diff options
Diffstat (limited to 'arm_compute/core/Utils.h')
-rw-r--r-- | arm_compute/core/Utils.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/arm_compute/core/Utils.h b/arm_compute/core/Utils.h index 366d5dcc68..590e281bb0 100644 --- a/arm_compute/core/Utils.h +++ b/arm_compute/core/Utils.h @@ -549,6 +549,72 @@ inline DataType get_promoted_data_type(DataType dt) return DataType::UNKNOWN; } +/** Compute the mininum and maximum values a data type can take + * + * @param[in] dt Data type to get the min/max bounds of + * + * @return A tuple (min,max) with the minimum and maximum values respectively wrapped in PixelValue. + */ +inline std::tuple<PixelValue, PixelValue> get_min_max(DataType dt) +{ + PixelValue min(0); + PixelValue max(0); + switch(dt) + { + case DataType::U8: + case DataType::QASYMM8: + { + min = PixelValue(std::numeric_limits<uint8_t>::lowest()); + max = PixelValue(std::numeric_limits<uint8_t>::max()); + break; + } + case DataType::S8: + case DataType::QSYMM8: + case DataType::QASYMM8_SIGNED: + case DataType::QSYMM8_PER_CHANNEL: + { + min = PixelValue(std::numeric_limits<int8_t>::lowest()); + max = PixelValue(std::numeric_limits<int8_t>::max()); + break; + } + case DataType::U16: + case DataType::QASYMM16: + { + min = PixelValue(std::numeric_limits<uint16_t>::lowest()); + max = PixelValue(std::numeric_limits<uint16_t>::max()); + break; + } + case DataType::S16: + case DataType::QSYMM16: + { + min = PixelValue(std::numeric_limits<int16_t>::lowest()); + max = PixelValue(std::numeric_limits<int16_t>::max()); + break; + } + case DataType::U32: + { + min = PixelValue(std::numeric_limits<uint32_t>::lowest()); + max = PixelValue(std::numeric_limits<uint32_t>::max()); + break; + } + case DataType::S32: + { + min = PixelValue(std::numeric_limits<int32_t>::lowest()); + max = PixelValue(std::numeric_limits<int32_t>::max()); + break; + } + case DataType::F32: + { + min = PixelValue(std::numeric_limits<float>::lowest()); + max = PixelValue(std::numeric_limits<float>::max()); + break; + } + default: + ARM_COMPUTE_ERROR("Undefined data type!"); + } + return std::make_tuple(min, max); +} + /** Return true if the given format has horizontal subsampling. * * @param[in] format Format to determine subsampling. @@ -1054,6 +1120,23 @@ inline bool is_data_type_quantized_asymmetric(DataType dt) } } +/** Check if a given data type is of asymmetric quantized signed type + * + * @param[in] dt Input data type. + * + * @return True if data type is of asymmetric quantized signed type, else false. + */ +inline bool is_data_type_quantized_asymmetric_signed(DataType dt) +{ + switch(dt) + { + case DataType::QASYMM8_SIGNED: + return true; + default: + return false; + } +} + /** Check if a given data type is of symmetric quantized type * * @param[in] dt Input data type. |