1 files changed, 46 insertions, 0 deletions
diff --git a/src/armnn/layers/ConstantLayer.cpp b/src/armnn/layers/ConstantLayer.cpp
new file mode 100644
index 0000000000..937d38a31d
--- /dev/null
+++ b/src/armnn/layers/ConstantLayer.cpp
@@ -0,0 +1,46 @@
+//
+// Copyright © 2017 Arm Ltd. All rights reserved.
+// See LICENSE file in the project root for full license information.
+//
+#include "ConstantLayer.hpp"
+#include "LayerCloneBase.hpp"
+
+#include <armnn/TypesUtils.hpp>
+#include <backends/CpuTensorHandle.hpp>
+#include <backends/WorkloadData.hpp>
+#include <backends/WorkloadFactory.hpp>
+
+namespace armnn
+{
+
+ConstantLayer::ConstantLayer(const std::shared_ptr<ScopedCpuTensorHandle>& input, const char* name)
+    : Layer(0, 1, LayerType::Constant, name)
+    , m_LayerOutput(input)
+{
+}
+
+std::unique_ptr<IWorkload> ConstantLayer::CreateWorkload(const Graph& graph,
+    const IWorkloadFactory& factory) const
+{
+    ConstantQueueDescriptor descriptor;
+    descriptor.m_LayerOutput = m_LayerOutput.get();
+    return factory.CreateConstant(descriptor, PrepInfoAndDesc(descriptor, graph));
+}
+
+ConstantLayer* ConstantLayer::Clone(Graph& graph) const
+{
+    // Cloned layers share the same layer output object
+    return CloneBase<ConstantLayer>(graph, m_LayerOutput, GetName());
+}
+
+void ConstantLayer::ValidateTensorShapesFromInputs()
+{
+    // get the output shape from the value of the constant layer
+    TensorShape const& outShape = m_LayerOutput->GetTensorInfo().GetShape();
+    ConditionalThrowIfNotEqual<LayerValidationException>(
+        "ConstantLayer: TensorShape set on OutputSlot[0] does not match the inferred shape.",
+        GetOutputSlot(0).GetTensorInfo().GetShape(),
+        outShape);
+}
+
+} // namespace armnn