2 #include <stdio.h> /* for FILE etc */
3 #include <stdlib.h> /* for malloc */
4 #include <unistd.h> /* for unlink */
5 #include <limits.h> /* for PATH_MAX */
9 #define __USE_GNU /* for strcasestr */
10 #include <string.h> /* for making ftw.h happy */
16 #include "SDL_image.h"
17 #include "SDL_rotozoom.h"
19 #define __USE_GNU /* for strcasestr */
20 #include <unistd.h> /* for unlink */
21 #include <string.h> /* for making ftw.h happy */
24 #include "pnd_utility.h"
26 #include "pnd_container.h"
27 #include "pnd_discovery.h"
28 #include "pnd_logger.h"
29 #include "pnd_desktop.h"
30 #include "pnd_pndfiles.h"
32 #include "../lib/pnd_pathiter.h"
33 #include "pnd_locate.h"
41 extern pnd_conf_handle g_conf;
42 extern unsigned char g_pvwcache;
44 mm_cache_t *g_icon_cache = NULL;
45 mm_cache_t *g_preview_cache = NULL;
47 unsigned char cache_preview ( pnd_disco_t *app, unsigned int maxwidth, unsigned int maxheight ) {
51 // does this sucker even have a preview?
52 if ( ! app -> preview_pic1 ) {
53 return ( 1 ); // nothing here, so thats fine
56 // check if already cached
57 if ( ( c = cache_query_preview ( app -> unique_id ) ) ) {
58 return ( 1 ); // already got it
61 // not cached, load it up
65 ui_show_hourglass ( 1 /* updaterect*/ );
67 // see if we can mount the pnd/dir
68 // does preview file exist?
69 // if so, load it up, size it, cache it
70 // if not, warning and bail
73 // can we mount? or can we find it in preview cache? or an override?
74 char fullpath [ PATH_MAX ] = "";
75 char filepath [ PATH_MAX ] = "";
77 // first, check for preview override
79 char ovrfile [ PATH_MAX ];
81 sprintf ( ovrfile, "%s/%s", app -> object_path, app -> object_filename );
82 fooby = strcasestr ( ovrfile, PND_PACKAGE_FILEEXT );
84 sprintf ( fooby, "_pvw#%u.png", app -> subapp_number );
86 if ( stat ( ovrfile, &statbuf ) == 0 ) {
87 strncpy ( filepath, ovrfile, PATH_MAX );
92 // if not yet found, try to find in cache
93 if ( filepath [ 0 ] == '\0' && g_pvwcache ) {
94 static char *cache_findpath = NULL;
95 if ( ! cache_findpath ) {
96 cache_findpath = pnd_conf_get_as_char ( g_conf, "previewpic.cache_findpath" );
98 char buffer [ FILENAME_MAX ];
99 sprintf ( buffer, "%s.png", app -> unique_id );
100 char *f = pnd_locate_filename ( cache_findpath, buffer );
102 strncpy ( filepath, f, PATH_MAX );
106 // if we don't have a file path sorted out yet, means we need to mount and figure it
107 if ( ! filepath [ 0 ] ) {
108 sprintf ( fullpath, "%s/%s", app -> object_path, app -> object_filename );
110 if ( ! pnd_pnd_mount ( pnd_run_script, fullpath, app -> unique_id ) ) {
111 pnd_log ( pndn_debug, "Couldn't mount '%s' for preview\n", fullpath );
112 return ( 0 ); // couldn't mount?!
