mirror of
https://github.com/GraphiteEditor/Graphite.git
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0HyperCubeandKeavon Chambers
9cdebfb1f0
* Add node graph frame tool * Add a brighten * Use the node graph * Fix topological_sort * Update UI * Add icons for the tool and layer type * Avoid serde & use bitmaps to improve performance * Allow serialising a node graph * Fix missing ..Default::default() * Fix incorrect comments * Cache node graph output image * Suppress no-cycle import warning Co-authored-by: Keavon Chambers <keavon@keavon.com>
65 lines
3.1 KiB
TypeScript
65 lines
3.1 KiB
TypeScript
import type WasmBindgenPackage from "@/../wasm/pkg";
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import { panicProxy } from "@/utility-functions/panic-proxy";
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import { type JsMessageType } from "@/wasm-communication/messages";
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import { createSubscriptionRouter, type SubscriptionRouter } from "@/wasm-communication/subscription-router";
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export type WasmRawInstance = typeof WasmBindgenPackage;
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export type WasmEditorInstance = InstanceType<WasmRawInstance["JsEditorHandle"]>;
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export type Editor = Readonly<ReturnType<typeof createEditor>>;
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// `wasmImport` starts uninitialized because its initialization needs to occur asynchronously, and thus needs to occur by manually calling and awaiting `initWasm()`
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let wasmImport: WasmRawInstance | undefined;
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let editorInstance: WasmEditorInstance | undefined;
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export async function updateImage(path: BigUint64Array, mime: string, imageData: Uint8Array, documentId: bigint): Promise<void> {
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const blob = new Blob([imageData], { type: mime });
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const blobURL = URL.createObjectURL(blob);
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// Pre-decode the image so it is ready to be drawn instantly once it's placed into the viewport SVG
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const image = new Image();
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image.src = blobURL;
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await image.decode();
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editorInstance?.setImageBlobURL(documentId, path, blobURL, image.naturalWidth, image.naturalHeight);
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}
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// Should be called asynchronously before `createEditor()`
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export async function initWasm(): Promise<void> {
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// Skip if the WASM module is already initialized
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if (wasmImport !== undefined) return;
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// Import the WASM module JS bindings and wrap them in the panic proxy
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// eslint-disable-next-line import/no-cycle
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wasmImport = await import("@/../wasm/pkg").then(panicProxy);
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// Provide a random starter seed which must occur after initializing the WASM module, since WASM can't generate its own random numbers
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const randomSeed = BigInt(Math.floor(Math.random() * Number.MAX_SAFE_INTEGER));
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wasmImport?.setRandomSeed(randomSeed);
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}
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// Should be called after running `initWasm()` and its promise resolving
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// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
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export function createEditor() {
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// Raw: Object containing several callable functions from `editor_api.rs` defined directly on the WASM module, not the editor instance (generated by wasm-bindgen)
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if (!wasmImport) throw new Error("Editor WASM backend was not initialized at application startup");
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const raw: WasmRawInstance = wasmImport;
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// Instance: Object containing many functions from `editor_api.rs` that are part of the editor instance (generated by wasm-bindgen)
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const instance: WasmEditorInstance = new raw.JsEditorHandle((messageType: JsMessageType, messageData: Record<string, unknown>): void => {
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// This callback is called by WASM when a FrontendMessage is received from the WASM wrapper editor instance
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// We pass along the first two arguments then add our own `raw` and `instance` context for the last two arguments
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subscriptions.handleJsMessage(messageType, messageData, raw, instance);
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});
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editorInstance = instance;
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// Subscriptions: Allows subscribing to messages in JS that are sent from the WASM backend
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const subscriptions: SubscriptionRouter = createSubscriptionRouter();
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return {
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raw,
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instance,
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subscriptions,
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};
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}
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