;******************************************************************************
;* SIMD optimized DSP functions for G722 coding
;*
;* Copyright (c) 2014 James Almer
;*
;* 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_RODATA
pw_qmf_coeffs: dw 3, -210, -11, -805, -11, 951, 53, 3876
pw_qmf_coeffs2: dw 12, 3876, -156, 951, 32, -805, 362, -210
pw_qmf_coeffs3: dw 362, 0 , 32, 0, -156, 0, 12, 0
pw_qmf_coeffs4: dw 53, 0, -11, 0, -11, 0, 3, 0
SECTION .text
INIT_XMM sse2
cglobal g722_apply_qmf, 2, 2, 5, prev, out
movu m0, [prevq+mmsize*0]
movu m1, [prevq+mmsize*1]
movu m2, [prevq+mmsize*2]
punpcklwd m3, m0, m1
punpckhwd m0, m1
punpcklwd m4, m2, m2
punpckhwd m2, m2
pmaddwd m3, [pw_qmf_coeffs ]
pmaddwd m0, [pw_qmf_coeffs2]
pmaddwd m4, [pw_qmf_coeffs3]
pmaddwd m2, [pw_qmf_coeffs4]
paddd m0, m3
paddd m2, m4
paddd m0, m2
pshufd m2, m0, q0032
paddd m0, m2
pshufd m0, m0, q0001
movq [outq], m0
RET