115 sprintf ( filepath, "%s/%s/%s", PND_MOUNT_PATH, app -> unique_id, app -> preview_pic1 );
118 // load whatever path we've got
119 s = IMG_Load ( filepath );
122 // unmount it, if mounted
123 if ( fullpath [ 0 ] ) {
124 pnd_pnd_unmount ( pnd_run_script, fullpath, app -> unique_id );
126 pnd_log ( pndn_debug, "Couldn't open image '%s' for preview\n", filepath );
130 // try to copy file to the cache, if we're doing that, and if mounted
131 if ( g_pvwcache && fullpath [ 0 ] ) {
132 char cacheoutpath [ PATH_MAX ] = "";
134 // figure out where we want to write the file to
135 if ( cache_find_writable ( app -> object_path, cacheoutpath, PATH_MAX ) ) {
136 static char *cache_path = NULL;
137 char buffer [ PATH_MAX ];
138 if ( ! cache_path ) {
139 cache_path = pnd_conf_get_as_char ( g_conf, "previewpic.cache_path" );
142 snprintf ( buffer, PATH_MAX, "%s/%s", cacheoutpath, cache_path );
144 if ( stat ( buffer, &statbuf ) != 0 ) {
145 snprintf ( buffer, PATH_MAX, "/bin/mkdir -p %s/%s", cacheoutpath, cache_path );
148 // set up target filename to copy
149 snprintf ( buffer, PATH_MAX, "%s/%s/%s.png", cacheoutpath, cache_path, app -> unique_id );
150 pnd_log ( pndn_debug, "Found free space to cache preview to here: %s", buffer );
151 if ( ! pnd_filecopy ( filepath, buffer ) ) {
152 pnd_log ( pndn_error, "ERROR: Copying preview from %s to %s", filepath, buffer );
155 pnd_log ( pndn_warning, "WARN: Couldn't find a device to cache preview to.\n" );
158 } // preview file cache
160 // unmount it, if mounted
161 if ( fullpath [ 0 ] ) {
162 pnd_pnd_unmount ( pnd_run_script, fullpath, app -> unique_id );
165 //pnd_log ( pndn_debug, "Image size is %u x %u (max %u x %u)\n", s -> w, s -> h, maxwidth, maxheight );
168 if ( s -> w < maxwidth ) {
170 if ( pnd_conf_get_as_int_d ( g_conf, "previewpic.scale_up_bool", 1 ) ) {
172 double scale = (double)maxwidth / (double)s -> w;
173 //pnd_log ( pndn_debug, " Upscaling; scale factor %f\n", scale );
174 scaled = rotozoomSurface ( s, 0 /* angle*/, scale /* scale */, 1 /* smooth==1*/ );
175 SDL_FreeSurface ( s );
178 } else if ( s -> w > maxwidth ) {
180 double scale = (double)maxwidth / (double)s -> w;
181 //pnd_log ( pndn_debug, " Downscaling; scale factor %f\n", scale );
182 scaled = rotozoomSurface ( s, 0 /* angle*/, scale /* scale */, 1 /* smooth==1*/ );
183 SDL_FreeSurface ( s );
188 c = (mm_cache_t*) malloc ( sizeof(mm_cache_t) );
189 bzero ( c, sizeof(mm_cache_t) );
191 if ( ! g_preview_cache ) {
194 c -> next = g_preview_cache;
198 strncpy ( c -> uniqueid, app -> unique_id, 1000 );
204 unsigned char cache_icon ( pnd_disco_t *app, unsigned char maxwidth, unsigned char maxheight ) {
208 // check if already cached
209 if ( ( c = cache_query_icon ( app -> unique_id ) ) ) {
210 return ( 1 ); // already got it
213 // not cached, load it up
215 unsigned char *iconbuf = NULL;
216 unsigned int buflen = 0;
218 // same-path override?
219 char ovrfile [ PATH_MAX ];
221 sprintf ( ovrfile, "%s/%s", app -> object_path, app -> object_filename );
222 fixpxml = strcasestr ( ovrfile, PND_PACKAGE_FILEEXT );
224 strcpy ( fixpxml, ".png" );
226 if ( stat ( ovrfile, &statbuf ) == 0 ) {
227 buflen = statbuf.st_size;
228 if ( ( iconbuf = malloc ( statbuf.st_size ) ) ) {
229 int fd = open ( ovrfile, O_RDONLY );
231 if ( read ( fd, iconbuf, statbuf.st_size ) != statbuf.st_size ) {
242 // if this is a real pnd file (dir-app or pnd-file-app), then try to pull icon from there
245 if ( app -> object_flags & PND_DISCO_GENERATED ) {
247 // maybe we can discover this single-file and find an icon?
248 if ( strcasestr ( app -> object_filename, PND_PACKAGE_FILEEXT ) ) {
250 // looks like a pnd, now what do we do..
251 pnd_box_handle h = pnd_disco_file ( app -> object_path, app -> object_filename );
254 pnd_disco_t *d = pnd_box_get_head ( h );
255 iconbuf = pnd_emit_icon_to_buffer ( d, &buflen );
258 } // filename has .pnd?
