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20 commits

Author SHA1 Message Date
Andree Buschmann
e8dc7a6d07 Migrate some floating point code to fixed point in libgme. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30493 a1c6a512-1295-4272-9138-f99709370657
 2011-09-10 02:52:12 +00:00
Andree Buschmann
13cbade08a Update libgme to Blargg's Game_Music_Emu 0.6-pre. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30397 a1c6a512-1295-4272-9138-f99709370657
 2011-08-31 19:19:49 +00:00
Andree Buschmann
e88d24a840 Submit parts of FS#12189 regarding codec API. Replaces access to global settings with a dedicated function to determine if the current track shall be looped. Used by several synthesizer codecs. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30391 a1c6a512-1295-4272-9138-f99709370657
 2011-08-30 19:40:09 +00:00
Andree Buschmann
a1145a1d04 Remove all IRAM attributes from libGME to be able to restart the IRAM optimization on a clean code base. As first step move the sample buffers to IRAM which results in a 1-5% speedup for all codecs. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30284 a1c6a512-1295-4272-9138-f99709370657
 2011-08-13 16:41:14 +00:00
Andree Buschmann
acb0917556 Submit initial patch from FS#12176. Adds support for several new game music formats (AY, GBS, HES, KSS, SGC, VGM and VGZ) and replaces the current NSF and NSFE with a new implementation based on a port of the Game Music Emu library 'GME'. This first submit does not cover the full functionality provided by the author's original patch: Coleco-SGV is not supported, some GME-specific m3u-support has been removed and IRAM is not used yet. Further changes are very likely to follow this submit. Thanks to Mauricio Garrido. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30264 a1c6a512-1295-4272-9138-f99709370657
 2011-08-07 20:01:04 +00:00
Andree Buschmann
9f65f2b6ad Accept FS#12143 (NSF codec clean up): Declare local stuff static, comment unused variables and functions. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29972 a1c6a512-1295-4272-9138-f99709370657
 2011-06-05 13:05:09 +00:00
Andree Buschmann
41723bc14b FS#12113: Optimize IRAM configuration for NES Sound Format. Performance is stable on Coldfire and shows performance gains from about 50-100% (PP5020, S5L870x, PP5022) up to 168% (PP5002). 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29886 a1c6a512-1295-4272-9138-f99709370657
 2011-05-15 15:00:41 +00:00
Michael Sevakis
ac724cca19 Get the NSF internal playlists working again. Fix a few wrongdoings in the metadata parser. Use the larger of track or playlist count to determine 'duration' so that the repeat-one switching to access the raw tracks works. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29793 a1c6a512-1295-4272-9138-f99709370657
 2011-04-28 02:56:28 +00:00
Michael Sevakis
3d9c062822 Get NSF fixed up a bit and parse metadata in the core. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29790 a1c6a512-1295-4272-9138-f99709370657
 2011-04-27 16:46:27 +00:00
Michael Sevakis
c537d5958e Commit FS#12069 - Playback rework - first stages. Gives as thorough as possible a treatment of codec management, track change and metadata logic as possible while maintaining fairly narrow focus and not rewriting everything all at once. Please see the rockbox-dev mail archive on 2011-04-25 (Playback engine rework) for a more thorough manifest of what was addressed. Plugins and codecs become incompatible. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29785 a1c6a512-1295-4272-9138-f99709370657
 2011-04-27 03:08:23 +00:00
Michael Sevakis
85e40257dc Enforce that codecs wait for their metadata in a proper-ish and consistent manner. Sort of a halfway patch; best would be to give them an internal copy of the current track information which lasts unaltered by playback until a track switch or unload. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29348 a1c6a512-1295-4272-9138-f99709370657
 2011-02-20 15:27:10 +00:00
Thomas Martitz
0a1d7c28b7 Make open() posix compliant api-wise. A few calls (those with O_CREAT) need the additional optional mode parameter so add it. Impact for the core is almost zero, as open() is a wrapper macro for the real open function which doesn't take the variable parameter. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25844 a1c6a512-1295-4272-9138-f99709370657
 2010-05-06 17:35:13 +00:00
Bertrik Sikken
8e22f7f5b0 Make local functions static in codecs, where possible. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19612 a1c6a512-1295-4272-9138-f99709370657
 2008-12-29 19:49:48 +00:00
Daniel Stenberg
2acc0ac542 Updated our source code header to explicitly mention that we are GPL v2 or 
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
 2008-06-28 18:10:04 +00:00
Michael Sevakis
9b9e22731c SWCODEC: Fix the problem of replaygain not being applied unless the menu is entered. Make all codecs set the replay gain or else formats that do not have replaygain will not set the gain back to default if a file with gain applied proceeded them. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12498 a1c6a512-1295-4272-9138-f99709370657
 2007-02-26 17:15:04 +00:00
Michael Sevakis
97f369a587 SWCODEC: Annoying neatness update. Use intptr_t for codec_configure_callback and dsp_configure and stop all the silly type casting of intergral types to pointers to set dsp configuration and watermarks. Shouldn't have any effect on already compiled codecs at all. Will fix any important patches in the tracker so they compile. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12259 a1c6a512-1295-4272-9138-f99709370657
 2007-02-10 16:34:16 +00:00
Adam Gashlin
88c0d9d80f VRC6 speedup/bugfix from Takashi Obara, FS #6635 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12239 a1c6a512-1295-4272-9138-f99709370657
 2007-02-09 08:41:43 +00:00
Michael Sevakis
aba6ca0881 Fix resampling clicking as much as possible at the moment. 1) Upsampling clicked because of size inaccuracies returned by DSP. Fix by simplifying audio system to use per-channel sample count from codec to pcm buffer. 2) Downsampling affected by 1) and was often starting passed the end of the data when not enough was available to generate an output sample. Fix by clamping input range to last sample in buffer and using the last sample value in the buffer. A perfect fix will require a double buffering scheme on the resampler to sufficient data during small data transients on both ends at all times of the down ratio on input and the up ratio on output. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12218 a1c6a512-1295-4272-9138-f99709370657
 2007-02-07 00:51:50 +00:00
Adam Gashlin
47ddbd48d6 NES codec improvements - N106 fixed point implementation from FS #6603, removed redundant or unused tables and flags 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12167 a1c6a512-1295-4272-9138-f99709370657
 2007-01-31 21:23:14 +00:00
Adam Gashlin
5d20c9d121 adding NSF (NES music) codec 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12112 a1c6a512-1295-4272-9138-f99709370657
 2007-01-25 18:06:17 +00:00