mirror of
https://github.com/librempeg/librempeg
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246 lines
11 KiB
ArmAsm
246 lines
11 KiB
ArmAsm
/*
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* Bluetooth low-complexity, subband codec (SBC)
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*
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* Copyright (C) 2017 Aurelien Jacobs <aurel@gnuage.org>
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* Copyright (C) 2008-2010 Nokia Corporation
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* Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
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* Copyright (C) 2004-2005 Henryk Ploetz <henryk@ploetzli.ch>
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* Copyright (C) 2005-2006 Brad Midgley <bmidgley@xmission.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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/**
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* @file
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* SBC ARMv6 optimizations. The instructions are scheduled for ARM11 pipeline.
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*/
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#include "libavutil/arm/asm.S"
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function ff_sbc_analyze_4_armv6, export=1
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@ r0 = in, r1 = out, r2 = consts
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push {r1, r3-r7, lr}
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push {r8-r12, r14}
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ldrd r4, r5, [r0, #0]
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ldrd r6, r7, [r2, #0]
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ldrd r8, r9, [r0, #16]
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ldrd r10, r11, [r2, #16]
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mov r14, #0x8000
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smlad r3, r4, r6, r14
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smlad r12, r5, r7, r14
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ldrd r4, r5, [r0, #32]
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ldrd r6, r7, [r2, #32]
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smlad r3, r8, r10, r3
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smlad r12, r9, r11, r12
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ldrd r8, r9, [r0, #48]
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ldrd r10, r11, [r2, #48]
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smlad r3, r4, r6, r3
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smlad r12, r5, r7, r12
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ldrd r4, r5, [r0, #64]
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ldrd r6, r7, [r2, #64]
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smlad r3, r8, r10, r3
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smlad r12, r9, r11, r12
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ldrd r8, r9, [r0, #8]
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ldrd r10, r11, [r2, #8]
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smlad r3, r4, r6, r3 @ t1[0] is done
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smlad r12, r5, r7, r12 @ t1[1] is done
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ldrd r4, r5, [r0, #24]
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ldrd r6, r7, [r2, #24]
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pkhtb r3, r12, r3, asr #16 @ combine t1[0] and t1[1]
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smlad r12, r8, r10, r14
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smlad r14, r9, r11, r14
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ldrd r8, r9, [r0, #40]
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ldrd r10, r11, [r2, #40]
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smlad r12, r4, r6, r12
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smlad r14, r5, r7, r14
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ldrd r4, r5, [r0, #56]
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ldrd r6, r7, [r2, #56]
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smlad r12, r8, r10, r12
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smlad r14, r9, r11, r14
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ldrd r8, r9, [r0, #72]
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ldrd r10, r11, [r2, #72]
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smlad r12, r4, r6, r12
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smlad r14, r5, r7, r14
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ldrd r4, r5, [r2, #80] @ start loading cos table
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smlad r12, r8, r10, r12 @ t1[2] is done
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smlad r14, r9, r11, r14 @ t1[3] is done
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ldrd r6, r7, [r2, #88]
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ldrd r8, r9, [r2, #96]
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ldrd r10, r11, [r2, #104] @ cos table fully loaded
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pkhtb r12, r14, r12, asr #16 @ combine t1[2] and t1[3]
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smuad r4, r3, r4
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smuad r5, r3, r5
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smlad r4, r12, r8, r4
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smlad r5, r12, r9, r5
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smuad r6, r3, r6
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smuad r7, r3, r7
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smlad r6, r12, r10, r6
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smlad r7, r12, r11, r7
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pop {r8-r12, r14}
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stmia r1, {r4, r5, r6, r7}
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pop {r1, r3-r7, pc}
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endfunc
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function ff_sbc_analyze_8_armv6, export=1
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@ r0 = in, r1 = out, r2 = consts
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push {r1, r3-r7, lr}
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push {r8-r12, r14}
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ldrd r4, r5, [r0, #24]
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ldrd r6, r7, [r2, #24]
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ldrd r8, r9, [r0, #56]
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ldrd r10, r11, [r2, #56]
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mov r14, #0x8000
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smlad r3, r4, r6, r14
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smlad r12, r5, r7, r14
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ldrd r4, r5, [r0, #88]
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ldrd r6, r7, [r2, #88]
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smlad r3, r8, r10, r3
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smlad r12, r9, r11, r12
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ldrd r8, r9, [r0, #120]
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ldrd r10, r11, [r2, #120]
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smlad r3, r4, r6, r3
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smlad r12, r5, r7, r12
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ldrd r4, r5, [r0, #152]
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ldrd r6, r7, [r2, #152]
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smlad r3, r8, r10, r3
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smlad r12, r9, r11, r12
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ldrd r8, r9, [r0, #16]
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ldrd r10, r11, [r2, #16]
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smlad r3, r4, r6, r3 @ t1[6] is done
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smlad r12, r5, r7, r12 @ t1[7] is done
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ldrd r4, r5, [r0, #48]
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ldrd r6, r7, [r2, #48]
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pkhtb r3, r12, r3, asr #16 @ combine t1[6] and t1[7]
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str r3, [sp, #-4]! @ save to stack
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smlad r3, r8, r10, r14
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smlad r12, r9, r11, r14
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ldrd r8, r9, [r0, #80]
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ldrd r10, r11, [r2, #80]
