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|
<!doctype html>
<html>
<head>
<title>Shader</title>
<style type="text/css">
html,body { margin: 0; padding: 0; }
#url { width: 450px; }
#width,#height,#framecount,#framedelay,#frameinterval,#background { width: 30px; }
#shader { width: 100%; height: 247px; font-family: fixed; }
#controls { width: 450px; }
#frames { width: 435px; max-height: 150px; overflow: auto; border: 1px solid #ddd; line-height: 0; }
#frames div { margin: 1px; padding: 0; position: relative; border: 1px solid #eee; cursor: -webkit-grab; }
.dragging { cursor: -webkit-grabbing !important; }
.ui-sortable-helper { cursor: -webkit-grabbing !important; }
#frames canvas { display: block }
#frames .remove { position: absolute; top: 5px; right: 5px; color: #f00; padding: 3px; border: 0;background: white; font-size: 10px; line-height: 10px; }
.paused { background: black; color: white; border-width: 1px; padding: 1px 3px 2px 4px; outline: 0 !important; }
.active { background: black; color: white; border-width: 1px; padding: 1px 4px 2px 4px; outline: 0 !important; }
div { display: inline-block; padding: 10px;}
#gallery,#controls,#workspace,#rendered{ float: left; }
#rendered img { display: block; }
#render,#save { font-weight: bold; }
#render { float: right; }
#instructions { position: absolute;top:20px;right:20px; width:190px;height:465px; box-shadow:5px 5px 10px rgba(0,0,0,0.3); background:rgba(255,255,255,0.8); display: none; cursor: -webkit-grab; }
#instructions iframe {width: 100%;height:100%;margin:0;padding:0;border:0;}
#instructions.dragging iframe { pointer-events: none; }
#instructions .close { position: absolute; top: 5px; right: 5px; color: #f00; padding: 3px; border: 0;background: white; font-size: 10px; line-height: 10px; }
.close,.remove { cursor: pointer; }
#uploaded-url { display: none; width: 300px; }
form { display: inline-block; }
#gallery { clear: right; width:100%; padding: 0; }
#gallery-images { display: block; max-height: 210px; overflow-y: auto; }
#gallery-images img, #gallery-images canvas { max-width: 200px; height: 100px; margin: 5px; cursor: pointer; }
#username { width: 40px; }
a { color: #00f; }
</style>
</head>
<body>
<div id="gallery">
<div id="gallery-form">
<form id="gallery-search">
<input type="text" id="dumpfm-search-query" value="duck bill">
<button id="gallery-search">DUMP SEARCH</button>
</form>
<button id="gallery-random">IM RANDOM</button>
<span class="status"></span>
</div>
<div id="gallery-images"></div>
</div>
<div id="controls">
<input type="text" id="url" value="img/1376516658960-dumpfm-DoritoWitch-TimeFLyTrans0001.png">
<br>
<br>
<textarea id="shader"></textarea>
<br>
<br>
frames <input type="text" id="framecount" value="1">
interval <input type="text" id="frameinterval" value="0.1s">
<button id="add-frame">+add frame</button>
<button id="remove-all-frames">clear</button>
<button id="render" disabled>render</button>
<br>
reorder:
<button id="weave-frames">weave</button>
<button id="shuffle-frames">shuffle</button>
<button id="reverse-frames">reverse</button>
<button id="sort-frames">sort</button>
<div id="frames"></div>
<br>
<br>
gif delay <input type="text" id="framedelay" value="0.06s">
background <input type="text" id="background" value="#fff">
your name here → <input type="text" id="username" value="">
<br>
<br>
<button id="help">help</button>
<button id="add-shader">+</button>
<button id="remove-shader">×</button>
<span id="shaders"></span>
<br>
<br>
<a href="http://asdf.us/im/gallery/?tag=shader" target="_blank">Photoblaster Gallery</a>
</div>
<div id="workspace"></div>
<div id="rendered">
<button id="reset">reset</button>
<button id="pause">pause</button>
<button id="step-forward">>></button>
<span class="status"></span>
<button id="save" disabled>save</button>
<button id="upload" disabled>upload</button>
