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- ;*****************************************************************************
- ;* x86-optimized functions for pp7 filter
- ;*
- ;* Copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
- ;*
- ;* This file is part of FFmpeg.
- ;*
- ;* FFmpeg is free software; you can redistribute it and/or modify
- ;* it under the terms of the GNU General Public License as published by
- ;* the Free Software Foundation; either version 2 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 General Public License for more details.
- ;*
- ;* You should have received a copy of the GNU 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
- INIT_MMX mmx
- ;void ff_pp7_dctB_mmx(int16_t *dst, int16_t *src)
- cglobal pp7_dctB, 2, 2, 0, dst, src
- movq m0, [srcq]
- movq m1, [srcq+mmsize*1]
- paddw m0, [srcq+mmsize*6]
- paddw m1, [srcq+mmsize*5]
- movq m2, [srcq+mmsize*2]
- movq m3, [srcq+mmsize*3]
- paddw m2, [srcq+mmsize*4]
- paddw m3, m3
- movq m4, m3
- psubw m3, m0
- paddw m4, m0
- movq m0, m2
- psubw m2, m1
- paddw m0, m1
- movq m1, m4
- psubw m4, m0
- paddw m1, m0
- movq m0, m3
- psubw m3, m2
- psubw m3, m2
- paddw m2, m0
- paddw m2, m0
- movq [dstq], m1
- movq [dstq+mmsize*2], m4
- movq [dstq+mmsize*1], m2
- movq [dstq+mmsize*3], m3
- RET
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