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
243 if ( ! ( app -> object_flags & PND_DISCO_GENERATED ) ) {
245 // pull icon into buffer from .pnd if not already found an icon
247 iconbuf = pnd_emit_icon_to_buffer ( app, &buflen );
256 // ready up a RWbuffer for SDL
257 SDL_RWops *rwops = SDL_RWFromMem ( iconbuf, buflen );
259 s = IMG_Load_RW ( rwops, 1 /* free the rwops */ );
265 free ( iconbuf ); // ditch the icon from ram
267 //pnd_log ( pndn_debug, "Image size is %u x %u (max %u x %u)\n", s -> w, s -> h, maxwidth, maxheight );
270 if ( s -> w < maxwidth ) {
272 if ( pnd_conf_get_as_int_d ( g_conf, "grid.scale_up_bool", 1 ) ) {
274 double scale = (double)maxwidth / (double)s -> w;
275 //pnd_log ( pndn_debug, " Upscaling; scale factor %f\n", scale );
276 scaled = rotozoomSurface ( s, 0 /* angle*/, scale /* scale */, 1 /* smooth==1*/ );
277 SDL_FreeSurface ( s );
280 } else if ( s -> w > maxwidth ) {
282 double scale = (double)maxwidth / (double)s -> w;
283 //pnd_log ( pndn_debug, " Downscaling; scale factor %f\n", scale );
284 scaled = rotozoomSurface ( s, 0 /* angle*/, scale /* scale */, 1 /* smooth==1*/ );
285 SDL_FreeSurface ( s );
290 c = (mm_cache_t*) malloc ( sizeof(mm_cache_t) );
291 bzero ( c, sizeof(mm_cache_t) );
293 if ( ! g_icon_cache ) {
296 c -> next = g_icon_cache;
300 strncpy ( c -> uniqueid, app -> unique_id, 1000 );
306 mm_cache_t *cache_query ( char *id, mm_cache_t *head ) {
307 mm_cache_t *iter = head;
314 if ( iter -> uniqueid &&
315 strcasecmp ( iter -> uniqueid, id ) == 0 )
325 mm_cache_t *cache_query_icon ( char *id ) {
326 return ( cache_query ( id, g_icon_cache ) );
329 mm_cache_t *cache_query_preview ( char *id ) {
330 return ( cache_query ( id, g_preview_cache ) );
333 unsigned char cache_find_writable ( char *originpath, char *r_writepath, unsigned int len ) {
334 static char *searchpaths = NULL;
335 static unsigned int minfree = 0;
336 char searchpath [ PATH_MAX ] = "";
337 char cmdbuf [ PATH_MAX ];
339 unsigned int freespace = 0;
341 // figure out the mountpoint for the file, and stick that in at front of searchpath
342 // so that it will get picked first, if possible.
343 char mountpath [ PATH_MAX ];
344 if ( pnd_determine_mountpoint ( originpath, mountpath, PATH_MAX ) ) {
345 sprintf ( searchpath, "%s:", mountpath );
346 //pnd_log ( pndn_debug, "Preferred cache target for %s: %s\n", originpath, mountpath );
349 // try to find a device, in order of searchpath, with enough space for this cache-out
352 // populate the searchpath
353 if ( ! searchpaths ) {
354 searchpaths = pnd_conf_get_as_char ( g_conf, "previewpic.cache_searchpath" );
355 minfree = pnd_conf_get_as_int_d ( g_conf, "previewpic.cache_minfree", 500 );
358 if ( ! searchpaths ) {
359 return ( 0 ); // fail!
362 strncat ( searchpath, searchpaths, PATH_MAX );
367 // since I didn't figure out which /sys/block I can pull remaining space from, I'll use df for now :/
368 sprintf ( cmdbuf, "/bin/df %s", buffer );
370 f = popen ( cmdbuf, "r" );
373 while ( fgets ( cmdbuf, PATH_MAX, f ) ) {
375 // /dev/sdc2 7471392 725260 6366600 11% /media/IMAGE
376 if ( sscanf ( cmdbuf, "%*s %*u %*u %u %*u %*s\n", &freespace ) == 1 ) {
377 strncpy ( r_writepath, buffer, len );
378 if ( freespace > minfree ) {