<br>
<input type="text" id="uploaded-url">
</div>
<div id="instructions"><iframe src="instructions.html"></iframe><button class="close">×</button></div>
</body>
<script type="text/javascript" src="js/vendor/gif-encode/util.js"></script>
<script type="text/javascript" src="js/vendor/gif-encode/tube.js"></script>
<script type="text/javascript" src="js/vendor/gif-encode/client.js"></script>
<script type="text/javascript" src="js/vendor/gif.js"></script>
<script type="text/javascript" src="js/vendor/FileSaver/FileSaver.js"></script>
<script type="text/javascript" src="js/vendor/dataUriToBlob.js"></script>
<script type="text/javascript" src="js/vendor/jquery/jquery.min.js"></script>
<script type="text/javascript" src="js/vendor/jquery-ui-1.10.3.custom.min.js"></script>
<script type="text/javascript" src="js/vendor/canvasquery.js"></script>
<script type="text/javascript" src="js/canvasquery.dither.js"></script>
<script type="text/javascript" src="js/asdf.js"></script>
<script type="text/javascript" src="js/image.js"></script>
<script type="text/javascript" src="js/gallery.js"></script>
<script type="text/javascript" src="js/color.js"></script>
<script type="text/javascript" src="js/image.js"></script>
<script type="text/javascript" src="js/user.js"></script>
<script type="text/javascript" src="js/shader.js"></script>
<script type="text/javascript" src="js/util.js"></script>
<script type="text/javascript" src="shaders.json"></script>
<script type="text/javascript">
var cc = cq(0,0).appendTo("#workspace")
var w, h
var lastGif
$(init)
var mousex, mousey
function init(){
$("#url").change(load)
$("#reset").click(reset)
$("#pause").click(pause)
$("#step-forward").click(step_forward)
$("#add-frame").click(add_frame)
$("#frames").sortable({
start: drag_start,
stop: drag_stop
});
$(document).on("mousemove", function(e) {
mousex = e.pageX
mousey = e.pageY
})
$(document).on("click","#frames .remove",remove_frame)
$("#framecount").change(function(){
var val = $(this).int()
if (val < 1 || isNaN(val)) $(this).val(val = 1)
if (val == 1) $("#add-frame").html("+add frame")
else $("#add-frame").html("+add frames")
})
$("#background").change(function(){
document.body.style.backgroundColor = $("#background").string()
})
$("#frames").disableSelection();
$("#remove-all-frames").click(remove_all_frames)
$("#weave-frames").click(weave_frames)
$("#shuffle-frames").click(shuffle_frames)
$("#reverse-frames").click(reverse_frames)
$("#sort-frames").click(sort_frames)
$("#render").click(render)
$("#save").click(save)
$("#upload").click(upload)
$("#help,#instructions .close").click(function(){ $("#instructions").toggle() })
$("#instructions").draggable({
start: drag_start,
stop: drag_stop
})
$("#instructions").disableSelection();
load()
$(window).on("scroll DOMMouseScroll mousewheel", function(){ scrolling = true })
gallery.choose = choose
gallery.init()
user.init()
if (user.username.length) {
console.log("signed in as", user.username)
}
user.shaders.init()
user.shaders.loadLastAccessed()
$("#test-js").click(function(){
var script = $("#shader").val()
var params = {script: script, verbose: 1}
$.post("/cgi-bin/js/test_javascript.py", params, function(data){
$("pre").remove()
$("#rendered").show()
var $pre = $("<pre>")
$pre.html(data)
$("#rendered").append($pre)
console.log(data)
})
})
document.getElementById('shader').addEventListener('input', shader_build);
shader_build()
requestAnimationFrame(animate)
}
function choose (){
imageURL = this.src
loading = true
$("#url").val(imageURL)
loadImage(imageURL, ready)
}
function load(){
loading = true
var imageURL = $("#url").val()
loadImage(imageURL, ready)
}
function drag_start(){ dragging = true; $(this).addClass("dragging") }
function drag_stop(){ dragging = false; $(".dragging").removeClass("dragging") }
function reset(){
