CMakeLists.txt

# Assume this project is invoked by emcmake.
cmake_minimum_required(VERSION 3.16)

set(BUILD_TARGET "tinyusdz")

if (NOT EMSCRIPTEN)
  message(FATAL "Must be compiled with emscripten")
endif()

project(${BUILD_TARGET} CXX C)

set(CMAKE_CXX_STANDARD 14)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)

# cmake modules
list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/../cmake)
#list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/../../cmake/sanitizers)
#find_package(Sanitizers) # Address sanitizer (-DSANITIZE_ADDRESS=ON)

if (CMAKE_BUILD_TYPE STREQUAL "MinSizeRel")
  # Use Oz to reduce size further than Os
  set(CMAKE_CXX_FLAGS_MINSIZEREL "-Oz -DNDEBUG")
endif()

option(TINYUSDZ_WASM_DEMODEV "Demo developer mode(install WASM modules to demo/node_modules/tinyusdz." OFF)
if (TINYUSDZ_WASM_DEMODEV)
  message(STATUS "demodev build")
endif()

# [tinyusdz]
add_subdirectory(../  tinyusdz)

list(
  APPEND
  SOURCES
  binding.cc
)


add_executable(${BUILD_TARGET} ${SOURCES})
add_sanitizers(${BUILD_TARGET})

target_compile_options(${BUILD_TARGET} PRIVATE ${EXT_COMPILE_OPTIONS})

# tinyusdz dir
target_include_directories(${BUILD_TARGET}
                           PRIVATE "${PROJECT_SOURCE_DIR}/../src/")


target_link_libraries(${BUILD_TARGET} PRIVATE tinyusdz::tinyusdz_static
                                              ${EXT_LIBRARIES} PUBLIC ${CMAKE_DL_LIBS})

source_group("Source Files" FILES ${SOURCES})

if (EMSCRIPTEN)

    if (TINYUSDZ_WASM_DEMODEV)
      set(OUTPUT_WASM_DIR ${PROJECT_SOURCE_DIR}/demo/node_modules/tinyusdz/)
    else()
      set(OUTPUT_WASM_DIR ${PROJECT_SOURCE_DIR}/js/src/tinyusdz/)
    endif()

    set_target_properties(
        ${BUILD_TARGET}
        PROPERTIES OUTPUT_NAME tinyusdz
                   SUFFIX ".js"
                   RUNTIME_OUTPUT_DIRECTORY ${OUTPUT_WASM_DIR})
    #set(CMAKE_EXECUTABLE_SUFFIX ".html")
endif()

# TODO: Adjust memory size. 
# 512kB stack
# NOTE: ASYNCIFY increase the wasm size to around 4~6 MB
set_target_properties(${BUILD_TARGET} PROPERTIES LINK_FLAGS "-Oz -sENVIRONMENT='web,worker' -sSTACK_SIZE=512000 -sASSERTIONS -s ALLOW_MEMORY_GROWTH=1 -sMODULARIZE=1 -sEXPORT_ES6 -sINVOKE_RUN=0 --bind")

# ENVIRONMENT=web
# SINGLE_FILE=1