A recent change made the OpenGL functions an interface of the functions
required for the implementation of GPU, a renderer for Gio operations.
That allowed for running Gio on external systems where OpenGL is
available.
However, to allow for non-OpenGL flavored backends such as Vulkan,
Metal and Direct3D, this change introduces Backend for the high-level
operations required by GPU. This change also adds a concrete backend
to package gl.
Type Backend is a first cut heavily based on OpenGL. Future changes will add
more backends, where the Backend interface quite possibly will need refinement.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
On Linux and FreeBSD, this means we no longer need to install Go twice,
since we don't need to bootstrap a Go build. This reduces the "install
go" step by over half a minute, and avoids installing a number of distro
packages.
Debian requires the pkg-config package to be explicit, as it's not part
of the build-essential metapackage, and we need it. It was being pulled
as a dependency from the golang package before.
OpenBSD is nearly the same change, modulo the fact that Go doesn't have
a binary release for it. So instead, we keep installing Go via the
system's package, and we download and build a source archive.
Finally, switch from Debian testing+experimental to simply unstable.
Sway 1.4 finally hit unstable a few days ago, and experimental is
extremely unstable, so this is a step in the right direction. Add a TODO
about going to just testing once sway 1.4 arrives there.
Signed-off-by: Daniel Martí <mvdan@mvdan.cc>
The rendering implementation is needed for using Gio UI with external
window libraries such as GLFW. Expose it in the new package gpu.
Updates #26
Signed-off-by: Elias Naur <mail@eliasnaur.com>
For integrating with external window implementations (replacing
package app), access to the event router is required. Extract it
and put it into the new package router.
Router may belong in package io/event, but can't without introducing
import cycles.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
We'd like to support Gio using a different renderer binding than
the builtin. A first step is to define the Functions interface
in package gl, and extract the concrete implementations to a
separate package.
Updates #26
Signed-off-by: Elias Naur <mail@eliasnaur.com>
- Focused: returns whether editor is focused
- CaretPos: returns the text line & column numbers of the caret.
- CaretCoords: returns the x & y pixel coordinates of the caret.
- NumLines: returns the number of text lines in the editor
Signed-off-by: Larry Clapp <larry@theclapp.org>
This type contains all the common bits, such as *testing.T, as well as
the channel and method used to wait for blocking until a frame is ready.
It also allows us to initialise this base separately from Start, which
keeps the exported method simpler to understand.
The base type is embedded into the specific driver types, so that the
code remains simple. While at it, start embedding *testing.T too, so
that we can write d.Fatalf instead of d.t.Fatalf. The drivers will only
have a small number of exported methods as per the interface, so it's
easy to keep those from colliding with the method set on T.
Signed-off-by: Daniel Martí <mvdan@mvdan.cc>
Editor's event processing assumes the cached layout is valid, but
it might not be if the program changed the Editor text between calling
Layout and Events.
Fixes#85 (I think)
Signed-off-by: Elias Naur <mail@eliasnaur.com>
Now that text layout and shaping operate on concrete sizes and not
units, Editor no longer needs to detect scaling changes. Remove it.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
First, replace LayoutOptions with an explicit maximum width parameter. The
single-field option struct doesn't carry its weight, and I don't think we'll
see more global layout options in the future. Rather, I expect options to cover
spans of text or be part of a Font.
Second, replace the unit.Converter with an scaled text size. It's simpler and
allow the Editor and similar widgets to easily detect whether their cached
layouts are stale. Package text no longer depends on package unit, which is
now dealt with at the widget-level only.
Finally, remove the Size field from Font. It was a design mistake: a Font is
assumed to cover all sizes, as evidenced by the FontRegistry disregarding
Size when looking up fonts.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
It's one less type (Align) and shorter:
Before:
layout.Align(layout.Center).Layout(...)
After
layout.Center.Layout(...)
It is also safer: since `layout.Align(...)` was a casting operation,
the Go compiler would not complain about an incompatible constant.
For example, the widget/material package contained a wrong cast:
layout.Align(layout.Start)
which should have been
layout.Align(layout.W)
After this change, attempting `layout.Start.Layout(...)` result
in a compile error.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
It passes the whole e2e test flow on my real device, a OnePlus 5 running
LineageOS 16.0 (Android 9).
I was also successful at running it against an x86-64 Android 8.0
emulator, but I'm not including any of that just yet. A patch later this
week will include a piece of code to set up and start an emulator, which
CI can then use to run the test.
Also stop requiring the screen dimensions to be enforced when running in
non-headless mode. An Android emulator can run at an arbitrary
resolution, and even in headless mode, but a real Android device will
have its own predefined resolution. Forcing the test user to set the
-headless=false flag to not get annoying "unexpected dimensions" errors
would be annoying.
That check doesn't really mean much, as our test app doesn't care about
the screen resolution. And we were only doing the check sometimes. Drop
it entirely, making the resolution parameters merely a hint so that we
can keep the drivers a bit more consistent.
Signed-off-by: Daniel Martí <mvdan@mvdan.cc>
I've seen a couple of "timed out waiting for a frame to be ready" errors
on CI in the past week. I think two seconds is a bit low, if the machine
in question is not very powerful or under stress - which is common for
CI environments.
Raise the timeout to 5s.
While at it, add some log lines to each e2e test, and mark waitForFrame
as a helper func, so that its errors show up at the caller's location.
Signed-off-by: Daniel Martí <mvdan@mvdan.cc>
Newer Windows NDKs add the "x86_64" platform suffix like other
OS'es. Remove the special case.
Newer NDKs are also installed in "ndk/x.y.z" versioned directories
instead of in "ndk-bundle". Support that.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
This is the kind of event one gets when using 'adb shell input tap x y',
which I am trying to use for the end-to-end tests.
Right now, we only have two pointer source types: mouse and touch.
On Android, emulated touch events tend to simulate the touchscreen, not
a mouse, so let's go with that as a fallback.
Perhaps in the future we will have another special pointer source for
this kind of event, such as "unknown" or "virtual".
Signed-off-by: Daniel Martí <mvdan@mvdan.cc>
Currently the golang.org/x/sys package is missing the Pipe2 call for OpenBSD.
The call exists on OpenBSD, it just isn't exposed.
This diff was tested buy adding the Pipe2 call and setting:
go mod edit -replace=golang.org/x/sys=/pat/to/modified/sys
Signed-off-by: Aaron Bieber <aaron@bolddaemon.com>
In preparation for using Shaper with an io.Reader, rework the API to not refer
to strings. In particular, introduce Glyph for holding the rune in addition to
the advance. For fast traversing of the underlying text, add Len to Line with
the UTF8 length.
Layout is a useless wrapper around []Line; remove it while we're
here.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
For example, if the test app fails to start on wayland, we'd block
~forever (ten minutes) waiting for it to render its first frame.
We don't have a good solution right now. But at least we can use a
relatively short timeout, to help out the human who rightfully expects
a result within ten seconds.
While at it, remove a sway "get_seats" command, which was a leftover
from my debugging of what input devices are available when running
headless.
Signed-off-by: Daniel Martí <mvdan@mvdan.cc>
Corrected the use of draw.Draw in paint.NewImageOp as the old use only works for images starting at the origin
Signed-off-by: Axel Paulander <axel.paulander@gmail.com>
Issue #77 seems to be caused by eglGetDisplay returning a zero
EGLDisplay, yet eglGetError returns EGL_SUCCESS. Since EGLDisplay
is not necessary a pointer type, the zero value may be valid.
Updates #77
Signed-off-by: Elias Naur <mail@eliasnaur.com>
Elias Naur