From 5272980c2e87a483c0fbb45a559bb492eaf95e59 Mon Sep 17 00:00:00 2001
From: Prianka Liz Kariat <prianka.kariat@ymedialabs.com>
Date: Fri, 7 Apr 2023 00:57:19 +0530
Subject: [PATCH] Added MPPLandmarkHelpers

---
 .../ios/components/containers/utils/BUILD     | 11 ++++
 .../utils/sources/MPPLandmark+Helpers.h       | 33 ++++++++++++
 .../utils/sources/MPPLandmark+Helpers.mm      | 53 +++++++++++++++++++
 3 files changed, 97 insertions(+)
 create mode 100644 mediapipe/tasks/ios/components/containers/utils/sources/MPPLandmark+Helpers.h
 create mode 100644 mediapipe/tasks/ios/components/containers/utils/sources/MPPLandmark+Helpers.mm

diff --git a/mediapipe/tasks/ios/components/containers/utils/BUILD b/mediapipe/tasks/ios/components/containers/utils/BUILD
index 3f93c0f36..59431db13 100644
--- a/mediapipe/tasks/ios/components/containers/utils/BUILD
+++ b/mediapipe/tasks/ios/components/containers/utils/BUILD
@@ -73,3 +73,14 @@ objc_library(
         "//mediapipe/tasks/ios/components/containers:MPPDetection",
     ],
 )
+
+objc_library(
+    name = "MPPLandmarkHelpers",
+    srcs = ["sources/MPPLandmark+Helpers.mm"],
+    hdrs = ["sources/MPPLandmark+Helpers.h"],
+    deps = [
+        "//mediapipe/framework/formats:landmark_cc_proto",
+        "//mediapipe/tasks/ios/common/utils:NSStringHelpers",
+        "//mediapipe/tasks/ios/components/containers:MPPLandmark",
+    ],
+)
diff --git a/mediapipe/tasks/ios/components/containers/utils/sources/MPPLandmark+Helpers.h b/mediapipe/tasks/ios/components/containers/utils/sources/MPPLandmark+Helpers.h
new file mode 100644
index 000000000..63612f509
--- /dev/null
+++ b/mediapipe/tasks/ios/components/containers/utils/sources/MPPLandmark+Helpers.h
@@ -0,0 +1,33 @@
+// Copyright 2023 The MediaPipe Authors.
+//
+// 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 "mediapipe/framework/formats/landmark.pb.h"
+#import "mediapipe/tasks/ios/components/containers/sources/MPPLandmark.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface MPPLandmark (Helpers)
+
++ (MPPLandmark *)landmarkWithProto:(const mediapipe::Landmark &)landmarkProto;
+
+@end
+
+@interface MPPNormalizedLandmark (Helpers)
+
++ (MPPNormalizedLandmark *)normalizedLandmarkWithProto:
+    (const mediapipe::NormalizedLandmark &)normalizedLandmarProto;
+
+@end
+
+NS_ASSUME_NONNULL_END
diff --git a/mediapipe/tasks/ios/components/containers/utils/sources/MPPLandmark+Helpers.mm b/mediapipe/tasks/ios/components/containers/utils/sources/MPPLandmark+Helpers.mm
new file mode 100644
index 000000000..b94ff27ba
--- /dev/null
+++ b/mediapipe/tasks/ios/components/containers/utils/sources/MPPLandmark+Helpers.mm
@@ -0,0 +1,53 @@
+// Copyright 2023 The MediaPipe Authors.
+//
+// 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.
+
+#import "mediapipe/tasks/ios/components/containers/utils/sources/MPPLandmark+Helpers.h"
+
+#import "mediapipe/tasks/ios/common/utils/sources/NSString+Helpers.h"
+
+static const NSInteger kDefaultCategoryIndex = -1;
+
+namespace {
+using LandmarkProto = ::mediapipe::Landmark;
+using NormalizedLandmarkProto = ::mediapipe::NormalizedLandmark;
+}  // namespace
+
+@implementation MPPLandmark (Helpers)
+
++ (MPPLandmark *)landmarkWithProto:(const mediapipe::Landmark &)landmarkProto {
+  return [[MPPLandmark alloc]
+       initWithX:landmarkProto.x()
+               y:landmarkProto.y()
+               z:landmarkProto.z()
+      visibility:landmarkProto.has_visibility() ? @(landmarkProto.visibility()) : nil
+        presence:landmarkProto.has_presence() ? @(landmarkProto.presence()) : nil];
+}
+
+@end
+
+@implementation MPPNormalizedLandmark (Helpers)
+
++ (MPPNormalizedLandmark *)normalizedLandmarkWithProto:
+    (const mediapipe::NormalizedLandmark &)normalizedLandmarkProto {
+  return [[MPPNormalizedLandmark alloc]
+       initWithX:normalizedLandmarkProto.x()
+               y:normalizedLandmarkProto.y()
+               z:normalizedLandmarkProto.z()
+      visibility:normalizedLandmarkProto.has_visibility() ? @(normalizedLandmarkProto.visibility())
+                                                          : nil
+        presence:normalizedLandmarkProto.has_presence() ? @(normalizedLandmarkProto.presence())
+                                                        : nil];
+}
+
+@end