| ;***************************************************************************** | |
| ;* x86-optimized functions for pp7 filter | |
| ;* | |
| ;* Copyright (c) 2005 Michael Niedermayer <[email protected]> | |
| ;* | |
| ;* 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 | |