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clutter/cogl/stage: Rename have_clip to is_full_redraw

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The 'have_clip' variable has repeatedly confused me to meaning that
there is a clip. What it actually means is that the effective clip
covers the whole view; the 'redraw_clip == NULL' meaning full redraw is
an important implementation detail for the context, and makes the
intention of the variable unclear; especially since we will after a
couple of blocks will *always* have a clip, just that it covers the
whole view.

Rename the variable to 'is_full_redraw' and negate the meaning, aiming
to make things a lot more clear.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/1042
This commit is contained in:
Jonas Ådahl 2020-02-06 08:31:04 +01:00
parent 0d039c3ba3
commit 86ccc28413
1 changed files with 4 additions and 4 deletions
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8
clutter/clutter/cogl/clutter-stage-cogl.c
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@ -685,7 +685,7 @@ clutter_stage_cogl_redraw_view (ClutterStageWindow *stage_window,
clutter_stage_view_cogl_get_instance_private (view_cogl);
CoglFramebuffer *fb = clutter_stage_view_get_framebuffer (view);
cairo_rectangle_int_t view_rect;
gboolean have_clip;
gboolean is_full_redraw;
gboolean may_use_clipped_redraw;
gboolean use_clipped_redraw;
gboolean can_blit_sub_buffer;
@ -717,7 +717,7 @@ clutter_stage_cogl_redraw_view (ClutterStageWindow *stage_window,
/* NB: a NULL redraw clip == full stage redraw */
if (!stage_cogl->redraw_clip)
have_clip = FALSE;
is_full_redraw = TRUE;
else
{
cairo_region_t *view_region;
@ -726,14 +726,14 @@ clutter_stage_cogl_redraw_view (ClutterStageWindow *stage_window,
view_region = cairo_region_create_rectangle (&view_rect);
cairo_region_intersect (redraw_clip, view_region);
have_clip = !cairo_region_equal (redraw_clip, view_region);
is_full_redraw = cairo_region_equal (redraw_clip, view_region);
cairo_region_destroy (view_region);
}
may_use_clipped_redraw = FALSE;
if (_clutter_stage_window_can_clip_redraws (stage_window) &&
(can_blit_sub_buffer || has_buffer_age) &&
have_clip &&
!is_full_redraw &&
/* some drivers struggle to get going and produce some junk
* frames when starting up... */
cogl_onscreen_get_frame_counter (COGL_ONSCREEN (fb)) > 3)