4 * Copyright (C) 2008 The Geeqie Team
8 * This software is released under the GNU General Public License (GNU GPL).
9 * Please read the included file COPYING for more information.
10 * This software comes with no warranty of any kind, use at your own risk!
18 #include "image-load.h"
20 #include "pixbuf_util.h"
21 #include "thumb_standard.h"
22 #include "ui_fileops.h"
28 static void thumb_loader_error_cb(ImageLoader *il, gpointer data);
29 static void thumb_loader_setup(ThumbLoader *tl, const gchar *path);
31 static GdkPixbuf *get_xv_thumbnail(gchar *thumb_filename, gint max_w, gint max_h);
35 *-----------------------------------------------------------------------------
36 * thumbnail routines: creation, caching, and maintenance (public)
37 *-----------------------------------------------------------------------------
40 /* Save thumbnail to disk
41 * or just mark failed thumbnail with 0 byte file (mark_failure = TRUE) */
42 static gboolean thumb_loader_save_thumbnail(ThumbLoader *tl, gboolean mark_failure)
45 gboolean success = FALSE;
48 if (!tl || !tl->fd) return FALSE;
49 if (!mark_failure && !tl->fd->thumb_pixbuf) return FALSE;
51 cache_dir = cache_get_location(CACHE_TYPE_THUMB, tl->fd->path, FALSE, &mode);
53 if (cache_ensure_dir_exists(cache_dir, mode))
57 gchar *name = g_strconcat(filename_from_path(tl->fd->path), GQ_CACHE_EXT_THUMB, NULL);
59 cache_path = g_build_filename(cache_dir, name, NULL);
62 pathl = path_from_utf8(cache_path);
66 FILE *f = fopen(pathl, "w"); ;
68 DEBUG_1("Marking thumb failure: %s", cache_path);
77 DEBUG_1("Saving thumb: %s", cache_path);
78 success = pixbuf_to_file_as_png(tl->fd->thumb_pixbuf, pathl);
84 /* set thumb time to that of source file */
86 ut.actime = ut.modtime = filetime(tl->fd->path);
94 DEBUG_1("Saving failed: %s", pathl);
106 static void thumb_loader_percent_cb(ImageLoader *il, gdouble percent, gpointer data)
108 ThumbLoader *tl = data;
110 tl->percent_done = percent;
112 if (tl->func_progress) tl->func_progress(tl, tl->data);
115 static void thumb_loader_set_fallback(ThumbLoader *tl)
117 if (tl->fd->thumb_pixbuf) g_object_unref(tl->fd->thumb_pixbuf);
118 tl->fd->thumb_pixbuf = pixbuf_fallback(tl->fd, tl->max_w, tl->max_h);
121 static void thumb_loader_done_cb(ImageLoader *il, gpointer data)
123 ThumbLoader *tl = data;
127 GdkPixbuf *rotated = NULL;
129 DEBUG_1("thumb done: %s", tl->fd->path);
131 pixbuf = image_loader_get_pixbuf(tl->il);
134 DEBUG_1("...but no pixbuf: %s", tl->fd->path);
135 thumb_loader_error_cb(tl->il, tl);
140 if (!tl->cache_hit && options->image.exif_rotate_enable)
142 if (!tl->fd->exif_orientation)
144 ExifData *exif = exif_read_fd(tl->fd);
147 if (exif && exif_get_integer(exif, "Exif.Image.Orientation", &orientation))
148 tl->fd->exif_orientation = orientation;
150 tl->fd->exif_orientation = EXIF_ORIENTATION_TOP_LEFT;
151 exif_free_fd(tl->fd, exif);
154 if (tl->fd->exif_orientation != EXIF_ORIENTATION_TOP_LEFT)
156 rotated = pixbuf_apply_orientation(pixbuf, tl->fd->exif_orientation);
161 pw = gdk_pixbuf_get_width(pixbuf);
162 ph = gdk_pixbuf_get_height(pixbuf);
164 if (tl->cache_hit && pw != tl->max_w && ph != tl->max_h)
