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
This enables the ability to allocate (and free) memory dynamically
without fragmentation, through compaction. This means allocations can move
and fragmentation be reduced. Most changes are preparing Rockbox for this,
which many times means adding a move callback which can temporarily disable
movement when the corresponding code is in a critical section.
For now, the audio buffer allocation has a central role, because it's the one
having allocated most. This buffer is able to shrink itself, for which it
needs to stop playback for a very short moment. For this,
audio_buffer_available() returns the size of the audio buffer which can
possibly be used by other allocations because the audio buffer can shrink.
lastfm scrobbling and timestretch can now be toggled at runtime without
requiring a reboot.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30381 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
buffer chunks.
* Samples and position indication is closely associated with audio data
instead of compensating by a latency constant. Alleviates problems with
using the elapsed as a track indicator where it could be off by several
steps.
* Timing is accurate throughout track even if resampling for pitch shift,
whereas before it updated during transition latency at the normal 1:1 rate.
* Simpler PCM buffer with a constant chunk size, no linked lists.
In converting crossfade, a minor change was made to not change the WPS until
the fade-in of the incoming track, whereas before it would change upon the
start of the fade-out of the outgoing track possibly having the WPS change
with far too much lead time.
Codec changes are to set elapsed times *before* writing next PCM frame because
time and position data last set are saved in the next committed PCM chunk.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30366 a1c6a512-1295-4272-9138-f99709370657
If the dircache was interrupted during generation (e.g. through USB
insertion), then the allocated buffer was leaked and a new one
was allocated for the second cache generation. This causes a
panic since r30308 since playback holds the control over the
audiobuffer at that time.
The fix is to simply check allocated_size instead of
dircache_size which is reset to 0 upon cancellation.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30321 a1c6a512-1295-4272-9138-f99709370657
dircache_root wasn't initialized at all and the giving allocated_size
passed to buffer_release_buffer() didn't account for alignment padding.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30318 a1c6a512-1295-4272-9138-f99709370657
The buffer_offset paramter of audio_init_recording() is removed as it
was unused in both implementations.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30310 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
The previous maximum (20) still causes excessive heat for some people, and measurements (using a digital camera and a white screen) show that the maximum brightness in the OF corresponds to 12 in rockbox, so we use 12 now.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30227 a1c6a512-1295-4272-9138-f99709370657
The first is an off-by-one that leads to miscalculation of the dircache size.
The format string size was used but dircache size was incremented by the snprintf() result which is smaller.
The other forgot to update the location of the "." and ".." strings upon compaction,
so that new folders got assigned orphaned pointers for those directory entires.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30224 a1c6a512-1295-4272-9138-f99709370657
Making a JNI call from tick tasks is not permitted as the underlying thread
is not attached to the Java VM. This is an error and crashes in the emulator
(which has stricter JNI checks enabled by default).
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30173 a1c6a512-1295-4272-9138-f99709370657
Also set up a callback for the battery capacity setting (for all players) so changes take effect without having to reboot.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30170 a1c6a512-1295-4272-9138-f99709370657
* Cleanup RockboxService.java by moving the battery and
headphone monitors to separate classes and detaching their instances
* Move those monitors and RockboxTelephony.java into a new
monitors subdirectory
* Call those monitors all the same from native code by creating
the objects there
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30160 a1c6a512-1295-4272-9138-f99709370657
