* Revert "Remove GetExternalViewEmbedder from surface (#22272)"
This reverts commit 5419f70f173db1c9f2d5db4c289560e68ce9b77b.
* Revert "Rasterizer is initialized with an external view embedder (#22405)"
This reverts commit f95df42e6e3d80f17c2024e9956768be9416717f.
This removes most of the remaining FLUTTER_NOLINT comments and opts
these files back into linter enforcement.
I've filed https://github.com/flutter/flutter/issues/68273 to require
that all FLUTTER_NOLINT comments be followed by a GitHub issue URL
describing the problem to be fixed.
This is part of a larger effort to expose the difference between GrDirectContext,
which runs on the GPU thread and can directly perform operations like uploading
textures, and GrRecordingContext, which can only queue up work to be delivered
to the GrDirectContext later.
The way transactions were added changed in
68fd833488.
This broke rendering using both Metal and OpenGL when no implicit transaction
was present on the transaction stack. The failure models differ based on Metal
vs. OpenGL and iOS/device versions. On older versions of iOS, rendering would
consume memory till exhaustion. On newer iOS versions, rendering would be stuck
(till a timeout). This patch brings transaction management back in line with as
it was earlier and also makes the Metal backend resilient to transactions being
present on the transaction stack at all. Since this is still quite brittle,
transaction management must be moved to IOSSurface as a followup.
Fixes https://github.com/flutter/flutter/issues/55784.
All Metal layers have their presentsWithTransaction property set to true.
However, when an external view embedder is not present, there is no mechanism to
ensure that the command buffer commit is within transaction scope. This works in
most cases as there there is usually an implicit (possibly nested) transaction
in place during rendering. However, when there isn’t, rendering will look paused
at an incorrect size. This code now works similar to OpenGL but will be
refactored for ease of understanding and consistency between the various
backends.
This moves the Metal `GrContext` creation utilities from `GPUSurfaceMetal` into
a separate `IOSContext` object subclass. An analogue of this object was used in
the GL regime for the management of onscreen and offscreen contexts that were
not tied to the lifecycle of the `GPUSurface`. This pattern has now been
generalized for use with all backends that need a resource context
(`IOSContextGL` and `IOContextMetal`).
The platform views controller management in the `ExternalViewEmbedder` interface
implementation was repeated three times for [Metal][metal], [OpenGL](opengl) and
[Software](software) rendering. This repetition has been removed and a single
implementation present in the base `IOSSurface` and used on all platforms.
Addition of new client rendering APIs should not affect how the engine renders
into the platform view interleaving levels.
All rendering API selection logic has been moved into a single set of utilities
in `rendering_api_selection.h`. This enables the removal of a lot of code blocks
guarded by `FLUTTER_SHELL_ENABLE_METAL`. The remaining uses of this will be
removed when unified builds are enabled.
The Metal backend now also adds traces similar to the GL backend.
The `IOGLContext` has been renamed to `IOContextGL` to be more in line with the
convention used in this library.
Fixes https://github.com/flutter/flutter/issues/41827
Adds https://github.com/flutter/flutter/issues/52150
[metal]: 1194ba2b21/shell/platform/darwin/ios/ios_surface_metal.mm (L55)
[opengl]: 1194ba2b21/shell/platform/darwin/ios/ios_surface_gl.mm (L95)
[software]: 1194ba2b21/shell/platform/darwin/ios/ios_surface_software.mm (L146)
* Revert "Add flow test fixtures and tests (#13986)"
This reverts commit 620f5281b819f304e8e9e945222e26b17b087cc3.
* Revert "Dynamically determine whether to use offscreen surface based on need (#13976)"
This reverts commit a86ef946563b020108320bbfb974bf7343284fd3.
This reverts commit f456423cfb820d07bb36e9a8979e3d75cc9d8d76.
This is being reverted because it caused flutter/flutter#45098
(images don't load on iOS).
By default, the CAMetalLayer backing store is a framebuffer attachment that is
only optimized for display. However, effects such as backdrop filters require
renderbuffer readback. Making this calls will result in exceptions. Disable the
write only optimization on such backing store.
Fixes https://github.com/flutter/flutter/issues/43555
