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308 lines
7.3 KiB
NASM
Executable File
308 lines
7.3 KiB
NASM
Executable File
;******************************************************************************
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;* x86 optimized discrete wavelet trasnform
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;* Copyright (c) 2010 David Conrad
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;*
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;* This file is part of FFmpeg.
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;*
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;* FFmpeg is free software; you can redistribute it and/or
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;* modify it under the terms of the GNU Lesser General Public
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;* License as published by the Free Software Foundation; either
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;* version 2.1 of the License, or (at your option) any later version.
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;*
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;* FFmpeg is distributed in the hope that it will be useful,
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;* but WITHOUT ANY WARRANTY; without even the implied warranty of
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;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;* Lesser General Public License for more details.
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;*
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;* You should have received a copy of the GNU Lesser General Public
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;* License along with FFmpeg; if not, write to the Free Software
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;* 51, Inc., Foundation Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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;******************************************************************************
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%include "libavutil/x86/x86util.asm"
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SECTION_RODATA
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pw_1991: times 4 dw 9,-1
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cextern pw_1
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cextern pw_2
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cextern pw_8
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cextern pw_16
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SECTION .text
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; %1 -= (%2 + %3 + 2)>>2 %4 is pw_2
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%macro COMPOSE_53iL0 4
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paddw %2, %3
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paddw %2, %4
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psraw %2, 2
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psubw %1, %2
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%endm
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; m1 = %1 + (-m0 + 9*m1 + 9*%2 -%3 + 8)>>4
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; if %4 is supplied, %1 is loaded unaligned from there
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; m2: clobbered m3: pw_8 m4: pw_1991
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%macro COMPOSE_DD97iH0 3-4
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paddw m0, %3
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paddw m1, %2
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psubw m0, m3
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mova m2, m1
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punpcklwd m1, m0
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punpckhwd m2, m0
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pmaddwd m1, m4
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pmaddwd m2, m4
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%if %0 > 3
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movu %1, %4
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%endif
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psrad m1, 4
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psrad m2, 4
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packssdw m1, m2
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paddw m1, %1
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%endm
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%macro COMPOSE_VERTICAL 1
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; void vertical_compose53iL0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2,
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; int width)
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cglobal vertical_compose53iL0_%1, 4,4,1, b0, b1, b2, width
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mova m2, [pw_2]
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%if ARCH_X86_64
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mov widthd, widthd
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%endif
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.loop:
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sub widthq, mmsize/2
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mova m1, [b0q+2*widthq]
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mova m0, [b1q+2*widthq]
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COMPOSE_53iL0 m0, m1, [b2q+2*widthq], m2
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mova [b1q+2*widthq], m0
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jg .loop
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REP_RET
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; void vertical_compose_dirac53iH0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2,
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; int width)
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cglobal vertical_compose_dirac53iH0_%1, 4,4,1, b0, b1, b2, width
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mova m1, [pw_1]
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%if ARCH_X86_64
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mov widthd, widthd
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%endif
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.loop:
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sub widthq, mmsize/2
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mova m0, [b0q+2*widthq]
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paddw m0, [b2q+2*widthq]
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paddw m0, m1
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psraw m0, 1
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paddw m0, [b1q+2*widthq]
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mova [b1q+2*widthq], m0
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jg .loop
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REP_RET
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; void vertical_compose_dd97iH0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2,
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; IDWTELEM *b3, IDWTELEM *b4, int width)
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cglobal vertical_compose_dd97iH0_%1, 6,6,5, b0, b1, b2, b3, b4, width
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mova m3, [pw_8]
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mova m4, [pw_1991]
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%if ARCH_X86_64
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mov widthd, widthd
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%endif
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.loop:
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sub widthq, mmsize/2
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mova m0, [b0q+2*widthq]
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mova m1, [b1q+2*widthq]
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COMPOSE_DD97iH0 [b2q+2*widthq], [b3q+2*widthq], [b4q+2*widthq]
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mova [b2q+2*widthq], m1
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jg .loop
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REP_RET
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; void vertical_compose_dd137iL0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2,
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; IDWTELEM *b3, IDWTELEM *b4, int width)
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cglobal vertical_compose_dd137iL0_%1, 6,6,6, b0, b1, b2, b3, b4, width
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mova m3, [pw_16]
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mova m4, [pw_1991]
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%if ARCH_X86_64
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mov widthd, widthd
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%endif
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.loop:
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sub widthq, mmsize/2
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mova m0, [b0q+2*widthq]
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mova m1, [b1q+2*widthq]
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mova m5, [b2q+2*widthq]
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paddw m0, [b4q+2*widthq]
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paddw m1, [b3q+2*widthq]
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psubw m0, m3
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mova m2, m1
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punpcklwd m1, m0
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punpckhwd m2, m0
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pmaddwd m1, m4
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pmaddwd m2, m4
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psrad m1, 5
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psrad m2, 5
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packssdw m1, m2
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psubw m5, m1
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mova [b2q+2*widthq], m5
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jg .loop
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REP_RET
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; void vertical_compose_haar(IDWTELEM *b0, IDWTELEM *b1, int width)
