MLECO-3183: Refactoring application sources

Platform agnostic application sources are moved into application
api module with their own independent CMake projects.

Changes for MLECO-3080 also included - they create CMake projects
individial API's (again, platform agnostic) that dependent on the
common logic. The API for KWS_API "joint" API has been removed and
now the use case relies on individual KWS, and ASR API libraries.

Change-Id: I1f7748dc767abb3904634a04e0991b74ac7b756d
Signed-off-by: Kshitij Sisodia <kshitij.sisodia@arm.com>
diff --git a/tests/use_case/kws_asr/InferenceTestMicroNetKws.cc b/tests/use_case/kws_asr/InferenceTestMicroNetKws.cc
index a493021..4ba4693 100644
--- a/tests/use_case/kws_asr/InferenceTestMicroNetKws.cc
+++ b/tests/use_case/kws_asr/InferenceTestMicroNetKws.cc
@@ -17,10 +17,21 @@
 #include "MicroNetKwsModel.hpp"
 #include "TestData_kws.hpp"
 #include "TensorFlowLiteMicro.hpp"
+#include "BufAttributes.hpp"
 
 #include <catch.hpp>
 #include <random>
 
+namespace arm {
+    namespace app {
+        static uint8_t  tensorArena[ACTIVATION_BUF_SZ] ACTIVATION_BUF_ATTRIBUTE;
+        namespace kws {
+            extern uint8_t* GetModelPointer();
+            extern size_t GetModelLen();
+        }
+    } /* namespace app */
+} /* namespace arm */
+
 namespace test {
 namespace kws {
 
@@ -75,7 +86,10 @@
     arm::app::MicroNetKwsModel model{};
 
     REQUIRE_FALSE(model.IsInited());
-    REQUIRE(model.Init());
+    REQUIRE(model.Init(arm::app::tensorArena,
+                    sizeof(arm::app::tensorArena),
+                    arm::app::kws::GetModelPointer(),
+                    arm::app::kws::GetModelLen()));
     REQUIRE(model.IsInited());
 
     REQUIRE(RunInferenceRandom(model));
@@ -91,7 +105,10 @@
             arm::app::MicroNetKwsModel model{};
 
             REQUIRE_FALSE(model.IsInited());
-            REQUIRE(model.Init());
+            REQUIRE(model.Init(arm::app::tensorArena,
+                    sizeof(arm::app::tensorArena),
+                    arm::app::kws::GetModelPointer(),
+                    arm::app::kws::GetModelLen()));
             REQUIRE(model.IsInited());
 
             TestInference<int8_t>(input_goldenFV, output_goldenFV, model);
@@ -101,4 +118,4 @@
 }
 
 } //namespace
-} //namespace
\ No newline at end of file
+} //namespace
diff --git a/tests/use_case/kws_asr/InferenceTestWav2Letter.cc b/tests/use_case/kws_asr/InferenceTestWav2Letter.cc
index 1c5f20a..5d30211 100644
--- a/tests/use_case/kws_asr/InferenceTestWav2Letter.cc
+++ b/tests/use_case/kws_asr/InferenceTestWav2Letter.cc
@@ -17,10 +17,22 @@
 #include "TensorFlowLiteMicro.hpp"
 #include "Wav2LetterModel.hpp"
 #include "TestData_asr.hpp"
+#include "BufAttributes.hpp"
 
 #include <catch.hpp>
 #include <random>
 
+namespace arm {
+    namespace app {
+        static uint8_t  tensorArena[ACTIVATION_BUF_SZ] ACTIVATION_BUF_ATTRIBUTE;
+
+        namespace asr {
+            extern uint8_t* GetModelPointer();
+            extern size_t GetModelLen();
+        }
+    } /* namespace app */
+} /* namespace arm */
+
 namespace test {
 namespace asr {
 
@@ -59,7 +71,10 @@
     arm::app::Wav2LetterModel model{};
 
     REQUIRE_FALSE(model.IsInited());
-    REQUIRE(model.Init());
+    REQUIRE(model.Init(arm::app::tensorArena,
+                       sizeof(arm::app::tensorArena),
+                       arm::app::asr::GetModelPointer(),
+                       arm::app::asr::GetModelLen()));
     REQUIRE(model.IsInited());
 
     REQUIRE(RunInferenceRandom(model));
@@ -98,7 +113,10 @@
             arm::app::Wav2LetterModel model{};
 
             REQUIRE_FALSE(model.IsInited());
-            REQUIRE(model.Init());
+            REQUIRE(model.Init(arm::app::tensorArena,
+                    sizeof(arm::app::tensorArena),
+                    arm::app::asr::GetModelPointer(),
+                    arm::app::asr::GetModelLen()));
             REQUIRE(model.IsInited());
 
             TestInference<int8_t>(input_goldenFV, output_goldenFV, model);
diff --git a/tests/use_case/kws_asr/InitModels.cc b/tests/use_case/kws_asr/InitModels.cc
index 97aa092..85841a3 100644
--- a/tests/use_case/kws_asr/InitModels.cc
+++ b/tests/use_case/kws_asr/InitModels.cc
@@ -16,9 +16,25 @@
  */
 #include "MicroNetKwsModel.hpp"
 #include "Wav2LetterModel.hpp"
+#include "BufAttributes.hpp"
 
