gimp/app/base/temp-buf.h

98 lines
3.8 KiB
C

/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef __TEMP_BUF_H__
#define __TEMP_BUF_H__
struct _TempBuf
{
gint bytes; /* the necessary info */
gint width;
gint height;
gint x, y; /* origin of data source */
gboolean swapped; /* flag indicating whether buf is cached to disk */
gchar *filename; /* filename of cached information */
guchar *data; /* The data buffer. Do never access this field
directly, use temp_buf_data() instead !! */
};
/* The temp buffer functions */
TempBuf * temp_buf_new (gint width,
gint height,
gint bytes,
gint x,
gint y,
guchar *col);
TempBuf * temp_buf_new_check (gint width,
gint height,
GimpCheckType check_type,
GimpCheckSize check_size);
TempBuf * temp_buf_copy (TempBuf *src,
TempBuf *dest);
TempBuf * temp_buf_resize (TempBuf *buf,
gint bytes,
gint x,
gint y,
gint width,
gint height);
TempBuf * temp_buf_scale (TempBuf *buf,
gint width,
gint height);
TempBuf * temp_buf_copy_area (TempBuf *src,
TempBuf *dest,
gint x,
gint y,
gint width,
gint height,
gint dest_x,
gint dest_y);
void temp_buf_free (TempBuf *buf);
guchar * temp_buf_data (TempBuf *buf);
guchar * temp_buf_data_clear (TempBuf *buf);
gsize temp_buf_get_memsize (TempBuf *buf);
/* The mask buffer functions */
MaskBuf * mask_buf_new (gint width,
gint height);
void mask_buf_free (MaskBuf *mask_buf);
guchar * mask_buf_data (MaskBuf *mask_buf);
guchar * mask_buf_data_clear (MaskBuf *mask_buf);
/* The disk caching functions */
void temp_buf_swap (TempBuf *buf);
void temp_buf_unswap (TempBuf *buf);
void temp_buf_swap_free (TempBuf *buf);
/* Called by app_procs:exit() to free up the cached undo buffer */
void swapping_free (void);
#endif /* __TEMP_BUF_H__ */