LayoutTests/fast/canvas/webgl/draw-webgl-to-canvas-2d-after-to-data-url-without-context.html - Issue 750273003: canvas: calling toDataURL without context doesn't create a buffer of canvas 2d.

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Side by Side Diff: LayoutTests/fast/canvas/webgl/draw-webgl-to-canvas-2d-after-to-data-url-without-context.html

Issue 750273003: canvas: calling toDataURL without context doesn't create a buffer of canvas 2d. (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master

Patch Set: add the description of new test Created 6 years ago

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(Empty)
	1 <!DOCTYPE html>

	2 <html>

	3 <body>

	4 <span id="description" style="color: white">

	5 Everything is same to draw-webgl-to-canvas-2d.html except for calling

	6 reduntant toDataURL().
	Justin Novosad 2014/11/24 22:27:57 "redundant" "redundant"
	7 Canvas spec allows to call toDataURL() without a context. Some bad things

	8 can happen if we call toDataURL() without a context and then create a context

	9 and then call toDataURL() again.

	10 </span>

	11 <canvas id="preserve-canvas3d" width="100" height="100"></canvas>

	12 <canvas id="preserve-canvas2d" width="100" height="100"></canvas>

	13 <canvas id="nonpreserve-canvas3d" width="100" height="100"></canvas>

	14 <canvas id="nonpreserve-canvas2d" width="100" height="100"></canvas>

	15 <script src="../../../resources/js-test.js"></script>

	16 <script src="resources/draw-webgl-to-canvas-2d.js"></script>

	17 <script>

	18 function createContexts() {

	19 var preserve_canvas2d = document.getElementById("preserve-canvas2d");

	20 preserve_canvas2d.toDataURL();

	21 preserve_ctx2D = preserve_canvas2d.getContext("2d");

	22 preserve_canvas2d.toDataURL();

	23 preserve_canvas3D = document.getElementById('preserve-canvas3d');

	24 preserve_canvas3D.toDataURL();

	25 preserve_gl = preserve_canvas3D.getContext('webgl', {'preserveDrawingBuffer' : true});

	26 preserve_canvas3D.toDataURL();

	27

	28 var nonpreserve_canvas2d = document.getElementById("nonpreserve-canvas2d");

	29 nonpreserve_canvas2d.toDataURL();

	30 nonpreserve_ctx2D = nonpreserve_canvas2d.getContext("2d");

	31 nonpreserve_canvas2d.toDataURL();

	32 nonpreserve_canvas3D = document.getElementById('nonpreserve-canvas3d');

	33 nonpreserve_canvas3D.toDataURL();

	34 nonpreserve_gl = nonpreserve_canvas3D.getContext('webgl', {'preserveDrawingB uffer': false});

	35 nonpreserve_canvas3D.toDataURL();

	36 }

	37 </script>

	38 </body>

	39 </html>

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