imagebitmap_structuredclone.js (1292B)
1 function ok(expect, msg) { 2 postMessage({ type: "status", status: !!expect, msg }); 3 } 4 5 onmessage = function (event) { 6 ok(!!event.data.bitmap1, "Get the 1st ImageBitmap from the main script."); 7 ok(!!event.data.bitmap2, "Get the 2nd ImageBitmap from the main script."); 8 ok(!!event.data.bitmap3, "Get the 3rd ImageBitmap from the main script."); 9 10 // send the first original ImageBitmap back to the main-thread 11 postMessage({ type: "bitmap1", bitmap: event.data.bitmap1 }); 12 13 // create a new ImageBitmap from the 2nd original ImageBitmap 14 // and then send the newly created ImageBitmap back to the main-thread 15 var promise = createImageBitmap(event.data.bitmap2); 16 promise.then( 17 function (bitmap) { 18 ok( 19 true, 20 "Successfully create a new ImageBitmap from the 2nd original bitmap in worker." 21 ); 22 23 // send the newly created ImageBitmap back to the main-thread 24 postMessage({ type: "bitmap2", bitmap }); 25 26 // finish the test 27 postMessage({ type: "finish" }); 28 }, 29 function () { 30 ok( 31 false, 32 "Cannot create a new bitmap from the original bitmap in worker." 33 ); 34 } 35 ); 36 37 // send the third original ImageBitmap back to the main-thread 38 postMessage({ type: "bitmap3", bitmap: event.data.bitmap3 }); 39 };