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content / test / data / gpu / webcodecs / draw-image.html [blame]
<!DOCTYPE html>
<!--
Take frames coming from various sources and render them to a canvas with
CanvasRenderingContext2D.drawImage().
-->
<html>
<head>
<title>drawImage() test</title>
<script src="webcodecs_common.js"></script>
<script type="text/javascript">
'use strict';
async function main(arg) {
const frames_to_draw = 5;
let source_type = arg.source_type;
let cnv = document.getElementById('display');
let ctx = cnv.getContext('2d');
let source = await createFrameSource(source_type, cnv.width, cnv.height);
if (!source) {
TEST.skip('Unsupported source: ' + source_type);
return;
}
for (let i = 0; i < frames_to_draw; i++) {
let frame = await source.getNextFrame();
ctx.drawImage(frame, 0, 0, cnv.width, cnv.height);
switch (source_type) {
case 'camera': {
if (arg.validate_camera_frames)
checkFourColorsFrame(ctx, cnv.width, cnv.height, 5);
else
TEST.log("Skip render result validation");
break;
}
case 'arraybuffer':
case 'offscreen':
case 'capture': {
checkFourColorsFrame(ctx, cnv.width, cnv.height, 5);
break;
}
case 'sw_decoder':
case 'hw_decoder': {
checkFourColorsFrame(ctx, cnv.width, cnv.height, 15);
break;
}
case 'hbd_arraybuffer': {
checkFourColorsFrame(ctx, cnv.width, cnv.height, 15);
break;
}
default:
TEST.reportFailure("Unexpected frame source.");
}
frame.close();
await waitForNextFrame();
}
source.close();
TEST.log('Test completed');
}
addManualTestButton([{'source_type': 'offscreen'}]);
addManualTestButton([{'source_type': 'hbd_arraybuffer'}]);
</script>
</head>
<body>
<div>
<canvas id='display' width="640" height="480"></canvas>
</div>
</body>
</html>