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clutter/cogl/stage: Don't leak FB damage region on redraw
offset_scale_and_clamp_region() creates a new region resulting in view_damage which at this point is the only thing left pointing to what originally was fb_damage getting overwritten and being leaked. https://gitlab.gnome.org/GNOME/mutter/merge_requests/1089
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@ -743,8 +743,7 @@ clutter_stage_cogl_redraw_view (ClutterStageWindow *stage_window,
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/* Update the fb clip region with the extra damage. */
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cairo_region_union (fb_clip_region, fb_damage);
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view_damage = g_steal_pointer (&fb_damage);
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view_damage = offset_scale_and_clamp_region (view_damage,
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view_damage = offset_scale_and_clamp_region (fb_damage,
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0, 0,
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1.0f / fb_scale);
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cairo_region_translate (view_damage, view_rect.x, view_rect.y);
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@ -755,6 +754,7 @@ clutter_stage_cogl_redraw_view (ClutterStageWindow *stage_window,
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cairo_region_union (redraw_clip, view_damage);
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cairo_region_destroy (view_damage);
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cairo_region_destroy (fb_damage);
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CLUTTER_NOTE (CLIPPING, "Reusing back buffer(age=%d) - repairing region: num rects: %d\n",
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age,
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