166 /* requested thumbnail size may have changed, load original */
167 DEBUG_1("thumbnail size mismatch, regenerating: %s", tl->fd->path);
168 tl->cache_hit = FALSE;
170 thumb_loader_setup(tl, tl->fd->path);
172 g_signal_connect (G_OBJECT(tl->il), "done", (GCallback)thumb_loader_done_cb, tl);
174 if (!image_loader_start(tl->il))
176 image_loader_free(tl->il);
179 DEBUG_1("regeneration failure: %s", tl->fd->path);
180 thumb_loader_error_cb(tl->il, tl);
187 if (pw > tl->max_w || ph > tl->max_h)
191 if (((gdouble)tl->max_w / pw) < ((gdouble)tl->max_h / ph))
194 h = (gdouble)w / pw * ph;
200 w = (gdouble)h / ph * pw;
206 if (tl->fd->thumb_pixbuf) g_object_unref(tl->fd->thumb_pixbuf);
207 tl->fd->thumb_pixbuf = gdk_pixbuf_scale_simple(pixbuf, w, h, (GdkInterpType)options->thumbnails.quality);
215 if (tl->fd->thumb_pixbuf) g_object_unref(tl->fd->thumb_pixbuf);
216 tl->fd->thumb_pixbuf = pixbuf;
218 g_object_ref(tl->fd->thumb_pixbuf);
220 save = image_loader_get_shrunk(il);
223 if (rotated) g_object_unref(rotated);
226 if (tl->cache_enable && save)
228 thumb_loader_save_thumbnail(tl, FALSE);
231 if (tl->func_done) tl->func_done(tl, tl->data);
234 static void thumb_loader_error_cb(ImageLoader *il, gpointer data)
236 ThumbLoader *tl = data;
238 /* if at least some of the image is available, go to done_cb */
239 if (image_loader_get_pixbuf(tl->il) != NULL)
241 thumb_loader_done_cb(il, data);
245 DEBUG_1("thumb error: %s", tl->fd->path);
247 image_loader_free(tl->il);
250 thumb_loader_set_fallback(tl);
252 if (tl->func_error) tl->func_error(tl, tl->data);
255 static gint thumb_loader_done_delay_cb(gpointer data)
257 ThumbLoader *tl = data;
259 tl->idle_done_id = -1;
261 if (tl->func_done) tl->func_done(tl, tl->data);
266 static void thumb_loader_delay_done(ThumbLoader *tl)
268 if (tl->idle_done_id == -1) tl->idle_done_id = g_idle_add(thumb_loader_done_delay_cb, tl);
271 static void thumb_loader_setup(ThumbLoader *tl, const gchar *path)
273 FileData *fd = file_data_new_simple(path);
274 image_loader_free(tl->il);
275 tl->il = image_loader_new(fd);
277 image_loader_set_priority(tl->il, G_PRIORITY_LOW);
279 if (options->thumbnails.fast)
281 /* this will speed up jpegs by up to 3x in some cases */
282 image_loader_set_requested_size(tl->il, tl->max_w, tl->max_h);
285 g_signal_connect (G_OBJECT(tl->il), "error", (GCallback)thumb_loader_error_cb, tl);
286 if (tl->func_progress) g_signal_connect (G_OBJECT(tl->il), "percent", (GCallback)thumb_loader_percent_cb, tl);
289 void thumb_loader_set_callbacks(ThumbLoader *tl,
290 ThumbLoaderFunc func_done,
291 ThumbLoaderFunc func_error,
292 ThumbLoaderFunc func_progress,
297 if (tl->standard_loader)
299 thumb_loader_std_set_callbacks((ThumbLoaderStd *)tl,
300 (ThumbLoaderStdFunc) func_done,
301 (ThumbLoaderStdFunc) func_error,
302 (ThumbLoaderStdFunc) func_progress,
307 tl->func_done = func_done;
308 tl->func_error = func_error;
309 tl->func_progress = func_progress;
314 void thumb_loader_set_cache(ThumbLoader *tl, gint enable_cache, gint local, gint retry_failed)
318 if (tl->standard_loader)
320 thumb_loader_std_set_cache((ThumbLoaderStd *)tl, enable_cache, local, retry_failed);
