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;******************************************************************************
;* X86 Optimized functions for Open Exr Decoder
;* Copyright (c) 2006 Industrial Light & Magic, a division of Lucas Digital Ltd. LLC
;*
;* reorder_pixels based on patch by John Loy
;* port to ASM by Jokyo Images support by CNC - French National Center for Cinema
;*
;* 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/x86util.asm"
SECTION .text
;------------------------------------------------------------------------------
; void ff_reorder_pixels(uint8_t *dst, const uint8_t *src, ptrdiff_t size);
;------------------------------------------------------------------------------
%macro REORDER_PIXELS 0
cglobal reorder_pixels, 3,4,3, dst, src1, size, src2
lea src2q, [src1q+sizeq] ; src2 = src + 2 * half_size
add dstq, sizeq ; dst offset by size
shr sizeq, 1 ; half_size
add src1q, sizeq ; offset src by half_size
neg sizeq ; size = offset for dst, src1, src2
.loop:
mova m0, [src1q+sizeq] ; load first part
movu m1, [src2q+sizeq] ; load second part
SBUTTERFLY bw, 0, 1, 2 ; interleaved
mova [dstq+2*sizeq ], xm0 ; copy to dst
mova [dstq+2*sizeq+16], xm1
%if cpuflag(avx2)
vperm2i128 m0, m0, m1, q0301
mova [dstq+2*sizeq+32], m0
%endif
add sizeq, mmsize
jl .loop
RET
%endmacro
INIT_XMM sse2
REORDER_PIXELS
%if HAVE_AVX2_EXTERNAL
INIT_YMM avx2
REORDER_PIXELS
%endif
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