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/* Eye of Mate image viewer - Microtile array utilities
*
* Copyright (C) 2000-2009 The Free Software Foundation
*
* Author: Federico Mena-Quintero <federico@gnu.org>
*
* Portions based on code from libart_lgpl by Raph Levien.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef UTA_H
#define UTA_H
#define EOM_UTILE_SHIFT 5
#define EOM_UTILE_SIZE (1 << EOM_UTILE_SHIFT)
typedef guint32 EomUtaBbox;
struct _EomIRect {
int x0, y0, x1, y1;
};
struct _EomUta {
int x0;
int y0;
int width;
int height;
EomUtaBbox *utiles;
};
typedef struct _EomIRect EomIRect;
typedef struct _EomUta EomUta;
G_GNUC_INTERNAL
void eom_uta_free (EomUta *uta);
G_GNUC_INTERNAL
void eom_irect_intersect (EomIRect *dest,
const EomIRect *src1, const EomIRect *src2);
G_GNUC_INTERNAL
int eom_irect_empty (const EomIRect *src);
G_GNUC_INTERNAL
EomUta *uta_ensure_size (EomUta *uta, int x1, int y1, int x2, int y2);
G_GNUC_INTERNAL
EomUta *uta_add_rect (EomUta *uta, int x1, int y1, int x2, int y2);
G_GNUC_INTERNAL
void uta_remove_rect (EomUta *uta, int x1, int y1, int x2, int y2);
G_GNUC_INTERNAL
void uta_find_first_glom_rect (EomUta *uta, EomIRect *rect, int max_width, int max_height);
G_GNUC_INTERNAL
void uta_copy_area (EomUta *uta, int src_x, int src_y, int dest_x, int dest_y, int width, int height);
#endif
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