First cut at paletteknife

author: Mark Kriegsman <kriegsman@tr.org> 2015-08-17 19:28:14 +0300
committer: Mark Kriegsman <kriegsman@tr.org> 2015-08-17 19:28:14 +0300
commit: 5acbd1e9236008cd1cfb1905714ee819b487bc1d (patch)
tree: e93517daab197cd02221ca0958e16c2f5b0fd9ab
parent: d38e818a47ebbd69e20b910df2c6091c32fab612 (diff)
4 files changed, 223 insertions, 0 deletions
diff --git a/tools/index.html b/tools/index.html
new file mode 100644
index 00000000..058bfa28
--- /dev/null
+++ b/tools/index.html
@@ -0,0 +1,7 @@
+<html>
+<head>
+<meta http-equiv="refresh" content="0; url=http://fastled.io/" />
+</head>
+<body>
+</body>
+</html>
diff --git a/tools/paletteknife/index.html b/tools/paletteknife/index.html
new file mode 100644
index 00000000..058bfa28
--- /dev/null
+++ b/tools/paletteknife/index.html
@@ -0,0 +1,7 @@
+<html>
+<head>
+<meta http-equiv="refresh" content="0; url=http://fastled.io/" />
+</head>
+<body>
+</body>
+</html>
diff --git a/tools/paletteknife/pk2.html b/tools/paletteknife/pk2.html
new file mode 100644
index 00000000..14f1f7e7
--- /dev/null
+++ b/tools/paletteknife/pk2.html
@@ -0,0 +1,16 @@
+<html>
+<title>PaletteKnife for FastLED</title>
+<body>
+<h3>PaletteKnife for FastLED</h3>
+<p>Drag this to a toolbar: <a href="javascript:(function(){s=document.createElement('script');s.type='text/javascript';s.src='http://fastled.io/tools/paletteknife/pk2.js?v='+parseInt(Math.random()*99999999);document.body.appendChild(s);})();">PaletteKnife</a>
+
+<p>Then:
+<ol>
+<li>Go to CPT-CITY here, <a href="http://soliton.vm.bytemark.co.uk/pub/cpt-city/\" target=_new>http://soliton.vm.bytemark.co.uk/pub/cpt-city/</a>
+<li>Find a palette you like, e.g. <a href="http://soliton.vm.bytemark.co.uk/pub/cpt-city/rc/tn/purplefly.png.index.html" target=_new>http://soliton.vm.bytemark.co.uk/pub/cpt-city/rc/tn/purplefly.png.index.html</a>
+<li>Click PaletteKnife in your toolbar,
+<li>Copy the resulting code and paste it into your FastLED project.
+<li>Relaxen und watchen das blinkenlights.
+</ol>
+</body>
+</html>
diff --git a/tools/paletteknife/pk2.js b/tools/paletteknife/pk2.js
new file mode 100644
index 00000000..f4b9e3ea
--- /dev/null
+++ b/tools/paletteknife/pk2.js
@@ -0,0 +1,193 @@
+var stdout = "";
+
+function cursor_wait() {
+    document.body.style.cursor = 'wait';
+}
+
+function cursor_clear() {
+    document.body.style.cursor = 'default';
+}
+
+cursor_wait();
+
+function getParameterByName(name) {
+ var match = RegExp('[?&]' + name + '=([^&]*)').exec(window.location.search);
+ return match && decodeURIComponent(match[1].replace(/\+/g, ' '));
+}
+ 
+function isNumeric(o)
+{
+    return !isNaN(parseFloat(o)) && isFinite(o);
+}
+ 
+function out()
+{
+    var args = Array.prototype.slice.call(arguments, 0);
+    //    document.getElementById('output').innerHTML += args.join(" ") + "\n";
+    stdout += args.join(" ") + "\n"; 
+}
+
+
+function adjustGamma( orig, gamma)
+{
+    var o = orig / 255.0;
+    var adj = Math.pow( o, gamma);
+    var res = Math.floor( adj * 255.0);
+    if( (orig != 0) && (res == 0)) {
+	res = 1;
+    }
+    return res;
+}
+
+
+var origurl = document.location.href;
+//"http://soliton.vm.bytemark.co.uk/pub/cpt-city/dca/tn/alarm.p1.0.2.png.index.html";
+
+// origurl = //document.location.href;
+var url2 = origurl.replace( "/tn/", "/");
+var url3 = url2.replace( ".png.index.html", ".c3g");
+
+var onSite = url3.indexOf("http://soliton.vm.bytemark.co.uk/");
+if( onSite != 0) {
+    window.location.href="http://soliton.vm.bytemark.co.uk/pub/cpt-city/";
+    //return;
+}
+
+var matches = url3.match("([^/]+)\.c3g");
+var nom = matches[1];
+nom = nom.replace(/[^A-Za-z0-9]/g,"_");
+nom = nom + "_gp";
+
+
+var src = "/*\n\
+   CSS3 gradient\n\
+   cptutils 1.55\n\
+   Mon Sep  1 00:02:16 2014\n\
