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Unified Diff: content/test/data/gpu/pixel_offscreenCanvas_transfer_after_style_resize.html

Issue 2495373003: Match html canvas which is transferred to OffscreenCanvas to CSS style (Closed)
Patch Set: fix compilation error Created 4 years ago
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Index: content/test/data/gpu/pixel_offscreenCanvas_transfer_after_style_resize.html
diff --git a/content/test/data/gpu/pixel_offscreenCanvas_transfer_after_style_resize.html b/content/test/data/gpu/pixel_offscreenCanvas_transfer_after_style_resize.html
new file mode 100644
index 0000000000000000000000000000000000000000..50e94d4444b396c5e54ad17c901be61ccbe04970
--- /dev/null
+++ b/content/test/data/gpu/pixel_offscreenCanvas_transfer_after_style_resize.html
@@ -0,0 +1,100 @@
+<!DOCTYPE HTML>
+
+<!-- READ BEFORE UPDATING:
+If this test is updated make sure to increment the "revision" value of the
+associated test in content/test/gpu/page_sets/pixel_tests.py. This will ensure
+that the baseline images are regenerated on the next run.
+-->
+
+<html>
+<head>
+<title>OffscreenCanvas commit with style resize: green rectangle with yellow borderon white background.</title>
+<style type="text/css">
+.nomargin {
+ margin: 0px auto;
+}
+</style>
+<script>
+var g_swapsBeforeAck = 15;
+
+function main()
+{
+ var canvas = document.getElementById("c");
+ window.requestAnimationFrame(function() {
+ canvas.style.width = '100px';
+ canvas.style.height = '200px';
+ canvas.style.border = '10px solid yellow';
+ window.requestAnimationFrame(function() {
+ var offscreenCanvas = canvas.transferControlToOffscreen();
+ drawTriangle(offscreenCanvas);
+ });
+ });
+ waitForFinish();
+}
+
+function drawTriangle(canvas)
+{
+ var gl = canvas.getContext("webgl");
+ gl.clearColor(0, 1, 0, 1);
+ gl.clear(gl.COLOR_BUFFER_BIT);
+
+ var prog = gl.createProgram();
+ var vs = gl.createShader(gl.VERTEX_SHADER);
+ gl.shaderSource(vs, ['attribute vec2 pos;',
+ 'void main() {',
+ ' gl_Position = vec4(pos, 0., 1.);',
+ '}'].join('\n'));
+ gl.compileShader(vs);
+ if (!gl.getShaderParameter(vs, gl.COMPILE_STATUS)) {
+ throw 'failed to compiled shader';
+ }
+ gl.attachShader(prog, vs);
+
+ var fs = gl.createShader(gl.FRAGMENT_SHADER);
+ gl.shaderSource(fs, ['void main() {',
+ ' gl_FragColor = vec4(1.);',
+ '}'].join('\n'));
+ gl.compileShader(fs);
+ if (!gl.getShaderParameter(fs, gl.COMPILE_STATUS)) {
+ throw 'failed to compiled shader';
+ }
+ gl.attachShader(prog, fs);
+
+ gl.linkProgram(prog);
+ if (!gl.getProgramParameter(prog, gl.LINK_STATUS)) {
+ throw "Could not link the shader program!";
+ }
+ gl.useProgram(prog);
+
+ gl.bindBuffer(gl.ARRAY_BUFFER, gl.createBuffer());
+ gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([-.5,0, 0,.5, .5,0]), gl.STATIC_DRAW);
+ var attr = gl.getAttribLocation(prog, 'pos');
+ gl.enableVertexAttribArray(attr);
+ gl.vertexAttribPointer(attr, 2, gl.FLOAT, false, 0, 0);
+
+ gl.drawArrays(gl.TRIANGLE_STRIP, 0, 3);
+
+ gl.commit();
+}
+
+function waitForFinish()
+{
+ if (g_swapsBeforeAck == 0) {
+ domAutomationController.setAutomationId(1);
+ domAutomationController.send("SUCCESS");
+ } else {
+ g_swapsBeforeAck--;
+ document.getElementById('container').style.zIndex = g_swapsBeforeAck + 1;
+ window.requestAnimationFrame(waitForFinish);
+ }
+}
+</script>
+</head>
+<body onload="main()">
+<div style="position:relative; width:300px; height:300px; background-color:white">
+</div>
+<div id="container" style="position:absolute; top:0px; left:0px">
+<canvas id="c" width="300" height="300" class="nomargin"></canvas>
+</div>
+</body>
+</html>

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