721 lines
25 KiB
JavaScript
721 lines
25 KiB
JavaScript
/** Copyright 2014-2019 Stewart Allen -- All Rights Reserved */
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"use strict";
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let gs_kiri_sla = exports;
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(function() {
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if (!self.kiri) self.kiri = { };
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if (!self.kiri.driver) self.kiri.driver = { };
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if (self.kiri.driver.SLA) return;
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let KIRI = self.kiri,
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BASE = self.base,
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DBUG = BASE.debug,
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UTIL = BASE.util,
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CONF = BASE.config,
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POLY = BASE.polygons,
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SLA = KIRI.driver.SLA = {
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slice,
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printSetup,
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printExport,
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printDownload,
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printRender
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},
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SLICER = KIRI.slicer,
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newPoint = BASE.newPoint,
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preview,
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previewSmall,
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previewLarge;
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/**
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* DRIVER SLICE CONTRACT - runs in worker
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*
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* @param {Object} settings
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* @param {Widget} Widget
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* @param {Function} onupdate (called with % complete and optional message)
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* @param {Function} ondone (called when complete with an array of Slice objects)
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*/
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function slice(settings, widget, onupdate, ondone) {
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let process = settings.process,
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device = settings.device;
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// calculate % complete and call onupdate()
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function doupdate(slices, index, from, to, msg) {
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onupdate(0.5 + (from + ((index / slices.length) * (to - from))) * 0.5, msg);
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}
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// for each slice, performe a function and call doupdate()
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function forSlices(slices, from, to, fn, msg) {
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slices.forEach(function(slice,index) {
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fn(slice,index);
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doupdate(slices, slice.index, from, to, msg)
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});
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}
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let b64 = atob(currentSnap);
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let bin = Uint8Array.from(b64, c => c.charCodeAt(0));
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let img = new png.PNG().parse(bin, (err, data) => {
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preview = img;
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previewSmall = samplePNG(img, 200, 125);
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previewLarge = samplePNG(img, 400, 300);
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});
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SLICER.sliceWidget(widget, {
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height: process.slaSlice || 0.05
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}, function(slices) {
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widget.slices = slices.filter(slice => slice.tops.length);
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// reset for solids and support projections
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slices.forEach(function(slice) {
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slice.invalidateFill();
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slice.invalidateSolids();
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slice.invalidateSupports();
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slice.isSolidFill = false;
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});
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let solidLayers = Math.round(process.slaShell / process.slaSlice);
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forSlices(slices, 0.1, 0.3, (slice,index) => {
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if (process.slaShell) {
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slice.doShells(2, 0, process.slaShell);
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} else {
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slice.doShells(1, 0);
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}
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}, "slice");
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forSlices(slices, 0.3, 0.6, (slice) => {
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slice.doDiff(0.00001, 0.005, true);
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}, "delta");
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if (solidLayers) {
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forSlices(slices, 0.6, 0.7, (slice) => {
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slice.projectFlats(solidLayers);
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slice.projectBridges(solidLayers);
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}, "project");
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forSlices(slices, 0.7, 0.9, (slice) => {
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slice.doSolidsFill(undefined, undefined, 0.001);
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let traces = POLY.nest(POLY.flatten(slice.gatherTraces([])));
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let trims = slice.solids.trimmed || [];
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traces.appendAll(trims);
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let union = POLY.union(traces);
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slice.solids.unioned = union;
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}, "solid");
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} else {
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forSlices(slices, 0.6, 0.9, (slice) => {
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slice.solids.unioned = slice.gatherTopPolys([]);
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})
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}
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ondone();
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}, function(update) {
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return onupdate(0.0 + update * 0.5);
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});
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};
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/**
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* DRIVER PRINT CONTRACT - runs in worker
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* @param {Object} print state object
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* @param {Function} update incremental callback
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*/
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function printSetup(print, update) {
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let widgets = print.widgets,
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settings = print.settings,
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device = settings.device,
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process = settings.process,
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output = print.images = [],
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layermax = 0,
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width = 2560,
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height = 1440,
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width2 = width/2,
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height2 = height/2,
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scaleX = width / device.bedWidth,
