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128 lines
2.6 KiB
HTML
128 lines
2.6 KiB
HTML
<!DOCTYPE html>
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<meta charset='UTF-8'>
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<!--
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Color Test
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Clear the four quadrants of the canvas as follows:
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+------+------+
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| blue |black |
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+------+------+
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| red |green |
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+------+------+
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Clear with a given alpha value. What effect this has depends on the
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context-creation args passed to this page.
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-->
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<html class='reftest-wait'>
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<head>
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<script type='text/javascript' src='webgl-utils.js'></script>
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<script type='text/javascript'>
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'use strict';
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var COLOR_VALUE = 127.0 / 255.0;
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var ALPHA_VALUE = 127.0 / 255.0;
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function renderFrame(gl) {
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gl.enable(gl.SCISSOR_TEST);
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gl.scissor(0, 0, 100, 100);
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gl.clearColor(COLOR_VALUE, 0.0, 0.0, ALPHA_VALUE);
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gl.clear(gl.COLOR_BUFFER_BIT);
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gl.scissor(100, 0, 100, 100);
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gl.clearColor(0.0, COLOR_VALUE, 0.0, ALPHA_VALUE);
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gl.clear(gl.COLOR_BUFFER_BIT);
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gl.scissor(0, 100, 100, 100);
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gl.clearColor(0.0, 0.0, COLOR_VALUE, ALPHA_VALUE);
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gl.clear(gl.COLOR_BUFFER_BIT);
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gl.scissor(100, 100, 100, 100);
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gl.clearColor(0.0, 0.0, 0.0, ALPHA_VALUE);
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gl.clear(gl.COLOR_BUFFER_BIT);
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gl.scissor(0, 75, 50, 50);
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gl.clearColor(0.0, 0.0, 1.0, 1.0);
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gl.clear(gl.COLOR_BUFFER_BIT);
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}
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////////////////////////////////////////////////////////////////////////////////
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// Boilerplate
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var TIMEOUT_MS = 30 * 1000;
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function setStatus(text) {
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var elem = document.getElementById('status');
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elem.innerHTML = text;
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}
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var gIsComplete = false;
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function markComplete(statusText) {
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if (!statusText)
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statusText = '';
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if (gIsComplete)
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return;
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gIsComplete = true;
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setStatus(statusText);
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document.documentElement.removeAttribute('class');
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}
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function markError(text) {
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markComplete('Error: ' + text);
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}
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function markTimedOut() {
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markError('Timed out waiting on test completion.');
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}
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function runFrame(gl, frameCount, maxFrameCount) {
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renderFrame(gl);
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frameCount++;
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if (frameCount >= maxFrameCount) {
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console.log('Rendered ' + frameCount + ' frames.');
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markComplete();
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return;
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}
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requestAnimationFrame(function(){
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runFrame(gl, frameCount, maxFrameCount);
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});
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}
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function runTest() {
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var canvas = document.getElementById('canvas');
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var gl = initGL(canvas);
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if (!gl) {
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markError('WebGL context creation failed.');
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return;
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}
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var maxFrameCount = arg('frame', 1);
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if (maxFrameCount < 1) {
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markError('Invalid `frame` arg: ' + maxFrameCount);
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return;
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}
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setStatus('Waiting...');
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runFrame(gl, 0, maxFrameCount);
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setTimeout(markTimedOut, TIMEOUT_MS);
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}
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</script>
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</head>
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<body onload='runTest();'>
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<canvas style="position:fixed; left: 0px; top: 0px;" id='canvas' width='200' height='200'></canvas>
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<div id='status'></div>
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</body>
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</html>
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