path: root/libavresample/x86/audio_convert.asm

;******************************************************************************
;* x86 optimized Format Conversion Utils
;* Copyright (c) 2008 Loren Merritt
;* Copyright (c) 2012 Justin Ruggles <justin.ruggles@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 "x86inc.asm"
%include "x86util.asm"
%include "util.asm"

SECTION_RODATA 32

pf_s32_inv_scale: times 8 dd 0x30000000
pf_s32_scale:     times 8 dd 0x4f000000
pf_s16_inv_scale: times 4 dd 0x38000000
pf_s16_scale:     times 4 dd 0x47000000
pb_shuf_unpack_even:      db -1, -1,  0,  1, -1, -1,  2,  3, -1, -1,  8,  9, -1, -1, 10, 11
pb_shuf_unpack_odd:       db -1, -1,  4,  5, -1, -1,  6,  7, -1, -1, 12, 13, -1, -1, 14, 15

SECTION_TEXT

;------------------------------------------------------------------------------
; void ff_conv_s16_to_s32(int32_t *dst, const int16_t *src, int len);
;------------------------------------------------------------------------------

INIT_XMM sse2
cglobal conv_s16_to_s32, 3,3,3, dst, src, len
    lea      lenq, [2*lend]
    lea      dstq, [dstq+2*lenq]
    add      srcq, lenq
    neg      lenq
.loop:
    mova       m2, [srcq+lenq]
    pxor       m0, m0
    pxor       m1, m1
    punpcklwd  m0, m2
    punpckhwd  m1, m2
    mova  [dstq+2*lenq       ], m0
    mova  [dstq+2*lenq+mmsize], m1
    add      lenq, mmsize
    jl .loop
    REP_RET

;------------------------------------------------------------------------------
; void ff_conv_s16_to_flt(float *dst, const int16_t *src, int len);
;------------------------------------------------------------------------------

%macro CONV_S16_TO_FLT 0
cglobal conv_s16_to_flt, 3,3,3, dst, src, len
    lea      lenq, [2*lend]
    add      srcq, lenq
    lea      dstq, [dstq + 2*lenq]
    neg      lenq
    mova       m2, [pf_s16_inv_scale]
    ALIGN 16
.loop:
    mova       m0, [srcq+lenq]
    S16_TO_S32_SX 0, 1
    cvtdq2ps   m0, m0
    cvtdq2ps   m1, m1
    mulps      m0, m2
    mulps      m1, m2
    mova  [dstq+2*lenq       ], m0
    mova  [dstq+2*lenq+mmsize], m1
    add      lenq, mmsize
    jl .loop
    REP_RET
%endmacro

INIT_XMM sse2
CONV_S16_TO_FLT
INIT_XMM sse4
CONV_S16_TO_FLT

;------------------------------------------------------------------------------
; void ff_conv_s32_to_s16(int16_t *dst, const int32_t *src, int len);
;------------------------------------------------------------------------------

%macro CONV_S32_TO_S16 0
cglobal conv_s32_to_s16, 3,3,4, dst, src, len
    lea     lenq, [2*lend]
    lea     srcq, [srcq+2*lenq]
    add     dstq, lenq
    neg     lenq
.loop:
    mova      m0, [srcq+2*lenq         ]
    mova      m1, [srcq+2*lenq+  mmsize]
    mova      m2, [srcq+2*lenq+2*mmsize]
    mova      m3, [srcq+2*lenq+3*mmsize]
    psrad     m0, 16
    psrad     m1, 16
    psrad     m2, 16
    psrad     m3, 16
    packssdw  m0, m1
    packssdw  m2, m3
    mova  [dstq+lenq       ], m0
    mova  [dstq+lenq+mmsize], m2
    add     lenq, mmsize*2
    jl .loop
%if mmsize == 8
    emms
    RET
%else
    REP_RET
%endif
%endmacro

INIT_MMX mmx
CONV_S32_TO_S16
INIT_XMM sse2
CONV_S32_TO_S16

;------------------------------------------------------------------------------
; void ff_conv_s32_to_flt(float *dst, const int32_t *src, int len);
;------------------------------------------------------------------------------