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scaleY = height / device.bedDepth;
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widgets.forEach(widget => {
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layermax = Math.max(widget.slices.length);
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});
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function polyout(poly, ctx) {
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poly.forEachPoint((p,i) => {
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if (i === 0) {
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ctx.moveTo(p.y * scaleY + height2, p.x * scaleX + width2);
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} else {
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ctx.lineTo(p.y * scaleY + height2, p.x * scaleX + width2);
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}
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}, true);
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ctx.closePath();
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}
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for (let index=0; index < layermax; index++) {
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let layer = new OffscreenCanvas(height,width);
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let ctx = layer.getContext('2d');
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ctx.fillStyle = 'rgb(200, 0, 0)';
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let count = 0;
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widgets.forEach(widget => {
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let slice = widget.slices[index];
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if (slice) {
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let traces = POLY.flatten(slice.gatherTraces([]));
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let polys = slice.solids.unioned;
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polys.forEach(poly => {
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ctx.beginPath();
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polyout(poly.setClockwise(), ctx);
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if (poly.inner) {
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poly.inner.forEach(inner => {
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polyout(inner.setCounterClockwise(), ctx);
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});
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}
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ctx.fill();
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count++;
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});
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}
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});
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output.push(ctx.getImageData(0,0,height,width));
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update(index / layermax);
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if (count === 0) break;
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}
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update(1);
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};
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/**
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* DRIVER PRINT CONTRACT - runs in worker
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* @param {Object} print state object
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* @param {Function} online streaming reply
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* @param {Function} ondone last reply
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*/
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function printExport(print, online, ondone) {
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let widgets = print.widgets,
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settings = print.settings,
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device = settings.device,
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process = settings.process,
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output = print.output;
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print.images.forEach(image => {
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online(image.data, [image.data.buffer]);
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});
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ondone({
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width:2560,
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height:1440,
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small:previewSmall.data,
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large:previewLarge.data
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},[
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previewSmall.data.buffer,
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previewLarge.data.buffer
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]);
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};
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// runs in browser main
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function printRender(print) {
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let widgets = print.widgets,
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settings = print.settings,
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device = settings.device,
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process = settings.process;
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for (let index=0; ; index++) {
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let layer = KIRI.newLayer(print.group);
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print.printView.push(layer);
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let count = 0;
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widgets.forEach(widget => {
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let slice = widget.slices[index];
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if (!slice) {
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return;
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}
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// let polys = slice.gatherTraces([]);
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let polys = slice.solids.unioned;
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polys.forEach(poly => {
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layer.poly(poly, 0x888888, true, false);
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count++;
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});
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});
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layer.render();
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if (count === 0) {
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// TODO fix with contract for exposing layer count
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// hack uses expected gcode output array in print object
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print.output = print.printView;
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break;
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}
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}
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}
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// runs in browser main
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function printDownload(print) {
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let { API, lines, done } = print.sla;
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let filename = `print-${new Date().getTime().toString(36)}`;
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API.ajax("/kiri/output-sla.html", html => {
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API.ui.print.innerHTML = html;
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let printset = print.settings,
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process = printset.process,
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print_sec = (process.slaBaseLayers * process.slaBaseOn) +
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(lines.length - process.slaBaseLayers) * process.slaLayerOn,
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print_min = Math.floor(print_sec/60),
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print_hrs = Math.floor(print_min/60);
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print_sec -= (print_min * 60).toString().padStart(2,0);
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print_min -= (print_hrs * 60).toString().padStart(2,0);
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print_hrs = print_hrs.toString().padStart(2,0);
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$('print-filename').value = filename;
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$('print-layers').value = lines.length;
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$('print-time').value = `${print_hrs}:${print_min}:${print_sec}`;
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$('print-close').onclick = API.modal.hide;
