IVGCVSW-7555 Restructure Delegate

* New folders created:
  * common is for common code where TfLite API is not used
  * classic is for existing delegate implementations
  * opaque is for new opaque delegate implementation,
  * tests is for shared between existing Delegate and Opaque Delegate which have test utils to work which delegate to use.
* Existing delegate is built to libarmnnDelegate.so and opaque delegate is built as libarmnnOpaqueDelegate.so
* Opaque structure is introduced but no API is added yet.
* CmakeList.txt and delegate/CMakeList.txt have been modified and 2 new CmakeList.txt added
* Rename BUILD_ARMNN_TFLITE_DELEGATE as BUILD_CLASSIC_DELEGATE
* Rename BUILD_ARMNN_TFLITE_OPAQUE_DELEGATE as BUILD_OPAQUE_DELEGATE

Signed-off-by: Teresa Charlin <teresa.charlinreyes@arm.com>
Change-Id: Ib682b9ad0ac8d8acdc4ec6d9099bb0008a9fe8ed

1 files changed, 3 insertions, 138 deletions

diff --git a/delegate/include/armnn_delegate.hpp b/delegate/include/armnn_delegate.hpp
index 9cfc397550..fd071eb24a 100644
--- a/delegate/include/armnn_delegate.hpp
+++ b/delegate/include/armnn_delegate.hpp
@@ -3,141 +3,6 @@
 // SPDX-License-Identifier: MIT
 //
 
-#pragma once
-
-#include "DelegateOptions.hpp"
-
-#include <tensorflow/lite/builtin_ops.h>
-#include <tensorflow/lite/c/builtin_op_data.h>
-#include <tensorflow/lite/c/common.h>
-#include <tensorflow/lite/minimal_logging.h>
-#include <tensorflow/lite/version.h>
-
-#if TF_MAJOR_VERSION > 2 || (TF_MAJOR_VERSION == 2 && TF_MINOR_VERSION > 3)
-#define ARMNN_POST_TFLITE_2_3
-#endif
-
-#if TF_MAJOR_VERSION > 2 || (TF_MAJOR_VERSION == 2 && TF_MINOR_VERSION > 4)
-#define ARMNN_POST_TFLITE_2_4
-#endif
-
-#if TF_MAJOR_VERSION > 2 || (TF_MAJOR_VERSION == 2 && TF_MINOR_VERSION > 5)
-#define ARMNN_POST_TFLITE_2_5
-#endif
-
-namespace armnnDelegate
-{
-
-struct DelegateData
-{
-    DelegateData(const std::vector<armnn::BackendId>& backends)
-        : m_Backends(backends)
-        , m_Network(nullptr, nullptr)
-    {}
-
-    const std::vector<armnn::BackendId>       m_Backends;
-    armnn::INetworkPtr                        m_Network;
-    std::vector<armnn::IOutputSlot*>          m_OutputSlotForNode;
-};
-
-// Forward decleration for functions initializing the ArmNN Delegate
-DelegateOptions TfLiteArmnnDelegateOptionsDefault();
-
-TfLiteDelegate* TfLiteArmnnDelegateCreate(armnnDelegate::DelegateOptions options);
-
-void TfLiteArmnnDelegateDelete(TfLiteDelegate* tfLiteDelegate);
-
-TfLiteStatus DoPrepare(TfLiteContext* context, TfLiteDelegate* delegate);
-
-/// ArmNN Delegate
-class Delegate
-{
-    friend class ArmnnSubgraph;
-public:
-    explicit Delegate(armnnDelegate::DelegateOptions options);
-
-    TfLiteIntArray* IdentifyOperatorsToDelegate(TfLiteContext* context);
-
-    TfLiteDelegate* GetDelegate();
-
-    /// Retrieve version in X.Y.Z form
-    static const std::string GetVersion();
-
-private:
-    /**
-     * Returns a pointer to the armnn::IRuntime* this will be shared by all armnn_delegates.
-     */
-    armnn::IRuntime* GetRuntime(const armnn::IRuntime::CreationOptions& options)
-    {
-        static armnn::IRuntimePtr instance = armnn::IRuntime::Create(options);
-        // Instantiated on first use.
-        return instance.get();
-    }
-
-    TfLiteDelegate m_Delegate = {
-        reinterpret_cast<void*>(this),  // .data_
-        DoPrepare,                      // .Prepare
-        nullptr,                        // .CopyFromBufferHandle
-        nullptr,                        // .CopyToBufferHandle
-        nullptr,                        // .FreeBufferHandle
-        kTfLiteDelegateFlagsNone,       // .flags
-        nullptr,                        // .opaque_delegate_builder
-    };
-
-    /// ArmNN Runtime pointer
-    armnn::IRuntime* m_Runtime;
-    /// ArmNN Delegate Options
-    armnnDelegate::DelegateOptions m_Options;
-};
-
-/// ArmnnSubgraph class where parsing the nodes to ArmNN format and creating the ArmNN Graph
-class ArmnnSubgraph
-{
-public:
-    static ArmnnSubgraph* Create(TfLiteContext* tfLiteContext,
-                                 const TfLiteDelegateParams* parameters,
-                                 const Delegate* delegate);
-
-    TfLiteStatus Prepare(TfLiteContext* tfLiteContext);
-
-    TfLiteStatus Invoke(TfLiteContext* tfLiteContext, TfLiteNode* tfLiteNode);
-
-    static TfLiteStatus VisitNode(DelegateData& delegateData,
-                                  TfLiteContext* tfLiteContext,
-                                  TfLiteRegistration* tfLiteRegistration,
-                                  TfLiteNode* tfLiteNode,
-                                  int nodeIndex);
-
-private:
-    ArmnnSubgraph(armnn::NetworkId networkId,
-                  armnn::IRuntime* runtime,
-                  std::vector<armnn::BindingPointInfo>& inputBindings,
-                  std::vector<armnn::BindingPointInfo>& outputBindings)
-        : m_NetworkId(networkId), m_Runtime(runtime), m_InputBindings(inputBindings), m_OutputBindings(outputBindings)
-    {}
-
-    static TfLiteStatus AddInputLayer(DelegateData& delegateData,
-                                      TfLiteContext* tfLiteContext,
-                                      const TfLiteIntArray* inputs,
-                                      std::vector<armnn::BindingPointInfo>& inputBindings);
-
-    static TfLiteStatus AddOutputLayer(DelegateData& delegateData,
-                                       TfLiteContext* tfLiteContext,
-                                       const TfLiteIntArray* outputs,
-                                       std::vector<armnn::BindingPointInfo>& outputBindings);
-
-
-    /// The Network Id
-    armnn::NetworkId m_NetworkId;
-    /// ArmNN Rumtime
-    armnn::IRuntime* m_Runtime;
-
-    // Binding information for inputs and outputs
-    std::vector<armnn::BindingPointInfo> m_InputBindings;
-    std::vector<armnn::BindingPointInfo> m_OutputBindings;
-
-};
-
-} // armnnDelegate namespace
-
-
+#include <armnn/delegate/classic/include/armnn_delegate.hpp>
+#pragma message("armnn/delegate/include/armnn_delegate.hpp has been deprecated, it is due for removal in"\
+                " 24.02 release. Please use public interface ")
\ No newline at end of file