%macro CONV_S32_TO_FLT 0
cglobal conv_s32_to_flt, 3,3,3, dst, src, len
    lea     lenq, [4*lend]
    add     srcq, lenq
    add     dstq, lenq
    neg     lenq
    mova      m0, [pf_s32_inv_scale]
    ALIGN 16
.loop:
    cvtdq2ps  m1, [srcq+lenq       ]
    cvtdq2ps  m2, [srcq+lenq+mmsize]
    mulps     m1, m1, m0
    mulps     m2, m2, m0
    mova  [dstq+lenq       ], m1
    mova  [dstq+lenq+mmsize], m2
    add     lenq, mmsize*2
    jl .loop
    REP_RET
%endmacro

INIT_XMM sse2
CONV_S32_TO_FLT
%if HAVE_AVX
INIT_YMM avx
CONV_S32_TO_FLT
%endif

;------------------------------------------------------------------------------
; void ff_conv_flt_to_s16(int16_t *dst, const float *src, int len);
;------------------------------------------------------------------------------

INIT_XMM sse2
cglobal conv_flt_to_s16, 3,3,5, dst, src, len
    lea     lenq, [2*lend]
    lea     srcq, [srcq+2*lenq]
    add     dstq, lenq
    neg     lenq
    mova      m4, [pf_s16_scale]
.loop:
    mova      m0, [srcq+2*lenq         ]
    mova      m1, [srcq+2*lenq+1*mmsize]
    mova      m2, [srcq+2*lenq+2*mmsize]
    mova      m3, [srcq+2*lenq+3*mmsize]
    mulps     m0, m4
    mulps     m1, m4
    mulps     m2, m4
    mulps     m3, m4
    cvtps2dq  m0, m0
    cvtps2dq  m1, m1
    cvtps2dq  m2, m2
    cvtps2dq  m3, m3
    packssdw  m0, m1
    packssdw  m2, m3
    mova  [dstq+lenq       ], m0
    mova  [dstq+lenq+mmsize], m2
    add     lenq, mmsize*2
    jl .loop
    REP_RET

;------------------------------------------------------------------------------
; void ff_conv_flt_to_s32(int32_t *dst, const float *src, int len);
;------------------------------------------------------------------------------

%macro CONV_FLT_TO_S32 0
cglobal conv_flt_to_s32, 3,3,5, dst, src, len
    lea     lenq, [lend*4]
    add     srcq, lenq
    add     dstq, lenq
    neg     lenq
    mova      m4, [pf_s32_scale]
.loop:
    mulps     m0, m4, [srcq+lenq         ]
    mulps     m1, m4, [srcq+lenq+1*mmsize]
    mulps     m2, m4, [srcq+lenq+2*mmsize]
    mulps     m3, m4, [srcq+lenq+3*mmsize]
    cvtps2dq  m0, m0
    cvtps2dq  m1, m1
    cvtps2dq  m2, m2
    cvtps2dq  m3, m3
    mova  [dstq+lenq         ], m0
    mova  [dstq+lenq+1*mmsize], m1
    mova  [dstq+lenq+2*mmsize], m2
    mova  [dstq+lenq+3*mmsize], m3
    add     lenq, mmsize*4
    jl .loop
    REP_RET
%endmacro

INIT_XMM sse2
CONV_FLT_TO_S32
%if HAVE_AVX
INIT_YMM avx
CONV_FLT_TO_S32
%endif

;------------------------------------------------------------------------------
; void ff_conv_s16p_to_s16_2ch(int16_t *dst, int16_t *const *src, int len,
;                              int channels);
;------------------------------------------------------------------------------

