| 1 | ;****************************************************************************** |
| 2 | ;* SIMD-optimized deinterlacing functions |
| 3 | ;* Copyright (c) 2010 Vitor Sessak |
| 4 | ;* Copyright (c) 2002 Michael Niedermayer |
| 5 | ;* |
| 6 | ;* This file is part of FFmpeg. |
| 7 | ;* |
| 8 | ;* FFmpeg is free software; you can redistribute it and/or |
| 9 | ;* modify it under the terms of the GNU Lesser General Public |
| 10 | ;* License as published by the Free Software Foundation; either |
| 11 | ;* version 2.1 of the License, or (at your option) any later version. |
| 12 | ;* |
| 13 | ;* FFmpeg is distributed in the hope that it will be useful, |
| 14 | ;* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | ;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | ;* Lesser General Public License for more details. |
| 17 | ;* |
| 18 | ;* You should have received a copy of the GNU Lesser General Public |
| 19 | ;* License along with FFmpeg; if not, write to the Free Software |
| 20 | ;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 21 | ;****************************************************************************** |
| 22 | |
| 23 | %include "libavutil/x86/x86util.asm" |
| 24 | |
| 25 | SECTION_RODATA |
| 26 | |
| 27 | cextern pw_4 |
| 28 | |
| 29 | SECTION .text |
| 30 | |
| 31 | %macro DEINTERLACE 1 |
| 32 | %ifidn %1, inplace |
| 33 | ;void ff_deinterlace_line_inplace_mmx(const uint8_t *lum_m4, const uint8_t *lum_m3, const uint8_t *lum_m2, const uint8_t *lum_m1, const uint8_t *lum, int size) |
| 34 | cglobal deinterlace_line_inplace_mmx, 6,6,7, lum_m4, lum_m3, lum_m2, lum_m1, lum, size |
| 35 | %else |
| 36 | ;void ff_deinterlace_line_mmx(uint8_t *dst, const uint8_t *lum_m4, const uint8_t *lum_m3, const uint8_t *lum_m2, const uint8_t *lum_m1, const uint8_t *lum, int size) |
| 37 | cglobal deinterlace_line_mmx, 7,7,7, dst, lum_m4, lum_m3, lum_m2, lum_m1, lum, size |
| 38 | %endif |
| 39 | pxor mm7, mm7 |
| 40 | movq mm6, [pw_4] |
| 41 | .nextrow: |
| 42 | movd mm0, [lum_m4q] |
| 43 | movd mm1, [lum_m3q] |
| 44 | movd mm2, [lum_m2q] |
| 45 | %ifidn %1, inplace |
| 46 | movd [lum_m4q], mm2 |
| 47 | %endif |
| 48 | movd mm3, [lum_m1q] |
| 49 | movd mm4, [lumq] |
| 50 | punpcklbw mm0, mm7 |
| 51 | punpcklbw mm1, mm7 |
| 52 | punpcklbw mm2, mm7 |
| 53 | punpcklbw mm3, mm7 |
| 54 | punpcklbw mm4, mm7 |
| 55 | paddw mm1, mm3 |
| 56 | psllw mm2, 1 |
| 57 | paddw mm0, mm4 |
| 58 | psllw mm1, 2 |
| 59 | paddw mm2, mm6 |
| 60 | paddw mm1, mm2 |
| 61 | psubusw mm1, mm0 |
| 62 | psrlw mm1, 3 |
| 63 | packuswb mm1, mm7 |
| 64 | %ifidn %1, inplace |
| 65 | movd [lum_m2q], mm1 |
| 66 | %else |
| 67 | movd [dstq], mm1 |
| 68 | add dstq, 4 |
| 69 | %endif |
| 70 | add lum_m4q, 4 |
| 71 | add lum_m3q, 4 |
| 72 | add lum_m2q, 4 |
| 73 | add lum_m1q, 4 |
| 74 | add lumq, 4 |
| 75 | sub sized, 4 |
| 76 | jg .nextrow |
| 77 | REP_RET |
| 78 | %endmacro |
| 79 | |
| 80 | DEINTERLACE "" |
| 81 | |
| 82 | DEINTERLACE inplace |