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![Michael Niedermayer](/assets/img/avatar_default.png)
* qatar/master: ARM: use numeric ID for Tag_ABI_align_preserved segment: Pass the interrupt callback on to the chained AVFormatContext, too ARM: bswap: drop armcc version of av_bswap16() ARM: set Tag_ABI_align_preserved in all asm files Merged-by: Michael Niedermayer <michaelni@gmx.at>
116 lines
4.2 KiB
ArmAsm
116 lines
4.2 KiB
ArmAsm
/*
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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 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_synth_filter_float_neon, export=1
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push {r3-r11,lr}
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ldr r4, [r2] @ synth_buf_offset
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add r1, r1, r4, lsl #2 @ synth_buf
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sub r12, r4, #32
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bfc r12, #9, #23
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bic r4, r4, #63
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str r12, [r2]
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ldr r2, [sp, #12*4] @ in
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mov r9, r1 @ synth_buf
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VFP vpush {d0}
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bl X(ff_imdct_half_neon)
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VFP vpop {d0}
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pop {r3}
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ldr r5, [sp, #9*4] @ window
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ldr r2, [sp, #10*4] @ out
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NOVFP vldr s0, [sp, #12*4] @ scale
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add r8, r9, #12*4
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mov lr, #64*4
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mov r1, #4
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1:
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add r10, r9, #16*4 @ synth_buf
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add r11, r8, #16*4
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add r0, r5, #16*4 @ window
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add r6, r5, #32*4
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add r7, r5, #48*4
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vld1.32 {q10}, [r3,:128] @ a
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add r3, r3, #16*4
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vld1.32 {q1}, [r3,:128] @ b
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vmov.f32 q2, #0.0 @ c
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vmov.f32 q3, #0.0 @ d
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mov r12, #512
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2:
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vld1.32 {q9}, [r8, :128], lr
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vrev64.32 q9, q9
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vld1.32 {q8}, [r5, :128], lr
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vmls.f32 d20, d16, d19
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vld1.32 {q11}, [r0, :128], lr
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vmls.f32 d21, d17, d18
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vld1.32 {q12}, [r9, :128], lr
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vmla.f32 d2, d22, d24
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vld1.32 {q8}, [r6, :128], lr
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vmla.f32 d3, d23, d25
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vld1.32 {q9}, [r10,:128], lr
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vmla.f32 d4, d16, d18
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vld1.32 {q12}, [r11,:128], lr
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vmla.f32 d5, d17, d19
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vrev64.32 q12, q12
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vld1.32 {q11}, [r7, :128], lr
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vmla.f32 d6, d22, d25
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vmla.f32 d7, d23, d24
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subs r12, r12, #64
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beq 3f
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cmp r12, r4
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bne 2b
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sub r8, r8, #512*4
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sub r9, r9, #512*4
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sub r10, r10, #512*4
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sub r11, r11, #512*4
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b 2b
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3:
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vmul.f32 q8, q10, d0[0]
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vmul.f32 q9, q1, d0[0]
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vst1.32 {q3}, [r3,:128]
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sub r3, r3, #16*4
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vst1.32 {q2}, [r3,:128]
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vst1.32 {q8}, [r2,:128]
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add r2, r2, #16*4
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vst1.32 {q9}, [r2,:128]
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subs r1, r1, #1
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it eq
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popeq {r4-r11,pc}
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cmp r4, #0
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itt eq
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subeq r8, r8, #512*4
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subeq r9, r9, #512*4
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sub r5, r5, #512*4
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sub r2, r2, #12*4 @ out
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add r3, r3, #4*4 @ synth_buf2
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add r5, r5, #4*4 @ window
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add r9, r9, #4*4 @ synth_buf
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sub r8, r8, #4*4 @ synth_buf
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b 1b
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endfunc
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