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$('print-photons').onclick = () => { download_photons(print) };
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$('print-photon').onclick = () => { download_photon(print) };
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// $('print-pws').onclick = () => { download_pws(print) };
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let canvas = $('print-canvas');
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let ctx = canvas.getContext('2d');
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let img = ctx.createImageData(done.height, done.width);
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let imgDV = new DataView(img.data.buffer);
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let range = $('print-range');
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range.value = 0;
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range.min = 0;
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range.max = lines.length - 1;
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range.oninput = function() {
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let lineDV = new DataView(lines[range.value].buffer);
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for (let i=0; i<lineDV.byteLength; i+=4) {
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imgDV.setUint32(i, lineDV.getUint32(i));
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}
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ctx.putImageData(img,0,0);
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$('print-layer').innerText = range.value.padStart(4,'0');
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};
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range.oninput();
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API.modal.show('print');
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});
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}
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function download_photon(print) {
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let printset = print.settings,
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process = printset.process,
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device = printset.device,
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width = print.sla.done.width,
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height = print.sla.done.height,
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layerCount = print.sla.lines.length,
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layerBytes = width * height,
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small = print.sla.done.small,
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large = print.sla.done.large;
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let converted = print.sla.lines.map((line, index) => {
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let count = line.length / 4;
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let bits = new Uint8Array(line.length / 4);
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let bitsDV = new DataView(bits.buffer);
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let lineDV = new DataView(line.buffer);
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// reduce RGB to R
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for (let i = 0; i < count; i++) {
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// defeat anti-aliasing for the moment
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bitsDV.setUint8(i, lineDV.getUint8(i * 4) > 0 ? 1 : 0);
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}
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return {
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subs: [{
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exposureTime: process.slaLayerOn,
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data: bits
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}]
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};
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});
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let coded = encodeLayers(converted, "photon");
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let buflen = 3000 + coded.length + layerCount * 28 + small.byteLength + large.byteLength;
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let filebuf = new ArrayBuffer(buflen);
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let filedat = new DataWriter(new DataView(filebuf));
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let printtime = (process.slaBaseLayers * process.slaBaseOn) +
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(coded.layers.length - process.slaBaseLayers) * process.slaLayerOn;
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// filedat.writeU32(0, true); // header
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// filedat.writeU32(0, true); // version
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filedat.writeU32(0x1900fd12); // header
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filedat.writeU32(2,true); // version
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filedat.writeF32(68.04, true); // bed x
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filedat.writeF32(120.96, true); // bed y
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filedat.writeF32(150.0, true); // bed z
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filedat.skip(12); // padding
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filedat.writeF32(process.slaSlice, true); // layer height
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filedat.writeF32(process.slaLayerOn, true); // default lamp on
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filedat.writeF32(process.slaBaseOn, true); // base lamp on
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filedat.writeF32(process.slaLayerOff, true); // lamp off
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filedat.writeU32(process.slaBaseLayers, true); // base layers
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filedat.writeU32(1440, true); // device x
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filedat.writeU32(2560, true); // device y
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let hirez = filedat.skip(4); // hirez preview address filled pater
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let layerpos = filedat.skip(4); // layer data address filled later
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filedat.writeU32(layerCount, true);
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let lorez = filedat.skip(4); // hirez preview address filled later
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filedat.writeU32(printtime, true); // print time seconds
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filedat.writeU32(1, true); // projection type (1=lcd, 0=cast)
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let proppos = filedat.skip(4); // print properties address filled later
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let proplen = filedat.skip(4); // print properties length filled later
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filedat.writeU32(1, true); // AA level (sub layers)
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filedat.writeU16(0x00ff, true); // light pwm (TODO);
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filedat.writeU16(0x00ff, true); // light pwm bottom (TODO);
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let propstart = filedat.pos;
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filedat.view.setUint32(proppos, filedat.pos, true);
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// write print properties
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filedat.writeF32(process.slaBasePeelDist, true);
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filedat.writeF32(process.slaBasePeelLiftRate * 60 , true);
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filedat.writeF32(process.slaPeelDist, true);
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filedat.writeF32(process.slaPeelLiftRate * 60 , true);
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filedat.writeF32(process.slaPeelDropRate * 60, true);
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filedat.writeF32(0, true); // volume of used
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filedat.writeF32(0, true); // weight of used
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filedat.writeF32(0, true); // cost of used
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filedat.writeF32(0, true); // bottom off delay time
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filedat.writeF32(0, true); // light off delay time
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filedat.writeU32(process.slaBaseLayers, true);
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filedat.writeF32(0, true); // p1 ?
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filedat.writeF32(0, true); // p2 ?
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filedat.writeF32(0, true); // p3 ?
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filedat.writeF32(0, true); // p4 ?
