[PATCH weston 30/31] Add weston_compositor::input_init

Kristian Høgsberg hoegsberg at gmail.com
Thu May 31 13:58:09 PDT 2012


On Wed, May 30, 2012 at 04:32:08PM +0100, Daniel Stone wrote:
> This function gets called after backend_init, so compositors can add
> their input devices slightly later on in the process.  This gives us a
> chance to set the default XKB rulesets, in particular.

I don't like input_init.  The startup sequence is already getting
quirky and I don't want another callback in there.  We can set up the
default XKB map in weston_compositor_init() and avoid this.  Or maybe
the xkb rules in weston.ini should be a compositor-drm only thing.
Other backends get it from their host, and compositor-drm can read it
from weston.ini.

Kristian

> Signed-off-by: Daniel Stone <daniel at fooishbar.org>
> ---
>  src/compositor-drm.c     |   18 ++++++++++++++++--
>  src/compositor-wayland.c |   10 ++++------
>  src/compositor-x11.c     |    9 ++++-----
>  src/compositor.c         |   16 ++++++++--------
>  src/compositor.h         |    1 +
>  5 files changed, 33 insertions(+), 21 deletions(-)
> 
> diff --git a/src/compositor-drm.c b/src/compositor-drm.c
> index 98e8b07..b0376d7 100644
> --- a/src/compositor-drm.c
> +++ b/src/compositor-drm.c
> @@ -62,6 +62,8 @@ struct drm_compositor {
>  	uint32_t connector_allocator;
>  	struct tty *tty;
>  
> +	char *seat;
> +
>  	struct gbm_surface *dummy_surface;
>  	EGLSurface dummy_egl_surface;
>  
> @@ -1638,6 +1640,8 @@ drm_destroy(struct weston_compositor *ec)
>  		fprintf(stderr, "failed to drop master: %m\n");
>  	tty_destroy(d->tty);
>  
> +	free(ec->seat);
> +
>  	free(d);
>  }
>  
> @@ -1734,6 +1738,16 @@ switch_vt_binding(struct wl_seat *seat, uint32_t time, uint32_t key, void *data)
>  	tty_activate_vt(ec->tty, key - KEY_F1 + 1);
>  }
>  
> +static int
> +drm_input_init(struct weston_compositor *compositor)
> +{
> +	struct drm_compositor *ec = (struct drm_compositor *) compositor;
> +
> +	evdev_input_create(&ec->base, ec->udev, ec->seat);
> +
> +	return 0;
> +}
> +
>  static const char default_seat[] = "seat0";
>  
>  static struct weston_compositor *
> @@ -1786,6 +1800,7 @@ drm_compositor_create(struct wl_display *display,
>  		}
>  		udev_device_unref(device);
>  	}
> +	ec->seat = strdup(seat);
>  
>  	if (drm_device == NULL) {
>  		fprintf(stderr, "no drm device found\n");
> @@ -1797,6 +1812,7 @@ drm_compositor_create(struct wl_display *display,
>  		return NULL;
>  	}
>  
> +	ec->base.input_init = drm_input_init;
>  	ec->base.destroy = drm_destroy;
>  
>  	ec->base.focus = 1;
> @@ -1824,8 +1840,6 @@ drm_compositor_create(struct wl_display *display,
>  	udev_enumerate_unref(e);
>  	path = NULL;
>  
> -	evdev_input_create(&ec->base, ec->udev, seat);
> -
>  	loop = wl_display_get_event_loop(ec->base.wl_display);
>  	ec->drm_source =
>  		wl_event_loop_add_fd(loop, ec->drm.fd,
> diff --git a/src/compositor-wayland.c b/src/compositor-wayland.c
> index 60fb9d9..4b4f1eb 100644
> --- a/src/compositor-wayland.c
> +++ b/src/compositor-wayland.c
> @@ -245,7 +245,7 @@ create_border(struct wayland_compositor *c)
>  }
>  
>  static int
> -wayland_input_create(struct wayland_compositor *c)
> +wayland_input_init(struct weston_compositor *ec)
>  {
>  	struct weston_seat *seat;
>  
> @@ -254,9 +254,9 @@ wayland_input_create(struct wayland_compositor *c)
>  		return -1;
>  
>  	memset(seat, 0, sizeof *seat);
> -	weston_seat_init(seat, &c->base);
> +	weston_seat_init(seat, ec);
>  
> -	c->base.seat = seat;
> +	ec->seat = seat;
>  
>  	return 0;
>  }
> @@ -766,6 +766,7 @@ wayland_compositor_create(struct wl_display *display,
>  	if (wayland_compositor_init_egl(c) < 0)
>  		return NULL;
