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generate cxdlp preview/thumb

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This commit is contained in:
Stewart Allen 2021-08-29 14:53:37 -04:00
commit 4837ac83df
3 changed files with 36 additions and 10 deletions
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2
src/kiri/main.js
View file

@ -993,7 +993,7 @@ console.log/** Copyright Stewart Allen <sa@grid.space> -- All Rights Reserved */
if (viewMode == VIEWS.ARRANGE) { if (viewMode == VIEWS.ARRANGE) {
let snap = SPACE.screenshot(); let snap = SPACE.screenshot();
API.view.snapshot = snap.substring(snap.indexOf(",") + 1); API.view.snapshot = snap.substring(snap.indexOf(",") + 1);
KIRI.work.snap(SPACE.screenshot2()); KIRI.work.snap(SPACE.screenshot2({width: 640}));
} }
if (MODE === MODES.SLA && !callback) { if (MODE === MODES.SLA && !callback) {
callback = preparePreview; callback = preparePreview;

23
src/mode/sla/export.js
View file

@ -108,19 +108,30 @@
// generate thumb, preview1, preview2 // generate thumb, preview1, preview2
let thumb = []; let thumb = [];
let tdata = SLA.previewSmall.data;
for (let x=0; x<116; x++) { for (let x=0; x<116; x++) {
for (let y=0; y<116; y++) { for (let y=0; y<116; y++) {
let val = 1 << Math.floor(x / 7.25); let p = (x * 116 + y) * 4;
thumb.push((val >> 8) & 0xff); let r = (tdata[p + 0] >> 3) << 11;
thumb.push(val & 0xff); let g = (tdata[p + 1] >> 2) << 5;
let b = (tdata[p + 2] >> 3);
let v = (r | g | b) & 0xffff;
thumb.push((v >> 8) & 0xff);
thumb.push(v & 0xff);
} }
} }
let preview1 = []; let preview1 = [];
let pdata = SLA.previewLarge.data;
console.log({pdata});
for (let x=0; x<290; x++) { for (let x=0; x<290; x++) {
for (let y=0; y<290; y++) { for (let y=0; y<290; y++) {
let val = 1 << Math.floor(x / 18.125); let p = (x * 290 + y) * 4;
preview1.push((val >> 8) & 0xff); let r = (pdata[p + 0] >> 3) << 11;
preview1.push(val & 0xff); let g = (pdata[p + 1] >> 2) << 5;
let b = (pdata[p + 2] >> 3);
let v = (r | g | b) & 0xffff;
preview1.push((v >> 8) & 0xff);
preview1.push(v & 0xff);
} }
} }
let preview2 = preview1; let preview2 = preview1;

21
src/mode/sla/slice.js
View file

@ -50,14 +50,28 @@
}); });
} }
let smallDims = { x: 200, y: 125 };
let largeDims = { x: 400, y: 300 };
switch (device.deviceName) {
case 'Anycubic.Photon':
case 'Anycubic.Photon.S':
// defaults above
break;
case 'Creality.Halot.Sky':
smallDims = { x: 116, y: 116 };
largeDims = { x: 290, y: 290 };
break;
}
let sws = self.worker.snap.url; let sws = self.worker.snap.url;
let b64 = atob(sws.substring(sws.indexOf(',') + 1)); let b64 = atob(sws.substring(sws.indexOf(',') + 1));
let bin = Uint8Array.from(b64, c => c.charCodeAt(0)); let bin = Uint8Array.from(b64, c => c.charCodeAt(0));
let img = new png.PNG(); let img = new png.PNG();
img.parse(bin, (err, data) => { img.parse(bin, (err, data) => {
SLA.preview = img; SLA.preview = img;
SLA.previewSmall = samplePNG(img, 200, 125); SLA.previewSmall = samplePNG(img, smallDims.x, smallDims.y);
SLA.previewLarge = samplePNG(img, 400, 300); SLA.previewLarge = samplePNG(img, largeDims.x, largeDims.y);
}); });
let height = process.slaSlice || 0.05; let height = process.slaSlice || 0.05;
@ -635,11 +649,12 @@
function samplePNG(png, width, height) { function samplePNG(png, width, height) {
let th = width, tw = height, let th = width, tw = height,
aspect = width / height, // was fixed at 4/3 for photon
ratio = png.width / png.height, ratio = png.width / png.height,
buf = new Uint8Array(th * tw * 4), buf = new Uint8Array(th * tw * 4),
div, xoff, yoff, dx, ex, dy, ey, bidx, pixval; div, xoff, yoff, dx, ex, dy, ey, bidx, pixval;
if (ratio > 4/3) { if (ratio >= aspect) {
div = png.height / tw; div = png.height / tw;
xoff = Math.round((png.width - (th * div)) / 2); xoff = Math.round((png.width - (th * div)) / 2);
yoff = 0; yoff = 0;