From 8f9588721cbb7356b03a714c97d6b3a9a6e89438 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=89anna=20=C3=93=20Cath=C3=A1in?=
 <eanna.ocathain@arm.com>
Date: Wed, 15 Sep 2021 09:32:30 +0100
Subject: MLECO-2082: Adding visual wake word use case MLECO-2083: Refactoring
 img_class and visual wake word
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*Added source files for visual wake word
*Added tests
*Added docs
*Added new images for visual wake word demo
*Refactored common functions in img_class, visual wake word and other usecases

Change-Id: Ibd25854e19a5517f940a8d3086a5d4835fab89e9
Signed-off-by: Éanna Ó Catháin <eanna.ocathain@arm.com>
---
 source/use_case/vww/src/MainLoop.cc | 91 +++++++++++++++++++++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100644 source/use_case/vww/src/MainLoop.cc

(limited to 'source/use_case/vww/src/MainLoop.cc')

diff --git a/source/use_case/vww/src/MainLoop.cc b/source/use_case/vww/src/MainLoop.cc
new file mode 100644
index 0000000..f026cc2
--- /dev/null
+++ b/source/use_case/vww/src/MainLoop.cc
@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2021 Arm Limited. All rights reserved.
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "hal.h"                    /* Brings in platform definitions. */
+#include "Classifier.hpp"           /* Classifier. */
+#include "InputFiles.hpp"           /* For input images. */
+#include "Labels.hpp"               /* For label strings. */
+#include "VisualWakeWordModel.hpp" /* Model class for running inference. */
+#include "UseCaseHandler.hpp"       /* Handlers for different user options. */
+#include "UseCaseCommonUtils.hpp"   /* Utils functions. */
+
+using ViusalWakeWordClassifier = arm::app::Classifier;
+
+void main_loop(hal_platform &platform)
+{
+    arm::app::VisualWakeWordModel model;  /* Model wrapper object. */
+
+    /* Load the model. */
+    if (!model.Init()) {
+        printf_err("Failed to initialise model\n");
+        return;
+    }
+
+    /* Instantiate application context. */
+    arm::app::ApplicationContext caseContext;
+
+    arm::app::Profiler profiler{&platform, "vww"};
+    caseContext.Set<arm::app::Profiler&>("profiler", profiler);
+    caseContext.Set<hal_platform&>("platform", platform);
+    caseContext.Set<arm::app::Model&>("model", model);
+    caseContext.Set<uint32_t>("imgIndex", 0);
+
+    ViusalWakeWordClassifier classifier;  /* Classifier wrapper object. */
+    caseContext.Set<arm::app::Classifier&>("classifier", classifier);
+
+    std::vector <std::string> labels;
+    GetLabelsVector(labels);
+    caseContext.Set<const std::vector <std::string>&>("labels", labels);
+
+    /* Loop. */
+    bool executionSuccessful = true;
+    constexpr bool bUseMenu = NUMBER_OF_FILES > 1 ? true : false;
+    do {
+        int menuOption = common::MENU_OPT_RUN_INF_NEXT;
+        if (bUseMenu) { 
+            DisplayCommonMenu();
+            menuOption = arm::app::ReadUserInputAsInt(platform);
+            printf("\n");
+        }
+
+        switch (menuOption) {
+            case common::MENU_OPT_RUN_INF_NEXT:
+                executionSuccessful = ClassifyImageHandler(caseContext, caseContext.Get<uint32_t>("imgIndex"), false);
+                break;
+            case common::MENU_OPT_RUN_INF_CHOSEN: {
+                printf("    Enter the image index [0, %d]: ", NUMBER_OF_FILES-1);
+                auto imgIndex = static_cast<uint32_t>(arm::app::ReadUserInputAsInt(platform));
+                executionSuccessful = ClassifyImageHandler(caseContext, imgIndex, false);
+                break;
+            }
+            case common::MENU_OPT_RUN_INF_ALL:
+                executionSuccessful = ClassifyImageHandler(caseContext, caseContext.Get<uint32_t>("imgIndex"), true);
+                break;
+            case common::MENU_OPT_SHOW_MODEL_INFO: {
+                executionSuccessful = model.ShowModelInfoHandler();
+                break;
+            }
+            case common::MENU_OPT_LIST_IFM:
+                executionSuccessful = ListFilesHandler(caseContext);
+                break;
+            default:
+                printf("Incorrect choice, try again.");
+                break;
+        }
+    } while (executionSuccessful && bUseMenu);
+    info("Main loop terminated.\n");
+
+}
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