| 1 | /* GDK - The GIMP Drawing Kit |
|---|
| 2 | * Copyright (C) 2021 Red Hat, Inc. |
|---|
| 3 | * |
|---|
| 4 | * This library is free software; you can redistribute it and/or |
|---|
| 5 | * modify it under the terms of the GNU Lesser General Public |
|---|
| 6 | * License as published by the Free Software Foundation; either |
|---|
| 7 | * version 2 of the License, or (at your option) any later version. |
|---|
| 8 | * |
|---|
| 9 | * This library is distributed in the hope that it will be useful, |
|---|
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
|---|
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|---|
| 12 | * Lesser General Public License for more details. |
|---|
| 13 | * |
|---|
| 14 | * You should have received a copy of the GNU Lesser General Public |
|---|
| 15 | * License along with this library. If not, see <http://www.gnu.org/licenses/>. |
|---|
| 16 | */ |
|---|
| 17 | |
|---|
| 18 | #ifndef __GDK_TIFF_PRIVATE_H__ |
|---|
| 19 | #define __GDK_TIFF_PRIVATE_H__ |
|---|
| 20 | |
|---|
| 21 | #include "gdktexture.h" |
|---|
| 22 | #include <gio/gio.h> |
|---|
| 23 | |
|---|
| 24 | #define TIFF_SIGNATURE1 "MM\x00\x2a" |
|---|
| 25 | #define TIFF_SIGNATURE2 "II\x2a\x00" |
|---|
| 26 | |
|---|
| 27 | GdkTexture *gdk_load_tiff (GBytes *bytes, |
|---|
| 28 | GError **error); |
|---|
| 29 | |
|---|
| 30 | GBytes * gdk_save_tiff (GdkTexture *texture); |
|---|
| 31 | |
|---|
| 32 | static inline gboolean |
|---|
| 33 | gdk_is_tiff (GBytes *bytes) |
|---|
| 34 | { |
|---|
| 35 | const char *data; |
|---|
| 36 | gsize size; |
|---|
| 37 | |
|---|
| 38 | data = g_bytes_get_data (bytes, size: &size); |
|---|
| 39 | |
|---|
| 40 | return (size > strlen (TIFF_SIGNATURE1) && |
|---|
| 41 | memcmp (s1: data, TIFF_SIGNATURE1, n: strlen (TIFF_SIGNATURE1)) == 0) || |
|---|
| 42 | (size > strlen (TIFF_SIGNATURE2) && |
|---|
| 43 | memcmp (s1: data, TIFF_SIGNATURE2, n: strlen (TIFF_SIGNATURE2)) == 0); |
|---|
| 44 | } |
|---|
| 45 | |
|---|
| 46 | #endif |
|---|
| 47 | |
|---|
