#
# 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
#
#      https://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.

if(TARGET xnnpack OR xnnpack_POPULATED)
  return()
endif()

include(OverridableFetchContent)

OverridableFetchContent_Declare(
  xnnpack
  GIT_REPOSITORY https://github.com/google/XNNPACK
  # Sync with tensorflow/workspace2.bzl
  GIT_TAG efa2e754e390ab3024f6aa617385cb28bdfa9969
  GIT_PROGRESS TRUE
  PREFIX "${CMAKE_BINARY_DIR}"
  SOURCE_DIR "${CMAKE_BINARY_DIR}/xnnpack"
)
OverridableFetchContent_GetProperties(xnnpack)
if(NOT xnnpack_POPULATED)
  OverridableFetchContent_Populate(xnnpack)
endif()

# May consider setting XNNPACK_USE_SYSTEM_LIBS if we want to control all
# dependencies by TFLite.
set(XNNPACK_BUILD_TESTS OFF CACHE BOOL "Disable XNNPACK test.")
set(XNNPACK_BUILD_BENCHMARKS OFF CACHE BOOL "Disable XNNPACK benchmarks.")

# The following line adds project of PTHREADPOOL, FP16 and XNNPACK which are
# needed to compile XNNPACK delegate of TFLite.
# Note, we introduce an intermediate subdirectory, see ${TFLITE_SOURCE_DIR}/tools/cmake/modules/xnnpack/CMakeLists.txt
# for details.
add_subdirectory(${TFLITE_SOURCE_DIR}/tools/cmake/modules/xnnpack)

include_directories(
  AFTER
   "${PTHREADPOOL_SOURCE_DIR}/include"
   "${FP16_SOURCE_DIR}/include"
   "${XNNPACK_SOURCE_DIR}/include"
   "${XNNPACK_SOURCE_DIR}"
   "${CPUINFO_SOURCE_DIR}/"
)