dom/canvas/test/webgl-mochitest/test_draw_fakevert_large_offset.html

   1 <!DOCTYPE html>
   2 <html>
   3 <head>
   4 <meta charset=utf-8>
   5 <script src='/tests/SimpleTest/SimpleTest.js'></script>
   6 </head>
   7 <body>
   8 <pre id=e_out></pre>
   9 <script>
  10 ok = window.ok || function(e, s) {
  11   e_out.textContent += `\n${!e ? 'FAIL' : 'pass'}: ${s}`;
  12 };
  13
  14 // -
  15
  16 // Bug 1778144
  17 const canvas = document.createElement("canvas")
  18 const gl = canvas.getContext("webgl")
  19 program = gl.createProgram()
  20 vertex = gl.createShader(gl.VERTEX_SHADER)
  21 gl.shaderSource(vertex, `\
  22   precision highp float;
  23   attribute vec4 a_vec4;
  24   uniform bool u_bool;
  25   uniform bvec2 u_bvec2;
  26   uniform bvec3 u_bvec3;
  27   uniform bvec4 u_bvec4;
  28   varying vec2 v_vec2;
  29   void main() {
  30     gl_Position.x += float(a_vec4.x);
  31     if (u_bool || u_bvec2.x || u_bvec3.x || u_bvec4.x) {
  32     }
  33   }
  34 `)
  35 gl.compileShader(vertex)
  36 gl.attachShader(program, vertex)
  37 fragment = gl.createShader(gl.FRAGMENT_SHADER)
  38 gl.shaderSource(fragment, `\
  39   precision highp float;
  40   varying vec2 v_vec2;
  41   uniform sampler2D u_sampler2d;
  42   void main() {
  43     gl_FragColor = texture2D(u_sampler2d, v_vec2);
  44   }
  45 `)
  46 gl.compileShader(fragment)
  47 gl.attachShader(program, fragment)
  48 gl.linkProgram(program)
  49 gl.useProgram(program)
  50 const begin = performance.now();
  51 gl.drawArrays(gl.POINTS, 1659036386, 1)
  52
  53 let err = gl.getError();
  54 ok(err == gl.OUT_OF_MEMORY || !err, `err: ${err}`);
  55
  56 const elapsed_ms = performance.now() - begin;
  57 ok(elapsed_ms < 1000, `elapsed_ms:${elapsed_ms} < 1000`);
  58
  59 // -
  60
  61 // Let's be kind and kill this now-gpu-memory-heavy context.
  62 gl.getExtension('WEBGL_lose_context').loseContext();
  63 err = gl.getError();
  64 ok(err == gl.CONTEXT_LOST_WEBGL, `err:${err} == gl.CONTEXT_LOST_WEBGL`);
  65
  66 // -
  67
  68 ok(true, 'done');
  69 </script>
  70 </body>
  71 </html>