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195 lines
7.1 KiB
195 lines
7.1 KiB
/* |
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* Copyright (c) 2011 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 "libavutil/arm/asm.S" |
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preserve8 |
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.macro prerot dst, rt |
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lsr r3, r6, #2 @ n4 |
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add \rt, r4, r6, lsr #1 @ revtab + n4 |
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add r9, r3, r3, lsl #1 @ n3 |
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add r8, r7, r6 @ tcos + n4 |
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add r3, r2, r6, lsr #1 @ in + n4 |
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add r9, r2, r9, lsl #1 @ in + n3 |
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sub r8, r8, #16 |
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sub r10, r3, #16 |
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sub r11, r9, #16 |
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mov r12, #-16 |
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1: |
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vld2.16 {d0,d1}, [r9, :128]! |
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vld2.16 {d2,d3}, [r11,:128], r12 |
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vld2.16 {d4,d5}, [r3, :128]! |
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vld2.16 {d6,d7}, [r10,:128], r12 |
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vld2.16 {d16,d17},[r7, :128]! @ cos, sin |
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vld2.16 {d18,d19},[r8, :128], r12 |
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vrev64.16 q1, q1 |
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vrev64.16 q3, q3 |
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vrev64.16 q9, q9 |
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vneg.s16 d0, d0 |
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vneg.s16 d2, d2 |
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vneg.s16 d16, d16 |
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vneg.s16 d18, d18 |
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vhsub.s16 d0, d0, d3 @ re |
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vhsub.s16 d4, d7, d4 @ im |
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vhsub.s16 d6, d6, d5 |
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vhsub.s16 d2, d2, d1 |
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vmull.s16 q10, d0, d16 |
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vmlsl.s16 q10, d4, d17 |
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vmull.s16 q11, d0, d17 |
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vmlal.s16 q11, d4, d16 |
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vmull.s16 q12, d6, d18 |
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vmlsl.s16 q12, d2, d19 |
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vmull.s16 q13, d6, d19 |
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vmlal.s16 q13, d2, d18 |
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vshrn.s32 d0, q10, #15 |
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vshrn.s32 d1, q11, #15 |
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vshrn.s32 d2, q12, #15 |
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vshrn.s32 d3, q13, #15 |
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vzip.16 d0, d1 |
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vzip.16 d2, d3 |
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ldrh lr, [r4], #2 |
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ldrh r2, [\rt, #-2]! |
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add lr, \dst, lr, lsl #2 |
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add r2, \dst, r2, lsl #2 |
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vst1.32 {d0[0]}, [lr,:32] |
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vst1.32 {d2[0]}, [r2,:32] |
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ldrh lr, [r4], #2 |
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ldrh r2, [\rt, #-2]! |
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add lr, \dst, lr, lsl #2 |
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add r2, \dst, r2, lsl #2 |
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vst1.32 {d0[1]}, [lr,:32] |
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vst1.32 {d2[1]}, [r2,:32] |
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ldrh lr, [r4], #2 |
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ldrh r2, [\rt, #-2]! |
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add lr, \dst, lr, lsl #2 |
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add r2, \dst, r2, lsl #2 |
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vst1.32 {d1[0]}, [lr,:32] |
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vst1.32 {d3[0]}, [r2,:32] |
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ldrh lr, [r4], #2 |
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ldrh r2, [\rt, #-2]! |
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add lr, \dst, lr, lsl #2 |
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add r2, \dst, r2, lsl #2 |
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vst1.32 {d1[1]}, [lr,:32] |
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vst1.32 {d3[1]}, [r2,:32] |
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subs r6, r6, #32 |
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bgt 1b |
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.endm |
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function ff_mdct_fixed_calc_neon, export=1 |
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push {r1,r4-r11,lr} |
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ldr r4, [r0, #8] @ revtab |
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ldr r6, [r0, #16] @ mdct_size; n |
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ldr r7, [r0, #24] @ tcos |
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prerot r1, r5 |
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mov r4, r0 |
