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77 lines
5.0 KiB
77 lines
5.0 KiB
/* |
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* Copyright (c) 2016 Matthieu Bouron <matthieu.bouron stupeflix.com> |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "libavutil/arm/asm.S" |
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function ff_resample_common_apply_filter_x4_float_neon, export=1 |
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vmov.f32 q0, #0.0 @ accumulator |
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1: vld1.32 {q1}, [r1]! @ src |
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vld1.32 {q2}, [r2]! @ filter |
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vmla.f32 q0, q1, q2 @ accumulator += src + {0..3} * filter + {0..3} |
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subs r3, #4 @ filter_length -= 4 |
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bgt 1b @ loop until filter_length |
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vpadd.f32 d0, d0, d1 @ pair adding of the 4x32-bit accumulated values |
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vpadd.f32 d0, d0, d0 @ pair adding of the 4x32-bit accumulator values |
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vst1.32 {d0[0]}, [r0] @ write accumulator |
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mov pc, lr |
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endfunc |
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function ff_resample_common_apply_filter_x8_float_neon, export=1 |
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vmov.f32 q0, #0.0 @ accumulator |
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1: vld1.32 {q1}, [r1]! @ src |
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vld1.32 {q2}, [r2]! @ filter |
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vld1.32 {q8}, [r1]! @ src |
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vld1.32 {q9}, [r2]! @ filter |
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vmla.f32 q0, q1, q2 @ accumulator += src + {0..3} * filter + {0..3} |
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vmla.f32 q0, q8, q9 @ accumulator += src + {4..7} * filter + {4..7} |
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subs r3, #8 @ filter_length -= 8 |
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bgt 1b @ loop until filter_length |
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vpadd.f32 d0, d0, d1 @ pair adding of the 4x32-bit accumulated values |
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vpadd.f32 d0, d0, d0 @ pair adding of the 4x32-bit accumulator values |
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vst1.32 {d0[0]}, [r0] @ write accumulator |
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mov pc, lr |
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endfunc |
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function ff_resample_common_apply_filter_x4_s16_neon, export=1 |
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vmov.s32 q0, #0 @ accumulator |
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1: vld1.16 {d2}, [r1]! @ src |
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vld1.16 {d4}, [r2]! @ filter |
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vmlal.s16 q0, d2, d4 @ accumulator += src + {0..3} * filter + {0..3} |
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subs r3, #4 @ filter_length -= 4 |
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bgt 1b @ loop until filter_length |
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vpadd.s32 d0, d0, d1 @ pair adding of the 4x32-bit accumulated values |
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vpadd.s32 d0, d0, d0 @ pair adding of the 4x32-bit accumulator values |
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vst1.32 {d0[0]}, [r0] @ write accumulator |
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mov pc, lr |
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endfunc |
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function ff_resample_common_apply_filter_x8_s16_neon, export=1 |
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vmov.s32 q0, #0 @ accumulator |
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1: vld1.16 {q1}, [r1]! @ src |
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vld1.16 {q2}, [r2]! @ filter |
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vmlal.s16 q0, d2, d4 @ accumulator += src + {0..3} * filter + {0..3} |
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vmlal.s16 q0, d3, d5 @ accumulator += src + {4..7} * filter + {4..7} |
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subs r3, #8 @ filter_length -= 8 |
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bgt 1b @ loop until filter_length |
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vpadd.s32 d0, d0, d1 @ pair adding of the 4x32-bit accumulated values |
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vpadd.s32 d0, d0, d0 @ pair adding of the 4x32-bit accumulator values |
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vst1.32 {d0[0]}, [r0] @ write accumulator |
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mov pc, lr |
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endfunc
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