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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /media/ffvpx/libavcodec/arm/mathops.h | |
parent | Initial commit. (diff) | |
download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'media/ffvpx/libavcodec/arm/mathops.h')
-rw-r--r-- | media/ffvpx/libavcodec/arm/mathops.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/media/ffvpx/libavcodec/arm/mathops.h b/media/ffvpx/libavcodec/arm/mathops.h new file mode 100644 index 0000000000..dc57c5571c --- /dev/null +++ b/media/ffvpx/libavcodec/arm/mathops.h @@ -0,0 +1,108 @@ +/* + * simple math operations + * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> et al + * + * 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 + */ + +#ifndef AVCODEC_ARM_MATHOPS_H +#define AVCODEC_ARM_MATHOPS_H + +#include <stdint.h> +#include "config.h" +#include "libavutil/common.h" + +#if HAVE_INLINE_ASM + +#if HAVE_ARMV6_INLINE +#define MULH MULH +static inline av_const int MULH(int a, int b) +{ + int r; + __asm__ ("smmul %0, %1, %2" : "=r"(r) : "r"(a), "r"(b)); + return r; +} + +#define FASTDIV FASTDIV +static av_always_inline av_const int FASTDIV(int a, int b) +{ + int r; + __asm__ ("cmp %2, #2 \n\t" + "ldr %0, [%3, %2, lsl #2] \n\t" + "ite le \n\t" + "lsrle %0, %1, #1 \n\t" + "smmulgt %0, %0, %1 \n\t" + : "=&r"(r) : "r"(a), "r"(b), "r"(ff_inverse) : "cc"); + return r; +} + +#else /* HAVE_ARMV6_INLINE */ + +#define FASTDIV FASTDIV +static av_always_inline av_const int FASTDIV(int a, int b) +{ + int r, t; + __asm__ ("umull %1, %0, %2, %3" + : "=&r"(r), "=&r"(t) : "r"(a), "r"(ff_inverse[b])); + return r; +} +#endif + +#define MLS64(d, a, b) MAC64(d, -(a), b) + +#if HAVE_ARMV5TE_INLINE + +/* signed 16x16 -> 32 multiply add accumulate */ +# define MAC16(rt, ra, rb) \ + __asm__ ("smlabb %0, %1, %2, %0" : "+r"(rt) : "r"(ra), "r"(rb)); + +/* signed 16x16 -> 32 multiply */ +# define MUL16 MUL16 +static inline av_const int MUL16(int ra, int rb) +{ + int rt; + __asm__ ("smulbb %0, %1, %2" : "=r"(rt) : "r"(ra), "r"(rb)); + return rt; +} + +#endif + +#define mid_pred mid_pred +static inline av_const int mid_pred(int a, int b, int c) +{ + int m; + __asm__ ( + "mov %0, %2 \n\t" + "cmp %1, %2 \n\t" + "itt gt \n\t" + "movgt %0, %1 \n\t" + "movgt %1, %2 \n\t" + "cmp %1, %3 \n\t" + "it le \n\t" + "movle %1, %3 \n\t" + "cmp %0, %1 \n\t" + "it gt \n\t" + "movgt %0, %1 \n\t" + : "=&r"(m), "+r"(a) + : "r"(b), "r"(c) + : "cc"); + return m; +} + +#endif /* HAVE_INLINE_ASM */ + +#endif /* AVCODEC_ARM_MATHOPS_H */ |