IVGCVSW-2555 Add no-op implementation for Detection PostProcess

 * Added DetectionPostProcessQueueDescriptor to WorkloadData
 * Added CreateDetectionPostProcess function in WorkloadFactory.hpp
 * Added stub implementation of the CreateDetectionPostProcess
in workload factories
 * Added DetectionPostProcessLayer stub implementation
 * Added AddDetectionPostProcessLayer to Network
 * Added IsDetectionPostProcessSupported to LayerSupportBase

Change-Id: Ifc071b3b6b12877c997bdcc43d769c8f891d5c6c

4 files changed, 18 insertions, 0 deletions

diff --git a/include/armnn/Descriptors.hpp b/include/armnn/Descriptors.hpp
index 4497d0da9e..44235c7ada 100644
--- a/include/armnn/Descriptors.hpp
+++ b/include/armnn/Descriptors.hpp
@@ -327,6 +327,10 @@ struct DepthwiseConvolution2dDescriptor
     DataLayout m_DataLayout;
 };
 
+struct DetectionPostProcessDescriptor
+{
+};
+
 /// A NormalizationDescriptor for the NormalizationLayer.
 struct NormalizationDescriptor
 {
diff --git a/include/armnn/DescriptorsFwd.hpp b/include/armnn/DescriptorsFwd.hpp
index c1d21b5665..f0a4cffab7 100644
--- a/include/armnn/DescriptorsFwd.hpp
+++ b/include/armnn/DescriptorsFwd.hpp
@@ -13,6 +13,7 @@ struct BatchToSpaceNdDescriptor;
 struct Convolution2dDescriptor;
 struct DebugDescriptor;
 struct DepthwiseConvolution2dDescriptor;
+struct DetectionPostProcessDescriptor;
 struct FakeQuantizationDescriptor;
 struct FullyConnectedDescriptor;
 struct L2NormalizationDescriptor;
diff --git a/include/armnn/ILayerSupport.hpp b/include/armnn/ILayerSupport.hpp
index a603229b96..b5f9e6ac6c 100644
--- a/include/armnn/ILayerSupport.hpp
+++ b/include/armnn/ILayerSupport.hpp
@@ -77,6 +77,12 @@ public:
                      const Optional<TensorInfo>& biases,
                      Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
 
+    virtual bool IsDetectionPostProcessSupported(
+                     const TensorInfo& input0,
+                     const TensorInfo& input1,
+                     const DetectionPostProcessDescriptor& descriptor,
+                     Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
     virtual bool IsDivisionSupported(const TensorInfo& input0,
                                      const TensorInfo& input1,
                                      const TensorInfo& output,
diff --git a/include/armnn/INetwork.hpp b/include/armnn/INetwork.hpp
index 05962b95b7..1f7354dd35 100644
--- a/include/armnn/INetwork.hpp
+++ b/include/armnn/INetwork.hpp
@@ -127,6 +127,13 @@ public:
         const ConstTensor& biases,
         const char* name = nullptr) = 0;
 
+    /// Adds a Detection PostProcess layer to the network.
+    /// @param descriptor - Description of the Detection PostProcess layer.
+    /// @param name - Optional name for the layer.
+    /// @return - Interface for configuring the layer.
+    virtual IConnectableLayer* AddDetectionPostProcessLayer(
+        const DetectionPostProcessDescriptor& descriptor, const char* name = nullptr) =0;
+
     /// Adds a fully connected layer to the network.
     /// @param fullyConnectedDescriptor - Description of the fully connected layer.
     /// @param weights - Tensor for the weights data.