Commit graph

661 commits

Author SHA1 Message Date
Christian Soffke
7f265ee8dd Database: Add ability to insert multiple files into playlists
You could only add single files to playlists
from the database browser before. This
enables adding any database selection to
a new or existing playlist.

Change-Id: I811c7167641c589944bb2afc18dcc1d299a7b979
2023-01-14 12:14:28 -05:00
Aidan MacDonald
1e9ad3ca0d Remove buflib allocation names, part two
Remove allocation names from the buflib API and fix up all callers.

Change-Id: I3df922e258d5f0d711d70e72b56b4ed634fb0f5a
2023-01-13 10:32:54 +00:00
Aidan MacDonald
6c52fa139c Remove browse_context_init()
Prefer to use designated initializers to avoid having to specify
unneeded parameters. Non-initialized members are zero-initialized
by the compiler.

Change-Id: Ia6a03c45cb3ef0b30f458d7d0ae1604a350c737c
2022-12-17 13:36:38 +00:00
William Wilgus
c6c1d62489 [Bug Fix] filetypes.c move voice data out of INIT_ATTR
tree_get_filetype_voiceclip is called after init it shouldn't be marked as INIT_ATTR

add _init to the functions & data that are used at init only to be a bit more clear

Change-Id: I8eb1914560b782c2c0fdd7649e761f94e382d5cb
2022-12-13 22:35:24 -05:00
Christian Soffke
dfd9c10589 Eliminate skin updates in between activities
1) Adds way to pop activity without refreshing the skin at
the same time.

Activities are sometimes popped in immediate succession,
or one activity is popped before another one is pushed right
away. This can lead to the UI appearing glitchy, due to an
activity only appearing for a split-second, which is especially
noticeable with complex skins that change the dimensions
of the UI viewport depending on the current activity

To fix this, prevent superfluous skin updates

* when switching between:
- WPS and browser
- WPS and Playlist Catalogue
- WPS and playlist
- WPS and Settings/System/Plugins

* when accessing Track Info or when displaying
bookmarks using the context menu on the WPS

* when switching from QuickScreen to Shortcuts Menu

2) The playlist viewer activity was pushed & popped
redundantly by playlist_view.

----
NB:
Behavior has remained unchanged in all instances of the
code where pop_current_activity() has been replaced by
pop_current_activity(ACTIVITY_REFRESH_NOW).

Change-Id: I56b517b8c9dba823a9fed3a3f558d7469dcea9fd
2022-12-11 11:50:33 +01:00
Christian Soffke
66a411a1ba Tree / Playlist Viewer / Menu: Fix redraw issues
1) Tree_lists was only initialized when booting the player.

In cases where a skin used custom UI viewports of
different sizes, when switching between screens, such as
between root menu, QuickScreen, and tree browser, this
caused list titles to appear with a significant delay,
unless a GUI_EVENT_ACTIONUPDATE was sent.

Tree_lists is now initialized when entering dirbrowse
or when restoring/reloading the list.

This eliminates multiple redundant UI refreshes when
entering the tree browser, due to gui_synclist_draw not
being called twice anymore and by being able to omit
GUI_EVENT_ACTIONUPDATE.

Separate calls to gui_synclist_init_display_settings
have become unnecessary since it is already called
by gui_synclist_init.

2) The synclist is also re-initialized when returning
from the QuickScreen in the Playlist Viewer or
regular menus, or when returning from Settings
menus

Change-Id: I2884249eda55f782e97abad9dc19b3d9d1267fc9
2022-12-08 00:38:59 -05:00
Aidan MacDonald
98c7505c60 tagcache: move TAGCACHE_STATEFILE define to .c file
Provide a function to remove the statefile so that external
users of this define can call that instead.

Change-Id: Id3e1e0564b25fe28bbc68c2e9365d8bf51e6e4f8
2022-12-03 06:34:47 -05:00
William Wilgus
1561b4ec9a filetypes.c clean-up
make icon a voice struct one

Change-Id: I44df788d03e38fe1bca7ea50f32c8dc5941405ab
2022-11-22 15:19:45 -05:00
William Wilgus
19aa4ca276 tree.c spell names AFTER voicing filetype
Change-Id: Iff2102c2993593f7b3c24f131c0f67f45c870bc7
2022-11-21 23:05:01 -05:00
William Wilgus
d077fec5f1 tree.c move voice filetypes to its own conditional
Change-Id: I3a5171378355e64192de1e29f62d52e03771afe4
2022-11-21 22:54:54 -05:00
William Wilgus
efdc6feddb move inbuilt_filetypes.voiceclip to a separate struct
there are a lot of duplicated voiceclips in the inbuilt_filetypes struct
its already looked up so deduplicate

