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6d0e04ae6e
2006-09-07 Sven Neumann <sven@gimp.org> * app/base/pixel-region.[ch] * app/base/tile-manager.[ch] * app/base/tile-swap.[ch]: removed code that tried to swap in tiles asynchronously (but ended up calling up nothing).
167 lines
7.3 KiB
C
167 lines
7.3 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_H__
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#define __TILE_MANAGER_H__
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struct _PixelDataHandle
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{
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guchar *data;
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gint width;
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gint height;
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gint stride;
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gint bpp;
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};
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/* Creates a new tile manager with the specified width 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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TileManager * tile_manager_new (gint width,
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gint height,
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gint bpp);
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/* Ref/Unref a tile manager.
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*/
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TileManager * tile_manager_ref (TileManager *tm);
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void tile_manager_unref (TileManager *tm);
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/* Set the validate procedure for the tile manager. The validate
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* procedure is called when an invalid tile is referenced. If the
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* procedure is NULL, then the tile is set to valid and its memory is
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* allocated, but not initialized.
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*/
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void tile_manager_set_validate_proc (TileManager *tm,
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TileValidateProc proc);
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/* Get a specified tile from a tile manager.
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*/
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Tile * tile_manager_get_tile (TileManager *tm,
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gint xpixel,
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gint ypixel,
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gint wantread,
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gint wantwrite);
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/* Get a specified tile from a tile manager.
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*/
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Tile * tile_manager_get (TileManager *tm,
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gint tile_num,
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gint wantread,
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gint wantwrite);
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void tile_manager_map_tile (TileManager *tm,
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gint xpixel,
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gint ypixel,
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Tile *srctile);
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void tile_manager_map (TileManager *tm,
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gint tile_num,
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Tile *srctile);
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/* Validate a tiles memory.
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*/
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void tile_manager_validate (TileManager *tm,
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Tile *tile);
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void tile_invalidate (Tile **tile_ptr,
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TileManager *tm,
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gint tile_num);
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void tile_invalidate_tile (Tile **tile_ptr,
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TileManager *tm,
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gint xpixel,
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gint ypixel);
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/* Given a toplevel tile, this procedure will invalidate
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* (set the dirty bit) for this toplevel tile.
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*/
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void tile_manager_invalidate_tiles (TileManager *tm,
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Tile *toplevel_tile);
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void tile_manager_set_user_data (TileManager *tm,
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gpointer user_data);
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gpointer tile_manager_get_user_data (const TileManager *tm);
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gint tile_manager_width (const TileManager *tm);
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gint tile_manager_height (const TileManager *tm);
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gint tile_manager_bpp (const TileManager *tm);
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void tile_manager_get_offsets (const TileManager *tm,
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gint *x,
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gint *y);
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void tile_manager_set_offsets (TileManager *tm,
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gint x,
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gint y);
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gint64 tile_manager_get_memsize (const TileManager *tm,
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gboolean sparse);
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void tile_manager_get_tile_coordinates (TileManager *tm,
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Tile *tile,
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gint *x,
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gint *y);
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void tile_manager_map_over_tile (TileManager *tm,
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Tile *tile,
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Tile *srctile);
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PixelDataHandle * request_pixel_data (TileManager *tm,
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gint x1,
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gint y1,
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gint x2,
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gint y2,
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gboolean wantread,
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gboolean wantwrite);
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void release_pixel_data (PixelDataHandle *pdh);
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void read_pixel_data (TileManager *tm,
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gint x1,
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gint y1,
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gint x2,
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gint y2,
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guchar *buffer,
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guint stride);
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void write_pixel_data (TileManager *tm,
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gint x1,
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gint y1,
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gint x2,
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gint y2,
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const guchar *buffer,
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guint stride);
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/* Fill buffer with the pixeldata for the pixel at coordinates x,y
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* if x,y is outside the area of the tilemanger, nothing is done.
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*/
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void read_pixel_data_1 (TileManager *tm,
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gint x,
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gint y,
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guchar *buffer);
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void write_pixel_data_1 (TileManager *tm,
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gint x,
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gint y,
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const guchar *buffer);
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#endif /* __TILE_MANAGER_H__ */
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