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118 lines
4.0 KiB
118 lines
4.0 KiB
/* |
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* ARM NEON optimised integer operations |
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* Copyright (c) 2009 Kostya Shishkov |
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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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preserve8 |
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.fpu neon |
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.text |
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function ff_scalarproduct_int16_neon, export=1 |
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vmov.i16 q0, #0 |
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vmov.i16 q1, #0 |
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vmov.i16 q2, #0 |
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vmov.i16 q3, #0 |
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negs r3, r3 |
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beq 2f |
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vdup.s32 q12, r3 |
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1: vld1.16 {d16-d17}, [r0]! |
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vld1.16 {d20-d21}, [r1,:128]! |
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vmull.s16 q12, d16, d20 |
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vld1.16 {d18-d19}, [r0]! |
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vmull.s16 q13, d17, d21 |
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vld1.16 {d22-d23}, [r1,:128]! |
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vmull.s16 q14, d18, d22 |
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vmull.s16 q15, d19, d23 |
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vshl.s32 q8, q12, q12 |
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vshl.s32 q9, q13, q12 |
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vadd.s32 q0, q0, q8 |
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vshl.s32 q10, q14, q12 |
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vadd.s32 q1, q1, q9 |
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vshl.s32 q11, q15, q12 |
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vadd.s32 q2, q2, q10 |
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vadd.s32 q3, q3, q11 |
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subs r2, r2, #16 |
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bne 1b |
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b 3f |
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2: vld1.16 {d16-d17}, [r0]! |
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vld1.16 {d20-d21}, [r1,:128]! |
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vmlal.s16 q0, d16, d20 |
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vld1.16 {d18-d19}, [r0]! |
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vmlal.s16 q1, d17, d21 |
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vld1.16 {d22-d23}, [r1,:128]! |
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vmlal.s16 q2, d18, d22 |
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vmlal.s16 q3, d19, d23 |
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subs r2, r2, #16 |
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bne 2b |
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3: vpadd.s32 d16, d0, d1 |
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vpadd.s32 d17, d2, d3 |
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vpadd.s32 d10, d4, d5 |
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vpadd.s32 d11, d6, d7 |
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vpadd.s32 d0, d16, d17 |
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vpadd.s32 d1, d10, d11 |
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vpadd.s32 d2, d0, d1 |
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vpaddl.s32 d3, d2 |
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vmov.32 r0, d3[0] |
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bx lr |
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endfunc |
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@ scalarproduct_and_madd_int16(/*aligned*/v0,v1,v2,order,mul) |
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function ff_scalarproduct_and_madd_int16_neon, export=1 |
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vld1.16 {d28[],d29[]}, [sp] |
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vmov.i16 q0, #0 |
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vmov.i16 q1, #0 |
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vmov.i16 q2, #0 |
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vmov.i16 q3, #0 |
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mov r12, r0 |
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1: vld1.16 {d16-d17}, [r0,:128]! |
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vld1.16 {d18-d19}, [r1]! |
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vld1.16 {d20-d21}, [r2]! |
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vld1.16 {d22-d23}, [r0,:128]! |
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vld1.16 {d24-d25}, [r1]! |
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vld1.16 {d26-d27}, [r2]! |
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vmul.s16 q10, q10, q14 |
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vmul.s16 q13, q13, q14 |
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vmlal.s16 q0, d16, d18 |
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vmlal.s16 q1, d17, d19 |
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vadd.s16 q10, q8, q10 |
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vadd.s16 q13, q11, q13 |
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vmlal.s16 q2, d22, d24 |
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vmlal.s16 q3, d23, d25 |
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vst1.16 {q10}, [r12,:128]! |
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subs r3, r3, #16 |
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vst1.16 {q13}, [r12,:128]! |
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bne 1b |
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vpadd.s32 d16, d0, d1 |
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vpadd.s32 d17, d2, d3 |
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vpadd.s32 d10, d4, d5 |
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vpadd.s32 d11, d6, d7 |
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vpadd.s32 d0, d16, d17 |
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vpadd.s32 d1, d10, d11 |
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vpadd.s32 d2, d0, d1 |
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vpaddl.s32 d3, d2 |
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vmov.32 r0, d3[0] |
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bx lr |
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endfunc
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