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48 lines
1.8 KiB
48 lines
1.8 KiB
/* |
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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 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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function ff_add_pixels_clamped_armv6, export=1 |
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push {r4-r8,lr} |
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mov r3, #8 |
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1: |
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ldm r0!, {r4,r5,r12,lr} |
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ldrd r6, r7, [r1] |
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pkhbt r8, r4, r5, lsl #16 |
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pkhtb r5, r5, r4, asr #16 |
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pkhbt r4, r12, lr, lsl #16 |
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pkhtb lr, lr, r12, asr #16 |
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pld [r1, r2] |
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uxtab16 r8, r8, r6 |
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uxtab16 r5, r5, r6, ror #8 |
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uxtab16 r4, r4, r7 |
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uxtab16 lr, lr, r7, ror #8 |
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usat16 r8, #8, r8 |
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usat16 r5, #8, r5 |
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usat16 r4, #8, r4 |
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usat16 lr, #8, lr |
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orr r6, r8, r5, lsl #8 |
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orr r7, r4, lr, lsl #8 |
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subs r3, r3, #1 |
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strd_post r6, r7, r1, r2 |
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bgt 1b |
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pop {r4-r8,pc} |
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endfunc
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