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filedat.view.setUint32(proplen, filedat.pos - propstart, true);
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filedat.view.setUint32(layerpos, filedat.pos, true);
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// write layer headers
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let layers = coded.layers;
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let layerat = [];
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for (let l=0; l<layers.length; l++) {
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filedat.writeF32(process.slaSlice * l, true); // layer height
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filedat.writeF32(l < process.slaBaseLayers ? process.slaBaseOn : process.slaLayerOn, true);
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filedat.writeF32(l < process.slaBaseLayers ? process.slaBaseOff : process.slaLayerOff, true);
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layerat.push(filedat.skip(4)); // rewrite later
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filedat.writeU32(layers[l].sublayers[0].length, true);
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filedat.skip(16); // padding
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}
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// write layer data
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for (let l=0; l<layers.length; l++) {
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filedat.view.setUint32(layerat[l], filedat.pos, true);
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let layer = layers[l].sublayers[0];
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for (let j=0; j<layer.length; j++) {
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filedat.writeU8(layer[j], false);
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}
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}
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filedat.view.setUint32(hirez, filedat.pos, true);
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writePhotonImage({
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width: 400,
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height: 300,
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data: print.sla.done.large
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}, filedat);
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filedat.view.setUint32(lorez, filedat.pos, true);
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writePhotonImage({
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width: 200,
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height: 125,
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data: print.sla.done.small
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}, filedat);
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saveAs(
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new Blob([filebuf], { type: "application/octet-stream" }),
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$('print-filename').value + ".photon");
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print.sla.API.modal.hide();
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}
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function download_photons(print) {
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let printset = print.settings,
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process = printset.process,
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device = printset.device,
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width = print.sla.done.width,
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height = print.sla.done.height,
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layerCount = print.sla.lines.length,
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layerBytes = width * height;
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let converted = print.sla.lines.map((line, index) => {
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let count = line.length / 4;
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let bits = new Uint8Array(line.length / 4);
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let bitsDV = new DataView(bits.buffer);
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let lineDV = new DataView(line.buffer);
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// reduce RGB to R = 0||1
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for (let i = 0; i < count; i++) {
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// defeat anti-aliasing for the moment