324 tl->cache_enable = enable_cache;
326 tl->cache_local = local;
327 tl->cache_retry = retry_failed;
332 gint thumb_loader_start(ThumbLoader *tl, FileData *fd)
334 gchar *cache_path = NULL;
336 if (!tl) return FALSE;
338 if (tl->standard_loader)
340 return thumb_loader_std_start((ThumbLoaderStd *)tl, fd);
343 if (!tl->fd && !fd) return FALSE;
345 if (!tl->fd) tl->fd = file_data_ref(fd);
348 if (tl->cache_enable)
350 cache_path = cache_find_location(CACHE_TYPE_THUMB, tl->fd->path);
354 if (cache_time_valid(cache_path, tl->fd->path))
356 DEBUG_1("Found in cache:%s", tl->fd->path);
358 if (filesize(cache_path) == 0)
360 DEBUG_1("Broken image mark found:%s", cache_path);
362 thumb_loader_set_fallback(tl);
366 DEBUG_1("Cache location:%s", cache_path);
376 if (!cache_path && options->thumbnails.use_xvpics)
378 if (tl->fd->thumb_pixbuf) g_object_unref(tl->fd->thumb_pixbuf);
379 tl->fd->thumb_pixbuf = get_xv_thumbnail(tl->fd->path, tl->max_w, tl->max_h);
380 if (tl->fd->thumb_pixbuf)
382 thumb_loader_delay_done(tl);
389 thumb_loader_setup(tl, cache_path);
391 tl->cache_hit = TRUE;
395 thumb_loader_setup(tl, tl->fd->path);
398 g_signal_connect (G_OBJECT(tl->il), "done", (GCallback)thumb_loader_done_cb, tl);
399 if (!image_loader_start(tl->il))
401 /* try from original if cache attempt */
404 tl->cache_hit = FALSE;
405 log_printf("%s", _("Thumbnail image in cache failed to load, trying to recreate.\n"));
407 thumb_loader_setup(tl, tl->fd->path);
408 g_signal_connect (G_OBJECT(tl->il), "done", (GCallback)thumb_loader_done_cb, tl);
409 if (image_loader_start(tl->il)) return TRUE;
411 /* mark failed thumbnail in cache with 0 byte file */
412 if (tl->cache_enable)
414 thumb_loader_save_thumbnail(tl, TRUE);
417 image_loader_free(tl->il);
419 thumb_loader_set_fallback(tl);
427 gint thumb_loader_to_pixmap(ThumbLoader *tl, GdkPixmap **pixmap, GdkBitmap **mask)
429 if (!tl || !tl->pixbuf) return -1;
431 gdk_pixbuf_render_pixmap_and_mask(tl->pixbuf, pixmap, mask, 128);
433 return thumb_loader_get_space(tl);
437 GdkPixbuf *thumb_loader_get_pixbuf(ThumbLoader *tl)
441 if (tl && tl->standard_loader)
443 return thumb_loader_std_get_pixbuf((ThumbLoaderStd *)tl);
446 if (tl && tl->fd && tl->fd->thumb_pixbuf)
448 pixbuf = tl->fd->thumb_pixbuf;
449 g_object_ref(pixbuf);
453 pixbuf = pixbuf_fallback(NULL, tl->max_w, tl->max_h);
460 gint thumb_loader_get_space(ThumbLoader *tl)
464 if (tl->pixbuf) return (tl->max_w - gdk_pixbuf_get_width(tl->pixbuf));
470 ThumbLoader *thumb_loader_new(gint width, gint height)
474 /* non-std thumb loader is more effective for configurations with disabled caching
475 because it loads the thumbnails at the required size. loader_std loads
476 the thumbnails at the sizes appropriate for standard cache (typically 256x256 pixels)
477 and then performs one additional scaling */
478 if (options->thumbnails.spec_standard && options->thumbnails.enable_caching)
480 return (ThumbLoader *)thumb_loader_std_new(width, height);
483 tl = g_new0(ThumbLoader, 1);
484 tl->standard_loader = FALSE;
486 tl->cache_enable = options->thumbnails.enable_caching;
