f5dac3a5d9
Group all the three config files from clutter/cogl/meta into one and also remove unnused configurations and replace duplicated ones This also fixes Cogl usage of HAS_X11/HAS_XLIB to match the expected build options Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3368>
92 lines
2.3 KiB
C
92 lines
2.3 KiB
C
/*
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* Copyright (C) 2007,2008,2009,2010,2011 Intel Corporation.
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* Copyright (C) 2020 Red Hat Inc
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include "clutter/clutter-damage-history.h"
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#define DAMAGE_HISTORY_LENGTH 0x10
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struct _ClutterDamageHistory
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{
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MtkRegion *damages[DAMAGE_HISTORY_LENGTH];
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int index;
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};
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ClutterDamageHistory *
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clutter_damage_history_new (void)
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{
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ClutterDamageHistory *history;
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history = g_new0 (ClutterDamageHistory, 1);
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return history;
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}
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void
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clutter_damage_history_free (ClutterDamageHistory *history)
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{
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int i;
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for (i = 0; i < G_N_ELEMENTS (history->damages); i++)
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g_clear_pointer (&history->damages[i], mtk_region_unref);
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g_free (history);
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}
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gboolean
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clutter_damage_history_is_age_valid (ClutterDamageHistory *history,
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int age)
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{
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if (age >= DAMAGE_HISTORY_LENGTH ||
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age < 1)
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return FALSE;
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if (!clutter_damage_history_lookup (history, age))
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return FALSE;
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return TRUE;
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}
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void
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clutter_damage_history_record (ClutterDamageHistory *history,
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const MtkRegion *damage)
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{
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g_clear_pointer (&history->damages[history->index], mtk_region_unref);
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history->damages[history->index] = mtk_region_copy (damage);
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}
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static inline int
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step_damage_index (int current,
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int diff)
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{
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return (current + diff) & (DAMAGE_HISTORY_LENGTH - 1);
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}
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void
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clutter_damage_history_step (ClutterDamageHistory *history)
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{
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history->index = step_damage_index (history->index, 1);
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}
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const MtkRegion *
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clutter_damage_history_lookup (ClutterDamageHistory *history,
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int age)
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{
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return history->damages[step_damage_index (history->index, -age)];
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}
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