%macro CONV_S16P_TO_S16_2CH 0
cglobal conv_s16p_to_s16_2ch, 3,4,5, dst, src0, len, src1
    mov       src1q, [src0q+gprsize]
    mov       src0q, [src0q        ]
    lea        lenq, [2*lend]
    add       src0q, lenq
    add       src1q, lenq
    lea        dstq, [dstq+2*lenq]
    neg        lenq
.loop
    mova         m0, [src0q+lenq       ]
    mova         m1, [src1q+lenq       ]
    mova         m2, [src0q+lenq+mmsize]
    mova         m3, [src1q+lenq+mmsize]
    SBUTTERFLY2  wd, 0, 1, 4
    SBUTTERFLY2  wd, 2, 3, 4
    mova  [dstq+2*lenq+0*mmsize], m0
    mova  [dstq+2*lenq+1*mmsize], m1
    mova  [dstq+2*lenq+2*mmsize], m2
    mova  [dstq+2*lenq+3*mmsize], m3
    add        lenq, 2*mmsize
    jl .loop
    REP_RET
%endmacro

INIT_XMM sse2
CONV_S16P_TO_S16_2CH
%if HAVE_AVX
INIT_XMM avx
CONV_S16P_TO_S16_2CH
%endif

;------------------------------------------------------------------------------
; void ff_conv_s16p_to_s16_6ch(int16_t *dst, int16_t *const *src, int len,
;                              int channels);
;------------------------------------------------------------------------------

;------------------------------------------------------------------------------
; NOTE: In the 6-channel functions, len could be used as an index on x86-64
;       instead of just a counter, which would avoid incrementing the
;       pointers, but the extra complexity and amount of code is not worth
;       the small gain. On x86-32 there are not enough registers to use len
;       as an index without keeping two of the pointers on the stack and
;       loading them in each iteration.
;------------------------------------------------------------------------------

