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98 commits

Author SHA1 Message Date
Takashi Iwai
dd37bb20ee Move poll_* callbacks to fast_ops 
Moved poll_* callbacks to fast_ops.
These callbacks may be called frequently indeed.
 2005-05-23 09:03:16 +00:00
Takashi Iwai
a6d3b9e4e0 Remove poll_ask callback 
Removed poll_ask callbacks.
poll_ask function is merged to poll_descriptors callbacks.
 2005-05-18 10:50:09 +00:00
Jaroslav Kysela
412fb54e0d Fedora 4 patch - gcc4 fixes 2005-05-06 14:09:17 +00:00
Jaroslav Kysela
836987aa99 improved stream linking and plugin code cleanups 
- added link/unlink/link_fd fast_ops callbacks
- moved code from snd_pcm_link to pcm_hw.c
- moved "empty" routines pointing to slave to pcm_generic.c
- introduced snd_pcm_generic_t
 2005-01-20 15:07:51 +00:00
Takashi Iwai
2b54677fdb Change error message handling 
Change the handling of non-fatal errors.  Now the non-fatal error
messages are not shown in stderr and no assert() as default.  The
behavior can be changed with LIBASOUND_DEBUG environment variable.
 2004-12-21 14:11:00 +00:00
Jaroslav Kysela
7c201b510a - added poll_ask callback to mangle avail_min (rate_plugin as example) 
- added mangling of avail_min to rate_plugin
- added poll_fd_count variable
- FIXME: move poll_revents callback to fast_ops
 2004-03-17 11:48:14 +00:00
Jaroslav Kysela
4a4cc2a301 The rate plugin was redesigned. Now only whole periods are resampled to 
avoid rounding problems and to allow using other "block" algorithms.
 2004-02-04 09:21:11 +00:00
Takashi Iwai
8bcadcb2a6 - fixed the calculation of snd_pcm_avail() with plugin. 
this will fix the slow playback problem on mplayer.
- the delay calculation is optimized a bit.
 2003-10-30 18:46:32 +00:00
Takashi Iwai
7716fd1e3d fixes by Art Haas <ahaas@airmail.net>: 
rewritten with C99 struct initialization style.
 2003-07-25 17:02:00 +00:00
Jaroslav Kysela
157107491c Added snd_pcm_type_name() 
Fixed rate conversion plugin (SIGSEGV) - rounding problem
 2003-03-08 16:35:18 +00:00
Jaroslav Kysela
7ecb338398 Use internal snd_pcm_forward() version... 2003-03-07 18:46:25 +00:00
Jaroslav Kysela
7b09000813 Removed snd_pcm_hwdiff() function 2003-02-22 17:53:01 +00:00
Jaroslav Kysela
2dab1dfbc3 Removed snd_pcm_hwptr(). 
Added snd_pcm_hwdiff() and snd_pcm_forward().
Returned the behaviour for snd_pcm_mmap_begin().
 2003-02-22 17:19:02 +00:00
Jaroslav Kysela
fbd99fdec0 Added snd_pcm_hwptr() and enhanced snd_pcm_mmap_begin() for no xrun mode. 2003-02-22 10:19:53 +00:00
Jaroslav Kysela
af89cefd99 More changes for dmix plugin: 
- added poll_events to main pcm structure
  - added poll_revents callback to pcm->ops structure
  - fixed snd_pcm_wait() - call revents function and enhanced
    error code reporting
DMIX plugin:
  - more complete code (works at least for one instance)
  - still no "mix" code (it's silent)
 2003-02-11 18:14:43 +00:00
Jaroslav Kysela
8720faaccb Cleanups in IPC stuff. 
Cleanups in snd_pcm_close().
Added initial code for dmix plugin:
  - only skeleton, but all major problems should be solved
 2003-02-04 14:48:51 +00:00
Jaroslav Kysela
8205a95376 Replaced snd_pcm_avail() with snd_pcm_hwsync() 2002-10-12 11:49:53 +00:00
Jaroslav Kysela
e859cf2644 Implemented snd_pcm_avail() function. 
More documentation updates for snd_pcm_avail_update() and snd_pcm_delay().
Updated behaviour of read/write functions (wait when buffer is full) to
follow kernel.
 2002-10-11 18:39:24 +00:00
Takashi Iwai
12e89c5307 fixed compile warning (conversion between signed and unsigned). 2002-06-18 16:06:14 +00:00
Jaroslav Kysela
c941c548f8 Moved ring buffer pointers and added a mechanism to transfer them via shm 2002-04-23 15:51:29 +00:00
Jaroslav Kysela
6746dabeb1 Fixed capture for plugins 2002-04-16 19:24:58 +00:00
Jaroslav Kysela
c31a3bff06 Fixed typo 2002-03-11 13:19:28 +00:00
Takashi Iwai
9fc594f47b fixed segfault in rate conversions. 2002-03-08 14:29:09 +00:00
Jaroslav Kysela
aeeb396002 Added abort when no more frames can be processed 2002-03-03 09:24:14 +00:00
Jaroslav Kysela
4a0e9058a9 Fixed xfer variable initialization for capture in avail_update() 2002-02-21 15:03:50 +00:00
Jaroslav Kysela
e128bf856e Cleaned the mmap_commit implementations in plugins. 