Change-Id: I7846277d2da308f605d5564e9081d6077e697239
2022-11-21 23:52:59 -04:00
William Wilgus
687767bd8f convert a few more strlcpy to strmemccpy calls Fix Red and Yellow
albumart is imported to plugins just use a macro substitution
for now

Change-Id: I7c2e10d7559c087f0b3d0e6b844027d3b323da55
2022-11-15 01:24:26 -05:00
William Wilgus
f6c719d7ec replace strlcpy with strmemccpy
replace applicable calls to strlcpy with calls to strmemccpy
which null terminates on truncation

in theory the strmemccpy calls should be slightly faster since they
don't traverse the rest of the source string on truncation
but I seriously doubt there is too much of that going on in the code base

Change-Id: Ia0251514e36a6242bbf3f03c5e0df123aba60ed2
2022-11-14 23:56:16 -05:00
Christian Soffke
c088a9453d Database: Restore selection in lower menu levels
The database only remembered what you'd selected when
ascending the menu hierarchy again from a lower level.

Now it restores a previous selection going in the other
direction as well, when you enter a new menu, as long
as the selection at the current level hasn't changed.

Change-Id: I5068287ff758a7cfebf1428e9b0ffd30e6ef541e
2022-11-14 05:47:10 +01:00
Christian Soffke
51c1e3ce7f Shortcuts: Fix return to wrong menu
Rockbox would go to a previously selected
menu instead of returning to the current one
when leaving the Shortcuts screen.

Change-Id: I3546e32def9124956cd9edc258e14db91d19fa22
2022-11-04 16:09:07 -04:00
Christian Soffke
9da3044cf7 Database: Remove firstpos/pos_history
From what I can tell, this is unused historical
baggage that has no effect whatsoever these
days.

Change-Id: I1b6fed64e7bf5cc4db4ec028617c818c59d81324
2022-11-02 07:19:36 -04:00
Christian Soffke
246152a671 Database: Fix possible crash
The File Browser and Database apparently share
the same selected_item_history, which means that
selected_item can be -1 even in the context of the
database,

This leads to tree_get_file_position being called in
id3db mode, which isn't safe to do.

Change-Id: I46151e8a823afab0b57ad839cde13f6072b8917b
2022-10-30 11:57:33 -04:00
Christian Soffke
193ebb5a36 Enable access to Shortcuts Menu from QuickScreen
Offers a quick way of switching to the Shortcuts Menu
by pressing the 'context menu' button while QuickScreen
is active (e.g. long press Select on iPods and some other
players)

Change-Id: I38292c7070cf093a81e1db688809b1f0d6a8764a
2022-10-25 03:26:51 +02:00
Aidan MacDonald
1718cf5f8a Convert a number of allocations to use buflib pinning
Several places in the codebase implemented an ad-hoc form of pinning;
they can be converted to use buflib pinning instead.

Change-Id: I4450be007e80f6c9cc9f56c2929fa4b9b85ebff3
2022-10-16 14:50:39 +01:00
Aidan MacDonald
d5a081cbd1 gui: Remove "enum list_wrap" from list action functions
Removing the "list_wrap" argument is actually pretty easy.
In practice, almost all lists are using LIST_WRAP_UNLESS_HELD
behavior so we can make that the default. A couple of lists
disable wraparound with LIST_WRAP_OFF; this is now achieved
by setting the list "wraparound" flag to false when setting
up the list. LIST_WRAP_ON was unused and is of questionable
value, so it has been removed entirely.

This makes list wraparound behavior a property of the list,
controlled solely by the "wraparound" flag. The result is a
simpler list API and implementation, without changing the
behavior of any lists.

