* Library General Public License for more details.
*
* You should have received a copy of the GNU Library 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.
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
-#include <config.h>
+#include "config.h"
+
#include "gtkdebug.h"
#include "gtkiconcache.h"
+#include "gtkiconcachevalidator.h"
+
#include <glib/gstdio.h>
+#include <gdk-pixbuf/gdk-pixdata.h>
-#ifdef HAVE_MMAP
-#include <sys/mman.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
#endif
#ifdef G_OS_WIN32
-#include <windows.h>
#include <io.h>
#endif
+#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#include <fcntl.h>
#include <string.h>
+
#ifndef _O_BINARY
#define _O_BINARY 0
#endif
#define GET_UINT16(cache, offset) (GUINT16_FROM_BE (*(guint16 *)((cache) + (offset))))
#define GET_UINT32(cache, offset) (GUINT32_FROM_BE (*(guint32 *)((cache) + (offset))))
+
struct _GtkIconCache {
gint ref_count;
- gsize size;
+ GMappedFile *map;
gchar *buffer;
-#ifdef G_OS_WIN32
- HANDLE handle;
-#endif
+
+ guint32 last_chain_offset;
};
GtkIconCache *
_gtk_icon_cache_ref (GtkIconCache *cache)
{
- cache->ref_count ++;
+ cache->ref_count++;
return cache;
}
{
GTK_NOTE (ICONTHEME,
g_print ("unmapping icon cache\n"));
-#ifdef HAVE_MMAP
- munmap (cache->buffer, cache->size);
-#endif
-#ifdef G_OS_WIN32
- UnmapViewOfFile (cache->buffer);
- CloseHandle (cache->handle);
-#endif
+
+ if (cache->map)
+ g_mapped_file_unref (cache->map);
g_free (cache);
}
}
_gtk_icon_cache_new_for_path (const gchar *path)
{
GtkIconCache *cache = NULL;
+ GMappedFile *map;
-#if defined(HAVE_MMAP) || defined(G_OS_WIN32)
gchar *cache_filename;
gint fd = -1;
- struct stat st;
- struct stat path_st;
- gchar *buffer = NULL;
-#ifdef G_OS_WIN32
- HANDLE handle = NULL;
-#endif
-
- if (g_getenv ("GTK_NO_ICON_CACHE"))
- return NULL;
+ GStatBuf st;
+ GStatBuf path_st;
- /* Check if we have a cache file */
+ /* Check if we have a cache file */
cache_filename = g_build_filename (path, "icon-theme.cache", NULL);
GTK_NOTE (ICONTHEME,
g_print ("look for cache in %s\n", path));
- if (!g_file_test (cache_filename, G_FILE_TEST_IS_REGULAR))
- goto done;
-
if (g_stat (path, &path_st) < 0)
goto done;
fd = g_open (cache_filename, O_RDONLY|_O_BINARY, 0);
if (fd < 0)
- {
- g_free (cache_filename);
- return NULL;
- }
-
+ goto done;
+
+#ifdef G_OS_WIN32
+
+/* Bug 660730: _fstat32 is only defined in msvcrt80.dll+/VS 2005+ */
+/* or possibly in the msvcrt.dll linked to by the Windows DDK */
+/* (will need to check on the Windows DDK part later) */
+#if (_MSC_VER >= 1400 || __MSVCRT_VERSION__ >= 0x0800)
+#undef fstat /* Just in case */
+#define fstat _fstat32
+#endif
+#endif
+
if (fstat (fd, &st) < 0 || st.st_size < 4)
goto done;
goto done;
}
-#ifndef G_OS_WIN32
- buffer = (gchar *) mmap (NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
+ map = g_mapped_file_new (cache_filename, FALSE, NULL);
- if (buffer == MAP_FAILED)
+ if (!map)
goto done;
-#else
- handle = CreateFileMapping (_get_osfhandle (fd), NULL, PAGE_READONLY,
- 0, 0, NULL);
- if (handle == NULL)
- goto done;
-
- buffer = MapViewOfFile (handle, FILE_MAP_READ, 0, 0, 0);
- if (buffer == NULL)
+#ifdef G_ENABLE_DEBUG
