If we aren't using a downscaler we avoid this bug because the mask is either 100% transparent or 100% opaque, and in the transparent case we just set the whole pixel (32 bits) to 0.
But when we are using a downscaler we just replace the alpha values in the original surface (leaving the color values untouched).
We need to go the full premultiply route because after downscaling the mask we can have any value for alpha instead of just 0 or 255.
This removes an unnecessary level of indirection by replacing all
nsStringGlue.h instances with just nsString.h.
--HG--
extra : rebase_source : 340989240af4018f3ebfd92826ae11b0cb46d019
imgLoader::ValidateEntry would aggressively determine an entry has
expired, even when the request hasn't yet begun. This is because the
expiration time for the entry was not set unless it was for a channel
which supports caching. Now we set the expiration time for all
channels, and if it doesn't support caching, it just expires at the
current time when imgRequest::OnStartRequest is called. Additionally,
imgLoader::ValidateEntry will not consider the expiration time in the
entry until it is non-zero.
Factory::DoesBackendSupportDataDrawtarget already fulfills the same
purpose and we should use that instead, as imgFrame is the only user of
the former API. It has the added bonus of allowing us to use shared
surfaces on Linux with WebRender, and using volatile surfaces on Windows
when D2D is disabled.
The "current URL" in the spec:
https://html.spec.whatwg.org/multipage/embedded-content.html#dom-img-currentsrc
maps to imgIRequest.URI, not currentURI.
Rename imgIRequest.currentURI to finalURI to prevent such confusion.
MozReview-Commit-ID: CjBh2V4z8K9
--HG--
extra : rebase_source : 01277d16ef12845e12cc846f9dd4a21ceeca283b
This also changes URIUtils.cpp:DeserializeURI() to use the mutator to instantiate new URIs, instead of using their default constructor.
MozReview-Commit-ID: JQOvIquuQAP
--HG--
extra : rebase_source : e146624c5ae423f7f69a738aaaafaa55dd0940d9
The "current URL" in the spec:
https://html.spec.whatwg.org/multipage/embedded-content.html#dom-img-currentsrc
maps to imgIRequest.URI, not currentURI.
Rename imgIRequest.currentURI to finalURI to prevent such confusion.
MozReview-Commit-ID: CjBh2V4z8K9
--HG--
extra : rebase_source : d3047aed22f116ff9a74099b646a84e597388673
This is important because it ensures we release the shared memory handle
(although not the data itself) for the underlying surface buffer when it
turns out we will probably never need to share it. If we do need to
share the surface data with the GPU process, it will reallocate a handle
if necessary, and close it when it is finished. On some platforms we
only have a finite number of handles, so if we don't need them, we
should close them.
This is largely trivial because the meat of the implementation is
located in ImageResource and we already added GetFrameInternal.
Interestingly VectorImage::IsUnlocked does not actually check if the
image is locked, but instead only checks for animation consumers. This
is consistent with its historical behavior on when to issue an unlocked
draw event.
Note that we do not implement the original GetImageContainer and
IsImageContainerAvailable APIs. This is because the former does not
accept an SVG context and it would be best to discourage its use in old
code lest we get incorrect/unexpected results.
No functional change aside from the implementation from
VectorImage::GetFrameAtSize being repurposed for GetFrameInternal and
returning an additional error code with the surface.
Creating a DrawTarget can be an expensive operation. This is especially
true in this case because checking for a cached already decoded version
of the VectorImage is expected to be fast. Currently VectorImage::Draw
is the typical path to render these images, but in the future, getting
the frames directly or indirectly (through an ImageContainer) will
become more common.
Milan Sreckovic
Florian Quèze
Ben Kelly
Timothy Nikkel
Andrew Osmond
Gijs Kruitbosch
Kartikaya Gupta
Samathy Barratt
Ciure Andrei
Sylvestre Ledru
Eric Rahm
Jonathan Watt
Valentin Gosu
shindli
Andrea Marchesini
Jesse Schwartzentruber
Tiberius Oros
Samael Wang
Noemi Erli