0.3.46

docs/packages.md

@@ -23,7 +23,7 @@ To remove a package, click on the garbage button in the file list next to the pa
 
 ## Publishing packages
 
-Packages can be published from the pxt command line. We are still sorting out the details.
+Packages can be published from the pxt command line. Check out [the docs](https://www.pxt.io/packages).
 
 ## Localizing packages
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "pxt-microbit",
-  "version": "0.3.43",
+  "version": "0.3.46",
   "description": "micro:bit target for PXT",
   "keywords": [
     "JavaScript",
@@ -29,6 +29,6 @@
     "typescript": "^1.8.7"
   },
   "dependencies": {
-    "pxt-core": "0.3.47"
+    "pxt-core": "0.3.51"
   }
 }

sim/state.ts

@@ -470,7 +470,7 @@ namespace pxsim {
         radio: RadioBus;
 
         // display
-        image = createImage(5);
+        image = createInternalImage(5);
         brigthness = 255;
         displayMode = DisplayMode.bw;
         font: Image = createFont();
@@ -608,14 +608,19 @@ namespace pxsim {
         }
     }
 
-    export class Image {
+    export class Image extends RefObject {
         public static height: number = 5;
         public width: number;
         public data: number[];
         constructor(width: number, data: number[]) {
+            super()
             this.width = width;
             this.data = data;
         }
+
+        public print() {
+            console.log(`Image id:${this.id} refs:${this.refcnt} size:${this.width}x${Image.height}`)
+        }
         public get(x: number, y: number): number {
             if (x < 0 || x >= this.width || y < 0 || y >= 5) return 0;
             return this.data[y * this.width + x];
@@ -650,6 +655,12 @@ namespace pxsim {
         }
     }
 
+    export function createInternalImage(width: number): Image {
+        let img = createImage(width)
+        pxsim.noLeakTracking(img)
+        return img
+    }
+
     export function createImage(width: number): Image {
         return new Image(width, new Array(width * 5));
     }
@@ -661,7 +672,7 @@ namespace pxsim {
     export function createImageFromString(text: string): Image {
         let font = board().font;
         let w = font.width;
-        let sprite = createImage(6 * text.length - 1);
+        let sprite = createInternalImage(6 * text.length - 1);
         let k = 0;
         for (let i = 0; i < text.length; i++) {
             let charCode = text.charCodeAt(i);
@@ -685,7 +696,7 @@ namespace pxsim {
 
         let nb = data.length;
         let n = nb / 5;
-        let font = createImage(nb);
+        let font = createInternalImage(nb);
         for (let c = 0; c < n; c++) {
             for (let row = 0; row < 5; row++) {
                 let char = data[c * 5 + row];