mirror of
https://github.com/brl/mutter.git
synced 2024-12-26 21:02:14 +00:00
e5bde0b074
This adds an extremely minimal wayland compositor to tests/interactive to test the ClutterWaylandSurface actor. Currently this minimal compositor doesn't support any input, it simply paints client surfaces fixed at the top-left of the stage. Reviewed-by: Emmanuele Bassi <ebassi@linux.intel.com>
568 lines
15 KiB
C
568 lines
15 KiB
C
#define COGL_ENABLE_EXPERIMENTAL_2_0_API
|
|
#include <clutter/clutter.h>
|
|
#include <clutter/wayland/clutter-wayland-compositor.h>
|
|
#include <clutter/wayland/clutter-wayland-surface.h>
|
|
|
|
#include <glib.h>
|
|
#include <sys/time.h>
|
|
#include <string.h>
|
|
|
|
#include <wayland-server.h>
|
|
|
|
typedef struct _TWSCompositor TWSCompositor;
|
|
|
|
typedef struct
|
|
{
|
|
struct wl_buffer *wayland_buffer;
|
|
GList *surfaces_attached_to;
|
|
} TWSBuffer;
|
|
|
|
typedef struct
|
|
{
|
|
TWSCompositor *compositor;
|
|
struct wl_surface wayland_surface;
|
|
int x;
|
|
int y;
|
|
TWSBuffer *buffer;
|
|
ClutterActor *actor;
|
|
} TWSSurface;
|
|
|
|
typedef struct
|
|
{
|
|
guint32 flags;
|
|
int width;
|
|
int height;
|
|
int refresh;
|
|
} TWSMode;
|
|
|
|
typedef struct
|
|
{
|
|
struct wl_object wayland_output;
|
|
int x;
|
|
int y;
|
|
int width_mm;
|
|
int height_mm;
|
|
/* XXX: with sliced stages we'd reference a CoglFramebuffer here. */
|
|
|
|
GList *modes;
|
|
} TWSOutput;
|
|
|
|
typedef struct
|
|
{
|
|
GSource source;
|
|
GPollFD pfd;
|
|
struct wl_event_loop *loop;
|
|
} WaylandEventSource;
|
|
|
|
typedef struct
|
|
{
|
|
struct wl_resource resource;
|
|
} TWSFrameCallback;
|
|
|
|
struct _TWSCompositor
|
|
{
|
|
struct wl_display *wayland_display;
|
|
struct wl_shm *wayland_shm;
|
|
struct wl_event_loop *wayland_loop;
|
|
ClutterActor *stage;
|
|
GList *outputs;
|
|
GSource *wayland_event_source;
|
|
GList *surfaces;
|
|
GArray *frame_callbacks;
|
|
};
|
|
|
|
static guint32
|
|
get_time (void)
|
|
{
|
|
struct timeval tv;
|
|
gettimeofday (&tv, NULL);
|
|
return tv.tv_sec * 1000 + tv.tv_usec / 1000;
|
|
}
|
|
|
|
static gboolean
|
|
wayland_event_source_prepare (GSource *base, int *timeout)
|
|
{
|
|
*timeout = -1;
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
wayland_event_source_check (GSource *base)
|
|
{
|
|
WaylandEventSource *source = (WaylandEventSource *)base;
|
|
return source->pfd.revents;
|
|
}
|
|
|
|
static gboolean
|
|
wayland_event_source_dispatch (GSource *base,
|
|
GSourceFunc callback,
|
|
void *data)
|
|
{
|
|
WaylandEventSource *source = (WaylandEventSource *)base;
|
|
wl_event_loop_dispatch (source->loop, 0);
|
|
return TRUE;
|
|
}
|
|
|
|
static GSourceFuncs wayland_event_source_funcs =
|
|
{
|
|
wayland_event_source_prepare,
|
|
wayland_event_source_check,
|
|
wayland_event_source_dispatch,
|
|
NULL
|
|
};
|
|
|
|
GSource *
|
|
wayland_event_source_new (struct wl_event_loop *loop)
|
|
{
|
|
WaylandEventSource *source;
|
|
|
|
source = (WaylandEventSource *) g_source_new (&wayland_event_source_funcs,
|
|
sizeof (WaylandEventSource));
|
|
source->loop = loop;
|
|
source->pfd.fd = wl_event_loop_get_fd (loop);
|
|
source->pfd.events = G_IO_IN | G_IO_ERR;
|
|
g_source_add_poll (&source->source, &source->pfd);
|
|
|
|
return &source->source;
|
|
}
|
|
|
|
static TWSBuffer *
|
|
tws_buffer_new (struct wl_buffer *wayland_buffer)
|
|
{
|
|
TWSBuffer *buffer = g_slice_new (TWSBuffer);
|
|
|
|
buffer->wayland_buffer = wayland_buffer;
|
|
buffer->surfaces_attached_to = NULL;
|
|
|
|
return buffer;
|
|
}
|
|
|
|
static void
|
|
tws_buffer_free (TWSBuffer *buffer)
|
|
{
|
|
GList *l;
|
|
|
|
buffer->wayland_buffer->user_data = NULL;
|
|
|
|
for (l = buffer->surfaces_attached_to; l; l = l->next)
|
|
{
|
|
TWSSurface *surface = l->data;
|
|
surface->buffer = NULL;
|
|
}
|
|
|
|
g_list_free (buffer->surfaces_attached_to);
|
|
g_slice_free (TWSBuffer, buffer);
|
|
}
|
|
|
|
static void
|
|
shm_buffer_created (struct wl_buffer *wayland_buffer)
|
|
{
|
|
wayland_buffer->user_data = tws_buffer_new (wayland_buffer);
|
|
}
|
|
|
|
static void
|
|
shm_buffer_damaged (struct wl_buffer *wayland_buffer,
|
|
gint32 x,
|
|
gint32 y,
|
|
gint32 width,
|
|
gint32 height)
|
|
{
|
|
TWSBuffer *buffer = wayland_buffer->user_data;
|
|
GList *l;
|
|
|
|
for (l = buffer->surfaces_attached_to; l; l = l->next)
|
|
{
|
|
TWSSurface *surface = l->data;
|
|
ClutterWaylandSurface *surface_actor =
|
|
CLUTTER_WAYLAND_SURFACE (surface->actor);
|
|
clutter_wayland_surface_damage_buffer (surface_actor,
|
|
wayland_buffer,
|
|
x, y, width, height);
|
|
}
|
|
}
|
|
|
|
static void
|
|
shm_buffer_destroyed (struct wl_buffer *wayland_buffer)
|
|
{
|
|
if (wayland_buffer->user_data)
|
|
tws_buffer_free ((TWSBuffer *)wayland_buffer->user_data);
|
|
}
|
|
|
|
const static struct wl_shm_callbacks shm_callbacks = {
|
|
shm_buffer_created,
|
|
shm_buffer_damaged,
|
|
shm_buffer_destroyed
|
|
};
|
|
|
|
static void
|
|
tws_surface_destroy (struct wl_client *wayland_client,
|
|
struct wl_resource *wayland_resource)
|
|
{
|
|
wl_resource_destroy (wayland_resource, get_time ());
|
|
}
|
|
|
|
static void
|
|
tws_surface_detach_buffer (TWSSurface *surface)
|
|
{
|
|
TWSBuffer *buffer = surface->buffer;
|
|
|
|
if (buffer)
|
|
{
|
|
buffer->surfaces_attached_to =
|
|
g_list_remove (buffer->surfaces_attached_to, surface);
|
|
if (buffer->surfaces_attached_to == NULL)
|
|
tws_buffer_free (buffer);
|
|
surface->buffer = NULL;
|
|
}
|
|
}
|
|
|
|
static void
|
|
tws_surface_attach_buffer (struct wl_client *wayland_client,
|
|
struct wl_resource *wayland_surface_resource,
|
|
struct wl_resource *wayland_buffer_resource,
|
|
gint32 dx, gint32 dy)
|
|
{
|
|
struct wl_buffer *wayland_buffer = wayland_buffer_resource->data;
|
|
TWSBuffer *buffer = wayland_buffer->user_data;
|
|
TWSSurface *surface = wayland_surface_resource->data;
|
|
TWSCompositor *compositor = surface->compositor;
|
|
ClutterWaylandSurface *surface_actor;
|
|
|
|
/* XXX: in the case where we are reattaching the same buffer we can
|
|
* simply bail out. Note this is important because if we don't bail
|
|
* out then the _detach_buffer will actually end up destroying the
|
|
* buffer we're trying to attach. */
|
|
if (buffer && surface->buffer == buffer)
|
|
return;
|
|
|
|
tws_surface_detach_buffer (surface);
