Bug 172405 – [CG] Use the SPI CGImageSourceGetTypeWithData() to get the typeIdentifierHint of an image

• Component: Images
• Status: RESOLVED FIXED

[Said Abou-Hallawa]

I tried using CGImageSourceGetTypeWithURL() to get the typeIdentifierHint of an image. The typeIdentifierHint helps the CGImageSource choose the correct decoder from the beginning. This function works but it was very costly since it opens or loads the image file and read its header to guess its type. Opening and reading a local file takes many cycles to finish. Requesting the image resource through the network doubles the network traffic. Since we create the ImageDecoder when we first receive data from the network layer, we can use CGImageSourceGetTypeWithData() instead.

[Said Abou-Hallawa]

Created attachment 310744 [details]
Patch

[Said Abou-Hallawa]

<rdar://problem/31899716>

[Build Bot]

Comment on attachment 310744 [details]
Patch

Attachment 310744 [details] did not pass mac-wk2-ews (mac-wk2):
Output: http://webkit-queues.webkit.org/results/3780516

Number of test failures exceeded the failure limit.

[Build Bot]

Created attachment 310748 [details]
Archive of layout-test-results from ews107 for mac-elcapitan-wk2

The attached test failures were seen while running run-webkit-tests on the mac-wk2-ews.
Bot: ews107  Port: mac-elcapitan-wk2  Platform: Mac OS X 10.11.6

[Build Bot]

Comment on attachment 310744 [details]
Patch

Attachment 310744 [details] did not pass mac-debug-ews (mac):
Output: http://webkit-queues.webkit.org/results/3780510

Number of test failures exceeded the failure limit.

[Build Bot]

Created attachment 310750 [details]
Archive of layout-test-results from ews112 for mac-elcapitan

The attached test failures were seen while running run-webkit-tests on the mac-debug-ews.
Bot: ews112  Port: mac-elcapitan  Platform: Mac OS X 10.11.6

[Build Bot]

Comment on attachment 310744 [details]
Patch

Attachment 310744 [details] did not pass mac-ews (mac):
Output: http://webkit-queues.webkit.org/results/3781468

Number of test failures exceeded the failure limit.

[Build Bot]

Created attachment 310764 [details]
Archive of layout-test-results from ews100 for mac-elcapitan

The attached test failures were seen while running run-webkit-tests on the mac-ews.
Bot: ews100  Port: mac-elcapitan  Platform: Mac OS X 10.11.6

[Said Abou-Hallawa]

Created attachment 310800 [details]
Patch

[Build Bot]

Comment on attachment 310800 [details]
Patch

Attachment 310800 [details] did not pass mac-debug-ews (mac):
Output: http://webkit-queues.webkit.org/results/3787601

New failing tests:
imported/w3c/web-platform-tests/media-source/mediasource-buffered.html

[Build Bot]

Created attachment 310805 [details]
Archive of layout-test-results from ews115 for mac-elcapitan

The attached test failures were seen while running run-webkit-tests on the mac-debug-ews.
Bot: ews115  Port: mac-elcapitan  Platform: Mac OS X 10.11.6

[Said Abou-Hallawa]

Created attachment 310820 [details]
Patch

[Simon Fraser (smfr)]

Comment on attachment 310820 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=310820&action=review

> Source/WebCore/platform/graphics/ImageTypes.h:30
> +#if USE(CG)
> +typedef struct CGImageSource* CGImageSourceRef;
> +#endif

Why did this move?

[Said Abou-Hallawa]

Comment on attachment 310820 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=310820&action=review

>> Source/WebCore/platform/graphics/ImageTypes.h:30
>> +#endif
> 
> Why did this move?

I am planning to merge the following header files

Source/WebCore/platform/graphics/cg/ImageDecoderCG.h
Source/WebCore/platform/graphics/win/ImageDecoderDirect2D.h
Source/WebCore/platform/image-decoders/ImageDecoder.h

in one file:

Source/WebCore/platform/graphics/ImageDecoder.h

So I have been cleaning these header files to make it easy when they are merged.

[WebKit Commit Bot]

Comment on attachment 310820 [details]
Patch

Clearing flags on attachment: 310820

Committed r217246: <http://trac.webkit.org/changeset/217246>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.