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60 lines
2.1 KiB
60 lines
2.1 KiB
/* |
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* Copyright (c) 2010 Mans Rullgard <mans@mansr.com> |
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* |
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* This file is part of Libav. |
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* |
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* Libav 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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* Libav 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 Libav; 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 "asm.S" |
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function ff_dca_lfe_fir_neon, export=1 |
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push {r4-r6,lr} |
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add r4, r0, r3, lsl #2 @ out2 |
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add r5, r2, #256*4-16 @ cf1 |
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sub r1, r1, #12 |
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cmp r3, #32 |
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moveq r6, #256/32 |
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movne r6, #256/64 |
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NOVFP vldr s0, [sp, #16] @ scale |
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mov lr, #-16 |
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1: |
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vmov.f32 q2, #0.0 @ v0 |
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vmov.f32 q3, #0.0 @ v1 |
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mov r12, r6 |
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2: |
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vld1.32 {q8}, [r2,:128]! @ cf0 |
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vld1.32 {q9}, [r5,:128], lr @ cf1 |
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vld1.32 {q1}, [r1], lr @ in |
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subs r12, r12, #4 |
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vrev64.32 q10, q8 |
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vmla.f32 q3, q1, q9 |
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vmla.f32 d4, d2, d21 |
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vmla.f32 d5, d3, d20 |
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bne 2b |
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add r1, r1, r6, lsl #2 |
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subs r3, r3, #1 |
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vadd.f32 d4, d4, d5 |
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vadd.f32 d6, d6, d7 |
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vpadd.f32 d4, d4, d6 |
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vmul.f32 d5, d4, d0[0] |
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vst1.32 {d5[0]}, [r0,:32]! |
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vst1.32 {d5[1]}, [r4,:32]! |
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bne 1b |
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pop {r4-r6,pc} |
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endfunc
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