pandemonium_engine/platform/javascript/js/libs/library_pandemonium_runtime.js

/*************************************************************************/
/*  library_pandemonium_runtime.js                                             */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                      https://godotengine.org                          */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md).   */
/*                                                                       */
/* 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.                */
/*************************************************************************/

const PandemoniumRuntime = {
    $PandemoniumRuntime: {
        /*
         * Functions
         */
        get_func: function(ptr) {
            return wasmTable.get(ptr); // eslint-disable-line no-undef
        },

        /*
         * Prints
         */
        error: function() {
            err.apply(null, Array.from(arguments)); // eslint-disable-line no-undef
        },

        print: function() {
            out.apply(null, Array.from(arguments)); // eslint-disable-line no-undef
        },

        /*
         * Memory
         */
        malloc: function(p_size) {
            return _malloc(p_size); // eslint-disable-line no-undef
        },

        free: function(p_ptr) {
            _free(p_ptr); // eslint-disable-line no-undef
        },

        getHeapValue: function(p_ptr, p_type) {
            return getValue(p_ptr, p_type); // eslint-disable-line no-undef
        },

        setHeapValue: function(p_ptr, p_value, p_type) {
            setValue(p_ptr, p_value, p_type); // eslint-disable-line no-undef
        },

        heapSub: function(p_heap, p_ptr, p_len) {
            const bytes = p_heap.BYTES_PER_ELEMENT;
            return p_heap.subarray(p_ptr / bytes, p_ptr / bytes + p_len);
        },

        heapSlice: function(p_heap, p_ptr, p_len) {
            const bytes = p_heap.BYTES_PER_ELEMENT;
            return p_heap.slice(p_ptr / bytes, p_ptr / bytes + p_len);
        },

        heapCopy: function(p_dst, p_src, p_ptr) {
            const bytes = p_src.BYTES_PER_ELEMENT;
            return p_dst.set(p_src, p_ptr / bytes);
        },

        /*
         * Strings
         */
        parseString: function(p_ptr) {
            return UTF8ToString(p_ptr); // eslint-disable-line no-undef
        },

        parseStringArray: function(p_ptr, p_size) {
            const strings = [];
            const ptrs = PandemoniumRuntime.heapSub(HEAP32, p_ptr, p_size); // TODO wasm64
            ptrs.forEach(function(ptr) {
                strings.push(PandemoniumRuntime.parseString(ptr));
            });
            return strings;
        },

        strlen: function(p_str) {
            return lengthBytesUTF8(p_str); // eslint-disable-line no-undef
        },

        allocString: function(p_str) {
            const length = PandemoniumRuntime.strlen(p_str) + 1;
            const c_str = PandemoniumRuntime.malloc(length);
            stringToUTF8(p_str, c_str, length); // eslint-disable-line no-undef
            return c_str;
        },

        allocStringArray: function(p_strings) {
            const size = p_strings.length;
            const c_ptr = PandemoniumRuntime.malloc(size * 4);
            for (let i = 0; i < size; i++) {
                HEAP32[(c_ptr >> 2) + i] = PandemoniumRuntime.allocString(p_strings[i]);
            }
            return c_ptr;
        },

        freeStringArray: function(p_ptr, p_len) {
            for (let i = 0; i < p_len; i++) {
                PandemoniumRuntime.free(HEAP32[(p_ptr >> 2) + i]);
            }
            PandemoniumRuntime.free(p_ptr);
        },

        stringToHeap: function(p_str, p_ptr, p_len) {
            return stringToUTF8Array(p_str, HEAP8, p_ptr, p_len); // eslint-disable-line no-undef
        },
    },
};
autoAddDeps(PandemoniumRuntime, '$PandemoniumRuntime');
mergeInto(LibraryManager.library, PandemoniumRuntime);