NewDevice creates a Device given an API, which is the necessary GPU
resources for a backend.
Convert gpu.New to take an API instead of a backend.Device directly.
In turn, this frees us to later unexport the backend package along with
the backend implementations (for now just gioui.org/gpu/gl for OpenGL).
It also allows programs that embed Gio (such as gioui.org/example/glfw)
to freely choose a backend, not just OpenGL.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
Now, it's possible to compile to Windows (`-target windows`) without
having `windres`. The PNG icon, manifest and version info will be
generated and include using `gogio`.
Signed-off-by: Inkeliz <inkeliz@inkeliz.com>
Now, gogio can build the program for Windows, using the `-target
windows`.
It will build with `-H=windowsgui`, by default. Also, it can compile for
multiple platforms if specified using `-target` (e.g. `-target arm, 386,
amd64`), the executable will have the respective suffix (i.e.
`_386.exe`).
gogio will also attach (any) appicon.png as executable icon resource and
include some information about the file and supported operating system.
Signed-off-by: Inkeliz <inkeliz@inkeliz.com>
Inkeliz