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bl X(ff_fft_fixed_calc_neon) |
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pop {r5} |
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mov r12, #-16 |
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ldr r6, [r4, #16] @ mdct_size; n |
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ldr r7, [r4, #24] @ tcos |
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add r5, r5, r6, lsr #1 |
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add r7, r7, r6, lsr #1 |
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sub r1, r5, #16 |
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sub r2, r7, #16 |
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1: |
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vld2.16 {d4,d5}, [r7,:128]! |
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vld2.16 {d6,d7}, [r2,:128], r12 |
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vld2.16 {d0,d1}, [r5,:128] |
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vld2.16 {d2,d3}, [r1,:128] |
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vrev64.16 q3, q3 |
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vrev64.16 q1, q1 |
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vneg.s16 q3, q3 |
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vneg.s16 q2, q2 |
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vmull.s16 q11, d2, d6 |
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vmlal.s16 q11, d3, d7 |
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vmull.s16 q8, d0, d5 |
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vmlsl.s16 q8, d1, d4 |
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vmull.s16 q9, d0, d4 |
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vmlal.s16 q9, d1, d5 |
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vmull.s16 q10, d2, d7 |
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vmlsl.s16 q10, d3, d6 |
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vshrn.s32 d0, q11, #15 |
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vshrn.s32 d1, q8, #15 |
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vshrn.s32 d2, q9, #15 |
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vshrn.s32 d3, q10, #15 |
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vrev64.16 q0, q0 |
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vst2.16 {d2,d3}, [r5,:128]! |
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vst2.16 {d0,d1}, [r1,:128], r12 |
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subs r6, r6, #32 |
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bgt 1b |
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pop {r4-r11,pc} |
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endfunc |
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function ff_mdct_fixed_calcw_neon, export=1 |
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push {r1,r4-r11,lr} |
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ldrd r4, r5, [r0, #8] @ revtab, tmp_buf |
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ldr r6, [r0, #16] @ mdct_size; n |
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ldr r7, [r0, #24] @ tcos |
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prerot r5, r1 |
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mov r4, r0 |
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mov r1, r5 |
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bl X(ff_fft_fixed_calc_neon) |
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pop {r7} |
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mov r12, #-16 |
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ldr r6, [r4, #16] @ mdct_size; n |
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ldr r9, [r4, #24] @ tcos |
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add r5, r5, r6, lsr #1 |
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add r7, r7, r6 |
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add r9, r9, r6, lsr #1 |
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sub r3, r5, #16 |
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sub r1, r7, #16 |
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sub r2, r9, #16 |
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1: |
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vld2.16 {d4,d5}, [r9,:128]! |
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vld2.16 {d6,d7}, [r2,:128], r12 |
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vld2.16 {d0,d1}, [r5,:128]! |
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vld2.16 {d2,d3}, [r3,:128], r12 |
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vrev64.16 q3, q3 |
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vrev64.16 q1, q1 |
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vneg.s16 q3, q3 |
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vneg.s16 q2, q2 |
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vmull.s16 q8, d2, d6 |
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vmlal.s16 q8, d3, d7 |
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vmull.s16 q9, d0, d5 |
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vmlsl.s16 q9, d1, d4 |
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vmull.s16 q10, d0, d4 |
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vmlal.s16 q10, d1, d5 |
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vmull.s16 q11, d2, d7 |
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vmlsl.s16 q11, d3, d6 |
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vrev64.32 q8, q8 |
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vrev64.32 q9, q9 |
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vst2.32 {q10,q11},[r7,:128]! |
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vst2.32 {d16,d18},[r1,:128], r12 |
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vst2.32 {d17,d19},[r1,:128], r12 |
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subs r6, r6, #32 |
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bgt 1b |
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pop {r4-r11,pc} |
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endfunc
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