diff options
Diffstat (limited to 'third_party/aom/av1/common/cdef_simd.h')
| -rw-r--r-- | third_party/aom/av1/common/cdef_simd.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/third_party/aom/av1/common/cdef_simd.h b/third_party/aom/av1/common/cdef_simd.h new file mode 100644 index 0000000000..2649099a21 --- /dev/null +++ b/third_party/aom/av1/common/cdef_simd.h @@ -0,0 +1,27 @@ +/* + * Copyright (c) 2016, Alliance for Open Media. All rights reserved + * + * This source code is subject to the terms of the BSD 2 Clause License and + * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License + * was not distributed with this source code in the LICENSE file, you can + * obtain it at www.aomedia.org/license/software. If the Alliance for Open + * Media Patent License 1.0 was not distributed with this source code in the + * PATENTS file, you can obtain it at www.aomedia.org/license/patent. + */ +#ifndef AV1_COMMON_CDEF_SIMD_H_ +#define AV1_COMMON_CDEF_SIMD_H_ + +#include "aom_dsp/aom_simd.h" + +// sign(a-b) * min(abs(a-b), max(0, threshold - (abs(a-b) >> adjdamp))) +SIMD_INLINE v128 constrain16(v128 a, v128 b, unsigned int threshold, + unsigned int adjdamp) { + v128 diff = v128_sub_16(a, b); + const v128 sign = v128_shr_n_s16(diff, 15); + diff = v128_abs_s16(diff); + const v128 s = + v128_ssub_u16(v128_dup_16(threshold), v128_shr_u16(diff, adjdamp)); + return v128_xor(v128_add_16(sign, v128_min_s16(diff, s)), sign); +} + +#endif // AV1_COMMON_CDEF_SIMD_H_ |