From 4932272734f456d036f3b742f62cad11a1f99f2f Mon Sep 17 00:00:00 2001 From: Mark Doliner Date: Wed, 22 Jun 2011 07:07:28 +0000 Subject: [PATCH] Start looking at the GError parameter every time we call these functions: - gdk_pixbuf_loader_write - gdk_pixbuf_loader_close - gdk_pixbuf_new_from_file - gdk_pixbuf_new_from_file_at_size - gdk_pixbuf_new_from_file_at_scale There are times when gdkpixbuf returns a semi-invalid GdkPixbuf object and also sets the GError. If this happens we want to discard and ignore the GdkPixbuf object because it can cause problems. For example, calling gdk_pixbuf_scale_simple() causes gdkpixbuf to rapidly consume memory in an infinite loop. And that's bad. This commit adds some helper functions to gtkutils.[c|h] that make it a little easier to check the GError value. We should use them everywhere we call any of the above functions. --HG-- extra : convert_revision : e802003adbf0be4496de3de8ac03b47c1e471d00 --- pidgin/gtkaccount.c | 2 +- pidgin/gtkblist.c | 24 ++++----- pidgin/gtkconv.c | 73 +++++++++++++------------ pidgin/gtkdialogs.c | 2 +- pidgin/gtkft.c | 4 +- pidgin/gtkimhtml.c | 12 +---- pidgin/gtkmain.c | 2 +- pidgin/gtkprefs.c | 8 +-- pidgin/gtkrequest.c | 58 +++++++++----------- pidgin/gtksmiley.c | 9 ++-- pidgin/gtkstatusbox.c | 53 ++++++++++++------ pidgin/gtkutils.c | 145 +++++++++++++++++++++++++++++++++++++++++++++----- pidgin/gtkutils.h | 106 ++++++++++++++++++++++++++++++++++++ 13 files changed, 363 insertions(+), 135 deletions(-) diff --git a/pidgin/gtkaccount.c b/pidgin/gtkaccount.c index 39d6b11371..7bb0524961 100644 --- a/pidgin/gtkaccount.c +++ b/pidgin/gtkaccount.c @@ -2135,7 +2135,7 @@ populate_accounts_list(AccountsWindow *dialog) gtk_list_store_clear(dialog->model); if ((path = purple_prefs_get_path(PIDGIN_PREFS_ROOT "/accounts/buddyicon")) != NULL) { - GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file(path, NULL); + GdkPixbuf *pixbuf = pidgin_pixbuf_new_from_file(path); if (pixbuf != NULL) { global_buddyicon = gdk_pixbuf_scale_simple(pixbuf, 22, 22, GDK_INTERP_HYPER); g_object_unref(G_OBJECT(pixbuf)); diff --git a/pidgin/gtkblist.c b/pidgin/gtkblist.c index c32f1b5e42..f0db91ae8d 100644 --- a/pidgin/gtkblist.c +++ b/pidgin/gtkblist.c @@ -2643,7 +2643,6 @@ static GdkPixbuf *pidgin_blist_get_buddy_icon(PurpleBlistNode *node, gboolean scaled, gboolean greyed) { gsize len; - GdkPixbufLoader *loader; PurpleBuddy *buddy = NULL; PurpleGroup *group = NULL; const guchar *data = NULL; @@ -2710,21 +2709,20 @@ static GdkPixbuf *pidgin_blist_get_buddy_icon(PurpleBlistNode *node, return NULL; } - loader = gdk_pixbuf_loader_new(); - gdk_pixbuf_loader_write(loader, data, len, NULL); - gdk_pixbuf_loader_close(loader, NULL); - - purple_imgstore_unref(custom_img); + buf = pidgin_pixbuf_from_data(data, len); purple_buddy_icon_unref(icon); - - buf = gdk_pixbuf_loader_get_pixbuf(loader); - if (buf) - g_object_ref(G_OBJECT(buf)); - g_object_unref(G_OBJECT(loader)); - if (!buf) { + purple_debug_warning("gtkblist", "Couldn't load buddy icon " + "on account %s (%s) buddyname=%s " + "custom_img_data=%p\n", + account ? purple_account_get_username(account) : "(no account)", + account ? purple_account_get_protocol_id(account) : "(no account)", + buddy ? purple_buddy_get_name(buddy) : "(no buddy)", + custom_img ? purple_imgstore_get_data(custom_img) : NULL); + purple_imgstore_unref(custom_img); return NULL; } + purple_imgstore_unref(custom_img); if (greyed) { gboolean offline = FALSE, idle = FALSE; @@ -3952,7 +3950,7 @@ static GdkPixbuf * _pidgin_blist_get_cached_emblem(gchar *path) { g_object_ref(pb); g_free(path); } else { - pb = gdk_pixbuf_new_from_file(path, NULL); + pb = pidgin_pixbuf_new_from_file(path); if (pb != NULL) { /* We don't want to own a ref to the pixbuf, but we need to keep clean up. */ /* I'm not sure if it would be better to just keep our ref and not let the emblem ever be destroyed */ diff --git a/pidgin/gtkconv.c b/pidgin/gtkconv.c index e74ab730da..0dd9dca2be 100644 --- a/pidgin/gtkconv.c +++ b/pidgin/gtkconv.c @@ -6392,8 +6392,8 @@ pidgin_conv_custom_smiley_write(PurpleConversation *conv, const char *smile, { PidginConversation *gtkconv; GtkIMHtmlSmiley *smiley; - GdkPixbufLoader *loader; const char *sml; + GError *error = NULL; sml = purple_account_get_protocol_name(conv->account); gtkconv = PIDGIN_CONVERSATION(conv); @@ -6406,11 +6406,24 @@ pidgin_conv_custom_smiley_write(PurpleConversation *conv, const char *smile, g_memmove((guchar *)smiley->data + smiley->datasize, data, size); smiley->datasize += size; - loader = smiley->loader; - if (!loader) + if (!smiley->loader) return; - gdk_pixbuf_loader_write(loader, data, size, NULL); + if (!gdk_pixbuf_loader_write(smiley->loader, data, size, &error) || error) { + purple_debug_warning("gtkconv", "gdk_pixbuf_loader_write() " + "failed with size=%zu: %s\n", size, + error ? error->message : "(no error message)"); + if (error) + g_error_free(error); + /* We must stop using the GdkPixbufLoader because trying to load + certain invalid GIFs with at least gdk-pixbuf 2.23.3 can return + a GdkPixbuf that will cause some operations (like + gdk_pixbuf_scale_simple()) to consume memory in an infinite loop. + But we also don't want to set smiley->loader to NULL because our + code might expect it to be set. So create a new loader. */ + g_object_unref(G_OBJECT(smiley->loader)); + smiley->loader = gdk_pixbuf_loader_new(); + } } static void @@ -6418,8 +6431,8 @@ pidgin_conv_custom_smiley_close(PurpleConversation *conv, const char *smile) { PidginConversation *gtkconv; GtkIMHtmlSmiley *smiley; - GdkPixbufLoader *loader; const char *sml; + GError *error = NULL; g_return_if_fail(conv != NULL); g_return_if_fail(smile != NULL); @@ -6431,17 +6444,27 @@ pidgin_conv_custom_smiley_close(PurpleConversation *conv, const char *smile) if (!smiley) return; - loader = smiley->loader; - - if (!loader) + if (!smiley->loader) return; - - purple_debug_info("gtkconv", "About to close the smiley pixbuf\n"); - gdk_pixbuf_loader_close(loader, NULL); - + if (!gdk_pixbuf_loader_close(smiley->loader, &error) || error) { + purple_debug_warning("gtkconv", "gdk_pixbuf_loader_close() " + "failed: %s\n", + error ? error->message : "(no error message)"); + if (error) + g_error_free(error); + /* We must stop using the GdkPixbufLoader because if we tried to + load certain invalid GIFs with all current versions of GDK (as + of 2011-06-15) then it's possible the loader will contain data + that could cause some operations (like gdk_pixbuf_scale_simple()) + to consume memory in an infinite loop. But we also don't want + to set smiley->loader to NULL because our code might expect it + to be set. So create a new loader. */ + g_object_unref(G_OBJECT(smiley->loader)); + smiley->loader = gdk_pixbuf_loader_new(); + } } static void @@ -6941,10 +6964,6 @@ pidgin_conv_update_buddy_icon(PurpleConversation *conv) PurpleBuddy *buddy; - GdkPixbufLoader *loader; - GdkPixbufAnimation *anim; - GError *err = NULL; - PurpleStoredImage *custom_img = NULL; gconstpointer data = NULL; size_t len; @@ -7022,7 +7041,6 @@ pidgin_conv_update_buddy_icon(PurpleConversation *conv) if (data == NULL) { icon = purple_conv_im_get_icon(PURPLE_CONV_IM(conv)); - if (icon == NULL) { gtk_widget_set_size_request(gtkconv->u.im->icon_container, @@ -7031,7 +7049,6 @@ pidgin_conv_update_buddy_icon(PurpleConversation *conv) } data = purple_buddy_icon_get_data(icon, &len); - if (data == NULL) { gtk_widget_set_size_request(gtkconv->u.im->icon_container, @@ -7040,25 +7057,13 @@ pidgin_conv_update_buddy_icon(PurpleConversation *conv) } } - loader = gdk_pixbuf_loader_new(); - gdk_pixbuf_loader_write(loader, data, len, NULL); - gdk_pixbuf_loader_close(loader, &err); - + gtkconv->u.im->anim = pidgin_pixbuf_anim_from_data(data, len); purple_imgstore_unref(custom_img); - anim = gdk_pixbuf_loader_get_animation(loader); - if (anim) - g_object_ref(G_OBJECT(anim)); - g_object_unref(loader); - - if (!anim) + if (!gtkconv->u.im->anim) { + purple_debug_error("gtkconv", "Couldn't load icon for conv %s\n", + purple_conversation_get_name(conv)); return; - gtkconv->u.im->anim = anim; - - if (err) { - purple_debug(PURPLE_DEBUG_ERROR, "gtkconv", - "Buddy icon error: %s\n", err->message); - g_error_free(err); } if (gdk_pixbuf_animation_is_static_image(gtkconv->u.im->anim)) { diff --git a/pidgin/gtkdialogs.c b/pidgin/gtkdialogs.c index da6da82b2d..01d964b74b 100644 --- a/pidgin/gtkdialogs.c +++ b/pidgin/gtkdialogs.c @@ -433,7 +433,7 @@ pidgin_build_help_dialog(const char *title, const char *role, GString *string) /* Generate a logo with a version number */ filename = g_build_filename(DATADIR, "pixmaps", "pidgin", "logo.png", NULL); - pixbuf = gdk_pixbuf_new_from_file(filename, NULL); + pixbuf = pidgin_pixbuf_new_from_file(filename); g_free(filename); #if 0 /* Don't versionize the logo when the logo has the version in it */ diff --git a/pidgin/gtkft.c b/pidgin/gtkft.c index 17324714f9..4c1bc658ea 100644 --- a/pidgin/gtkft.c +++ b/pidgin/gtkft.c @@ -1149,8 +1149,8 @@ pidgin_xfer_add_thumbnail(PurpleXfer *xfer, const gchar *formats) if (purple_xfer_get_size(xfer) <= PIDGIN_XFER_MAX_SIZE_IMAGE_THUMBNAIL) { GdkPixbuf *thumbnail = - gdk_pixbuf_new_from_file_at_size( - purple_xfer_get_local_filename(xfer), 128, 128, NULL); + pidgin_pixbuf_new_from_file_at_size( + purple_xfer_get_local_filename(xfer), 128, 128); if (thumbnail) { gchar **formats_split = g_strsplit(formats, ",", 0); diff --git a/pidgin/gtkimhtml.c b/pidgin/gtkimhtml.c index 44be7c291c..d74407fe2a 100644 --- a/pidgin/gtkimhtml.c +++ b/pidgin/gtkimhtml.c @@ -5057,16 +5057,8 @@ void gtk_imhtml_insert_image_at_iter(GtkIMHtml *imhtml, int id, GtkTextIter *ite data = imhtml->funcs->image_get_data(image); len = imhtml->funcs->image_get_size(image); - - if (data && len) { - GdkPixbufLoader *loader = gdk_pixbuf_loader_new(); - gdk_pixbuf_loader_write(loader, data, len, NULL); - gdk_pixbuf_loader_close(loader, NULL); - anim = gdk_pixbuf_loader_get_animation(loader); - if (anim) - g_object_ref(G_OBJECT(anim)); - g_object_unref(G_OBJECT(loader)); - } + if (data && len) + anim = pidgin_pixbuf_anim_from_data(data, len); } diff --git a/pidgin/gtkmain.c b/pidgin/gtkmain.c index 24871a2c09..0fb2a7a393 100644 --- a/pidgin/gtkmain.c +++ b/pidgin/gtkmain.c @@ -270,7 +270,7 @@ ui_main(void) /* use the nice PNG icon for all the windows */ for(i=0; iicon ? gdk_pixbuf_new_from_file(theme->icon, NULL) : NULL); + pixbuf = (theme->icon ? pidgin_pixbuf_new_from_file(theme->icon) : NULL); gtk_list_store_set(prefs_smiley_themes, &iter, 0, pixbuf, @@ -452,7 +452,7 @@ prefs_themes_sort(PurpleTheme *theme) image_full = purple_theme_get_image_full(theme); if (image_full != NULL){ - pixbuf = gdk_pixbuf_new_from_file_at_scale(image_full, PREFS_OPTIMAL_ICON_SIZE, PREFS_OPTIMAL_ICON_SIZE, TRUE, NULL); + pixbuf = pidgin_pixbuf_new_from_file_at_scale(image_full, PREFS_OPTIMAL_ICON_SIZE, PREFS_OPTIMAL_ICON_SIZE, TRUE); g_free(image_full); } else pixbuf = NULL; @@ -473,7 +473,7 @@ prefs_themes_sort(PurpleTheme *theme) image_full = purple_theme_get_image_full(theme); if (image_full != NULL){ - pixbuf = gdk_pixbuf_new_from_file_at_scale(image_full, PREFS_OPTIMAL_ICON_SIZE, PREFS_OPTIMAL_ICON_SIZE, TRUE, NULL); + pixbuf = pidgin_pixbuf_new_from_file_at_scale(image_full, PREFS_OPTIMAL_ICON_SIZE, PREFS_OPTIMAL_ICON_SIZE, TRUE); g_free(image_full); } else pixbuf = NULL; @@ -529,7 +529,7 @@ prefs_themes_refresh(void) purple_theme_manager_refresh(); tmp = g_build_filename(DATADIR, "icons", "hicolor", "32x32", "apps", "pidgin.png", NULL); - pixbuf = gdk_pixbuf_new_from_file_at_scale(tmp, PREFS_OPTIMAL_ICON_SIZE, PREFS_OPTIMAL_ICON_SIZE, TRUE, NULL); + pixbuf = pidgin_pixbuf_new_from_file_at_scale(tmp, PREFS_OPTIMAL_ICON_SIZE, PREFS_OPTIMAL_ICON_SIZE, TRUE); g_free(tmp); /* sound themes */ diff --git a/pidgin/gtkrequest.c b/pidgin/gtkrequest.c index 83f12e9542..0ab41c80ad 100644 --- a/pidgin/gtkrequest.c +++ b/pidgin/gtkrequest.c @@ -653,35 +653,30 @@ pidgin_request_action_with_icon(const char *title, const char *primary, /* Dialog icon. */ if (icon_data) { - GdkPixbufLoader *loader = gdk_pixbuf_loader_new(); - GdkPixbuf *pixbuf = NULL; - if (gdk_pixbuf_loader_write(loader, icon_data, icon_size, NULL)) { - pixbuf = gdk_pixbuf_loader_get_pixbuf(loader); - if (pixbuf) { - /* scale the image if it is too large */ - int width = gdk_pixbuf_get_width(pixbuf); - int height = gdk_pixbuf_get_height(pixbuf); - if (width > 128 || height > 128) { - int scaled_width = width > height ? 128 : (128 * width) / height; - int scaled_height = height > width ? 128 : (128 * height) / width; - GdkPixbuf *scaled = - gdk_pixbuf_scale_simple(pixbuf, scaled_width, scaled_height, - GDK_INTERP_BILINEAR); - - purple_debug_info("pidgin", - "dialog icon was too large, scale it down\n"); - if (scaled) { - g_object_unref(pixbuf); - pixbuf = scaled; - } + GdkPixbuf *pixbuf = pidgin_pixbuf_from_data(icon_data, icon_size); + if (pixbuf) { + /* scale the image if it is too large */ + int width = gdk_pixbuf_get_width(pixbuf); + int height = gdk_pixbuf_get_height(pixbuf); + if (width > 128 || height > 128) { + int scaled_width = width > height ? 128 : (128 * width) / height; + int scaled_height = height > width ? 128 : (128 * height) / width; + GdkPixbuf *scaled = + gdk_pixbuf_scale_simple(pixbuf, scaled_width, scaled_height, + GDK_INTERP_BILINEAR); + + purple_debug_info("pidgin", + "dialog icon was too large, scaled it down\n"); + if (scaled) { + g_object_unref(pixbuf); + pixbuf = scaled; } - img = gtk_image_new_from_pixbuf(pixbuf); } + img = gtk_image_new_from_pixbuf(pixbuf); + g_object_unref(pixbuf); } else { purple_debug_info("pidgin", "failed to parse dialog icon\n"); } - gdk_pixbuf_loader_close(loader, NULL); - g_object_unref(loader); } if (!img) { @@ -1016,22 +1011,17 @@ create_image_field(PurpleRequestField *field) { GtkWidget *widget; GdkPixbuf *buf, *scale; - GdkPixbufLoader *loader; - loader = gdk_pixbuf_loader_new(); - gdk_pixbuf_loader_write(loader, - (const guchar *)purple_request_field_image_get_buffer(field), - purple_request_field_image_get_size(field), - NULL); - gdk_pixbuf_loader_close(loader, NULL); - buf = gdk_pixbuf_loader_get_pixbuf(loader); + buf = pidgin_pixbuf_from_data( + (const guchar *)purple_request_field_image_get_buffer(field), + purple_request_field_image_get_size(field)); scale = gdk_pixbuf_scale_simple(buf, purple_request_field_image_get_scale_x(field) * gdk_pixbuf_get_width(buf), purple_request_field_image_get_scale_y(field) * gdk_pixbuf_get_height(buf), GDK_INTERP_BILINEAR); widget = gtk_image_new_from_pixbuf(scale); - g_object_unref(G_OBJECT(loader)); + g_object_unref(G_OBJECT(buf)); g_object_unref(G_OBJECT(scale)); return widget; @@ -1132,7 +1122,7 @@ create_list_field(PurpleRequestField *field) GdkPixbuf* pixbuf = NULL; if (icon_path) - pixbuf = gdk_pixbuf_new_from_file(icon_path, NULL); + pixbuf = pidgin_pixbuf_new_from_file(icon_path); gtk_list_store_set(store, &iter, 0, purple_request_field_list_get_data(field, text), diff --git a/pidgin/gtksmiley.c b/pidgin/gtksmiley.c index 9d6c8c20c1..2ea41edc14 100644 --- a/pidgin/gtksmiley.c +++ b/pidgin/gtksmiley.c @@ -332,7 +332,7 @@ static void do_add_file_cb(const char *filename, gpointer data) g_free(s->filename); s->filename = g_strdup(filename); - pixbuf = gdk_pixbuf_new_from_file_at_scale(filename, 64, 64, FALSE, NULL); + pixbuf = pidgin_pixbuf_new_from_file_at_scale(filename, 64, 64, FALSE); gtk_image_set_from_pixbuf(GTK_IMAGE(s->smiley_image), pixbuf); if (pixbuf) g_object_unref(G_OBJECT(pixbuf)); @@ -690,7 +690,6 @@ smiley_got_url(PurpleUtilFetchUrlData *url_data, gpointer user_data, FILE *f; gchar *path; size_t wc; - GError *err = NULL; PidginSmiley *ps; GdkPixbuf *image; @@ -709,13 +708,11 @@ smiley_got_url(PurpleUtilFetchUrlData *url_data, gpointer user_data, } fclose(f); - image = gdk_pixbuf_new_from_file(path, &err); + image = pidgin_pixbuf_new_from_file(path); g_unlink(path); g_free(path); - if (err) { - g_error_free(err); + if (!image) return; - } ps = pidgin_smiley_edit(dialog->window, NULL); pidgin_smiley_editor_set_image(ps, image); diff --git a/pidgin/gtkstatusbox.c b/pidgin/gtkstatusbox.c index 79ad9fb4fb..ff75b29c19 100644 --- a/pidgin/gtkstatusbox.c +++ b/pidgin/gtkstatusbox.c @@ -2225,22 +2225,45 @@ pidgin_status_box_redisplay_buddy_icon(PidginStatusBox *status_box) if (status_box->buddy_icon_img != NULL) { - GdkPixbuf *buf, *scale; - int scale_width, scale_height; - GdkPixbufLoader *loader = gdk_pixbuf_loader_new(); + GdkPixbufLoader *loader; + GError *error = NULL; + + loader = gdk_pixbuf_loader_new(); + g_signal_connect(G_OBJECT(loader), "size-prepared", G_CALLBACK(pixbuf_size_prepared_cb), NULL); - gdk_pixbuf_loader_write(loader, purple_imgstore_get_data(status_box->buddy_icon_img), - purple_imgstore_get_size(status_box->buddy_icon_img), NULL); - gdk_pixbuf_loader_close(loader, NULL); - buf = gdk_pixbuf_loader_get_pixbuf(loader); - scale_width = gdk_pixbuf_get_width(buf); - scale_height = gdk_pixbuf_get_height(buf); - scale = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, scale_width, scale_height); - gdk_pixbuf_fill(scale, 0x00000000); - gdk_pixbuf_copy_area(buf, 0, 0, scale_width, scale_height, scale, 0, 0); - if (pidgin_gdk_pixbuf_is_opaque(scale)) - pidgin_gdk_pixbuf_make_round(scale); - status_box->buddy_icon = scale; + if (!gdk_pixbuf_loader_write(loader, + purple_imgstore_get_data(status_box->buddy_icon_img), + purple_imgstore_get_size(status_box->buddy_icon_img), + &error) || error) + { + purple_debug_warning("gtkstatusbox", "gdk_pixbuf_loader_write() " + "failed with size=%zu: %s\n", + purple_imgstore_get_size(status_box->buddy_icon_img), + error ? error->message : "(no error message)"); + if (error) + g_error_free(error); + } else if (!gdk_pixbuf_loader_close(loader, &error) || error) { + purple_debug_warning("gtkstatusbox", "gdk_pixbuf_loader_close() " + "failed for image of size %zu: %s\n", + purple_imgstore_get_size(status_box->buddy_icon_img), + error ? error->message : "(no error message)"); + if (error) + g_error_free(error); + } else { + GdkPixbuf *buf, *scale; + int scale_width, scale_height; + + buf = gdk_pixbuf_loader_get_pixbuf(loader); + scale_width = gdk_pixbuf_get_width(buf); + scale_height = gdk_pixbuf_get_height(buf); + scale = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, scale_width, scale_height); + gdk_pixbuf_fill(scale, 0x00000000); + gdk_pixbuf_copy_area(buf, 0, 0, scale_width, scale_height, scale, 0, 0); + if (pidgin_gdk_pixbuf_is_opaque(scale)) + pidgin_gdk_pixbuf_make_round(scale); + status_box->buddy_icon = scale; + } + g_object_unref(loader); } diff --git a/pidgin/gtkutils.c b/pidgin/gtkutils.c index b1b1e20356..d4aadf82e8 100644 --- a/pidgin/gtkutils.c +++ b/pidgin/gtkutils.c @@ -615,7 +615,7 @@ pidgin_create_prpl_icon_from_prpl(PurplePlugin *prpl, PidginPrplIconSize size, P tmp, NULL); g_free(tmp); - pixbuf = gdk_pixbuf_new_from_file(filename, NULL); + pixbuf = pidgin_pixbuf_new_from_file(filename); g_free(filename); return pixbuf; @@ -704,7 +704,7 @@ create_protocols_menu(const char *default_proto_id) "16", "google-talk.png", NULL); GtkWidget *item; - pixbuf = gdk_pixbuf_new_from_file(filename, NULL); + pixbuf = pidgin_pixbuf_new_from_file(filename); g_free(filename); gtk_menu_shell_append(GTK_MENU_SHELL(aop_menu->menu), @@ -723,7 +723,7 @@ create_protocols_menu(const char *default_proto_id) "16", "facebook.png", NULL); GtkWidget *item; - pixbuf = gdk_pixbuf_new_from_file(filename, NULL); + pixbuf = pidgin_pixbuf_new_from_file(filename); g_free(filename); gtk_menu_shell_append(GTK_MENU_SHELL(aop_menu->menu), @@ -1593,7 +1593,7 @@ pidgin_dnd_file_manage(GtkSelectionData *sd, PurpleAccount *account, const char } /* Are we dealing with an image? */ - pb = gdk_pixbuf_new_from_file(filename, NULL); + pb = pidgin_pixbuf_new_from_file(filename); if (pb) { _DndData *data = g_malloc(sizeof(_DndData)); gboolean ft = FALSE, im = FALSE; @@ -2265,7 +2265,7 @@ icon_preview_change_cb(GtkFileChooser *widget, struct _icon_chooser *dialog) filename = gtk_file_chooser_get_preview_filename( GTK_FILE_CHOOSER(dialog->icon_filesel)); - if (!filename || g_stat(filename, &st) || !(pixbuf = gdk_pixbuf_new_from_file(filename, NULL))) + if (!filename || g_stat(filename, &st) || !(pixbuf = pidgin_pixbuf_new_from_file(filename))) { gtk_image_set_from_pixbuf(GTK_IMAGE(dialog->icon_preview), NULL); gtk_label_set_markup(GTK_LABEL(dialog->icon_text), ""); @@ -3086,17 +3086,134 @@ gboolean pidgin_auto_parent_window(GtkWidget *widget) #endif } -GdkPixbuf * pidgin_pixbuf_from_imgstore(PurpleStoredImage *image) +static GObject *pidgin_pixbuf_from_data_helper(const guchar *buf, gsize count, gboolean animated) +{ + GObject *pixbuf; + GdkPixbufLoader *loader; + GError *error = NULL; + + loader = gdk_pixbuf_loader_new(); + + if (!gdk_pixbuf_loader_write(loader, buf, count, &error) || error) { + purple_debug_warning("gtkutils", "gdk_pixbuf_loader_write() " + "failed with size=%zu: %s\n", count, + error ? error->message : "(no error message)"); + if (error) + g_error_free(error); + g_object_unref(G_OBJECT(loader)); + return NULL; + } + + if (!gdk_pixbuf_loader_close(loader, &error) || error) { + purple_debug_warning("gtkutils", "gdk_pixbuf_loader_close() " + "failed for image of size %zu: %s\n", count, + error ? error->message : "(no error message)"); + if (error) + g_error_free(error); + g_object_unref(G_OBJECT(loader)); + return NULL; + } + + if (animated) + pixbuf = G_OBJECT(gdk_pixbuf_loader_get_animation(loader)); + else + pixbuf = G_OBJECT(gdk_pixbuf_loader_get_pixbuf(loader)); + if (!pixbuf) { + purple_debug_warning("gtkutils", "%s() returned NULL for image " + "of size %zu\n", + animated ? "gdk_pixbuf_loader_get_animation" + : "gdk_pixbuf_loader_get_pixbuf", count); + g_object_unref(G_OBJECT(loader)); + return NULL; + } + + g_object_ref(pixbuf); + g_object_unref(G_OBJECT(loader)); + + return pixbuf; +} + +GdkPixbuf *pidgin_pixbuf_from_data(const guchar *buf, gsize count) +{ + return GDK_PIXBUF(pidgin_pixbuf_from_data_helper(buf, count, FALSE)); +} + +GdkPixbufAnimation *pidgin_pixbuf_anim_from_data(const guchar *buf, gsize count) +{ + return GDK_PIXBUF_ANIMATION(pidgin_pixbuf_from_data_helper(buf, count, TRUE)); +} + +GdkPixbuf *pidgin_pixbuf_from_imgstore(PurpleStoredImage *image) +{ + return