You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
254 lines
8.8 KiB
254 lines
8.8 KiB
<!doctype html> |
|
<html lang="en-us"> |
|
<head> |
|
<meta charset="utf-8"> |
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> |
|
<meta name="viewport" content="width=device-width, initial-scale=2.0, user-scalable=no"> |
|
<title>Render OpenGL Example</title> |
|
<style> |
|
body { |
|
font-family: arial; |
|
margin: 0; |
|
padding: none; |
|
background-color: black; |
|
} |
|
|
|
.emscripten { padding-right: 0; margin-left: auto; margin-right: auto; display: block; } |
|
div.emscripten { text-align: center; } |
|
div.emscripten_border { border: 1px solid black; } |
|
/* the canvas *must not* have any border or padding, or mouse coords will be wrong */ |
|
canvas.emscripten { border: 0px none; background-color: black; } |
|
|
|
#emscripten_logo { |
|
display: inline-block; |
|
margin: 0; |
|
} |
|
|
|
.spinner { |
|
height: 30px; |
|
width: 30px; |
|
margin: 0; |
|
margin-top: 20px; |
|
margin-left: 20px; |
|
display: inline-block; |
|
vertical-align: top; |
|
|
|
-webkit-animation: rotation .8s linear infinite; |
|
-moz-animation: rotation .8s linear infinite; |
|
-o-animation: rotation .8s linear infinite; |
|
animation: rotation 0.8s linear infinite; |
|
|
|
border-left: 5px solid rgb(235, 235, 235); |
|
border-right: 5px solid rgb(235, 235, 235); |
|
border-bottom: 5px solid rgb(235, 235, 235); |
|
border-top: 5px solid rgb(120, 120, 120); |
|
|
|
border-radius: 100%; |
|
background-color: rgb(189, 215, 46); |
|
} |
|
|
|
@-webkit-keyframes rotation { |
|
from {-webkit-transform: rotate(0deg);} |
|
to {-webkit-transform: rotate(360deg);} |
|
} |
|
@-moz-keyframes rotation { |
|
from {-moz-transform: rotate(0deg);} |
|
to {-moz-transform: rotate(360deg);} |
|
} |
|
@-o-keyframes rotation { |
|
from {-o-transform: rotate(0deg);} |
|
to {-o-transform: rotate(360deg);} |
|
} |
|
@keyframes rotation { |
|
from {transform: rotate(0deg);} |
|
to {transform: rotate(360deg);} |
|
} |
|
|
|
#status { |
|
display: inline-block; |
|
vertical-align: top; |
|
margin-top: 30px; |
|
margin-left: 20px; |
|
font-weight: bold; |
|
color: rgb(120, 120, 120); |
|
} |
|
|
|
#progress { |
|
height: 20px; |
|
width: 300px; |
|
} |
|
|
|
/* #controls { |
|
display: inline-block; |
|
float: right; |
|
vertical-align: top; |
|
margin-top: 30px; |
|
margin-right: 20px; |
|
}*/ |
|
|
|
#output { |
|
width: 100%; |
|
height: 200px; |
|
margin: 0 auto; |
|
margin-top: 10px; |
|
border-left: 0px; |
|
border-right: 0px; |
|
padding-left: 0px; |
|
padding-right: 0px; |
|
display: block; |
|
background-color: black; |
|
color: white; |
|
font-family: 'Lucida Console', Monaco, monospace; |
|
outline: none; |
|
} |
|
</style> |
|
</head> |
|
<body> |
|
<span id='controls'> |
|
<span><button id="captureBtn">Start Capture</button><button id="fullscreenBtn">Fullscreen</button> |
|
</span> |
|
</span> |
|
<canvas id="cameraCanvas" width="1920" height="1080" style="display: none;"></canvas> |
|
<video id="video" width="1920" height="1080" autoplay style="display: none;"></video> |
|
|
|
<div class="emscripten" id="status">Downloading...</div> |
|
|
|
<div class="emscripten"> |
|
<progress value="0" max="100" id="progress" hidden=1></progress> |
|
</div> |
|
|
|
|
|
<div class="emscripten_border"> |
|
<canvas class="emscripten" id="canvas" oncontextmenu="event.preventDefault()" tabindex=-1></canvas> |
|
</div> |
|
<script type='text/javascript'> |
|
|
|
function fixCanvasSize() { |
|
Module.canvas.style.width = (Module.canvas.width / window.devicePixelRatio)+ "px"; |
|
Module.canvas.style.height = (Module.canvas.height / window.devicePixelRatio) + "px"; |
|
} |
|
|
|
var statusElement = document.getElementById('status'); |
|
var progressElement = document.getElementById('progress'); |
|
|
|
var Module = { |
|
onRuntimeInitialized: function() { |
|
fixCanvasSize(); |
|
}, |
|
preRun: [], |
|
postRun: [], |
|
print: (function() { |
|
var element = document.getElementById('output'); |
|
if (element) element.value = ''; // clear browser cache |
|
return function(text) { |
|
