libragephoto/cmake/wasm.cmake

#[[**************************************************************************
* libragephoto RAGE Photo Parser
* Copyright (C) 2023-2024 Syping
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* This software is provided as-is, no warranties are given to you, we are not
* responsible for anything with use of the software, you are self responsible.
****************************************************************************]]

if (CMAKE_VERSION VERSION_GREATER_EQUAL "3.13.0")
    add_executable(ragephoto-wasm
        ${RAGEPHOTO_HEADERS}
        ${RAGEPHOTO_SOURCES}
    )
    set_target_properties(ragephoto-wasm PROPERTIES
        CXX_STANDARD ${RAGEPHOTO_CXX_STANDARD}
        CXX_STANDARD_REQUIRED ON
        PREFIX "lib"
        OUTPUT_NAME "ragephoto"
    )
    target_compile_definitions(ragephoto-wasm PRIVATE
        LIBRAGEPHOTO_LIBRARY
        LIBRAGEPHOTO_WASM
        ${LIBRAGEPHOTO_DEFINES}
    )
    target_link_options(ragephoto-wasm PRIVATE
        "SHELL:-O3"
        "SHELL:--no-entry"
        "SHELL:-s ALLOW_MEMORY_GROWTH=1"
        "SHELL:-s MODULARIZE=1"
        "SHELL:-s WASM=1"
        "SHELL:-s WASM_BIGINT=1"
        "SHELL:-s EXPORT_NAME=libragephotoModule"
        "SHELL:-s EXPORTED_FUNCTIONS=_free,_malloc"
        "SHELL:-s EXPORTED_RUNTIME_METHODS=ccall,cwrap"
    )
    target_include_directories(ragephoto-wasm PUBLIC
        "${ragephoto_BINARY_DIR}/include"
        "${ragephoto_SOURCE_DIR}/src/core"
    )
else()
    message(WARNING "A useable WebAssembly build needs at least CMake 3.13.0 or newer")
endif()