|
|
|
|
/* XXX: we will have been notified of shm buffers already via the
|
|
* callbacks, but this will be the first we know of drm buffers */
|
|
if (!buffer)
|
|
{
|
|
buffer = tws_buffer_new (wayland_buffer);
|
|
wayland_buffer->user_data = buffer;
|
|
}
|
|
|
|
g_return_if_fail (g_list_find (buffer->surfaces_attached_to, surface) == NULL);
|
|
|
|
buffer->surfaces_attached_to = g_list_prepend (buffer->surfaces_attached_to,
|
|
surface);
|
|
|
|
if (!surface->actor)
|
|
{
|
|
surface->actor = clutter_wayland_surface_new (&surface->wayland_surface);
|
|
clutter_container_add_actor (CLUTTER_CONTAINER (compositor->stage),
|
|
surface->actor);
|
|
}
|
|
|
|
surface_actor = CLUTTER_WAYLAND_SURFACE (surface->actor);
|
|
if (!clutter_wayland_surface_attach_buffer (surface_actor, wayland_buffer,
|
|
NULL))
|
|
g_warning ("Failed to attach buffer to ClutterWaylandSurface");
|
|
|
|
surface->buffer = buffer;
|
|
}
|
|
|
|
static void
|
|
tws_surface_damage (struct wl_client *client,
|
|
struct wl_resource *resource,
|
|
gint32 x,
|
|
gint32 y,
|
|
gint32 width,
|
|
gint32 height)
|
|
{
|
|
}
|
|
|
|
static void
|
|
destroy_frame_callback (struct wl_resource *callback_resource)
|
|
{
|
|
TWSFrameCallback *callback = callback_resource->data;
|
|
|
|
g_slice_free (TWSFrameCallback, callback);
|
|
}
|
|
|
|
static void
|
|
tws_surface_frame (struct wl_client *client,
|
|
struct wl_resource *surface_resource,
|
|
guint32 callback_id)
|
|
{
|
|
TWSFrameCallback *callback;
|
|
TWSSurface *surface = surface_resource->data;
|
|
|
|
callback = g_slice_new0 (TWSFrameCallback);
|
|
callback->resource.object.interface = &wl_callback_interface;
|
|
callback->resource.object.id = callback_id;
|
|
callback->resource.destroy = destroy_frame_callback;
|
|
callback->resource.data = callback;
|
|
|
|
wl_client_add_resource (client, &callback->resource);
|
|
|
|
g_array_append_val (surface->compositor->frame_callbacks, callback);
|
|
}
|
|
|
|
const struct wl_surface_interface tws_surface_interface = {
|
|
tws_surface_destroy,
|
|
tws_surface_attach_buffer,
|
|
tws_surface_damage,
|
|
tws_surface_frame
|
|
};
|
|
|
|
static void
|
|
tws_surface_free (TWSSurface *surface)
|
|
{
|
|
TWSCompositor *compositor = surface->compositor;
|
|
compositor->surfaces = g_list_remove (compositor->surfaces, surface);
|
|
tws_surface_detach_buffer (surface);
|
|
|
|
clutter_actor_destroy (surface->actor);
|
|
|
|
g_slice_free (TWSSurface, surface);
|
|
}
|
|
|
|
static void
|
|
tws_surface_resource_destroy_cb (struct wl_resource *wayland_surface_resource)
|
|
{
|
|
TWSSurface *surface = wayland_surface_resource->data;
|
|
tws_surface_free (surface);
|
|
}
|
|
|
|
static void
|
|
tws_compositor_create_surface (struct wl_client *wayland_client,
|
|
struct wl_resource *wayland_compositor_resource,
|
|
guint32 id)
|
|
{
|
|
TWSCompositor *compositor = wayland_compositor_resource->data;
|
|
TWSSurface *surface = g_slice_new0 (TWSSurface);
|
|
|
|
surface->compositor = compositor;
|
|
|
|
surface->wayland_surface.resource.destroy =
|
|
tws_surface_resource_destroy_cb;
|
|
surface->wayland_surface.resource.object.id = id;
|
|
