update .ctb options

docs/refs/MSLA_FORMAT_REFERENCE.md

@@ -210,6 +210,23 @@ Same header structure as CTB v3, with additional support for:
 - PageNumber field in layer table
 - Transition layers
 
+#### 1.4 CTB Encrypted v4-5
+
+**Extensions:** `.ctb`, `.encrypted.ctb`
+**Magic:** `0x12FD0107` (LE)
+**Versions:** 4, 5 (default: 5)
+**Settings block:** 288-byte slicer-settings table encrypted with AES-256-CBC, no padding, zero-padded to 16-byte blocks
+**Layer data:** CTB variable-length 7-bit grayscale RLE, then CTB layer XOR using `LayerXorKey` (`0xEFBEADDE` by default); some files additionally AES-encrypt layer-data subranges
+
+Encrypted CTB is a different container from plain CTB v3/v4/v5, not just a flag on the v3 layout. The fixed 48-byte header points at the encrypted settings block and a final encrypted SHA-256 signature. The AES key/IV are derived from UVtools-compatible Chitubox constants with the `UVtools` XOR mask. Kiri keeps these primitives native in JS in `x_ctb_crypto.js`; full writer support still needs the encrypted settings table, layer pointer table, resin parameters, previews, and final signature wired into `x_ctb`.
+
+Key tables:
+- File header: 48 bytes
+- Slicer settings: 288 bytes
+- Layer pointer: 16 bytes
+- Layer definition: 88 bytes
+- Per-layer settings flag: `0x40` allow, `0x00` disallow
+
 ### 2. Anycubic Family
 
 #### 2.1 Legacy Anycubic Formats (v1)
@@ -654,6 +671,46 @@ PrinterModel = SL1
 }
 ```
 
+### RSLA / VSLA (Grid.Space Generic)
+
+**Extensions:** `.rsla`, `.vsla`
+**Type:** ZIP with JSON manifest
+**Layer Format:** RSLA stores raster PNG layers; VSLA stores SVG-like vector layer geometry
+
+These formats are intended as a vendor-neutral interchange and debugging target. They carry enough process metadata to preserve behavior before conversion to a proprietary printer format.
+
+**Shared manifest process fields:**
+```json
+{
+  "process": {
+    "bottomLayers": 5,
+    "transitionLayers": 8,
+    "exposure": 2.4,
+    "bottomExposure": 28,
+    "lightOffDelay": 0,
+    "bottomLightOffDelay": 0,
+    "waitBeforeCure": 0.5,
+    "bottomWaitBeforeCure": 2,
+    "waitAfterCure": 0,
+    "waitAfterLift": 0,
+    "liftHeight": 5,
+    "bottomLiftHeight": 6,
+    "liftSpeed": 180,
+    "bottomLiftSpeed": 60,
+    "retractHeight": 5,
+    "retractSpeed": 180,
+    "lightPWM": 255,
+    "bottomLightPWM": 255,
+    "motion": "normal",
+    "antiAlias": 1
+  }
+}
+```
+
+Each layer also carries a resolved per-layer `process` object with `bottom`, `transition`, `transitionIndex`, effective exposure, waits, motion, and PWM. Proprietary writers should prefer this resolved per-layer model where their format supports it, then fall back to global process fields where it does not.
+
+VSLA layer SVG roots additionally include process data attributes such as `data-exposure`, `data-light-off-delay`, `data-light-pwm`, `data-bottom`, and `data-transition` so the per-layer intent is visible without parsing the manifest.
+
 ---
 
 ## Implementation Guidance for Sandboxed Environments
@@ -898,6 +955,7 @@ def decode_ctb_variable_rle(data: bytes, width: int, height: int) -> bytes:
 **CTB:**
 - `UVtools.Core/FileFormats/ChituboxFile.cs`: `DecodeCtbImage`, `EncodeCtbImage`, `LayerRleCryptBuffer`
 - `UVtools.Core/FileFormats/CTBEncryptedFile.cs`: encrypted CTB v4-v5 container and AES handling
+- `src/kiri/mode/sla/work/x_ctb_crypto.js`: native JS AES-256-CBC/no-padding, CTB layer XOR, encrypted CTB constants
 
 **Anycubic:**
 - `UVtools.Core/FileFormats/AnycubicFile.cs`: `FileMark`, `Header`, `LayerDef`, `GetAvailableVersionsForExtension`, `PrinterModel`

src/kiri/dev/sla/Creality.Halot.Max.json

@@ -7,6 +7,8 @@
         "bed_height": 1,
         "max_height": 300,
         "resolution_x": 3840,
-        "resolution_y": 2160
+        "resolution_y": 2160,
+        "sla_format": "cxdlp",
+        "sla_file_ext": "cxdlp"
     }
 }

src/kiri/dev/sla/Creality.Halot.One.json

@@ -7,6 +7,8 @@
         "bed_height": 1,
         "max_height": 160,
         "resolution_x": 1620,
-        "resolution_y": 2560
+        "resolution_y": 2560,
+        "sla_format": "cxdlp",
+        "sla_file_ext": "cxdlp"
     }
