Bug 90756

Summary:

Fix a potential bug of BitmapImage::frameCount().

Product:

WebKit

Reporter:

Dongseong Hwang <dongseong.hwang>

Component:

Images

Assignee:

Nobody <webkit-unassigned>

Status:

RESOLVED FIXED

Severity:

Normal

CC:

ap, dglazkov, gram, mitz, simon.fraser, skyul, webkit.review.bot

Priority:

Version:

528+ (Nightly build)

Hardware:

Unspecified

OS:

Unspecified

Bug Depends on:

Bug Blocks:

90375

Attachments:

Description	Flags
Patch	simon.fraser: review+, webkit.review.bot: commit-queue-
Archive of layout-test-results from gce-cr-linux-02	none

Description Dongseong Hwang 2012-07-08 23:57:58 PDT

If an ImageDecoder is not yet initialized, m_source.frameCount() returns 0. This does not mean that the frame count is actually 0. So we must set m_haveFrameCount to true only when m_frameCount is not 0.

The current code is okay because BitmapImage::frameCount() is never called before the decoder is initialized. However, this no longer holds true once we introduce parallel image decoders.

Comment 1 Dongseong Hwang 2012-07-09 01:10:17 PDT

Created attachment 151206 [details]
Patch

Comment 2 WebKit Review Bot 2012-07-09 01:43:59 PDT

Comment on attachment 151206 [details]
Patch

Attachment 151206 [details] did not pass chromium-ews (chromium-xvfb):
Output: http://queues.webkit.org/results/13165201

New failing tests:
http/tests/security/mixedContent/filesystem-url-in-iframe.html

Comment 3 WebKit Review Bot 2012-07-09 01:44:02 PDT

Created attachment 151216 [details]
Archive of layout-test-results from gce-cr-linux-02

The attached test failures were seen while running run-webkit-tests on the chromium-ews.
Bot: gce-cr-linux-02  Port: <class 'webkitpy.common.config.ports.ChromiumXVFBPort'>  Platform: Linux-2.6.39-gcg-201203291735-x86_64-with-Ubuntu-10.04-lucid

Comment 4 Dongseong Hwang 2012-07-09 02:27:28 PDT

It seems the failed layout test is not relevant to my patch.

Comment 5 Dongseong Hwang 2012-07-09 04:15:49 PDT

(In reply to comment #4)
> It seems the failed layout test is not relevant to my patch.

In my computer, the test is passed in chromium port.

Comment 6 Kwang Yul Seo 2012-07-10 04:39:21 PDT

I wonder if the patch needs to be uploaded again if the layout tests failed due to flakyness.

Comment 7 Kwang Yul Seo 2012-07-10 15:12:05 PDT

Committed r122269: <http://trac.webkit.org/changeset/122269>