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smlad r3, r4, r6, r3
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smlad r12, r5, r7, r12
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ldrd r4, r5, [r0, #112]
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ldrd r6, r7, [r2, #112]
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smlad r3, r8, r10, r3
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smlad r12, r9, r11, r12
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ldrd r8, r9, [r0, #144]
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ldrd r10, r11, [r2, #144]
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smlad r3, r4, r6, r3
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smlad r12, r5, r7, r12
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ldrd r4, r5, [r0, #0]
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ldrd r6, r7, [r2, #0]
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smlad r3, r8, r10, r3 @ t1[4] is done
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smlad r12, r9, r11, r12 @ t1[5] is done
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ldrd r8, r9, [r0, #32]
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ldrd r10, r11, [r2, #32]
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pkhtb r3, r12, r3, asr #16 @ combine t1[4] and t1[5]
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str r3, [sp, #-4]! @ save to stack
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smlad r3, r4, r6, r14
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smlad r12, r5, r7, r14
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ldrd r4, r5, [r0, #64]
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ldrd r6, r7, [r2, #64]
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smlad r3, r8, r10, r3
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smlad r12, r9, r11, r12
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ldrd r8, r9, [r0, #96]
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ldrd r10, r11, [r2, #96]
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smlad r3, r4, r6, r3
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smlad r12, r5, r7, r12
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ldrd r4, r5, [r0, #128]
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ldrd r6, r7, [r2, #128]
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smlad r3, r8, r10, r3
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smlad r12, r9, r11, r12
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ldrd r8, r9, [r0, #8]
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ldrd r10, r11, [r2, #8]
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smlad r3, r4, r6, r3 @ t1[0] is done
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smlad r12, r5, r7, r12 @ t1[1] is done
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ldrd r4, r5, [r0, #40]
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ldrd r6, r7, [r2, #40]
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pkhtb r3, r12, r3, asr #16 @ combine t1[0] and t1[1]
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smlad r12, r8, r10, r14
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smlad r14, r9, r11, r14
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ldrd r8, r9, [r0, #72]
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ldrd r10, r11, [r2, #72]
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smlad r12, r4, r6, r12
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smlad r14, r5, r7, r14
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ldrd r4, r5, [r0, #104]
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ldrd r6, r7, [r2, #104]
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smlad r12, r8, r10, r12
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smlad r14, r9, r11, r14
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ldrd r8, r9, [r0, #136]
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ldrd r10, r11, [r2, #136]!
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smlad r12, r4, r6, r12
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smlad r14, r5, r7, r14
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ldrd r4, r5, [r2, #(160 - 136 + 0)]
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smlad r12, r8, r10, r12 @ t1[2] is done
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smlad r14, r9, r11, r14 @ t1[3] is done
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ldrd r6, r7, [r2, #(160 - 136 + 8)]
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smuad r4, r3, r4
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smuad r5, r3, r5
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pkhtb r12, r14, r12, asr #16 @ combine t1[2] and t1[3]
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@ r3 = t2[0:1]
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@ r12 = t2[2:3]
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pop {r0, r14} @ t2[4:5], t2[6:7]
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ldrd r8, r9, [r2, #(160 - 136 + 32)]
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smuad r6, r3, r6
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smuad r7, r3, r7
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ldrd r10, r11, [r2, #(160 - 136 + 40)]
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smlad r4, r12, r8, r4
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smlad r5, r12, r9, r5
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ldrd r8, r9, [r2, #(160 - 136 + 64)]
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smlad r6, r12, r10, r6
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smlad r7, r12, r11, r7
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ldrd r10, r11, [r2, #(160 - 136 + 72)]
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smlad r4, r0, r8, r4
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smlad r5, r0, r9, r5
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ldrd r8, r9, [r2, #(160 - 136 + 96)]
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smlad r6, r0, r10, r6
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smlad r7, r0, r11, r7
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ldrd r10, r11, [r2, #(160 - 136 + 104)]
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smlad r4, r14, r8, r4
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smlad r5, r14, r9, r5
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ldrd r8, r9, [r2, #(160 - 136 + 16 + 0)]
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smlad r6, r14, r10, r6
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smlad r7, r14, r11, r7
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ldrd r10, r11, [r2, #(160 - 136 + 16 + 8)]
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stmia r1!, {r4, r5}
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smuad r4, r3, r8
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smuad r5, r3, r9
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ldrd r8, r9, [r2, #(160 - 136 + 16 + 32)]
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stmia r1!, {r6, r7}
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smuad r6, r3, r10
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smuad r7, r3, r11
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ldrd r10, r11, [r2, #(160 - 136 + 16 + 40)]
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smlad r4, r12, r8, r4
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smlad r5, r12, r9, r5
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ldrd r8, r9, [r2, #(160 - 136 + 16 + 64)]
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smlad r6, r12, r10, r6
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smlad r7, r12, r11, r7
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ldrd r10, r11, [r2, #(160 - 136 + 16 + 72)]
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smlad r4, r0, r8, r4
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smlad r5, r0, r9, r5
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ldrd r8, r9, [r2, #(160 - 136 + 16 + 96)]
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smlad r6, r0, r10, r6
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smlad r7, r0, r11, r7
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ldrd r10, r11, [r2, #(160 - 136 + 16 + 104)]
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smlad r4, r14, r8, r4
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smlad r5, r14, r9, r5
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smlad r6, r14, r10, r6
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smlad r7, r14, r11, r7
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pop {r8-r12, r14}
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stmia r1!, {r4, r5, r6, r7}
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pop {r1, r3-r7, pc}
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endfunc
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