+ if (gtk_get_debug_flags () & GTK_DEBUG_ICONTHEME)
{
- CloseHandle (handle);
- goto done;
- }
-#endif
+ CacheInfo info;
- /* Verify version */
- if (GET_UINT16 (buffer, 0) != MAJOR_VERSION ||
- GET_UINT16 (buffer, 2) != MINOR_VERSION)
- {
-#ifndef G_OS_WIN32
- munmap (buffer, st.st_size);
-#else
- UnmapViewOfFile (buffer);
- CloseHandle (handle);
-#endif
- GTK_NOTE (ICONTHEME,
- g_print ("wrong cache version\n"));
- goto done;
+ info.cache = g_mapped_file_get_contents (map);
+ info.cache_size = g_mapped_file_get_length (map);
+ info.n_directories = 0;
+ info.flags = CHECK_OFFSETS|CHECK_STRINGS;
+
+ if (!_gtk_icon_cache_validate (&info))
+ {
+ g_mapped_file_unref (map);
+ g_warning ("Icon cache '%s' is invalid\n", cache_filename);
+
+ goto done;
+ }
}
-
- GTK_NOTE (ICONTHEME,
- g_print ("found cache for %s\n", path));
+#endif
+
+ GTK_NOTE (ICONTHEME, g_print ("found cache for %s\n", path));
cache = g_new0 (GtkIconCache, 1);
cache->ref_count = 1;
- cache->buffer = buffer;
-#ifdef G_OS_WIN32
- cache->handle = handle;
-#endif
- cache->size = st.st_size;
+ cache->map = map;
+ cache->buffer = g_mapped_file_get_contents (map);
+
done:
g_free (cache_filename);
- if (fd != -1)
+ if (fd >= 0)
close (fd);
-#endif /* HAVE_MMAP || G_OS_WIN32 */
+ return cache;
+}
+GtkIconCache *
+_gtk_icon_cache_new (const gchar *data)
+{
+ GtkIconCache *cache;
+
+ cache = g_new0 (GtkIconCache, 1);
+ cache->ref_count = 1;
+ cache->map = NULL;
+ cache->buffer = (gchar *)data;
+
return cache;
}
-static int
+static gint
get_directory_index (GtkIconCache *cache,
const gchar *directory)
{
guint32 dir_list_offset;
- int n_dirs;
- int i;
+ gint n_dirs;
+ gint i;
dir_list_offset = GET_UINT32 (cache->buffer, 8);
return -1;
}
-gboolean
-_gtk_icon_cache_has_directory (GtkIconCache *cache,
- const gchar *directory)
+gint
+_gtk_icon_cache_get_directory_index (GtkIconCache *cache,
+ const gchar *directory)
{
- return get_directory_index (cache, directory) != -1;
+ return get_directory_index (cache, directory);
}
static guint
icon_name_hash (gconstpointer key)
{
- const char *p = key;
- guint h = *p;
+ const signed char *p = key;
+ guint32 h = *p;
if (h)
for (p += 1; *p != '\0'; p++)
return h;
}
-gint
-_gtk_icon_cache_get_icon_flags (GtkIconCache *cache,
- const gchar *icon_name,
- const gchar *directory)
+static gint
+find_image_offset (GtkIconCache *cache,
+ const gchar *icon_name,
+ gint directory_index)
{
guint32 hash_offset;
guint32 n_buckets;
guint32 chain_offset;
- int hash, directory_index;
+ int hash;
guint32 image_list_offset, n_images;
- gboolean found = FALSE;
int i;
-
+
+ chain_offset = cache->last_chain_offset;
+ if (chain_offset)
+ {
+ guint32 name_offset = GET_UINT32 (cache->buffer, chain_offset + 4);
+ gchar *name = cache->buffer + name_offset;
+
+ if (strcmp (name, icon_name) == 0)
+ goto find_dir;
+ }
+
hash_offset = GET_UINT32 (cache->buffer, 4);
n_buckets = GET_UINT32 (cache->buffer, hash_offset);
-
hash = icon_name_hash (icon_name) % n_buckets;
chain_offset = GET_UINT32 (cache->buffer, hash_offset + 4 + 4 * hash);
gchar *name = cache->buffer + name_offset;
if (strcmp (name, icon_name) == 0)
- {
- found = TRUE;
- break;
+ {
+ cache->last_chain_offset = chain_offset;
