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Moved image import to worker

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jdescottes
2014-09-20 09:14:21 +02:00
parent 9afe69cb87
commit 6445b44d02
19 changed files with 486 additions and 154 deletions
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17
src/js/utils/FrameUtils.js
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@@ -106,17 +106,24 @@
* @return {pskl.model.Frame} corresponding frame
*/
createFromImage : function (image) {
var w = image.width,
h = image.height;
var imgData = pskl.utils.FrameUtils.imageToImageData(image);
var grid = pskl.utils.FrameUtils.imageDataToGrid(imgData,w, h, Constants.TRANSPARENT_COLOR);
return pskl.model.Frame.fromGrid(grid);
},
imageToImageData : function (image) {
var w = image.width,
h = image.height;
var canvas = pskl.CanvasUtils.createCanvas(w, h);
var context = canvas.getContext('2d');
context.drawImage(image, 0,0,w,h,0,0,w,h);
var imgData = context.getImageData(0,0,w,h).data;
return pskl.utils.FrameUtils.createFromImageData(imgData, w, h);
return context.getImageData(0,0,w,h).data;
},
createFromImageData : function (imageData, width, height) {
imageDataToGrid : function (imageData, width, height, transparent) {
// Draw the zoomed-up pixels to a different canvas context
var grid = [];
for (var x = 0 ; x < width ; x++){
@@ -129,13 +136,13 @@
var b = imageData[i+2];
var a = imageData[i+3];
if (a < 125) {
grid[x][y] = Constants.TRANSPARENT_COLOR;
grid[x][y] = transparent;
} else {
grid[x][y] = pskl.utils.FrameUtils.rgbToHex(r,g,b);
}
}
}
return pskl.model.Frame.fromPixelGrid(grid);
return grid;
},
/**