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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, see <http://www.gnu.org/licenses/>.
*/
#ifndef GDK_PIXBUF_PRIVATE_H
#define GDK_PIXBUF_PRIVATE_H
#include <stdio.h>
#include <math.h>
#include <glib-object.h>
#include <glib/gi18n-lib.h>
#include "gdk-pixbuf-core.h"
#include "gdk-pixbuf-loader.h"
#include "gdk-pixbuf-io.h"
#define LOAD_BUFFER_SIZE 65536
#define SNIFF_BUFFER_SIZE 4096
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))
/* Helper macros to convert between density units */
#define DPI_TO_DPM(value) ((int) round ((value) * 1000 / 25.4))
#define DPI_TO_DPCM(value) ((int) round ((value) / 2.54))
#define DPM_TO_DPI(value) ((int) round ((value) * 25.4 / 1000))
#define DPCM_TO_DPI(value) ((int) round ((value) * 2.54))
/* Default fill color */
#define DEFAULT_FILL_COLOR 0x979899ff
/* 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;
/* Replaces "pixels" member (and destroy notify) */
GBytes *bytes;
/* Do we have an alpha channel? */
guint has_alpha : 1;
};
struct _GdkPixbufClass {
GObjectClass parent_class;
};
#ifdef GDK_PIXBUF_ENABLE_BACKEND
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);
#endif /* GDK_PIXBUF_ENABLE_BACKEND */
GdkPixbuf * _gdk_pixbuf_new_from_resource_try_pixdata (const char *resource_path);
GdkPixbufLoader *_gdk_pixbuf_loader_new_with_filename (const char *filename);
void _gdk_pixbuf_init_gettext (void);
#endif /* GDK_PIXBUF_PRIVATE_H */
#ifdef GDK_PIXBUF_RELOCATABLE
gchar * gdk_pixbuf_get_toplevel (void);
#endif /* G_OS_WIN32 */
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