From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- media/ffvpx/libavutil/arm/intreadwrite.h | 91 ++++++++++++++++++++++++++++++++ 1 file changed, 91 insertions(+) create mode 100644 media/ffvpx/libavutil/arm/intreadwrite.h (limited to 'media/ffvpx/libavutil/arm/intreadwrite.h') diff --git a/media/ffvpx/libavutil/arm/intreadwrite.h b/media/ffvpx/libavutil/arm/intreadwrite.h new file mode 100644 index 0000000000..60fc860cbb --- /dev/null +++ b/media/ffvpx/libavutil/arm/intreadwrite.h @@ -0,0 +1,91 @@ +/* + * 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 AVUTIL_ARM_INTREADWRITE_H +#define AVUTIL_ARM_INTREADWRITE_H + +#include +#include "config.h" +#include "libavutil/attributes.h" + +#if HAVE_FAST_UNALIGNED && HAVE_INLINE_ASM && AV_GCC_VERSION_AT_MOST(4,6) + +#define AV_RN16 AV_RN16 +static av_always_inline unsigned AV_RN16(const void *p) +{ + const uint8_t *q = p; + unsigned v; +#if AV_GCC_VERSION_AT_MOST(4,5) + __asm__ ("ldrh %0, %1" : "=r"(v) : "m"(*(const uint16_t *)q)); +#elif defined __thumb__ + __asm__ ("ldrh %0, %1" : "=r"(v) : "m"(q[0]), "m"(q[1])); +#else + __asm__ ("ldrh %0, %1" : "=r"(v) : "Uq"(q[0]), "m"(q[1])); +#endif + return v; +} + +#define AV_WN16 AV_WN16 +static av_always_inline void AV_WN16(void *p, uint16_t v) +{ + __asm__ ("strh %1, %0" : "=m"(*(uint16_t *)p) : "r"(v)); +} + +#define AV_RN32 AV_RN32 +static av_always_inline uint32_t AV_RN32(const void *p) +{ + const struct __attribute__((packed)) { uint32_t v; } *q = p; + uint32_t v; + __asm__ ("ldr %0, %1" : "=r"(v) : "m"(*q)); + return v; +} + +#define AV_WN32 AV_WN32 +static av_always_inline void AV_WN32(void *p, uint32_t v) +{ + __asm__ ("str %1, %0" : "=m"(*(uint32_t *)p) : "r"(v)); +} + +#if HAVE_ASM_MOD_Q + +#define AV_RN64 AV_RN64 +static av_always_inline uint64_t AV_RN64(const void *p) +{ + const struct __attribute__((packed)) { uint32_t v; } *q = p; + uint64_t v; + __asm__ ("ldr %Q0, %1 \n\t" + "ldr %R0, %2 \n\t" + : "=&r"(v) + : "m"(q[0]), "m"(q[1])); + return v; +} + +#define AV_WN64 AV_WN64 +static av_always_inline void AV_WN64(void *p, uint64_t v) +{ + __asm__ ("str %Q2, %0 \n\t" + "str %R2, %1 \n\t" + : "=m"(*(uint32_t*)p), "=m"(*((uint32_t*)p+1)) + : "r"(v)); +} + +#endif /* HAVE_ASM_MOD_Q */ + +#endif /* HAVE_INLINE_ASM */ + +#endif /* AVUTIL_ARM_INTREADWRITE_H */ -- cgit v1.2.3