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Do not shrink test canvas

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ahocevar
2014-04-06 14:29:32 +02:00
parent 95795ea301
commit 09021dffd4
1 changed files with 11 additions and 7 deletions
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18
src/ol/renderer/canvas/canvaslayerrenderer.js
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@@ -201,12 +201,16 @@ ol.renderer.canvas.Layer.testCanvasSize = (function() {
data[2] = 126;
data[3] = 255;
}
canvas.width = size[0];
canvas.height = size[1];
var x = size[0] - 1;
var y = size[1] - 1;
context.putImageData(imageData, x, y);
var result = context.getImageData(x, y, 1, 1);
return goog.array.equals(imageData.data, result.data);
var good = size[0] <= canvas.width && size[1] <= canvas.height;
if (!good) {
canvas.width = size[0];
canvas.height = size[1];
var x = size[0] - 1;
var y = size[1] - 1;
context.putImageData(imageData, x, y);
var result = context.getImageData(x, y, 1, 1);
good = goog.array.equals(imageData.data, result.data);
}
return good;
};
})();