+ goto find_dir;
}
-
+
chain_offset = GET_UINT32 (cache->buffer, chain_offset);
}
- if (!found)
- return 0;
+ cache->last_chain_offset = 0;
+ return 0;
+find_dir:
/* We've found an icon list, now check if we have the right icon in it */
- directory_index = get_directory_index (cache, directory);
image_list_offset = GET_UINT32 (cache->buffer, chain_offset + 8);
n_images = GET_UINT32 (cache->buffer, image_list_offset);
for (i = 0; i < n_images; i++)
{
if (GET_UINT16 (cache->buffer, image_list_offset + 4 + 8 * i) ==
- directory_index)
- return GET_UINT16 (cache->buffer, image_list_offset + 4 + 8 * i + 2);
+ directory_index)
+ return image_list_offset + 4 + 8 * i;
}
-
+
return 0;
}
+gint
+_gtk_icon_cache_get_icon_flags (GtkIconCache *cache,
+ const gchar *icon_name,
+ gint directory_index)
+{
+ guint32 image_offset;
+
+ image_offset = find_image_offset (cache, icon_name, directory_index);
+
+ if (!image_offset)
+ return 0;
+
+ return GET_UINT16 (cache->buffer, image_offset + 2);
+}
+
void
_gtk_icon_cache_add_icons (GtkIconCache *cache,
const gchar *directory,
hash_offset = GET_UINT32 (cache->buffer, 4);
n_buckets = GET_UINT32 (cache->buffer, hash_offset);
-
+
for (i = 0; i < n_buckets; i++)
{
chain_offset = GET_UINT32 (cache->buffer, hash_offset + 4 + 4 * i);
return FALSE;
}
-
+
+gboolean
+_gtk_icon_cache_has_icon_in_directory (GtkIconCache *cache,
+ const gchar *icon_name,
+ const gchar *directory)
+{
+ guint32 hash_offset;
+ guint32 n_buckets;
+ guint32 chain_offset;
+ gint hash;
+ gboolean found_icon = FALSE;
+ gint directory_index;
+
+ directory_index = get_directory_index (cache, directory);
+
+ if (directory_index == -1)
+ return FALSE;
+
+ hash_offset = GET_UINT32 (cache->buffer, 4);
+ n_buckets = GET_UINT32 (cache->buffer, hash_offset);
+
+ hash = icon_name_hash (icon_name) % n_buckets;
+
+ chain_offset = GET_UINT32 (cache->buffer, hash_offset + 4 + 4 * hash);
+ while (chain_offset != 0xffffffff)
+ {
+ guint32 name_offset = GET_UINT32 (cache->buffer, chain_offset + 4);
+ gchar *name = cache->buffer + name_offset;
+
+ if (strcmp (name, icon_name) == 0)
+ {
+ found_icon = TRUE;
+ break;
+ }
+
+ chain_offset = GET_UINT32 (cache->buffer, chain_offset);
+ }
+
+ if (found_icon)
+ {
+ guint32 image_list_offset = GET_UINT32 (cache->buffer, chain_offset + 8);
+ guint32 n_images = GET_UINT32 (cache->buffer, image_list_offset);
+ guint32 image_offset = image_list_offset + 4;
+ gint i;
+ for (i = 0; i < n_images; i++)
+ {
+ guint16 index = GET_UINT16 (cache->buffer, image_offset);
+
+ if (index == directory_index)
+ return TRUE;
+ image_offset += 8;
+ }
+ }
+
+ return FALSE;
+}
+
+static void
+pixbuf_destroy_cb (guchar *pixels,
+ gpointer data)
+{
+ GtkIconCache *cache = data;
+
+ _gtk_icon_cache_unref (cache);
+}
+
+GdkPixbuf *
+_gtk_icon_cache_get_icon (GtkIconCache *cache,
+ const gchar *icon_name,
+ gint directory_index)
+{
+ guint32 offset, image_data_offset, pixel_data_offset;
+ guint32 length, type;
+ GdkPixbuf *pixbuf;
+ GdkPixdata pixdata;
+ GError *error = NULL;
+
+ offset = find_image_offset (cache, icon_name, directory_index);
+
+ if (!offset)
+ return NULL;
+
+ image_data_offset = GET_UINT32 (cache->buffer, offset + 4);
+
