third_party/WebKit/LayoutTests/fast/canvas/webgl/tex-image-webgl.html

   1 <!DOCTYPE html>
   2 <html>
   3 <head>
   4 <meta charset="utf-8">
   5 <title>WebGL texImage2D from WebGL conformance test.</title>
   6 <script src="../../../resources/js-test.js"></script>
   7 <script src="resources/webgl-test.js"> </script>
   8 <script src="resources/webgl-test-utils.js"> </script>
   9 </head>
  10 <body>
  11 <canvas id="example" width="256" height="16" style="width: 256px; height: 48px;"></canvas>
  12 <canvas id="source" width="256" height="16" style="width: 256px; height: 48px;"></canvas>
  13 <div id="description"></div>
  14 <div id="console"></div>
  15 <script>
  16 description("Test texImage2D from a webgl canvas.");
  17 var wtu = WebGLTestUtils;
  18 var gl = wtu.create3DContext("example");
  19 gl.disable(gl.DITHER);
  20 var program = wtu.setupTexturedQuad(gl);
  21 var gl1 = wtu.create3DContext("source");
  22 gl1.disable(gl.DITHER);
  23
  24 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
  25 glErrorShouldBe(gl1, gl1.NO_ERROR, "Should be no errors from setup.");
  26
  27 gl.disable(gl.BLEND);
  28 gl.disable(gl.DEPTH_TEST);
  29
  30 gl1.clearColor(1.0, 0.0, 0.0, 1.0);
  31 gl1.clear(gl1.COLOR_BUFFER_BIT);
  32
  33 var tex = gl.createTexture();
  34 gl.bindTexture(gl.TEXTURE_2D, tex);
  35 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE, gl1.canvas);
  36 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
  37 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
  38 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
  39 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR);
  40 wtu.drawQuad(gl);
  41
  42 wtu.checkCanvas(gl, [255, 0, 0, 255], "Canvas should be red");
  43
  44 gl1.clearColor(0.0, 1.0, 0.0, 1.0);
  45 gl1.clear(gl1.COLOR_BUFFER_BIT);
  46
  47 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE, gl1.canvas);
  48 wtu.drawQuad(gl);
  49
  50 wtu.checkCanvas(gl, [0, 255, 0, 255], "Canvas should be green");
  51
  52 debug("");
  53 successfullyParsed = true;
  54 </script>
  55 </body>
  56 </html>
  57