* Enhance allocation function comments to better state the return value and what an invalid value is
* Change clients to check for "< 0" instead of "<= 0" or "== 0"
* Return -1 or -2 depending on the exact failure in buflib_alloc_ex.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30469 a1c6a512-1295-4272-9138-f99709370657
Also add two dircache function, one of which does what dircache_disable()
did previously as this now also frees the dircache buffer.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30393 a1c6a512-1295-4272-9138-f99709370657
The buflib memory allocator is handle based and can free and
compact, move or resize memory on demand. This allows to effeciently
allocate memory dynamically without an MMU, by avoiding fragmentation
through memory compaction.
This patch adds the buflib library to the core, along with
convinience wrappers to omit the context parameter. Compaction is
not yet enabled, but will be in a later patch. Therefore, this acts as a
replacement for buffer_alloc/buffer_get_buffer() with the benifit of a debug
menu.
See buflib.h for some API documentation.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30380 a1c6a512-1295-4272-9138-f99709370657
Namely, introduce buffer_get_buffer() and buffer_release_buffer().
buffer_get_buffer() aquires all available and grabs a lock, attempting to
call buffer_alloc() or buffer_get_buffer() while this lock is locked will cause
a panicf() (doesn't actually happen, but is for debugging purpose).
buffer_release_buffer() unlocks that lock and can additionally increment the
audiobuf buffer to make an allocation. Pass 0 to only unlock if buffer was
used temporarily only.
buffer_available() is a replacement function to query audiobuflen, i.e. what's
left in the buffer.
Buffer init is moved up in the init chain and handles ipodvideo64mb internally.
Further changes happened to mp3data.c and talk.c as to not call the above API
functions, but get the buffer from callers. The caller is the audio system
which has the buffer lock while mp3data.c and talk mess with the buffer.
mpeg.c now implements some buffer related functions of playback.h, especially
audio_get_buffer(), allowing to reduce #ifdef hell a tiny bit.
audiobuf and audiobufend are local to buffer.c now.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30308 a1c6a512-1295-4272-9138-f99709370657
bsearch() is a general purpose binary search function for arrays.
It's supposedly faster than looping over arrays.
The array needs to be sorted in ascending order under the provided
comparison function. If the key and array element are of the same kind,
then the same compare function can be used for qsort() and bsearch().
Code taken from glibc.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30155 a1c6a512-1295-4272-9138-f99709370657
cache new pointers to dircache items when dircache goes
offline and comes back onlineagain (during tagcache commit). This
should prevent wrong filenames to appear in playlist.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30047 a1c6a512-1295-4272-9138-f99709370657
Only integer IDs are exposed from dircache with this. This way the cache is isolated from other modules.
This is needed for my buflib gsoc project.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30038 a1c6a512-1295-4272-9138-f99709370657
The dircache_entry structs are now allocated subsequently from the front, allowing to treat them as an array. The d_names are allocated from the back (in reverse order, growing downwards).
This allows the cache to be moved around (needed for my buflib gsoc project). It is utilized when loading the cache from disk (on the h100), now the pointer to the cache begin doesn't need to be the same across reboots anymore.
This should save a bit memory usage, since there's no need for aligning padding bytes after d_names anymore.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30036 a1c6a512-1295-4272-9138-f99709370657
It's reduntant, and enlarges the dircache unnecessarily. Saves 4 byte per file in the whole filesystem.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30032 a1c6a512-1295-4272-9138-f99709370657
More information: www.openpandora.org
Possible things to implement:
- Special button mappings
- Battery monitoring
- ALSA audio backend
- Automate creation of "pnd" (=binary) file
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29451 a1c6a512-1295-4272-9138-f99709370657
Adds Nokia N900, N810 and N800 support.
Features:
- Introduce maemo specific platform defines
- Play audio in silent mode
- Stop playback on incoming calls
- Battery level readout
- Bluetooth headset support
- Save CPU by disabling screen updates if the display
is off or the app doesn't have input focus
- N900: GStreamer audio backend
Kudos to kugel for the code review.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29248 a1c6a512-1295-4272-9138-f99709370657
First, it add the ability to tagcache to walk through multiple search roots.
Second, it adds symlinks targets to the search roots if they're are not inside any of the current search roots, otherwise the symlink is ignored (unless it's a file).
The default search root is still /, so no search root will be actually added.
But the tagcache now isn't trapped by recursive symlinks anymore and successfully builds, and it's prepared for a future music directory setting.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28884 a1c6a512-1295-4272-9138-f99709370657
Use host's functions for file i/o directly (open(), close() ,etc.), not the sim_* variants.
Some dir functions need to be wrapped still because we need to cache the parents dir's path (host's dirent doesn't let us know).
For the same reason (incompatibility) with host's dirent) detach some members from Rockbox' dirent struct and put it into an extra one,
the values can be retrieved via the new dir_get_info().
Get rid of the sim_ prefix for sleep as well and change the signature to unix sleep().
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27968 a1c6a512-1295-4272-9138-f99709370657
Removes the need to fix up those in the simulator.
Also work around some posix-mingw incompatibilities (e.g. getcwd()).
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27904 a1c6a512-1295-4272-9138-f99709370657
For RaaA it evaluates user paths at runtime. For everything but codecs/plugins it will give the path under $HOME/.config/rockbox.org if write access is needed or if the file/folder in question exists there (otherwise it gives /usr/local/share/rockbox).
This allows for installing themes under $HOME as well as having config.cfg and other important files there while installing the application (and default themes) under /usr/local.
On the DAPs it's a no-op, returing /.rockbox directly.
Not converted to use get_user_file_path() are plugins themselves, because RaaA doesn't build plugins yet.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27656 a1c6a512-1295-4272-9138-f99709370657
- Move ATTRIBUTE_PRINTF/ATTRIBUTE_SCANF from _ansi.h
They are not related at all to this file, and this broke compilation
with Code Sourcery GCC which ships its own _ansi.h
- Move LIKELY/UNLIKELY from system.h
There is likely a lot more GCC extensions used everywhere in the source,
conditionally on __GNUC__ or unconditionally
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27548 a1c6a512-1295-4272-9138-f99709370657
The simulator defines PLATFORM_HOSTED, as RaaA will do (RaaA will not define SIMULATOR).
The new define is to (de-)select code to compile on hosted platforms generally.
Should be no functional change to targets or the simulator.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27019 a1c6a512-1295-4272-9138-f99709370657
This is to a) to cleanup firmware/common and firmware/include a bit, but also b) for Rockbox as an application which should use the host system's c library and headers, separating makes it easy to exclude our files from the build.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25850 a1c6a512-1295-4272-9138-f99709370657
- Move diacritic.c to firmware/common
- The function is_diacritic returns bool now
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25526 a1c6a512-1295-4272-9138-f99709370657
Introduce a new .init section for initialisation code, so that it can be copied to an area which is later overwritten before calling. The stack/bss can then overwrite that code, effectively freeing the code size that the initialisation routines need. Gives a few kB ram usage back.
Only implemented for PP and as3525 so far. More targets could be added, as well as more functions.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25013 a1c6a512-1295-4272-9138-f99709370657