 }

src/kiri/dev/sla/Creality.Halot.Sky.json

@@ -7,6 +7,8 @@
         "bed_height": 1,
         "max_height": 200,
         "resolution_x": 3840,
-        "resolution_y": 2400
+        "resolution_y": 2400,
+        "sla_format": "cxdlp",
+        "sla_file_ext": "cxdlp"
     }
 }

src/kiri/mode/sla/core/formats.js

@@ -46,6 +46,14 @@ export const SLA_FORMATS = {
         priority: 1,
         family: 'chitubox'
     },
+    ctbe: {
+        id: 'ctbe',
+        ext: 'encrypted.ctb',
+        proprietary: true,
+        available: false,
+        priority: 1,
+        family: 'chitubox-encrypted'
+    },
     goo: {
         id: 'goo',
         ext: 'goo',

src/kiri/mode/sla/work/meta.js

@@ -0,0 +1,128 @@
+/** Copyright Stewart Allen <sa@grid.space> -- All Rights Reserved */
+
+const DEFAULT_PWM = 255;
+const TILT_MOTION = {
+    liftHeight: 0.05,
+    liftSpeed: 0.05,
+    retractHeight: 0,
+    retractSpeed: 0.05,
+    motorTime: 4
+};
+
+export function createProcessMetadata(device, process) {
+    let transitionLayers = intValue(process.slaTransitionLayers);
+    let lightPWM = pwmValue(process.slaLightPWM);
+    let bottomLightPWM = pwmValue(process.slaBaseLightPWM, lightPWM);
+    let normalMotion = motionFor(device, process, false);
+    let bottomMotion = motionFor(device, process, true);
+
+    return {
+        bottomLayers: intValue(process.slaBaseLayers),
+        transitionLayers,
+        exposure: number(process.slaLayerOn),
+        bottomExposure: number(process.slaBaseOn),
+        lightOffDelay: number(process.slaLayerOff),
+        bottomLightOffDelay: number(process.slaBaseOff),
+        waitBeforeCure: number(process.slaWaitBeforeCure ?? process.slaLayerOff),
+        bottomWaitBeforeCure: number(process.slaBaseWaitBeforeCure ?? process.slaBaseOff),
+        waitAfterCure: number(process.slaWaitAfterCure),
+        bottomWaitAfterCure: number(process.slaBaseWaitAfterCure),
+        waitAfterLift: number(process.slaWaitAfterLift),
+        bottomWaitAfterLift: number(process.slaBaseWaitAfterLift),
+        liftHeight: normalMotion.liftHeight,
+        bottomLiftHeight: bottomMotion.liftHeight,
+        liftSpeed: normalMotion.liftSpeed,
+        bottomLiftSpeed: bottomMotion.liftSpeed,
+        retractHeight: normalMotion.retractHeight,
+        bottomRetractHeight: bottomMotion.retractHeight,
+        retractSpeed: normalMotion.retractSpeed,
+        bottomRetractSpeed: bottomMotion.retractSpeed,
+        lightPWM,
+        bottomLightPWM,
+        motion: device.slaMotion || "normal",
+        firstLayerOffset: number(process.slaFirstOffset),
+        antiAlias: intValue(process.slaAntiAlias, 1)
+    };
+}
+
+export function createLayerMetadata(device, process, index, z, area) {
+    let meta = createProcessMetadata(device, process);
+    let bottom = index < meta.bottomLayers;
+    let transitionIndex = bottom ? -1 : index - meta.bottomLayers;
+    let transition = transitionIndex >= 0 && transitionIndex < meta.transitionLayers;
+    let motion = motionFor(device, process, bottom);
+
+    return {
+        index,
+        z: round(z),
+        area: round(area),
+        bottom,
+        transition,
+        transitionIndex: transition ? transitionIndex : -1,
+        exposure: round(layerExposure(meta, bottom, transitionIndex)),
+        lightOffDelay: bottom ? meta.bottomLightOffDelay : meta.lightOffDelay,
+        waitBeforeCure: bottom ? meta.bottomWaitBeforeCure : meta.waitBeforeCure,
+        waitAfterCure: bottom ? meta.bottomWaitAfterCure : meta.waitAfterCure,
+        waitAfterLift: bottom ? meta.bottomWaitAfterLift : meta.waitAfterLift,
+        liftHeight: motion.liftHeight,
+        liftSpeed: motion.liftSpeed,
+        retractHeight: motion.retractHeight,
+        retractSpeed: motion.retractSpeed,
+        lightPWM: bottom ? meta.bottomLightPWM : meta.lightPWM
+    };
+}
+
+export function motionFor(device, process, bottom) {
+    if (device.slaMotion === "tilt") {
+        return TILT_MOTION;
+    }
+
+    let normalDrop = process.slaPeelDropRate;
+    let bottomDrop = process.slaBasePeelDropRate ?? normalDrop;
+    return {
+        liftHeight: number(bottom ? process.slaBasePeelDist : process.slaPeelDist),
