diff options
| author | Jasmine Hassan <[email protected]> | 2012-12-17 08:53:21 +0200 |
|---|---|---|
| committer | Jasmine Hassan <[email protected]> | 2012-12-17 09:17:16 +0200 |
| commit | 70bcfe5a43b9699fe64a0439d0fb6b7526bd0cfd (patch) | |
| tree | 1229998ebacdc03693ea00f0cf698159b8ce9fce /libmate-desktop/mate-bg.c | |
| parent | 4e5e3ff15fb3547c6769e698932cd53d4b90ea50 (diff) | |
| download | mate-desktop-70bcfe5a43b9699fe64a0439d0fb6b7526bd0cfd.tar.bz2 mate-desktop-70bcfe5a43b9699fe64a0439d0fb6b7526bd0cfd.tar.xz | |
[mate-bg] Cache resized wallpaper to help CPU at startup
Resized and transformed wallpapers are stored in ~/.cache/wallpaper/.
The cache is refreshed for each new current wallpaper depending on the
resolution or transformation, and each time the source image is
refreshed.
The source image format is preserved.
https://bugzilla.gnome.org/show_bug.cgi?id=608419
Adapted from:
http://git.gnome.org/browse/gnome-desktop/commit/?id=63c36f78980a4982d364e37e6c1e6219af2ecd32
http://git.gnome.org/browse/gnome-desktop/commit/?id=ae7a732da1bdced139b109a453fac78c2b9f2fc6
http://git.gnome.org/browse/gnome-desktop/commit/?id=43e13d709d8d35b3484e8b2aaf126f1d91fae7ad
Diffstat (limited to 'libmate-desktop/mate-bg.c')
| -rw-r--r-- | libmate-desktop/mate-bg.c | 318 |
1 files changed, 250 insertions, 68 deletions
diff --git a/libmate-desktop/mate-bg.c b/libmate-desktop/mate-bg.c index 5d55c66..08ed5a2 100644 --- a/libmate-desktop/mate-bg.c +++ b/libmate-desktop/mate-bg.c @@ -34,6 +34,7 @@ Authors: Soren Sandmann <[email protected]> #include <stdarg.h> #include <stdlib.h> +#include <glib/gstdio.h> #include <gio/gio.h> #include <gdk/gdkx.h> @@ -175,8 +176,9 @@ static gboolean get_thumb_annotations (GdkPixbuf *thumb, /* Cache */ static GdkPixbuf *get_pixbuf_for_size (MateBG *bg, - int width, - int height); + gint num_monitor, + int width, + int height); static void clear_cache (MateBG *bg); static gboolean is_different (MateBG *bg, const char *filename); @@ -621,12 +623,147 @@ mate_bg_get_filename (MateBG *bg) return bg->filename; } +static inline gchar * +get_wallpaper_cache_dir () +{ + return g_build_filename (g_get_user_cache_dir(), "wallpaper", NULL); +} + +static inline gchar * +get_wallpaper_cache_prefix_name (gint num_monitor, + MateBGPlacement placement, + gint width, + gint height) +{ + return g_strdup_printf ("%i_%i_%i_%i", num_monitor, (gint) placement, width, height); +} + +static char * +get_wallpaper_cache_filename (const char *filename, + gint num_monitor, + MateBGPlacement placement, + gint width, + gint height) +{ + gchar *cache_filename; + gchar *cache_prefix_name; + gchar *md5_filename; + gchar *cache_basename; + gchar *cache_dir; + + md5_filename = g_compute_checksum_for_data (G_CHECKSUM_MD5, (const guchar *) filename, + strlen (filename)); + cache_prefix_name = get_wallpaper_cache_prefix_name (num_monitor, placement, width, height); + cache_basename = g_strdup_printf ("%s_%s", cache_prefix_name, md5_filename); + cache_dir = get_wallpaper_cache_dir (); + cache_filename = g_build_filename (cache_dir, cache_basename, NULL); + + g_free (cache_prefix_name); + g_free (md5_filename); + g_free (cache_basename); + g_free (cache_dir); + + return cache_filename; +} + +static void +cleanup_cache_for_monitor (gchar *cache_dir, + gint num_monitor) +{ + GDir *g_cache_dir; + gchar *monitor_prefix; + const gchar *file; + + g_cache_dir = g_dir_open (cache_dir, 0, NULL); + monitor_prefix = g_strdup_printf ("%i_", num_monitor); + + file = g_dir_read_name (g_cache_dir); + while (file != NULL) { + gchar *path = g_build_filename (cache_dir, file, NULL); + + /* purge files with same monitor