pidgin_pixbuf_from_data(purple_imgstore_get_data(image), + purple_imgstore_get_size(image)); +} + +GdkPixbuf *pidgin_pixbuf_new_from_file(const gchar *filename) +{ + GdkPixbuf *pixbuf; + GError *error = NULL; + + pixbuf = gdk_pixbuf_new_from_file(filename, &error); + if (!pixbuf || error) { + purple_debug_warning("gtkutils", "gdk_pixbuf_new_from_file() " + "returned %s for file %s: %s\n", + pixbuf ? "something" : "nothing", + filename, + error ? error->message : "(no error message)"); + if (error) + g_error_free(error); + if (pixbuf) + g_object_unref(G_OBJECT(pixbuf)); + return NULL; + } + + return pixbuf; +} + +GdkPixbuf *pidgin_pixbuf_new_from_file_at_size(const char *filename, int width, int height) +{ + GdkPixbuf *pixbuf; + GError *error = NULL; + + pixbuf = gdk_pixbuf_new_from_file_at_size(filename, + width, height, &error); + if (!pixbuf || error) { + purple_debug_warning("gtkutils", "gdk_pixbuf_new_from_file_at_size() " + "returned %s for file %s: %s\n", + pixbuf ? "something" : "nothing", + filename, + error ? error->message : "(no error message)"); + if (error) + g_error_free(error); + if (pixbuf) + g_object_unref(G_OBJECT(pixbuf)); + return NULL; + } + + return pixbuf; +} + +GdkPixbuf *pidgin_pixbuf_new_from_file_at_scale(const char *filename, int width, int height, gboolean preserve_aspect_ratio) { GdkPixbuf *pixbuf; - GdkPixbufLoader *loader = gdk_pixbuf_loader_new(); - gdk_pixbuf_loader_write(loader, purple_imgstore_get_data(image), - purple_imgstore_get_size(image), NULL); - gdk_pixbuf_loader_close(loader, NULL); - pixbuf = gdk_pixbuf_loader_get_pixbuf(loader); - if (pixbuf) - g_object_ref(pixbuf); - g_object_unref(loader); + GError *error = NULL; + + pixbuf = gdk_pixbuf_new_from_file_at_scale(filename, + width, height, preserve_aspect_ratio, &error); + if (!pixbuf || error) { + purple_debug_warning("gtkutils", "gdk_pixbuf_new_from_file_at_scale() " + "returned %s for file %s: %s\n", + pixbuf ? "something" : "nothing", + filename, + error ? error->message : "(no error message)"); + if (error) + g_error_free(error); + if (pixbuf) + g_object_unref(G_OBJECT(pixbuf)); + return NULL; + } + return pixbuf; } diff --git a/pidgin/gtkutils.h b/pidgin/gtkutils.h index cd048728c4..716ec6de81 100644 --- a/pidgin/gtkutils.h +++ b/pidgin/gtkutils.h @@ -834,6 +834,32 @@ gboolean pidgin_auto_parent_window(GtkWidget *window); GtkWidget *pidgin_add_widget_to_vbox(GtkBox *vbox, const char *widget_label, GtkSizeGroup *sg, GtkWidget *widget, gboolean expand, GtkWidget **p_label); /** + * Create a GdkPixbuf from a chunk of image data. + * + * @param buf The raw binary image data. + * @param count The length of buf in bytes. + * + * @return A GdkPixbuf created from the image data, or NULL if + * there was an error parsing the data. + * + * @since 2.9.0 + */ +GdkPixbuf *pidgin_pixbuf_from_data(const guchar *buf, gsize count); + +/** + * Create a GdkPixbufAnimation from a chunk of image data. + * + * @param buf The raw binary image data. + * @param count The length of buf in bytes. + * + * @return A GdkPixbufAnimation created from the image data, or NULL if + * there was an error parsing the data. + * + * @since 2.9.0 + */ +GdkPixbufAnimation *pidgin_pixbuf_anim_from_data(const guchar *buf, gsize count); + +/** * Create a GdkPixbuf from a PurpleStoredImage. * * @param image A PurpleStoredImage. @@ -845,6 +871,86 @@ GtkWidget *pidgin_add_widget_to_vbox(GtkBox *vbox, const char *widget_label, Gtk GdkPixbuf *pidgin_pixbuf_from_imgstore(PurpleStoredImage *image); /** + * Helper function that calls gdk_pixbuf_new_from_file() and checks both + * the return code and the GError and returns NULL if either one failed. + * + * The gdk-pixbuf documentation implies that it is sufficient to check + * the