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

   1 <!DOCTYPE HTML>
   2 <title>WebGL test: bug 958491</title>
   3 <script src="/tests/SimpleTest/SimpleTest.js"></script>
   4 <link rel="stylesheet" href="/tests/SimpleTest/test.css">
   5 <script src="driver-info.js"></script>
   6 <body>
   7 <canvas id="c"></canvas>
   8 <script>
   9
  10 // Give ourselves a scope to return early from:
  11 (function() {
  12   var gl = c.getContext('webgl');
  13   if (!gl) {
  14     todo(false, 'WebGL is unavailable.');
  15     return;
  16   }
  17
  18   function checkGLError(func, info, reference) {
  19     var error = gl.getError();
  20     var prefix = info ? ('[' + info + '] ') : '';
  21     var text = 'gl.getError should be 0x' + reference.toString(16) +
  22                ', was 0x' + error.toString(16) + '.';
  23     func(error == reference, prefix + text);
  24   }
  25
  26   // Begin test:
  27   var rb = gl.createRenderbuffer();
  28   gl.bindRenderbuffer(gl.RENDERBUFFER, rb);
  29   gl.renderbufferStorage(gl.RENDERBUFFER, gl.RGBA4, 4, 4);
  30
  31   var fb = gl.createFramebuffer();
  32   gl.bindFramebuffer(gl.FRAMEBUFFER, fb);
  33   gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0,
  34                              gl.RENDERBUFFER, rb);
  35
  36   checkGLError(ok, 'before bad param query', 0);
  37
  38   var GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING = 0x8210;
  39   var result = gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER,
  40                                                     gl.COLOR_ATTACHMENT0,
  41                                                     GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING);
  42
  43   checkGLError(ok, 'after bad param query', gl.INVALID_ENUM);
  44 })();
  45
  46 </script>
  47