Promote clear primitives to be picture cache slices that can
be drawn during the composite step. Without this, the clear
primitive is not correct since it only operates on the slice
it is assigned to, not the entire background before it.
Differential Revision: https://phabricator.services.mozilla.com/D48139
--HG--
extra : moz-landing-system : lando
We need to detect this code path in renderer, and call the
legacy draw_color_target method.
Differential Revision: https://phabricator.services.mozilla.com/D48105
--HG--
extra : moz-landing-system : lando
Previously, picture cache tiles were added to normal batches, and drawn
via the brush_image shader. Since all content is now in picture cache
tiles, we can instead draw the tiles via a separate code path. The tiles
for all picture caches are collected into a single composite config, that
is stored in the Frame structure. These two changes provide a number of
advantages:
* The composite shader is very simple - it doesn't need to deal with
transforms, anti-aliasing, repetition etc.
* Since we create the tile batches in render(), rather than in the
backend, we can take advantage of information not available until
the render() call. For example, Gecko will provide information here
when the partial presentation rects need to be reset. This will be
used to enable partial presentation parameters on Windows.
* In future, we can access this list of tiles to be composited, and use
them to configure the OS compositor integration, and hand the tiles
directly to the OS compositor.
* In future, we can apply global optimizations to the set of picture
cache tiles (e.g. occlude background tiles on CPU to skip paying
the z-reject cost of drawing them).
* In future, we can take advantage of the simpler composite path
for software rasterizer implementations.
Differential Revision: https://phabricator.services.mozilla.com/D47724
--HG--
extra : moz-landing-system : lando
In addition, make sure the descriptor size stays in sync with the visible rect's size.
The descriptor's size stored in the resource cache is pretty much obsolete now, we should be able to clean it up and remove it.
Differential Revision: https://phabricator.services.mozilla.com/D46803
--HG--
extra : moz-landing-system : lando
In addition, make sure the descriptor size stays in sync with the visible rect's size.
The descriptor's size stored in the resource cache is pretty much obsolete now, we should be able to clean it up and remove it.
Differential Revision: https://phabricator.services.mozilla.com/D46803
--HG--
extra : moz-landing-system : lando
Once this patch lands, all content drawn by WebRender is drawn into
a picture cache surface.
This will incur some extra GPU memory overhead since there are extra
GPU texture buffers. Much of this can be reduced by adding a couple
of simple optimizations in future to detect tiles that are solid
colors only.
With this change, we'll now be able to provide exact dirty rects for
the entire screen without any hacks, and start the work to draw into
OS compositor surfaces directly.
Differential Revision: https://phabricator.services.mozilla.com/D47395
--HG--
extra : moz-landing-system : lando
In addition, make sure the descriptor size stays in sync with the visible rect's size.
The descriptor's size stored in the resource cache is pretty much obsolete now, we should be able to clean it up and remove it.
Differential Revision: https://phabricator.services.mozilla.com/D46803
--HG--
extra : moz-landing-system : lando
Once this patch lands, all content drawn by WebRender is drawn into
a picture cache surface.
This will incur some extra GPU memory overhead since there are extra
GPU texture buffers. Much of this can be reduced by adding a couple
of simple optimizations in future to detect tiles that are solid
colors only.
With this change, we'll now be able to provide exact dirty rects for
the entire screen without any hacks, and start the work to draw into
OS compositor surfaces directly.
Differential Revision: https://phabricator.services.mozilla.com/D47395
--HG--
extra : moz-landing-system : lando
Once this patch lands, all content drawn by WebRender is drawn into
a picture cache surface.
This will incur some extra GPU memory overhead since there are extra
GPU texture buffers. Much of this can be reduced by adding a couple
of simple optimizations in future to detect tiles that are solid
colors only.
With this change, we'll now be able to provide exact dirty rects for
the entire screen without any hacks, and start the work to draw into
OS compositor surfaces directly.
Differential Revision: https://phabricator.services.mozilla.com/D47395
--HG--
extra : moz-landing-system : lando
To support NDK r20, wrench needs to be built with a more recent, upstream
(though still unpublished) version of cargo-apk. This has some consequences
which have been adjusted for:
* Gradle is no longer required to build wrench.
* The output apk file paths have changed.
* The apks are now signed automatically.
* The default activity name has changed.
* Android permissions must be explicitly requested.
* We must ensure winit is built with a matching version of android_glue.
Differential Revision: https://phabricator.services.mozilla.com/D47129
--HG--
extra : moz-landing-system : lando
Previously, the setup_picture_caching function was hard coded
to support only a very specific shape of display list. With this
change, flags are added to PrimitiveCluster that can specify
if a picture cache slice should be created before / after this
cluster when picture caching is set up.
The usage of these flags in this patch matches the old behaviour,
so should not have any functional effect.
However, in future we will make use of this functionality to
create picture slices for a number of different use cases, such as:
* Creating cache tiles for the UI.
* Slicing the scene where there are video elements, in order to
allow these to be composited directly by the OS. This may also
apply to WebGL and/or canvas elements.
