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cb918cdb02
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.
110 lines
3.3 KiB
C
110 lines
3.3 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- */
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/* GdkPixbuf library - Private declarations
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*
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* Copyright (C) 1999 The Free Software Foundation
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*
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* Authors: Mark Crichton <crichton@gimp.org>
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* Miguel de Icaza <miguel@gnu.org>
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* Federico Mena-Quintero <federico@gimp.org>
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* Havoc Pennington <hp@redhat.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef GDK_PIXBUF_PRIVATE_H
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#define GDK_PIXBUF_PRIVATE_H
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#include "gdk-pixbuf.h"
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#include "gdk-pixbuf-io.h"
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#include "gdk-pixbuf-i18n.h"
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#include <stdio.h>
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typedef struct _GdkPixbufClass GdkPixbufClass;
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#define GDK_PIXBUF_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_PIXBUF, GdkPixbufClass))
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#define GDK_IS_PIXBUF_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_PIXBUF))
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#define GDK_PIXBUF_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_PIXBUF, GdkPixbufClass))
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/* Private part of the GdkPixbuf structure */
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struct _GdkPixbuf {
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GObject parent_instance;
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/* Color space */
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GdkColorspace colorspace;
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/* Number of channels, alpha included */
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int n_channels;
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/* Bits per channel */
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int bits_per_sample;
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/* Size */
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int width, height;
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/* Offset between rows */
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int rowstride;
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/* The pixel array */
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guchar *pixels;
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/* Destroy notification function; it is supposed to free the pixel array */
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GdkPixbufDestroyNotify destroy_fn;
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/* User data for the destroy notification function */
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gpointer destroy_fn_data;
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/* Do we have an alpha channel? */
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guint has_alpha : 1;
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};
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struct _GdkPixbufClass {
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GObjectClass parent_class;
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};
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#ifdef GDK_PIXBUF_ENABLE_BACKEND
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void _gdk_pixbuf_lock (GdkPixbufModule *image_module);
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void _gdk_pixbuf_unlock (GdkPixbufModule *image_module);
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GdkPixbufModule *_gdk_pixbuf_get_module (guchar *buffer, guint size,
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const gchar *filename,
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GError **error);
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GdkPixbufModule *_gdk_pixbuf_get_named_module (const char *name,
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GError **error);
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gboolean _gdk_pixbuf_load_module (GdkPixbufModule *image_module,
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GError **error);
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GdkPixbuf *_gdk_pixbuf_generic_image_load (GdkPixbufModule *image_module,
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FILE *f,
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GError **error);
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GdkPixbufFormat *_gdk_pixbuf_get_format (GdkPixbufModule *image_module);
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#ifdef USE_GMODULE
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#define MODULE_ENTRY(type,function) function
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#else
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#define MODULE_ENTRY(type,function) _gdk_pixbuf__ ## type ## _ ## function
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#endif
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#endif /* GDK_PIXBUF_ENABLE_BACKEND */
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#endif /* GDK_PIXBUF_PRIVATE_H */
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