%macro CONV_S16P_TO_S16_6CH 0
%if ARCH_X86_64
cglobal conv_s16p_to_s16_6ch, 3,8,7, dst, src0, len, src1, src2, src3, src4, src5
%else
cglobal conv_s16p_to_s16_6ch, 2,7,7, dst, src0, src1, src2, src3, src4, src5
%define lend dword r2m
%endif
    mov      src1q, [src0q+1*gprsize]
    mov      src2q, [src0q+2*gprsize]
    mov      src3q, [src0q+3*gprsize]
    mov      src4q, [src0q+4*gprsize]
    mov      src5q, [src0q+5*gprsize]
    mov      src0q, [src0q]
    sub      src1q, src0q
    sub      src2q, src0q
    sub      src3q, src0q
    sub      src4q, src0q
    sub      src5q, src0q
.loop:
%if cpuflag(sse2slow)
    movq        m0, [src0q      ]   ; m0 =  0,  6, 12, 18,  x,  x,  x,  x
    movq        m1, [src0q+src1q]   ; m1 =  1,  7, 13, 19,  x,  x,  x,  x
    movq        m2, [src0q+src2q]   ; m2 =  2,  8, 14, 20,  x,  x,  x,  x
    movq        m3, [src0q+src3q]   ; m3 =  3,  9, 15, 21,  x,  x,  x,  x
    movq        m4, [src0q+src4q]   ; m4 =  4, 10, 16, 22,  x,  x,  x,  x
    movq        m5, [src0q+src5q]   ; m5 =  5, 11, 17, 23,  x,  x,  x,  x
                                    ; unpack words:
    punpcklwd   m0, m1              ; m0 =  0,  1,  6,  7, 12, 13, 18, 19
    punpcklwd   m2, m3              ; m2 =  4,  5, 10, 11, 16, 17, 22, 23
    punpcklwd   m4, m5              ; m4 =  2,  3,  8,  9, 14, 15, 20, 21
                                    ; blend dwords
    shufps      m1, m0, m2, q2020   ; m1 =  0,  1, 12, 13,  2,  3, 14, 15
    shufps      m0, m4, q2031       ; m0 =  6,  7, 18, 19,  4,  5, 16, 17
    shufps      m2, m4, q3131       ; m2 =  8,  9, 20, 21, 10, 11, 22, 23
                                    ; shuffle dwords
    pshufd      m0, m0, q1302       ; m0 =  4,  5,  6,  7, 16, 17, 18, 19
    pshufd      m1, m1, q3120       ; m1 =  0,  1,  2,  3, 12, 13, 14, 15
    pshufd      m2, m2, q3120       ; m2 =  8,  9, 10, 11, 20, 21, 22, 23
    movq   [dstq+0*mmsize/2], m1
    movq   [dstq+1*mmsize/2], m0
    movq   [dstq+2*mmsize/2], m2
    movhps [dstq+3*mmsize/2], m1
    movhps [dstq+4*mmsize/2], m0
    movhps [dstq+5*mmsize/2], m2
    add      src0q, mmsize/2
    add       dstq, mmsize*3
    sub       lend, mmsize/4
%else
    mova        m0, [src0q      ]   ; m0 =  0,  6, 12, 18, 24, 30, 36, 42
    mova        m1, [src0q+src1q]   ; m1 =  1,  7, 13, 19, 25, 31, 37, 43
    mova        m2, [src0q+src2q]   ; m2 =  2,  8, 14, 20, 26, 32, 38, 44
    mova        m3, [src0q+src3q]   ; m3 =  3,  9, 15, 21, 27, 33, 39, 45
    mova        m4, [src0q+src4q]   ; m4 =  4, 10, 16, 22, 28, 34, 40, 46
    mova        m5, [src0q+src5q]   ; m5 =  5, 11, 17, 23, 29, 35, 41, 47
                                    ; unpack words:
    SBUTTERFLY2 wd, 0, 1, 6         ; m0 =  0,  1,  6,  7, 12, 13, 18, 19
                                    ; m1 = 24, 25, 30, 31, 36, 37, 42, 43
    SBUTTERFLY2 wd, 2, 3, 6         ; m2 =  2,  3,  8,  9, 14, 15, 20, 21
                                    ; m3 = 26, 27, 32, 33, 38, 39, 44, 45
    SBUTTERFLY2 wd, 4, 5, 6         ; m4 =  4,  5, 10, 11, 16, 17, 22, 23
                                    ; m5 = 28, 29, 34, 35, 40, 41, 46, 47
                                    ; blend dwords
    shufps      m6, m0, m2, q2020   ; m6 =  0,  1, 12, 13,  2,  3, 14, 15
    shufps      m0, m4, q2031       ; m0 =  6,  7, 18, 19,  4,  5, 16, 17
    shufps      m2, m4, q3131       ; m2 =  8,  9, 20, 21, 10, 11, 22, 23
    SWAP 4,6                        ; m4 =  0,  1, 12, 13,  2,  3, 14, 15
    shufps      m6, m1, m3, q2020   ; m6 = 24, 25, 36, 37, 26, 27, 38, 39
    shufps      m1, m5, q2031       ; m1 = 30, 31, 42, 43, 28, 29, 40, 41
    shufps      m3, m5, q3131       ; m3 = 32, 33, 44, 45, 34, 35, 46, 47
    SWAP 5,6                        ; m5 = 24, 25, 36, 37, 26, 27, 38, 39
                                    ; shuffle dwords
    pshufd      m0, m0, q1302       ; m0 =  4,  5,  6,  7, 16, 17, 18, 19
    pshufd      m2, m2, q3120       ; m2 =  8,  9, 10, 11, 20, 21, 22, 23
    pshufd      m4, m4, q3120       ; m4 =  0,  1,  2,  3, 12, 13, 14, 15
    pshufd      m1, m1, q1302       ; m1 = 28, 29, 30, 31, 40, 41, 42, 43
    pshufd      m3, m3, q3120       ; m3 = 32, 33, 34, 35, 44, 45, 46, 47
    pshufd      m5, m5, q3120       ; m5 = 24, 25, 26, 27, 36, 37, 38, 39
                                    ; shuffle qwords
    punpcklqdq  m6, m4, m0          ; m6 =  0,  1,  2,  3,  4,  5,  6,  7
    punpckhqdq  m0, m2              ; m0 = 16, 17, 18, 19, 20, 21, 22, 23
    shufps      m2, m4, q3210       ; m2 =  8,  9, 10, 11, 12, 13, 14, 15
    SWAP 4,6                        ; m4 =  0,  1,  2,  3,  4,  5,  6,  7
    punpcklqdq  m6, m5, m1          ; m6 = 24, 25, 26, 27, 28, 29, 30, 31
    punpckhqdq  m1, m3              ; m1 = 40, 41, 42, 43, 44, 45, 46, 47
    shufps      m3, m5, q3210       ; m3 = 32, 33, 34, 35, 36, 37, 38, 39
    SWAP 5,6                        ; m5 = 24, 25, 26, 27, 28, 29, 30, 31
    mova   [dstq+0*mmsize], m4
    mova   [dstq+1*mmsize], m2
    mova   [dstq+2*mmsize], m0
    mova   [dstq+3*mmsize], m5
    mova   [dstq+4*mmsize], m3
    mova   [dstq+5*mmsize], m1
    add      src0q, mmsize
    add       dstq, mmsize*6
    sub       lend, mmsize/2
%endif
    jg .loop
    REP_RET
%endmacro