start_t = old_t
pause_t = 0
pause(false)
$("#rendered img").remove()
draw(0)
}
function pause(state){
$("#pause").toggleClass("paused", paused = typeof state == "boolean" ? state : ! paused).html(paused ? "paused" : "pause")
}
function step_forward(){
var step = $("#framedelay").float() * 1000 || 100
old_t += step
draw(old_t)
pause(true)
}
var timeout, raf_id, start_t = 0, old_t = 0, pause_t = 0
var paused = false, dragging = false, rendering = false, scrolling = false, deferring = false, scrollTimeout = null;
var fps = 30;
function animate(t){
raf_id = requestAnimationFrame(animate);
var step_t = t - old_t
old_t = t
if (paused || dragging || rendering || scrolling || deferring) {
pause_t += step_t
if (scrolling) {
scrolling = false
deferring = true
}
else {
deferring = false
}
return
}
// var timing = +(new Date())
draw(t)
// timing = +(new Date()) - timing
fps = avg(fps, 1000/step_t, 4)
status(~~(fps) + " fps")
}
function draw(t) {
t -= start_t
t -= pause_t
frame = giveFrame(t)
shade(frame, t)
}
var frame, img_frame;
function giveFrame(t){
if (window.gif) {
if (gif.currentFrame) {
return gif.frames[gif.currentFrame(t)]
}
else {
return gif.frames[0]
}
}
else if (window.img) {
return img_frame
}
else {
return cq(w, h)
}
}
function ready(){
loading = false
if (window.gif) {
frame = gif.frames[0]
w = cc.canvas.width = frame.ctx.canvas.width
h = cc.canvas.height = frame.ctx.canvas.height
for (var i=0, f; f=gif.frames[i]; i++){
f.cloneData = f.ctx.getImageData(0,0,w,h)
}
}
else {
fc = cq(img.width, img.height)
fc.drawImage(img, 0, 0)
frame = img_frame = { ctx: fc.context }
w = cc.canvas.width = frame.ctx.canvas.width
h = cc.canvas.height = frame.ctx.canvas.height
frame.cloneData = frame.ctx.getImageData(0,0,w,h)
}
}
function add_frame(){
var frame_count = $("#framecount").int()
if (frame_count < 2) {
add_single_frame()
}
else {
add_frames(frame_count)
}
}
function add_single_frame(){
var $el = $("<div>")
$el.html( $("#frame-template").html() )
$el.attr('index', $("#frames div").length)
var frame = cc.clone().appendTo($el.find(".frame")[0])
frame.canvas.className = "fullsize"
frame.canvas.style.display = "none"
var thumb = cc.clone().resize(100,100).appendTo($el.find(".frame")[0])
$("#frames").append($el)
$("#render").enable()
}
function add_frames(frame_count){
rendering = true
var t = old_t - start_t - pause_t
var frame_delay = $("#frameinterval").float() * 1000
var frame
for (var i = 0; i < frame_count; i++) {
frame = giveFrame(t)
t += frame_delay
shade(frame, t)
add_single_frame()
}
rendering = false
}
function remove_frame(){
$(this).closest("div").remove()
if ($("#frames div").length == 0) {
$("#render").disable()
}
}
function remove_all_frames(){
$("#frames").empty()
}
function shuffle_frames(){
var shuffled = []
var $frames = $("#frames div")
$("#frames").empty().append(shuffle($frames))
}
function reverse_frames(){
var $frames = $("#frames div")
$("#frames").empty().append(reverse($frames))
}
function weave_frames(){
var $frames = $("#frames div")
$("#frames").empty().append(weave($frames))
}
function sort_frames(){
var $frames = $("#frames div")
var sorted = $frames.map(function(i,el){ console.log(i,el); return [[ el.getAttribute('index'), el ]] })
.sort(function(a,b){ return a[0]-b[0] })
.map(function(i,e){ console.log( e ); return e[1] })
$("#frames").empty().append(sorted)
}
function render (){
if (rendering) return
rendering = true
encoder.reset()
var delay = $("#framedelay").float() * 1000 || 100
$("#frames canvas.fullsize").each(function(){
var frame = cq(this.width, this.height).fillStyle($("#background").string()).fillRect(0,0,this.width, this.height).drawImage(this,0,0)
encoder.addFrame(frame.canvas, delay)
})
$("#pause,#render,#add-frame").disable()
$("#rendered").find("img").remove()
$("#rendered").show()
// really bad results with neuquant?
// status("quantizing")
// encoder.quantize()
status("encoding")
try {
encoder.encode()
} catch (e) {
$("#pause,#render,#add-frame").enable()
rendering = false
status(e)
throw e
}
$("#render").html("rendering")
}
function status(s){ $(".status").html(s) }
var encoder = new GifEncoder()
encoder.on("quantized", function(url){
status("encoding")
encoder.encode()
})
encoder.on("encoded-frame", function(done,count){
status("encoded " + done + " / " + count)
})
encoder.on("rendered", function(bytes){
status(filesize(bytes.length))
})
encoder.on("rendered-url", function(url){
var image = new Image ()
lastGif = image.src = url
$("#rendered").append(image)
$("#uploaded-url").hide().val("")
$("#save,#upload,#rendered").show()
$("#pause,#render,#add-frame,#save,#upload").enable()
$("#render").html("render")
rendering = false
pause(true)
})
function get_filename(){
var basename = $("#url").val().replace(/^.*\//,"").replace(/\..*$/,"").replace(/[^-_ a-zA-Z0-9]/g,"")
var username = user.username
var filename = basename + "-" + username + "-" + (+new Date()) + ".gif"
return filename.replace(/ /g,"_").replace(/-+/g,"-")
}
function save (){
if (! lastGif) return;
var filename = get_filename()
var blob = dataUriToBlob(lastGif)
saveAs(blob, filename);
}
function saveJSON (data, filename) {
var bytes = JSON.stringify(data)
var buf = new ArrayBuffer(bytes.length);
var arr = new Uint8Array(buf);
for (var i = 0; i < bytes.length; i++) {
arr[i] = bytes.charCodeAt(i);
}
var blob = new Blob([arr], { type: "text/json" });
blob.slice = blob.slice || blob.webkitSlice;
saveAs(blob, filename);
}
function upload(){
var filename = get_filename()
var username = user.username
var blob = dataUriToBlob(lastGif)
uploadImage({
blob: blob,
filename: filename,
username: username,
success: function(data){
// data.url
// data.filesize
// data.success
console.log(data);
status("uploaded");
$("#uploaded-url").show().focus().val(data.url)
},
error: function(data){
console.log(data)
status("error uploading: " + data.error)
}
});
}
</script>
<script type="text/html" id="frame-template">
<button class="remove">x</button>
<span class="frame"></span>
</script>
<script type="text/javascript-shader" id="first">
u = x + t/10
v = y * sin(b/100)
rgbpixel(d,u,v)
</script>
<script type="text/javascript-shader" id="second">
xx = x, yy = y
var d = ((x % 2) + 2 * (y % 2)) - 2
x += w/2
y -= h/2
t/=-200
y/=96
x/=50
v = (Math.sin(t+x*y) + 1.0) / 2
v = (0.6) * v - 0.4 + Math.random()
v = clamp( v*64 + 128 , 0, 255)
v += d*32
if (a == 0) r = g = b = xx/w * 255
a = v > 128 ? v:0
</script>
</html>
|
