| /* |
| * Copyright (c) 2010 Mans Rullgard <mans@mansr.com> |
| * |
| * 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/arm/asm.S" |
| |
| .macro vp6_edge_filter |
| vdup.16 q3, r2 @ t |
| vmov.i16 q13, #1 |
| vsubl.u8 q0, d20, d18 @ p[ 0] - p[-s] |
| vsubl.u8 q1, d16, d22 @ p[-2*s] - p[ s] |
| vsubl.u8 q14, d21, d19 |
| vsubl.u8 q15, d17, d23 |
| vadd.i16 q2, q0, q0 @ 2*(p[0]-p[-s]) |
| vadd.i16 d29, d28, d28 |
| vadd.i16 q0, q0, q1 @ p[0]-p[-s] + p[-2*s]-p[s] |
| vadd.i16 d28, d28, d30 |
| vadd.i16 q0, q0, q2 @ 3*(p[0]-p[-s]) + p[-2*s]-p[s] |
| vadd.i16 d28, d28, d29 |
| vrshr.s16 q0, q0, #3 @ v |
| vrshr.s16 d28, d28, #3 |
| vsub.i16 q8, q3, q13 @ t-1 |
| vabs.s16 q1, q0 @ V |
| vshr.s16 q2, q0, #15 @ s |
| vabs.s16 d30, d28 |
| vshr.s16 d29, d28, #15 |
| vsub.i16 q12, q1, q3 @ V-t |
| vsub.i16 d31, d30, d6 |
| vsub.i16 q12, q12, q13 @ V-t-1 |
| vsub.i16 d31, d31, d26 |
| vcge.u16 q12, q12, q8 @ V-t-1 >= t-1 |
| vcge.u16 d31, d31, d16 |
| vadd.i16 q13, q3, q3 @ 2*t |
| vadd.i16 d16, d6, d6 |
| vsub.i16 q13, q13, q1 @ 2*t - V |
| vsub.i16 d16, d16, d30 |
| vadd.i16 q13, q13, q2 @ += s |
| vadd.i16 d16, d16, d29 |
| veor q13, q13, q2 @ ^= s |
| veor d16, d16, d29 |
| vbif q0, q13, q12 |
| vbif d28, d16, d31 |
| vmovl.u8 q1, d20 |
| vmovl.u8 q15, d21 |
| vaddw.u8 q2, q0, d18 |
| vaddw.u8 q3, q14, d19 |
| vsub.i16 q1, q1, q0 |
| vsub.i16 d30, d30, d28 |
| vqmovun.s16 d18, q2 |
| vqmovun.s16 d19, q3 |
| vqmovun.s16 d20, q1 |
| vqmovun.s16 d21, q15 |
| .endm |
| |
| function ff_vp6_edge_filter_ver_neon, export=1 |
| sub r0, r0, r1, lsl #1 |
| vld1.8 {q8}, [r0], r1 @ p[-2*s] |
| vld1.8 {q9}, [r0], r1 @ p[-s] |
| vld1.8 {q10}, [r0], r1 @ p[0] |
| vld1.8 {q11}, [r0] @ p[s] |
| vp6_edge_filter |
| sub r0, r0, r1, lsl #1 |
| sub r1, r1, #8 |
| vst1.8 {d18}, [r0]! |
| vst1.32 {d19[0]}, [r0], r1 |
| vst1.8 {d20}, [r0]! |
| vst1.32 {d21[0]}, [r0] |
| bx lr |
| endfunc |
| |
| function ff_vp6_edge_filter_hor_neon, export=1 |
| sub r3, r0, #1 |
| sub r0, r0, #2 |
| vld1.32 {d16[0]}, [r0], r1 |
| vld1.32 {d18[0]}, [r0], r1 |
| vld1.32 {d20[0]}, [r0], r1 |
| vld1.32 {d22[0]}, [r0], r1 |
| vld1.32 {d16[1]}, [r0], r1 |
| vld1.32 {d18[1]}, [r0], r1 |
| vld1.32 {d20[1]}, [r0], r1 |
| vld1.32 {d22[1]}, [r0], r1 |
| vld1.32 {d17[0]}, [r0], r1 |
| vld1.32 {d19[0]}, [r0], r1 |
| vld1.32 {d21[0]}, [r0], r1 |
| vld1.32 {d23[0]}, [r0], r1 |
| vtrn.8 q8, q9 |
| vtrn.8 q10, q11 |
| vtrn.16 q8, q10 |
| vtrn.16 q9, q11 |
| vp6_edge_filter |
| vtrn.8 q9, q10 |
| vst1.16 {d18[0]}, [r3], r1 |
| vst1.16 {d20[0]}, [r3], r1 |
| vst1.16 {d18[1]}, [r3], r1 |
| vst1.16 {d20[1]}, [r3], r1 |
| vst1.16 {d18[2]}, [r3], r1 |
| vst1.16 {d20[2]}, [r3], r1 |
| vst1.16 {d18[3]}, [r3], r1 |
| vst1.16 {d20[3]}, [r3], r1 |
| vst1.16 {d19[0]}, [r3], r1 |
| vst1.16 {d21[0]}, [r3], r1 |
| vst1.16 {d19[1]}, [r3], r1 |
| vst1.16 {d21[1]}, [r3], r1 |
| bx lr |
| endfunc |