Change-Id: Ib55d17519e6d92fc95ae17b84ab0aaf4233bcb5a
2022-10-05 11:22:55 -04:00
William Wilgus
ab71b9e334 tree.c update settings when new theme selected
Change-Id: I376aba4258dd3c54c45d97317aa1e7bc8f2a3a17
2022-04-28 18:56:13 -04:00
William Wilgus
ddcab156f7 gui_synclist move global display settings to list struct
its really painful needing to override global settings in order to change
some aspects of lists

this patch moves:

[scrollbar position, cursor type,
talk_menus, keyclick,
wrap around, scroll paginated]

to variables within the synclist, it also makes updating
after settings changes a necessity

I think I have the static synclists in core covered

(I think the one in gui/list-skinned can be left as is)

this patch allows easy modification these flags on the fly

Change-Id: Id0dcb8b05eb9ecd78929c0aff7678bf2ab4c70a7
2022-04-10 22:24:28 -04:00
William Wilgus
d72a0ed65d Use USB events for storing plugin_menu state
use usb connected callback to cancel menu reentry after USB plug/unplug

Change-Id: I8267deed6e8ada94ca527392f56f50ef22def1d7
2021-10-31 12:42:24 -04:00
William Wilgus
dc24a18cef PLUGINBROWSER make resumable
make the plugin browser remember the last item between invocations

this has bugged me for the longest time dealing with the plugin_menu

Fix a very old bug fix for reloading lang strings in the lang menu
FS#8117, sending multiple ENTER_MENU_ITEM callbacks from different
areas of the code makes it hard to keep track of where your callback
is originating

Change-Id: Ib0a61558c11ee4c772134378a7020ac0e10fc4ee
2021-10-29 03:07:42 -04:00
William Wilgus
8ee24d8cb4 onplay calls plugins to run other plugins
Change-Id: I7c1593c93debc0ac5c0f1b2e839ec0eb1bd375b7
2021-10-27 22:44:35 -04:00
Christian Soffke
1697b13693 whitespace fixes
Change-Id: I86880595b78e3cae62361c32ca57cf6f6a4ad963
2021-10-21 22:42:01 +02:00
William Wilgus
42ba117952 tree.c use strlcpy to avoid buffer ovfl
Change-Id: I6ac4ec6306c2101b11bc0495edd7bbe2717acf9c
2021-07-24 13:44:35 +00:00
Dana Conrad
10d199f9d5 Allow Softlock to happen in most contexts
All this tested on erosq, I'm not sure if this will break on other targets or if there is a reason this shouldn't be done.

apps/menu.c:

Added CONTEXT_MAINMENU|ALLOW_SOFTLOCK in do_menu(), this allows the user to lock the keys in most places within the main menu tree.

apps/tree.c:

Added CONTEXT_TREE|ALLOW_SOFTLOCK in dirbrowse(), this allows locking the keys in most other contexts not covered by the above.

Notable exceptions I've found that still cannot be locked: View Playlist, any settings change screen (ex. Shuffle No/Yes, Volume Select dB)

Adding fix for Advanced Key Lock feature brought to light by this change in apps/action.c.

Expected behavior for Advanced keylock is now (according to my testing here):
        Volume:	Can be exempted	from keylock anywhere
        Skip/Scrollwheel: Can only be exempted in WPS
        Seek: Can only be exempted in WPS
        Play: Can only be exempted in WPS

Backlight exemption is same except the Volume exemption doesn't work outside the WPS, but I don't believe that is due to this change.

Change-Id: Ifa3d1a03cf4884520a37dd91ed53a825cdb66778
2021-05-24 02:30:09 +00:00
Christian Soffke
4bc7bafc68 Enable QuickScreen in filtered dir modes & playlist viewer
Will allow the QuickScreen to be accessed in the playlist catalogue
and when editing a playlist using the playlist viewer.

Change-Id: I4b7108db6384eb2077ffdccb2992f2e51a39f42f
2021-04-04 11:14:18 +02:00
William Wilgus
9712d375ce Shortcuts.c -- Update
Fix returns from shortcuts -- should now run plugins
Fix formatting of file names to remove path from browser shortcuts

Change-Id: I46e337110d04b84bedcb0c2945d5dd29a1860847
2021-03-07 10:07:49 -05:00
Christian Soffke
7d7a3156d3 Fix skin rendering issue entering dirbrowse
If the custom UI viewport (for displaying lists) changes size when entering dirbrowse, other viewports won't be correctly rendered and require a redraw.

