All GL function calls fill out a C.struct_fnargs and drop it on the
work queue. The Start function drains the work queue and hands
over a batch of calls to C.process which runs them. This allows
multiple GL calls to be executed in a single cgo call.
A GL call is marked as blocking if it returns a value, or if it
takes a Go pointer. In this case the call will not return until
C.process sends a value on the retvalue channel.
Change-Id: I4c76b2a8ad55f57b0c98d200d0fb708d4634e042
Reviewed-on: https://go-review.googlesource.com/10452
Reviewed-by: Nigel Tao <nigeltao@golang.org>
Config provides a way to concurrently access Width and Height.
Register provides a way for packages to run code on app state change
without plumbing changes all the way to the process main function.
This is motivated by gl/glutil.Image which needs to rebuild its
textures on start/stop and can be deeply nested.
(See golang.org/cl/9707 for the followup.)
Tested manually on android and darwin/amd64. Doing this kind makes it
clear any CL modifying this code needs a lot of manual testing right
now, so some kind of trybot support is something I'm going to
prioritise.
Fixesgolang/go#10686Fixesgolang/go#10461Fixesgolang/go#10442Fixesgolang/go#10226
Updates golang/go#10327
Change-Id: I2882ebf3995b6ed857cda823e94fbb17c54b43a8
Reviewed-on: https://go-review.googlesource.com/9708
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
An example of how to handle multiple concurrent touches using this design:
var touched = map[event.TouchSequenceID]*Widget{}
func touch(t event.Touch) {
if t.Type == event.TouchStart {
if w := widgetAt(t.Loc); w != nil {
touched[t.ID] = w
}
}
if w, ok := touched[t.ID]; ok {
// move/scroll widget, etc
}
if t.Type == event.TouchEnd {
delete(touched, t.ID)
}
}
Change-Id: I79910ef30abe9a41bc0720783022b1af081fbd43
Reviewed-on: https://go-review.googlesource.com/1895
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
Reviewed-by: Burcu Dogan <jbd@google.com>
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Orientation invokes onNativeWindowRedrawNeeded.
Requery the window width and height when redraw needed.
Change-Id: I45816f13b42db38e71d28cb05bf7cfffda75882c
Reviewed-on: https://go-review.googlesource.com/8700
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Change-Id: Ida06858336eb482d1d804279c468e09fad12b97f
Reviewed-on: https://go-review.googlesource.com/5578
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
The State can be used in the Start callback (and lazily-initialized
packages) instead of JavaInit. This stores a reference to the
android.context.Context for the (future) keyboard package and for
setting TMPDIR.
Second attempt at https://golang.org/cl/4400.
Change-Id: I673997b26ab25ce5140cb31950593d8c6dbd9c51
Reviewed-on: https://go-review.googlesource.com/5555
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
Android delivers events in a batch. Previously, only the first event of the batch was passed to the Go callback, resulting in many events (typically corresponding to non-primary touches) being dropped.
Change-Id: I4b01bb6c4d1c88dec6c8fa379875043dfc0e9986
Reviewed-on: https://go-review.googlesource.com/1894
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Change-Id: If8ea6aaf2fb2c62eaf4119526a8bb46b8a84b982
Reviewed-on: https://go-review.googlesource.com/1881
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
Leave this up to the apps. Right now the current face culling
direction does not match glimage.
LGTM=nigeltao
R=hyangah, nigeltao
CC=golang-codereviews
https://golang.org/cl/185870043
Missing many features (like event processing). This is
just enough to get example/basic working.
LGTM=nigeltao
R=golang-codereviews, capnm9, bryanturley, nigeltao, crawshaw
CC=golang-codereviews
https://golang.org/cl/131030043
David Crawshaw
Gordon Klaus
Burcu Dogan
David Crawshaw
Andrew Gerrand
Nigel Tao