 #include <catch.hpp>
 
+namespace arm {
+    namespace app {
+        static uint8_t  tensorArena[ACTIVATION_BUF_SZ] ACTIVATION_BUF_ATTRIBUTE;
+
+        namespace asr {
+            extern uint8_t* GetModelPointer();
+            extern size_t GetModelLen();
+        }
+        namespace kws {
+            extern uint8_t* GetModelPointer();
+            extern size_t GetModelLen();
+        }
+    } /* namespace app */
+} /* namespace arm */
+
 /* Skip this test, Wav2LetterModel if not Vela optimized but only from ML-zoo will fail. */
 TEST_CASE("Init two Models", "[.]")
 {
@@ -35,13 +51,20 @@
     //arm::app::Wav2LetterModel model2;     /* model2. */
 
     /* Load/initialise the first model. */
-    REQUIRE(model1.Init());
+    REQUIRE(model1.Init(arm::app::tensorArena,
+                        sizeof(arm::app::tensorArena),
+                        arm::app::kws::GetModelPointer(),
+                        arm::app::kws::GetModelLen()));
 
     /* Allocator instance should have been created. */
     REQUIRE(nullptr != model1.GetAllocator());
 
     /* Load the second model using the same allocator as model 1. */
-    REQUIRE(model2.Init(model1.GetAllocator()));
+    REQUIRE(model2.Init(arm::app::tensorArena,
+                        sizeof(arm::app::tensorArena),
+                        arm::app::asr::GetModelPointer(),
+                        arm::app::asr::GetModelLen(),
+                        model1.GetAllocator()));
 
     /* Make sure they point to the same allocator object. */
     REQUIRE(model1.GetAllocator() == model2.GetAllocator());
@@ -49,4 +72,4 @@
     /* Both models should report being initialised. */
     REQUIRE(true == model1.IsInited());
     REQUIRE(true == model2.IsInited());
-}
\ No newline at end of file
+}
diff --git a/tests/use_case/kws_asr/Wav2LetterPostprocessingTest.cc b/tests/use_case/kws_asr/Wav2LetterPostprocessingTest.cc
index e343b66..d2071ea 100644
--- a/tests/use_case/kws_asr/Wav2LetterPostprocessingTest.cc
+++ b/tests/use_case/kws_asr/Wav2LetterPostprocessingTest.cc
@@ -17,11 +17,27 @@
 #include "Wav2LetterPostprocess.hpp"
 #include "Wav2LetterModel.hpp"
 #include "ClassificationResult.hpp"
+#include "BufAttributes.hpp"
 
 #include <algorithm>
 #include <catch.hpp>
 #include <limits>
 
+namespace arm {
+    namespace app {
+        static uint8_t  tensorArena[ACTIVATION_BUF_SZ] ACTIVATION_BUF_ATTRIBUTE;
+
+        namespace asr {
+            extern uint8_t* GetModelPointer();
+            extern size_t GetModelLen();
+        }
+        namespace kws {
+            extern uint8_t* GetModelPointer();
+            extern size_t GetModelLen();
+        }
+    } /* namespace app */
+} /* namespace arm */
+
 template <typename T>
 static TfLiteTensor GetTestTensor(
         std::vector<int>&      shape,
@@ -51,7 +67,10 @@
         const uint32_t outputCtxLen = 5;
         arm::app::AsrClassifier classifier;
         arm::app::Wav2LetterModel model;
-        model.Init();
+        model.Init(arm::app::tensorArena,
+                   sizeof(arm::app::tensorArena),
+                   arm::app::asr::GetModelPointer(),
+                   arm::app::asr::GetModelLen());
         std::vector<std::string> dummyLabels = {"a", "b", "$"};
         const uint32_t blankTokenIdx = 2;
         std::vector<arm::app::ClassificationResult> dummyResult;
@@ -71,7 +90,10 @@
         const uint32_t outputCtxLen = 5;
         arm::app::AsrClassifier classifier;
         arm::app::Wav2LetterModel model;
-        model.Init();
+        model.Init(arm::app::tensorArena,
+                    sizeof(arm::app::tensorArena),
+                   arm::app::asr::GetModelPointer(),
+                   arm::app::asr::GetModelLen());
         std::vector<std::string> dummyLabels = {"a", "b", "$"};
         const uint32_t blankTokenIdx = 2;
         std::vector<arm::app::ClassificationResult> dummyResult;
@@ -102,7 +124,10 @@
     std::vector<int> tensorShape = {1, 1, nRows, nCols};
     arm::app::AsrClassifier classifier;
     arm::app::Wav2LetterModel model;
-    model.Init();
+    model.Init(arm::app::tensorArena,
+                    sizeof(arm::app::tensorArena),
+                    arm::app::asr::GetModelPointer(),
+                    arm::app::asr::GetModelLen());
     std::vector<std::string> dummyLabels = {"a", "b", "$"};
     std::vector<arm::app::ClassificationResult> dummyResult;