# #############################################################################
# Copyright (c) 2020 - present Advanced Micro Devices, Inc. All rights reserved.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
# ############################################################################

# The ROCm platform requires Ubuntu 16.04 or Fedora 24, which has cmake 3.5
cmake_minimum_required( VERSION 3.5 )

# We use C++14 features, this will add compile option: -std=c++14
set( CMAKE_CXX_STANDARD 14 )

# Consider removing this in the future
# This should appear before the project command, because it does not use FORCE
if( WIN32 )
  set( CMAKE_INSTALL_PREFIX "${PROJECT_BINARY_DIR}/package" CACHE PATH
    "Install path prefix, prepended onto install directories" )
else()
  set( CMAKE_INSTALL_PREFIX "/opt/rocm" CACHE PATH
    "Install path prefix, prepended onto install directories" )
endif()


# Workarounds..
list( APPEND CMAKE_PREFIX_PATH /opt/rocm/llvm /opt/rocm )
list( APPEND CMAKE_MODULE_PATH /opt/rocm/hip/cmake )

# This has to be initialized before the project() command appears
# Set the default of CMAKE_BUILD_TYPE to be release, unless user specifies with -D.
# MSVC_IDE does not use CMAKE_BUILD_TYPE
if( NOT DEFINED CMAKE_CONFIGURATION_TYPES AND NOT DEFINED CMAKE_BUILD_TYPE )
  set( CMAKE_BUILD_TYPE Release CACHE STRING "Choose the type of build, options are: None Debug Release RelWithDebInfo MinSizeRel." )
endif()

project( hipfft LANGUAGES CXX )

# Build options
option( BUILD_SHARED_LIBS "Build ${PROJECT_NAME} as a shared library" ON )
option( BUILD_VERBOSE "Output additional build information" OFF )

set( BUILD_WITH_COMPILER "HOST-default" CACHE INTERNAL
     "Build ${PROJECT_NAME} with compiler HIP-clang, HIP-nvcc, or just the host default compiler, eg g++")
set( BUILD_WITH_LIB "ROCM" CACHE STRING "Build ${PROJECT_NAME} with ROCM or CUDA libraries" )

option( BUILD_CLIENTS_TESTS "Build ${PROJECT_NAME} tests (requires 3rd dependencies)" OFF )
option( BUILD_CLIENTS_SAMPLES "Build examples" OFF )
option(BUILD_ADDRESS_SANITIZER "Build with address sanitizer enabled" OFF)

# Set internal BUILD_WITH_COMPILER.
if( NOT CMAKE_CXX_COMPILER MATCHES ".*/hipcc$" )
  set( BUILD_WITH_COMPILER "HOST-default" )
else()
  if( $ENV{HIP_PLATFORM} MATCHES "nvidia" )
    set( BUILD_WITH_COMPILER "HIP-nvcc" )
  else()
    set( BUILD_WITH_COMPILER "HIP-clang" )
    if( NOT BUILD_WITH_LIB STREQUAL "ROCM" )
      message( FATAL_ERROR "Detected HIP_COMPILER=clang, but BUILD_WITH_LIB is not ROCM!" )
    endif()
  endif()
endif()

string( TOUPPER "${BUILD_WITH_COMPILER}" BUILD_WITH_COMPILER )
string( TOUPPER "${BUILD_WITH_LIB}" BUILD_WITH_LIB )

if (BUILD_WITH_COMPILER STREQUAL "HIP-NVCC" )
  set (BUILD_WITH_LIB "CUDA")
  set( HIP_PLATFORM "nvidia" )

  set( CMAKE_CXX_COMPILE_OPTIONS_PIC "-Xcompiler=${CMAKE_CXX_COMPILE_OPTIONS_PIC}" )

  set( CMAKE_SHARED_LIBRARY_C_FLAGS "-Xlinker=${CMAKE_SHARED_LIBRARY_C_FLAGS}" )
  set( CMAKE_SHARED_LIBRARY_CXX_FLAGS "-Xlinker=${CMAKE_SHARED_LIBRARY_CXX_FLAGS}" )
  set( CMAKE_SHARED_LIBRARY_SONAME_C_FLAG "-Xlinker=-soname," )
  set( CMAKE_SHARED_LIBRARY_SONAME_CXX_FLAG "-Xlinker=-soname," )

  set( CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG "-Xlinker=-rpath," )
  set( CMAKE_SHARED_LIBRARY_RUNTIME_CXX_FLAG "-Xlinker=-rpath," )
  set( CMAKE_EXECUTABLE_RUNTIME_C_FLAG "-Xlinker=-rpath," )
  set( CMAKE_EXECUTABLE_RUNTIME_CXX_FLAG "-Xlinker=-rpath," )

  set( CMAKE_C_COMPILE_OPTIONS_VISIBILITY "-Xcompiler='${CMAKE_C_COMPILE_OPTIONS_VISIBILITY}'" )
  set( CMAKE_CXX_COMPILE_OPTIONS_VISIBILITY "-Xcompiler='${CMAKE_CXX_COMPILE_OPTIONS_VISIBILITY}'" )
  set( CMAKE_C_COMPILE_OPTIONS_VISIBILITY_INLINES_HIDDEN
    "-Xcompiler='${CMAKE_C_COMPILE_OPTIONS_VISIBILITY_INLINES_HIDDEN}'" )
  set( CMAKE_CXX_COMPILE_OPTIONS_VISIBILITY_INLINES_HIDDEN
    "-Xcompiler='${CMAKE_CXX_COMPILE_OPTIONS_VISIBILITY_INLINES_HIDDEN}'" )
else()
  if( BUILD_WITH_COMPILER STREQUAL "HIP-CLANG" )
    set( HIP_PLATFORM "amd" )
    set( HIP_COMPILER "clang" )
    set( AMDGPU_TARGETS gfx803;gfx900;gfx906;gfx908 CACHE STRING
      "List of specific machine types for library to target" )
    
    if(BUILD_ADDRESS_SANITIZER)
      set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address -shared-libasan")
      set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=address -shared-libasan")
      add_link_options(-fuse-ld=lld)
    endif()
  endif()
endif()

# Show the actual compiler(internal option)
message(STATUS "BUILD_WITH_COMPILER = " ${BUILD_WITH_COMPILER})

# Dependencies
include(cmake/dependencies.cmake)

# Version
set( VERSION_STRING "1.0.7" )
set( hipfft_SOVERSION 0.1 )

if( ROCM_FOUND )
  rocm_setup_version( VERSION ${VERSION_STRING} )
endif()

add_subdirectory( library )

# force library install path to lib (CentOS 7 defaults to lib64)
set( CMAKE_INSTALL_LIBDIR "lib" CACHE INTERNAL "Installation directory for libraries" FORCE )

# Build clients of the library
if( BUILD_CLIENTS )
  set( BUILD_CLIENTS_RIDER ON )
  set( BUILD_CLIENTS_SAMPLES ON )
  set( BUILD_CLIENTS_TESTS ON )
endif()

# Build clients of the library
if( BUILD_CLIENTS_RIDER OR BUILD_CLIENTS_SAMPLES OR BUILD_CLIENTS_TESTS )
  include( clients/cmake/build-options.cmake )
  add_subdirectory( clients )
endif()