I created draft. I'm not sure if we need any units conversion in PaintContext. There is also strange 'clear' method, we use PagePx origin and ScreenPx size is it OK?
Source-Repo: https://github.com/servo/servo
Source-Revision: 8d8ffa8265d67e0ec89cf2d37d1c549b47187cca
Sometimes positioned content needs to be layered on top of stacking
contexts. The layer synthesis code can do this, but the current design
prevents it because stacking contexts are stored in a separate struct
member. In order to preserve tree order, mix stacking contexts into the
positioned content list, by adding a new StackingContextClass
DisplayItem. Such items do not have a base DisplayItem.
In some ways this simplifies the code, because we no longer have to
have a separate code path in the StackingContextLayerCreator.
Source-Repo: https://github.com/servo/servo
Source-Revision: 86e3add8fdc35fc6980bb63695781925607437b8
Before passing these layers to the paint task, expand them to pixel
boundaries. This ensures that subpixel edges of the layer will not be
clipped away and helps prevent rounding issues with layer contents.
Fixes#8166.
Source-Repo: https://github.com/servo/servo
Source-Revision: 94ca87e7ddc07160b9205c0112b60b0a951f0742
Instead of always promoting iframes to StackingContexts, integrate them
into the display list. This prevents stacking bugs when
non-stacking-context elements should be drawn on top of iframes.
To accomplish this, we add another step to ordering layer creation,
where LayeredItems in the DisplayList are added to layers described by
the LayerInfo structures collected at the end of the DisplayList.
Unlayered items that follow these layered items are added to
synthesized layers.
Another result of this change is that iframe layers can be positioned
directly at the location of the iframe fragment, eliminating the need
for the SubpageLayerInfo struct entirely.
Iframes are the first type of content treated this way, but this change
opens up the possibility to properly order canvas and all other layered
content that does not create a stacking context.
Source-Repo: https://github.com/servo/servo
Source-Revision: 11d23a41b31c2b2846d1e9c6b40e87ba7e2a095f
Layers that are composed of several stacking contexts that need to be
rendered on top of other layered content need synthesized layers.
Previously, these layers were placed into a stacking context that was
the same size as their parent. This patch creates a new type of
PaintLayer which simply holds a display list. The layer is sized to the
bounds of the DisplayList and its children are positioned relative to
the parent stacking context.
This will also be useful in the future, when items outside of
StackingContexts are given their own layer for render order purposes.
Source-Repo: https://github.com/servo/servo
Source-Revision: 6d52bdf4ffd5479780df4a3fb0ff07bd7378720e
This doesn't change any functionality, but it's the first step towards removing SubpageId.
Adding this change now will allow us to gradually change over code referencing subpage id rather than in one massive PR.
Introduces a namespace for pipeline ID generation - there is a namespace for the constellation thread, and one per script thread.
Source-Repo: https://github.com/servo/servo
Source-Revision: 098bdb5f22500a6e856b085a1140090f63ef8645
StackingContexts are added to layers when it is necessary to maintain
their ordering on top of other layered StackingContexts. Instead of
tracking the information about a layer scattered around into different
structs, combine it all into LayerInfo. LayerInfo will be used in the
future to hold layer information for DisplayItems that are layerized
independently of StackingContexts.
Source-Repo: https://github.com/servo/servo
Source-Revision: 27d468b6674b81c396aa0a13d8fe9eb410c12d6e
The old code that attempted to do this during layout wasn't able to work
for multiple reasons: it couldn't know where the iframe was going to be
on the page (because of nested iframes), and at the time it was building
the display list for a fragment it couldn't know where that fragment was
going to be in page coordinates.
This patch rewrites that code so that only the size of an iframe is
determined during layout, and the position is determined by the
compositor. Layout layerizes iframes and marks the iframe layers with
the appropriate subpage ID so that the compositor can place them
correctly.
Closes#7377.
Source-Repo: https://github.com/servo/servo
Source-Revision: a0cb657fe80859dd8862361631268479d1045432
This will be useful when PaintLayers that contain DisplayLists instead
of StackingContexts need to draw themselves. This is a simple
preparatory refactoring and doesn't change any behavior.
Source-Repo: https://github.com/servo/servo
Source-Revision: 09b970af4aeba749146a9a9215e346653016672b
This is a direct extract from my abandoned PR for a lint (#7546), along with some rather clumsy modifications (only on `components/script/dom/mod.rs` and `components/style/lib.rs`), because I had to sort some of the files again to make peace with tidy, which hasn't been educated about sorting yet!
Source-Repo: https://github.com/servo/servo
Source-Revision: a7208869f2903e36f9b2f540b55b50283d7df466
Use box tree characters to make DisplayLists easier to scan when
printing them out.
