1 files changed, 73 insertions, 0 deletions
diff --git a/src/armnn/layers/ShapeLayer.cpp b/src/armnn/layers/ShapeLayer.cpp
new file mode 100644
index 0000000000..4193fa9aab
--- /dev/null
+++ b/src/armnn/layers/ShapeLayer.cpp
@@ -0,0 +1,73 @@
+//
+// Copyright © 2021 Arm Ltd and Contributors. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#include "ShapeLayer.hpp"
+
+#include "LayerCloneBase.hpp"
+
+#include <armnn/TypesUtils.hpp>
+#include <armnn/utility/NumericCast.hpp>
+
+#include <backendsCommon/WorkloadData.hpp>
+#include <backendsCommon/WorkloadFactory.hpp>
+
+namespace armnn
+{
+
+ShapeLayer::ShapeLayer(const char* name)
+    : Layer(1, 1, LayerType::Shape, name)
+{
+}
+
+std::unique_ptr<IWorkload> ShapeLayer::CreateWorkload(const IWorkloadFactory& factory) const
+{
+    ShapeQueueDescriptor descriptor;
+    SetAdditionalInfo(descriptor);
+
+    return factory.CreateShape(descriptor, PrepInfoAndDesc(descriptor));
+}
+
+ShapeLayer* ShapeLayer::Clone(Graph& graph) const
+{
+    return CloneBase<ShapeLayer>(graph, GetName());
+}
+
+void ShapeLayer::ValidateTensorShapesFromInputs()
+{
+    VerifyLayerConnections(1, CHECK_LOCATION());
+
+    const TensorShape& outputShape = GetOutputSlot(0).GetTensorInfo().GetShape();
+
+    VerifyShapeInferenceType(outputShape, m_ShapeInferenceMethod);
+
+    auto inferredShape = InferOutputShapes({ GetInputSlot(0).GetConnection()->GetTensorInfo().GetShape() });
+
+    ARMNN_ASSERT(inferredShape.size() == 1);
+
+    ValidateAndCopyShape(outputShape, inferredShape[0], m_ShapeInferenceMethod, "ShapeLayer");
+}
+
+std::vector<TensorShape> ShapeLayer::InferOutputShapes(const std::vector<TensorShape>& inputShapes) const
+{
+    IgnoreUnused(inputShapes);
+    ARMNN_ASSERT(inputShapes.size() == 1);
+
+    TensorShape outputShape({ inputShapes[0].GetNumDimensions()} );
+
+    return std::vector<TensorShape>({ outputShape });
+}
+
+void ShapeLayer::Accept(ILayerVisitor& visitor) const
+{
+    IgnoreUnused(visitor);
+    throw armnn::Exception("ShapeLayer VisitShapeLayer is not implemented");
+}
+
+void ShapeLayer::ExecuteStrategy(IStrategy& strategy) const
+{
+    strategy.ExecuteStrategy(this, BaseDescriptor(), {}, GetName());
+}
+
+} // namespace armnn