update sla device with resolution. add halot sky device

src/mode/fdm/slice.js

@@ -1034,10 +1034,10 @@
      * 'expand' is used for top offsets in SLA mode
      */
     function doDiff(slice, minArea, options = {}) {
+        const { sla, fakedown } = options;
         if (slice.index === 0 && !fakedown) {
             return;
         }
-        const { sla, fakedown } = options;
         const top = slice,
             down = slice.down || (fakedown ? newSlice(-1) : null),
             topInner = sla ? top.topPolys() : top.topInners(),

src/mode/sla/export.js

@@ -22,8 +22,8 @@
             process = settings.process,
             output = print.output,
             layermax = 0,
-            width = 2560,
-            height = 1440,
+            width = device.resolutionX,
+            height = device.resolutionY,
             width2 = width/2,
             height2 = height/2,
             scaleX = width / device.bedWidth,
@@ -75,6 +75,9 @@
             case 'Anycubic.Photon.S':
                 exp_func = generatePhotons;
                 break;
+            case 'Creality.Halot.Sky':
+                exp_func = generateCXDLP;
+                break;
         }
 
         let file = exp_func(print, {
@@ -96,6 +99,10 @@
         console.log('print.export', Date.now() - mark);
     };
 
+    function generateCXDLP(print, conf, progress) {
+        console.log({generateCXDLP: print, conf, progress});
+    }
+
     function generatePhoton(print, conf, progress) {
         let printset = print.settings,
             process = printset.process,

src/mode/sla/slice.js

@@ -50,7 +50,8 @@
             });
         }
 
-        let b64 = atob(self.worker.snap);
+        let sws = self.worker.snap.url;
+        let b64 = atob(sws.substring(sws.indexOf(',') + 1));
         let bin = Uint8Array.from(b64, c => c.charCodeAt(0));
         let img = new png.PNG();
         img.parse(bin, (err, data) => {