+ if (!image_data_offset)
+ return NULL;
+
+ pixel_data_offset = GET_UINT32 (cache->buffer, image_data_offset);
+
+ type = GET_UINT32 (cache->buffer, pixel_data_offset);
+
+ if (type != 0)
+ {
+ GTK_NOTE (ICONTHEME,
+ g_print ("invalid pixel data type %u\n", type));
+ return NULL;
+ }
+
+ length = GET_UINT32 (cache->buffer, pixel_data_offset + 4);
+
+ if (!gdk_pixdata_deserialize (&pixdata, length,
+ (guchar *)(cache->buffer + pixel_data_offset + 8),
+ &error))
+ {
+ GTK_NOTE (ICONTHEME,
+ g_print ("could not deserialize data: %s\n", error->message));
+ g_error_free (error);
+
+ return NULL;
+ }
+
+ pixbuf = gdk_pixbuf_new_from_data (pixdata.pixel_data, GDK_COLORSPACE_RGB,
+ (pixdata.pixdata_type & GDK_PIXDATA_COLOR_TYPE_MASK) == GDK_PIXDATA_COLOR_TYPE_RGBA,
+ 8, pixdata.width, pixdata.height, pixdata.rowstride,
+ (GdkPixbufDestroyNotify)pixbuf_destroy_cb,
+ cache);
+ if (!pixbuf)
+ {
+ GTK_NOTE (ICONTHEME,
+ g_print ("could not convert pixdata to pixbuf: %s\n", error->message));
+ g_error_free (error);
+
+ return NULL;
+ }
+
+ _gtk_icon_cache_ref (cache);
+
+ return pixbuf;
+}
+
+GtkIconData *
+_gtk_icon_cache_get_icon_data (GtkIconCache *cache,
+ const gchar *icon_name,
+ gint directory_index)
+{
+ guint32 offset, image_data_offset, meta_data_offset;
+ GtkIconData *data;
+ int i;
+
+ offset = find_image_offset (cache, icon_name, directory_index);
+ if (!offset)
+ return NULL;
+
+ image_data_offset = GET_UINT32 (cache->buffer, offset + 4);
+ if (!image_data_offset)
+ return NULL;
+
+ meta_data_offset = GET_UINT32 (cache->buffer, image_data_offset + 4);
+
+ if (!meta_data_offset)
+ return NULL;
+
+ data = g_slice_new0 (GtkIconData);
+
+ offset = GET_UINT32 (cache->buffer, meta_data_offset);
+ if (offset)
+ {
+ data->has_embedded_rect = TRUE;
+ data->x0 = GET_UINT16 (cache->buffer, offset);
+ data->y0 = GET_UINT16 (cache->buffer, offset + 2);
+ data->x1 = GET_UINT16 (cache->buffer, offset + 4);
+ data->y1 = GET_UINT16 (cache->buffer, offset + 6);
+ }
+
+ offset = GET_UINT32 (cache->buffer, meta_data_offset + 4);
+ if (offset)
+ {
+ data->n_attach_points = GET_UINT32 (cache->buffer, offset);
+ data->attach_points = g_new (GdkPoint, data->n_attach_points);
+ for (i = 0; i < data->n_attach_points; i++)
+ {
+ data->attach_points[i].x = GET_UINT16 (cache->buffer, offset + 4 + 4 * i);
+ data->attach_points[i].y = GET_UINT16 (cache->buffer, offset + 4 + 4 * i + 2);
+ }
+ }
+
+ offset = GET_UINT32 (cache->buffer, meta_data_offset + 8);
+ if (offset)
+ {
+ gint n_names;
+ gchar *lang, *name;
+ gchar **langs;
+ GHashTable *table = g_hash_table_new (g_str_hash, g_str_equal);
+
+ n_names = GET_UINT32 (cache->buffer, offset);
+
+ for (i = 0; i < n_names; i++)
+ {
+ lang = cache->buffer + GET_UINT32 (cache->buffer, offset + 4 + 8 * i);
+ name = cache->buffer + GET_UINT32 (cache->buffer, offset + 4 + 8 * i + 4);
+
+ g_hash_table_insert (table, lang, name);
+ }
+
+ langs = (gchar **)g_get_language_names ();
+ for (i = 0; langs[i]; i++)
+ {
+ name = g_hash_table_lookup (table, langs[i]);
+ if (name)
+ {
+ data->display_name = g_strdup (name);
+ break;
+ }
+ }
+
+ g_hash_table_destroy (table);
+ }
+
+ return data;
+}
projects / ~andy / gtk / blobdiff