487 tl->cache_hit = FALSE;
488 tl->percent_done = 0.0;
494 tl->idle_done_id = -1;
499 void thumb_loader_free(ThumbLoader *tl)
503 if (tl->standard_loader)
505 thumb_loader_std_free((ThumbLoaderStd *)tl);
509 image_loader_free(tl->il);
510 file_data_unref(tl->fd);
512 if (tl->idle_done_id != -1) g_source_remove(tl->idle_done_id);
518 gint thumb_from_xpm_d(const gchar **data, gint max_w, gint max_h, GdkPixmap **pixmap, GdkBitmap **mask)
523 pixbuf = gdk_pixbuf_new_from_xpm_data(data);
524 w = gdk_pixbuf_get_width(pixbuf);
525 h = gdk_pixbuf_get_height(pixbuf);
527 if (pixbuf_scale_aspect(w, h, max_w, max_h, &w, &h))
533 pixbuf = gdk_pixbuf_scale_simple(tmp, w, h, GDK_INTERP_NEAREST);
534 gdk_pixbuf_unref(tmp);
537 gdk_pixbuf_render_pixmap_and_mask(pixbuf, pixmap, mask, 128);
538 gdk_pixbuf_unref(pixbuf);
545 /* release thumb_pixbuf on file change - this forces reload. */
546 void thumb_notify_cb(FileData *fd, NotifyType type, gpointer data)
548 if (type != NOTIFY_TYPE_INTERNAL && fd->thumb_pixbuf)
550 g_object_unref(fd->thumb_pixbuf);
551 fd->thumb_pixbuf = NULL;
557 *-----------------------------------------------------------------------------
558 * xvpics thumbnail support, read-only (private)
559 *-----------------------------------------------------------------------------
563 * xvpics code originally supplied by:
564 * "Diederen Damien" <D.Diederen@student.ulg.ac.be>
566 * Note: Code has been modified to fit the style of the other code, and to use
567 * a few more glib-isms.
568 * 08-28-2000: Updated to return a gdk_pixbuf, Imlib is dieing a death here.
571 #define XV_BUFFER 2048
572 static guchar *load_xv_thumbnail(gchar *filename, gint *widthp, gint *heightp)
575 gchar buffer[XV_BUFFER];
577 gint width, height, depth;
579 file = fopen(filename, "rt");
580 if (!file) return NULL;
582 fgets(buffer, XV_BUFFER, file);
583 if (strncmp(buffer, "P7 332", 6) != 0)
589 while (fgets(buffer, XV_BUFFER, file) && buffer[0] == '#') /* do_nothing() */;
591 if (sscanf(buffer, "%d %d %d", &width, &height, &depth) != 3)
597 data = g_new(guchar, width * height);
598 fread(data, 1, width * height, file);
607 static void free_rgb_buffer(guchar *pixels, gpointer data)
612 static GdkPixbuf *get_xv_thumbnail(gchar *thumb_filename, gint max_w, gint max_h)
621 path = path_from_utf8(thumb_filename);
622 directory = g_path_get_dirname(path);
623 name = g_path_get_basename(path);
625 thumb_name = g_build_filename(directory, ".xvpics", name, NULL);
631 packed_data = load_xv_thumbnail(thumb_name, &width, &height);
640 rgb_data = g_new(guchar, width * height * 3);
641 for (i = 0; i < width * height; i++)
643 rgb_data[i * 3 + 0] = (packed_data[i] >> 5) * 36;
644 rgb_data[i * 3 + 1] = ((packed_data[i] & 28) >> 2) * 36;
645 rgb_data[i * 3 + 2] = (packed_data[i] & 3) * 85;
649 pixbuf = gdk_pixbuf_new_from_data(rgb_data, GDK_COLORSPACE_RGB, FALSE, 8,
650 width, height, 3 * width, free_rgb_buffer, NULL);
652 if (pixbuf_scale_aspect(width, height, max_w, max_h, &width, &height))
658 pixbuf = gdk_pixbuf_scale_simple(tmp, width, height, GDK_INTERP_NEAREST);
667 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */