chore: import upstream snapshot with attribution

tensorflow/lite/acceleration/configuration/c/BUILD

@@ -0,0 +1,107 @@
+# Copyright 2021 The TensorFlow Authors. All Rights Reserved.
+#
+# 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.
+# ==============================================================================
+
+# C API for delegate plugins.
+
+load("//tensorflow:tensorflow.default.bzl", "get_compatible_with_portable")
+load("//tensorflow/lite:build_def.bzl", "tflite_copts", "tflite_copts_warnings")
+load(
+    "//tensorflow/lite/core/shims:cc_library_with_tflite.bzl",
+    "cc_library_with_tflite_with_c_headers_test",
+)
+
+# LINT.IfChange(tflite_acceleration_exported_headers)
+exports_files([
+    "delegate_plugin.h",
+    "gpu_plugin.h",
+    "xnnpack_plugin.h",
+])
+# LINT.ThenChange(
+#     ../../../core/acceleration/configuration/c/BUILD:tflite_acceleration_exported_headers,
+#     ../../../java/BUILD:tflite_acceleration_exported_headers
+# )
+
+package(
+    # copybara:uncomment default_applicable_licenses = ["//tensorflow:LICENSE"],
+    default_visibility = ["//visibility:private"],
+    licenses = ["notice"],
+)
+
+cc_library_with_tflite_with_c_headers_test(
+    name = "delegate_plugin",
+    hdrs = ["delegate_plugin.h"],
+    compatible_with = get_compatible_with_portable(),
+    copts = tflite_copts() + tflite_copts_warnings(),
+    generate_opaque_delegate_target = True,
+    visibility = ["//visibility:public"],
+    deps = ["//tensorflow/lite/core/acceleration/configuration/c:delegate_plugin"],
+)
+
+cc_library_with_tflite_with_c_headers_test(
+    name = "nnapi_plugin",
+    hdrs = ["nnapi_plugin.h"],
+    copts = tflite_copts() + tflite_copts_warnings(),
+    visibility = ["//visibility:public"],
+    deps = ["//tensorflow/lite/core/acceleration/configuration/c:nnapi_plugin"],
+)
+
+test_suite(
+    name = "nnapi_plugin_test",
+    tests = [
+        "//tensorflow/lite/core/acceleration/configuration/c:nnapi_plugin_test",
+    ],
+)
+
+cc_library_with_tflite_with_c_headers_test(
+    name = "gpu_plugin",
+    hdrs = ["gpu_plugin.h"],
+    copts = tflite_copts() + tflite_copts_warnings(),
+    visibility = ["//visibility:public"],
+    deps = ["//tensorflow/lite/core/acceleration/configuration/c:gpu_plugin"],
+)
+
+# For non-Android platforms, this should be built with '--copt=-DCL_DELEGATE_NO_GL'.
+# On non-supported platforms (i.e. non-Android platforms if -DCL_DELEGATE_NO_GL wasn't specified),
+# the test srcs are set to the empty list, so the test will succeed without testing anything.
+test_suite(
+    name = "gpu_plugin_test",
+    tests = [
+        "//tensorflow/lite/core/acceleration/configuration/c:gpu_plugin_test",
+    ],
+)
+
+cc_library_with_tflite_with_c_headers_test(
+    name = "xnnpack_plugin",
+    hdrs = ["xnnpack_plugin.h"],
+    compatible_with = get_compatible_with_portable(),
+    copts = tflite_copts() + tflite_copts_warnings(),
+    visibility = ["//visibility:public"],
+    deps = ["//tensorflow/lite/core/acceleration/configuration/c:xnnpack_plugin"],
+)
+
+test_suite(
+    name = "xnnpack_plugin_test",
+    tests = [
+        "//tensorflow/lite/core/acceleration/configuration/c:xnnpack_plugin_test",
+    ],
+)
+
+cc_library_with_tflite_with_c_headers_test(
+    name = "stable_delegate",
+    hdrs = ["stable_delegate.h"],
+    generate_opaque_delegate_target = True,
+    visibility = ["//visibility:public"],
+    deps = ["//tensorflow/lite/core/acceleration/configuration/c:stable_delegate"],
+)