id */ + if (g_str_has_prefix (file, monitor_prefix) && + g_file_test (path, G_FILE_TEST_IS_REGULAR)) + g_unlink (path); + + g_free (path); + + file = g_dir_read_name (g_cache_dir); + } + + g_free (monitor_prefix); + g_dir_close (g_cache_dir); +} + +static gboolean +cache_file_is_valid (const char *filename, + const char *cache_filename) +{ + time_t mtime; + time_t cache_mtime; + + if (!g_file_test (cache_filename, G_FILE_TEST_IS_REGULAR)) + return FALSE; + + mtime = get_mtime (filename); + cache_mtime = get_mtime (cache_filename); + + return (mtime < cache_mtime); +} + +static void +refresh_cache_file (MateBG *bg, + GdkPixbuf *new_pixbuf, + gint num_monitor, + gint width, + gint height) +{ + gchar *cache_filename; + gchar *cache_dir; + GdkPixbufFormat *format; + gchar *format_name; + + if ((num_monitor == -1) || (width <= 300) || (height <= 300)) + return; + + cache_filename = get_wallpaper_cache_filename (bg->filename, num_monitor, + bg->placement, width, height); + cache_dir = get_wallpaper_cache_dir (); + + /* Only refresh scaled file on disk if useful (and don't cache slideshow) */ + if (!cache_file_is_valid (bg->filename, cache_filename)) { + format = gdk_pixbuf_get_file_info (bg->filename, NULL, NULL); + + if (format != NULL) { + if (!g_file_test (cache_dir, G_FILE_TEST_IS_DIR)) { + g_mkdir_with_parents (cache_dir, 0700); + } else { + cleanup_cache_for_monitor (cache_dir, num_monitor); + } + + format_name = gdk_pixbuf_format_get_name (format); + + if (strcmp (format_name, "jpeg") == 0) + gdk_pixbuf_save (new_pixbuf, cache_filename, format_name, + NULL, "quality", "100", NULL); + else + gdk_pixbuf_save (new_pixbuf, cache_filename, format_name, + NULL, NULL); + + g_free (format_name); + } + } + + g_free (cache_filename); + g_free (cache_dir); +} + static void -file_changed (GFileMonitor *file_monitor, - GFile *child, - GFile *other_file, +file_changed (GFileMonitor *file_monitor, + GFile *child, + GFile *other_file, GFileMonitorEvent event_type, - gpointer user_data) + gpointer user_data) { MateBG *bg = MATE_BG (user_data); @@ -668,8 +805,8 @@ mate_bg_set_filename (MateBG *bg, } static void -draw_color_area (MateBG *bg, - GdkPixbuf *dest, +draw_color_area (MateBG *bg, + GdkPixbuf *dest, GdkRectangle *rect) { guint32 pixel; @@ -707,7 +844,7 @@ draw_color_area (MateBG *bg, } static void -draw_color (MateBG *bg, +draw_color (MateBG *bg, GdkPixbuf *dest, GdkScreen *screen) { @@ -721,7 +858,7 @@ draw_color (MateBG *bg, } static void -draw_color_each_monitor (MateBG *bg, +draw_color_each_monitor (MateBG *bg, GdkPixbuf *dest, GdkScreen *screen) { @@ -770,8 +907,8 @@ pixbuf_clip_to_fit (GdkPixbuf *src, } static GdkPixbuf * -get_scaled_pixbuf (MateBGPlacement placement, - GdkPixbuf *pixbuf, +get_scaled_pixbuf (MateBGPlacement placement, + GdkPixbuf *pixbuf, int width, int height, int *x, int *y, int *w, int *h) @@ -818,10 +955,11 @@ get_scaled_pixbuf (MateBGPlacement placement, static void -draw_image_area (MateBGPlacement placement, - GdkPixbuf *pixbuf, - GdkPixbuf *dest, - GdkRectangle *area) +draw_image_area (MateBG *bg, + gint num_monitor, + GdkPixbuf *pixbuf, + GdkPixbuf *dest, + GdkRectangle *area) { int dest_width = area->width; int dest_height = area->height; @@ -831,9 +969,9 @@ draw_image_area (MateBGPlacement placement, if (!pixbuf) return; - scaled = get_scaled_pixbuf (placement, pixbuf, dest_width, dest_height, &x, &y, &w, &h); + scaled = get_scaled_pixbuf (bg->placement, pixbuf, dest_width, dest_height, &x, &y, &w, &h); - switch (placement) { + switch (bg->placement) { case MATE_BG_PLACEMENT_TILED: pixbuf_tile (scaled, dest); break; @@ -851,13 +989,15 @@ draw_image_area (MateBGPlacement placement, break; } + refresh_cache_file (bg, scaled, num_monitor, dest_width, dest_height); + g_object_unref (scaled); } static void -draw_image (MateBGPlacement placement, - GdkPixbuf *pixbuf, - GdkPixbuf *dest) +draw_image_for_thumb (MateBG *bg, + GdkPixbuf *pixbuf, + GdkPixbuf *dest) { GdkRectangle rect; @@ -866,32 +1006,37 @@ draw_image (MateBGPlacement placement, rect.width = gdk_pixbuf_get_width (dest); rect.height = gdk_pixbuf_get_height (dest); - draw_image_area (placement, pixbuf, dest, &rect); + draw_image_area (bg, -1, pixbuf, dest, &rect); } static void -draw_once (MateBG *bg, +draw_once (MateBG *bg, GdkPixbuf *dest, - GdkScreen *screen) + GdkScreen *screen, + gboolean is_root) { GdkRectangle rect; GdkPixbuf *pixbuf; + gint monitor; + + /* whether we're drawing on root window or normal (Caja) window */ + monitor = (is_root) ? 0 : -1; rect.x = 0; rect.y = 0; rect.width = gdk_pixbuf_get_width (dest); rect.height = gdk_pixbuf_get_height (dest); - pixbuf = get_pixbuf_for_size (bg, rect.width, rect.height); + pixbuf = get_pixbuf_for_size (bg, monitor, rect.width, rect.height); if (pixbuf) { - draw_image_area (bg->placement, pixbuf, dest, &rect); + draw_image_area (bg, monitor, pixbuf, dest, &rect); g_object_unref (pixbuf); } } static void -draw_each_monitor (MateBG *bg, +draw_each_monitor (MateBG *bg, GdkPixbuf *dest, GdkScreen *screen) { @@ -904,9 +1049,9 @@ draw_each_monitor (MateBG *bg, gdk_screen_get_monitor_geometry (screen, monitor, &rect); - pixbuf = get_pixbuf_for_size (bg, rect.width, rect.height); + pixbuf = get_pixbuf_for_size (bg, monitor, rect.width, rect.height); if (pixbuf) { - draw_image_area (bg->placement, pixbuf, dest, &rect); + draw_image_area (bg, monitor, pixbuf, dest, &rect); g_object_unref (pixbuf); } @@ -914,10 +1059,10 @@ draw_each_monitor (MateBG *bg, } void -mate_bg_draw (MateBG *bg, +mate_bg_draw (MateBG *bg, GdkPixbuf *dest, GdkScreen *screen, - gboolean is_root) + gboolean is_root) { if (!bg) return; @@ -930,7 +1075,7 @@ mate_bg_draw (MateBG *bg, } else { draw_color (bg, dest, screen); if (bg->filename) { - draw_once (bg, dest, screen); + draw_once (bg, dest, screen, is_root); } } } @@ -1089,7 +1234,7 @@ mate_bg_is_dark (MateBG *bg, color.green = (bg->primary.green + bg->secondary.green) / 2; color.blue = (bg->primary.blue + bg->secondary.blue) / 2; } - pixbuf = get_pixbuf_for_size (bg, width, height); + pixbuf = get_pixbuf_for_size (bg, -1, width, height); if (pixbuf) { guint32 argb = pixbuf_average_value (pixbuf); guchar a = (argb >> 24) & 0xff; @@ -1256,7 +1401,7 @@ mate_bg_create_thumbnail (MateBG *bg, thumb = create_img_thumbnail (bg, factory, screen, dest_width, dest_height, -1); if (thumb) { - draw_image (bg->placement, thumb, result); + draw_image_for_thumb (bg, thumb, result); g_object_unref (thumb); } } @@ -1767,40 +1912,69 @@ file_cache_add_slide_show (MateBG *bg, } static GdkPixbuf * +load_from_cache_file (MateBG *bg, + const char *filename, + gint num_monitor, + gint best_width, + gint best_height) +{ + GdkPixbuf *pixbuf = NULL; + gchar *cache_filename; + + cache_filename = get_wallpaper_cache_filename (filename, num_monitor, bg->placement, + best_width, best_height); + + if (cache_file_is_valid (filename, cache_filename)) + pixbuf = gdk_pixbuf_new_from_file (cache_filename, NULL); + + g_free (cache_filename); + + return pixbuf; +} + +static GdkPixbuf * get_as_pixbuf_for_size (MateBG *bg, const char *filename, - int best_width, - int best_height) + gint monitor, + gint best_width, + gint best_height) { const FileCacheEntry *ent; if ((ent = file_cache_lookup (bg, PIXBUF, filename))) { return g_object_ref (ent->u.pixbuf); } else { GdkPixbufFormat *format; - GdkPixbuf *pixbuf; + GdkPixbuf *pixbuf = NULL; gchar *tmp = NULL; - /* If scalable choose maximum size */ - format = gdk_pixbuf_get_file_info (filename, NULL, NULL); - if (format != NULL) { - tmp = gdk_pixbuf_format_get_name (format); - } + /* Try to hit local cache first if relevant */ + if (monitor != -1) + pixbuf = load_from_cache_file (bg, filename, monitor, + best_width, best_height); + + if (!pixbuf) { + /* If scalable choose maximum size */ + format = gdk_pixbuf_get_file_info (filename, NULL, NULL); + if (format != NULL) + tmp = gdk_pixbuf_format_get_name (format); + + if (g_strcmp0 (tmp, "svg") == 0 && + (best_width > 0 && best_height > 0) && + (bg->placement == MATE_BG_PLACEMENT_FILL_SCREEN || + bg->placement == MATE_BG_PLACEMENT_SCALED || + bg->placement == MATE_BG_PLACEMENT_ZOOMED)) + { + pixbuf = gdk_pixbuf_new_from_file_at_size (filename, + best_width, + best_height, NULL); + } else { + pixbuf = gdk_pixbuf_new_from_file (filename, NULL); + } - if (g_strcmp0 (tmp, "svg") == 0 && - (best_width > 0 && best_height > 0) && - (bg->placement == MATE_BG_PLACEMENT_FILL_SCREEN || - bg->placement == MATE_BG_PLACEMENT_SCALED || - bg->placement == MATE_BG_PLACEMENT_ZOOMED)) - { - pixbuf = gdk_pixbuf_new_from_file_at_size (filename, - best_width, best_height, NULL); - } else { - pixbuf = gdk_pixbuf_new_from_file (filename, NULL); + if (tmp != NULL) + g_free (tmp); } - if (tmp != NULL) - g_free (tmp); - if (pixbuf) file_cache_add_pixbuf (bg, filename, pixbuf); @@ -2165,6 +2339,7 @@ find_best_size (GSList *sizes, gint width, gint height) static GdkPixbuf * get_pixbuf_for_size (MateBG *bg, + gint monitor, gint best_width, gint best_height) { @@ -2186,7 +2361,8 @@ get_pixbuf_for_size (MateBG *bg, if (!hit_cache && bg->filename) { bg->file_mtime = get_mtime (bg->filename); - bg->pixbuf_cache = get_as_pixbuf_for_size (bg, bg->filename, best_width, best_height); + bg->pixbuf_cache = get_as_pixbuf_for_size (bg, bg->filename, monitor, + best_width, best_height); time_until_next_change = G_MAXUINT; if (!bg->pixbuf_cache) { SlideShow *show = get_as_slideshow (bg, bg->filename); @@ -2200,21 +2376,27 @@ get_pixbuf_for_size (MateBG *bg, slide = get_current_slide (show, &alpha); time_until_next_change = (guint)get_slide_timeout (slide); if (slide->fixed) { - FileSize *size; - size = find_best_size (slide->file1, best_width, best_height); - bg->pixbuf_cache = get_as_pixbuf_for_size (bg, size->file, best_width, best_height); - } - else { + FileSize *size = find_best_size (slide->file1, + best_width, best_height); + bg->pixbuf_cache = + get_as_pixbuf_for_size (bg, size->file, monitor, + best_width, best_height); + } else { FileSize *size; GdkPixbuf *p1, *p2; - size = find_best_size (slide->file1, best_width, best_height); - p1 = get_as_pixbuf_for_size (bg, size->file, best_width, best_height); - size = find_best_size (slide->file2, best_width, best_height); - p2 = get_as_pixbuf_for_size (bg, size->file, best_width, best_height); - if (p1 && p2) { + size = find_best_size (slide->file1, + best_width, best_height); + p1 = get_as_pixbuf_for_size (bg, size->file, monitor, + best_width, best_height); + + size = find_best_size (slide->file2, + best_width, best_height); + p2 = get_as_pixbuf_for_size (bg, size->file, monitor, + best_width, best_height); + + if (p1 && p2) bg->pixbuf_cache = blend (p1, p2, alpha); - } if (p1) g_object_unref (p1); if (p2) @@ -3050,7 +3232,7 @@ mate_bg_create_frame_thumbnail (MateBG *bg, frame_num + skipped); if (thumb) { - draw_image (bg->placement, thumb, result); + draw_image_for_thumb (bg, thumb, result); g_object_unref (thumb); } } |