package re-organization

src/kiri-mode/sla/driver.js

@@ -0,0 +1,49 @@
+/** Copyright Stewart Allen <sa@grid.space> -- All Rights Reserved */
+
+"use strict";
+
+(function() {
+
+    if (!self.kiri.driver) self.kiri.driver = { };
+    if (self.kiri.driver.SLA) return;
+
+    const KIRI = self.kiri,
+        SLA = KIRI.driver.SLA = {
+            // init,           // src/mode/sla/client.js
+            // slice,          // src/mode/sla/slice.js
+            prepare,
+            // export,         // src/mode/sla/export.js
+            // printDownload,  // src/mode/sla/client.js
+            legacy: false
+        };
+
+    if (SLA.legacy) console.log("SLA Driver in Legacy Mode");
+
+    // runs in worker. would usually be in src/mode/sla/prepare.js
+    function prepare(widgets, settings, update) {
+        self.worker.print = KIRI.newPrint(settings, widgets);
+        if (!SLA.wasm) {
+            fetch('/wasm/kiri-sla.wasm')
+                .then(response => response.arrayBuffer())
+                .then(bytes => WebAssembly.instantiate(bytes, {
+                    env: {
+                        reportf: (a,b) => { console.log('[f]',a,b) },
+                        reporti: (a,b) => { console.log('[i]',a,b) }
+                    }
+                }))
+                .then(results => {
+                    let {module, instance} = results;
+                    let {exports} = instance;
+                    let heap = new Uint8Array(exports.memory.buffer);
+                    SLA.wasm = {
+                        heap,
+                        memory: exports.memory,
+                        render: exports.render,
+                        rle_encode: exports.rle_encode
+                    };
+                });
+        }
+        update(1);
+    }
+
+})();