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911893e0f9
2001-01-24 Sven Neumann <sven@gimp.org> * app/paint_funcs.c: brought the array used for optimization back in sync with the LayerModeEffects enum. This was causing really strange rendering errors. Started to clean up the file up and removed the unused layer_mode names. * app/tile.[ch] * plug-ins/common/colortoalpha.c: small cleanups * po/POTFILES.in: removed app/paint_funcs.c
111 lines
3.6 KiB
C
111 lines
3.6 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_H__
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#define __TILE_H__
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#define TILE_WIDTH 64
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#define TILE_HEIGHT 64
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/* Uncomment for verbose debugging on copy-on-write logic
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#define TILE_DEBUG
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*/
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/* sanity checking on new tile hinting code */
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/* #define HINTS_SANITY */
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/* explicit guchar type rather than enum since gcc chooses an int
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* representation but arrays of TileRowHints are quite space-critical
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* in GIMP.
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*/
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typedef guchar TileRowHint;
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#define TILEROWHINT_BROKEN 0
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#define TILEROWHINT_OPAQUE 1
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#define TILEROWHINT_TRANSPARENT 2
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#define TILEROWHINT_MIXED 3
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#define TILEROWHINT_OUTOFRANGE 4
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#define TILEROWHINT_UNDEFINED 5
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#define TILEROWHINT_UNKNOWN 6
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/* Initializes the fields of a tile to "good" values.
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*/
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void tile_init (Tile *tile,
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gint bpp);
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/*
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* tile_lock locks a tile into memory. This does what tile_ref used
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* to do. It is the responsibility of the tile manager to take care
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* of the copy-on-write semantics. Locks stack; a tile remains locked
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* in memory as long as it's been locked more times than it has been
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* released. tile_release needs to know whether the release was for
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* write access. (This is a hack, and should be handled better.)
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*/
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void tile_lock (Tile *tile);
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void tile_release (Tile *tile,
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gboolean dirty);
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/* Allocate the data for the tile.
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*/
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void tile_alloc (Tile *tile);
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/* Return the size in bytes of the tiles data.
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*/
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gint tile_size (Tile *tile);
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gint tile_ewidth (Tile *tile);
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gint tile_eheight (Tile *tile);
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gint tile_bpp (Tile *tile);
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gint tile_is_valid (Tile *tile);
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void tile_mark_valid (Tile *tile);
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/* DOCUMENT ME -- adm */
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TileRowHint tile_get_rowhint (Tile *tile,
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gint yoff);
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void tile_set_rowhint (Tile *tile,
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gint yoff,
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TileRowHint rowhint);
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void tile_sanitize_rowhints (Tile *tile);
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void * tile_data_pointer (Tile *tile,
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gint xoff,
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gint yoff);
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/* tile_attach attaches a tile to a tile manager: this function
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* increments the tile's share count and inserts a tilelink into the
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* tile's link list. tile_detach reverses the process.
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* If a tile's share count is zero after a tile_detach, the tile is
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* discarded.
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*/
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void tile_attach (Tile *tile,
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void *tm,
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gint tile_num);
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void tile_detach (Tile *tile,
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void *tm,
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gint tile_num);
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#endif /* __TILE_H__ */
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