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bitsDV.setUint8(i, lineDV.getUint8(i * 4) > 0 ? 1 : 0);
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}
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return {
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subs: [{
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exposureTime: process.slaLayerOn,
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data: bits
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}]
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};
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});
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let coded = encodeLayers(converted, "photons");
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let filebuf = new ArrayBuffer(75366 + coded.length + 28 * layerCount);
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let filedat = new DataView(filebuf);
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let filePos = 0;
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filedat.setUint32 (0, 2, false);
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filedat.setUint32 (4, 3227560, false);
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filedat.setUint32 (8, 824633720, false);
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filedat.setUint16 (12, 10, false);
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filedat.setFloat64(14, process.slaSlice, false);
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filedat.setFloat64(22, process.slaLayerOn, false);
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filedat.setFloat64(30, process.slaLayerOff, false);
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filedat.setFloat64(38, process.slaBaseOn, false);
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filedat.setUint32 (46, process.slaBaseLayers, false);
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filedat.setFloat64(50, process.slaPeelDist, false);
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filedat.setFloat64(58, process.slaPeelLift, false);
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filedat.setFloat64(66, process.slaPeelDrop, false);
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filedat.setFloat64(74, 69420, false);
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filedat.setUint32 (82, 224, false);
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filedat.setUint32 (86, 42, false);
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filedat.setUint32 (90, 168, false);
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filedat.setUint32 (94, 10, false);
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filedat.setUint32 (75362, layerCount, false);
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filePos = 75366;
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for (let i = 0; i < layerCount; i++) {
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let layer = coded.layers[i],
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sublayer = layer.sublayers[0],
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numbytes = sublayer.length;
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filedat.setUint32 (filePos + 0, 69420, false);
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filedat.setFloat64(filePos + 4, 0);
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filedat.setUint32 (filePos + 12, height, false);
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filedat.setUint32 (filePos + 16, width, false);
|
|
filedat.setUint32 (filePos + 20, numbytes * 8 + 32, false);
|
|
filedat.setUint32 (filePos + 24, 2684702720, false);
|
|
filePos += 28;
|
|
for (let j = 0; j < numbytes; j++) {
|
|
filedat.setUint8(filePos + j, sublayer[j], false);
|
|
}
|
|
filePos += numbytes;
|
|
}
|
|
|
|
saveAs(
|
|
new Blob([filebuf], { type: "application/octet-stream" }),
|
|
$('print-filename').value + ".photons");
|
|
|
|
print.sla.API.modal.hide();
|
|
}
|
|
|
|
function download_pws() {
|
|
}
|
|
|
|
function encodeLayers(input, type) {
|
|
let layers = [],
|
|
length = 0;
|
|
for (let index = 0; index < input.length; index++) {
|
|
let subs = input[index].subs,
|
|
sublayers = [],
|
|
sublength = 0;
|
|
for (let subindex = 0; subindex < subs.length; subindex++) {
|
|
let data = subs[subindex].data;
|
|
let encoded = rleEncode(data, type);
|
|
sublength += encoded.length;
|
|
sublayers.push(encoded);
|
|
if (type == "photons") break;
|
|
}
|
|
length += sublength;
|
|
layers.push({
|
|
sublength,
|
|
sublayers
|
|
});
|
|
}
|
|
return {