+        liftSpeed: number(bottom ? process.slaBasePeelLiftRate : process.slaPeelLiftRate) * 60,
+        retractHeight: number(bottom ? process.slaBasePeelDist : process.slaPeelDist),
+        retractSpeed: number(bottom ? bottomDrop : normalDrop) * 60,
+        motorTime: 0
+    };
+}
+
+export function estimatePrintTime(device, process, layers) {
+    let meta = createProcessMetadata(device, process);
+    let seconds = 0;
+    for (let index=0; index<layers; index++) {
+        let layer = createLayerMetadata(device, process, index, 0, 0);
+        let motor = device.slaMotion === "tilt" ? TILT_MOTION.motorTime : 0;
+        seconds += layer.exposure + layer.waitBeforeCure + layer.waitAfterCure + layer.waitAfterLift + motor;
+    }
+    return Math.ceil(seconds);
+}
+
+export function round(value) {
+    return Number.parseFloat(Number(value || 0).toFixed(5));
+}
+
+function layerExposure(meta, bottom, transitionIndex) {
+    if (bottom || meta.transitionLayers <= 0 || transitionIndex < 0 || transitionIndex >= meta.transitionLayers) {
+        return bottom ? meta.bottomExposure : meta.exposure;
+    }
+
+    let step = (transitionIndex + 1) / (meta.transitionLayers + 1);
+    return meta.bottomExposure + (meta.exposure - meta.bottomExposure) * step;
+}
+
+function pwmValue(value, fallback = DEFAULT_PWM) {
+    value = intValue(value, fallback);
+    return Math.max(0, Math.min(255, value));
+}
+
+function intValue(value, fallback = 0) {
+    value = Number.parseInt(value);
+    return Number.isFinite(value) ? value : fallback;
+}
+
+function number(value) {
+    value = Number(value);
+    return Number.isFinite(value) ? value : 0;
+}

src/kiri/mode/sla/work/x_ctb.js

@@ -3,6 +3,7 @@
 import { JSZip } from '../../../../ext/jszip-esm.js';
 import { PNG } from '../../../../ext/pngjs.esm.js';
 import { imageToRowMajor, renderRasterLayers, round } from './raster.js';
+import { ctbLayerCrypt } from './x_ctb_crypto.js';
 
 const CTB_V3_MAGIC = 0x12fd0086;
 const HEADER_SIZE = 0x70;
@@ -715,37 +716,11 @@ function requireBytes(input, offset, length) {
 }
 
 function decipher(seed, layerIndex, input) {
-    if (!seed) return input.slice();
-
-    let output = new Uint8Array(input.length);
-    let keyring = newKeyring(seed, layerIndex);
-    for (let i=0; i<input.length; i++) {
-        output[i] = input[i] ^ keyring.next();
-    }
-    return output;
+    return ctbLayerCrypt(seed, layerIndex, input);
 }
 
 function encipher(seed, layerIndex, input) {
-    return decipher(seed, layerIndex, input);
-}
-
-function newKeyring(seed, layerIndex) {
-    let init = (Math.imul(seed >>> 0, 0x2d83cdac) + 0xd8a83423) >>> 0;
-    let keySeed = (Math.imul(layerIndex >>> 0, 0x1e1530cd) + 0xec3d47cd) >>> 0;
-    let key = Math.imul(keySeed, init) >>> 0;
-    let index = 0;
-
-    return {
-        next() {
-            let byte = (key >>> (8 * index)) & 0xff;
-            index++;
-            if ((index & 3) === 0) {
-                key = (key + init) >>> 0;
-                index = 0;
-            }
-            return byte;
-        }
-    };
+    return ctbLayerCrypt(seed, layerIndex, input);
 }
 
 function imageToPNG(image, width, height) {

src/kiri/mode/sla/work/x_ctb_crypto.js

@@ -0,0 +1,321 @@
+/** Copyright Stewart Allen <sa@grid.space> -- All Rights Reserved */
+
+const UVTOOLS_KEY = "UVtools";
+const SECRET_KEY = "hQ36XB6yTk+zO02ysyiowt8yC1buK+nbLWyfY40EXoU=";
+const SECRET_IV = "Wld+ampndVJecmVjYH5cWQ==";
+const BLOCK_SIZE = 16;
+const SBOX = new Uint8Array(256);
+const INV_SBOX = new Uint8Array(256);
+const RCON = new Uint8Array(15);
+
+initTables();
+
+export const CTB_ENCRYPTED_MAGIC = 0x12fd0107;
+export const CTB_ENCRYPTED_VERSION = 5;
+export const CTB_LAYER_XOR_KEY = 0xefbeadde;
+export const CTB_ENCRYPTED_HEADER_SIZE = 48;
+export const CTB_ENCRYPTED_SETTINGS_SIZE = 288;
+export const CTB_ENCRYPTED_LAYER_POINTER_SIZE = 16;
+export const CTB_ENCRYPTED_LAYER_DEF_SIZE = 88;
+export const CTB_ENCRYPTED_MIN_RLE_AES_LENGTH = 512;
+export const CTB_PER_LAYER_SETTINGS_ALLOW = 0x40;
+export const CTB_PER_LAYER_SETTINGS_DISALLOW = 0x00;
+
+export const CTB_ENCRYPTED_KEY = xorCipher(base64Bytes(SECRET_KEY), UVTOOLS_KEY);
