IVGCVSW-3025: Refactor reference Convolution2d workload

 * Refactored RefConvolution2dWorkload to support all DataTypes through Encoders and Decoders.
 * Added Convolute function to ConvImpl that uses Encoders and Decoders to support all DataTypes.
 * Deleted RefConvolution2dFloat32Workload and RefConvolution2dUint8Workload.

Signed-off-by: Mike Kelly <mike.kelly@arm.com>
Signed-off-by: Teresa Charlin <teresa.charlinreyes@arm.com>
Change-Id: Ic5ef0f499d08b948fa65fdee54b5f681fd0b1c05

1 files changed, 15 insertions, 0 deletions

diff --git a/src/backends/reference/workloads/BaseIterator.hpp b/src/backends/reference/workloads/BaseIterator.hpp
index 97af95a0eb..ab6de2b37f 100644
--- a/src/backends/reference/workloads/BaseIterator.hpp
+++ b/src/backends/reference/workloads/BaseIterator.hpp
@@ -123,6 +123,21 @@ public:
     }
 };
 
+class ScaledInt32Decoder : public TypedIterator<const int32_t, Decoder<float>>
+{
+public:
+    ScaledInt32Decoder(const int32_t* data, const float scale)
+        : TypedIterator(data), m_Scale(scale) {}
+
+    float Get() const override
+    {
+        return static_cast<float>(*m_Iterator) * m_Scale;
+    }
+
+private:
+    const float m_Scale;
+};
+
 class QASymm8Encoder : public TypedIterator<uint8_t, Encoder<float>>
 {
 public: