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Use signals instead of onscreen framebuffer frame callbacks

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CoglFrameInfo is a frame info container associated with a single
onscreen framebuffer. The clutter stage will eventually support drawing
a stage frame with multiple onscreen framebuffers, thus needs its own
frame info container.

This patch introduces a new stage signal 'presented' and a accompaning
ClutterFrameInfo and adapts the stage windows and past onscreen frame
callbacks users to use the signal and new info container.

https://bugzilla.gnome.org/show_bug.cgi?id=768976
This commit is contained in:
Jonas Ådahl
2016-06-08 13:07:09 +08:00
parent 92341e7c30
commit 28a898a22f
20 changed files with 166 additions and 154 deletions
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71
src/backends/native/meta-stage-native.c
View File

@@ -36,6 +36,7 @@ struct _MetaStageNative
ClutterStageCogl parent;
CoglOnscreen *pending_onscreen;
CoglClosure *frame_closure;
};
static ClutterStageWindowIface *clutter_stage_window_parent_iface = NULL;
@@ -136,6 +137,16 @@ meta_stage_native_unrealize (ClutterStageWindow *stage_window)
clutter_stage_window_parent_iface->unrealize (stage_window);
if (stage_native->frame_closure)
{
CoglOnscreen *onscreen;
onscreen = get_legacy_onscreen (stage_native);
cogl_onscreen_remove_frame_callback (onscreen,
stage_native->frame_closure);
stage_native->frame_closure = NULL;
}
g_clear_pointer (&stage_native->pending_onscreen, cogl_object_unref);
}
@@ -168,6 +179,23 @@ meta_stage_native_get_geometry (ClutterStageWindow *stage_window,
}
}
static void
frame_cb (CoglOnscreen *onscreen,
CoglFrameEvent frame_event,
CoglFrameInfo *frame_info,
void *user_data)
{
MetaStageNative *stage_native = user_data;
ClutterStageCogl *stage_cogl = CLUTTER_STAGE_COGL (stage_native);
ClutterFrameInfo clutter_frame_info = {
.frame_counter = cogl_frame_info_get_frame_counter (frame_info),
.refresh_rate = cogl_frame_info_get_refresh_rate (frame_info),
.presentation_time = cogl_frame_info_get_presentation_time (frame_info)
};
_clutter_stage_cogl_presented (stage_cogl, frame_event, &clutter_frame_info);
}
static void
ensure_legacy_view (ClutterStageWindow *stage_window)
{
@@ -179,6 +207,7 @@ ensure_legacy_view (ClutterStageWindow *stage_window)
MetaRendererView *legacy_view;
cairo_rectangle_int_t view_layout = { 0 };
CoglFramebuffer *framebuffer;
CoglOnscreen *onscreen;
legacy_view = get_legacy_view (renderer);
if (legacy_view)
@@ -196,6 +225,16 @@ ensure_legacy_view (ClutterStageWindow *stage_window)
"framebuffer", framebuffer,
NULL);
meta_renderer_set_legacy_view (renderer, legacy_view);
onscreen = COGL_ONSCREEN (framebuffer);
cogl_onscreen_set_swap_throttled (onscreen,
_clutter_get_sync_to_vblank ());
stage_native->frame_closure =
cogl_onscreen_add_frame_callback (onscreen,
frame_cb,
stage_native,
NULL);
}
static GList *
@@ -208,36 +247,6 @@ meta_stage_native_get_views (ClutterStageWindow *stage_window)
return meta_renderer_get_views (renderer);
}
static CoglClosure *
meta_stage_native_set_frame_callback (ClutterStageWindow *stage_window,
CoglFrameCallback callback,
gpointer user_data)
{
MetaStageNative *stage_native = META_STAGE_NATIVE (stage_window);
CoglOnscreen *legacy_onscreen;
legacy_onscreen = get_legacy_onscreen (stage_native);
cogl_onscreen_set_swap_throttled (legacy_onscreen,
_clutter_get_sync_to_vblank ());
return cogl_onscreen_add_frame_callback (legacy_onscreen,
callback,
user_data,
NULL);
}
static void
meta_stage_native_remove_frame_callback (ClutterStageWindow *stage_window,
CoglFrameClosure *closure)
{
MetaStageNative *stage_native = META_STAGE_NATIVE (stage_window);
CoglOnscreen *legacy_onscreen;
legacy_onscreen = get_legacy_onscreen (stage_native);
cogl_onscreen_remove_frame_callback (legacy_onscreen, closure);
}
static int64_t
meta_stage_native_get_frame_counter (ClutterStageWindow *stage_window)
{
@@ -269,7 +278,5 @@ clutter_stage_window_iface_init (ClutterStageWindowIface *iface)
iface->can_clip_redraws = meta_stage_native_can_clip_redraws;
iface->get_geometry = meta_stage_native_get_geometry;
iface->get_views = meta_stage_native_get_views;
iface->set_frame_callback = meta_stage_native_set_frame_callback;
iface->remove_frame_callback = meta_stage_native_remove_frame_callback;
iface->get_frame_counter = meta_stage_native_get_frame_counter;
}