The following is a minimal test case for an example SBS where (the specified background color for) the viewport at the top of the screen won't appear after the user has entered the (root menu of the) file or database browser:

%?if(%cs,=,1)<%VI(main)|%VI(other)>

%V(0,0,-,21,-)
%Vb(ededed)

%Vi(main,0,22,-,-,-)

%Vi(other,0,60,-,-,-)

Change-Id: I1aeed0561f16531802d0fb8dc5fd18d65ac8f25a
2021-02-27 14:41:54 +00:00
Solomon Peachy
ff6e175c20 get rid of ACTION_F3 (leftover from Archos days)
Change-Id: I8f602299bbc8caf6c8189361dbd41af31f19c1b3
2020-10-08 19:20:47 -04:00
William Wilgus
3550283442 Add open_plugin to core
open_plugin allows arbitrary plugins to be called
in hotkey and start screen

replaces PictureFlow Integration
shortcuts menu plays plugins now too

rather than store paths and parameters in the settings
that reside in memory instead entries in a file are searched by hash.
after all, the plugin has to be loaded from disk anyways

----------------------------------------------------------------------------
shortcut_viewer.rock--  can now call plugins rather than taking you to them
in the browser
-----------------------------------------------------------------------------
Added a new option to menus:
 F_CB_ON_SELECT_ONLY
 instead of option callback every time a item is accessed
 F_CB_ON_SELECT_ONLY fires callback only when item is selected
-----------------------------------------------------------------------------
Added manual entries
-----------------------------------------------------------------------------

Change-Id: I078b57b1d2b4dd633c89212c1082fcbc1b516e6a
2020-08-17 10:15:14 -04:00
Solomon Peachy
658026e626 [4/4] Remove HAVE_LCD_BITMAP, as it's now the only choice.
Note:  I left behind lcd_bitmap in features.txt, because removing it
would require considerable work in the manual and the translations.

Change-Id: Ia8ca7761f610d9332a0d22a7d189775fb15ec88a
2020-07-24 21:20:13 +00:00
Solomon Peachy
8cb555460f [3/4] Completely remove HWCODEC support
'swcodec' is now always set (and recording_swcodec for recording-capable
units) in feature.txt so the manual and language strings don't need to
all be fixed up.

Change-Id: Ib2c9d5d157af8d33653e2d4b4a12881b9aa6ddb0
2020-07-24 21:20:13 +00:00
Solomon Peachy
0c4f89370d [2/4] get rid of HAVE_LCD_CHARCELLS
HAVE_LCD_BITMAP is now redundant.

lcd_bitmap is always-on in features.txt so manual and lang strings
don't have to change

Change-Id: I08eeb20de48099ffc2dc23782711af368c2ec794
2020-07-24 21:20:13 +00:00
Solomon Peachy
092c340a20 [1/4] Remove SH support and all archos targets
This removes all code specific to SH targets

Change-Id: I7980523785d2596e65c06430f4638eec74a06061
2020-07-24 21:20:13 +00:00
William Wilgus
cb94b3ae2e keyboard add ability to specify temporary custom layouts
rb core allows you to load custom keyboard layouts

this patch adds the ability to load a keyboard layout in a buffer
the custom layout is temporary and does not overwrite the current layout

use like so:

    unsigned short kbd[64];
    unsigned short *kbd_p = kbd;
    if (!kbd_create_layout("ABCD1234\n", kbd, sizeof(kbd)))
        kbd_p = NULL;

    rb->kbd_input(buf,sizeof(buf), kbd_p);

Change-Id: I7be2bd4a1b4797a147fa70228a9749dc56ac052a
2020-07-22 06:48:28 -04:00
William Wilgus
8b7ae89b43 Playlist rework
consolidate some of the playlist create functions
remove extensions from playlist naming (you can still add it if you desire)
switch to strlcpy, strlcpy functions

Change-Id: Ibd62912da4d1f68ed5366baa887d92d4c6b1f933
2019-08-18 10:18:31 -05:00
William Wilgus
5a4cdb96b9 Playlist Fix failure to append default file name pt2
fix create_playlist too

Change-Id: Ic1de1382d5b534991253d662cb1b3aa5520f8887
2019-08-17 09:06:14 -05:00
William Wilgus
60f60d9a12 Fix tree.c static allocation detection during buffer move
Change-Id: I170177ff331f33961863eff0dd3ba5c570a3961d
2019-02-07 05:52:19 +01:00
William Wilgus
f08d218e67 Fix tree.c->dirbrowse panic from database browser
I set up panics on invalid entries throughout tree.c
dirbrowser was checking for file attributes even when the result
was unused, the database browser called this code with an
invalid (to the tagcache) index

This patch fixes that oversight and also adds __func__ to the
panics for easier sleuthing in the future

Change-Id: Ie1d6511423bba48125e4916b1c3049c048abaee0
2018-12-20 20:41:21 -06:00
Solomon Peachy
4adad0bc1f FS#6323: Speech for ID3 viewer, playlist catalog and playlist viewer
Modified from original ticket, Taken from Igor Poretsky's tree, and
further modified by myself to incorporate feedback.