* Slicing the scene when there is a very large fixed position
background image or other element, to avoid invalidating the
entire tile cache each frame.
Differential Revision: https://phabricator.services.mozilla.com/D46125
--HG--
extra : moz-landing-system : lando
Previously, the setup_picture_caching function was hard coded
to support only a very specific shape of display list. With this
change, flags are added to PrimitiveCluster that can specify
if a picture cache slice should be created before / after this
cluster when picture caching is set up.
The usage of these flags in this patch matches the old behaviour,
so should not have any functional effect.
However, in future we will make use of this functionality to
create picture slices for a number of different use cases, such as:
* Creating cache tiles for the UI.
* Slicing the scene where there are video elements, in order to
allow these to be composited directly by the OS. This may also
apply to WebGL and/or canvas elements.
* Slicing the scene when there is a very large fixed position
background image or other element, to avoid invalidating the
entire tile cache each frame.
Differential Revision: https://phabricator.services.mozilla.com/D46125
--HG--
extra : moz-landing-system : lando
This approach does have some stacking issues. The way to fix this would
be to instrument the brush_image shader rather than adding debug rects.
Something like: #ifdef WR_FEATURE_SFW frag.color = vec4(0,1,1,1); #endif
That's slightly more involved though, so I'm going to leave it for now.
Differential Revision: https://phabricator.services.mozilla.com/D47155
--HG--
extra : moz-landing-system : lando
As it turns out, the difference between the snapped local rect and the
unsnapped local rect was not just that the former contained snapped
primitives and the latter contained unsnapped primitives, but also that
the former took into account surface inflation for primitives, the
entire clip chain instead of just the primitive's local clip, and
removal of culled primitives. As such, the picture's rects can be wildly
different, even if snapping has been taken care of earlier, and parts of
WebRender have come to rely upon this more accurate representation of a
picture.
Differential Revision: https://phabricator.services.mozilla.com/D46605
--HG--
extra : moz-landing-system : lando
Adds a module documentation in segment.rs giving an overview of the role of primitive segments and how they interact with clipping. Also reformatted the clip.rs documentation to play well with rustdoc.
Differential Revision: https://phabricator.services.mozilla.com/D46472
--HG--
extra : moz-landing-system : lando
As it turns out, the difference between the snapped local rect and the
unsnapped local rect was not just that the former contained snapped
primitives and the latter contained unsnapped primitives, but also that
the former took into account surface inflation for primitives, the
entire clip chain instead of just the primitive's local clip, and
removal of culled primitives. As such, the picture's rects can be wildly
different, even if snapping has been taken care of earlier, and parts of
WebRender have come to rely upon this more accurate representation of a
picture.
Differential Revision: https://phabricator.services.mozilla.com/D46605
--HG--
extra : moz-landing-system : lando
As it turns out, the difference between the snapped local rect and the
unsnapped local rect was not just that the former contained snapped
primitives and the latter contained unsnapped primitives, but also that
the former took into account surface inflation for primitives, the
entire clip chain instead of just the primitive's local clip, and
removal of culled primitives. As such, the picture's rects can be wildly
different, even if snapping has been taken care of earlier, and parts of
WebRender have come to rely upon this more accurate representation of a
picture.
Differential Revision: https://phabricator.services.mozilla.com/D46605
--HG--
extra : moz-landing-system : lando
Adds a module documentation in segment.rs giving an overview of the role of primitive segments and how they interact with clipping. Also reformatted the clip.rs documentation to play well with rustdoc.
Differential Revision: https://phabricator.services.mozilla.com/D46472
--HG--
extra : moz-landing-system : lando
Fix scissor rect being incorrect during pinch zoom due to floating
point inaccuracies.
Differential Revision: https://phabricator.services.mozilla.com/D46743
--HG--
extra : moz-landing-system : lando
We only use the png codec so let's save some link time by not including
the other codecs.
Differential Revision: https://phabricator.services.mozilla.com/D46317
--HG--
extra : moz-landing-system : lando
Previously, the setup_picture_caching function was hard coded
to support only a very specific shape of display list. With this
change, flags are added to PrimitiveCluster that can specify
if a picture cache slice should be created before / after this
cluster when picture caching is set up.
The usage of these flags in this patch matches the old behaviour,
so should not have any functional effect.
However, in future we will make use of this functionality to
create picture slices for a number of different use cases, such as:
* Creating cache tiles for the UI.
* Slicing the scene where there are video elements, in order to
allow these to be composited directly by the OS. This may also
apply to WebGL and/or canvas elements.
* Slicing the scene when there is a very large fixed position
background image or other element, to avoid invalidating the
entire tile cache each frame.
Differential Revision: https://phabricator.services.mozilla.com/D46125
--HG--
extra : moz-landing-system : lando
This fixes a case where the is_same_content field was no longer
being reset to true before dependency calculation could occur.
In some cases, this could result in a tile being updated, but
the dirty rect being empty, which meant all primitives in that
tile would fail the visibility culling test.
Differential Revision: https://phabricator.services.mozilla.com/D46247
--HG--
extra : moz-landing-system : lando
