changes for TIFF files (synced to rocko)

src/jp4-canvas/jquery-jp4.js

@@ -227,27 +227,20 @@
     this.getFormat = () => this.format;
     this.getSrc = () => settings.src;
 
-    function process_image_tiff(blob){
+    function process_image_tiff(imagedata){
 
         IMAGE_FORMAT = "TIFF";
         obj.format = IMAGE_FORMAT;
 
-        var arrayBuffer;
-        var fileReader = new FileReader();
-        fileReader.onload = function(event){
-
-            arrayBuffer = event.target.result;
-
         // tiff.js which is limited in capabilities
         //var tiff = new Tiff({buffer: arrayBuffer});
         //var canvas = tiff.toCanvas();
 
         // UTIF.js
-            var ifds = UTIF.decode(arrayBuffer);
-            UTIF.decodeImage(arrayBuffer, ifds[0]);
+        var ifds = UTIF.decode(imagedata);
+        UTIF.decodeImage(imagedata, ifds[0]);
 
         if (ifds[0].t258==16){
-
             rgba_16bit = new Float32Array(ifds[0].data.filter((x,i) => i%2==0));
             rgba_16bit = rgba_16bit.map((x,i) => x + (ifds[0].data[2*i+1]<<8));
 
@@ -354,15 +347,9 @@
         var ctx = canvas.getContext('2d');
         ctx.putImageData(rgba_idata, 0, 0);
 
-            cnv_working.trigger("canvas_ready");
-            obj.busy = false;
-
-            //Elphel.Canvas.drawScaled($(canvas),cnv_display,settings.width);
         Elphel.Canvas.drawScaled(cnv_working,cnv_display,settings.width);
 
-        }
-        fileReader.readAsArrayBuffer(blob);
-
+        conclude_processing();
     }
 
     function process_image(imagedata){