COMPMID-661: softmax-uint8 implementation (#16)

Change-Id: Iad11ce70a8a0878a48e445a092035c49c926cece
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/94855
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/tests/validation/CPP/SoftmaxLayer.cpp b/tests/validation/CPP/SoftmaxLayer.cpp
index eb7655078c..8e8cc1bd25 100644
--- a/tests/validation/CPP/SoftmaxLayer.cpp
+++ b/tests/validation/CPP/SoftmaxLayer.cpp
@@ -112,6 +112,18 @@ SimpleTensor<T> softmax_layer(const SimpleTensor<T> &src)
     return dst;
 }
 
+template <>
+SimpleTensor<uint8_t> softmax_layer<uint8_t>(const SimpleTensor<uint8_t> &src)
+{
+    // Note: Output quantization info should always have scale = 1/256 and offset = 0
+    const QuantizationInfo output_quantization_info = QuantizationInfo(1.f / 256, 0);
+
+    SimpleTensor<float>   src_tmp = convert_from_asymmetric(src);
+    SimpleTensor<float>   dst_tmp = softmax_layer<float>(src_tmp);
+    SimpleTensor<uint8_t> dst     = convert_to_asymmetric(dst_tmp, output_quantization_info);
+    return dst;
+}
+
 template SimpleTensor<float> softmax_layer(const SimpleTensor<float> &src);
 template SimpleTensor<half> softmax_layer(const SimpleTensor<half> &src);
 template SimpleTensor<qint8_t> softmax_layer(const SimpleTensor<qint8_t> &src);