diff options
Diffstat (limited to 'arm_compute/core/QuantizationInfo.h')
-rw-r--r-- | arm_compute/core/QuantizationInfo.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/arm_compute/core/QuantizationInfo.h b/arm_compute/core/QuantizationInfo.h index 94f7e76c3e..06c9b61154 100644 --- a/arm_compute/core/QuantizationInfo.h +++ b/arm_compute/core/QuantizationInfo.h @@ -25,6 +25,7 @@ #define __ARM_COMPUTE_QUANTIZATION_INFO_H__ #include "arm_compute/core/Rounding.h" +#include "utils/misc/Utility.h" #include <cstddef> #include <vector> @@ -255,5 +256,57 @@ inline float dequantize_qsymm8(int8_t value, const QuantizationInfo &qinfo) { return value * qinfo.uniform().scale; } + +/** Quantize a value given a 16-bit symmetric quantization scheme + * + * @param[in] value Value to quantize + * @param[in] qinfo Quantization information to use for quantizing + * @param[in] rounding_policy (Optional) Rounding policy to use. Default: nearest up + * + * @return Quantized value + */ +inline int16_t quantize_qsymm16(float value, const UniformQuantizationInfo &qinfo, RoundingPolicy rounding_policy = RoundingPolicy::TO_NEAREST_UP) +{ + int quantized = arm_compute::round(value / qinfo.scale, rounding_policy); + quantized = arm_compute::utility::clamp<int, int16_t>(quantized); + return quantized; +} + +/** Dequantize a value given a 16-bit symmetric quantization scheme + * + * @param[in] value Value to dequantize + * @param[in] qinfo Quantization information to use for dequantizing + * + * @return Dequantized value + */ +inline float dequantize_qsymm16(int16_t value, const UniformQuantizationInfo &qinfo) +{ + return value * qinfo.scale; +} + +/** Quantize a value given a 16-bit symmetric quantization scheme + * + * @param[in] value Value to quantize + * @param[in] qinfo Quantization information to use for quantizing + * + * @return Quantized value + */ +inline int16_t quantize_qsymm16(float value, const QuantizationInfo &qinfo) +{ + return quantize_qsymm16(value, qinfo.uniform()); +} + +/** Dequantize a value given a 16-bit symmetric quantization scheme + * + * @param[in] value Value to dequantize + * @param[in] qinfo Quantization information to use for dequantizing + * + * @return Dequantized value + */ +inline float dequantize_qsymm16(int16_t value, const QuantizationInfo &qinfo) +{ + return dequantize_qsymm16(value, qinfo.uniform()); +} + } // namespace arm_compute #endif /*__ARM_COMPUTE_QUANTIZATION_INFO_H__ */
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