add srcq, lenq
neg lenq
mova m3, [flt2pm31]
.next:
mov%1 m2, [srcq+lenq]
pxor m0, m0
pxor m1, m1
punpcklwd m0, m2
punpckhwd m1, m2
cvtdq2ps m0, m0
cvtdq2ps m1, m1
mulps m0, m3
mulps m1, m3
mov%1 [ dstq+2*lenq], m0
mov%1 [mmsize + dstq+2*lenq], m1
add lenq, mmsize
jl .next
REP_RET
%endmacro
INIT_MMX mmx
INT16_TO_INT32 u
INT16_TO_INT32 a
INIT_XMM sse
INT16_TO_INT32 u
INT16_TO_INT32 a
INIT_XMM sse2
INT32_TO_FLOAT u
INT32_TO_FLOAT a
INT16_TO_FLOAT u
INT16_TO_FLOAT a
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