rockbox/firmware/buffer.c, branch duke3d

FS#12412 : Delete old buffer allocation code which has been replaced by core_alloc, and move buffer setup code to core_alloc.c

2011-11-29T00:42:27+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31088 a1c6a512-1295-4272-9138-f99709370657

Fix errors and warnings.

2011-08-14T15:37:05+00:00

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

GSoC/Buflib: Replace all direct accesses to audiobuf with buffer API functions.

2011-08-14T15:13:00+00:00

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

Workaround/fix (I'm not sure!) for buffer_alloc() returning unaligned addresses in case other parts of the code increase audiobuf behind buffer.c's back.

2011-06-21T22:04:17+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30049 a1c6a512-1295-4272-9138-f99709370657

Clean up multiple definitions of RAM size. Remove -DMEM (make) and MEM (code), use the already defined MEMORYSIZE instead.

2011-02-02T17:43:32+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29189 a1c6a512-1295-4272-9138-f99709370657

If BUFFER_ALLOC_DEBUG is defined, make buffer_alloc() not actually allocate anything if size==0, so code that uses buffer_alloc(0) to find out what address it would get keeps working

2010-09-26T12:27:38+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28174 a1c6a512-1295-4272-9138-f99709370657

Add optional (define BUFFER_ALLOC_DEBUG to enable it) code to check for code overflowing buffer_alloc()-allocated buffers.

2010-09-26T12:05:42+00:00

Also add a panicf() if buffer_alloc() doesn't have enough space left to allocate a requested buffer


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28173 a1c6a512-1295-4272-9138-f99709370657

Rockbox as an application: Replace many occurences of #ifdef SIMULATOR with #if (CONFIG_PLATFORM & PLATFORM_HOSTED) (or equivalently).

2010-06-21T16:53:00+00:00

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

Updated our source code header to explicitly mention that we are GPL v2 or

2008-06-28T18:10:04+00:00

later. We still need to hunt down snippets used that are not. 1324 modified
files...
http://www.rockbox.org/mail/archive/rockbox-dev-archive-2008-06/0060.shtml


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17847 a1c6a512-1295-4272-9138-f99709370657

New scheduler, with priorities for swcodec platforms. Frequent task

2006-09-16T16:18:11+00:00

switching should be more efficient and tasks are stored in linked
lists to eliminate unnecessary task switching to improve performance.
Audio should no longer skip on swcodec targets caused by too CPU
hungry UI thread or background threads.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10958 a1c6a512-1295-4272-9138-f99709370657