mirror of https://github.com/GNOME/gimp.git
63 lines
2.8 KiB
C
63 lines
2.8 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __TILE_PYRAMID_H__
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#define __TILE_PYRAMID_H__
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/* Creates a new tile pyramid with the specified size for the
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* toplevel. The toplevel size is used to compute the number of
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* levels and their size. Each level is 1/2 the width and height of
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* the level above it.
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*
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* The toplevel is level 0. The smallest level in the hierarchy
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* is "nlevels - 1". That level will be smaller than TILE_WIDTH x
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* TILE_HEIGHT
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*/
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TilePyramid * tile_pyramid_new (GimpImageType type,
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gint width,
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gint height);
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void tile_pyramid_destroy (TilePyramid *pyramid);
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gint tile_pyramid_get_level (gint width,
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gint height,
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gdouble scale);
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TileManager * tile_pyramid_get_tiles (TilePyramid *pyramid,
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gint level,
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gboolean *is_premult);
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void tile_pyramid_invalidate_area (TilePyramid *pyramid,
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gint x,
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gint y,
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gint width,
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gint height);
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void tile_pyramid_set_validate_proc (TilePyramid *pyramid,
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TileValidateProc proc,
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gpointer user_data);
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gint tile_pyramid_get_width (const TilePyramid *pyramid);
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gint tile_pyramid_get_height (const TilePyramid *pyramid);
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gint tile_pyramid_get_bpp (const TilePyramid *pyramid);
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gint64 tile_pyramid_get_memsize (const TilePyramid *pyramid);
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#endif /* __TILE_PYRAMID_H__ */
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