surface->wayland_surface.resource.object.interface = &wl_surface_interface;
|
|
surface->wayland_surface.resource.object.implementation =
|
|
(void (**)(void)) &tws_surface_interface;
|
|
surface->wayland_surface.resource.data = surface;
|
|
|
|
wl_client_add_resource (wayland_client, &surface->wayland_surface.resource);
|
|
|
|
compositor->surfaces = g_list_prepend (compositor->surfaces, surface);
|
|
}
|
|
|
|
static void
|
|
bind_output (struct wl_client *client,
|
|
void *data,
|
|
guint32 version,
|
|
guint32 id)
|
|
{
|
|
TWSOutput *output = data;
|
|
struct wl_resource *resource =
|
|
wl_client_add_object (client, &wl_output_interface, NULL, id, data);
|
|
GList *l;
|
|
|
|
wl_resource_post_event (resource,
|
|
WL_OUTPUT_GEOMETRY,
|
|
output->x, output->y,
|
|
output->width_mm,
|
|
output->height_mm,
|
|
0, /* subpixel: unknown */
|
|
"unknown", /* make */
|
|
"unknown"); /* model */
|
|
|
|
for (l = output->modes; l; l = l->next)
|
|
{
|
|
TWSMode *mode = l->data;
|
|
wl_resource_post_event (resource,
|
|
WL_OUTPUT_MODE,
|
|
mode->flags,
|
|
mode->width,
|
|
mode->height,
|
|
mode->refresh);
|
|
}
|
|
}
|
|
|
|
static void
|
|
tws_compositor_create_output (TWSCompositor *compositor,
|
|
int x,
|
|
int y,
|
|
int width_mm,
|
|
int height_mm)
|
|
{
|
|
TWSOutput *output = g_slice_new0 (TWSOutput);
|
|
|
|
output->wayland_output.interface = &wl_output_interface;
|
|
|
|
output->x = x;
|
|
output->y = y;
|
|
output->width_mm = width_mm;
|
|
output->height_mm = height_mm;
|
|
|
|
wl_display_add_global (compositor->wayland_display,
|
|
&wl_output_interface,
|
|
output,
|
|
bind_output);
|
|
|
|
/* XXX: eventually we will support sliced stages and an output should
|
|
* correspond to a slice/CoglFramebuffer, but for now we only support
|
|
* one output so we make sure it always matches the size of the stage
|
|
*/
|
|
clutter_actor_set_size (compositor->stage, width_mm, height_mm);
|
|
|
|
compositor->outputs = g_list_prepend (compositor->outputs, output);
|
|
}
|
|
|
|
const static struct wl_compositor_interface tws_compositor_interface = {
|
|
tws_compositor_create_surface,
|
|
};
|
|
|
|
static void
|
|
paint_finished_cb (ClutterActor *self, void *user_data)
|
|
{
|
|
TWSCompositor *compositor = user_data;
|
|
int i;
|
|
|
|
for (i = 0; i < compositor->frame_callbacks->len; i++)
|
|
{
|
|
TWSFrameCallback *callback =
|
|
g_array_index (compositor->frame_callbacks, TWSFrameCallback *, i);
|
|
|
|
wl_resource_post_event (&callback->resource,
|
|
WL_CALLBACK_DONE, get_time ());
|
|
wl_resource_destroy (&callback->resource, 0);
|
|
}
|
|
g_array_set_size (compositor->frame_callbacks, 0);
|
|
}
|
|
|
|
static void
|
|
compositor_bind (struct wl_client *client,
|
|
void *data,
|
|
guint32 version,
|
|
guint32 id)
|
|
{
|
|
TWSCompositor *compositor = data;
|
|
|
|
wl_client_add_object (client, &wl_compositor_interface,
|
|
&tws_compositor_interface, id, compositor);
|
|
}
|
|
|
|
static void
|
|
shell_move(struct wl_client *client,
|
|
struct wl_resource *resource,
|
|
struct wl_resource *surface_resource,
|
|
struct wl_resource *input_resource,
|
|
guint32 time)
|
|
{
|
|
}
|
|
|
|
static void
