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a11fd46183
2003-04-04 Sven Neumann <sven@gimp.org> Applied a patch from Øyvind Kolås that adds supersampling to the transform operations (bug #109817): * app/base/tile-manager-private.h * app/base/tile-manager.[ch]: cache the last accessed tile and use it to optimize read_pixel_data_1(). * app/core/gimpdrawable-transform-utils.c * app/core/gimpdrawable-transform.c: changed the resampling behavior when scaling down.
59 lines
2.1 KiB
C
59 lines
2.1 KiB
C
/* The GIMP -- an 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_MANAGER_PVT_H__
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#define __TILE_MANAGER_PVT_H__
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struct _TileManager
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{
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gint x, y; /* tile manager offsets */
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gint width; /* the width of the tiled area */
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gint height; /* the height of the tiled area */
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gint bpp; /* the bpp of each tile */
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gint ntile_rows; /* the number of tiles in each row */
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gint ntile_cols; /* the number of tiles in each columns */
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Tile **tiles; /* the tiles for this level */
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TileValidateProc validate_proc; /* this proc is called when an attempt
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* to get an invalid tile is made.
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*/
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gint cached_num; /* number of cached tile */
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Tile *cached_tile; /* the actual cached tile */
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gpointer user_data; /* hook for hanging data off of */
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};
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typedef struct _PixelDataHandlePrivate PixelDataHandlePrivate;
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struct _PixelDataHandlePrivate
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{
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PixelDataHandle public;
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TileManager *tm;
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gint x1, x2, y1, y2;
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gboolean readable;
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gboolean writeable;
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gboolean local_buffer;
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Tile *tile;
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};
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#endif /* __TILE_MANAGER_PVT_H__ */
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