This is what the output looked like before:
```
#### start printing display list.
"####" Stacking context at Rect(800px×608px at (0px,0px)) with overflow Rect(800px×608px at (0px,0px)):
#### SolidColor(0,0,0,0). Rect(800px×608px at (0px,0px))
#### SolidColor(0,0,0,0). Rect(784px×0px at (8px,0px))
#### SolidColor(0,0.5019608,0,1). Rect(100px×100px at (0px,0px))
#### Child layers list length: 1
"########" Stacking context at Rect(100px×100px at (0px,0px)) with overflow Rect(100px×100px at (0px,0px)):
######## SolidColor(1,0,0,1). Rect(100px×100px at (0px,0px))
######## Child layers list length: 1
"############" Stacking context at Rect(100px×100px at (0px,0px)) with overflow Rect(100px×100px at (0px,0px)):
```
This is what it looks like after this patch:
```
┌ DisplayList
│ ├─ Layered StackingContext at Rect(800px×608px at (0px,0px)) with overflow Rect(800px×608px at (0px,0px)):
│ │ ├─ Block Backgrounds and Borders
│ │ │ ├─ SolidColor rgba(0, 0, 0, 0) @ Rect(800px×608px at (0px,0px)) (7f926f46f1f0)
│ │ │ └─ SolidColor rgba(0, 0, 0, 0) @ Rect(784px×0px at (8px,0px)) (7f926f46f2e0)
│ │ ├─ Layered StackingContext at Rect(100px×100px at (0px,0px)) with overflow Rect(100px×100px at (0px,0px)):
│ │ │ ├─ Backgrounds and Borders
│ │ │ │ └─ SolidColor rgba(1, 0, 0, 1) @ Rect(100px×100px at (0px,0px)) (7f926f46f310)
│ │ │ ├─ Layered StackingContext at Rect(100px×100px at (0px,0px)) with overflow Rect(100px×100px at (0px,0px)):
│ │ ├─ Layered StackingContext at Rect(100px×100px at (0px,0px)) with overflow Rect(100px×100px at (0px,0px)):
│ │ │ ├─ Backgrounds and Borders
│ │ │ │ └─ SolidColor rgba(0, 0.5019608, 0, 1) @ Rect(100px×100px at (0px,0px)) (7f926f46f3a0)
```
Source-Repo: https://github.com/servo/servo
Source-Revision: 4e9a888f1ac58866833418ee5e8253358918b741
Hi guys,
I just gave a big pass of RFC-0344 as per issue #6224 .
Pretty much renamed all the get_* fn that were used to fetch values.
I hope I didn't rename too much.
As said in the issue discussion, I didn't touch at the scripts folder so we keep the unsafe ones pretty explicit.
I've ran the whole pass of test, everything seems to be still working right :).
Please give feedback on this PR.
Thanks for looking into it.
Source-Repo: https://github.com/servo/servo
Source-Revision: b05f4aa3aa3085e65cb75433ae37bf272216d033
Previously, StackingContexts might have a PaintLayer. We switch the
ownership, for several reasons:
* We want PaintLayers to potentially contain something other
than a StackingContext soon.
* We want to delay the creation of PaintLayers until the last
minute, so that we can synthesize new layers for sandwiched
content.
This commit also implements the second goal. Instead of creating
PaintLayers during layout itself, wait until we are sorting and
layerizing a completed DisplayList.
Source-Repo: https://github.com/servo/servo
Source-Revision: 8e0b010117889550effa3ad793e7ee8f9b692b40
This patch is in preparation for more dynamic layerization of the
pieces of display lists. It also prevents having to sort the children
by z-index multiple times.
Source-Repo: https://github.com/servo/servo
Source-Revision: fa5ad1c6b4faa2c43ff79e77962b94034a4f2bd0
Fixes placement of the header on espn.go.com.
r? @glennw
Source-Repo: https://github.com/servo/servo
Source-Revision: a1cd27e6a3b961129fd4710513cc29e4f7c9cc67
and `for foo in bar.iter_mut(), and for foo in bar.into_iter()
(continuation of #7197)
Source-Repo: https://github.com/servo/servo
Source-Revision: 0d6d6a05009606dfbbfc9765d7dc2c745c18f6a5
Expands on the work by @wilmoz and cleans up the existing errors. Closes#7180. Closes#7111.
Source-Repo: https://github.com/servo/servo
Source-Revision: e74825f9fde8e222f4ba9bb24b2c2a3864c73e5f
Known issues:
* Display list optimization can sometimes optimize out elements that
should be shown. This affects the Enyo demo.
* The `overflow: scroll` container doesn't clip the inner layer properly
when borders, border radius, etc. are present.
* `overflow-x: scroll` and `overflow-y: scroll` don't work individually;
elements are scrolled all at once.
Note that multiple layers per stacking context aren't needed for the Enyo demo; rather the issue is that the height of the main area is being calculated incorrectly. (It looks like JS is measuring the height and poking in an explicit value that is too tall.)
r? @glennw
Source-Repo: https://github.com/servo/servo
Source-Revision: b05b02e11fb849e1f0153d009d8fcf0501ace8dc
This patch set introduces the `--multiprocess` (`-M`) switch. Right now, all it does it cause display lists to be serialized, but eventually it will cause actual processes to be spawned.
r? @metajack
Source-Repo: https://github.com/servo/servo
Source-Revision: c4480b5d0309acc7f154166b91992f73a85de57f
Now GLRasteizationContexts require having an active GLContext. This will
allow preserving GLContexts and possibly framebuffers between
rasterization sessions, improving GL Rasterization performance.