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cglobal vertical_compose_haar_%1, 3,4,3, b0, b1, width
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mova m3, [pw_1]
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%if ARCH_X86_64
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mov widthd, widthd
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%endif
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.loop:
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sub widthq, mmsize/2
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mova m1, [b1q+2*widthq]
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mova m0, [b0q+2*widthq]
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mova m2, m1
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paddw m1, m3
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psraw m1, 1
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psubw m0, m1
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mova [b0q+2*widthq], m0
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paddw m2, m0
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mova [b1q+2*widthq], m2
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jg .loop
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REP_RET
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%endmacro
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; extend the left and right edges of the tmp array by %1 and %2 respectively
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%macro EDGE_EXTENSION 3
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mov %3, [tmpq]
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%assign %%i 1
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%rep %1
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mov [tmpq-2*%%i], %3
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%assign %%i %%i+1
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%endrep
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mov %3, [tmpq+2*w2q-2]
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%assign %%i 0
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%rep %2
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mov [tmpq+2*w2q+2*%%i], %3
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%assign %%i %%i+1
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%endrep
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%endmacro
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%macro HAAR_HORIZONTAL 2
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; void horizontal_compose_haari(IDWTELEM *b, IDWTELEM *tmp, int width)
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cglobal horizontal_compose_haar%2i_%1, 3,6,4, b, tmp, w, x, w2, b_w2
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mov w2d, wd
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xor xq, xq
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shr w2d, 1
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lea b_w2q, [bq+wq]
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mova m3, [pw_1]
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.lowpass_loop:
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movu m1, [b_w2q + 2*xq]
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mova m0, [bq + 2*xq]
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paddw m1, m3
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psraw m1, 1
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psubw m0, m1
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mova [tmpq + 2*xq], m0
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add xq, mmsize/2
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cmp xq, w2q
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jl .lowpass_loop
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xor xq, xq
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and w2q, ~(mmsize/2 - 1)
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cmp w2q, mmsize/2
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jl .end
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.highpass_loop:
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movu m1, [b_w2q + 2*xq]
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mova m0, [tmpq + 2*xq]
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paddw m1, m0
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; shift and interleave
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%if %2 == 1
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paddw m0, m3
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paddw m1, m3
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psraw m0, 1
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psraw m1, 1
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%endif
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mova m2, m0
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punpcklwd m0, m1
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punpckhwd m2, m1
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mova [bq+4*xq], m0
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mova [bq+4*xq+mmsize], m2
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add xq, mmsize/2
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cmp xq, w2q
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jl .highpass_loop
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.end:
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REP_RET
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%endmacro
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INIT_XMM
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; void horizontal_compose_dd97i(IDWTELEM *b, IDWTELEM *tmp, int width)
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cglobal horizontal_compose_dd97i_ssse3, 3,6,8, b, tmp, w, x, w2, b_w2
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mov w2d, wd
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xor xd, xd
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shr w2d, 1
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lea b_w2q, [bq+wq]
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movu m4, [bq+wq]
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mova m7, [pw_2]
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pslldq m4, 14
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.lowpass_loop:
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movu m1, [b_w2q + 2*xq]
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mova m0, [bq + 2*xq]
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mova m2, m1
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palignr m1, m4, 14
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mova m4, m2
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COMPOSE_53iL0 m0, m1, m2, m7
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mova [tmpq + 2*xq], m0
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add xd, mmsize/2
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cmp xd, w2d
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jl .lowpass_loop
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EDGE_EXTENSION 1, 2, xw
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; leave the last up to 7 (sse) or 3 (mmx) values for C
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xor xd, xd
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and w2d, ~(mmsize/2 - 1)
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cmp w2d, mmsize/2
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jl .end
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mova m7, [tmpq-mmsize]
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mova m0, [tmpq]
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mova m5, [pw_1]
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mova m3, [pw_8]
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mova m4, [pw_1991]
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.highpass_loop:
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mova m6, m0
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palignr m0, m7, 14
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mova m7, [tmpq + 2*xq + 16]
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mova m1, m7
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mova m2, m7
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palignr m1, m6, 2
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palignr m2, m6, 4
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COMPOSE_DD97iH0 m0, m6, m2, [b_w2q + 2*xq]
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mova m0, m7
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mova m7, m6
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; shift and interleave
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paddw m6, m5
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paddw m1, m5
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psraw m6, 1
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psraw m1, 1
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mova m2, m6
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punpcklwd m6, m1
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punpckhwd m2, m1
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mova [bq+4*xq], m6
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mova [bq+4*xq+mmsize], m2
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add xd, mmsize/2
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cmp xd, w2d
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jl .highpass_loop
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.end:
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REP_RET
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%if ARCH_X86_64 == 0
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INIT_MMX
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COMPOSE_VERTICAL mmx
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HAAR_HORIZONTAL mmx, 0
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HAAR_HORIZONTAL mmx, 1
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%endif
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;;INIT_XMM
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INIT_XMM
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COMPOSE_VERTICAL sse2
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HAAR_HORIZONTAL sse2, 0
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HAAR_HORIZONTAL sse2, 1
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