diff options
Diffstat (limited to 'media/libjpeg/simd/arm/neon-compat.h')
| -rw-r--r-- | media/libjpeg/simd/arm/neon-compat.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/media/libjpeg/simd/arm/neon-compat.h b/media/libjpeg/simd/arm/neon-compat.h new file mode 100644 index 0000000000..2907634e26 --- /dev/null +++ b/media/libjpeg/simd/arm/neon-compat.h @@ -0,0 +1,33 @@ +/* + * Copyright (C) 2020, D. R. Commander. All Rights Reserved. + * Copyright (C) 2020-2021, Arm Limited. All Rights Reserved. + * + * This software is provided 'as-is', without any express or implied + * warranty. In no event will the authors be held liable for any damages + * arising from the use of this software. + * + * Permission is granted to anyone to use this software for any purpose, + * including commercial applications, and to alter it and redistribute it + * freely, subject to the following restrictions: + * + * 1. The origin of this software must not be misrepresented; you must not + * claim that you wrote the original software. If you use this software + * in a product, an acknowledgment in the product documentation would be + * appreciated but is not required. + * 2. Altered source versions must be plainly marked as such, and must not be + * misrepresented as being the original software. + * 3. This notice may not be removed or altered from any source distribution. + */ + +/* Define compiler-independent count-leading-zeros and byte-swap macros */ +#if defined(_MSC_VER) && !defined(__clang__) +#define BUILTIN_CLZ(x) _CountLeadingZeros(x) +#define BUILTIN_CLZLL(x) _CountLeadingZeros64(x) +#define BUILTIN_BSWAP64(x) _byteswap_uint64(x) +#elif defined(__clang__) || defined(__GNUC__) +#define BUILTIN_CLZ(x) __builtin_clz(x) +#define BUILTIN_CLZLL(x) __builtin_clzll(x) +#define BUILTIN_BSWAP64(x) __builtin_bswap64(x) +#else +#error "Unknown compiler" +#endif |