INIT_XMM sse2
CONV_S16P_TO_S16_6CH
INIT_XMM sse2slow
CONV_S16P_TO_S16_6CH
%if HAVE_AVX
INIT_XMM avx
CONV_S16P_TO_S16_6CH
%endif

;------------------------------------------------------------------------------
; void ff_conv_s16p_to_flt_2ch(float *dst, int16_t *const *src, int len,
;                              int channels);
;------------------------------------------------------------------------------

%macro CONV_S16P_TO_FLT_2CH 0
cglobal conv_s16p_to_flt_2ch, 3,4,6, dst, src0, len, src1
    lea       lenq, [2*lend]
    mov      src1q, [src0q+gprsize]
    mov      src0q, [src0q        ]
    lea       dstq, [dstq+4*lenq]
    add      src0q, lenq
    add      src1q, lenq
    neg       lenq
    mova        m5, [pf_s32_inv_scale]
.loop:
    mova        m2, [src0q+lenq]    ; m2 =  0,  2,  4,  6,  8, 10, 12, 14
    mova        m4, [src1q+lenq]    ; m4 =  1,  3,  5,  7,  9, 11, 13, 15
    SBUTTERFLY2 wd, 2, 4, 3         ; m2 =  0,  1,  2,  3,  4,  5,  6,  7
                                    ; m4 =  8,  9, 10, 11, 12, 13, 14, 15
    pxor        m3, m3
    punpcklwd   m0, m3, m2          ; m0 =      0,      1,      2,      3
    punpckhwd   m1, m3, m2          ; m1 =      4,      5,      6,      7
    punpcklwd   m2, m3, m4          ; m2 =      8,      9,     10,     11
    punpckhwd   m3, m4              ; m3 =     12,     13,     14,     15
    cvtdq2ps    m0, m0
    cvtdq2ps    m1, m1
    cvtdq2ps    m2, m2
    cvtdq2ps    m3, m3
    mulps       m0, m5
    mulps       m1, m5
    mulps       m2, m5
    mulps       m3, m5
    mova  [dstq+4*lenq         ], m0
    mova  [dstq+4*lenq+  mmsize], m1
    mova  [dstq+4*lenq+2*mmsize], m2
    mova  [dstq+4*lenq+3*mmsize], m3
    add       lenq, mmsize
    jl .loop
    REP_RET
%endmacro

INIT_XMM sse2
CONV_S16P_TO_FLT_2CH
%if HAVE_AVX
INIT_XMM avx
CONV_S16P_TO_FLT_2CH
%endif

;------------------------------------------------------------------------------
; void ff_conv_s16p_to_flt_6ch(float *dst, int16_t *const *src, int len,
;                              int channels);
;------------------------------------------------------------------------------

