Rounding in layout pixels is very close to snapping in raster pixels if
there are no transforms involved. This is why it worked most of the time
and fell flat in many edge cases. In future parts of this series, we
will trust scene building and frame building to do the heavy lifting for
snapping purposes.
Differential Revision: https://phabricator.services.mozilla.com/D45058
Rounding in layout pixels is very close to snapping in raster pixels if
there are no transforms involved. This is why it worked most of the time
and fell flat in many edge cases. In future parts of this series, we
will trust scene building and frame building to do the heavy lifting for
snapping purposes.
Differential Revision: https://phabricator.services.mozilla.com/D45058
Rounding in layout pixels is very close to snapping in raster pixels if
there are no transforms involved. This is why it worked most of the time
and fell flat in many edge cases. In future parts of this series, we
will trust scene building and frame building to do the heavy lifting for
snapping purposes.
Differential Revision: https://phabricator.services.mozilla.com/D45058
Rounding in layout pixels is very close to snapping in raster pixels if
there are no transforms involved. This is why it worked most of the time
and fell flat in many edge cases. In future parts of this series, we
will trust scene building and frame building to do the heavy lifting for
snapping purposes.
Differential Revision: https://phabricator.services.mozilla.com/D45058
GPUVideoTextureHost::NumSubTextures() returns 0 when wrapped TextureHost does not exist. In this case, we do not have a content of GPUVideoTextureHost for WR render. And EnsureWrappedTextureHost() calling is added in GPUVideoTextureHost::NumSubTextures(), since GPUVideoTextureHost is not explicit about when a wrapped TextureHost is created.
Differential Revision: https://phabricator.services.mozilla.com/D39137
Bug 1558106 changed how picture caching works. With it, WebRenderTextureHostWrapper does not work as before. Then disable it for now.
Differential Revision: https://phabricator.services.mozilla.com/D34991
GeckoSurfaceTexture could bind to only one GL context at once. With WebRender, GeckoSurfaceTexture is soon bounded to sharedGL on render thread. It caused the problem if GeckoSurfaceTexture is rendered to WebGL. It could happen only for video's GeckoSurfaceTexture. To avoid the problem, the GeckoSurfaceTexture is bound to gl context when it is actually rendered on WebRender.
Differential Revision: https://phabricator.services.mozilla.com/D27873
With webrender, current gecko does not handle SurfaceTexture.getTransformMatrix() yet. SurfaceTexture is used for video decoding and WebGL. On both usages, when getTransformMatrix() is not handled, it actually worked as bottom left origin. Then gecko need to ignore y flip. AsyncImagePipelineManager::ApplyAsyncImageForPipeline() is a good place to handle the situations, since it handles canvas and video frame rendering. Long term solution is going to be handled by Bug 1507076.
Differential Revision: https://phabricator.services.mozilla.com/D28315
The receiver of this parameter treats it as a layout size, so it doesn't
make sense for the argument to be a LayerSize partway through the call
chain. Also the callers originally get this from a LayoutDevice rect;
so there's even less reason for this to be turned into a LayerSize. The
next patch will propagate this cleanup more.
Differential Revision: https://phabricator.services.mozilla.com/D25238
By using WebRenderTextureHostWrapper for canvas, we could avoid triggering frame build on WebRender backend if WebRenderTextureHostWrapper is only change.
Differential Revision: https://phabricator.services.mozilla.com/D19896
The only thing using both was perspective, but that's not really needed with the current setup.
This more closely matches Gecko, too.
Differential Revision: https://phabricator.services.mozilla.com/D16764
The only thing using both was perspective, but that's not really needed with the current setup.
This more closely matches Gecko, too.
Differential Revision: https://phabricator.services.mozilla.com/D16764
Port to separate SpatialId from ClipId in Webrender API (WR PR #3251).
Patch was originally written and reviewed on bug 1503447.
Depends on D16005
Differential Revision: https://phabricator.services.mozilla.com/D16006
Previously, WebRender was getting a rectangle for reference frames
and stacking contexts, and it had to carefully treat the origin of this rectange:
- by offseting all the items in a stacking context
- by negatively compensating the sticky frame scroll port according to the
parent reference frame origin
With this change, we stop providing any non-zero origins. Instead we accomplish
the same behavior using existing API primitives, such as reference frames:
1. when a stacking context has an origin, we push another reference frame for it
2. when computing the sticky frame scroll port, we take this origin into account
This slightly simplifies Gecko-WR API, but more importantly it would allow WR to
get rid of this logic (of handling origins), which in turn would allow to switch
the reference frames from push()/pop() model to just define(), like we do for
scroll/sticky frames already.
Differential Revision: https://phabricator.services.mozilla.com/D13081
When scrolling on Twitter video frames can sometimes be drawn with a flicker
above or below them. This is because the bounds for video frames' images that
we pass to WebRender are not rounded to pixel boundaries, and so they can end
up being rounded off in WebRender unexpectedly when composited.
So round off the bounds of video frame images to device pixel boundaries before
passing to WebRender.
Differential Revision: https://phabricator.services.mozilla.com/D6857
