src/imgstore.h@be19ef28e2ce (annotated)
src/imgstore.h
Wed, 21 Dec 2005 18:43:39 +0000
- author
- Richard Laager <rlaager@pidgin.im>
- date
- Wed, 21 Dec 2005 18:43:39 +0000
- changeset 12601
- be19ef28e2ce
- parent 9713
- bb37562302a1
- permissions
- -rw-r--r--
[gaim-migrate @ 14935]
Jason LeBrun wrote to gaim-devel:
"I have found a small quirk in the way gdk_pixbuf_loader works. When you
are using it without signalling, the proper way to use it is to call
gdk_pixbuf_loader_close *before* calling gdk_pixbuf_loader_get_animation
or gdk_pixbuf_loader_get_pixbuf. The call to gdk_pixbuf_loader_close
signals that no more writes will be occuring.
In particular, this affects images that are less than 1k in size. If
gdk_pixbuf_loader_close is not called before _get_animation, the loader
will not return anything unless it has received more than 1k of data
(the file type sniffing buffer size) or it has been closed.
So, the proper order of calls for loaders in the gtk*.c code is:
gdk_pixbuf_loader_new();
gdk_pixbuf_loader_write();
gdk_pixbuf_loader_close();
gdk_pixbuf_loader_get_animation();"
I know we fixed a bug by changing this in one place. I've gone through and updated the rest.
| 6982 | 1 | /** |
| 2 | * @file imgstore.h IM Image Store API | |
| 3 | * @ingroup core | |
| 4 | * | |
| 5 | * gaim | |
| 6 | * | |
| 8046 | 7 | * Gaim is the legal property of its developers, whose names are too numerous |
| 8 | * to list here. Please refer to the COPYRIGHT file distributed with this | |
| 9 | * source distribution. | |
| 6982 | 10 | * |
| 11 | * This program is free software; you can redistribute it and/or modify | |
| 12 | * it under the terms of the GNU General Public License as published by | |
| 13 | * the Free Software Foundation; either version 2 of the License, or | |
| 14 | * (at your option) any later version. | |
| 15 | * | |
| 16 | * This program is distributed in the hope that it will be useful, | |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 19 | * GNU General Public License for more details. | |
| 20 | * | |
| 21 | * You should have received a copy of the GNU General Public License | |
| 22 | * along with this program; if not, write to the Free Software | |
| 23 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 24 | * | |
| 25 | */ | |
|
9713
bb37562302a1
[gaim-migrate @ 10574]
Mark Doliner <markdoliner@pidgin.im>
parents:
8962
diff
changeset
|
26 | #ifndef _GAIM_IMGSTORE_H_ |
|
bb37562302a1
[gaim-migrate @ 10574]
Mark Doliner <markdoliner@pidgin.im>
parents:
8962
diff
changeset
|
27 | #define _GAIM_IMGSTORE_H_ |
| 6982 | 28 | |
| 8962 | 29 | struct _GaimStoredImage; |
| 30 | typedef struct _GaimStoredImage GaimStoredImage; | |
| 6982 | 31 | |
| 32 | #ifdef __cplusplus | |
| 33 | extern "C" { | |
| 34 | #endif | |
| 35 | ||
| 36 | /** | |
| 37 | * Add an image to the store. The caller owns a reference | |
| 38 | * to the image in the store, and must dereference the image | |
| 39 | * with gaim_imgstore_unref for it to be freed. | |
| 40 | * | |
| 41 | * @param data Pointer to the image data. | |
| 42 | * @param size Image data's size. | |
| 43 | * @param filename Filename associated with image. | |
| 44 | ||
| 45 | * @return ID for the image. | |
| 46 | */ | |
| 47 | int gaim_imgstore_add(const void *data, size_t size, const char *filename); | |
| 48 | ||
| 49 | /** | |
| 50 | * Retrieve an image from the store. The caller does not own a | |
| 51 | * reference to the image. | |
| 52 | * | |
| 53 | * @param id The ID for the image. | |
| 54 | * | |
| 55 | * @return A pointer to the requested image, or NULL if it was not found. | |
| 56 | */ | |
| 57 | GaimStoredImage *gaim_imgstore_get(int id); | |
| 58 | ||
| 59 | /** | |
| 8962 | 60 | * Retrieves a pointer to the image's data. |
| 61 | * | |
| 62 | * @param i The Image | |
| 63 | * | |
| 64 | * @return A pointer to the data, which must not | |
| 65 | * be freed or modified. | |
| 66 | */ | |
| 67 | gpointer gaim_imgstore_get_data(GaimStoredImage *i); | |
| 68 | ||
| 69 | /** | |
| 70 | * Retrieves the length of the image's data. | |
| 71 | * | |
| 72 | * @param i The Image | |
| 73 | * | |
| 74 | * @return The size of the data that the pointer returned by | |
| 75 | * gaim_imgstore_get_data points to. | |
| 76 | */ | |
| 77 | size_t gaim_imgstore_get_size(GaimStoredImage *i); | |
| 78 | ||
| 79 | /** | |
| 80 | * Retrieves a pointer to the image's filename. | |
| 81 | * | |
| 82 | * @param i The Image | |
| 83 | * | |
| 84 | * @return A pointer to the filename, which must not | |
| 85 | * be freed or modified. | |
| 86 | */ | |
| 87 | const char *gaim_imgstore_get_filename(GaimStoredImage *i); | |
| 88 | ||
| 89 | /** | |
| 6982 | 90 | * Increment the reference count for an image in the store. The |
| 91 | * image will be removed from the store when the reference count | |
| 92 | * is zero. | |
| 93 | * | |
| 94 | * @param id The ID for the image. | |
| 95 | */ | |
| 96 | void gaim_imgstore_ref(int id); | |
| 97 | ||
| 98 | /** | |
| 99 | * Decrement the reference count for an image in the store. The | |
| 100 | * image will be removed from the store when the reference count | |
| 101 | * is zero. | |
| 102 | * | |
| 103 | * @param id The ID for the image. | |
| 104 | */ | |
| 105 | void gaim_imgstore_unref(int id); | |
| 106 | ||
| 107 | #ifdef __cplusplus | |
| 108 | } | |
| 109 | #endif | |
| 110 | ||
|
9713
bb37562302a1
[gaim-migrate @ 10574]
Mark Doliner <markdoliner@pidgin.im>
parents:
8962
diff
changeset
|
111 | #endif /* _GAIM_IMGSTORE_H_ */ |
