mirror of
https://github.com/brl/mutter.git
synced 2024-11-27 18:40:40 -05:00
14c706e51b
Currently, Clutter does picking by drawing with Cogl and reading the pixel that's beneath the given point. Since Cogl has a journal that records drawing operations, and has optimizations to read a single pixel from a list of rectangle, it would be expected that we would hit this fast path and not flush the journal while picking. However, that's not the case: dithering, clipping with scissors, etc, can all flush the journal, issuing commands to the GPU and making picking slow. On NVidia-based systems, this glReadPixels() call is extremely costly. Introduce geometric picking, and avoid using the Cogl journal entirely. Do this by introducing a stack of actors in ClutterStage. This stack is cached, but for now, don't use the cache as much as possible. The picking routines are still tied to painting. When projecting the actor vertexes, do it manually and take the modelview matrix of the framebuffer into account as well. CPU usage on an Intel i7-7700, tested with two different GPUs/drivers: | | Intel | Nvidia | | ------: | --------: | -----: | | Moving the mouse: | | Before | 10% | 10% | | After | 6% | 6% | | Moving a window: | | Before | 23% | 81% | | After | 19% | 40% | Closes: https://gitlab.gnome.org/GNOME/mutter/issues/154, https://gitlab.gnome.org/GNOME/mutter/issues/691 Helps significantly with: https://gitlab.gnome.org/GNOME/mutter/issues/283, https://gitlab.gnome.org/GNOME/mutter/issues/590, https://gitlab.gnome.org/GNOME/mutter/issues/700 v2: Fix code style issues Simplify quadrilateral checks Remove the 0.5f hack Differentiate axis-aligned rectangles https://gitlab.gnome.org/GNOME/mutter/merge_requests/189
122 lines
6.2 KiB
C
122 lines
6.2 KiB
C
#ifndef __CLUTTER_STAGE_WINDOW_H__
|
|
#define __CLUTTER_STAGE_WINDOW_H__
|
|
|
|
#include <cogl/cogl.h>
|
|
#include <clutter/clutter-types.h>
|
|
#include "clutter/clutter-stage-view.h"
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#define CLUTTER_TYPE_STAGE_WINDOW (clutter_stage_window_get_type ())
|
|
|
|
CLUTTER_EXPORT
|
|
G_DECLARE_INTERFACE (ClutterStageWindow, clutter_stage_window,
|
|
CLUTTER, STAGE_WINDOW,
|
|
GObject)
|
|
|
|
/*
|
|
* ClutterStageWindowInterface: (skip)
|
|
*
|
|
* The interface implemented by backends for stage windows
|
|
*
|
|
* Since: 0.8
|
|
*/
|
|
struct _ClutterStageWindowInterface
|
|
{
|
|
/*< private >*/
|
|
GTypeInterface parent_iface;
|
|
|
|
ClutterActor *(* get_wrapper) (ClutterStageWindow *stage_window);
|
|
|
|
void (* set_title) (ClutterStageWindow *stage_window,
|
|
const gchar *title);
|
|
void (* set_cursor_visible) (ClutterStageWindow *stage_window,
|
|
gboolean cursor_visible);
|
|
|
|
gboolean (* realize) (ClutterStageWindow *stage_window);
|
|
void (* unrealize) (ClutterStageWindow *stage_window);
|
|
|
|
void (* show) (ClutterStageWindow *stage_window,
|
|
gboolean do_raise);
|
|
void (* hide) (ClutterStageWindow *stage_window);
|
|
|
|
void (* resize) (ClutterStageWindow *stage_window,
|
|
gint width,
|
|
gint height);
|
|
void (* get_geometry) (ClutterStageWindow *stage_window,
|
|
cairo_rectangle_int_t *geometry);
|
|
|
|
void (* schedule_update) (ClutterStageWindow *stage_window,
|
|
int sync_delay);
|
|
gint64 (* get_update_time) (ClutterStageWindow *stage_window);
|
|
void (* clear_update_time) (ClutterStageWindow *stage_window);
|
|
|
|
void (* add_redraw_clip) (ClutterStageWindow *stage_window,
|
|
cairo_rectangle_int_t *stage_rectangle);
|
|
gboolean (* has_redraw_clips) (ClutterStageWindow *stage_window);
|
|
gboolean (* ignoring_redraw_clips) (ClutterStageWindow *stage_window);
|
|
gboolean (* get_redraw_clip_bounds) (ClutterStageWindow *stage_window,
|
|
cairo_rectangle_int_t *clip);
|
|
|
|
|
|
void (* set_accept_focus) (ClutterStageWindow *stage_window,
|
|
gboolean accept_focus);
|
|
|
|
void (* redraw) (ClutterStageWindow *stage_window);
|
|
|
|
gboolean (* can_clip_redraws) (ClutterStageWindow *stage_window);
|
|
|
|
GList *(* get_views) (ClutterStageWindow *stage_window);
|
|
int64_t (* get_frame_counter) (ClutterStageWindow *stage_window);
|
|
void (* finish_frame) (ClutterStageWindow *stage_window);
|
|
};
|
|
|
|
ClutterActor * _clutter_stage_window_get_wrapper (ClutterStageWindow *window);
|
|
|
|
void _clutter_stage_window_set_title (ClutterStageWindow *window,
|
|
const gchar *title);
|
|
void _clutter_stage_window_set_cursor_visible (ClutterStageWindow *window,
|
|
gboolean is_visible);
|
|
|
|
gboolean _clutter_stage_window_realize (ClutterStageWindow *window);
|
|
void _clutter_stage_window_unrealize (ClutterStageWindow *window);
|
|
|
|
void _clutter_stage_window_show (ClutterStageWindow *window,
|
|
gboolean do_raise);
|
|
void _clutter_stage_window_hide (ClutterStageWindow *window);
|
|
|
|
void _clutter_stage_window_resize (ClutterStageWindow *window,
|
|
gint width,
|
|
gint height);
|
|
CLUTTER_EXPORT
|
|
void _clutter_stage_window_get_geometry (ClutterStageWindow *window,
|
|
cairo_rectangle_int_t *geometry);
|
|
void _clutter_stage_window_schedule_update (ClutterStageWindow *window,
|
|
int sync_delay);
|
|
gint64 _clutter_stage_window_get_update_time (ClutterStageWindow *window);
|
|
void _clutter_stage_window_clear_update_time (ClutterStageWindow *window);
|
|
|
|
void _clutter_stage_window_add_redraw_clip (ClutterStageWindow *window,
|
|
cairo_rectangle_int_t *stage_clip);
|
|
gboolean _clutter_stage_window_has_redraw_clips (ClutterStageWindow *window);
|
|
gboolean _clutter_stage_window_ignoring_redraw_clips (ClutterStageWindow *window);
|
|
gboolean _clutter_stage_window_get_redraw_clip_bounds (ClutterStageWindow *window,
|
|
cairo_rectangle_int_t *clip);
|
|
|
|
void _clutter_stage_window_set_accept_focus (ClutterStageWindow *window,
|
|
gboolean accept_focus);
|
|
|
|
void _clutter_stage_window_redraw (ClutterStageWindow *window);
|
|
|
|
gboolean _clutter_stage_window_can_clip_redraws (ClutterStageWindow *window);
|
|
|
|
GList * _clutter_stage_window_get_views (ClutterStageWindow *window);
|
|
|
|
void _clutter_stage_window_finish_frame (ClutterStageWindow *window);
|
|
|
|
int64_t _clutter_stage_window_get_frame_counter (ClutterStageWindow *window);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __CLUTTER_STAGE_WINDOW_H__ */
|