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Avoid rendering errors by passing in the webGLContext when creating a new CanvasGraphics in getColorN_Pattern (PR 9095 follow-up)

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This was an oversight in PR 9095, which unfortunately breaks rendering in some PDF files (e.g. the one from issue 6737).

It thus appears that we don't have any test-coverage for this code-path, and given the relative complexity of the PDF files affected by this bug I wasn't able to easily create a reduced test-case.
*Please note:* The linked test-case included in this patch is currently *not* rendered correctly (that'd be the PR 6606), but it at least gives us some test-coverage here.
This commit is contained in:
Jonas Jenwald 2017-12-27 13:35:18 +01:00
parent fe30d4d468
commit 06605abbc2
3 changed files with 10 additions and 1 deletions
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src/display/canvas.js
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@ -1665,7 +1665,7 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
var canvasGraphicsFactory = {
createCanvasGraphics: (ctx) => {
return new CanvasGraphics(ctx, this.commonObjs, this.objs,
this.canvasFactory);
this.canvasFactory, this.webGLContext);
},
};
pattern = new TilingPattern(IR, color, this.ctx, canvasGraphicsFactory,