load image/texture from arraybuffer

scripts/modules/graphics.js

@@ -127,6 +127,19 @@ graphics.is_image[prosperon.DOC] = `
 :return: True if 'obj' has a .texture and a .rect property, indicating it's an image object.
 `
 
+graphics.texture_from_data = function(data)
+{
+  if (!(data instanceof ArrayBuffer)) return undefined
+  
+  var img = {
+    surface:  graphics.make_texture(data)
+  }
+  render.load_texture(img)
+  decorate_rect_px(img)
+  
+  return img
+}
+
 graphics.texture = function texture(path) {
   if (typeof path !== 'string') {
     return path // fallback if already an image object

tests/qr_drag.js

@@ -77,9 +77,8 @@ function is_url(str)
 
 function parse_data(res)
 {
-  var data = res.data
-  console.log("DOWNLOAD DONE! size was " + data.byteLength)
-  console.log(res.type)
+  if (!res.type.startsWith('image')) return
+  img = graphics.texture_from_data(res.data)
 }
 
 $_.receiver(e => {