|
|
length,
|
|
layers
|
|
};
|
|
}
|
|
|
|
function rleEncode(data, type) {
|
|
let maxlen = (type === 'photons') ? 128 : 125,
|
|
color = data[0],
|
|
runlen = 1,
|
|
output = [];
|
|
for (let index = 1; index < data.length; index++) {
|
|
let newColor = data[index];
|
|
if (newColor !== color) {
|
|
output.push(rleByte(color, runlen, type));
|
|
color = newColor;
|
|
runlen = 1;
|
|
} else {
|
|
if (runlen === maxlen) {
|
|
output.push(rleByte(color, runlen, type));
|
|
runlen = 1;
|
|
} else {
|
|
runlen++;
|
|
}
|
|
}
|
|
}
|
|
if (runlen > 0) {
|
|
output.push(rleByte(color, runlen, type));
|
|
}
|
|
return output;
|
|
}
|
|
|
|
function rleByte(color, length, type) {
|
|
switch (type) {
|
|
case 'pws':
|
|
case 'photon':
|
|
return (length & 0x7f) | ((color << 7) & 0x80);
|
|
case 'photons':
|
|
length--;
|
|
return (length & 1 ? 128 : 0) |
|
|
(length & 2 ? 64 : 0) |
|
|
(length & 4 ? 32 : 0) |
|
|
(length & 8 ? 16 : 0) |
|
|
(length & 16 ? 8 : 0) |
|
|
(length & 32 ? 4 : 0) |
|
|
(length & 64 ? 2 : 0) | color;
|
|
}
|
|
}
|
|
|
|
function rleDecode(data, type) {
|
|
let bytes = [];
|
|
if (type === 'photon') {
|
|
for (let i = 0; i < data.length; i++) {
|
|
let val = data[i],
|
|
color = val >> 7,
|
|
count = val & 0x7f;
|
|
for (let j = 0; j < count; j++) {
|
|
bytes.push(color);
|
|
}
|
|
}
|
|
} else {
|
|
for (let i = 0; i < data.length; i++) {
|
|
let val = data[i],
|
|
color = val & 1,
|
|
count =
|
|
((val & 128 ? 1 : 0) |
|
|
(val & 64 ? 2 : 0) |
|
|
(val & 32 ? 4 : 0) |
|
|
(val & 16 ? 8 : 0) |
|
|
(val & 8 ? 16 : 0) |
|
|
(val & 4 ? 32 : 0) |
|
|
(val & 2 ? 64 : 0)) + 1;
|
|
for (let j = 0; j < count; j++) {
|
|
bytes.push(color);
|
|
}
|
|
}
|
|
}
|
|
return bytes;
|
|
}
|
|
|
|
function pixAt(png,x,y) {
|
|
let idx = (x + png.width * y) * 4;
|
|
let dat = png.data;
|
|
return [
|
|
dat[idx++],
|
|
dat[idx++],
|
|
dat[idx++],
|
|
dat[idx++]
|
|
];
|
|
}
|
|
|
|
function averageBlock(png,x1,y1,x2,y2) {
|
|
let val = [0, 0, 0, 0], count = 0, x, y, z, v2;
|
|
for (x=x1; x<x2; x++) {
|
|
for (y=y1; y<y2; y++) {
|
|
v2 = pixAt(png,x,y);
|
|
for (z=0; z<4; z++) {
|
|
val[z] += v2[z];
|
|
}
|
|
count++;
|
|
}
|
|
}
|
|
for (z=0; z<4; z++) {
|
|
val[z] = Math.abs(val[z] / count);
|
|
}
|
|
return val;
|
|
};
|
|
|
|
function samplePNG(png, width, height) {
|
|
let th = width, tw = height,
|
|
ratio = png.width / png.height,
|
|
buf = new Uint8Array(th * tw * 4),
|
|
div, xoff, yoff, dx, ex, dy, ey, bidx, pixval;
|
|
|
|
if (ratio > 4/3) {
|
|
div = png.height / tw;
|
|
xoff = Math.round((png.width - (th * div)) / 2);
|
|
yoff = 0;
|
|
} else {
|
|
div = png.width / th;
|
|
xoff = 0;
|
|
yoff = Math.round((png.height - (tw * div)) / 2);
|
|
}
|
|
|
|
for (let y=0; y<tw; y++) {
|
|
dy = Math.round(y * div + yoff);
|
|
if (dy < 0 || dy > png.height) continue;
|
|
ey = Math.round((y+1) * div + yoff);
|
|
for (let x=0; x<th; x++) {
|
|
dx = Math.round(x * div + xoff);
|
|
if (dx < 0 || dx > png.width) continue;
|
|
ex = Math.round((x+1) * div + xoff);
|
|
bidx = (y * th + x) * 4;
|
|
pixval = averageBlock(png,dx,dy,ex,ey);
|
|
buf[bidx+0] = pixval[0];
|
|
buf[bidx+1] = pixval[1];
|
|
buf[bidx+2] = pixval[2];
|
|
buf[bidx+3] = pixval[3];
|
|
}
|
|
}
|
|
|
|
return {width, height, data:buf, png};
|
|
}
|
|
|
|
function writePhotonImage(preview, writer) {
|
|
let data = new Uint8Array(preview.data), len = data.byteLength;
|
|
writer.writeU32(preview.width, true);
|
|
writer.writeU32(preview.height, true);
|
|
let hpos = writer.skip(4);
|
|
writer.writeU32(len/2, true);
|
|
writer.view.setUint32(hpos, writer.pos, true);
|
|
let pos = 0;
|
|
while (pos < len) {
|
|
let r = data[pos++],
|
|
g = data[pos++],
|
|
b = data[pos++],
|
|
a = data[pos++],
|
|
v = (((r/4)&0x1f) << 11) |
|
|
(((g/4)&0x1f) << 6) |
|
|
(((b/4)&0x1f) << 0) ;
|
|
writer.writeU16(v, true);
|
|
}
|
|
}
|
|
|
|
})();
|
|
|
|
class DataWriter {
|
|
constructor(view) {
|
|
this.view = view;
|
|
this.pos = 0;
|
|
}
|
|
|
|
skip(v) {
|
|
let p = this.pos;
|
|
this.pos += v;
|
|
return p;
|
|
}
|
|
|
|
writeU8(v) {
|
|
try {
|
|
this.view.setUint8(this.pos, v);
|
|
return this.skip(1);
|
|
} catch (err) {
|
|
console.log({pos:this.pos, err})
|
|
throw err;
|
|
}
|
|
}
|
|
|
|
writeU16(v,le) {
|
|
this.view.setUint16(this.pos, v, le);
|
|
return this.skip(2);
|
|
}
|
|
|
|
writeU32(v,le) {
|
|
this.view.setUint32(this.pos, v, le);
|
|
return this.skip(4);
|
|
}
|
|
|
|
writeF32(v,le) {
|
|
this.view.setFloat32(this.pos, v, le);
|
|
return this.skip(4);
|
|
}
|
|
|
|
writeF64(v,le) {
|
|
this.view.setFloat64(this.pos, v, le);
|
|
return this.skip(8);
|
|
}
|
|
}
|