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- /*
- * Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
- #include "asm.S"
-
- .text
-
- function ff_add_pixels_clamped_armv6, export=1
- push {r4-r8,lr}
- mov r3, #8
- 1:
- ldm r0!, {r4,r5,r12,lr}
- ldrd r6, r7, [r1]
- pkhbt r8, r4, r5, lsl #16
- pkhtb r5, r5, r4, asr #16
- pkhbt r4, r12, lr, lsl #16
- pkhtb lr, lr, r12, asr #16
- pld [r1, r2]
- uxtab16 r8, r8, r6
- uxtab16 r5, r5, r6, ror #8
- uxtab16 r4, r4, r7
- uxtab16 lr, lr, r7, ror #8
- usat16 r8, #8, r8
- usat16 r5, #8, r5
- usat16 r4, #8, r4
- usat16 lr, #8, lr
- orr r6, r8, r5, lsl #8
- orr r7, r4, lr, lsl #8
- subs r3, r3, #1
- strd r6, r7, [r1], r2
- bgt 1b
- pop {r4-r8,pc}
- .endfunc
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