tensorflow/lite/acceleration/configuration/c/delegate_plugin.h

@@ -0,0 +1,23 @@
+/* Copyright 2021 The TensorFlow Authors. All Rights Reserved.
+
+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.
+==============================================================================*/
+#ifndef TENSORFLOW_LITE_ACCELERATION_CONFIGURATION_C_DELEGATE_PLUGIN_H_
+#define TENSORFLOW_LITE_ACCELERATION_CONFIGURATION_C_DELEGATE_PLUGIN_H_
+
+/// For documentation, see
+/// third_party/tensorflow/lite/core/acceleration/configuration/c/delegate_plugin.h
+
+#include "tensorflow/lite/core/acceleration/configuration/c/delegate_plugin.h"
+
+#endif  // TENSORFLOW_LITE_ACCELERATION_CONFIGURATION_C_DELEGATE_PLUGIN_H_

tensorflow/lite/acceleration/configuration/c/gpu_plugin.h

@@ -0,0 +1,23 @@
+/* Copyright 2022 The TensorFlow Authors. All Rights Reserved.
+
+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.
+==============================================================================*/
+#ifndef TENSORFLOW_LITE_ACCELERATION_CONFIGURATION_C_GPU_PLUGIN_H_
+#define TENSORFLOW_LITE_ACCELERATION_CONFIGURATION_C_GPU_PLUGIN_H_
+
+/// For documentation, see
+/// third_party/tensorflow/lite/core/acceleration/configuration/c/gpu_plugin.h
+
+#include "tensorflow/lite/core/acceleration/configuration/c/gpu_plugin.h"
+
+#endif  // TENSORFLOW_LITE_ACCELERATION_CONFIGURATION_C_GPU_PLUGIN_H_

tensorflow/lite/acceleration/configuration/c/nnapi_plugin.h

@@ -0,0 +1,26 @@
+/* Copyright 2020 The TensorFlow Authors. All Rights Reserved.
+
+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.
+==============================================================================*/
+#ifndef TENSORFLOW_LITE_ACCELERATION_CONFIGURATION_C_NNAPI_PLUGIN_H_
+#define TENSORFLOW_LITE_ACCELERATION_CONFIGURATION_C_NNAPI_PLUGIN_H_
+
+/// WARNING: this header file is DEPRECATED.
+/// See https://developer.android.com/ndk/guides/neuralnetworks/migration-guide.
+
+/// For documentation, see
+/// third_party/tensorflow/lite/core/acceleration/configuration/c/nnapi_plugin.h
+
+#include "tensorflow/lite/core/acceleration/configuration/c/nnapi_plugin.h"
+
+#endif  // TENSORFLOW_LITE_ACCELERATION_CONFIGURATION_C_NNAPI_PLUGIN_H_

tensorflow/lite/acceleration/configuration/c/stable_delegate.h

@@ -0,0 +1,23 @@
+/* Copyright 2022 The TensorFlow Authors. All Rights Reserved.
+
+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.
+==============================================================================*/
+#ifndef TENSORFLOW_LITE_ACCELERATION_CONFIGURATION_C_STABLE_DELEGATE_H_
+#define TENSORFLOW_LITE_ACCELERATION_CONFIGURATION_C_STABLE_DELEGATE_H_
+
+/// For documentation, see
+/// third_party/tensorflow/lite/core/acceleration/configuration/c/stable_delegate.h
+
+#include "tensorflow/lite/core/acceleration/configuration/c/stable_delegate.h"
+
+#endif  // TENSORFLOW_LITE_ACCELERATION_CONFIGURATION_C_STABLE_DELEGATE_H_

tensorflow/lite/acceleration/configuration/c/xnnpack_plugin.h

@@ -0,0 +1,23 @@
+/* Copyright 2020 The TensorFlow Authors. All Rights Reserved.
+
+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.
+==============================================================================*/
+#ifndef TENSORFLOW_LITE_ACCELERATION_CONFIGURATION_C_XNNPACK_PLUGIN_H_
+#define TENSORFLOW_LITE_ACCELERATION_CONFIGURATION_C_XNNPACK_PLUGIN_H_
+
+/// For documentation, see
+/// third_party/tensorflow/lite/core/acceleration/configuration/c/xnnpack_plugin.h
+
+#include "tensorflow/lite/core/acceleration/configuration/c/xnnpack_plugin.h"
+
+#endif  // TENSORFLOW_LITE_ACCELERATION_CONFIGURATION_C_XNNPACK_PLUGIN_H_