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RESOLVED FIXED
51982
Shadow is not drawn when filling a path with a gradient
https://bugs.webkit.org/show_bug.cgi?id=51982
Summary
Shadow is not drawn when filling a path with a gradient
Helder Correia
Reported
2011-01-05 22:14:12 PST
This happens in CG and seems to be the very same issue as in
bug 51869
, this time related to GraphicsContext::fillPath(const Path& path). I'll upload a patch soon.
Attachments
Patch
(12.60 KB, patch)
2011-01-07 16:42 PST
,
Helder Correia
no flags
Details
Formatted Diff
Diff
Seems to be working work now. Thanks, Dirk.
(12.68 KB, patch)
2011-01-14 15:05 PST
,
Helder Correia
no flags
Details
Formatted Diff
Diff
Show Obsolete
(1)
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Add attachment
proposed patch, testcase, etc.
Helder Correia
Comment 1
2011-01-07 16:42:20 PST
Created
attachment 78288
[details]
Patch
WebKit Commit Bot
Comment 2
2011-01-08 18:35:33 PST
Comment on
attachment 78288
[details]
Patch Clearing flags on attachment: 78288 Committed
r75341
: <
http://trac.webkit.org/changeset/75341
>
WebKit Commit Bot
Comment 3
2011-01-08 18:35:39 PST
All reviewed patches have been landed. Closing bug.
WebKit Commit Bot
Comment 4
2011-01-08 18:53:56 PST
The commit-queue encountered the following flaky tests while processing
attachment 78288
[details]
: fast/workers/storage/use-same-database-in-page-and-workers.html
bug 50995
(author:
dumi@chromium.org
) The commit-queue is continuing to process your patch.
Jeremy Orlow
Comment 5
2011-01-10 11:17:50 PST
This was rolled out by
https://bugs.webkit.org/show_bug.cgi?id=52157
due to this: The mac results on
http://test-results.appspot.com/dashboards/flakiness_dashboard.html#tests=fast%2Fbackgrounds%2Fsvg-as-background-2.html&showExpectations=true&master=ChromiumWebkit
seem to demonstrate a real test failure. There may have been others as well. You can see where things broke here:
http://build.chromium.org/p/chromium.webkit/waterfall?builder=Webkit%20Mac&last_time=1294549999
Jeremy Orlow
Comment 6
2011-01-10 12:10:25 PST
Looks like the revert did indeed fix the problem. Sorry to be the bearer of bad news!
Helder Correia
Comment 7
2011-01-14 12:48:08 PST
(In reply to
comment #6
)
> Looks like the revert did indeed fix the problem.
Is any of the SVG folks able to help me figure out how this patch may have broken some (gradient?) functionality? Thanks
Dirk Schulze
Comment 8
2011-01-14 13:07:33 PST
(In reply to
comment #7
)
> (In reply to
comment #6
) > > Looks like the revert did indeed fix the problem. > > Is any of the SVG folks able to help me figure out how this patch may have broken some (gradient?) functionality? Thanks
Pretty easy, on the old code you apply the path and transform the CTM afterwards. With the patch you're doing it the other way around. This can't work. Change the order for lines 596/570 with 572/573 and it will work again. I bet you get the same problems for shadowed paths. So you have to do it there as well.
Helder Correia
Comment 9
2011-01-14 15:05:47 PST
Created
attachment 79008
[details]
Seems to be working work now. Thanks, Dirk.
Simon Fraser (smfr)
Comment 10
2011-01-14 15:10:18 PST
Comment on
attachment 79008
[details]
Seems to be working work now. Thanks, Dirk. Do your previous GraphicsContext::fillRect() changes have the same issue?
Helder Correia
Comment 11
2011-01-14 15:20:58 PST
(In reply to
comment #10
)
> (From update of
attachment 79008
[details]
) > Do your previous GraphicsContext::fillRect() changes have the same issue?
I don't think so.
Helder Correia
Comment 12
2011-01-14 15:27:42 PST
(In reply to
comment #11
)
> (In reply to
comment #10
) > > (From update of
attachment 79008
[details]
[details]) > > Do your previous GraphicsContext::fillRect() changes have the same issue? > > I don't think so.
Unless I should be calling CGContextConcatCTM() after CGContextClipToRect().
WebKit Commit Bot
Comment 13
2011-01-14 15:45:22 PST
The commit-queue encountered the following flaky tests while processing
attachment 79008
[details]
: http/tests/xmlhttprequest/basic-auth.html
bug 51613
(author:
ap@webkit.org
) The commit-queue is continuing to process your patch.
WebKit Commit Bot
Comment 14
2011-01-14 15:47:12 PST
Comment on
attachment 79008
[details]
Seems to be working work now. Thanks, Dirk. Clearing flags on attachment: 79008 Committed
r75833
: <
http://trac.webkit.org/changeset/75833
>
WebKit Commit Bot
Comment 15
2011-01-14 15:47:20 PST
All reviewed patches have been landed. Closing bug.
Simon Fraser (smfr)
Comment 16
2011-01-14 16:06:51 PST
In GraphicsContext::fillRect(), don't you need to call CGContextConcatCTM(context, m_state.fillGradient->gradientSpaceTransform()); after setting up the layer's context?
Dirk Schulze
Comment 17
2011-01-15 23:32:16 PST
Helder, can you point me to the other changes you made, that Simon mentioned? We have many failing tests on SVG (pixel tests fail). As far as I can see problems with filling and stroking tests with gradients. Because we don't see this failures in DRT, it must be problems with the drawing engine.
Helder Correia
Comment 18
2011-01-16 00:16:26 PST
(In reply to
comment #17
)
> Helder, can you point me to the other changes you made, that Simon mentioned? We have many failing tests on SVG (pixel tests fail). As far as I can see problems with filling and stroking tests with gradients. Because we don't see this failures in DRT, it must be problems with the drawing engine.
Dirk, there's only
r75139
and
bug 52509
is waiting for a review. Let me know how I can help you further.
Dirk Schulze
Comment 19
2011-01-16 02:46:21 PST
(In reply to
comment #18
)
> (In reply to
comment #17
) > > Helder, can you point me to the other changes you made, that Simon mentioned? We have many failing tests on SVG (pixel tests fail). As far as I can see problems with filling and stroking tests with gradients. Because we don't see this failures in DRT, it must be problems with the drawing engine. > > Dirk, there's only
r75139
and
bug 52509
is waiting for a review. Let me know how I can help you further.
The change on GraphicsContextCg in
r75139
looks bad. You changed the order of clipping and concatCTM. Looks like this caused the problem. I'll try it locally...
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