Change-Id: Ibc2180e52af76890b1448d23f79386fd0f88f709
2018-12-15 18:00:23 +01:00
William Wilgus
3f110daf30 Fix tree.c->tree_get_entry_at() buffer overflow
I observed a crash on buflib>move_block
after dumping ram I noticed that the buffer for filetypes was being corrupted

tree_get_entry_at returns a entry from the buflib 'tree entry' buffer
filetree.c->ft_load writes data to this buffer before checking if it has
reached the last entry resulting in buffer overflow that overwrites the
next entry in the buffer ['filetypes']

Patch checks that the index passed to tree_get_entry_at() is in range
otherwise it returns NULL

Added checks + panic in other functions using tree_get_entry_at()
Fixed tree_lock_cache() calls in playlist and filetree

Change-Id: Ibf9e65652b4e00445e8e509629aebbcddffcfd4d
2018-12-14 01:28:17 -06:00
William Wilgus
dd40c46d50 Fix menu warnings
change offending bool return to int

warning: cast between incompatible function types from
'_Bool (*)(void)' to 'int (*)(void)' [-Wcast-function-type]

forgot to remove -- typedef int (*menu_function)(void);

Change-Id: Ie4c8d3ddb0fb7843c4ec584203350d658d6bee3e
2018-10-18 00:06:31 +02:00
William Wilgus
5e5ddce270 Fix truncation warnings in tree.c, filetree.c
Change-Id: Ic5ae1e5f904a3da4bba07cdef7f4bb003dc091b2
2018-07-25 19:33:52 +02:00
William Wilgus
2fb6b2b458 Fix truncation warning playlist.c, tree.c
Change-Id: I0c62f06fea3ccb55efa21b719a44a263dedc32e2
2018-07-25 18:34:53 +02:00
William Wilgus
0c06e5fe90 Add file view menu to file browser
Allows changing file sort options directly through context menu in the file browser
rather than having to exit the browser and go through General Settings>File_View

Change-Id: Iec124d512dcb934bd261b2144a699c23f536c165
2018-06-05 16:35:17 +02:00
Michael Sevakis
7d1a47cf13 Rewrite filesystem code (WIP)
This patch redoes the filesystem code from the FAT driver up to the
clipboard code in onplay.c.

Not every aspect of this is finished therefore it is still "WIP". I
don't wish to do too much at once (haha!). What is left to do is get
dircache back in the sim and find an implementation for the dircache
indicies in the tagcache and playlist code or do something else that
has the same benefit. Leaving these out for now does not make anything
unusable. All the basics are done.

Phone app code should probably get vetted (and app path handling
just plain rewritten as environment expansions); the SDL app and
Android run well.

Main things addressed:
1) Thread safety: There is none right now in the trunk code. Most of
what currently works is luck when multiple threads are involved or
multiple descriptors to the same file are open.

2) POSIX compliance: Many of the functions behave nothing like their
counterparts on a host system. This leads to inconsistent code or very
different behavior from native to hosted. One huge offender was
rename(). Going point by point would fill a book.

3) Actual running RAM usage: Many targets will use less RAM and less
stack space (some more RAM because I upped the number of cache buffers
for large memory). There's very little memory lying fallow in rarely-used
areas (see 'Key core changes' below). Also, all targets may open the same
number of directory streams whereas before those with less than 8MB RAM
were limited to 8, not 12 implying those targets will save slightly
less.

4) Performance: The test_disk plugin shows markedly improved performance,
particularly in the area of (uncached) directory scanning, due partly to
more optimal directory reading and to a better sector cache algorithm.
Uncached times tend to be better while there is a bit of a slowdown in
dircache due to it being a bit heavier of an implementation. It's not
noticeable by a human as far as I can say.

Key core changes:
1) Files and directories share core code and data structures.

2) The filesystem code knows which descriptors refer to same file.
This ensures that changes from one stream are appropriately reflected
in every open descriptor for that file (fileobj_mgr.c).

3) File and directory cache buffers are borrowed from the main sector
cache. This means that when they are not in use by a file, they are not
wasted, but used for the cache. Most of the time, only a few of them
are needed. It also means that adding more file and directory handles
is less expensive. All one must do in ensure a large enough cache to
borrow from.