%macro CONV_S16P_TO_FLT_6CH 0
%if ARCH_X86_64
cglobal conv_s16p_to_flt_6ch, 3,8,8, dst, src, len, src1, src2, src3, src4, src5
%else
cglobal conv_s16p_to_flt_6ch, 2,7,8, dst, src, src1, src2, src3, src4, src5
%define lend dword r2m
%endif
    mov     src1q, [srcq+1*gprsize]
    mov     src2q, [srcq+2*gprsize]
    mov     src3q, [srcq+3*gprsize]
    mov     src4q, [srcq+4*gprsize]
    mov     src5q, [srcq+5*gprsize]
    mov      srcq, [srcq]
    sub     src1q, srcq
    sub     src2q, srcq
    sub     src3q, srcq
    sub     src4q, srcq
    sub     src5q, srcq
    mova       m7, [pf_s32_inv_scale]
%if cpuflag(ssse3)
    %define unpack_even m6
    mova       m6, [pb_shuf_unpack_even]
%if ARCH_X86_64
    %define unpack_odd m8
    mova       m8, [pb_shuf_unpack_odd]
%else
    %define unpack_odd [pb_shuf_unpack_odd]
%endif
%endif
.loop:
    movq       m0, [srcq      ]  ; m0 =  0,  6, 12, 18,  x,  x,  x,  x
    movq       m1, [srcq+src1q]  ; m1 =  1,  7, 13, 19,  x,  x,  x,  x
    movq       m2, [srcq+src2q]  ; m2 =  2,  8, 14, 20,  x,  x,  x,  x
    movq       m3, [srcq+src3q]  ; m3 =  3,  9, 15, 21,  x,  x,  x,  x
    movq       m4, [srcq+src4q]  ; m4 =  4, 10, 16, 22,  x,  x,  x,  x
    movq       m5, [srcq+src5q]  ; m5 =  5, 11, 17, 23,  x,  x,  x,  x
                                 ; unpack words:
    punpcklwd  m0, m1            ; m0 =  0,  1,  6,  7, 12, 13, 18, 19
    punpcklwd  m2, m3            ; m2 =  2,  3,  8,  9, 14, 15, 20, 21
    punpcklwd  m4, m5            ; m4 =  4,  5, 10, 11, 16, 17, 22, 23
                                 ; blend dwords
    shufps     m1, m4, m0, q3120 ; m1 =  4,  5, 16, 17,  6,  7, 18, 19
    shufps         m0, m2, q2020 ; m0 =  0,  1, 12, 13,  2,  3, 14, 15
    shufps         m2, m4, q3131 ; m2 =  8,  9, 20, 21, 10, 11, 22, 23
%if cpuflag(ssse3)
    pshufb     m3, m0, unpack_odd   ; m3 =  12,     13,     14,     15
    pshufb         m0, unpack_even  ; m0 =   0,      1,      2,      3
    pshufb     m4, m1, unpack_odd   ; m4 =  16,     17,     18,     19
    pshufb         m1, unpack_even  ; m1 =   4,      5,      6,      7
    pshufb     m5, m2, unpack_odd   ; m5 =  20,     21,     22,     23
    pshufb         m2, unpack_even  ; m2 =   8,      9,     10,     11
%else
                                 ; shuffle dwords
    pshufd     m0, m0, q3120     ; m0 =  0,  1,  2,  3, 12, 13, 14, 15
    pshufd     m1, m1, q3120     ; m1 =  4,  5,  6,  7, 16, 17, 18, 19
    pshufd     m2, m2, q3120     ; m2 =  8,  9, 10, 11, 20, 21, 22, 23
    pxor       m6, m6            ; convert s16 in m0-m2 to s32 in m0-m5
    punpcklwd  m3, m6, m0        ; m3 =      0,      1,      2,      3
    punpckhwd  m4, m6, m0        ; m4 =     12,     13,     14,     15
    punpcklwd  m0, m6, m1        ; m0 =      4,      5,      6,      7
    punpckhwd  m5, m6, m1        ; m5 =     16,     17,     18,     19
    punpcklwd  m1, m6, m2        ; m1 =      8,      9,     10,     11
    punpckhwd      m6, m2        ; m6 =     20,     21,     22,     23
    SWAP 6,2,1,0,3,4,5           ; swap registers 3,0,1,4,5,6 to 0,1,2,3,4,5
%endif
    cvtdq2ps   m0, m0            ; convert s32 to float
    cvtdq2ps   m1, m1
    cvtdq2ps   m2, m2
    cvtdq2ps   m3, m3
    cvtdq2ps   m4, m4
    cvtdq2ps   m5, m5
    mulps      m0, m7            ; scale float from s32 range to [-1.0,1.0]
    mulps      m1, m7
    mulps      m2, m7
    mulps      m3, m7
    mulps      m4, m7
    mulps      m5, m7
    mova  [dstq         ], m0
    mova  [dstq+  mmsize], m1
    mova  [dstq+2*mmsize], m2
    mova  [dstq+3*mmsize], m3
    mova  [dstq+4*mmsize], m4
    mova  [dstq+5*mmsize], m5
    add      srcq, mmsize/2
    add      dstq, mmsize*6
    sub      lend, mmsize/4
    jg .loop
    REP_RET
%endmacro

