Presumably this started happening after we stopped setting the
checkerboard color all of the time.
--HG--
extra : rebase_source : d9c76561256161335727d3e76c8a8aed37a36c97
The crashes seem to be caused by SurfaceChange breaking any future
onDrawFrame calls. We don't seem to handle renewing the context at all. I added
mController.disposeGLContext(); mController.initGLContext(); to the
SizeChange::run() but that doesn't seem to fix it.
Bug 739867 will add this support back.
--HG--
extra : rebase_source : a4f71b22f381756c4285311cd3288b3ef46d5543
Fix overdrawing of the checkerboard layer by letting layers have a concept of
a display-port, and keeping the root layer's display port in track with
Gecko's.
Fix overdrawing of the checkerboard layer by letting layers have a concept of
a display-port, and keeping the root layer's display port in track with
Gecko's.
Rather than re-render the scrollbar texture and re-upload it when the opacity
changes, just render/upload it once and use a shader to modify the opacity.
Rename and make public the default shaders used in LayerRenderer, and make
loadShader a public, static method. This should make it easier for layers to
implement their own shader programs.
Not only does this reduce the amount of cruft needed while getting and setting these properties, it
makes the code more consistent because we don't have half of this stored in the Layer base class and
the other half provided by an abstract method implementation in subclasses. Furthermore, this
allows the VirtualLayer size to be updated based on the area painted by gecko rather than remaining
fixed at the view size when the virtual layer was created.
Only update tiles that intersect with the screen, and asynchronously update
invisible tiles over multiple subsequent frames. This has the effect of
spreading out non-critical texture-upload over time and removes some juddering
on devices that don't support gralloc.
This backs out changes d8fc13006aa4, ddde7a49f6f7, 34b1cc9454d2 and
8919c54229e1, leaving in some initialisation fixes that were introduced when
rebasing.
This work may be re-applied at a later date.
This adds checkerboard profiling to LayerRenderer, that can be enabled either
by enabling debug logging of the "GeckoLayerRendererProf" tag, or via
reflection using PanningPerfAPI.
