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Fixes optional backdrop regression

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Yury Delendik 2014-06-10 15:47:25 -05:00
parent d487d4298c
commit 1ac8ca66f7
1 changed files with 1 additions and 1 deletions
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2
src/display/canvas.js
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@ -639,7 +639,7 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
function genericComposeSMask(maskCtx, layerCtx, width, height,
subtype, backdrop) {
var hasBackdrop = backdrop !== undefined;
var hasBackdrop = !!backdrop;
var r0 = hasBackdrop ? backdrop[0] : 0;
var g0 = hasBackdrop ? backdrop[1] : 0;
var b0 = hasBackdrop ? backdrop[2] : 0;