On 04/19/2013 04:57 AM, João Jerónimo wrote:
Em 19-04-2013 01:52, [email protected] escreveu:
Might be useful to post the code.
Ok. I'll post it then.
I'm linking only the wayland libraries. One also needs to use the
-std=gnu++11 flag.
[...]
int main()
{
try {
printf("Hello world!!!!! Example Wayland client...\n");
// Connect
[...]
wl_display_dispatch(display);
wl_display_roundtrip(display);
cout << "End of globals..." << endl << endl;
// Create surface
[...]
for (int i=0; i<100*200; ++i) {
buffer[i] = 0x40404040;
}
wl_surface_attach(surface, buffer_wl, 0, 0);
wl_surface_damage(surface, 0, 0, 100, 200);
wl_surface_commit(surface);
for(;;);
When the program enters the infinite loop, the requests are still
sitting in the connection buffer in the client side. Before blocking,
clients should call wl_display_flush(). You'll find more details in the
Wayland client API documentation:
http://wayland.freedesktop.org/docs/html/chap-Library.html#sect-Library-Client
Cheers,
Ander
// Terminate connection
wl_display_disconnect(display);
return 0;
}
catch(string &errstr) {
cout << "FATAL: " << errstr << endl;
}
}
João Jerónimo
On 04/19, João Jerónimo wrote:
Hello.
I was trying to understand what is the minimal code needed to get a
square painter on the screen. However, although I can make the
client talk to the Weston compositor, enumerate the global objects,
etc, I can't still see my surface drawn in the compositor scene.
The steps that my program makes so far are as follows:
- call wl_display_connect(NULL)
- call wl_display_get_registry(display)
- Install listeners for the registry that wl_registry_bind() many
of the advertised objects. However, I'm not listening to the events
of the objects advertised by the registry. Is it needed?
- call wl_display_dispatch() and wl_display_roundtrip()
- call wl_compositor_create_surface()
- mkostemp() a file and ftruncate() it to some 10MB or so
- mmap() the entire file created
- call wl_shm_create_pool()
- call wl_shm_pool_create_buffer()
- call wl_display_dispatch()
- Fill the buffer with some content. I filled it entirely with
pattern 0x40404040.
- call wl_surface_attach(surface, buffer, 0, 0)
- Then the program just sits in an infinite loop...
Am I missing anything?
Sorry for my poor English (assuming that you think it's poor)....
João Jerónimo
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http://lists.freedesktop.org/mailman/listinfo/wayland-devel
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