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Diffstat (limited to 'arm_compute/core/utils/misc/SaturateCast.h')
| -rw-r--r-- | arm_compute/core/utils/misc/SaturateCast.h | 218 |
1 files changed, 0 insertions, 218 deletions
diff --git a/arm_compute/core/utils/misc/SaturateCast.h b/arm_compute/core/utils/misc/SaturateCast.h deleted file mode 100644 index 0241c64b14..0000000000 --- a/arm_compute/core/utils/misc/SaturateCast.h +++ /dev/null @@ -1,218 +0,0 @@ -/* - * Copyright (c) 2018-2019 ARM Limited. - * - * SPDX-License-Identifier: MIT - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to - * deal in the Software without restriction, including without limitation the - * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or - * sell copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ -#ifndef ARM_COMPUTE_UTILS_CAST_SATURATE_CAST_H -#define ARM_COMPUTE_UTILS_CAST_SATURATE_CAST_H - -#include "arm_compute/core/utils/misc/Rounding.h" -#include "arm_compute/core/utils/misc/Traits.h" -#include "arm_compute/core/utils/misc/Utility.h" - -namespace arm_compute -{ -namespace utils -{ -namespace cast -{ -// *INDENT-OFF* -// clang-format off -// same type -template<typename T, - typename U, - typename std::enable_if<std::is_same<T, U>::value, int >::type = 0 > -T saturate_cast(U v) -{ - return v; -} - -// signed -> signed widening/same_width -template<typename T, - typename U, - typename std::enable_if<std::is_integral<T>::value && - std::is_integral<U>::value && - std::is_signed<U>() && - std::is_signed<T>() && - !std::is_same<T, U>::value && - sizeof(T) >= sizeof(U), - int >::type = 0 > -inline T saturate_cast(U v) -{ - return static_cast<T>(v); -} -// signed -> signed narrowing -template<typename T, - typename U, - typename std::enable_if<std::is_integral<T>::value && - std::is_integral<U>::value && - std::is_signed<U>() && - std::is_signed<T>() && - !std::is_same<T, U>::value && - sizeof(T) < sizeof(U), - int >::type = 0 > -inline T saturate_cast(U v) -{ - return static_cast<T>(utility::clamp<U>(v, std::numeric_limits<T>::lowest(), std::numeric_limits<T>::max())); -} - -// unsigned -> signed widening -template<typename T, - typename U, - typename std::enable_if<std::is_integral<T>::value && - std::is_integral<U>::value && - std::is_unsigned<U>() && - std::is_signed<T>() && - !std::is_same<T, U>::value && - (sizeof(T) > sizeof(U)), - int >::type = 0 > -inline T saturate_cast(U v) -{ - return static_cast<T>(v); -} -// unsigned -> signed narrowing -template<typename T, - typename U, - typename std::enable_if<std::is_integral<T>::value && - std::is_integral<U>::value && - std::is_unsigned<U>() && - std::is_signed<T>() && - !std::is_same<T, U>::value && - sizeof(T) < sizeof(U), - int >::type = 0 > -inline T saturate_cast(U v) -{ - return static_cast<T>(std::min<U>(v, std::numeric_limits<T>::max())); -} -// unsigned -> signed same_width -template<typename T, - typename U, - typename std::enable_if<std::is_integral<T>::value && - std::is_integral<U>::value && - std::is_unsigned<U>() && - std::is_signed<T>() && - !std::is_same<T, U>::value && - sizeof(T) == sizeof(U), - int >::type = 0 > -inline T saturate_cast(U v) -{ - return static_cast<T>(std::min<U>(v, std::numeric_limits<T>::max())); -} - -// signed -> unsigned widening/same width -template<typename T, - typename U, - typename std::enable_if<std::is_integral<T>::value && - std::is_integral<U>::value && - std::is_signed<U>() && - std::is_unsigned<T>() && - !std::is_same<T, U>::value && - sizeof(T) >= sizeof(U), - int >::type = 0 > -inline T saturate_cast(U v) -{ - return static_cast<T>(std::max<U>(0, v)); -} - -// signed -> unsigned narrowing -template<typename T, - typename U, - typename std::enable_if<std::is_integral<T>::value && - std::is_integral<U>::value && - std::is_signed<U>() && - std::is_unsigned<T>() && - !std::is_same<T, U>::value && - sizeof(T) < sizeof(U), - int >::type = 0 > -inline T saturate_cast(U v) -{ - return static_cast<T>(utility::clamp<U>(v, 0, std::numeric_limits<T>::max())); -} - -// unsigned -> unsigned widening/same width -template<typename T, - typename U, - typename std::enable_if<std::is_integral<T>::value && - std::is_integral<U>::value && - std::is_unsigned<T>() && - std::is_unsigned<U>() && - !std::is_same<T, U>::value && - sizeof(T) >= sizeof(U), - int >::type = 0 > -inline T saturate_cast(U v) -{ - return static_cast<T>(v); -} - -// unsigned -> unsigned narrowing -template<typename T, - typename U, - typename std::enable_if<std::is_integral<T>::value && - std::is_integral<U>::value && - std::is_unsigned<T>() && - std::is_unsigned<U>() && - !std::is_same<T, U>::value && - sizeof(T) < sizeof(U), - int >::type = 0 > -inline T saturate_cast(U v) -{ - return static_cast<T>(utility::clamp<U>(v, std::numeric_limits<T>::lowest(), std::numeric_limits<T>::max())); -} - -// float -> int -template<typename T, - typename U, - typename std::enable_if<std::is_integral<T>::value && - traits::is_floating_point<U>::value, - int >::type = 0 > -inline T saturate_cast(U v) -{ - int32_t vi = utils::rounding::round_half_away_from_zero(v); - return saturate_cast<T>(vi); -} - -// int -> float -template<typename T, - typename U, - typename std::enable_if<traits::is_floating_point<T>::value && - std::is_integral<U>::value, - int >::type = 0 > -inline T saturate_cast(U v) -{ - return static_cast<T>(v); -} - -// float -> float -template<typename T, - typename U, - typename std::enable_if<traits::is_floating_point<T>::value && - traits::is_floating_point<U>::value, - int >::type = 0 > -inline T saturate_cast(U v) -{ - return static_cast<T>(v); -} -// clang-format on -// *INDENT-ON* -} // namespace cast -} // namespace utils -} // namespace arm_compute -#endif /* ARM_COMPUTE_UTILS_CAST_SATURATE_CAST_H */ |