gtk/gdk-pixbuf/gdk-pixbuf-private.h
Matthias Clasen cb918cdb02 Changes to make gdk-pixbuf threadsafe (#157310, #157306, Colin Walters):
2004-11-12  Matthias Clasen  <mclasen@redhat.com>

	Changes to make gdk-pixbuf threadsafe  (#157310, #157306,
	Colin Walters):

	* gdk-pixbuf-io.h (enum GdkPixbufFormatFlags): Add
	GDK_PIXBUF_FORMAT_THREADSAFE to indicate that an image loader
	is threadsafe.

	* gdk-pixbuf-io.c (get_file_formats, _gdk_pixbuf_load_module):
	Use a lock to make initialization of global data structures
	threadsafe.
	* gdk-pixbuf-private.h:
	* gdk-pixbuf-io.c (_gdk_pixbuf_lock, _gdk_pixbuf_unlock):
	Auxiliary functions which use another lock to protect
	threadunsafe image loaders.

	* gdk-pixbuf-io.c (gdk_pixbuf_real_save):
	(save_to_callback_with_tmp_file):
	(gdk_pixbuf_real_save_to_callback):
	(gdk_pixbuf_new_from_xpm_data):
	(_gdk_pixbuf_generic_image_load):
	* gdk-pixbuf-animation.c (gdk_pixbuf_animation_new_from_file):
	* gdk-pixbuf-loader.c (gdk_pixbuf_loader_load_module):
	(gdk_pixbuf_loader_close):
	(gdk_pixbuf_loader_finalize):
	Use _gdk_pixbuf_lock() and _gdk_pixbuf_unlock().

	* io-ani.c, io-bmp.c, io-gif.c, io-ico.c:
	* io-jpeg.c, io-pcx.c, io-png.c, io-pnm.c:
	* io-ras.c, io-tga.c, io-wbmp.c, io-xbm.c:
	* io-xpm.c: Mark as threadsafe.

	* io-tiff.c: Remove pointless locking, mark as
	threadunsafe.
2004-11-12 05:34:31 +00:00

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- */
/* GdkPixbuf library - Private declarations
*
* Copyright (C) 1999 The Free Software Foundation
*
* Authors: Mark Crichton <crichton@gimp.org>
* Miguel de Icaza <miguel@gnu.org>
* Federico Mena-Quintero <federico@gimp.org>
* Havoc Pennington <hp@redhat.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef GDK_PIXBUF_PRIVATE_H
#define GDK_PIXBUF_PRIVATE_H
#include "gdk-pixbuf.h"
#include "gdk-pixbuf-io.h"
#include "gdk-pixbuf-i18n.h"
#include <stdio.h>
typedef struct _GdkPixbufClass GdkPixbufClass;
#define GDK_PIXBUF_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_PIXBUF, GdkPixbufClass))
#define GDK_IS_PIXBUF_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_PIXBUF))
#define GDK_PIXBUF_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_PIXBUF, GdkPixbufClass))
/* Private part of the GdkPixbuf structure */
struct _GdkPixbuf {
GObject parent_instance;
/* Color space */
GdkColorspace colorspace;
/* Number of channels, alpha included */
int n_channels;
/* Bits per channel */
int bits_per_sample;
/* Size */
int width, height;
/* Offset between rows */
int rowstride;
/* The pixel array */
guchar *pixels;
/* Destroy notification function; it is supposed to free the pixel array */
GdkPixbufDestroyNotify destroy_fn;
/* User data for the destroy notification function */
gpointer destroy_fn_data;
/* Do we have an alpha channel? */
guint has_alpha : 1;
};
struct _GdkPixbufClass {
GObjectClass parent_class;
};
#ifdef GDK_PIXBUF_ENABLE_BACKEND
void _gdk_pixbuf_lock (GdkPixbufModule *image_module);
void _gdk_pixbuf_unlock (GdkPixbufModule *image_module);
GdkPixbufModule *_gdk_pixbuf_get_module (guchar *buffer, guint size,
const gchar *filename,
GError **error);
GdkPixbufModule *_gdk_pixbuf_get_named_module (const char *name,
GError **error);
gboolean _gdk_pixbuf_load_module (GdkPixbufModule *image_module,
GError **error);
GdkPixbuf *_gdk_pixbuf_generic_image_load (GdkPixbufModule *image_module,
FILE *f,
GError **error);
GdkPixbufFormat *_gdk_pixbuf_get_format (GdkPixbufModule *image_module);
#ifdef USE_GMODULE
#define MODULE_ENTRY(type,function) function
#else
#define MODULE_ENTRY(type,function) _gdk_pixbuf__ ## type ## _ ## function
#endif
#endif /* GDK_PIXBUF_ENABLE_BACKEND */
#endif /* GDK_PIXBUF_PRIVATE_H */