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<meta charset="UTF-8">
<link rel="stylesheet" href="css/sally.css" type="text/css" charset="utf-8" />
<style>
#controls { width: 220px; float: left; padding: 10px; }
label { min-width: 70px; display: inline-block; }
#text_style { width: 100px; }
label.cbox { min-width: 50px; }
</style>
<body class="transparent">
<div id="controls">
<label></label> <span id="width_span"></span>x<span id="height_span"></span>
<br>
<label for="width_el">width</label><input type="range" min="1" max="120" value="40" id="width_el">
<br>
<label for="ratio_el">ratio</label><input type="range" min="0.0" max="8" value="2" step="0.005" id="ratio_el"><br>
<label for="hue_el">hue</label><input type="range" min="-1" max="1" value="0" step="0.005" id="hue_el"><br>
<label for="sat_el">sat</label><input type="range" min="-1" max="1" value="0" step="0.005" id="sat_el"><br>
<label for="lum_el">lum</label><input type="range" min="-1" max="1" value="0" step="0.005" id="lum_el"><br>
<label for="quant_el">quantize</label><input type="range" min="1" max="255" value="1" step="1" id="quant_el"><br>
<label for="palette_el" style="padding-top: 5px;">palette</label>
<select id="palette_el">
<option default value="colors">all colors</label>
<option value="hues">hues only</label>
<option value="grays">grayscale</label>
<option value="reds">reds</label>
<option value="yellows">yellows</label>
<option value="blues">blues</label>
</select>
<br>
<label class="cbox"></label><input type="checkbox" id="invert_el"> <label for="invert_el" style="padding-top: 7px;">invert</label>
<br>
<label class="cbox"></label><input type="checkbox" checked id="nn_el"> <label for="nn_el" style="padding-top: 7px;">nearest neighbor</label>
<br>
<br>
<input type="text" id="text_style">
<button id="save_el">SAVE</button>
<button id="timer_el">TIMER</button>
</div>
<div id="image_style"></div>
</body>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="http://asdf.us/dither/js/color.js"></script>
<script src="http://asdf.us/dither/js/util.js"></script>
<script src="js/photo.js"></script>
<script>
var width = parseInt( width_span.innerHTML = width_el.value )
var ratio = parseFloat( ratio_el.value )
var nn = $(nn_el).prop('checked')
var invert = $(invert_el).prop('checked')
var width_timeout
navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia;
function getStream(cb){
var constraints = {
video: true,
audio: false
}
navigator.getUserMedia(constraints, success, error);
function success (stream) {
var video = document.createElement("video")
video.src = window.URL.createObjectURL(stream)
video.play()
cb(video)
}
function error(error){
console.log('navigator.getUserMedia error: ', error);
}
}
var camera
getStream(function(video){
camera = video
animate()
})
function animate () {
requestAnimationFrame(animate)
if (! camera.videoWidth) return
Photo.fromCanvas(camera, toCanvas, { width: width, ratio: ratio, neighbor: nn })
}
Photo.set_recolor_fn(function(rgb){
var hsl = rgb2hsl(rgb)
hsl[0] = mod(hsl[0] + hue, 1.0)
hsl[1] = clamp(hsl[1] + sat, 0.0, 1.0)
hsl[2] = clamp(hsl[2] + lum, 0.0, 1.0)
rgb = hsl2rgb.apply(this, hsl)
if (quant > 1) {
rgb[0] = quantize(rgb[0], quant)
rgb[1] = quantize(rgb[1], quant)
rgb[2] = quantize(rgb[2], quant)
}
if (invert) {
rgb[0] = 255 - rgb[0]
rgb[1] = 255 - rgb[1]
rgb[2] = 255 - rgb[2]
}
return rgb
})
// Photo.denoise = 2
var hue = 0, sat = 0, lum = 0, quant = 1
listen(hue_el, window, "hue")
listen(sat_el, window, "sat")
listen(lum_el, window, "lum")
listen(quant_el, window, "quant")
save_el.addEventListener('click', save)
function save (){
Photo.fromCanvas(camera, saveText, { width: width, ratio: ratio, neighbor: nn })
function saveText(rows) {
text_style.value = Photo.ascii(rows)
if (window.self !== window.top) {
window.parent.postMessage(text_style.value, "*");
}
}
}
nn_el.addEventListener('change', function(){
nn = $(nn_el).prop('checked')
})
invert_el.addEventListener('change', function(){
invert = $(invert_el).prop('checked')
})
palette_el.addEventListener('change', function(){
var palette = $(palette_el).val()
Photo.set_colors( Photo[palette] )
})
ratio_el.addEventListener("input", function(){
ratio = parseFloat( ratio_el.value )
if (ratio < 0.03) ratio = 0
width_span.innerHTML = width
height_span.innerHTML = "..."
})
width_el.addEventListener("input", function(){
width = parseInt( width_el.value )
width_span.innerHTML = width
height_span.innerHTML = "..."
})
function listen (el, obj, val) {
el.addEventListener("input", function(){
obj[val] = parseFloat( el.value )
})
}
var canvas = document.createElement("canvas"), ctx = canvas.getContext('2d')
function toCanvas(rows){
var wpx = 6, hpx = 12
var rgb_colors = Photo.colors.map(function(c){ return "rgb(" + c + ")" })
canvas.width = rows[0].length * wpx
canvas.height = rows.length * hpx
rows.forEach(function(row, j){
row.forEach(function(lex, i){
ctx.fillStyle = rgb_colors[lex]
ctx.fillRect(i*wpx,j*hpx,wpx,hpx)
})
})
height_span.innerHTML = rows.length
image_style.innerHTML = ""
image_style.appendChild(canvas)
}
timer_el.addEventListener("click", function(){
var secs = 5;
(function step (){
if (secs > 0) {
timer_el.innerHTML = secs--
setTimeout(step, 1000)
}
else {
timer_el.innerHTML = "TIMER"
save()
}
})()
})
</script>
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