262 // pull icon into buffer from .pnd if not already found an icon
263 iconbuf = pnd_emit_icon_to_buffer ( app, &buflen );
267 } // already got icon?
273 // ready up a RWbuffer for SDL
274 SDL_RWops *rwops = SDL_RWFromMem ( iconbuf, buflen );
276 s = IMG_Load_RW ( rwops, 1 /* free the rwops */ );
282 free ( iconbuf ); // ditch the icon from ram
284 //pnd_log ( pndn_debug, "Image size is %u x %u (max %u x %u)\n", s -> w, s -> h, maxwidth, maxheight );
287 if ( s -> w < maxwidth ) {
289 if ( pnd_conf_get_as_int_d ( g_conf, "grid.scale_up_bool", 1 ) ) {
291 double scale = (double)maxwidth / (double)s -> w;
292 //pnd_log ( pndn_debug, " Upscaling; scale factor %f\n", scale );
293 scaled = rotozoomSurface ( s, 0 /* angle*/, scale /* scale */, 1 /* smooth==1*/ );
294 SDL_FreeSurface ( s );
297 } else if ( s -> w > maxwidth ) {
299 double scale = (double)maxwidth / (double)s -> w;
300 //pnd_log ( pndn_debug, " Downscaling; scale factor %f\n", scale );
301 scaled = rotozoomSurface ( s, 0 /* angle*/, scale /* scale */, 1 /* smooth==1*/ );
302 SDL_FreeSurface ( s );
307 c = (mm_cache_t*) malloc ( sizeof(mm_cache_t) );
308 bzero ( c, sizeof(mm_cache_t) );
310 if ( ! g_icon_cache ) {
313 c -> next = g_icon_cache;
317 strncpy ( c -> uniqueid, app -> unique_id, 1000 );
323 mm_cache_t *cache_query ( char *id, mm_cache_t *head ) {
324 mm_cache_t *iter = head;
331 if ( iter -> uniqueid &&
332 strcasecmp ( iter -> uniqueid, id ) == 0 )
342 mm_cache_t *cache_query_icon ( char *id ) {
343 return ( cache_query ( id, g_icon_cache ) );
346 mm_cache_t *cache_query_preview ( char *id ) {
347 return ( cache_query ( id, g_preview_cache ) );
350 unsigned char cache_find_writable ( char *originpath, char *r_writepath, unsigned int len ) {
351 static char *searchpaths = NULL;
352 static unsigned int minfree = 0;
353 char searchpath [ PATH_MAX ] = "";
354 char cmdbuf [ PATH_MAX ];
356 unsigned int freespace = 0;
358 // figure out the mountpoint for the file, and stick that in at front of searchpath
359 // so that it will get picked first, if possible.
360 char mountpath [ PATH_MAX ];
361 if ( pnd_determine_mountpoint ( originpath, mountpath, PATH_MAX ) ) {
362 sprintf ( searchpath, "%s:", mountpath );
363 //pnd_log ( pndn_debug, "Preferred cache target for %s: %s\n", originpath, mountpath );
366 // try to find a device, in order of searchpath, with enough space for this cache-out
369 // populate the searchpath
370 if ( ! searchpaths ) {
371 searchpaths = pnd_conf_get_as_char ( g_conf, "previewpic.cache_searchpath" );
372 minfree = pnd_conf_get_as_int_d ( g_conf, "previewpic.cache_minfree", 500 );
375 if ( ! searchpaths ) {
376 return ( 0 ); // fail!
379 strncat ( searchpath, searchpaths, PATH_MAX );
384 // since I didn't figure out which /sys/block I can pull remaining space from, I'll use df for now :/
385 sprintf ( cmdbuf, "/bin/df %s", buffer );
387 f = popen ( cmdbuf, "r" );
390 while ( fgets ( cmdbuf, PATH_MAX, f ) ) {
392 // /dev/sdc2 7471392 725260 6366600 11% /media/IMAGE
393 if ( sscanf ( cmdbuf, "%*s %*u %*u %u %*u %*s\n", &freespace ) == 1 ) {
394 strncpy ( r_writepath, buffer, len );
395 if ( freespace > minfree ) {