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471db1d323
Adapted from the corresponding me_cmp code. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
81 lines
2.7 KiB
ArmAsm
81 lines
2.7 KiB
ArmAsm
/*
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* Copyright (c) 2009 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 "asm.S"
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function ff_pixelutils_sad16_armv6, export=1
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push {r4-r10, lr}
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mov r12, #0
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mov r10, #16
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mov lr, #0
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ldm r0, {r4-r7}
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ldr r8, [r2]
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1:
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ldr r9, [r2, #4]
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pld [r0, r1]
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usada8 r12, r4, r8, r12
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ldr r8, [r2, #8]
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pld [r2, r3]
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usada8 lr, r5, r9, lr
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ldr r9, [r2, #12]
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usada8 r12, r6, r8, r12
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subs r10, r10, #1
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usada8 lr, r7, r9, lr
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beq 2f
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add r0, r0, r1
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ldm r0, {r4-r7}
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add r2, r2, r3
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ldr r8, [r2]
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b 1b
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2:
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add r0, r12, lr
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pop {r4-r10, pc}
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endfunc
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function ff_pixelutils_sad8_armv6, export=1
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pld [r2, r3]
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push {r4-r10, lr}
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mov r10, #8
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mov r12, #0
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mov lr, #0
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ldrd_post r4, r5, r0, r1
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1:
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subs r10, r10, #2
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ldr r7, [r2, #4]
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ldr_post r6, r2, r3
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ldrd_post r8, r9, r0, r1
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usada8 r12, r4, r6, r12
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pld [r2, r3]
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usada8 lr, r5, r7, lr
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ldr r7, [r2, #4]
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ldr_post r6, r2, r3
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beq 2f
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ldrd_post r4, r5, r0, r1
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usada8 r12, r8, r6, r12
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pld [r2, r3]
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usada8 lr, r9, r7, lr
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b 1b
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2:
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usada8 r12, r8, r6, r12
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usada8 lr, r9, r7, lr
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add r0, r12, lr
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pop {r4-r10, pc}
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endfunc
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