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| author | Michele Di Giorgio <michele.digiorgio@arm.com> | 2019-10-09 15:32:39 +0100 |
|---|---|---|
| committer | Michele Di Giorgio <michele.digiorgio@arm.com> | 2019-10-30 14:44:46 +0000 |
| commit | df4cf57c7394265b27d051cb1cf0152c53659126 (patch) | |
| tree | 87da5d6abeff65b2cee55b63f73bb268776af560 /src/core/utils/quantization/AsymmHelpers.cpp | |
| parent | 8b72199f25487040713d1668c998fdde3707413c (diff) | |
| download | ComputeLibrary-df4cf57c7394265b27d051cb1cf0152c53659126.tar.gz | |
COMPMID-2306: CLDepthwiseConvolution: support for QUANT8_PER_CHANNEL_SYMM
Change-Id: I18c886400daa2dcba0b91011bc4e503d807a4732
Signed-off-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Reviewed-on: https://review.mlplatform.org/c/2143
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Giorgio Arena <giorgio.arena@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Diffstat (limited to 'src/core/utils/quantization/AsymmHelpers.cpp')
| -rw-r--r-- | src/core/utils/quantization/AsymmHelpers.cpp | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/core/utils/quantization/AsymmHelpers.cpp b/src/core/utils/quantization/AsymmHelpers.cpp index 42bd84db47..cdd48972eb 100644 --- a/src/core/utils/quantization/AsymmHelpers.cpp +++ b/src/core/utils/quantization/AsymmHelpers.cpp @@ -22,6 +22,7 @@ * SOFTWARE. */ #include "arm_compute/core/utils/quantization/AsymmHelpers.h" +#include "arm_compute/core/Helpers.h" #include <cmath> #include <limits> @@ -134,5 +135,26 @@ std::pair<int, int> get_min_max_values_from_quantized_data_type(DataType data_ty } return std::make_pair(min_quant_val, max_quant_val); } +void compute_quantized_multipliers_and_shifts(const ITensor *input, const ITensor *weights, const ITensor *output, int32_t *output_multipliers_ptr, int32_t *output_shifts_ptr) +{ + const unsigned int idx_c = get_data_layout_dimension_index(weights->info()->data_layout(), DataLayoutDimension::CHANNEL); + const unsigned int num_filters = is_data_type_quantized_per_channel(weights->info()->data_type()) ? weights->info()->dimension(idx_c) : 1; + + const UniformQuantizationInfo iq_info = input->info()->quantization_info().uniform(); + const QuantizationInfo wq_info = weights->info()->quantization_info(); + const UniformQuantizationInfo oq_info = output->info()->quantization_info().uniform(); + + for(unsigned int i = 0; i < num_filters; ++i) + { + int output_multiplier = 0; + int output_shift = 0; + const float multiplier = iq_info.scale * wq_info.scale()[i] / oq_info.scale; + ARM_COMPUTE_ERROR_ON(multiplier > 1.0f); + calculate_quantized_multiplier_less_than_one(multiplier, &output_multiplier, &output_shift); + + output_multipliers_ptr[i] = output_multiplier; + output_shifts_ptr[i] = output_shift; + } +} } // quantization } // arm_compute |