>  
> +	c->base.input_init = wayland_input_init;
>  	c->base.destroy = wayland_destroy;
>  
>  	/* Can't init base class until we have a current egl context */
> @@ -776,9 +777,6 @@ wayland_compositor_create(struct wl_display *display,
>  	if (wayland_compositor_create_output(c, width, height) < 0)
>  		return NULL;
>  
> -	if (wayland_input_create(c) < 0)
> -		return NULL;
> -
>  	loop = wl_display_get_event_loop(c->base.wl_display);
>  
>  	fd = wl_display_get_fd(c->parent.display, update_event_mask, c);
> diff --git a/src/compositor-x11.c b/src/compositor-x11.c
> index b314a1d..b137ac8 100644
> --- a/src/compositor-x11.c
> +++ b/src/compositor-x11.c
> @@ -129,8 +129,9 @@ x11_compositor_get_keymap(struct x11_compositor *c)
>  }
>  
>  static int
> -x11_input_create(struct x11_compositor *c)
> +x11_input_init(struct weston_compositor *ec)
>  {
> +	struct x11_compositor *c = (struct x11_compositor *) ec;
>  	struct x11_input *input;
>  	struct xkb_keymap *keymap;
>  
> @@ -139,7 +140,7 @@ x11_input_create(struct x11_compositor *c)
>  		return -1;
>  
>  	memset(input, 0, sizeof *input);
> -	weston_seat_init(&input->base, &c->base);
> +	weston_seat_init(&input->base, ec);
>  	weston_seat_init_pointer(&input->base);
>  
>  	keymap = x11_compositor_get_keymap(c);
> @@ -875,6 +876,7 @@ x11_compositor_create(struct wl_display *display,
>  	if (x11_compositor_init_egl(c) < 0)
>  		return NULL;
>  
> +	c->base.input_init = x11_input_init;
>  	c->base.destroy = x11_destroy;
>  
>  	/* Can't init base class until we have a current egl context */
> @@ -888,9 +890,6 @@ x11_compositor_create(struct wl_display *display,
>  		x += width;
>  	}
>  
> -	if (x11_input_create(c) < 0)
> -		return NULL;
> -
>  	c->xcb_source =
>  		wl_event_loop_add_fd(c->base.input_loop,
>  				     xcb_get_file_descriptor(c->conn),
> diff --git a/src/compositor.c b/src/compositor.c
> index e65ea5a..70db411 100644
> --- a/src/compositor.c
> +++ b/src/compositor.c
> @@ -2229,12 +2229,10 @@ device_handle_new_drag_icon(struct wl_listener *listener, void *data)
>  static void weston_compositor_xkb_init(struct weston_compositor *ec,
>  				       struct xkb_rule_names *names)
>  {
> +	ec->xkb_context = xkb_context_new(0);
>  	if (ec->xkb_context == NULL) {
> -		ec->xkb_context = xkb_context_new(0);
> -		if (ec->xkb_context == NULL) {
> -			fprintf(stderr, "failed to create XKB context\n");
> -			exit(1);
> -		}
> +		fprintf(stderr, "failed to create XKB context\n");
> +		exit(1);
>  	}
>  
>  	if (names)
> @@ -2289,9 +2287,6 @@ weston_compositor_build_global_keymap(struct weston_compositor *ec)
>  	if (ec->xkb_info.keymap != NULL)
>  		return;
>  
> -	if (ec->xkb_names.rules == NULL)
> -		weston_compositor_xkb_init(ec, NULL);
> -
>  	ec->xkb_info.keymap = xkb_map_new_from_names(ec->xkb_context,
>  						     &ec->xkb_names,
>  						     0);
> @@ -3089,6 +3084,11 @@ int main(int argc, char *argv[])
>  
>  	weston_compositor_xkb_init(ec, &xkb_names);
>  
> +	if (ec->input_init(ec) != 0) {
> +		fprintf(stderr, "failed to create input devices\n");
> +		exit(EXIT_FAILURE);
> +	}
> +
>  	ec->option_idle_time = idle_time;
>  	ec->idle_time = idle_time;
>  
> diff --git a/src/compositor.h b/src/compositor.h
> index 2df753f..8809f9d 100644
> --- a/src/compositor.h
> +++ b/src/compositor.h
> @@ -313,6 +313,7 @@ struct weston_compositor {
>  	PFNEGLUNBINDWAYLANDDISPLAYWL unbind_display;
>  	int has_bind_display;
>  
> +	int (*input_init)(struct weston_compositor *ec);
>  	void (*destroy)(struct weston_compositor *ec);
>  	int (*authenticate)(struct weston_compositor *c, uint32_t id);
>  
> -- 
> 1.7.10
> 
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