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fix fully negative values on cropCanvas

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Signed-off-by: Victor Seiji Hariki <victorseijih@gmail.com>
This commit is contained in:
Victor Seiji Hariki 2022-12-17 00:43:36 -03:00
parent ea68e25cf0
commit 701e1573bc
1 changed files with 3 additions and 2 deletions
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5
js/lib/util.js
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@ -306,7 +306,7 @@ function cropCanvas(sourceCanvas, options = {}) {
x: (srcCtx.origin && -srcCtx.origin.x) || 0,
y: (srcCtx.origin && -srcCtx.origin.y) || 0,
};
var imageData = srcCtx.getImageData(offset.x, offset.y, w, h);
var imageData = srcCtx.getImageDataRoot(0, 0, w, h);
/** @type {BoundingBox} */
const bb = new BoundingBox();
@ -334,7 +334,8 @@ function cropCanvas(sourceCanvas, options = {}) {
bb.w = maxx - minx + 1 + 2 * options.border;
bb.h = maxy - miny + 1 + 2 * options.border;
if (maxx < 0) throw new NoContentError("Canvas has no content to crop");
if (!Number.isFinite(maxx))
throw new NoContentError("Canvas has no content to crop");
var cutCanvas = document.createElement("canvas");
cutCanvas.width = bb.w;