+export const CTB_ENCRYPTED_IV = xorCipher(base64Bytes(SECRET_IV), UVTOOLS_KEY);
+
+export function ctbLayerCrypt(seed, layerIndex, input) {
+    let output = new Uint8Array(input);
+    ctbLayerCryptInPlace(seed, layerIndex, output);
+    return output;
+}
+
+export function ctbLayerCryptInPlace(seed, layerIndex, input) {
+    if (!seed) return input;
+
+    let init = (Math.imul(seed >>> 0, 0x2d83cdac) + 0xd8a83423) >>> 0;
+    let keySeed = (Math.imul(layerIndex >>> 0, 0x1e1530cd) + 0xec3d47cd) >>> 0;
+    let key = Math.imul(keySeed, init) >>> 0;
+    let index = 0;
+
+    for (let i=0; i<input.length; i++) {
+        input[i] ^= (key >>> (8 * index)) & 0xff;
+        index++;
+        if ((index & 3) === 0) {
+            key = (key + init) >>> 0;
+            index = 0;
+        }
+    }
+
+    return input;
+}
+
+export function ctbEncrypt(data) {
+    return aesCbcCrypt(data, true, CTB_ENCRYPTED_KEY, CTB_ENCRYPTED_IV);
+}
+
+export function ctbDecrypt(data) {
+    return aesCbcCrypt(data, false, CTB_ENCRYPTED_KEY, CTB_ENCRYPTED_IV);
+}
+
+export async function ctbSignature(checksumValue = 0xcafebabe) {
+    let bytes = new Uint8Array(8);
+    let view = new DataView(bytes.buffer);
+    view.setUint32(0, checksumValue >>> 0, true);
+    view.setUint32(4, Math.floor(checksumValue / 0x100000000), true);
+    return ctbEncrypt(await sha256(bytes));
+}
+
+function aesCbcCrypt(data, encrypt, key, iv) {
+    if (key.length !== 32) {
+        throw new Error(`CTB AES key must be 32 bytes (${key.length})`);
+    }
+    if (iv.length !== BLOCK_SIZE) {
+        throw new Error(`CTB AES IV must be 16 bytes (${iv.length})`);
+    }
+
+    let keys = expandKey(key);
+    let input = encrypt ? zeroPad(data) : toBytes(data);
+    if (input.length % BLOCK_SIZE !== 0) {
+        throw new Error(`CTB AES input must align to 16 bytes (${input.length})`);
+    }
+
+    let output = new Uint8Array(input.length);
+    let previous = new Uint8Array(iv);
+
+    for (let offset=0; offset<input.length; offset += BLOCK_SIZE) {
+        let block = input.slice(offset, offset + BLOCK_SIZE);
+
+        if (encrypt) {
+            xorBlock(block, previous);
+            block = encryptBlock(block, keys);
+            previous = block;
+            output.set(block, offset);
+            continue;
+        }
+
+        let current = block;
+        block = decryptBlock(block, keys);
+        xorBlock(block, previous);
+        previous = current;
+        output.set(block, offset);
+    }
+
+    return output;
+}
+
+function encryptBlock(block, keys) {
+    let state = new Uint8Array(block);
+    let rounds = keys.rounds;
+
+    addRoundKey(state, keys.bytes, 0);
+    for (let round=1; round<rounds; round++) {
+        subBytes(state);
+        shiftRows(state);
+        mixColumns(state);
+        addRoundKey(state, keys.bytes, round);
+    }
+    subBytes(state);
+    shiftRows(state);
+    addRoundKey(state, keys.bytes, rounds);
+
+    return state;
+}
+
+function decryptBlock(block, keys) {
+    let state = new Uint8Array(block);
+    let rounds = keys.rounds;
+
+    addRoundKey(state, keys.bytes, rounds);
+    for (let round=rounds - 1; round>0; round--) {
+        invShiftRows(state);
+        invSubBytes(state);
+        addRoundKey(state, keys.bytes, round);
+        invMixColumns(state);
+    }
+    invShiftRows(state);
+    invSubBytes(state);
+    addRoundKey(state, keys.bytes, 0);
+
+    return state;
+}
+
+function expandKey(key) {
+    let nk = 8;
+    let nb = 4;
+    let rounds = 14;
+    let bytes = new Uint8Array(nb * (rounds + 1) * 4);
+    bytes.set(key);
+
+    let temp = new Uint8Array(4);
+    let words = nb * (rounds + 1);
+    for (let word=nk; word<words; word++) {
+        let prev = (word - 1) * 4;
+        temp[0] = bytes[prev];
+        temp[1] = bytes[prev + 1];
+        temp[2] = bytes[prev + 2];
+        temp[3] = bytes[prev + 3];
+
+        if (word % nk === 0) {
+            let first = temp[0];
+            temp[0] = SBOX[temp[1]] ^ RCON[word / nk];
+            temp[1] = SBOX[temp[2]];
+            temp[2] = SBOX[temp[3]];
+            temp[3] = SBOX[first];
+        } else if (word % nk === 4) {
+            temp[0] = SBOX[temp[0]];
+            temp[1] = SBOX[temp[1]];
+            temp[2] = SBOX[temp[2]];
+            temp[3] = SBOX[temp[3]];
+        }
+
+        let prior = (word - nk) * 4;
+        let out = word * 4;
+        bytes[out] = bytes[prior] ^ temp[0];
+        bytes[out + 1] = bytes[prior + 1] ^ temp[1];
+        bytes[out + 2] = bytes[prior + 2] ^ temp[2];
+        bytes[out + 3] = bytes[prior + 3] ^ temp[3];
+    }
+
+    return { bytes, rounds };
+}
+
+function addRoundKey(state, keys, round) {
+    let offset = round * BLOCK_SIZE;
+    for (let i=0; i<BLOCK_SIZE; i++) {
+        state[i] ^= keys[offset + i];
+    }
+}
+
+function subBytes(state) {
+    for (let i=0; i<BLOCK_SIZE; i++) state[i] = SBOX[state[i]];
+}
+
+function invSubBytes(state) {
+    for (let i=0; i<BLOCK_SIZE; i++) state[i] = INV_SBOX[state[i]];
+}
+
+function shiftRows(state) {
+    let t = state.slice();
+    state[1] = t[5]; state[5] = t[9]; state[9] = t[13]; state[13] = t[1];
+    state[2] = t[10]; state[6] = t[14]; state[10] = t[2]; state[14] = t[6];
+    state[3] = t[15]; state[7] = t[3]; state[11] = t[7]; state[15] = t[11];
+}
+
+function invShiftRows(state) {
+    let t = state.slice();
+    state[1] = t[13]; state[5] = t[1]; state[9] = t[5]; state[13] = t[9];
+    state[2] = t[10]; state[6] = t[14]; state[10] = t[2]; state[14] = t[6];
+    state[3] = t[7]; state[7] = t[11]; state[11] = t[15]; state[15] = t[3];
+}
+
+function mixColumns(state) {
+    for (let c=0; c<BLOCK_SIZE; c += 4) {
+        let a0 = state[c];
+        let a1 = state[c + 1];
+        let a2 = state[c + 2];
+        let a3 = state[c + 3];
+        let t = a0 ^ a1 ^ a2 ^ a3;
+        let u = a0;
+        state[c] ^= t ^ xtime(a0 ^ a1);
+        state[c + 1] ^= t ^ xtime(a1 ^ a2);
+        state[c + 2] ^= t ^ xtime(a2 ^ a3);
+        state[c + 3] ^= t ^ xtime(a3 ^ u);
+    }
+}
+
+function invMixColumns(state) {
+    for (let c=0; c<BLOCK_SIZE; c += 4) {
+        let a0 = state[c];
+        let a1 = state[c + 1];
+        let a2 = state[c + 2];
+        let a3 = state[c + 3];
+        state[c] = mul(a0, 14) ^ mul(a1, 11) ^ mul(a2, 13) ^ mul(a3, 9);
+        state[c + 1] = mul(a0, 9) ^ mul(a1, 14) ^ mul(a2, 11) ^ mul(a3, 13);
+        state[c + 2] = mul(a0, 13) ^ mul(a1, 9) ^ mul(a2, 14) ^ mul(a3, 11);
+        state[c + 3] = mul(a0, 11) ^ mul(a1, 13) ^ mul(a2, 9) ^ mul(a3, 14);
+    }
+}
+
+function initTables() {
+    RCON[1] = 1;
+    for (let i=2; i<RCON.length; i++) RCON[i] = xtime(RCON[i - 1]);
+
+    for (let i=0; i<256; i++) {
+        let inv = i ? gfPow(i, 254) : 0;
+        let s = inv ^ rot(inv, 1) ^ rot(inv, 2) ^ rot(inv, 3) ^ rot(inv, 4) ^ 0x63;
+        SBOX[i] = s & 0xff;
+        INV_SBOX[SBOX[i]] = i;
+    }
+}
+
+function xtime(value) {
+    return ((value << 1) ^ ((value & 0x80) ? 0x1b : 0)) & 0xff;
+}
+
+function mul(a, b) {
+    let out = 0;
+    while (b) {
+        if (b & 1) out ^= a;
+        a = xtime(a);
+        b >>= 1;
+    }
+    return out;
+}
+
+function gfPow(value, power) {
+    let out = 1;
+    while (power) {
+        if (power & 1) out = mul(out, value);
+        value = mul(value, value);
+        power >>= 1;
+    }
+    return out;
+}
+
+function rot(value, shift) {
+    return ((value << shift) | (value >> (8 - shift))) & 0xff;
+}
+
+function zeroPad(data) {
+    data = toBytes(data);
+    let length = Math.ceil(data.length / BLOCK_SIZE) * BLOCK_SIZE;
+    if (length === data.length) return data;
+
+    let output = new Uint8Array(length);
+    output.set(data);
+    return output;
+}
+
+function xorBlock(block, key) {
+    for (let i=0; i<BLOCK_SIZE; i++) block[i] ^= key[i];
+}
+
+function xorCipher(bytes, key) {
+    let output = new Uint8Array(bytes.length);
+    for (let i=0; i<bytes.length; i++) {
+        output[i] = bytes[i] ^ key.charCodeAt(i % key.length);
+    }
+    return output;
+}
+
+function base64Bytes(text) {
+    let binary = atob(text);
+    let bytes = new Uint8Array(binary.length);
+    for (let i=0; i<binary.length; i++) {
+        bytes[i] = binary.charCodeAt(i);
+    }
+    return bytes;
+}
+
+function toBytes(data) {
+    return data instanceof Uint8Array ? data : new Uint8Array(data);
+}
+
+async function sha256(bytes) {
+    let subtle = globalThis.crypto && globalThis.crypto.subtle;
+    if (!subtle) {
+        throw new Error("CTB encrypted signature requires crypto.subtle SHA-256");
+    }
+    return new Uint8Array(await subtle.digest("SHA-256", bytes));
+}

src/kiri/mode/sla/work/x_goo.js

@@ -1,6 +1,7 @@
 /** Copyright Stewart Allen <sa@grid.space> -- All Rights Reserved */
 
 import { imageToRowMajor, renderRasterLayers, round } from './raster.js';
+import { createLayerMetadata, createProcessMetadata, estimatePrintTime, motionFor } from './meta.js';
 
 const FAMILY = "GOO";
 const FILE_VERSION = "V3.0";
@@ -11,13 +12,6 @@ const HEADER_SIZE = 195477;
 const LAYER_DEF_SIZE = 70;
 const FOOTER_SIZE = 11;
 const MAX_RUN = 0x0fffffff;
-const TILT_MOTION = {
-    liftHeight: 0.05,
-    liftSpeed: 0.05,
-    retractHeight: 0,
-    retractSpeed: 0.05,
-    motorTime: 4
-};
 
 const FORMAT_RECORDS = {
     goo: { ext: "goo", machine: "Elegoo GOO", notes: "Elegoo GOO" },
@@ -46,9 +40,9 @@ function encodeGOO(print, progress, photon, rec) {
     let previewLarge = createPreview(290, 290);
 
     let { ctx, volume } = renderRasterLayers(print, photon, params => {
-        let { index, rendered, bottom, z, ctx } = params;
+        let { index, rendered, z, ctx } = params;
         let { device, process, width, height } = ctx;
-        let motion = layerMotion(device, process, bottom);
+        let layerMeta = createLayerMetadata(device, process, index, z, rendered.area);
         let raster = imageToRowMajor(rendered.image, width, height, normalizePixel);
 
         accumulatePreview(previewSmall, rendered.image, width, height);
@@ -57,22 +51,22 @@ function encodeGOO(print, progress, photon, rec) {
         layers.push({
             index,
             data: encodeRLE(raster),
-            z: round(z),
+            z: layerMeta.z,
             pausePositionZ: ctx.device.maxHeight || ctx.device.bedHeight || 0,
-            exposure: bottom ? process.slaBaseOn : process.slaLayerOn,
-            lightOffDelay: 0,
-            waitTimeAfterCure: 0,
-            waitTimeAfterLift: 0,
-            waitTimeBeforeCure: bottom ? process.slaBaseOff : process.slaLayerOff,
-            liftHeight: motion.liftHeight,
-            liftSpeed: motion.liftSpeed,
+            exposure: layerMeta.exposure,
+            lightOffDelay: layerMeta.lightOffDelay,
+            waitTimeAfterCure: layerMeta.waitAfterCure,
+            waitTimeAfterLift: layerMeta.waitAfterLift,
+            waitTimeBeforeCure: layerMeta.waitBeforeCure,
+            liftHeight: layerMeta.liftHeight,
+            liftSpeed: layerMeta.liftSpeed,
             liftHeight2: 0,
             liftSpeed2: 0,
-            retractHeight: motion.retractHeight,
-            retractSpeed: motion.retractSpeed,
+            retractHeight: layerMeta.retractHeight,
+            retractSpeed: layerMeta.retractSpeed,
             retractHeight2: 0,
             retractSpeed2: 0,
-            lightPWM: 255
+            lightPWM: layerMeta.lightPWM
         });
     }, progress ? (value) => progress(value * 0.85, `${rec.ext}_encode`) : null);
 
@@ -107,10 +101,9 @@ function writeGOO(params) {
 function writeHeader(writer, params) {
     let { ctx, layers, volume, previewSmall, previewLarge, rec } = params;
     let { device, process, width, height } = ctx;
-    let bottomOff = process.slaBaseOff || 0;
-    let layerOff = process.slaLayerOff || 0;
-    let bottomMotion = layerMotion(device, process, true);
-    let layerMotionValue = layerMotion(device, process, false);
+    let meta = createProcessMetadata(device, process);
+    let bottomMotion = motionFor(device, process, true);
+    let layerMotionValue = motionFor(device, process, false);
 
     writer.writeString(FILE_VERSION, 4);
     writer.writeBytes(FILE_MAGIC);
@@ -136,17 +129,17 @@ function writeHeader(writer, params) {
     writer.writeF32(device.bedDepth);
     writer.writeF32(device.maxHeight || device.bedHeight || 0);
     writer.writeF32(process.slaSlice);
-    writer.writeF32(process.slaLayerOn);
+    writer.writeF32(meta.exposure);
     writer.writeU8(1);
     writer.writeF32(0);
     writer.writeF32(0);
     writer.writeF32(0);
-    writer.writeF32(bottomOff);
+    writer.writeF32(meta.bottomWaitBeforeCure);
     writer.writeF32(0);
     writer.writeF32(0);
-    writer.writeF32(layerOff);
-    writer.writeF32(process.slaBaseOn);
-    writer.writeU32(process.slaBaseLayers || 0);
+    writer.writeF32(meta.waitBeforeCure);
+    writer.writeF32(meta.bottomExposure);
+    writer.writeU32(meta.bottomLayers);
     writer.writeF32(bottomMotion.liftHeight);
     writer.writeF32(bottomMotion.liftSpeed);
     writer.writeF32(layerMotionValue.liftHeight);
@@ -156,8 +149,8 @@ function writeHeader(writer, params) {
     writer.writeF32(layerMotionValue.retractHeight);
     writer.writeF32(layerMotionValue.retractSpeed);
     for (let i=0; i<8; i++) writer.writeF32(0);
-    writer.writeU16(255);
-    writer.writeU16(255);
+    writer.writeU16(meta.bottomLightPWM);
+    writer.writeU16(meta.lightPWM);
     writer.writeU8(0);
     writer.writeU32(estimatePrintTime(device, process, layers.length));
     writer.writeF32(round(volume));
@@ -197,20 +190,6 @@ function writeLayer(writer, layer) {
     writer.writeBytes(DELIMITER);
 }
 
-function layerMotion(device, process, bottom) {
-    if (device.slaMotion === "tilt") {
-        return TILT_MOTION;
-    }
-
-    return {
-        liftHeight: bottom ? process.slaBasePeelDist : process.slaPeelDist,
-        liftSpeed: (bottom ? process.slaBasePeelLiftRate : process.slaPeelLiftRate) * 60,
-        retractHeight: bottom ? process.slaBasePeelDist : process.slaPeelDist,
-        retractSpeed: (bottom ? process.slaBasePeelDropRate : process.slaPeelDropRate) * 60,
-        motorTime: 0
-    };
-}
-
 function writeFooter(writer) {
     writer.writeU8(0);
     writer.writeU8(0);
@@ -506,20 +485,6 @@ function accumulatePreview(preview, image, width, height) {
     }
 }
 
-function estimatePrintTime(device, process, layers) {
-    let bottom = Math.min(process.slaBaseLayers || 0, layers);
-    let normal = Math.max(0, layers - bottom);
-    let motorTime = device.slaMotion === "tilt" ? TILT_MOTION.motorTime : 0;
-    let bottomTime = number(process.slaBaseOn) + number(process.slaBaseOff) + motorTime;
-    let normalTime = number(process.slaLayerOn) + number(process.slaLayerOff) + motorTime;
-    return Math.ceil(bottom * bottomTime + normal * normalTime);
-}
-
-function number(value) {
-    value = Number(value);
-    return Number.isFinite(value) ? value : 0;
-}
-
 function checksum(bytes) {
     let sum = 0;
     for (let i=1; i<bytes.length; i++) {

src/kiri/mode/sla/work/x_rsla.js

@@ -4,6 +4,7 @@ import { JSZip } from '../../../../ext/jszip-esm.js';
 import { PNG } from '../../../../ext/pngjs.esm.js';
 import { photon } from './x_photon.js';
 import { imageToRowMajor, renderRasterLayers, round } from './raster.js';
+import { createLayerMetadata, createProcessMetadata } from './meta.js';
 
 const FORMAT = "rsla";
 const MIME = "application/vnd.gridspace.rsla+zip";
@@ -14,14 +15,17 @@ function encode(print, progress) {
 
     let { ctx, volume } = renderRasterLayers(print, photon, params => {
         let { index, rendered, ctx } = params;
-        let { process, width, height } = ctx;
+        let { device, process, width, height } = ctx;
+        let z = process.slaFirstOffset + process.slaSlice * index;
+        let layerMeta = createLayerMetadata(device, process, index, z, rendered.area);
 
         let file = `layers/${index.toString().padStart(6, "0")}.png`;
         let layer = {
             index,
-            z: round(process.slaFirstOffset + process.slaSlice * index),
-            area: round(rendered.area),
-            file
+            z: layerMeta.z,
+            area: layerMeta.area,
+            file,
+            process: layerMeta
         };
 
         layers.push(layer);
@@ -79,18 +83,7 @@ function createManifest(params) {
             black: "off"
         },
         process: {
-            bottomLayers: process.slaBaseLayers,
-            exposure: process.slaLayerOn,
-            bottomExposure: process.slaBaseOn,
-            lightOffDelay: process.slaLayerOff,
-            bottomLightOffDelay: process.slaBaseOff,
-            liftHeight: process.slaPeelDist,
-            bottomLiftHeight: process.slaBasePeelDist,
-            liftSpeed: process.slaPeelLiftRate * 60,
-            bottomLiftSpeed: process.slaBasePeelLiftRate * 60,
-            retractSpeed: process.slaPeelDropRate * 60,
-            firstLayerOffset: process.slaFirstOffset,
-            antiAlias: process.slaAntiAlias
+            ...createProcessMetadata(device, process)
         },
         layers
     };

src/kiri/mode/sla/work/x_vsla.js

@@ -1,6 +1,7 @@
 /** Copyright Stewart Allen <sa@grid.space> -- All Rights Reserved */
 
 import { JSZip } from '../../../../ext/jszip-esm.js';
+import { createLayerMetadata, createProcessMetadata, round } from './meta.js';
 
 const FORMAT = "vsla";
 const MIME = "application/vnd.gridspace.vsla+zip";
@@ -18,7 +19,7 @@ function encode(print, progress) {
     let layers = [];
     let volume = 0;
     for (let index=0; index<layermax; index++) {
-        let layer = collectLayer({ index, widgets, process });
+        let layer = collectLayer({ index, widgets, device, process });
         volume += layer.area * process.slaSlice;
         layers.push(layer);
         if (progress) progress((index / layermax) * 0.7, "vector_gen");
@@ -49,7 +50,7 @@ function encode(print, progress) {
 }
 
 function collectLayer(params) {
-    let { index, widgets, process } = params;
+    let { index, widgets, device, process } = params;
     let polygons = [];
     let area = 0;
     let z = process.slaFirstOffset + process.slaSlice * index;
@@ -74,11 +75,14 @@ function collectLayer(params) {
         }
     });
 
+    let layerMeta = createLayerMetadata(device, process, index, z, area);
+
     return {
         index,
-        z: round(z),
-        area: round(area),
+        z: layerMeta.z,
+        area: layerMeta.area,
         file: `layers/${index.toString().padStart(6, "0")}.svg`,
+        process: layerMeta,
         polygons
     };
 }
@@ -91,7 +95,8 @@ function createManifest(params) {
             z: layer.z,
             area: layer.area,
             file: layer.file,
-            empty: layer.polygons.length === 0
+            empty: layer.polygons.length === 0,
+            process: layer.process
         };
     });
 
@@ -125,18 +130,7 @@ function createManifest(params) {
         layerCount: layers.length,
         volume: round(volume),
         process: {
-            bottomLayers: process.slaBaseLayers,
-            exposure: process.slaLayerOn,
-            bottomExposure: process.slaBaseOn,
-            lightOffDelay: process.slaLayerOff,
-            bottomLightOffDelay: process.slaBaseOff,
-            liftHeight: process.slaPeelDist,
-            bottomLiftHeight: process.slaBasePeelDist,
-            liftSpeed: process.slaPeelLiftRate * 60,
-            bottomLiftSpeed: process.slaBasePeelLiftRate * 60,
-            retractSpeed: process.slaPeelDropRate * 60,
-            firstLayerOffset: process.slaFirstOffset,
-            antiAlias: process.slaAntiAlias
+            ...createProcessMetadata(device, process)
         },
         layers: layerList
     };
@@ -150,9 +144,10 @@ function createLayerSVG(params) {
         return `  <path fill="#000" fill-rule="evenodd" d="${polyToPath(poly, device)}"/>`;
     }).join("\n");
 
+    let proc = layer.process;
     return [
         `<?xml version="1.0" encoding="UTF-8"?>`,
-        `<svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="${width}mm" height="${depth}mm" viewBox="0 0 ${width} ${depth}" data-layer="${layer.index}" data-z="${layer.z}">`,
+        `<svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="${width}mm" height="${depth}mm" viewBox="0 0 ${width} ${depth}" data-layer="${layer.index}" data-z="${layer.z}" data-exposure="${proc.exposure}" data-light-off-delay="${proc.lightOffDelay}" data-light-pwm="${proc.lightPWM}" data-bottom="${proc.bottom}" data-transition="${proc.transition}">`,
         body,
         `</svg>`,
         ``
@@ -184,10 +179,6 @@ function appendPath(parts, poly, device) {
     parts.push("Z");
 }
 
-function round(value) {
-    return Number.parseFloat(Number(value || 0).toFixed(5));
-}
-
 export const VSLA = {
     encode
 };