INIT_XMM sse2
CONV_S16P_TO_FLT_6CH
INIT_XMM ssse3
CONV_S16P_TO_FLT_6CH
%if HAVE_AVX
INIT_XMM avx
CONV_S16P_TO_FLT_6CH
%endif

;-----------------------------------------------------------------------------
; void ff_conv_fltp_to_flt_6ch(float *dst, float *const *src, int len,
;                              int channels);
;-----------------------------------------------------------------------------

%macro CONV_FLTP_TO_FLT_6CH 0
cglobal conv_fltp_to_flt_6ch, 2,8,7, dst, src, src1, src2, src3, src4, src5, len
%if ARCH_X86_64
    mov     lend, r2d
%else
    %define lend dword r2m
%endif
    mov    src1q, [srcq+1*gprsize]
    mov    src2q, [srcq+2*gprsize]
    mov    src3q, [srcq+3*gprsize]
    mov    src4q, [srcq+4*gprsize]
    mov    src5q, [srcq+5*gprsize]
    mov     srcq, [srcq]
    sub    src1q, srcq
    sub    src2q, srcq
    sub    src3q, srcq
    sub    src4q, srcq
    sub    src5q, srcq
.loop:
    mova      m0, [srcq      ]
    mova      m1, [srcq+src1q]
    mova      m2, [srcq+src2q]
    mova      m3, [srcq+src3q]
    mova      m4, [srcq+src4q]
    mova      m5, [srcq+src5q]
%if cpuflag(sse4)
    SBUTTERFLYPS 0, 1, 6
    SBUTTERFLYPS 2, 3, 6
    SBUTTERFLYPS 4, 5, 6

    blendps   m6, m4, m0, 1100b
    movlhps   m0, m2
    movhlps   m4, m2
    blendps   m2, m5, m1, 1100b
    movlhps   m1, m3
    movhlps   m5, m3

    movaps [dstq   ], m0
    movaps [dstq+16], m6
    movaps [dstq+32], m4
    movaps [dstq+48], m1
    movaps [dstq+64], m2
    movaps [dstq+80], m5
%else ; mmx
    SBUTTERFLY dq, 0, 1, 6
    SBUTTERFLY dq, 2, 3, 6
    SBUTTERFLY dq, 4, 5, 6

    movq   [dstq   ], m0
    movq   [dstq+ 8], m2
    movq   [dstq+16], m4
    movq   [dstq+24], m1
    movq   [dstq+32], m3
    movq   [dstq+40], m5
%endif
    add      srcq, mmsize
    add      dstq, mmsize*6
    sub      lend, mmsize/4
    jg .loop
%if mmsize == 8
    emms
    RET
%else
    REP_RET
%endif
%endmacro

INIT_MMX mmx
CONV_FLTP_TO_FLT_6CH
INIT_XMM sse4
CONV_FLTP_TO_FLT_6CH
%if HAVE_AVX
INIT_XMM avx
CONV_FLTP_TO_FLT_6CH
%endif