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wayland-outputs: Refactor event sending to ensure we're consistent

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This makes us behave the same both on bind and when an output
changes. In particular, we were not sending scale and done events on
output changes. We were also unconditionally sending mode events on
output changes even though these should only be sent if there is an
actual mode change.

https://bugzilla.gnome.org/show_bug.cgi?id=766528
This commit is contained in:
Rui Matos 2016-05-16 20:28:14 +02:00
parent dc257ee1c1
commit 16e2953c6f
2 changed files with 96 additions and 70 deletions
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161
src/wayland/meta-wayland-outputs.c
View File

@ -53,6 +53,80 @@ output_resource_destroy (struct wl_resource *res)
wayland_output->resources = g_list_remove (wayland_output->resources, res);
}
static inline enum wl_output_transform
wl_output_transform_from_meta_monitor_transform (MetaMonitorTransform transform)
{
/* The enums are the same. */
return (enum wl_output_transform) transform;
}
static void
send_output_events (struct wl_resource *resource,
MetaWaylandOutput *wayland_output,
MetaMonitorInfo *monitor_info,
gboolean need_all_events)
{
int version = wl_resource_get_version (resource);
MetaOutput *output = monitor_info->outputs[0];
enum wl_output_transform transform = wl_output_transform_from_meta_monitor_transform (output->crtc->transform);
guint mode_flags = WL_OUTPUT_MODE_CURRENT;
MetaMonitorInfo *old_monitor_info = wayland_output->monitor_info;
enum wl_output_transform old_transform = wayland_output->transform;
guint old_mode_flags = wayland_output->mode_flags;
gint old_scale = wayland_output->scale;
gboolean need_done = FALSE;
if (need_all_events ||
old_monitor_info->rect.x != monitor_info->rect.x ||
old_monitor_info->rect.y != monitor_info->rect.y ||
old_transform != transform)
{
wl_output_send_geometry (resource,
(int)monitor_info->rect.x,
(int)monitor_info->rect.y,
monitor_info->width_mm,
monitor_info->height_mm,
output->subpixel_order,
output->vendor,
output->product,
transform);
need_done = TRUE;
}
if (output->crtc->current_mode == output->preferred_mode)
mode_flags |= WL_OUTPUT_MODE_PREFERRED;
if (need_all_events ||
old_monitor_info->rect.width != monitor_info->rect.width ||
old_monitor_info->rect.height != monitor_info->rect.height ||
old_monitor_info->refresh_rate != monitor_info->refresh_rate ||
old_mode_flags != mode_flags)
{
wl_output_send_mode (resource,
mode_flags,
(int)monitor_info->rect.width,
(int)monitor_info->rect.height,
(int)(monitor_info->refresh_rate * 1000));
need_done = TRUE;
}
if (version >= WL_OUTPUT_SCALE_SINCE_VERSION)
{
if (need_all_events ||
old_scale != output->scale)
{
wl_output_send_scale (resource, output->scale);
need_done = TRUE;
}
if (need_done)
wl_output_send_done (resource);
}
}
static void
bind_output (struct wl_client *client,
void *data,
@ -62,7 +136,6 @@ bind_output (struct wl_client *client,
MetaWaylandOutput *wayland_output = data;
MetaMonitorInfo *monitor_info = wayland_output->monitor_info;
struct wl_resource *resource;
guint mode_flags;
MetaOutput *output = monitor_info->outputs[0];
resource = wl_resource_create (client, &wl_output_interface, version, id);
@ -77,35 +150,7 @@ bind_output (struct wl_client *client,
monitor_info->rect.width, monitor_info->rect.height,
monitor_info->refresh_rate);
wl_output_send_geometry (resource,
(int)monitor_info->rect.x,
(int)monitor_info->rect.y,
monitor_info->width_mm,
monitor_info->height_mm,
/* Cogl values reflect XRandR values,
and so does wayland */
output->subpixel_order,
output->vendor,
output->product,
output->crtc->transform);
g_assert (output->crtc->current_mode != NULL);
mode_flags = WL_OUTPUT_MODE_CURRENT;
if (output->crtc->current_mode == output->preferred_mode)
mode_flags |= WL_OUTPUT_MODE_PREFERRED;
wl_output_send_mode (resource,
mode_flags,
