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
buflib_get_data() isn't inlined for plugins anymore, but can be if really needed.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30387 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
get_long_be shifts an unsigned char left--which results in a signed int.
It then implicitly casts to unsigned long, which sign-extends the int,
leaving unwanted 1's in the upper bits. This affects AIFF.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30364 a1c6a512-1295-4272-9138-f99709370657
I'm wondering if that also was the cause
for the lines exactly next to it:
---------------------------------
/* This cleans out the mysterious garbage that appears */
rb->lcd_clear_display();
---------------------------------
-> Atleast I see no garbage in the sim.
Credit for this bug goes to "cppcheck".
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30345 a1c6a512-1295-4272-9138-f99709370657
The data abort was in find_handle() because current_handle was corrupted. This
most probably happened due to the FMS allocating Radio AA on the buffer without
resetting the buffer, corrupting buffering/playback state.
The fix is to grab buffer control explicitely.
r30308 isn't actually related, regardless of the task title.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30342 a1c6a512-1295-4272-9138-f99709370657
