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 <script src="webgl-util.js"></script>
   7 <body>
   8 <canvas id="c"></canvas>
   9 <script>
  10
  11 // Give ourselves a scope to return early from:
  12 (function() {
  13   var gl = WebGLUtil.getWebGL('c');
  14   if (!gl) {
  15     todo(false, 'WebGL is unavailable.');
  16     return;
  17   }
  18
  19   // Catch actual WebGLUtil errors, not GL errors.
  20   function errorFunc(str) {
  21     ok(false, 'Error: ' + str);
  22   }
  23   WebGLUtil.setErrorFunc(errorFunc);
  24
  25   function checkGLError(func, info, reference) {
  26     var error = gl.getError();
  27     var prefix = info ? ('[' + info + '] ') : '';
  28     var text = 'gl.getError should be 0x' + reference.toString(16) +
  29                ', was 0x' + error.toString(16) + '.';
  30     func(error == reference, prefix + text);
  31   }
  32
  33   // Begin test:
  34   var rb = gl.createRenderbuffer();
  35   gl.bindRenderbuffer(gl.RENDERBUFFER, rb);
  36   gl.renderbufferStorage(gl.RENDERBUFFER, gl.RGBA4, 4, 4);
  37
  38   var fb = gl.createFramebuffer();
  39   gl.bindFramebuffer(gl.FRAMEBUFFER, fb);
  40   gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0,
  41                              gl.RENDERBUFFER, rb);
  42
  43   checkGLError(ok, 'before bad param query', 0);
  44
  45   var GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING = 0x8210;
  46   var result = gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER,
  47                                                     gl.COLOR_ATTACHMENT0,
  48                                                     GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING);
  49
  50   checkGLError(ok, 'after bad param query', gl.INVALID_ENUM);
  51 })();
  52
  53 </script>
  54