(int)monitor_info->rect.width,
(int)monitor_info->rect.height,
(int)(monitor_info->refresh_rate * 1000));
if (version >= WL_OUTPUT_SCALE_SINCE_VERSION)
wl_output_send_scale (resource, output->scale);
if (version >= WL_OUTPUT_DONE_SINCE_VERSION)
wl_output_send_done (resource);
send_output_events (resource, wayland_output, monitor_info, TRUE);
}
static void
@ -117,11 +162,19 @@ wayland_output_destroy_notify (gpointer data)
g_object_unref (wayland_output);
}
static inline enum wl_output_transform
wl_output_transform_from_meta_monitor_transform (MetaMonitorTransform transform)
static void
wayland_output_set_monitor_info (MetaWaylandOutput *wayland_output,
MetaMonitorInfo *monitor_info)
{
/* The enums are the same. */
return (enum wl_output_transform) transform;
MetaOutput *output = monitor_info->outputs[0];
enum wl_output_transform transform = wl_output_transform_from_meta_monitor_transform (output->crtc->transform);
wayland_output->monitor_info = monitor_info;
wayland_output->transform = transform;
wayland_output->mode_flags = WL_OUTPUT_MODE_CURRENT;
if (output->crtc->current_mode == output->preferred_mode)
wayland_output->mode_flags |= WL_OUTPUT_MODE_PREFERRED;
wayland_output->scale = output->scale;
}
static void
@ -129,50 +182,21 @@ wayland_output_update_for_output (MetaWaylandOutput *wayland_output,
MetaMonitorInfo *monitor_info)
{
GList *iter;
guint mode_flags;
MetaOutput *output = monitor_info->outputs[0];
enum wl_output_transform wl_transform = wl_output_transform_from_meta_monitor_transform (output->crtc->transform);
mode_flags = WL_OUTPUT_MODE_CURRENT;
if (output->crtc->current_mode == output->preferred_mode)
mode_flags |= WL_OUTPUT_MODE_PREFERRED;
for (iter = wayland_output->resources; iter; iter = iter->next)
{
struct wl_resource *resource = iter->data;
if (wayland_output->x != monitor_info->rect.x ||
wayland_output->y != monitor_info->rect.y ||
wayland_output->transform != wl_transform)
{
wl_output_send_geometry (resource,
(int)monitor_info->rect.x,
(int)monitor_info->rect.y,
monitor_info->width_mm,
monitor_info->height_mm,
output->subpixel_order,
output->vendor,
output->product,
wl_transform);
}
wl_output_send_mode (resource,
mode_flags,
(int)monitor_info->rect.width,
(int)monitor_info->rect.height,
(int)(monitor_info->refresh_rate * 1000));
send_output_events (resource, wayland_output, monitor_info, FALSE);
}
/* It's very important that we change the output pointer here, as
the old structure is about to be freed by MetaMonitorManager */
wayland_output->monitor_info = monitor_info;
wayland_output->x = monitor_info->rect.x;
wayland_output->y = monitor_info->rect.y;
wayland_output->transform = wl_transform;
wayland_output_set_monitor_info (wayland_output, monitor_info);
}
static MetaWaylandOutput *
meta_wayland_output_new (MetaWaylandCompositor *compositor)
meta_wayland_output_new (MetaWaylandCompositor *compositor,
MetaMonitorInfo *monitor_info)
{
MetaWaylandOutput *wayland_output;
@ -181,6 +205,7 @@ meta_wayland_output_new (MetaWaylandCompositor *compositor)
&wl_output_interface,
META_WL_OUTPUT_VERSION,
wayland_output, bind_output);
wayland_output_set_monitor_info (wayland_output, monitor_info);
return wayland_output;
}
@ -211,7 +236,7 @@ meta_wayland_compositor_update_outputs (MetaWaylandCompositor *compositor,
g_hash_table_steal (compositor->outputs, GSIZE_TO_POINTER (info->winsys_id));
}
else
wayland_output = meta_wayland_output_new (compositor);
wayland_output = meta_wayland_output_new (compositor, info);
wayland_output_update_for_output (wayland_output, info);
g_hash_table_insert (new_table, GSIZE_TO_POINTER (info->winsys_id), wayland_output);

5
src/wayland/meta-wayland-outputs.h
View File

@ -41,10 +41,11 @@ struct _MetaWaylandOutput
{
GObject parent;
MetaMonitorInfo *monitor_info;
struct wl_global *global;
int x, y;
MetaMonitorInfo *monitor_info;
enum wl_output_transform transform;
guint mode_flags;
gint scale;
GList *resources;
};