Bug 162924 – [Win][Direct2D] Connect WebCore/WebKit Drawing

• Component: WebKit Misc.
• Status: RESOLVED FIXED

[Brent Fulgham]

This patch updates the Windows WebKit layer to use Direct2D for drawing. It also touches a number of WebCore implementation files to supply Direct2D-compatible drawing logic, as well as stubbing out some routines that are not yet supported in this new drawing mode.

This patch simply adds the new files. It does not incorporate them into the build.

[Brent Fulgham]

Created attachment 290675 [details]
Patch

[WebKit Commit Bot]

Attachment 290675 [details] did not pass style-queue:


ERROR: Source/WebKit/win/WebView.cpp:1146:  Use the class HWndDC instead of calling GetDC to avoid potential memory leaks.  [runtime/leaky_pattern] [5]
Total errors found: 1 in 6 files


If any of these errors are false positives, please file a bug against check-webkit-style.

[Brent Fulgham]

(In reply to comment #2)
> Attachment 290675 [details] did not pass style-queue:
> 
> 
> ERROR: Source/WebKit/win/WebView.cpp:1146:  Use the class HWndDC instead of
> calling GetDC to avoid potential memory leaks.  [runtime/leaky_pattern] [5]
> Total errors found: 1 in 6 files
> 
> 
> If any of these errors are false positives, please file a bug against
> check-webkit-style.

This is an error in the style checker. The 'GetDC' function here is a conversion routine from Direct2D. It has nothing to do with the HWndDC class.

[Alex Christensen]

Comment on attachment 290675 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=290675&action=review

> Source/WebKit/win/WebView.cpp:1246
> +    m_renderTarget->SetTags(2, __LINE__);

Why?

> Source/WebKit/win/WebView.cpp:1276
> +    (void)hr;

Just don't name hr.

[Brent Fulgham]

Comment on attachment 290675 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=290675&action=review

>> Source/WebKit/win/WebView.cpp:1246
>> +    m_renderTarget->SetTags(2, __LINE__);
> 
> Why?

This is a debugging function. I'll add a macro for the first argument. When Flush or EndDraw has an error, it outputs these two numbers, which can be used to identify which drawing logic was executing at the time of a failure.

>> Source/WebKit/win/WebView.cpp:1276
>> +    (void)hr;
> 
> Just don't name hr.

I'll use UNUSED_PARAM, since I want access to 'hr' when debugging so I can see what the error was.

[Brent Fulgham]

Committed r206816: <http://trac.webkit.org/changeset/206816>