|
|
shell_resize (struct wl_client *client,
|
|
struct wl_resource *resource,
|
|
struct wl_resource *surface_resource,
|
|
struct wl_resource *input_resource,
|
|
guint32 time,
|
|
guint32 edges)
|
|
{
|
|
}
|
|
|
|
static void
|
|
shell_set_toplevel (struct wl_client *client,
|
|
struct wl_resource *resource,
|
|
struct wl_resource *surface_resource)
|
|
{
|
|
}
|
|
|
|
static void
|
|
shell_set_transient (struct wl_client *client,
|
|
struct wl_resource *resource,
|
|
struct wl_resource *surface_resource,
|
|
struct wl_resource *parent_resource,
|
|
int x, int y, uint32_t flags)
|
|
{
|
|
}
|
|
|
|
static void
|
|
shell_set_fullscreen (struct wl_client *client,
|
|
struct wl_resource *resource,
|
|
struct wl_resource *surface_resource)
|
|
{
|
|
}
|
|
|
|
static const struct wl_shell_interface tws_shell_interface =
|
|
{
|
|
shell_move,
|
|
shell_resize,
|
|
shell_set_toplevel,
|
|
shell_set_transient,
|
|
shell_set_fullscreen
|
|
};
|
|
|
|
static void
|
|
bind_shell (struct wl_client *client,
|
|
void *data,
|
|
guint32 version,
|
|
guint32 id)
|
|
{
|
|
wl_client_add_object (client, &wl_shell_interface,
|
|
&tws_shell_interface, id, data);
|
|
}
|
|
|
|
G_MODULE_EXPORT int
|
|
test_wayland_surface_main (int argc, char **argv)
|
|
{
|
|
TWSCompositor compositor;
|
|
GMainLoop *loop;
|
|
|
|
memset (&compositor, 0, sizeof (compositor));
|
|
|
|
compositor.wayland_display = wl_display_create ();
|
|
if (compositor.wayland_display == NULL)
|
|
g_error ("failed to create wayland display");
|
|
|
|
compositor.frame_callbacks = g_array_new (FALSE, FALSE, sizeof (void *));
|
|
|
|
if (!wl_display_add_global (compositor.wayland_display,
|
|
&wl_compositor_interface,
|
|
&compositor,
|
|
compositor_bind))
|
|
g_error ("Failed to register wayland compositor object");
|
|
|
|
compositor.wayland_shm = wl_shm_init (compositor.wayland_display,
|
|
&shm_callbacks);
|
|
if (!compositor.wayland_shm)
|
|
g_error ("Failed to allocate setup wayland shm callbacks");
|
|
|
|
loop = g_main_loop_new (NULL, FALSE);
|
|
compositor.wayland_loop =
|
|
wl_display_get_event_loop (compositor.wayland_display);
|
|
compositor.wayland_event_source =
|
|
wayland_event_source_new (compositor.wayland_loop);
|
|
g_source_attach (compositor.wayland_event_source, NULL);
|
|
|
|
clutter_wayland_set_compositor_display (compositor.wayland_display);
|
|
|
|
if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
|
|
return 1;
|
|
|
|
compositor.stage = clutter_stage_get_default ();
|
|
clutter_stage_set_user_resizable (CLUTTER_STAGE (compositor.stage), FALSE);
|
|
g_signal_connect_after (compositor.stage, "paint",
|
|
G_CALLBACK (paint_finished_cb), &compositor);
|
|
|
|
tws_compositor_create_output (&compositor, 0, 0, 800, 600);
|
|
|
|
if (wl_display_add_global (compositor.wayland_display, &wl_shell_interface,
|
|
&compositor, bind_shell) == NULL)
|
|
g_error ("Failed to register a global shell object");
|
|
|
|
clutter_actor_show (compositor.stage);
|
|
|
|
if (wl_display_add_socket (compositor.wayland_display, "wayland-0"))
|
|
g_error ("Failed to create socket");
|
|
|
|
g_main_loop_run (loop);
|
|
|
|
return 0;
|
|
}
|