+*/\n\
+\n\
+linear-gradient(\n\
+  0deg,\n\
+  rgb(186,218,139)   0.000%,\n\
+  rgb(186,218,139)   3.330%,\n\
+  rgb(231,234,155)   3.330%,\n\
+  rgb(231,234,155)   8.330%,\n\
+  rgb(254,243,181)   8.330%,\n\
+  rgb(254,243,181)  16.670%,\n\
+  rgb(246,215,150)  16.670%,\n\
+  rgb(246,215,150)  25.000%,\n\
+  rgb(205,164,119)  25.000%,\n\
+  rgb(205,164,119)  33.330%,\n\
+  rgb(187,144,105)  33.330%,\n\
+  rgb(187,144,105)  50.000%,\n\
+  rgb(225,225,225)  50.000%,\n\
+  rgb(225,225,225) 100.000%\n\
+  );";
+
+
+var rgamma = 2.6;
+var ggamma = 2.2;
+var bgamma = 2.5;
+
+var garg = getParameterByName("gamma");
+if( isNumeric( garg)) { rgamma=garg; ggamma=garg; bgamma=garg; }
+var rgarg = getParameterByName("rgamma");
+if( isNumeric( rgarg)) { rgamma = rgarg; }
+var ggarg = getParameterByName("ggamma");
+if( isNumeric( ggarg)) { ggamma = ggarg; }
+var bgarg = getParameterByName("bgamma");
+if( isNumeric( bgarg)) { bgamma = bgarg; }
+
+function CreateConversion( src)
+{
+    stdout="";
+
+    if( src.indexOf("rgba(") > -1 ) {
+	alert("WARNING: TRANSPARENCY not supported.");
+    }
+
+    var segs = 0;
+    var lines = src.split('\n');
+
+    out("DEFINE_GRADIENT_PALETTE( " + nom + " ) {");
+    
+    for(var i = 0;i < lines.length;i++){
+	var line = lines[i]
+	    
+	//out(line);
+	var nums = line.match("([0-9]+), *([0-9]+), *([0-9]+)\\) *([0-9.]+)");
+	if( nums ) {
+	    //out( nums);
+	    var r = nums[1];
+	    var g = nums[2];
+	    var b = nums[3];
+	    var pct = nums[4];
+	    var ndx = Math.floor( (pct * 255.0) / 100.0 );
+	    
+	    r = adjustGamma( r, rgamma);
+	    g = adjustGamma( g, ggamma);
+	    b = adjustGamma( b, bgamma);
+	    
+	    var rstr = ("  " + r).slice(-3);
+	    var gstr = ("  " + g).slice(-3);
+	    var bstr = ("  " + b).slice(-3);
+	    var ndxstr = ("  " + ndx).slice(-3);
+	    
+	    var outstr = "  ";
+	    outstr += ndxstr + ", ";
+	    outstr += rstr + ",";
+	    outstr += gstr + ",";
+	    outstr += bstr;
+	    
+	    if( ndx == 255 ) {
+		outstr += "};";
+	    } else {
+		outstr += ",";
+	    }
+	    out( outstr);
+	    segs++;
+	}
+    }
+
+    var prologue = "";
+    prologue += ("// Gradient palette \"" + nom + "\", originally from\n");
+    prologue += ("// " + origurl + "\n");
+    prologue += ("// converted for FastLED with gammas (" + rgamma + ", " + ggamma + ", " + bgamma + ")\n");
+    prologue += ("// Size: " + ((segs)* 4) + " bytes of program space.\n");
+
+    if( segs > 50) {
+	alert("NOTE: this is a BIG one (" + (segs) + " control points, " +((segs) * 4) + " bytes), and some colors may not show.");
+    } else if( segs > 16) {
+	alert("NOTE: >16 control points (" + (segs) + "), some colors may not show.");
+    }
+
+
+    return prologue + "\n" + stdout;
+}
+
+function DoConvert( content)
+{
+    var res = CreateConversion( content);
+    window.prompt("COPY this code, paste into your FastLED sketch:",res);
+    
+}
+
+
+
+if( onSite == 0) {
+    var i = document.createElement('iframe');
+    i.id = 'srcframe';
+    i.style.display = 'none';
+    i.onload = function() { 
+	var fr = document.getElementById("srcframe");
+	var iframeDocument = fr.contentDocument || fr.contentWindow.document;
+	var content = iframeDocument.body.innerHTML;
+	DoConvert( content); 
+	i.parentNode.removeChild(i); };
+
+    i.src = url3;
+    document.body.appendChild(i);
+} else {
+    window.location.href="http://soliton.vm.bytemark.co.uk/pub/cpt-city/";
+}
+cursor_clear();
+//alert(stdout);
author	Mark Kriegsman <kriegsman@tr.org>	2015-08-17 19:28:14 +0300
committer	Mark Kriegsman <kriegsman@tr.org>	2015-08-17 19:28:14 +0300
commit	5acbd1e9236008cd1cfb1905714ee819b487bc1d (patch)
tree	e93517daab197cd02221ca0958e16c2f5b0fd9ab
parent	d38e818a47ebbd69e20b910df2c6091c32fab612 (diff)