tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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test_tex_large_uploads.html (2660B)

      1 <!DOCTYPE HTML>
      2 <html>
      3  <head>
      4    <meta charset='UTF-8'>
      5    <script src='/tests/SimpleTest/SimpleTest.js'></script>
      6    <link rel='stylesheet' href='/tests/SimpleTest/test.css'>
      7  </head>
      8  <body>
      9    <img id='e_blank_15000x10000' src='blank_15000x10000.png'>
     10    <script>
     11 
     12 function shouldBe(testStr, refStr) {
     13  ok(testStr == refStr, 'Expected "' + refStr + '", was "' + testStr + '".');
     14 }
     15 
     16 function getErrorStr(gl, err) {
     17  if (!err) return "NO_ERROR";
     18  for (const k in gl) {
     19    const v = gl[k];
     20    if (v == err) {
     21      return k;
     22    }
     23  }
     24  return `<${err}>`;
     25 }
     26 
     27 function glErrorShouldBe(gl, expected, opt_info) {
     28  if (opt_info) {
     29    opt_info = opt_info + ': '
     30  } else {
     31    opt_info = '';
     32  }
     33 
     34  if (!expected.length) {
     35    expected = [expected];
     36  }
     37  expected = expected.map(x => getErrorStr(gl, x));
     38  let was = gl.getError();
     39  was = getErrorStr(gl, was);
     40  ok(expected.includes(was),
     41    `${opt_info}Expected gl.getError() in [${expected}], was ${was}.`);
     42 }
     43 SimpleTest.waitForExplicitFinish();
     44 (async () => {
     45  const gl = document.createElement('canvas').getContext('webgl2');
     46  window.gl = gl;
     47  if (!gl) {
     48    todo(false, 'No webgl2, skipping...');
     49    return;
     50  }
     51  const tex = gl.createTexture();
     52  gl.bindTexture(gl.TEXTURE_2D, tex);
     53 
     54  const TESTS = [
     55    //{w: 16000, h: 8000}, // TODO: This asserts.
     56    //{w: 8000, h: 16000}, // TODO: This asserts.
     57    {w: 8000, h: 4000},
     58    {w: 4000, h: 8000},
     59    {w: 4000, h: 4000},
     60  ];
     61  const src = document.createElement('canvas').getContext('webgl',
     62    {antialias:false, depth:false});
     63  const maxTexSize = gl.getParameter(gl.MAX_TEXTURE_SIZE);
     64  for (const t of TESTS) {
     65    ok(true, 'canvas: ' + JSON.stringify(t));
     66    if (t.w > maxTexSize || t.h > maxTexSize) {
     67      ok(true, `Larger than MAX_TEXTURE_SIZE of ${maxTexSize}`);
     68      continue;
     69    }
     70    src.canvas.width = t.w;
     71    src.canvas.height = t.h;
     72    gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA8, gl.RGBA, gl.UNSIGNED_BYTE,
     73                  src.canvas);
     74 
     75    glErrorShouldBe(gl, [0, gl.OUT_OF_MEMORY], `after texImage(${JSON.stringify(t)})`);
     76 
     77    src.canvas.width = src.canvas.height = 1;
     78  }
     79 
     80  if (15000 > maxTexSize) {
     81    ok(true, `e_blank_15000x10000 larger than MAX_TEXTURE_SIZE of ${maxTexSize}, skipping.`);
     82  } else {
     83    await e_blank_15000x10000.decode(); // Otherwise it will not have loaded yet.
     84    gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA8, gl.RGBA, gl.UNSIGNED_BYTE,
     85                  e_blank_15000x10000);
     86    glErrorShouldBe(gl, [0, gl.OUT_OF_MEMORY], `after texImage(e_blank_15000x10000)`);
     87    ok(!gl.isContextLost(), '!gl.isContextLost()');
     88  }
     89 
     90  SimpleTest.finish();
     91 })();
     92    </script>
     93  </body>
     94 </html>