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clutter/stage-cogl: Fix painting the redraw clip with the damage region

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The redraw clip that's painted together with the damage region has to be
copied earlier than we do right now. That's because if
PAINT_DAMAGE_REGION is enabled, buffer age is disabled and thus
use_clipped_redraw is FALSE. That means the redraw_clip is updated and
set to the full view-rect. If we copy the queued_redraw_clip after that,
it's also going to be set to the full view-rect. So copy the redraw clip
a bit earlier to make sure we're actually passing the real redraw clip
to paint_damage_region().

Also keep the queued_redraw_clip around a bit longer so it can actually
be used by paint_damage_region() and isn't freed before that.

While at it, move paint_damage_region() from swap_framebuffer() into
clutter_stage_cogl_redraw_view() so we don't have to pass things to
swap_framebuffer() only for debugging.

Fixes https://gitlab.gnome.org/GNOME/mutter/-/issues/1104

https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1208
This commit is contained in:
Jonas Dreßler 2020-03-06 11:33:30 +01:00
parent 43295bdcc4
commit 793a9d45e1
1 changed files with 13 additions and 11 deletions
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24
clutter/clutter/cogl/clutter-stage-cogl.c
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@ -375,15 +375,11 @@ static gboolean
swap_framebuffer (ClutterStageWindow *stage_window,
ClutterStageView *view,
cairo_region_t *swap_region,
gboolean swap_with_damage,
cairo_region_t *queued_redraw_clip)
gboolean swap_with_damage)
{
CoglFramebuffer *framebuffer = clutter_stage_view_get_onscreen (view);
int *damage, n_rects, i;
if (G_UNLIKELY ((clutter_paint_debug_flags & CLUTTER_DEBUG_PAINT_DAMAGE_REGION)))
paint_damage_region (stage_window, view, swap_region, queued_redraw_clip);
n_rects = cairo_region_num_rectangles (swap_region);
damage = g_newa (int, n_rects * 4);
for (i = 0; i < n_rects; i++)
@ -620,7 +616,7 @@ clutter_stage_cogl_redraw_view (ClutterStageWindow *stage_window,
gboolean swap_with_damage;
ClutterActor *wrapper;
cairo_region_t *redraw_clip;
cairo_region_t *queued_redraw_clip;
cairo_region_t *queued_redraw_clip = NULL;
cairo_region_t *fb_clip_region;
cairo_region_t *swap_region;
cairo_rectangle_int_t redraw_rect;
@ -644,6 +640,8 @@ clutter_stage_cogl_redraw_view (ClutterStageWindow *stage_window,
has_buffer_age = cogl_is_onscreen (fb) && is_buffer_age_enabled ();
redraw_clip = clutter_stage_view_take_redraw_clip (view);
if (G_UNLIKELY (clutter_paint_debug_flags & CLUTTER_DEBUG_PAINT_DAMAGE_REGION))
queued_redraw_clip = cairo_region_copy (redraw_clip);
/* NB: a NULL redraw clip == full stage redraw */
if (!redraw_clip)
@ -711,8 +709,6 @@ clutter_stage_cogl_redraw_view (ClutterStageWindow *stage_window,
redraw_clip = cairo_region_create_rectangle (&view_rect);
}
queued_redraw_clip = cairo_region_copy (redraw_clip);
if (may_use_clipped_redraw &&
G_LIKELY (!(clutter_paint_debug_flags & CLUTTER_DEBUG_DISABLE_CLIPPED_REDRAWS)))
use_clipped_redraw = TRUE;
@ -922,7 +918,6 @@ clutter_stage_cogl_redraw_view (ClutterStageWindow *stage_window,
}
g_clear_pointer (&redraw_clip, cairo_region_destroy);
g_clear_pointer (&queued_redraw_clip, cairo_region_destroy);
g_clear_pointer (&fb_clip_region, cairo_region_destroy);
if (do_swap_buffer)
@ -943,11 +938,17 @@ clutter_stage_cogl_redraw_view (ClutterStageWindow *stage_window,
swap_region = transformed_swap_region;
}
if (queued_redraw_clip)
{
paint_damage_region (stage_window, view,
swap_region, queued_redraw_clip);
cairo_region_destroy (queued_redraw_clip);
}
res = swap_framebuffer (stage_window,
view,
swap_region,
swap_with_damage,
queued_redraw_clip);
swap_with_damage);
cairo_region_destroy (swap_region);
@ -955,6 +956,7 @@ clutter_stage_cogl_redraw_view (ClutterStageWindow *stage_window,
}
else
{
g_clear_pointer (&queued_redraw_clip, cairo_region_destroy);
return FALSE;
}
}