Added undo callbacks for snd_pcm_plugin based plugins.
  - helpers when mmap_commit proceed only a partial transfer
Fixes to avail_update implementation in pcm_hw.c.
 2002-02-21 15:01:34 +00:00
Jaroslav Kysela
a24b602f28 Added initial comments for PCM plugins 2002-01-16 16:42:40 +00:00
Jaroslav Kysela
8c1887d7af Moved some prototypes from src/pcm/pcm_plugin.h to include/pcm_plugin.h. 
Merged src/pcm/atomic.h to include/iatomic.h.
Added initial description of hw and hooks plugins.
 2002-01-12 10:52:42 +00:00
Jaroslav Kysela
3e3df2d32b Updated GNU GPL license (address). 
Changed GNU LGPL licence from 2.0 to 2.1.
 2001-12-30 09:22:54 +00:00
Jaroslav Kysela
b7b11c3558 - added snd_pcm_mmap_begin_avail function; it is optimized for use after 
snd_pcm_avail_update() call
- fixed broken hw_ptr management inside snd_pcm_plugin code
 2001-12-09 18:41:23 +00:00
Jaroslav Kysela
b63e44aab0 Synchronized snd_pcm_write_areas and snd_pcm_read_areas with the kernel 
write/read functions.
Changed snd_pcm_xfer_areas_func_t to return snd_pcm_sframes_t (pass errors).
 2001-12-09 12:32:42 +00:00
Jaroslav Kysela
0917ba63b0 Changed result of mmap_commit callback 
(follows description of snd_pcm_mmap_commit function).
 2001-12-08 21:02:20 +00:00
Jaroslav Kysela
3c59c6b11d Added power management functions and defines. 2001-09-26 13:57:04 +00:00
Abramo Bagnara
c51095434d Fixed missing frames count initialization 2001-06-30 08:24:41 +00:00
Abramo Bagnara
6a3b962d06 Better PCM mmap API. Fixed pcm_multi 2001-04-13 15:40:53 +00:00
Abramo Bagnara
5b50ec848a Lot of cleanings with the help of gcc3 2001-03-29 17:50:28 +00:00
Abramo Bagnara
d87059867b Added pcm_meter skeleton 2001-03-01 22:47:34 +00:00
Abramo Bagnara
a02e742609 Added multithread aware status for plugins 2001-02-27 18:21:31 +00:00
Abramo Bagnara
3196ef28ae Typo 2001-02-27 17:02:56 +00:00
Abramo Bagnara
3830b168ef Improved plugin code (simpler, faster and multithread ready) 2001-02-27 13:42:12 +00:00
Abramo Bagnara
460660d4b4 More generic support for poll descriptors 2001-02-12 23:51:49 +00:00
Abramo Bagnara
a2d3434961 Completed mixer API. Improved iterators. Renamed control values struct. Rewritten simple elements implementation 2001-02-11 15:45:35 +00:00
Abramo Bagnara
a83b209df2 Fixed repeated prepare call 2001-02-05 09:35:17 +00:00
Abramo Bagnara
a7561a9c7e Corrected and completed encapsulation for PCM and rawmidi. Remove SND_PCM_HW_PARAM_* and use functions. Separated rawmidi info between streams 2001-02-04 17:03:17 +00:00
Abramo Bagnara
de19407578 Removed card type from devices info. Added card number to devices info. Completed encapsulation of PCM API. Removed snd_pcm_card(). All copy functions now have the form copy(dst, src). 2001-01-31 17:26:56 +00:00
Abramo Bagnara
c07201926b Promoted plugin helpers to general use 2001-01-26 09:56:30 +00:00
Abramo Bagnara
f12a252f20 Added support for hw_free in alsa-lib 2001-01-19 13:10:50 +00:00
Abramo Bagnara
3126678e72 Major cleaning to hw_params mechanism for plugins 2001-01-18 18:20:31 +00:00
Abramo Bagnara
cc90e32557 New PCM model with fragment concept removal and two interrupt sources 
Renamed size_t/ssize_t to snd_pcm_sframes_t/snd_pcm_uframes_t
 2001-01-15 11:06:53 +00:00
Abramo Bagnara
7e4938fa0e Use enum instead of #define where appropriate 2001-01-08 15:31:34 +00:00