| 1 | ;****************************************************************************** |
| 2 | ;* SIMD-optimized SVQ1 encoder functions |
| 3 | ;* Copyright (c) 2007 Loren Merritt |
| 4 | ;* |
| 5 | ;* This file is part of FFmpeg. |
| 6 | ;* |
| 7 | ;* FFmpeg is free software; you can redistribute it and/or |
| 8 | ;* modify it under the terms of the GNU Lesser General Public |
| 9 | ;* License as published by the Free Software Foundation; either |
| 10 | ;* version 2.1 of the License, or (at your option) any later version. |
| 11 | ;* |
| 12 | ;* FFmpeg is distributed in the hope that it will be useful, |
| 13 | ;* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | ;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | ;* Lesser General Public License for more details. |
| 16 | ;* |
| 17 | ;* You should have received a copy of the GNU Lesser General Public |
| 18 | ;* License along with FFmpeg; if not, write to the Free Software |
| 19 | ;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 20 | ;****************************************************************************** |
| 21 | |
| 22 | %include "libavutil/x86/x86util.asm" |
| 23 | |
| 24 | SECTION_TEXT |
| 25 | |
| 26 | %macro SSD_INT8_VS_INT16 0 |
| 27 | cglobal ssd_int8_vs_int16, 3, 3, 3, pix1, pix2, size |
| 28 | pxor m0, m0 |
| 29 | .loop |
| 30 | sub sizeq, 8 |
| 31 | movq m1, [pix1q + sizeq] |
| 32 | movu m2, [pix2q + sizeq*2] |
| 33 | %if mmsize == 8 |
| 34 | movq m3, [pix2q + sizeq*2 + mmsize] |
| 35 | punpckhbw m4, m1 |
| 36 | punpcklbw m1, m1 |
| 37 | psraw m4, 8 |
| 38 | psraw m1, 8 |
| 39 | psubw m3, m4 |
| 40 | psubw m2, m1 |
| 41 | pmaddwd m3, m3 |
| 42 | pmaddwd m2, m2 |
| 43 | paddd m0, m3 |
| 44 | paddd m0, m2 |
| 45 | %else |
| 46 | punpcklbw m1, m1 |
| 47 | psraw m1, 8 |
| 48 | psubw m2, m1 |
| 49 | pmaddwd m2, m2 |
| 50 | paddd m0, m2 |
| 51 | %endif |
| 52 | jg .loop |
| 53 | HADDD m0, m1 |
| 54 | movd eax, m0 |
| 55 | RET |
| 56 | %endmacro |
| 57 | |
| 58 | INIT_MMX mmx |
| 59 | SSD_INT8_VS_INT16 |
| 60 | INIT_XMM sse2 |
| 61 | SSD_INT8_VS_INT16 |