4) Relative path components are supported and the namespace is unified.
It does not support full relative paths to an implied current directory;
what is does support is use of "." and "..". Adding the former would
not be very difficult. The namespace is unified in the sense that
volumes may be specified several times along with relative parts, e.g.:
"/<0>/foo/../../<1>/bar" :<=> "/<1>/bar".

5) Stack usage is down due to sharing of data, static allocation and
less duplication of strings on the stack. This requires more
serialization than I would like but since the number of threads is
limited to a low number, the tradoff in favor of the stack seems
reasonable.

6) Separates and heirarchicalizes (sic) the SIM and APP filesystem
code. SIM path and volume handling is just like the target. Some
aspects of the APP file code get more straightforward (e.g. no path
hashing is needed).

Dircache:
Deserves its own section. Dircache is new but pays homage to the old.
The old one was not compatible and so it, since it got redone, does
all the stuff it always should have done such as:

1) It may be update and used at any time during the build process.
No longer has one to wait for it to finish building to do basic file
management (create, remove, rename, etc.).

2) It does not need to be either fully scanned or completely disabled;
it can be incomplete (i.e. overfilled, missing paths), still be
of benefit and be correct.

3) Handles mounting and dismounting of individual volumes which means
a full rebuild is not needed just because you pop a new SD card in the
slot. Now, because it reuses its freed entry data, may rebuild only
that volume.

4) Much more fundamental to the file code. When it is built, it is
the keeper of the master file list whether enabled or not ("disabled"
is just a state of the cache). Its must always to ready to be started
and bind all streams opened prior to being enabled.

5) Maintains any short filenames in OEM format which means that it does
not need to be rebuilt when changing the default codepage.

Miscellaneous Compatibility:
1) Update any other code that would otherwise not work such as the
hotswap mounting code in various card drivers.

2) File management: Clipboard needed updating because of the behavioral
changes. Still needs a little more work on some finer points.

3) Remove now-obsolete functionality such as the mutex's "no preempt"
flag (which was only for the prior FAT driver).

4) struct dirinfo uses time_t rather than raw FAT directory entry
time fields. I plan to follow up on genericizing everything there
(i.e. no FAT attributes).

5) unicode.c needed some redoing so that the file code does not try
try to load codepages during a scan, which is actually a problem with
the current code. The default codepage, if any is required, is now
kept in RAM separarately (bufalloced) from codepages specified to
iso_decode() (which must not be bufalloced because the conversion
may be done by playback threads).

Brings with it some additional reusable core code:
1) Revised file functions: Reusable code that does things such as
safe path concatenation and parsing without buffer limitations or
data duplication. Variants that copy or alter the input path may be
based off these.

To do:
1) Put dircache functionality back in the sim. Treating it internally
as a different kind of file system seems the best approach at this
time.

2) Restore use of dircache indexes in the playlist and database or
something effectively the same. Since the cache doesn't have to be
complete in order to be used, not getting a hit on the cache doesn't
unambiguously say if the path exists or not.

Change-Id: Ia30f3082a136253e3a0eae0784e3091d138915c8
Reviewed-on: http://gerrit.rockbox.org/566
Reviewed-by: Michael Sevakis <jethead71@rockbox.org>
Tested: Michael Sevakis <jethead71@rockbox.org>
2014-08-30 03:48:23 +02:00
Michael Sevakis
31b7122867 Implement time-based resume and playback start.
This complements offset-based resume and playback start funcionality.
The implementation is global on both HWCODEC and SWCODEC.

Basically, if either the specified elapsed or offset are non-zero,
it indicates a mid-track resume.

To resume by time only, set elapsed to nonzero and offset to zero.
To resume by offset only, set offset to nonzero and elapsed to zero.

Which one the codec uses and which has priority is up to the codec;
however, using an elapsed time covers more cases:

* Codecs not able to use an offset such as VGM or other atomic
formats

* Starting playback at a nonzero elapsed time from a source that
contains no offset, such as a cuesheet

The change re-versions pretty much everything from tagcache to nvram.

Change-Id: Ic7aebb24e99a03ae99585c5e236eba960d163f38
Reviewed-on: http://gerrit.rockbox.org/516
Reviewed-by: Michael Sevakis <jethead71@rockbox.org>
Tested: Michael Sevakis <jethead71@rockbox.org>
2014-03-10 04:12:30 +01:00