return value of gdk_pixbuf_new_from_file() to determine + * whether the image was able to be loaded. However, this is not the case + * with gdk-pixbuf 2.23.3 and probably many earlier versions. In some + * cases a GdkPixbuf object is returned that will cause some operations + * (like gdk_pixbuf_scale_simple()) to rapidly consume memory in an + * infinite loop. + * + * This function shouldn't be necessary once Pidgin requires a version of + * gdk-pixbuf where the aforementioned bug is fixed. However, it might be + * nice to keep this function around for the debug message that it logs. + * + * @param filename Name of file to load, in the GLib file name encoding + * + * @return The GdkPixbuf if successful. Otherwise NULL is returned and + * a warning is logged. + * + * @since 2.9.0 + */ +GdkPixbuf *pidgin_pixbuf_new_from_file(const char *filename); + +/** + * Helper function that calls gdk_pixbuf_new_from_file_at_size() and checks + * both the return code and the GError and returns NULL if either one failed. + * + * The gdk-pixbuf documentation implies that it is sufficient to check + * the return value of gdk_pixbuf_new_from_file_at_size() to determine + * whether the image was able to be loaded. However, this is not the case + * with gdk-pixbuf 2.23.3 and probably many earlier versions. In some + * cases a GdkPixbuf object is returned that will cause some operations + * (like gdk_pixbuf_scale_simple()) to rapidly consume memory in an + * infinite loop. + * + * This function shouldn't be necessary once Pidgin requires a version of + * gdk-pixbuf where the aforementioned bug is fixed. However, it might be + * nice to keep this function around for the debug message that it logs. + * + * @param filename Name of file to load, in the GLib file name encoding + * @param width The width the image should have or -1 to not constrain the width + * @param height The height the image should have or -1 to not constrain the height + * + * @return The GdkPixbuf if successful. Otherwise NULL is returned and + * a warning is logged. + * + * @since 2.9.0 + */ +GdkPixbuf *pidgin_pixbuf_new_from_file_at_size(const char *filename, int width, int height); + +/** + * Helper function that calls gdk_pixbuf_new_from_file_at_scale() and checks + * both the return code and the GError and returns NULL if either one failed. + * + * The gdk-pixbuf documentation implies that it is sufficient to check + * the return value of gdk_pixbuf_new_from_file_at_scale() to determine + * whether the image was able to be loaded. However, this is not the case + * with gdk-pixbuf 2.23.3 and probably many earlier versions. In some + * cases a GdkPixbuf object is returned that will cause some operations + * (like gdk_pixbuf_scale_simple()) to rapidly consume memory in an + * infinite loop. + * + * This function shouldn't be necessary once Pidgin requires a version of + * gdk-pixbuf where the aforementioned bug is fixed. However, it might be + * nice to keep this function around for the debug message that it logs. + * + * @param filename Name of file to load, in the GLib file name encoding + * @param width The width the image should have or -1 to not constrain the width + * @param height The height the image should have or -1 to not constrain the height + * @param preserve_aspect_ratio TRUE to preserve the image's aspect ratio + * + * @return The GdkPixbuf if successful. Otherwise NULL is returned and + * a warning is logged. + * + * @since 2.9.0 + */ +GdkPixbuf *pidgin_pixbuf_new_from_file_at_scale(const char *filename, int width, int height, gboolean preserve_aspect_ratio); + +/** * Add scrollbars to a widget * @param widget The child widget * @hscrollbar_policy Horizontal scrolling policy -- 2.11.4.GIT