if (arguments.length > 1) text = Array.prototype.slice.call(arguments).join(' '); |
|
// These replacements are necessary if you render to raw HTML |
|
//text = text.replace(/&/g, "&"); |
|
//text = text.replace(/</g, "<"); |
|
//text = text.replace(/>/g, ">"); |
|
//text = text.replace('\n', '<br>', 'g'); |
|
console.log(text); |
|
if (element) { |
|
element.value += text + "\n"; |
|
element.scrollTop = element.scrollHeight; // focus on bottom |
|
} |
|
}; |
|
})(), |
|
printErr: function(text) { |
|
if (arguments.length > 1) text = Array.prototype.slice.call(arguments).join(' '); |
|
console.error(text); |
|
}, |
|
canvas: (function() { |
|
var canvas = document.getElementById('canvas'); |
|
|
|
// As a default initial behavior, pop up an alert when webgl context is lost. To make your |
|
// application robust, you may want to override this behavior before shipping! |
|
// See http://www.khronos.org/registry/webgl/specs/latest/1.0/#5.15.2 |
|
canvas.addEventListener("webglcontextlost", function(e) { alert('WebGL context lost. You will need to reload the page.'); e.preventDefault(); }, false); |
|
|
|
return canvas; |
|
})(), |
|
setStatus: function(text) { |
|
if (!Module.setStatus.last) Module.setStatus.last = { time: Date.now(), text: '' }; |
|
if (text === Module.setStatus.last.text) return; |
|
var m = text.match(/([^(]+)\((\d+(\.\d+)?)\/(\d+)\)/); |
|
var now = Date.now(); |
|
if (m && now - Module.setStatus.last.time < 30) return; // if this is a progress update, skip it if too soon |
|
Module.setStatus.last.time = now; |
|
Module.setStatus.last.text = text; |
|
if (m) { |
|
text = m[1]; |
|
progressElement.value = parseInt(m[2])*100; |
|
progressElement.max = parseInt(m[4])*100; |
|
progressElement.hidden = false; |
|
} else { |
|
progressElement.value = null; |
|
progressElement.max = null; |
|
progressElement.hidden = true; |
|
} |
|
statusElement.innerHTML = text; |
|
}, |
|
totalDependencies: 0, |
|
monitorRunDependencies: function(left) { |
|
this.totalDependencies = Math.max(this.totalDependencies, left); |
|
Module.setStatus(left ? 'Preparing... (' + (this.totalDependencies-left) + '/' + this.totalDependencies + ')' : 'All downloads complete.'); |
|
} |
|
}; |
|
Module.setStatus('Downloading...'); |
|
|
|
window.onerror = function(event) { |
|
// TODO: do not warn on ok events like simulating an infinite loop or exitStatus |
|
Module.setStatus('Exception thrown, see JavaScript console'); |
|
//spinnerElement.style.display = 'none'; |
|
Module.setStatus = function(text) { |
|
if (text) Module.printErr('[post-exception status] ' + text); |
|
}; |
|
}; |
|
|
|
let fsButton = document.querySelector("#fullscreenBtn"); |
|
let cameraBtn = document.querySelector("#captureBtn"); |
|
let videoElement = document.querySelector("#video"); |
|
let cameraCanvas = document.querySelector("#cameraCanvas"); |
|
|
|
|
|
function capture() { |
|
let ctx = cameraCanvas.getContext('2d', { willReadFrequently: true }); |
|
ctx.drawImage(videoElement, 0, 0, cameraCanvas.width, cameraCanvas.height); |
|
var imageData = ctx.getImageData(0, 0, cameraCanvas.width, cameraCanvas.height); |
|
let filename = 'v4d_rgba_canvas.raw'; |
|
let stream = FS.open(filename, 'w+'); |
|
if(imageData) { |
|
FS.write(stream, imageData.data, 0, imageData.data.length, 0); |
|
FS.close(stream); |
|
} |
|
} |
|
|
|
function runCapture() { |
|
capture(); |
|
requestAnimationFrame(runCapture); |
|
} |
|
|
|
cameraBtn.addEventListener('click', async function() { |
|
let stream = await navigator.mediaDevices.getUserMedia({ video: true, audio: false }); |
|
videoElement.srcObject = stream; |
|
runCapture(); |
|
}); |
|
|
|
fsButton.addEventListener('click', async function () { |
|
Module.requestFullscreen(false, false) |
|
}); |
|
|
|
window.addEventListener('fullscreenchange', function (event) { |
|
if (document.fullscreenElement) { |
|
console.log(`Element: ${document.fullscreenElement.id} entered fullscreen mode.`); |
|
} else { |
|
fixCanvasSize() |
|
console.log('Leaving fullscreen mode.'); |
|
} |
|
}); |
|
</script> |
|
<script async type="text/javascript" src="example_v4d_render_opengl.js"></script> |
|
</body> |
|
</html> |
|
|
|
|
|
|