Linux Before:
+ Painting Per Tile 4.5559 4.3392 1.6920 18.5548 74
Painting 170.1554 151.8353 0.0008 350.1093 28
Linux After:
+ Painting Per Tile 3.8726 3.1299 1.5848 12.6732 62
Painting 13.5480 10.8947 0.0029 39.1198 23
Source-Repo: https://github.com/servo/servo
Source-Revision: ccd341cc68f034df675ffaf80673a1bece078e08
To actually make the multiprocess communication work, we'll need to
reroute the task creation to the pipeline or the compositor. But this
works as a first step.
r? @jdm
Source-Repo: https://github.com/servo/servo
Source-Revision: 1764267379a00b96a1df89f3917299a0c6fd325c
Uses a couple of extra threads to work around the lack of cross-process
boxed trait objects.
r? @nnethercote
Source-Repo: https://github.com/servo/servo
Source-Revision: f778e0eecf7cd8a2b870d18c3c305ff10d6b1894
We currently store LayerBuffers, because previously NativeSurfaces did
not record their own size. Now we can store NativeSurfaces directly,
which saves a bit of space in the surface cache and allows us to create
LayerBuffers only in the PaintTask.
This also means that instead of sending cached LayerBuffers, the
compositor can just send cached NativeSurfaces to the PaintTask.
Source-Repo: https://github.com/servo/servo
Source-Revision: 590cb33bb7ae9f4713a7c2ee8bfe1076c180e392
By doing this on either side of the call to the relevant tasks' start()
method, we don't need to store the mem::ProfilerChan or the reporter
name in the task itself.
Source-Repo: https://github.com/servo/servo
Source-Revision: cb52cc66581191b6f787a4a6d0d2844e2968b7eb
This commit introduces the `serde` dependency, which we will use to
serialize messages going between processes in multiprocess Servo.
This also adds a new debugging flag, `-Z print-display-list-json`,
allowing the output of display list serialization to be visualized.
This will be useful for our experiments with alternate rasterizers.
r? @metajack
Source-Repo: https://github.com/servo/servo
Source-Revision: ef9715203edf0a280d019b6e8823666f0e7020be
Now that NativeDisplay can be shared between the compositor and the
paint task, we can move the LayerBuffer cache to the compositor. This
allows surfaces to be potentially reused between different paint tasks
and will eventually allow OpenGL contexts to be preserved between
instances of GL rasterization.
Source-Repo: https://github.com/servo/servo
Source-Revision: 10b0d8c537c226400a617d28e8a060f9ca53d242
The compositing context, painting context and display metadata have all
been collapsed into a single NativeDisplay class.
Source-Repo: https://github.com/servo/servo
Source-Revision: 4674afe846df6720882da28cbd2c3087c17d0b22
Sorry for not doing it yesterday, I couldn't.
cc @metajack @SimonSapin
Source-Repo: https://github.com/servo/servo
Source-Revision: 4ebb95ccd8e034007eacb447a054919ef4af2bf7
* Add parser support for 3d transforms.
* Change ComputedMatrix to a representation that suits interpolation.
* Switch stacking contexts to use 4x4 matrices.
The transforms themselves are still converted to 2d and handled by azure for now, but this is a small standalone part that can be landed now to make it easier to review.
Source-Repo: https://github.com/servo/servo
Source-Revision: 05212b702dbafacd3d1d44e600139af8d7516308
Part of #6224
I certainly didn't remove all of them; I avoided `unsafe` areas and also `components/script`
Source-Repo: https://github.com/servo/servo
Source-Revision: f6fe1953343a417b62fb310a380af7c6973849b0
Example output from the memory profiler:
```
| 1.04 MiB -- url(http://en.wikipedia.org/wiki/Main_Page)
| 0.26 MiB -- display-list
| 0.78 MiB -- paint-task # new output line
| 0.78 MiB -- buffer-map # new output line
```
The buffer maps aren't huge, but they're worth measuring, and it's good
to get the memory profiler plumbing into PaintTask.
Source-Repo: https://github.com/servo/servo
Source-Revision: 10127d6b5a71ee8927413ab746300e32a54b079d
I've done a bit of job to get this done. Right now readback is still used, but we have a `LayerId` -> `CanvasRenderer` map on the paint task, that we can use to get rid of that.
I'd want review, to see if this is a good approach (I know it's not the initial `CanvasId` -> renderer approach, but it's pretty similar, since a canvas involves a `PaintLayer`).
I had to do a bit of refactoring to avoid cyclic dependencies between canvas and gfx. I'd want you to review them too.
It's mergeable and doesn't break any tests :P
Some of my main concerns:
* Does the canvas render really need to be behind an `Arc<Mutex<T>>`?
* I can't clone a `NativeSurface` right now (that's why the `SendNativeSurface()` msg is unimplemented in the WebGL task). It should be easy to add that to rust-layers, supposing the caller is responsible to mark it as non-leaking, any reason to not do it?
cc @jdm @pcwalton
Source-Repo: https://github.com/servo/servo
Source-Revision: ad53e95080144485e74cd9b9d48ce75e20de4e36
